检测wxpython中的拖动

Question

顾名思义，我正试图在wxpython中运行一个函数，该函数在鼠标点击和拖动时激活，并能够检测拖动方向。从我的研究中我发现这是一个wx。MouseEvent，但我没有找到任何实际的例子来帮助我理解如何使用它。有人能帮忙吗？

Answer 1

这里有一个简单的例子：

import wx
class MyFrame(wx.Frame):
def __init__(self):
super().__init__(None, -1, pos=(300, 150), size=(320, 250))
self.panel = wx.Panel(self)
self.text = wx.StaticText(self.panel, -1, label="Left click mouse, move and release")
self.panel.Bind(wx.EVT_LEFT_DOWN, self.OnDown)
self.panel.Bind(wx.EVT_LEFT_UP, self.OnUp)
self.panel.Bind(wx.EVT_MOTION, self.OnDrag)
self.Show()
def OnDown(self, event):
x, y = event.GetPosition()
print("Click coordinates: X=",x," Y=",y)
def OnUp(self, event):
x, y = event.GetPosition()
print("Release coordinates: X=",x," Y=",y)
def OnDrag(self, event):
x, y = event.GetPosition()
if not event.Dragging():
event.Skip()
return
event.Skip()        
#obj = event.GetEventObject()
#sx, sy = obj.GetScreenPosition()
#self.Move(sx+x,sy+y)
print("Dragging position", x, y)

app = wx.App()
window = MyFrame()
app.MainLoop()