/////////////////////////////////////////////////////////////////////////////
// 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
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_WINDOW_H_
#define _WX_WINDOW_H_
#include "wx/settings.h" // solely for wxSystemColour
class WXDLLIMPEXP_FWD_CORE wxButton;
// if this is set to 1, we use deferred window sizing to reduce flicker when
// resizing complicated window hierarchies, but this can in theory result in
// different behaviour than the old code so we keep the possibility to use it
// by setting this to 0 (in the future this should be removed completely)
#define wxUSE_DEFERRED_SIZING 1
// ---------------------------------------------------------------------------
// wxWindow declaration for MSW
// ---------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxWindowMSW : public wxWindowBase
{
friend class wxSpinCtrl;
friend class wxSlider;
friend class wxRadioBox;
public:
wxWindowMSW() { Init(); }
wxWindowMSW(wxWindow *parent,
wxWindowID id,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = 0,
const wxString& name = wxASCII_STR(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 = wxASCII_STR(wxPanelNameStr))
{
return CreateUsingMSWClass(GetMSWClassName(style),
parent, id, pos, size, style, name);
}
// Non-portable, MSW-specific Create() variant allowing to create the
// window with a custom Windows class name. This can be useful to assign a
// custom Windows class, that can be recognized from the outside of the
// application, for windows of specific type.
bool CreateUsingMSWClass(const wxChar* classname,
wxWindow *parent,
wxWindowID id,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = 0,
const wxString& name = wxASCII_STR(wxPanelNameStr));
// implement base class pure virtuals
virtual void SetLabel(const wxString& label) wxOVERRIDE;
virtual wxString GetLabel() const wxOVERRIDE;
virtual void Raise() wxOVERRIDE;
virtual void Lower() wxOVERRIDE;
#if wxUSE_DEFERRED_SIZING
virtual bool BeginRepositioningChildren() wxOVERRIDE;
virtual void EndRepositioningChildren() wxOVERRIDE;
#endif // wxUSE_DEFERRED_SIZING
virtual bool Show(bool show = true) wxOVERRIDE;
virtual bool ShowWithEffect(wxShowEffect effect,
unsigned timeout = 0) wxOVERRIDE
{
return MSWShowWithEffect(true, effect, timeout);
}
virtual bool HideWithEffect(wxShowEffect effect,
unsigned timeout = 0) wxOVERRIDE
{
return MSWShowWithEffect(false, effect, timeout);
}
virtual void SetFocus() wxOVERRIDE;
virtual void SetFocusFromKbd() wxOVERRIDE;
virtual bool Reparent(wxWindowBase *newParent) wxOVERRIDE;
virtual wxSize GetDPI() const wxOVERRIDE;
virtual double GetDPIScaleFactor() const wxOVERRIDE;
virtual wxSize GetWindowBorderSize() const wxOVERRIDE;
virtual void WarpPointer(int x, int y) wxOVERRIDE;
virtual bool EnableTouchEvents(int eventsMask) wxOVERRIDE;
virtual void Refresh( bool eraseBackground = true,
const wxRect *rect = (const wxRect *) NULL ) wxOVERRIDE;
virtual void Update() wxOVERRIDE;
virtual void SetWindowStyleFlag(long style) wxOVERRIDE;
virtual void SetExtraStyle(long exStyle) wxOVERRIDE;
virtual bool SetCursor( const wxCursor &cursor ) wxOVERRIDE;
virtual bool SetFont( const wxFont &font ) wxOVERRIDE;
virtual int GetCharHeight() const wxOVERRIDE;
virtual int GetCharWidth() const wxOVERRIDE;
virtual void SetScrollbar( int orient, int pos, int thumbVisible,
int range, bool refresh = true ) wxOVERRIDE;
virtual void SetScrollPos( int orient, int pos, bool refresh = true ) wxOVERRIDE;
virtual int GetScrollPos( int orient ) const wxOVERRIDE;
virtual int GetScrollThumb( int orient ) const wxOVERRIDE;
virtual int GetScrollRange( int orient ) const wxOVERRIDE;
virtual void ScrollWindow( int dx, int dy,
