Beispiel #1
0
class WayPoint:
    def __init__(self, **kwargs):
        super().__init__()
        self.location = MapPoint()
        self.__dict__.update(kwargs)

        self.pixmap = QGraphicsPixmapItem(
            QPixmap('HOME_DIR + /nparse/data/maps/waypoint.png'))
        self.pixmap.setOffset(-10, -20)

        self.line = QGraphicsLineItem(0.0, 0.0, self.location.x,
                                      self.location.y)
        self.line.setPen(QPen(Qt.green, 1, Qt.DashLine))
        self.line.setVisible(False)

        self.pixmap.setZValue(5)
        self.line.setZValue(4)

        self.pixmap.setPos(self.location.x, self.location.y)

    def update_(self, scale, location=None):
        self.pixmap.setScale(scale)
        if location:
            line = self.line.line()
            line.setP1(QPointF(location.x, location.y))
            self.line.setLine(line)

            pen = self.line.pen()
            pen.setWidth(1 / scale)
            self.line.setPen(pen)

            self.line.setVisible(True)
Beispiel #2
0
class ImageViewer(QGraphicsView, QObject):
    points_selection_sgn = pyqtSignal(list)
    key_press_sgn = pyqtSignal(QtGui.QKeyEvent)

    def __init__(self, parent=None):
        super(ImageViewer, self).__init__(parent)
        self.setDragMode(QGraphicsView.ScrollHandDrag)
        self.setRenderHints(QPainter.Antialiasing
                            | QPainter.SmoothPixmapTransform)
        self.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)
        self.setResizeAnchor(QGraphicsView.AnchorUnderMouse)
        self.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
        self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)

        self._scene = ImageViewerScene(self)
        self.setScene(self._scene)
        self._image = None
        self._image_original = None
        self._pixmap = None
        self._img_contrast = 1.0
        self._img_brightness = 50.0
        self._img_gamma = 1.0
        self._create_grid()
        self._channels = []
        self._current_tool = SELECTION_TOOL.POINTER
        self._dataset = None

        # create grid lines
        pen_color = QColor(255, 255, 255, 255)
        pen = QPen(pen_color)
        pen.setWidth(2)
        pen.setStyle(QtCore.Qt.DotLine)
        self.vline = QGraphicsLineItem()
        self.vline.setVisible(False)
        self.vline.setPen(pen)
        self.hline = QGraphicsLineItem()
        self.hline.setVisible(False)
        self.hline.setPen(pen)
        self._scene.addItem(self.vline)
        self._scene.addItem(self.hline)
        self._current_label = None

        # rectangle selection tool
        self._rectangle_tool_origin = QPoint()
        self._rectangle_tool_picker = QRubberBand(QRubberBand.Rectangle, self)

        # polygon selection tool
        app = QApplication.instance()
        color = app.palette().color(QPalette.Highlight)
        self._polygon_guide_line_pen = QPen(color)
        self._polygon_guide_line_pen.setWidth(3)
        self._polygon_guide_line_pen.setStyle(QtCore.Qt.DotLine)
        self._polygon_guide_line = QGraphicsLineItem()
        self._polygon_guide_line.setVisible(False)
        self._polygon_guide_line.setPen(self._polygon_guide_line_pen)
        self._scene.addItem(self._polygon_guide_line)
        self._current_polygon = None

        # circle
        self._current_ellipse = None

        # free selection tool
        self._current_free_path = None
        self._is_drawing = False
        self._last_point_drawn = QPoint()
        self._last_click_point = None
        self._free_Path_pen = QPen(color)
        self._free_Path_pen.setWidth(10)

        self._extreme_points = Queue(maxsize=4)

    @property
    def current_label(self):
        return self._current_label

    @current_label.setter
    def current_label(self, value):
        self._current_label = value
        if self._current_label:
            color = QColor(self._current_label.color)
            self._free_Path_pen.setColor(color)
            self._polygon_guide_line_pen.setColor(color)
            self._polygon_guide_line.setPen(self._polygon_guide_line_pen)

    @property
    def dataset(self):
        return self._dataset

    @dataset.setter
    def dataset(self, value):
        self._dataset = value

    @property
    def img_contrast(self):
        return self._img_contrast

    @img_contrast.setter
    def img_contrast(self, value):
        self._img_contrast = value

    @property
    def img_gamma(self):
        return self._img_gamma

    @img_gamma.setter
    def img_gamma(self, value):
        self._img_gamma = value

    @property
    def img_brightness(self):
        return self._img_brightness

    @img_brightness.setter
    def img_brightness(self, value):
        self._img_brightness = value

    @property
    def image(self):
        return self._image

    @image.setter
    def image(self, value):
        self._image = value
        self._image_original = value.copy()
        self.update_viewer()

    @property
    def pixmap(self) -> ImagePixmap:
        return self._pixmap

    @gui_exception
    def update_viewer(self, fit_image=True):
        rgb = cv2.cvtColor(self._image, cv2.COLOR_BGR2RGB)
        rgb = ImageUtilities.adjust_image(rgb, self._img_contrast,
                                          self._img_brightness)
        rgb = ImageUtilities.adjust_gamma(rgb, self._img_gamma)
        pil_image = Image.fromarray(rgb)
        qppixmap_image = pil_image.toqpixmap()
        x, y = -qppixmap_image.width() / 2, -qppixmap_image.height() / 2

        if self._pixmap:
            self._pixmap.resetTransform()
            self._pixmap.setPixmap(qppixmap_image)
            self._pixmap.setOffset(x, y)
        else:
            self._pixmap = ImagePixmap()
            self._pixmap.setPixmap(qppixmap_image)
            self._pixmap.setOffset(x, y)
            self._scene.addItem(self._pixmap)
            self._pixmap.signals.hoverEnterEventSgn.connect(
                self.pixmap_hoverEnterEvent_slot)
            self._pixmap.signals.hoverLeaveEventSgn.connect(
                self.pixmap_hoverLeaveEvent_slot)
            self._pixmap.signals.hoverMoveEventSgn.connect(
                self.pixmap_hoverMoveEvent_slot)
        self._hide_guide_lines()
        if fit_image:
            self.fit_to_window()

    @gui_exception
    def reset_viewer(self):
        self._img_contrast = 1.0
        self._img_brightness = 50.0
        self._img_gamma = 1.0
        self._image = self._image_original.copy()

    @gui_exception
    def equalize_histogram(self):
        self._image = ImageUtilities.histogram_equalization(self._image)

    @gui_exception
    def correct_lightness(self):
        self._image = ImageUtilities.correct_lightness(self._image)

    def clusterize(self, k):
        self._image = ImageUtilities.kmeans(self._image.copy(), k)

    @property
    def current_tool(self):
        return self._current_tool

    @current_tool.setter
    def current_tool(self, value):
        self._polygon_guide_line.hide()
        self._current_polygon = None
        self._current_free_path = None
        self._current_ellipse = None
        self._is_drawing = value == SELECTION_TOOL.FREE
        self._current_tool = value
        self.clear_extreme_points()
        if value == SELECTION_TOOL.POINTER:
            self.enable_items(True)
        else:
            self.enable_items(False)

    def fit_to_window(self):
        if not self._pixmap or not self._pixmap.pixmap():
            return
        self.resetTransform()
        self.setTransform(QtGui.QTransform())
        self.fitInView(self._pixmap, QtCore.Qt.KeepAspectRatio)

    def _create_grid(self, gridSize=15):
        app: QApplication = QApplication.instance()
        curr_theme = "dark"
        if app:
            curr_theme = app.property("theme")
        if curr_theme == "light":
            color1 = QtGui.QColor("white")
            color2 = QtGui.QColor(237, 237, 237)
        else:
            color1 = QtGui.QColor(20, 20, 20)
            color2 = QtGui.QColor(0, 0, 0)
        backgroundPixmap = QtGui.QPixmap(gridSize * 2, gridSize * 2)
        backgroundPixmap.fill(color1)
        painter = QtGui.QPainter(backgroundPixmap)
        painter.fillRect(0, 0, gridSize, gridSize, color2)
        painter.fillRect(gridSize, gridSize, gridSize, gridSize, color2)
        painter.end()
        self._scene.setBackgroundBrush(QtGui.QBrush(backgroundPixmap))

    def wheelEvent(self, event: QWheelEvent):
        adj = (event.angleDelta().y() / 120) * 0.1
        self.scale(1 + adj, 1 + adj)

    @gui_exception
    def keyPressEvent(self, event: QKeyEvent):
        if event.key() == QtCore.Qt.Key_Space:
            image_rect: QRectF = self._pixmap.sceneBoundingRect()
            if self.current_tool == SELECTION_TOOL.POLYGON and self._current_polygon:
                points = self._current_polygon.points
                self._polygon_guide_line.hide()
                self.setDragMode(QGraphicsView.ScrollHandDrag)
                if len(points) <= 2:
                    self._current_polygon.delete_item()
                self.current_tool = SELECTION_TOOL.POINTER
            elif self.current_tool == SELECTION_TOOL.EXTREME_POINTS and \
                    self._extreme_points.full():
                points = []
                image_offset = QPointF(image_rect.width() / 2,
                                       image_rect.height() / 2)
                for pt in self._extreme_points.queue:
                    pt: EditablePolygonPoint
                    center = pt.sceneBoundingRect().center()
                    x = math.floor(center.x() + image_offset.x())
                    y = math.floor(center.y() + image_offset.y())
                    points.append([x, y])
                self.points_selection_sgn.emit(points)
                self.current_tool = SELECTION_TOOL.POINTER
        else:
            event.ignore()

    # guide lines events
    def _show_guide_lines(self):
        if self.hline and self.vline:
            self.hline.show()
            self.vline.show()

    def _hide_guide_lines(self):
        if self.hline and self.vline:
            self.hline.hide()
            self.vline.hide()

    def _update_guide_lines(self, x, y):
        bbox: QRect = self._pixmap.boundingRect()
        offset = QPointF(bbox.width() / 2, bbox.height() / 2)
        self.vline.setLine(x, -offset.y(), x, bbox.height() - offset.y())
        self.vline.setZValue(1)
        self.hline.setLine(-offset.x(), y, bbox.width() - offset.x(), y)
        self.hline.setZValue(1)

    def pixmap_hoverMoveEvent_slot(self, evt: QGraphicsSceneHoverEvent, x, y):
        self._update_guide_lines(x, y)

    def pixmap_hoverEnterEvent_slot(self):
        self._show_guide_lines()

    def pixmap_hoverLeaveEvent_slot(self):
        self._hide_guide_lines()

    def delete_polygon_slot(self, polygon: EditablePolygon):
        self._current_polygon = None
        self.current_tool = SELECTION_TOOL.POINTER
        self._polygon_guide_line.hide()

