event.h

来自「A*算法 A*算法 A*算法 A*算法A*算法A*算法」· C头文件 代码 · 共 2,127 行 · 第 1/5 页

    wxPoint GetLogicalPosition(const wxDC& dc) const;

    // Get X position
    wxCoord GetX() const { return m_x; }

    // Get Y position
    wxCoord GetY() const { return m_y; }

    // Get wheel rotation, positive or negative indicates direction of
    // rotation.  Current devices all send an event when rotation is equal to
    // +/-WheelDelta, but this allows for finer resolution devices to be
    // created in the future.  Because of this you shouldn't assume that one
    // event is equal to 1 line or whatever, but you should be able to either
    // do partial line scrolling or wait until +/-WheelDelta rotation values
    // have been accumulated before scrolling.
    int GetWheelRotation() const { return m_wheelRotation; }

    // Get wheel delta, normally 120.  This is the threshold for action to be
    // taken, and one such action (for example, scrolling one increment)
    // should occur for each delta.
    int GetWheelDelta() const { return m_wheelDelta; }

    // Returns the configured number of lines (or whatever) to be scrolled per
    // wheel action.  Defaults to one.
    int GetLinesPerAction() const { return m_linesPerAction; }

    // Is the system set to do page scrolling?
    bool IsPageScroll() const { return ((unsigned int)m_linesPerAction == UINT_MAX); }

    virtual wxEvent *Clone() const { return new wxMouseEvent(*this); }

    wxMouseEvent& operator=(const wxMouseEvent& event) { Assign(event); return *this; }

public:
    wxCoord m_x, m_y;

    bool          m_leftDown;
    bool          m_middleDown;
    bool          m_rightDown;

    bool          m_controlDown;
    bool          m_shiftDown;
    bool          m_altDown;
    bool          m_metaDown;

    int           m_wheelRotation;
    int           m_wheelDelta;
    int           m_linesPerAction;

protected:
    void Assign(const wxMouseEvent& evt);

private:
    DECLARE_DYNAMIC_CLASS(wxMouseEvent)
};

// Cursor set event

/*
   wxEVT_SET_CURSOR
 */

class WXDLLIMPEXP_CORE wxSetCursorEvent : public wxEvent
{
public:
    wxSetCursorEvent(wxCoord x = 0, wxCoord y = 0)
        : wxEvent(0, wxEVT_SET_CURSOR),
          m_x(x), m_y(y), m_cursor()
        { }

    wxSetCursorEvent(const wxSetCursorEvent & event)
        : wxEvent(event),
          m_x(event.m_x),
          m_y(event.m_y),
          m_cursor(event.m_cursor)
        { }

    wxCoord GetX() const { return m_x; }
    wxCoord GetY() const { return m_y; }

    void SetCursor(const wxCursor& cursor) { m_cursor = cursor; }
    const wxCursor& GetCursor() const { return m_cursor; }
    bool HasCursor() const { return m_cursor.Ok(); }

    virtual wxEvent *Clone() const { return new wxSetCursorEvent(*this); }

private:
    wxCoord  m_x, m_y;
    wxCursor m_cursor;

private:
    DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxSetCursorEvent)
};

// Keyboard input event class

/*
 wxEVT_CHAR
 wxEVT_CHAR_HOOK
 wxEVT_KEY_DOWN
 wxEVT_KEY_UP
 wxEVT_HOTKEY
 */

class WXDLLIMPEXP_CORE wxKeyEvent : public wxEvent
{
public:
    wxKeyEvent(wxEventType keyType = wxEVT_NULL);
    wxKeyEvent(const wxKeyEvent& evt);

    // Find state of shift/control keys
    bool ControlDown() const { return m_controlDown; }
    bool MetaDown() const { return m_metaDown; }
    bool AltDown() const { return m_altDown; }
    bool ShiftDown() const { return m_shiftDown; }

    // "Cmd" is a pseudo key which is Control for PC and Unix platforms but
    // Apple ("Command") key under Macs: it makes often sense to use it instead
    // of, say, ControlDown() because Cmd key is used for the same thing under
    // Mac as Ctrl elsewhere (but Ctrl still exists, just not used for this
    // purpose under Mac)
    bool CmdDown() const
    {
#if defined(__WXMAC__) || defined(__WXCOCOA__)
        return MetaDown();
#else
        return ControlDown();
#endif
    }

