Merge pull request #5953 from dumganhar/merge5934

closed #4541: [ui] Removed Widget::addNode, added ProtectedNode.

build/cocos2d_libs.xcodeproj/project.pbxproj.REMOVED.git-id

@@ -1 +1 @@
-68ac83318dc8df5fee3badc4eb3f0e75ee0a9ce0
+ebeb897c2c3303710c06b9de3cb3d499f89fb78c

cocos/2d/CCNode.cpp

@@ -72,7 +72,7 @@ bool nodeComparisonLess(Node* n1, Node* n2)
 }
 
 // XXX: Yes, nodes might have a sort problem once every 15 days if the game runs at 60 FPS and each frame sprites are reordered.
-static int s_globalOrderOfArrival = 1;
+int Node::s_globalOrderOfArrival = 1;
 
 Node::Node(void)
 : _rotationX(0.0f)

cocos/2d/CCNode.h

@@ -1452,6 +1452,8 @@ protected:
     bool		_cascadeColorEnabled;
     bool        _cascadeOpacityEnabled;
 
+    static int s_globalOrderOfArrival;
+    
 private:
     CC_DISALLOW_COPY_AND_ASSIGN(Node);
 };

cocos/2d/CCScene.h

@@ -68,6 +68,7 @@ CC_CONSTRUCTOR_ACCESS:
 
 protected:
     friend class Node;
+    friend class ProtectedNode;
     friend class SpriteBatchNode;
     
 private:

cocos/physics/CCPhysicsBody.h

@@ -349,6 +349,7 @@ protected:
     friend class PhysicsShape;
     friend class PhysicsJoint;
     friend class Node;
+    friend class ProtectedNode;
 };
 
 NS_CC_END

cocos/ui/Android.mk

@@ -24,7 +24,8 @@ UITextBMFont.cpp \
 UILoadingBar.cpp \
 UISlider.cpp \
 UITextField.cpp \
-UIRichText.cpp
+UIRichText.cpp \
+CCProtectedNode.cpp
 
 
 LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/.. \

cocos/ui/CCProtectedNode.cpp

@@ -0,0 +1,415 @@
+/****************************************************************************
+ Copyright (c) 2008-2010 Ricardo Quesada
+ Copyright (c) 2009      Valentin Milea
+ Copyright (c) 2010-2012 cocos2d-x.org
+ Copyright (c) 2011      Zynga Inc.
+ Copyright (c) 2013-2014 Chukong Technologies Inc.
+ 
+ http://www.cocos2d-x.org
+ 
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+ 
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+ 
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+ ****************************************************************************/
+
+#include "CCProtectedNode.h"
+
+#include "kazmath/GL/matrix.h"
+
+#if CC_USE_PHYSICS
+#include "CCPhysicsBody.h"
+#endif
+#include "CCScene.h"
+
+NS_CC_BEGIN
+
+ProtectedNode::ProtectedNode() : _reorderProtectedChildDirty(false)
+{
+}
+
+ProtectedNode::~ProtectedNode()
+{
+    
+    CCLOGINFO( "deallocing ProtectedNode: %p - tag: %i", this, _tag );
+}
+
+ProtectedNode * ProtectedNode::create(void)
+{
+	ProtectedNode * ret = new ProtectedNode();
+    if (ret && ret->init())
+    {
+        ret->autorelease();
+    }
+    else
+    {
+        CC_SAFE_DELETE(ret);
+    }
+	return ret;
+}
+
+void ProtectedNode::cleanup()
+{
+    Node::cleanup();
+    // timers
+    for( const auto &child: _protectedChildren)
+        child->cleanup();
+}
+
+void ProtectedNode::addProtectedChild(cocos2d::Node *child)
+{
+    addProtectedChild(child, child->getLocalZOrder(), child->getTag());
+}
+
+void ProtectedNode::addProtectedChild(cocos2d::Node *child, int localZOrder)
+{
+    addProtectedChild(child, localZOrder, child->getTag());
+}
+
+/* "add" logic MUST only be on this method
+ * If a class want's to extend the 'addChild' behavior it only needs
+ * to override this method
+ */
+void ProtectedNode::addProtectedChild(Node *child, int zOrder, int tag)
+{
+    CCASSERT( child != nullptr, "Argument must be non-nil");
+    CCASSERT( child->getParent() == nullptr, "child already added. It can't be added again");
+    
+    if (_protectedChildren.empty())
+    {
+        _protectedChildren.reserve(4);
+    }
+    
+    this->insertProtectedChild(child, zOrder);
+    
+#if CC_USE_PHYSICS
+    if (child->getPhysicsBody() != nullptr)
+    {
+        child->getPhysicsBody()->setPosition(this->convertToWorldSpace(child->getPosition()));
+    }
+    
+    for (Node* node = this->getParent(); node != nullptr; node = node->getParent())
+    {
+        if (dynamic_cast<Scene*>(node) != nullptr)
+        {
+            (dynamic_cast<Scene*>(node))->addChildToPhysicsWorld(child);
+            break;
+        }
+    }
+#endif
+    
+    child->setTag(tag);
+    
+    child->setParent(this);
+    child->setOrderOfArrival(s_globalOrderOfArrival++);
+    
+    if( _running )
+    {
+        child->onEnter();
+        // prevent onEnterTransitionDidFinish to be called twice when a node is added in onEnter
+        if (_isTransitionFinished) {
+            child->onEnterTransitionDidFinish();
+        }
+    }
+    
+    if (_cascadeColorEnabled)
+    {
+        updateCascadeColor();
+    }
+    
+    if (_cascadeOpacityEnabled)
+    {
+        updateCascadeOpacity();
+    }
+}
+
+Node* ProtectedNode::getProtectedChildByTag(int tag)
+{
+    CCASSERT( tag != Node::INVALID_TAG, "Invalid tag");
+    
+    for (auto& child : _protectedChildren)
+    {
+        if(child && child->getTag() == tag)
+            return child;
+    }
+    return nullptr;
+}
+
+/* "remove" logic MUST only be on this method
+ * If a class want's to extend the 'removeChild' behavior it only needs
+ * to override this method
+ */
+void ProtectedNode::removeProtectedChild(cocos2d::Node *child, bool cleanup)
+{
+    // explicit nil handling
+    if (_protectedChildren.empty())
+    {
+        return;
+    }
+    
+    ssize_t index = _protectedChildren.getIndex(child);
+    if( index != CC_INVALID_INDEX )
+    {
+        
+        // IMPORTANT:
+        //  -1st do onExit
+        //  -2nd cleanup
+        if (_running)
+        {
+            child->onExitTransitionDidStart();
+            child->onExit();
+        }
+        
+#if CC_USE_PHYSICS
+        if (child->getPhysicsBody() != nullptr)
+        {
+            child->getPhysicsBody()->removeFromWorld();
+        }
+        
+#endif
+        // If you don't do cleanup, the child's actions will not get removed and the
+        // its scheduledSelectors_ dict will not get released!
+        if (cleanup)
+        {
+            child->cleanup();
+        }
+        
