src/common/datavcmn.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/common/datavcmn.cpp
// Purpose:     wxDataViewCtrl base classes and common parts
// Author:      Robert Roebling
// Created:     2006/02/20
// RCS-ID:      $Id$
// Copyright:   (c) 2006, Robert Roebling
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

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

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_DATAVIEWCTRL

#include "wx/dataview.h"
#include "wx/spinctrl.h"

#include "wx/weakref.h"

#ifndef WX_PRECOMP
    #include "wx/dc.h"
    #include "wx/settings.h"
    #include "wx/log.h"
    #include "wx/icon.h"
    #include "wx/crt.h"
#endif

const wxChar wxDataViewCtrlNameStr[] = wxT("dataviewCtrl");


bool operator == (const wxDataViewItem &left, const wxDataViewItem &right)
{
    return (left.GetID() == right.GetID() );
}

#ifdef __WXDEBUG__
void wxDataViewItem::Print(const wxString& text) const
{
    wxPrintf(wxT("item %s: %lu\n"), text.GetData(), wxPtrToUInt(m_id));
}
#endif

// ---------------------------------------------------------
// wxDataViewModelNotifier
// ---------------------------------------------------------

#include "wx/listimpl.cpp"
WX_DEFINE_LIST(wxDataViewModelNotifiers)

bool wxDataViewModelNotifier::ItemsAdded( const wxDataViewItem &parent, const wxDataViewItemArray &items )
{
    size_t count = items.GetCount();
    size_t i;
    for (i = 0; i < count; i++)
        if (!ItemAdded( parent, items[i] )) return false;

    return true;
}

bool wxDataViewModelNotifier::ItemsDeleted( const wxDataViewItem &parent, const wxDataViewItemArray &items )
{
    size_t count = items.GetCount();
    size_t i;
    for (i = 0; i < count; i++)
        if (!ItemDeleted( parent, items[i] )) return false;

    return true;
}

bool wxDataViewModelNotifier::ItemsChanged( const wxDataViewItemArray &items )
{
    size_t count = items.GetCount();
    size_t i;
    for (i = 0; i < count; i++)
        if (!ItemChanged( items[i] )) return false;

    return true;
}

// ---------------------------------------------------------
// wxDataViewModel
// ---------------------------------------------------------

wxDataViewModel::wxDataViewModel()
{
    m_notifiers.DeleteContents( true );
}

bool wxDataViewModel::ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item )
{
    bool ret = true;

    wxDataViewModelNotifiers::iterator iter;
    for (iter = m_notifiers.begin(); iter != m_notifiers.end(); ++iter)
    {
        wxDataViewModelNotifier* notifier = *iter;
        if (!notifier->ItemAdded( parent, item ))
            ret = false;
    }

    return ret;
}

bool wxDataViewModel::ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
{
    bool ret = true;

    wxDataViewModelNotifiers::iterator iter;
    for (iter = m_notifiers.begin(); iter != m_notifiers.end(); ++iter)
    {
        wxDataViewModelNotifier* notifier = *iter;
        if (!notifier->ItemDeleted( parent, item ))
            ret = false;
    }

    return ret;
}

bool wxDataViewModel::ItemChanged( const wxDataViewItem &item )
{
    bool ret = true;

    wxDataViewModelNotifiers::iterator iter;
    for (iter = m_notifiers.begin(); iter != m_notifiers.end(); ++iter)
    {
        wxDataViewModelNotifier* notifier = *iter;
        if (!notifier->ItemChanged( item ))
            ret = false;
    }

    return ret;
}

bool wxDataViewModel::ItemsAdded( const wxDataViewItem &parent, const wxDataViewItemArray &items )
{
    bool ret = true;

    wxDataViewModelNotifiers::iterator iter;
    for (iter = m_notifiers.begin(); iter != m_notifiers.end(); ++iter)
    {
        wxDataViewModelNotifier* notifier = *iter;
        if (!notifier->ItemsAdded( parent, items ))
            ret = false;
    }

    return ret;
}

bool wxDataViewModel::ItemsDeleted( const wxDataViewItem &parent, const wxDataViewItemArray &items )
{
    bool ret = true;

    wxDataViewModelNotifiers::iterator iter;
    for (iter = m_notifiers.begin(); iter != m_notifiers.end(); ++iter)
    {
        wxDataViewModelNotifier* notifier = *iter;
        if (!notifier->ItemsDeleted( parent, items ))
            ret = false;
    }

    return ret;
}

bool wxDataViewModel::ItemsChanged( const wxDataViewItemArray &items )
{
    bool ret = true;

    wxDataViewModelNotifiers::iterator iter;
    for (iter = m_notifiers.begin(); iter != m_notifiers.end(); ++iter)
    {
        wxDataViewModelNotifier* notifier = *iter;
        if (!notifier->ItemsChanged( items ))
            ret = false;
    }

    return ret;
}

bool wxDataViewModel::ValueChanged( const wxDataViewItem &item, unsigned int col )
{
    bool ret = true;

    wxDataViewModelNotifiers::iterator iter;
    for (iter = m_notifiers.begin(); iter != m_notifiers.end(); ++iter)
    {
        wxDataViewModelNotifier* notifier = *iter;
        if (!notifier->ValueChanged( item, col ))
            ret = false;
    }

    return ret;
}

bool wxDataViewModel::Cleared()
{
    bool ret = true;

    wxDataViewModelNotifiers::iterator iter;
    for (iter = m_notifiers.begin(); iter != m_notifiers.end(); ++iter)
    {
        wxDataViewModelNotifier* notifier = *iter;
        if (!notifier->Cleared())
            ret = false;
    }

    return ret;
}

void wxDataViewModel::Resort()
{
    wxDataViewModelNotifiers::iterator iter;
    for (iter = m_notifiers.begin(); iter != m_notifiers.end(); ++iter)
    {
        wxDataViewModelNotifier* notifier = *iter;
        notifier->Resort();
    }
}

void wxDataViewModel::AddNotifier( wxDataViewModelNotifier *notifier )
{
    m_notifiers.push_back( notifier );
    notifier->SetOwner( this );
}

void wxDataViewModel::RemoveNotifier( wxDataViewModelNotifier *notifier )
{
    m_notifiers.DeleteObject( notifier );
}

int wxDataViewModel::Compare( const wxDataViewItem &item1, const wxDataViewItem &item2,
                              unsigned int column, bool ascending )
{
    // sort branches before leaves
    bool item1_is_container = IsContainer(item1);
    bool item2_is_container = IsContainer(item2);

    if (item1_is_container && !item2_is_container)
        return 1;
    if (item2_is_container && !item1_is_container)
        return -1;

