RedCore/cocos2d/cocos/base/CCEventMouse.h

/****************************************************************************
 Copyright (c) 2013-2017 Chukong Technologies Inc.

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#ifndef __cocos2d_libs__CCMouseEvent__
#define __cocos2d_libs__CCMouseEvent__

#include "base/CCEvent.h"
#include "math/CCGeometry.h"

/**
 * @addtogroup base
 * @{
 */

NS_CC_BEGIN

/** @class EventMouse
 * @brief The mouse event.
 */
class CC_DLL EventMouse : public Event
{
public:
    /**
    * MouseEventType Different types of MouseEvent.
    * @js NA
    */
    enum class MouseEventType
    {
        MOUSE_NONE,
        MOUSE_DOWN,
        MOUSE_UP,
        MOUSE_MOVE,
        MOUSE_SCROLL,
    };

    enum class MouseButton
    {
      BUTTON_UNSET   = -1,
      BUTTON_LEFT    =  0,
      BUTTON_RIGHT   =  1,
      BUTTON_MIDDLE  =  2,
      BUTTON_4       =  3,
      BUTTON_5       =  4,
      BUTTON_6       =  5,
      BUTTON_7       =  6,
      BUTTON_8       =  7
    };


    /** Constructor.
     *
     * @param mouseEventCode A given mouse event type.
     * @js ctor
     */
    EventMouse(MouseEventType mouseEventCode);

    /** Set mouse scroll data.
     * 
     * @param scrollX The scroll data of x axis.
     * @param scrollY The scroll data of y axis.
     */
    void setScrollData(float scrollX, float scrollY) { _scrollX = scrollX; _scrollY = scrollY; }
    /** Get mouse scroll data of x axis.
     * 
     * @return The scroll data of x axis.
     */
    float getScrollX() const { return _scrollX; }
    /** Get mouse scroll data of y axis.
     *
     * @return The scroll data of y axis.
     */
    float getScrollY() const { return _scrollY; }

    /** Set the cursor position.
     *
     * @param x The x coordinate of cursor position.
     * @param y The y coordinate of cursor position.
     * @js setLocation
     */
    void setCursorPosition(float x, float y) { 
        _x = x;
        _y = y;
        _prevPoint = _point;
        _point.x = x;
        _point.y = y;
        if (!_startPointCaptured)
        {
            _startPoint = _point;
            _startPointCaptured = true;
        }
    }

    /** Set mouse button.
     * 
     * @param button a given mouse button.
     * @js setButton
     */
    void setMouseButton(MouseButton button) { _mouseButton = button; }
    /** Get mouse button.
     *
     * @return The mouse button.
     * @js getButton
     */
    MouseButton getMouseButton() const { return _mouseButton; }
    /** Get the cursor position of x axis.
     *
     * @return The x coordinate of cursor position.
     * @js getLocationX
     */
    float getCursorX() const { return _x; }
    /** Get the cursor position of y axis.
     *
     * @return The y coordinate of cursor position.
     * @js getLocationY
     */
    float getCursorY() const { return _y; }

    /** Returns the current touch location in OpenGL coordinates.
     *
     * @return The current touch location in OpenGL coordinates.
     */
    Vec2 getLocation() const;
    /** Returns the previous touch location in OpenGL coordinates.
     *
     * @return The previous touch location in OpenGL coordinates.
     * @js NA
     */
    Vec2 getPreviousLocation() const;
    /** Returns the start touch location in OpenGL coordinates.
     *
     * @return The start touch location in OpenGL coordinates.
     * @js NA
     */
    Vec2 getStartLocation() const;
    /** Returns the delta of 2 current touches locations in screen coordinates.
     *
     * @return The delta of 2 current touches locations in screen coordinates.
     */
    Vec2 getDelta() const;
    /** Returns the current touch location in screen coordinates.
     *
     * @return The current touch location in screen coordinates.
     */
    Vec2 getLocationInView() const;
    /** Returns the previous touch location in screen coordinates.
     *
     * @return The previous touch location in screen coordinates.
     * @js NA
     */
    Vec2 getPreviousLocationInView() const;
    /** Returns the start touch location in screen coordinates.
     *
     * @return The start touch location in screen coordinates.
     * @js NA
     */
    Vec2 getStartLocationInView() const;


private:
    MouseEventType _mouseEventType;
    MouseButton _mouseButton;
    float _x;
    float _y;
    float _scrollX;
    float _scrollY;

    bool _startPointCaptured;
    Vec2 _startPoint;
    Vec2 _point;
    Vec2 _prevPoint;

    friend class EventListenerMouse;
};

NS_CC_END

// end of base group
/// @}

#endif /* defined(__cocos2d_libs__CCMouseEvent__) */