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/////////////////////////////////////////////////////////////////////////////
// Name: wx/msw/window.h
// Purpose: wxWindowMSW class
// Author: Julian Smart
// Modified by: Vadim Zeitlin on 13.05.99: complete refont of message handling,
// elimination of Default(), ...
// Created: 01/02/97
// RCS-ID: $Id: window.h 53929 2008-06-02 18:27:16Z RD $
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_WINDOW_H_
#define _WX_WINDOW_H_
// ---------------------------------------------------------------------------
// constants
// ---------------------------------------------------------------------------
#if WXWIN_COMPATIBILITY_2_4
// they're unused by wxWidgets...
enum
{
wxKEY_SHIFT = 1,
wxKEY_CTRL = 2
};
#endif
// ---------------------------------------------------------------------------
// wxWindow declaration for MSW
// ---------------------------------------------------------------------------
class WXDLLEXPORT wxWindowMSW : public wxWindowBase
{
friend class wxSpinCtrl;
friend class wxSlider;
friend class wxRadioBox;
#if defined __VISUALC__ && __VISUALC__ <= 1200
friend class wxWindowMSW;
#endif
public:
wxWindowMSW() { Init(); }
wxWindowMSW(wxWindow *parent,
wxWindowID id,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = 0,
const wxString& name = wxPanelNameStr)
{
Init();
Create(parent, id, pos, size, style, name);
}
virtual ~wxWindowMSW();
bool Create(wxWindow *parent,
wxWindowID id,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = 0,
const wxString& name = wxPanelNameStr);
// implement base class pure virtuals
virtual void SetLabel(const wxString& label);
virtual wxString GetLabel() const;
virtual void Raise();
virtual void Lower();
virtual bool Show( bool show = true );
virtual bool Enable( bool enable = true );
virtual void SetFocus();
virtual void SetFocusFromKbd();
virtual bool Reparent(wxWindowBase *newParent);
virtual void WarpPointer(int x, int y);
virtual void Refresh( bool eraseBackground = true,
const wxRect *rect = (const wxRect *) NULL );
virtual void Update();
virtual void Freeze();
virtual void Thaw();
virtual bool IsFrozen() const { return m_frozenness > 0; }
virtual void SetWindowStyleFlag(long style);
virtual void SetExtraStyle(long exStyle);
virtual bool SetCursor( const wxCursor &cursor );
virtual bool SetFont( const wxFont &font );
virtual int GetCharHeight() const;
virtual int GetCharWidth() const;
virtual void GetTextExtent(const wxString& string,
int *x, int *y,
int *descent = (int *) NULL,
int *externalLeading = (int *) NULL,
const wxFont *theFont = (const wxFont *) NULL)
const;
virtual void SetScrollbar( int orient, int pos, int thumbVisible,
int range, bool refresh = true );
virtual void SetScrollPos( int orient, int pos, bool refresh = true );
virtual int GetScrollPos( int orient ) const;
virtual int GetScrollThumb( int orient ) const;
virtual int GetScrollRange( int orient ) const;
virtual void ScrollWindow( int dx, int dy,
const wxRect* rect = (wxRect *) NULL );
virtual bool ScrollLines(int lines);
virtual bool ScrollPages(int pages);
virtual void SetLayoutDirection(wxLayoutDirection dir);
virtual wxLayoutDirection GetLayoutDirection() const;
virtual wxCoord AdjustForLayoutDirection(wxCoord x,
wxCoord width,
wxCoord widthTotal) const;
#if wxUSE_DRAG_AND_DROP
virtual void SetDropTarget( wxDropTarget *dropTarget );
#endif // wxUSE_DRAG_AND_DROP
// Accept files for dragging
virtual void DragAcceptFiles(bool accept);
#if WXWIN_COMPATIBILITY_2_4
wxDEPRECATED( bool GetUseCtl3D() const );
wxDEPRECATED( bool GetTransparentBackground() const );
wxDEPRECATED( void SetTransparent(bool t = true) );
#endif // WXWIN_COMPATIBILITY_2_4
#ifndef __WXUNIVERSAL__
// Native resource loading (implemented in src/msw/nativdlg.cpp)
// FIXME: should they really be all virtual?
