new file added

[wxWidgets.git] / src / xrc / xh_sizer.cpp

diff --git a/src/xrc/xh_sizer.cpp b/src/xrc/xh_sizer.cpp
index db47dceec3cc9b8741db06af955cfc2f6092ee54..6a7e591bb37562a17f7bc629de4d5196b52b1438 100644 (file)
--- a/src/xrc/xh_sizer.cpp
+++ b/src/xrc/xh_sizer.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        xh_sizer.cpp
+// Name:        src/xrc/xh_sizer.cpp

 // Purpose:     XRC resource for wxBoxSizer
 // Author:      Vaclav Slavik
 // Created:     2000/03/21
 // Purpose:     XRC resource for wxBoxSizer
 // Author:      Vaclav Slavik
 // Created:     2000/03/21


@@ -7,10 +7,6 @@
 // Copyright:   (c) 2000 Vaclav Slavik
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 // Copyright:   (c) 2000 Vaclav Slavik
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////

- 
-#ifdef __GNUG__
-#pragma implementation "xh_sizer.h"
-#endif

 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"


@@ -19,26 +15,38 @@
     #pragma hdrstop
 #endif
 
     #pragma hdrstop
 #endif
 

+#if wxUSE_XRC
+

 #include "wx/xrc/xh_sizer.h"
 #include "wx/xrc/xh_sizer.h"

-#include "wx/sizer.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/log.h"
+    #include "wx/panel.h"
+    #include "wx/statbox.h"
+    #include "wx/sizer.h"
+    #include "wx/frame.h"
+    #include "wx/dialog.h"
+    #include "wx/button.h"
+    #include "wx/scrolwin.h"
+#endif
+

 #include "wx/gbsizer.h"
 #include "wx/gbsizer.h"

-#include "wx/log.h"
-#include "wx/statbox.h"
+#include "wx/wrapsizer.h"

 #include "wx/notebook.h"
 #include "wx/notebook.h"

-#include "wx/panel.h"

 #include "wx/tokenzr.h"
 
 
 #include "wx/tokenzr.h"
 
 

+//-----------------------------------------------------------------------------
+// wxSizerXmlHandler
+//-----------------------------------------------------------------------------

 
 IMPLEMENT_DYNAMIC_CLASS(wxSizerXmlHandler, wxXmlResourceHandler)
 
 
 IMPLEMENT_DYNAMIC_CLASS(wxSizerXmlHandler, wxXmlResourceHandler)
 

-    
-    
-wxSizerXmlHandler::wxSizerXmlHandler() 
-    : wxXmlResourceHandler(),
-      m_isInside(FALSE),
-      m_isGBS(FALSE),
-      m_parentSizer(NULL)
+wxSizerXmlHandler::wxSizerXmlHandler()
+                  :wxXmlResourceHandler(),
+                   m_isInside(false),
+                   m_isGBS(false),
+                   m_parentSizer(NULL)

 {
     XRC_ADD_STYLE(wxHORIZONTAL);
     XRC_ADD_STYLE(wxVERTICAL);
 {
     XRC_ADD_STYLE(wxHORIZONTAL);
     XRC_ADD_STYLE(wxVERTICAL);


@@ -69,8 +77,18 @@ wxSizerXmlHandler::wxSizerXmlHandler()
     XRC_ADD_STYLE(wxALIGN_CENTRE_HORIZONTAL);
     XRC_ADD_STYLE(wxALIGN_CENTER_VERTICAL);
     XRC_ADD_STYLE(wxALIGN_CENTRE_VERTICAL);
     XRC_ADD_STYLE(wxALIGN_CENTRE_HORIZONTAL);
     XRC_ADD_STYLE(wxALIGN_CENTER_VERTICAL);
     XRC_ADD_STYLE(wxALIGN_CENTRE_VERTICAL);

-    
-    XRC_ADD_STYLE(wxADJUST_MINSIZE);
+
+    XRC_ADD_STYLE(wxFIXED_MINSIZE);
+    XRC_ADD_STYLE(wxRESERVE_SPACE_EVEN_IF_HIDDEN);
+
+    // this flag doesn't do anything any more but we can just ignore its
+    // occurrences in the old resource files instead of raising a fuss because
+    // of it
+    AddStyle("wxADJUST_MINSIZE", 0);
+
+    // wxWrapSizer-specific flags
+    XRC_ADD_STYLE(wxEXTEND_LAST_ON_EACH_LINE);
+    XRC_ADD_STYLE(wxREMOVE_LEADING_SPACES);

