Exemplo n.º 1
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    def __init__(self, layer):
        super().__init__()

        self.layer = layer
        layer.events.blending.connect(self._on_blending_change)
        layer.events.opacity.connect(self._on_opacity_change)
        self.setObjectName('layer')
        self.setMouseTracking(True)

        self.grid_layout = QGridLayout(self)
        self.grid_layout.setContentsMargins(0, 0, 0, 0)
        self.grid_layout.setSpacing(2)
        self.grid_layout.setColumnMinimumWidth(0, 86)
        self.grid_layout.setColumnStretch(1, 1)
        self.setLayout(self.grid_layout)

        sld = QSlider(Qt.Horizontal, parent=self)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(0)
        sld.setMaximum(100)
        sld.setSingleStep(1)
        sld.valueChanged.connect(self.changeOpacity)
        self.opacitySlider = sld
        self._on_opacity_change()

        blend_comboBox = QComboBox(self)
        blend_comboBox.addItems(Blending.keys())
        index = blend_comboBox.findText(
            self.layer.blending, Qt.MatchFixedString
        )
        blend_comboBox.setCurrentIndex(index)
        blend_comboBox.activated[str].connect(self.changeBlending)
        self.blendComboBox = blend_comboBox
Exemplo n.º 2
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    def __init__(self, layer):
        super().__init__()

        self.layer = layer
        layer.events.blending.connect(self._on_blending_change)
        layer.events.opacity.connect(self._on_opacity_change)
        self.setObjectName('layer')
        self.setMouseTracking(True)

        self.grid_layout = QGridLayout()
        self.grid_layout.setContentsMargins(0, 0, 0, 0)
        self.grid_layout.setSpacing(2)
        self.setLayout(self.grid_layout)

        sld = QSlider(Qt.Horizontal)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(0)
        sld.setMaximum(100)
        sld.setSingleStep(1)
        sld.setValue(self.layer.opacity * 100)
        sld.valueChanged[int].connect(
            lambda value=sld: self.changeOpacity(value))
        self.opacitySilder = sld

        blend_comboBox = QComboBox()
        for blend in Blending:
            blend_comboBox.addItem(str(blend))
        index = blend_comboBox.findText(self.layer.blending,
                                        Qt.MatchFixedString)
        blend_comboBox.setCurrentIndex(index)
        blend_comboBox.activated[str].connect(
            lambda text=blend_comboBox: self.changeBlending(text))
        self.blendComboBox = blend_comboBox
Exemplo n.º 3
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    def createSlider(self):
        slider = QSlider(Qt.Vertical)

        slider.setRange(0, 360 * 16)
        slider.setSingleStep(16)
        slider.setPageStep(15 * 16)
        slider.setTickInterval(15 * 16)
        slider.setTickPosition(QSlider.TicksRight)

        return slider
Exemplo n.º 4
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    def createZoomSlider(self):
        slider = QSlider(Qt.Vertical)

        slider.setRange(1, 1000000)
        slider.setSingleStep(1)
        slider.setPageStep(10)
        slider.setTickInterval(10)
        slider.setTickPosition(QSlider.TicksRight)

        return slider
Exemplo n.º 5
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    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.edge_width.connect(self._on_edge_width_change)
        self.layer.events.edge_color.connect(self._on_edge_color_change)
        self.layer.events.face_color.connect(self._on_face_color_change)

        sld = QSlider(Qt.Horizontal, self)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setFixedWidth(75)
        sld.setMinimum(0)
        sld.setMaximum(40)
        sld.setSingleStep(1)
        value = self.layer.edge_width
        if isinstance(value, Iterable):
            if isinstance(value, list):
                value = np.asarray(value)
            value = value.mean()
        sld.setValue(int(value))
        sld.valueChanged[int].connect(lambda value=sld:
                                      self.changeWidth(value))
        self.widthSlider = sld
        self.grid_layout.addWidget(QLabel('width:'), 3, 0)
        self.grid_layout.addWidget(sld, 3, 1)

        face_comboBox = QComboBox()
        colors = self.layer._colors
        for c in colors:
            face_comboBox.addItem(c)
        index = face_comboBox.findText(
            self.layer.face_color, Qt.MatchFixedString)
        if index >= 0:
            face_comboBox.setCurrentIndex(index)
        face_comboBox.activated[str].connect(lambda text=face_comboBox:
                                             self.changeFaceColor(text))
        self.faceComboBox = face_comboBox
        self.grid_layout.addWidget(QLabel('face_color:'), 4, 0)
        self.grid_layout.addWidget(face_comboBox, 4, 1)

        edge_comboBox = QComboBox()
        colors = self.layer._colors
        for c in colors:
            edge_comboBox.addItem(c)
        index = edge_comboBox.findText(
            self.layer.edge_color, Qt.MatchFixedString)
        if index >= 0:
            edge_comboBox.setCurrentIndex(index)
        edge_comboBox.activated[str].connect(lambda text=edge_comboBox:
                                             self.changeEdgeColor(text))
        self.edgeComboBox = edge_comboBox
        self.grid_layout.addWidget(QLabel('edge_color:'), 5, 0)
        self.grid_layout.addWidget(edge_comboBox, 5, 1)

        self.setExpanded(False)
    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.colormap.connect(self._on_colormap_change)
        self.layer.events.gamma.connect(self._on_gamma_change)
        self.layer.events.contrast_limits.connect(
            self._on_contrast_limits_change
        )

        comboBox = QtColormapComboBox(self)
        comboBox.setObjectName("colormapComboBox")
        comboBox._allitems = set(self.layer.colormaps)

        for name, cm in AVAILABLE_COLORMAPS.items():
            if name in self.layer.colormaps:
                comboBox.addItem(cm._display_name, name)

        comboBox.activated[str].connect(self.changeColor)
        self.colormapComboBox = comboBox

        # Create contrast_limits slider
        self.contrastLimitsSlider = QHRangeSlider(
            self.layer.contrast_limits,
            self.layer.contrast_limits_range,
            parent=self,
        )
        self.contrastLimitsSlider.mousePressEvent = self._clim_mousepress
        set_clim = partial(setattr, self.layer, 'contrast_limits')
        set_climrange = partial(setattr, self.layer, 'contrast_limits_range')
        self.contrastLimitsSlider.valuesChanged.connect(set_clim)
        self.contrastLimitsSlider.rangeChanged.connect(set_climrange)

        # gamma slider
        sld = QSlider(Qt.Horizontal, parent=self)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(2)
        sld.setMaximum(200)
        sld.setSingleStep(2)
        sld.setValue(100)
        sld.valueChanged.connect(self.gamma_slider_changed)
        self.gammaSlider = sld
        self._on_gamma_change()

        self.colorbarLabel = QLabel(parent=self)
        self.colorbarLabel.setObjectName('colorbar')
        self.colorbarLabel.setToolTip(trans._('Colorbar'))

        self._on_colormap_change()
Exemplo n.º 7
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    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.colormap.connect(self._on_colormap_change)
        self.layer.events.contrast_limits.connect(
            lambda e: self.contrast_limits_slider_update()
        )
        self.layer.events.gamma.connect(lambda e: self.gamma_slider_update())

        comboBox = QComboBox()
        for cmap in self.layer.colormaps:
            comboBox.addItem(cmap)
        comboBox._allitems = set(self.layer.colormaps)
        comboBox.activated[str].connect(
            lambda text=comboBox: self.changeColor(text)
        )
        self.colormapComboBox = comboBox

        # Create contrast_limits slider
        self.contrastLimitsSlider = QHRangeSlider(
            slider_range=[0, 1, 0.0001], values=[0, 1]
        )
        self.contrastLimitsSlider.setEmitWhileMoving(True)
        self.contrastLimitsSlider.collapsable = False
        self.contrastLimitsSlider.setEnabled(True)

        self.contrastLimitsSlider.rangeChanged.connect(
            self.contrast_limits_slider_changed
        )
        self.contrast_limits_slider_update()

        # gamma slider
        sld = QSlider(Qt.Horizontal)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(2)
        sld.setMaximum(200)
        sld.setSingleStep(2)
        sld.setValue(100)
        sld.valueChanged[int].connect(self.gamma_slider_changed)
        self.gammaSlider = sld
        self.gamma_slider_update()

        self.colorbarLabel = QLabel()
        self.colorbarLabel.setObjectName('colorbar')
        self.colorbarLabel.setToolTip('Colorbar')

        self._on_colormap_change(None)
Exemplo n.º 8
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    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.colormap.connect(self._on_colormap_change)
        self.layer.events.gamma.connect(self.gamma_slider_update)
        self.layer.events.contrast_limits.connect(self._on_clims_change)

        comboBox = QComboBox()
        comboBox.addItems(self.layer.colormaps)
        comboBox._allitems = set(self.layer.colormaps)
        comboBox.activated[str].connect(self.changeColor)
        self.colormapComboBox = comboBox

        # Create contrast_limits slider
        self.contrastLimitsSlider = QHRangeSlider(
            self.layer.contrast_limits, self.layer.contrast_limits_range
        )
        self.contrastLimitsSlider.mousePressEvent = self._clim_mousepress
        set_clim = partial(setattr, self.layer, 'contrast_limits')
        set_climrange = partial(setattr, self.layer, 'contrast_limits_range')
        self.contrastLimitsSlider.valuesChanged.connect(set_clim)
        self.contrastLimitsSlider.rangeChanged.connect(set_climrange)

        # gamma slider
        sld = QSlider(Qt.Horizontal)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(2)
        sld.setMaximum(200)
        sld.setSingleStep(2)
        sld.setValue(100)
        sld.valueChanged.connect(self.gamma_slider_changed)
        self.gammaSlider = sld
        self.gamma_slider_update()

        self.colorbarLabel = QLabel()
        self.colorbarLabel.setObjectName('colorbar')
        self.colorbarLabel.setToolTip('Colorbar')

        self._on_colormap_change()
Exemplo n.º 9
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    def __init__(self, layer):
        super().__init__()

        self.layer = layer
        self.layer.events.blending.connect(self._on_blending_change)
        self.layer.events.opacity.connect(self._on_opacity_change)

        self.setAttribute(Qt.WA_DeleteOnClose)

        self.setObjectName('layer')
        self.setMouseTracking(True)

        self.grid_layout = QGridLayout(self)
        self.grid_layout.setContentsMargins(0, 0, 0, 0)
        self.grid_layout.setSpacing(2)
        self.grid_layout.setColumnMinimumWidth(0, 86)
        self.grid_layout.setColumnStretch(1, 1)
        self.setLayout(self.grid_layout)

        sld = QSlider(Qt.Horizontal, parent=self)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(0)
        sld.setMaximum(100)
        sld.setSingleStep(1)
        sld.valueChanged.connect(self.changeOpacity)
        self.opacitySlider = sld
        self._on_opacity_change()

        blend_comboBox = QComboBox(self)
        for index, (data, text) in enumerate(BLENDING_TRANSLATIONS.items()):
            data = data.value
            blend_comboBox.addItem(text, data)
            if data == self.layer.blending:
                blend_comboBox.setCurrentIndex(index)

        blend_comboBox.activated[str].connect(self.changeBlending)
        self.blendComboBox = blend_comboBox
Exemplo n.º 10
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    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.mode.connect(self._on_mode_change)
        self.layer.events.edge_width.connect(self._on_edge_width_change)
        self.layer.events.current_edge_color.connect(
            self._on_current_edge_color_change)
        self.layer.events.current_face_color.connect(
            self._on_current_face_color_change)
        self.layer.events.editable.connect(self._on_editable_change)
        self.layer.text.events.visible.connect(self._on_text_visibility_change)

        sld = QSlider(Qt.Horizontal)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(0)
        sld.setMaximum(40)
        sld.setSingleStep(1)
        value = self.layer.current_edge_width
        if isinstance(value, Iterable):
            if isinstance(value, list):
                value = np.asarray(value)
            value = value.mean()
        sld.setValue(int(value))
        sld.valueChanged.connect(self.changeWidth)
        self.widthSlider = sld

        self.select_button = QtModeRadioButton(layer,
                                               'select',
                                               Mode.SELECT,
                                               tooltip='Select shapes')
        self.direct_button = QtModeRadioButton(layer,
                                               'direct',
                                               Mode.DIRECT,
                                               tooltip='Select vertices')
        self.panzoom_button = QtModeRadioButton(layer,
                                                'zoom',
                                                Mode.PAN_ZOOM,
                                                tooltip='Pan/zoom',
                                                checked=True)
        self.rectangle_button = QtModeRadioButton(layer,
                                                  'rectangle',
                                                  Mode.ADD_RECTANGLE,
                                                  tooltip='Add rectangles')
        self.ellipse_button = QtModeRadioButton(layer,
                                                'ellipse',
                                                Mode.ADD_ELLIPSE,
                                                tooltip='Add ellipses')
        self.line_button = QtModeRadioButton(layer,
                                             'line',
                                             Mode.ADD_LINE,
                                             tooltip='Add lines')
        self.path_button = QtModeRadioButton(layer,
                                             'path',
                                             Mode.ADD_PATH,
                                             tooltip='Add paths')
        self.polygon_button = QtModeRadioButton(layer,
                                                'polygon',
                                                Mode.ADD_POLYGON,
                                                tooltip='Add polygons')
        self.vertex_insert_button = QtModeRadioButton(layer,
                                                      'vertex_insert',
                                                      Mode.VERTEX_INSERT,
                                                      tooltip='Insert vertex')
        self.vertex_remove_button = QtModeRadioButton(layer,
                                                      'vertex_remove',
                                                      Mode.VERTEX_REMOVE,
                                                      tooltip='Remove vertex')

        self.move_front_button = QtModePushButton(
            layer,
            'move_front',
            slot=self.layer.move_to_front,
            tooltip='Move to front',
        )
        self.move_back_button = QtModePushButton(
            layer,
            'move_back',
            slot=self.layer.move_to_back,
            tooltip='Move to back',
        )
        self.delete_button = QtModePushButton(
            layer,
            'delete_shape',
            slot=self.layer.remove_selected,
            tooltip='Delete selected shapes',
        )

        self.button_group = QButtonGroup(self)
        self.button_group.addButton(self.select_button)
        self.button_group.addButton(self.direct_button)
        self.button_group.addButton(self.panzoom_button)
        self.button_group.addButton(self.rectangle_button)
        self.button_group.addButton(self.ellipse_button)
        self.button_group.addButton(self.line_button)
        self.button_group.addButton(self.path_button)
        self.button_group.addButton(self.polygon_button)
        self.button_group.addButton(self.vertex_insert_button)
        self.button_group.addButton(self.vertex_remove_button)

        button_grid = QGridLayout()
        button_grid.addWidget(self.vertex_remove_button, 0, 2)
        button_grid.addWidget(self.vertex_insert_button, 0, 3)
        button_grid.addWidget(self.delete_button, 0, 4)
        button_grid.addWidget(self.direct_button, 0, 5)
        button_grid.addWidget(self.select_button, 0, 6)
        button_grid.addWidget(self.panzoom_button, 0, 7)
        button_grid.addWidget(self.move_back_button, 1, 1)
        button_grid.addWidget(self.move_front_button, 1, 2)
        button_grid.addWidget(self.ellipse_button, 1, 3)
        button_grid.addWidget(self.rectangle_button, 1, 4)
        button_grid.addWidget(self.polygon_button, 1, 5)
        button_grid.addWidget(self.line_button, 1, 6)
        button_grid.addWidget(self.path_button, 1, 7)
        button_grid.setContentsMargins(5, 0, 0, 5)
        button_grid.setColumnStretch(0, 1)
        button_grid.setSpacing(4)

        self.faceColorEdit = QColorSwatchEdit(
            initial_color=self.layer.current_face_color,
            tooltip='click to set current face color',
        )
        self._on_current_face_color_change()
        self.edgeColorEdit = QColorSwatchEdit(
            initial_color=self.layer.current_edge_color,
            tooltip='click to set current edge color',
        )
        self._on_current_edge_color_change()
        self.faceColorEdit.color_changed.connect(self.changeFaceColor)
        self.edgeColorEdit.color_changed.connect(self.changeEdgeColor)

        text_disp_cb = QCheckBox()
        text_disp_cb.setToolTip('toggle text visibility')
        text_disp_cb.setChecked(self.layer.text.visible)
        text_disp_cb.stateChanged.connect(self.change_text_visibility)
        self.textDispCheckBox = text_disp_cb

        # grid_layout created in QtLayerControls
        # addWidget(widget, row, column, [row_span, column_span])
        self.grid_layout.addLayout(button_grid, 0, 0, 1, 2)
        self.grid_layout.addWidget(QLabel('opacity:'), 1, 0)
        self.grid_layout.addWidget(self.opacitySlider, 1, 1)
        self.grid_layout.addWidget(QLabel('edge width:'), 2, 0)
        self.grid_layout.addWidget(self.widthSlider, 2, 1)
        self.grid_layout.addWidget(QLabel('blending:'), 3, 0)
        self.grid_layout.addWidget(self.blendComboBox, 3, 1)
        self.grid_layout.addWidget(QLabel('face color:'), 4, 0)
        self.grid_layout.addWidget(self.faceColorEdit, 4, 1)
        self.grid_layout.addWidget(QLabel('edge color:'), 5, 0)
        self.grid_layout.addWidget(self.edgeColorEdit, 5, 1)
        self.grid_layout.addWidget(QLabel('display text:'), 6, 0)
        self.grid_layout.addWidget(self.textDispCheckBox, 6, 1)
        self.grid_layout.setRowStretch(7, 1)
        self.grid_layout.setColumnStretch(1, 1)
        self.grid_layout.setSpacing(4)
Exemplo n.º 11
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class QtTracksControls(QtLayerControls):
    """Qt view and controls for the Tracks layer.

    Parameters
    ----------
    layer : napari.layers.Tracks
        An instance of a Tracks layer.

    Attributes
    ----------
    grid_layout : qtpy.QtWidgets.QGridLayout
        Layout of Qt widget controls for the layer.
    layer : layers.Tracks
        An instance of a Tracks layer.

    """
    def __init__(self, layer):
        super().__init__(layer)

        # NOTE(arl): there are no events fired for changing checkboxes
        self.layer.events.tail_width.connect(self._on_tail_width_change)
        self.layer.events.tail_length.connect(self._on_tail_length_change)
        self.layer.events.properties.connect(self._on_properties_change)
        self.layer.events.colormap.connect(self._on_colormap_change)
        self.layer.events.color_by.connect(self._on_color_by_change)

        # combo box for track coloring, we can get these from the properties
        # keys
        self.color_by_combobox = QComboBox()
        self.color_by_combobox.addItems(self.layer.properties_to_color_by)

        self.colormap_combobox = QComboBox()
        for name, colormap in AVAILABLE_COLORMAPS.items():
            display_name = colormap._display_name
            self.colormap_combobox.addItem(display_name, name)

        # slider for track tail length
        self.tail_length_slider = QSlider(Qt.Horizontal)
        self.tail_length_slider.setFocusPolicy(Qt.NoFocus)
        self.tail_length_slider.setMinimum(1)
        self.tail_length_slider.setMaximum(MAX_TAIL_LENGTH)
        self.tail_length_slider.setSingleStep(1)

        # slider for track edge width
        self.tail_width_slider = QSlider(Qt.Horizontal)
        self.tail_width_slider.setFocusPolicy(Qt.NoFocus)
        self.tail_width_slider.setMinimum(1)
        self.tail_width_slider.setMaximum(MAX_TAIL_WIDTH)
        self.tail_width_slider.setSingleStep(1)

        # checkboxes for display
        self.id_checkbox = QCheckBox()
        self.tail_checkbox = QCheckBox()
        self.tail_checkbox.setChecked(True)
        self.graph_checkbox = QCheckBox()
        self.graph_checkbox.setChecked(True)

        self.tail_width_slider.valueChanged.connect(self.change_tail_width)
        self.tail_length_slider.valueChanged.connect(self.change_tail_length)
        self.tail_checkbox.stateChanged.connect(self.change_display_tail)
        self.id_checkbox.stateChanged.connect(self.change_display_id)
        self.graph_checkbox.stateChanged.connect(self.change_display_graph)
        self.color_by_combobox.currentTextChanged.connect(self.change_color_by)
        self.colormap_combobox.currentTextChanged.connect(self.change_colormap)

        # grid_layout created in QtLayerControls
        # addWidget(widget, row, column, [row_span, column_span])

        self.grid_layout.addWidget(QLabel(trans._('color by:')), 0, 0)
        self.grid_layout.addWidget(self.color_by_combobox, 0, 1)
        self.grid_layout.addWidget(QLabel(trans._('colormap:')), 1, 0)
        self.grid_layout.addWidget(self.colormap_combobox, 1, 1)
        self.grid_layout.addWidget(QLabel(trans._('blending:')), 2, 0)
        self.grid_layout.addWidget(self.blendComboBox, 2, 1)
        self.grid_layout.addWidget(QLabel(trans._('opacity:')), 3, 0)
        self.grid_layout.addWidget(self.opacitySlider, 3, 1)
        self.grid_layout.addWidget(QLabel(trans._('tail width:')), 4, 0)
        self.grid_layout.addWidget(self.tail_width_slider, 4, 1)
        self.grid_layout.addWidget(QLabel(trans._('tail length:')), 5, 0)
        self.grid_layout.addWidget(self.tail_length_slider, 5, 1)
        self.grid_layout.addWidget(QLabel(trans._('tail:')), 6, 0)
        self.grid_layout.addWidget(self.tail_checkbox, 6, 1)
        self.grid_layout.addWidget(QLabel(trans._('show ID:')), 7, 0)
        self.grid_layout.addWidget(self.id_checkbox, 7, 1)
        self.grid_layout.addWidget(QLabel(trans._('graph:')), 8, 0)
        self.grid_layout.addWidget(self.graph_checkbox, 8, 1)
        self.grid_layout.setRowStretch(9, 1)
        self.grid_layout.setColumnStretch(1, 1)
        self.grid_layout.setSpacing(4)

        self._on_tail_length_change()
        self._on_tail_width_change()
        self._on_colormap_change()
        self._on_color_by_change()

    def _on_tail_width_change(self, event=None):
        """Receive layer model track line width change event and update slider.

        Parameters
        ----------
        event : qtpy.QtCore.QEvent, optional.
            Event from the Qt context, by default None.
        """
        with self.layer.events.tail_width.blocker():
            value = self.layer.tail_width
            value = np.clip(int(2 * value), 1, MAX_TAIL_WIDTH)
            self.tail_width_slider.setValue(value)

    def _on_tail_length_change(self, event=None):
        """Receive layer model track line width change event and update slider.