+        // set parent nil at the end
+        child->setParent(nullptr);
+        
+        _protectedChildren.erase(index);
+    }
+}
+
+void ProtectedNode::removeAllProtectedChildren()
+{
+    removeAllProtectedChildrenWithCleanup(true);
+}
+
+void ProtectedNode::removeAllProtectedChildrenWithCleanup(bool cleanup)
+{
+    // not using detachChild improves speed here
+    for (auto& child : _protectedChildren)
+    {
+        // IMPORTANT:
+        //  -1st do onExit
+        //  -2nd cleanup
+        if(_running)
+        {
+            child->onExitTransitionDidStart();
+            child->onExit();
+        }
+        
+#if CC_USE_PHYSICS
+        if (child->getPhysicsBody() != nullptr)
+        {
+            child->getPhysicsBody()->removeFromWorld();
+        }
+#endif
+        
+        if (cleanup)
+        {
+            child->cleanup();
+        }
+        // set parent nil at the end
+        child->setParent(nullptr);
+    }
+    
+    _protectedChildren.clear();
+}
+
+void ProtectedNode::removeProtectedChildByTag(int tag, bool cleanup)
+{
+    CCASSERT( tag != Node::INVALID_TAG, "Invalid tag");
+    
+    Node *child = this->getProtectedChildByTag(tag);
+    
+    if (child == nullptr)
+    {
+        CCLOG("cocos2d: removeChildByTag(tag = %d): child not found!", tag);
+    }
+    else
+    {
+        this->removeProtectedChild(child, cleanup);
+    }
+}
+
+// helper used by reorderChild & add
+void ProtectedNode::insertProtectedChild(cocos2d::Node *child, int z)
+{
+    _reorderProtectedChildDirty = true;
+    _protectedChildren.pushBack(child);
+    child->_setLocalZOrder(z);
+}
+
+void ProtectedNode::sortAllProtectedChildren()
+{
+    if( _reorderProtectedChildDirty ) {
+        std::sort( std::begin(_protectedChildren), std::end(_protectedChildren), nodeComparisonLess );
+        _reorderProtectedChildDirty = false;
+    }
+}
+
+void ProtectedNode::reorderProtectedChild(cocos2d::Node *child, int localZOrder)
+{
+    CCASSERT( child != nullptr, "Child must be non-nil");
+    _reorderProtectedChildDirty = true;
+    child->setOrderOfArrival(s_globalOrderOfArrival++);
+    child->_setLocalZOrder(localZOrder);
+}
+
+void ProtectedNode::visit(Renderer* renderer, const kmMat4 &parentTransform, bool parentTransformUpdated)
+{
+    // quick return if not visible. children won't be drawn.
+    if (!_visible)
+    {
+        return;
+    }
+    
+    bool dirty = _transformUpdated || parentTransformUpdated;
+    if(dirty)
+        _modelViewTransform = this->transform(parentTransform);
+    _transformUpdated = false;
+    
+    
+    // IMPORTANT:
+    // To ease the migration to v3.0, we still support the kmGL stack,
+    // but it is deprecated and your code should not rely on it
+    kmGLPushMatrix();
+    kmGLLoadMatrix(&_modelViewTransform);
+    
+    int i = 0;      // used by _children
+    int j = 0;      // used by _protectedChildren
+    
+    sortAllChildren();
+    sortAllProtectedChildren();
+    
+    //
+    // draw children and protectedChildren zOrder < 0
+    //
+    for( ; i < _children.size(); i++ )
+    {
+        auto node = _children.at(i);
+        
+        if ( node && node->getZOrder() < 0 )
+            node->visit(renderer, _modelViewTransform, dirty);
+        else
+            break;
+    }
+    
+    for( ; j < _protectedChildren.size(); j++ )
+    {
+        auto node = _protectedChildren.at(j);
+        
+        if ( node && node->getZOrder() < 0 )
+            node->visit(renderer, _modelViewTransform, dirty);
+        else
+            break;
+    }
+    
+    //
+    // draw self
+    //
+    this->draw(renderer, _modelViewTransform, dirty);
+    
+    //
+    // draw children and protectedChildren zOrder >= 0
+    //
+    for(auto it=_protectedChildren.cbegin()+j; it != _protectedChildren.cend(); ++it)
+        (*it)->visit(renderer, _modelViewTransform, dirty);
+    
+    for(auto it=_children.cbegin()+i; it != _children.cend(); ++it)
+        (*it)->visit(renderer, _modelViewTransform, dirty);
+    
+    // reset for next frame
+    _orderOfArrival = 0;
+    
+    kmGLPopMatrix();
+}
+
+void ProtectedNode::onEnter()
+{
+    Node::onEnter();
+    for( const auto &child: _protectedChildren)
+        child->onEnter();
+}
+
+void ProtectedNode::onEnterTransitionDidFinish()
+{
+    Node::onEnterTransitionDidFinish();
+    for( const auto &child: _protectedChildren)
+        child->onEnterTransitionDidFinish();
+}
+
+void ProtectedNode::onExitTransitionDidStart()
+{
+    Node::onExitTransitionDidStart();
+    for( const auto &child: _protectedChildren)
+        child->onExitTransitionDidStart();
+}
+
+void ProtectedNode::onExit()
+{
+    Node::onExit();
+    for( const auto &child: _protectedChildren)
+        child->onExit();
+}
+
+void ProtectedNode::updateDisplayedOpacity(GLubyte parentOpacity)
+{
+	_displayedOpacity = _realOpacity * parentOpacity/255.0;
+    updateColor();
+    
+    if (_cascadeOpacityEnabled)
+    {
+        for(auto child : _children){
+            child->updateDisplayedOpacity(_displayedOpacity);
+        }
+        for(auto child : _protectedChildren){
+            child->updateDisplayedOpacity(_displayedOpacity);
+        }
+    }
+}
+
+void ProtectedNode::updateDisplayedColor(const Color3B& parentColor)
+{
+	_displayedColor.r = _realColor.r * parentColor.r/255.0;
+	_displayedColor.g = _realColor.g * parentColor.g/255.0;
+	_displayedColor.b = _realColor.b * parentColor.b/255.0;
+    updateColor();
+    
+    if (_cascadeColorEnabled)
+    {
+        for(const auto &child : _children){
+            child->updateDisplayedColor(_displayedColor);
+        }
+        for(const auto &child : _protectedChildren){
+            child->updateDisplayedColor(_displayedColor);
+        }
+    }
+}
+
+void ProtectedNode::disableCascadeColor()
+{
+    for(auto child : _children){
+        child->updateDisplayedColor(Color3B::WHITE);
+    }
+    for(auto child : _protectedChildren){
+        child->updateDisplayedColor(Color3B::WHITE);
+    }
+}
+
+NS_CC_END