    wxVariant value1,value2;
    GetValue( value1, item1, column );
    GetValue( value2, item2, column );

    if (!ascending)
    {
        wxVariant temp = value1;
        value1 = value2;
        value2 = temp;
    }

    if (value1.GetType() == wxT("string"))
    {
        wxString str1 = value1.GetString();
        wxString str2 = value2.GetString();
        int res = str1.Cmp( str2 );
        if (res)
            return res;
    }
    else if (value1.GetType() == wxT("long"))
    {
        long l1 = value1.GetLong();
        long l2 = value2.GetLong();
        long res = l1-l2;
        if (res)
            return res;
    }
    else if (value1.GetType() == wxT("double"))
    {
        double d1 = value1.GetDouble();
        double d2 = value2.GetDouble();
        if (d1 < d2)
            return 1;
        if (d1 > d2)
            return -1;
    }
    else if (value1.GetType() == wxT("datetime"))
    {
        wxDateTime dt1 = value1.GetDateTime();
        wxDateTime dt2 = value2.GetDateTime();
        if (dt1.IsEarlierThan(dt2))
            return 1;
        if (dt2.IsEarlierThan(dt1))
            return -11;
    }

    // items must be different
    wxUIntPtr id1 = wxPtrToUInt(item1.GetID()),
              id2 = wxPtrToUInt(item2.GetID());

    return ascending ? id1 - id2 : id2 - id1;
}

// ---------------------------------------------------------
// wxDataViewIndexListModel
// ---------------------------------------------------------

static int my_sort( int *v1, int *v2 )
{
   return *v2-*v1;
}


wxDataViewIndexListModel::wxDataViewIndexListModel( unsigned int initial_size )
{
    // IDs are ordered until an item gets deleted or inserted
    m_ordered = true;

    // build initial index
    unsigned int i;
    for (i = 1; i < initial_size+1; i++)
            m_hash.Add( wxUIntToPtr(i) );
    m_lastIndex = initial_size + 1;
}

wxDataViewIndexListModel::~wxDataViewIndexListModel()
{
}

void wxDataViewIndexListModel::Reset( unsigned int new_size )
{
    m_hash.Clear();

    // IDs are ordered until an item gets deleted or inserted
    m_ordered = true;

    // build initial index
    unsigned int i;
    for (i = 1; i < new_size+1; i++)
            m_hash.Add( wxUIntToPtr(i) );
    m_lastIndex = new_size + 1;

    wxDataViewModel::Cleared();
}

void wxDataViewIndexListModel::RowPrepended()
{
    m_ordered = false;

    unsigned int id = m_lastIndex++;
    m_hash.Insert( wxUIntToPtr(id), 0 );
    wxDataViewItem item( wxUIntToPtr(id) );
    ItemAdded( wxDataViewItem(0), item );
}

void wxDataViewIndexListModel::RowInserted( unsigned int before )
{
    m_ordered = false;

    unsigned int id = m_lastIndex++;
    m_hash.Insert( wxUIntToPtr(id), before );
    wxDataViewItem item( wxUIntToPtr(id) );
    ItemAdded( wxDataViewItem(0), item );
}

void wxDataViewIndexListModel::RowAppended()
{
    unsigned int id = m_lastIndex++;
    m_hash.Add( wxUIntToPtr(id) );
    wxDataViewItem item( wxUIntToPtr(id) );
    ItemAdded( wxDataViewItem(0), item );
}

void wxDataViewIndexListModel::RowDeleted( unsigned int row )
{
    m_ordered = false;

    wxDataViewItem item( m_hash[row] );
    wxDataViewModel::ItemDeleted( wxDataViewItem(0), item );
    m_hash.RemoveAt( row );
}

void wxDataViewIndexListModel::RowsDeleted( const wxArrayInt &rows )
{
    wxArrayInt sorted = rows;
    sorted.Sort( my_sort );

    m_ordered = false;

    wxDataViewItemArray array;
    unsigned int i;
    for (i = 0; i < rows.GetCount(); i++)
    {
            wxDataViewItem item( m_hash[rows[i]] );
            array.Add( item );
    }
    wxDataViewModel::ItemsDeleted( wxDataViewItem(0), array );

    for (i = 0; i < sorted.GetCount(); i++)
           m_hash.RemoveAt( sorted[i] );
}

void wxDataViewIndexListModel::RowChanged( unsigned int row )
{
    wxDataViewModel::ItemChanged( GetItem(row) );
}

void wxDataViewIndexListModel::RowValueChanged( unsigned int row, unsigned int col )
{
    wxDataViewModel::ValueChanged( GetItem(row), col );
}

unsigned int wxDataViewIndexListModel::GetRow( const wxDataViewItem &item ) const
{
    if (m_ordered)
    {
            unsigned int pos = wxPtrToUInt( item.GetID() );
            return pos-1;
    }

    // assert for not found
    return (unsigned int) m_hash.Index( item.GetID() );
}

wxDataViewItem wxDataViewIndexListModel::GetItem( unsigned int row ) const
{
    wxASSERT( row < m_hash.GetCount() );
    return wxDataViewItem( m_hash[row] );
}

bool wxDataViewIndexListModel::HasDefaultCompare() const
{
    return !m_ordered;
}

int wxDataViewIndexListModel::Compare(const wxDataViewItem& item1,
                                      const wxDataViewItem& item2,
                                      unsigned int WXUNUSED(column),
                                      bool ascending)
{
    if (m_ordered)
    {
        unsigned int pos1 = wxPtrToUInt(item1.GetID());
        unsigned int pos2 = wxPtrToUInt(item2.GetID());

        if (ascending)
            return pos1 - pos2;
        else
            return pos2 - pos1;
    }

    if (ascending)
        return GetRow(item1) - GetRow(item2);

    return GetRow(item2) - GetRow(item1);
}

void wxDataViewIndexListModel::GetValue( wxVariant &variant,
                           const wxDataViewItem &item, unsigned int col ) const
{
    GetValue( variant, GetRow(item), col );
}

bool wxDataViewIndexListModel::SetValue( const wxVariant &variant,
                           const wxDataViewItem &item, unsigned int col )
{
    return SetValue( variant, GetRow(item), col );
}

bool wxDataViewIndexListModel::GetAttr( const wxDataViewItem &item, unsigned int col, wxDataViewItemAttr &attr )
{
    return GetAttr( GetRow(item), col, attr );
}

wxDataViewItem wxDataViewIndexListModel::GetParent( const wxDataViewItem & WXUNUSED(item) ) const
{
    return wxDataViewItem(0);
}

bool wxDataViewIndexListModel::IsContainer( const wxDataViewItem &item ) const
{
    // only the invisible root item has children
    if (!item.IsOk())
        return true;

    return false;
}

unsigned int wxDataViewIndexListModel::GetChildren( const wxDataViewItem &item, wxDataViewItemArray &children ) const
{
    if (item.IsOk())
        return 0;

    children = m_hash;

    return m_hash.GetCount();
}

// ---------------------------------------------------------
// wxDataViewVirtualListModel
// ---------------------------------------------------------

