48fa6bd38a
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@30640 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
514 lines
18 KiB
C++
514 lines
18 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/msw/window.h
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// Purpose: wxWindow class
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// Author: Julian Smart
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// Modified by: Vadim Zeitlin on 13.05.99: complete refont of message handling,
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// elimination of Default(), ...
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// Created: 01/02/97
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_WINDOW_H_
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#define _WX_WINDOW_H_
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// ---------------------------------------------------------------------------
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// headers
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// ---------------------------------------------------------------------------
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#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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#pragma interface "window.h"
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#endif
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// [at least] some version of Windows send extra mouse move messages after
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// a mouse click or a key press - to temporarily fix this problem, set the
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// define below to 1
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//
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// a better solution should be found later...
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#define wxUSE_MOUSEEVENT_HACK 0
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// ---------------------------------------------------------------------------
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// constants
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// ---------------------------------------------------------------------------
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// FIXME does anybody use those? they're unused by wxWidgets...
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enum
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{
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wxKEY_SHIFT = 1,
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wxKEY_CTRL = 2
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};
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// ---------------------------------------------------------------------------
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// wxWindow declaration for MSW
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// ---------------------------------------------------------------------------
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class WXDLLEXPORT wxWindowMSW : public wxWindowBase
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{
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public:
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wxWindowMSW() { Init(); }
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wxWindowMSW(wxWindow *parent,
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wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = 0,
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const wxString& name = wxPanelNameStr)
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{
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Init();
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Create(parent, id, pos, size, style, name);
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}
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virtual ~wxWindowMSW();
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bool Create(wxWindow *parent,
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wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = 0,
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const wxString& name = wxPanelNameStr);
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// implement base class pure virtuals
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virtual void SetTitle( const wxString& title);
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virtual wxString GetTitle() const;
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virtual void Raise();
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virtual void Lower();
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virtual bool Show( bool show = true );
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virtual bool Enable( bool enable = true );
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virtual void SetFocus();
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virtual void SetFocusFromKbd();
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virtual bool Reparent(wxWindowBase *newParent);
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virtual void WarpPointer(int x, int y);
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virtual void Refresh( bool eraseBackground = true,
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const wxRect *rect = (const wxRect *) NULL );
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virtual void Update();
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virtual void Freeze();
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virtual void Thaw();
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virtual void SetWindowStyleFlag( long style );
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virtual bool SetCursor( const wxCursor &cursor );
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virtual bool SetFont( const wxFont &font );
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virtual int GetCharHeight() const;
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virtual int GetCharWidth() const;
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virtual void GetTextExtent(const wxString& string,
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int *x, int *y,
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int *descent = (int *) NULL,
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int *externalLeading = (int *) NULL,
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const wxFont *theFont = (const wxFont *) NULL)
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const;
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#if wxUSE_MENUS_NATIVE
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virtual bool DoPopupMenu( wxMenu *menu, int x, int y );
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#endif // wxUSE_MENUS_NATIVE
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virtual void SetScrollbar( int orient, int pos, int thumbVisible,
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int range, bool refresh = true );
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virtual void SetScrollPos( int orient, int pos, bool refresh = true );
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virtual int GetScrollPos( int orient ) const;
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virtual int GetScrollThumb( int orient ) const;
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virtual int GetScrollRange( int orient ) const;
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virtual void ScrollWindow( int dx, int dy,
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const wxRect* rect = (wxRect *) NULL );
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virtual bool ScrollLines(int lines);
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virtual bool ScrollPages(int pages);
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#if wxUSE_DRAG_AND_DROP
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virtual void SetDropTarget( wxDropTarget *dropTarget );
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#endif // wxUSE_DRAG_AND_DROP
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// Accept files for dragging
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virtual void DragAcceptFiles(bool accept);
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#if WXWIN_COMPATIBILITY_2_4
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wxDEPRECATED( bool GetUseCtl3D() const );
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wxDEPRECATED( bool GetTransparentBackground() const );
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wxDEPRECATED( void SetTransparent(bool t = true) );
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#endif // WXWIN_COMPATIBILITY_2_4
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#ifndef __WXUNIVERSAL__
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// Native resource loading (implemented in src/msw/nativdlg.cpp)
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// FIXME: should they really be all virtual?