cocos/ui/CCProtectedNode.h

@@ -0,0 +1,184 @@
+/****************************************************************************
+ Copyright (c) 2008-2010 Ricardo Quesada
+ Copyright (c) 2009      Valentin Milea
+ Copyright (c) 2010-2012 cocos2d-x.org
+ Copyright (c) 2011      Zynga Inc.
+ Copyright (c) 2013-2014 Chukong Technologies Inc.
+ 
+ http://www.cocos2d-x.org
+ 
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+ 
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+ 
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+ ****************************************************************************/
+
+#ifndef __CPROTECTEDCNODE_H__
+#define __CPROTECTEDCNODE_H__
+
+
+#include "CCNode.h"
+
+NS_CC_BEGIN
+
+class CC_DLL ProtectedNode : public Node
+{
+public:
+    static ProtectedNode * create(void);
+    
+    /// @{
+    /// @name Children and Parent
+    
+    /**
+     * Adds a child to the container with z-order as 0.
+     *
+     * If the child is added to a 'running' node, then 'onEnter' and 'onEnterTransitionDidFinish' will be called immediately.
+     *
+     * @param child A child node
+     */
+    virtual void addProtectedChild(Node * child);
+    /**
+     * Adds a child to the container with a local z-order
+     *
+     * If the child is added to a 'running' node, then 'onEnter' and 'onEnterTransitionDidFinish' will be called immediately.
+     *
+     * @param child     A child node
+     * @param zOrder    Z order for drawing priority. Please refer to `setLocalZOrder(int)`
+     */
+    virtual void addProtectedChild(Node * child, int localZOrder);
+    /**
+     * Adds a child to the container with z order and tag
+     *
+     * If the child is added to a 'running' node, then 'onEnter' and 'onEnterTransitionDidFinish' will be called immediately.
+     *
+     * @param child     A child node
+     * @param zOrder    Z order for drawing priority. Please refer to `setLocalZOrder(int)`
+     * @param tag       An integer to identify the node easily. Please refer to `setTag(int)`
+     */
+    virtual void addProtectedChild(Node* child, int localZOrder, int tag);
+    /**
+     * Gets a child from the container with its tag
+     *
+     * @param tag   An identifier to find the child node.
+     *
+     * @return a Node object whose tag equals to the input parameter
+     */
+    virtual Node * getProtectedChildByTag(int tag);
+    
+    ////// REMOVES //////
+    
+    /**
+     * Removes a child from the container. It will also cleanup all running actions depending on the cleanup parameter.
+     *
+     * @param child     The child node which will be removed.
+     * @param cleanup   true if all running actions and callbacks on the child node will be cleanup, false otherwise.
+     */
+    virtual void removeProtectedChild(Node* child, bool cleanup = true);
+    
+    /**
+     * Removes a child from the container by tag value. It will also cleanup all running actions depending on the cleanup parameter
+     *
+     * @param tag       An interger number that identifies a child node
+     * @param cleanup   true if all running actions and callbacks on the child node will be cleanup, false otherwise.
+     */
+    virtual void removeProtectedChildByTag(int tag, bool cleanup = true);
+    /**
+     * Removes all children from the container with a cleanup.
+     *
+     * @see `removeAllChildrenWithCleanup(bool)`
+     */
+    virtual void removeAllProtectedChildren();
+    /**
+     * Removes all children from the container, and do a cleanup to all running actions depending on the cleanup parameter.
+     *
+     * @param cleanup   true if all running actions on all children nodes should be cleanup, false oterwise.
+     * @js removeAllChildren
+     * @lua removeAllChildren
+     */
+    virtual void removeAllProtectedChildrenWithCleanup(bool cleanup);
+    
+    /**
+     * Reorders a child according to a new z value.
+     *
+     * @param child     An already added child node. It MUST be already added.
+     * @param localZOrder Z order for drawing priority. Please refer to setLocalZOrder(int)
+     */
+    virtual void reorderProtectedChild(Node * child, int localZOrder);
+    
+    /**
+     * Sorts the children array once before drawing, instead of every time when a child is added or reordered.
+     * This appraoch can improves the performance massively.
+     * @note Don't call this manually unless a child added needs to be removed in the same frame
+     */
+    virtual void sortAllProtectedChildren();
+    
+    /// @} end of Children and Parent
+    
+    virtual void visit(Renderer *renderer, const kmMat4 &parentTransform, bool transformUpdated) override;
+    
+    virtual void cleanup() override;
+    
+    virtual void onEnter() override;
+    
+    /** Event callback that is invoked when the Node enters in the 'stage'.
+     * If the Node enters the 'stage' with a transition, this event is called when the transition finishes.
+     * If you override onEnterTransitionDidFinish, you shall call its parent's one, e.g. Node::onEnterTransitionDidFinish()
+     * @js NA
+     * @lua NA
+     */
+    virtual void onEnterTransitionDidFinish() override;
+    
+    /**
+     * Event callback that is invoked every time the Node leaves the 'stage'.
+     * If the Node leaves the 'stage' with a transition, this event is called when the transition finishes.
+     * During onExit you can't access a sibling node.
+     * If you override onExit, you shall call its parent's one, e.g., Node::onExit().
+     * @js NA
+     * @lua NA
+     */
+    virtual void onExit() override;
+    
+    /**
+     * Event callback that is called every time the Node leaves the 'stage'.
+     * If the Node leaves the 'stage' with a transition, this callback is called when the transition starts.
+     * @js NA
+     * @lua NA
+     */
+    virtual void onExitTransitionDidStart() override;
+
+    virtual void updateDisplayedOpacity(GLubyte parentOpacity) override;
+    virtual void updateDisplayedColor(const Color3B& parentColor) override;
+    virtual void disableCascadeColor() override;
+    
+protected:
+    ProtectedNode();
+    virtual ~ProtectedNode();
+
+    
+    /// helper that reorder a child
+    void insertProtectedChild(Node* child, int z);
+    
+    Vector<Node*> _protectedChildren;        ///< array of children nodes
+    bool _reorderProtectedChildDirty;
+    
+private:
+    CC_DISALLOW_COPY_AND_ASSIGN(ProtectedNode);
+};
+
+
+NS_CC_END
+
+#endif // __CPROTECTEDCNODE_H__

cocos/ui/CMakeLists.txt

@@ -18,6 +18,7 @@ set(GUI_SRC
   UISlider.cpp
   UITextField.cpp
   UIRichText.cpp
+  CCProtectedNode.cpp
 )
 
 add_library(ui STATIC

cocos/ui/UIButton.cpp

@@ -102,10 +102,10 @@ void Button::initRenderer()
     _titleRenderer = Label::create();
     _titleRenderer->setAnchorPoint(Point::ANCHOR_MIDDLE);
 
-    Node::addChild(_buttonNormalRenderer, NORMAL_RENDERER_Z, -1);
+    addProtectedChild(_buttonNormalRenderer, NORMAL_RENDERER_Z, -1);
-    Node::addChild(_buttonClickedRenderer, PRESSED_RENDERER_Z, -1);
+    addProtectedChild(_buttonClickedRenderer, PRESSED_RENDERER_Z, -1);
-    Node::addChild(_buttonDisableRenderer, DISABLED_RENDERER_Z, -1);
+    addProtectedChild(_buttonDisableRenderer, DISABLED_RENDERER_Z, -1);
-    Node::addChild(_titleRenderer, TITLE_RENDERER_Z, -1);
+    addProtectedChild(_titleRenderer, TITLE_RENDERER_Z, -1);
 }
 
 void Button::setScale9Enabled(bool able)
@@ -116,9 +116,9 @@ void Button::setScale9Enabled(bool able)
     }
     _brightStyle = BRIGHT_NONE;
     _scale9Enabled = able;
-    Node::removeChild(_buttonNormalRenderer);
+    removeProtectedChild(_buttonNormalRenderer);
-    Node::removeChild(_buttonClickedRenderer);
+    removeProtectedChild(_buttonClickedRenderer);
-    Node::removeChild(_buttonDisableRenderer);
+    removeProtectedChild(_buttonDisableRenderer);
     _buttonNormalRenderer = nullptr;
     _buttonClickedRenderer = nullptr;
     _buttonDisableRenderer = nullptr;
@@ -138,9 +138,9 @@ void Button::setScale9Enabled(bool able)
     loadTextureNormal(_normalFileName.c_str(), _normalTexType);
     loadTexturePressed(_clickedFileName.c_str(), _pressedTexType);
     loadTextureDisabled(_disabledFileName.c_str(), _disabledTexType);
-    Node::addChild(_buttonNormalRenderer, NORMAL_RENDERER_Z, -1);
+    addProtectedChild(_buttonNormalRenderer, NORMAL_RENDERER_Z, -1);
-    Node::addChild(_buttonClickedRenderer, PRESSED_RENDERER_Z, -1);
+    addProtectedChild(_buttonClickedRenderer, PRESSED_RENDERER_Z, -1);
-    Node::addChild(_buttonDisableRenderer, DISABLED_RENDERER_Z, -1);
+    addProtectedChild(_buttonDisableRenderer, DISABLED_RENDERER_Z, -1);
     if (_scale9Enabled)
     {
         bool ignoreBefore = _ignoreSize;

cocos/ui/UICheckBox.cpp

@@ -95,11 +95,11 @@ void CheckBox::initRenderer()
     _backGroundBoxDisabledRenderer = Sprite::create();
     _frontCrossDisabledRenderer = Sprite::create();
         
-    Node::addChild(_backGroundBoxRenderer, BACKGROUNDBOX_RENDERER_Z, -1);
+    addProtectedChild(_backGroundBoxRenderer, BACKGROUNDBOX_RENDERER_Z, -1);
-    Node::addChild(_backGroundSelectedBoxRenderer, BACKGROUNDSELECTEDBOX_RENDERER_Z, -1);
+    addProtectedChild(_backGroundSelectedBoxRenderer, BACKGROUNDSELECTEDBOX_RENDERER_Z, -1);
-    Node::addChild(_frontCrossRenderer, FRONTCROSS_RENDERER_Z, -1);
+    addProtectedChild(_frontCrossRenderer, FRONTCROSS_RENDERER_Z, -1);
-    Node::addChild(_backGroundBoxDisabledRenderer, BACKGROUNDBOXDISABLED_RENDERER_Z, -1);
+    addProtectedChild(_backGroundBoxDisabledRenderer, BACKGROUNDBOXDISABLED_RENDERER_Z, -1);
-    Node::addChild(_frontCrossDisabledRenderer, FRONTCROSSDISABLED_RENDERER_Z, -1);
+    addProtectedChild(_frontCrossDisabledRenderer, FRONTCROSSDISABLED_RENDERER_Z, -1);
 }
 
 void CheckBox::loadTextures(const char *backGround, const char *backGroundSelected, const char *cross,const char* backGroundDisabled,const char* frontCrossDisabled,TextureResType texType)

cocos/ui/UIHelper.cpp

@@ -42,13 +42,16 @@ Widget* Helper::seekWidgetByTag(Widget* root, int tag)
     ssize_t length = arrayRootChildren.size();
     for (ssize_t i=0;i<length;i++)
     {
-        Widget* child = static_cast<Widget*>(arrayRootChildren.at(i));
+        Widget* child = dynamic_cast<Widget*>(arrayRootChildren.at(i));
+        if (child)
+        {
             Widget* res = seekWidgetByTag(child,tag);
             if (res != nullptr)
             {
                 return res;
             }
         }
+    }
     return nullptr;
 }
 
