issue #3821:LabelTTF re-implemented as a wrapper of Label.

cocos/2d/CCLabelTTF.cpp

@@ -24,32 +24,20 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ****************************************************************************/
 #include "CCLabelTTF.h"
-#include "CCDirector.h"
+#include "CCLabel.h"
-#include "CCGLProgram.h"
+#include "CCString.h"
-#include "CCShaderCache.h"
-#include "CCApplication.h"
 
 NS_CC_BEGIN
 
-#if CC_USE_LA88_LABELS
-#define SHADER_PROGRAM GLProgram::SHADER_NAME_POSITION_TEXTURE_COLOR
-#else
-#define SHADER_PROGRAM GLProgram::SHADER_NAME_POSITION_TEXTUREA8Color
-#endif
-
-//
-//CCLabelTTF
-//
 LabelTTF::LabelTTF()
-: _alignment(TextHAlignment::CENTER)
-, _vAlignment(TextVAlignment::TOP)
-, _fontName("")
-, _fontSize(0.0)
-, _string("")
-, _shadowEnabled(false)
-, _strokeEnabled(false)
-, _textFillColor(Color3B::WHITE)
 {
+    _renderLabel = Label::create();
+    this->addChild(_renderLabel);
+    this->setAnchorPoint(Point::ANCHOR_MIDDLE);
+
+    _contentDirty = false;
+    _cascadeColorEnabled = true;
+    _cascadeOpacityEnabled = true;
 }
 
 LabelTTF::~LabelTTF()
@@ -59,7 +47,7 @@ LabelTTF::~LabelTTF()
 LabelTTF * LabelTTF::create()
 {
     LabelTTF * ret = new LabelTTF();
-    if (ret && ret->init())
+    if (ret)
     {
         ret->autorelease();
     }
@@ -70,18 +58,6 @@ LabelTTF * LabelTTF::create()
     return ret;
 }
 
-LabelTTF * LabelTTF::create(const std::string& string, const std::string& fontName, float fontSize)
-{
-    return LabelTTF::create(string, fontName, fontSize,
-                              Size::ZERO, TextHAlignment::CENTER, TextVAlignment::TOP);
-}
-
-LabelTTF * LabelTTF::create(const std::string& string, const std::string& fontName, float fontSize,
-                                const Size& dimensions, TextHAlignment hAlignment)
-{
-    return LabelTTF::create(string, fontName, fontSize, dimensions, hAlignment, TextVAlignment::TOP);
-}
-
 LabelTTF* LabelTTF::create(const std::string& string, const std::string& fontName, float fontSize,
                                const Size &dimensions, TextHAlignment hAlignment, 
                                TextVAlignment vAlignment)
@@ -108,449 +84,189 @@ LabelTTF * LabelTTF::createWithFontDefinition(const std::string& string, FontDef
     return nullptr;
 }
 
-bool LabelTTF::init()
-{
-    return this->initWithString("", "Helvetica", 12);
-}
-
-bool LabelTTF::initWithString(const std::string& label, const std::string& fontName, float fontSize,
-                                const Size& dimensions, TextHAlignment alignment)
-{
-    return this->initWithString(label, fontName, fontSize, dimensions, alignment, TextVAlignment::TOP);
-}
-
-bool LabelTTF::initWithString(const std::string& label, const std::string& fontName, float fontSize)
-{
-    return this->initWithString(label, fontName, fontSize, 
-                                Size::ZERO, TextHAlignment::LEFT, TextVAlignment::TOP);
-}
-
 bool LabelTTF::initWithString(const std::string& string, const std::string& fontName, float fontSize,
                                 const cocos2d::Size &dimensions, TextHAlignment hAlignment,
                                 TextVAlignment vAlignment)
 {
-    if (Sprite::init())
+    _renderLabel->setString(string);
-    {
+    _renderLabel->setFontSize(fontSize);
-        // shader program
+    _renderLabel->setDimensions(dimensions.width,dimensions.height);
-//        this->setShaderProgram(ShaderCache::getInstance()->getProgram(SHADER_PROGRAM));
+    _renderLabel->setAlignment(hAlignment,vAlignment);
+    _renderLabel->setFontName(fontName);
+    this->setContentSize(_renderLabel->getContentSize());
 