const wxRect* rect = NULL ) wxOVERRIDE;
virtual bool ScrollLines(int lines) wxOVERRIDE;
virtual bool ScrollPages(int pages) wxOVERRIDE;
virtual void SetLayoutDirection(wxLayoutDirection dir) wxOVERRIDE;
virtual wxLayoutDirection GetLayoutDirection() const wxOVERRIDE;
virtual wxCoord AdjustForLayoutDirection(wxCoord x,
wxCoord width,
wxCoord widthTotal) const wxOVERRIDE;
virtual void SetId(wxWindowID winid) wxOVERRIDE;
#if wxUSE_DRAG_AND_DROP
virtual void SetDropTarget( wxDropTarget *dropTarget ) wxOVERRIDE;
// Accept files for dragging
virtual void DragAcceptFiles(bool accept) wxOVERRIDE;
#endif // wxUSE_DRAG_AND_DROP
#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) wxOVERRIDE;
virtual bool UnregisterHotKey(int hotkeyId) wxOVERRIDE;
#endif // wxUSE_HOTKEY
// window handle stuff
// -------------------
WXHWND GetHWND() const { return m_hWnd; }
void SetHWND(WXHWND hWnd) { m_hWnd = hWnd; }
virtual WXWidget GetHandle() const wxOVERRIDE { return GetHWND(); }
void AssociateHandle(WXWidget handle) wxOVERRIDE;
void DissociateHandle() wxOVERRIDE;
// returns the handle of the native window to focus when this wxWindow gets
// focus (i.e. in composite windows: by default, this is just the HWND for
// this window itself, but it can be overridden to return something
// different for composite controls
virtual WXHWND MSWGetFocusHWND() const { return GetHWND(); }
// does this window have deferred position and/or size?
bool IsSizeDeferred() const;
// these functions allow to register a global handler for the given Windows
// message: it will be called from MSWWindowProc() of any window which gets
// this event if it's not processed before (i.e. unlike a hook procedure it
// does not override the normal processing)
//
// notice that if you want to process a message for a given window only you
// should override its MSWWindowProc() instead
// type of the handler: it is called with the message parameters (except
// that the window object is passed instead of window handle) and should
// return true if it handled the message or false if it should be passed to
// DefWindowProc()
typedef bool (*MSWMessageHandler)(wxWindowMSW *win,
WXUINT nMsg,
WXWPARAM wParam,
WXLPARAM lParam);
// install a handler, shouldn't be called more than one for the same message
static bool MSWRegisterMessageHandler(int msg, MSWMessageHandler handler);
// unregister a previously registered handler
static void MSWUnregisterMessageHandler(int msg, MSWMessageHandler handler);
// implementation from now on
// ==========================
// event handlers
// --------------
void OnPaint(wxPaintEvent& event);
public:
// Windows subclassing
void SubclassWin(WXHWND hWnd);
void UnsubclassWin();
WXWNDPROC MSWGetOldWndProc() const { return m_oldWndProc; }
void MSWSetOldWndProc(WXWNDPROC 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, WXHWND hWnd = NULL) 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);
// get the HWND to be used as parent of this window with CreateWindow()
virtual WXHWND MSWGetParent() const;
// Return the name of the Win32 class that should be used by this wxWindow
// object, taking into account wxFULL_REPAINT_ON_RESIZE style (if it's not
// specified, the wxApp::GetNoRedrawClassSuffix()-suffixed version of the
// class is used).
static const wxChar *GetMSWClassName(long style);
// 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 HandleEnterSizeMove();
bool HandleExitSizeMove();
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(wxMouseWheelAxis axis,
WXWPARAM wParam, WXLPARAM lParam);
// Common gesture event initialization, returns true if it is the initial
// event (GF_BEGIN set in flags), false otherwise.
