From f2922d7dbde35eadcea78e0536f5f61fb9ca4e39 Mon Sep 17 00:00:00 2001
From: o9000 <mrovi9000@gmail.com>
Date: Wed, 4 Nov 2015 02:36:51 +0100
Subject: [PATCH] Area: do not destroy pixmap when not necessary

---
 src/util/area.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/util/area.c b/src/util/area.c
index 01ad167..40aa40f 100644
--- a/src/util/area.c
+++ b/src/util/area.c
@@ -419,13 +419,24 @@ void show(Area *a)
 
 void draw (Area *a)
 {
-	if (a->pix) XFreePixmap (server.dsp, a->pix);
-	a->pix = XCreatePixmap (server.dsp, server.root_win, a->width, a->height, server.depth);
+	if (a->pix) {
+		unsigned int d1, width, height;
+		Window d2;
+		int d3;
+		XGetGeometry(server.dsp, server.root_win, &d2, &d3, &d3, &width, &height, &d1, &d1);
+		if (width != a->width || height != a->height) {
+			XFreePixmap (server.dsp, a->pix);
+			a->pix = XCreatePixmap(server.dsp, server.root_win, a->width, a->height, server.depth);
+		}
+	} else {
+		a->pix = XCreatePixmap(server.dsp, server.root_win, a->width, a->height, server.depth);
+	}
 
 	// add layer of root pixmap (or clear pixmap if real_transparency==true)
 	if (server.real_transparency)
 		clear_pixmap(a->pix, 0 ,0, a->width, a->height);
-	XCopyArea (server.dsp, ((Panel *)a->panel)->temp_pmap, a->pix, server.gc, a->posx, a->posy, a->width, a->height, 0, 0);
+	else
+		XCopyArea (server.dsp, ((Panel *)a->panel)->temp_pmap, a->pix, server.gc, a->posx, a->posy, a->width, a->height, 0, 0);
 
 	cairo_surface_t *cs;
 	cairo_t *c;