Avoid an assert when m_dir is empty

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

diff --git a/src/common/datavcmn.cpp b/src/common/datavcmn.cpp
index 611d3b1d5a637c4f147501f5559c4cef997a029a..b7ee97b28e21a64cc21db08f56081e2f6342c863 100644 (file)
--- a/src/common/datavcmn.cpp
+++ b/src/common/datavcmn.cpp
@@ -387,7 +387,7 @@ wxDataViewIndexListModel::wxDataViewIndexListModel( unsigned int initial_size )
     // build initial index
     unsigned int i;
     for (i = 1; i < initial_size+1; i++)
-            m_hash.Add( wxUIntToPtr(i) );
+            m_hash.Add( wxDataViewItem(wxUIntToPtr(i)) );
     m_nextFreeID = initial_size + 1;
 }
 
@@ -403,7 +403,7 @@ void wxDataViewIndexListModel::Reset( unsigned int new_size )
     // build initial index
     unsigned int i;
     for (i = 1; i < new_size+1; i++)
-            m_hash.Add( wxUIntToPtr(i) );
+            m_hash.Add( wxDataViewItem(wxUIntToPtr(i)) );
 
     m_nextFreeID = new_size + 1;
 
@@ -417,8 +417,8 @@ void wxDataViewIndexListModel::RowPrepended()
     unsigned int id = m_nextFreeID;
     m_nextFreeID++;
 
-    m_hash.Insert( wxUIntToPtr(id), 0 );
     wxDataViewItem item( wxUIntToPtr(id) );
+    m_hash.Insert( item, 0 );
     ItemAdded( wxDataViewItem(0), item );
 
 }
@@ -430,8 +430,8 @@ void wxDataViewIndexListModel::RowInserted( unsigned int before )
     unsigned int id = m_nextFreeID;
     m_nextFreeID++;
 
-    m_hash.Insert( wxUIntToPtr(id), before );
     wxDataViewItem item( wxUIntToPtr(id) );
+    m_hash.Insert( item, before );
     ItemAdded( wxDataViewItem(0), item );
 }
 
@@ -440,8 +440,8 @@ void wxDataViewIndexListModel::RowAppended()
     unsigned int id = m_nextFreeID;
     m_nextFreeID++;
 
-    m_hash.Add( wxUIntToPtr(id) );
     wxDataViewItem item( wxUIntToPtr(id) );
+    m_hash.Add( item );
     ItemAdded( wxDataViewItem(0), item );
 }
 
@@ -490,7 +490,7 @@ unsigned int wxDataViewIndexListModel::GetRow( const wxDataViewItem &item ) cons
         return wxPtrToUInt(item.GetID())-1;
 
     // assert for not found
-    return (unsigned int) m_hash.Index( item.GetID() );
+    return (unsigned int) m_hash.Index( item );
 }
 
 wxDataViewItem wxDataViewIndexListModel::GetItem( unsigned int row ) const
@@ -673,7 +673,7 @@ wxDataViewRendererBase::~wxDataViewRendererBase()
 {
 }
 
-const wxDataViewCtrl* wxDataViewRendererBase::GetView() const
+wxDataViewCtrl* wxDataViewRendererBase::GetView() const
 {
     return const_cast<wxDataViewRendererBase*>(this)->GetOwner()->GetOwner();
 }
@@ -1094,6 +1094,16 @@ void wxDataViewCtrlBase::SetCurrentItem(const wxDataViewItem& item)
         Select(item);
 }
 
+wxDataViewItem wxDataViewCtrlBase::GetSelection() const
+{
+    if ( GetSelectedItemsCount() != 1 )
+        return wxDataViewItem();
+
+    wxDataViewItemArray selections;
+    GetSelections(selections);
+    return selections[0];
+}
+
 wxDataViewColumn *
 wxDataViewCtrlBase::AppendTextColumn( const wxString &label, unsigned int model_column,
                             wxDataViewCellMode mode, int width, wxAlignment align, int flags )
@@ -2005,7 +2015,7 @@ wxDataViewItem wxDataViewTreeStore::GetNthChild( const wxDataViewItem& parent, u
 
     wxDataViewTreeStoreNodeList::compatibility_iterator node = parent_node->GetChildren().Item( pos );
     if (node)
-        return node->GetData();
+        return wxDataViewItem(node->GetData());
 
     return wxDataViewItem(0);
 }
@@ -2111,7 +2121,7 @@ void wxDataViewTreeStore::DeleteChildren( const wxDataViewItem& item )
 
 void wxDataViewTreeStore::DeleteAllItems()
 {
-    DeleteChildren(m_root);
+    DeleteChildren(wxDataViewItem(m_root));
 }
 
 void
@@ -2248,11 +2258,6 @@ BEGIN_EVENT_TABLE(wxDataViewTreeCtrl,wxDataViewCtrl)
    EVT_SIZE( wxDataViewTreeCtrl::OnSize )
 END_EVENT_TABLE()
 