bool InitGestureEvent(wxGestureEvent& event, const wxPoint& pt, WXDWORD flags);
bool HandlePanGesture(const wxPoint& pt, WXDWORD flags);
bool HandleZoomGesture(const wxPoint& pt, WXDWORD fingerDistance, WXDWORD flags);
bool HandleRotateGesture(const wxPoint& pt, WXDWORD angleArgument, WXDWORD flags);
bool HandleTwoFingerTap(const wxPoint& pt, WXDWORD flags);
bool HandlePressAndTap(const wxPoint& pt, WXDWORD flags);
bool HandleChar(WXWPARAM wParam, WXLPARAM lParam);
bool HandleKeyDown(WXWPARAM wParam, WXLPARAM lParam);
bool HandleKeyUp(WXWPARAM wParam, WXLPARAM lParam);
#if wxUSE_HOTKEY
bool HandleHotKey(WXWPARAM wParam, WXLPARAM lParam);
#endif
int HandleMenuChar(int chAccel, WXLPARAM lParam);
// 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);
// The main body of common window proc for all wxWindow objects. It tries
// to handle the given message and returns true if it was handled (the
// appropriate return value is then put in result, which must be non-NULL)
// or false if it wasn't.
//
// This function should be overridden in any new code instead of
// MSWWindowProc() even if currently most of the code overrides
// MSWWindowProc() as it had been written before this function was added.
virtual bool MSWHandleMessage(WXLRESULT *result,
WXUINT message,
WXWPARAM wParam,
WXLPARAM lParam);
// Common Window procedure for all wxWindow objects: forwards to
// MSWHandleMessage() and MSWDefWindowProc() if the message wasn't handled.
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();
// Functions dealing with painting the window background. The derived
// classes should normally only need to reimplement MSWGetBgBrush() if they
// need to use a non-solid brush for erasing their background. This
// function is called by MSWGetBgBrushForChild() which only exists for the
// weird wxToolBar case and MSWGetBgBrushForChild() itself is used by
// MSWGetBgBrush() to actually find the right brush to use.
// Adjust the origin for the brush returned by MSWGetBgBrushForChild().
//
// This needs to be overridden for scrolled windows to ensure that the
// scrolling of their associated DC is taken into account.
//
// Both parameters must be non-NULL.
virtual void MSWAdjustBrushOrg(int* WXUNUSED(xOrg),
int* WXUNUSED(yOrg)) const
{
}
// The brush returned from here must remain valid at least until the next
// event loop iteration. Returning 0, as is done by default, indicates
// there is no custom background brush.
virtual WXHBRUSH MSWGetCustomBgBrush() { return NULL; }
// 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 hDC parameter is the DC background will be drawn on, it can be used
// to call SetBrushOrgEx() on it if the returned brush is a bitmap one
//
// child parameter is never NULL, it can be this window itself or one of
// its (grand)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, wxWindowMSW *child);
// return the background brush to use for painting the given window by
// querying the parent windows via MSWGetBgBrushForChild() recursively
WXHBRUSH MSWGetBgBrush(WXHDC hDC);
enum MSWThemeColour
{
ThemeColourText = 0,
ThemeColourBackground,
ThemeColourBorder
};
// returns a specific theme colour, or if that is not possible then
// wxSystemSettings::GetColour(fallback)
wxColour MSWGetThemeColour(const wchar_t *themeName,
int themePart,
int themeState,
MSWThemeColour themeColour,
wxSystemColour fallback) const;
// 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;
}
// This should be overridden to return true for the controls which have
// themed background that should through their children. Currently only
// wxNotebook uses this.
//
// The base class version already returns true if we have a solid
// background colour that should be propagated to our children.
virtual bool MSWHasInheritableBackground() const
{
return InheritsBackgroundColour();
}
#if !defined(__WXUNIVERSAL__)
#define wxHAS_MSW_BACKGROUND_ERASE_HOOK
#endif
#ifdef wxHAS_MSW_BACKGROUND_ERASE_HOOK
// allows the child to hook into its parent WM_ERASEBKGND processing: call
// MSWSetEraseBgHook() with a non-NULL window to make parent call
// MSWEraseBgHook() on this window (don't forget to reset it to NULL
// afterwards)
//
// this hack is used by wxToolBar, see comments there
void MSWSetEraseBgHook(wxWindow *child);
// return true if WM_ERASEBKGND is currently hooked
bool MSWHasEraseBgHook() const;
// called when the window on which MSWSetEraseBgHook() had been called
// receives WM_ERASEBKGND
virtual bool MSWEraseBgHook(WXHDC WXUNUSED(hDC)) { return false; }
#endif // wxHAS_MSW_BACKGROUND_ERASE_HOOK
// common part of Show/HideWithEffect()
bool MSWShowWithEffect(bool show,
wxShowEffect effect,
unsigned timeout);
// 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;
virtual void SetDoubleBuffered(bool on) wxOVERRIDE;
virtual bool IsDoubleBuffered() const wxOVERRIDE;
// synthesize a wxEVT_LEAVE_WINDOW event and set m_mouseInWindow to false
void GenerateMouseLeave();
// virtual function for implementing internal idle
// behaviour
virtual void OnInternalIdle() wxOVERRIDE;
#if wxUSE_MENUS && !defined(__WXUNIVERSAL__)
virtual bool HandleMenuSelect(WXWORD nItem, WXWORD nFlags, WXHMENU hMenu);
// handle WM_(UN)INITMENUPOPUP message to generate wxEVT_MENU_OPEN/CLOSE
bool HandleMenuPopup(wxEventType evtType, WXHMENU hMenu);
// Command part of HandleMenuPopup() and HandleExitMenuLoop().