        Parameters
        ----------
        event : qtpy.QtCore.QEvent, optional.
            Event from the Qt context, by default None.
        """
        with self.layer.events.tail_length.blocker():
            value = self.layer.tail_length
            value = np.clip(value, 1, MAX_TAIL_LENGTH)
            self.tail_length_slider.setValue(value)

    def _on_properties_change(self, event=None):
        """Change the properties that can be used to color the tracks."""
        with self.layer.events.properties.blocker():

            with qt_signals_blocked(self.color_by_combobox):
                self.color_by_combobox.clear()
            self.color_by_combobox.addItems(self.layer.properties_to_color_by)

    def _on_colormap_change(self, event=None):
        """Receive layer model colormap change event and update combobox.

        Parameters
        ----------
        event : qtpy.QtCore.QEvent, optional.
            Event from the Qt context, by default None.
        """
        with self.layer.events.colormap.blocker():
            self.colormap_combobox.setCurrentIndex(
                self.colormap_combobox.findData(self.layer.colormap))

    def _on_color_by_change(self, event=None):
        """Receive layer model color_by change event and update combobox.

        Parameters
        ----------
        event : qtpy.QtCore.QEvent, optional.
            Event from the Qt context, by default None.
        """
        with self.layer.events.color_by.blocker():
            color_by = self.layer.color_by

            idx = self.color_by_combobox.findText(color_by,
                                                  Qt.MatchFixedString)
            self.color_by_combobox.setCurrentIndex(idx)

    def change_tail_width(self, value):
        """Change track line width of shapes on the layer model.

        Parameters
        ----------
        value : float
            Line width of track tails.
        """
        self.layer.tail_width = float(value) / 2.0

    def change_tail_length(self, value):
        """Change edge line width of shapes on the layer model.

        Parameters
        ----------
        value : int
            Line length of track tails.
        """
        self.layer.tail_length = value

    def change_display_tail(self, state):
        self.layer.display_tail = self.tail_checkbox.isChecked()

    def change_display_id(self, state):
        self.layer.display_id = self.id_checkbox.isChecked()

    def change_display_graph(self, state):
        self.layer.display_graph = self.graph_checkbox.isChecked()

    def change_color_by(self, value: str):
        self.layer.color_by = value

    def change_colormap(self, colormap: str):
        self.layer.colormap = self.colormap_combobox.currentData()
Exemplo n.º 12
0
    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.mode.connect(self._on_mode_change)
        self.layer.events.selected_label.connect(self._on_selection_change)
        self.layer.events.brush_size.connect(self._on_brush_size_change)
        self.layer.events.contiguous.connect(self._on_contig_change)
        self.layer.events.n_dimensional.connect(self._on_n_dim_change)
        self.layer.events.editable.connect(self._on_editable_change)
        self.layer.events.preserve_labels.connect(
            self._on_preserve_labels_change
        )
        self.layer.events.color_mode.connect(self._on_color_mode_change)

        # selection spinbox
        self.selectionSpinBox = QSpinBox()
        self.selectionSpinBox.setKeyboardTracking(False)
        self.selectionSpinBox.setSingleStep(1)
        self.selectionSpinBox.setMinimum(0)
        self.selectionSpinBox.setMaximum(2147483647)
        self.selectionSpinBox.valueChanged.connect(self.changeSelection)
        self.selectionSpinBox.setAlignment(Qt.AlignCenter)
        self._on_selection_change()

        sld = QSlider(Qt.Horizontal)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(1)
        sld.setMaximum(40)
        sld.setSingleStep(1)
        sld.valueChanged.connect(self.changeSize)
        self.brushSizeSlider = sld
        self._on_brush_size_change()

        contig_cb = QCheckBox()
        contig_cb.setToolTip('contiguous editing')
        contig_cb.stateChanged.connect(self.change_contig)
        self.contigCheckBox = contig_cb
        self._on_contig_change()

        ndim_cb = QCheckBox()
        ndim_cb.setToolTip('n-dimensional editing')
        ndim_cb.stateChanged.connect(self.change_ndim)
        self.ndimCheckBox = ndim_cb
        self._on_n_dim_change()

        preserve_labels_cb = QCheckBox()
        preserve_labels_cb.setToolTip(
            'preserve existing labels while painting'
        )
        preserve_labels_cb.stateChanged.connect(self.change_preserve_labels)
        self.preserveLabelsCheckBox = preserve_labels_cb
        self._on_preserve_labels_change()

        # shuffle colormap button
        self.colormapUpdate = QtModePushButton(
            None, 'shuffle', slot=self.changeColor, tooltip='shuffle colors',
        )

        self.panzoom_button = QtModeRadioButton(
            layer,
            'zoom',
            Mode.PAN_ZOOM,
            tooltip='Pan/zoom mode (Space)',
            checked=True,
        )
        self.pick_button = QtModeRadioButton(
            layer, 'picker', Mode.PICK, tooltip='Pick mode'
        )
        self.paint_button = QtModeRadioButton(
            layer, 'paint', Mode.PAINT, tooltip='Paint mode'
        )
        btn = 'Cmd' if sys.platform == 'darwin' else 'Ctrl'
        self.fill_button = QtModeRadioButton(
            layer, 'fill', Mode.FILL, tooltip=f'Fill mode ({btn})'
        )
        self.erase_button = QtModeRadioButton(
            layer, 'erase', Mode.ERASE, tooltip='Erase mode (Alt)'
        )

        self.button_group = QButtonGroup(self)
        self.button_group.addButton(self.panzoom_button)
        self.button_group.addButton(self.paint_button)
        self.button_group.addButton(self.pick_button)
        self.button_group.addButton(self.fill_button)
        self.button_group.addButton(self.erase_button)
        self._on_editable_change()

        button_row = QHBoxLayout()
        button_row.addStretch(1)
        button_row.addWidget(self.colormapUpdate)
        button_row.addWidget(self.erase_button)
        button_row.addWidget(self.fill_button)
        button_row.addWidget(self.paint_button)
        button_row.addWidget(self.pick_button)
        button_row.addWidget(self.panzoom_button)
        button_row.setSpacing(4)
        button_row.setContentsMargins(0, 0, 0, 5)

        color_mode_comboBox = QComboBox(self)
        color_mode_comboBox.addItems(LabelColorMode.keys())
        index = color_mode_comboBox.findText(
            self.layer.color_mode, Qt.MatchFixedString
        )
        color_mode_comboBox.setCurrentIndex(index)
        color_mode_comboBox.activated[str].connect(self.change_color_mode)
        self.colorModeComboBox = color_mode_comboBox
        self._on_color_mode_change()

        color_layout = QHBoxLayout()
        color_layout.addWidget(QtColorBox(layer))
        color_layout.addWidget(self.selectionSpinBox)

        # grid_layout created in QtLayerControls
        # addWidget(widget, row, column, [row_span, column_span])
        self.grid_layout.addLayout(button_row, 0, 0, 1, 4)
        self.grid_layout.addWidget(QLabel('label:'), 1, 0, 1, 1)
        self.grid_layout.addLayout(color_layout, 1, 1, 1, 3)
        self.grid_layout.addWidget(QLabel('opacity:'), 2, 0, 1, 1)
        self.grid_layout.addWidget(self.opacitySlider, 2, 1, 1, 3)
        self.grid_layout.addWidget(QLabel('brush size:'), 3, 0, 1, 1)
        self.grid_layout.addWidget(self.brushSizeSlider, 3, 1, 1, 3)
        self.grid_layout.addWidget(QLabel('blending:'), 4, 0, 1, 1)
        self.grid_layout.addWidget(self.blendComboBox, 4, 1, 1, 3)
        self.grid_layout.addWidget(QLabel('color mode:'), 5, 0, 1, 1)
        self.grid_layout.addWidget(self.colorModeComboBox, 5, 1, 1, 3)
        self.grid_layout.addWidget(QLabel('contiguous:'), 6, 0, 1, 1)
        self.grid_layout.addWidget(self.contigCheckBox, 6, 1, 1, 1)
        self.grid_layout.addWidget(QLabel('n-dim:'), 6, 2, 1, 1)
        self.grid_layout.addWidget(self.ndimCheckBox, 6, 3, 1, 1)
        self.grid_layout.addWidget(QLabel('preserve labels:'), 7, 0, 1, 2)
        self.grid_layout.addWidget(self.preserveLabelsCheckBox, 7, 1, 1, 1)
        self.grid_layout.setRowStretch(8, 1)
        self.grid_layout.setColumnStretch(1, 1)
        self.grid_layout.setSpacing(4)
Exemplo n.º 13
0
    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.n_dimensional.connect(self._on_n_dim_change)
        self.layer.events.symbol.connect(self._on_symbol_change)
        self.layer.events.size.connect(self._on_size_change)
        self.layer.events.edge_color.connect(self._on_edge_color_change)
        self.layer.events.face_color.connect(self._on_face_color_change)

        sld = QSlider(Qt.Horizontal, self)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setFixedWidth(110)
        sld.setMinimum(0)
        sld.setMaximum(100)
        sld.setSingleStep(1)
        value = self.layer.size
        if isinstance(value, Iterable):
            if isinstance(value, list):
                value = np.asarray(value)
            value = value.mean()
        sld.setValue(int(value))
        sld.valueChanged[int].connect(lambda value=sld: self.changeSize(value))
        self.sizeSlider = sld
        self.grid_layout.addWidget(QLabel('size:'), 3, 0)
        self.grid_layout.addWidget(sld, 3, 1)

        face_comboBox = QComboBox()
        colors = self.layer._colors
        for c in colors:
            face_comboBox.addItem(c)
        index = face_comboBox.findText(self.layer.face_color,
                                       Qt.MatchFixedString)
        face_comboBox.setCurrentIndex(index)
        face_comboBox.activated[str].connect(
            lambda text=face_comboBox: self.changeFaceColor(text))
        self.faceComboBox = face_comboBox
        self.grid_layout.addWidget(QLabel('face_color:'), 4, 0)
        self.grid_layout.addWidget(face_comboBox, 4, 1)

        edge_comboBox = QComboBox()
        colors = self.layer._colors
        for c in colors:
            edge_comboBox.addItem(c)
        index = edge_comboBox.findText(self.layer.edge_color,
                                       Qt.MatchFixedString)
        edge_comboBox.setCurrentIndex(index)
        edge_comboBox.activated[str].connect(
            lambda text=edge_comboBox: self.changeEdgeColor(text))
        self.edgeComboBox = edge_comboBox
        self.grid_layout.addWidget(QLabel('edge_color:'), 5, 0)
        self.grid_layout.addWidget(edge_comboBox, 5, 1)

        symbol_comboBox = QComboBox()
        for s in Symbol:
            symbol_comboBox.addItem(str(s))
        index = symbol_comboBox.findText(self.layer.symbol,
                                         Qt.MatchFixedString)
        symbol_comboBox.setCurrentIndex(index)
        symbol_comboBox.activated[str].connect(
            lambda text=symbol_comboBox: self.changeSymbol(text))
        self.symbolComboBox = symbol_comboBox
        self.grid_layout.addWidget(QLabel('symbol:'), 6, 0)
        self.grid_layout.addWidget(symbol_comboBox, 6, 1)

        ndim_cb = QCheckBox()
        ndim_cb.setToolTip('N-dimensional markers')
        ndim_cb.setChecked(self.layer.n_dimensional)
        ndim_cb.stateChanged.connect(
            lambda state=ndim_cb: self.change_ndim(state))
        self.ndimCheckBox = ndim_cb
        self.grid_layout.addWidget(QLabel('n-dim:'), 7, 0)
        self.grid_layout.addWidget(ndim_cb, 7, 1)

        self.setExpanded(False)
Exemplo n.º 14
0
    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.mode.connect(self.set_mode)
        self.layer.events.edge_width.connect(self._on_edge_width_change)
        self.layer.events.edge_color.connect(self._on_edge_color_change)
        self.layer.events.face_color.connect(self._on_face_color_change)
        self.layer.events.editable.connect(self._on_editable_change)

        sld = QSlider(Qt.Horizontal)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(0)
        sld.setMaximum(40)
        sld.setSingleStep(1)
        value = self.layer.edge_width
        if isinstance(value, Iterable):
            if isinstance(value, list):
                value = np.asarray(value)
            value = value.mean()
        sld.setValue(int(value))
        sld.valueChanged[int].connect(
            lambda value=sld: self.changeWidth(value)
        )
        self.widthSlider = sld

        face_comboBox = QComboBox()
        colors = self.layer._colors
        for c in colors:
            face_comboBox.addItem(c)
        face_comboBox.activated[str].connect(
            lambda text=face_comboBox: self.changeFaceColor(text)
        )
        self.faceComboBox = face_comboBox
        self.faceColorSwatch = QFrame()
        self.faceColorSwatch.setObjectName('swatch')
        self.faceColorSwatch.setToolTip('Face color swatch')
        self._on_face_color_change(None)

        edge_comboBox = QComboBox()
        colors = self.layer._colors
        for c in colors:
            edge_comboBox.addItem(c)
        edge_comboBox.activated[str].connect(
            lambda text=edge_comboBox: self.changeEdgeColor(text)
        )
        self.edgeComboBox = edge_comboBox
        self.edgeColorSwatch = QFrame()
        self.edgeColorSwatch.setObjectName('swatch')
        self.edgeColorSwatch.setToolTip('Edge color swatch')
        self._on_edge_color_change(None)

        self.select_button = QtModeButton(
            layer, 'select', Mode.SELECT, 'Select shapes'
        )
        self.direct_button = QtModeButton(
            layer, 'direct', Mode.DIRECT, 'Select vertices'
        )
        self.panzoom_button = QtModeButton(
            layer, 'zoom', Mode.PAN_ZOOM, 'Pan/zoom'
        )
        self.rectangle_button = QtModeButton(
            layer, 'rectangle', Mode.ADD_RECTANGLE, 'Add rectangles'
        )
        self.ellipse_button = QtModeButton(
            layer, 'ellipse', Mode.ADD_ELLIPSE, 'Add ellipses'
        )
        self.line_button = QtModeButton(
            layer, 'line', Mode.ADD_LINE, 'Add lines'
        )
        self.path_button = QtModeButton(
            layer, 'path', Mode.ADD_PATH, 'Add paths'
        )
        self.polygon_button = QtModeButton(
            layer, 'polygon', Mode.ADD_POLYGON, 'Add polygons'
        )
        self.vertex_insert_button = QtModeButton(
            layer, 'vertex_insert', Mode.VERTEX_INSERT, 'Insert vertex'
        )
        self.vertex_remove_button = QtModeButton(
            layer, 'vertex_remove', Mode.VERTEX_REMOVE, 'Remove vertex'
        )

        self.move_front_button = QtMoveFrontButton(layer)
        self.move_back_button = QtMoveBackButton(layer)
        self.delete_button = QtDeleteShapeButton(layer)
        self.panzoom_button.setChecked(True)

        self.button_group = QButtonGroup(self)
        self.button_group.addButton(self.select_button)
        self.button_group.addButton(self.direct_button)
        self.button_group.addButton(self.panzoom_button)
        self.button_group.addButton(self.rectangle_button)
        self.button_group.addButton(self.ellipse_button)
        self.button_group.addButton(self.line_button)
        self.button_group.addButton(self.path_button)
        self.button_group.addButton(self.polygon_button)
        self.button_group.addButton(self.vertex_insert_button)
        self.button_group.addButton(self.vertex_remove_button)

        button_grid = QGridLayout()
        button_grid.addWidget(self.vertex_remove_button, 0, 1)
        button_grid.addWidget(self.vertex_insert_button, 0, 2)
        button_grid.addWidget(self.delete_button, 0, 3)
        button_grid.addWidget(self.direct_button, 0, 4)
        button_grid.addWidget(self.select_button, 0, 5)
        button_grid.addWidget(self.panzoom_button, 0, 6)
        button_grid.addWidget(self.move_back_button, 1, 0)
        button_grid.addWidget(self.move_front_button, 1, 1)
        button_grid.addWidget(self.ellipse_button, 1, 2)
        button_grid.addWidget(self.rectangle_button, 1, 3)
        button_grid.addWidget(self.polygon_button, 1, 4)
        button_grid.addWidget(self.line_button, 1, 5)
        button_grid.addWidget(self.path_button, 1, 6)
        button_grid.setColumnStretch(2, 2)
        button_grid.setSpacing(4)

        # grid_layout created in QtLayerControls
        # addWidget(widget, row, column, [row_span, column_span])
        self.grid_layout.addLayout(button_grid, 0, 0, 1, 3)
        self.grid_layout.addWidget(QLabel('opacity:'), 1, 0)
        self.grid_layout.addWidget(self.opacitySilder, 1, 1, 1, 2)
        self.grid_layout.addWidget(QLabel('edge width:'), 2, 0)
        self.grid_layout.addWidget(self.widthSlider, 2, 1, 1, 2)
        self.grid_layout.addWidget(QLabel('blending:'), 3, 0)
        self.grid_layout.addWidget(self.blendComboBox, 3, 1, 1, 2)
        self.grid_layout.addWidget(QLabel('face color:'), 4, 0)
        self.grid_layout.addWidget(self.faceComboBox, 4, 2)
        self.grid_layout.addWidget(self.faceColorSwatch, 4, 1)
        self.grid_layout.addWidget(QLabel('edge color:'), 5, 0)
        self.grid_layout.addWidget(self.edgeComboBox, 5, 2)
        self.grid_layout.addWidget(self.edgeColorSwatch, 5, 1)
        self.grid_layout.setRowStretch(6, 1)
        self.grid_layout.setColumnStretch(1, 1)
        self.grid_layout.setSpacing(4)
Exemplo n.º 15
0
    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.mode.connect(self._on_mode_change)
        self.layer.events.selected_label.connect(self._on_selection_change)
        self.layer.events.brush_size.connect(self._on_brush_size_change)
        self.layer.events.contiguous.connect(self._on_contig_change)
        self.layer.events.n_dimensional.connect(self._on_n_dim_change)
        self.layer.events.editable.connect(self._on_editable_change)

        # shuffle colormap button
        self.colormapUpdate = QPushButton('shuffle colors')
        self.colormapUpdate.setObjectName('shuffle')
        self.colormapUpdate.clicked.connect(self.changeColor)
        self.colormapUpdate.setFixedHeight(28)

        # selection spinbox
        self.selectionSpinBox = QSpinBox()
        self.selectionSpinBox.setKeyboardTracking(False)
        self.selectionSpinBox.setSingleStep(1)
        self.selectionSpinBox.setMinimum(0)
        self.selectionSpinBox.setMaximum(2147483647)
        self.selectionSpinBox.valueChanged.connect(self.changeSelection)
        self._on_selection_change(None)

        sld = QSlider(Qt.Horizontal)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(1)
        sld.setMaximum(40)
        sld.setSingleStep(1)
        sld.valueChanged[int].connect(lambda value=sld: self.changeSize(value))
        self.brushSizeSlider = sld
        self._on_brush_size_change(None)

        contig_cb = QCheckBox()
        contig_cb.setToolTip('contiguous editing')
        contig_cb.stateChanged.connect(
            lambda state=contig_cb: self.change_contig(state))
        self.contigCheckBox = contig_cb
        self._on_contig_change(None)

        ndim_cb = QCheckBox()
        ndim_cb.setToolTip('n-dimensional editing')
        ndim_cb.stateChanged.connect(
            lambda state=ndim_cb: self.change_ndim(state))
        self.ndimCheckBox = ndim_cb
        self._on_n_dim_change(None)

        self.panzoom_button = QtModeButton(layer, 'zoom', Mode.PAN_ZOOM,
                                           'Pan/zoom mode')
        self.pick_button = QtModeButton(layer, 'picker', Mode.PICKER,
                                        'Pick mode')
        self.paint_button = QtModeButton(layer, 'paint', Mode.PAINT,
                                         'Paint mode')
        self.fill_button = QtModeButton(layer, 'fill', Mode.FILL, 'Fill mode')

        self.button_group = QButtonGroup(self)
        self.button_group.addButton(self.panzoom_button)
        self.button_group.addButton(self.paint_button)
        self.button_group.addButton(self.pick_button)
        self.button_group.addButton(self.fill_button)
        self.panzoom_button.setChecked(True)
        self._on_editable_change(None)

        button_row = QHBoxLayout()
        button_row.addWidget(self.pick_button)
        button_row.addWidget(self.fill_button)
        button_row.addWidget(self.paint_button)
        button_row.addWidget(self.panzoom_button)
        button_row.addStretch(1)
        button_row.setSpacing(4)

