src/preferences/time/Bitmaps.cpp

   1 /*
   2  * Copyright 2004-2007, Haiku, Inc. All Rights Reserved.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *              Andrew McCall <mccall@@digitalparadise.co.uk>
   7  *              Mike Berg <mike@berg-net.us>
   8  *              Julun <host.haiku@gmx.de>
   9  *
  10  */
  11
  12 #include "Bitmaps.h"
  13
  14
  15 #include <Debug.h>
  16 #include <Screen.h>
  17
  18
  19 void
  20 ReplaceTransparentColor(BBitmap* bitmap, rgb_color with)
  21 {
  22         // other color spaces not implemented yet
  23         ASSERT(bitmap->ColorSpace() == B_COLOR_8_BIT);
  24
  25         BScreen screen(B_MAIN_SCREEN_ID);
  26         uint32 withIndex = screen.IndexForColor(with);
  27
  28         uchar* bits = (uchar*)bitmap->Bits();
  29         int32 bitsLength = bitmap->BitsLength();
  30         for (int32 index = 0; index < bitsLength; index++)
  31                 if (bits[index] == B_TRANSPARENT_8_BIT)
  32                         bits[index] = withIndex;
  33 }