    @gui_exception
    def mousePressEvent(self, evt: QtGui.QMouseEvent) -> None:
        image_rect: QRectF = self._pixmap.boundingRect()
        mouse_pos = self.mapToScene(evt.pos())
        if evt.buttons() == QtCore.Qt.LeftButton:
            if self.current_tool == SELECTION_TOOL.BOX:
                # create rectangle
                self.setDragMode(QGraphicsView.NoDrag)
                self._rectangle_tool_origin = evt.pos()
                geometry = QRect(self._rectangle_tool_origin, QSize())
                self._rectangle_tool_picker.setGeometry(geometry)
                self._rectangle_tool_picker.show()
            elif self.current_tool == SELECTION_TOOL.POLYGON:
                if image_rect.contains(mouse_pos):
                    if self._current_polygon is None:
                        self._current_polygon = EditablePolygon()
                        self._current_polygon.label = self._current_label
                        self._current_polygon.tag = self._dataset
                        self._current_polygon.signals.deleted.connect(
                            self.delete_polygon_slot)
                        self._scene.addItem(self._current_polygon)
                        self._current_polygon.addPoint(mouse_pos)
                    else:
                        self._current_polygon.addPoint(mouse_pos)
            elif self.current_tool == SELECTION_TOOL.ELLIPSE:
                if image_rect.contains(mouse_pos):
                    self.setDragMode(QGraphicsView.NoDrag)
                    ellipse_rec = QtCore.QRectF(mouse_pos.x(), mouse_pos.y(),
                                                0, 0)
                    self._current_ellipse = EditableEllipse()
                    self._current_ellipse.tag = self.dataset
                    self._current_ellipse.label = self._current_label
                    self._current_ellipse.setRect(ellipse_rec)
                    self._scene.addItem(self._current_ellipse)

            elif self.current_tool == SELECTION_TOOL.FREE:
                # consider only the points into the image
                if image_rect.contains(mouse_pos):
                    self.setDragMode(QGraphicsView.NoDrag)
                    self._last_point_drawn = mouse_pos
                    self._current_free_path = QGraphicsPathItem()
                    self._current_free_path.setOpacity(0.6)
                    self._current_free_path.setPen(self._free_Path_pen)
                    painter = QPainterPath()
                    painter.moveTo(self._last_point_drawn)
                    self._current_free_path.setPath(painter)
                    self._scene.addItem(self._current_free_path)

            elif self.current_tool == SELECTION_TOOL.EXTREME_POINTS:
                if image_rect.contains(mouse_pos):
                    if not self._extreme_points.full():

                        def delete_point(idx):
                            del self._extreme_points.queue[idx]

                        idx = self._extreme_points.qsize()
                        editable_pt = EditablePolygonPoint(idx)
                        editable_pt.signals.deleted.connect(delete_point)
                        editable_pt.setPos(mouse_pos)
                        self._scene.addItem(editable_pt)
                        self._extreme_points.put(editable_pt)

        else:
            self.setDragMode(QGraphicsView.ScrollHandDrag)
        super(ImageViewer, self).mousePressEvent(evt)

    @gui_exception
    def mouseMoveEvent(self, evt: QtGui.QMouseEvent) -> None:
        mouse_pos = self.mapToScene(evt.pos())
        image_rect: QRectF = self._pixmap.boundingRect()
        if self.current_tool == SELECTION_TOOL.BOX:
            if not self._rectangle_tool_origin.isNull():
                geometry = QRect(self._rectangle_tool_origin,
                                 evt.pos()).normalized()
                self._rectangle_tool_picker.setGeometry(geometry)
        elif self.current_tool == SELECTION_TOOL.POLYGON:
            if self._current_polygon and image_rect.contains(mouse_pos):
                if self._current_polygon.count > 0:
                    last_point: QPointF = self._current_polygon.last_point
                    self._polygon_guide_line.setZValue(1)
                    self._polygon_guide_line.show()
                    mouse_pos = self.mapToScene(evt.pos())
                    self._polygon_guide_line.setLine(last_point.x(),
                                                     last_point.y(),
                                                     mouse_pos.x(),
                                                     mouse_pos.y())
            else:
                self._polygon_guide_line.hide()
        elif self.current_tool == SELECTION_TOOL.ELLIPSE:
            if self._current_ellipse and image_rect.contains(mouse_pos):
                ellipse_rect = self._current_ellipse.rect()
                ellipse_pos = QPointF(ellipse_rect.x(), ellipse_rect.y())
                distance = math.hypot(mouse_pos.x() - ellipse_pos.x(),
                                      mouse_pos.y() - ellipse_pos.y())
                ellipse_rect.setWidth(distance)
                ellipse_rect.setHeight(distance)
                self._current_ellipse.setRect(ellipse_rect)
        elif self.current_tool == SELECTION_TOOL.FREE and evt.buttons(
        ) and QtCore.Qt.LeftButton:
            if self._current_free_path and image_rect.contains(mouse_pos):
                painter: QPainterPath = self._current_free_path.path()
                self._last_point_drawn = self.mapToScene(evt.pos())
                painter.lineTo(self._last_point_drawn)
                self._current_free_path.setPath(painter)
        super(ImageViewer, self).mouseMoveEvent(evt)

    @gui_exception
    def mouseReleaseEvent(self, evt: QtGui.QMouseEvent) -> None:
        image_rect: QRectF = self._pixmap.boundingRect()
        if self.current_tool == SELECTION_TOOL.BOX:
            roi: QRect = self._rectangle_tool_picker.geometry()
            roi: QRectF = self.mapToScene(roi).boundingRect()
            self._rectangle_tool_picker.hide()
            if image_rect == roi.united(image_rect):
                rect = EditableBox(roi)
                rect.label = self.current_label
                rect.tag = self._dataset
                self._scene.addItem(rect)
                self.current_tool = SELECTION_TOOL.POINTER
                self.setDragMode(QGraphicsView.ScrollHandDrag)

        elif self.current_tool == SELECTION_TOOL.ELLIPSE and self._current_ellipse:
            roi: QRect = self._current_ellipse.boundingRect()
            if image_rect == roi.united(image_rect):
                self.current_tool = SELECTION_TOOL.POINTER
                self.setDragMode(QGraphicsView.ScrollHandDrag)
            else:
                self._current_ellipse.delete_item()
        elif self.current_tool == SELECTION_TOOL.FREE and self._current_free_path:
            # create polygon
            self._current_free_path: QGraphicsPathItem
            path_rect = self._current_free_path.boundingRect()
            if image_rect == path_rect.united(image_rect):
                path = self._current_free_path.path()
                path_polygon = EditablePolygon()
                path_polygon.tag = self.dataset
                path_polygon.label = self.current_label
                self._scene.addItem(path_polygon)
                for i in range(0, path.elementCount(), 10):
                    x, y = path.elementAt(i).x, path.elementAt(i).y
                    path_polygon.addPoint(QPointF(x, y))
            self._scene.removeItem(self._current_free_path)
            self.current_tool = SELECTION_TOOL.POINTER
            self.setDragMode(QGraphicsView.ScrollHandDrag)
        super(ImageViewer, self).mouseReleaseEvent(evt)

    def remove_annotations(self):
        for item in self._scene.items():
            if isinstance(item, EditableItem):
                item.delete_item()

    def remove_annotations_by_label(self, label_name):
        for item in self._scene.items():
            if isinstance(item, EditableItem):
                if item.label and item.label.name == label_name:
                    item.delete_item()

    def enable_items(self, value):
        for item in self._scene.items():
            if isinstance(item, EditableItem):
                item.setEnabled(value)

    def clear_extreme_points(self):
        if self._extreme_points.qsize() > 0:
            for pt in self._extreme_points.queue:
                self._scene.removeItem(pt)
            self._extreme_points.queue.clear()
Beispiel #3
0
class ImageViewer(QGraphicsView, QObject):
    def __init__(self, parent=None):
        super(ImageViewer, self).__init__(parent)
        self.setRenderHints(QPainter.Antialiasing
                            | QPainter.SmoothPixmapTransform)
        #self.setAlignment(QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
        self.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)
        self.setDragMode(QGraphicsView.ScrollHandDrag)
        #self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
        #self.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
        self._scene = ImageViewerScene(self)
        self.setScene(self._scene)
        self._create_grid()
        self._create_grid_lines()
        self._pixmap = None
        self._selection_mode = SELECTION_MODE.NONE

        # polygon selection
        _polygon_guide_line_pen = QPen(QtGui.QColor(235, 72, 40))
        _polygon_guide_line_pen.setWidth(2)
        _polygon_guide_line_pen.setStyle(QtCore.Qt.DotLine)
        self._polygon_guide_line = QGraphicsLineItem()
        self._polygon_guide_line.setVisible(False)
        self._polygon_guide_line.setPen(_polygon_guide_line_pen)
        self._scene.addItem(self._polygon_guide_line)
        self._current_polygon = None
        # rectangle selection
        self._box_origin = QPoint()
        self._box_picker = QRubberBand(QRubberBand.Rectangle, self)

        # free selection
        self._current_free_path = None
        self._is_drawing = False
        self._last_point_drawn = QPoint()
        self._current_label = None

    @property
    def current_label(self):
        return self._current_label

    @current_label.setter
    def current_label(self, value):
        self._current_label = value

