wxWidgets/include/wx/msw/window.h
2001-09-18 22:36:18 +00:00

468 lines
17 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/msw/window.h
// Purpose: wxWindow 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: $Id$
// Copyright: (c) Julian Smart and Markus Holzem
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_WINDOW_H_
#define _WX_WINDOW_H_
// ---------------------------------------------------------------------------
// headers
// ---------------------------------------------------------------------------
#ifdef __GNUG__
#pragma interface "window.h"
#endif
// [at least] some version of Windows send extra mouse move messages after
// a mouse click or a key press - to temporarily fix this problem, set the
// define below to 1
//
// a better solution should be found later...
#define wxUSE_MOUSEEVENT_HACK 0
// ---------------------------------------------------------------------------
// constants
// ---------------------------------------------------------------------------
// FIXME does anybody use those? they're unused by wxWindows...
enum
{
wxKEY_SHIFT = 1,
wxKEY_CTRL = 2
};
// ---------------------------------------------------------------------------
// wxWindow declaration for MSW
// ---------------------------------------------------------------------------
class WXDLLEXPORT wxWindowMSW : public wxWindowBase
{
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 SetTitle( const wxString& title);
virtual wxString GetTitle() const;
virtual void Raise();
virtual void Lower();
virtual bool Show( bool show = TRUE );
virtual bool Enable( bool enable = TRUE );
virtual void SetFocus();
virtual bool Reparent(wxWindowBase *newParent);
virtual void WarpPointer(int x, int y);
virtual void CaptureMouse();
virtual void ReleaseMouse();
virtual void Refresh( bool eraseBackground = TRUE,
const wxRect *rect = (const wxRect *) NULL );
virtual void Update();
virtual void Clear();
virtual void Freeze();
virtual void Thaw();
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;
#if wxUSE_MENUS_NATIVE
virtual bool DoPopupMenu( wxMenu *menu, int x, int y );
#endif // wxUSE_MENUS_NATIVE
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);
#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
// Set/get scroll attributes
virtual void SetScrollRange(int orient, int range, bool refresh = TRUE);
virtual void SetScrollPage(int orient, int page, bool refresh = TRUE);
virtual int OldGetScrollRange(int orient) const;
virtual int GetScrollPage(int orient) const;
// event handlers
// Handle a control command
virtual void OnCommand(wxWindow& win, wxCommandEvent& event);
// Override to define new behaviour for default action (e.g. double
// clicking on a listbox)
virtual void OnDefaultAction(wxControl * WXUNUSED(initiatingItem)) { }
#endif // WXWIN_COMPATIBILITY
#if wxUSE_CARET && WXWIN_COMPATIBILITY
// caret manipulation (old MSW only functions, see wxCaret class for the
// new API)
void CreateCaret(int w, int h);
void CreateCaret(const wxBitmap *bitmap);
void DestroyCaret();
void ShowCaret(bool show);
void SetCaretPos(int x, int y);
void GetCaretPos(int *x, int *y) const;
#endif // wxUSE_CARET
#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__
// a MSW only function which sends a size event to the window using its
// current size - this has an effect of refreshing the window layout
/*
FUNCTION IS NOW A MEMBER OF wxFrame - gt
void SendSizeEvent();
*/
// implementation from now on
// --------------------------
// simple accessors
// ----------------
WXHWND GetHWND() const { return m_hWnd; }
void SetHWND(WXHWND hWnd) { m_hWnd = hWnd; }
virtual WXWidget GetHandle() const { return GetHWND(); }
bool GetUseCtl3D() const { return m_useCtl3D; }
bool GetTransparentBackground() const { return m_backgroundTransparent; }
void SetTransparent(bool t = TRUE) { m_backgroundTransparent = t; }
// event handlers
// --------------
void OnSetFocus(wxFocusEvent& event);
void OnEraseBackground(wxEraseEvent& event);
void OnIdle(wxIdleEvent& event);
void OnPaint(wxPaintEvent& event);
public:
// For implementation purposes - sometimes decorations make the client area
// smaller
virtual wxPoint GetClientAreaOrigin() const;
// Windows subclassing
void SubclassWin(WXHWND hWnd);
void UnsubclassWin();
WXFARPROC MSWGetOldWndProc() const { return m_oldWndProc; }
