Python 在PyQt4中重置QViewPort缩放因子的最有效方法
我正在开发一个简单的电路模拟器,我在鼠标滚轮上添加了一个缩放选项,因为它可能对大型项目有用:Python 在PyQt4中重置QViewPort缩放因子的最有效方法,python,qt,user-interface,pyqt,pyqt4,Python,Qt,User Interface,Pyqt,Pyqt4,我正在开发一个简单的电路模拟器,我在鼠标滚轮上添加了一个缩放选项,因为它可能对大型项目有用: def wheelEvent(self, event): self.setTransformationAnchor(QtGui.QGraphicsView.AnchorUnderMouse) zoomInFactor = 1.15 zoomOutFactor = 1 / 1.15 if event.delta() > 0 and self.zoomLevel &
def wheelEvent(self, event):
self.setTransformationAnchor(QtGui.QGraphicsView.AnchorUnderMouse)
zoomInFactor = 1.15
zoomOutFactor = 1 / 1.15
if event.delta() > 0 and self.zoomLevel < 3:
self.scale(zoomInFactor, zoomInFactor)
self.zoomLevel = self.zoomLevel*zoomInFactor
elif event.delta() < 0 and self.zoomLevel > 1/3.0:
self.scale(zoomOutFactor, zoomOutFactor)
self.zoomLevel = self.zoomLevel*zoomOutFactor
有没有办法将视口重置为其真实初始大小?由于某些原因,我在任何地方都找不到此信息。看起来我应该做你想做的事。谢谢,这正是我要找的。
def resetZoom(self):
self.scale(1/self.zoomLevel, 1/self.zoomLevel)
self.zoomLevel = 1