class PlotMainWindow(QWidget):
"""Base class for plot main windows."""
def __init__(self, U, plot, length=1, title=None):
super().__init__()
layout = QVBoxLayout()
if title:
title = QLabel('<b>' + title + '</b>')
title.setAlignment(Qt.AlignHCenter)
layout.addWidget(title)
layout.addWidget(plot)
plot.set(U, 0)
if length > 1:
hlayout = QHBoxLayout()
self.slider = QSlider(Qt.Horizontal)
self.slider.setMinimum(0)
self.slider.setMaximum(length - 1)
self.slider.setTickPosition(QSlider.TicksBelow)
hlayout.addWidget(self.slider)
lcd = QLCDNumber(m.ceil(m.log10(length)))
lcd.setDecMode()
lcd.setSegmentStyle(QLCDNumber.Flat)
hlayout.addWidget(lcd)
layout.addLayout(hlayout)
hlayout = QHBoxLayout()
toolbar = QToolBar()
self.a_play = QAction(
self.style().standardIcon(QStyle.SP_MediaPlay), 'Play',
self)
self.a_play.setCheckable(True)
self.a_rewind = QAction(
self.style().standardIcon(QStyle.SP_MediaSeekBackward),
'Rewind', self)
self.a_toend = QAction(
self.style().standardIcon(QStyle.SP_MediaSeekForward),
'End', self)
self.a_step_backward = QAction(
self.style().standardIcon(QStyle.SP_MediaSkipBackward),
'Step Back', self)
self.a_step_forward = QAction(
self.style().standardIcon(QStyle.SP_MediaSkipForward),
'Step', self)
self.a_loop = QAction(
self.style().standardIcon(QStyle.SP_BrowserReload), 'Loop',
self)
self.a_loop.setCheckable(True)
toolbar.addAction(self.a_play)
toolbar.addAction(self.a_rewind)
toolbar.addAction(self.a_toend)
toolbar.addAction(self.a_step_backward)
toolbar.addAction(self.a_step_forward)
toolbar.addAction(self.a_loop)
if hasattr(self, 'save'):
self.a_save = QAction(
self.style().standardIcon(QStyle.SP_DialogSaveButton),
'Save', self)
toolbar.addAction(self.a_save)
self.a_save.triggered.connect(self.save)
hlayout.addWidget(toolbar)
self.speed = QSlider(Qt.Horizontal)
self.speed.setMinimum(0)
self.speed.setMaximum(100)
hlayout.addWidget(QLabel('Speed:'))
hlayout.addWidget(self.speed)
layout.addLayout(hlayout)
self.timer = QTimer()
self.timer.timeout.connect(self.update_solution)
self.slider.valueChanged.connect(self.slider_changed)
self.slider.valueChanged.connect(lcd.display)
self.speed.valueChanged.connect(self.speed_changed)
self.a_play.toggled.connect(self.toggle_play)
self.a_rewind.triggered.connect(self.rewind)
self.a_toend.triggered.connect(self.to_end)
self.a_step_forward.triggered.connect(self.step_forward)
self.a_step_backward.triggered.connect(self.step_backward)
self.speed.setValue(50)
elif hasattr(self, 'save'):
hlayout = QHBoxLayout()
toolbar = QToolBar()
self.a_save = QAction(
self.style().standardIcon(QStyle.SP_DialogSaveButton),
'Save', self)
toolbar.addAction(self.a_save)
hlayout.addWidget(toolbar)
layout.addLayout(hlayout)
self.a_save.triggered.connect(self.save)
self.setLayout(layout)
self.plot = plot
self.U = U
self.length = length
def slider_changed(self, ind):
self.plot.set(self.U, ind)
def speed_changed(self, val):
self.timer.setInterval(val * 20)
def update_solution(self):
ind = self.slider.value() + 1
if ind >= self.length:
if self.a_loop.isChecked():
ind = 0
else:
self.a_play.setChecked(False)
return
self.slider.setValue(ind)
def toggle_play(self, checked):
if checked:
if self.slider.value() + 1 == self.length:
self.slider.setValue(0)
self.timer.start()
else:
self.timer.stop()
def rewind(self):
self.slider.setValue(0)
def to_end(self):
self.a_play.setChecked(False)
self.slider.setValue(self.length - 1)
def step_forward(self):
self.a_play.setChecked(False)
ind = self.slider.value() + 1
if ind == self.length and self.a_loop.isChecked():
ind = 0
if ind < self.length:
self.slider.setValue(ind)
def step_backward(self):
self.a_play.setChecked(False)
ind = self.slider.value() - 1
if ind == -1 and self.a_loop.isChecked():
ind = self.length - 1
if ind >= 0:
self.slider.setValue(ind)
class PlotMainWindow(QWidget):
"""Base class for plot main windows."""