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virtual bool LoadNativeDialog(wxWindow* parent, wxWindowID& id);
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virtual bool LoadNativeDialog(wxWindow* parent, const wxString& name);
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wxWindow* GetWindowChild1(wxWindowID id);
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wxWindow* GetWindowChild(wxWindowID id);
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#endif // __WXUNIVERSAL__
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#if wxUSE_HOTKEY
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// install and deinstall a system wide hotkey
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virtual bool RegisterHotKey(int hotkeyId, int modifiers, int keycode);
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virtual bool UnregisterHotKey(int hotkeyId);
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#endif // wxUSE_HOTKEY
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// window handle stuff
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// -------------------
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WXHWND GetHWND() const { return m_hWnd; }
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void SetHWND(WXHWND hWnd) { m_hWnd = hWnd; }
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virtual WXWidget GetHandle() const { return GetHWND(); }
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void AssociateHandle(WXWidget handle);
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void DissociateHandle();
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// implementation from now on
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// ==========================
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// event handlers
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// --------------
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void OnPaint(wxPaintEvent& event);
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void OnEraseBackground(wxEraseEvent& event);
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#ifdef __WXWINCE__
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void OnInitDialog(wxInitDialogEvent& event);
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#endif
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public:
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// For implementation purposes - sometimes decorations make the client area
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// smaller
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virtual wxPoint GetClientAreaOrigin() const;
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// Windows subclassing
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void SubclassWin(WXHWND hWnd);
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void UnsubclassWin();
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WXFARPROC MSWGetOldWndProc() const { return m_oldWndProc; }
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void MSWSetOldWndProc(WXFARPROC proc) { m_oldWndProc = proc; }
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// return true if the window is of a standard (i.e. not wxWidgets') class
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//
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// to understand why does it work, look at SubclassWin() code and comments
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bool IsOfStandardClass() const { return m_oldWndProc != NULL; }
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wxWindow *FindItem(long id) const;
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wxWindow *FindItemByHWND(WXHWND hWnd, bool controlOnly = false) const;
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// MSW only: true if this control is part of the main control
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virtual bool ContainsHWND(WXHWND WXUNUSED(hWnd)) const { return false; };
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// translate wxWidgets style flags for this control into the Windows style
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// and optional extended style for the corresponding native control
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//
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// this is the function that should be overridden in the derived classes,
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// but you will mostly use MSWGetCreateWindowFlags() below
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virtual WXDWORD MSWGetStyle(long flags, WXDWORD *exstyle = NULL) const ;
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// get the MSW window flags corresponding to wxWidgets ones
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//
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// the functions returns the flags (WS_XXX) directly and puts the ext
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// (WS_EX_XXX) flags into the provided pointer if not NULL
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WXDWORD MSWGetCreateWindowFlags(WXDWORD *exflags = NULL) const
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{ return MSWGetStyle(GetWindowStyle(), exflags); }
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// translate wxWidgets coords into Windows ones suitable to be passed to
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// ::CreateWindow()
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//
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// returns true if non default coords are returned, false otherwise
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bool MSWGetCreateWindowCoords(const wxPoint& pos,
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const wxSize& size,
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int& x, int& y,
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int& w, int& h) const;
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// get the HWND to be used as parent of this window with CreateWindow()
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virtual WXHWND MSWGetParent() const;
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// creates the window of specified Windows class with given style, extended
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// style, title and geometry (default values
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//
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// returns true if the window has been created, false if creation failed
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bool MSWCreate(const wxChar *wclass,
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const wxChar *title = NULL,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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WXDWORD style = 0,
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WXDWORD exendedStyle = 0);
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virtual bool MSWCommand(WXUINT param, WXWORD id);
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#ifndef __WXUNIVERSAL__
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// Create an appropriate wxWindow from a HWND
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virtual wxWindow* CreateWindowFromHWND(wxWindow* parent, WXHWND hWnd);
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// Make sure the window style reflects the HWND style (roughly)
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virtual void AdoptAttributesFromHWND();
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#endif // __WXUNIVERSAL__
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// Setup background and foreground colours correctly
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virtual void SetupColours();
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// ------------------------------------------------------------------------
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// helpers for message handlers: these perform the same function as the
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// message crackers from <windowsx.h> - they unpack WPARAM and LPARAM into
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// the correct parameters
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// ------------------------------------------------------------------------
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void UnpackCommand(WXWPARAM wParam, WXLPARAM lParam,
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WXWORD *id, WXHWND *hwnd, WXWORD *cmd);
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void UnpackActivate(WXWPARAM wParam, WXLPARAM lParam,
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WXWORD *state, WXWORD *minimized, WXHWND *hwnd);
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void UnpackScroll(WXWPARAM wParam, WXLPARAM lParam,
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WXWORD *code, WXWORD *pos, WXHWND *hwnd);
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void UnpackCtlColor(WXWPARAM wParam, WXLPARAM lParam,
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WXHDC *hdc, WXHWND *hwnd);
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void UnpackMenuSelect(WXWPARAM wParam, WXLPARAM lParam,
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WXWORD *item, WXWORD *flags, WXHMENU *hmenu);
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// ------------------------------------------------------------------------
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// internal handlers for MSW messages: all handlers return a boolean value:
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// true means that the handler processed the event and false that it didn't
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// ------------------------------------------------------------------------
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// there are several cases where we have virtual functions for Windows
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// message processing: this is because these messages often require to be
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// processed in a different manner in the derived classes. For all other
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// messages, however, we do *not* have corresponding MSWOnXXX() function
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// and if the derived class wants to process them, it should override
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// MSWWindowProc() directly.
