Added wxDataViewListIndexModel::RowsDeleted() and various related corrections

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50764 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/datavcmn.cpp

@@ -385,6 +385,8 @@ void wxDataViewIndexListModel::RowDeleted( unsigned int row )
 {
     if (m_useHash)
     {
+        m_ordered = false;
+        
         wxDataViewItem item( m_hash[row] );
         wxDataViewModel::ItemDeleted( wxDataViewItem(0), item );
         m_hash.RemoveAt( row );
@@ -397,6 +399,47 @@ void wxDataViewIndexListModel::RowDeleted( unsigned int row )
     }
 }
 
+static int my_sort( int *v1, int *v2 )
+{
+   return *v2-*v1;
+}
+
+void wxDataViewIndexListModel::RowsDeleted( const wxArrayInt &rows )
+{
+    wxArrayInt sorted = rows;
+    sorted.Sort( my_sort );
+    
+    if (m_useHash)
+    {
+        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] );
+    }
+    else
+    {
+        wxDataViewItemArray array;
+        unsigned int i;
+        for (i = 0; i < sorted.GetCount(); i++)
+        {
+            wxDataViewItem item( (void*) sorted[i] );
+            array.Add( item );
+        }
+        wxDataViewModel::ItemsDeleted( wxDataViewItem(0), array );
+    
+        m_lastIndex -= rows.GetCount();
+    }
+}
+
 void wxDataViewIndexListModel::RowChanged( unsigned int row )
 {
     wxDataViewModel::ItemChanged( GetItem(row) );

src/generic/datavgen.cpp

@@ -2048,6 +2048,13 @@ bool Walker( wxDataViewTreeNode * node, DoJob & func )
 
 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
 {
+    if (!m_root)
+    {
+        m_count++;
+        UpdateDisplay();
+        return true;
+    }
+    
     SortPrepare();
 
     wxDataViewTreeNode * node;
@@ -2081,6 +2088,19 @@ void DestroyTreeHelper( wxDataViewTreeNode * node);
 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
                                        const wxDataViewItem& item)
 {
+    if (!m_root)
+    {
+        m_count--;
+        if( m_currentRow > GetRowCount() )
+            m_currentRow = m_count - 1;
+
+        m_selection.Empty();
+        
+        UpdateDisplay();
+
+        return true;
+    }
+
     wxDataViewTreeNode * node = FindNode(parent);
 
     wxCHECK_MSG( node != NULL, false, "item not found" );