#ifndef __WXMAC__

wxDataViewVirtualListModel::wxDataViewVirtualListModel( unsigned int initial_size )
{
    m_lastIndex = initial_size-1;
}

wxDataViewVirtualListModel::~wxDataViewVirtualListModel()
{
}

void wxDataViewVirtualListModel::Reset( unsigned int new_size )
{
    m_lastIndex = new_size-1;

    wxDataViewModel::Cleared();
}

void wxDataViewVirtualListModel::RowPrepended()
{
    m_lastIndex++;
    wxDataViewItem item( NULL );
    ItemAdded( wxDataViewItem(0), item );
}

void wxDataViewVirtualListModel::RowInserted( unsigned int before )
{
    m_lastIndex++;
    wxDataViewItem item( wxUIntToPtr(before) );
    ItemAdded( wxDataViewItem(0), item );
}

void wxDataViewVirtualListModel::RowAppended()
{
    m_lastIndex++;
    wxDataViewItem item( wxUIntToPtr(m_lastIndex) );
    ItemAdded( wxDataViewItem(0), item );
}

void wxDataViewVirtualListModel::RowDeleted( unsigned int row )
{
    wxDataViewItem item( wxUIntToPtr(row) );
    wxDataViewModel::ItemDeleted( wxDataViewItem(0), item );
    m_lastIndex++;
}

void wxDataViewVirtualListModel::RowsDeleted( const wxArrayInt &rows )
{
    wxArrayInt sorted = rows;
    sorted.Sort( my_sort );

    wxDataViewItemArray array;
    unsigned int i;
    for (i = 0; i < sorted.GetCount(); i++)
    {
            wxDataViewItem item( wxUIntToPtr(sorted[i]) );
            array.Add( item );
    }
    wxDataViewModel::ItemsDeleted( wxDataViewItem(0), array );

    m_lastIndex -= rows.GetCount();
}

void wxDataViewVirtualListModel::RowChanged( unsigned int row )
{
    wxDataViewModel::ItemChanged( GetItem(row) );
}

void wxDataViewVirtualListModel::RowValueChanged( unsigned int row, unsigned int col )
{
    wxDataViewModel::ValueChanged( GetItem(row), col );
}

unsigned int wxDataViewVirtualListModel::GetRow( const wxDataViewItem &item ) const
{
    return wxPtrToUInt( item.GetID() );
}

wxDataViewItem wxDataViewVirtualListModel::GetItem( unsigned int row ) const
{
    return wxDataViewItem( wxUIntToPtr(row)  );
}

bool wxDataViewVirtualListModel::HasDefaultCompare() const
{
    return true;
}

int wxDataViewVirtualListModel::Compare(const wxDataViewItem& item1,
                                      const wxDataViewItem& item2,
                                      unsigned int WXUNUSED(column),
                                      bool ascending)
{
    unsigned int pos1 = wxPtrToUInt(item1.GetID());
    unsigned int pos2 = wxPtrToUInt(item2.GetID());

    if (ascending)
       return pos1 - pos2;
    else
       return pos2 - pos1;
}

void wxDataViewVirtualListModel::GetValue( wxVariant &variant,
                           const wxDataViewItem &item, unsigned int col ) const
{
    GetValue( variant, GetRow(item), col );
}

bool wxDataViewVirtualListModel::SetValue( const wxVariant &variant,
                           const wxDataViewItem &item, unsigned int col )
{
    return SetValue( variant, GetRow(item), col );
}

bool wxDataViewVirtualListModel::GetAttr( const wxDataViewItem &item, unsigned int col, wxDataViewItemAttr &attr )
{
    return GetAttr( GetRow(item), col, attr );
}

wxDataViewItem wxDataViewVirtualListModel::GetParent( const wxDataViewItem & WXUNUSED(item) ) const
{
    return wxDataViewItem(0);
}

bool wxDataViewVirtualListModel::IsContainer( const wxDataViewItem &item ) const
{
    // only the invisible root item has children
    if (!item.IsOk())
        return true;

    return false;
}

unsigned int wxDataViewVirtualListModel::GetChildren( const wxDataViewItem &WXUNUSED(item), wxDataViewItemArray &WXUNUSED(children) ) const
{
    return 0;  // should we report an error ?
}

#endif  // __WXMAC__

//-----------------------------------------------------------------------------
// wxDataViewIconText
//-----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxDataViewIconText,wxObject)

IMPLEMENT_VARIANT_OBJECT_EXPORTED(wxDataViewIconText, WXDLLIMPEXP_ADV)

bool operator == (const wxDataViewIconText &one, const wxDataViewIconText &two)
{
    if (one.GetText() != two.GetText()) return false;
    if (one.IsSameAs(two)) return false;
    return true;
}

// ---------------------------------------------------------
// wxDataViewRendererBase
// ---------------------------------------------------------

IMPLEMENT_ABSTRACT_CLASS(wxDataViewRendererBase, wxObject)

wxDataViewRendererBase::wxDataViewRendererBase( const wxString &varianttype,
                                                wxDataViewCellMode WXUNUSED(mode),
                                                int WXUNUSED(align) )
{
    m_variantType = varianttype;
    m_owner = NULL;
}

wxDataViewRendererBase::~wxDataViewRendererBase()
{
}

const wxDataViewCtrl* wxDataViewRendererBase::GetView() const
{
    return wx_const_cast(wxDataViewRendererBase*, this)->GetOwner()->GetOwner();
}

class wxKillRef: public wxWindowRef
{
public:
   wxKillRef( wxWindow *win ) : wxWindowRef( win ) { }
   virtual void OnObjectDestroy()
   {
      get()->PopEventHandler( true );
      m_pobj = NULL;
      delete this;
   }
};

bool wxDataViewRendererBase::StartEditing( const wxDataViewItem &item, wxRect labelRect )
{
    m_item = item; // remember for later

    unsigned int col = GetOwner()->GetModelColumn();
    wxVariant value;
    GetOwner()->GetOwner()->GetModel()->GetValue( value, item, col );

    m_editorCtrl = CreateEditorCtrl( GetOwner()->GetOwner()->GetMainWindow(), labelRect, value );
    (void) new wxKillRef( m_editorCtrl.get() );

    wxDataViewEditorCtrlEvtHandler *handler =
        new wxDataViewEditorCtrlEvtHandler( m_editorCtrl, (wxDataViewRenderer*) this );

    m_editorCtrl->PushEventHandler( handler );