@@ -65,13 +68,16 @@ Widget* Helper::seekWidgetByName(Widget* root, const char *name)
     const auto& arrayRootChildren = root->getChildren();
     for (auto& subWidget : arrayRootChildren)
     {
-        Widget* child = static_cast<Widget*>(subWidget);
+        Widget* child = dynamic_cast<Widget*>(subWidget);
+        if (child)
+        {
             Widget* res = seekWidgetByName(child,name);
             if (res != nullptr)
             {
                 return res;
             }
         }
+    }
     return nullptr;
 }
 
@@ -84,13 +90,16 @@ Widget* Helper::seekWidgetByRelativeName(Widget *root, const char *name)
     const auto& arrayRootChildren = root->getChildren();
     for (auto& subWidget : arrayRootChildren)
     {
-        Widget* child = static_cast<Widget*>(subWidget);
+        Widget* child = dynamic_cast<Widget*>(subWidget);
+        if (child)
+        {
             RelativeLayoutParameter* layoutParameter = dynamic_cast<RelativeLayoutParameter*>(child->getLayoutParameter(LAYOUT_PARAMETER_RELATIVE));
             if (layoutParameter && strcmp(layoutParameter->getRelativeName(), name) == 0)
             {
                 return child;
             }
         }
+    }
     return nullptr;
 }
 
@@ -108,13 +117,16 @@ Widget* Helper::seekActionWidgetByActionTag(Widget* root, int tag)
     const auto& arrayRootChildren = root->getChildren();
     for (auto& subWidget : arrayRootChildren)
 	{
-		Widget* child = static_cast<Widget*>(subWidget);
+		Widget* child = dynamic_cast<Widget*>(subWidget);
+        if (child)
+        {
             Widget* res = seekActionWidgetByActionTag(child,tag);
             if (res != nullptr)
             {
                 return res;
             }
         }
+	}
 	return nullptr;
 }
 

cocos/ui/UIImageView.cpp

@@ -69,7 +69,7 @@ ImageView* ImageView::create()
 void ImageView::initRenderer()
 {
     _imageRenderer = Sprite::create();
-    Node::addChild(_imageRenderer, IMAGE_RENDERER_Z, -1);
+    addProtectedChild(_imageRenderer, IMAGE_RENDERER_Z, -1);
 }
 
 void ImageView::loadTexture(const char *fileName, TextureResType texType)
@@ -166,7 +166,7 @@ void ImageView::setScale9Enabled(bool able)
     
     
     _scale9Enabled = able;
-    Node::removeChild(_imageRenderer);
+    removeProtectedChild(_imageRenderer);
     _imageRenderer = nullptr;
     if (_scale9Enabled)
     {
@@ -177,7 +177,7 @@ void ImageView::setScale9Enabled(bool able)
         _imageRenderer = Sprite::create();
     }
     loadTexture(_textureFile.c_str(),_imageTexType);
-    Node::addChild(_imageRenderer, IMAGE_RENDERER_Z, -1);
+    addProtectedChild(_imageRenderer, IMAGE_RENDERER_Z, -1);
     if (_scale9Enabled)
     {
         bool ignoreBefore = _ignoreSize;

cocos/ui/UILayout.cpp

@@ -127,7 +127,7 @@ Layout* Layout::create()
 
 bool Layout::init()
 {
-    if (Node::init())
+    if (ProtectedNode::init())
     {
         initRenderer();
         setBright(true);
@@ -211,7 +211,7 @@ void Layout::visit(Renderer *renderer, const kmMat4 &parentTransform, bool paren
     }
     else
     {
-        Node::visit(renderer, parentTransform, parentTransformUpdated);
+        ProtectedNode::visit(renderer, parentTransform, parentTransformUpdated);
     }
 }
     
@@ -254,31 +254,49 @@ void Layout::stencilClippingVisit(Renderer *renderer, const kmMat4 &parentTransf
     _afterDrawStencilCmd.func = CC_CALLBACK_0(Layout::onAfterDrawStencil, this);
     renderer->addCommand(&_afterDrawStencilCmd);
     
-    int i = 0;
+    int i = 0;      // used by _children
+    int j = 0;      // used by _protectedChildren
     
-    if(!_children.empty())
-    {
     sortAllChildren();
-        // draw children zOrder < 0
+    sortAllProtectedChildren();
+    
+    //
+    // draw children and protectedChildren zOrder < 0
+    //
     for( ; i < _children.size(); i++ )
     {
         auto node = _children.at(i);
         
-            if ( node && node->getLocalZOrder() < 0 )
+        if ( node && node->getZOrder() < 0 )
             node->visit(renderer, _modelViewTransform, dirty);
         else
             break;
     }
-        // self draw
+    
+    for( ; j < _protectedChildren.size(); j++ )
+    {
+        auto node = _protectedChildren.at(j);
+        
+        if ( node && node->getZOrder() < 0 )
+            node->visit(renderer, _modelViewTransform, dirty);
+        else
+            break;
+    }
+    
+    //
+    // draw self
+    //
     this->draw(renderer, _modelViewTransform, dirty);
     
+    //
+    // draw children and protectedChildren zOrder >= 0
+    //
+    for(auto it=_protectedChildren.cbegin()+j; it != _protectedChildren.cend(); ++it)
+        (*it)->visit(renderer, _modelViewTransform, dirty);
+    
     for(auto it=_children.cbegin()+i; it != _children.cend(); ++it)
         (*it)->visit(renderer, _modelViewTransform, dirty);
-    }
+
-    else
-    {
-        this->draw(renderer, _modelViewTransform, dirty);
-    }
     
     _afterVisitCmdStencil.init(_globalZOrder);
     _afterVisitCmdStencil.func = CC_CALLBACK_0(Layout::onAfterVisitStencil, this);
@@ -368,7 +386,7 @@ void Layout::scissorClippingVisit(Renderer *renderer, const kmMat4& parentTransf
     _beforeVisitCmdScissor.func = CC_CALLBACK_0(Layout::onBeforeVisitScissor, this);
     renderer->addCommand(&_beforeVisitCmdScissor);
 
-    Node::visit(renderer, parentTransform, parentTransformUpdated);
+    ProtectedNode::visit(renderer, parentTransform, parentTransformUpdated);
     
