axmol/cocos/ui/UIAbstractCheckButton.h

/****************************************************************************
Copyright (c) 2013-2014 Chukong Technologies Inc.

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#ifndef __UIABSTRACTCHECKBUTTON_H__
#define __UIABSTRACTCHECKBUTTON_H__

#include "ui/UIWidget.h"
#include "ui/GUIExport.h"

/**
 * @addtogroup ui
 * @{
 */
NS_CC_BEGIN
class Sprite;

namespace ui {
    
/**
 *  AbstractCheckButton is a specific type of two-states button that can be either checked or unchecked.
 */
class CC_GUI_DLL AbstractCheckButton : public Widget
{
    
public:
    /**
     * Load all textures for initializing a check button.
     *
     * @param background    The background image name.
     * @param backgroundSelected    The background selected image name.
     * @param cross    The cross image name.
     * @param backgroundDisabled    The background disabled state texture.
     * @param frontCrossDisabled    The front cross disabled state image name.
     * @param texType    @see `Widget::TextureResType`
     */
    void loadTextures(const std::string& background,
                      const std::string& backgroundSelected,
                      const std::string& cross,
                      const std::string& backgroundDisabled,
                      const std::string& frontCrossDisabled,
                      TextureResType texType = TextureResType::LOCAL);
    
    /**
     * Load background texture for check button.
     *
     * @param backGround   The background image name.
     * @param type    @see `Widget::TextureResType`
     */
    void loadTextureBackGround(const std::string& backGround,TextureResType type = TextureResType::LOCAL);
    
    /**
     * Load background selected state texture for check button.
     *
     * @param backGroundSelected    The background selected state image name.
     * @param texType    @see `Widget::TextureResType`
     */
    void loadTextureBackGroundSelected(const std::string& backGroundSelected,TextureResType texType = TextureResType::LOCAL);
    
    /**
     * Load cross texture for check button.
     *
     * @param crossTextureName    The cross texture name.
     * @param texType    @see `Widget::TextureResType`
     */
    void loadTextureFrontCross(const std::string& crossTextureName,TextureResType texType = TextureResType::LOCAL);
    
    /**
     * Load background disabled state texture for checkbox.
     *
     * @param backGroundDisabled    The background disabled state texture name.
     *
     * @param texType    @see `Widget::TextureResType`
     */
    void loadTextureBackGroundDisabled(const std::string& backGroundDisabled,TextureResType texType = TextureResType::LOCAL);
    
    /**
     * Load frontcross disabled texture for checkbox.
     *
     * @param frontCrossDisabled    The front cross disabled state texture name.
     * @param texType    @see `Widget::TextureResType`
     */
    void loadTextureFrontCrossDisabled(const std::string& frontCrossDisabled,TextureResType texType = TextureResType::LOCAL);
    
    /**
     * Query whether CheckBox is selected or not.
     *@return true means "selected", false otherwise.
     */
    bool isSelected()const;
    
    /**
     * Change CheckBox state.
     * Set to true will cause the CheckBox's state to "selected", false otherwise.
     *@param selected Set to true will change CheckBox to selected state, false otherwise.
     */
    void setSelected(bool selected);
    
    //override functions
    virtual Size getVirtualRendererSize() const override;
    virtual Node* getVirtualRenderer() override;
    
    /** When user pressed the CheckBox, the button will zoom to a scale.
     * The final scale of the CheckBox  equals (CheckBox original scale + _zoomScale)
     * @since v3.3
     */
    void setZoomScale(float scale);
    /**
     * @brief Return a zoom scale
     * @return A zoom scale of Checkbox.
     * @since v3.3
     */
    float getZoomScale()const;
    
    /**
     * @brief Return the sprite instance of background
     * @return the sprite instance of background.
     */
    Sprite* getRendererBackground() const { return _backGroundBoxRenderer; }
    
