M render/mask.c → render/mask.c

@@ -16,6 +16,22 @@ XFreePixmap(ob_display, m->mask);
     g_free(m);
 }
 
-void mask_draw(pixmap_mask *p, TextureMask *m)
+void mask_draw(Pixmap p, TextureMask *m, int width, int height)
 {
+    int x, y;
+    if (m->mask == None) return; // no mask given
+
+    // set the clip region
+    x = (width - m->mask->w) / 2;
+    y = (height - m->mask->h) / 2;
+    XSetClipMask(ob_display, m->color->gc, m->mask->mask);
+    XSetClipOrigin(ob_display, m->color->gc, x, y);
+
+    // fill in the clipped region
+    XFillRectangle(ob_display, p, m->color->gc, x, y,
+                   x + m->mask->w, y + m->mask->h);
+
+    // unset the clip region
+    XSetClipMask(ob_display, m->color->gc, None);
+    XSetClipOrigin(ob_display, m->color->gc, 0, 0);
 }

M render/mask.h → render/mask.h

@@ -7,6 +7,6 @@ #include "render.h"
 
 pixmap_mask *pixmap_mask_new(int w, int h, char *data);
 void pixmap_mask_free(pixmap_mask *m);
-void mask_draw(pixmap_mask *p, TextureMask *m);
+void mask_draw(Pixmap p, TextureMask *m, int width, int height);
 
 #endif

M render/render.c → render/render.c

@@ -4,6 +4,7 @@ #include <glib.h>
 #include "render.h"
 #include "gradient.h"
 #include "font.h"
+#include "mask.h"
 #include "../kernel/openbox.h"
 
 int render_depth;
@@ -106,6 +107,11 @@ l->xftdraw = XftDrawCreate(ob_display, l->pixmap,
                                         render_visual, render_colormap);
             }
             font_draw(l->xftdraw, &l->texture[i].data.text);
+        break;
+        case Bitmask:
+            if (l->texture[i].data.mask.color->gc == None)
+                color_allocate_gc(l->texture[i].data.mask.color);
+            mask_draw(l->pixmap, &l->texture[i].data.mask, w, h);
         break;
         }
     }