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C/C++ Source or Header  |  2002-04-04  |  3KB  |  105 lines
  1. /////////////////////////////////////////////////////////////////////////////
  2. // Name:        src/unix/utilsx11.cpp
  3. // Purpose:     Miscellaneous X11 functions
  4. // Author:      Mattia Barbon
  5. // Modified by:
  6. // Created:     25.03.02
  7. // RCS-ID:      $Id: utilsx11.cpp,v 1.5 2002/04/02 09:59:22 VZ Exp $
  8. // Copyright:   (c) wxWindows team
  9. // Licence:     wxWindows license
  10. /////////////////////////////////////////////////////////////////////////////
  11.  
  12. #if defined(__WXX11__) || defined(__WXGTK__) || defined(__WXMOTIF__)
  13.  
  14. #include "wx/unix/utilsx11.h"
  15. #include "wx/iconbndl.h"
  16. #include "wx/image.h"
  17. #include "wx/icon.h"
  18.  
  19. #ifdef __VMS
  20. #pragma message disable nosimpint
  21. #endif
  22. #include <X11/Xlib.h>
  23. #include <X11/Xatom.h>
  24. #ifdef __VMS
  25. #pragma message enable nosimpint
  26. #endif
  27.  
  28. void wxSetIconsX11( WXDisplay* display, WXWindow window,
  29.                     const wxIconBundle& ib )
  30. {
  31. #if !wxUSE_NANOX
  32.     size_t size = 0;
  33.     size_t i, max = ib.m_icons.GetCount();
  34.  
  35.     for( i = 0; i < max; ++i )
  36.         if( ib.m_icons[i].Ok() )
  37.             size += 2 + ib.m_icons[i].GetWidth() * ib.m_icons[i].GetHeight();
  38.  
  39.     Atom net_wm_icon = XInternAtom( (Display*)display, "_NET_WM_ICON", 0 );
  40.  
  41.     if( size > 0 )
  42.     {
  43.         wxUint32* data = new wxUint32[size];
  44.         wxUint32* ptr = data;
  45.  
  46.         for( i = 0; i < max; ++i )
  47.         {
  48.             const wxImage image = ib.m_icons[i].ConvertToImage();
  49.             int width = image.GetWidth(), height = image.GetHeight();
  50.             unsigned char* imageData = image.GetData();
  51.             unsigned char* imageDataEnd = imageData + ( width * height * 3 );
  52.             bool hasMask = image.HasMask();
  53.             unsigned char rMask, gMask, bMask;
  54.             unsigned char r, g, b, a;
  55.  
  56.             if( hasMask )
  57.             {
  58.                 rMask = image.GetMaskRed();
  59.                 gMask = image.GetMaskGreen();
  60.                 bMask = image.GetMaskBlue();
  61.             }
  62.             else // no mask, but still init the variables to avoid warnings
  63.             {
  64.                 rMask =
  65.                 gMask =
  66.                 bMask = 0;
  67.             }
  68.  
  69.             *ptr++ = width;
  70.             *ptr++ = height;
  71.  
  72.             while( imageData < imageDataEnd ) {
  73.                 r = imageData[0];
  74.                 g = imageData[1];
  75.                 b = imageData[2];
  76.                 if( hasMask && r == rMask && g == gMask && b == bMask )
  77.                     a = 0;
  78.                 else
  79.                     a = 255;
  80.  
  81.                 *ptr++ = ( a << 24 ) | ( r << 16 ) | ( g << 8 ) | b;
  82.  
  83.                 imageData += 3;
  84.             }
  85.         }
  86.  
  87.         XChangeProperty( (Display*)display,
  88.                          (Window)window,
  89.                          net_wm_icon,
  90.                          XA_CARDINAL, 32,
  91.                          PropModeReplace,
  92.                          (unsigned char*)data, size );
  93.         delete[] data;
  94.     }
  95.     else
  96.     {
  97.         XDeleteProperty( (Display*)display,
  98.                          (Window)window,
  99.                          net_wm_icon );
  100.     }
  101. #endif
  102. }
  103.  
  104. #endif
  105.