在wxPython中创建一个形状窗口最简单的方法是什么？

Question

我想在wxPython中创建一个简单形状的窗口。或多或少，我想要做的WX相当于Tkinter的self.overrideredirect（1）（它摆脱了默认的操作系统边界），然后绕过窗口的角落。

Answer 1

wxPython演示中有一个有形的框架演示。我为间接来源道歉。他们本来就以Windows安装程序here：

source code

你会想看看shaped_frame_mobile.py或shaped_frame.py，这两个呼叫images.py从采样窗口位图上市。这与overrideredirect并不完全相同，因为您必须提供用于框架的图像，但它仍可以帮助您完成类似的操作。

的重要部分是设置基于位图的窗口形状的功能和处理wx.EVT_PAINT事件：

def SetWindowShape(self, evt=None): 
    r = wx.RegionFromBitmap(self.bmp) 
    self.hasShape = self.SetShape(r) 

def OnPaint(self, evt): 
    dc = wx.PaintDC(self) 
    dc.DrawBitmap(self.bmp, 0,0, True) 

编辑 - 下面是一个改变shaped_frame_mobile.py加载在IMAGE_PATH指定的PNG图片变量。将其改为指向您的图像：

import wx 

# Create a .png image with something drawn on a white background 
# and put the path to it here. 
IMAGE_PATH = '/python26/projects/shapedwin/image.png' 


class ShapedFrame(wx.Frame): 
    def __init__(self): 
     wx.Frame.__init__(self, None, -1, "Shaped Window", 
       style = wx.FRAME_SHAPED | wx.SIMPLE_BORDER) 
     self.hasShape = False 
     self.delta = wx.Point(0,0) 

     # Load the image 
     image = wx.Image(IMAGE_PATH, wx.BITMAP_TYPE_PNG) 
     image.SetMaskColour(255,255,255) 
     image.SetMask(True)    
     self.bmp = wx.BitmapFromImage(image) 

     self.SetClientSize((self.bmp.GetWidth(), self.bmp.GetHeight())) 
     dc = wx.ClientDC(self) 
     dc.DrawBitmap(self.bmp, 0,0, True) 
     self.SetWindowShape() 
     self.Bind(wx.EVT_LEFT_DCLICK, self.OnDoubleClick) 
     self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown) 
     self.Bind(wx.EVT_LEFT_UP, self.OnLeftUp) 
     self.Bind(wx.EVT_MOTION, self.OnMouseMove) 
     self.Bind(wx.EVT_RIGHT_UP, self.OnExit) 
     self.Bind(wx.EVT_PAINT, self.OnPaint) 
     self.Bind(wx.EVT_WINDOW_CREATE, self.SetWindowShape) 

    def SetWindowShape(self, evt=None): 
     r = wx.RegionFromBitmap(self.bmp) 
     self.hasShape = self.SetShape(r) 

    def OnDoubleClick(self, evt): 
     if self.hasShape: 
      self.SetShape(wx.Region()) 
      self.hasShape = False 
     else: 
      self.SetWindowShape() 

    def OnPaint(self, evt): 
     dc = wx.PaintDC(self) 
     dc.DrawBitmap(self.bmp, 0,0, True) 

    def OnExit(self, evt): 
     self.Close() 

    def OnLeftDown(self, evt): 
     self.CaptureMouse() 
     pos = self.ClientToScreen(evt.GetPosition()) 
     origin = self.GetPosition() 
     self.delta = wx.Point(pos.x - origin.x, pos.y - origin.y) 

    def OnMouseMove(self, evt): 
     if evt.Dragging() and evt.LeftIsDown(): 
      pos = self.ClientToScreen(evt.GetPosition()) 
      newPos = (pos.x - self.delta.x, pos.y - self.delta.y) 
      self.Move(newPos) 

    def OnLeftUp(self, evt): 
     if self.HasCapture(): 
      self.ReleaseMouse() 



if __name__ == '__main__': 
    app = wx.PySimpleApp() 
    ShapedFrame().Show() 
    app.MainLoop()