/****************************************************************************
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 __UICHECKBOX_H__
#define __UICHECKBOX_H__

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

NS_CC_BEGIN

class Sprite;

namespace ui {

typedef enum
{
    CHECKBOX_STATE_EVENT_SELECTED,
    CHECKBOX_STATE_EVENT_UNSELECTED
}CheckBoxEventType;

typedef void (Ref::*SEL_SelectedStateEvent)(Ref*,CheckBoxEventType);
#define checkboxselectedeventselector(_SELECTOR) (SEL_SelectedStateEvent)(&_SELECTOR)

/**
*   @js NA
*   @lua NA
*/
class CC_GUI_DLL CheckBox : public Widget
{
    
    DECLARE_CLASS_GUI_INFO
    
public:
    enum class EventType
    {
        SELECTED,
        UNSELECTED
    };
    
    typedef std::function<void(Ref*,CheckBox::EventType)> ccCheckBoxCallback;
    
    /**
     * Default constructor
     */
    CheckBox();

    /**
     * Default destructor
     */
    virtual ~CheckBox();

    /**
     * Allocates and initializes.
     */
    static CheckBox* create();
    
    /**
     * create an checkbox
     *
     * @param backGround    backGround texture.
     *
     * @param backGroundSelected    backGround selected state texture.
     *
     * @param cross    cross texture.
     *
     * @param frontCrossDisabled    cross dark state texture.
     *
     * @param texType    @see TextureResType
     */
    static CheckBox* create(const std::string& backGround,
                            const std::string& backGroundSeleted,
                            const std::string& cross,
                            const std::string& backGroundDisabled,
                            const std::string& frontCrossDisabled,
                            TextureResType texType = TextureResType::LOCAL);
    
    /**
     * use less resource to create a CheckBox
     */
    static CheckBox* create(const std::string& backGround,
                            const std::string& cross,
                            TextureResType texType = TextureResType::LOCAL);

    /**
     * Load textures for checkbox.
     *
     * @param backGround    backGround texture.
     *
     * @param backGroundSelected    backGround selected state texture.
     *
     * @param cross    cross texture.
     *
     * @param frontCrossDisabled    cross dark state texture.
     *
     * @param texType    @see 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 checkbox.
     *
     * @param backGround    backGround texture.
     *
     * @param texType    @see TextureResType
     */
    void loadTextureBackGround(const std::string& backGround,TextureResType type = TextureResType::LOCAL);

    /**
     * Load backGroundSelected texture for checkbox.
     *
     * @param backGroundSelected     backGround selected state texture.
     *
     * @param texType    @see TextureResType
     */
    void loadTextureBackGroundSelected(const std::string& backGroundSelected,TextureResType texType = TextureResType::LOCAL);

    /**
     * Load cross texture for checkbox.
     *
     * @param cross    cross texture.
     *
     * @param texType    @see TextureResType
     */
    void loadTextureFrontCross(const std::string&,TextureResType texType = TextureResType::LOCAL);

    /**
     * Load backGroundDisabled texture for checkbox.
     *
     * @param backGroundDisabled    backGroundDisabled texture.
     *
     * @param texType    @see TextureResType
     */
    void loadTextureBackGroundDisabled(const std::string& backGroundDisabled,TextureResType texType = TextureResType::LOCAL);

    /**
     * Load frontCrossDisabled texture for checkbox.
     *
     * @param frontCrossDisabled    frontCrossDisabled texture.
     *
     * @param texType    @see TextureResType
     */
    void loadTextureFrontCrossDisabled(const std::string& frontCrossDisabled,TextureResType texType = TextureResType::LOCAL);

    /**
     * Sets selcted state for checkbox.
     *
     * @param selected    true that checkbox is selected, false otherwise.
     */
    CC_DEPRECATED_ATTRIBUTE void setSelectedState(bool selected){this->setSelected(selected);}

