def mousePressEvent( self, event ):
# handle an internal move
# start a drag event
if event.button() == Qt.LeftButton and self.dragDropRect().contains(event.pos()):
# create the pixmap
pixmap = QPixmap.grabWidget(self, self.rect())
# create the mimedata
mimeData = QMimeData()
mimeData.setText('ItemTitle::%s' % (self.title()))
# create the drag
drag = QDrag(self)
drag.setMimeData(mimeData)
drag.setPixmap(pixmap)
drag.setHotSpot(event.pos())
if not drag.exec_():
self._accordianWidget.emitItemDragFailed(self)
event.accept()
# determine if the expand/collapse should occur
elif event.button() == Qt.LeftButton and self.expandCollapseRect().contains(event.pos()):
self._clicked = True
event.accept()
else:
event.ignore()
def setObjPic(self):
"""加载的是obj模型，设置obj的图片"""
pixmap = QPixmap(file_path + r"\res\image\objimg.jpg")
self.toolButton.setIcon(pixmap)
self.toolButton.setIconSize(self.size())
class ImageFieldWidget(FieldWidget, object):
def __init__(self, *args, **kwargs):
super(ImageFieldWidget, self).__init__(*args, **kwargs)
self._value = ''
self._pixmap = None
widget = label.BaseLabel(parent=self)
widget.setObjectName('widget')
self.setStyleSheet('min-height: 32px;')
widget.setScaledContents(False)
widget.setAlignment(Qt.AlignHCenter)
self.set_widget(widget)
self.layout().addStretch()
# =================================================================================================================
# OVERRIDES
# =================================================================================================================
def resizeEvent(self, event):
"""
Overrides FieldWidget resizeEvent function
Called when teh field widget is resized
:param event: QResizeEvent
"""
self.update()
def value(self):
"""
Implements FieldWidget value function
Returns the path of the image in disk
:return: str
"""
return self._value
def set_value(self, value):
"""
Overrides FileWidget set_value function
Sets the path of the image in disk
:param value: str
"""
self._value = value
self._pixmap = QPixmap(value)
self.update()
def update(self):
"""
Updates the image depending on the size
"""
if not self._pixmap:
return
width = self.widget().height()
if self.widget().width() > self.widget().height():
pixmap = self._pixmap.scaledToWidth(width, Qt.SmoothTransformation)
else:
pixmap = self._pixmap.scaledToHeight(width,
Qt.SmoothTransformation)
self.widget().setPixmap(pixmap)
self.widget().setAlignment(Qt.AlignLeft)
if __name__ == '__main__':
import sys
MouseCount = 70
app = QApplication(sys.argv)
scene = QGraphicsScene()
scene.setSceneRect(-300, -300, 600, 600)
scene.setItemIndexMethod(QGraphicsScene.NoIndex)
for i in range(MouseCount):
mouse = Chip(QColor(0.7, 0.4, 0.5))
mouse.setPos(
math.sin((i * 6.28) / MouseCount) * 200,
math.cos((i * 6.28) / MouseCount) * 200)
scene.addItem(mouse)
view = QGraphicsView(scene)
view.setRenderHint(QPainter.Antialiasing)
view.setBackgroundBrush(QBrush(QPixmap(':/cheese.jpg')))
view.setCacheMode(QGraphicsView.CacheBackground)
view.setViewportUpdateMode(QGraphicsView.BoundingRectViewportUpdate)
view.setDragMode(QGraphicsView.ScrollHandDrag)
view.setWindowTitle("Colliding Mice")
view.resize(400, 300)
view.show()
sys.exit(app.exec_())
