added CSS stylesheets support to tex2rtf

[wxWidgets.git] / src / common / wincmn.cpp

diff --git a/src/common/wincmn.cpp b/src/common/wincmn.cpp
index 864bb24f1a507c783f3a9bafebb4a505c02eb967..5922d27f4ab92cfdad82ecd993250823a98fc6ac 100644 (file)
--- a/src/common/wincmn.cpp
+++ b/src/common/wincmn.cpp
@@ -47,9 +47,10 @@
 
 #if wxUSE_CONSTRAINTS
     #include "wx/layout.h"
 
 #if wxUSE_CONSTRAINTS
     #include "wx/layout.h"

-    #include "wx/sizer.h"

 #endif // wxUSE_CONSTRAINTS
 
 #endif // wxUSE_CONSTRAINTS
 

+#include "wx/sizer.h"
+

 #if wxUSE_DRAG_AND_DROP
     #include "wx/dnd.h"
 #endif // wxUSE_DRAG_AND_DROP
 #if wxUSE_DRAG_AND_DROP
     #include "wx/dnd.h"
 #endif // wxUSE_DRAG_AND_DROP


@@ -115,10 +116,6 @@ void wxWindowBase::InitBase()
     m_isShown = FALSE;
     m_isEnabled = TRUE;
 
     m_isShown = FALSE;
     m_isEnabled = TRUE;
 

-    // no client data (yet)
-    m_clientData = NULL;
-    m_clientDataType = wxClientData_None;
-

     // the default event handler is just this window
     m_eventHandler = this;
 
     // the default event handler is just this window
     m_eventHandler = this;
 


@@ -128,16 +125,21 @@ void wxWindowBase::InitBase()
 #endif // wxUSE_VALIDATORS
 
     // use the system default colours
 #endif // wxUSE_VALIDATORS
 
     // use the system default colours

-    m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_BTNFACE);
-    m_foregroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOWTEXT);
+    m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
+    m_foregroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);

 
     // don't set the font here for wxMSW as we don't call WM_SETFONT here and
     // so the font is *not* really set - but calls to SetFont() later won't do
     // anything because m_font appears to be already set!
 #ifndef __WXMSW__
 
     // don't set the font here for wxMSW as we don't call WM_SETFONT here and
     // so the font is *not* really set - but calls to SetFont() later won't do
     // anything because m_font appears to be already set!
 #ifndef __WXMSW__

-    m_font = wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT);
+    m_font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);

 #endif // __WXMSW__
 
 #endif // __WXMSW__
 

+    // the colours/fonts are default for now
+    m_hasBgCol =
+    m_hasFgCol =
+    m_hasFont = FALSE;
+

     // no style bits
     m_exStyle =
     m_windowStyle = 0;
     // no style bits
     m_exStyle =
     m_windowStyle = 0;


@@ -150,9 +152,11 @@ void wxWindowBase::InitBase()
     // no constraints whatsoever
     m_constraints = (wxLayoutConstraints *) NULL;
     m_constraintsInvolvedIn = (wxWindowList *) NULL;
     // no constraints whatsoever
     m_constraints = (wxLayoutConstraints *) NULL;
     m_constraintsInvolvedIn = (wxWindowList *) NULL;

+#endif // wxUSE_CONSTRAINTS
+

     m_windowSizer = (wxSizer *) NULL;
     m_windowSizer = (wxSizer *) NULL;

+    m_containingSizer = (wxSizer *) NULL;

     m_autoLayout = FALSE;
     m_autoLayout = FALSE;

-#endif // wxUSE_CONSTRAINTS

 
 #if wxUSE_DRAG_AND_DROP
     m_dropTarget = (wxDropTarget *)NULL;
 
 #if wxUSE_DRAG_AND_DROP
     m_dropTarget = (wxDropTarget *)NULL;


@@ -166,6 +170,16 @@ void wxWindowBase::InitBase()
     m_caret = (wxCaret *)NULL;
 #endif // wxUSE_CARET
 
     m_caret = (wxCaret *)NULL;
 #endif // wxUSE_CARET
 

+#if wxUSE_PALETTE
+    m_hasCustomPalette = FALSE;
+#endif // wxUSE_PALETTE
+
+    m_virtualSize = wxDefaultSize;
+    m_minVirtualWidth = -1;
+    m_minVirtualHeight = -1;
+    m_maxVirtualWidth = -1;
+    m_maxVirtualHeight = -1;
+