    // exclude MetaDown() from HasModifiers() because NumLock under X is often
    // configured as mod2 modifier, yet the key events even when it is pressed
    // should be processed normally, not like Ctrl- or Alt-key
    bool HasModifiers() const { return ControlDown() || AltDown(); }

    // get the key code: an ASCII7 char or an element of wxKeyCode enum
    int GetKeyCode() const { return (int)m_keyCode; }

#if wxUSE_UNICODE
    // get the Unicode character corresponding to this key
    wxChar GetUnicodeKey() const { return m_uniChar; }
#endif // wxUSE_UNICODE

    // get the raw key code (platform-dependent)
    wxUint32 GetRawKeyCode() const { return m_rawCode; }

    // get the raw key flags (platform-dependent)
    wxUint32 GetRawKeyFlags() const { return m_rawFlags; }

    // Find the position of the event
    void GetPosition(wxCoord *xpos, wxCoord *ypos) const
    {
        if (xpos) *xpos = m_x;
        if (ypos) *ypos = m_y;
    }

    void GetPosition(long *xpos, long *ypos) const
    {
        if (xpos) *xpos = (long)m_x;
        if (ypos) *ypos = (long)m_y;
    }

    wxPoint GetPosition() const
        { return wxPoint(m_x, m_y); }

    // Get X position
    wxCoord GetX() const { return m_x; }

    // Get Y position
    wxCoord GetY() const { return m_y; }

    // deprecated, Use GetKeyCode instead.
    wxDEPRECATED( long KeyCode() const );

    virtual wxEvent *Clone() const { return new wxKeyEvent(*this); }

    // we do need to copy wxKeyEvent sometimes (in wxTreeCtrl code, for
    // example)
    wxKeyEvent& operator=(const wxKeyEvent& evt)
    {
        m_x = evt.m_x;
        m_y = evt.m_y;

        m_keyCode = evt.m_keyCode;

        m_controlDown = evt.m_controlDown;
        m_shiftDown = evt.m_shiftDown;
        m_altDown = evt.m_altDown;
        m_metaDown = evt.m_metaDown;
        m_scanCode = evt.m_scanCode;
        m_rawCode = evt.m_rawCode;
        m_rawFlags = evt.m_rawFlags;
#if wxUSE_UNICODE
        m_uniChar = evt.m_uniChar;
#endif

        return *this;
    }

public:
    wxCoord       m_x, m_y;

    long          m_keyCode;

    bool          m_controlDown;
    bool          m_shiftDown;
    bool          m_altDown;
    bool          m_metaDown;
    bool          m_scanCode;

#if wxUSE_UNICODE
    // This contains the full Unicode character
    // in a character events in Unicode mode
    wxChar        m_uniChar;
#endif

    // these fields contain the platform-specific information about
    // key that was pressed
    wxUint32      m_rawCode;
    wxUint32      m_rawFlags;

private:
    DECLARE_DYNAMIC_CLASS(wxKeyEvent)
};

// Size event class
/*
 wxEVT_SIZE
 */

class WXDLLIMPEXP_CORE wxSizeEvent : public wxEvent
{
public:
    wxSizeEvent() : wxEvent(0, wxEVT_SIZE)
        { }
    wxSizeEvent(const wxSize& sz, int winid = 0)
        : wxEvent(winid, wxEVT_SIZE),
          m_size(sz)
        { }
    wxSizeEvent(const wxSizeEvent & event)
        : wxEvent(event),
          m_size(event.m_size), m_rect(event.m_rect)
        { }
    wxSizeEvent(const wxRect& rect, int id = 0)
        : m_size(rect.GetSize()), m_rect(rect)
        { m_eventType = wxEVT_SIZING; m_id = id; }

    wxSize GetSize() const { return m_size; }
    wxRect GetRect() const { return m_rect; }
    void SetRect(wxRect rect) { m_rect = rect; }

    virtual wxEvent *Clone() const { return new wxSizeEvent(*this); }

public:
    // For internal usage only. Will be converted to protected members.
    wxSize m_size;
    wxRect m_rect; // Used for wxEVT_SIZING

private:
    DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxSizeEvent)
};

