wxpython如何使用图标_如何使用wxpython在图标（而不是位图）上绘制非透明文本？...

简短回答：在我看来，这段wx代码中有一个bug。我要报告一下，看看结果如何。在

冗长的回答：你可以随心所欲。设置图像中不使用的颜色。然后使用该颜色绘制，完成后，固定这些像素的alpha值和颜色，以符合您的期望：import wx

from wx import ImageFromStream, BitmapFromImage, EmptyIcon

import cStringIO, zlib

# ================================ ICON ======================================

def getData():

return zlib.decompress(

'x\xda\x01\x97\x03h\xfc\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x10\

\x00\x00\x00\x10\x08\x06\x00\x00\x00\x1f\xf3\xffa\x00\x00\x00\x04sBIT\x08\

\x08\x08\x08|\x08d\x88\x00\x00\x03NIDAT8\x8dm\xd2ML\x9bu\x00\xc7\xf1\xef\xf3\

\xc6\xc3b\xe2\xd1y0Y2\xa3q^\xcc\xb8\x9a\xb9\xf9rQc\xc6\x0es\xa4\xd1\x91\xe98\

\xc8\x96\xb98H\xc3\x8b\xc0\xc6\x00\x91\xd2\xb2\xa7}\xda\xe7\xa5\xcf\xd3\xf6\

\xf9{0\xa2\x07\xbf\xf7_\xf29\xfc$\x00\xf1>\xb2\xd9\xc7\tI0$\xc0\xd5d\x06\xa5\

\x17q\xf9O\xa5\x0b$$\x85KB\xa2\xec\xcb\xbc\x1e}\x81\xdf\x01$q\x9a`>\xce\xc9`\

\xc7\x91#\xa1\xce\xa3;\xed\xdbg\xb3s\x19c\xe1\x9cz\xbe*A\x0f\x80\x80\xf4A\

\xeb\xb0\xfcPG\xa2;\x10\x8aI\xe5\xd9\x93\x8bB\xe6`l\x88U)\xf3-\xc7\xc3\xbb_{\

;r\xef\xe1Vci\xa4\xb0\xbc:\x17\xb8\xdczQ\xd3B5"A\x1f\x00\xa7"\xe39\x16\xfb\

\xd6_\xb1wu\x1f@\xa9\x15-k\xe6\xd4j\xa2D\xbf\xec\x95\x91\xe5PGX_\x18),.\xcei\

W\xdb\xbf\xd3:\xb7{49\x0e\xeem\x1dkAG+Z\xb4l\xdf\xc6o-\xc3\xea\x9fK\xbf\x84\

\xe5\xa6\xfe&\xa1>\xa8\xad)\xec\x96n}\xc6`E\xa8g7\x95d\xdbD\xf2\x82\xda\xae\

\x06\x08\xd95\x1e\xeej\xa2\xa1^F \xa1\x1b5\xae\xcf\xe5\xa8D\x14\xea\xf4\xf3\

\xdco\x9es\xb7\x9933\xe1Z\xe9U\t\xe0\xd8\xe7\x17?\t4\xecz7\x99\xd0hp\x05\x87\

\xf6u\x927\x0c6-\x87\xf6\xd6\x16\x00\xaa\x02\xbeN\xdd\xc2\xd7\x04\x99\xec:9K\

\xf9\xf8\xd37\x07\x8e\xcb\x00\x99\xca=\xbd\xbe\x00\xbf\xe4\xb1wO\x0c\xbb*\

\x08\x06\x83\x8c\xfd\xf8\x03E\xc3\xa0\xe2\xba\\\x1a\xfb\x99\xee=q\x8c\xac\

\x83#7RtC\x03\x00\x01\x80r\xd9\xea\xa9z2\x86\xeb\x13\x8bEpk\x82:U\xe5\x8f\

\x95\x15\xc6~\x1a\'=5\xc9\xb3\xcf\xef\xa7q\x87Jn\xd3A4\x04)\x97\xad\x1e\x00\

\x19\xc0\xb3-,\xbb\x82\xe3\xf9\xb85\xa8\xf8\x905J\xd4i\x1a\xe9\xa9I^:0\xc4#\

\xbd}\xb8U\xa8x>\x96]\xc1\xb3-\xb6\x04^\xd9N\x17K\x91gv\xc6\x03,el\xeek\x8b\

\x82\x1c\xe6\xd1\xc7\xfby\xa0g/j\xb4\x1e\xd3\x85\xd5\x8cE0"\x91+\xd9xe;\xfd\

\xaf\xc0\xb1\xae\x14\r\x03\xbd\xecr\xf5\xe6\x06\xc1\x10\xd4\x85\x83<5\xf8$\

\xf1\xc6zB\x80\x16\x86_of\xf1\xf0(\x1a\x06\x9ec]\xd9\x12\xb8\xb63\xea:\xe6\

\xa1\xd9\x9a\xd2-\xb7U\xf9bD\xf0\\o\x82\xaeD\x1d\x08X\xc9Z\x8c^\xcbP4\xd6\

\x99\xdf\xb00\xf3k3\x08e\x14@\xfa\xe7\xeb}GO\xbd\xf5Xr\xc7\xf0BAS[\xe3\x1a\