     _afterVisitCmdScissor.init(_globalZOrder);
     _afterVisitCmdScissor.func = CC_CALLBACK_0(Layout::onAfterVisitScissor, this);
@@ -566,19 +584,10 @@ void Layout::setBackGroundImageScale9Enabled(bool able)
     {
         return;
     }
-    Node::removeChild(_backGroundImage);
+    removeProtectedChild(_backGroundImage);
     _backGroundImage = nullptr;
     _backGroundScale9Enabled = able;
-    if (_backGroundScale9Enabled)
+    addBackGroundImage();
-    {
-        _backGroundImage = extension::Scale9Sprite::create();
-        Node::addChild(_backGroundImage, BACKGROUNDIMAGE_Z, -1);
-    }
-    else
-    {
-        _backGroundImage = Sprite::create();
-        Node::addChild(_backGroundImage, BACKGROUNDIMAGE_Z, -1);
-    }
     setBackGroundImage(_backGroundImageFileName.c_str(),_bgImageTexType);
     setBackGroundImageCapInsets(_backGroundImageCapInsets);
 }
@@ -688,15 +697,13 @@ void Layout::addBackGroundImage()
     if (_backGroundScale9Enabled)
     {
         _backGroundImage = extension::Scale9Sprite::create();
-        _backGroundImage->setLocalZOrder(-1);
+        addProtectedChild(_backGroundImage, BACKGROUNDIMAGE_Z, -1);
-        Node::addChild(_backGroundImage, BACKGROUNDIMAGE_Z, -1);
         static_cast<extension::Scale9Sprite*>(_backGroundImage)->setPreferredSize(_size);
     }
     else
     {
         _backGroundImage = Sprite::create();
-        _backGroundImage->setLocalZOrder(-1);
+        addProtectedChild(_backGroundImage, BACKGROUNDIMAGE_Z, -1);
-        Node::addChild(_backGroundImage, BACKGROUNDIMAGE_Z, -1);
     }
     _backGroundImage->setPosition(Point(_size.width/2.0f, _size.height/2.0f));
 }
@@ -707,7 +714,7 @@ void Layout::removeBackGroundImage()
     {
         return;
     }
-    Node::removeChild(_backGroundImage);
+    removeProtectedChild(_backGroundImage);
     _backGroundImage = nullptr;
     _backGroundImageFileName = "";
     _backGroundImageTextureSize = Size::ZERO;
@@ -724,26 +731,26 @@ void Layout::setBackGroundColorType(LayoutBackGroundColorType type)
         case LAYOUT_COLOR_NONE:
             if (_colorRender)
             {
-                Node::removeChild(_colorRender);
+                removeProtectedChild(_colorRender);
                 _colorRender = nullptr;
             }
             if (_gradientRender)
             {
-                Node::removeChild(_gradientRender);
+                removeProtectedChild(_gradientRender);
                 _gradientRender = nullptr;
             }
             break;
         case LAYOUT_COLOR_SOLID:
             if (_colorRender)
             {
-                Node::removeChild(_colorRender);
+                removeProtectedChild(_colorRender);
                 _colorRender = nullptr;
             }
             break;
         case LAYOUT_COLOR_GRADIENT:
             if (_gradientRender)
             {
-                Node::removeChild(_gradientRender);
+                removeProtectedChild(_gradientRender);
                 _gradientRender = nullptr;
             }
             break;
@@ -760,7 +767,7 @@ void Layout::setBackGroundColorType(LayoutBackGroundColorType type)
             _colorRender->setContentSize(_size);
             _colorRender->setOpacity(_cOpacity);
             _colorRender->setColor(_cColor);
-            Node::addChild(_colorRender, BCAKGROUNDCOLORRENDERER_Z, -1);
+            addProtectedChild(_colorRender, BCAKGROUNDCOLORRENDERER_Z, -1);
             break;
         case LAYOUT_COLOR_GRADIENT:
             _gradientRender = LayerGradient::create();
@@ -769,7 +776,7 @@ void Layout::setBackGroundColorType(LayoutBackGroundColorType type)
             _gradientRender->setStartColor(_gStartColor);
             _gradientRender->setEndColor(_gEndColor);
             _gradientRender->setVector(_alongVector);
-            Node::addChild(_gradientRender, BCAKGROUNDCOLORRENDERER_Z, -1);
+            addProtectedChild(_gradientRender, BCAKGROUNDCOLORRENDERER_Z, -1);
             break;
         default:
             break;
@@ -911,9 +918,10 @@ const Size& Layout::getBackGroundImageTextureSize() const
 void Layout::setLayoutType(LayoutType type)
 {
     _layoutType = type;
-    for (auto& child : _widgetChildren)
+    for (auto& child : _children)
     {
-        if (child)
+        Widget* widgetChild = dynamic_cast<Widget*>(child);
+        if (widgetChild)
         {
             supplyTheLayoutParameterLackToChild(static_cast<Widget*>(child));
         }
@@ -946,9 +954,11 @@ void Layout::doLayout()
             Size layoutSize = getSize();
             float topBoundary = layoutSize.height;
             
-            for (auto& subWidget : _widgetChildren)
+            for (auto& subWidget : _children)
+            {
+                Widget* child = dynamic_cast<Widget*>(subWidget);
+                if (child)
                 {
-                Widget* child = static_cast<Widget*>(subWidget);
                     LinearLayoutParameter* layoutParameter = dynamic_cast<LinearLayoutParameter*>(child->getLayoutParameter(LAYOUT_PARAMETER_LINEAR));
                     
                     if (layoutParameter)
@@ -979,17 +989,19 @@ void Layout::doLayout()
                         topBoundary = child->getBottomInParent() - mg.bottom;
                     }
                 }
+            }
             break;
         }
         case LAYOUT_LINEAR_HORIZONTAL:
         {
             Size layoutSize = getSize();
             float leftBoundary = 0.0f;
-            for (auto& subWidget : _widgetChildren)
+            for (auto& subWidget : _children)
+            {
+                Widget* child = dynamic_cast<Widget*>(subWidget);
+                if (child)
                 {
-                Widget* child = static_cast<Widget*>(subWidget);
                     LinearLayoutParameter* layoutParameter = dynamic_cast<LinearLayoutParameter*>(child->getLayoutParameter(LAYOUT_PARAMETER_LINEAR));
-                
                     if (layoutParameter)
                     {
                         LinearGravity childGravity = layoutParameter->getGravity();
@@ -1018,21 +1030,28 @@ void Layout::doLayout()
                         leftBoundary = child->getRightInParent() + mg.right;
                     }
                 }
+            }
             break;
         }
         case LAYOUT_RELATIVE:
         {
-            ssize_t unlayoutChildCount = _widgetChildren.size();
+            ssize_t unlayoutChildCount = 0;
             Size layoutSize = getSize();
-            for (auto& subWidget : _widgetChildren)
+            Vector<Widget*> widgetChildren;
+            for (auto& subWidget : _children)
+            {
+                Widget* child = dynamic_cast<Widget*>(subWidget);
+                if (child)
                 {
-                Widget* child = static_cast<Widget*>(subWidget);
                     RelativeLayoutParameter* layoutParameter = dynamic_cast<RelativeLayoutParameter*>(child->getLayoutParameter(LAYOUT_PARAMETER_RELATIVE));
                     layoutParameter->_put = false;
+                    unlayoutChildCount++;
+                    widgetChildren.pushBack(child);
+                }
             }
             while (unlayoutChildCount > 0)
             {
-                for (auto& subWidget : _widgetChildren)
+                for (auto& subWidget : widgetChildren)
                 {
                     Widget* child = static_cast<Widget*>(subWidget);
                     RelativeLayoutParameter* layoutParameter = dynamic_cast<RelativeLayoutParameter*>(child->getLayoutParameter(LAYOUT_PARAMETER_RELATIVE));
@@ -1359,6 +1378,7 @@ void Layout::doLayout()
                     }
                 }
             }
+            widgetChildren.clear();
             break;
         }
         default:

cocos/ui/UILoadingBar.cpp

@@ -67,7 +67,7 @@ LoadingBar* LoadingBar::create()
 void LoadingBar::initRenderer()
 {
     _barRenderer = Sprite::create();
-    Node::addChild(_barRenderer, BAR_RENDERER_Z, -1);
+    addProtectedChild(_barRenderer, BAR_RENDERER_Z, -1);
     _barRenderer->setAnchorPoint(Point(0.0,0.5));
 }
 
@@ -172,7 +172,7 @@ void LoadingBar::setScale9Enabled(bool enabled)
         return;
     }
     _scale9Enabled = enabled;
-    Node::removeChild(_barRenderer);
+    removeProtectedChild(_barRenderer);
     _barRenderer = nullptr;
     if (_scale9Enabled)
     {
@@ -183,7 +183,7 @@ void LoadingBar::setScale9Enabled(bool enabled)
         _barRenderer = Sprite::create();
     }
     loadTexture(_textureFile.c_str(),_renderBarTexType);
-    Node::addChild(_barRenderer, BAR_RENDERER_Z, -1);
+    addProtectedChild(_barRenderer, BAR_RENDERER_Z, -1);
     if (_scale9Enabled)
     {
         bool ignoreBefore = _ignoreSize;

cocos/ui/UIRichText.cpp

@@ -148,7 +148,7 @@ void RichText::initRenderer()
 {
     _elementRenderersContainer = Node::create();
     _elementRenderersContainer->setAnchorPoint(Point(0.5f, 0.5f));
-    Node::addChild(_elementRenderersContainer, 0, -1);
+    addProtectedChild(_elementRenderersContainer, 0, -1);
 }
 
 void RichText::insertElement(RichElement *element, int index)
@@ -437,6 +437,11 @@ void RichText::ignoreContentAdaptWithSize(bool ignore)
     }
 }
     
