def loadSvgContent(self, content): s = self.scene() s.clear() self.resetTransform() item = QGraphicsSvgItem() item.setSharedRenderer(QSvgRenderer(content)) item.setFlags(QGraphicsItem.ItemClipsToShape) item.setCacheMode(QGraphicsItem.NoCache) item.setZValue(0) s.addItem(item)
def open_file(self, filename): svg_file = QFile(filename) if not svg_file.exists(): return self.file_name = svg_file self.resetTransform() self.scale(2.0, 2.0) svg_item = QGraphicsSvgItem(svg_file.fileName()) svg_item.setFlags(QGraphicsItem.ItemClipsToShape) svg_item.setCacheMode(QGraphicsItem.NoCache) svg_item.setZValue(0) s = self.scene() s.clear() s.addItem(svg_item)
class SvgView(QGraphicsView): def __init__(self, parent=None): super(SvgView, self).__init__(parent) self.setViewport(QWidget()) self.svgItem = None self.image = QImage() self.setScene(QGraphicsScene(self)) self.setTransformationAnchor(QGraphicsView.AnchorUnderMouse) self.setDragMode(QGraphicsView.ScrollHandDrag) self.setViewportUpdateMode(QGraphicsView.FullViewportUpdate) def openFile(self, svg_file): if not svg_file.exists(): return s = self.scene() s.clear() self.resetTransform() self.svgItem = QGraphicsSvgItem(svg_file.fileName()) self.svgItem.setFlags(QGraphicsItem.ItemClipsToShape) self.svgItem.setCacheMode(QGraphicsItem.NoCache) self.svgItem.setZValue(0) s.addItem(self.svgItem) self.printHotRectangles() def printHotRectangles(self): names="GND0,GND1,GND2,GND3,A1,A2,PVS,OUT,IN,MIC,SINE,IN1,IN2,SEN,SQR1,SQR2,OD1,CCS".split(",") for n in names: print(n, self.svgItem.renderer().boundsOnElement(n)) def wheelEvent(self, event): factor = pow(1.2, event.angleDelta().y() / 240.0) self.scale(factor, factor) event.accept()
class SvgView(QGraphicsView): def __init__(self, parent=None): super(SvgView, self).__init__(parent) self.setViewport(QWidget()) self.svgItem = None self.image = QImage() self.setScene(QGraphicsScene(self)) self.setTransformationAnchor(QGraphicsView.AnchorUnderMouse) self.setDragMode(QGraphicsView.ScrollHandDrag) self.setViewportUpdateMode(QGraphicsView.FullViewportUpdate) def openFile(self, svg_file): if not svg_file.exists(): return s = self.scene() s.clear() self.resetTransform() self.svgItem = QGraphicsSvgItem(svg_file.fileName()) self.svgItem.setFlags(QGraphicsItem.ItemClipsToShape) self.svgItem.setCacheMode(QGraphicsItem.NoCache) self.svgItem.setZValue(0) s.addItem(self.svgItem) self.printHotRectangles() def printHotRectangles(self): names = "GND0,GND1,GND2,GND3,A1,A2,PVS,OUT,IN,MIC,SINE,IN1,IN2,SEN,SQR1,SQR2,OD1,CCS".split( ",") for n in names: print(n, self.svgItem.renderer().boundsOnElement(n)) def wheelEvent(self, event): factor = pow(1.2, event.angleDelta().y() / 240.0) self.scale(factor, factor) event.accept()
class SvgView(QGraphicsView): Native, OpenGL, Image = range(3) def __init__(self, parent=None): super(SvgView, self).__init__(parent) self.renderer = SvgView.Native self.svgItem = None self.backgroundItem = None self.outlineItem = None self.image = QImage() self.setScene(QGraphicsScene(self)) self.setTransformationAnchor(QGraphicsView.AnchorUnderMouse) self.setDragMode(QGraphicsView.ScrollHandDrag) self.setViewportUpdateMode(QGraphicsView.FullViewportUpdate) # Prepare background check-board pattern. tilePixmap = QPixmap(64, 64) tilePixmap.fill(Qt.white) tilePainter = QPainter(tilePixmap) color = QColor(220, 220, 220) tilePainter.fillRect(0, 0, 32, 32, color) tilePainter.fillRect(32, 32, 32, 32, color) tilePainter.end() self.setBackgroundBrush(QBrush(tilePixmap)) def