From a0551f88bbfd3d91402c779824dabeb7969849a2 Mon Sep 17 00:00:00 2001
From: okan
Date: Mon, 3 Feb 2014 21:07:47 +0000
Subject: Introduce a region queue and replace screen's XineramaScreenInfo; we
 still use Xinerama to populate the regions per screen, but will switch at a
 more appropriate time.

---
 calmwm.h | 12 +++++++++---
 screen.c | 50 +++++++++++++++++++++++++++-----------------------
 2 files changed, 36 insertions(+), 26 deletions(-)

diff --git a/calmwm.h b/calmwm.h
index 7646141..1ed41e5 100644
--- a/calmwm.h
+++ b/calmwm.h
@@ -15,7 +15,7 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
- * $OpenBSD: calmwm.h,v 1.257 2014/02/03 20:20:39 okan Exp $
+ * $OpenBSD: calmwm.h,v 1.258 2014/02/03 21:07:47 okan Exp $
  */
 
 #ifndef _CALMWM_H_
@@ -218,6 +218,13 @@ struct autogroupwin {
 };
 TAILQ_HEAD(autogroupwin_q, autogroupwin);
 
+struct region_ctx {
+	TAILQ_ENTRY(region_ctx)	 entry;
+	int			 num;
+	struct geom		 area;
+};
+TAILQ_HEAD(region_ctx_q, region_ctx);
+
 struct screen_ctx {
 	TAILQ_ENTRY(screen_ctx)	 entry;
 	int			 which;
@@ -229,11 +236,10 @@ struct screen_ctx {
 	struct geom		 work; /* workable area, gap-applied */
 	struct gap		 gap;
 	struct cycle_entry_q	 mruq;
+	struct region_ctx_q	 regionq;
 	XftColor		 xftcolor[CWM_COLOR_NITEMS];
 	XftDraw			*xftdraw;
 	XftFont			*xftfont;
-	int			 xinerama_no;
-	XineramaScreenInfo	*xinerama;
 #define CALMWM_NGROUPS		 10
 	struct group_ctx	 groups[CALMWM_NGROUPS];
 	struct group_ctx_q	 groupq;
diff --git a/screen.c b/screen.c
index 9d6503a..b718204 100644
--- a/screen.c
+++ b/screen.c
@@ -15,7 +15,7 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
- * $OpenBSD: screen.c,v 1.59 2014/02/03 20:29:05 okan Exp $
+ * $OpenBSD: screen.c,v 1.60 2014/02/03 21:07:47 okan Exp $
  */
 
 #include <sys/param.h>
@@ -41,6 +41,7 @@ screen_init(int which)
 	sc = xcalloc(1, sizeof(*sc));
 
 	TAILQ_INIT(&sc->mruq);
+	TAILQ_INIT(&sc->regionq);
 
 	sc->which = which;
 	sc->rootwin = RootWindow(X_Dpy, sc->which);
@@ -116,23 +117,13 @@ screen_updatestackingorder(struct screen_ctx *sc)
 struct geom
 screen_find_xinerama(struct screen_ctx *sc, int x, int y, int flags)
 {
-	XineramaScreenInfo	*info;
-	struct geom		 geom;
-	int			 i;
-
-	geom = sc->work;
-
-	if (sc->xinerama == NULL)
-		return (geom);
-
-	for (i = 0; i < sc->xinerama_no; i++) {
-		info = &sc->xinerama[i];
-		if (x >= info->x_org && x < info->x_org + info->width &&
-		    y >= info->y_org && y < info->y_org + info->height) {
-			geom.x = info->x_org;
-			geom.y = info->y_org;
-			geom.w = info->width;
-			geom.h = info->height;
+	struct region_ctx	*region;
+	struct geom		 geom = sc->work;
+
+	TAILQ_FOREACH(region, &sc->regionq, entry) {
+		if (x >= region->area.x && x < region->area.x+region->area.w &&
+		    y >= region->area.y && y < region->area.y+region->area.h) {
+			geom = region->area;
 			break;
 		}
 	}
@@ -149,7 +140,8 @@ void
 screen_update_geometry(struct screen_ctx *sc)
 {
 	XineramaScreenInfo	*info = NULL;
-	int			 info_no = 0;
+	struct region_ctx	*region;
+	int			 info_no = 0, i;
 
 	sc->view.x = 0;
 	sc->view.y = 0;
@@ -164,10 +156,22 @@ screen_update_geometry(struct screen_ctx *sc)
 	/* RandR event may have a CTRC added or removed. */
 	if (XineramaIsActive(X_Dpy))
 		info = XineramaQueryScreens(X_Dpy, &info_no);
-	if (sc->xinerama != NULL)
-		XFree(sc->xinerama);
-	sc->xinerama = info;
-	sc->xinerama_no = info_no;
+
+	while ((region = TAILQ_FIRST(&sc->regionq)) != NULL) {
+		TAILQ_REMOVE(&sc->regionq, region, entry);
+		free(region);
+	}
+	for (i = 0; i < info_no; i++) {
+		region = xmalloc(sizeof(*region));
+		region->num = i;
+		region->area.x = info[i].x_org;
+		region->area.y = info[i].y_org;
+		region->area.w = info[i].width;
+		region->area.h = info[i].height;
+		TAILQ_INSERT_TAIL(&sc->regionq, region, entry);
+	}
+	if (info)
+		XFree(info);
 
 	xu_ewmh_net_desktop_geometry(sc);
 	xu_ewmh_net_workarea(sc);
-- 
cgit v1.2.3-2-gb3c3