virtual bool DoSendMenuOpenCloseEvent(wxEventType evtType, wxMenu* menu);
// Find the menu corresponding to the given handle.
virtual wxMenu* MSWFindMenuFromHMENU(WXHMENU hMenu);
#endif // wxUSE_MENUS && !__WXUNIVERSAL__
// Return the default button for the TLW containing this window or NULL if
// none.
static wxButton* MSWGetDefaultButtonFor(wxWindow* win);
// Simulate a click on the given button if it is non-null, enabled and
// shown.
//
// Return true if the button was clicked, false otherwise.
static bool MSWClickButtonIfPossible(wxButton* btn);
// This method is used for handling wxRadioButton-related complications,
// see wxRadioButton::SetValue().
//
// It should be overridden by all classes storing the "last focused"
// window to avoid focusing an unset radio button when regaining focus.
virtual void WXSetPendingFocus(wxWindow* WXUNUSED(win)) {}
// Called from WM_DPICHANGED handler for all windows to let them update
// any sizes and fonts used internally when the DPI changes and generate
// wxDPIChangedEvent to let the user code do the same thing as well.
//
// Return true if the event was processed, false otherwise.
bool MSWUpdateOnDPIChange(const wxSize& oldDPI, const wxSize& newDPI);
protected:
virtual void WXAdjustFontToOwnPPI(wxFont& font) const wxOVERRIDE;
// Called from MSWUpdateOnDPIChange() specifically to update the control
// font, as this may need to be done differently for some specific native
// controls. The default version updates m_font of this window.
virtual void MSWUpdateFontOnDPIChange(const wxSize& newDPI);
// this allows you to implement standard control borders without
// repeating the code in different classes that are not derived from
// wxControl
virtual wxBorder GetDefaultBorderForControl() const wxOVERRIDE;
// choose the default border for this window
virtual wxBorder GetDefaultBorder() const wxOVERRIDE;
// Translate wxBORDER_THEME (and other border styles if necessary to the value
// that makes most sense for this Windows environment
virtual wxBorder TranslateBorder(wxBorder border) const;
#if wxUSE_MENUS_NATIVE
virtual bool DoPopupMenu( wxMenu *menu, int x, int y ) wxOVERRIDE;
#endif // wxUSE_MENUS_NATIVE
// the window handle
WXHWND m_hWnd;
// the old window proc (we subclass all windows)
WXWNDPROC 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 DoGetTextExtent(const wxString& string,
int *x, int *y,
int *descent = NULL,
int *externalLeading = NULL,
const wxFont *font = NULL) const wxOVERRIDE;
static void MSWDoClientToScreen( WXHWND hWnd, int *x, int *y );
static void MSWDoScreenToClient( WXHWND hWnd, int *x, int *y );
virtual void DoClientToScreen( int *x, int *y ) const wxOVERRIDE;
virtual void DoScreenToClient( int *x, int *y ) const wxOVERRIDE;
virtual void DoGetPosition( int *x, int *y ) const wxOVERRIDE;
virtual void DoGetSize( int *width, int *height ) const wxOVERRIDE;
virtual void DoGetClientSize( int *width, int *height ) const wxOVERRIDE;
virtual void DoSetSize(int x, int y,
int width, int height,
int sizeFlags = wxSIZE_AUTO) wxOVERRIDE;
virtual void DoSetClientSize(int width, int height) wxOVERRIDE;
virtual void DoCaptureMouse() wxOVERRIDE;
virtual void DoReleaseMouse() wxOVERRIDE;
virtual void DoEnable(bool enable) wxOVERRIDE;
virtual void DoFreeze() wxOVERRIDE;
virtual void DoThaw() wxOVERRIDE;
// 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) wxOVERRIDE;
#if wxUSE_TOOLTIPS
virtual void DoSetToolTip( wxToolTip *tip ) wxOVERRIDE;
// 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
// This is used by CreateKeyEvent() and also for wxEVT_CHAR[_HOOK] event
// creation. Notice that this method doesn't initialize wxKeyEvent
// m_keyCode and m_uniChar fields.