+std::string RichText::getDescription() const
+{
+    return "RichText";
+}
+
 }
 
 NS_CC_END

cocos/ui/UIRichText.h

@@ -108,6 +108,7 @@ public:
     virtual const Size& getContentSize() const;
     void formatText();
     virtual void ignoreContentAdaptWithSize(bool ignore);
+    virtual std::string getDescription() const override;
 	
 CC_CONSTRUCTOR_ACCESS:
     virtual bool init() override;

cocos/ui/UIScrollView.cpp

@@ -311,46 +311,6 @@ Widget* ScrollView::getChildByName(const char *name)
     return _innerContainer->getChildByName(name);
 }
     
-void ScrollView::addNode(Node* node)
-{
-    Layout::addNode(node);
-}
-
-void ScrollView::addNode(Node * node, int zOrder)
-{
-    Layout::addNode(node, zOrder);
-}
-
-void ScrollView::addNode(Node* node, int zOrder, int tag)
-{
-    _innerContainer->addNode(node, zOrder, tag);
-}
-
-Node* ScrollView::getNodeByTag(int tag)
-{
-    return _innerContainer->getNodeByTag(tag);
-}
-
-Vector<Node*>& ScrollView::getNodes()
-{
-    return _innerContainer->getNodes();
-}
-
-void ScrollView::removeNode(Node* node)
-{
-    _innerContainer->removeNode(node);
-}
-
-void ScrollView::removeNodeByTag(int tag)
-{
-    _innerContainer->removeNodeByTag(tag);
-}
-
-void ScrollView::removeAllNodes()
-{
-    _innerContainer->removeAllNodes();
-}
-
 void ScrollView::moveChildren(float offsetX, float offsetY)
 {
     _moveChildPoint = _innerContainer->getPosition() + Point(offsetX, offsetY);

cocos/ui/UIScrollView.h

@@ -286,22 +286,6 @@ public:
     
     virtual Widget* getChildByName(const char* name) override;
     
-    virtual void addNode(Node* node) override;
-    
-    virtual void addNode(Node * node, int zOrder) override;
-    
-    virtual void addNode(Node* node, int zOrder, int tag) override;
-    
-    virtual Node * getNodeByTag(int tag) override;
-    
-    virtual Vector<Node*>& getNodes() override;
-    
-    virtual void removeNode(Node* node) override;
-    
-    virtual void removeNodeByTag(int tag) override;
-    
-    virtual void removeAllNodes() override;
-    
     virtual bool onTouchBegan(Touch *touch, Event *unusedEvent) override;
     virtual void onTouchMoved(Touch *touch, Event *unusedEvent) override;
     virtual void onTouchEnded(Touch *touch, Event *unusedEvent) override;

cocos/ui/UISlider.cpp

@@ -97,8 +97,8 @@ void Slider::initRenderer()
     _barRenderer = Sprite::create();
     _progressBarRenderer = Sprite::create();
     _progressBarRenderer->setAnchorPoint(Point(0.0f, 0.5f));
-    Node::addChild(_barRenderer, BASEBAR_RENDERER_Z, -1);
+    addProtectedChild(_barRenderer, BASEBAR_RENDERER_Z, -1);
-    Node::addChild(_progressBarRenderer, PROGRESSBAR_RENDERER_Z, -1);
+    addProtectedChild(_progressBarRenderer, PROGRESSBAR_RENDERER_Z, -1);
     _slidBallNormalRenderer = Sprite::create();
     _slidBallPressedRenderer = Sprite::create();
     _slidBallPressedRenderer->setVisible(false);
@@ -108,7 +108,7 @@ void Slider::initRenderer()
     _slidBallRenderer->addChild(_slidBallNormalRenderer);
     _slidBallRenderer->addChild(_slidBallPressedRenderer);
     _slidBallRenderer->addChild(_slidBallDisabledRenderer);
-    Node::addChild(_slidBallRenderer, SLIDBALL_RENDERER_Z, -1);
+    addProtectedChild(_slidBallRenderer, SLIDBALL_RENDERER_Z, -1);
 }
 
 void Slider::loadBarTexture(const char* fileName, TextureResType texType)
@@ -196,8 +196,8 @@ void Slider::setScale9Enabled(bool able)
     }
     
     _scale9Enabled = able;
-    Node::removeChild(_barRenderer);
+    removeProtectedChild(_barRenderer);
-    Node::removeChild(_progressBarRenderer);
+    removeProtectedChild(_progressBarRenderer);
     _barRenderer = nullptr;
     _progressBarRenderer = nullptr;
     if (_scale9Enabled)
@@ -212,8 +212,8 @@ void Slider::setScale9Enabled(bool able)
     }
     loadBarTexture(_textureFile.c_str(), _barTexType);
     loadProgressBarTexture(_progressBarTextureFile.c_str(), _progressBarTexType);
-    Node::addChild(_barRenderer, BASEBAR_RENDERER_Z, -1);
+    addProtectedChild(_barRenderer, BASEBAR_RENDERER_Z, -1);
-    Node::addChild(_progressBarRenderer, PROGRESSBAR_RENDERER_Z, -1);
+    addProtectedChild(_progressBarRenderer, PROGRESSBAR_RENDERER_Z, -1);
     if (_scale9Enabled)
     {
         bool ignoreBefore = _ignoreSize;

cocos/ui/UIText.cpp

@@ -72,7 +72,7 @@ bool Text::init()
 void Text::initRenderer()
 {
     _labelRenderer = Label::create();
-    Node::addChild(_labelRenderer, LABEL_RENDERER_Z, -1);
+    addProtectedChild(_labelRenderer, LABEL_RENDERER_Z, -1);
 }
 
 void Text::setText(const std::string& text)

cocos/ui/UITextAtlas.cpp

@@ -62,7 +62,7 @@ TextAtlas* TextAtlas::create()
 void TextAtlas::initRenderer()
 {
     _labelAtlasRenderer = LabelAtlas::create();
-    Node::addChild(_labelAtlasRenderer, LABELATLAS_RENDERER_Z, -1);
+    addProtectedChild(_labelAtlasRenderer, LABELATLAS_RENDERER_Z, -1);
 }
 
 void TextAtlas::setProperty(const std::string& stringValue, const std::string& charMapFile, int itemWidth, int itemHeight, const std::string& startCharMap)

cocos/ui/UITextBMFont.cpp

@@ -60,7 +60,7 @@ TextBMFont* TextBMFont::create()
 void TextBMFont::initRenderer()
 {
     _labelBMFontRenderer = cocos2d::LabelBMFont::create();
-    Node::addChild(_labelBMFontRenderer, LABELBMFONT_RENDERER_Z, -1);
+    addProtectedChild(_labelBMFontRenderer, LABELBMFONT_RENDERER_Z, -1);
 }
 
 void TextBMFont::setFntFile(const char *fileName)

cocos/ui/UITextField.cpp

@@ -392,7 +392,7 @@ void TextField::onEnter()
 void TextField::initRenderer()
 {
     _textFieldRenderer = UICCTextField::create("input words here", "Thonburi", 20);
-    Node::addChild(_textFieldRenderer, TEXTFIELD_RENDERER_Z, -1);
+    addProtectedChild(_textFieldRenderer, TEXTFIELD_RENDERER_Z, -1);
 }
 
 void TextField::setTouchSize(const Size &size)

cocos/ui/UIWidget.cpp

@@ -56,7 +56,6 @@ _positionPercent(Point::ZERO),
 _reorderWidgetChildDirty(true),
 _hitted(false),
 _touchListener(nullptr),
-_nodes(NULL),
 _color(Color3B::WHITE),
 _opacity(255),
 _flippedX(false),
@@ -69,9 +68,7 @@ Widget::~Widget()
 {
     _touchEventListener = nullptr;
     _touchEventSelector = nullptr;
-    _widgetChildren.clear();
     setTouchEnabled(false);
-    _nodes.clear();
 }
 