virtual bool LoadNativeDialog(wxWindow* parent, wxWindowID& id);
virtual bool LoadNativeDialog(wxWindow* parent, const wxString& name);
wxWindow* GetWindowChild1(wxWindowID id);
wxWindow* GetWindowChild(wxWindowID id);
#endif // __WXUNIVERSAL__
#if wxUSE_HOTKEY
// install and deinstall a system wide hotkey
virtual bool RegisterHotKey(int hotkeyId, int modifiers, int keycode);
virtual bool UnregisterHotKey(int hotkeyId);
#endif // wxUSE_HOTKEY
#ifdef __POCKETPC__
bool IsContextMenuEnabled() const { return m_contextMenuEnabled; }
void EnableContextMenu(bool enable = true) { m_contextMenuEnabled = enable; }
#endif
// window handle stuff
// -------------------
WXHWND GetHWND() const { return m_hWnd; }
void SetHWND(WXHWND hWnd) { m_hWnd = hWnd; }
virtual WXWidget GetHandle() const { return GetHWND(); }
void AssociateHandle(WXWidget handle);
void DissociateHandle();
// does this window have deferred position and/or size?
bool IsSizeDeferred() const;
// implementation from now on
// ==========================
// event handlers
// --------------
void OnPaint(wxPaintEvent& event);
void OnEraseBackground(wxEraseEvent& event);
#ifdef __WXWINCE__
void OnInitDialog(wxInitDialogEvent& event);
#endif
public:
// Windows subclassing
void SubclassWin(WXHWND hWnd);
void UnsubclassWin();
WXFARPROC MSWGetOldWndProc() const { return m_oldWndProc; }
void MSWSetOldWndProc(WXFARPROC proc) { m_oldWndProc = proc; }
// return true if the window is of a standard (i.e. not wxWidgets') class
//
// to understand why does it work, look at SubclassWin() code and comments
bool IsOfStandardClass() const { return m_oldWndProc != NULL; }
wxWindow *FindItem(long id) const;
wxWindow *FindItemByHWND(WXHWND hWnd, bool controlOnly = false) const;
// MSW only: true if this control is part of the main control
virtual bool ContainsHWND(WXHWND WXUNUSED(hWnd)) const { return false; }
#if wxUSE_TOOLTIPS
// MSW only: true if this window or any of its children have a tooltip
virtual bool HasToolTips() const { return GetToolTip() != NULL; }
#endif // wxUSE_TOOLTIPS
// translate wxWidgets style flags for this control into the Windows 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 MSWGetCreateWindowFlags() below
virtual WXDWORD MSWGetStyle(long flags, WXDWORD *exstyle = 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 MSWGetCreateWindowFlags(WXDWORD *exflags = NULL) const
{ return MSWGetStyle(GetWindowStyle(), exflags); }
// update the real underlying window style flags to correspond to the
// current wxWindow object style (safe to call even if window isn't fully
// created yet)
void MSWUpdateStyle(long flagsOld, long exflagsOld);
#if wxABI_VERSION >= 20805
// Helper for getting an appropriate theme style for the application. Unnecessary in
// 2.9 and above.