 }
 
 
 }
 
 


@@ -79,16 +97,16 @@ bool wxSizerXmlHandler::CanHandle(wxXmlNode *node)
 {
     return ( (!m_isInside && IsSizerNode(node)) ||
              (m_isInside && IsOfClass(node, wxT("sizeritem"))) ||
 {
     return ( (!m_isInside && IsSizerNode(node)) ||
              (m_isInside && IsOfClass(node, wxT("sizeritem"))) ||

-             (m_isInside && IsOfClass(node, wxT("spacer"))) 
+             (m_isInside && IsOfClass(node, wxT("spacer")))

         );
 }
 
         );
 }
 

-    
+

 wxObject* wxSizerXmlHandler::DoCreateResource()
 wxObject* wxSizerXmlHandler::DoCreateResource()

-{ 
+{

     if (m_class == wxT("sizeritem"))
         return Handle_sizeritem();
     if (m_class == wxT("sizeritem"))
         return Handle_sizeritem();

-    
+

     else if (m_class == wxT("spacer"))
         return Handle_spacer();
 
     else if (m_class == wxT("spacer"))
         return Handle_spacer();
 


@@ -97,15 +115,47 @@ wxObject* wxSizerXmlHandler::DoCreateResource()
 }
 
 
 }
 
 

+wxSizer* wxSizerXmlHandler::DoCreateSizer(const wxString& name)
+{
+    if (name == wxT("wxBoxSizer"))
+        return Handle_wxBoxSizer();
+#if wxUSE_STATBOX
+    else if (name == wxT("wxStaticBoxSizer"))
+        return Handle_wxStaticBoxSizer();
+#endif
+    else if (name == wxT("wxGridSizer"))
+    {
+        if ( !ValidateGridSizerChildren() )
+            return NULL;
+        return Handle_wxGridSizer();
+    }
+    else if (name == wxT("wxFlexGridSizer"))
+    {
+        return Handle_wxFlexGridSizer();
+    }
+    else if (name == wxT("wxGridBagSizer"))
+    {
+        return Handle_wxGridBagSizer();
+    }
+    else if (name == wxT("wxWrapSizer"))
+    {
+        return Handle_wxWrapSizer();
+    }
+
+    ReportError(wxString::Format("unknown sizer class \"%s\"", name));
+    return NULL;
+}
+

 
 
 
 

-bool wxSizerXmlHandler::IsSizerNode(wxXmlNode *node)
+bool wxSizerXmlHandler::IsSizerNode(wxXmlNode *node) const

 {
     return (IsOfClass(node, wxT("wxBoxSizer"))) ||
            (IsOfClass(node, wxT("wxStaticBoxSizer"))) ||
            (IsOfClass(node, wxT("wxGridSizer"))) ||
            (IsOfClass(node, wxT("wxFlexGridSizer"))) ||
 {
     return (IsOfClass(node, wxT("wxBoxSizer"))) ||
            (IsOfClass(node, wxT("wxStaticBoxSizer"))) ||
            (IsOfClass(node, wxT("wxGridSizer"))) ||
            (IsOfClass(node, wxT("wxFlexGridSizer"))) ||

-           (IsOfClass(node, wxT("wxGridBagSizer")));
+           (IsOfClass(node, wxT("wxGridBagSizer"))) ||
+           (IsOfClass(node, wxT("wxWrapSizer")));

 }
 
 
 }
 
 


@@ -121,14 +171,13 @@ wxObject* wxSizerXmlHandler::Handle_sizeritem()
     {
         // create a sizer item for it
         wxSizerItem* sitem = MakeSizerItem();
     {
         // create a sizer item for it
         wxSizerItem* sitem = MakeSizerItem();

-        SetSizerItemAttributes(sitem);
-        
+

         // now fetch the item to be managed
         bool old_gbs = m_isGBS;
         bool old_ins = m_isInside;
         wxSizer *old_par = m_parentSizer;
         // now fetch the item to be managed
         bool old_gbs = m_isGBS;
         bool old_ins = m_isInside;
         wxSizer *old_par = m_parentSizer;

-        m_isInside = FALSE;
-        if (!IsSizerNode(n)) m_parentSizer = NULL;        
+        m_isInside = false;
+        if (!IsSizerNode(n)) m_parentSizer = NULL;

         wxObject *item = CreateResFromNode(n, m_parent, NULL);
         m_isInside = old_ins;
         m_parentSizer = old_par;
         wxObject *item = CreateResFromNode(n, m_parent, NULL);
         m_isInside = old_ins;
         m_parentSizer = old_par;