-        _dimensions = Size(dimensions.width, dimensions.height);
+    return true;
-        _alignment = hAlignment;
-        _vAlignment = vAlignment;
-        _fontName = fontName;
-        _fontSize = fontSize;
-        
-        this->setString(string);
-        
-        return true;
-    }
-    
-    return false;
 }
 
 bool LabelTTF::initWithStringAndTextDefinition(const std::string& string, FontDefinition &textDefinition)
 {
-    if (Sprite::init())
+    _renderLabel->setFontDefinition(textDefinition);
-    {
+    _renderLabel->setString(string);
-        // shader program
+    this->setContentSize(_renderLabel->getContentSize());
-        this->setShaderProgram(ShaderCache::getInstance()->getProgram(SHADER_PROGRAM));
+    
-        
+    return true;
-        // prepare everythin needed to render the label
-        _updateWithTextDefinition(textDefinition, false);
-        
-        // set the string
-        this->setString(string);
-        
-        //
-        return true;
-    }
-    else
-    {
-        return false;
-    }
 }
 
-
 void LabelTTF::setString(const std::string &string)
 {
-    if (_string.compare(string))
+    _renderLabel->setString(string);
-    {
+    _contentDirty = true;
-        _string = string;
-        
-        this->updateTexture();
-    }
 }
 
 const std::string& LabelTTF::getString() const
 {
-    return _string;
+    return _renderLabel->getString();
 }
 
 std::string LabelTTF::getDescription() const
 {
-    return StringUtils::format("<LabelTTF | FontName = %s, FontSize = %.1f, Label = '%s'>", _fontName.c_str(), _fontSize, _string.c_str());
+    return StringUtils::format("<LabelTTF | FontName = %s, FontSize = %.1f, Label = '%s'>", _renderLabel->getFontName().c_str(), _renderLabel->getFontSize(), _renderLabel->getString().c_str());
 }
 
 TextHAlignment LabelTTF::getHorizontalAlignment() const
 {
-    return _alignment;
+    return _renderLabel->getHorizontalAlignment();
 }
 
 void LabelTTF::setHorizontalAlignment(TextHAlignment alignment)
 {
-    if (alignment != _alignment)
+    _renderLabel->setHorizontalAlignment(alignment);
-    {
+    _contentDirty = true;
-        _alignment = alignment;
-        
-        // Force update
-        if (_string.size() > 0)
-        {
-            this->updateTexture();
-        }
-    }
 }
 
 TextVAlignment LabelTTF::getVerticalAlignment() const
 {
-    return _vAlignment;
+    return _renderLabel->getVerticalAlignment();
 }
 
 void LabelTTF::setVerticalAlignment(TextVAlignment verticalAlignment)
 {
-    if (verticalAlignment != _vAlignment)
+    _renderLabel->setVerticalAlignment(verticalAlignment);
-    {
+    _contentDirty = true;
-        _vAlignment = verticalAlignment;
-        
-        // Force update
-        if (_string.size() > 0)
-        {
-            this->updateTexture();
-        }
-    }
 }
 
 const Size& LabelTTF::getDimensions() const
 {
-    return _dimensions;
+    return _renderLabel->getDimensions();
 }
 
 void LabelTTF::setDimensions(const Size &dim)
 {
-    // XXX: float comparison... very unreliable
+    _renderLabel->setDimensions(dim.width,dim.height);
-    if (dim.width != _dimensions.width || dim.height != _dimensions.height)
+    _contentDirty = true;
-    {
-        _dimensions = dim;
-        
-        // Force update
-        if (_string.size() > 0)
-        {
-            this->updateTexture();
-        }
-    }
 }
 
 float LabelTTF::getFontSize() const
 {
-    return _fontSize;
+    return _renderLabel->getFontSize();
 }
 
