render/mask.c (raw)
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#include "mask.h" #include "../kernel/openbox.h" 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; m->mask = XCreateBitmapFromData(ob_display, ob_root, data, w, h); return m; } void pixmap_mask_free(pixmap_mask *m) { XFreePixmap(ob_display, m->mask); g_free(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); } |