Added check to allow multiple selection by dragging only if property under mouse...

[wxWidgets.git] / src / gtk / dataview.cpp

diff --git a/src/gtk/dataview.cpp b/src/gtk/dataview.cpp
index 0110325a42bd5087cee30c42931515ef791d69a2..15855368b10e981f25e610aa7d518d86d63d8f9a 100644 (file)
--- a/src/gtk/dataview.cpp
+++ b/src/gtk/dataview.cpp
@@ -540,7 +540,7 @@ wxgtk_tree_model_get_column_type (GtkTreeModel *tree_model,
     else
     {
         gtype = G_TYPE_STRING;
-        // wxFAIL_MSG( _T("non-string columns not supported yet") );
+        // wxFAIL_MSG( wxT("non-string columns not supported yet") );
     }
 
     return gtype;
@@ -591,7 +591,7 @@ wxgtk_tree_model_get_value (GtkTreeModel *tree_model,
     }
     else
     {
-        wxFAIL_MSG( _T("non-string columns not supported yet") );
+        wxFAIL_MSG( wxT("non-string columns not supported yet") );
     }
 }
 
@@ -601,9 +601,8 @@ wxgtk_tree_model_iter_next (GtkTreeModel  *tree_model,
 {
     GtkWxTreeModel *wxtree_model = (GtkWxTreeModel *) tree_model;
 
-    //if (wxtree_model->stamp != iter->stamp)
-    //   wxPrintf( "crash\n" );
-    // TODO: remove this code
+    // This happens when clearing the view by calling .._set_model( NULL );
+    if (iter->stamp == 0) return FALSE;
 
     g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model), FALSE);
     g_return_val_if_fail (wxtree_model->stamp == iter->stamp, FALSE);
@@ -639,7 +638,7 @@ wxgtk_tree_model_iter_n_children (GtkTreeModel *tree_model,
                                   GtkTreeIter  *iter)
 {
     GtkWxTreeModel *wxtree_model = (GtkWxTreeModel *) tree_model;
-    g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model), FALSE);
+    g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model), 0);
     g_return_val_if_fail ( !iter || wxtree_model->stamp == iter->stamp, 0);
 
     return wxtree_model->internal->iter_n_children( iter );
@@ -854,7 +853,7 @@ typedef struct _GtkWxCellRendererTextClass GtkWxCellRendererTextClass;
 struct _GtkWxCellRendererText
 {
   GtkCellRendererText parent;
-  
+
   wxDataViewRenderer *wx_renderer;
 };
 
@@ -970,7 +969,7 @@ static GtkCellEditable *gtk_wx_cell_renderer_text_start_editing(
     event.SetColumn( wx_renderer->GetOwner()->GetModelColumn() );
     event.SetItem( item );
     dv->HandleWindowEvent( event );
-    
+
     if (event.IsAllowed())
         return GTK_CELL_RENDERER_CLASS(text_cell_parent_class)->
            start_editing( gtk_renderer, gdk_event, widget, path, background_area, cell_area, flags );
@@ -1489,16 +1488,9 @@ bool wxGtkDataViewModelNotifier::ValueChanged( const wxDataViewItem &item, unsig
 
 bool wxGtkDataViewModelNotifier::Cleared()
 {
-    gtk_tree_view_set_model( GTK_TREE_VIEW(m_owner->m_treeview), NULL );
-
-    // this will create a new GTK model
     m_owner->GtkGetInternal()->Cleared();
 
-    SetGtkModel( m_owner->GtkGetInternal()->GetGtkModel() );
-
-    gtk_tree_view_set_model( GTK_TREE_VIEW(m_owner->m_treeview), GTK_TREE_MODEL(m_wxgtk_model) );
-
-    return false;
+    return true;
 }
 
 // ---------------------------------------------------------
@@ -1570,8 +1562,8 @@ void wxDataViewRenderer::GtkInitHandlers()
     if (!gtk_check_version(2,6,0))
     {
         g_signal_connect (GTK_CELL_RENDERER(m_renderer), "editing_started",
-                   G_CALLBACK (wxgtk_renderer_editing_started),
-                   this);
+            G_CALLBACK (wxgtk_renderer_editing_started),
+            this);
     }
 }
 
@@ -2580,9 +2572,11 @@ static void wxGtkTreeCellDataFunc( GtkTreeViewColumn *WXUNUSED(column),
     wx_model->GetValue( value, item, cell->GetOwner()->GetModelColumn() );
 
     if (value.GetType() != cell->GetVariantType())
+    {
         wxLogError( wxT("Wrong type, required: %s but: %s"),
                     value.GetType().c_str(),
                     cell->GetVariantType().c_str() );
+    }
 
     cell->SetValue( value );
 
@@ -3031,10 +3025,10 @@ void wxGtkTreeModelNode::Resort()
     // Sort the ptrs
     gs_internal = m_internal;
     ptrs.Sort( &wxGtkTreeModelChildPtrCmp );
- 
+
     wxGtkTreeModelChildren temp;
     void** base_ptr = &(m_children[0]);
-    // Transfer positions to new_order array and 
+    // Transfer positions to new_order array and
     // IDs to temp
     for (i = 0; i < child_count; i++)
     {
@@ -3074,13 +3068,13 @@ void wxGtkTreeModelNode::Resort()
 