drawBackground(self, p, rect): p.save() p.resetTransform() p.drawTiledPixmap(self.viewport().rect(), self.backgroundBrush().texture()) p.restore() def openFile(self, svg_file): if not svg_file.exists(): return s = self.scene() if self.backgroundItem: drawBackground = self.backgroundItem.isVisible() else: drawBackground = False if self.outlineItem: drawOutline = self.outlineItem.isVisible() else: drawOutline = True s.clear() self.resetTransform() self.svgItem = QGraphicsSvgItem(svg_file.fileName()) self.svgItem.setFlags(QGraphicsItem.ItemClipsToShape) self.svgItem.setCacheMode(QGraphicsItem.NoCache) self.svgItem.setZValue(0) self.backgroundItem = QGraphicsRectItem(self.svgItem.boundingRect()) self.backgroundItem.setBrush(Qt.white) self.backgroundItem.setPen(QPen(Qt.NoPen)) self.backgroundItem.setVisible(drawBackground) self.backgroundItem.setZValue(-1) self.outlineItem = QGraphicsRectItem(self.svgItem.boundingRect()) outline = QPen(Qt.black, 2, Qt.DashLine) outline.setCosmetic(True) self.outlineItem.setPen(outline) self.outlineItem.setBrush(QBrush(Qt.NoBrush)) self.outlineItem.setVisible(drawOutline) self.outlineItem.setZValue(1) s.addItem(self.backgroundItem) s.addItem(self.svgItem) s.addItem(self.outlineItem) s.setSceneRect(self.outlineItem.boundingRect().adjusted( -10, -10, 10, 10)) def setRenderer(self, renderer): self.renderer = renderer if self.renderer == SvgView.OpenGL: if QGLFormat.hasOpenGL(): self.setViewport(QGLWidget(QGLFormat(QGL.SampleBuffers))) else: self.setViewport(QWidget()) def setHighQualityAntialiasing(self, highQualityAntialiasing): if QGLFormat.hasOpenGL(): self.setRenderHint(QPainter.HighQualityAntialiasing, highQualityAntialiasing) def setViewBackground(self, enable): if self.backgroundItem: self.backgroundItem.setVisible(enable) def setViewOutline(self, enable): if self.outlineItem: self.outlineItem.setVisible(enable) def paintEvent(self, event): if self.renderer == SvgView.Image: if self.image.size() != self.viewport().size(): self.image = QImage(self.viewport().size(), QImage.Format_ARGB32_Premultiplied) imagePainter = QPainter(self.image) QGraphicsView.render(self, imagePainter) imagePainter.end() p = QPainter(self.viewport()) p.drawImage(0, 0, self.image) else: super(SvgView, self).paintEvent(event) def wheelEvent(self, event): factor = pow(1.2, event.delta() / 240.0) self.scale(factor, factor) event.accept()
class SvgView(QGraphicsView): Native, Image = range(2) clicked_event = pyqtSignal(QMouseEvent) double_click_event = pyqtSignal(QMouseEvent) wheel_event = pyqtSignal(QWheelEvent) def __init__(self, parent=None): super(SvgView, self).__init__(parent) self.renderer = SvgView.Native self.svgItem = None self.backgroundItem = None self.image = QImage() self.default_width = 0 self.default_height = 0 self.__tf_rotate = QTransform() self.__tf_scale = QTransform() self.setScene(QGraphicsScene(self)) def drawBackground(self, p: QPainter, rect: QRectF): p.save() p.resetTransform() p.drawTiledPixmap(self.viewport().rect(), self.backgroundBrush().texture()) p.restore() def openFile(self, svg_file: QFile): if not svg_file.exists(): return if self.backgroundItem: drawBackground = self.backgroundItem.isVisible() else: drawBackground = False s = self.scene() s.clear() self.resetTransform() self.svgItem = QGraphicsSvgItem(svg_file.fileName()) self.svgItem.setFlags(QGraphicsItem.ItemClipsToShape) self.svgItem.setCacheMode(QGraphicsItem.NoCache) self.svgItem.setZValue(0) tmp = self.svgItem.renderer().defaultSize() self.default_width = tmp.width() self.default_height = tmp.height() self.backgroundItem = QGraphicsRectItem(self.svgItem.boundingRect()) self.backgroundItem.setBrush(Qt.white) self.backgroundItem.setPen(QPen(Qt.NoPen)) self.backgroundItem.setVisible(drawBackground) self.backgroundItem.setZValue(-1) s.addItem(self.backgroundItem) s.addItem(self.svgItem) def setRenderer(self, renderer): self.renderer = renderer self.setViewport(QWidget()) def setViewBackground(self, enable): if self.backgroundItem: self.backgroundItem.setVisible(enable) def paintEvent(self, event: QPaintEvent): if self.renderer == SvgView.Image: if self.image.size() != self.viewport().size(): self.image = QImage(self.viewport().size(), QImage.Format_ARGB32_Premultiplied) imagePainter = QPainter(self.image) QGraphicsView.render(self, imagePainter) imagePainter.end() p = QPainter(self.viewport()) p.drawImage(0, 0, self.image) else: super(SvgView, self).paintEvent(event) def _setSize(self, width: float, height: float): self.__tf_scale = QTransform.fromScale(width / self.default_width, height / self.default_height) self.__tf() def _setAngle(self, angle: float): self.__tf_rotate = QTransform().rotate(angle) self.__tf() def __tf(self): self.setTransform(self.__tf_rotate * self.__tf_scale) def mouseReleaseEvent(self, event: QMouseEvent): self.clicked_event.emit(event) def mouseDoubleClickEvent(self, event: QMouseEvent): self.double_click_event.emit(event) def wheelEvent(self, event: QWheelEvent): self.wheel_event.emit(event)
class SvgView(QGraphicsView): Native, OpenGL, Image = range(3) def __init__(self, parent=None): super(SvgView, self).__init__(parent) self.renderer = SvgView.Native self.svgItem = None self.backgroundItem = None self.outlineItem = None self.image = QImage() self.setScene(QGraphicsScene(self)) self.setTransformationAnchor(QGraphicsView.AnchorUnderMouse) self.setDragMode(QGraphicsView.ScrollHandDrag) self.setViewportUpdateMode(QGraphicsView.FullViewportUpdate) # Prepare background check-board pattern. tilePixmap = QPixmap(64, 64) tilePixmap.fill(Qt.white) tilePainter = QPainter(tilePixmap) color = QColor(220, 220, 220) tilePainter.fillRect(0, 0, 32, 32, color) tilePainter.fillRect(32, 32, 32, 32, color) tilePainter.end() self.setBackgroundBrush(QBrush(tilePixmap)) def drawBackground(self, p, rect): p.save() p.resetTransform() p.drawTiledPixmap(self.viewport().rect(), self.backgroundBrush().texture()) p.restore() def openFile(self, svg_file): if not svg_file.exists(): return s = self.scene() if self.backgroundItem: drawBackground = self.backgroundItem.isVisible() else: drawBackground = False if self.outlineItem: drawOutline = self.outlineItem.isVisible() else: drawOutline = True s.clear() self.resetTransform() self.svgItem = QGraphicsSvgItem(svg_file.fileName()) self.svgItem.setFlags(QGraphicsItem.ItemClipsToShape) self.svgItem.setCacheMode(QGraphicsItem.NoCache) self.svgItem.setZValue(0) self.backgroundItem = QGraphicsRectItem(self.svgItem.boundingRect()) self.backgroundItem.setBrush(Qt.white) self.backgroundItem.setPen(QPen(Qt.NoPen)) self.backgroundItem.setVisible(drawBackground) self.backgroundItem.setZValue(-1) self.outlineItem = QGraphicsRectItem(self.svgItem.boundingRect()) outline = QPen(Qt.black, 2, Qt.DashLine) outline.setCosmetic(True) self.outlineItem.setPen(outline) self.outlineItem.setBrush(QBrush(Qt.NoBrush)) self.outlineItem.setVisible(drawOutline) self.outlineItem.setZValue(1) s.addItem(self.backgroundItem) s.addItem(self.svgItem) s.addItem(self.outlineItem) s.setSceneRect(self.outlineItem.boundingRect().adjusted(-10, -10, 