#if defined(__WXGTK20__) && !defined(wxUSE_GENERICDATAVIEWCTRL)
    handler->SetFocusOnIdle();
#else
    m_editorCtrl->SetFocus();
#endif

    // Now we should send Editing Started event
    wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_EDITING_STARTED, GetOwner()->GetOwner()->GetId() );
    event.SetDataViewColumn( GetOwner() );
    event.SetModel( GetOwner()->GetOwner()->GetModel() );
    event.SetItem( item );
    GetOwner()->GetOwner()->GetEventHandler()->ProcessEvent( event );

    return true;
}

void wxDataViewRendererBase::CancelEditing()
{
    GetOwner()->GetOwner()->GetMainWindow()->SetFocus();

    m_editorCtrl->Hide();
    wxPendingDelete.Append( m_editorCtrl );
}

bool wxDataViewRendererBase::FinishEditing()
{
    wxVariant value;
    GetValueFromEditorCtrl( m_editorCtrl, value );

    GetOwner()->GetOwner()->GetMainWindow()->SetFocus();

    m_editorCtrl->Hide();
    wxPendingDelete.Append( m_editorCtrl );

    if (!Validate(value))
        return false;

    unsigned int col = GetOwner()->GetModelColumn();
    GetOwner()->GetOwner()->GetModel()->SetValue( value, m_item, col );
    GetOwner()->GetOwner()->GetModel()->ValueChanged( m_item, col );

    // Now we should send Editing Done event
    wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_EDITING_DONE, GetOwner()->GetOwner()->GetId() );
    event.SetDataViewColumn( GetOwner() );
    event.SetModel( GetOwner()->GetOwner()->GetModel() );
    event.SetItem( m_item );
    GetOwner()->GetOwner()->GetEventHandler()->ProcessEvent( event );

    return true;
}

//-----------------------------------------------------------------------------
// wxDataViewEditorCtrlEvtHandler
//-----------------------------------------------------------------------------

BEGIN_EVENT_TABLE(wxDataViewEditorCtrlEvtHandler, wxEvtHandler)
    EVT_CHAR           (wxDataViewEditorCtrlEvtHandler::OnChar)
    EVT_KILL_FOCUS     (wxDataViewEditorCtrlEvtHandler::OnKillFocus)
    EVT_IDLE           (wxDataViewEditorCtrlEvtHandler::OnIdle)
END_EVENT_TABLE()

wxDataViewEditorCtrlEvtHandler::wxDataViewEditorCtrlEvtHandler(
                                wxControl *editorCtrl,
                                wxDataViewRenderer *owner )
{
    m_owner = owner;
    m_editorCtrl = editorCtrl;

    m_finished = false;
}

void wxDataViewEditorCtrlEvtHandler::OnIdle( wxIdleEvent &event )
{
    if (m_focusOnIdle)
    {
        m_focusOnIdle = false;
        if (wxWindow::FindFocus() != m_editorCtrl)
            m_editorCtrl->SetFocus();
    }

    event.Skip();
}

void wxDataViewEditorCtrlEvtHandler::OnChar( wxKeyEvent &event )
{
    switch ( event.m_keyCode )
    {
        case WXK_RETURN:
            m_finished = true;
            m_owner->FinishEditing();
            break;

        case WXK_ESCAPE:
            m_finished = true;
            m_owner->CancelEditing();
            break;

        default:
            event.Skip();
    }
}

void wxDataViewEditorCtrlEvtHandler::OnKillFocus( wxFocusEvent &event )
{
    if (!m_finished)
    {
        m_finished = true;
        m_owner->FinishEditing();
    }

    event.Skip();
}

// ---------------------------------------------------------
// wxDataViewColumnBase
// ---------------------------------------------------------

IMPLEMENT_ABSTRACT_CLASS(wxDataViewColumnBase, wxObject)

wxDataViewColumnBase::wxDataViewColumnBase(const wxString& WXUNUSED(title),
                                           wxDataViewRenderer *renderer,
                                           unsigned int model_column,
                                           int WXUNUSED(width),
                                           wxAlignment WXUNUSED(align),
                                           int WXUNUSED(flags))
{
    m_renderer = renderer;
    m_model_column = model_column;
    m_owner = NULL;
    m_renderer->SetOwner( (wxDataViewColumn*) this );

    // NOTE: the wxDataViewColumn's ctor must store the width, align, flags
    //       parameters inside the native control!
}

wxDataViewColumnBase::wxDataViewColumnBase(const wxBitmap& bitmap,
                                           wxDataViewRenderer *renderer,
                                           unsigned int model_column,
                                           int WXUNUSED(width),
                                           wxAlignment WXUNUSED(align),
                                           int WXUNUSED(flags) )
{
    m_renderer = renderer;
    m_model_column = model_column;
    m_bitmap = bitmap;
    m_owner = NULL;
    m_renderer->SetOwner( (wxDataViewColumn*) this );
}

wxDataViewColumnBase::~wxDataViewColumnBase()
{
    if (m_renderer)
        delete m_renderer;
}

int wxDataViewColumnBase::GetFlags() const
{
    int ret = 0;

    if (IsSortable())
        ret |= wxDATAVIEW_COL_SORTABLE;
    if (IsResizeable())
        ret |= wxDATAVIEW_COL_RESIZABLE;
    if (IsHidden())
        ret |= wxDATAVIEW_COL_HIDDEN;

    return ret;
}

void wxDataViewColumnBase::SetFlags(int flags)
{
    SetSortable((flags & wxDATAVIEW_COL_SORTABLE) != 0);
    SetResizeable((flags & wxDATAVIEW_COL_RESIZABLE) != 0);
    SetHidden((flags & wxDATAVIEW_COL_HIDDEN) != 0);
    SetReorderable((flags & wxDATAVIEW_COL_REORDERABLE) != 0);
}

// ---------------------------------------------------------
// wxDataViewCtrlBase
// ---------------------------------------------------------

IMPLEMENT_ABSTRACT_CLASS(wxDataViewCtrlBase, wxControl)

wxDataViewCtrlBase::wxDataViewCtrlBase()
{
    m_model = NULL;
    m_expander_column = 0;
    m_indent = 8;
}

wxDataViewCtrlBase::~wxDataViewCtrlBase()
{
    if (m_model)
    {
        m_model->DecRef();
        m_model = NULL;
    }
}

bool wxDataViewCtrlBase::AssociateModel( wxDataViewModel *model )
{
    if (m_model)
    {
        m_model->DecRef();   // discard old model, if any
    }