\xb1P\x08\xc5\x97\xa9\xf9\x82\x8aT\xc5\xf0\\\xaa\xd5*\xaa\xb8k\xa7\xefl\xbes\

\xfd\xcc\xb1\xd3[\x02\x80\xe17\x9e\x98\x8fF\xa3jv3_;12\xaf\xccJ*\xb2\x12\x06\

\xc0\xaf\x95iV+\xbc\xf7rR\xc8rcD\xa2kv\xe0\xcc\xdf;\x19 \x95J5\x17\n\x85\xef\

\xc3\xe10f\xa9`\x98\xf9;\x1f\xda\xb9\xe9qk\xe3\x86nm\xdc\xd0\xed\xdc\xf4\xf8\

\xf2\xf2\xfc\x07\x85B\xdel\x8e\xc7%]\xd7/\xa7R\xa9\xe4\x96\xc04M\xc7q\x9c\

\xb5\x89\x89\x89N!\xc4\xd3S\xdf|4\xcd\xfftw\xff\x97_]\xd3\xf5I\xc0\xf2}\xdf\

\x02\xf8\x0b\xc1.\x9e\xd8Y.\x85\x85\x00\x00\x00\x00IEND\xaeB`\x822\x86\xba\

\xb3' )

def getBitmap():

return BitmapFromImage(getImage())

def getImage():

stream = cStringIO.StringIO(getData())

return ImageFromStream(stream)

def getIcon():

icon = EmptyIcon()

icon.CopyFromBitmap(getBitmap())

return icon

# ============================================================================

class MainWindow(wx.Frame):

def __init__(self, *args, **kwargs):

wx.Frame.__init__(self, *args, **kwargs)

self.number = 0

self.Bind(wx.EVT_CLOSE, self.OnClose)

self.panel = wx.Panel(self)

self.button = wx.Button(self.panel, label="Test")

self.button.Bind(wx.EVT_BUTTON, self.OnButton)

self.tbicon = wx.TaskBarIcon()

self.tbicon.SetIcon(getIcon(), "Test")

self.sizer = wx.BoxSizer()

self.sizer.Add(self.button)

self.panel.SetSizerAndFit(self.sizer)

self.Show()

#

def OnClose(self, e):

self.tbicon.Destroy()

self.Destroy()

wx.Exit()

#

def OnButton(self, e):

# HERE WE GO!

self.number += 1

bitmap = getBitmap()

# Find unused color

image = bitmap.ConvertToImage()

my_solid_color = wx.Color(*image.FindFirstUnusedColour(0, 0, 0)[1:])

# Use the unused *unique* color to draw

dc = wx.MemoryDC()

dc.SetTextForeground(my_solid_color)

dc.SelectObject(bitmap)

dc.DrawText(str(self.number), 0, 0)

dc.SelectObject(wx.NullBitmap)

# Convert the bitmap to Image again

# and fix the alpha of pixels with that color

image = bitmap.ConvertToImage()

for x in range(image.GetWidth()):

for y in range(image.GetHeight()):

p = wx.Colour(image.GetRed(x, y),

image.GetGreen(x, y),

image.GetBlue(x, y))

if p == my_solid_color:

image.SetAlpha(x, y, 255) # Clear the alpha

image.SetRGB(x, y, 0, 0, 0) # Set the color that we want

# Convert back to Bitmap and save to Icon

bitmap = image.ConvertToBitmap()

icon = wx.IconFromBitmap(bitmap)

self.tbicon.SetIcon(icon, "Test")

app = wx.App(False)

win = MainWindow(None)

app.MainLoop()

注意：A必须添加一些图标。你可以忽略这部分代码。在