@@ -137,20 +186,23 @@ wxObject* wxSizerXmlHandler::Handle_sizeritem()
         // and figure out what type it is
         wxSizer *sizer = wxDynamicCast(item, wxSizer);
         wxWindow *wnd = wxDynamicCast(item, wxWindow);
         // and figure out what type it is
         wxSizer *sizer = wxDynamicCast(item, wxSizer);
         wxWindow *wnd = wxDynamicCast(item, wxWindow);

-        
+

         if (sizer)
         if (sizer)

-            sitem->SetSizer(sizer);
+            sitem->AssignSizer(sizer);

         else if (wnd)
         else if (wnd)

-            sitem->SetWindow(wnd);
-        else 
-            wxLogError(wxT("Error in resource."));
+            sitem->AssignWindow(wnd);
+        else
+            ReportError(n, "unexpected item in sizer");
+
+        // finally, set other wxSizerItem attributes
+        SetSizerItemAttributes(sitem);

 
         AddSizerItem(sitem);
         return item;
     }
     else /*n == NULL*/
     {
 
         AddSizerItem(sitem);
         return item;
     }
     else /*n == NULL*/
     {

-        wxLogError(wxT("Error in resource: no window/sizer/spacer within sizeritem object."));
+        ReportError("no window/sizer/spacer within sizeritem object");

         return NULL;
     }
 }
         return NULL;
     }
 }


@@ -158,47 +210,39 @@ wxObject* wxSizerXmlHandler::Handle_sizeritem()
 
 wxObject* wxSizerXmlHandler::Handle_spacer()
 {
 
 wxObject* wxSizerXmlHandler::Handle_spacer()
 {

-    wxCHECK_MSG(m_parentSizer, NULL, wxT("Incorrect syntax of XRC resource: spacer not within sizer!"));
+    if ( !m_parentSizer )
+    {
+        ReportError("spacer only allowed inside a sizer");
+        return NULL;
+    }

 
     wxSizerItem* sitem = MakeSizerItem();
     SetSizerItemAttributes(sitem);
 
     wxSizerItem* sitem = MakeSizerItem();
     SetSizerItemAttributes(sitem);

-    sitem->SetSpacer(GetSize());
-    AddSizerItem(sitem);    
+    sitem->AssignSpacer(GetSize());
+    AddSizerItem(sitem);

     return NULL;
 }
 
 
 wxObject* wxSizerXmlHandler::Handle_sizer()
 {
     return NULL;
 }
 
 
 wxObject* wxSizerXmlHandler::Handle_sizer()
 {

-    wxSizer *sizer = NULL;
-        

     wxXmlNode *parentNode = m_node->GetParent();
 
     wxXmlNode *parentNode = m_node->GetParent();
 

-    wxCHECK_MSG(m_parentSizer != NULL ||
-                (parentNode->GetType() == wxXML_ELEMENT_NODE &&
-                 m_parentAsWindow != NULL &&
-                 (m_parentAsWindow->IsKindOf(CLASSINFO(wxPanel)) ||
-                  m_parentAsWindow->IsKindOf(CLASSINFO(wxFrame)) ||
-                  m_parentAsWindow->IsKindOf(CLASSINFO(wxDialog)))
-                    ), NULL,
-                wxT("Incorrect use of sizer: parent is not 'wxDialog', 'wxFrame' or 'wxPanel'."));
-
-    if (m_class == wxT("wxBoxSizer"))
-        sizer = Handle_wxBoxSizer();
-
-    else if (m_class == wxT("wxStaticBoxSizer"))
-        sizer = Handle_wxStaticBoxSizer();
-        
-    else if (m_class == wxT("wxGridSizer"))
-        sizer = Handle_wxGridSizer();
-                                    
-    else if (m_class == wxT("wxFlexGridSizer"))
-        sizer = Handle_wxFlexGridSizer();
-
-    else if (m_class == wxT("wxGridBagSizer"))
-        sizer = Handle_wxGridBagSizer();
-
-    
+    if ( !m_parentSizer &&
+            (!parentNode || parentNode->GetType() != wxXML_ELEMENT_NODE ||
+             !m_parentAsWindow) )
+    {
+        ReportError("sizer must have a window parent");
+        return NULL;
+    }
+
+    // Create the sizer of the appropriate class.
+    wxSizer * const sizer = DoCreateSizer(m_class);
+
+    // creation of sizer failed for some (already reported) reason, so exit:
+    if ( !sizer )
+        return NULL;
+

     wxSize minsize = GetSize(wxT("minsize"));
     if (!(minsize == wxDefaultSize))
         sizer->SetMinSize(minsize);
     wxSize minsize = GetSize(wxT("minsize"));
     if (!(minsize == wxDefaultSize))
         sizer->SetMinSize(minsize);