     // Whether we're using the current theme for this window (wxGTK only for now)
     m_themeEnabled = FALSE;
 }
     // Whether we're using the current theme for this window (wxGTK only for now)
     m_themeEnabled = FALSE;
 }


@@ -213,6 +227,8 @@ bool wxWindowBase::CreateBase(wxWindowBase *parent,
 // common clean up
 wxWindowBase::~wxWindowBase()
 {
 // common clean up
 wxWindowBase::~wxWindowBase()
 {

+    wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") );
+

     // FIXME if these 2 cases result from programming errors in the user code
     //       we should probably assert here instead of silently fixing them
 
     // FIXME if these 2 cases result from programming errors in the user code
     //       we should probably assert here instead of silently fixing them
 


@@ -236,10 +252,6 @@ wxWindowBase::~wxWindowBase()
         delete m_windowValidator;
 #endif // wxUSE_VALIDATORS
 
         delete m_windowValidator;
 #endif // wxUSE_VALIDATORS
 

-    // we only delete object data, not untyped
-    if ( m_clientDataType == wxClientData_Object )
-        delete m_clientObject;
-

 #if wxUSE_CONSTRAINTS
     // Have to delete constraints/sizer FIRST otherwise sizers may try to look
     // at deleted windows as they delete themselves.
 #if wxUSE_CONSTRAINTS
     // Have to delete constraints/sizer FIRST otherwise sizers may try to look
     // at deleted windows as they delete themselves.


@@ -254,11 +266,14 @@ wxWindowBase::~wxWindowBase()
         m_constraints = NULL;
     }
 
         m_constraints = NULL;
     }
 

+#endif // wxUSE_CONSTRAINTS
+
+    if ( m_containingSizer )
+        m_containingSizer->Remove((wxWindow*)this);
+

     if ( m_windowSizer )
         delete m_windowSizer;
 
     if ( m_windowSizer )
         delete m_windowSizer;
 

-#endif // wxUSE_CONSTRAINTS
-

 #if wxUSE_DRAG_AND_DROP
     if ( m_dropTarget )
         delete m_dropTarget;
 #if wxUSE_DRAG_AND_DROP
     if ( m_dropTarget )
         delete m_dropTarget;


@@ -268,6 +283,12 @@ wxWindowBase::~wxWindowBase()
     if ( m_tooltip )
         delete m_tooltip;
 #endif // wxUSE_TOOLTIPS
     if ( m_tooltip )
         delete m_tooltip;
 #endif // wxUSE_TOOLTIPS

+
+    // reset the dangling pointer our parent window may keep to us
+    if ( m_parent && m_parent->GetDefaultItem() == this )
+    {
+        m_parent->SetDefaultItem(NULL);
+    }

 }
 
 bool wxWindowBase::Destroy()
 }
 
 bool wxWindowBase::Destroy()


@@ -392,14 +413,18 @@ void wxWindowBase::Centre(int direction)
     wxRect rect = wxGetClientDisplayRect();
     wxSize size (rect.width,rect.height);
 
     wxRect rect = wxGetClientDisplayRect();
     wxSize size (rect.width,rect.height);
 

-    if (posParent.x >= 0)  // if parent is on the main display
+    // NB: in wxMSW, negative position may not neccessary mean "out of screen",
+    //     but it may mean that the window is placed on other than the main
+    //     display. Therefore we only make sure centered window is on the main display
+    //     if the parent is at least partially present here.
+    if (posParent.x + widthParent >= 0)  // if parent is (partially) on the main display

     {
         if (xNew < 0)
             xNew = 0;
         else if (xNew+width > size.x)
             xNew = size.x-width-1;
     }
     {
         if (xNew < 0)
             xNew = 0;
         else if (xNew+width > size.x)
             xNew = size.x-width-1;
     }

-    if (posParent.y >= 0)  // if parent is on the main display
+    if (posParent.y + heightParent >= 0)  // if parent is (partially) on the main display

     {
         if (yNew+height > size.y)
             yNew = size.y-height-1;
     {
         if (yNew+height > size.y)
             yNew = size.y-height-1;


@@ -503,6 +528,40 @@ void wxWindowBase::SetSizeHints(int minW, int minH,
     m_maxHeight = maxH;
 }
 
     m_maxHeight = maxH;
 }
 

+void wxWindowBase::SetVirtualSizeHints( int minW, int minH,
+                                        int maxW, int maxH )
+{
+    m_minVirtualWidth = minW;
+    m_maxVirtualWidth = maxW;
+    m_minVirtualHeight = minH;
+    m_maxVirtualHeight = maxH;
+
+    SetVirtualSize( GetClientSize() );
+}
+
+void wxWindowBase::DoSetVirtualSize( int x, int y )
+{
+    if( m_minVirtualWidth != -1 && m_minVirtualWidth > x )   x = m_minVirtualWidth;
+    if( m_maxVirtualWidth != -1 && m_maxVirtualWidth < x )   x = m_maxVirtualWidth;
+    if( m_minVirtualHeight != -1 && m_minVirtualHeight > y ) y = m_minVirtualHeight;
+    if( m_maxVirtualHeight != -1 && m_maxVirtualHeight < y ) y = m_maxVirtualHeight;
+
+    m_virtualSize.SetWidth( x );
+    m_virtualSize.SetHeight( y );
+}
+
+wxSize wxWindowBase::DoGetVirtualSize() const
+{
+    wxSize  s( GetClientSize() );
+
+    if( m_virtualSize.GetWidth() != -1 )
+        s.SetWidth( m_virtualSize.GetWidth() );
+    if( m_virtualSize.GetHeight() != -1 )
+        s.SetHeight( m_virtualSize.GetHeight() );
+
+    return s;
+}
+

 // ----------------------------------------------------------------------------
 // show/hide/enable/disable the window
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // show/hide/enable/disable the window
 // ----------------------------------------------------------------------------


@@ -628,6 +687,41 @@ wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
     return handlerA;
 }
 
     return handlerA;
 }
 

+bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
+{
+    wxCHECK_MSG( handler, FALSE, _T("RemoveEventHandler(NULL) called") );
+
+    wxEvtHandler *handlerPrev = NULL,
+                 *handlerCur = GetEventHandler();
+    while ( handlerCur )
+    {
+        wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
+
+        if ( handlerCur == handler )
+        {
+            if ( handlerPrev )
+            {
+                handlerPrev->SetNextHandler(handlerNext);
+            }
+            else
+            {
+                SetEventHandler(handlerNext);
+            }
+
+            handler->SetNextHandler(NULL);
+
+            return TRUE;
+        }
+
+        handlerPrev = handlerCur;
+        handlerCur = handlerNext;
+    }
+
+    wxFAIL_MSG( _T("where has the event handler gone?") );
+
+    return FALSE;
+}
+

 // ----------------------------------------------------------------------------
 // cursors, fonts &c
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // cursors, fonts &c
 // ----------------------------------------------------------------------------


@@ -639,6 +733,8 @@ bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
 
     m_backgroundColour = colour;
 
 
     m_backgroundColour = colour;
 

+    m_hasBgCol = TRUE;
+

     return TRUE;
 }
 
     return TRUE;
 }
 


@@ -649,6 +745,8 @@ bool wxWindowBase::SetForegroundColour( const wxColour &colour )
 
     m_foregroundColour = colour;
 
 
     m_foregroundColour = colour;
 

+    m_hasFgCol = TRUE;
+

     return TRUE;
 }
 
     return TRUE;
 }
 


@@ -680,9 +778,36 @@ bool wxWindowBase::SetFont(const wxFont& font)
 
     m_font = fontOk;
 
 
     m_font = fontOk;
 

+    m_hasFont = TRUE;
+

     return TRUE;
 }
 
     return TRUE;
 }
 

+#if wxUSE_PALETTE
+
+void wxWindowBase::SetPalette(const wxPalette& pal)
+{
+    m_hasCustomPalette = TRUE;
+    m_palette = pal;
+
+    // VZ: can anyone explain me what do we do here?
+    wxWindowDC d((wxWindow *) this);
+    d.SetPalette(pal);
+}
+
+wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const
+{
+    wxWindow *win = (wxWindow *)this;
+    while ( win && !win->HasCustomPalette() )
+    {
+        win = win->GetParent();
+    }
+
+    return win;
+}
+
+#endif // wxUSE_PALETTE
+

 #if wxUSE_CARET
 void wxWindowBase::SetCaret(wxCaret *caret)
 {
 #if wxUSE_CARET
 void wxWindowBase::SetCaret(wxCaret *caret)
 {


@@ -956,7 +1081,7 @@ void wxWindowBase::OnHelp(wxHelpEvent& event)
 #endif // wxUSE_HELP
 
 // ----------------------------------------------------------------------------
 #endif // wxUSE_HELP
 
 // ----------------------------------------------------------------------------

-// tooltips
+// tooltipsroot.Replace("\\", "/");

 // ----------------------------------------------------------------------------
 
 #if wxUSE_TOOLTIPS
 // ----------------------------------------------------------------------------
 
 #if wxUSE_TOOLTIPS


@@ -1098,12 +1223,21 @@ void wxWindowBase::DeleteRelatedConstraints()
         m_constraintsInvolvedIn = (wxWindowList *) NULL;
     }
 }
         m_constraintsInvolvedIn = (wxWindowList *) NULL;
     }
 }

+#endif

 
 

-void wxWindowBase::SetSizer(wxSizer *sizer)
+void wxWindowBase::SetSizer(wxSizer *sizer, bool deleteOld)

 {
 {

-    if (m_windowSizer) delete m_windowSizer;
+    if (m_windowSizer && deleteOld) delete m_windowSizer;

 
     m_windowSizer = sizer;
 
     m_windowSizer = sizer;

+
+    SetAutoLayout( sizer != 0 );
+}
+
+void wxWindowBase::SetSizerAndFit(wxSizer *sizer, bool deleteOld)
+{
+    SetSizer( sizer, deleteOld );
+    sizer->SetSizeHints( (wxWindow*) this );

 }
 
 bool wxWindowBase::Layout()
 }
 
 bool wxWindowBase::Layout()


@@ -1112,10 +1246,10 @@ bool wxWindowBase::Layout()
     if ( GetSizer() )
     {
         int w, h;
     if ( GetSizer() )
     {
         int w, h;

-        GetClientSize(&w, &h);
-
+        GetVirtualSize(&w, &h);

         GetSizer()->SetDimension( 0, 0, w, h );
     }
         GetSizer()->SetDimension( 0, 0, w, h );
     }

+#if wxUSE_CONSTRAINTS

     else
     {
         wxLayoutConstraints *constr = GetConstraints();
     else
     {
         wxLayoutConstraints *constr = GetConstraints();


@@ -1139,11 +1273,12 @@ bool wxWindowBase::Layout()
         DoPhase(2);           // Layout grand children
         SetConstraintSizes(); // Recursively set the real window sizes
     }
         DoPhase(2);           // Layout grand children
         SetConstraintSizes(); // Recursively set the real window sizes
     }

+#endif

 
     return TRUE;
 }
 
 
     return TRUE;
 }
 

-
+#if wxUSE_CONSTRAINTS

 // Do a phase of evaluating constraints: the default behaviour. wxSizers may
 // do a similar thing, but also impose their own 'constraints' and order the
 // evaluation differently.
 // Do a phase of evaluating constraints: the default behaviour. wxSizers may
 // do a similar thing, but also impose their own 'constraints' and order the
 // evaluation differently.


@@ -1271,7 +1406,7 @@ void wxWindowBase::SetConstraintSizes(bool recurse)
         while (node)
         {
             wxWindow *win = node->GetData();
         while (node)
         {
             wxWindow *win = node->GetData();

-            if ( !win->IsTopLevel() )
+            if ( !win->IsTopLevel() && win->GetConstraints() )

                 win->SetConstraintSizes();
             node = node->GetNext();
         }
                 win->SetConstraintSizes();
             node = node->GetNext();
         }


@@ -1363,6 +1498,22 @@ void wxWindowBase::GetPositionConstraint(int *x, int *y) const
 
 #endif // wxUSE_CONSTRAINTS
 
 
 #endif // wxUSE_CONSTRAINTS
 

+void wxWindowBase::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags) const
+{
+    // don't do it for the dialogs/frames - they float independently of their
+    // parent
+    if ( !IsTopLevel() )
+    {
+        wxWindow *parent = GetParent();
+        if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent )
+        {
+            wxPoint pt(parent->GetClientAreaOrigin());
+            x += pt.x;
+            y += pt.y;
+        }
+    }
+}
+

 // ----------------------------------------------------------------------------
 // do Update UI processing for child controls
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // do Update UI processing for child controls
 // ----------------------------------------------------------------------------


@@ -1384,7 +1535,7 @@ void wxWindowBase::UpdateWindowUI()
 
         if ( event.GetSetText() )
         {
 
         if ( event.GetSetText() )
         {

-            wxControl *control = wxDynamicThisCast(this, wxControl);
+            wxControl *control = wxDynamicCastThis(wxControl);

             if ( control )
             {
 #if wxUSE_TEXTCTRL
             if ( control )
             {
 #if wxUSE_TEXTCTRL


@@ -1398,7 +1549,7 @@ void wxWindowBase::UpdateWindowUI()
         }
 
 #if wxUSE_CHECKBOX
         }
 
 #if wxUSE_CHECKBOX

-        wxCheckBox *checkbox = wxDynamicThisCast(this, wxCheckBox);
+        wxCheckBox *checkbox = wxDynamicCastThis(wxCheckBox);

         if ( checkbox )
         {
             if ( event.GetSetChecked() )
         if ( checkbox )
         {
             if ( event.GetSetChecked() )


@@ -1407,7 +1558,7 @@ void wxWindowBase::UpdateWindowUI()
 #endif // wxUSE_CHECKBOX
 
 #if wxUSE_RADIOBTN
 #endif // wxUSE_CHECKBOX
 
 #if wxUSE_RADIOBTN

-        wxRadioButton *radiobtn = wxDynamicThisCast(this, wxRadioButton);
+        wxRadioButton *radiobtn = wxDynamicCastThis(wxRadioButton);

         if ( radiobtn )
         {
             if ( event.GetSetChecked() )
         if ( radiobtn )
         {
             if ( event.GetSetChecked() )


@@ -1448,51 +1599,6 @@ wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt)
     return pt2;
 }
 
     return pt2;
 }
 

-// ----------------------------------------------------------------------------
-// client data
-// ----------------------------------------------------------------------------
-
-void wxWindowBase::DoSetClientObject( wxClientData *data )
-{
-    wxASSERT_MSG( m_clientDataType != wxClientData_Void,
-                  wxT("can't have both object and void client data") );
-
-    if ( m_clientObject )
-        delete m_clientObject;
-
-    m_clientObject = data;
-    m_clientDataType = wxClientData_Object;
-}
-
-wxClientData *wxWindowBase::DoGetClientObject() const
-{
-    // it's not an error to call GetClientObject() on a window which doesn't
-    // have client data at all - NULL will be returned
-    wxASSERT_MSG( m_clientDataType != wxClientData_Void,
-                  wxT("this window doesn't have object client data") );
-
-    return m_clientObject;
-}
-
-void wxWindowBase::DoSetClientData( void *data )
-{
-    wxASSERT_MSG( m_clientDataType != wxClientData_Object,
-                  wxT("can't have both object and void client data") );
-
-    m_clientData = data;
-    m_clientDataType = wxClientData_Void;
-}
-
-void *wxWindowBase::DoGetClientData() const
-{
-    // it's not an error to call GetClientData() on a window which doesn't have
-    // client data at all - NULL will be returned
-    wxASSERT_MSG( m_clientDataType != wxClientData_Object,
-                  wxT("this window doesn't have void client data") );
-
-    return m_clientData;
-}
-

 // ----------------------------------------------------------------------------
 // event handlers
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // event handlers
 // ----------------------------------------------------------------------------


@@ -1530,10 +1636,16 @@ void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
     {
         // don't translate these strings
         wxString port;
     {
         // don't translate these strings
         wxString port;