 void LabelTTF::setFontSize(float fontSize)
 {
-    // XXX: float comparison... very unreliable
+    _renderLabel->setFontSize(fontSize);
-    if (_fontSize != fontSize)
+    _contentDirty = true;
-    {
-        _fontSize = fontSize;
-        
-        // Force update
-        if (_string.size() > 0)
-        {
-            this->updateTexture();
-        }
-    }
 }
 
 const std::string& LabelTTF::getFontName() const
 {
-    return _fontName;
+    return _renderLabel->getFontName();
 }
 
 void LabelTTF::setFontName(const std::string& fontName)
 {
-    if (_fontName.compare(fontName))
+    _renderLabel->setFontName(fontName);
-    {
+    _contentDirty = true;
-        _fontName = fontName;
-        
-        // Force update
-        if (_string.size() > 0)
-        {
-            this->updateTexture();
-        }
-    }
-}
-
-// Helper
-bool LabelTTF::updateTexture()
-{
-    Texture2D *tex;
-    tex = new Texture2D();
-    
-    if (!tex)
-        return false;
-    
-#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID) || (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
-    
-        FontDefinition texDef = _prepareTextDefinition(true);
-        tex->initWithString( _string.c_str(), texDef );
-    
-#else
-    
-        tex->initWithString( _string.c_str(),
-                            _fontName.c_str(),
-                            _fontSize * CC_CONTENT_SCALE_FACTOR(),
-                            CC_SIZE_POINTS_TO_PIXELS(_dimensions),
-                            _alignment,
-                            _vAlignment);
-    
-#endif
-    
-    // set the texture
-    this->setTexture(tex);
-    // release it
-    tex->release();
-    
-    // set the size in the sprite
-    Rect rect =Rect::ZERO;
-    rect.size   = _texture->getContentSize();
-    this->setTextureRect(rect);
-    
-    //ok
-    return true;
 }
 
 void LabelTTF::enableShadow(const Size &shadowOffset, float shadowOpacity, float shadowBlur, bool updateTexture)
 {
-    #if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID) || (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
+    _renderLabel->enableShadow(Color3B::BLACK,shadowOffset,shadowOpacity,shadowBlur);
-    
+    _contentDirty = true;
-        bool valueChanged = false;
-        
-        if (false == _shadowEnabled)
-        {
-            _shadowEnabled = true;
-            valueChanged    = true;
-        }
-        
-        if ( (_shadowOffset.width != shadowOffset.width) || (_shadowOffset.height!=shadowOffset.height) )
-        {
-            _shadowOffset.width = shadowOffset.width;
-            _shadowOffset.height = shadowOffset.height;
-            
-            valueChanged = true;
-        }
-        
-        if (_shadowOpacity != shadowOpacity )
-        {
-            _shadowOpacity = shadowOpacity;
-            valueChanged = true;
-        }
-
-        if (_shadowBlur != shadowBlur)
-        {
-            _shadowBlur = shadowBlur;
-            valueChanged = true;
-        }
-        
-        if ( valueChanged && updateTexture )
-        {
-            this->updateTexture();
-        }
-    
-#else
-        CCLOGERROR("Currently only supported on iOS and Android!");
-#endif
-    
 }
 
 void LabelTTF::disableShadow(bool updateTexture)
 {
-#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID) || (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
+    _renderLabel->disableEffect();
-    
+    this->setContentSize(_renderLabel->getContentSize());
-        if (_shadowEnabled)
-        {
-            _shadowEnabled = false;
-    
-            if (updateTexture)
-                this->updateTexture();
-        }
-    
-#else
-        CCLOGERROR("Currently only supported on iOS and Android!");
-#endif
 }
 
