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     size_t size = 0;
  32     size_t i, max = ib.m_icons.GetCount();
  33
  34     for( i = 0; i < max; ++i )
  35         size += 2 + ib.m_icons[i].GetWidth() * ib.m_icons[i].GetHeight();
  36
  37     Atom net_wm_icon = XInternAtom( (Display*)display, "_NET_WM_ICON", 0 );
  38
  39     if( size > 0 )
  40     {
  41         wxUint32* data = new wxUint32[size];
  42         wxUint32* ptr = data;
  43
  44         for( i = 0; i < max; ++i )
  45         {
  46             const wxImage image = ib.m_icons[i].ConvertToImage();
  47             int width = image.GetWidth(), height = image.GetHeight();
  48             unsigned char* imageData = image.GetData();
  49             unsigned char* imageDataEnd = imageData + ( width * height * 3 );
  50             bool hasMask = image.HasMask();
  51             unsigned char rMask, gMask, bMask;
  52             unsigned char r, g, b, a;
  53
  54             if( hasMask )
  55             {
  56                 rMask = image.GetMaskRed();
  57                 gMask = image.GetMaskGreen();
  58                 bMask = image.GetMaskBlue();
  59             }
  60
  61             *ptr++ = width;
  62             *ptr++ = height;
  63
  64             while( imageData < imageDataEnd ) {
  65                 r = imageData[0];
  66                 g = imageData[1];
  67                 b = imageData[2];
  68                 if( hasMask && r == rMask && g == gMask && b == bMask )
  69                     a = 0;
  70                 else
  71                     a = 255;
  72
  73                 *ptr++ = ( a << 24 ) | ( r << 16 ) | ( g << 8 ) | b;
  74
  75                 imageData += 3;
  76             }
  77         }
  78
  79         XChangeProperty( (Display*)display,
  80                          (Window)window,
  81                          net_wm_icon,
  82                          XA_CARDINAL, 32,
  83                          PropModeReplace,
  84                          (unsigned char*)data, size );
  85         delete[] data;
  86     }
  87     else
  88     {
  89         XDeleteProperty( (Display*)display,
  90                          (Window)window,
  91                          net_wm_icon );
  92     }
  93 }
  94
  95 #endif