 Widget* Widget::create()
@@ -88,7 +85,7 @@ Widget* Widget::create()
 
 bool Widget::init()
 {
-    if (Node::init())
+    if (ProtectedNode::init())
     {
         initRenderer();
         setBright(true);
@@ -102,229 +99,75 @@ bool Widget::init()
 void Widget::onEnter()
 {
     updateSizeAndPosition();
-    Node::onEnter();
+    ProtectedNode::onEnter();
 }
 
 void Widget::onExit()
 {
     unscheduleUpdate();
-    Node::onExit();
+    ProtectedNode::onExit();
 }
 
 void Widget::visit(Renderer *renderer, const kmMat4 &parentTransform, bool parentTransformUpdated)
 {
     if (_enabled)
     {
-        Node::visit(renderer, parentTransform, parentTransformUpdated);
+        ProtectedNode::visit(renderer, parentTransform, parentTransformUpdated);
     }
 }
 
-void Widget::addChild(Node *child)
-{
-    Node::addChild(child);
-}
-
-void Widget::addChild(Node * child, int zOrder)
-{
-    Node::addChild(child, zOrder);
-}
-
-void Widget::addChild(Node* child, int zOrder, int tag)
-{
-    CCASSERT(dynamic_cast<Widget*>(child) != nullptr, "Widget only supports Widgets as children");
-    Node::addChild(child, zOrder, tag);
-    _widgetChildren.pushBack(child);
-}
-
-void Widget::sortAllChildren()
-{
-    _reorderWidgetChildDirty = _reorderChildDirty;
-    Node::sortAllChildren();
-    if( _reorderWidgetChildDirty )
-    {
-        std::sort( std::begin(_widgetChildren), std::end(_widgetChildren), nodeComparisonLess );
-        _reorderWidgetChildDirty = false;
-    }
-}
-
-Node* Widget::getChildByTag(int aTag)
-{
-    CCASSERT( aTag != Node::INVALID_TAG, "Invalid tag");
-
-    for (auto& child : _widgetChildren)
-    {
-        if(child && child->getTag() == aTag)
-            return child;
-    }
-    return nullptr;
-}
-
-Vector<Node*>& Widget::getChildren()
-{
-    return _widgetChildren;
-}
-
-const Vector<Node*>& Widget::getChildren() const
-{
-    return _widgetChildren;
-}
-
-ssize_t Widget::getChildrenCount() const
-{
-    return _widgetChildren.size();
-}
-
 Widget* Widget::getWidgetParent()
 {
     return dynamic_cast<Widget*>(getParent());
 }
 
-void Widget::removeFromParent()
-{
-    removeFromParentAndCleanup(true);
-}
-
-void Widget::removeFromParentAndCleanup(bool cleanup)
-{
-    Node::removeFromParentAndCleanup(cleanup);
-}
-
-void Widget::removeChild(Node *child, bool cleanup)
-{
-    Node::removeChild(child, cleanup);
-    _widgetChildren.eraseObject(child);
-}
-
-void Widget::removeChildByTag(int tag, bool cleanup)
-{
-    CCASSERT( tag != Node::INVALID_TAG, "Invalid tag");
-
-    Node *child = getChildByTag(tag);
-
-    if (child == nullptr)
-    {
-        CCLOG("cocos2d: removeChildByTag(tag = %d): child not found!", tag);
-    }
-    else
-    {
-        removeChild(child, cleanup);
-    }
-}
-
-void Widget::removeAllChildren()
-{
-    removeAllChildrenWithCleanup(true);
-}
-
-void Widget::removeAllChildrenWithCleanup(bool cleanup)
-{
-    for (auto& child : _widgetChildren)
-    {
-        if (child)
-        {
-            Node::removeChild(child);
-        }
-    }
-    _widgetChildren.clear();
-}
-
 void Widget::setEnabled(bool enabled)
 {
     _enabled = enabled;
-    for (auto& child : _widgetChildren)
+    for (auto& child : _children)
     {
         if (child)
         {
-            static_cast<Widget*>(child)->setEnabled(enabled);
+            Widget* widgetChild = dynamic_cast<Widget*>(child);
+            if (widgetChild)
+            {
+                widgetChild->setEnabled(enabled);
+            }
+        }
+    }
+    
+    for (auto& child : _protectedChildren)
+    {
+        if (child)
+        {
+            Widget* widgetChild = dynamic_cast<Widget*>(child);
+            if (widgetChild)
+            {
+                widgetChild->setEnabled(enabled);
+            }
         }
     }
 }
 
 Widget* Widget::getChildByName(const char *name)
 {
-    for (auto& child : _widgetChildren)
+    for (auto& child : _children)
     {
         if (child)
         {
-            Widget* widgetChild = static_cast<Widget*>(child);
+            Widget* widgetChild = dynamic_cast<Widget*>(child);
+            if (widgetChild)
+            {
                 if (strcmp(widgetChild->getName(), name) == 0)
                 {
                     return widgetChild;
                 }
             }
         }
-    return nullptr;
-}
-
-void Widget::addNode(Node* node)
-{
-    addNode(node, node->getLocalZOrder(), node->getTag());
-}
-
-void Widget::addNode(Node * node, int zOrder)
-{
-    addNode(node, zOrder, node->getTag());
-}
-
-void Widget::addNode(Node* node, int zOrder, int tag)
-{
-    CCAssert(dynamic_cast<Widget*>(node) == nullptr, "Widget only supports Nodes as renderer");
-    Node::addChild(node, zOrder, tag);
-    _nodes.pushBack(node);
-}
-
-Node* Widget::getNodeByTag(int tag)
-{
-    CCAssert( tag != Node::INVALID_TAG, "Invalid tag");
-
-    for (auto& node : _nodes)
-    {
-        if(node && node->getTag() == tag)
-            return node;
     }
     return nullptr;
 }
     
-Vector<Node*>& Widget::getNodes()
-{
-    return _nodes;
-}
-
-void Widget::removeNode(Node* node)
-{
-    Node::removeChild(node);
-    _nodes.eraseObject(node);
-}
-
-void Widget::removeNodeByTag(int tag)
-{
-    CCAssert( tag != Node::INVALID_TAG, "Invalid tag");
-
-    Node *node = this->getNodeByTag(tag);
-
-    if (node == nullptr)
-    {
-        CCLOG("cocos2d: removeNodeByTag(tag = %d): child not found!", tag);
-    }
-    else
-    {
-        this->removeNode(node);
-    }
-}
-
-void Widget::removeAllNodes()
-{
-    for (auto& node : _nodes)
-    {
-        if (node)
-        {
-            Node::removeChild(node);
-        }
-    }
-    _nodes.clear();
-}
-
-
 void Widget::initRenderer()
 {
 }
@@ -544,9 +387,10 @@ void Widget::onSizeChanged()
 {
     for (auto& child : getChildren())
     {
-        if (child)
+        Widget* widgetChild = dynamic_cast<Widget*>(child);
+        if (widgetChild)
         {
-            static_cast<Widget*>(child)->updateSizeAndPosition();
+            widgetChild->updateSizeAndPosition();
         }
     }
 }
@@ -850,7 +694,7 @@ void Widget::setPosition(const Point &pos)
             }
         }
     }
-    Node::setPosition(pos);
+    ProtectedNode::setPosition(pos);
 }
 
 void Widget::setPositionPercent(const Point &percent)
@@ -986,9 +830,12 @@ void Widget::copyClonedWidgetChildren(Widget* model)
 
     for (auto& subWidget : modelChildren)
     {
-        Widget* child = static_cast<Widget*>(subWidget);
+        Widget* child = dynamic_cast<Widget*>(subWidget);
+        if (child)
+        {
             addChild(child->clone());
         }
+    }
 }
 
 void Widget::copySpecialProperties(Widget* model)

cocos/ui/UIWidget.h

@@ -25,7 +25,7 @@ THE SOFTWARE.
 #ifndef __UIWIDGET_H__
 #define __UIWIDGET_H__
 
-#include "CCNode.h"
+#include "ui/CCProtectedNode.h"
 #include "ui/UILayoutDefine.h"
 #include "ui/UILayoutParameter.h"
 #include "ui/GUIDefine.h"
@@ -79,7 +79,7 @@ typedef void (Ref::*SEL_TouchEvent)(Ref*,TouchEventType);
 *   @js NA
 *   @lua NA
 */
-class Widget : public Node
+class Widget : public ProtectedNode
 {
 public:
     /**
@@ -199,114 +199,6 @@ public:
      */
     float getTopInParent();
 
