vcs.maemo.org Git - neverball/blob - share/syswm.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3
   4 #include <SDL_video.h>
   5 #include <SDL_syswm.h>
   6
   7 #include "syswm.h"
   8 #include "base_config.h"
   9 #include "image.h"
  10 #include "lang.h"
  11
  12 /*---------------------------------------------------------------------------*/
  13
  14 void set_SDL_icon(const char *filename)
  15 {
  16 #if !defined(__APPLE__) && !defined(_WIN32)
  17     SDL_Surface *icon;
  18
  19     if ((icon = load_surface(filename)))
  20     {
  21         SDL_WM_SetIcon(icon, NULL);
  22         free(icon->pixels);
  23         SDL_FreeSurface(icon);
  24     }
  25 #endif
  26     return;
  27 }
  28
  29 void set_EWMH_icon(const char *filename)
  30 {
  31 #if SDL_VIDEO_DRIVER_X11 && !SDL_VIDEO_DRIVER_QUARTZ
  32     SDL_SysWMinfo info;
  33
  34     Display *dpy;
  35     Window   window;
  36
  37     unsigned char *p;
  38     int w, h, b;
  39
  40     SDL_VERSION(&info.version);
  41
  42     if (SDL_GetWMInfo(&info) != 1)
  43     {
  44         fprintf(stderr, L_("Failed to get WM info: %s\n"), SDL_GetError());
  45         return;
  46     }
  47
  48     if (info.subsystem != SDL_SYSWM_X11)
  49         return;
  50
  51     dpy    = info.info.x11.display;
  52     window = info.info.x11.wmwindow;
  53
  54     /*
  55      * This code loads an image and sets it as the _NET_WM_ICON window
  56      * property, as described in the Extended Window Manager Hints
  57      * specification[*].  From the spec: "This is an array of 32-bit packed
  58      * CARDINAL ARGB with high byte being A, low byte being B.  The first two
  59      * cardinals are width, height.  Data is in rows, left to right and top to
  60      * bottom."
  61      *
  62      * [*] http://standards.freedesktop.org/wm-spec/latest/
  63      */
  64
  65     if ((p = image_load(config_data(filename), &w, &h, &b)))
  66     {
  67         long *data = NULL;
  68
  69         if ((data = calloc(2 + w * h, sizeof (long))))
  70         {
  71             int r, c;
  72
  73             data[0] = w;
  74             data[1] = h;
  75
  76             for (r = 0; r < h; r++)
  77                 for (c = 0; c < w; c++)
  78                 {
  79                     long          *dp = &data[2 + r * w + c];
  80                     unsigned char *pp = &p[(h - r - 1) * w * b + c * b];
  81
  82                     if (b < 3)
  83                     {
  84                         if (b == 2)
  85                             *dp |= *(pp + 1) << 24;
  86
  87                         *dp |= *(pp + 0) << 16;
  88                         *dp |= *(pp + 0) << 8;
  89                         *dp |= *(pp + 0) << 0;
  90                     }
  91                     else
  92                     {
  93                         if (b == 4)
  94                             *dp |= *(pp + 3) << 24;
  95
  96                         *dp |= *(pp + 0) << 16;
  97                         *dp |= *(pp + 1) << 8;
  98                         *dp |= *(pp + 2) << 0;
  99                     }
 100                 }
 101
 102             info.info.x11.lock_func();
 103             {
 104                 Atom icon = XInternAtom(dpy, "_NET_WM_ICON", False);
 105
 106                 XChangeProperty(dpy, window, icon, XA_CARDINAL, 32,
 107                                 PropModeReplace, (unsigned char *) data,
 108                                 2 + w * h);
 109             }
 110             info.info.x11.unlock_func();
 111
 112             free(data);
 113         }
 114         else
 115             fputs(L_("Failed to allocate memory for EWMH icon data.\n"), stderr);
 116
 117         free(p);
 118     }
 119 #endif
 120
 121     return;
 122 }
 123
 124 /*---------------------------------------------------------------------------*/
 125