添加局部 layout 更新的方法

index.html

@@ -58,6 +58,7 @@
         <a href="https://github.com/fex-team/kityminder/issues/new" target="_blank">Bug</a> | 
         <a href="mailto:kity@baidu.com" target="_blank">Contact Us</a>
     </p>
+    <script>window._bd_share_config={"common":{"bdSnsKey":{},"bdMini":"2","bdMiniList":[],"bdPic":"","bdStyle":"1","bdSize":"32"},"share":{}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)];</script>  
 </body>
 <script>
     // create km instance

src/core/layout.js

@@ -128,7 +128,7 @@ kity.extendClass(MinderNode, {
             }
         }
 
-        this.getMinder().layout(duration);
+        this.getMinder().layout(this, duration);
 
         return this;
     },
@@ -140,9 +140,11 @@ kity.extendClass(MinderNode, {
 
 kity.extendClass(Minder, {
 
-    layout: function(duration) {
+    layout: function(root, duration) {
 
-        this.getRoot().traverse(function(node) {
+        root = root || this.getRoot();
+
+        root.traverse(function(node) {
             node.setLayoutTransform(null);
         });
 
@@ -160,9 +162,9 @@ kity.extendClass(Minder, {
             layout.doLayout(node);
         }
 
-        layoutNode(this.getRoot());
+        layoutNode(root);
 
-        this.applyLayoutResult(this.getRoot(), duration);
+        this.applyLayoutResult(root, duration);
 
         return this.fire('layout');
     },

src/core/node.js

@@ -64,6 +64,14 @@ var MinderNode = KityMinder.MinderNode = kity.createClass('MinderNode', {
         return level;
     },
 
+    /**
+     * 获得节点的复杂度
+     * @return {[type]} [description]
+     */
+    getComplex: function() {
+
+    },
+
     /**
      * 获得节点的类型（root|main|sub）
      */

src/core/render.js

@@ -52,6 +52,10 @@ kity.extendClass(Minder, {
         var g = KityMinder.Geometry;
         var i, latestBox, renderer;
 
+        this.fire('beforerender', {
+            node: node
+        });
+
         if (!node._renderers) {
             this._createRendererForNode(node);
         }

src/module/expand.js

@@ -198,7 +198,6 @@ KityMinder.registerModule('Expand', function() {
             if (!node.parent) return;
 
             var visible = node.parent.isExpanded();
-            node.getRenderContainer().setVisible(visible);
 
             expander.setState(visible && node.children.length ? node.getData(EXPAND_STATE_DATA) : 'hide');
 
@@ -229,6 +228,11 @@ KityMinder.registerModule('Expand', function() {
             },
             'preimport': function(e) {
                 var json = e.json;
+            },
+            'beforerender': function(e) {
+                var node = e.node;
+                var visible = !node.parent || node.parent.isExpanded();
+                node.getRenderContainer().setVisible(visible);
             }
         },
         renderers: {

src/module/node.js

@@ -30,7 +30,7 @@ var AppendSiblingCommand = kity.createClass('AppendSiblingCommand', {
         km.select(node, true);
         node.render();
         node._lastLayoutTransform = sibling._lastLayoutTransform;
-        km.layout(300);
+        km.layout(3000);
     },
     queryState: function(km) {
         var selectedNode = km.getSelectedNode();