        # grid_layout created in QtLayerControls
        # addWidget(widget, row, column, [row_span, column_span])
        self.grid_layout.addLayout(button_row, 0, 1, 1, 2)
        self.grid_layout.addWidget(self.colormapUpdate, 0, 0)
        self.grid_layout.addWidget(QLabel('label:'), 1, 0)
        self.grid_layout.addWidget(self.selectionSpinBox, 1, 2)
        self.grid_layout.addWidget(QtColorBox(layer), 1, 1)
        self.grid_layout.addWidget(QLabel('opacity:'), 2, 0)
        self.grid_layout.addWidget(self.opacitySilder, 2, 1, 1, 2)
        self.grid_layout.addWidget(QLabel('brush size:'), 3, 0)
        self.grid_layout.addWidget(self.brushSizeSlider, 3, 1, 1, 2)
        self.grid_layout.addWidget(QLabel('blending:'), 4, 0)
        self.grid_layout.addWidget(self.blendComboBox, 4, 1, 1, 2)
        self.grid_layout.addWidget(QLabel('contiguous:'), 5, 0)
        self.grid_layout.addWidget(self.contigCheckBox, 5, 1)
        self.grid_layout.addWidget(QLabel('n-dim:'), 6, 0)
        self.grid_layout.addWidget(self.ndimCheckBox, 6, 1)
        self.grid_layout.setRowStretch(7, 1)
        self.grid_layout.setColumnStretch(1, 1)
        self.grid_layout.setSpacing(4)
Exemplo n.º 16
0
    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.n_dimensional.connect(self._on_n_dim_change)
        self.layer.events.symbol.connect(self._on_symbol_change)
        self.layer.events.size.connect(self._on_size_change)
        self.layer.events.edge_color.connect(self._on_edge_color_change)
        self.layer.events.face_color.connect(self._on_face_color_change)

        sld = QSlider(Qt.Horizontal, self)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setFixedWidth(110)
        sld.setMinimum(1)
        sld.setMaximum(100)
        sld.setSingleStep(1)
        value = self.layer.size
        sld.setValue(int(value))
        sld.valueChanged[int].connect(lambda value=sld: self.changeSize(value))
        self.sizeSlider = sld
        row = self.grid_layout.rowCount()
        self.grid_layout.addWidget(QLabel('size:'), row, self.name_column)
        self.grid_layout.addWidget(sld, row, self.property_column)

        face_comboBox = QComboBox()
        colors = self.layer._colors
        for c in colors:
            face_comboBox.addItem(c)
        index = face_comboBox.findText(self.layer.face_color,
                                       Qt.MatchFixedString)
        face_comboBox.setCurrentIndex(index)
        face_comboBox.activated[str].connect(
            lambda text=face_comboBox: self.changeFaceColor(text))
        self.faceComboBox = face_comboBox
        row = self.grid_layout.rowCount()
        self.grid_layout.addWidget(QLabel('face_color:'), row,
                                   self.name_column)
        self.grid_layout.addWidget(face_comboBox, row, self.property_column)

        edge_comboBox = QComboBox()
        colors = self.layer._colors
        for c in colors:
            edge_comboBox.addItem(c)
        index = edge_comboBox.findText(self.layer.edge_color,
                                       Qt.MatchFixedString)
        edge_comboBox.setCurrentIndex(index)
        edge_comboBox.activated[str].connect(
            lambda text=edge_comboBox: self.changeEdgeColor(text))
        self.edgeComboBox = edge_comboBox
        row = self.grid_layout.rowCount()
        self.grid_layout.addWidget(QLabel('edge_color:'), row,
                                   self.name_column)
        self.grid_layout.addWidget(edge_comboBox, row, self.property_column)

        symbol_comboBox = QComboBox()
        for s in Symbol:
            symbol_comboBox.addItem(str(s))
        index = symbol_comboBox.findText(self.layer.symbol,
                                         Qt.MatchFixedString)
        symbol_comboBox.setCurrentIndex(index)
        symbol_comboBox.activated[str].connect(
            lambda text=symbol_comboBox: self.changeSymbol(text))
        self.symbolComboBox = symbol_comboBox
        row = self.grid_layout.rowCount()
        self.grid_layout.addWidget(QLabel('symbol:'), row, self.name_column)
        self.grid_layout.addWidget(symbol_comboBox, row, self.property_column)

        ndim_cb = QCheckBox()
        ndim_cb.setToolTip('N-dimensional points')
        ndim_cb.setChecked(self.layer.n_dimensional)
        ndim_cb.stateChanged.connect(
            lambda state=ndim_cb: self.change_ndim(state))
        self.ndimCheckBox = ndim_cb
        row = self.grid_layout.rowCount()
        self.grid_layout.addWidget(QLabel('n-dim:'), row, self.name_column)
        self.grid_layout.addWidget(ndim_cb, row, self.property_column)

        self.setExpanded(False)
Exemplo n.º 17
0
class ColorbarEditor(EasyDialog):
    NAME = _("Colorbar editor")
    HELP_BODY = _("Click a triangle to change its color. <br>"
    "Drag triangles to move. <br>"
    "Click in an empty area to add a new color. <br>"
    "Right click a triangle to remove. <br>"
    "Right click axis or region, click View All, to zoom. <br>"
    "Mouse wheel zoom in/out when cursor on axis or region. <br>"
    "After zoom out, drag the region to move along the axis. <br>"
    "Right click the colorbar to select different colormap. <br>"
    "One of the four bars can be enabled by set Orientation. <br>"
    "The bar widgets can be resized by the move the splitter. <br>")

    def __init__(self, parent=None):
        EasyDialog.__init__(self, parent=parent, set_tree=True, set_db=True)

        self.dob = None
        self.clip_min = 0
        self.clip_max = 1
        self.setup_page()

    def setup_page(self):
        vbox = QVBoxLayout()
        btnWidget = QWidget(self)
        btnWidget.setLayout(vbox)

        text = _("Object")
        geom = ['Point', 'Line', 'Tsurface', 'Gsurface', 'Cube']
        self.grabob = self.create_grabob(text, geom=geom)
        vbox.addWidget(self.grabob)

        text = _("Property")
        self.prop = self.create_combobox(text)

        btn_load_property = QPushButton(_('Load'))
        btn_load_property.clicked.connect(self.load_property)
        hbox = QHBoxLayout()
        hbox.addWidget(self.prop)
        hbox.addWidget(btn_load_property)
        vbox.addLayout(hbox)

        lbl_orientation = QLabel(_('Orientation'))
        rb_top = QRadioButton('Top')
        rb_bottom = QRadioButton('Bottom')
        rb_left = QRadioButton('Left')
        rb_right = QRadioButton('Right')
        hbox = QHBoxLayout()
        hbox.addWidget(lbl_orientation)
        hbox.addWidget(rb_top)
        hbox.addWidget(rb_bottom)
        hbox.addWidget(rb_left)
        hbox.addWidget(rb_right)
        vbox.addLayout(hbox)

        lbl_clip_min = QLabel(_('Clip minimum'))
        lbl_clip_max = QLabel(_('Clip maximum'))
        self.le_clip_min = QLineEdit('0')
        self.le_clip_max = QLineEdit('1')
        hbox = QHBoxLayout()
        hbox.addWidget(lbl_clip_min)
        hbox.addWidget(self.le_clip_min)
        hbox.addWidget(lbl_clip_max)
        hbox.addWidget(self.le_clip_max)
        vbox.addLayout(hbox)

        opacity = QLabel(_('Opacity'))
        self.opacity = QSlider(Qt.Horizontal)
        self.opacity.setTracking(False)
        self.opacity.setTickPosition(QSlider.TicksBelow)
        self.opacity.setSingleStep(1)
        self.opacity.setRange(0, 255)
        self.opacity.setValue(255)
        self.opacity.valueChanged.connect(self.opacity_changed)
        hbox = QHBoxLayout()
        hbox.addWidget(opacity)
        hbox.addWidget(self.opacity)
        vbox.addLayout(hbox)

        action = self.create_action()
        vbox.addWidget(action)

        hlut_right = HistogramLUTWidget(orientation='right',
                                        gradients=customGradients)
        hlut_left = HistogramLUTWidget(orientation='left',
                                       gradients=customGradients)
        hlut_bottom = HistogramLUTWidget(orientation='bottom',
                                         gradients=customGradients)
        hlut_top = HistogramLUTWidget(orientation='top',
                                      gradients=customGradients)
        lbl_hlut_help = QLabel("You can activate any one of the four.")

        split1 = QSplitter(Qt.Vertical)
        split1.addWidget(hlut_top)
        split1.addWidget(lbl_hlut_help)
        split1.addWidget(hlut_bottom)
        # split1.setStretchFactor(0, 0)
        # split1.setStretchFactor(1, 1)
        # split1.setStretchFactor(2, 0)
        # split1.setSizes([50, 400, 50])

        split2 = QSplitter(Qt.Horizontal)
        split2.addWidget(hlut_left)
        split2.addWidget(split1)
        split2.addWidget(hlut_right)

        split3 = QSplitter(Qt.Vertical)
        split3.addWidget(btnWidget)
        split3.addWidget(split2)
        self.layout.addWidget(split3)

        # self.le_clip_min.editingFinished.connect(self.clip_changed)
        # self.le_clip_max.editingFinished.connect(self.clip_changed)

        self.hlut_list = [hlut_top, hlut_bottom, hlut_left, hlut_right]

        rb_top.toggled.connect(lambda:self.set_orientation(rb_top))
        rb_bottom.toggled.connect(lambda:self.set_orientation(rb_bottom))
        rb_left.toggled.connect(lambda:self.set_orientation(rb_left))
        rb_right.toggled.connect(lambda:self.set_orientation(rb_right))
        rb_right.setChecked(True)

    def opacity_changed(self):
        """
        Potentially can use non-constant opacity e.g. user can define
        any opacity gradient, linear interpolate on the color gradient
        ticks and set Alpha in the RGBA.
        """
        opacity = self.opacity.value()
        gradient = self.hlut_active.gradient.saveState()
        set_gradient_alpha(gradient, opacity)
        prop_name = self.prop_name
        self.dob.set_gradient(prop_name, gradient)
        self.dob.make_colormap(prop_name)
        self.dob.update_plots_by_prop()

    def set_orientation(self, rb):
        if rb.isChecked():
            if rb.text() == "Top":
                index = 0
            elif rb.text() == "Bottom":
                index = 1
            elif rb.text() == "Left":
                index = 2
            elif rb.text() == "Right":
                index = 3
            else:
                raise ValueError("Unknown value")

            self.hlut_active = self.hlut_list[index]
            self.hlut_active.setEnabled(True)
            for i in range(len(self.hlut_list)):
                if i != index:
                    self.hlut_list[i].setEnabled(False)

            self.hlut_active.sigLevelChangeFinished.connect(self.level_changed)
            self.hlut_active.sigLevelChangeFinished.connect(self.apply)
            # self.hlut_active.sigLookupTableChanged.connect(self.apply)

            if self.dob is not None:
                self.load_hlut()

    def level_changed(self):
        """
        Level is changed in the hlut by mouse dragging, now sync textbox.
        """
        self.clip_min, self.clip_max = self.hlut_active.getLevels()
        self.le_clip_min.setText(str(self.clip_min))
        self.le_clip_max.setText(str(self.clip_max))

    def clip_changed(self):
        """
        Clip is changed in the textbox by user typing, now sync hlut.
        """
        self.clip_min = float(self.le_clip_min.text())
        self.clip_max = float(self.le_clip_max.text())
        self.hlut_active.setLevels(self.clip_min, self.clip_max)

    def apply(self):
        if self.dob is None:
            logger.warning('No data object is loaded yet')
            return
        self.clip_changed()
        prop_name = self.prop_name
        # save to dob for updating plots of the object
        clip = self.hlut_active.getLevels()
        self.dob.set_clip(prop_name, clip)
        # save the colorbar/gradient as a dictionary
        gradient = self.hlut_active.gradient.saveState()
        opacity = self.opacity.value()
        set_gradient_alpha(gradient, opacity)
        self.dob.set_gradient(prop_name, gradient)
        self.dob.make_colormap(prop_name)
        self.dob.update_plots_by_prop()

        # TODO handle points multiple properties

    def grab_object_rc(self):
        """ Used when dialog is brought up by right click in tree. """
        geom = ['Point', 'Line', 'Tsurface', 'Gsurface', 'Cube']
        self.dob = self.treebase.grab_object(geom)
        self.grabob.lineedit.edit.setText(self.dob.name)
        self.propList = list(self.dob.prop.keys())
        self.prop.combobox.clear()
        self.prop.combobox.addItems(self.propList)
        self.grab_property()

    def load_object(self):
        self.dob = self.object  # from EasyDialog grab_object
        self.propList = list(self.dob.prop.keys())
        self.prop.combobox.clear()
        self.prop.combobox.addItems(self.propList)
        self.grab_property()

    def grab_property(self):
        prop_name = self.dob.current_property
        index = self.propList.index(prop_name)
        self.prop.combobox.setCurrentIndex(index)

    def load_property(self):
        """
        """
        object_name = self.grabob.lineedit.edit.text()
        self.prop_name = self.prop.combobox.currentText()
        self.dob = self.database[object_name]
        self.load_hlut()

    def load_hlut(self):
        prop_name = self.prop_name
        cg = self.dob.prop[prop_name]['colorGradient']
        if cg is not None:
            self.hlut_active.gradient.restoreState(cg)

        self.clip_min, self.clip_max = self.dob.prop[prop_name]['colorClip']
        self.hlut_active.setLevels(self.clip_min, self.clip_max)

        # Assume constant alpha, so use the first value
        alpha = cg['ticks'][0][1][3]
        self.opacity.setValue(alpha)
Exemplo n.º 18
0
    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.mode.connect(self.set_mode)
        self.layer.events.n_dimensional.connect(self._on_n_dim_change)
        self.layer.events.symbol.connect(self._on_symbol_change)
        self.layer.events.size.connect(self._on_size_change)
        self.layer.events.edge_color.connect(self._on_edge_color_change)
        self.layer.events.face_color.connect(self._on_face_color_change)
        self.layer.events.editable.connect(self._on_editable_change)

        sld = QSlider(Qt.Horizontal)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(1)
        sld.setMaximum(100)
        sld.setSingleStep(1)
        value = self.layer.size
        sld.setValue(int(value))
        sld.valueChanged[int].connect(lambda value=sld: self.changeSize(value))
        self.sizeSlider = sld

        face_comboBox = QComboBox()
        colors = self.layer._colors
        for c in colors:
            face_comboBox.addItem(c)
        face_comboBox.activated[str].connect(
            lambda text=face_comboBox: self.changeFaceColor(text))
        self.faceComboBox = face_comboBox
        self.faceColorSwatch = QFrame()
        self.faceColorSwatch.setObjectName('swatch')
        self.faceColorSwatch.setToolTip('Face color swatch')
        self._on_face_color_change(None)

        edge_comboBox = QComboBox()
        colors = self.layer._colors
        for c in colors:
            edge_comboBox.addItem(c)
        edge_comboBox.activated[str].connect(
            lambda text=edge_comboBox: self.changeEdgeColor(text))
        self.edgeComboBox = edge_comboBox
        self.edgeColorSwatch = QFrame()
        self.edgeColorSwatch.setObjectName('swatch')
        self.edgeColorSwatch.setToolTip('Edge color swatch')
        self._on_edge_color_change(None)

        symbol_comboBox = QComboBox()
        for s in Symbol:
            symbol_comboBox.addItem(str(s))
        index = symbol_comboBox.findText(self.layer.symbol,
                                         Qt.MatchFixedString)
        symbol_comboBox.setCurrentIndex(index)
        symbol_comboBox.activated[str].connect(
            lambda text=symbol_comboBox: self.changeSymbol(text))
        self.symbolComboBox = symbol_comboBox

        ndim_cb = QCheckBox()
        ndim_cb.setToolTip('N-dimensional points')
        ndim_cb.setChecked(self.layer.n_dimensional)
        ndim_cb.stateChanged.connect(
            lambda state=ndim_cb: self.change_ndim(state))
        self.ndimCheckBox = ndim_cb

        self.select_button = QtSelectButton(layer)
        self.addition_button = QtAdditionButton(layer)
        self.panzoom_button = QtPanZoomButton(layer)
        self.delete_button = QtDeletePointsButton(layer)

        self.button_group = QButtonGroup(self)
        self.button_group.addButton(self.select_button)
        self.button_group.addButton(self.addition_button)
        self.button_group.addButton(self.panzoom_button)

        # grid_layout created in QtLayerControls
        # addWidget(widget, row, column, [row_span, column_span])
        self.grid_layout.addWidget(self.panzoom_button, 0, 6)
        self.grid_layout.addWidget(self.select_button, 0, 5)
        self.grid_layout.addWidget(self.addition_button, 0, 4)
        self.grid_layout.addWidget(self.delete_button, 0, 3)
        self.grid_layout.addWidget(QLabel('opacity:'), 1, 0, 1, 3)
        self.grid_layout.addWidget(self.opacitySilder, 1, 3, 1, 4)
        self.grid_layout.addWidget(QLabel('point size:'), 2, 0, 1, 3)
        self.grid_layout.addWidget(self.sizeSlider, 2, 3, 1, 4)
        self.grid_layout.addWidget(QLabel('blending:'), 3, 0, 1, 3)
        self.grid_layout.addWidget(self.blendComboBox, 3, 3, 1, 4)
        self.grid_layout.addWidget(QLabel('symbol:'), 4, 0, 1, 3)
        self.grid_layout.addWidget(self.symbolComboBox, 4, 3, 1, 4)
        self.grid_layout.addWidget(QLabel('face color:'), 5, 0, 1, 3)
        self.grid_layout.addWidget(self.faceComboBox, 5, 3, 1, 3)
        self.grid_layout.addWidget(self.faceColorSwatch, 5, 6)
        self.grid_layout.addWidget(QLabel('edge color:'), 6, 0, 1, 3)
        self.grid_layout.addWidget(self.edgeComboBox, 6, 3, 1, 3)
        self.grid_layout.addWidget(self.edgeColorSwatch, 6, 6)
        self.grid_layout.addWidget(QLabel('n-dim:'), 7, 0, 1, 3)
        self.grid_layout.addWidget(self.ndimCheckBox, 7, 3)
        self.grid_layout.setRowStretch(8, 1)
        self.grid_layout.setVerticalSpacing(4)
Exemplo n.º 19
0
class Arboretum(QWidget):
    """ Arboretum

    A track visualization and lineage tree plotter integration for Napari.

    """
    def __init__(self, *args, **kwargs):

        super(Arboretum, self).__init__(*args, **kwargs)

        layout = QVBoxLayout()

        # add some buttons
        self.load_button = QPushButton('Load...', self)
        self.config_button = QPushButton('Configure...', self)
        self.localize_button = QPushButton('Localize', self)
        self.track_button = QPushButton('Track', self)
        self.save_button = QPushButton('Save...', self)

        # checkboxes
        self.optimize_checkbox = QCheckBox()
        self.optimize_checkbox.setChecked(True)
        # self.use_states_checkbox = QCheckBox()
        # self.use_states_checkbox.setChecked(True)

        # combo boxes
        self.tracking_mode_combobox = QComboBox()
        for mode in BayesianUpdates:
            self.tracking_mode_combobox.addItem(mode.name.lower())
        default_mode = BayesianUpdates.EXACT
        self.tracking_mode_combobox.setCurrentIndex(default_mode.value)

        # # sliders
        self.search_radius_slider = QSlider(Qt.Horizontal)
        self.search_radius_slider.setFocusPolicy(Qt.NoFocus)
        self.search_radius_slider.setMinimum(1)
        self.search_radius_slider.setMaximum(300)
        self.search_radius_slider.setSingleStep(1)
        # self.search_radius_slider.setEnabled(False)

        # dynamic labels
        self.config_filename_label = QLabel()
        self.localizations_label = QLabel()
        self.tracks_label = QLabel()
        self.status_label = QLabel()
        self.search_radius_label = QLabel()
        self.search_radius_label.setAlignment(Qt.AlignRight)

        # load/save buttons
        io_panel = QWidget()
        io_layout = QHBoxLayout()
        io_layout.addWidget(self.load_button)
        io_layout.addWidget(self.save_button)
        io_panel.setLayout(io_layout)
        io_panel.setMaximumWidth(GUI_MAXIMUM_WIDTH)
        layout.addWidget(io_panel)

        # tracking panel
        tracking_panel = QGroupBox('tracking')
        tracking_layout = QGridLayout()
        tracking_layout.addWidget(QLabel('method: '), 0, 0)
        tracking_layout.addWidget(self.tracking_mode_combobox, 0, 1)
        tracking_layout.addWidget(self.search_radius_label, 1, 0)
        tracking_layout.addWidget(self.search_radius_slider, 1, 1)
        tracking_layout.addWidget(QLabel('optimize: '), 2, 0)
        tracking_layout.addWidget(self.optimize_checkbox, 2, 1)
        tracking_layout.addWidget(self.config_button, 3, 0)
        tracking_layout.addWidget(self.config_filename_label, 3, 1)
        tracking_layout.addWidget(self.localize_button, 4, 0)
        tracking_layout.addWidget(self.localizations_label, 4, 1)
        tracking_layout.addWidget(self.track_button, 5, 0)
        tracking_layout.addWidget(self.tracks_label, 5, 1)
        tracking_layout.setColumnMinimumWidth(1, 150)
        tracking_layout.setSpacing(4)
        tracking_panel.setMaximumWidth(GUI_MAXIMUM_WIDTH)
        tracking_panel.setLayout(tracking_layout)
        layout.addWidget(tracking_panel)

        # status panel
        status_panel = QGroupBox('status')
        status_layout = QHBoxLayout()
        status_layout.addWidget(self.status_label)
        status_panel.setMaximumWidth(GUI_MAXIMUM_WIDTH)
        status_panel.setLayout(status_layout)
        layout.addWidget(status_panel)

        # set the layout
        layout.setAlignment(Qt.AlignTop)
        layout.setSpacing(4)

        self.setLayout(layout)
        self.setMaximumHeight(GUI_MAXIMUM_HEIGHT)
        self.setMaximumWidth(GUI_MAXIMUM_WIDTH)

        # callbacks
        self.load_button.clicked.connect(self.load_data)
        self.save_button.clicked.connect(self.export_data)
        self.config_button.clicked.connect(self.load_config)
        self.tracking_mode_combobox.currentTextChanged.connect(
            self._on_mode_change)
        self.search_radius_slider.valueChanged.connect(self._on_radius_change)

        self._tracker_state = None

        self._segmentation = None
        self._localizations = None
        self._tracks = None
        self._btrack_cfg = None
        self._active_layer = None

        # TODO(arl): this is the working filename for the dataset
        self.filename = None
        self._search_radius = None

        self._on_mode_change()
        self.search_radius_slider.setValue(100)

    def load_data(self):
        """ load data in hdf or json format from btrack """
        filename = QFileDialog.getOpenFileName(self, 'Open tracking data',
                                               DEFAULT_PATH,
                                               'Tracking files (*.hdf5 *.h5)')
        # only load file if we actually chose one
        if filename[0]:
            self.filename = filename[0]
        else:
            self.filename = None

    def load_config(self):
        """ load a btrack configuration file """
        filename = QFileDialog.getOpenFileName(self, 'Open tracking config',
                                               DEFAULT_PATH,
                                               'Tracking files (*.json)')
        # only load file if we actually chose one
        if filename[0]:
            self.btrack_cfg = utils._get_btrack_cfg(filename=filename[0])
        else:
            self.btrack_cfg = None

    def export_data(self):
        """ export track data """
        export_fn = os.path.join(DEFAULT_PATH, 'tracks.h5')
        filename = QFileDialog.getSaveFileName(self, 'Export tracking data',
                                               export_fn,
                                               'Tracking files (*.h5, *.csv)')
        # only export file if we actually chose one
        if filename[0]:
            filename, ext = os.path.splitext(filename[0])
            if ext == '.h5':
                utils.export_hdf(f'{filename}.h5', self.segmentation,
                                 self.tracker_state)
            elif ext == '.csv':
                btrack.dataio.export_CSV(f'{filename}.csv', self.tracker_state)

    @property
    def ndim(self):
        return self.segmentation.ndim

    @property
    def tracker_state(self) -> TrackerFrozenState:
        return self._tracker_state

    @tracker_state.setter
    def tracker_state(self, state: TrackerFrozenState):
        self._tracker_state = state
        self.tracks = [state.tracks]

    @property
    def segmentation(self) -> np.ndarray:
        return self._segmentation

    @segmentation.setter
    def segmentation(self, segmentation: Union[np.ndarray, Labels]):
        if segmentation is None:
            self._segmentation = None
            return
        elif isinstance(segmentation, np.ndarray):
            self._segmentation = segmentation
        else:
            # assume this is a napari layer
            self._segmentation = segmentation.data

        # TODO(arl): check that we deal with multidimensional data correctly
        assert (self._segmentation.ndim < 5)

    @property
    def tracks(self) -> list:
        return self._tracks

    @tracks.setter
    def tracks(self, tracks):
        self._tracks = tracks

        n_tracks = sum([len(t) for t in tracks])
        n_tracks_str = f'{n_tracks} tracks'
        self.tracks_label.setText(n_tracks_str)

    @property
    def localizations(self) -> np.ndarray:
        return self._localizations

