window.h

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

/////////////////////////////////////////////////////////////////////////////
// Name:        wx/os2/window.h
// Purpose:     wxWindow class
// Author:      David Webster
// Modified by:
// Created:     10/12/99
// RCS-ID:      $Id: window.h,v 1.58 2006/08/24 15:37:25 ABX Exp $
// Copyright:   (c) David Webster
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_WINDOW_H_
#define _WX_WINDOW_H_

#define wxUSE_MOUSEEVENT_HACK 0

// ---------------------------------------------------------------------------
// headers
// ---------------------------------------------------------------------------
#define INCL_DOS
#define INCL_PM
#define INCL_GPI
#include <os2.h>


// ---------------------------------------------------------------------------
// forward declarations
// ---------------------------------------------------------------------------
#ifndef CW_USEDEFAULT
#  define  CW_USEDEFAULT ((int)0x80000000)
#endif

// ---------------------------------------------------------------------------
// forward declarations
// ---------------------------------------------------------------------------

class WXDLLEXPORT wxButton;

// ---------------------------------------------------------------------------
// constants
// ---------------------------------------------------------------------------

#if WXWIN_COMPATIBILITY_2_4
// they're unused by wxWidgets...
enum
{
    wxKEY_SHIFT = 1,
    wxKEY_CTRL  = 2
};
#endif

// ---------------------------------------------------------------------------
// wxWindow declaration for OS/2 PM
// ---------------------------------------------------------------------------

class WXDLLEXPORT wxWindowOS2 : public wxWindowBase
{
public:
    wxWindowOS2()
    {
        Init();
    }

    wxWindowOS2( wxWindow*       pParent
                ,wxWindowID      vId
                ,const wxPoint&  rPos = wxDefaultPosition
                ,const wxSize&   rSize = wxDefaultSize
                ,long            lStyle = 0
                ,const wxString& rName = wxPanelNameStr
               )
    {
        Init();
        Create( pParent
               ,vId
               ,rPos
               ,rSize
               ,lStyle
               ,rName
              );
    }

    virtual ~wxWindowOS2();

    bool Create( wxWindow*       pParent
                ,wxWindowID      vId
                ,const wxPoint&  rPos = wxDefaultPosition
                ,const wxSize&   rSize = wxDefaultSize
                ,long            lStyle = 0
                ,const wxString& rName = wxPanelNameStr
               );

    // implement base class pure virtuals
    virtual void     SetLabel(const wxString& label);
    virtual wxString GetLabel(void) const;
    virtual void     Raise(void);
    virtual void     Lower(void);
    virtual bool     Show(bool bShow = true);
    virtual bool     Enable(bool bEnable = true);
    virtual void     SetFocus(void);
    virtual void     SetFocusFromKbd(void);
    virtual bool     Reparent(wxWindow* pNewParent);
    virtual void     WarpPointer( int x
                                 ,int y
                                );
    virtual void     Refresh( bool          bEraseBackground = true
                             ,const wxRect* pRect = (const wxRect *)NULL
                            );
    virtual void     Freeze(void);
    virtual void     Update(void);
    virtual void     Thaw(void);
    virtual void     SetWindowStyleFlag(long lStyle);
    virtual bool     SetCursor(const wxCursor& rCursor);
    virtual bool     SetFont(const wxFont& rFont);
    virtual int      GetCharHeight(void) const;
    virtual int      GetCharWidth(void) const;
    virtual void     GetTextExtent( const wxString& rString
                                   ,int*            pX
                                   ,int*            pY
                                   ,int*            pDescent = (int *)NULL
                                   ,int*            pExternalLeading = (int *)NULL
                                   ,const wxFont*   pTheFont = (const wxFont *)NULL
                                  ) const;
#if wxUSE_MENUS_NATIVE
    virtual bool     DoPopupMenu( wxMenu* pMenu
                                 ,int     nX
                                 ,int     nY
                                );
#endif // wxUSE_MENUS_NATIVE

    virtual void     SetScrollbar( int  nOrient
                                  ,int  nPos
                                  ,int  nThumbVisible
                                  ,int  nRange
                                  ,bool bRefresh = true
                                 );
    virtual void     SetScrollPos( int  nOrient
                                  ,int  nPos
                                  ,bool bRefresh = true
                                 );
    virtual int      GetScrollPos(int nOrient) const;
    virtual int      GetScrollThumb(int nOrient) const;
    virtual int      GetScrollRange(int nOrient) const;
    virtual void     ScrollWindow( int           nDx
                                  ,int           nDy
                                  ,const wxRect* pRect = (wxRect *)NULL
                                 );

    inline HWND                   GetScrollBarHorz(void) const {return m_hWndScrollBarHorz;}
    inline HWND                   GetScrollBarVert(void) const {return m_hWndScrollBarVert;};
#if wxUSE_DRAG_AND_DROP
    virtual void SetDropTarget(wxDropTarget* pDropTarget);
#endif // wxUSE_DRAG_AND_DROP

    // Accept files for dragging
    virtual void DragAcceptFiles(bool bAccept);

