def paintEvent(self, event: QPaintEvent): outerRadius = min(self.width(), self.height()) baseRect = QRectF(1, 1, outerRadius - 2, outerRadius - 2) buffer = QImage(outerRadius, outerRadius, QImage.Format_ARGB32_Premultiplied) p = QPainter(buffer) p.setRenderHint(QPainter.Antialiasing) self.rebuildDataBrushIfNeeded() self.drawBackground(p, buffer.rect()) self.drawBase(p, baseRect) if self.m_value > 0: delta = (self.m_max - self.m_min) / (self.m_value - self.m_min) else: delta = 0 self.drawValue(p, baseRect, self.m_value, delta) innerRect, innerRadius = self.calculateInnerRect(outerRadius) self.drawInnerBackground(p, innerRect) self.drawText(p, innerRect, innerRadius, self.m_value) p.end() painter = QPainter(self) painter.fillRect(baseRect, self.palette().window()) painter.drawImage(0, 0, buffer)
def paintEvent(self, event): """ Paint the widget. """ super(WaTorGraph, self).paintEvent(event) painter = QPainter(self) fish, sharks = self._world.stats() shark = self.helper_calc_y_pos(sharks) fish = self.helper_calc_y_pos(fish) draw = ImageDraw.Draw(self._image) draw.line([(self._prev_tick, self._prev_shark), (self._tick, shark)], (0, 0, 255), 2) draw.line([(self._prev_tick, self._prev_fish), (self._tick, fish)], (0, 255, 0), 2) painter.drawImage(QPoint(0, 0), ImageQt(self._image)) painter.end() self._prev_tick = self._tick self._prev_shark = shark self._prev_fish = fish self._tick += 2 if self._tick >= self._widget_size.width(): self.reset()
def image_display(self): """ Update the ct_image to be displayed on the DICOM View. """ # Lead CT ct_pixmaps = self.pt_ct_dict_container.get( "ct_pixmaps_" + self.slice_view) slider_id = self.slider.value() ct_image = ct_pixmaps[slider_id].toImage() # Load PT pt_pixmaps = self.pt_ct_dict_container.get( "pt_pixmaps_" + self.slice_view) m = float(len(pt_pixmaps)) / len(ct_pixmaps) pt_image = pt_pixmaps[int(m * slider_id)].toImage() # Get alpha alpha = float(self.alpha_slider.value() / 100) # Merge Images painter = QPainter() painter.begin(ct_image) painter.setOpacity(alpha) painter.drawImage(0, 0, pt_image) painter.end() # Load merged images merged_pixmap = QtGui.QPixmap.fromImage(ct_image) label = QtWidgets.QGraphicsPixmapItem(merged_pixmap) self.scene = QtWidgets.QGraphicsScene() self.scene.addItem(label)
def paintEvent(self, event): painter = QPainter(self) output_size = QSize() if self.mode == Mode.PngMode: output_size = self.zoomed_image.size() output_rect = QRect(QPoint(), output_size) output_rect.translate(self.rect().center() - output_rect.center()) painter.drawImage(output_rect.topLeft(), self.zoomed_image) elif self.mode == Mode.SvgMode: output_size = self.svgRenderer.defaultSize() if self.zoom_scale != ZOOM_ORIGINAL_SCALE: zoom = float(self.zoom_scale) / ZOOM_ORIGINAL_SCALE output_size.scale(output_size.width() * zoom, output_size.height() * zoom, Qt.IgnoreAspectRatio) output_rect = QRect(QPoint(), output_size) output_rect.translate(self.rect().center() - output_rect.center()) self.svgRenderer.render(painter, output_rect) self.setMinimumSize(output_size)
def paintEvent(self, event): super(MouseEventMixin, self).paintEvent(event) if not self.__image: return if self.__image.height() == 0 or self.height( ) == 0 or self.__image.width() == 0: return image_aspect_ratio = self.__image.width() / self.__image.height() view_aspect_ratio = self.width() / self.height() if view_aspect_ratio <= image_aspect_ratio: image_height = self.width() / image_aspect_ratio rect = QRectF(0, (self.height() - image_height) / 2, self.width(), image_height) else: image_widh = self.height() * image_aspect_ratio rect = QRectF((self.width() - image_widh) / 2, 0, image_widh, self.height()) painter = QPainter(self.viewport()) painter.drawImage(rect, self.__image) painter.end()
def paintEvent(self, event): p = QPainter(self) p.drawImage(self.rect(), self.image) p.drawRect(self.rect())