shape.c

// jbwm - Minimalist Window Manager for X
// Copyright 2008-2020, Alisa Bedard <alisabedard@gmail.com>
// Copyright 1999-2015, Ciaran Anscomb <evilwm@6809.org.uk>
// See README for license and other details.
#include "shape.h"
#include <X11/extensions/shape.h>
#include "JBWMClient.h"
#include "log.h"
// Declared with pure attribute, as value may not change between calls.
__attribute__((pure))
static bool is_shaped(Display * dpy, const Window win)
{
  int s, d;
  unsigned int u;
  return XShapeQueryExtents(dpy, win, &s, &d, &d,
    &u, &u, &d, &d, &d, &u, &u) && s;
}
void jbwm_set_shape(struct JBWMClient * c)
{
  if(c->opt.shaped) {
    JBWM_LOG("XShapeCombineShape: %d", (int)c->window);
    Display * d = c->screen->xlib->display;
    XFlush(d);
    XShapeCombineShape(d, c->parent, ShapeBounding,
      1, 1, c->window, ShapeBounding, ShapeSet);
  }
}
void jbwm_new_shaped_client(struct JBWMClient * c)
{
  if (is_shaped(c->screen->xlib->display, c->window)) {
    JBWM_LOG("Window %d is shaped", (int)c->window);
    struct JBWMClientOptions * o = &c->opt;
    o->no_title_bar = o->shaped = true;
    o->border = 0;
  }
}