    // add our own reference to the new model:
    m_model = model;
    if (m_model)
    {
        m_model->IncRef();
    }

    return true;
}

wxDataViewModel* wxDataViewCtrlBase::GetModel()
{
    return m_model;
}

const wxDataViewModel* wxDataViewCtrlBase::GetModel() const
{
    return m_model;
}

wxDataViewColumn *
wxDataViewCtrlBase::AppendTextColumn( const wxString &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewTextRenderer( wxT("string"), mode ),
        model_column, width, align, flags );
    AppendColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::AppendIconTextColumn( const wxString &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewIconTextRenderer( wxT("wxDataViewIconText"), mode ),
        model_column, width, align, flags );
    AppendColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::AppendToggleColumn( const wxString &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{

    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewToggleRenderer( wxT("bool"), mode ),
        model_column, width, align, flags );
    AppendColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::AppendProgressColumn( const wxString &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewProgressRenderer( wxEmptyString, wxT("long"), mode ),
        model_column, width, align, flags );
    AppendColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::AppendDateColumn( const wxString &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewDateRenderer( wxT("datetime"), mode ),
        model_column, width, align, flags );
    AppendColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::AppendBitmapColumn( const wxString &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewBitmapRenderer( wxT("wxBitmap"), mode ),
        model_column, width, align, flags );
    AppendColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::AppendTextColumn( const wxBitmap &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewTextRenderer( wxT("string"), mode ),
        model_column, width, align, flags );
    AppendColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::AppendIconTextColumn( const wxBitmap &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewIconTextRenderer( wxT("wxDataViewIconText"), mode ),
        model_column, width, align, flags );
    AppendColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::AppendToggleColumn( const wxBitmap &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewToggleRenderer( wxT("bool"), mode ),
        model_column, width, align, flags );
    AppendColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::AppendProgressColumn( const wxBitmap &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewProgressRenderer( wxEmptyString, wxT("long"), mode ),
        model_column, width, align, flags );
    AppendColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::AppendDateColumn( const wxBitmap &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewDateRenderer( wxT("datetime"), mode ),
        model_column, width, align, flags );
    AppendColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::AppendBitmapColumn( const wxBitmap &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewBitmapRenderer( wxT("wxBitmap"), mode ),
        model_column, width, align, flags );
    AppendColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::PrependTextColumn( const wxString &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewTextRenderer( wxT("string"), mode ),
        model_column, width, align, flags );
    PrependColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::PrependIconTextColumn( const wxString &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewIconTextRenderer( wxT("wxDataViewIconText"), mode ),
        model_column, width, align, flags );
    PrependColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::PrependToggleColumn( const wxString &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{

    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewToggleRenderer( wxT("bool"), mode ),
        model_column, width, align, flags );
    PrependColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::PrependProgressColumn( const wxString &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewProgressRenderer( wxEmptyString, wxT("long"), mode ),
        model_column, width, align, flags );
    PrependColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::PrependDateColumn( const wxString &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewDateRenderer( wxT("datetime"), mode ),
        model_column, width, align, flags );
    PrependColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::PrependBitmapColumn( const wxString &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewBitmapRenderer( wxT("wxBitmap"), mode ),
        model_column, width, align, flags );
    PrependColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::PrependTextColumn( const wxBitmap &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewTextRenderer( wxT("string"), mode ),
        model_column, width, align, flags );
    PrependColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::PrependIconTextColumn( const wxBitmap &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewIconTextRenderer( wxT("wxDataViewIconText"), mode ),
        model_column, width, align, flags );
    PrependColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::PrependToggleColumn( const wxBitmap &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewToggleRenderer( wxT("bool"), mode ),
        model_column, width, align, flags );
    PrependColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::PrependProgressColumn( const wxBitmap &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewProgressRenderer( wxEmptyString, wxT("long"), mode ),
        model_column, width, align, flags );
    PrependColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::PrependDateColumn( const wxBitmap &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewDateRenderer( wxT("datetime"), mode ),
        model_column, width, align, flags );
    PrependColumn( ret );
    return ret;
}

wxDataViewColumn *
wxDataViewCtrlBase::PrependBitmapColumn( const wxBitmap &label, unsigned int model_column,
                            wxDataViewCellMode mode, int width, wxAlignment align, int flags )
{
    wxDataViewColumn *ret = new wxDataViewColumn( label,
        new wxDataViewBitmapRenderer( wxT("wxBitmap"), mode ),
        model_column, width, align, flags );
    PrependColumn( ret );
    return ret;
}

bool
wxDataViewCtrlBase::AppendColumn( wxDataViewColumn *col )
{
    col->SetOwner( (wxDataViewCtrl*) this );
    return true;
}

bool
wxDataViewCtrlBase::PrependColumn( wxDataViewColumn *col )
{
    col->SetOwner( (wxDataViewCtrl*) this );
    return true;
}

bool
wxDataViewCtrlBase::InsertColumn( unsigned int WXUNUSED(pos), wxDataViewColumn *col )
{
    col->SetOwner( (wxDataViewCtrl*) this );
    return true;
}

// ---------------------------------------------------------
// wxDataViewEvent
// ---------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxDataViewEvent,wxNotifyEvent)

DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED)

DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_ITEM_EDITING_STARTED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_ITEM_EDITING_DONE)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED)

DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU)

DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_DATAVIEW_COLUMN_REORDERED)


// -------------------------------------
// wxDataViewSpinRenderer
// -------------------------------------

wxDataViewSpinRenderer::wxDataViewSpinRenderer( int min, int max, wxDataViewCellMode mode, int alignment ) :
   wxDataViewCustomRenderer(wxT("long"), mode, alignment )
{
    m_min = min;
    m_max = max;
}

wxControl* wxDataViewSpinRenderer::CreateEditorCtrl( wxWindow *parent, wxRect labelRect, const wxVariant &value )
{
    long l = value;
    wxSize size = labelRect.GetSize();
#ifdef __WXMAC__
    size = wxSize( wxMax(70,labelRect.width ), -1 );
#endif
    wxString str;
    str.Printf( wxT("%d"), (int) l );
    wxSpinCtrl *sc = new wxSpinCtrl( parent, wxID_ANY, str,
               labelRect.GetTopLeft(), size, wxSP_ARROW_KEYS, m_min, m_max, l );
#ifdef __WXMAC__
    size = sc->GetSize();
    wxPoint pt = sc->GetPosition();
    sc->SetSize( pt.x - 4, pt.y - 4, size.x, size.y );
#endif

    return sc;
}

bool wxDataViewSpinRenderer::GetValueFromEditorCtrl( wxControl* editor, wxVariant &value )
{
    wxSpinCtrl *sc = (wxSpinCtrl*) editor;
    long l = sc->GetValue();
    value = l;
    return true;
}

bool wxDataViewSpinRenderer::Render( wxRect rect, wxDC *dc, int state )
{
    wxString str;
    str.Printf(wxT("%d"), (int) m_data );
    RenderText( str, 0, rect, dc, state );
    return true;
}

wxSize wxDataViewSpinRenderer::GetSize() const
{
    return wxSize(80,16);
}

bool wxDataViewSpinRenderer::SetValue( const wxVariant &value )
{
    m_data = value.GetLong();
    return true;
}

bool wxDataViewSpinRenderer::GetValue( wxVariant &value ) const
{
    value = m_data;
    return true;
}