 void LabelTTF::enableStroke(const Color3B &strokeColor, float strokeSize, bool updateTexture)
 {
-#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID) || (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
+    _renderLabel->enableOutline(Color4B(strokeColor),strokeSize);
-    
+    _contentDirty = true;
-        bool valueChanged = false;
-        
-        if(_strokeEnabled == false)
-        {
-            _strokeEnabled = true;
-            valueChanged = true;
-        }
-        
-        if ( (_strokeColor.r != strokeColor.r) || (_strokeColor.g != strokeColor.g) || (_strokeColor.b != strokeColor.b) )
-        {
-            _strokeColor = strokeColor;
-            valueChanged = true;
-        }
-        
-        if (_strokeSize!=strokeSize)
-        {
-            _strokeSize = strokeSize;
-            valueChanged = true;
-        }
-        
-        if ( valueChanged && updateTexture )
-        {
-            this->updateTexture();
-        }
-    
-#else
-        CCLOGERROR("Currently only supported on iOS and Android!");
-#endif
-    
 }
 
 void LabelTTF::disableStroke(bool updateTexture)
 {
-#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID) || (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
+    _renderLabel->disableEffect();
-    
+    this->setContentSize(_renderLabel->getContentSize());
-        if (_strokeEnabled)
-        {
-            _strokeEnabled = false;
-            
-            if (updateTexture)
-                this->updateTexture();
-        }
-    
-#else
-        CCLOGERROR("Currently only supported on iOS and Android!");
-#endif
-    
 }
 
 void LabelTTF::setFontFillColor(const Color3B &tintColor, bool updateTexture)
 {
-#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID) || (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
+    _renderLabel->setColor(tintColor);
-        if (_textFillColor.r != tintColor.r || _textFillColor.g != tintColor.g || _textFillColor.b != tintColor.b)
+    this->setContentSize(_renderLabel->getContentSize());
-        {
-            _textFillColor = tintColor;
-            
-            if (updateTexture)
-                this->updateTexture();
-        }
-#else
-        CCLOGERROR("Currently only supported on iOS and Android!");
-#endif
 }
 
 void LabelTTF::setTextDefinition(const FontDefinition& theDefinition)
 {
-    _updateWithTextDefinition(theDefinition, true);
+    _renderLabel->setFontDefinition(theDefinition);
+    _contentDirty = true;
 }
 
-FontDefinition LabelTTF::getTextDefinition()
+const FontDefinition& LabelTTF::getTextDefinition() const
 {
-    return _prepareTextDefinition(false);
+    return _renderLabel->getFontDefinition();
 }
 
-void LabelTTF::_updateWithTextDefinition(const FontDefinition& textDefinition, bool mustUpdateTexture)
+void LabelTTF::setBlendFunc(const BlendFunc &blendFunc)
 {
-    _dimensions = Size(textDefinition._dimensions.width, textDefinition._dimensions.height);
+    _renderLabel->setBlendFunc(blendFunc);
-    _alignment = textDefinition._alignment;
-    _vAlignment = textDefinition._vertAlignment;
-    
-    _fontName = textDefinition._fontName;
-    _fontSize = textDefinition._fontSize;
-    
-    
-    // shadow
-    if ( textDefinition._shadow._shadowEnabled )
-    {
-        enableShadow(textDefinition._shadow._shadowOffset, textDefinition._shadow._shadowOpacity, textDefinition._shadow._shadowBlur, false);
-    }
-    
-    // stroke
-    if ( textDefinition._stroke._strokeEnabled )
-    {
-        enableStroke(textDefinition._stroke._strokeColor, textDefinition._stroke._strokeSize, false);
-    }
-    
-    // fill color
-    setFontFillColor(textDefinition._fontFillColor, false);
-    
-    if (mustUpdateTexture)
-        updateTexture();
 }
 