-wxDataViewTreeCtrl::~wxDataViewTreeCtrl()
-{
-    delete m_imageList;
-}
-
 bool wxDataViewTreeCtrl::Create( wxWindow *parent, wxWindowID id,
            const wxPoint& pos, const wxSize& size, long style, const wxValidator& validator )
 {
@@ -2277,21 +2282,11 @@ bool wxDataViewTreeCtrl::Create( wxWindow *parent, wxWindowID id,
     return true;
 }
 
-void wxDataViewTreeCtrl::SetImageList( wxImageList *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 );
-
-    wxDataViewItem res = GetStore()->AppendItem( parent, text, icon, data );
+    wxDataViewItem res = GetStore()->
+        AppendItem( parent, text, GetImage(iconIndex), data );
 
     GetStore()->ItemAdded( parent, res );
 
@@ -2301,11 +2296,8 @@ wxDataViewItem wxDataViewTreeCtrl::AppendItem( const wxDataViewItem& parent,
 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 );
-
-    wxDataViewItem res = GetStore()->PrependItem( parent, text, icon, data );
+    wxDataViewItem res = GetStore()->
+        PrependItem( parent, text, GetImage(iconIndex), data );
 
     GetStore()->ItemAdded( parent, res );
 
@@ -2315,11 +2307,8 @@ wxDataViewItem wxDataViewTreeCtrl::PrependItem( const wxDataViewItem& parent,
 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 );
-
-    wxDataViewItem res = GetStore()->InsertItem( parent, previous, text, icon, data );
+    wxDataViewItem res = GetStore()->
+        InsertItem( parent, previous, text, GetImage(iconIndex), data );
 
     GetStore()->ItemAdded( parent, res );
 
@@ -2329,15 +2318,9 @@ wxDataViewItem wxDataViewTreeCtrl::InsertItem( const wxDataViewItem& parent, con
 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 );
-
-    wxDataViewItem res = GetStore()->PrependContainer( parent, text, icon, expanded, data );
+    wxDataViewItem res = GetStore()->
+        PrependContainer( parent, text,
+                          GetImage(iconIndex), GetImage(expandedIndex), data );
 
     GetStore()->ItemAdded( parent, res );
 
@@ -2347,15 +2330,9 @@ wxDataViewItem wxDataViewTreeCtrl::PrependContainer( const wxDataViewItem& paren
 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 );
-
-    wxDataViewItem res = GetStore()->AppendContainer( parent, text, icon, expanded, data );
+    wxDataViewItem res = GetStore()->
+        AppendContainer( parent, text,
+                         GetImage(iconIndex), GetImage(expandedIndex), data );
 
     GetStore()->ItemAdded( parent, res );
 
@@ -2365,15 +2342,9 @@ wxDataViewItem wxDataViewTreeCtrl::AppendContainer( const wxDataViewItem& parent
 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 );
-
-    wxDataViewItem res = GetStore()->InsertContainer( parent, previous, text, icon, expanded, data );
+    wxDataViewItem res = GetStore()->
+        InsertContainer( parent, previous, text,
+                         GetImage(iconIndex), GetImage(expandedIndex), data );
 
     GetStore()->ItemAdded( parent, res );
 
@@ -2442,7 +2413,7 @@ void  wxDataViewTreeCtrl::DeleteAllItems()
 
 void wxDataViewTreeCtrl::OnExpanded( wxDataViewEvent &event )
 {
-    if (m_imageList) return;
+    if (HasImageList()) return;
 
     wxDataViewTreeStoreContainerNode* container = GetStore()->FindContainerNode( event.GetItem() );
     if (!container) return;
@@ -2454,7 +2425,7 @@ void wxDataViewTreeCtrl::OnExpanded( wxDataViewEvent &event )
 
 void wxDataViewTreeCtrl::OnCollapsed( wxDataViewEvent &event )
 {
-    if (m_imageList) return;
+    if (HasImageList()) return;
 
     wxDataViewTreeStoreContainerNode* container = GetStore()->FindContainerNode( event.GetItem() );
     if (!container) return;