src/unix/utilsx11.cpp

   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:      $Id$
   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