10, 10)) def setRenderer(self, renderer): self.renderer = renderer if self.renderer == SvgView.OpenGL: if QGLFormat.hasOpenGL(): self.setViewport(QGLWidget(QGLFormat(QGL.SampleBuffers))) else: self.setViewport(QWidget()) def setHighQualityAntialiasing(self, highQualityAntialiasing): if QGLFormat.hasOpenGL(): self.setRenderHint(QPainter.HighQualityAntialiasing, highQualityAntialiasing) def setViewBackground(self, enable): if self.backgroundItem: self.backgroundItem.setVisible(enable) def setViewOutline(self, enable): if self.outlineItem: self.outlineItem.setVisible(enable) def paintEvent(self, event): if self.renderer == SvgView.Image: if self.image.size() != self.viewport().size(): self.image = QImage(self.viewport().size(), QImage.Format_ARGB32_Premultiplied) imagePainter = QPainter(self.image) QGraphicsView.render(self, imagePainter) imagePainter.end() p = QPainter(self.viewport()) p.drawImage(0, 0, self.image) else: super(SvgView, self).paintEvent(event) def wheelEvent(self, event): print(event.angleDelta().y()) factor = pow(1.2, event.angleDelta().y() / 240.0) self.scale(factor, factor) event.accept()
class SvgView(QGraphicsView): Native, OpenGL, Image = range(3) def __init__(self, parent=None): super(SvgView, self).__init__(parent) self.renderer = SvgView.Native self.svgItem = None self.backgroundItem = None self.outlineItem = None self.image = QImage() self.setScene(QGraphicsScene(self)) self.setTransformationAnchor(QGraphicsView.AnchorUnderMouse) self.setDragMode(QGraphicsView.ScrollHandDrag) self.setViewportUpdateMode(QGraphicsView.FullViewportUpdate) def drawBackground(self, p, rect): p.save() p.resetTransform() p.drawTiledPixmap(self.viewport().rect(), self.backgroundBrush().texture()) p.restore() def openFile(self, svg_file): if not svg_file.exists(): return s = self.scene() if self.backgroundItem: drawBackground = self.backgroundItem.isVisible() else: drawBackground = False if self.outlineItem: drawOutline = self.outlineItem.isVisible() else: drawOutline = True s.clear() self.resetTransform() self.svgItem = QGraphicsSvgItem(svg_file.fileName()) self.svgItem.setFlags(QGraphicsItem.ItemClipsToShape) self.svgItem.setCacheMode(QGraphicsItem.NoCache) self.svgItem.setZValue(0) s.addItem(self.svgItem) def setRenderer(self, renderer): self.renderer = renderer if self.renderer == SvgView.OpenGL: if QGLFormat.hasOpenGL(): self.setViewport(QGLWidget(QGLFormat(QGL.SampleBuffers))) else: self.setViewport(QWidget()) def setHighQualityAntialiasing(self, highQualityAntialiasing): if QGLFormat.hasOpenGL(): self.setRenderHint( QPainter.HighQualityAntialiasing, highQualityAntialiasing ) def setViewBackground(self, enable): if self.backgroundItem: self.backgroundItem.setVisible(enable) def setViewOutline(self, enable): if self.outlineItem: self.outlineItem.setVisible(enable) def paintEvent(self, event): if self.renderer == SvgView.Image: if self.image.size() != self.viewport().size(): self.image = QImage( self.viewport().size(), QImage.Format_ARGB32_Premultiplied ) imagePainter = QPainter(self.image) QGraphicsView.render(self, imagePainter) imagePainter.end() p = QPainter(self.viewport()) p.drawImage(0, 0, self.image) else: super(SvgView, self).paintEvent(event) def wheelEvent(self, event): factor = pow(1.2, event.angleDelta() / 240.0) self.scale(factor, factor) event.accept()