void MSWSetOldWndProc(WXFARPROC proc) { m_oldWndProc = proc; }
wxWindow *FindItem(long id) const;
wxWindow *FindItemByHWND(WXHWND hWnd, bool controlOnly = FALSE) const;
// Make a Windows extended style from the given wxWindows window style
static WXDWORD MakeExtendedStyle(long style,
bool eliminateBorders = FALSE);
// Determine whether 3D effects are wanted
WXDWORD Determine3DEffects(WXDWORD defaultBorderStyle, bool *want3D) const;
// MSW only: TRUE if this control is part of the main control
virtual bool ContainsHWND(WXHWND WXUNUSED(hWnd)) const { return FALSE; };
// returns TRUE if the window has been created
bool MSWCreate(int id,
wxWindow *parent,
const wxChar *wclass,
wxWindow *wx_win,
const wxChar *title,
int x, int y, int width, int height,
WXDWORD style,
const wxChar *dialog_template = NULL,
WXDWORD exendedStyle = 0);
virtual bool MSWCommand(WXUINT param, WXWORD id);
#if WXWIN_COMPATIBILITY
wxObject *GetChild(int number) const;
virtual void MSWDeviceToLogical(float *x, float *y) const;
#endif // WXWIN_COMPATIBILITY
#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,
WXWORD *nCtlColor, 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
#ifdef __WIN95__
virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
#endif // __WIN95__
// 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 HandleEraseBkgnd(WXHDC pDC);
bool HandleMinimize();
bool HandleMaximize();
bool HandleSize(int x, int y, WXUINT flag);
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 HandleSysCommand(WXWPARAM wParam, WXLPARAM lParam);
bool HandleCtlColor(WXHBRUSH *hBrush,
WXHDC hdc,
WXHWND hWnd,
WXUINT nCtlColor,
WXUINT message,
WXWPARAM wParam,
WXLPARAM lParam);
bool HandlePaletteChanged(WXHWND hWndPalChange);
bool HandleQueryNewPalette();
bool HandleSysColorChange();
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);
bool HandleQueryDragIcon(WXHICON *hIcon);
bool HandleSetCursor(WXHWND hWnd, short nHitTest, int mouseMsg);
// Window procedure
virtual long MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
// Calls an appropriate default window procedure
virtual long 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();
// Detach "Window" menu from menu bar so it doesn't get deleted
void MSWDetachWindowMenu();
// this function should return the brush to paint the window background
// with or 0 for the default brush
virtual WXHBRUSH OnCtlColor(WXHDC hDC,
WXHWND hWnd,
WXUINT nCtlColor,
WXUINT message,
WXWPARAM wParam,
WXLPARAM lParam);
#if WXWIN_COMPATIBILITY
void SetShowing(bool show) { (void)Show(show); }
bool IsUserEnabled() const { return IsEnabled(); }
#endif // WXWIN_COMPATIBILITY
// 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;
protected:
// the window handle
WXHWND m_hWnd;
// the old window proc (we subclass all windows)
WXFARPROC m_oldWndProc;
// additional (MSW specific) flags
bool m_useCtl3D:1; // Using CTL3D for this control
bool m_backgroundTransparent:1;
bool m_mouseInWindow:1;
bool m_doubleClickAllowed:1;
// the size of one page for scrolling
int m_xThumbSize;
int m_yThumbSize;
#if wxUSE_MOUSEEVENT_HACK
// the coordinates of the last mouse event and the type of it
long m_lastMouseX,
m_lastMouseY;
int m_lastMouseEvent;
#endif // wxUSE_MOUSEEVENT_HACK
WXHMENU m_hMenu; // Menu, if any
// the return value of WM_GETDLGCODE handler
long m_lDlgCode;
// 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);
// 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 );
#endif // wxUSE_TOOLTIPS
private:
// common part of all ctors
void Init();
// the (non-virtual) handlers for the events
bool HandleMove(int x, int y);
bool HandleJoystickEvent(WXUINT msg, int x, int y, WXUINT flags);
#ifdef __WIN95__
bool HandleNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
#endif // __WIN95__
// the helper functions used by HandleChar/KeyXXX methods
wxKeyEvent CreateKeyEvent(wxEventType evType, int id, WXLPARAM lp) const;
DECLARE_DYNAMIC_CLASS(wxWindowMSW)
DECLARE_NO_COPY_CLASS(wxWindowMSW)
DECLARE_EVENT_TABLE()
};
// ---------------------------------------------------------------------------
// global functions
// ---------------------------------------------------------------------------
// kbd code translation
WXDLLEXPORT int wxCharCodeMSWToWX(int keySym);
WXDLLEXPORT int wxCharCodeWXToMSW(int id, bool *IsVirtual);
#endif
// _WX_WINDOW_H_