X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/74e3313b2506b76b18ea1874cf9b835f11d7068a..d43088ee78dca3fc64f9d419b184844eb72384da:/src/common/wincmn.cpp

diff --git a/src/common/wincmn.cpp b/src/common/wincmn.cpp
index fd7ded32ac..59f3a09ffb 100644
--- a/src/common/wincmn.cpp
+++ b/src/common/wincmn.cpp
@@ -17,6 +17,10 @@
 // headers
 // ----------------------------------------------------------------------------
 
+#ifdef __GNUG__
+    #pragma implementation "windowbase.h"
+#endif
+
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -33,27 +37,39 @@
     #include "wx/window.h"
     #include "wx/checkbox.h"
     #include "wx/radiobut.h"
+    #include "wx/textctrl.h"
     #include "wx/settings.h"
     #include "wx/dialog.h"
+    #include "wx/msgdlg.h"
+    #include "wx/statusbr.h"
 #endif //WX_PRECOMP
 
 #if wxUSE_CONSTRAINTS
     #include "wx/layout.h"
+    #include "wx/sizer.h"
 #endif // wxUSE_CONSTRAINTS
 
 #if wxUSE_DRAG_AND_DROP
     #include "wx/dnd.h"
 #endif // wxUSE_DRAG_AND_DROP
 
+#if wxUSE_HELP
+    #include "wx/cshelp.h"
+#endif // wxUSE_HELP
+
 #if wxUSE_TOOLTIPS
     #include "wx/tooltip.h"
 #endif // wxUSE_TOOLTIPS
 
+#if wxUSE_CARET
+    #include "wx/caret.h"
+#endif // wxUSE_CARET
+
 // ----------------------------------------------------------------------------
 // static data
 // ----------------------------------------------------------------------------
 
-int wxWindowBase::ms_lastControlId = 0;
+int wxWindowBase::ms_lastControlId = -200;
 
 IMPLEMENT_ABSTRACT_CLASS(wxWindowBase, wxEvtHandler)
 
@@ -64,6 +80,12 @@ IMPLEMENT_ABSTRACT_CLASS(wxWindowBase, wxEvtHandler)
 BEGIN_EVENT_TABLE(wxWindowBase, wxEvtHandler)
     EVT_SYS_COLOUR_CHANGED(wxWindowBase::OnSysColourChanged)
     EVT_INIT_DIALOG(wxWindowBase::OnInitDialog)
+    EVT_MIDDLE_DOWN(wxWindowBase::OnMiddleClick)
+
+#if wxUSE_HELP
+    EVT_HELP(-1, wxWindowBase::OnHelp)
+#endif // wxUSE_HELP
+
 END_EVENT_TABLE()
 
 // ============================================================================
@@ -78,7 +100,6 @@ END_EVENT_TABLE()
 void wxWindowBase::InitBase()
 {
     // no window yet, no parent nor children
-//    m_widget = (WXWidget)0;
     m_parent = (wxWindow *)NULL;
     m_windowId = -1;
     m_children.DeleteContents( FALSE ); // don't auto delete node data
@@ -93,24 +114,29 @@ void wxWindowBase::InitBase()
     m_isShown = FALSE;
     m_isEnabled = TRUE;
 
-    // no client data
-    m_clientObject = (wxClientData *)NULL;
+    // no client data (yet)
     m_clientData = NULL;
+    m_clientDataType = ClientData_None;
 
     // the default event handler is just this window
     m_eventHandler = this;
 
+#if wxUSE_VALIDATORS
     // no validator
     m_windowValidator = (wxValidator *) NULL;
+#endif // wxUSE_VALIDATORS
 
     // use the system default colours
     wxSystemSettings settings;
 
     m_backgroundColour = settings.GetSystemColour(wxSYS_COLOUR_BTNFACE);
-    m_foregroundColour = *wxBLACK;  // TODO take this from sys settings too?
-    m_font = *wxSWISS_FONT;         //      and this?
+    // m_foregroundColour = *wxBLACK;  // TODO take this from sys settings too?
+    m_foregroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOWTEXT);
 
+    // GRG, changed Mar/2000
+    m_font = settings.GetSystemFont(wxSYS_DEFAULT_GUI_FONT);
     // no style bits
+    m_exStyle =
     m_windowStyle = 0;
 
     // an optimization for the event processing: checking this flag is much
@@ -122,7 +148,6 @@ void wxWindowBase::InitBase()
     m_constraints = (wxLayoutConstraints *) NULL;
     m_constraintsInvolvedIn = (wxWindowList *) NULL;
     m_windowSizer = (wxSizer *) NULL;
-    m_sizerParent = (wxWindowBase *) NULL;
     m_autoLayout = FALSE;
 #endif // wxUSE_CONSTRAINTS
 