    @property
    def pixmap(self) -> ImagePixmap:
        return self._pixmap

    @pixmap.setter
    def pixmap(self, value: QPixmap):
        self.selection_mode = SELECTION_MODE.NONE
        self.resetTransform()
        if self.pixmap:
            self._scene.removeItem(self._pixmap)
        self.remove_annotations()
        self._pixmap = ImagePixmap()
        self._pixmap.setPixmap(value)
        self._pixmap.setOffset(-value.width() / 2, -value.height() / 2)
        self._pixmap.setTransformationMode(QtCore.Qt.SmoothTransformation)
        self._pixmap.signals.hoverEnterEventSgn.connect(
            self.pixmap_hoverEnterEvent_slot)
        self._pixmap.signals.hoverLeaveEventSgn.connect(
            self.pixmap_hoverLeaveEvent_slot)
        self._pixmap.signals.hoverMoveEventSgn.connect(
            self.pixmap_hoverMoveEvent_slot)
        self._scene.addItem(self._pixmap)
        # rect=self._scene.addRect(QtCore.QRectF(0,0,100,100), QtGui.QPen(QtGui.QColor("red")))
        # rect.setZValue(1.0)
        self.fit_to_window()

    @property
    def selection_mode(self):
        return self._selection_mode

    @selection_mode.setter
    def selection_mode(self, value):
        self._polygon_guide_line.hide()
        self._current_polygon = None
        self._current_free_path = None
        self._is_drawing = value == SELECTION_MODE.FREE
        if value == SELECTION_MODE.NONE:
            self.enable_items(True)
        else:
            self.enable_items(False)
        self._selection_mode = value

    def remove_annotations(self):
        for item in self._scene.items():
            if isinstance(item, EditableBox):
                self._scene.removeItem(item)
            elif isinstance(item, EditablePolygon):
                item.delete_polygon()

    def remove_annotations_by_label(self, label_name):
        for item in self._scene.items():
            if isinstance(item, EditableBox):
                if item.label and item.label.name == label_name:
                    self._scene.removeItem(item)
            elif isinstance(item, EditablePolygon):
                if item.label and item.label.name == label_name:
                    item.delete_polygon()

    def enable_items(self, value):
        for item in self._scene.items():
            if isinstance(item, EditablePolygon) or isinstance(
                    item, EditableBox):
                item.setEnabled(value)

    def _create_grid(self):
        gridSize = 15
        backgroundPixmap = QtGui.QPixmap(gridSize * 2, gridSize * 2)
        #backgroundPixmap.fill(QtGui.QColor("white"))
        backgroundPixmap.fill(QtGui.QColor(20, 20, 20))
        #backgroundPixmap.fill(QtGui.QColor("powderblue"))
        painter = QtGui.QPainter(backgroundPixmap)
        #backgroundColor=QtGui.QColor("palegoldenrod")
        #backgroundColor=QtGui.QColor(237,237,237)
        backgroundColor = QtGui.QColor(0, 0, 0)
        painter.fillRect(0, 0, gridSize, gridSize, backgroundColor)
        painter.fillRect(gridSize, gridSize, gridSize, gridSize,
                         backgroundColor)
        painter.end()
        self._scene.setBackgroundBrush(QtGui.QBrush(backgroundPixmap))

    def _create_grid_lines(self):
        pen_color = QColor(255, 255, 255, 255)
        pen = QPen(pen_color)
        pen.setWidth(2)
        pen.setStyle(QtCore.Qt.DotLine)
        self.vline = QGraphicsLineItem()
        self.vline.setVisible(False)
        self.vline.setPen(pen)
        self.hline = QGraphicsLineItem()
        self.hline.setVisible(False)
        self.hline.setPen(pen)
        self._scene.addItem(self.vline)
        self._scene.addItem(self.hline)

    def wheelEvent(self, event: QWheelEvent):
        adj = (event.angleDelta().y() / 120) * 0.1
        self.scale(1 + adj, 1 + adj)

    def fit_to_window(self):
        """Fit image within view."""
        if not self.pixmap or not self._pixmap.pixmap():
            return
        #self._pixmap.setTransformationMode(QtCore.Qt.SmoothTransformation)
        self.fitInView(self._pixmap, QtCore.Qt.KeepAspectRatio)

    def show_guide_lines(self):
        if self.hline and self.vline:
            self.hline.show()
            self.vline.show()

    def hide_guide_lines(self):
        if self.hline and self.vline:
            self.hline.hide()
            self.vline.hide()

    def pixmap_hoverEnterEvent_slot(self):
        self.show_guide_lines()

    def pixmap_hoverLeaveEvent_slot(self):
        self.hide_guide_lines()

    def pixmap_hoverMoveEvent_slot(self, evt: QGraphicsSceneHoverEvent, x, y):
        bbox: QRect = self._pixmap.boundingRect()
        offset = QPointF(bbox.width() / 2, bbox.height() / 2)
        self.vline.setLine(x, -offset.y(), x, bbox.height() - offset.y())
        self.vline.setZValue(1)
        self.hline.setLine(-offset.x(), y, bbox.width() - offset.x(), y)
        self.hline.setZValue(1)

    def mouseMoveEvent(self, evt: QtGui.QMouseEvent) -> None:
        if self.selection_mode == SELECTION_MODE.BOX:
            if not self._box_origin.isNull():
                self._box_picker.setGeometry(
                    QRect(self._box_origin, evt.pos()).normalized())
        elif self.selection_mode == SELECTION_MODE.POLYGON:
            if self._current_polygon:
                if self._current_polygon.count > 0:
                    last_point: QPointF = self._current_polygon.last_point
                    self._polygon_guide_line.setZValue(1)
                    self._polygon_guide_line.show()
                    mouse_pos = self.mapToScene(evt.pos())
                    self._polygon_guide_line.setLine(last_point.x(),
                                                     last_point.y(),
                                                     mouse_pos.x(),
                                                     mouse_pos.y())
            else:
                self._polygon_guide_line.hide()

        elif self.selection_mode == SELECTION_MODE.FREE and evt.buttons(
        ) and QtCore.Qt.LeftButton:
            if self._current_free_path:
                painter: QPainterPath = self._current_free_path.path()
                self._last_point_drawn = self.mapToScene(evt.pos())
                painter.lineTo(self._last_point_drawn)
                self._current_free_path.setPath(painter)

        super(ImageViewer, self).mouseMoveEvent(evt)

    def mousePressEvent(self, evt: QtGui.QMouseEvent) -> None:

        if evt.buttons() == QtCore.Qt.LeftButton:
            if self.selection_mode == SELECTION_MODE.BOX:
                self.setDragMode(QGraphicsView.NoDrag)
                self._box_origin = evt.pos()
                self._box_picker.setGeometry(QRect(self._box_origin, QSize()))
                self._box_picker.show()

            elif self._selection_mode == SELECTION_MODE.POLYGON:
                pixmap_rect: QRectF = self._pixmap.boundingRect()
                new_point = self.mapToScene(evt.pos())
                # consider only the points intothe image
                if pixmap_rect.contains(new_point):
                    if self._current_polygon is None:
                        self._current_polygon = EditablePolygon()
                        self._current_polygon.signals.deleted.connect(
                            self.delete_polygon_slot)
                        self._scene.addItem(self._current_polygon)
                        self._current_polygon.addPoint(new_point)
                    else:
                        self._current_polygon.addPoint(new_point)

            elif self._selection_mode == SELECTION_MODE.FREE:
                # start drawing
                new_point = self.mapToScene(evt.pos())
                pixmap_rect: QRectF = self._pixmap.boundingRect()
                # consider only the points intothe image
                if pixmap_rect.contains(new_point):
                    self.setDragMode(QGraphicsView.NoDrag)
                    pen = QPen(QtGui.QColor(235, 72, 40))
                    pen.setWidth(10)
                    self._last_point_drawn = new_point
                    self._current_free_path = QGraphicsPathItem()
                    self._current_free_path.setOpacity(0.6)
                    self._current_free_path.setPen(pen)
                    painter = QPainterPath()
                    painter.moveTo(self._last_point_drawn)
                    self._current_free_path.setPath(painter)
                    self._scene.addItem(self._current_free_path)
        else:
            self.setDragMode(QGraphicsView.ScrollHandDrag)

        super(ImageViewer, self).mousePressEvent(evt)

    def mouseReleaseEvent(self, evt: QtGui.QMouseEvent) -> None:
        if evt.button() == QtCore.Qt.LeftButton:
            if self.selection_mode == SELECTION_MODE.BOX:
                roi: QRect = self._box_picker.geometry()
                roi: QRectF = self.mapToScene(roi).boundingRect()
                pixmap_rect = self._pixmap.boundingRect()
                self._box_picker.hide()
                if pixmap_rect == roi.united(pixmap_rect):
                    rect = EditableBox(roi)
                    rect.label = self.current_label
                    self._scene.addItem(rect)
                    self.selection_mode = SELECTION_MODE.NONE
                    self.setDragMode(QGraphicsView.ScrollHandDrag)

            elif self.selection_mode == SELECTION_MODE.FREE and self._current_free_path:
                # create polygon
                self._current_free_path: QGraphicsPathItem
                path_rect = self._current_free_path.boundingRect()
                pixmap_rect = self._pixmap.boundingRect()
                if pixmap_rect == path_rect.united(pixmap_rect):
                    path = self._current_free_path.path()
                    path_polygon = EditablePolygon()
                    path_polygon.label = self.current_label
                    self._scene.addItem(path_polygon)
                    for i in range(0, path.elementCount(), 10):
                        x, y = path.elementAt(i).x, path.elementAt(i).y
                        path_polygon.addPoint(QPointF(x, y))
                self._scene.removeItem(self._current_free_path)
                self.selection_mode = SELECTION_MODE.NONE
                self.setDragMode(QGraphicsView.ScrollHandDrag)

        super(ImageViewer, self).mouseReleaseEvent(evt)

    def keyPressEvent(self, event: QtGui.QKeyEvent) -> None:
        if self._current_polygon and event.key() == QtCore.Qt.Key_Space:
            points = self._current_polygon.points
            self._current_polygon.label = self.current_label
            self._current_polygon = None
            self.selection_mode = SELECTION_MODE.NONE
            self._polygon_guide_line.hide()
            self.setDragMode(QGraphicsView.ScrollHandDrag)
        super(ImageViewer, self).keyPressEvent(event)

    def delete_polygon_slot(self, polygon: EditablePolygon):
        self._current_polygon = None
        self.selection_mode = SELECTION_MODE.NONE
        self._polygon_guide_line.hide()
Beispiel #4
0
class MonoScene(QGraphicsScene):
    def __init__(self):
        super().__init__()