void InitAnyKeyEvent(wxKeyEvent& event,
WXWPARAM wParam,
WXLPARAM lParam) const;
// Helper functions used by HandleKeyXXX() methods and some derived
// classes, wParam and lParam have the same meaning as in WM_KEY{DOWN,UP}.
//
// NB: evType here must be wxEVT_KEY_{DOWN,UP} as wParam here contains the
// virtual key code, not character!
wxKeyEvent CreateKeyEvent(wxEventType evType,
WXWPARAM wParam,
WXLPARAM lParam = 0) const;
// Another helper for creating wxKeyEvent for wxEVT_CHAR and related types.
//
// The wParam and lParam here must come from WM_CHAR event parameters, i.e.
// wParam must be a character and not a virtual code.
wxKeyEvent CreateCharEvent(wxEventType evType,
WXWPARAM wParam,
WXLPARAM lParam) 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);
// translate wxWidgets coords into Windows ones suitable to be passed to
// ::CreateWindow(), called from MSWCreate()
virtual void MSWGetCreateWindowCoords(const wxPoint& pos,
const wxSize& size,
int& x, int& y,
int& w, int& h) const;
bool MSWEnableHWND(WXHWND hWnd, bool enable);
// Return the pointer to this window or one of its sub-controls if this ID
// and HWND combination belongs to one of them.
//
// This is used by FindItem() and is overridden in wxControl, see there.
virtual wxWindow* MSWFindItem(long WXUNUSED(id), WXHWND WXUNUSED(hWnd)) const
{
return NULL;
}
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);
#ifndef __WXUNIVERSAL__
// Call ::IsDialogMessage() if it is safe to do it (i.e. if it's not going
// to hang or do something else stupid) with the given message, return true
// if the message was handled by it.
bool MSWSafeIsDialogMessage(WXMSG* msg);
#endif // __WXUNIVERSAL__
static inline bool MSWIsPositionDirectlySupported(int x, int y)
{
// The supported coordinate intervals for various functions are:
// - MoveWindow, DeferWindowPos: [-32768, 32767] a.k.a. [SHRT_MIN, SHRT_MAX];
// - CreateWindow, CreateWindowEx: [-32768, 32554].
// CreateXXX will _sometimes_ manage to create the window at higher coordinates
// like 32580, 32684, 32710, but that was not consistent and the lowest common
// limit was 32554 (so far at least).
return (x >= SHRT_MIN && x <= 32554 && y >= SHRT_MIN && y <= 32554);
}
protected:
WXHWND MSWCreateWindowAtAnyPosition(WXDWORD exStyle, const wxChar* clName,
const wxChar* title, WXDWORD style,
int x, int y, int width, int height,
WXHWND parent, wxWindowID id);
void MSWMoveWindowToAnyPosition(WXHWND hwnd, int x, int y,
int width, int height, bool bRepaint);
#if wxUSE_DEFERRED_SIZING
// this function is called after the window was resized to its new size
virtual void MSWEndDeferWindowPos()
{
m_pendingPosition = wxDefaultPosition;
m_pendingSize = wxDefaultSize;
}
// current defer window position operation handle (may be NULL)
WXHANDLE m_hDWP;
// 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;
#endif // wxUSE_DEFERRED_SIZING
private:
wxDECLARE_DYNAMIC_CLASS(wxWindowMSW);
wxDECLARE_NO_COPY_CLASS(wxWindowMSW);
wxDECLARE_EVENT_TABLE();
};
// 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();
};
#endif // _WX_WINDOW_H_
