Fix 1368694. You can now add layers to groups and the groups show up immediately...

[synfig.git] / synfig-core / trunk / src / synfig / canvas.cpp

diff --git a/synfig-core/trunk/src/synfig/canvas.cpp b/synfig-core/trunk/src/synfig/canvas.cpp
index e98b301..035208d 100644 (file)
--- a/synfig-core/trunk/src/synfig/canvas.cpp
+++ b/synfig-core/trunk/src/synfig/canvas.cpp
@@ -700,24 +700,22 @@ Canvas::insert(iterator iter,etl::handle<Layer> x)
        //while(correct_canvas->is_inline())correct_canvas=correct_canvas->parent();
        Layer::LooseHandle loose_layer(x);
 
-       x->signal_added_to_group().connect(
-               sigc::bind(
-                       sigc::mem_fun(
-                               *correct_canvas,
-                               &Canvas::add_group_pair
-                       ),
-                       loose_layer
-               )
-       );
-       x->signal_removed_from_group().connect(
-               sigc::bind(
-                       sigc::mem_fun(
-                               *correct_canvas,
-                               &Canvas::remove_group_pair
-                       ),
-                       loose_layer
-               )
-       );
+       add_connection(x,
+                                  sigc::connection::connection(
+                                          x->signal_added_to_group().connect(
+                                                  sigc::bind(
+                                                          sigc::mem_fun(
+                                                                  *correct_canvas,
+                                                                  &Canvas::add_group_pair),
+                                                          loose_layer))));
+       add_connection(x,
+                                  sigc::connection::connection(
+                                          x->signal_removed_from_group().connect(
+                                                  sigc::bind(
+                                                          sigc::mem_fun(
+                                                                  *correct_canvas,
+                                                                  &Canvas::remove_group_pair),
+                                                          loose_layer))));
 
 
        if(!x->get_group().empty())
@@ -749,8 +747,10 @@ Canvas::erase(Canvas::iterator iter)
        // is using these signals, so I'll just
        // leave these next two lines like they
        // are for now - darco 07-30-2004
-       (*iter)->signal_added_to_group().clear();
-       (*iter)->signal_removed_from_group().clear();
+
+       // so don't wipe them out entirely
+       // - dooglus 09-21-2007
+       disconnect_connections(*iter);
 
        if(!op_flag_)remove_child(iter->get());
 
@@ -1179,6 +1179,21 @@ Canvas::remove_group_pair(String group, etl::handle<Layer> layer)
 }
 
 void
+Canvas::add_connection(etl::handle<Layer> layer, sigc::connection connection)
+{
+       connections_[layer].push_back(connection);
+}
+
+void
+Canvas::disconnect_connections(etl::handle<Layer> layer)
+{
+       std::vector<sigc::connection>::iterator iter;
+       for(iter=connections_[layer].begin();iter!=connections_[layer].end();++iter)
+               iter->disconnect();
+       connections_[layer].clear();
+}
+
+void
 Canvas::rename_group(const String&old_name,const String&new_name)
 {
        if(is_inline() && parent_)