//-----------------------------------------------------------------------------
// wxDataViewTreeStore
//-----------------------------------------------------------------------------

wxDataViewTreeStoreNode::wxDataViewTreeStoreNode(
        wxDataViewTreeStoreNode *parent,
        const wxString &text, const wxIcon &icon, wxClientData *data )
{
    m_parent = parent;
    m_text = text;
    m_icon = icon;
    m_data = data;
}

wxDataViewTreeStoreNode::~wxDataViewTreeStoreNode()
{
    if (m_data)
        delete m_data;
}

#include "wx/listimpl.cpp"
WX_DEFINE_LIST(wxDataViewTreeStoreNodeList)

wxDataViewTreeStoreContainerNode::wxDataViewTreeStoreContainerNode(
        wxDataViewTreeStoreNode *parent, const wxString &text,
        const wxIcon &icon, const wxIcon &expanded, wxClientData *data ) :
    wxDataViewTreeStoreNode( parent, text, icon, data )
{
    m_iconExpanded = expanded;
    m_isExpanded = false;
    m_children.DeleteContents(true);
}

wxDataViewTreeStoreContainerNode::~wxDataViewTreeStoreContainerNode()
{
}

//-----------------------------------------------------------------------------

wxDataViewTreeStore::wxDataViewTreeStore()
{
    m_root = new wxDataViewTreeStoreContainerNode( NULL, wxEmptyString );
}

wxDataViewTreeStore::~wxDataViewTreeStore()
{
    delete m_root;
}

wxDataViewItem wxDataViewTreeStore::AppendItem( const wxDataViewItem& parent,
        const wxString &text, const wxIcon &icon, wxClientData *data )
{
    wxDataViewTreeStoreContainerNode *parent_node = FindContainerNode( parent );
    if (!parent_node) return wxDataViewItem(0);

    wxDataViewTreeStoreNode *node =
        new wxDataViewTreeStoreNode( parent_node, text, icon, data );
    parent_node->GetChildren().Append( node );

    // notify control
    ItemAdded( parent, node->GetItem() );

    return node->GetItem();
}

wxDataViewItem wxDataViewTreeStore::PrependItem( const wxDataViewItem& parent,
        const wxString &text, const wxIcon &icon, wxClientData *data )
{
    wxDataViewTreeStoreContainerNode *parent_node = FindContainerNode( parent );
    if (!parent_node) return wxDataViewItem(0);

    wxDataViewTreeStoreNode *node =
        new wxDataViewTreeStoreNode( parent_node, text, icon, data );
    parent_node->GetChildren().Insert( node );

    // notify control
    ItemAdded( parent, node->GetItem() );

    return node->GetItem();
}

wxDataViewItem
wxDataViewTreeStore::InsertItem(const wxDataViewItem& WXUNUSED(parent),
                                const wxDataViewItem& WXUNUSED(previous),
                                const wxString& WXUNUSED(text),
                                const wxIcon& WXUNUSED(icon),
                                wxClientData * WXUNUSED(data))
{
    return wxDataViewItem(0);
}

wxDataViewItem wxDataViewTreeStore::PrependContainer( const wxDataViewItem& parent,
        const wxString &text, const wxIcon &icon, const wxIcon &expanded,
        wxClientData *data )
{
    wxDataViewTreeStoreContainerNode *parent_node = FindContainerNode( parent );
    if (!parent_node) return wxDataViewItem(0);

    wxDataViewTreeStoreContainerNode *node =
        new wxDataViewTreeStoreContainerNode( parent_node, text, icon, expanded, data );
    parent_node->GetChildren().Insert( node );

    // notify control
    ItemAdded( parent, node->GetItem() );

    return node->GetItem();
}

wxDataViewItem
wxDataViewTreeStore::AppendContainer(const wxDataViewItem& parent,
                                     const wxString &text,
                                     const wxIcon& icon,
                                     const wxIcon& expanded,
                                     wxClientData * data)
{
    wxDataViewTreeStoreContainerNode *parent_node = FindContainerNode( parent );
    if (!parent_node) return wxDataViewItem(0);

    wxDataViewTreeStoreContainerNode *node =
        new wxDataViewTreeStoreContainerNode( parent_node, text, icon, expanded, data );
    parent_node->GetChildren().Append( node );

    // notify control
    ItemAdded( parent, node->GetItem() );

    return node->GetItem();
}

wxDataViewItem
wxDataViewTreeStore::InsertContainer(const wxDataViewItem& WXUNUSED(parent),
                                     const wxDataViewItem& WXUNUSED(previous),
                                     const wxString& WXUNUSED(text),
                                     const wxIcon& WXUNUSED(icon),
                                     const wxIcon& WXUNUSED(expanded),
                                     wxClientData * WXUNUSED(data))
{
    return wxDataViewItem(0);
}

wxDataViewItem wxDataViewTreeStore::GetNthChild( const wxDataViewItem& parent, unsigned int pos ) const
{
    wxDataViewTreeStoreContainerNode *parent_node = FindContainerNode( parent );
    if (!parent_node) return wxDataViewItem(0);

    wxDataViewTreeStoreNodeList::compatibility_iterator node = parent_node->GetChildren().Item( pos );
    if (node)
        return node->GetData();

    return wxDataViewItem(0);
}

int wxDataViewTreeStore::GetChildCount( const wxDataViewItem& parent ) const
{
    wxDataViewTreeStoreNode *node = FindNode( parent );
    if (!node) return -1;

    if (!node->IsContainer())
        return 0;

    wxDataViewTreeStoreContainerNode *container_node = (wxDataViewTreeStoreContainerNode*) node;
    return (int) container_node->GetChildren().GetCount();
}

void wxDataViewTreeStore::SetItemText( const wxDataViewItem& item, const wxString &text )
{
    wxDataViewTreeStoreNode *node = FindNode( item );
    if (!node) return;

    node->SetText( text );

