From 5d6624b2e1801d75852880caec73f6a5671ab1a4 Mon Sep 17 00:00:00 2001
From: buliabyak <buliabyak@users.sourceforge.net>
Date: Mon, 9 Mar 2009 00:48:46 +0000
Subject: [PATCH] do not redraw if moved to the same point as before

---
 src/display/sodipodi-ctrl.cpp | 9 +++++++--
 src/display/sodipodi-ctrl.h   | 1 +
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/display/sodipodi-ctrl.cpp b/src/display/sodipodi-ctrl.cpp
index c26402743..caa5fa697 100644
--- a/src/display/sodipodi-ctrl.cpp
+++ b/src/display/sodipodi-ctrl.cpp
@@ -111,6 +111,8 @@ sp_ctrl_init (SPCtrl *ctrl)
     ctrl->box.x0 = ctrl->box.y0 = ctrl->box.x1 = ctrl->box.y1 = 0;
     ctrl->cache = NULL;
     ctrl->pixbuf = NULL;
+
+    ctrl->_point = Geom::Point(0,0);
 }
 
 static void
@@ -550,8 +552,11 @@ sp_ctrl_render (SPCanvasItem *item, SPCanvasBuf *buf)
 }
 
 void SPCtrl::moveto (Geom::Point const p) {
-    sp_canvas_item_affine_absolute (SP_CANVAS_ITEM (this), Geom::Matrix(Geom::Translate (p)));
-    _moved = true;
+    if (p != _point) {
+        sp_canvas_item_affine_absolute (SP_CANVAS_ITEM (this), Geom::Matrix(Geom::Translate (p)));
+        _moved = true;
+    }
+    _point = p;
 }
 
 
diff --git a/src/display/sodipodi-ctrl.h b/src/display/sodipodi-ctrl.h
index 634e9ff3e..859735e4f 100644
--- a/src/display/sodipodi-ctrl.h
+++ b/src/display/sodipodi-ctrl.h
@@ -54,6 +54,7 @@ struct SPCtrl : public SPCanvasItem{
     GdkPixbuf * pixbuf;
 
     void moveto(Geom::Point const p);
+    Geom::Point _point;
 };
 
 struct SPCtrlClass : public SPCanvasItemClass{
-- 
2.30.2