    @localizations.setter
    def localizations(self, localizations: np.ndarray):
        self._localizations = localizations
        n_localizations_str = f'{localizations.shape[0]} objects'
        self.localizations_label.setText(n_localizations_str)

    @property
    def btrack_cfg(self) -> dict:
        return self._btrack_cfg

    @btrack_cfg.setter
    def btrack_cfg(self, cfg: dict):
        self._btrack_cfg = cfg
        truncate_fn = lambda f: f'...{f[-20:]}'
        self.config_filename_label.setText(truncate_fn(cfg['Filename']))

    @property
    def volume(self) -> tuple:
        """ get the volume to use for tracking """
        if self.segmentation is None:
            return ((0, 1200), (0, 1600), (-1e5, 1e5))
        else:
            volume = []
            # assumes time is the first dimension
            for dim in self.segmentation.shape[-2:]:
                volume.append((0, dim))
            #
            # if len(volume) == 2:
            volume.append((-1e5, 1e5))

            return tuple(volume)

    @property
    def active_layer(self) -> str:
        if self._active_layer is None: return ''
        return self._active_layer

    @active_layer.setter
    def active_layer(self, layer_name: str):
        self._active_layer = layer_name

    @property
    def tracking_mode(self) -> BayesianUpdates:
        return self._tracking_mode

    @tracking_mode.setter
    def tracking_mode(self, mode: BayesianUpdates):
        self._tracking_mode = mode

    @property
    def optimize(self) -> bool:
        return self.optimize_checkbox.isChecked()

    @property
    def search_radius(self) -> int:
        return self._search_radius
        # if self.tracking_mode == BayesianUpdates.APPROXIMATE:
        #     return self._search_radius
        # else:
        #     return None

    def _on_mode_change(self, event=None):
        mode = self.tracking_mode_combobox.currentText().upper()
        self.tracking_mode = BayesianUpdates[mode]
        # if self.tracking_mode == BayesianUpdates.APPROXIMATE:
        #     self.search_radius_slider.setEnabled(True)
        # else:
        #     self.search_radius_slider.setEnabled(False)

    def _on_radius_change(self, value):
        self.search_radius_label.setText(f'{value}')
        self._search_radius = value

    def get_tree(self, track_id: int):
        """ get a tree associated with this track """
        print(f'Selected track: {track_id}')

        if track_id:

            # test, plot the track we've selected
            selected_track = filter(lambda t: t.ID == track_id, self.tracks[0])
            track = list(selected_track)[0]

            # get the root node?
            root = [t for t in self.tracks[0] if t.ID == track.root]
            if root:
                root = root[0]
            else:
                return

            return (track_id, ) + tuple(_build_tree_graph(
                root, self.tracks[0]))

        return
Exemplo n.º 20
0
def create_wwwc_tab(apply_adjust):
    Conf = namedtuple("Conf", "min max step default")
    ww_conf = Conf(0, 2000, 1, 350)
    wc_conf = Conf(-2000, 2000, 1, 50)

    tab = QWidget()
    tab.layout = QFormLayout()

    # BUG: 只有一个负号的时候会变成0,应该保留负号
    ww_edit = QLineEdit()
    ww_edit.setValidator(QtGui.QIntValidator(ww_conf.min, ww_conf.max))
    ww_edit.setFixedWidth(50)
    wc_edit = QLineEdit()
    wc_edit.setValidator(QtGui.QIntValidator(wc_conf.min, wc_conf.max))
    wc_edit.setFixedWidth(50)

    ww_slider = QSlider(Qt.Horizontal)  # 窗宽滑动条
    ww_slider.setMinimum(ww_conf.min)
    ww_slider.setMaximum(ww_conf.max)
    ww_slider.setSingleStep(ww_conf.step)
    ww_slider.setValue(ww_conf.default)

    wc_slider = QSlider(Qt.Horizontal)  # 窗位滑动条
    wc_slider.setMinimum(wc_conf.min)
    wc_slider.setMaximum(wc_conf.max)
    wc_slider.setSingleStep(wc_conf.step)
    wc_slider.setValue(wc_conf.default)

    ww_label = QLabel()
    ww_label.setText("窗宽:  ")
    wc_label = QLabel()
    wc_label.setText("窗位:  ")

    ww_combo = QHBoxLayout()
    ww_combo.addWidget(ww_edit)
    ww_combo.addWidget(ww_slider)
    wc_combo = QHBoxLayout()
    wc_combo.addWidget(wc_edit)
    wc_combo.addWidget(wc_slider)

    tab.layout.addRow(ww_label, ww_combo)
    tab.layout.addRow(wc_label, wc_combo)

    tab.setLayout(tab.layout)

    def slider_change(slider, editor):
        def func():
            editor.setText(str(slider.value()))
            apply_adjust(
                functools.partial(wwwc, ww_slider.value(), wc_slider.value()))

        return func

    def edit_changed(editor, slider):
        def func():
            value = editor.text()
            if value == "" or value == "-":
                value = 0
            value = int(value)
            slider.setValue(value)

        return func

    ww_slider.valueChanged.connect(slider_change(ww_slider, ww_edit))
    wc_slider.valueChanged.connect(slider_change(wc_slider, wc_edit))
    ww_edit.textChanged.connect(edit_changed(ww_edit, ww_slider))
    # wc_edit.textChanged.connect(wc_edit_change)

    return tab, "WW/WC"
Exemplo n.º 21
0
    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.mode.connect(self._on_mode_change)
        self.layer.events.selected_label.connect(
            self._on_selected_label_change)
        self.layer.events.brush_size.connect(self._on_brush_size_change)
        self.layer.events.contiguous.connect(self._on_contiguous_change)
        self.layer.events.n_dimensional.connect(self._on_n_dimensional_change)
        self.layer.events.contour.connect(self._on_contour_change)
        self.layer.events.editable.connect(self._on_editable_change)
        self.layer.events.preserve_labels.connect(
            self._on_preserve_labels_change)
        self.layer.events.color_mode.connect(self._on_color_mode_change)

        # selection spinbox
        self.selectionSpinBox = QSpinBox()
        self.selectionSpinBox.setKeyboardTracking(False)
        self.selectionSpinBox.setSingleStep(1)
        self.selectionSpinBox.setMinimum(0)
        self.selectionSpinBox.setMaximum(1024)
        self.selectionSpinBox.valueChanged.connect(self.changeSelection)
        self.selectionSpinBox.setAlignment(Qt.AlignCenter)
        self._on_selected_label_change()

        sld = QSlider(Qt.Horizontal)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(1)
        sld.setMaximum(40)
        sld.setSingleStep(1)
        sld.valueChanged.connect(self.changeSize)
        self.brushSizeSlider = sld
        self._on_brush_size_change()

        contig_cb = QCheckBox()
        contig_cb.setToolTip(trans._('contiguous editing'))
        contig_cb.stateChanged.connect(self.change_contig)
        self.contigCheckBox = contig_cb
        self._on_contiguous_change()

        ndim_cb = QCheckBox()
        ndim_cb.setToolTip(trans._('edit all dimensions'))
        ndim_cb.stateChanged.connect(self.change_ndim)
        self.ndimCheckBox = ndim_cb
        self._on_n_dimensional_change()

        contour_sb = QSpinBox()
        contour_sb.setToolTip(trans._('display contours of labels'))
        contour_sb.valueChanged.connect(self.change_contour)
        self.contourSpinBox = contour_sb
        self.contourSpinBox.setKeyboardTracking(False)
        self.contourSpinBox.setSingleStep(1)
        self.contourSpinBox.setMinimum(0)
        self.contourSpinBox.setMaximum(2147483647)
        self.contourSpinBox.setAlignment(Qt.AlignCenter)
        self._on_contour_change()

        preserve_labels_cb = QCheckBox()
        preserve_labels_cb.setToolTip(
            trans._('preserve existing labels while painting'))
        preserve_labels_cb.stateChanged.connect(self.change_preserve_labels)
        self.preserveLabelsCheckBox = preserve_labels_cb
        self._on_preserve_labels_change()

        selectedColorCheckbox = QCheckBox()
        selectedColorCheckbox.setToolTip(
            trans._("Display only selected label"))
        selectedColorCheckbox.stateChanged.connect(self.toggle_selected_mode)
        self.selectedColorCheckbox = selectedColorCheckbox

        # shuffle colormap button
        self.colormapUpdate = QtModePushButton(
            None,
            'shuffle',
            slot=self.changeColor,
            tooltip=trans._('shuffle colors'),
        )

        self.panzoom_button = QtModeRadioButton(
            layer,
            'zoom',
            Mode.PAN_ZOOM,
            tooltip=trans._('Pan/zoom mode (Space)'),
            checked=True,
        )
        self.pick_button = QtModeRadioButton(layer,
                                             'picker',
                                             Mode.PICK,
                                             tooltip=trans._('Pick mode (L)'))
        self.paint_button = QtModeRadioButton(
            layer, 'paint', Mode.PAINT, tooltip=trans._('Paint mode (P)'))
        self.fill_button = QtModeRadioButton(
            layer,
            'fill',
            Mode.FILL,
            tooltip=trans._("Fill mode (F) \nToggle with {key}".format(
                key=KEY_SYMBOLS['Control'])),
        )
        self.erase_button = QtModeRadioButton(
            layer,
            'erase',
            Mode.ERASE,
            tooltip=trans._("Erase mode (E) \nToggle with {key}".format(
                key=KEY_SYMBOLS['Alt'])),
        )

        self.button_group = QButtonGroup(self)
        self.button_group.addButton(self.panzoom_button)
        self.button_group.addButton(self.paint_button)
        self.button_group.addButton(self.pick_button)
        self.button_group.addButton(self.fill_button)
        self.button_group.addButton(self.erase_button)
        self._on_editable_change()

        button_row = QHBoxLayout()
        button_row.addStretch(1)
        button_row.addWidget(self.colormapUpdate)
        button_row.addWidget(self.erase_button)
        button_row.addWidget(self.fill_button)
        button_row.addWidget(self.paint_button)
        button_row.addWidget(self.pick_button)
        button_row.addWidget(self.panzoom_button)
        button_row.setSpacing(4)
        button_row.setContentsMargins(0, 0, 0, 5)

        brush_shape_comboBox = QComboBox(self)
        for index, (data,
                    text) in enumerate(LABEL_BRUSH_SHAPE_TRANSLATIONS.items()):
            data = data.value
            brush_shape_comboBox.addItem(text, data)
            if self.layer.brush_shape == data:
                brush_shape_comboBox.setCurrentIndex(index)

        brush_shape_comboBox.activated[str].connect(self.change_brush_shape)
        self.brushShapeComboBox = brush_shape_comboBox
        self._on_brush_shape_change()

        color_mode_comboBox = QComboBox(self)
        for index, (data,
                    text) in enumerate(LABEL_COLOR_MODE_TRANSLATIONS.items()):
            data = data.value
            color_mode_comboBox.addItem(text, data)

            if self.layer.color_mode == data:
                color_mode_comboBox.setCurrentIndex(index)

        color_mode_comboBox.activated[str].connect(self.change_color_mode)
        self.colorModeComboBox = color_mode_comboBox
        self._on_color_mode_change()

        color_layout = QHBoxLayout()
        self.colorBox = QtColorBox(layer)
        color_layout.addWidget(self.colorBox)
        color_layout.addWidget(self.selectionSpinBox)

        # grid_layout created in QtLayerControls
        # addWidget(widget, row, column, [row_span, column_span])
        self.grid_layout.addLayout(button_row, 0, 0, 1, 4)
        self.grid_layout.addWidget(QLabel(trans._('label:')), 1, 0, 1, 1)
        self.grid_layout.addLayout(color_layout, 1, 1, 1, 3)
        self.grid_layout.addWidget(QLabel(trans._('opacity:')), 2, 0, 1, 1)
        self.grid_layout.addWidget(self.opacitySlider, 2, 1, 1, 3)
        self.grid_layout.addWidget(QLabel(trans._('brush size:')), 3, 0, 1, 1)
        self.grid_layout.addWidget(self.brushSizeSlider, 3, 1, 1, 3)
        self.grid_layout.addWidget(QLabel(trans._('brush shape:')), 4, 0, 1, 1)
        self.grid_layout.addWidget(self.brushShapeComboBox, 4, 1, 1, 3)
        self.grid_layout.addWidget(QLabel(trans._('blending:')), 5, 0, 1, 1)
        self.grid_layout.addWidget(self.blendComboBox, 5, 1, 1, 3)
        self.grid_layout.addWidget(QLabel(trans._('color mode:')), 6, 0, 1, 1)
        self.grid_layout.addWidget(self.colorModeComboBox, 6, 1, 1, 3)
        self.grid_layout.addWidget(QLabel(trans._('contour:')), 7, 0, 1, 1)
        self.grid_layout.addWidget(self.contourSpinBox, 7, 1, 1, 1)
        self.grid_layout.addWidget(QLabel(trans._('contiguous:')), 8, 0, 1, 1)
        self.grid_layout.addWidget(self.contigCheckBox, 8, 1, 1, 1)
        self.grid_layout.addWidget(QLabel(trans._('n-dim:')), 8, 2, 1, 1)
        self.grid_layout.addWidget(self.ndimCheckBox, 8, 3, 1, 1)
        self.grid_layout.addWidget(QLabel(trans._('preserve labels:')), 9, 0,
                                   1, 2)
        self.grid_layout.addWidget(self.preserveLabelsCheckBox, 9, 1, 1, 1)
        self.grid_layout.addWidget(QLabel(trans._('show selected:')), 9, 2, 1,
                                   1)
        self.grid_layout.addWidget(self.selectedColorCheckbox, 9, 3, 1, 1)
        self.grid_layout.setRowStretch(9, 1)
        self.grid_layout.setColumnStretch(1, 1)
        self.grid_layout.setSpacing(4)
Exemplo n.º 22
0
    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.colormap.connect(self._on_colormap_change)
        self.layer.events.selected_label.connect(self._on_selection_change)
        self.layer.events.brush_size.connect(self._on_brush_size_change)
        self.layer.events.contiguous.connect(self._on_contig_change)
        self.layer.events.n_dimensional.connect(self._on_n_dim_change)

        self.colormap_update = QPushButton('click')
        self.colormap_update.setObjectName('shuffle')
        self.colormap_update.clicked.connect(self.changeColor)
        self.colormap_update.setFixedWidth(112)
        self.colormap_update.setFixedHeight(25)
        shuffle_label = QLabel('shuffle colors:')
        shuffle_label.setObjectName('shuffle-label')
        row = self.grid_layout.rowCount()
        self.grid_layout.addWidget(shuffle_label, row, self.name_column)
        self.grid_layout.addWidget(
            self.colormap_update, row, self.property_column
        )

        # selection spinbox
        self.selection_spinbox = QSpinBox()
        self.selection_spinbox.setSingleStep(1)
        self.selection_spinbox.setMinimum(0)
        self.selection_spinbox.setMaximum(2147483647)
        self.selection_spinbox.setValue(self.layer.selected_label)
        self.selection_spinbox.setFixedWidth(75)
        self.selection_spinbox.valueChanged.connect(self.changeSelection)
        row = self.grid_layout.rowCount()
        self.grid_layout.addWidget(QLabel('label:'), row, self.name_column)
        self.grid_layout.addWidget(
            self.selection_spinbox, row, self.property_column
        )

        sld = QSlider(Qt.Horizontal, self)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setFixedWidth(110)
        sld.setMinimum(1)
        sld.setMaximum(40)
        sld.setSingleStep(1)
        value = self.layer.brush_size
        if isinstance(value, Iterable):
            if isinstance(value, list):
                value = np.asarray(value)
            value = value[:2].mean()
        sld.setValue(int(value))
        sld.valueChanged[int].connect(lambda value=sld: self.changeSize(value))
        self.brush_size_slider = sld
        row = self.grid_layout.rowCount()
        self.grid_layout.addWidget(
            QLabel('brush size:'), row, self.name_column
        )
        self.grid_layout.addWidget(sld, row, self.property_column)

        contig_cb = QCheckBox()
        contig_cb.setToolTip('contiguous editing')
        contig_cb.setChecked(self.layer.contiguous)
        contig_cb.stateChanged.connect(
            lambda state=contig_cb: self.change_contig(state)
        )
        self.contig_checkbox = contig_cb
        row = self.grid_layout.rowCount()
        self.grid_layout.addWidget(
            QLabel('contiguous:'), row, self.name_column
        )
        self.grid_layout.addWidget(contig_cb, row, self.property_column)

        ndim_cb = QCheckBox()
        ndim_cb.setToolTip('n-dimensional editing')
        ndim_cb.setChecked(self.layer.n_dimensional)
        ndim_cb.stateChanged.connect(
            lambda state=ndim_cb: self.change_ndim(state)
        )
        self.ndim_checkbox = ndim_cb
        row = self.grid_layout.rowCount()
        self.grid_layout.addWidget(QLabel('n-dim:'), row, self.name_column)
        self.grid_layout.addWidget(ndim_cb, row, self.property_column)

        self.setExpanded(False)
Exemplo n.º 23
0
class PyDMChartingDisplay(Display):
    def __init__(self, parent=None, args=[], macros=None):
        """
        Create all the widgets, including any child dialogs.

        Parameters
        ----------
        parent : QWidget
            The parent widget of the charting display
        args : list
            The command parameters
        macros : str
            Macros to modify the UI parameters at runtime
        """
        super(PyDMChartingDisplay, self).__init__(parent=parent,
                                                  args=args,
                                                  macros=macros)

        self.channel_map = dict()
        self.setWindowTitle("PyDM Charting Tool")

        self.main_layout = QVBoxLayout()
        self.body_layout = QVBoxLayout()

        self.pv_layout = QHBoxLayout()
        self.pv_name_line_edt = QLineEdit()
        self.pv_name_line_edt.setAcceptDrops(True)
        self.pv_name_line_edt.installEventFilter(self)

        self.pv_protocol_cmb = QComboBox()
        self.pv_protocol_cmb.addItems(["ca://", "archive://"])

        self.pv_connect_push_btn = QPushButton("Connect")
        self.pv_connect_push_btn.clicked.connect(self.add_curve)

        self.tab_panel = QTabWidget()
        self.tab_panel.setMaximumWidth(450)
        self.curve_settings_tab = QWidget()
        self.chart_settings_tab = QWidget()

        self.charting_layout = QHBoxLayout()
        self.chart = PyDMTimePlot(plot_by_timestamps=False, plot_display=self)
        self.chart.setPlotTitle("Time Plot")

        self.splitter = QSplitter()

        self.curve_settings_layout = QVBoxLayout()
        self.curve_settings_layout.setAlignment(Qt.AlignTop)
        self.curve_settings_layout.setSizeConstraint(QLayout.SetMinAndMaxSize)
        self.curve_settings_layout.setSpacing(5)

        self.crosshair_settings_layout = QVBoxLayout()
        self.crosshair_settings_layout.setAlignment(Qt.AlignTop)
        self.crosshair_settings_layout.setSpacing(5)

        self.enable_crosshair_chk = QCheckBox("Enable Crosshair")
        self.cross_hair_coord_lbl = QLabel()

        self.curve_settings_inner_frame = QFrame()
        self.curve_settings_inner_frame.setLayout(self.curve_settings_layout)

        self.curve_settings_scroll = QScrollArea()
        self.curve_settings_scroll.setVerticalScrollBarPolicy(
            Qt.ScrollBarAsNeeded)
        self.curve_settings_scroll.setWidget(self.curve_settings_inner_frame)

        self.curves_tab_layout = QHBoxLayout()
        self.curves_tab_layout.addWidget(self.curve_settings_scroll)

        self.enable_crosshair_chk.setChecked(False)
        self.enable_crosshair_chk.clicked.connect(
            self.handle_enable_crosshair_checkbox_clicked)
        self.enable_crosshair_chk.clicked.emit(False)

        self.chart_settings_layout = QVBoxLayout()
        self.chart_settings_layout.setAlignment(Qt.AlignTop)

        self.chart_layout = QVBoxLayout()
        self.chart_panel = QWidget()

        self.chart_control_layout = QHBoxLayout()
        self.chart_control_layout.setAlignment(Qt.AlignHCenter)
        self.chart_control_layout.setSpacing(10)

        self.view_all_btn = QPushButton("View All")
        self.view_all_btn.clicked.connect(self.handle_view_all_button_clicked)
        self.view_all_btn.setEnabled(False)

        self.auto_scale_btn = QPushButton("Auto Scale")
        self.auto_scale_btn.clicked.connect(self.handle_auto_scale_btn_clicked)
        self.auto_scale_btn.setEnabled(False)

        self.reset_chart_btn = QPushButton("Reset")
        self.reset_chart_btn.clicked.connect(
            self.handle_reset_chart_btn_clicked)
        self.reset_chart_btn.setEnabled(False)

        self.resume_chart_text = "Resume"
        self.pause_chart_text = "Pause"
        self.pause_chart_btn = QPushButton(self.pause_chart_text)
        self.pause_chart_btn.clicked.connect(
            self.handle_pause_chart_btn_clicked)

        self.title_settings_layout = QVBoxLayout()
        self.title_settings_layout.setSpacing(10)

        self.title_settings_grpbx = QGroupBox()
        self.title_settings_grpbx.setFixedHeight(150)

        self.import_data_btn = QPushButton("Import Data...")
        self.import_data_btn.clicked.connect(
            self.handle_import_data_btn_clicked)

        self.export_data_btn = QPushButton("Export Data...")
        self.export_data_btn.clicked.connect(
            self.handle_export_data_btn_clicked)

        self.chart_title_lbl = QLabel(text="Chart Title")
        self.chart_title_line_edt = QLineEdit()
        self.chart_title_line_edt.setText(self.chart.getPlotTitle())
        self.chart_title_line_edt.textChanged.connect(
            self.handle_title_text_changed)

        self.chart_change_axis_settings_btn = QPushButton(
            text="Change Axis Settings...")
        self.chart_change_axis_settings_btn.clicked.connect(
            self.handle_change_axis_settings_clicked)

        self.update_datetime_timer = QTimer(self)
        self.update_datetime_timer.timeout.connect(
            self.handle_update_datetime_timer_timeout)

        self.chart_sync_mode_layout = QVBoxLayout()
        self.chart_sync_mode_layout.setSpacing(5)

        self.chart_sync_mode_grpbx = QGroupBox("Data Sampling Mode")
        self.chart_sync_mode_grpbx.setFixedHeight(80)

        self.chart_sync_mode_sync_radio = QRadioButton("Synchronous")
        self.chart_sync_mode_async_radio = QRadioButton("Asynchronous")
        self.chart_sync_mode_async_radio.setChecked(True)

        self.graph_drawing_settings_layout = QVBoxLayout()

        self.chart_redraw_rate_lbl = QLabel("Redraw Rate (Hz)")
        self.chart_redraw_rate_spin = QSpinBox()
        self.chart_redraw_rate_spin.setRange(MIN_REDRAW_RATE_HZ,
                                             MAX_REDRAW_RATE_HZ)
        self.chart_redraw_rate_spin.setValue(DEFAULT_REDRAW_RATE_HZ)
        self.chart_redraw_rate_spin.valueChanged.connect(
            self.handle_redraw_rate_changed)