// Move event class

/*
 wxEVT_MOVE
 */

class WXDLLIMPEXP_CORE wxMoveEvent : public wxEvent
{
public:
    wxMoveEvent()
        : wxEvent(0, wxEVT_MOVE)
        { }
    wxMoveEvent(const wxPoint& pos, int winid = 0)
        : wxEvent(winid, wxEVT_MOVE),
          m_pos(pos)
        { }
    wxMoveEvent(const wxMoveEvent& event)
        : wxEvent(event),
          m_pos(event.m_pos)
    { }
    wxMoveEvent(const wxRect& rect, int id = 0)
        : m_pos(rect.GetPosition()), m_rect(rect)
        { m_eventType = wxEVT_MOVING; m_id = id; }

    wxPoint GetPosition() const { return m_pos; }
    void SetPosition(const wxPoint& pos) { m_pos = pos; }
    wxRect GetRect() const { return m_rect; }
    void SetRect(wxRect rect) { m_rect = rect; }

    virtual wxEvent *Clone() const { return new wxMoveEvent(*this); }

#if WXWIN_COMPATIBILITY_2_4
public:
#else
protected:
#endif
    wxPoint m_pos;
    wxRect m_rect;

private:
    DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxMoveEvent)
};

// Paint event class
/*
 wxEVT_PAINT
 wxEVT_NC_PAINT
 wxEVT_PAINT_ICON
 */

#if defined(__WXDEBUG__) && (defined(__WXMSW__) || defined(__WXPM__))
    // see comments in src/msw|os2/dcclient.cpp where g_isPainting is defined
    extern WXDLLIMPEXP_CORE int g_isPainting;
#endif // debug

class WXDLLIMPEXP_CORE wxPaintEvent : public wxEvent
{
public:
    wxPaintEvent(int Id = 0)
        : wxEvent(Id, wxEVT_PAINT)
    {
#if defined(__WXDEBUG__) && (defined(__WXMSW__) || defined(__WXPM__))
        // set the internal flag for the duration of processing of WM_PAINT
        g_isPainting++;
#endif // debug
    }

    // default copy ctor and dtor are normally fine, we only need them to keep
    // g_isPainting updated in debug build
#if defined(__WXDEBUG__) && (defined(__WXMSW__) || defined(__WXPM__))
    wxPaintEvent(const wxPaintEvent& event)
            : wxEvent(event)
    {
        g_isPainting++;
    }

    ~wxPaintEvent()
    {
        g_isPainting--;
    }
#endif // debug

    virtual wxEvent *Clone() const { return new wxPaintEvent(*this); }

private:
    DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxPaintEvent)
};

class WXDLLIMPEXP_CORE wxNcPaintEvent : public wxEvent
{
public:
    wxNcPaintEvent(int winid = 0)
        : wxEvent(winid, wxEVT_NC_PAINT)
        { }

    virtual wxEvent *Clone() const { return new wxNcPaintEvent(*this); }

private:
    DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxNcPaintEvent)
};

// Erase background event class
/*
 wxEVT_ERASE_BACKGROUND
 */

class WXDLLIMPEXP_CORE wxEraseEvent : public wxEvent
{
public:
    wxEraseEvent(int Id = 0, wxDC *dc = (wxDC *) NULL)
        : wxEvent(Id, wxEVT_ERASE_BACKGROUND),
          m_dc(dc)
        { }

    wxEraseEvent(const wxEraseEvent& event)
        : wxEvent(event),
          m_dc(event.m_dc)
        { }

    wxDC *GetDC() const { return m_dc; }

    virtual wxEvent *Clone() const { return new wxEraseEvent(*this); }

#if WXWIN_COMPATIBILITY_2_4
public:
#else
protected:
#endif
    wxDC *m_dc;

private:
    DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxEraseEvent)
};

// Focus event class
/*
 wxEVT_SET_FOCUS
 wxEVT_KILL_FOCUS
 */

class WXDLLIMPEXP_CORE wxFocusEvent : public wxEvent
{
public:
    wxFocusEvent(wxEventType type = wxEVT_NULL, int winid = 0)
        : wxEvent(winid, type)
        { m_win = NULL; }

    wxFocusEvent(const wxFocusEvent& event)
        : wxEvent(event)
        { m_win = event.m_win; }

    // The window associated with this event is the window which had focus
    // before for SET event and the window which will have focus for the KILL
    // one. NB: it may be NULL in both cases!
    wxWindow *GetWindow() const { return m_win; }
    void SetWindow(wxWindow *win) { m_win = win; }

    virtual wxEvent *Clone() const { return new wxFocusEvent(*this); }

private:
    wxWindow *m_win;

private:
    DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxFocusEvent)