From 41bc62b35b8194fd607aa2541e2057abd680078a Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Wed, 20 Sep 2006 16:24:24 +0000
Subject: fixes for drag-n-drop broken by use of boost::shared_ptr<T>

git-svn-id: svn://localhost/ardour2/trunk@923 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 libs/gtkmm2ext/dndtreeview.cc | 85 +++----------------------------------------
 1 file changed, 5 insertions(+), 80 deletions(-)

(limited to 'libs/gtkmm2ext/dndtreeview.cc')

diff --git a/libs/gtkmm2ext/dndtreeview.cc b/libs/gtkmm2ext/dndtreeview.cc
index 83955861cf..7baedd4121 100644
--- a/libs/gtkmm2ext/dndtreeview.cc
+++ b/libs/gtkmm2ext/dndtreeview.cc
@@ -10,7 +10,7 @@ using namespace Gtk;
 using namespace Glib;
 using namespace Gtkmm2ext;
 
-DnDTreeView::DnDTreeView ()
+DnDTreeViewBase::DnDTreeViewBase ()
 	: TreeView ()
 {
 	draggable.push_back (TargetEntry ("GTK_TREE_MODEL_ROW", TARGET_SAME_WIDGET));
@@ -23,7 +23,7 @@ DnDTreeView::DnDTreeView ()
 }
 
 void
-DnDTreeView::add_drop_targets (list<TargetEntry>& targets)
+DnDTreeViewBase::add_drop_targets (list<TargetEntry>& targets)
 {
 	for (list<TargetEntry>::iterator i = targets.begin(); i != targets.end(); ++i) {
 		draggable.push_back (*i);
@@ -33,7 +33,7 @@ DnDTreeView::add_drop_targets (list<TargetEntry>& targets)
 }	
 
 void
-DnDTreeView::add_object_drag (int column, string type_name)
+DnDTreeViewBase::add_object_drag (int column, string type_name)
 {
 	draggable.push_back (TargetEntry (type_name, TargetFlags(0)));
 	data_column = column;
@@ -42,86 +42,11 @@ DnDTreeView::add_object_drag (int column, string type_name)
 	enable_model_drag_dest (draggable);
 }
 
-DnDTreeView::SerializedObjectPointers* 
-DnDTreeView::serialize_pointers (RefPtr<TreeModel> model, TreeSelection::ListHandle_Path* selection, ustring type)
-{
-	uint32_t cnt = selection->size();
-	uint32_t sz = (sizeof (void*) * cnt) + sizeof (SerializedObjectPointers);
-
-	cerr << "lets plan to serialize " << cnt << " from selection\n";
-
-	char* buf = new char[sz];
-	SerializedObjectPointers* sr = new (buf) SerializedObjectPointers;
-	
-	sr->cnt = cnt;
-	sr->size = sz;
-
-	snprintf (sr->type, sizeof (sr->type), "%s", type.c_str());
-
-	cnt = 0;
-
-	for (TreeSelection::ListHandle_Path::iterator x = selection->begin(); x != selection->end(); ++x, ++cnt) {
-		cerr << "getting next item\n";
-		TreeModel::Row row = *(model->get_iter (*x));
-		row.get_value (data_column, sr->ptr[cnt]);
-	}
-
-	cerr << "returning an SR with size = " << sr->size << endl;
-	return sr;
-}
-
-void
-DnDTreeView::on_drag_data_get(const RefPtr<DragContext>& context, SelectionData& selection_data, guint info, guint time)
-{
-	if (selection_data.get_target() == "GTK_TREE_MODEL_ROW") {
-
-		TreeView::on_drag_data_get (context, selection_data, info, time);
-		
-	} else if (data_column >= 0) {
-		
-		Gtk::TreeSelection::ListHandle_Path selection = get_selection()->get_selected_rows ();
-		SerializedObjectPointers* sr = serialize_pointers (get_model(), &selection, selection_data.get_target());
-		selection_data.set (8, (guchar*)sr, sr->size);
-		
-		cerr << "selection data set to contain " << sr->size << endl;
-	}
-}
-
-void 
-DnDTreeView::on_drag_data_received(const RefPtr<DragContext>& context, int x, int y, const SelectionData& selection_data, guint info, guint time)
-{
- 	if (suggested_action) {
- 		/* this is a drag motion callback. just update the status to
- 		   say that we are still dragging, and that's it.
- 		*/
- 		suggested_action = Gdk::DragAction (0);
- 		TreeView::on_drag_data_received (context, x, y, selection_data, info, time);
- 		return;
- 	}
-
-	if (selection_data.get_target() == "GTK_TREE_MODEL_ROW") {
-		
-		TreeView::on_drag_data_received (context, x, y, selection_data, info, time);
-		
-	} else if (data_column >= 0) {
-
-		/* object D-n-D */
-		
-		const SerializedObjectPointers* sr = reinterpret_cast<const SerializedObjectPointers *>(selection_data.get_data());
-		
-		if (sr) {
-			signal_object_drop (sr->type, sr->cnt, const_cast<void**>(sr->ptr));
-		}
-
-	} else {
-		/* some kind of target type added by the app, which will be handled by a signal handler */
-	}
-}
-
 bool 
-DnDTreeView::on_drag_drop(const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, guint time)
+DnDTreeViewBase::on_drag_drop(const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, guint time)
 {
 	suggested_action = Gdk::DragAction (0);
 	return TreeView::on_drag_drop (context, x, y, time);
 }
 
+
-- 
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