--- /dev/null
+/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
+
+ mask.c for the Openbox window manager
+ Copyright (c) 2003-2007 Dana Jansens
+ Copyright (c) 2003 Derek Foreman
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ See the COPYING file for a copy of the GNU General Public License.
+*/
+
+#include "render.h"
+#include "color.h"
+#include "mask.h"
+
+RrPixmapMask *RrPixmapMaskNew(const RrInstance *inst,
+ gint w, gint h, const gchar *data)
+{
+ RrPixmapMask *m = g_new(RrPixmapMask, 1);
+ m->inst = inst;
+ m->width = w;
+ m->height = h;
+ /* round up to nearest byte */
+ m->data = g_memdup(data, (w + 7) / 8 * h);
+ m->mask = XCreateBitmapFromData(RrDisplay(inst), RrRootWindow(inst),
+ data, w, h);
+ return m;
+}
+
+void RrPixmapMaskFree(RrPixmapMask *m)
+{
+ if (m) {
+ XFreePixmap(RrDisplay(m->inst), m->mask);
+ g_free(m->data);
+ g_free(m);
+ }
+}
+
+void RrPixmapMaskDraw(Pixmap p, const RrTextureMask *m, const RrRect *area)
+{
+ gint x, y;
+ if (m->mask == NULL) return; /* no mask given */
+
+ /* set the clip region */
+ x = area->x + (area->width - m->mask->width) / 2;
+ y = area->y + (area->height - m->mask->height) / 2;
+
+ if (x < 0) x = 0;
+ if (y < 0) y = 0;
+
+ XSetClipMask(RrDisplay(m->mask->inst), RrColorGC(m->color), m->mask->mask);
+ XSetClipOrigin(RrDisplay(m->mask->inst), RrColorGC(m->color), x, y);
+
+ /* fill in the clipped region */
+ XFillRectangle(RrDisplay(m->mask->inst), p, RrColorGC(m->color), x, y,
+ x + m->mask->width, y + m->mask->height);
+
+ /* unset the clip region */
+ XSetClipMask(RrDisplay(m->mask->inst), RrColorGC(m->color), None);
+ XSetClipOrigin(RrDisplay(m->mask->inst), RrColorGC(m->color), 0, 0);
+}
+
+RrPixmapMask *RrPixmapMaskCopy(const RrPixmapMask *src)
+{
+ RrPixmapMask *m = g_new(RrPixmapMask, 1);
+ m->inst = src->inst;
+ m->width = src->width;
+ m->height = src->height;
+ /* round up to nearest byte */
+ m->data = g_memdup(src->data, (src->width + 7) / 8 * src->height);
+ m->mask = XCreateBitmapFromData(RrDisplay(m->inst), RrRootWindow(m->inst),
+ m->data, m->width, m->height);
+ return m;
+}