-FontDefinition LabelTTF::_prepareTextDefinition(bool adjustForResolution)
+const BlendFunc &LabelTTF::getBlendFunc() const
 {
-    FontDefinition texDef;
+    return _renderLabel->getBlendFunc();
-    
+}
-    if (adjustForResolution)
+
-        texDef._fontSize = _fontSize * CC_CONTENT_SCALE_FACTOR();
+void LabelTTF::setFlippedX(bool flippedX)
-    else
+{
-        texDef._fontSize = _fontSize;
+    if (flippedX)
-    
-    texDef._fontName = _fontName;
-    texDef._alignment = _alignment;
-    texDef._vertAlignment = _vAlignment;
-    
-    
-    if (adjustForResolution)
-        texDef._dimensions = CC_SIZE_POINTS_TO_PIXELS(_dimensions);
-    else
-        texDef._dimensions = _dimensions;
-    
-    
-    // stroke
-    if ( _strokeEnabled )
     {
-        texDef._stroke._strokeEnabled = true;
+        _renderLabel->setScaleX(-1.0f);
-        texDef._stroke._strokeColor   = _strokeColor;
+    } 
-        
-        if (adjustForResolution)
-            texDef._stroke._strokeSize = _strokeSize * CC_CONTENT_SCALE_FACTOR();
-        else
-            texDef._stroke._strokeSize = _strokeSize;
-    }
     else
     {
-        texDef._stroke._strokeEnabled = false;
+        _renderLabel->setScaleX(1.0f);
     }
-    
+}
-    // shadow
+
-    if ( _shadowEnabled )
+void LabelTTF::setFlippedY(bool flippedY)
+{
+    if (flippedY)
     {
-        texDef._shadow._shadowEnabled = true;
+        _renderLabel->setScaleY(-1.0f);
-        texDef._shadow._shadowBlur = _shadowBlur;
+    } 
-        texDef._shadow._shadowOpacity = _shadowOpacity;
-        
-        if (adjustForResolution)
-            texDef._shadow._shadowOffset = CC_SIZE_POINTS_TO_PIXELS(_shadowOffset);
-        else
-            texDef._shadow._shadowOffset = _shadowOffset;
-    }
     else
     {
-        texDef._shadow._shadowEnabled = false;
+        _renderLabel->setScaleY(1.0f);
     }
-    
+}
-    // text tint
+
-    texDef._fontFillColor = _textFillColor;
+void LabelTTF::visit(Renderer *renderer, const kmMat4 &parentTransform, bool parentTransformUpdated)
-    
+{
-    return texDef;
+    if (_contentDirty)
+    {
+        this->setContentSize(_renderLabel->getContentSize());
+        _contentDirty = false;
+    }
+    Node::visit(renderer,parentTransform,parentTransformUpdated);
+}
+
+const Size& LabelTTF::getContentSize() const
+{
+    const_cast<LabelTTF*>(this)->setContentSize(_renderLabel->getContentSize());
+    return _contentSize;
 }
 
 NS_CC_END

cocos/2d/CCLabelTTF.h

@@ -26,11 +26,12 @@ THE SOFTWARE.
 #ifndef __CCLABELTTF_H__
 #define __CCLABELTTF_H__
 
-#include "CCTexture2D.h"
+#include "CCNode.h"
-#include "CCSprite.h"
 
 NS_CC_BEGIN
 
+class Label;
+
 /**
  * @addtogroup GUI
  * @{
@@ -55,7 +56,7 @@ NS_CC_BEGIN
  * @endcode
  *
  */
-class CC_DLL LabelTTF : public Sprite, public LabelProtocol
+class CC_DLL LabelTTF : public Node, public LabelProtocol, public BlendProtocol
 {
 public:
     /**
@@ -68,39 +69,21 @@ public:
      */
     virtual ~LabelTTF();
 
-    /** creates a LabelTTF with a font name and font size in points
-     @since v2.0.1
-     */
-    static LabelTTF * create(const std::string& string, const std::string& fontName, float fontSize);
-    
-    /** creates a LabelTTF from a fontname, horizontal alignment, dimension in points,  and font size in points.
-     @since v2.0.1
-     */
-    static LabelTTF * create(const std::string& string, const std::string& fontName, float fontSize,
-                             const Size& dimensions, TextHAlignment hAlignment);
-  
     /** creates a Label from a fontname, alignment, dimension in points and font size in points
      @since v2.0.1
      */
     static LabelTTF * create(const std::string& string, const std::string& fontName, float fontSize,
-                             const Size& dimensions, TextHAlignment hAlignment,
+                             const Size& dimensions = Size::ZERO, TextHAlignment hAlignment = TextHAlignment::CENTER,
-                             TextVAlignment vAlignment);
+                             TextVAlignment vAlignment = TextVAlignment::TOP);
     
