在 wxPython 中创建异形窗口的最简单方法是什么？

Question

我想在 wxPython 中创建一个简单形状的窗口。或多或少我想做相当于 Tkinter 的 self.overrideredirect(1) 的 wx （它摆脱了默认的操作系统边框），然后圆化窗口的角。

Answer 1

wxPython 演示中有一个异形框架演示。我对间接来源表示歉意。它们最初作为 Windows 安装程序 此处：

源代码

您需要查看 Shaped_frame_mobile。 py 或 Shaped_frame.py，它们都从示例窗口位图的列表中调用 images.py。它并不完全等同于overrideredirect，因为您必须提供要为框架绘制的图像，但它仍然可以帮助您完成类似的任务。

重要的部分是基于位图设置窗口形状并处理 wx.EVT_PAINT 事件的函数：

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 - 这是一个更改的 shape_frame_mobile.py，它加载 IMAGE_PATH 变量中指定的 .png 图像。将其更改为指向您的图像：

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()

Answer 2

伙计们，我知道有一个公认的答案，我在 ubuntu 和 python 2.x 中使用了该答案，但是当我尝试在 windows python 3.x 上使用它时，它不起作用。所以我经过小研究后修复了它（wx.Region需要透明颜色，请参见下面的代码）。并改变了几个折旧方法：

import wx

IMAGE_PATH = ".\Images\myImageFile.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

        self.bmp = wx.Image(IMAGE_PATH, wx.BITMAP_TYPE_ANY).ConvertToBitmap()
        #self.bmp = wx.Bitmap(image)

        self.transparentColour = wx.Colour(255, 255, 255, alpha=wx.ALPHA_OPAQUE)

        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.Region(self.bmp , self.transparentColour)
        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.App()
    ShapedFrame().Show()
    app.MainLoop()