-    /**
-     * Adds a child to the container with z-order as 0.
-     *
-     * If the child is added to a 'running' node, then 'onEnter' and 'onEnterTransitionDidFinish' will be called immediately.
-     *
-     * @param child A child node
-     */
-    virtual void addChild(Node * child) override;
-    /**
-     * Adds a child to the container with a z-order
-     *
-     * If the child is added to a 'running' node, then 'onEnter' and 'onEnterTransitionDidFinish' will be called immediately.
-     *
-     * @param child     A child node
-     * @param zOrder    Z order for drawing priority. Please refer to setLocalZOrder(int)
-     */
-    virtual void addChild(Node * child, int zOrder) override;
-    /**
-     * Adds a child to the container with z order and tag
-     *
-     * If the child is added to a 'running' node, then 'onEnter' and 'onEnterTransitionDidFinish' will be called immediately.
-     *
-     * @param child     A child node
-     * @param zOrder    Z order for drawing priority. Please refer to setLocalZOrder(int)
-     * @param tag       A interger to identify the node easily. Please refer to setTag(int)
-     */
-    virtual void addChild(Node* child, int zOrder, int tag) override;
-    /**
-     * Gets a child from the container with its tag
-     *
-     * @param tag   An identifier to find the child node.
-     *
-     * @return a Node object whose tag equals to the input parameter
-     */
-    virtual Node * getChildByTag(int tag) override;
-
-    virtual void sortAllChildren() override;
-    /**
-     * Return an array of children
-     *
-     * Composing a "tree" structure is a very important feature of Node
-     * Here's a sample code of traversing children array:
-     @code
-     Node* node = NULL;
-     CCARRAY_FOREACH(parent->getChildren(), node)
-     {
-     node->setPosition(0,0);
-     }
-     @endcode
-     * This sample code traverses all children nodes, and set their position to (0,0)
-     *
-     * @return An array of children
-     */
-    virtual Vector<Node*>& getChildren() override;
-    virtual const Vector<Node*>& getChildren() const override;
-
-    /**
-     * Get the amount of children.
-     *
-     * @return The amount of children.
-     */
-    virtual ssize_t getChildrenCount() const override;
-
-    /**
-     * Removes this node itself from its parent node with a cleanup.
-     * If the node orphan, then nothing happens.
-     * @see `removeFromParentAndCleanup(bool)`
-     */
-    virtual void removeFromParent() override;
-    /**
-     * Removes this node itself from its parent node.
-     * If the node orphan, then nothing happens.
-     * @param cleanup   true if all actions and callbacks on this node should be removed, false otherwise.
-     * @js removeFromParent
-     * @lua removeFromParent
-     */
-    virtual void removeFromParentAndCleanup(bool cleanup) override;
-
-    /**
-     * Removes a child from the container. It will also cleanup all running actions depending on the cleanup parameter.
-     *
-     * @param child     The child node which will be removed.
-     * @param cleanup   true if all running actions and callbacks on the child node will be cleanup, false otherwise.
-     */
-    virtual void removeChild(Node* child, bool cleanup = true) override;
-
-    /**
-     * Removes a child from the container by tag value. It will also cleanup all running actions depending on the cleanup parameter
-     *
-     * @param tag       An interger number that identifies a child node
-     * @param cleanup   true if all running actions and callbacks on the child node will be cleanup, false otherwise.
-     */
-    virtual void removeChildByTag(int tag, bool cleanup = true) override;
-    /**
-     * Removes all children from the container with a cleanup.
-     *
-     * @see `removeAllChildrenWithCleanup(bool)`
-     */
-    virtual void removeAllChildren() override;
-    /**
-     * Removes all children from the container, and do a cleanup to all running actions depending on the cleanup parameter.
-     *
-     * @param cleanup   true if all running actions on all children nodes should be cleanup, false oterwise.
-     * @js removeAllChildren
-     * @lua removeAllChildren
-     */
-    virtual void removeAllChildrenWithCleanup(bool cleanup) override;
-
     /**
      * Gets a child from the container with its name
      *
@@ -316,22 +208,6 @@ public:
      */
     virtual Widget* getChildByName(const char* name);
 
-    virtual void addNode(Node* node);
-
-    virtual void addNode(Node * node, int zOrder);
-
-    virtual void addNode(Node* node, int zOrder, int tag);
-
-    virtual Node * getNodeByTag(int tag);
-
-    virtual Vector<Node*>& getNodes();
-
-    virtual void removeNode(Node* node);
-
-    virtual void removeNodeByTag(int tag);
-
-    virtual void removeAllNodes();
-
     virtual void visit(cocos2d::Renderer *renderer, const kmMat4 &parentTransform, bool parentTransformUpdated) override;
 
     /**
@@ -713,13 +589,11 @@ protected:
     bool _reorderWidgetChildDirty;
     bool _hitted;
     EventListenerTouchOneByOne* _touchListener;
-    Vector<Node*> _nodes;
     Color3B _color;
     GLubyte _opacity;
     bool _flippedX;
     bool _flippedY;
     Map<int, LayoutParameter*> _layoutParameterDictionary;
-    Vector<Node*> _widgetChildren;
 
 };
 }

cocos/ui/proj.win32/libGUI.vcxproj

@@ -11,6 +11,7 @@
     </ProjectConfiguration>
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="..\CCProtectedNode.h" />
     <ClInclude Include="..\CocosGUI.h" />
     <ClInclude Include="..\UIButton.h" />
     <ClInclude Include="..\UICheckBox.h" />
@@ -33,6 +34,7 @@
     <ClInclude Include="..\UIWidget.h" />
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="..\CCProtectedNode.cpp" />
     <ClCompile Include="..\CocosGUI.cpp" />
     <ClCompile Include="..\UIButton.cpp" />
     <ClCompile Include="..\UICheckBox.cpp" />

cocos/ui/proj.win32/libGUI.vcxproj.filters

@@ -78,6 +78,9 @@
     <ClInclude Include="..\UIRichText.h">
       <Filter>UIWidgets</Filter>
     </ClInclude>
+    <ClInclude Include="..\CCProtectedNode.h">
+      <Filter>BaseClasses</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\UIScrollView.cpp">
@@ -137,5 +140,8 @@
     <ClCompile Include="..\UIRichText.cpp">
       <Filter>UIWidgets</Filter>
     </ClCompile>
+    <ClCompile Include="..\CCProtectedNode.cpp">
+      <Filter>BaseClasses</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>

tests/cpp-tests/Classes/ExtensionsTest/CocoStudioGUITest/UIWidgetAddNodeTest/UIWidgetAddNodeTest.cpp

@@ -36,7 +36,7 @@ bool UIWidgetAddNodeTest::init()
         
         Sprite* sprite = Sprite::create("cocosui/ccicon.png");
         sprite->setPosition(Point(0, sprite->getBoundingBox().size.height / 4));
-        widget->addNode(sprite);
+        widget->addChild(sprite);
         
         return true;
     }

tests/cpp-tests/Classes/ExtensionsTest/CocoStudioGUITest/UIWidgetAddNodeTest/UIWidgetAddNodeTest_Editor.cpp

@@ -41,7 +41,7 @@ bool UIWidgetAddNodeTest_Editor::init()
         _layout->addChild(widget);
         
         Sprite* sprite = Sprite::create("cocosui/ccicon.png");
-        widget->addNode(sprite);
+        widget->addChild(sprite);
         
         return true;
     }