wxBorder GetThemedBorderStyle() const;
#endif
// translate wxWidgets coords into Windows ones suitable to be passed to
// ::CreateWindow()
//
// returns true if non default coords are returned, false otherwise
bool MSWGetCreateWindowCoords(const wxPoint& pos,
const wxSize& size,
int& x, int& y,
int& w, int& h) const;
// get the HWND to be used as parent of this window with CreateWindow()
virtual WXHWND MSWGetParent() const;
// creates the window of specified Windows class with given style, extended
// style, title and geometry (default values
//
// returns true if the window has been created, false if creation failed
bool MSWCreate(const wxChar *wclass,
const wxChar *title = NULL,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
WXDWORD style = 0,
WXDWORD exendedStyle = 0);
virtual bool MSWCommand(WXUINT param, WXWORD id);
#ifndef __WXUNIVERSAL__
// Create an appropriate wxWindow from a HWND
virtual wxWindow* CreateWindowFromHWND(wxWindow* parent, WXHWND hWnd);
// Make sure the window style reflects the HWND style (roughly)
virtual void AdoptAttributesFromHWND();
#endif // __WXUNIVERSAL__
// Setup background and foreground colours correctly
virtual void SetupColours();
// ------------------------------------------------------------------------
// 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 *id, WXHWND *hwnd, WXWORD *cmd);
void UnpackActivate(WXWPARAM wParam, WXLPARAM lParam,
WXWORD *state, WXWORD *minimized, WXHWND *hwnd);
void UnpackScroll(WXWPARAM wParam, WXLPARAM lParam,
WXWORD *code, WXWORD *pos, WXHWND *hwnd);
void UnpackCtlColor(WXWPARAM wParam, WXLPARAM lParam,
WXHDC *hdc, WXHWND *hwnd);
void UnpackMenuSelect(WXWPARAM wParam, WXLPARAM lParam,
WXWORD *item, WXWORD *flags, WXHMENU *hmenu);
// ------------------------------------------------------------------------
// internal handlers for MSW messages: all handlers return a boolean value:
// true means that the handler processed the event and false that it didn't
// ------------------------------------------------------------------------
// there are several cases where we have virtual functions for Windows
// message processing: this is because these messages often require to be
// processed in a different manner in the derived classes. For all other
// messages, however, we do *not* have corresponding MSWOnXXX() function
// and if the derived class wants to process them, it should override
// MSWWindowProc() directly.
// scroll event (both horizontal and vertical)
virtual bool MSWOnScroll(int orientation, WXWORD nSBCode,
WXWORD pos, WXHWND control);
// child control notifications
virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
// owner-drawn controls need to process these messages
virtual bool MSWOnDrawItem(int id, WXDRAWITEMSTRUCT *item);
virtual bool MSWOnMeasureItem(int id, WXMEASUREITEMSTRUCT *item);
// the rest are not virtual
bool HandleCreate(WXLPCREATESTRUCT cs, bool *mayCreate);
bool HandleInitDialog(WXHWND hWndFocus);
bool HandleDestroy();
bool HandlePaint();
bool HandlePrintClient(WXHDC hDC);
bool HandleEraseBkgnd(WXHDC hDC);
bool HandleMinimize();
bool HandleMaximize();
bool HandleSize(int x, int y, WXUINT flag);
bool HandleSizing(wxRect& rect);
bool HandleGetMinMaxInfo(void *mmInfo);
bool HandleShow(bool show, int status);
bool HandleActivate(int flag, bool minimized, WXHWND activate);
bool HandleCommand(WXWORD id, WXWORD cmd, WXHWND control);
bool HandleCtlColor(WXHBRUSH *hBrush, WXHDC hdc, WXHWND hWnd);
bool HandlePaletteChanged(WXHWND hWndPalChange);
bool HandleQueryNewPalette();
bool HandleSysColorChange();
bool HandleDisplayChange();
bool HandleCaptureChanged(WXHWND gainedCapture);
virtual bool HandleSettingChange(WXWPARAM wParam, WXLPARAM lParam);
bool HandleQueryEndSession(long logOff, bool *mayEnd);
bool HandleEndSession(bool endSession, long logOff);
bool HandleSetFocus(WXHWND wnd);
bool HandleKillFocus(WXHWND wnd);
bool HandleDropFiles(WXWPARAM wParam);
bool HandleMouseEvent(WXUINT msg, int x, int y, WXUINT flags);
bool HandleMouseMove(int x, int y, WXUINT flags);
bool HandleMouseWheel(WXWPARAM wParam, WXLPARAM lParam);
bool HandleChar(WXWPARAM wParam, WXLPARAM lParam, bool isASCII = false);
bool HandleKeyDown(WXWPARAM wParam, WXLPARAM lParam);
bool HandleKeyUp(WXWPARAM wParam, WXLPARAM lParam);
#if wxUSE_ACCEL
bool HandleHotKey(WXWPARAM wParam, WXLPARAM lParam);
#endif
#ifdef __WIN32__
int HandleMenuChar(int chAccel, WXLPARAM lParam);
#endif
// Create and process a clipboard event specified by type.
