Prevents crashes caused by negative line count being passed to wrapping functions...

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

/////////////////////////////////////////////////////////////////////////////
// Name:        src/xrc/xh_notbk.cpp
// Purpose:     XRC resource for wxNotebook
// Author:      Vaclav Slavik
// Created:     2000/03/21
// RCS-ID:      $Id$
// Copyright:   (c) 2000 Vaclav Slavik
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

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

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_XRC && wxUSE_NOTEBOOK

#include "wx/xrc/xh_notbk.h"

#ifndef WX_PRECOMP
    #include "wx/log.h"
    #include "wx/sizer.h"
#endif

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

IMPLEMENT_DYNAMIC_CLASS(wxNotebookXmlHandler, wxXmlResourceHandler)

wxNotebookXmlHandler::wxNotebookXmlHandler()
                     :wxXmlResourceHandler(),
                      m_isInside(false),
                      m_notebook(NULL)
{
    XRC_ADD_STYLE(wxBK_DEFAULT);
    XRC_ADD_STYLE(wxBK_LEFT);
    XRC_ADD_STYLE(wxBK_RIGHT);
    XRC_ADD_STYLE(wxBK_TOP);
    XRC_ADD_STYLE(wxBK_BOTTOM);

#if WXWIN_COMPATIBILITY_2_6
    XRC_ADD_STYLE(wxNB_DEFAULT);
    XRC_ADD_STYLE(wxNB_LEFT);
    XRC_ADD_STYLE(wxNB_RIGHT);
    XRC_ADD_STYLE(wxNB_TOP);
    XRC_ADD_STYLE(wxNB_BOTTOM);
#endif

    XRC_ADD_STYLE(wxNB_FIXEDWIDTH);
    XRC_ADD_STYLE(wxNB_MULTILINE);
    XRC_ADD_STYLE(wxNB_NOPAGETHEME);

    AddWindowStyles();
}

wxObject *wxNotebookXmlHandler::DoCreateResource()
{
    if (m_class == wxT("notebookpage"))
    {
        wxXmlNode *n = GetParamNode(wxT("object"));

        if ( !n )
            n = GetParamNode(wxT("object_ref"));

        if (n)
        {
            bool old_ins = m_isInside;
            m_isInside = false;
            wxObject *item = CreateResFromNode(n, m_notebook, NULL);
            m_isInside = old_ins;
            wxWindow *wnd = wxDynamicCast(item, wxWindow);

            if (wnd)
            {
                m_notebook->AddPage(wnd, GetText(wxT("label")),
                                         GetBool(wxT("selected")));
                if ( HasParam(wxT("bitmap")) )
                {
                    wxBitmap bmp = GetBitmap(wxT("bitmap"), wxART_OTHER);
                    wxImageList *imgList = m_notebook->GetImageList();
                    if ( imgList == NULL )
                    {
                        imgList = new wxImageList( bmp.GetWidth(), bmp.GetHeight() );
                        m_notebook->AssignImageList( imgList );
                    }
                    int imgIndex = imgList->Add(bmp);
                    m_notebook->SetPageImage(m_notebook->GetPageCount()-1, imgIndex );
                }
            }
            else
                wxLogError(wxT("Error in resource."));
            return wnd;
        }
        else
        {
            wxLogError(wxT("Error in resource: no control within notebook's <page> tag."));
            return NULL;
        }
    }

    else
    {
        XRC_MAKE_INSTANCE(nb, wxNotebook)

        nb->Create(m_parentAsWindow,
                   GetID(),
                   GetPosition(), GetSize(),
                   GetStyle(wxT("style")),
                   GetName());

        SetupWindow(nb);

        wxNotebook *old_par = m_notebook;
        m_notebook = nb;
        bool old_ins = m_isInside;
        m_isInside = true;
        CreateChildren(m_notebook, true/*only this handler*/);
        m_isInside = old_ins;
        m_notebook = old_par;

        return nb;
    }
}

bool wxNotebookXmlHandler::CanHandle(wxXmlNode *node)
{
    return ((!m_isInside && IsOfClass(node, wxT("wxNotebook"))) ||
            (m_isInside && IsOfClass(node, wxT("notebookpage"))));
}

#endif // wxUSE_XRC && wxUSE_NOTEBOOK