def __init__(self, U, plot, length=1, title=None):
super().__init__()
layout = QVBoxLayout()
if title:
title = QLabel('<b>' + title + '</b>')
title.setAlignment(Qt.AlignHCenter)
layout.addWidget(title)
layout.addWidget(plot)
plot.set(U, 0)
if length > 1:
hlayout = QHBoxLayout()
self.slider = QSlider(Qt.Horizontal)
self.slider.setMinimum(0)
self.slider.setMaximum(length - 1)
self.slider.setTickPosition(QSlider.TicksBelow)
hlayout.addWidget(self.slider)
lcd = QLCDNumber(m.ceil(m.log10(length)))
lcd.setDecMode()
lcd.setSegmentStyle(QLCDNumber.Flat)
hlayout.addWidget(lcd)
layout.addLayout(hlayout)
hlayout = QHBoxLayout()
toolbar = QToolBar()
self.a_play = QAction(self.style().standardIcon(QStyle.SP_MediaPlay), 'Play', self)
self.a_play.setCheckable(True)
self.a_rewind = QAction(self.style().standardIcon(QStyle.SP_MediaSeekBackward), 'Rewind', self)
self.a_toend = QAction(self.style().standardIcon(QStyle.SP_MediaSeekForward), 'End', self)
self.a_step_backward = QAction(self.style().standardIcon(QStyle.SP_MediaSkipBackward),
'Step Back', self)
self.a_step_forward = QAction(self.style().standardIcon(QStyle.SP_MediaSkipForward), 'Step', self)
self.a_loop = QAction(self.style().standardIcon(QStyle.SP_BrowserReload), 'Loop', self)
self.a_loop.setCheckable(True)
toolbar.addAction(self.a_play)
toolbar.addAction(self.a_rewind)
toolbar.addAction(self.a_toend)
toolbar.addAction(self.a_step_backward)
toolbar.addAction(self.a_step_forward)
toolbar.addAction(self.a_loop)
if hasattr(self, 'save'):
self.a_save = QAction(self.style().standardIcon(QStyle.SP_DialogSaveButton), 'Save', self)
toolbar.addAction(self.a_save)
self.a_save.triggered.connect(self.save)
hlayout.addWidget(toolbar)
self.speed = QSlider(Qt.Horizontal)
self.speed.setMinimum(0)
self.speed.setMaximum(100)
hlayout.addWidget(QLabel('Speed:'))
hlayout.addWidget(self.speed)
layout.addLayout(hlayout)
self.timer = QTimer()
self.timer.timeout.connect(self.update_solution)
self.slider.valueChanged.connect(self.slider_changed)
self.slider.valueChanged.connect(lcd.display)
self.speed.valueChanged.connect(self.speed_changed)
self.a_play.toggled.connect(self.toggle_play)
self.a_rewind.triggered.connect(self.rewind)
self.a_toend.triggered.connect(self.to_end)
self.a_step_forward.triggered.connect(self.step_forward)
self.a_step_backward.triggered.connect(self.step_backward)
self.speed.setValue(50)
elif hasattr(self, 'save'):
hlayout = QHBoxLayout()
toolbar = QToolBar()
self.a_save = QAction(self.style().standardIcon(QStyle.SP_DialogSaveButton), 'Save', self)
toolbar.addAction(self.a_save)
hlayout.addWidget(toolbar)
layout.addLayout(hlayout)
self.a_save.triggered.connect(self.save)
self.setLayout(layout)
self.plot = plot
self.U = U
self.length = length
def slider_changed(self, ind):
self.plot.set(self.U, ind)
def speed_changed(self, val):
self.timer.setInterval(val * 20)
def update_solution(self):
ind = self.slider.value() + 1
if ind >= self.length:
if self.a_loop.isChecked():
ind = 0
else:
self.a_play.setChecked(False)
return
self.slider.setValue(ind)
def toggle_play(self, checked):
if checked:
if self.slider.value() + 1 == self.length:
self.slider.setValue(0)
self.timer.start()
else:
self.timer.stop()
def rewind(self):
self.slider.setValue(0)
def to_end(self):