@@ -209,10 +253,26 @@ wxObject* wxSizerXmlHandler::Handle_sizer()
 
     // set new state
     m_parentSizer = sizer;
 
     // set new state
     m_parentSizer = sizer;

-    m_isInside = TRUE;
+    m_isInside = true;

     m_isGBS = (m_class == wxT("wxGridBagSizer"));
     m_isGBS = (m_class == wxT("wxGridBagSizer"));

-    
-    CreateChildren(m_parent, TRUE/*only this handler*/);
+
+    wxObject* parent = m_parent;
+#if wxUSE_STATBOX
+    // wxStaticBoxSizer's child controls should be parented by the box itself,
+    // not its parent.
+    wxStaticBoxSizer* const stsizer = wxDynamicCast(sizer, wxStaticBoxSizer);
+    if ( stsizer )
+        parent = stsizer->GetStaticBox();
+#endif // wxUSE_STATBOX
+
+    CreateChildren(parent, true/*only this handler*/);
+
+    // set growable rows and cols for sizers which support this
+    if ( wxFlexGridSizer *flexsizer = wxDynamicCast(sizer, wxFlexGridSizer) )
+    {
+        SetGrowables(flexsizer, wxT("growablerows"), true);
+        SetGrowables(flexsizer, wxT("growablecols"), false);
+    }

 
     // restore state
     m_isInside = old_ins;
 
     // restore state
     m_isInside = old_ins;


@@ -220,19 +280,29 @@ wxObject* wxSizerXmlHandler::Handle_sizer()
 
     if (m_parentSizer == NULL) // setup window:
     {
 
     if (m_parentSizer == NULL) // setup window:
     {

-        m_parentAsWindow->SetAutoLayout(TRUE);

         m_parentAsWindow->SetSizer(sizer);
 
         wxXmlNode *nd = m_node;
         m_node = parentNode;
         if (GetSize() == wxDefaultSize)
         m_parentAsWindow->SetSizer(sizer);
 
         wxXmlNode *nd = m_node;
         m_node = parentNode;
         if (GetSize() == wxDefaultSize)

-            sizer->Fit(m_parentAsWindow);
+        {
+            if ( wxDynamicCast(m_parentAsWindow, wxScrolledWindow) != NULL )
+            {
+                sizer->FitInside(m_parentAsWindow);
+            }
+            else
+            {
+                sizer->Fit(m_parentAsWindow);
+            }
+        }

         m_node = nd;
 
         m_node = nd;
 

-        if (m_parentAsWindow->GetWindowStyle() & (wxRESIZE_BOX | wxRESIZE_BORDER))
+        if (m_parentAsWindow->IsTopLevel())
+        {

             sizer->SetSizeHints(m_parentAsWindow);
             sizer->SetSizeHints(m_parentAsWindow);

+        }

     }
     }

-        
+

     return sizer;
 }
 
     return sizer;
 }
 


@@ -240,8 +310,9 @@ wxObject* wxSizerXmlHandler::Handle_sizer()
 wxSizer*  wxSizerXmlHandler::Handle_wxBoxSizer()
 {
     return new wxBoxSizer(GetStyle(wxT("orient"), wxHORIZONTAL));
 wxSizer*  wxSizerXmlHandler::Handle_wxBoxSizer()
 {
     return new wxBoxSizer(GetStyle(wxT("orient"), wxHORIZONTAL));

-}        
-    
+}
+
+#if wxUSE_STATBOX

 wxSizer*  wxSizerXmlHandler::Handle_wxStaticBoxSizer()
 {
     return new wxStaticBoxSizer(
 wxSizer*  wxSizerXmlHandler::Handle_wxStaticBoxSizer()
 {
     return new wxStaticBoxSizer(


@@ -253,7 +324,8 @@ wxSizer*  wxSizerXmlHandler::Handle_wxStaticBoxSizer()
                             GetName()),
             GetStyle(wxT("orient"), wxHORIZONTAL));
 }
                             GetName()),
             GetStyle(wxT("orient"), wxHORIZONTAL));
 }

