axmol/core/base/CCEventMouse.h

/****************************************************************************
 Copyright (c) 2013-2016 Chukong Technologies Inc.
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

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#ifndef __cocos2d_libs__CCMouseEvent__
#define __cocos2d_libs__CCMouseEvent__

#include "base/CCEvent.h"
#include "math/CCMath.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__) */