    // notify control
    ValueChanged( item, 0 );
}

wxString wxDataViewTreeStore::GetItemText( const wxDataViewItem& item ) const
{
    wxDataViewTreeStoreNode *node = FindNode( item );
    if (!node) return wxEmptyString;

    return node->GetText();
}

void wxDataViewTreeStore::SetItemIcon( const wxDataViewItem& item, const wxIcon &icon )
{
    wxDataViewTreeStoreNode *node = FindNode( item );
    if (!node) return;

    node->SetIcon( icon );

    // notify control
    ValueChanged( item, 0 );
}

const wxIcon &wxDataViewTreeStore::GetItemIcon( const wxDataViewItem& item ) const
{
    wxDataViewTreeStoreNode *node = FindNode( item );
    if (!node) return wxNullIcon;

    return node->GetIcon();
}

void wxDataViewTreeStore::SetItemExpandedIcon( const wxDataViewItem& item, const wxIcon &icon )
{
    wxDataViewTreeStoreContainerNode *node = FindContainerNode( item );
    if (!node) return;

    node->SetExpandedIcon( icon );

    // notify control
    ValueChanged( item, 0 );
}

const wxIcon &wxDataViewTreeStore::GetItemExpandedIcon( const wxDataViewItem& item ) const
{
    wxDataViewTreeStoreContainerNode *node = FindContainerNode( item );
    if (!node) return wxNullIcon;

    return node->GetExpandedIcon();
}

void wxDataViewTreeStore::SetItemData( const wxDataViewItem& item, wxClientData *data )
{
    wxDataViewTreeStoreNode *node = FindNode( item );
    if (!node) return;

    node->SetData( data );

    // notify control? only sensible when sorting on client data
    // ValueChanged( item, 0 );
}

wxClientData *wxDataViewTreeStore::GetItemData( const wxDataViewItem& item ) const
{
    wxDataViewTreeStoreNode *node = FindNode( item );
    if (!node) return NULL;

    return node->GetData();
}

void wxDataViewTreeStore::DeleteItem( const wxDataViewItem& item )
{
    if (!item.IsOk()) return;

    wxDataViewItem parent_item = GetParent( item );

    wxDataViewTreeStoreContainerNode *parent_node = FindContainerNode( parent_item );
    if (!parent_node) return;

    wxDataViewTreeStoreContainerNode *node = FindContainerNode( item );
    if (!node) return;

    parent_node->GetChildren().DeleteObject( node );

    // notify control
    ItemDeleted( parent_item, item );
}

void wxDataViewTreeStore::DeleteChildren( const wxDataViewItem& item )
{
    wxDataViewTreeStoreContainerNode *node = FindContainerNode( item );
    if (!node) return;

    wxDataViewItemArray array;
    wxDataViewTreeStoreNodeList::iterator iter;
    for (iter = node->GetChildren().begin(); iter != node->GetChildren().end(); iter++)
    {
        wxDataViewTreeStoreNode* child = *iter;
        array.Add( child->GetItem() );
    }

    node->GetChildren().clear();

    // notify control
    ItemsDeleted( item, array );
}

void wxDataViewTreeStore::DeleteAllItems()
{
    // TODO
}

void
wxDataViewTreeStore::GetValue(wxVariant &variant,
                              const wxDataViewItem &item,
                              unsigned int WXUNUSED(col)) const
{
    // if (col != 0) return;

    wxDataViewTreeStoreNode *node = FindNode( item );
    if (!node) return;

    wxIcon icon( node->GetIcon());
    if (node->IsContainer())
    {
        wxDataViewTreeStoreContainerNode *container = (wxDataViewTreeStoreContainerNode*) node;
        if (container->IsExpanded() && container->GetExpandedIcon().IsOk())
           icon = container->GetExpandedIcon();
    }

    wxDataViewIconText data( node->GetText(), icon );

    variant << data;
}

bool
wxDataViewTreeStore::SetValue(const wxVariant& variant,
                              const wxDataViewItem& item,
                              unsigned int WXUNUSED(col))
{
    // if (col != 0) return false;

    wxDataViewTreeStoreNode *node = FindNode( item );
    if (!node) return false;

    wxDataViewIconText data;

    data << variant;

    node->SetText( data.GetText() );
    node->SetIcon( data.GetIcon() );

    return true;
}

wxDataViewItem wxDataViewTreeStore::GetParent( const wxDataViewItem &item ) const
{
    wxDataViewTreeStoreNode *node = FindNode( item );
    if (!node) return wxDataViewItem(0);

    wxDataViewTreeStoreNode *parent = node->GetParent();
    if (!parent) return wxDataViewItem(0);

    if (parent == m_root)
        return wxDataViewItem(0);

    return parent->GetItem();
}

bool wxDataViewTreeStore::IsContainer( const wxDataViewItem &item ) const
{
    wxDataViewTreeStoreNode *node = FindNode( item );
    if (!node) return false;

    return node->IsContainer();
}

unsigned int wxDataViewTreeStore::GetChildren( const wxDataViewItem &item, wxDataViewItemArray &children ) const
{
    wxDataViewTreeStoreContainerNode *node = FindContainerNode( item );
    if (!node) return 0;

    wxDataViewTreeStoreNodeList::iterator iter;
    for (iter = node->GetChildren().begin(); iter != node->GetChildren().end(); iter++)
    {
        wxDataViewTreeStoreNode* child = *iter;
        children.Add( child->GetItem() );
    }

    return node->GetChildren().GetCount();
}

int wxDataViewTreeStore::Compare( const wxDataViewItem &item1, const wxDataViewItem &item2,
                         unsigned int WXUNUSED(column), bool WXUNUSED(ascending) )
{
    wxDataViewTreeStoreNode *node1 = FindNode( item1 );
    wxDataViewTreeStoreNode *node2 = FindNode( item2 );

    if (!node1 || !node2)
        return 0;

    wxDataViewTreeStoreContainerNode* parent1 =
        (wxDataViewTreeStoreContainerNode*) node1->GetParent();
    wxDataViewTreeStoreContainerNode* parent2 =
        (wxDataViewTreeStoreContainerNode*) node2->GetParent();

    if (parent1 != parent2)
    {
        wxLogError( wxT("Comparing items with different parent.") );
        return 0;
    }

    if (node1->IsContainer() && !!node2->IsContainer())
        return 1;

    if (node2->IsContainer() && !!node1->IsContainer())
        return -1;

    return parent1->GetChildren().IndexOf( node1 ) - parent1->GetChildren().IndexOf( node2 );
}

wxDataViewTreeStoreNode *wxDataViewTreeStore::FindNode( const wxDataViewItem &item ) const
{
    if (!item.IsOk())
        return m_root;

    return (wxDataViewTreeStoreNode*) item.GetID();
}

wxDataViewTreeStoreContainerNode *wxDataViewTreeStore::FindContainerNode( const wxDataViewItem &item ) const
{
    if (!item.IsOk())
        return (wxDataViewTreeStoreContainerNode*) m_root;

    wxDataViewTreeStoreNode* node = (wxDataViewTreeStoreNode*) item.GetID();

    if (!node->IsContainer())
        return NULL;

    return (wxDataViewTreeStoreContainerNode*) node;
}

//-----------------------------------------------------------------------------
// wxDataViewTreeCtrl
//-----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxDataViewTreeCtrl,wxDataViewCtrl)