#ifndef __WXUNIVERSAL__
    // Native resource loading (implemented in src/os2/nativdlg.cpp)
    // FIXME: should they really be all virtual?
    virtual bool LoadNativeDialog( wxWindow*   pParent
                                  ,wxWindowID& vId
                                 );
    virtual bool LoadNativeDialog( wxWindow*       pParent
                                  ,const wxString& rName
                                 );
    wxWindow*    GetWindowChild1(wxWindowID vId);
    wxWindow*    GetWindowChild(wxWindowID vId);
#endif //__WXUNIVERSAL__

    // implementation from now on
    // --------------------------

    // simple accessors
    // ----------------

    WXHWND           GetHWND(void) const { return m_hWnd; }
    void             SetHWND(WXHWND hWnd) { m_hWnd = hWnd; }
    virtual WXWidget GetHandle(void) const { return GetHWND(); }
    bool             GetUseCtl3D(void) const { return m_bUseCtl3D; }
    bool             GetTransparentBackground(void) const { return m_bBackgroundTransparent; }
    void             SetTransparentBackground(bool bT = true) { m_bBackgroundTransparent = bT; }

    // event handlers
    // --------------
    void OnSetFocus(wxFocusEvent& rEvent);
    void OnEraseBackground(wxEraseEvent& rEvent);
    void OnIdle(wxIdleEvent& rEvent);

public:

    // Windows subclassing
    void SubclassWin(WXHWND hWnd);
    void UnsubclassWin(void);

    WXFARPROC OS2GetOldWndProc(void) const { return m_fnOldWndProc; }
    void OS2SetOldWndProc(WXFARPROC fnProc) { m_fnOldWndProc = fnProc; }
    //
    // Return true if the window is of a standard (i.e. not wxWidgets') class
    //
    bool IsOfStandardClass(void) const { return m_fnOldWndProc != NULL; }

    wxWindow* FindItem(long lId) const;
    wxWindow* FindItemByHWND( WXHWND hWnd
                             ,bool   bControlOnly = false
                            ) const;

    // Make a Windows extended style from the given wxWidgets window style ?? applicable to OS/2??
    static WXDWORD MakeExtendedStyle( long lStyle
                                     ,bool bEliminateBorders = true
                                    );

    // PM only: true if this control is part of the main control
    virtual bool ContainsHWND(WXHWND WXUNUSED(hWnd)) const { return false; };

    // translate wxWidgets style flags for this control into the PM style
    // and optional extended style for the corresponding native control
    //
    // this is the function that should be overridden in the derived classes,
    // but you will mostly use OS2GetCreateWindowFlags() below
    virtual WXDWORD OS2GetStyle( long     lFlags
                                ,WXDWORD* pdwExstyle = NULL
                               ) const;

    // get the MSW window flags corresponding to wxWidgets ones
    //
    // the functions returns the flags (WS_XXX) directly and puts the ext
    // (WS_EX_XXX) flags into the provided pointer if not NULL
    WXDWORD OS2GetCreateWindowFlags(WXDWORD* pdwExflags = NULL) const
        { return OS2GetStyle(GetWindowStyle(), pdwExflags); }


    // get the HWND to be used as parent of this window with CreateWindow()
    virtual WXHWND OS2GetParent(void) const;

    // returns true if the window has been created
    bool         OS2Create( PSZ            zClass
                           ,const wxChar*  zTitle
                           ,WXDWORD        dwStyle
                           ,const wxPoint& rPos
                           ,const wxSize&  rSize
                           ,void*          pCtlData
                           ,WXDWORD        dwExStyle
                           ,bool           bIsChild
                          );
    virtual bool OS2Command( WXUINT uParam
                            ,WXWORD nId
                           );

#ifndef __WXUNIVERSAL__
    // Create an appropriate wxWindow from a HWND
    virtual wxWindow* CreateWindowFromHWND( wxWindow* pParent
                                           ,WXHWND    hWnd
                                          );

    // Make sure the window style reflects the HWND style (roughly)
    virtual void AdoptAttributesFromHWND(void);
#endif

    // Setup background and foreground colours correctly
    virtual void SetupColours(void);

    // ------------------------------------------------------------------------
    // helpers for message handlers: these perform the same function as the
    // message crackers from <windowsx.h> - they unpack WPARAM and LPARAM into
    // the correct parameters
    // ------------------------------------------------------------------------

    void UnpackCommand( WXWPARAM wParam
                       ,WXLPARAM lParam,
                        WXWORD*  pId
                       ,WXHWND*  pHwnd
                       ,WXWORD*  pCmd
                      );
    void UnpackActivate( WXWPARAM wParam
                        ,WXLPARAM lParam
                        ,WXWORD*  pState
                        ,WXHWND*  pHwnd
                       );
    void UnpackScroll( WXWPARAM wParam
                      ,WXLPARAM lParam
                      ,WXWORD*  pCode
                      ,WXWORD*  pPos
                      ,WXHWND*  pHwnd
                     );
    void UnpackMenuSelect( WXWPARAM wParam
                          ,WXLPARAM lParam
                          ,WXWORD*  pTtem
                          ,WXWORD*  pFlags
                          ,WXHMENU* pHmenu
                         );

    // ------------------------------------------------------------------------
    // internal handlers for OS2 messages: all handlers return a boolen value:
    // true means that the handler processed the event and false that it didn't
    // ------------------------------------------------------------------------