        self.language = settings.LANG
        self.csv_separator = settings.CSV_SEPARATOR
        self.fmt_float = settings.FMT_FLOAT

        self.nodes = {}
        self.nb_nodes = 0
        self.adj_list = {}
        self.current_line = None
        self.current_port = None
        self.project_path = ''

        self.setSceneRect(
            QRectF(0, 0, settings.SCENE_SIZE[0], settings.SCENE_SIZE[1]))
        self.transform = QTransform()
        self.selectionChanged.connect(self.selection_changed)

        self._init_with_default_node()

    def reinit(self):
        self.clear()
        self._init_with_default_node()
        self.update()

    def _init_without_node(self):
        self.nodes = {}
        self.nb_nodes = 0
        self.adj_list = {}

    def _init_with_default_node(self):
        self._init_without_node()
        self.add_node(LoadSerafin2DNode(0), 50, 50)
        self._add_current_line()

    def _add_current_line(self):
        self.current_line = QGraphicsLineItem()
        self.addItem(self.current_line)
        self.current_line.setVisible(False)
        pen = QPen(QColor(0, 0, 0))
        pen.setWidth(2)
        self.current_line.setPen(pen)
        self.current_port = None

    def mousePressEvent(self, event):
        super().mousePressEvent(event)
        for node_index, node in enumerate(self.nodes.values()):
            for port_index, port in enumerate(node.ports):
                if port.isSelected():
                    self.current_port = (node_index, port_index)

    def mouseMoveEvent(self, event):
        super().mouseMoveEvent(event)
        if self.current_port is not None:
            port = self.nodes[self.current_port[0]].ports[self.current_port[1]]
            self.current_line.setLine(
                QLineF(port.mapToScene(port.rect().center()),
                       event.scenePos()))
            self.current_line.setVisible(True)

    def mouseReleaseEvent(self, event):
        if self.current_port is not None:
            target_item = self.itemAt(event.scenePos(), self.transform)
            if isinstance(target_item, Port):
                self._handle_add_link(target_item)
            self.current_line.setVisible(False)
            self.current_port = None
        super().mouseReleaseEvent(event)

    def mouseDoubleClickEvent(self, event):
        super().mouseDoubleClickEvent(event)
        target_item = self.itemAt(event.scenePos(), self.transform)
        if isinstance(target_item, Link):
            self._handle_remove_link(target_item)
        elif isinstance(target_item, Box):
            node = target_item.parentItem()
            node.configure()
            self.selection_changed()

    def keyPressEvent(self, event):
        if event.key() == Qt.Key_Delete:
            selected = self.selectedItems()
            if selected:
                link = selected[0]
                self._handle_remove_link(link)

    def selection_changed(self):
        view = self.views()[0]
        selected = self.selectedItems()
        if not selected:
            view.deselect_node()
            return
        selected = selected[0]
        if isinstance(selected, Node):
            view.select_node(selected)
        else:
            view.deselect_node()

    def add_node(self, node, x, y):
        logger.debug('Add node #%i %s' %
                     (node.index(), node.label.replace('\n', ' ')))
        self.addItem(node)
        self.nodes[node.index()] = node
        self.adj_list[node.index()] = set()
        self.nb_nodes += 1
        node.moveBy(x, y)

    def save(self):
        links = []
        for item in self.items():
            if isinstance(item, Link):
                links.append(item.save())

        yield '.'.join([self.language, self.csv_separator])
        yield '%d %d' % (self.nb_nodes, len(links))
        for node in self.nodes.values():
            yield node.save()

        for link in links:
            yield link

    def load(self, filename):
        logger.debug('Loading project in MONO: %s' % filename)
        self.project_path = filename
        self.clear()
        self._add_current_line()
        self._init_without_node()
        try:
            with open(filename, 'r') as f:
                self.language, self.csv_separator = f.readline().rstrip(
                ).split('.')
                nb_nodes, nb_links = map(int, f.readline().split())
                for _ in range(nb_nodes):
                    line = f.readline().rstrip().split('|')
                    category, name, index, x, y = line[:5]
                    node = NODES[category][name](int(index))
                    node.load(line[5:])
                    self.add_node(node, float(x), float(y))

                for _ in range(nb_links):
                    from_node_index, from_port_index, \
                                     to_node_index, to_port_index = map(int, f.readline().rstrip().split('|'))
                    from_node = self.nodes[from_node_index]
                    to_node = self.nodes[to_node_index]
                    from_port = from_node.ports[from_port_index]
                    to_port = to_node.ports[to_port_index]
                    _, _ = add_link(from_port, to_port)
                    link = Link(from_port, to_port)
                    from_node.add_link(link)
                    to_node.add_link(link)
                    self.addItem(link)
                    link.setZValue(-1)
                    self.adj_list[from_node_index].add(to_node_index)
                    self.adj_list[to_node_index].add(from_node_index)

            self.update()
            return True
        except (IndexError, ValueError, KeyError) as e:
            logger.exception(e)
            logger.error("An exception occured while loading project in MONO.")
            self.reinit()
            return False

    def run_all(self):
        roots = self._to_sources()

        for root in roots:
            self.nodes[root].run_downward()

    def _to_sources(self):
        roots = []
        visited = {node: False for node in self.nodes}

        def forward(node):
            for port in node.ports:
                if port.type == Port.OUTPUT:
                    if port.has_children():
                        for child in port.children:
                            child_node = child.parentItem()
                            if not visited[child_node.index()]:
                                visited[child_node.index()] = False
                                forward(child_node)

        def backward(node_index):
            if not visited[node_index]:
                visited[node_index] = True
                node = self.nodes[node_index]
                if node.ports[0].type == Port.INPUT:
                    backward(node.ports[0].parentItem().index())
                    if len(node.ports
                           ) > 1 and node.ports[1].type == Port.INPUT:
                        backward(node.ports[1].parentItem().index())
                else:
                    roots.append(node_index)
                    forward(node)

        for node in self.nodes:
            backward(node)

        return roots

    def _handle_add_link(self, target_item):
        port_index = target_item.index()
        node_index = target_item.parentItem().index()
        if node_index == self.current_port[0]:
            return

        from_node, to_node, from_port, to_port = self._permute(
            self.current_port[0], self.current_port[1], node_index, port_index)
        if from_port is None:
            QMessageBox.critical(
                None, 'Error',
                'Connections can only be established between Output and Input ports!',
                QMessageBox.Ok)
            return
        success, cause = add_link(from_port, to_port)
        if success:
            link = Link(from_port, to_port)
            from_node.add_link(link)
            to_node.add_link(link)
            self.addItem(link)
            link.setZValue(-1)
            self.update()
            self.adj_list[from_node.index()].add(to_node.index())
            self.adj_list[to_node.index()].add(from_node.index())
        else:
            if cause == 'already':
                QMessageBox.critical(None, 'Error',
                                     'These two ports are already connected.',
                                     QMessageBox.Ok)
            elif cause == 'type':
                QMessageBox.critical(
                    None, 'Error',
                    'These two ports cannot be connected: incompatible data types.',
                    QMessageBox.Ok)
            else:
                QMessageBox.critical(
                    None, 'Error',
                    'The input port is already connected to another port.',
                    QMessageBox.Ok)

    def _handle_remove_link(self, target_item):
        msg = QMessageBox.warning(None, 'Confirm delete',
                                  'Do you want to delete this link?',
                                  QMessageBox.Ok | QMessageBox.Cancel,
                                  QMessageBox.Ok)
        if msg == QMessageBox.Cancel:
            return
        from_index, to_index = target_item.from_port.parentItem().index(
        ), target_item.to_port.parentItem().index()
        self.adj_list[from_index].remove(to_index)
        self.adj_list[to_index].remove(from_index)
        target_item.remove()
        self.removeItem(target_item)

    def handle_remove_node(self, node):
        msg = QMessageBox.warning(None, 'Confirm delete',
                                  'Do you want to delete this node?',
                                  QMessageBox.Ok | QMessageBox.Cancel,
                                  QMessageBox.Ok)
        if msg == QMessageBox.Cancel:
            return
        self.removeItem(node)
        for link in node.links.copy():
            link.remove()
            self.removeItem(link)
        del self.nodes[node.index()]

        new_nodes = {}
        self.nb_nodes -= 1

        for index, node in zip(range(self.nb_nodes), self.nodes.values()):
            new_nodes[index] = node
            node.set_index(index)
        self.nodes = new_nodes

        self.adj_list = {node: set() for node in self.nodes}
        for item in self.items():
            if isinstance(item, Link):
                from_index, to_index = item.from_port.parentItem().index(
                ), item.to_port.parentItem().index()
                self.adj_list[from_index].add(to_index)
                self.adj_list[to_index].add(from_index)

    def _permute(self, first_node_index, first_port_index, second_node_index,
                 second_port_index):
        first_node = self.nodes[first_node_index]
        second_node = self.nodes[second_node_index]
        p1 = first_node.ports[first_port_index]
        p2 = second_node.ports[second_port_index]
        if p1.type == Port.OUTPUT and p2.type == Port.INPUT:
            return first_node, second_node, p1, p2
        elif p1.type == Port.INPUT and p2.type == Port.OUTPUT:
            return second_node, first_node, p2, p1
        return None, None, None, None

    def suffix_pool(self):
        suffix = []
        for node in self.nodes.values():
            if hasattr(node, 'suffix'):
                suffix.append(node.suffix)
        return suffix

    def not_connected(self):
        nb_cc, _ = count_cc(list(self.adj_list.keys()), self.adj_list)
        return nb_cc > 1
Beispiel #5
0
class Editor(QWidget):
    """
    This class is the central widget of the MainWindow.
    It contains the items library, diagram graphics scene and graphics view, and the inspector widget

    Function of Connections:
    Logically:
    A Connection is composed of a fromPort and a toPort, which gives the direction of the pipe.
    Ports are attached to Blocks.
    Visually:
    A diagram editor has a QGraphicsLineItem (connLineItem) which is set Visible only when a connection is being created

    Function of BlockItems:
    Items can be added to the library by adding them to the model of the library broswer view.
    Then they can be dragged and dropped into the diagram view.

    Function of trnsysExport:
    When exporting the trnsys file, exportData() is called.

