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-rw-r--r--xcompmgr.c117
1 files changed, 116 insertions, 1 deletions
diff --git a/xcompmgr.c b/xcompmgr.c
index fe64a54..0ad23b5 100644
--- a/xcompmgr.c
+++ b/xcompmgr.c
@@ -44,6 +44,7 @@
#include <X11/extensions/Xcomposite.h>
#include <X11/extensions/Xdamage.h>
#include <X11/extensions/Xrender.h>
+#include <X11/extensions/shape.h>
#if COMPOSITE_MAJOR > 0 || COMPOSITE_MINOR >= 2
#define HAS_NAME_WINDOW_PIXMAP 1
@@ -83,6 +84,8 @@ typedef struct _win {
unsigned int opacity;
Atom windowType;
unsigned long damage_sequence; /* sequence when damage was created */
+ Bool shaped;
+ XRectangle shape_bounds;
/* for drawing translucent windows */
XserverRegion borderClip;
@@ -126,6 +129,7 @@ static int xfixes_event, xfixes_error;
static int damage_event, damage_error;
static int composite_event, composite_error;
static int render_event, render_error;
+static int xshape_event, xshape_error;
static Bool synchronize;
static int composite_opcode;
@@ -1024,6 +1028,7 @@ paint_all (Display *dpy, XserverRegion region)
{
w->borderClip = XFixesCreateRegion (dpy, NULL, 0);
XFixesCopyRegion (dpy, w->borderClip, region);
+ XFixesIntersectRegion(dpy, w->borderClip, w->borderClip, w->borderSize);
}
w->prev_trans = t;
t = w;
@@ -1442,6 +1447,11 @@ add_win (Display *dpy, Window id, Window prev)
free (new);
return;
}
+ new->shaped = False;
+ new->shape_bounds.x = new->a.x;
+ new->shape_bounds.y = new->a.y;
+ new->shape_bounds.width = new->a.width;
+ new->shape_bounds.height = new->a.height;
new->damaged = 0;
#if CAN_DO_USABLE
new->usable = False;
@@ -1459,6 +1469,7 @@ add_win (Display *dpy, Window id, Window prev)
{
new->damage_sequence = NextRequest (dpy);
new->damage = XDamageCreate (dpy, id, XDamageReportNonEmpty);
+ XShapeSelectInput (dpy, id, ShapeNotifyMask);
}
new->alphaPict = None;
new->shadowPict = None;
@@ -1540,6 +1551,8 @@ configure_win (Display *dpy, XConfigureEvent *ce)
if (w->extents != None)
XFixesCopyRegion (dpy, damage, w->extents);
}
+ w->shape_bounds.x -= w->a.x;
+ w->shape_bounds.y -= w->a.y;
w->a.x = ce->x;
w->a.y = ce->y;
if (w->a.width != ce->width || w->a.height != ce->height)
@@ -1574,6 +1587,14 @@ configure_win (Display *dpy, XConfigureEvent *ce)
XFixesDestroyRegion (dpy, extents);
add_damage (dpy, damage);
}
+ w->shape_bounds.x += w->a.x;
+ w->shape_bounds.y += w->a.y;
+ if (!w->shaped)
+ {
+ w->shape_bounds.width = w->a.width;
+ w->shape_bounds.height = w->a.height;
+ }
+
clipChanged = True;
}
@@ -1738,6 +1759,76 @@ damage_win (Display *dpy, XDamageNotifyEvent *de)
repair_win (dpy, w);
}
+static const char *
+shape_kind(int kind)
+{
+ static char buf[128];
+
+ switch(kind){
+ case ShapeBounding:
+ return "ShapeBounding";
+ case ShapeClip:
+ return "ShapeClip";
+ case ShapeInput:
+ return "ShapeInput";
+ default:
+ sprintf (buf, "Shape %d", kind);
+ return buf;
+ }
+}
+
+static void
+shape_win (Display *dpy, XShapeEvent *se)
+{
+ win *w = find_win (dpy, se->window);
+
+ if (!w)
+ return;
+
+ if (se->kind == ShapeClip || se->kind == ShapeBounding)
+ {
+ XserverRegion region0;
+ XserverRegion region1;
+
+#if 0
+ printf("win 0x%lx %s:%s %ux%u+%d+%d\n",
+ (unsigned long) se->window,
+ shape_kind(se->kind),
+ (se->shaped == True) ? "true" : "false",
+ se->width, se->height,
+ se->x, se->y);
+#endif
+
+ clipChanged = True;
+
+ region0 = XFixesCreateRegion (dpy, &w->shape_bounds, 1);
+
+ if (se->shaped == True)
+ {
+ w->shaped = True;
+ w->shape_bounds.x = w->a.x + se->x;
+ w->shape_bounds.y = w->a.y + se->y;
+ w->shape_bounds.width = se->width;
+ w->shape_bounds.height = se->height;
+ }
+ else
+ {
+ w->shaped = False;
+ w->shape_bounds.x = w->a.x;
+ w->shape_bounds.y = w->a.y;
+ w->shape_bounds.width = w->a.width;
+ w->shape_bounds.height = w->a.height;
+ }
+
+ region1 = XFixesCreateRegion (dpy, &w->shape_bounds, 1);
+ XFixesUnionRegion (dpy, region0, region0, region1);
+ XFixesDestroyRegion (dpy, region1);
+
+ /* ask for repaint of the old and new region */
+ paint_all (dpy, region0);
+ }
+}
+
static int
error (Display *dpy, XErrorEvent *ev)
{
@@ -1824,7 +1915,13 @@ ev_name (XEvent *ev)
return "Circulate";
default:
if (ev->type == damage_event + XDamageNotify)
+ {
return "Damage";
+ }
+ else if (ev->type == xshape_event + ShapeNotify)
+ {
+ return "Shape";
+ }
sprintf (buf, "Event %d", ev->type);
return buf;
}
@@ -1846,7 +1943,13 @@ ev_window (XEvent *ev)
return ev->xcirculate.window;
default:
if (ev->type == damage_event + XDamageNotify)
+ {
return ((XDamageNotifyEvent *) ev)->drawable;
+ }
+ else if (ev->type == xshape_event + ShapeNotify)
+ {
+ return ((XShapeEvent *) ev)->window;
+ }
return 0;
}
}
@@ -2048,6 +2151,11 @@ main (int argc, char **argv)
fprintf (stderr, "No XFixes extension\n");
exit (1);
}
+ if (!XShapeQueryExtension (dpy, &xshape_event, &xshape_error))
+ {
+ fprintf (stderr, "No XShape extension\n");
+ exit (1);
+ }
if (!register_cm())
{
@@ -2098,6 +2206,7 @@ main (int argc, char **argv)
ExposureMask|
StructureNotifyMask|
PropertyChangeMask);
+ XShapeSelectInput (dpy, root, ShapeNotifyMask);
XQueryTree (dpy, root, &root_return, &parent_return, &children, &nchildren);
for (i = 0; i < nchildren; i++)
add_win (dpy, children[i], i ? children[i-1] : None);
@@ -2226,7 +2335,13 @@ main (int argc, char **argv)
break;
default:
if (ev.type == damage_event + XDamageNotify)
- damage_win (dpy, (XDamageNotifyEvent *) &ev);
+ {
+ damage_win (dpy, (XDamageNotifyEvent *) &ev);
+ }
+ else if (ev.type == xshape_event + ShapeNotify)
+ {
+ shape_win (dpy, (XShapeEvent *) &ev);
+ }
break;
}
} while (QLength (dpy));