@@ -133,6 +158,13 @@ void wxWindowBase::InitBase()
 #if wxUSE_TOOLTIPS
     m_tooltip = (wxToolTip *)NULL;
 #endif // wxUSE_TOOLTIPS
+
+#if wxUSE_CARET
+    m_caret = (wxCaret *)NULL;
+#endif // wxUSE_CARET
+
+    // Whether we're using the current theme for this window (wxGTK only for now)
+    m_themeEnabled = FALSE;
 }
 
 // common part of window creation process
@@ -141,12 +173,13 @@ bool wxWindowBase::CreateBase(wxWindowBase *parent,
                               const wxPoint& WXUNUSED(pos),
                               const wxSize& WXUNUSED(size),
                               long style,
+                              const wxValidator& validator,
                               const wxString& name)
 {
     // m_isWindow is set to TRUE in wxWindowBase::Init() as well as many other
     // member variables - check that it has been called (will catch the case
     // when a new ctor is added which doesn't call InitWindow)
-    wxASSERT_MSG( m_isWindow, _T("Init() must have been called before!") );
+    wxASSERT_MSG( m_isWindow, wxT("Init() must have been called before!") );
 
     // generate a new id if the user doesn't care about it
     m_windowId = id == -1 ? NewControlId() : id;
@@ -155,6 +188,18 @@ bool wxWindowBase::CreateBase(wxWindowBase *parent,
     SetWindowStyleFlag(style);
     SetParent(parent);
 
+#if wxUSE_VALIDATORS
+    SetValidator(validator);
+#endif // wxUSE_VALIDATORS
+
+    // if the parent window has wxWS_EX_VALIDATE_RECURSIVELY set, we want to
+    // have it too - like this it's possible to set it only in the top level
+    // dialog/frame and all children will inherit it by defult
+    if ( parent && (parent->GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) )
+    {
+        SetExtraStyle(wxWS_EX_VALIDATE_RECURSIVELY);
+    }
+
     return TRUE;
 }
 
@@ -176,12 +221,30 @@ wxWindowBase::~wxWindowBase()
     // we weren't a dialog class
     wxTopLevelWindows.DeleteObject(this);
 
-    DestroyChildren();
+    wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") );
 
+    // make sure that there are no dangling pointers left pointing to us
+    wxPanel *panel = wxDynamicCast(GetParent(), wxPanel);
+    if ( panel )
+    {
+        if ( panel->GetLastFocus() == this )
+        {
+            panel->SetLastFocus((wxWindow *)NULL);
+        }
+    }
+
+#if wxUSE_CARET
+    if ( m_caret )
+        delete m_caret;
+#endif // wxUSE_CARET
+
+#if wxUSE_VALIDATORS
     if ( m_windowValidator )
         delete m_windowValidator;
+#endif // wxUSE_VALIDATORS
 
-    if ( m_clientObject )
+    // we only delete object data, not untyped
+    if ( m_clientDataType == ClientData_Object )
         delete m_clientObject;
 
 #if wxUSE_CONSTRAINTS
@@ -201,9 +264,6 @@ wxWindowBase::~wxWindowBase()
     if ( m_windowSizer )
         delete m_windowSizer;
 
-    // If this is a child of a sizer, remove self from parent
-    if ( m_sizerParent )
-        m_sizerParent->RemoveChild(this);
 #endif // wxUSE_CONSTRAINTS
 
 #if wxUSE_DRAG_AND_DROP
@@ -241,80 +301,170 @@ bool wxWindowBase::Close(bool force)
 bool wxWindowBase::DestroyChildren()
 {
     wxWindowList::Node *node;
-    for ( node = GetChildren().GetFirst(); node; node = node->GetNext() )
+    for ( ;; )
     {
+        // we iterate until the list becomes empty
+        node = GetChildren().GetFirst();
+        if ( !node )
+            break;
+
         wxWindow *child = node->GetData();
-        if ( child )
-        {
-            delete child;
-        }
+
+        wxASSERT_MSG( child, wxT("children list contains empty nodes") );
+
+        delete child;
+
+        wxASSERT_MSG( !GetChildren().Find(child),
+                      wxT("child didn't remove itself using RemoveChild()") );
     }
 
     return TRUE;
 }
 
 // ----------------------------------------------------------------------------
-// centre/fit the window
+// size/position related methods
 // ----------------------------------------------------------------------------
 
 // centre the window with respect to its parent in either (or both) directions
 void wxWindowBase::Centre(int direction)
 {
+    // the position/size of the parent window or of the entire screen
+    wxPoint posParent;
     int widthParent, heightParent;
 
-    wxWindow *parent = GetParent();
-    if ( parent )
+    wxWindow *parent = NULL;
+
+    if ( !(direction & wxCENTRE_ON_SCREEN) )
     {
-        parent->GetClientSize(&widthParent, &heightParent);
+        // find the parent to centre this window on: it should be the
+        // immediate parent for the controls but the top level parent for the
+        // top level windows (like dialogs)
+        parent = GetParent();
+        if ( IsTopLevel() )
+        {
+            while ( parent && !parent->IsTopLevel() )
+            {
+                parent = parent->GetParent();
+            }
+        }
+
+        // did we find the parent?
+        if ( !parent )
+        {
+            // no other choice
+            direction |= wxCENTRE_ON_SCREEN;
+        }
     }
-    else
+
+    if ( direction & wxCENTRE_ON_SCREEN )
     {
         // centre with respect to the whole screen
         wxDisplaySize(&widthParent, &heightParent);
     }
+    else
+    {
+        if ( IsTopLevel() )
+        {
+            // centre on the parent
+            parent->GetSize(&widthParent, &heightParent);
+
+            // adjust to the parents position
+            posParent = parent->GetPosition();
+        }
+        else
+        {
+            // centre inside the parents client rectangle
+            parent->GetClientSize(&widthParent, &heightParent);
+        }
+    }
 
     int width, height;
     GetSize(&width, &height);
 
-    int new_x = -1,
-        new_y = -1;
+    int xNew = -1,
+        yNew = -1;
 
     if ( direction & wxHORIZONTAL )
-        new_x = (widthParent - width)/2;
+        xNew = (widthParent - width)/2;
 
     if ( direction & wxVERTICAL )
-        new_y = (heightParent - height)/2;
+        yNew = (heightParent - height)/2;
+
+    xNew += posParent.x;
+    yNew += posParent.y;
 
-    Move(new_x, new_y);
+    // move the window to this position (keeping the old size but using
+    // SetSize() and not Move() to allow xNew and/or yNew to be -1)
+    SetSize(xNew, yNew, width, height, wxSIZE_ALLOW_MINUS_ONE);
 }
 
 // fits the window around the children
 void wxWindowBase::Fit()
 {
-    int maxX = 0,
-        maxY = 0;
-
-    wxWindowList::Node *node = GetChildren().GetFirst();
-    while ( node )
+    if ( GetChildren().GetCount() > 0 )
     {
-        wxWindow *win = node->GetData();
-        int wx, wy, ww, wh;
-        win->GetPosition(&wx, &wy);
-        win->GetSize(&ww, &wh);
-        if ( wx + ww > maxX )
-            maxX = wx + ww;
-        if ( wy + wh > maxY )
-            maxY = wy + wh;
+        wxSize size = DoGetBestSize();
 
-        node = node->GetNext();
+        // for compatibility with the old versions and because it really looks
+        // slightly more pretty like this, add a pad
+        size.x += 7;
+        size.y += 14;
+
+        SetClientSize(size);
     }
+    //else: do nothing if we have no children
+}
 
-    // leave a margin
-    SetClientSize(maxX + 7, maxY + 14);
+// return the size best suited for the current window
+wxSize wxWindowBase::DoGetBestSize() const
+{
+    if ( GetChildren().GetCount() > 0 )
+    {
+        // our minimal acceptable size is such that all our windows fit inside
+        int maxX = 0,
+            maxY = 0;
+
+        for ( wxWindowList::Node *node = GetChildren().GetFirst();
+              node;
+              node = node->GetNext() )
+        {
+            wxWindow *win = node->GetData();
+            if ( win->IsTopLevel() || wxDynamicCast(win, wxStatusBar) || !win->IsShown())
+            {
+                // dialogs and frames lie in different top level windows -
+                // don't deal with them here; as for the status bars, they
+                // don't lie in the client area at all
+                continue;
+            }
+
+            int wx, wy, ww, wh;
+            win->GetPosition(&wx, &wy);
+
+            // if the window hadn't been positioned yet, assume that it is in
+            // the origin
+            if ( wx == -1 )
+                wx = 0;
+            if ( wy == -1 )
+                wy = 0;
+
+            win->GetSize(&ww, &wh);
+            if ( wx + ww > maxX )
+                maxX = wx + ww;
+            if ( wy + wh > maxY )
+                maxY = wy + wh;
+        }
+
+        return wxSize(maxX, maxY);
+    }
+    else
+    {
+        // for a generic window there is no natural best size - just use the
+        // current one
+        return GetSize();
+    }
 }
 
 // set the min/max size of the window
-
 void wxWindowBase::SetSizeHints(int minW, int minH,
                                 int maxW, int maxH,
                                 int WXUNUSED(incW), int WXUNUSED(incH))
@@ -356,6 +506,14 @@ bool wxWindowBase::Enable(bool enable)
         return FALSE;
     }
 }
+// ----------------------------------------------------------------------------
+// RTTI
+// ----------------------------------------------------------------------------
+
+bool wxWindowBase::IsTopLevel() const
+{
+    return FALSE;
+}
 
 // ----------------------------------------------------------------------------
 // reparenting the window
@@ -363,7 +521,12 @@ bool wxWindowBase::Enable(bool enable)
 
 void wxWindowBase::AddChild(wxWindowBase *child)
 {
-    wxCHECK_RET( child, _T("can't add a NULL child") );
+    wxCHECK_RET( child, wxT("can't add a NULL child") );
+
+    // this should never happen and it will lead to a crash later if it does
+    // because RemoveChild() will remove only one node from the children list
+    // and the other(s) one(s) will be left with dangling pointers in them
+    wxASSERT_MSG( !GetChildren().Find(child), _T("AddChild() called twice") );
 
     GetChildren().Append(child);
     child->SetParent(this);
@@ -371,7 +534,7 @@ void wxWindowBase::AddChild(wxWindowBase *child)
 
 void wxWindowBase::RemoveChild(wxWindowBase *child)
 {
-    wxCHECK_RET( child, _T("can't remove a NULL child") );
+    wxCHECK_RET( child, wxT("can't remove a NULL child") );
 
     GetChildren().DeleteObject(child);
     child->SetParent((wxWindow *)NULL);
@@ -463,16 +626,15 @@ bool wxWindowBase::SetForegroundColour( const wxColour &colour )
 
 bool wxWindowBase::SetCursor(const wxCursor& cursor)
 {
-    // don't try to set invalid cursor, always fall back to the default
-    const wxCursor& cursorOk = cursor.Ok() ? cursor : *wxSTANDARD_CURSOR;
-
-    if ( cursorOk == m_cursor )
+    // setting an invalid cursor is ok, it means that we don't have any special
+    // cursor
+    if ( m_cursor == cursor )
     {
         // no change
         return FALSE;
     }
 
-    m_cursor = cursorOk;
+    m_cursor = cursor;
 
     return TRUE;
 }
@@ -482,7 +644,7 @@ bool wxWindowBase::SetFont(const wxFont& font)
     // don't try to set invalid font, always fall back to the default
     const wxFont& fontOk = font.Ok() ? font : *wxSWISS_FONT;
 
-    if ( fontOk == m_font )
+    if ( (wxFont&)fontOk == m_font )
     {
         // no change
         return FALSE;
@@ -493,6 +655,25 @@ bool wxWindowBase::SetFont(const wxFont& font)
     return TRUE;
 }
 
+#if wxUSE_CARET
+void wxWindowBase::SetCaret(wxCaret *caret)
+{
+    if ( m_caret )
+    {
+        delete m_caret;
+    }
+
+    m_caret = caret;
+
+    if ( m_caret )
+    {
+        wxASSERT_MSG( m_caret->GetWindow() == this,
+                      wxT("caret should be created associated to this window") );
+    }
+}
+#endif // wxUSE_CARET
+
+#if wxUSE_VALIDATORS
 // ----------------------------------------------------------------------------
 // validators
 // ----------------------------------------------------------------------------
@@ -507,6 +688,7 @@ void wxWindowBase::SetValidator(const wxValidator& validator)
     if ( m_windowValidator )
         m_windowValidator->SetWindow(this) ;
 }
+#endif // wxUSE_VALIDATORS
 
 // ----------------------------------------------------------------------------
 // update region testing
@@ -562,29 +744,53 @@ wxWindow *wxWindowBase::FindWindow( const wxString& name )
 // dialog oriented functions
 // ----------------------------------------------------------------------------
 
-void wxWindowBase::MakeModal(bool WXUNUSED(modal))
+void wxWindowBase::MakeModal(bool modal)
 {
-    wxFAIL_MSG("TODO");
+    // Disable all other windows
+    if ( IsTopLevel() )
+    {
+        wxWindowList::Node *node = wxTopLevelWindows.GetFirst();
+        while (node)
+        {
+            wxWindow *win = node->GetData();
+            if (win != this)
+                win->Enable(!modal);
+
+            node = node->GetNext();
+        }
+    }
 }
 
 bool wxWindowBase::Validate()
 {
+#if wxUSE_VALIDATORS
+    bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
+
     wxWindowList::Node *node;
     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
     {
         wxWindowBase *child = node->GetData();
         wxValidator *validator = child->GetValidator();
-        if ( validator && validator->Validate(this) )
+        if ( validator && !validator->Validate((wxWindow *)this) )
+        {
+            return FALSE;
+        }
+
+        if ( recurse && !child->Validate() )
         {
             return FALSE;
         }
     }
+#endif // wxUSE_VALIDATORS
 
     return TRUE;
 }
 
 bool wxWindowBase::TransferDataToWindow()
 {
+#if wxUSE_VALIDATORS
+    bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
+
     wxWindowList::Node *node;
     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
     {
@@ -592,32 +798,54 @@ bool wxWindowBase::TransferDataToWindow()
         wxValidator *validator = child->GetValidator();
         if ( validator && !validator->TransferToWindow() )
         {
-            wxLog *log = wxLog::GetActiveTarget();
-            if ( log )
-            {
-                wxLogWarning(_("Could not transfer data to window"));
-                log->Flush();
-            }
+            wxLogWarning(_("Could not transfer data to window"));
+            wxLog::FlushActive();
 
             return FALSE;
         }
+
+        if ( recurse )
+        {
+            if ( !child->TransferDataToWindow() )
+            {
+                // warning already given
+                return FALSE;
+            }
+        }
     }
+#endif // wxUSE_VALIDATORS
 
     return TRUE;
 }
 
 bool wxWindowBase::TransferDataFromWindow()
 {
+#if wxUSE_VALIDATORS
+    bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
+
     wxWindowList::Node *node;
     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
     {
         wxWindow *child = node->GetData();
-        if ( child->GetValidator() &&
-             !child->GetValidator()->TransferFromWindow() )
+        wxValidator *validator = child->GetValidator();
+        if ( validator && !validator->TransferFromWindow() )
         {
+            // nop warning here because the application is supposed to give
+            // one itself - we don't know here what might have gone wrongly
+
             return FALSE;
         }
+
+        if ( recurse )
+        {
+            if ( !child->TransferDataFromWindow() )
+            {
+                // warning already given
+                return FALSE;
+            }
+        }
     }
+#endif // wxUSE_VALIDATORS
 
     return TRUE;
 }
@@ -629,6 +857,64 @@ void wxWindowBase::InitDialog()
     GetEventHandler()->ProcessEvent(event);
 }
 
+// ----------------------------------------------------------------------------
+// context-sensitive help support
+// ----------------------------------------------------------------------------
+
+#if wxUSE_HELP
+
+// associate this help text with this window
+void wxWindowBase::SetHelpText(const wxString& text)
+{
+    wxHelpProvider *helpProvider = wxHelpProvider::Get();
+    if ( helpProvider )
+    {
+        helpProvider->AddHelp(this, text);
+    }
+}
+
+// associate this help text with all windows with the same id as this
+// one
+void wxWindowBase::SetHelpTextForId(const wxString& text)
+{
+    wxHelpProvider *helpProvider = wxHelpProvider::Get();
+    if ( helpProvider )
+    {
+        helpProvider->AddHelp(GetId(), text);
+    }
+}
+
+// get the help string associated with this window (may be empty)
+wxString wxWindowBase::GetHelpText() const
+{
+    wxString text;
+    wxHelpProvider *helpProvider = wxHelpProvider::Get();
+    if ( helpProvider )
+    {
+        text = helpProvider->GetHelp(this);
+    }
+
+    return text;
+}
+
+// show help for this window
+void wxWindowBase::OnHelp(wxHelpEvent& event)
+{
+    wxHelpProvider *helpProvider = wxHelpProvider::Get();
+    if ( helpProvider )
+    {
+        if ( helpProvider->ShowHelp(this) )
+        {
+            // skip the event.Skip() below
+            return;
+        }
+    }
+
+    event.Skip();
+}
+
+#endif // wxUSE_HELP
+
 // ----------------------------------------------------------------------------
 // tooltips
 // ----------------------------------------------------------------------------
@@ -775,39 +1061,45 @@ void wxWindowBase::DeleteRelatedConstraints()
 
 void wxWindowBase::SetSizer(wxSizer *sizer)
 {
+    if (m_windowSizer) delete m_windowSizer;
+
     m_windowSizer = sizer;
-    if ( sizer )
-        sizer->SetSizerParent(this);
 }
 
 bool wxWindowBase::Layout()
 {
-    if ( GetConstraints() )
+    // If there is a sizer, use it instead of the constraints
+    if ( GetSizer() )
     {
         int w, h;
         GetClientSize(&w, &h);
-        GetConstraints()->width.SetValue(w);
-        GetConstraints()->height.SetValue(h);
-    }
 
-    // If top level (one sizer), evaluate the sizer's constraints.
-    if ( GetSizer() )
-    {
-        int noChanges;
-        GetSizer()->ResetConstraints();   // Mark all constraints as unevaluated
-        GetSizer()->LayoutPhase1(&noChanges);
-        GetSizer()->LayoutPhase2(&noChanges);
-        GetSizer()->SetConstraintSizes(); // Recursively set the real window sizes
-        return TRUE;
+        GetSizer()->SetDimension( 0, 0, w, h );
     }
     else
     {
-        // Otherwise, evaluate child constraints
+        wxLayoutConstraints *constr = GetConstraints();
+        bool wasOk = constr && constr->AreSatisfied();
+
         ResetConstraints();   // Mark all constraints as unevaluated
-        DoPhase(1);           // Just one phase need if no sizers involved
-        DoPhase(2);
+
+        // if we're a top level panel (i.e. our parent is frame/dialog), our
+        // own constraints will never be satisfied any more unless we do it
+        // here
+        if ( wasOk )
+        {
+            int noChanges = 1;
+            while ( noChanges > 0 )
+            {
+                constr->SatisfyConstraints(this, &noChanges);
+            }
+        }
+
+        DoPhase(1);           // Layout children
+        DoPhase(2);           // Layout grand children
         SetConstraintSizes(); // Recursively set the real window sizes
     }
+
     return TRUE;
 }
 
@@ -852,7 +1144,7 @@ bool wxWindowBase::DoPhase(int phase)
         while (node)
         {
             wxWindow *child = node->GetData();
-            if ( !child->IsKindOf(CLASSINFO(wxFrame)) && !child->IsKindOf(CLASSINFO(wxDialog)) )
+            if ( !child->IsTopLevel() )
             {
                 wxLayoutConstraints *constr = child->GetConstraints();
                 if ( constr )
@@ -892,11 +1184,12 @@ void wxWindowBase::ResetConstraints()
         constr->centreX.SetDone(FALSE);
         constr->centreY.SetDone(FALSE);
     }
+
     wxWindowList::Node *node = GetChildren().GetFirst();
     while (node)
     {
         wxWindow *win = node->GetData();
-        if ( !win->IsKindOf(CLASSINFO(wxFrame)) && !win->IsKindOf(CLASSINFO(wxDialog)) )
+        if ( !win->IsTopLevel() )
             win->ResetConstraints();
         node = node->GetNext();
     }
@@ -907,44 +1200,29 @@ void wxWindowBase::ResetConstraints()
 void wxWindowBase::SetConstraintSizes(bool recurse)
 {
     wxLayoutConstraints *constr = GetConstraints();
-    if ( constr && constr->left.GetDone() && constr->right.GetDone( ) &&
-            constr->width.GetDone() && constr->height.GetDone())
+    if ( constr && constr->AreSatisfied() )
     {
         int x = constr->left.GetValue();
         int y = constr->top.GetValue();
         int w = constr->width.GetValue();
         int h = constr->height.GetValue();
 
-        // If we don't want to resize this window, just move it...
         if ( (constr->width.GetRelationship() != wxAsIs ) ||
-                (constr->height.GetRelationship() != wxAsIs))
+             (constr->height.GetRelationship() != wxAsIs) )
         {
-            // Calls Layout() recursively. AAAGH. How can we stop that.
-            // Simply take Layout() out of non-top level OnSizes.
-            SizerSetSize(x, y, w, h);
+            SetSize(x, y, w, h);
         }
         else
         {
-            SizerMove(x, y);
+            // If we don't want to resize this window, just move it...
+            Move(x, y);
         }
     }
     else if ( constr )
     {
-        wxChar *windowClass = GetClassInfo()->GetClassName();
-
-        wxString winName;
-        if ( GetName() == _T("") )
-            winName = _T("unnamed");
-        else
-            winName = GetName();
-        wxLogDebug( _T("Constraint(s) not satisfied for window of type %s, name %s:\n"),
-                (const wxChar *)windowClass,
-                (const wxChar *)winName);
-        if ( !constr->left.GetDone()) wxLogDebug( _T("  unsatisfied 'left' constraint.\n")  );
-        if ( !constr->right.GetDone()) wxLogDebug( _T("  unsatisfied 'right' constraint.\n")  );
-        if ( !constr->width.GetDone()) wxLogDebug( _T("  unsatisfied 'width' constraint.\n")  );
-        if ( !constr->height.GetDone())  wxLogDebug( _T("  unsatisfied 'height' constraint.\n")  );
-        wxLogDebug( _T("Please check constraints: try adding AsIs() constraints.\n") );
+        wxLogDebug(wxT("Constraints not satisfied for %s named '%s'."),
+                   GetClassInfo()->GetClassName(),
+                   GetName().c_str());
     }
 
     if ( recurse )
@@ -953,44 +1231,13 @@ void wxWindowBase::SetConstraintSizes(bool recurse)
         while (node)
         {
             wxWindow *win = node->GetData();
-            if ( !win->IsKindOf(CLASSINFO(wxFrame)) && !win->IsKindOf(CLASSINFO(wxDialog)) )
+            if ( !win->IsTopLevel() )
                 win->SetConstraintSizes();
             node = node->GetNext();
         }
     }
 }
 
-// This assumes that all sizers are 'on' the same window, i.e. the parent of
-// this window.
-void wxWindowBase::TransformSizerToActual(int *x, int *y) const
-{
-    if ( !m_sizerParent || m_sizerParent->IsKindOf(CLASSINFO(wxDialog) ) ||
-            m_sizerParent->IsKindOf(CLASSINFO(wxFrame)) )
-        return;
-
-    int xp, yp;
-    m_sizerParent->GetPosition(&xp, &yp);
-    m_sizerParent->TransformSizerToActual(&xp, &yp);
-    *x += xp;
-    *y += yp;
-}
-
-void wxWindowBase::SizerSetSize(int x, int y, int w, int h)
-{
-    int xx = x;
-    int yy = y;
-    TransformSizerToActual(&xx, &yy);
-    SetSize(xx, yy, w, h);
-}
-
-void wxWindowBase::SizerMove(int x, int y)
-{
-    int xx = x;
-    int yy = y;
-    TransformSizerToActual(&xx, &yy);
-    Move(xx, yy);
-}
-
 // Only set the size/position of the constraint (if any)
 void wxWindowBase::SetSizeConstraint(int x, int y, int w, int h)
 {
@@ -1086,34 +1333,44 @@ void wxWindowBase::GetPositionConstraint(int *x, int *y) const
 // of control classes.
 void wxWindowBase::UpdateWindowUI()
 {
-    wxWindowID id = GetId();
-    if ( id > 0 )
+    wxUpdateUIEvent event(GetId());
+    event.m_eventObject = this;
+
+    if ( GetEventHandler()->ProcessEvent(event) )
     {
-        wxUpdateUIEvent event(id);
-        event.m_eventObject = this;
+        if ( event.GetSetEnabled() )
+            Enable(event.GetEnabled());
 
-        if ( GetEventHandler()->ProcessEvent(event) )
+        if ( event.GetSetText() )
         {
-            if ( event.GetSetEnabled() )
-                Enable(event.GetEnabled());
-
-            if ( event.GetSetText() && IsKindOf(CLASSINFO(wxControl)) )
-                ((wxControl*)this)->SetLabel(event.GetText());
-
-            if ( IsKindOf(CLASSINFO(wxCheckBox)) )
-            {
-                if ( event.GetSetChecked() )
-                    ((wxCheckBox *)this)->SetValue(event.GetChecked());
-            }
-            // TODO No radio buttons in wxGTK yet
-#ifndef __WXGTK__
-            else if ( IsKindOf(CLASSINFO(wxRadioButton)) )
+            wxControl *control = wxDynamicCast(this, wxControl);
+            if ( control )
             {
-                if ( event.GetSetChecked() )
-                    ((wxRadioButton *) this)->SetValue(event.GetChecked());
+                wxTextCtrl *text = wxDynamicCast(control, wxTextCtrl);
+                if ( text )
+                    text->SetValue(event.GetText());
+                else
+                    control->SetLabel(event.GetText());
             }
-#endif // !wxGTK
         }
+
+#if wxUSE_CHECKBOX
+        wxCheckBox *checkbox = wxDynamicCast(this, wxCheckBox);
+        if ( checkbox )
+        {
+            if ( event.GetSetChecked() )
+                checkbox->SetValue(event.GetChecked());
+        }
+#endif // wxUSE_CHECKBOX
+
+#if wxUSE_RADIOBTN
+        wxRadioButton *radiobtn = wxDynamicCast(this, wxRadioButton);
+        if ( radiobtn )
+        {
+            if ( event.GetSetChecked() )
+                radiobtn->SetValue(event.GetChecked());
+        }
+#endif // wxUSE_RADIOBTN
     }
 }
 