self.a_play.setChecked(False)
self.slider.setValue(self.length - 1)
def step_forward(self):
self.a_play.setChecked(False)
ind = self.slider.value() + 1
if ind == self.length and self.a_loop.isChecked():
ind = 0
if ind < self.length:
self.slider.setValue(ind)
def step_backward(self):
self.a_play.setChecked(False)
ind = self.slider.value() - 1
if ind == -1 and self.a_loop.isChecked():
ind = self.length - 1
if ind >= 0:
self.slider.setValue(ind)
class View(QFrame):
graphicsView = None
label = None
label2 = None
selectModeButton = None
dragModeButton = None
openGlButton = None
antialiasButton = None
resetButton = None
zoomSlider = None
rotateSlider = None
def __init__(self, name, parent=None):
super(View, self).__init__(parent)
self.init_ui(name)
def init_ui(self, name):
self.setFrameStyle(QFrame.Sunken | QFrame.StyledPanel)
self.graphicsView = GraphicsView(self)
self.graphicsView.setRenderHint(QPainter.Antialiasing, False)
self.graphicsView.setDragMode(QGraphicsView.RubberBandDrag)
self.graphicsView.setOptimizationFlags(QGraphicsView.DontSavePainterState)
self.graphicsView.setViewportUpdateMode(QGraphicsView.SmartViewportUpdate)
self.graphicsView.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)
size = self.style().pixelMetric(QStyle.PM_ToolBarIconSize)
iconSize = QSize(size, size)
zoomInIcon = QToolButton()
zoomInIcon.setAutoRepeat(True)
zoomInIcon.setAutoRepeatInterval(33)
zoomInIcon.setAutoRepeatDelay(0)
zoomInIcon.setIcon(QIcon(":/zoomin.png"))
zoomInIcon.setIconSize(iconSize)
zoomOutIcon = QToolButton()
zoomOutIcon.setAutoRepeat(True)
zoomOutIcon.setAutoRepeatInterval(33)
zoomOutIcon.setAutoRepeatDelay(0)
zoomOutIcon.setIcon(QIcon(":/zoomout.png"))
zoomOutIcon.setIconSize(iconSize)
self.zoomSlider = QSlider()
self.zoomSlider.setMinimum(0)
self.zoomSlider.setMaximum(500)
self.zoomSlider.setValue(250)
self.zoomSlider.setTickPosition(QSlider.TicksRight)
# Zoom slider layout
zoomSliderLayout = QVBoxLayout()
zoomSliderLayout.addWidget(zoomInIcon)
zoomSliderLayout.addWidget(self.zoomSlider)
zoomSliderLayout.addWidget(zoomOutIcon)
rotateLeftIcon = QToolButton()
rotateLeftIcon.setIcon(QIcon(":/rotateleft.png"))
rotateLeftIcon.setIconSize(iconSize)
rotateRightIcon = QToolButton()
rotateRightIcon.setIcon(QIcon(":/rotateright.png"))
rotateRightIcon.setIconSize(iconSize)
self.rotateSlider = QSlider()
self.rotateSlider.setOrientation(Qt.Horizontal)
self.rotateSlider.setMinimum(-360)
self.rotateSlider.setMaximum(360)
self.rotateSlider.setValue(0)
self.rotateSlider.setTickPosition(QSlider.TicksBelow)
# Rotate slider layout
rotateSliderLayout = QHBoxLayout()
rotateSliderLayout.addWidget(rotateLeftIcon)
rotateSliderLayout.addWidget(self.rotateSlider)
rotateSliderLayout.addWidget(rotateRightIcon)
self.resetButton = QToolButton()
self.resetButton.setText("0")
self.resetButton.setEnabled(False)
# Label layout
labelLayout = QHBoxLayout()
self.label = QLabel(name)
self.label2 = QLabel("Pointer Mode")
self.selectModeButton = QToolButton()
self.selectModeButton.setText("Select")
self.selectModeButton.setCheckable(True)
self.selectModeButton.setChecked(True)
self.dragModeButton = QToolButton()
self.dragModeButton.setText("Drag")
self.dragModeButton.setCheckable(True)
self.dragModeButton.setChecked(False)
