def drawZoom(self, qp, overlay):
# Zoom disabled?
if not self.zoom:
return
# No image
if self.image.isNull() or not self.w or not self.h:
return
# No mouse
if not self.mousePosOrig:
return
# Abbrevation for the zoom window size
zoomSize = self.zoomSize
# Abbrevation for the mouse position
mouse = self.mousePosOrig
# The pixel that is the zoom center
pix = self.mousePosScaled
# The size of the part of the image that is drawn in the zoom window
selSize = zoomSize / (self.zoomFactor * self.zoomFactor)
# The selection window for the image
sel = QtCore.QRectF(pix.x() - selSize / 2, pix.y() - selSize / 2, selSize, selSize)
# The selection window for the widget
view = QtCore.QRectF(mouse.x() - zoomSize / 2, mouse.y() - zoomSize / 2, zoomSize, zoomSize)
if overlay:
overlay_scaled = overlay.scaled(self.image.width(), self.image.height())
else:
overlay_scaled = QtGui.QImage(self.image.width(), self.image.height(),
QtGui.QImage.Format_ARGB32_Premultiplied)
# Show the zoom image
qp.save()
qp.drawImage(view, self.image, sel)
qp.setOpacity(self.transp)
qp.drawImage(view, overlay_scaled, sel)
qp.restore()
def getBoundingBox(self, obj):
bbox = QtCore.QRectF(obj.bbox[0], obj.bbox[1], obj.bbox[2], obj.bbox[3])
bboxVis = QtCore.QRectF(obj.bboxVis[0], obj.bboxVis[1], obj.bboxVis[2], obj.bboxVis[3])
return bbox, bboxVis