    /**
     * @brief Return the sprite instance of background when selected
     * @return the sprite instance of background when selected
     */
    Sprite* getRendererBackgroundSelected() const { return _backGroundSelectedBoxRenderer; }
    
    /**
     * @brief Return the sprite instance of front cross
     * @return the sprite instance of front cross
     */
    Sprite* getRendererFrontCross() const { return _frontCrossRenderer; }
    
    /**
     * @brief Return the sprite instance of background when disabled
     * @return the sprite instance of background when disabled
     */
    Sprite* getRendererBackgroundDisabled() const { return _backGroundBoxDisabledRenderer; }
    
    /**
     * @brief Return the sprite instance of front cross when disabled
     * @return the sprite instance of front cross when disabled
     */
    Sprite* getRendererFrontCrossDisabled() const { return _frontCrossDisabledRenderer; }
    
CC_CONSTRUCTOR_ACCESS:
    virtual bool init() override;
    virtual bool init(const std::string& backGround,
                      const std::string& backGroundSeleted,
                      const std::string& cross,
                      const std::string& backGroundDisabled,
                      const std::string& frontCrossDisabled,
                      TextureResType texType = TextureResType::LOCAL);
    
protected:
    /**
     * Default constructor.
     */
    AbstractCheckButton();
    
    /**
     * Default destructor.
     *
     * @lua NA
     */
    virtual ~AbstractCheckButton();
    
    virtual void initRenderer() override;
    virtual void onPressStateChangedToNormal() override;
    virtual void onPressStateChangedToPressed() override;
    virtual void onPressStateChangedToDisabled() override;
    
    void setupBackgroundTexture();
    void loadTextureBackGround(SpriteFrame* spriteFrame);
    void setupBackgroundSelectedTexture();
    void loadTextureBackGroundSelected(SpriteFrame* spriteFrame);
    void setupFrontCrossTexture();
    void loadTextureFrontCross(SpriteFrame* spriteframe);
    void setupBackgroundDisable();
    void loadTextureBackGroundDisabled(SpriteFrame* spriteframe);
    void setupFrontCrossDisableTexture();
    void loadTextureFrontCrossDisabled(SpriteFrame* spriteframe);
    
    virtual void dispatchSelectChangedEvent(bool selected) = 0;
    
    virtual void onSizeChanged() override;
    
    void backGroundTextureScaleChangedWithSize();
    void backGroundSelectedTextureScaleChangedWithSize();
    void frontCrossTextureScaleChangedWithSize();
    void backGroundDisabledTextureScaleChangedWithSize();
    void frontCrossDisabledTextureScaleChangedWithSize();
    
    virtual void copySpecialProperties(Widget* model) override;
    virtual void adaptRenderers() override;
protected:
    Sprite* _backGroundBoxRenderer;
    Sprite* _backGroundSelectedBoxRenderer;
    Sprite* _frontCrossRenderer;
    Sprite* _backGroundBoxDisabledRenderer;
    Sprite* _frontCrossDisabledRenderer;
    bool _isSelected;
    
    bool _isBackgroundSelectedTextureLoaded;
    bool _isBackgroundDisabledTextureLoaded;
    bool _isFrontCrossDisabledTextureLoaded;
    TextureResType _backGroundTexType;
    TextureResType _backGroundSelectedTexType;
    TextureResType _frontCrossTexType;
    TextureResType _backGroundDisabledTexType;
    TextureResType _frontCrossDisabledTexType;
    
    float _zoomScale;
    float _backgroundTextureScaleX;
    float _backgroundTextureScaleY;
    
    bool _backGroundBoxRendererAdaptDirty;
    bool _backGroundSelectedBoxRendererAdaptDirty;
    bool _frontCrossRendererAdaptDirty;
    bool _backGroundBoxDisabledRendererAdaptDirty;
    bool _frontCrossDisabledRendererAdaptDirty;
};
    
}

NS_CC_END
// end of ui group
/// @}

#endif /* defined(__UIABSTRACTCHECKBUTTON_H__) */