-    
+#endif // wxUSE_STATBOX
+

 wxSizer*  wxSizerXmlHandler::Handle_wxGridSizer()
 {
     return new wxGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),
 wxSizer*  wxSizerXmlHandler::Handle_wxGridSizer()
 {
     return new wxGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),


@@ -261,46 +333,114 @@ wxSizer*  wxSizerXmlHandler::Handle_wxGridSizer()
 }
 
 
 }
 
 

-wxSizer*  wxSizerXmlHandler::Handle_wxFlexGridSizer()
+wxFlexGridSizer* wxSizerXmlHandler::Handle_wxFlexGridSizer()

 {
 {

-    wxFlexGridSizer *sizer = 
-        new wxFlexGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),
-                            GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
-    SetGrowables(sizer, wxT("growablerows"), true);
-    SetGrowables(sizer, wxT("growablecols"), false);
-    return sizer;
+    if ( !ValidateGridSizerChildren() )
+        return NULL;
+    return new wxFlexGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),
+                               GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));

 }
 
 
 }
 
 

-wxSizer*  wxSizerXmlHandler::Handle_wxGridBagSizer()
+wxGridBagSizer* wxSizerXmlHandler::Handle_wxGridBagSizer()
+{
+    if ( !ValidateGridSizerChildren() )
+        return NULL;
+    return new wxGridBagSizer(GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
+}
+
+wxSizer*  wxSizerXmlHandler::Handle_wxWrapSizer()

 {
 {

-    wxGridBagSizer *sizer = 
-        new wxGridBagSizer(GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
-    SetGrowables(sizer, wxT("growablerows"), true);
-    SetGrowables(sizer, wxT("growablecols"), false);
+    wxWrapSizer *sizer = new wxWrapSizer(GetStyle("orient"), GetStyle("flag"));

     return sizer;
 }
 
 
     return sizer;
 }
 
 

+bool wxSizerXmlHandler::ValidateGridSizerChildren()
+{
+    int rows = GetLong("rows");
+    int cols = GetLong("cols");
+
+    if  ( rows && cols )
+    {
+        // fixed number of cells, need to verify children count
+        int children = 0;
+        for ( wxXmlNode *n = m_node->GetChildren(); n; n = n->GetNext() )
+        {
+            if ( n->GetType() == wxXML_ELEMENT_NODE &&
+                 (n->GetName() == "object" || n->GetName() == "object_ref") )
+            {
+                children++;
+            }
+        }
+
+        if ( children > rows * cols )
+        {
+            ReportError
+            (
+                wxString::Format
+                (
+                    "too many children in grid sizer: %d > %d x %d"
+                    " (consider omitting the number of rows or columns)",
+                    children,
+                    cols,
+                    rows
+                )
+            );
+            return false;
+        }
+    }
+
+    return true;
+}

 
 
 void wxSizerXmlHandler::SetGrowables(wxFlexGridSizer* sizer,
                                      const wxChar* param,
                                      bool rows)
 {
 
 
 void wxSizerXmlHandler::SetGrowables(wxFlexGridSizer* sizer,
                                      const wxChar* param,
                                      bool rows)
 {

+    int nrows, ncols;
+    sizer->CalcRowsCols(nrows, ncols);
+    const int nslots = rows ? nrows : ncols;
+

     wxStringTokenizer tkn;
     wxStringTokenizer tkn;

-    unsigned long l;

     tkn.SetString(GetParamValue(param), wxT(","));
     tkn.SetString(GetParamValue(param), wxT(","));

+

     while (tkn.HasMoreTokens())
     {
     while (tkn.HasMoreTokens())
     {

+        unsigned long l;

         if (!tkn.GetNextToken().ToULong(&l))
         if (!tkn.GetNextToken().ToULong(&l))

-            wxLogError(wxT("growable[rows|cols] must be comma-separated list of row numbers"));
-        else {
-            if (rows)
-                sizer->AddGrowableRow(l);
-            else
-                sizer->AddGrowableCol(l);
+        {
+            ReportParamError
+            (
+                param,
+                "value must be comma-separated list of row numbers"
+            );
+            break;

         }
         }

+
+        if ( (int)l >= nslots )
+        {
+            ReportParamError
+            (
+                param,
+                wxString::Format
+                (
+                    "invalid %s index %d: must be less than %d",
+                    rows ? "row" : "column",
+                    l,
+                    nslots
+                )
+            );
+
+            // ignore incorrect value, still try to process the rest
+            continue;
+        }
+
+        if (rows)
+            sizer->AddGrowableRow(l);
+        else
+            sizer->AddGrowableCol(l);