    Function of save and load:
    A diagram can be saved to a json file by calling encodeDiagram and can then be loaded by calling decodeDiagram wiht
    appropiate filenames.

    Attributes
    ----------
    projectFolder : str
        Path to the folder of the project
    diagramName : str
        Name used for saving the diagram
    saveAsPath : :obj:`Path`
        Default saving location is trnsysGUI/diagrams, path only set if "save as" used
    idGen : :obj:`IdGenerator`
        Is used to distribute ids (id, trnsysId(for trnsysExport), etc)
    alignMode : bool
        Enables mode in which a dragged block is aligned to y or x value of another one
        Toggled in the MainWindow class in toggleAlignMode()

    editorMode : int
        Mode 0: Pipes are PolySun-like
        Mode 1: Pipes have only 90deg angles, visio-like
    snapGrid : bool
        Enable/Disable align grid
    snapSize : int
        Size of align grid

    horizontalLayout : :obj:`QHBoxLayout`
    Contains the diagram editor and the layout containing the library browser view and the listview
    vertL : :obj:`QVBoxLayout`
    Cointains the library browser view and the listWidget

    moveDirectPorts: bool
        Enables/Disables moving direct ports of storagetank (doesn't work with HxPorts yet)
    diagramScene : :obj:`QGraphicsScene`
        Contains the "logical" part of the diagram
    diagramView : :obj:`QGraphicsView`
        Contains the visualization of the diagramScene
    _currentlyDraggedConnectionFromPort : :obj:`PortItem`
    connectionList : :obj:`List` of :obj:`Connection`
    trnsysObj : :obj:`List` of :obj:`BlockItem` and :obj:`Connection`
    graphicalObj : :obj:`List` of :obj:`GraphicalItem`
    connLine : :obj:`QLineF`
    connLineItem = :obj:`QGraphicsLineItem`

    """
    def __init__(self, parent, projectFolder, jsonPath, loadValue, logger):
        super().__init__(parent)

        self.logger = logger

        self.logger.info("Initializing the diagram editor")

        self.projectFolder = projectFolder

        self.diagramName = os.path.split(self.projectFolder)[-1] + ".json"
        self.saveAsPath = _pl.Path()
        self.idGen = IdGenerator()

        self.testEnabled = False
        self.existReference = True

        self.controlExists = 0
        self.controlDirectory = ""

        self.alignMode = False

        self.moveDirectPorts = False

        self.editorMode = 1

        # Related to the grid blocks can snap to
        self.snapGrid = False
        self.snapSize = 20

        self.trnsysPath = _pl.Path(r"C:\Trnsys17\Exe\TRNExe.exe")

        self.horizontalLayout = QHBoxLayout(self)
        self.libraryBrowserView = QListView(self)
        self.libraryModel = LibraryModel(self)

        self.libraryBrowserView.setGridSize(QSize(65, 65))
        self.libraryBrowserView.setResizeMode(QListView.Adjust)
        self.libraryModel.setColumnCount(0)

        componentNamesWithIcon = [
            ("Connector", _img.CONNECTOR_SVG.icon()),
            ("TeePiece", _img.TEE_PIECE_SVG.icon()),
            ("DPTee", _img.DP_TEE_PIECE_SVG.icon()),
            ("SPCnr", _img.SINGLE_DOUBLE_PIPE_CONNECTOR_SVG.icon()),
            ("DPCnr", _img.DOUBLE_DOUBLE_PIPE_CONNECTOR_SVG.icon()),
            ("TVentil", _img.T_VENTIL_SVG.icon()),
            ("WTap_main", _img.W_TAP_MAIN_SVG.icon()),
            ("WTap", _img.W_TAP_SVG.icon()),
            ("Pump", _img.PUMP_SVG.icon()),
            ("Collector", _img.COLLECTOR_SVG.icon()),
            ("GroundSourceHx", _img.GROUND_SOURCE_HX_SVG.icon()),
            ("PV", _img.PV_SVG.icon()),
            ("HP", _img.HP_SVG.icon()),
            ("HPTwoHx", _img.HP_TWO_HX_SVG.icon()),
            ("HPDoubleDual", _img.HP_DOUBLE_DUAL_SVG.icon()),
            ("HPDual", _img.HP_DUAL_SVG.icon()),
            ("AirSourceHP", _img.AIR_SOURCE_HP_SVG.icon()),
            ("StorageTank", _img.STORAGE_TANK_SVG.icon()),
            ("IceStorage", _img.ICE_STORAGE_SVG.icon()),
            ("PitStorage", _img.PIT_STORAGE_SVG.icon()),
            ("IceStorageTwoHx", _img.ICE_STORAGE_TWO_HX_SVG.icon()),
            ("ExternalHx", _img.EXTERNAL_HX_SVG.icon()),
            ("Radiator", _img.RADIATOR_SVG.icon()),
            ("Boiler", _img.BOILER_SVG.icon()),
            ("Sink", _img.SINK_SVG.icon()),
            ("Source", _img.SOURCE_SVG.icon()),
            ("SourceSink", _img.SOURCE_SINK_SVG.icon()),
            ("Geotherm", _img.GEOTHERM_SVG.icon()),
            ("Water", _img.WATER_SVG.icon()),
            ("Crystalizer", _img.CRYSTALIZER_SVG.icon()),
            ("GenericBlock", _img.GENERIC_BLOCK_PNG.icon()),
            ("GraphicalItem", _img.GENERIC_ITEM_PNG.icon()),
        ]

        libItems = [
            QtGui.QStandardItem(icon, name)
            for name, icon in componentNamesWithIcon
        ]

        for i in libItems:
            self.libraryModel.appendRow(i)

        self.libraryBrowserView.setModel(self.libraryModel)
        self.libraryBrowserView.setViewMode(self.libraryBrowserView.IconMode)
        self.libraryBrowserView.setDragDropMode(
            self.libraryBrowserView.DragOnly)

        self.diagramScene = Scene(self)
        self.diagramView = View(self.diagramScene, self)

        # For list view
        self.vertL = QVBoxLayout()
        self.vertL.addWidget(self.libraryBrowserView)
        self.vertL.setStretchFactor(self.libraryBrowserView, 2)
        self.listV = QListWidget()
        self.vertL.addWidget(self.listV)
        self.vertL.setStretchFactor(self.listV, 1)

        # for file browser
        self.projectPath = ""
        self.fileList = []

        if loadValue == "new" or loadValue == "json":
            self.createProjectFolder()

        self.fileBrowserLayout = QVBoxLayout()
        self.pathLayout = QHBoxLayout()
        self.projectPathLabel = QLabel("Project Path:")
        self.PPL = QLineEdit(self.projectFolder)
        self.PPL.setDisabled(True)

        self.pathLayout.addWidget(self.projectPathLabel)
        self.pathLayout.addWidget(self.PPL)
        self.scroll = QScrollArea()
        self.scroll.setWidgetResizable(True)
        self.splitter = QSplitter(Qt.Vertical, )
        self.splitter.setChildrenCollapsible(False)
        self.scroll.setWidget(self.splitter)
        self.scroll.setFixedWidth(350)
        self.fileBrowserLayout.addLayout(self.pathLayout)
        self.fileBrowserLayout.addWidget(self.scroll)
        self.createDdckTree(self.projectFolder)

        if loadValue == "new" or loadValue == "json":
            self.createConfigBrowser(self.projectFolder)
            self.copyGenericFolder(self.projectFolder)
            self.createHydraulicDir(self.projectFolder)
            self.createWeatherAndControlDirs(self.projectFolder)

        self.horizontalLayout.addLayout(self.vertL)
        self.horizontalLayout.addWidget(self.diagramView)
        self.horizontalLayout.addLayout(self.fileBrowserLayout)
        self.horizontalLayout.setStretchFactor(self.diagramView, 5)
        self.horizontalLayout.setStretchFactor(self.libraryBrowserView, 1)

        self._currentlyDraggedConnectionFromPort = None
        self.connectionList = []
        self.trnsysObj = []
        self.graphicalObj = []
        self.fluids = _hlm.Fluids([])
        self.hydraulicLoops = _hlm.HydraulicLoops([])

        self.copyGroupList = QGraphicsItemGroup()
        self.selectionGroupList = QGraphicsItemGroup()

        self.printerUnitnr = 0

        # Different colors for connLineColor
        colorsc = "red"
        linePx = 4
        if colorsc == "red":
            connLinecolor = QColor(Qt.red)
        elif colorsc == "blueish":
            connLinecolor = QColor(3, 124, 193)  # Blue
        elif colorsc == "darkgray":
            connLinecolor = QColor(140, 140, 140)  # Gray
        else:
            connLinecolor = QColor(196, 196, 196)  # Gray

        # Only for displaying on-going creation of connection
        self.connLine = QLineF()
        self.connLineItem = QGraphicsLineItem(self.connLine)
        self.connLineItem.setPen(QtGui.QPen(connLinecolor, linePx))
        self.connLineItem.setVisible(False)
        self.diagramScene.addItem(self.connLineItem)

        # For line that shows quickly up when using the align mode
        self.alignYLine = QLineF()
        self.alignYLineItem = QGraphicsLineItem(self.alignYLine)
        self.alignYLineItem.setPen(QtGui.QPen(QColor(196, 249, 252), 2))
        self.alignYLineItem.setVisible(False)
        self.diagramScene.addItem(self.alignYLineItem)

        # For line that shows quickly up when using align mode
        self.alignXLine = QLineF()
        self.alignXLineItem = QGraphicsLineItem(self.alignXLine)
        self.alignXLineItem.setPen(QtGui.QPen(QColor(196, 249, 252), 2))
        self.alignXLineItem.setVisible(False)
        self.diagramScene.addItem(self.alignXLineItem)

        if loadValue == "load" or loadValue == "copy":
            self._decodeDiagram(os.path.join(self.projectFolder,
                                             self.diagramName),
                                loadValue=loadValue)
        elif loadValue == "json":
            self._decodeDiagram(jsonPath, loadValue=loadValue)