@@ -1125,9 +1382,11 @@ wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt)
 {
     int charWidth = GetCharWidth();
     int charHeight = GetCharHeight();
-    wxPoint pt2;
-    pt2.x = (int) ((pt.x * 4) / charWidth) ;
-    pt2.y = (int) ((pt.y * 8) / charHeight) ;
+    wxPoint pt2(-1, -1);
+    if (pt.x != -1)
+        pt2.x = (int) ((pt.x * 4) / charWidth) ;
+    if (pt.y != -1)
+        pt2.y = (int) ((pt.y * 8) / charHeight) ;
 
     return pt2;
 }
@@ -1136,13 +1395,60 @@ wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt)
 {
     int charWidth = GetCharWidth();
     int charHeight = GetCharHeight();
-    wxPoint pt2;
-    pt2.x = (int) ((pt.x * charWidth) / 4) ;
-    pt2.y = (int) ((pt.y * charHeight) / 8) ;
+    wxPoint pt2(-1, -1);
+    if (pt.x != -1)
+        pt2.x = (int) ((pt.x * charWidth) / 4) ;
+    if (pt.y != -1)
+        pt2.y = (int) ((pt.y * charHeight) / 8) ;
 
     return pt2;
 }
 
+// ----------------------------------------------------------------------------
+// client data
+// ----------------------------------------------------------------------------
+
+void wxWindowBase::DoSetClientObject( wxClientData *data )
+{
+    wxASSERT_MSG( m_clientDataType != ClientData_Void,
+                  wxT("can't have both object and void client data") );
+
+    if ( m_clientObject )
+        delete m_clientObject;
+
+    m_clientObject = data;
+    m_clientDataType = ClientData_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 != ClientData_Void,
+                  wxT("this window doesn't have object client data") );
+
+    return m_clientObject;
+}
+
+void wxWindowBase::DoSetClientData( void *data )
+{
+    wxASSERT_MSG( m_clientDataType != ClientData_Object,
+                  wxT("can't have both object and void client data") );
+
+    m_clientData = data;
+    m_clientDataType = ClientData_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 != ClientData_Object,
+                  wxT("this window doesn't have void client data") );
+
+    return m_clientData;
+}
+
 // ----------------------------------------------------------------------------
 // event handlers
 // ----------------------------------------------------------------------------
@@ -1172,6 +1478,58 @@ void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
     TransferDataToWindow();
 }
 
+// process Ctrl-Alt-mclick
+void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
+{
+    if ( event.ControlDown() && event.AltDown() )
+    {
+        // don't translate these strings
+        wxString port;
+        switch ( wxGetOsVersion() )
+        {
+            case wxMOTIF_X:     port = _T("Motif"); break;
+            case wxMACINTOSH:   port = _T("Mac"); break;
+            case wxBEOS:        port = _T("BeOS"); break;
+            case wxGTK:
+            case wxGTK_WIN32:
+            case wxGTK_OS2:
+            case wxGTK_BEOS:    port = _T("GTK"); break;
+            case wxWINDOWS:
+            case wxPENWINDOWS:
+            case wxWINDOWS_NT:
+            case wxWIN32S:
+            case wxWIN95:
+            case wxWIN386:      port = _T("MS Windows"); break;
+            case wxMGL_UNIX:
+            case wxMGL_X:
+            case wxMGL_WIN32:
+            case wxMGL_OS2:     port = _T("MGL"); break;
+            case wxWINDOWS_OS2:
+            case wxOS2_PM:      port = _T("OS/2"); break;
+            default:            port = _T("unknown"); break;
+        }
+
+        wxMessageBox(wxString::Format(
+                                      _T(
+                                        "       wxWindows Library (%s port)\nVersion %u.%u.%u, compiled at %s %s\n   Copyright (c) 1995-2000 wxWindows team"
+                                        ),
+                                      port.c_str(),
+                                      wxMAJOR_VERSION,
+                                      wxMINOR_VERSION,
+                                      wxRELEASE_NUMBER,
+                                      __DATE__,
+                                      __TIME__
+                                     ),
+                     _T("wxWindows information"),
+                     wxICON_INFORMATION | wxOK,
+                     (wxWindow *)this);
+    }
+    else
+    {
+        event.Skip();
+    }
+}
+
 // ----------------------------------------------------------------------------
 // list classes implementation
 // ----------------------------------------------------------------------------