        self.chart_data_sampling_rate_lbl = QLabel(
            "Asynchronous Data Sampling Rate (Hz)")
        self.chart_data_async_sampling_rate_spin = QSpinBox()
        self.chart_data_async_sampling_rate_spin.setRange(
            MIN_DATA_SAMPLING_RATE_HZ, MAX_DATA_SAMPLING_RATE_HZ)
        self.chart_data_async_sampling_rate_spin.setValue(
            DEFAULT_DATA_SAMPLING_RATE_HZ)
        self.chart_data_async_sampling_rate_spin.valueChanged.connect(
            self.handle_data_sampling_rate_changed)
        self.chart_data_sampling_rate_lbl.hide()
        self.chart_data_async_sampling_rate_spin.hide()

        self.chart_limit_time_span_layout = QHBoxLayout()
        self.chart_limit_time_span_layout.setSpacing(5)

        self.limit_time_plan_text = "Limit Time Span"
        self.chart_limit_time_span_chk = QCheckBox(self.limit_time_plan_text)
        self.chart_limit_time_span_chk.hide()
        self.chart_limit_time_span_lbl = QLabel("Hours : Minutes : Seconds")
        self.chart_limit_time_span_hours_line_edt = QLineEdit()
        self.chart_limit_time_span_minutes_line_edt = QLineEdit()
        self.chart_limit_time_span_seconds_line_edt = QLineEdit()
        self.chart_limit_time_span_activate_btn = QPushButton("Apply")
        self.chart_limit_time_span_activate_btn.setDisabled(True)

        self.chart_ring_buffer_size_lbl = QLabel("Ring Buffer Size")
        self.chart_ring_buffer_size_edt = QLineEdit()
        self.chart_ring_buffer_size_edt.installEventFilter(self)
        self.chart_ring_buffer_size_edt.textChanged.connect(
            self.handle_buffer_size_changed)
        self.chart_ring_buffer_size_edt.setText(str(DEFAULT_BUFFER_SIZE))

        self.show_legend_chk = QCheckBox("Show Legend")
        self.show_legend_chk.setChecked(self.chart.showLegend)
        self.show_legend_chk.clicked.connect(
            self.handle_show_legend_checkbox_clicked)

        self.graph_background_color_layout = QFormLayout()

        self.background_color_lbl = QLabel("Graph Background Color ")
        self.background_color_btn = QPushButton()
        self.background_color_btn.setStyleSheet(
            "background-color: " + self.chart.getBackgroundColor().name())
        self.background_color_btn.setContentsMargins(10, 0, 5, 5)
        self.background_color_btn.setMaximumWidth(20)
        self.background_color_btn.clicked.connect(
            self.handle_background_color_button_clicked)

        self.axis_settings_layout = QVBoxLayout()
        self.axis_settings_layout.setSpacing(5)

        self.show_x_grid_chk = QCheckBox("Show x Grid")
        self.show_x_grid_chk.setChecked(self.chart.showXGrid)
        self.show_x_grid_chk.clicked.connect(
            self.handle_show_x_grid_checkbox_clicked)

        self.show_y_grid_chk = QCheckBox("Show y Grid")
        self.show_y_grid_chk.setChecked(self.chart.showYGrid)
        self.show_y_grid_chk.clicked.connect(
            self.handle_show_y_grid_checkbox_clicked)

        self.axis_color_lbl = QLabel("Axis and Grid Color")
        self.axis_color_lbl.setEnabled(False)

        self.axis_color_btn = QPushButton()
        self.axis_color_btn.setStyleSheet("background-color: " +
                                          DEFAULT_CHART_AXIS_COLOR.name())
        self.axis_color_btn.setContentsMargins(10, 0, 5, 5)
        self.axis_color_btn.setMaximumWidth(20)
        self.axis_color_btn.clicked.connect(
            self.handle_axis_color_button_clicked)
        self.axis_color_btn.setEnabled(False)

        self.grid_opacity_lbl = QLabel("Grid Opacity")
        self.grid_opacity_lbl.setEnabled(False)

        self.grid_opacity_slr = QSlider(Qt.Horizontal)
        self.grid_opacity_slr.setFocusPolicy(Qt.StrongFocus)
        self.grid_opacity_slr.setRange(0, 10)
        self.grid_opacity_slr.setValue(5)
        self.grid_opacity_slr.setTickInterval(1)
        self.grid_opacity_slr.setSingleStep(1)
        self.grid_opacity_slr.setTickPosition(QSlider.TicksBelow)
        self.grid_opacity_slr.valueChanged.connect(
            self.handle_grid_opacity_slider_mouse_release)
        self.grid_opacity_slr.setEnabled(False)

        self.reset_chart_settings_btn = QPushButton("Reset Chart Settings")
        self.reset_chart_settings_btn.clicked.connect(
            self.handle_reset_chart_settings_btn_clicked)

        self.curve_checkbox_panel = QWidget()

        self.graph_drawing_settings_grpbx = QGroupBox()
        self.graph_drawing_settings_grpbx.setFixedHeight(270)

        self.axis_settings_grpbx = QGroupBox()
        self.axis_settings_grpbx.setFixedHeight(180)

        self.app = QApplication.instance()
        self.setup_ui()

        self.curve_settings_disp = None
        self.axis_settings_disp = None
        self.chart_data_export_disp = None
        self.chart_data_import_disp = None
        self.grid_alpha = 5
        self.time_span_limit_hours = None
        self.time_span_limit_minutes = None
        self.time_span_limit_seconds = None
        self.data_sampling_mode = ASYNC_DATA_SAMPLING

    def minimumSizeHint(self):
        """
        The minimum recommended size of the main window.
        """
        return QSize(1490, 800)

    def ui_filepath(self):
        """
        The path to the UI file created by Qt Designer, if applicable.
        """
        # No UI file is being used
        return None

    def ui_filename(self):
        """
        The name the UI file created by Qt Designer, if applicable.
        """
        # No UI file is being used
        return None

    def setup_ui(self):
        """
        Initialize the widgets and layouts.
        """
        self.setLayout(self.main_layout)

        self.pv_layout.addWidget(self.pv_protocol_cmb)
        self.pv_layout.addWidget(self.pv_name_line_edt)
        self.pv_layout.addWidget(self.pv_connect_push_btn)
        QTimer.singleShot(0, self.pv_name_line_edt.setFocus)

        self.curve_settings_tab.setLayout(self.curves_tab_layout)
        self.chart_settings_tab.setLayout(self.chart_settings_layout)
        self.setup_chart_settings_layout()

        self.tab_panel.addTab(self.curve_settings_tab, "Curves")
        self.tab_panel.addTab(self.chart_settings_tab, "Chart")
        self.tab_panel.hide()

        self.crosshair_settings_layout.addWidget(self.enable_crosshair_chk)
        self.crosshair_settings_layout.addWidget(self.cross_hair_coord_lbl)

        self.chart_control_layout.addWidget(self.auto_scale_btn)
        self.chart_control_layout.addWidget(self.view_all_btn)
        self.chart_control_layout.addWidget(self.reset_chart_btn)
        self.chart_control_layout.addWidget(self.pause_chart_btn)
        self.chart_control_layout.addLayout(self.crosshair_settings_layout)
        self.chart_control_layout.addWidget(self.import_data_btn)
        self.chart_control_layout.addWidget(self.export_data_btn)

        self.chart_control_layout.setStretch(4, 15)
        self.chart_control_layout.insertSpacing(5, 350)

        self.chart_layout.addWidget(self.chart)
        self.chart_layout.addLayout(self.chart_control_layout)

        self.chart_panel.setLayout(self.chart_layout)

        self.splitter.addWidget(self.chart_panel)
        self.splitter.addWidget(self.tab_panel)
        self.splitter.setStretchFactor(0, 0)
        self.splitter.setStretchFactor(1, 1)

        self.charting_layout.addWidget(self.splitter)

        self.body_layout.addLayout(self.pv_layout)
        self.body_layout.addLayout(self.charting_layout)
        self.body_layout.addLayout(self.chart_control_layout)
        self.main_layout.addLayout(self.body_layout)

        self.enable_chart_control_buttons(False)

    def setup_chart_settings_layout(self):
        self.chart_sync_mode_sync_radio.toggled.connect(
            partial(self.handle_sync_mode_radio_toggle,
                    self.chart_sync_mode_sync_radio))
        self.chart_sync_mode_async_radio.toggled.connect(
            partial(self.handle_sync_mode_radio_toggle,
                    self.chart_sync_mode_async_radio))

        self.title_settings_layout.addWidget(self.chart_title_lbl)
        self.title_settings_layout.addWidget(self.chart_title_line_edt)
        self.title_settings_layout.addWidget(self.show_legend_chk)
        self.title_settings_layout.addWidget(
            self.chart_change_axis_settings_btn)
        self.title_settings_grpbx.setLayout(self.title_settings_layout)
        self.chart_settings_layout.addWidget(self.title_settings_grpbx)

        self.chart_sync_mode_layout.addWidget(self.chart_sync_mode_sync_radio)
        self.chart_sync_mode_layout.addWidget(self.chart_sync_mode_async_radio)
        self.chart_sync_mode_grpbx.setLayout(self.chart_sync_mode_layout)
        self.chart_settings_layout.addWidget(self.chart_sync_mode_grpbx)

        self.chart_settings_layout.addWidget(self.chart_sync_mode_grpbx)

        self.chart_limit_time_span_layout.addWidget(
            self.chart_limit_time_span_lbl)
        self.chart_limit_time_span_layout.addWidget(
            self.chart_limit_time_span_hours_line_edt)

        self.chart_limit_time_span_layout.addWidget(
            self.chart_limit_time_span_minutes_line_edt)
        self.chart_limit_time_span_layout.addWidget(
            self.chart_limit_time_span_seconds_line_edt)
        self.chart_limit_time_span_layout.addWidget(
            self.chart_limit_time_span_activate_btn)

        self.chart_limit_time_span_lbl.hide()
        self.chart_limit_time_span_hours_line_edt.hide()
        self.chart_limit_time_span_minutes_line_edt.hide()
        self.chart_limit_time_span_seconds_line_edt.hide()
        self.chart_limit_time_span_activate_btn.hide()

        self.chart_limit_time_span_hours_line_edt.textChanged.connect(
            self.handle_time_span_edt_text_changed)
        self.chart_limit_time_span_minutes_line_edt.textChanged.connect(
            self.handle_time_span_edt_text_changed)
        self.chart_limit_time_span_seconds_line_edt.textChanged.connect(
            self.handle_time_span_edt_text_changed)

        self.chart_limit_time_span_chk.clicked.connect(
            self.handle_limit_time_span_checkbox_clicked)
        self.chart_limit_time_span_activate_btn.clicked.connect(
            self.handle_chart_limit_time_span_activate_btn_clicked)
        self.chart_limit_time_span_activate_btn.installEventFilter(self)

        self.graph_background_color_layout.addRow(self.background_color_lbl,
                                                  self.background_color_btn)

        self.graph_drawing_settings_layout.addLayout(
            self.graph_background_color_layout)
        self.graph_drawing_settings_layout.addWidget(
            self.chart_redraw_rate_lbl)
        self.graph_drawing_settings_layout.addWidget(
            self.chart_redraw_rate_spin)
        self.graph_drawing_settings_layout.addWidget(
            self.chart_data_sampling_rate_lbl)
        self.graph_drawing_settings_layout.addWidget(
            self.chart_data_async_sampling_rate_spin)
        self.graph_drawing_settings_layout.addWidget(
            self.chart_limit_time_span_chk)
        self.graph_drawing_settings_layout.addLayout(
            self.chart_limit_time_span_layout)
        self.graph_drawing_settings_layout.addWidget(
            self.chart_ring_buffer_size_lbl)
        self.graph_drawing_settings_layout.addWidget(
            self.chart_ring_buffer_size_edt)
        self.graph_drawing_settings_grpbx.setLayout(
            self.graph_drawing_settings_layout)

        self.axis_settings_layout.addWidget(self.show_x_grid_chk)
        self.axis_settings_layout.addWidget(self.show_y_grid_chk)
        self.axis_settings_layout.addWidget(self.axis_color_lbl)
        self.axis_settings_layout.addWidget(self.axis_color_btn)
        self.axis_settings_layout.addWidget(self.grid_opacity_lbl)
        self.axis_settings_layout.addWidget(self.grid_opacity_slr)
        self.axis_settings_grpbx.setLayout(self.axis_settings_layout)

        self.chart_settings_layout.addWidget(self.graph_drawing_settings_grpbx)
        self.chart_settings_layout.addWidget(self.axis_settings_grpbx)
        self.chart_settings_layout.addWidget(self.reset_chart_settings_btn)

        self.chart_sync_mode_async_radio.toggled.emit(True)
        self.update_datetime_timer.start(1000)

    def eventFilter(self, obj, event):
        """
        Handle key and mouse events for any applicable widget.

        Parameters
        ----------
        obj : QWidget
            The current widget that accepts the event
        event : QEvent
            The key or mouse event to handle

        Returns
        -------
            True if the event was handled successfully; False otherwise
        """
        if obj == self.pv_name_line_edt and event.type() == QEvent.KeyPress:
            if event.key() == Qt.Key_Enter or event.key() == Qt.Key_Return:
                self.add_curve()
                return True
        elif obj == self.chart_limit_time_span_activate_btn and event.type(
        ) == QEvent.KeyPress:
            if event.key() == Qt.Key_Enter or event.key() == Qt.Key_Return:
                self.handle_chart_limit_time_span_activate_btn_clicked()
                return True
        elif obj == self.chart_ring_buffer_size_edt:
            if event.type() == QEvent.KeyPress and (event.key() == Qt.Key_Enter or event.key() == Qt.Key_Return) or \
                    event.type() == QEvent.FocusOut:
                try:
                    buffer_size = int(self.chart_ring_buffer_size_edt.text())
                    if buffer_size < MINIMUM_BUFFER_SIZE:
                        self.chart_ring_buffer_size_edt.setText(
                            str(MINIMUM_BUFFER_SIZE))
                except ValueError:
                    display_message_box(QMessageBox.Critical, "Invalid Values",
                                        "Only integer values are accepted.")
                return True
        return super(PyDMChartingDisplay, self).eventFilter(obj, event)

    def add_curve(self):
        """
        Add a new curve to the chart.
        """
        pv_name = self._get_full_pv_name(self.pv_name_line_edt.text())
        color = random_color()
        for k, v in self.channel_map.items():
            if color == v.color:
                color = random_color()

        self.add_y_channel(pv_name=pv_name, curve_name=pv_name, color=color)

    def handle_enable_crosshair_checkbox_clicked(self, is_checked):
        self.chart.enableCrosshair(is_checked)
        self.cross_hair_coord_lbl.setVisible(is_checked)

    def add_y_channel(self,
                      pv_name,
                      curve_name,
                      color,
                      line_style=Qt.SolidLine,
                      line_width=2,
                      symbol=None,
                      symbol_size=None):
        if pv_name in self.channel_map:
            logger.error("'{0}' has already been added.".format(pv_name))
            return

        curve = self.chart.addYChannel(y_channel=pv_name,
                                       name=curve_name,
                                       color=color,
                                       lineStyle=line_style,
                                       lineWidth=line_width,
                                       symbol=symbol,
                                       symbolSize=symbol_size)
        self.channel_map[pv_name] = curve
        self.generate_pv_controls(pv_name, color)

        self.enable_chart_control_buttons()
        self.app.establish_widget_connections(self)

    def generate_pv_controls(self, pv_name, curve_color):
        """
        Generate a set of widgets to manage the appearance of a curve. The set of widgets includes:
            1. A checkbox which shows the curve on the chart if checked, and hide the curve if not checked
            2. Two buttons -- Modify... and Remove. Modify... will bring up the Curve Settings dialog. Remove will
               delete the curve from the chart
        This set of widgets will be hidden initially, until the first curve is plotted.

        Parameters
        ----------
        pv_name: str
            The name of the PV the current curve is being plotted for

        curve_color : QColor
            The color of the curve to paint for the checkbox label to help the user track the curve to the checkbox
        """
        checkbox = QCheckBox()
        checkbox.setObjectName(pv_name)

        palette = checkbox.palette()
        palette.setColor(QPalette.Active, QPalette.WindowText, curve_color)
        checkbox.setPalette(palette)

        display_name = pv_name.split("://")[1]
        if len(display_name) > MAX_DISPLAY_PV_NAME_LENGTH:
            # Only display max allowed number of characters of the PV Name
            display_name = display_name[:int(MAX_DISPLAY_PV_NAME_LENGTH / 2) - 1] + "..." + \
                           display_name[-int(MAX_DISPLAY_PV_NAME_LENGTH / 2) + 2:]

        checkbox.setText(display_name)

        data_text = QLabel()
        data_text.setObjectName(pv_name)
        data_text.setPalette(palette)

        checkbox.setChecked(True)
        checkbox.clicked.connect(
            partial(self.handle_curve_chkbox_toggled, checkbox))

        curve_btn_layout = QHBoxLayout()

        modify_curve_btn = QPushButton("Modify...")
        modify_curve_btn.setObjectName(pv_name)
        modify_curve_btn.setMaximumWidth(100)
        modify_curve_btn.clicked.connect(
            partial(self.display_curve_settings_dialog, pv_name))

        focus_curve_btn = QPushButton("Focus")
        focus_curve_btn.setObjectName(pv_name)
        focus_curve_btn.setMaximumWidth(100)
        focus_curve_btn.clicked.connect(partial(self.focus_curve, pv_name))

        annotate_curve_btn = QPushButton("Annotate...")
        annotate_curve_btn.setObjectName(pv_name)
        annotate_curve_btn.setMaximumWidth(100)
        annotate_curve_btn.clicked.connect(
            partial(self.annotate_curve, pv_name))

        remove_curve_btn = QPushButton("Remove")
        remove_curve_btn.setObjectName(pv_name)
        remove_curve_btn.setMaximumWidth(100)
        remove_curve_btn.clicked.connect(partial(self.remove_curve, pv_name))

        curve_btn_layout.addWidget(modify_curve_btn)
        curve_btn_layout.addWidget(focus_curve_btn)
        curve_btn_layout.addWidget(annotate_curve_btn)
        curve_btn_layout.addWidget(remove_curve_btn)

        individual_curve_layout = QVBoxLayout()
        individual_curve_layout.addWidget(checkbox)
        individual_curve_layout.addWidget(data_text)
        individual_curve_layout.addLayout(curve_btn_layout)

        size_policy = QSizePolicy()
        size_policy.setVerticalPolicy(QSizePolicy.Fixed)
        individual_curve_grpbx = QGroupBox()
        individual_curve_grpbx.setSizePolicy(size_policy)

        individual_curve_grpbx.setObjectName(pv_name)
        individual_curve_grpbx.setLayout(individual_curve_layout)

        self.curve_settings_layout.addWidget(individual_curve_grpbx)
        self.tab_panel.show()

    def handle_curve_chkbox_toggled(self, checkbox):
        """
        Handle a checkbox's checked and unchecked events.

        If a checkbox is checked, find the curve from the channel map. If found, re-draw the curve with its previous
        appearance settings.

        If a checkbox is unchecked, remove the curve from the chart, but keep the cached data in the channel map.

        Parameters
        ----------
        checkbox : QCheckBox
            The current checkbox being toggled
        """
        pv_name = self._get_full_pv_name(checkbox.text())

        if checkbox.isChecked():
            curve = self.channel_map.get(pv_name, None)
            if curve:
                self.chart.addLegendItem(curve, pv_name,
                                         self.show_legend_chk.isChecked())
                curve.show()
        else:
            curve = self.chart.findCurve(pv_name)
            if curve:
                curve.hide()
                self.chart.removeLegendItem(pv_name)

    def display_curve_settings_dialog(self, pv_name):
        """
        Bring up the Curve Settings dialog to modify the appearance of a curve.

        Parameters
        ----------
        pv_name : str
            The name of the PV the curve is being plotted for

        """
        self.curve_settings_disp = CurveSettingsDisplay(self, pv_name)
        self.curve_settings_disp.show()

    def focus_curve(self, pv_name):
        curve = self.chart.findCurve(pv_name)
        if curve:
            self.chart.plotItem.setYRange(curve.minY, curve.maxY, padding=0)

    def annotate_curve(self, pv_name):
        curve = self.chart.findCurve(pv_name)
        if curve:
            annot = TextItem(
                html=
                '<div style="text-align: center"><span style="color: #FFF;">This is the'
                '</span><br><span style="color: #FF0; font-size: 16pt;">PEAK</span></div>',
                anchor=(-0.3, 0.5),
                border='w',
                fill=(0, 0, 255, 100))
            annot = TextItem("test", anchor=(-0.3, 0.5))
            self.chart.annotateCurve(curve, annot)

    def remove_curve(self, pv_name):
        """
        Remove a curve from the chart permanently. This will also clear the channel map cache from retaining the
        removed curve's appearance settings.