    # Debug function
    def dumpInformation(self):
        self.logger.debug("Diagram information:")
        self.logger.debug("Mode is " + str(self.editorMode))

        self.logger.debug("Next ID is " + str(self.idGen.getID()))
        self.logger.debug("Next cID is " + str(self.idGen.getConnID()))

        self.logger.debug("TrnsysObjects are:")
        for t in self.trnsysObj:
            self.logger.debug(str(t))
        self.logger.debug("")

        self.logger.debug("Scene items are:")
        sItems = self.diagramScene.items()
        for it in sItems:
            self.logger.info(str(it))
        self.logger.debug("")

        for c in self.connectionList:
            c.printConn()
        self.logger.debug("")

    # Connections related methods
    def startConnection(self, port):
        self._currentlyDraggedConnectionFromPort = port

    def _createConnection(self, startPort, endPort) -> None:
        if startPort is not endPort:
            if (isinstance(startPort.parent, StorageTank)
                    and isinstance(endPort.parent, StorageTank)
                    and startPort.parent != endPort.parent):
                msgSTank = QMessageBox(self)
                msgSTank.setText(
                    "Storage Tank to Storage Tank connection is not working atm!"
                )
                msgSTank.exec_()

            isValidSinglePipeConnection = isinstance(
                startPort, SinglePipePortItem) and isinstance(
                    endPort, SinglePipePortItem)
            if isValidSinglePipeConnection:
                command = CreateSinglePipeConnectionCommand(
                    startPort, endPort, self)
            elif isinstance(startPort, DoublePipePortItem) and isinstance(
                    endPort, DoublePipePortItem):
                command = CreateDoublePipeConnectionCommand(
                    startPort, endPort, self)
            else:
                raise AssertionError(
                    "Can only connect port items. Also, they have to be of the same type."
                )

            self.parent().undoStack.push(command)

    def sceneMouseMoveEvent(self, event):
        """
        This function is for dragging and connecting one port to another.
        When dragging, the fromPort will remain enlarged and black in color and when the toPort is hovered over, it will be
        enlarged and turn red.
        A port's details will also be displayed at the widget when they are hovered over.
        """
        fromPort = self._currentlyDraggedConnectionFromPort
        if not fromPort:
            return

        fromX = fromPort.scenePos().x()
        fromY = fromPort.scenePos().y()

        toX = event.scenePos().x()
        toY = event.scenePos().y()

        self.connLine.setLine(fromX, fromY, toX, toY)
        self.connLineItem.setLine(self.connLine)
        self.connLineItem.setVisible(True)

        hitPortItem = self._getHitPortItemOrNone(event)

        if not hitPortItem:
            return

        mousePosition = event.scenePos()

        portItemX = hitPortItem.scenePos().x()
        portItemY = hitPortItem.scenePos().y()

        distance = _math.sqrt((mousePosition.x() - portItemX)**2 +
                              (mousePosition.y() - portItemY)**2)
        if distance <= 3.5:
            hitPortItem.enlargePortSize()
            hitPortItem.innerCircle.setBrush(hitPortItem.ashColorR)
            self.listV.clear()
            hitPortItem.debugprint()
        else:
            hitPortItem.resetPortSize()
            hitPortItem.innerCircle.setBrush(hitPortItem.visibleColor)
            self.listV.clear()
            fromPort.debugprint()

        fromPort.enlargePortSize()
        fromPort.innerCircle.setBrush(hitPortItem.visibleColor)

    def _getHitPortItemOrNone(self,
                              event: QEvent) -> _tp.Optional[PortItemBase]:
        fromPort = self._currentlyDraggedConnectionFromPort
        mousePosition = event.scenePos()

        relevantPortItems = self._getRelevantHitPortItems(
            mousePosition, fromPort)
        if not relevantPortItems:
            return None

        numberOfHitPortsItems = len(relevantPortItems)
        if numberOfHitPortsItems > 1:
            raise NotImplementedError(
                "Can't deal with overlapping port items.")

        hitPortItem = relevantPortItems[0]

        return hitPortItem

    def sceneMouseReleaseEvent(self, event):
        if not self._currentlyDraggedConnectionFromPort:
            return
        fromPort = self._currentlyDraggedConnectionFromPort

        self._currentlyDraggedConnectionFromPort = None
        self.connLineItem.setVisible(False)

        mousePosition = event.scenePos()
        relevantPortItems = self._getRelevantHitPortItems(
            mousePosition, fromPort)

        numberOfHitPortsItems = len(relevantPortItems)

        if numberOfHitPortsItems > 1:
            raise NotImplementedError(
                "Can't deal with overlapping port items.")

        if numberOfHitPortsItems == 1:
            toPort = relevantPortItems[0]

            if toPort != fromPort:
                self._createConnection(fromPort, toPort)

    def _getRelevantHitPortItems(
            self, mousePosition: QPointF,
            fromPort: PortItemBase) -> _tp.Sequence[PortItemBase]:
        hitItems = self.diagramScene.items(mousePosition)
        relevantPortItems = [
            i for i in hitItems if isinstance(i, PortItemBase)
            and type(i) == type(fromPort) and not i.connectionList
        ]
        return relevantPortItems

    def cleanUpConnections(self):
        for c in self.connectionList:
            c.niceConn()

    def exportHydraulics(self, exportTo=_tp.Literal["ddck", "mfs"]):
        assert exportTo in ["ddck", "mfs"]

        if not self._isHydraulicConnected():
            messageBox = QMessageBox()
            messageBox.setWindowTitle("Hydraulic not connected")
            messageBox.setText(
                "You need to connect all port items before you can export the hydraulics."
            )
            messageBox.setStandardButtons(QMessageBox.Ok)
            messageBox.exec()
            return

        self.logger.info(
            "------------------------> START OF EXPORT <------------------------"
        )

        self.sortTrnsysObj()

        fullExportText = ""

        ddckFolder = os.path.join(self.projectFolder, "ddck")

        if exportTo == "mfs":
            mfsFileName = self.diagramName.split(".")[0] + "_mfs.dck"
            exportPath = os.path.join(self.projectFolder, mfsFileName)
        elif exportTo == "ddck":
            exportPath = os.path.join(ddckFolder, "hydraulic\\hydraulic.ddck")

        if self._doesFileExistAndDontOverwrite(exportPath):
            return None

        self.logger.info("Printing the TRNSYS file...")

        if exportTo == "mfs":
            header = open(os.path.join(ddckFolder, "generic\\head.ddck"), "r")
            headerLines = header.readlines()
            for line in headerLines:
                if line[:4] == "STOP":
                    fullExportText += "STOP = 1 \n"
                else:
                    fullExportText += line
            header.close()
        elif exportTo == "ddck":
            fullExportText += "*************************************\n"
            fullExportText += "** BEGIN hydraulic.ddck\n"
            fullExportText += "*************************************\n\n"
            fullExportText += "*************************************\n"
            fullExportText += "** Outputs to energy balance in kWh\n"
            fullExportText += (
                "** Following this naming standard : qSysIn_name, qSysOut_name, elSysIn_name, elSysOut_name\n"
            )
            fullExportText += "*************************************\n"
            fullExportText += "EQUATIONS 1\n"
            fullExportText += "qSysOut_PipeLoss = PipeLossTot\n"

        simulationUnit = 450
        simulationType = 935
        descConnLength = 20

        exporter = self._createExporter()

        blackBoxProblem, blackBoxText = exporter.exportBlackBox(
            exportTo=exportTo)
        if blackBoxProblem:
            return None

        fullExportText += blackBoxText
        if exportTo == "mfs":
            fullExportText += exporter.exportMassFlows()
            fullExportText += exporter.exportPumpOutlets()
            fullExportText += exporter.exportDivSetting(simulationUnit - 10)

        fullExportText += exporter.exportDoublePipeParameters(
            exportTo=exportTo)

        fullExportText += exporter.exportParametersFlowSolver(
            simulationUnit, simulationType, descConnLength)

        fullExportText += exporter.exportInputsFlowSolver()
        fullExportText += exporter.exportOutputsFlowSolver(simulationUnit)
        fullExportText += exporter.exportFluids() + "\n"
        fullExportText += exporter.exportHydraulicLoops() + "\n"
        fullExportText += exporter.exportPipeAndTeeTypesForTemp(
            simulationUnit + 1)  # DC-ERROR
        fullExportText += exporter.exportPrintPipeLosses()

        fullExportText += exporter.exportMassFlowPrinter(
            self.printerUnitnr, 15)
        fullExportText += exporter.exportTempPrinter(self.printerUnitnr + 1,
                                                     15)

        if exportTo == "mfs":
            fullExportText += "CONSTANTS 1\nTRoomStore=1\n"
            fullExportText += "ENDS"

        self.logger.info(
            "------------------------> END OF EXPORT <------------------------"
        )

        if exportTo == "mfs":
            f = open(exportPath, "w")
            f.truncate(0)
            f.write(fullExportText)
            f.close()
        elif exportTo == "ddck":
            if fullExportText[:1] == "\n":
                fullExportText = fullExportText[1:]
            hydraulicFolder = os.path.split(exportPath)[0]
            if not (os.path.isdir(hydraulicFolder)):
                os.makedirs(hydraulicFolder)
            f = open(exportPath, "w")
            f.truncate(0)
            f.write(fullExportText)
            f.close()

        try:
            lines = _du.loadDeck(exportPath,
                                 eraseBeginComment=True,
                                 eliminateComments=True)
            _du.checkEquationsAndConstants(lines, exportPath)
        except Exception as error:
            errorMessage = f"An error occurred while exporting the system hydraulics: {error}"
            _errs.showErrorMessageBox(errorMessage)
            return None

        return exportPath

    def _createExporter(self) -> Export:
        massFlowContributors = self._getMassFlowContributors()
        exporter = Export(massFlowContributors, self)
        return exporter

    def _getMassFlowContributors(
            self) -> _tp.Sequence[_mfs.MassFlowNetworkContributorMixin]:
        massFlowContributors = [
            o for o in self.trnsysObj
            if isinstance(o, _mfs.MassFlowNetworkContributorMixin)
        ]
        return massFlowContributors

    def _isHydraulicConnected(self) -> bool:
        for obj in self.trnsysObj:
            if not isinstance(obj, _mfs.MassFlowNetworkContributorMixin):
                continue

            internalPiping = obj.getInternalPiping()

            for portItem in internalPiping.modelPortItemsToGraphicalPortItem.values(
            ):
                if not portItem.connectionList:
                    return False

        return True

    def _doesFileExistAndDontOverwrite(self, folderPath):
        if not _pl.Path(folderPath).exists():
            return False