 #if 0
     // Too slow
-    
+
     wxGtkTreeModelChildren temp;
     WX_APPEND_ARRAY( temp, m_children );
 
     gs_internal = m_internal;
     m_children.Sort( &wxGtkTreeModelChildCmp );
-    
+
     unsigned int pos;
     for (pos = 0; pos < child_count; pos++)
     {
@@ -3103,7 +3097,7 @@ void wxGtkTreeModelNode::Resort()
     gtk_tree_path_free (path);
 
     delete [] new_order;
-    
+
     unsigned int pos;
     for (pos = 0; pos < node_count; pos++)
     {
@@ -3320,17 +3314,16 @@ wxDataViewCtrlInternal::row_drop_possible(GtkTreeDragDest *WXUNUSED(drag_dest),
 
 bool wxDataViewCtrlInternal::Cleared()
 {
+    GtkWidget* tree_widget = GetOwner()->GtkGetTreeView();
+    gtk_tree_view_set_model( GTK_TREE_VIEW(tree_widget), NULL );
+    gtk_tree_view_set_model( GTK_TREE_VIEW(tree_widget), GTK_TREE_MODEL(m_gtk_model) );
+
     if (m_root)
     {
         delete m_root;
         InitTree();
     }
 
-    // Create new GTK model
-    g_object_unref( m_gtk_model );
-    m_gtk_model = wxgtk_tree_model_new();
-    m_gtk_model->internal = this;
-
     return true;
 }
 
@@ -3411,9 +3404,9 @@ gboolean wxDataViewCtrlInternal::get_iter( GtkTreeIter *iter, GtkTreePath *path
     if (m_wx_model->IsVirtualListModel())
     {
         wxDataViewVirtualListModel *wx_model = (wxDataViewVirtualListModel*) m_wx_model;
-    
+
         unsigned int i = (unsigned int)gtk_tree_path_get_indices (path)[0];
-        
+
         if (i >= wx_model->GetCount())
             return FALSE;
 
@@ -3503,10 +3496,16 @@ gboolean wxDataViewCtrlInternal::iter_next( GtkTreeIter *iter )
         int n = ( (wxUIntPtr) iter->user_data ) -1;
 
         if (n == -1)
+        {
+            iter->user_data = NULL;
             return FALSE;
+        }
 
-        if (n >= (int) wx_model->GetCount())
+        if (n >= (int) wx_model->GetCount()-1)
+        {
+            iter->user_data = NULL;
             return FALSE;
+        }
 
         // user_data is just the index +1 (+2 because we need the next)
         iter->user_data = (gpointer) (n+2);
@@ -3515,14 +3514,19 @@ gboolean wxDataViewCtrlInternal::iter_next( GtkTreeIter *iter )
     {
         wxGtkTreeModelNode *parent = FindParentNode( iter );
         if( parent == NULL )
+        {
+            iter->user_data = NULL;
             return FALSE;
+        }
 
         int pos = parent->GetChildren().Index( iter->user_data );
 
         if (pos == (int) parent->GetChildCount()-1)
+        {
+            iter->user_data = NULL;
             return FALSE;
+        }
 
-        iter->stamp = m_gtk_model->stamp;
         iter->user_data = parent->GetChildren().Item( pos+1 );
     }
 
@@ -3544,6 +3548,14 @@ gboolean wxDataViewCtrlInternal::iter_children( GtkTreeIter *iter, GtkTreeIter *
     }
     else
     {
+        if (iter == NULL)
+        {
+            if (m_root->GetChildCount() == 0) return FALSE;
+            iter->stamp = m_gtk_model->stamp;
+            iter->user_data = (gpointer) m_root->GetChildren().Item( 0 );
+            return TRUE;
+        }
+
         wxDataViewItem item( (void*) parent->user_data );
 
         if (!m_wx_model->IsContainer( item ))
@@ -3572,13 +3584,16 @@ gboolean wxDataViewCtrlInternal::iter_has_child( GtkTreeIter *iter )
         wxDataViewVirtualListModel *wx_model = (wxDataViewVirtualListModel*) m_wx_model;
 
         if (iter == NULL)
-            return (gint) wx_model->GetCount();
-        
+            return (wx_model->GetCount() > 0);
+
         // this is a list, nodes have no children
         return FALSE;
     }
     else
     {
+        if (iter == NULL)
+            return (m_root->GetChildCount() > 0);
+
         wxDataViewItem item( (void*) iter->user_data );
 
         bool is_container = m_wx_model->IsContainer( item );
@@ -3623,8 +3638,6 @@ gint wxDataViewCtrlInternal::iter_n_children( GtkTreeIter *iter )
 
         BuildBranch( parent_node );
 
-        // wxPrintf( "iter_n_children %d\n", parent_node->GetChildCount() );
-
         return parent_node->GetChildCount();
     }
 }
@@ -3665,8 +3678,6 @@ gboolean wxDataViewCtrlInternal::iter_nth_child( GtkTreeIter *iter, GtkTreeIter
 
         BuildBranch( parent_node );
 
-        // wxPrintf( "iter_nth_child %d\n", n );
-
         iter->stamp = m_gtk_model->stamp;
         iter->user_data = parent_node->GetChildren().Item( n );
 
@@ -4015,8 +4026,6 @@ gtk_dataview_motion_notify_callback( GtkWidget *WXUNUSED(widget),
             GtkTreeIter iter;
             dv->GtkGetInternal()->get_iter( &iter, path );
 
-            // wxPrintf( "mouse %d %d\n", (int) gdk_event->x, (int) gdk_event->y );
-
             gtk_tree_path_free( path );
         }
     }