def paintEvent(self, event):
super(SelectArea, self).paintEvent(event)
painter = QPainter(self)
drawRegion = QRegion(self.pixmap.rect())
drawRegion = drawRegion.subtract(QRegion(self.selected))
painter.setClipRegion(drawRegion)
painter.setBrush(QBrush(QColor(0, 0, 0, 120)))
painter.drawRect(self.pixmap.rect())
painter.setClipping(False)
if self.selected:
# направляющие линии
painter.setPen(QPen(QColor(255, 255, 255)))
painter.setBrush(QBrush(QColor(0, 0, 0, 0)))
vertical = self.selected.normalized()
vertical.setLeft(-1)
vertical.setRight(self.pixmap.rect().right() + 1)
horizontal = self.selected.normalized()
horizontal.setTop(-1)
horizontal.setBottom(self.pixmap.rect().bottom() + 1)
painter.drawRects(
vertical,
horizontal
)
# координаты начала
bound = self.pixmap.rect()
bound.setBottomRight(self.selected.topLeft() - QPoint(5, 5))
painter.drawText(
bound,
Qt.AlignBottom | Qt.AlignRight,
'(%d, %d)' % (self.selected.topLeft().x(), self.selected.topLeft().y())
)
# ширина/высота
bound = self.pixmap.rect()
bound.setTopLeft(self.selected.bottomRight() + QPoint(5, 5))
painter.drawText(
bound,
Qt.AlignTop | Qt.AlignLeft,
'(%d, %d)' % (self.selected.width(), self.selected.height())
)
def paintEvent(self, QPaintEvent):
p = QPainter(self.viewport())
clipPath = QPainterPath()
clipPath.addEllipse(0, 0, 100, 100)
p.setRenderHint(QPainter.Antialiasing)
p.setClipPath(clipPath)
p.setClipping(False)
p.setPen(Qt.gray)
p.drawPath(clipPath)
self.update()