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// scroll event (both horizontal and vertical)
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virtual bool MSWOnScroll(int orientation, WXWORD nSBCode,
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WXWORD pos, WXHWND control);
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// child control notifications
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#ifdef __WIN95__
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virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
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#endif // __WIN95__
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// owner-drawn controls need to process these messages
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virtual bool MSWOnDrawItem(int id, WXDRAWITEMSTRUCT *item);
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virtual bool MSWOnMeasureItem(int id, WXMEASUREITEMSTRUCT *item);
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// the rest are not virtual
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bool HandleCreate(WXLPCREATESTRUCT cs, bool *mayCreate);
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bool HandleInitDialog(WXHWND hWndFocus);
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bool HandleDestroy();
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bool HandlePaint();
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bool HandleEraseBkgnd(WXHDC pDC);
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bool HandleMinimize();
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bool HandleMaximize();
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bool HandleSize(int x, int y, WXUINT flag);
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bool HandleSizing(wxRect& rect);
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bool HandleGetMinMaxInfo(void *mmInfo);
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bool HandleShow(bool show, int status);
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bool HandleActivate(int flag, bool minimized, WXHWND activate);
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bool HandleCommand(WXWORD id, WXWORD cmd, WXHWND control);
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bool HandleCtlColor(WXHBRUSH *hBrush, WXHDC hdc, WXHWND hWnd);
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bool HandlePaletteChanged(WXHWND hWndPalChange);
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bool HandleQueryNewPalette();
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bool HandleSysColorChange();
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bool HandleDisplayChange();
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bool HandleCaptureChanged(WXHWND gainedCapture);
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bool HandleQueryEndSession(long logOff, bool *mayEnd);
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bool HandleEndSession(bool endSession, long logOff);
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bool HandleSetFocus(WXHWND wnd);
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bool HandleKillFocus(WXHWND wnd);
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bool HandleDropFiles(WXWPARAM wParam);
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bool HandleMouseEvent(WXUINT msg, int x, int y, WXUINT flags);
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bool HandleMouseMove(int x, int y, WXUINT flags);
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bool HandleMouseWheel(WXWPARAM wParam, WXLPARAM lParam);
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bool HandleChar(WXWPARAM wParam, WXLPARAM lParam, bool isASCII = false);
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bool HandleKeyDown(WXWPARAM wParam, WXLPARAM lParam);
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bool HandleKeyUp(WXWPARAM wParam, WXLPARAM lParam);
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#if wxUSE_ACCEL
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bool HandleHotKey(WXWPARAM wParam, WXLPARAM lParam);
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#endif
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#ifdef __WIN32__
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int HandleMenuChar(int chAccel, WXLPARAM lParam);
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#endif
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bool HandleQueryDragIcon(WXHICON *hIcon);
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bool HandleSetCursor(WXHWND hWnd, short nHitTest, int mouseMsg);
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// Window procedure
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virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
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// Calls an appropriate default window procedure
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virtual WXLRESULT MSWDefWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
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// message processing helpers
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// return false if the message shouldn't be translated/preprocessed but
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// dispatched normally
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virtual bool MSWShouldPreProcessMessage(WXMSG* pMsg);
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// return true if the message was preprocessed and shouldn't be dispatched
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virtual bool MSWProcessMessage(WXMSG* pMsg);
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// return true if the message was translated and shouldn't be dispatched
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virtual bool MSWTranslateMessage(WXMSG* pMsg);
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// called when the window is about to be destroyed
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virtual void MSWDestroyWindow();
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// this function should return the brush to paint the window background
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// with or 0 for the default brush
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virtual WXHBRUSH MSWControlColor(WXHDC hDC);
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// Responds to colour changes: passes event on to children.