bool HandleClipboardEvent( WXUINT nMsg );
bool HandleQueryDragIcon(WXHICON *hIcon);
bool HandleSetCursor(WXHWND hWnd, short nHitTest, int mouseMsg);
bool HandlePower(WXWPARAM wParam, WXLPARAM lParam, bool *vetoed);
// Window procedure
virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
// Calls an appropriate default window procedure
virtual WXLRESULT MSWDefWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
// message processing helpers
// return false if the message shouldn't be translated/preprocessed but
// dispatched normally
virtual bool MSWShouldPreProcessMessage(WXMSG* pMsg);
// return true if the message was preprocessed and shouldn't be dispatched
virtual bool MSWProcessMessage(WXMSG* pMsg);
// return true if the message was translated and shouldn't be dispatched
virtual bool MSWTranslateMessage(WXMSG* pMsg);
// called when the window is about to be destroyed
virtual void MSWDestroyWindow();
// this function should return the brush to paint the children controls
// background or 0 if this window doesn't impose any particular background
// on its children
//
// the base class version returns a solid brush if we have a non default
// background colour or 0 otherwise
virtual WXHBRUSH MSWGetBgBrushForChild(WXHDC hDC, WXHWND hWnd);
// return the background brush to use for painting the given window by
// quering the parent windows via their MSWGetBgBrushForChild() recursively
//
// hWndToPaint is normally NULL meaning this window itself, but it can also
// be a child of this window which is used by the static box and could be
// potentially useful for other transparent controls
WXHBRUSH MSWGetBgBrush(WXHDC hDC, WXHWND hWndToPaint = NULL);
// gives the parent the possibility to draw its children background, e.g.
// this is used by wxNotebook to do it using DrawThemeBackground()
//
// return true if background was drawn, false otherwise
virtual bool MSWPrintChild(WXHDC WXUNUSED(hDC), wxWindow * WXUNUSED(child))
{
return false;
}
// some controls (e.g. wxListBox) need to set the return value themselves
//
// return true to let parent handle it if we don't, false otherwise
virtual bool MSWShouldPropagatePrintChild()
{
return true;
}
// Responds to colour changes: passes event on to children.
void OnSysColourChanged(wxSysColourChangedEvent& event);
// initialize various fields of wxMouseEvent (common part of MSWOnMouseXXX)
void InitMouseEvent(wxMouseEvent& event, int x, int y, WXUINT flags);
// check if mouse is in the window
bool IsMouseInWindow() const;
// check if a native double-buffering applies for this window
virtual bool IsDoubleBuffered() const;
#if wxABI_VERSION >= 20808
void SetDoubleBuffered(bool on);
#endif
// synthesize a wxEVT_LEAVE_WINDOW event and set m_mouseInWindow to false
void GenerateMouseLeave();
// virtual function for implementing internal idle
// behaviour
virtual void OnInternalIdle();
protected:
#if wxUSE_MENUS_NATIVE
virtual bool DoPopupMenu( wxMenu *menu, int x, int y );
#endif // wxUSE_MENUS_NATIVE
// the window handle
WXHWND m_hWnd;
// the old window proc (we subclass all windows)
WXFARPROC m_oldWndProc;
// additional (MSW specific) flags
bool m_mouseInWindow:1;
bool m_lastKeydownProcessed:1;
// the size of one page for scrolling
int m_xThumbSize;
int m_yThumbSize;
// implement the base class pure virtuals
virtual void DoClientToScreen( int *x, int *y ) const;
virtual void DoScreenToClient( int *x, int *y ) const;
virtual void DoGetPosition( int *x, int *y ) const;
virtual void DoGetSize( int *width, int *height ) const;
virtual void DoGetClientSize( int *width, int *height ) const;
virtual void DoSetSize(int x, int y,
int width, int height,
int sizeFlags = wxSIZE_AUTO);
virtual void DoSetClientSize(int width, int height);
virtual void DoCaptureMouse();
virtual void DoReleaseMouse();
// this simply moves/resizes the given HWND which is supposed to be our
// sibling (this is useful for controls which are composite at MSW level
// and for which DoMoveWindow() is not enough)
//
// returns true if the window move was deferred, false if it was moved
// immediately (no error return)
