add (optional) support for showing a busy cursor via startup notification

[chaz/openbox] / render / mask.c

diff --git a/render/mask.c b/render/mask.c
index 7aa702950c7b78ec69ce20ce4744230925bfc10f..22cb3feeb96c5879b485503fbf07c545e7df80b6 100644 (file)
--- a/render/mask.c
+++ b/render/mask.c
@@ -1,3 +1,57 @@
 #include "mask.h"
+#include "../kernel/openbox.h"
 
-/* DO YOUR MAGIC MANNY WOOT \m/ */
+pixmap_mask *pixmap_mask_new(int w, int h, char *data)
+{
+    pixmap_mask *m = g_new(pixmap_mask, 1);
+    m->w = w;
+    m->h = h;
+    /* round up to nearest byte */
+    m->data = g_memdup(data, (w * h + 7) / 8);
+    m->mask = XCreateBitmapFromData(ob_display, ob_root, data, w, h);
+    return m;
+}
+
+void pixmap_mask_free(pixmap_mask *m)
+{
+    if (m) {
+        XFreePixmap(ob_display, m->mask);
+        g_free(m->data);
+        g_free(m);
+    }
+}
+
+void mask_draw(Pixmap p, TextureMask *m, Rect *position)
+{
+    int x, y;
+    if (m->mask == None) return; /* no mask given */
+
+    /* set the clip region */
+    x = position->x + (position->width - m->mask->w) / 2;
+    y = position->y + (position->height - m->mask->h) / 2;
+
+    if (x < 0) x = 0;
+    if (y < 0) y = 0;
+
+    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);
+}
+
+pixmap_mask *pixmap_mask_copy(pixmap_mask *src)
+{
+    pixmap_mask *m = g_new(pixmap_mask, 1);
+    m->w = src->w;
+    m->h = src->h;
+    /* round up to nearest byte */
+    m->data = g_memdup(src->data, (src->w * src->h + 7) / 8);
+    m->mask = XCreateBitmapFromData(ob_display, ob_root, m->data, m->w, m->h);
+    return m;
+}