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void OnSysColourChanged(wxSysColourChangedEvent& event);
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// initialize various fields of wxMouseEvent (common part of MSWOnMouseXXX)
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void InitMouseEvent(wxMouseEvent& event, int x, int y, WXUINT flags);
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// check if mouse is in the window
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bool IsMouseInWindow() const;
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// virtual function for implementing internal idle
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// behaviour
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virtual void OnInternalIdle() ;
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protected:
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// the window handle
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WXHWND m_hWnd;
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// the old window proc (we subclass all windows)
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WXFARPROC m_oldWndProc;
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// additional (MSW specific) flags
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bool m_mouseInWindow:1;
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bool m_lastKeydownProcessed:1;
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// the size of one page for scrolling
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int m_xThumbSize;
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int m_yThumbSize;
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#if wxUSE_MOUSEEVENT_HACK
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// the coordinates of the last mouse event and the type of it
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long m_lastMouseX,
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m_lastMouseY;
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int m_lastMouseEvent;
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#endif // wxUSE_MOUSEEVENT_HACK
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WXHMENU m_hMenu; // Menu, if any
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// implement the base class pure virtuals
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virtual void DoClientToScreen( int *x, int *y ) const;
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virtual void DoScreenToClient( int *x, int *y ) const;
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virtual void DoGetPosition( int *x, int *y ) const;
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virtual void DoGetSize( int *width, int *height ) const;
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virtual void DoGetClientSize( int *width, int *height ) const;
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virtual void DoSetSize(int x, int y,
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int width, int height,
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int sizeFlags = wxSIZE_AUTO);
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virtual void DoSetClientSize(int width, int height);
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virtual void DoCaptureMouse();
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virtual void DoReleaseMouse();
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// has the window been frozen by Freeze()?
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bool IsFrozen() const { return m_frozenness > 0; }
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// move the window to the specified location and resize it: this is called
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// from both DoSetSize() and DoSetClientSize() and would usually just call
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// ::MoveWindow() except for composite controls which will want to arrange
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// themselves inside the given rectangle
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virtual void DoMoveWindow(int x, int y, int width, int height);
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#if wxUSE_TOOLTIPS
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virtual void DoSetToolTip( wxToolTip *tip );
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// process TTN_NEEDTEXT message properly (i.e. fixing the bugs in
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// comctl32.dll in our code -- see the function body for more info)
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bool HandleTooltipNotify(WXUINT code,
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WXLPARAM lParam,
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const wxString& ttip);
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#endif // wxUSE_TOOLTIPS
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// the helper functions used by HandleChar/KeyXXX methods
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wxKeyEvent CreateKeyEvent(wxEventType evType, int id,
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WXLPARAM lParam = 0, WXWPARAM wParam = 0) const;
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private:
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// common part of all ctors
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void Init();
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// the (non-virtual) handlers for the events
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bool HandleMove(int x, int y);
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bool HandleMoving(wxRect& rect);
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bool HandleJoystickEvent(WXUINT msg, int x, int y, WXUINT flags);
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#ifdef __WIN95__
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bool HandleNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
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#endif // __WIN95__
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// list of disabled children before last call to our Disable()
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wxWindowList *m_childrenDisabled;
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// number of calls to Freeze() minus number of calls to Thaw()
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unsigned int m_frozenness;
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DECLARE_DYNAMIC_CLASS(wxWindowMSW)
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DECLARE_NO_COPY_CLASS(wxWindowMSW)
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DECLARE_EVENT_TABLE()
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};
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// ----------------------------------------------------------------------------
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// inline functions
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// ----------------------------------------------------------------------------
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#if WXWIN_COMPATIBILITY_2_4
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inline bool wxWindowMSW::GetUseCtl3D() const { return false; }
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inline bool wxWindowMSW::GetTransparentBackground() const { return false; }
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inline void wxWindowMSW::SetTransparent(bool WXUNUSED(t)) { }
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#endif // WXWIN_COMPATIBILITY_2_4
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// ---------------------------------------------------------------------------
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// global functions
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// ---------------------------------------------------------------------------
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// kbd code translation
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WXDLLEXPORT int wxCharCodeMSWToWX(int keySym, WXLPARAM lParam = 0);
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WXDLLEXPORT WXWORD wxCharCodeWXToMSW(int id, bool *IsVirtual);
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// window creation helper class: before creating a new HWND, instantiate an
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// object of this class on stack - this allows to process the messages sent to
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// the window even before CreateWindow() returns
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class wxWindowCreationHook
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{
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public:
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wxWindowCreationHook(wxWindowMSW *winBeingCreated);
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~wxWindowCreationHook();
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};
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// ----------------------------------------------------------------------------
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// global objects
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// ----------------------------------------------------------------------------
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// notice that this hash must be defined after wxWindow declaration as it
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// needs to "see" its dtor and not just forward declaration
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#include "wx/hash.h"
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// pseudo-template HWND <-> wxWindow hash table
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#if WXWIN_COMPATIBILITY_2_4
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WX_DECLARE_HASH(wxWindow, wxWindowList, wxWinHashTable);
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#else
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WX_DECLARE_HASH(wxWindowMSW, wxWindowList, wxWinHashTable);
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#endif
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extern wxWinHashTable *wxWinHandleHash;
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#endif
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// _WX_WINDOW_H_
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