     }
 }
 
     }
 }
 


@@ -338,17 +478,20 @@ void wxSizerXmlHandler::SetSizerItemAttributes(wxSizerItem* sitem)
     sitem->SetBorder(GetDimension(wxT("border")));
     wxSize sz = GetSize(wxT("minsize"));
     if (!(sz == wxDefaultSize))
     sitem->SetBorder(GetDimension(wxT("border")));
     wxSize sz = GetSize(wxT("minsize"));
     if (!(sz == wxDefaultSize))

-        sitem->SetInitSize(sz.x, sz.y);
+        sitem->SetMinSize(sz);

     sz = GetSize(wxT("ratio"));
     if (!(sz == wxDefaultSize))
         sitem->SetRatio(sz);
     sz = GetSize(wxT("ratio"));
     if (!(sz == wxDefaultSize))
         sitem->SetRatio(sz);

-    
+

     if (m_isGBS)
     {
         wxGBSizerItem* gbsitem = (wxGBSizerItem*)sitem;
         gbsitem->SetPos(GetGBPos(wxT("cellpos")));
         gbsitem->SetSpan(GetGBSpan(wxT("cellspan")));
     if (m_isGBS)
     {
         wxGBSizerItem* gbsitem = (wxGBSizerItem*)sitem;
         gbsitem->SetPos(GetGBPos(wxT("cellpos")));
         gbsitem->SetSpan(GetGBSpan(wxT("cellspan")));

-    }    
+    }
+
+    // record the id of the item, if any, for use by XRCSIZERITEM()
+    sitem->SetId(GetID());

 }
 
 void wxSizerXmlHandler::AddSizerItem(wxSizerItem* sitem)
 }
 
 void wxSizerXmlHandler::AddSizerItem(wxSizerItem* sitem)


@@ -358,13 +501,74 @@ void wxSizerXmlHandler::AddSizerItem(wxSizerItem* sitem)
     else
         m_parentSizer->Add(sitem);
 }
     else
         m_parentSizer->Add(sitem);
 }

-   

 
 
 
 
 
 

+//-----------------------------------------------------------------------------
+// wxStdDialogButtonSizerXmlHandler
+//-----------------------------------------------------------------------------
+#if wxUSE_BUTTON
+
+IMPLEMENT_DYNAMIC_CLASS(wxStdDialogButtonSizerXmlHandler, wxXmlResourceHandler)
+
+wxStdDialogButtonSizerXmlHandler::wxStdDialogButtonSizerXmlHandler()
+    : m_isInside(false), m_parentSizer(NULL)
+{
+}
+
+wxObject *wxStdDialogButtonSizerXmlHandler::DoCreateResource()
+{
+    if (m_class == wxT("wxStdDialogButtonSizer"))
+    {
+        wxASSERT( !m_parentSizer );
+
+        wxSizer *s = m_parentSizer = new wxStdDialogButtonSizer;
+        m_isInside = true;
+
+        CreateChildren(m_parent, true/*only this handler*/);
+
+        m_parentSizer->Realize();
+
+        m_isInside = false;
+        m_parentSizer = NULL;
+
+        return s;
+    }
+    else // m_class == "button"
+    {
+        wxASSERT( m_parentSizer );

 
 

+        // find the item to be managed by this sizeritem
+        wxXmlNode *n = GetParamNode(wxT("object"));
+        if ( !n )
+            n = GetParamNode(wxT("object_ref"));

 
 

+        // did we find one?
+        if (n)
+        {
+            wxObject *item = CreateResFromNode(n, m_parent, NULL);
+            wxButton *button = wxDynamicCast(item, wxButton);

 
 

+            if (button)
+                m_parentSizer->AddButton(button);
+            else
+                ReportError(n, "expected wxButton");

 
 

+            return item;
+        }
+        else /*n == NULL*/
+        {
+            ReportError("no button within wxStdDialogButtonSizer");
+            return NULL;
+        }
+    }
+}

 
 

+bool wxStdDialogButtonSizerXmlHandler::CanHandle(wxXmlNode *node)
+{
+    return (!m_isInside && IsOfClass(node, wxT("wxStdDialogButtonSizer"))) ||
+           (m_isInside && IsOfClass(node, wxT("button")));
+}
+#endif // wxUSE_BUTTON

 
 

+#endif // wxUSE_XRC