     
     /** Create a lable with string and a font definition*/
     static LabelTTF * createWithFontDefinition(const std::string& string, FontDefinition &textDefinition);
     
-    /** initializes the LabelTTF with a font name and font size */
-    bool initWithString(const std::string& string, const std::string& fontName, float fontSize);
-    
     /** initializes the LabelTTF with a font name, alignment, dimension and font size */
     bool initWithString(const std::string& string, const std::string& fontName, float fontSize,
-                        const Size& dimensions, TextHAlignment hAlignment);
+                        const Size& dimensions = Size::ZERO, TextHAlignment hAlignment = TextHAlignment::LEFT, 
-
+                        TextVAlignment vAlignment = TextVAlignment::TOP);
-    /** initializes the LabelTTF with a font name, alignment, dimension and font size */
-    bool initWithString(const std::string& string, const std::string& fontName, float fontSize,
-                        const Size& dimensions, TextHAlignment hAlignment, 
-                        TextVAlignment vAlignment);
     
     /** initializes the LabelTTF with a font name, alignment, dimension and font size */
     bool initWithStringAndTextDefinition(const std::string& string, FontDefinition &textDefinition);
@@ -109,7 +92,7 @@ public:
     void setTextDefinition(const FontDefinition& theDefinition);
     
     /** get the text definition used by this label */
-    FontDefinition getTextDefinition();
+    const FontDefinition& getTextDefinition() const;
     
     
     
@@ -128,11 +111,6 @@ public:
     /** set text tinting */
     void setFontFillColor(const Color3B &tintColor, bool mustUpdateTexture = true);
 
-    
-    
-    /** initializes the LabelTTF */
-    bool init();
-
     /** Creates an label.
      */
     static LabelTTF * create();
@@ -141,7 +119,7 @@ public:
     * @warning Changing the string is as expensive as creating a new LabelTTF. To obtain better performance use LabelAtlas
     */
     virtual void setString(const std::string &label) override;
-    virtual const std::string& getString(void) const override;
+    virtual const std::string& getString(void) const override ;
     
     TextHAlignment getHorizontalAlignment() const;
     void setHorizontalAlignment(TextHAlignment alignment);
@@ -158,46 +136,23 @@ public:
     const std::string& getFontName() const;
     void setFontName(const std::string& fontName);
 
+    virtual void setBlendFunc(const BlendFunc &blendFunc) override;
+
+    virtual const BlendFunc &getBlendFunc() const override;
+
+    virtual void setFlippedX(bool flippedX);
+    virtual void setFlippedY(bool flippedY);
+
     /**
      * @js NA
      * @lua NA
      */
     virtual std::string getDescription() const override;
-
+    virtual void visit(Renderer *renderer, const kmMat4 &parentTransform, bool parentTransformUpdated) override;
+    virtual const Size& getContentSize() const override;
 protected:
-    bool updateTexture();
+    Label*    _renderLabel;
-
+    bool _contentDirty;
-    /** set the text definition for this label */
-    void _updateWithTextDefinition(const FontDefinition& textDefinition, bool mustUpdateTexture = true);
-    FontDefinition    _prepareTextDefinition(bool adjustForResolution = false);
-    
-    /** Dimensions of the label in Points */
-    Size _dimensions;
-    /** The alignment of the label */
-    TextHAlignment         _alignment;
-    /** The vertical alignment of the label */
-    TextVAlignment _vAlignment;
-    /** Font name used in the label */
-    std::string _fontName;
-    /** Font size of the label */
-    float _fontSize;
-    /** label's string */
-    std::string _string;
-    
-    /** font shadow */
-    bool    _shadowEnabled;
-    Size    _shadowOffset;
-    float   _shadowOpacity;
-    float   _shadowBlur;
-    
-    
-    /** font stroke */
-    bool        _strokeEnabled;
-    Color3B     _strokeColor;
-    float       _strokeSize;
-        
-    /** font tint */
-    Color3B   _textFillColor;
 };