axmol/cocos/ui/UILayoutComponent.h

/****************************************************************************
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
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****************************************************************************/

#ifndef __cocos2d_libs__LayoutComponent__
#define __cocos2d_libs__LayoutComponent__
#include "2d/CCComponent.h"
#include "ui/GUIExport.h"

NS_CC_BEGIN

    namespace ui {
        class CC_GUI_DLL LayoutComponent : public Component
        {
        public:
            LayoutComponent();
            ~LayoutComponent();
            virtual bool init()override;
            CREATE_FUNC(LayoutComponent);
            /**
            * When a node has a ReferencePositoin with value equals LEFT_BOTTOM,
            * it will treat the left bottom corner of its parent as the origin(0,0) when positioning itself
            * which is the same as cocos2d-x does. But you can change it by assigning a
            * different ReferencePosition.
            * For example: If you use ReferencePosition with value equals RIGHT_TOP,
            * then it will treat the right top corner of its parent as the origin(0,0) when positioning itself.
            */
            enum class ReferencePoint
            {
                BOTTOM_LEFT,
                TOP_LEFT,
                BOTTOM_RIGHT,
                TOP_RIGHT
            };

            bool isUsingPercentPosition();
            void setUsingPercentPosition(bool flag);

            const Vec2& getPercentPosition();
            void setPercentPosition(const Vec2& percent);

            const Vec2& getRelativePosition();
            void setRelativePosition(const Vec2& position);

            void setReferencePoint(ReferencePoint point);
            ReferencePoint getReferencePoint();

            const Vec2& getOwnerPosition()const;
            void setOwnerPosition(const Vec2& point); 

            Vec2 getOwnerContentSize()const;
            void setOwnerContentSize(const Vec2& size);

            const Vec2& getPercentContentSize()const;
            void setPercentContentSize(const Vec2& percent);

            bool isUsingPercentContentSize();
            void setUsingPercentContentSize(bool flag);

            void setActiveEnable(bool enable);
        private:
            Vec2 converPointWithReferencePointAndSize(const Vec2& point,const Size& size);
        private:

            Vec2 _percentContentSize;
            bool _usingPercentContentSize;

            ReferencePoint _referencePoint;
            Vec2 _relativePosition;
            Vec2 _percentPosition;
            bool _usingPercentPosition;
            bool _actived;
        };
}

NS_CC_END
#endif /* defined(__cocos2d_libs__LayoutComponent__) */