self.antialiasButton = QToolButton()
self.antialiasButton.setText("Antialiasing")
self.antialiasButton.setCheckable(True)
self.antialiasButton.setChecked(False)
self.openGlButton = QToolButton()
self.openGlButton.setText("OpenGL")
self.openGlButton.setCheckable(True)
self.openGlButton.setEnabled(QGLFormat.hasOpenGL())
pointerModeGroup = QButtonGroup()
pointerModeGroup.setExclusive(True)
pointerModeGroup.addButton(self.selectModeButton)
pointerModeGroup.addButton(self.dragModeButton)
labelLayout.addWidget(self.label)
labelLayout.addStretch()
labelLayout.addWidget(self.label2)
labelLayout.addWidget(self.selectModeButton)
labelLayout.addWidget(self.dragModeButton)
labelLayout.addStretch()
labelLayout.addWidget(self.antialiasButton)
labelLayout.addWidget(self.openGlButton)
topLayout = QGridLayout()
topLayout.addLayout(labelLayout, 0, 0)
topLayout.addWidget(self.graphicsView, 1, 0)
topLayout.addLayout(zoomSliderLayout, 1, 1)
topLayout.addLayout(rotateSliderLayout, 2, 0)
topLayout.addWidget(self.resetButton, 2, 1)
self.setLayout(topLayout)
self.resetButton.clicked.connect(self.resetView)
self.zoomSlider.valueChanged.connect(self.setupTransform)
self.rotateSlider.valueChanged.connect(self.setupTransform)
self.graphicsView.verticalScrollBar().valueChanged.connect(self.setResetButtonEnabled)
self.graphicsView.horizontalScrollBar().valueChanged.connect(self.setResetButtonEnabled)
self.selectModeButton.toggled.connect(self.togglePointerMode)
self.dragModeButton.toggled.connect(self.togglePointerMode)
self.antialiasButton.toggled.connect(self.toggleAntialiasing)
self.openGlButton.toggled.connect(self.toggleOpenGL)
rotateLeftIcon.clicked.connect(self.rotateLeft)
rotateRightIcon.clicked.connect(self.rotateRight)
zoomInIcon.clicked.connect(self.zoomIn)
zoomOutIcon.clicked.connect(self.zoomOut)
self.setupTransform()
def view(self):
return self.graphicsView
@Slot()
def zoomIn(self):
self.zoomSlider.setValue(self.zoomSlider.value() + 1)
@Slot()
def zoomOut(self):
self.zoomSlider.setValue(self.zoomSlider.value() - 1)
@Slot()
def resetView(self):
self.zoomSlider.setValue(250)
self.rotateSlider.setValue(0)
self.setupTransform()
self.graphicsView.ensureVisible(QRectF(0, 0, 0, 0))
self.resetButton.setEnabled(False)
@Slot()
def setResetButtonEnabled(self):
self.resetButton.setEnabled(True)
@Slot()
def setupTransform(self):
scale = pow(2.0, (self.zoomSlider.value() - 250) / 50.0)
trans = QTransform()
trans.scale(scale, scale)
trans.rotate(self.rotateSlider.value())
self.graphicsView.setTransform(trans)
self.setResetButtonEnabled()
@Slot()
def togglePointerMode(self):
self.graphicsView.setDragMode(
QGraphicsView.RubberBandDrag if self.selectModeButton.isChecked() else QGraphicsView.ScrollHandDrag)
self.graphicsView.setInteractive(self.selectModeButton.isChecked())
@Slot()
def toggleOpenGL(self):
self.graphicsView.setViewport(
QGLWidget(QGLFormat(QGL.SampleBuffers)) if self.openGlButton.isChecked() else QWidget())
@Slot()
def toggleAntialiasing(self):
self.graphicsView.setRenderHint(QPainter.Antialiasing, self.antialiasButton.isChecked())
@Slot()
def rotateLeft(self):
self.rotateSlider.setValue(self.rotateSlider.value() - 10)
@Slot()
def rotateRight(self):
self.rotateSlider.setValue(self.rotateSlider.value() + 10)