        qmb = QMessageBox(self)
        qmb.setText(
            f"Warning: {folderPath} already exists. Do you want to overwrite it or cancel?"
        )
        qmb.setStandardButtons(QMessageBox.Save | QMessageBox.Cancel)
        qmb.setDefaultButton(QMessageBox.Cancel)
        ret = qmb.exec()

        if ret == QMessageBox.Cancel:
            self.canceled = True
            self.logger.info("Canceling")
            return True

        self.canceled = False
        self.logger.info("Overwriting")
        return False

    def exportHydraulicControl(self):
        self.logger.info(
            "------------------------> START OF EXPORT <------------------------"
        )

        self.sortTrnsysObj()

        fullExportText = ""

        ddckFolder = os.path.join(self.projectFolder, "ddck")

        hydCtrlPath = os.path.join(ddckFolder,
                                   "control\\hydraulic_control.ddck")
        if _pl.Path(hydCtrlPath).exists():
            qmb = QMessageBox(self)
            qmb.setText(
                "Warning: " +
                "The file hydraulic_control.ddck already exists in the control folder. Do you want to overwrite it or cancel?"
            )
            qmb.setStandardButtons(QMessageBox.Save | QMessageBox.Cancel)
            qmb.setDefaultButton(QMessageBox.Cancel)
            ret = qmb.exec()
            if ret == QMessageBox.Save:
                self.canceled = False
                self.logger.info("Overwriting")
            else:
                self.canceled = True
                self.logger.info("Canceling")
                return

        fullExportText += "*************************************\n"
        fullExportText += "**BEGIN hydraulic_control.ddck\n"
        fullExportText += "*************************************\n"

        simulationUnit = 450

        exporter = self._createExporter()

        fullExportText += exporter.exportPumpOutlets()
        fullExportText += exporter.exportMassFlows()
        fullExportText += exporter.exportDivSetting(simulationUnit - 10)

        self.logger.info(
            "------------------------> END OF EXPORT <------------------------"
        )

        if fullExportText[:1] == "\n":
            fullExportText = fullExportText[1:]
        controlFolder = os.path.split(hydCtrlPath)[0]
        if not (os.path.isdir(controlFolder)):
            os.makedirs(controlFolder)
        f = open(str(hydCtrlPath), "w")
        f.truncate(0)
        f.write(fullExportText)
        f.close()

        return hydCtrlPath

    def sortTrnsysObj(self):
        res = self.trnsysObj.sort(key=self.sortId)
        for s in self.trnsysObj:
            self.logger.debug("s has tr id " + str(s.trnsysId) +
                              " has dname " + s.displayName)

    def sortId(self, l1):
        """
        Sort function returning a sortable key
        Parameters
        ----------
        l1 : Block/Connection

        Returns
        -------

        """
        return l1.trnsysId

    def setName(self, newName):
        self.diagramName = newName

    def delBlocks(self):
        """
        Deletes the whole diagram

        Returns
        -------

        """
        self.hydraulicLoops.clear()

        while len(self.trnsysObj) > 0:
            self.logger.info("In deleting...")
            self.trnsysObj[0].deleteBlock()

        while len(self.graphicalObj) > 0:
            self.graphicalObj[0].deleteBlock()

    # Encoding / decoding
    def encodeDiagram(self, filename):
        """
        Encodes the diagram to a json file.

        Parameters
        ----------
        filename : str

        Returns
        -------

        """
        self.logger.info("filename is at encoder " + str(filename))
        # if filename != "":
        with open(filename, "w") as jsonfile:
            json.dump(self, jsonfile, indent=4, sort_keys=True, cls=Encoder)

    def _decodeDiagram(self, filename, loadValue="load"):
        self.logger.info("Decoding " + filename)
        with open(filename, "r") as jsonfile:
            blocklist = json.load(jsonfile, cls=Decoder, editor=self)

        blockFolderNames = []

        for j in blocklist["Blocks"]:
            for k in j:
                if isinstance(k, BlockItem):
                    k.setParent(self.diagramView)
                    k.changeSize()
                    self.diagramScene.addItem(k)
                    blockFolderNames.append(k.displayName)

                if isinstance(k, StorageTank):
                    k.updateImage()

                if isinstance(k, GraphicalItem):
                    k.setParent(self.diagramView)
                    self.diagramScene.addItem(k)

                if isinstance(k, dict):
                    if "__idDct__" in k:
                        # here we don't set the ids because the copyGroup would need access to idGen
                        self.logger.debug(
                            "Found the id dict while loading, not setting the ids"
                        )

                        self.idGen.setID(k["GlobalId"])
                        self.idGen.setTrnsysID(k["trnsysID"])
                        self.idGen.setConnID(k["globalConnID"])

                    if "__nameDct__" in k:
                        self.logger.debug("Found the name dict while loading")
                        if loadValue == "load":
                            self.diagramName = k["DiagramName"]

        blockFolderNames.append("generic")
        blockFolderNames.append("hydraulic")
        blockFolderNames.append("weather")
        blockFolderNames.append("control")

        ddckFolder = os.path.join(self.projectFolder, "ddck")
        ddckFolders = os.listdir(ddckFolder)
        additionalFolders = []

        for folder in ddckFolders:
            if folder not in blockFolderNames and "StorageTank" not in folder:
                additionalFolders.append(folder)

        if len(additionalFolders) > 0:
            warnBox = QMessageBox()
            warnBox.setWindowTitle("Additional ddck-folders")

            if len(additionalFolders) == 1:
                text = "The following ddck-folder does not have a corresponding component in the diagram:"
            else:
                text = "The following ddck-folders do not have a corresponding component in the diagram:"

            for folder in additionalFolders:
                text += "\n\t" + folder

            warnBox.setText(text)
            warnBox.setStandardButtons(QMessageBox.Ok)
            warnBox.setDefaultButton(QMessageBox.Ok)
            warnBox.exec()

        for t in self.trnsysObj:
            t.assignIDsToUninitializedValuesAfterJsonFormatMigration(
                self.idGen)

            self.logger.debug("Tr obj is" + str(t) + " " + str(t.trnsysId))
            if hasattr(t, "isTempering"):
                self.logger.debug("tv has " + str(t.isTempering))

        self._decodeHydraulicLoops(blocklist)

    def _decodeHydraulicLoops(self, blocklist):
        singlePipeConnections = [
            c for c in self.connectionList
            if isinstance(c, SinglePipeConnection)
        ]
        if "hydraulicLoops" not in blocklist:
            hydraulicLoops = _hlmig.createLoops(singlePipeConnections,
                                                self.fluids.WATER)
        else:
            serializedHydraulicLoops = blocklist["hydraulicLoops"]
            hydraulicLoops = _hlm.HydraulicLoops.createFromJson(
                serializedHydraulicLoops, singlePipeConnections, self.fluids)

        self.hydraulicLoops = hydraulicLoops

    def exportSvg(self):
        """
        For exporting a svg file (text is still too large)
        Returns
        -------

        """
        generator = QSvgGenerator()
        generator.setResolution(300)
        generator.setSize(
            QSize(self.diagramScene.width(), self.diagramScene.height()))
        # generator.setViewBox(QRect(0, 0, 800, 800))
        generator.setViewBox(self.diagramScene.sceneRect())
        generator.setFileName("VectorGraphicsExport.svg")

        painter = QPainter()
        painter.begin(generator)
        painter.setRenderHint(QPainter.Antialiasing)
        self.diagramScene.render(painter)
        painter.end()

    # Saving related
    def save(self, showWarning=True):
        """
        If saveas has not been used, diagram will be saved in "/diagrams"
        If saveas has been used, diagram will be saved in self.saveAsPath
        Returns
        -------

        """
        self.diagramName = os.path.split(self.projectFolder)[-1] + ".json"
        diagramPath = os.path.join(self.projectFolder, self.diagramName)

        if os.path.isfile(diagramPath) and showWarning:
            qmb = QMessageBox(self)
            qmb.setText(
                "Warning: " +
                "This diagram name exists already. Do you want to overwrite or cancel?"
            )
            qmb.setStandardButtons(QMessageBox.Save | QMessageBox.Cancel)
            qmb.setDefaultButton(QMessageBox.Cancel)
            ret = qmb.exec()

            if ret != QMessageBox.Save:
                self.logger.info("Canceling")
                return

            self.logger.info("Overwriting")
            self.encodeDiagram(diagramPath)

        self.encodeDiagram(diagramPath)
        msgb = QMessageBox(self)
        msgb.setText("Saved diagram at " + diagramPath)
        msgb.exec()

    def saveToProject(self):
        projectPath = self.projectPath

    def renameDiagram(self, newName):
        """

        Parameters
        ----------
        newName

        Returns
        -------

        """

        if self.saveAsPath.name != "":
            # print("Path name is " + self.saveAsPath.name)
            if newName + ".json" in self.saveAsPath.glob("*"):
                QMessageBox(
                    self, "Warning",
                    "This diagram name exists already in the directory."
                    " Please rename this diagram")
            else:
                self.saveAsPath = _pl.Path(
                    self.saveAsPath.stem[0:self.saveAsPath.name.
                                         index(self.diagramName)] + newName)

        self.diagramName = newName
        self.parent().currentFile = newName
        # fromPath = self.projectFolder
        # destPath = os.path.dirname(__file__)
        # destPath = os.path.join(destPath, 'default')
        # destPath = os.path.join(destPath, newName)
        # os.rename(fromPath, destPath)

        # print("Path is now: " + str(self.saveAsPath))
        # print("Diagram name is: " + self.diagramName)

    def saveAtClose(self):
        self.logger.info("saveaspath is " + str(self.saveAsPath))

        # closeDialog = closeDlg()
        # if closeDialog.closeBool:
        filepath = _pl.Path(
            _pl.Path(__file__).resolve().parent.joinpath("recent"))
        self.encodeDiagram(str(filepath.joinpath(self.diagramName + ".json")))

    # Mode related
    def setAlignMode(self, b):
        self.alignMode = True

    def setEditorMode(self, b):
        self.editorMode = b

    def setMoveDirectPorts(self, b):
        """
        Sets the bool moveDirectPorts. When mouse released in diagramScene, moveDirectPorts is set to False again
        Parameters
        ----------
        b : bool