        Parameters
        ----------
        pv_name : str
            The name of the PV the curve is being plotted for
        """
        curve = self.chart.findCurve(pv_name)
        if curve:
            self.chart.removeYChannel(curve)
            del self.channel_map[pv_name]
            self.chart.removeLegendItem(pv_name)

            widgets = self.findChildren(
                (QCheckBox, QLabel, QPushButton, QGroupBox), pv_name)
            for w in widgets:
                w.deleteLater()

        if len(self.chart.getCurves()) < 1:
            self.enable_chart_control_buttons(False)
            self.show_legend_chk.setChecked(False)

    def handle_title_text_changed(self, new_text):
        self.chart.setPlotTitle(new_text)

    def handle_change_axis_settings_clicked(self):
        self.axis_settings_disp = AxisSettingsDisplay(self)
        self.axis_settings_disp.show()

    def handle_limit_time_span_checkbox_clicked(self, is_checked):
        self.chart_limit_time_span_lbl.setVisible(is_checked)
        self.chart_limit_time_span_hours_line_edt.setVisible(is_checked)
        self.chart_limit_time_span_minutes_line_edt.setVisible(is_checked)
        self.chart_limit_time_span_seconds_line_edt.setVisible(is_checked)
        self.chart_limit_time_span_activate_btn.setVisible(is_checked)

        self.chart_ring_buffer_size_lbl.setDisabled(is_checked)
        self.chart_ring_buffer_size_edt.setDisabled(is_checked)

        if not is_checked:
            self.chart_limit_time_span_chk.setText(self.limit_time_plan_text)

    def handle_time_span_edt_text_changed(self, new_text):
        try:
            self.time_span_limit_hours = int(
                self.chart_limit_time_span_hours_line_edt.text())
            self.time_span_limit_minutes = int(
                self.chart_limit_time_span_minutes_line_edt.text())
            self.time_span_limit_seconds = int(
                self.chart_limit_time_span_seconds_line_edt.text())
        except ValueError as e:
            self.time_span_limit_hours = None
            self.time_span_limit_minutes = None
            self.time_span_limit_seconds = None

        if self.time_span_limit_hours is not None and self.time_span_limit_minutes is not None and \
                self.time_span_limit_seconds is not None:
            self.chart_limit_time_span_activate_btn.setEnabled(True)
        else:
            self.chart_limit_time_span_activate_btn.setEnabled(False)

    def handle_chart_limit_time_span_activate_btn_clicked(self):
        if self.time_span_limit_hours is None or self.time_span_limit_minutes is None or \
                self.time_span_limit_seconds is None:
            display_message_box(
                QMessageBox.Critical, "Invalid Values",
                "Hours, minutes, and seconds expect only integer values.")
        else:
            timeout_milliseconds = (self.time_span_limit_hours * 3600 +
                                    self.time_span_limit_minutes * 60 +
                                    self.time_span_limit_seconds) * 1000
            self.chart.setTimeSpan(timeout_milliseconds / 1000.0)
            self.chart_ring_buffer_size_edt.setText(
                str(self.chart.getBufferSize()))

    def handle_buffer_size_changed(self, new_buffer_size):
        try:
            if new_buffer_size and int(new_buffer_size) > MINIMUM_BUFFER_SIZE:
                self.chart.setBufferSize(new_buffer_size)
        except ValueError:
            display_message_box(QMessageBox.Critical, "Invalid Values",
                                "Only integer values are accepted.")

    def handle_redraw_rate_changed(self, new_redraw_rate):
        self.chart.maxRedrawRate = new_redraw_rate

    def handle_data_sampling_rate_changed(self, new_data_sampling_rate):
        # The chart expects the value in milliseconds
        sampling_rate_seconds = 1 / new_data_sampling_rate
        self.chart.setUpdateInterval(sampling_rate_seconds)

    def handle_background_color_button_clicked(self):
        selected_color = QColorDialog.getColor()
        self.chart.setBackgroundColor(selected_color)
        self.background_color_btn.setStyleSheet("background-color: " +
                                                selected_color.name())

    def handle_axis_color_button_clicked(self):
        selected_color = QColorDialog.getColor()
        self.chart.setAxisColor(selected_color)
        self.axis_color_btn.setStyleSheet("background-color: " +
                                          selected_color.name())

    def handle_grid_opacity_slider_mouse_release(self):
        self.grid_alpha = float(self.grid_opacity_slr.value()) / 10.0
        self.chart.setShowXGrid(self.show_x_grid_chk.isChecked(),
                                self.grid_alpha)
        self.chart.setShowYGrid(self.show_y_grid_chk.isChecked(),
                                self.grid_alpha)

    def handle_show_x_grid_checkbox_clicked(self, is_checked):
        self.chart.setShowXGrid(is_checked, self.grid_alpha)

        self.axis_color_lbl.setEnabled(is_checked
                                       or self.show_y_grid_chk.isChecked())
        self.axis_color_btn.setEnabled(is_checked
                                       or self.show_y_grid_chk.isChecked())
        self.grid_opacity_lbl.setEnabled(is_checked
                                         or self.show_y_grid_chk.isChecked())
        self.grid_opacity_slr.setEnabled(is_checked
                                         or self.show_y_grid_chk.isChecked())

    def handle_show_y_grid_checkbox_clicked(self, is_checked):
        self.chart.setShowYGrid(is_checked, self.grid_alpha)

        self.axis_color_lbl.setEnabled(is_checked
                                       or self.show_x_grid_chk.isChecked())
        self.axis_color_btn.setEnabled(is_checked
                                       or self.show_x_grid_chk.isChecked())
        self.grid_opacity_lbl.setEnabled(is_checked
                                         or self.show_x_grid_chk.isChecked())
        self.grid_opacity_slr.setEnabled(is_checked
                                         or self.show_x_grid_chk.isChecked())

    def handle_show_legend_checkbox_clicked(self, is_checked):
        self.chart.setShowLegend(is_checked)

    def handle_export_data_btn_clicked(self):
        self.chart_data_export_disp = ChartDataExportDisplay(self)
        self.chart_data_export_disp.show()

    def handle_import_data_btn_clicked(self):
        open_file_info = QFileDialog.getOpenFileName(self,
                                                     caption="Save File",
                                                     filter="*." +
                                                     IMPORT_FILE_FORMAT)
        open_file_name = open_file_info[0]
        if open_file_name:
            importer = SettingsImporter(self)
            importer.import_settings(open_file_name)

    def handle_sync_mode_radio_toggle(self, radio_btn):
        if radio_btn.isChecked():
            if radio_btn.text() == "Synchronous":
                self.data_sampling_mode = SYNC_DATA_SAMPLING

                self.chart_data_sampling_rate_lbl.hide()
                self.chart_data_async_sampling_rate_spin.hide()

                self.chart.resetTimeSpan()
                self.chart_limit_time_span_chk.setChecked(False)
                self.chart_limit_time_span_chk.clicked.emit(False)
                self.chart_limit_time_span_chk.hide()
                self.graph_drawing_settings_grpbx.setFixedHeight(180)

                self.chart.setUpdatesAsynchronously(False)
            elif radio_btn.text() == "Asynchronous":
                self.data_sampling_mode = ASYNC_DATA_SAMPLING

                self.chart_data_sampling_rate_lbl.show()
                self.chart_data_async_sampling_rate_spin.show()
                self.chart_limit_time_span_chk.show()
                self.graph_drawing_settings_grpbx.setFixedHeight(270)

                self.chart.setUpdatesAsynchronously(True)
        self.app.establish_widget_connections(self)

    def handle_auto_scale_btn_clicked(self):
        self.chart.resetAutoRangeX()
        self.chart.resetAutoRangeY()

    def handle_view_all_button_clicked(self):
        self.chart.getViewBox().autoRange()

    def handle_pause_chart_btn_clicked(self):
        if self.chart.pausePlotting():
            self.pause_chart_btn.setText(self.pause_chart_text)
        else:
            self.pause_chart_btn.setText(self.resume_chart_text)

    def handle_reset_chart_btn_clicked(self):
        self.chart.getViewBox().setXRange(DEFAULT_X_MIN, 0)
        self.chart.resetAutoRangeY()

    @Slot()
    def handle_reset_chart_settings_btn_clicked(self):
        self.chart_ring_buffer_size_edt.setText(str(DEFAULT_BUFFER_SIZE))

        self.chart_redraw_rate_spin.setValue(DEFAULT_REDRAW_RATE_HZ)
        self.chart_data_async_sampling_rate_spin.setValue(
            DEFAULT_DATA_SAMPLING_RATE_HZ)
        self.chart_data_sampling_rate_lbl.hide()
        self.chart_data_async_sampling_rate_spin.hide()

        self.chart_sync_mode_async_radio.setChecked(True)
        self.chart_sync_mode_async_radio.toggled.emit(True)

        self.chart_limit_time_span_chk.setChecked(False)
        self.chart_limit_time_span_chk.setText(self.limit_time_plan_text)
        self.chart_limit_time_span_chk.clicked.emit(False)

        self.chart.setUpdatesAsynchronously(True)
        self.chart.resetTimeSpan()
        self.chart.resetUpdateInterval()
        self.chart.setBufferSize(DEFAULT_BUFFER_SIZE)

        self.chart.setBackgroundColor(DEFAULT_CHART_BACKGROUND_COLOR)
        self.background_color_btn.setStyleSheet(
            "background-color: " + DEFAULT_CHART_BACKGROUND_COLOR.name())

        self.chart.setAxisColor(DEFAULT_CHART_AXIS_COLOR)
        self.axis_color_btn.setStyleSheet("background-color: " +
                                          DEFAULT_CHART_AXIS_COLOR.name())

        self.grid_opacity_slr.setValue(5)

        self.show_x_grid_chk.setChecked(False)
        self.show_x_grid_chk.clicked.emit(False)

        self.show_y_grid_chk.setChecked(False)
        self.show_y_grid_chk.clicked.emit(False)

        self.show_legend_chk.setChecked(False)

        self.chart.setShowXGrid(False)
        self.chart.setShowYGrid(False)
        self.chart.setShowLegend(False)

    def enable_chart_control_buttons(self, enabled=True):
        self.auto_scale_btn.setEnabled(enabled)
        self.view_all_btn.setEnabled(enabled)
        self.reset_chart_btn.setEnabled(enabled)
        self.pause_chart_btn.setText(self.pause_chart_text)
        self.pause_chart_btn.setEnabled(enabled)
        self.export_data_btn.setEnabled(enabled)

    def _get_full_pv_name(self, pv_name):
        """
        Append the protocol to the PV Name.

        Parameters
        ----------
        pv_name : str
            The name of the PV the curve is being plotted for
        """
        if pv_name and "://" not in pv_name:
            pv_name = ''.join([self.pv_protocol_cmb.currentText(), pv_name])
        return pv_name

    def handle_update_datetime_timer_timeout(self):
        current_label = self.chart.getBottomAxisLabel()
        new_label = "Current Time: " + PyDMChartingDisplay.get_current_datetime(
        )

        if X_AXIS_LABEL_SEPARATOR in current_label:
            current_label = current_label[current_label.
                                          find(X_AXIS_LABEL_SEPARATOR) +
                                          len(X_AXIS_LABEL_SEPARATOR):]
            new_label += X_AXIS_LABEL_SEPARATOR + current_label

        self.chart.setLabel("bottom", text=new_label)

    def update_curve_data(self, curve):
        """
        Determine if the PV is active. If not, disable the related PV controls. If the PV is active, update the PV
        controls' states.

        Parameters
        ----------
        curve : PlotItem
           A PlotItem, i.e. a plot, to draw on the chart.
        """
        pv_name = curve.name()
        max_x = self.chart.getViewBox().viewRange()[1][0]
        max_y = self.chart.getViewBox().viewRange()[1][1]
        current_y = curve.data_buffer[1, -1]

        widgets = self.findChildren((QCheckBox, QLabel, QPushButton), pv_name)
        for w in widgets:
            if np.isnan(current_y):
                if isinstance(w, QCheckBox):
                    w.setChecked(False)
            else:
                if isinstance(w, QCheckBox) and not w.isEnabled():
                    w.setChecked(True)
                if isinstance(w, QLabel):
                    w.clear()
                    w.setText(
                        "(yMin = {0:.3f}, yMax = {1:.3f}) y = {2:.3f}".format(
                            max_x, max_y, current_y))
                    w.show()
            w.setEnabled(not np.isnan(current_y))

            if isinstance(w, QPushButton) and w.text() == "Remove":
                # Enable the Remove button to make removing inactive PVs possible anytime
                w.setEnabled(True)

    def show_mouse_coordinates(self, x, y):
        self.cross_hair_coord_lbl.clear()
        self.cross_hair_coord_lbl.setText("x = {0:.3f}, y = {1:.3f}".format(
            x, y))

    @staticmethod
    def get_current_datetime():
        current_date = datetime.datetime.now().strftime("%b %d, %Y")
        current_time = datetime.datetime.now().strftime("%H:%M:%S")
        current_datetime = current_time + ' (' + current_date + ')'

        return current_datetime

    @property
    def gridAlpha(self):
        return self.grid_alpha
Exemplo n.º 24
0
class QtTracksControls(QtLayerControls):
    """Qt view and controls for the Tracks layer.

    Parameters
    ----------
    layer : napari.layers.Tracks
        An instance of a Tracks layer.

    Attributes
    ----------
    grid_layout : qtpy.QtWidgets.QGridLayout
        Layout of Qt widget controls for the layer.
    layer : layers.Tracks
        An instance of a Tracks layer.

    """

    layer: 'napari.layers.Tracks'

    def __init__(self, layer):
        super().__init__(layer)

        # NOTE(arl): there are no events fired for changing checkboxes
        self.layer.events.tail_width.connect(self._on_tail_width_change)
        self.layer.events.tail_length.connect(self._on_tail_length_change)
        self.layer.events.head_length.connect(self._on_head_length_change)
        self.layer.events.properties.connect(self._on_properties_change)
        self.layer.events.colormap.connect(self._on_colormap_change)
        self.layer.events.color_by.connect(self._on_color_by_change)

        # combo box for track coloring, we can get these from the properties
        # keys
        self.color_by_combobox = QComboBox()
        self.color_by_combobox.addItems(self.layer.properties_to_color_by)

        self.colormap_combobox = QComboBox()
        for name, colormap in AVAILABLE_COLORMAPS.items():
            display_name = colormap._display_name
            self.colormap_combobox.addItem(display_name, name)

        # slider for track head length
        self.head_length_slider = QSlider(Qt.Horizontal)
        self.head_length_slider.setFocusPolicy(Qt.NoFocus)
        self.head_length_slider.setMinimum(0)
        self.head_length_slider.setMaximum(self.layer._max_length)
        self.head_length_slider.setSingleStep(1)

        # slider for track tail length
        self.tail_length_slider = QSlider(Qt.Horizontal)
        self.tail_length_slider.setFocusPolicy(Qt.NoFocus)
        self.tail_length_slider.setMinimum(1)
        self.tail_length_slider.setMaximum(self.layer._max_length)
        self.tail_length_slider.setSingleStep(1)

        # slider for track edge width
        self.tail_width_slider = QSlider(Qt.Horizontal)
        self.tail_width_slider.setFocusPolicy(Qt.NoFocus)
        self.tail_width_slider.setMinimum(1)
        self.tail_width_slider.setMaximum(int(2 * self.layer._max_width))
        self.tail_width_slider.setSingleStep(1)

        # checkboxes for display
        self.id_checkbox = QCheckBox()
        self.tail_checkbox = QCheckBox()
        self.tail_checkbox.setChecked(True)
        self.graph_checkbox = QCheckBox()
        self.graph_checkbox.setChecked(True)

        self.tail_width_slider.valueChanged.connect(self.change_tail_width)
        self.tail_length_slider.valueChanged.connect(self.change_tail_length)
        self.head_length_slider.valueChanged.connect(self.change_head_length)
        self.tail_checkbox.stateChanged.connect(self.change_display_tail)
        self.id_checkbox.stateChanged.connect(self.change_display_id)
        self.graph_checkbox.stateChanged.connect(self.change_display_graph)
        self.color_by_combobox.currentTextChanged.connect(self.change_color_by)
        self.colormap_combobox.currentTextChanged.connect(self.change_colormap)

        self.layout().addRow(trans._('color by:'), self.color_by_combobox)
        self.layout().addRow(trans._('colormap:'), self.colormap_combobox)
        self.layout().addRow(trans._('blending:'), self.blendComboBox)
        self.layout().addRow(trans._('opacity:'), self.opacitySlider)
        self.layout().addRow(trans._('tail width:'), self.tail_width_slider)
        self.layout().addRow(trans._('tail length:'), self.tail_length_slider)
        self.layout().addRow(trans._('head length:'), self.head_length_slider)
        self.layout().addRow(trans._('tail:'), self.tail_checkbox)
        self.layout().addRow(trans._('show ID:'), self.id_checkbox)
        self.layout().addRow(trans._('graph:'), self.graph_checkbox)

        self._on_tail_length_change()
        self._on_tail_width_change()
        self._on_colormap_change()
        self._on_color_by_change()

    def _on_tail_width_change(self):
        """Receive layer model track line width change event and update slider."""
        with self.layer.events.tail_width.blocker():
            value = int(2 * self.layer.tail_width)
            self.tail_width_slider.setValue(value)

    def _on_tail_length_change(self):
        """Receive layer model track line width change event and update slider."""
        with self.layer.events.tail_length.blocker():
            value = self.layer.tail_length
            self.tail_length_slider.setValue(value)

    def _on_head_length_change(self):
        """Receive layer model track line width change event and update slider."""
        with self.layer.events.head_length.blocker():
            value = self.layer.head_length
            self.head_length_slider.setValue(value)

    def _on_properties_change(self):
        """Change the properties that can be used to color the tracks."""
        with self.layer.events.properties.blocker():

            with qt_signals_blocked(self.color_by_combobox):
                self.color_by_combobox.clear()
            self.color_by_combobox.addItems(self.layer.properties_to_color_by)

    def _on_colormap_change(self):
        """Receive layer model colormap change event and update combobox."""
        with self.layer.events.colormap.blocker():
            self.colormap_combobox.setCurrentIndex(
                self.colormap_combobox.findData(self.layer.colormap))

    def _on_color_by_change(self):
        """Receive layer model color_by change event and update combobox."""
        with self.layer.events.color_by.blocker():
            color_by = self.layer.color_by

            idx = self.color_by_combobox.findText(color_by,
                                                  Qt.MatchFixedString)
            self.color_by_combobox.setCurrentIndex(idx)

    def change_tail_width(self, value):
        """Change track line width of shapes on the layer model.

        Parameters
        ----------
        value : float
            Line width of track tails.
        """
        self.layer.tail_width = float(value) / 2.0

    def change_tail_length(self, value):
        """Change edge line backward length of shapes on the layer model.

        Parameters
        ----------
        value : int
            Line length of track tails.
        """
        self.layer.tail_length = value

    def change_head_length(self, value):
        """Change edge line forward length of shapes on the layer model.

        Parameters
        ----------
        value : int
            Line length of track tails.
        """
        self.layer.head_length = value

    def change_display_tail(self, state):
        self.layer.display_tail = self.tail_checkbox.isChecked()

    def change_display_id(self, state):
        self.layer.display_id = self.id_checkbox.isChecked()

    def change_display_graph(self, state):
        self.layer.display_graph = self.graph_checkbox.isChecked()

    def change_color_by(self, value: str):
        self.layer.color_by = value

    def change_colormap(self, colormap: str):
        self.layer.colormap = self.colormap_combobox.currentData()
Exemplo n.º 25
0
    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.interpolation.connect(self._on_interpolation_change)
        self.layer.events.rendering.connect(self._on_rendering_change)
        self.layer.events.iso_threshold.connect(self._on_iso_threshold_change)
        self.layer.dims.events.ndisplay.connect(self._on_ndisplay_change)

        interp_comboBox = QComboBox()
        for interp in Interpolation:
            interp_comboBox.addItem(str(interp))
        index = interp_comboBox.findText(self.layer.interpolation,
                                         Qt.MatchFixedString)
        interp_comboBox.setCurrentIndex(index)
        interp_comboBox.activated[str].connect(
            lambda text=interp_comboBox: self.changeInterpolation(text))
        self.interpComboBox = interp_comboBox
        self.interpLabel = QLabel('interpolation:')

        renderComboBox = QComboBox()
        for render in Rendering:
            renderComboBox.addItem(str(render))
        index = renderComboBox.findText(self.layer.rendering,
                                        Qt.MatchFixedString)
        renderComboBox.setCurrentIndex(index)
        renderComboBox.activated[str].connect(
            lambda text=renderComboBox: self.changeRendering(text))
        self.renderComboBox = renderComboBox
        self.renderLabel = QLabel('rendering:')

        sld = QSlider(Qt.Horizontal)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(0)
        sld.setMaximum(100)
        sld.setSingleStep(1)
        sld.setValue(self.layer.iso_threshold * 100)
        sld.valueChanged[int].connect(
            lambda value=sld: self.changeIsoTheshold(value))
        self.isoThesholdSilder = sld
        self.isoThesholdLabel = QLabel('iso threshold:')
        self._on_ndisplay_change(None)

        # grid_layout created in QtLayerControls
        # addWidget(widget, row, column, [row_span, column_span])
        self.grid_layout.addWidget(QLabel('opacity:'), 0, 0)
        self.grid_layout.addWidget(self.opacitySilder, 0, 1, 1, 2)
        self.grid_layout.addWidget(QLabel('contrast limits:'), 1, 0)
        self.grid_layout.addWidget(self.contrastLimitsSlider, 1, 1, 1, 2)
        self.grid_layout.addWidget(QLabel('gamma:'), 2, 0)
        self.grid_layout.addWidget(self.gammaSlider, 2, 1, 1, 2)
        self.grid_layout.addWidget(self.isoThesholdLabel, 3, 0)
        self.grid_layout.addWidget(self.isoThesholdSilder, 3, 1, 1, 2)
        self.grid_layout.addWidget(QLabel('colormap:'), 4, 0)
        self.grid_layout.addWidget(self.colormapComboBox, 4, 2)
        self.grid_layout.addWidget(self.colorbarLabel, 4, 1)
        self.grid_layout.addWidget(QLabel('blending:'), 5, 0)
        self.grid_layout.addWidget(self.blendComboBox, 5, 1, 1, 2)
        self.grid_layout.addWidget(self.renderLabel, 6, 0)
        self.grid_layout.addWidget(self.renderComboBox, 6, 1, 1, 2)
        self.grid_layout.addWidget(self.interpLabel, 7, 0)
        self.grid_layout.addWidget(self.interpComboBox, 7, 1, 1, 2)
        self.grid_layout.setRowStretch(8, 1)
        self.grid_layout.setColumnStretch(1, 1)
        self.grid_layout.setVerticalSpacing(4)
Exemplo n.º 26
0
    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.interpolation.connect(self._on_interpolation_change)
        self.layer.events.rendering.connect(self._on_rendering_change)
        self.layer.events.iso_threshold.connect(self._on_iso_threshold_change)
        self.layer.events.attenuation.connect(self._on_attenuation_change)
        self.layer.dims.events.ndisplay.connect(self._on_ndisplay_change)

        self.interpComboBox = QComboBox(self)
        self.interpComboBox.activated[str].connect(self.changeInterpolation)
        self.interpLabel = QLabel('interpolation:')

        renderComboBox = QComboBox(self)
        renderComboBox.addItems(Rendering.keys())
        index = renderComboBox.findText(
            self.layer.rendering, Qt.MatchFixedString
        )
        renderComboBox.setCurrentIndex(index)
        renderComboBox.activated[str].connect(self.changeRendering)
        self.renderComboBox = renderComboBox
        self.renderLabel = QLabel('rendering:')

        sld = QSlider(Qt.Horizontal, parent=self)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(0)
        sld.setMaximum(100)
        sld.setSingleStep(1)
        sld.setValue(int(self.layer.iso_threshold * 100))
        sld.valueChanged.connect(self.changeIsoThreshold)
        self.isoThresholdSlider = sld
        self.isoThresholdLabel = QLabel('iso threshold:')

        sld = QSlider(Qt.Horizontal, parent=self)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(0)
        sld.setMaximum(100)
        sld.setSingleStep(1)
        sld.setValue(int(self.layer.attenuation * 200))
        sld.valueChanged.connect(self.changeAttenuation)
        self.attenuationSlider = sld
        self.attenuationLabel = QLabel('attenuation:')
        self._on_ndisplay_change()

        colormap_layout = QHBoxLayout()
        colormap_layout.addWidget(self.colorbarLabel)
        colormap_layout.addWidget(self.colormapComboBox)
        colormap_layout.addStretch(1)

