wx3.0-headers 3.0.4+dfsg-3 / usr / include / wx-3.0 / wx / mousestate.h

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///////////////////////////////////////////////////////////////////////////////
// Name:        wx/mousestate.h
// Purpose:     Declaration of wxMouseState class
// Author:      Vadim Zeitlin
// Created:     2008-09-19 (extracted from wx/utils.h)
// Copyright:   (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

#ifndef _WX_MOUSESTATE_H_
#define _WX_MOUSESTATE_H_

#include "wx/gdicmn.h"      // for wxPoint
#include "wx/kbdstate.h"

// the symbolic names for the mouse buttons
enum wxMouseButton
{
    wxMOUSE_BTN_ANY     = -1,
    wxMOUSE_BTN_NONE    = 0,
    wxMOUSE_BTN_LEFT    = 1,
    wxMOUSE_BTN_MIDDLE  = 2,
    wxMOUSE_BTN_RIGHT   = 3,
    wxMOUSE_BTN_AUX1    = 4,
    wxMOUSE_BTN_AUX2    = 5,
    wxMOUSE_BTN_MAX
};

// ----------------------------------------------------------------------------
// wxMouseState contains the information about mouse position, buttons and also
// key modifiers
// ----------------------------------------------------------------------------

// wxMouseState is used to hold information about button and modifier state
// and is what is returned from wxGetMouseState.
class WXDLLIMPEXP_CORE wxMouseState : public wxKeyboardState
{
public:
    wxMouseState()
        : m_leftDown(false), m_middleDown(false), m_rightDown(false),
          m_aux1Down(false), m_aux2Down(false),
          m_x(0), m_y(0)
    {
    }

    // default copy ctor, assignment operator and dtor are ok


    // accessors for the mouse position
    wxCoord GetX() const { return m_x; }
    wxCoord GetY() const { return m_y; }
    wxPoint GetPosition() const { return wxPoint(m_x, m_y); }
    void GetPosition(wxCoord *x, wxCoord *y) const
    {
        if ( x )
            *x = m_x;
        if ( y )
            *y = m_y;
    }

    // this overload is for compatibility only
    void GetPosition(long *x, long *y) const
    {
        if ( x )
            *x = m_x;
        if ( y )
            *y = m_y;
    }

    // accessors for the pressed buttons
    bool LeftIsDown()    const { return m_leftDown; }
    bool MiddleIsDown()  const { return m_middleDown; }
    bool RightIsDown()   const { return m_rightDown; }
    bool Aux1IsDown()    const { return m_aux1Down; }
    bool Aux2IsDown()    const { return m_aux2Down; }

    bool ButtonIsDown(wxMouseButton but) const
    {
        switch ( but )
        {
            case wxMOUSE_BTN_ANY:
                return LeftIsDown() || MiddleIsDown() || RightIsDown() ||
                            Aux1IsDown() || Aux2IsDown();

            case wxMOUSE_BTN_LEFT:
                return LeftIsDown();

            case wxMOUSE_BTN_MIDDLE:
                return MiddleIsDown();

            case wxMOUSE_BTN_RIGHT:
                return RightIsDown();

            case wxMOUSE_BTN_AUX1:
                return Aux1IsDown();

            case wxMOUSE_BTN_AUX2:
                return Aux2IsDown();

            case wxMOUSE_BTN_NONE:
            case wxMOUSE_BTN_MAX:
                break;
        }

        wxFAIL_MSG(wxS("invalid parameter"));
        return false;
    }


    // these functions are mostly used by wxWidgets itself
    void SetX(wxCoord x) { m_x = x; }
    void SetY(wxCoord y) { m_y = y; }
    void SetPosition(wxPoint pos) { m_x = pos.x; m_y = pos.y; }

    void SetLeftDown(bool down)   { m_leftDown = down; }
    void SetMiddleDown(bool down) { m_middleDown = down; }
    void SetRightDown(bool down)  { m_rightDown = down; }
    void SetAux1Down(bool down)   { m_aux1Down = down; }
    void SetAux2Down(bool down)   { m_aux2Down = down; }

    // this mostly makes sense in the derived classes such as wxMouseEvent
    void SetState(const wxMouseState& state) { *this = state; }

    // these functions are for compatibility only, they were used in 2.8
    // version of wxMouseState but their names are confusing as wxMouseEvent
    // has methods with the same names which do something quite different so
    // don't use them any more
#if WXWIN_COMPATIBILITY_2_8
    wxDEPRECATED_INLINE(bool LeftDown() const, return LeftIsDown(); )
    wxDEPRECATED_INLINE(bool MiddleDown() const, return MiddleIsDown(); )
    wxDEPRECATED_INLINE(bool RightDown() const, return RightIsDown(); )
#endif // WXWIN_COMPATIBILITY_2_8

    // for compatibility reasons these variables are public as the code using
    // wxMouseEvent often uses them directly -- however they should not be
    // accessed directly in this class, use the accessors above instead
// private:
    bool m_leftDown   : 1;
    bool m_middleDown : 1;
    bool m_rightDown  : 1;
    bool m_aux1Down   : 1;
    bool m_aux2Down   : 1;

    wxCoord m_x,
            m_y;
};

#endif // _WX_MOUSESTATE_H_

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