        Returns
        -------

        """
        self.moveDirectPorts = b

    def setSnapGrid(self, b):
        self.snapGrid = b

    def setSnapSize(self, s):
        self.snapSize = s

    def setConnLabelVis(self, isVisible: bool) -> None:
        for c in self.trnsysObj:
            if isinstance(c, ConnectionBase):
                c.setLabelVisible(isVisible)
            if isinstance(c, BlockItem):
                c.label.setVisible(isVisible)
            if isinstance(c, TVentil):
                c.posLabel.setVisible(isVisible)

    def updateConnGrads(self):
        for t in self.trnsysObj:
            if isinstance(t, ConnectionBase):
                t.updateSegGrads()

    # Dialog calls
    def showBlockDlg(self, bl):
        c = BlockDlg(bl, self)

    def showDoublePipeBlockDlg(self, bl):
        c = DoublePipeBlockDlg(bl, self)

    def showPumpDlg(self, bl):
        c = PumpDlg(bl, self)

    def showDiagramDlg(self):
        c = diagramDlg(self)

    def showGenericPortPairDlg(self, bl):
        c = GenericPortPairDlg(bl, self)

    def showHxDlg(self, hx):
        c = hxDlg(hx, self)

    def showSegmentDlg(self, seg):
        c = segmentDlg(seg, self)

    def showTVentilDlg(self, bl):
        c = TVentilDlg(bl, self)

    def showConfigStorageDlg(self, bl):
        c = ConfigureStorageDialog(bl, self)

    def getConnection(self, n):
        return self.connectionList[int(n)]

    # Unused
    def create_icon(self, map_icon):
        map_icon.fill()
        painter = QPainter(map_icon)
        painter.fillRect(10, 10, 40, 40, QColor(88, 233, 252))
        # painter.setBrush(Qt.red)
        painter.setBrush(QColor(252, 136, 98))
        painter.drawEllipse(36, 2, 15, 15)
        painter.setBrush(Qt.yellow)
        painter.drawEllipse(20, 20, 20, 20)
        painter.end()

    def setTrnsysIdBack(self):
        self.idGen.trnsysID = max(t.trnsysId for t in self.trnsysObj)

    def findStorageCorrespPorts1(self, portList):
        """
        This function gets the ports on the other side of pipes connected to a port of the StorageTank. Unused

        Parameters
        ----------
        portList : :obj:`List` of :obj:`PortItems`

        Returns
        -------

        """

        res = []
        # print("Finding c ports")
        for p in portList:
            if len(p.connectionList) > 0:  # check if not >1 needed
                # connectionList[0] is the hidden connection created when the portPair is
                i = 0
                # while type(p.connectionList[i].fromPort.parent) is StorageTank and type(p.connectionList[i].toPort.parent) is StorageTank:
                while (p.connectionList[i].fromPort.parent) == (
                        p.connectionList[i].toPort.parent):
                    i += 1
                if len(p.connectionList) >= i + 1:
                    if p.connectionList[i].fromPort is p:
                        res.append(p.connectionList[i].toPort)
                    elif p.connectionList[i].toPort is p:
                        res.append(p.connectionList[i].fromPort)
                    else:
                        self.logger.debug("Port is not fromPort nor toPort")

        # [print(p.parent.displayName) for p in res]
        return res

    def printPDF(self):
        """
        ---------------------------------------------
        Export diagram as pdf onto specified folder
        fn = user input directory
        ---------------------------------------------
        """
        fn, _ = QFileDialog.getSaveFileName(self, "Export PDF", None,
                                            "PDF files (.pdf);;All Files()")
        if fn != "":
            if QFileInfo(fn).suffix() == "":
                fn += ".pdf"
            printer = QPrinter(QPrinter.HighResolution)
            printer.setOrientation(QPrinter.Landscape)
            printer.setOutputFormat(QPrinter.PdfFormat)
            printer.setOutputFileName(fn)
            painter = QPainter(printer)
            self.diagramScene.render(painter)
            painter.end()
            self.logger.info("File exported to %s" % fn)

    def openProject(self):
        self.projectPath = str(
            QFileDialog.getExistingDirectory(self, "Select Project Path"))
        if self.projectPath != "":
            test = self.parent()

            self.parent().newDia()
            self.PPL.setText(self.projectPath)
            loadPath = os.path.join(self.projectPath, "ddck")

            self.createConfigBrowser(self.projectPath)
            self.copyGenericFolder(self.projectPath)
            self.createHydraulicDir(self.projectPath)
            self.createWeatherAndControlDirs(self.projectPath)
            self.createDdckTree(loadPath)
            # todo : open diagram
            # todo : add files into list

    def createDdckTree(self, loadPath):
        treeToRemove = self.findChild(QTreeView, "ddck")
        try:
            # treeToRemove.hide()
            treeToRemove.deleteLater()
        except AttributeError:
            self.logger.debug("Widget doesnt exist!")
        else:
            self.logger.debug("Deleted widget")
        if self.projectPath == "":
            loadPath = os.path.join(loadPath, "ddck")
        if not os.path.exists(loadPath):
            os.makedirs(loadPath)
        self.model = MyQFileSystemModel()
        self.model.setRootPath(loadPath)
        self.model.setName("ddck")
        self.tree = MyQTreeView(self.model, self)
        self.tree.setModel(self.model)
        self.tree.setRootIndex(self.model.index(loadPath))
        self.tree.setObjectName("ddck")
        self.tree.setMinimumHeight(600)
        self.tree.setSortingEnabled(True)
        self.splitter.insertWidget(0, self.tree)

    def createConfigBrowser(self, loadPath):
        self.layoutToRemove = self.findChild(QHBoxLayout, "Config_Layout")
        try:
            # treeToRemove.hide()
            self.layoutToRemove.deleteLater()
        except AttributeError:
            self.logger.debug("Widget doesnt exist!")
        else:
            self.logger.debug("Deleted widget")

        runConfigData = self._getPackageResourceData("templates/run.config")
        runConfigPath = _pl.Path(loadPath) / "run.config"
        runConfigPath.write_bytes(runConfigData)

        self.HBox = QHBoxLayout()
        self.refreshButton = QPushButton(self)
        self.refreshButton.setIcon(_img.ROTATE_TO_RIGHT_PNG.icon())
        self.refreshButton.clicked.connect(self.refreshConfig)
        self.model = MyQFileSystemModel()
        self.model.setRootPath(loadPath)
        self.model.setName("Config File")
        self.model.setFilter(QDir.Files)
        self.tree = MyQTreeView(self.model, self)
        self.tree.setModel(self.model)
        self.tree.setRootIndex(self.model.index(loadPath))
        self.tree.setObjectName("config")
        self.tree.setFixedHeight(60)
        self.tree.setSortingEnabled(False)
        self.HBox.addWidget(self.refreshButton)
        self.HBox.addWidget(self.tree)
        self.HBox.setObjectName("Config_Layout")
        self.fileBrowserLayout.addLayout(self.HBox)

    def createProjectFolder(self):
        if not os.path.exists(self.projectFolder):
            os.makedirs(self.projectFolder)

    def refreshConfig(self):
        # configPath = os.path.dirname(__file__)
        # configPath = os.path.join(configPath, 'project')
        # configPath = os.path.join(configPath, self.date_time)
        # emptyConfig = os.path.join(configPath, 'run.config')
        if self.projectPath == "":
            localPath = self.projectFolder
        else:
            localPath = self.projectPath

        self.configToEdit = os.path.join(localPath, "run.config")
        os.remove(self.configToEdit)
        shutil.copy(self.emptyConfig, localPath)
        self.configToEdit = os.path.join(localPath, "run.config")

        localDdckPath = os.path.join(localPath, "ddck")
        with open(self.configToEdit, "r") as file:
            lines = file.readlines()
        localPathStr = "string LOCAL$ %s" % str(localDdckPath)
        # localPathStr.replace('/', '\\')
        lines[21] = localPathStr + "\n"

        with open(self.configToEdit, "w") as file:
            file.writelines(lines)

        # print(localPathStr)
        self.userInputList()

    def userInputList(self):
        self.logger.debug(self.fileList)
        dia = FileOrderingDialog(self.fileList, self)

    def copyGenericFolder(self, loadPath):
        genericFolderPath = _pl.Path(loadPath) / "ddck" / "generic"

        if not genericFolderPath.exists():
            self.logger.info("Creating %s", genericFolderPath)
            genericFolderPath.mkdir()

        headData = self._getPackageResourceData("templates/generic/head.ddck")
        self.logger.info("Copying head.ddck")
        (genericFolderPath / "head.ddck").write_bytes(headData)

        endData = self._getPackageResourceData("templates/generic/end.ddck")
        self.logger.info("Copying end.ddck")
        (genericFolderPath / "end.ddck").write_bytes(endData)

    @staticmethod
    def _getPackageResourceData(resourcePath):
        data = _pu.get_data(_tgui.__name__, resourcePath)
        assert data, f"{resourcePath} package resource not found"
        return data

    def createHydraulicDir(self, projectPath):

        self.hydraulicFolder = os.path.join(projectPath, "ddck")
        self.hydraulicFolder = os.path.join(self.hydraulicFolder, "hydraulic")

        if not os.path.exists(self.hydraulicFolder):
            self.logger.info("Creating " + self.hydraulicFolder)
            os.makedirs(self.hydraulicFolder)

    def createWeatherAndControlDirs(self, projectPath):

        ddckFolder = os.path.join(projectPath, "ddck")
        weatherFolder = os.path.join(ddckFolder, "weather")
        controlFolder = os.path.join(ddckFolder, "control")

        if not os.path.exists(weatherFolder):
            self.logger.info("Creating " + weatherFolder)
            os.makedirs(weatherFolder)

        if not os.path.exists(controlFolder):
            self.logger.info("Creating " + controlFolder)
            os.makedirs(controlFolder)

    def editHydraulicLoop(self, singlePipeConnection: SinglePipeConnection):
        assert isinstance(singlePipeConnection.fromPort, SinglePipePortItem)

        hydraulicLoop = self.hydraulicLoops.getLoopForExistingConnection(
            singlePipeConnection)
        _hledit.edit(hydraulicLoop, self.hydraulicLoops, self.fluids)