在wxPython中创建成形窗口的最简单方法是什么? [英] What is the simplest way to create a shaped window in wxPython?

问题描述

我想在wxPython中创建一个简单的形状的窗口.我或多或少想要做与Tkinter的 self.overrideredirect(1)等效的wx(它摆脱了默认的OS边界)，然后在窗口上四角.

I'd like to create a simple shaped window in wxPython. More or less I want to do the wx equivalent to Tkinter's self.overrideredirect(1) (It get's rid of the default OS boarder), then round the corners on the window.

推荐答案

wxPython演示中有一个定型框架演示.对于间接来源，我深表歉意.它们最初是作为Windows安装程序出现的这里:

There's a shaped frame demo in the wxPython demos. I apologize for the indirect source. They originally came as a windows installer here:

源代码

您将要查看shaped_frame_mobile.py或shaped_frame.py，它们都从该列表中调用了image.py作为示例窗口位图.它与overrideredirect并不完全等效，因为您必须提供要为框架绘制的图像，但是它仍然可以帮助您完成类似的操作.

You'll want to look at shaped_frame_mobile.py or shaped_frame.py, which both call images.py from that listing for the sample window bitmap. It's not the exact equivalent to overrideredirect since you will have to provide an image to be drawn for the frame, but it could still help you accomplish something similar.

重要的部分是根据位图设置窗口形状并处理wx.EVT_PAINT事件的函数:

The important parts are the functions that set the window shape based on the bitmap and handle the wx.EVT_PAINT event:

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-这是修改后的shaped_frame_mobile.py，它加载了IMAGE_PATH变量中指定的.png图像.将其更改为指向您的图片:

Edit - Here's an altered shaped_frame_mobile.py that loads the .png image specified in the IMAGE_PATH variable. Change that to point to your image:

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()

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