BEGIN_EVENT_TABLE(wxDataViewTreeCtrl,wxDataViewCtrl)
   EVT_DATAVIEW_ITEM_EXPANDED(-1, wxDataViewTreeCtrl::OnExpanded)
   EVT_DATAVIEW_ITEM_COLLAPSED(-1, wxDataViewTreeCtrl::OnCollapsed)
   EVT_SIZE( wxDataViewTreeCtrl::OnSize )
END_EVENT_TABLE()

wxDataViewTreeCtrl::wxDataViewTreeCtrl()
{
    m_imageList = NULL;
}

wxDataViewTreeCtrl::wxDataViewTreeCtrl( wxWindow *parent, wxWindowID id,
           const wxPoint& pos, const wxSize& size, long style, const wxValidator& validator )
{
    m_imageList = NULL;
    Create( parent, id, pos, size, style, validator );

    wxDataViewTreeStore *store = new wxDataViewTreeStore;
    AssociateModel( store );
    store->DecRef();

    AppendIconTextColumn(wxString(),0,wxDATAVIEW_CELL_INERT,-1);
}

wxDataViewTreeCtrl::~wxDataViewTreeCtrl()
{
    if (m_imageList)
        delete m_imageList;
}

bool wxDataViewTreeCtrl::Create( wxWindow *parent, wxWindowID id,
           const wxPoint& pos, const wxSize& size, long style, const wxValidator& validator )
{
    return wxDataViewCtrl::Create( parent, id, pos, size, style, validator );
}

void wxDataViewTreeCtrl::SetImageList( wxImageList *imagelist )
{
    if (m_imageList)
        delete m_imageList;

    m_imageList = imagelist;
}

wxDataViewItem wxDataViewTreeCtrl::AppendItem( const wxDataViewItem& parent,
        const wxString &text, int iconIndex, wxClientData *data )
{
    wxIcon icon = wxNullIcon;
    if (m_imageList && (iconIndex != -1))
        icon = m_imageList->GetIcon( iconIndex );

    return GetStore()->AppendItem( parent, text, icon, data );
}

wxDataViewItem wxDataViewTreeCtrl::PrependItem( const wxDataViewItem& parent,
        const wxString &text, int iconIndex, wxClientData *data )
{
    wxIcon icon = wxNullIcon;
    if (m_imageList && (iconIndex != -1))
        icon = m_imageList->GetIcon( iconIndex );

    return GetStore()->PrependItem( parent, text, icon, data );
}

wxDataViewItem wxDataViewTreeCtrl::InsertItem( const wxDataViewItem& parent, const wxDataViewItem& previous,
        const wxString &text, int iconIndex, wxClientData *data )
{
    wxIcon icon = wxNullIcon;
    if (m_imageList && (iconIndex != -1))
        icon = m_imageList->GetIcon( iconIndex );

    return GetStore()->InsertItem( parent, previous, text, icon, data );
}

wxDataViewItem wxDataViewTreeCtrl::PrependContainer( const wxDataViewItem& parent,
        const wxString &text, int iconIndex, int expandedIndex, wxClientData *data )
{
    wxIcon icon = wxNullIcon;
    if (m_imageList && (iconIndex != -1))
        icon = m_imageList->GetIcon( iconIndex );

    wxIcon expanded = wxNullIcon;
    if (m_imageList && (expandedIndex != -1))
        expanded = m_imageList->GetIcon( expandedIndex );

    return GetStore()->PrependContainer( parent, text, icon, expanded, data );
}

wxDataViewItem wxDataViewTreeCtrl::AppendContainer( const wxDataViewItem& parent,
        const wxString &text, int iconIndex, int expandedIndex, wxClientData *data )
{
    wxIcon icon = wxNullIcon;
    if (m_imageList && (iconIndex != -1))
        icon = m_imageList->GetIcon( iconIndex );

    wxIcon expanded = wxNullIcon;
    if (m_imageList && (expandedIndex != -1))
        expanded = m_imageList->GetIcon( expandedIndex );

    return GetStore()->AppendContainer( parent, text, icon, expanded, data );
}

wxDataViewItem wxDataViewTreeCtrl::InsertContainer( const wxDataViewItem& parent, const wxDataViewItem& previous,
        const wxString &text, int iconIndex, int expandedIndex, wxClientData *data )
{
    wxIcon icon = wxNullIcon;
    if (m_imageList && (iconIndex != -1))
        icon = m_imageList->GetIcon( iconIndex );

    wxIcon expanded = wxNullIcon;
    if (m_imageList && (expandedIndex != -1))
        expanded = m_imageList->GetIcon( expandedIndex );

    return GetStore()->InsertContainer( parent, previous, text, icon, expanded, data );
}

void wxDataViewTreeCtrl::OnExpanded( wxDataViewEvent &event )
{
    if (m_imageList) return;

    wxDataViewTreeStoreContainerNode* container = GetStore()->FindContainerNode( event.GetItem() );
    if (!container) return;

    container->SetExpanded( true );
    GetStore()->ItemChanged( event.GetItem() );
}

void wxDataViewTreeCtrl::OnCollapsed( wxDataViewEvent &event )
{
    if (m_imageList) return;

    wxDataViewTreeStoreContainerNode* container = GetStore()->FindContainerNode( event.GetItem() );
    if (!container) return;

    container->SetExpanded( false );
    GetStore()->ItemChanged( event.GetItem() );
}

void wxDataViewTreeCtrl::OnSize( wxSizeEvent &event )
{
#if defined(wxUSE_GENERICDATAVIEWCTRL)
    wxSize size = GetClientSize();
    wxDataViewColumn *col = GetColumn( 0 );
    if (col)
       col->SetWidth( size.x );
#endif
    event.Skip( true );
}

#endif // wxUSE_DATAVIEWCTRL