        # grid_layout created in QtLayerControls
        # addWidget(widget, row, column, [row_span, column_span])
        self.grid_layout.addWidget(QLabel('opacity:'), 0, 0)
        self.grid_layout.addWidget(self.opacitySlider, 0, 1)
        self.grid_layout.addWidget(QLabel('contrast limits:'), 1, 0)
        self.grid_layout.addWidget(self.contrastLimitsSlider, 1, 1)
        self.grid_layout.addWidget(QLabel('gamma:'), 2, 0)
        self.grid_layout.addWidget(self.gammaSlider, 2, 1)
        self.grid_layout.addWidget(QLabel('colormap:'), 3, 0)
        self.grid_layout.addLayout(colormap_layout, 3, 1)
        self.grid_layout.addWidget(QLabel('blending:'), 4, 0)
        self.grid_layout.addWidget(self.blendComboBox, 4, 1)
        self.grid_layout.addWidget(self.interpLabel, 5, 0)
        self.grid_layout.addWidget(self.interpComboBox, 5, 1)
        self.grid_layout.addWidget(self.renderLabel, 6, 0)
        self.grid_layout.addWidget(self.renderComboBox, 6, 1)
        self.grid_layout.addWidget(self.isoThresholdLabel, 7, 0)
        self.grid_layout.addWidget(self.isoThresholdSlider, 7, 1)
        self.grid_layout.addWidget(self.attenuationLabel, 8, 0)
        self.grid_layout.addWidget(self.attenuationSlider, 8, 1)
        self.grid_layout.setRowStretch(9, 1)
        self.grid_layout.setColumnStretch(1, 1)
        self.grid_layout.setSpacing(4)
Exemplo n.º 27
0
    def __init__(self, layer):
        super().__init__()

        self.layer = layer
        layer.events.select.connect(lambda v: self.setSelected(True))
        layer.events.deselect.connect(lambda v: self.setSelected(False))
        layer.events.name.connect(self._on_layer_name_change)
        layer.events.blending.connect(self._on_blending_change)
        layer.events.opacity.connect(self._on_opacity_change)
        layer.events.visible.connect(self._on_visible_change)
        layer.events.thumbnail.connect(self._on_thumbnail_change)

        self.setObjectName('layer')

        self.vbox_layout = QVBoxLayout()
        self.top = QFrame()
        self.top_layout = QHBoxLayout()
        self.grid = QFrame()
        self.grid_layout = QGridLayout()
        self.vbox_layout.addWidget(self.top)
        self.vbox_layout.addWidget(self.grid)
        self.vbox_layout.setSpacing(0)
        self.top.setFixedHeight(38)
        self.top_layout.setContentsMargins(0, 0, 0, 0)
        self.grid_layout.setContentsMargins(0, 0, 0, 0)
        self.top_layout.setAlignment(Qt.AlignCenter)
        self.top.setLayout(self.top_layout)
        self.grid.setLayout(self.grid_layout)
        self.setLayout(self.vbox_layout)

        self.name_column = 0
        self.property_column = 1

        cb = QCheckBox(self)
        cb.setObjectName('visibility')
        cb.setToolTip('Layer visibility')
        cb.setChecked(self.layer.visible)
        cb.setProperty('mode', 'visibility')
        cb.stateChanged.connect(lambda state=cb: self.changeVisible(state))
        self.visibleCheckBox = cb
        self.top_layout.addWidget(cb)

        tb = QLabel(self)
        tb.setObjectName('thumbmnail')
        tb.setToolTip('Layer thumbmnail')
        self.thumbnail_label = tb
        self._on_thumbnail_change(None)
        self.top_layout.addWidget(tb)

        textbox = QLineEdit(self)
        textbox.setText(layer.name)
        textbox.home(False)
        textbox.setToolTip('Layer name')
        textbox.setAcceptDrops(False)
        textbox.setEnabled(True)
        textbox.editingFinished.connect(self.changeText)
        self.nameTextBox = textbox
        self.top_layout.addWidget(textbox)

        pb = QPushButton(self)
        pb.setToolTip('Expand properties')
        pb.clicked.connect(self.changeExpanded)
        pb.setObjectName('expand')
        self.expand_button = pb
        self.top_layout.addWidget(pb)

        row = self.grid_layout.rowCount()
        sld = QSlider(Qt.Horizontal, self)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(0)
        sld.setMaximum(100)
        sld.setSingleStep(1)
        sld.setValue(self.layer.opacity * 100)
        sld.valueChanged[int].connect(
            lambda value=sld: self.changeOpacity(value))
        self.opacitySilder = sld
        row = self.grid_layout.rowCount()
        self.grid_layout.addWidget(QLabel('opacity:'), row, self.name_column)
        self.grid_layout.addWidget(sld, row, self.property_column)

        row = self.grid_layout.rowCount()
        blend_comboBox = QComboBox()
        for blend in Blending:
            blend_comboBox.addItem(str(blend))
        index = blend_comboBox.findText(self.layer.blending,
                                        Qt.MatchFixedString)
        blend_comboBox.setCurrentIndex(index)
        blend_comboBox.activated[str].connect(
            lambda text=blend_comboBox: self.changeBlending(text))
        self.blendComboBox = blend_comboBox
        self.grid_layout.addWidget(QLabel('blending:'), row, self.name_column)
        self.grid_layout.addWidget(blend_comboBox, row, self.property_column)

        msg = 'Click to select\nDrag to rearrange\nDouble click to expand'
        self.setToolTip(msg)
        self.setExpanded(False)
        self.setFixedWidth(250)
        self.grid_layout.setColumnMinimumWidth(0, 100)
        self.grid_layout.setColumnMinimumWidth(1, 100)

        self.setSelected(self.layer.selected)
Exemplo n.º 28
0
    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.mode.connect(self._on_mode_change)
        self.layer.events.n_dimensional.connect(self._on_n_dimensional_change)
        self.layer.events.symbol.connect(self._on_symbol_change)
        self.layer.events.size.connect(self._on_size_change)
        self.layer.events.current_edge_color.connect(
            self._on_current_edge_color_change)
        self.layer.events.current_face_color.connect(
            self._on_current_face_color_change)
        self.layer.events.editable.connect(self._on_editable_change)
        self.layer.text.events.visible.connect(self._on_text_visibility_change)

        sld = QSlider(Qt.Horizontal)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(1)
        sld.setMaximum(100)
        sld.setSingleStep(1)
        value = self.layer.current_size
        sld.setValue(int(value))
        sld.valueChanged.connect(self.changeSize)
        self.sizeSlider = sld

        self.faceColorEdit = QColorSwatchEdit(
            initial_color=self.layer.current_face_color,
            tooltip='click to set current face color',
        )
        self.edgeColorEdit = QColorSwatchEdit(
            initial_color=self.layer.current_edge_color,
            tooltip='click to set current edge color',
        )
        self.faceColorEdit.color_changed.connect(self.changeFaceColor)
        self.edgeColorEdit.color_changed.connect(self.changeEdgeColor)

        symbol_comboBox = QComboBox()
        symbol_comboBox.addItems([str(s) for s in Symbol])
        index = symbol_comboBox.findText(self.layer.symbol,
                                         Qt.MatchFixedString)
        symbol_comboBox.setCurrentIndex(index)
        symbol_comboBox.activated[str].connect(self.changeSymbol)
        self.symbolComboBox = symbol_comboBox

        ndim_cb = QCheckBox()
        ndim_cb.setToolTip('N-dimensional points')
        ndim_cb.setChecked(self.layer.n_dimensional)
        ndim_cb.stateChanged.connect(self.change_ndim)
        self.ndimCheckBox = ndim_cb

        self.select_button = QtModeRadioButton(layer,
                                               'select_points',
                                               Mode.SELECT,
                                               tooltip='Select points')
        self.addition_button = QtModeRadioButton(layer,
                                                 'add_points',
                                                 Mode.ADD,
                                                 tooltip='Add points')
        self.panzoom_button = QtModeRadioButton(layer,
                                                'pan_zoom',
                                                Mode.PAN_ZOOM,
                                                tooltip='Pan/zoom',
                                                checked=True)
        self.delete_button = QtModePushButton(
            layer,
            'delete_shape',
            slot=self.layer.remove_selected,
            tooltip='Delete selected points',
        )

        text_disp_cb = QCheckBox()
        text_disp_cb.setToolTip('toggle text visibility')
        text_disp_cb.setChecked(self.layer.text.visible)
        text_disp_cb.stateChanged.connect(self.change_text_visibility)
        self.textDispCheckBox = text_disp_cb

        self.button_group = QButtonGroup(self)
        self.button_group.addButton(self.select_button)
        self.button_group.addButton(self.addition_button)
        self.button_group.addButton(self.panzoom_button)

        button_row = QHBoxLayout()
        button_row.addStretch(1)
        button_row.addWidget(self.delete_button)
        button_row.addWidget(self.addition_button)
        button_row.addWidget(self.select_button)
        button_row.addWidget(self.panzoom_button)
        button_row.setContentsMargins(0, 0, 0, 5)
        button_row.setSpacing(4)

        # grid_layout created in QtLayerControls
        # addWidget(widget, row, column, [row_span, column_span])
        self.grid_layout.addLayout(button_row, 0, 1)
        self.grid_layout.addWidget(QLabel('opacity:'), 1, 0)
        self.grid_layout.addWidget(self.opacitySlider, 1, 1)
        self.grid_layout.addWidget(QLabel('point size:'), 2, 0)
        self.grid_layout.addWidget(self.sizeSlider, 2, 1)
        self.grid_layout.addWidget(QLabel('blending:'), 3, 0)
        self.grid_layout.addWidget(self.blendComboBox, 3, 1)
        self.grid_layout.addWidget(QLabel('symbol:'), 4, 0)
        self.grid_layout.addWidget(self.symbolComboBox, 4, 1)
        self.grid_layout.addWidget(QLabel('face color:'), 5, 0)
        self.grid_layout.addWidget(self.faceColorEdit, 5, 1)
        self.grid_layout.addWidget(QLabel('edge color:'), 6, 0)
        self.grid_layout.addWidget(self.edgeColorEdit, 6, 1)
        self.grid_layout.addWidget(QLabel('display text:'), 7, 0)
        self.grid_layout.addWidget(self.textDispCheckBox, 7, 1)
        self.grid_layout.addWidget(QLabel('n-dim:'), 8, 0)
        self.grid_layout.addWidget(self.ndimCheckBox, 8, 1)
        self.grid_layout.setRowStretch(9, 1)
        self.grid_layout.setColumnStretch(1, 1)
        self.grid_layout.setSpacing(4)
Exemplo n.º 29
0
class PyDMSlider(QFrame, PyDMWritableWidget):
    """
    A QSlider with support for Channels and more from PyDM.

    Parameters
    ----------
    parent : QWidget
        The parent widget for the Label
    init_channel : str, optional
        The channel to be used by the widget.
    """
    actionTriggered = Signal(int)
    rangeChanged = Signal(float, float)
    sliderMoved = Signal(float)
    sliderPressed = Signal()
    sliderReleased = Signal()
    valueChanged = Signal(float)

    def __init__(self, parent=None, init_channel=None):
        QFrame.__init__(self, parent)
        PyDMWritableWidget.__init__(self, init_channel=init_channel)
        self.alarmSensitiveContent = True
        self.alarmSensitiveBorder = False
        # Internal values for properties
        self.set_enable_state()
        self._show_limit_labels = True
        self._show_value_label = True
        self._user_defined_limits = False
        self._needs_limit_info = True
        self._minimum = None
        self._maximum = None
        self._user_minimum = -10.0
        self._user_maximum = 10.0
        self._num_steps = 101
        self._orientation = Qt.Horizontal
        # Set up all the internal widgets that make up a PyDMSlider.
        # We'll add all these things to layouts when we call setup_widgets_for_orientation
        label_size_policy = QSizePolicy(QSizePolicy.Maximum, QSizePolicy.Fixed)
        self.low_lim_label = QLabel(self)
        self.low_lim_label.setObjectName("lowLimLabel")
        self.low_lim_label.setSizePolicy(label_size_policy)
        self.low_lim_label.setAlignment(Qt.AlignLeft | Qt.AlignTrailing
                                        | Qt.AlignVCenter)
        self.value_label = QLabel(self)
        self.value_label.setObjectName("valueLabel")
        self.value_label.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
        self.high_lim_label = QLabel(self)
        self.high_lim_label.setObjectName("highLimLabel")
        self.high_lim_label.setSizePolicy(label_size_policy)
        self.high_lim_label.setAlignment(Qt.AlignRight | Qt.AlignTrailing
                                         | Qt.AlignVCenter)
        self._slider = QSlider(parent=self)
        self._slider.setOrientation(Qt.Horizontal)
        self._slider.sliderMoved.connect(self.internal_slider_moved)
        self._slider.sliderPressed.connect(self.internal_slider_pressed)
        self._slider.sliderReleased.connect(self.internal_slider_released)
        self._slider.valueChanged.connect(self.internal_slider_value_changed)
        # self.vertical_layout.addWidget(self._slider)
        # Other internal variables and final setup steps
        self._slider_position_to_value_map = None
        self._mute_internal_slider_changes = False
        self.setup_widgets_for_orientation(self._orientation)
        self.reset_slider_limits()

    def init_for_designer(self):
        """
        Method called after the constructor to tweak configurations for
        when using the widget with the Qt Designer
        """
        self.value = 0.0

    @Property(Qt.Orientation)
    def orientation(self):
        """
        The slider orientation (Horizontal or Vertical)

        Returns
        -------
        int
            Qt.Horizontal or Qt.Vertical
        """
        return self._orientation

    @orientation.setter
    def orientation(self, new_orientation):
        """
        The slider orientation (Horizontal or Vertical)

        Parameters
        ----------
        new_orientation : int
            Qt.Horizontal or Qt.Vertical
        """
        self._orientation = new_orientation
        self.setup_widgets_for_orientation(new_orientation)

    def setup_widgets_for_orientation(self, new_orientation):
        """
        Reconstruct the widget given the orientation.

        Parameters
        ----------
        new_orientation : int
            Qt.Horizontal or Qt.Vertical
        """
        if new_orientation not in (Qt.Horizontal, Qt.Vertical):
            logger.error(
                "Invalid orientation '{0}'. The existing layout will not change."
                .format(new_orientation))
            return

        layout = None
        if new_orientation == Qt.Horizontal:
            layout = QVBoxLayout()
            layout.setContentsMargins(4, 0, 4, 4)
            label_layout = QHBoxLayout()
            label_layout.addWidget(self.low_lim_label)
            label_layout.addStretch(0)
            label_layout.addWidget(self.value_label)
            label_layout.addStretch(0)
            label_layout.addWidget(self.high_lim_label)
            layout.addLayout(label_layout)
            self._slider.setOrientation(new_orientation)
            layout.addWidget(self._slider)
        elif new_orientation == Qt.Vertical:
            layout = QHBoxLayout()
            layout.setContentsMargins(0, 4, 4, 4)
            label_layout = QVBoxLayout()
            label_layout.addWidget(self.high_lim_label)
            label_layout.addStretch(0)
            label_layout.addWidget(self.value_label)
            label_layout.addStretch(0)
            label_layout.addWidget(self.low_lim_label)
            layout.addLayout(label_layout)
            self._slider.setOrientation(new_orientation)
            layout.addWidget(self._slider)

        if self.layout() is not None:
            # Trick to remove the existing layout by re-parenting it in an empty widget.
            QWidget().setLayout(self.layout())
        self.setLayout(layout)

    def update_labels(self):
        """
        Update the limits and value labels with the correct values.
        """
        def set_label(value, label_widget):
            if value is None:
                label_widget.setText("")
            else:
                label_widget.setText(self.format_string.format(value))

        set_label(self.minimum, self.low_lim_label)
        set_label(self.maximum, self.high_lim_label)
        set_label(self.value, self.value_label)

    def reset_slider_limits(self):
        """
        Reset the limits and adjust the labels properly for the slider.
        """
        if self.minimum is None or self.maximum is None:
            self._needs_limit_info = True
            self.set_enable_state()
            return
        self._needs_limit_info = False
        self._slider.setMinimum(0)
        self._slider.setMaximum(self._num_steps - 1)
        self._slider.setSingleStep(1)
        self._slider.setPageStep(10)
        self._slider_position_to_value_map = np.linspace(self.minimum,
                                                         self.maximum,
                                                         num=self._num_steps)
        self.update_labels()
        self.set_slider_to_closest_value(self.value)
        self.rangeChanged.emit(self.minimum, self.maximum)
        self.set_enable_state()

    def find_closest_slider_position_to_value(self, val):
        """
        Find and returns the index for the closest position on the slider
        for a given value.

        Parameters
        ----------
        val : float

        Returns
        -------
        int
        """
        diff = abs(self._slider_position_to_value_map - float(val))
        return np.argmin(diff)

    def set_slider_to_closest_value(self, val):
        """
        Set the value for the slider according to a given value.

        Parameters
        ----------
        val : float
        """
        if val is None or self._needs_limit_info:
            return
        # When we set the slider to the closest value, it may end up at a slightly
        # different position than val (if val is not in self._slider_position_to_value_map)
        # We don't want that slight difference to get broacast out and put the channel
        # somewhere new.    For example, if the slider can only be at 0.4 or 0.5, but a
        # new value comes in of 0.45, its more important to keep the 0.45 than to change
        # it to where the slider gets set.  Therefore, we mute the internal slider changes
        # so that its valueChanged signal doesn't cause us to emit a signal to PyDM to change
        # the value of the channel.
        self._mute_internal_slider_changes = True
        self._slider.setValue(self.find_closest_slider_position_to_value(val))
        self._mute_internal_slider_changes = False

    def value_changed(self, new_val):
        """
        Callback invoked when the Channel value is changed.

        Parameters
        ----------
        new_val : int or float
            The new value from the channel.
        """
        PyDMWritableWidget.value_changed(self, new_val)
        if hasattr(self, "value_label"):
            self.value_label.setText(self.format_string.format(self.value))
        if not self._slider.isSliderDown():
            self.set_slider_to_closest_value(self.value)

    def ctrl_limit_changed(self, which, new_limit):
        """
        Callback invoked when the Channel receives new control limit
        values.

        Parameters
        ----------
        which : str
            Which control limit was changed. "UPPER" or "LOWER"
        new_limit : float
            New value for the control limit
        """
        PyDMWritableWidget.ctrl_limit_changed(self, which, new_limit)
        if not self.userDefinedLimits:
            self.reset_slider_limits()

    def update_format_string(self):
        """
        Reconstruct the format string to be used when representing the
        output value.

        Returns
        -------
        format_string : str
            The format string to be used including or not the precision
            and unit
        """
        fs = PyDMWritableWidget.update_format_string(self)
        self.update_labels()
        return fs

    def set_enable_state(self):
        """
        Determines wether or not the widget must be enabled or not depending
        on the write access, connection state and presence of limits information
        """
        self.setEnabled(self._write_access and self._connected
                        and not self._needs_limit_info)

    @Slot(int)
    def internal_slider_action_triggered(self, action):
        self.actionTriggered.emit(action)

    @Slot(int)
    def internal_slider_moved(self, val):
        """
        Method invoked when the slider is moved.

        Parameters
        ----------
        val : float
        """
        # The user has moved the slider, we need to update our value.
        # Only update the underlying value, not the self.value property,
        # because we don't need to reset the slider position.    If we change
        # self.value, we can get into a loop where the position changes, which
        # updates the value, which changes the position again, etc etc.
        self.value = self._slider_position_to_value_map[val]
        self.sliderMoved.emit(self.value)

    @Slot()
    def internal_slider_pressed(self):
        """
        Method invoked when the slider is pressed
        """
        self.sliderPressed.emit()

    @Slot()
    def internal_slider_released(self):
        """
        Method invoked when the slider is released
        """
        self.sliderReleased.emit()

    @Slot(int)
    def internal_slider_value_changed(self, val):
        """
        Method invoked when a new value is selected on the slider.
        This will cause the new value to be emitted to the signal
        unless `mute_internal_slider_changes` is True.

        Parameters
        ----------
        val : int
        """
        # At this point, our local copy of the value reflects the position of the
        # slider, now all we need to do is emit a signal to PyDM so that the data
        # plugin will send a put to the channel.  Don't update self.value or self._value
        # in here, it is pointless at best, and could cause an infinite loop at worst.
        if not self._mute_internal_slider_changes:
            self.send_value_signal[float].emit(self.value)

    @Property(bool)
    def showLimitLabels(self):
        """
        Whether or not the high and low limits should be displayed on the slider.

        Returns
        -------
        bool
        """
        return self._show_limit_labels

    @showLimitLabels.setter
    def showLimitLabels(self, checked):
        """
        Whether or not the high and low limits should be displayed on the slider.

        Parameters
        ----------
        checked : bool
        """
        self._show_limit_labels = checked
        if checked:
            self.low_lim_label.show()
            self.high_lim_label.show()
        else:
            self.low_lim_label.hide()
            self.high_lim_label.hide()

    @Property(bool)
    def showValueLabel(self):
        """
        Whether or not the current value should be displayed on the slider.

        Returns
        -------
        bool
        """
        return self._show_value_label

    @showValueLabel.setter
    def showValueLabel(self, checked):
        """
        Whether or not the current value should be displayed on the slider.

        Parameters
        ----------
        checked : bool
        """
        self._show_value_label = checked
        if checked:
            self.value_label.show()
        else:
            self.value_label.hide()

    @Property(QSlider.TickPosition)
    def tickPosition(self):
        """
        Where to draw tick marks for the slider.

        Returns
        -------
        QSlider.TickPosition
        """
        return self._slider.tickPosition()

    @tickPosition.setter
    def tickPosition(self, position):
        """
        Where to draw tick marks for the slider.