    /**
     * Gets selcted state of checkbox.
     *
     * @return selected    true that checkbox is selected, false otherwise.
     */
    CC_DEPRECATED_ATTRIBUTE bool getSelectedState()const{return this->isSelected();}
    
    bool isSelected()const;
    void setSelected(bool selected);

    //add a call back function would called when checkbox is selected or unselected.
    CC_DEPRECATED_ATTRIBUTE void addEventListenerCheckBox(Ref* target,SEL_SelectedStateEvent selector);
    void addEventListener(const ccCheckBoxCallback& callback);


    //override "getVirtualRendererSize" method of widget.
    virtual Size getVirtualRendererSize() const override;

    //override "getVirtualRenderer" method of widget.
    virtual Node* getVirtualRenderer() override;

    /**
     * Returns the "class name" of widget.
     */
    virtual std::string getDescription() const override;
    
    /** When user pressed the button, the button will zoom to a scale.
     * The final scale of the button  equals (button original scale + _zoomScale)
     * @since v3.3
     */
    void setZoomScale(float scale);
    /**
     * @brief Return a zoom scale
     * @since v3.3
     */
    float getZoomScale()const;
    
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:
    virtual void initRenderer() override;
    virtual void onPressStateChangedToNormal() override;
    virtual void onPressStateChangedToPressed() override;
    virtual void onPressStateChangedToDisabled() override;
    
    void selectedEvent();
    void unSelectedEvent();
    
    virtual void releaseUpEvent() override;
    
    virtual void onSizeChanged() override;
    
    void backGroundTextureScaleChangedWithSize();
    void backGroundSelectedTextureScaleChangedWithSize();
    void frontCrossTextureScaleChangedWithSize();
    void backGroundDisabledTextureScaleChangedWithSize();
    void frontCrossDisabledTextureScaleChangedWithSize();
    
    virtual Widget* createCloneInstance() override;
    virtual void copySpecialProperties(Widget* model) override;
    virtual void adaptRenderers() override;
protected:
    Sprite* _backGroundBoxRenderer;
    Sprite* _backGroundSelectedBoxRenderer;
    Sprite* _frontCrossRenderer;
    Sprite* _backGroundBoxDisabledRenderer;
    Sprite* _frontCrossDisabledRenderer;
    bool _isSelected;
    //if you use the old event callback, it will retain the _checkBoxEventListener
    Ref*       _checkBoxEventListener;
    
#if defined(__GNUC__) && ((__GNUC__ >= 4) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1)))
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#elif _MSC_VER >= 1400 //vs 2005 or higher
#pragma warning (push)
#pragma warning (disable: 4996)
#endif
    SEL_SelectedStateEvent    _checkBoxEventSelector;
#if defined(__GNUC__) && ((__GNUC__ >= 4) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1)))
#pragma GCC diagnostic warning "-Wdeprecated-declarations"
#elif _MSC_VER >= 1400 //vs 2005 or higher
#pragma warning (pop)
#endif
    
    ccCheckBoxCallback _checkBoxEventCallback;

    TextureResType _backGroundTexType;
    TextureResType _backGroundSelectedTexType;
    TextureResType _frontCrossTexType;
    TextureResType _backGroundDisabledTexType;
    TextureResType _frontCrossDisabledTexType;

    float _zoomScale;
    float _backgroundTextureScaleX;
    float _backgroundTextureScaleY;
    std::string _backGroundFileName;
    std::string _backGroundSelectedFileName;
    std::string _frontCrossFileName;
    std::string _backGroundDisabledFileName;
    std::string _frontCrossDisabledFileName;
    
    bool _backGroundBoxRendererAdaptDirty;
    bool _backGroundSelectedBoxRendererAdaptDirty;
    bool _frontCrossRendererAdaptDirty;
    bool _backGroundBoxDisabledRendererAdaptDirty;
    bool _frontCrossDisabledRendererAdaptDirty;
};

}

NS_CC_END

#endif /* defined(__CocoGUI__CheckBox__) */