def paintEvent(self, paintEvent: QPaintEvent): painter = QPainter(self) painter.setBackgroundMode(Qt.TransparentMode) painter.setRenderHint(QPainter.Antialiasing) brush = QBrush() brush.setStyle(Qt.SolidPattern) pen = QPen() pen.setJoinStyle(Qt.RoundJoin) pen.setCapStyle(Qt.RoundCap) center = QPoint(self.width() // 2, self.height() // 2) radius = 0.45 * min(self.width(), self.height()) pen.setColor(self.palette().color(self.color[0])) brush.setColor(self.palette().color(self.color[1])) if self.highlight is True: pen.setColor(self.palette().color(QPalette.Highlight)) pen.setWidth(round(0.15 * radius)) painter.setBrush(brush) painter.setPen(pen) painter.drawEllipse(center, radius, radius) if self.checked is True: brush.setColor(self.palette().color(QPalette.Background)) pen.setColor(self.palette().color(QPalette.Background)) painter.setPen(pen) painter.setBrush(brush) painter.drawEllipse(center, 0.40 * radius, 0.40 * radius) del painter, brush, pen
def paintEvent(self, paintEvent: QPaintEvent): pen = QPen() pen.setJoinStyle(Qt.RoundJoin) pen.setCapStyle(Qt.RoundCap) painter = QPainter(self) painter.translate(self.paintOffset) painter.setBackgroundMode(Qt.TransparentMode) painter.setRenderHint(QPainter.Antialiasing) if self.nodes is not None: painted = set() def paintNode(node): nonlocal painter, painted if node in painted: return painted.add(node) for link in node.links: if link not in painted: painter.drawLine(node.point, link.point) paintNode(link) color = self.palette().color(QPalette.Dark) pen.setColor(color) pen.setWidth(0.50 * self.paintStep) painter.setPen(pen) for node in self.nodes.values(): if paintEvent.region().contains(node.point): paintNode(node) if self.startNode is not None: color = self.palette().color(QPalette.Dark) pen.setColor(color) pen.setWidth(0.75 * self.paintStep) painter.setPen(pen) if paintEvent.region().contains(self.startNode.point): painter.drawPoint(self.startNode.point) if self.finishNode is not None and paintEvent.region().contains(self.finishNode.point): color = self.palette().color(QPalette.Dark).darker(120) pen.setColor(color) pen.setWidth(0.75 * self.paintStep) painter.setPen(pen) painter.drawPoint(self.finishNode.point) if self.player is not None: color = self.palette().color(QPalette.Highlight) color.setAlpha(196) pen.setColor(color) pen.setWidth(0.90 * self.paintStep) painter.setPen(pen) painter.drawPoint(self.player) del painter, pen
def paint(self, painter: QPainter, option: QStyleOptionGraphicsItem, widget: QWidget = None): painter.setBackgroundMode(Qt.OpaqueMode) # painter.setBackground(Qt.white) painter.setBrush(self._background_brush) painter.drawEllipse(self.rect()) painter.setBrush(self.brush()) painter.setPen(self.pen()) painter.drawEllipse(self.rect())