        Parameter
        ---------
        position : QSlider.TickPosition
        """
        self._slider.setTickPosition(position)

    @Property(bool)
    def userDefinedLimits(self):
        """
        Wether or not to use limits defined by the user and not from the
        channel

        Returns
        -------
        bool
        """
        return self._user_defined_limits

    @userDefinedLimits.setter
    def userDefinedLimits(self, user_defined_limits):
        """
        Wether or not to use limits defined by the user and not from the
        channel

        Parameters
        ----------
        user_defined_limits : bool
        """
        self._user_defined_limits = user_defined_limits
        self.reset_slider_limits()

    @Property(float)
    def userMinimum(self):
        """
        Lower user defined limit value

        Returns
        -------
        float
        """
        return self._user_minimum

    @userMinimum.setter
    def userMinimum(self, new_min):
        """
        Lower user defined limit value

        Parameters
        ----------
        new_min : float
        """
        self._user_minimum = float(new_min) if new_min is not None else None
        if self.userDefinedLimits:
            self.reset_slider_limits()

    @Property(float)
    def userMaximum(self):
        """
        Upper user defined limit value

        Returns
        -------
        float
        """
        return self._user_maximum

    @userMaximum.setter
    def userMaximum(self, new_max):
        """
        Upper user defined limit value

        Parameters
        ----------
        new_max : float
        """
        self._user_maximum = float(new_max) if new_max is not None else None
        if self.userDefinedLimits:
            self.reset_slider_limits()

    @property
    def minimum(self):
        """
        The current value being used for the lower limit

        Returns
        -------
        float
        """
        if self.userDefinedLimits:
            return self._user_minimum
        return self._lower_ctrl_limit

    @property
    def maximum(self):
        """
        The current value being used for the upper limit

        Returns
        -------
        float
        """
        if self.userDefinedLimits:
            return self._user_maximum
        return self._upper_ctrl_limit

    @Property(int)
    def num_steps(self):
        """
        The number of steps on the slider

        Returns
        -------
        int
        """
        return self._num_steps

    @num_steps.setter
    def num_steps(self, new_steps):
        """
        The number of steps on the slider

        Parameters
        ----------
        new_steps : int
        """
        self._num_steps = int(new_steps)
        self.reset_slider_limits()
Exemplo n.º 30
0
    def __init__(self, layer):
        super().__init__(layer)

        self.layer.events.mode.connect(self._on_mode_change)
        self.layer.events.edge_width.connect(self._on_edge_width_change)
        self.layer.events.current_edge_color.connect(
            self._on_current_edge_color_change
        )
        self.layer.events.current_face_color.connect(
            self._on_current_face_color_change
        )
        self.layer.events.editable.connect(self._on_editable_change)
        self.layer.text.events.visible.connect(self._on_text_visibility_change)

        sld = QSlider(Qt.Horizontal)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setMinimum(0)
        sld.setMaximum(40)
        sld.setSingleStep(1)
        value = self.layer.current_edge_width
        if isinstance(value, Iterable):
            if isinstance(value, list):
                value = np.asarray(value)
            value = value.mean()
        sld.setValue(int(value))
        sld.valueChanged.connect(self.changeWidth)
        self.widthSlider = sld

        def _radio_button(
            parent,
            btn_name,
            mode,
            action_name,
            extra_tooltip_text='',
            **kwargs,
        ):
            """
            Convenience local function to create a RadioButton and bind it to
            an action at the same time.

            Parameters
            ----------
            parent : Any
                Parent of the generated QtModeRadioButton
            btn_name : str
                name fo the button
            mode : Enum
                Value Associated to current button
            action_name : str
                Action triggered when button pressed
            extra_tooltip_text : str
                Text you want added after the automatic tooltip set by the
                action manager
            **kwargs:
                Passed to QtModeRadioButton

            Returns
            -------
            button: QtModeRadioButton
                button bound (or that will be bound to) to action `action_name`

            Notes
            -----
            When shortcuts are modifed/added/removed via the action manager, the
            tooltip will be updated to reflect the new shortcut.
            """
            action_name = 'napari:' + action_name
            btn = QtModeRadioButton(parent, btn_name, mode, **kwargs)
            action_manager.bind_button(
                action_name,
                btn,
                extra_tooltip_text='',
            )
            return btn

        self.select_button = _radio_button(
            layer, 'select', Mode.SELECT, "activate_select_mode"
        )

        self.direct_button = _radio_button(
            layer, 'direct', Mode.DIRECT, "activate_direct_mode"
        )

        self.panzoom_button = _radio_button(
            layer,
            'zoom',
            Mode.PAN_ZOOM,
            "napari:activate_shape_pan_zoom_mode",
            extra_tooltip_text=trans._('(or hold Space)'),
            checked=True,
        )

        self.rectangle_button = _radio_button(
            layer,
            'rectangle',
            Mode.ADD_RECTANGLE,
            "activate_add_rectangle_mode",
        )
        self.ellipse_button = _radio_button(
            layer,
            'ellipse',
            Mode.ADD_ELLIPSE,
            "activate_add_ellipse_mode",
        )

        self.line_button = _radio_button(
            layer, 'line', Mode.ADD_LINE, "activate_add_line_mode"
        )
        self.path_button = _radio_button(
            layer, 'path', Mode.ADD_PATH, "activate_add_path_mode"
        )
        self.polygon_button = _radio_button(
            layer,
            'polygon',
            Mode.ADD_POLYGON,
            "activate_add_polygon_mode",
        )
        self.vertex_insert_button = _radio_button(
            layer,
            'vertex_insert',
            Mode.VERTEX_INSERT,
            "activate_vertex_insert_mode",
        )
        self.vertex_remove_button = _radio_button(
            layer,
            'vertex_remove',
            Mode.VERTEX_REMOVE,
            "activate_vertex_remove_mode",
        )

        self.move_front_button = QtModePushButton(
            layer,
            'move_front',
            slot=self.layer.move_to_front,
            tooltip=trans._('Move to front'),
        )

        action_manager.bind_button(
            'napari:move_shapes_selection_to_front', self.move_front_button
        )

        self.move_back_button = QtModePushButton(
            layer,
            'move_back',
            slot=self.layer.move_to_back,
            tooltip=trans._('Move to back'),
        )
        action_manager.bind_button(
            'napari:move_shapes_selection_to_back', self.move_back_button
        )

        self.delete_button = QtModePushButton(
            layer,
            'delete_shape',
            slot=self.layer.remove_selected,
            tooltip=trans._(
                "Delete selected shapes ({shortcut})",
                shortcut=Shortcut('Backspace').platform,
            ),
        )

        self.button_group = QButtonGroup(self)
        self.button_group.addButton(self.select_button)
        self.button_group.addButton(self.direct_button)
        self.button_group.addButton(self.panzoom_button)
        self.button_group.addButton(self.rectangle_button)
        self.button_group.addButton(self.ellipse_button)
        self.button_group.addButton(self.line_button)
        self.button_group.addButton(self.path_button)
        self.button_group.addButton(self.polygon_button)
        self.button_group.addButton(self.vertex_insert_button)
        self.button_group.addButton(self.vertex_remove_button)

        button_grid = QGridLayout()
        button_grid.addWidget(self.vertex_remove_button, 0, 2)
        button_grid.addWidget(self.vertex_insert_button, 0, 3)
        button_grid.addWidget(self.delete_button, 0, 4)
        button_grid.addWidget(self.direct_button, 0, 5)
        button_grid.addWidget(self.select_button, 0, 6)
        button_grid.addWidget(self.panzoom_button, 0, 7)
        button_grid.addWidget(self.move_back_button, 1, 1)
        button_grid.addWidget(self.move_front_button, 1, 2)
        button_grid.addWidget(self.ellipse_button, 1, 3)
        button_grid.addWidget(self.rectangle_button, 1, 4)
        button_grid.addWidget(self.polygon_button, 1, 5)
        button_grid.addWidget(self.line_button, 1, 6)
        button_grid.addWidget(self.path_button, 1, 7)
        button_grid.setContentsMargins(5, 0, 0, 5)
        button_grid.setColumnStretch(0, 1)
        button_grid.setSpacing(4)

        self.faceColorEdit = QColorSwatchEdit(
            initial_color=self.layer.current_face_color,
            tooltip=trans._('click to set current face color'),
        )
        self._on_current_face_color_change()
        self.edgeColorEdit = QColorSwatchEdit(
            initial_color=self.layer.current_edge_color,
            tooltip=trans._('click to set current edge color'),
        )
        self._on_current_edge_color_change()
        self.faceColorEdit.color_changed.connect(self.changeFaceColor)
        self.edgeColorEdit.color_changed.connect(self.changeEdgeColor)

        text_disp_cb = QCheckBox()
        text_disp_cb.setToolTip(trans._('toggle text visibility'))
        text_disp_cb.setChecked(self.layer.text.visible)
        text_disp_cb.stateChanged.connect(self.change_text_visibility)
        self.textDispCheckBox = text_disp_cb

        # grid_layout created in QtLayerControls
        # addWidget(widget, row, column, [row_span, column_span])
        self.grid_layout.addLayout(button_grid, 0, 0, 1, 2)
        self.grid_layout.addWidget(QLabel(trans._('opacity:')), 1, 0)
        self.grid_layout.addWidget(self.opacitySlider, 1, 1)
        self.grid_layout.addWidget(QLabel(trans._('edge width:')), 2, 0)
        self.grid_layout.addWidget(self.widthSlider, 2, 1)
        self.grid_layout.addWidget(QLabel(trans._('blending:')), 3, 0)
        self.grid_layout.addWidget(self.blendComboBox, 3, 1)
        self.grid_layout.addWidget(QLabel(trans._('face color:')), 4, 0)
        self.grid_layout.addWidget(self.faceColorEdit, 4, 1)
        self.grid_layout.addWidget(QLabel(trans._('edge color:')), 5, 0)
        self.grid_layout.addWidget(self.edgeColorEdit, 5, 1)
        self.grid_layout.addWidget(QLabel(trans._('display text:')), 6, 0)
        self.grid_layout.addWidget(self.textDispCheckBox, 6, 1)
        self.grid_layout.setRowStretch(7, 1)
        self.grid_layout.setColumnStretch(1, 1)
        self.grid_layout.setSpacing(4)
Exemplo n.º 31
0
class PyDMSlider(QFrame, TextFormatter, PyDMWritableWidget):
    """
    A QSlider with support for Channels and more from PyDM.

    Parameters
    ----------
    parent : QWidget
        The parent widget for the Label
    init_channel : str, optional
        The channel to be used by the widget.
    """
    actionTriggered = Signal(int)
    rangeChanged = Signal(float, float)
    sliderMoved = Signal(float)
    sliderPressed = Signal()
    sliderReleased = Signal()
    valueChanged = Signal(float)

    def __init__(self, parent=None, init_channel=None):
        QFrame.__init__(self, parent)
        PyDMWritableWidget.__init__(self, init_channel=init_channel)
        self.alarmSensitiveContent = True
        self.alarmSensitiveBorder = False
        # Internal values for properties
        self._show_limit_labels = True
        self._show_value_label = True
        self._user_defined_limits = False
        self._needs_limit_info = True
        self._minimum = None
        self._maximum = None
        self._user_minimum = -10.0
        self._user_maximum = 10.0
        self._num_steps = 101
        self._orientation = Qt.Horizontal
        # Set up all the internal widgets that make up a PyDMSlider.
        # We'll add all these things to layouts when we call setup_widgets_for_orientation
        label_size_policy = QSizePolicy(QSizePolicy.Maximum, QSizePolicy.Fixed)
        self.low_lim_label = QLabel(self)
        self.low_lim_label.setObjectName("lowLimLabel")
        self.low_lim_label.setSizePolicy(label_size_policy)
        self.low_lim_label.setAlignment(Qt.AlignLeft | Qt.AlignTrailing | Qt.AlignVCenter)
        self.value_label = QLabel(self)
        self.value_label.setObjectName("valueLabel")
        self.value_label.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
        self.high_lim_label = QLabel(self)
        self.high_lim_label.setObjectName("highLimLabel")
        self.high_lim_label.setSizePolicy(label_size_policy)
        self.high_lim_label.setAlignment(Qt.AlignRight | Qt.AlignTrailing | Qt.AlignVCenter)
        self._slider = QSlider(parent=self)
        self._slider.setOrientation(Qt.Horizontal)
        self._slider.sliderMoved.connect(self.internal_slider_moved)
        self._slider.sliderPressed.connect(self.internal_slider_pressed)
        self._slider.sliderReleased.connect(self.internal_slider_released)
        self._slider.valueChanged.connect(self.internal_slider_value_changed)
        # self.vertical_layout.addWidget(self._slider)
        # Other internal variables and final setup steps
        self._slider_position_to_value_map = None
        self._mute_internal_slider_changes = False
        self.setup_widgets_for_orientation(self._orientation)
        self.reset_slider_limits()

    def init_for_designer(self):
        """
        Method called after the constructor to tweak configurations for
        when using the widget with the Qt Designer
        """
        self.value = 0.0

    @Property(Qt.Orientation)
    def orientation(self):
        """
        The slider orientation (Horizontal or Vertical)

        Returns
        -------
        int
            Qt.Horizontal or Qt.Vertical
        """
        return self._orientation

    @orientation.setter
    def orientation(self, new_orientation):
        """
        The slider orientation (Horizontal or Vertical)

        Parameters
        ----------
        new_orientation : int
            Qt.Horizontal or Qt.Vertical
        """
        self._orientation = new_orientation
        self.setup_widgets_for_orientation(new_orientation)

    def setup_widgets_for_orientation(self, new_orientation):
        """
        Reconstruct the widget given the orientation.

        Parameters
        ----------
        new_orientation : int
            Qt.Horizontal or Qt.Vertical
        """
        if new_orientation not in (Qt.Horizontal, Qt.Vertical):
            logger.error("Invalid orientation '{0}'. The existing layout will not change.".format(new_orientation))
            return

        layout = None
        if new_orientation == Qt.Horizontal:
            layout = QVBoxLayout()
            layout.setContentsMargins(4, 0, 4, 4)
            label_layout = QHBoxLayout()
            label_layout.addWidget(self.low_lim_label)
            label_layout.addStretch(0)
            label_layout.addWidget(self.value_label)
            label_layout.addStretch(0)
            label_layout.addWidget(self.high_lim_label)
            layout.addLayout(label_layout)
            self._slider.setOrientation(new_orientation)
            layout.addWidget(self._slider)
        elif new_orientation == Qt.Vertical:
            layout = QHBoxLayout()
            layout.setContentsMargins(0, 4, 4, 4)
            label_layout = QVBoxLayout()
            label_layout.addWidget(self.high_lim_label)
            label_layout.addStretch(0)
            label_layout.addWidget(self.value_label)
            label_layout.addStretch(0)
            label_layout.addWidget(self.low_lim_label)
            layout.addLayout(label_layout)
            self._slider.setOrientation(new_orientation)
            layout.addWidget(self._slider)

        if self.layout() is not None:
            # Trick to remove the existing layout by re-parenting it in an empty widget.
            QWidget().setLayout(self.layout())
        self.setLayout(layout)

    def update_labels(self):
        """
        Update the limits and value labels with the correct values.
        """
        def set_label(value, label_widget):
            if value is None:
                label_widget.setText("")
            else:
                label_widget.setText(self.format_string.format(value))

        set_label(self.minimum, self.low_lim_label)
        set_label(self.maximum, self.high_lim_label)
        set_label(self.value, self.value_label)

    def reset_slider_limits(self):
        """
        Reset the limits and adjust the labels properly for the slider.
        """
        if self.minimum is None or self.maximum is None:
            self._needs_limit_info = True
            self.set_enable_state()
            return
        self._needs_limit_info = False
        self._slider.setMinimum(0)
        self._slider.setMaximum(self._num_steps - 1)
        self._slider.setSingleStep(1)
        self._slider.setPageStep(10)
        self._slider_position_to_value_map = np.linspace(self.minimum, self.maximum, num=self._num_steps)
        self.update_labels()
        self.set_slider_to_closest_value(self.value)
        self.rangeChanged.emit(self.minimum, self.maximum)
        self.set_enable_state()

    def find_closest_slider_position_to_value(self, val):
        """
        Find and returns the index for the closest position on the slider
        for a given value.

        Parameters
        ----------
        val : float

        Returns
        -------
        int
        """
        diff = abs(self._slider_position_to_value_map - float(val))
        return np.argmin(diff)

    def set_slider_to_closest_value(self, val):
        """
        Set the value for the slider according to a given value.

        Parameters
        ----------
        val : float
        """
        if val is None or self._needs_limit_info:
            return
        # When we set the slider to the closest value, it may end up at a slightly
        # different position than val (if val is not in self._slider_position_to_value_map)
        # We don't want that slight difference to get broacast out and put the channel
        # somewhere new.    For example, if the slider can only be at 0.4 or 0.5, but a
        # new value comes in of 0.45, its more important to keep the 0.45 than to change
        # it to where the slider gets set.  Therefore, we mute the internal slider changes
        # so that its valueChanged signal doesn't cause us to emit a signal to PyDM to change
        # the value of the channel.
        self._mute_internal_slider_changes = True
        self._slider.setValue(self.find_closest_slider_position_to_value(val))
        self._mute_internal_slider_changes = False

    def value_changed(self, new_val):
        """
        Callback invoked when the Channel value is changed.

        Parameters
        ----------
        new_val : int or float
            The new value from the channel.
        """
        PyDMWritableWidget.value_changed(self, new_val)
        if hasattr(self, "value_label"):
            self.value_label.setText(self.format_string.format(self.value))
        if not self._slider.isSliderDown():
            self.set_slider_to_closest_value(self.value)

    def ctrl_limit_changed(self, which, new_limit):
        """
        Callback invoked when the Channel receives new control limit
        values.

        Parameters
        ----------
        which : str
            Which control limit was changed. "UPPER" or "LOWER"
        new_limit : float
            New value for the control limit
        """
        PyDMWritableWidget.ctrl_limit_changed(self, which, new_limit)
        if not self.userDefinedLimits:
            self.reset_slider_limits()

    def update_format_string(self):
        """
        Reconstruct the format string to be used when representing the
        output value.

        Returns
        -------
        format_string : str
            The format string to be used including or not the precision
            and unit
        """
        fs = super(PyDMSlider, self).update_format_string()
        self.update_labels()
        return fs

    def set_enable_state(self):
        """
        Determines wether or not the widget must be enabled or not depending
        on the write access, connection state and presence of limits information
        """
        # Even though by documentation disabling parent QFrame (self), should disable internal
        # slider, in practice it still remains interactive (PyQt 5.12.1). Disabling explicitly, solves
        # the problem.
        should_enable = self._write_access and self._connected and not self._needs_limit_info
        self.setEnabled(should_enable)
        self._slider.setEnabled(should_enable)

    @Slot(int)
    def internal_slider_action_triggered(self, action):
        self.actionTriggered.emit(action)

    @Slot(int)
    def internal_slider_moved(self, val):
        """
        Method invoked when the slider is moved.

        Parameters
        ----------
        val : float
        """
        # Avoid potential crash if limits are undefined
        if self._slider_position_to_value_map is None:
            return
        # The user has moved the slider, we need to update our value.
        # Only update the underlying value, not the self.value property,
        # because we don't need to reset the slider position.    If we change
        # self.value, we can get into a loop where the position changes, which
        # updates the value, which changes the position again, etc etc.
        self.value = self._slider_position_to_value_map[val]
        self.sliderMoved.emit(self.value)

    @Slot()
    def internal_slider_pressed(self):
        """
        Method invoked when the slider is pressed
        """
        self.sliderPressed.emit()

    @Slot()
    def internal_slider_released(self):
        """
        Method invoked when the slider is released
        """
        self.sliderReleased.emit()

    @Slot(int)
    def internal_slider_value_changed(self, val):
        """
        Method invoked when a new value is selected on the slider.
        This will cause the new value to be emitted to the signal
        unless `mute_internal_slider_changes` is True.

        Parameters
        ----------
        val : int
        """
        # At this point, our local copy of the value reflects the position of the
        # slider, now all we need to do is emit a signal to PyDM so that the data
        # plugin will send a put to the channel.  Don't update self.value or self._value
        # in here, it is pointless at best, and could cause an infinite loop at worst.
        if not self._mute_internal_slider_changes:
            self.send_value_signal[float].emit(self.value)

    @Property(bool)
    def showLimitLabels(self):
        """
        Whether or not the high and low limits should be displayed on the slider.

        Returns
        -------
        bool
        """
        return self._show_limit_labels

    @showLimitLabels.setter
    def showLimitLabels(self, checked):
        """
        Whether or not the high and low limits should be displayed on the slider.

        Parameters
        ----------
        checked : bool
        """
        self._show_limit_labels = checked
        if checked:
            self.low_lim_label.show()
            self.high_lim_label.show()
        else:
            self.low_lim_label.hide()
            self.high_lim_label.hide()

    @Property(bool)
    def showValueLabel(self):
        """
        Whether or not the current value should be displayed on the slider.

        Returns
        -------
        bool
        """
        return self._show_value_label

    @showValueLabel.setter
    def showValueLabel(self, checked):
        """
        Whether or not the current value should be displayed on the slider.

        Parameters
        ----------
        checked : bool
        """
        self._show_value_label = checked
        if checked:
            self.value_label.show()
        else:
            self.value_label.hide()

    @Property(QSlider.TickPosition)
    def tickPosition(self):
        """
        Where to draw tick marks for the slider.

        Returns
        -------
        QSlider.TickPosition
        """
        return self._slider.tickPosition()

    @tickPosition.setter
    def tickPosition(self, position):
        """
        Where to draw tick marks for the slider.

        Parameter
        ---------
        position : QSlider.TickPosition
        """
        self._slider.setTickPosition(position)

    @Property(bool)
    def userDefinedLimits(self):
        """
        Wether or not to use limits defined by the user and not from the
        channel

        Returns
        -------
        bool
        """
        return self._user_defined_limits

    @userDefinedLimits.setter
    def userDefinedLimits(self, user_defined_limits):
        """
        Wether or not to use limits defined by the user and not from the
        channel

        Parameters
        ----------
        user_defined_limits : bool
        """
        self._user_defined_limits = user_defined_limits
        self.reset_slider_limits()

    @Property(float)
    def userMinimum(self):
        """
        Lower user defined limit value

        Returns
        -------
        float
        """
        return self._user_minimum

    @userMinimum.setter
    def userMinimum(self, new_min):
        """
        Lower user defined limit value

        Parameters
        ----------
        new_min : float
        """
        self._user_minimum = float(new_min) if new_min is not None else None
        if self.userDefinedLimits:
            self.reset_slider_limits()

    @Property(float)
    def userMaximum(self):
        """
        Upper user defined limit value

        Returns
        -------
        float
        """
        return self._user_maximum

    @userMaximum.setter
    def userMaximum(self, new_max):
        """
        Upper user defined limit value

        Parameters
        ----------
        new_max : float
        """
        self._user_maximum = float(new_max) if new_max is not None else None
        if self.userDefinedLimits:
            self.reset_slider_limits()

    @property
    def minimum(self):
        """
        The current value being used for the lower limit

        Returns
        -------
        float
        """
        if self.userDefinedLimits:
            return self._user_minimum
        return self._lower_ctrl_limit

    @property
    def maximum(self):
        """
        The current value being used for the upper limit

        Returns
        -------
        float
        """
        if self.userDefinedLimits:
            return self._user_maximum
        return self._upper_ctrl_limit

    @Property(int)
    def num_steps(self):
        """
        The number of steps on the slider

        Returns
        -------
        int
        """
        return self._num_steps

    @num_steps.setter
    def num_steps(self, new_steps):
        """
        The number of steps on the slider

        Parameters
        ----------
        new_steps : int
        """
        self._num_steps = int(new_steps)
        self.reset_slider_limits()