From 879fd61e4f12c857827c926f5eb917c0504238ea Mon Sep 17 00:00:00 2001
From: Catouse <catouse@gmail.com>
Date: Thu, 3 Jul 2014 09:07:00 +0800
Subject: [PATCH]  * fixed clearCanvasArea.

---
 dist/js/zui.min.js | 5 ++---
 src/js/mindmap.js  | 5 ++---
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/dist/js/zui.min.js b/dist/js/zui.min.js
index b5d7aec52..ebcf9dc86 100644
--- a/dist/js/zui.min.js
+++ b/dist/js/zui.min.js
@@ -5410,7 +5410,6 @@ Date.prototype.format = function(format)
 
         if(nodeData.type === 'root')
         {
-            this.clearCanvasArea();
             ui.left = 0 - Math.floor(ui.width / 2);
             ui.top = 0 - Math.floor(ui.height / 2);
 
@@ -5561,8 +5560,7 @@ Date.prototype.format = function(format)
 
     Mindmap.prototype.clearCanvasArea = function(nodeData, parent)
     {
-        var size = this.options.canvasSize;
-        this.$canvas[0].getContext("2d").clearRect(0, 0, size.width, size.height)
+        this.$canvas[0].getContext("2d").clearRect(0, 0, this.width, this.height)
     };
 
     Mindmap.prototype.draw = function(nodeData, parent)
@@ -5575,6 +5573,7 @@ Date.prototype.format = function(format)
         if(nodeData.type === 'root')
         {
             this.$canvas.attr({width: this.width, height: this.height});
+            this.clearCanvasArea();
         }
 
         if(parent)
diff --git a/src/js/mindmap.js b/src/js/mindmap.js
index 11c03b7f6..e5cdbdeb8 100644
--- a/src/js/mindmap.js
+++ b/src/js/mindmap.js
@@ -622,7 +622,6 @@
 
         if(nodeData.type === 'root')
         {
-            this.clearCanvasArea();
             ui.left = 0 - Math.floor(ui.width / 2);
             ui.top = 0 - Math.floor(ui.height / 2);
 
@@ -773,8 +772,7 @@
 
     Mindmap.prototype.clearCanvasArea = function(nodeData, parent)
     {
-        var size = this.options.canvasSize;
-        this.$canvas[0].getContext("2d").clearRect(0, 0, size.width, size.height)
+        this.$canvas[0].getContext("2d").clearRect(0, 0, this.width, this.height)
     };
 
     Mindmap.prototype.draw = function(nodeData, parent)
@@ -787,6 +785,7 @@
         if(nodeData.type === 'root')
         {
             this.$canvas.attr({width: this.width, height: this.height});
+            this.clearCanvasArea();
         }
 
         if(parent)
-- 
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