make wxKeyEvent and wxMouseEvent derive from the same wxKeyboardState object (indirectly via wxMouseState in the case of the latter) to make Get/HasModifiers() available in wxMouseEvent as well while avoiding code duplication

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@55745 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/mousestate.h

@@ -0,0 +1,70 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/mousestate.h
+// Purpose:     Declaration of wxMouseState class
+// Author:      Vadim Zeitlin
+// Created:     2008-09-19 (extracted from wx/utils.h)
+// RCS-ID:      $Id$
+// Copyright:   (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_MOUSESTATE_H_
+#define _WX_MOUSESTATE_H_
+
+#include "wx/kbdstate.h"
+
+// ----------------------------------------------------------------------------
+// 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_x(0), m_y(0),
+          m_leftDown(false), m_middleDown(false), m_rightDown(false),
+          m_aux1Down(false), m_aux2Down(false)
+    {
+    }
+
+    // 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); }
+
+    // accessors for the pressed buttons
+    bool LeftDown()    const { return m_leftDown; }
+    bool MiddleDown()  const { return m_middleDown; }
+    bool RightDown()   const { return m_rightDown; }
+    bool Aux1Down()    const { return m_aux1Down; }
+    bool Aux2Down()    const { return m_aux2Down; }
+
+    // these functions are mostly used by wxWidgets itself
+    void SetX(wxCoord x) { m_x = x; }
+    void SetY(wxCoord y) { m_y = 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; }
+
+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_
+