+
+#ifdef __WXUNIVERSAL__
+        port = _T("Univ/");
+#endif // __WXUNIVERSAL__
+

         switch ( wxGetOsVersion() )
         {
             case wxMOTIF_X:     port = _T("Motif"); break;
         switch ( wxGetOsVersion() )
         {
             case wxMOTIF_X:     port = _T("Motif"); break;

-            case wxMACINTOSH:   port = _T("Mac"); break;
+            case wxMAC:
+            case wxMAC_DARWIN:  port = _T("Mac"); break;

             case wxBEOS:        port = _T("BeOS"); break;
             case wxGTK:
             case wxGTK_WIN32:
             case wxBEOS:        port = _T("BeOS"); break;
             case wxGTK:
             case wxGTK_WIN32:


@@ -1556,14 +1668,19 @@ void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
 
         wxMessageBox(wxString::Format(
                                       _T(
 
         wxMessageBox(wxString::Format(
                                       _T(

-                                        "       wxWindows Library (%s port)\nVersion %u.%u.%u, compiled at %s %s\n   Copyright (c) 1995-2000 wxWindows team"
+                                        "       wxWindows Library (%s port)\nVersion %u.%u.%u%s, compiled at %s %s\n   Copyright (c) 1995-2002 wxWindows team"

                                         ),
                                       port.c_str(),
                                       wxMAJOR_VERSION,
                                       wxMINOR_VERSION,
                                       wxRELEASE_NUMBER,
                                         ),
                                       port.c_str(),
                                       wxMAJOR_VERSION,
                                       wxMINOR_VERSION,
                                       wxRELEASE_NUMBER,

-                                      __DATE__,
-                                      __TIME__
+#if wxUSE_UNICODE
+                                      L" (Unicode)",
+#else
+                                      "",
+#endif
+                                      __TDATE__,
+                                      __TTIME__

                                      ),
                      _T("wxWindows information"),
                      wxICON_INFORMATION | wxOK,
                                      ),
                      _T("wxWindows information"),
                      wxICON_INFORMATION | wxOK,


@@ -1625,3 +1742,68 @@ wxHitTest wxWindowBase::DoHitTest(wxCoord x, wxCoord y) const
     return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE;
 }
 
     return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE;
 }
 

+// ----------------------------------------------------------------------------
+// mouse capture
+// ----------------------------------------------------------------------------
+
+struct WXDLLEXPORT wxWindowNext
+{
+    wxWindow *win;
+    wxWindowNext *next;
+} *wxWindowBase::ms_winCaptureNext = NULL;
+
+void wxWindowBase::CaptureMouse()
+{
+    wxLogTrace(_T("mousecapture"), _T("CaptureMouse(0x%08x)"), this);
+
+    wxWindow *winOld = GetCapture();
+    if ( winOld )
+    {
+        ((wxWindowBase*) winOld)->DoReleaseMouse();
+       
+        // save it on stack
+        wxWindowNext *item = new wxWindowNext;
+        item->win = winOld;
+        item->next = ms_winCaptureNext;
+        ms_winCaptureNext = item;
+    }
+    //else: no mouse capture to save
+
+    DoCaptureMouse();
+}
+
+void wxWindowBase::ReleaseMouse()
+{
+    wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(0x%08x)"), this);
+
+    wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") )
+
+    DoReleaseMouse();
+
+    if ( ms_winCaptureNext )
+    {
+        ((wxWindowBase*)ms_winCaptureNext->win)->DoCaptureMouse();
+       
+        wxWindowNext *item = ms_winCaptureNext;
+        ms_winCaptureNext = item->next;
+        delete item;
+    }
+    //else: stack is empty, no previous capture
+
+    wxLogTrace(_T("mousecapture"),
+               _T("After ReleaseMouse() mouse is captured by 0x%08x"),
+               GetCapture());
+}
+
+// ----------------------------------------------------------------------------
+// global functions
+// ----------------------------------------------------------------------------
+
+wxWindow* wxGetTopLevelParent(wxWindow *win)
+{
+    while ( win && !win->IsTopLevel() )
+         win = win->GetParent();
+
+    return win;
+}
+