bool DoMoveSibling(WXHWND hwnd, int x, int y, int width, int height);
// move the window to the specified location and resize it: this is called
// from both DoSetSize() and DoSetClientSize() and would usually just call
// ::MoveWindow() except for composite controls which will want to arrange
// themselves inside the given rectangle
virtual void DoMoveWindow(int x, int y, int width, int height);
#if wxUSE_TOOLTIPS
virtual void DoSetToolTip( wxToolTip *tip );
// process TTN_NEEDTEXT message properly (i.e. fixing the bugs in
// comctl32.dll in our code -- see the function body for more info)
bool HandleTooltipNotify(WXUINT code,
WXLPARAM lParam,
const wxString& ttip);
#endif // wxUSE_TOOLTIPS
// the helper functions used by HandleChar/KeyXXX methods
wxKeyEvent CreateKeyEvent(wxEventType evType, int id,
WXLPARAM lParam = 0, WXWPARAM wParam = 0) const;
// default OnEraseBackground() implementation, return true if we did erase
// the background, false otherwise (i.e. the system should erase it)
bool DoEraseBackground(WXHDC hDC);
// generate WM_CHANGEUISTATE if it's needed for the OS we're running under
//
// action should be one of the UIS_XXX constants
// state should be one or more of the UISF_XXX constants
// if action == UIS_INITIALIZE then it doesn't seem to matter what we use
// for state as the system will decide for us what needs to be set
void MSWUpdateUIState(int action, int state = 0);
private:
// common part of all ctors
void Init();
// the (non-virtual) handlers for the events
bool HandleMove(int x, int y);
bool HandleMoving(wxRect& rect);
bool HandleJoystickEvent(WXUINT msg, int x, int y, WXUINT flags);
bool HandleNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
// list of disabled children before last call to our Disable()
wxWindowList *m_childrenDisabled;
// number of calls to Freeze() minus number of calls to Thaw()
unsigned int m_frozenness;
// current defer window position operation handle (may be NULL)
WXHANDLE m_hDWP;
protected:
// When deferred positioning is done these hold the pending changes, and
// are used for the default values if another size/pos changes is done on
// this window before the group of deferred changes is completed.
wxPoint m_pendingPosition;
wxSize m_pendingSize;
private:
#ifdef __POCKETPC__
bool m_contextMenuEnabled;
#endif
DECLARE_DYNAMIC_CLASS(wxWindowMSW)
DECLARE_NO_COPY_CLASS(wxWindowMSW)
DECLARE_EVENT_TABLE()
};
// ----------------------------------------------------------------------------
// inline functions
// ----------------------------------------------------------------------------
#if WXWIN_COMPATIBILITY_2_4
inline bool wxWindowMSW::GetUseCtl3D() const { return false; }
inline bool wxWindowMSW::GetTransparentBackground() const { return false; }
inline void wxWindowMSW::SetTransparent(bool WXUNUSED(t)) { }
#endif // WXWIN_COMPATIBILITY_2_4
// ---------------------------------------------------------------------------
// global functions
// ---------------------------------------------------------------------------
// kbd code translation
WXDLLEXPORT int wxCharCodeMSWToWX(int keySym, WXLPARAM lParam = 0);
WXDLLEXPORT WXWORD wxCharCodeWXToMSW(int id, bool *IsVirtual = NULL);
// window creation helper class: before creating a new HWND, instantiate an
// object of this class on stack - this allows to process the messages sent to
// the window even before CreateWindow() returns
class wxWindowCreationHook
{
public:
wxWindowCreationHook(wxWindowMSW *winBeingCreated);
~wxWindowCreationHook();
};
// ----------------------------------------------------------------------------
// global objects
// ----------------------------------------------------------------------------
// notice that this hash must be defined after wxWindow declaration as it
// needs to "see" its dtor and not just forward declaration
#include "wx/hash.h"
// pseudo-template HWND <-> wxWindow hash table
#if WXWIN_COMPATIBILITY_2_4
WX_DECLARE_HASH(wxWindow, wxWindowList, wxWinHashTable);
#else
WX_DECLARE_HASH(wxWindowMSW, wxWindowList, wxWinHashTable);
#endif
extern wxWinHashTable *wxWinHandleHash;
#endif // _WX_WINDOW_H_