I wasn't ready to add this yet.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/Phoenix/trunk@71834 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wx/lib/imageutils.py

@@ -1,98 +0,0 @@
-#----------------------------------------------------------------------
-# Name:        wx.lib.imageutils
-# Purpose:     A collection of functions for simple image manipulations
-#
-# Author:      Robb Shecter
-#
-# Created:     7-Nov-2002
-# RCS-ID:      $Id$
-# Copyright:   (c) 2002 by
-# Licence:     wxWindows license
-#----------------------------------------------------------------------
-
-import wx
-
-def grayOut(anImage):
-    """
-    Convert the given image (in place) to a grayed-out
-    version, appropriate for a 'disabled' appearance.
-    """
-    factor = 0.7        # 0 < f < 1.  Higher is grayer.
-    if anImage.HasMask():
-        maskColor = (anImage.GetMaskRed(), anImage.GetMaskGreen(), anImage.GetMaskBlue())
-    else:
-        maskColor = None
-    if anImage.HasAlpha():
-        alpha = anImage.GetAlphaData()
-    else:
-        alpha = None
-        
-    data = map(ord, list(anImage.GetData()))
-
-    for i in range(0, len(data), 3):
-        pixel = (data[i], data[i+1], data[i+2])
-        pixel = makeGray(pixel, factor, maskColor)
-        for x in range(3):
-            data[i+x] = pixel[x]
-    anImage.SetData(''.join(map(chr, data)))
-    if alpha:
-        anImage.SetAlphaData(alpha)
-        
-
-def makeGray((r,g,b), factor, maskColor):
-    """
-    Make a pixel grayed-out. If the pixel
-    matches the maskColor, it won't be
-    changed.
-    """
-    if (r,g,b) != maskColor:
-        return map(lambda x: int((230 - x) * factor) + x, (r,g,b))
-    else:
-        return (r,g,b)
-
-
-
-def stepColour(c, step):
-    """
-    stepColour is a utility function that simply darkens or lightens a
-    color, based on the specified step value.  A step of 0 is
-    completely black and a step of 200 is totally white, and 100
-    results in the same color as was passed in.
-    """
-    def _blendColour(fg, bg, dstep):
-        result = bg + (dstep * (fg - bg))
-        if result < 0:
-            result = 0
-        if result > 255:
-            result = 255
-        return result
-
-    if step == 100:
-        return c
-        
-    r = c.Red()
-    g = c.Green()
-    b = c.Blue()
-    
-    # step is 0..200 where 0 is completely black
-    # and 200 is completely white and 100 is the same
-    # convert that to a range of -1.0 .. 1.0
-    step = min(step, 200)
-    step = max(step, 0)
-    dstep = (step - 100.0)/100.0
-    
-    if step > 100:
-        # blend with white
-        bg = 255.0
-        dstep = 1.0 - dstep  # 0 = transparent fg; 1 = opaque fg
-    else:
-        # blend with black
-        bg = 0.0
-        dstep = 1.0 + dstep;  # 0 = transparent fg; 1 = opaque fg
-    
-    r = _blendColour(r, bg, dstep)
-    g = _blendColour(g, bg, dstep)
-    b = _blendColour(b, bg, dstep)
-    
-    return wx.Colour(int(r), int(g), int(b))
-