Copying float branch into default (apart from metadata tunneling, which oduis needs to re-enable n line 278 of simpleprocess.cc). I copied rtengine into default and patched things up, so this branch should have the rtgui of default and the rtengine of float.

rtgui/toolpanel.cc

@@ -0,0 +1,50 @@
+/*
+ *  This file is part of RawTherapee.
+ *
+ *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
+ *
+ *  RawTherapee is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  RawTherapee is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <toolpanel.h>
+#include <toolpanelcoord.h>
+
+using namespace rtengine::procparams;
+
+FoldableToolPanel::FoldableToolPanel(Gtk::Box* content) : ToolPanel(), parentContainer(NULL), exp(NULL) {
+
+	exp = Gtk::manage (new Gtk::Expander ());
+	exp->set_border_width (4);
+	exp->set_use_markup (true);
+	exp->signal_button_release_event().connect_notify( sigc::mem_fun(this, &FoldableToolPanel::foldThemAll) );
+
+	Gtk::Frame* pframe = Gtk::manage (new Gtk::Frame ());
+
+	pframe->set_name ("ToolPanel");
+
+	pframe->add (*content);
+
+	exp->add (*pframe);
+	pframe->set_shadow_type (Gtk::SHADOW_ETCHED_IN);
+	pframe->show ();
+	exp->show ();
+}
+
+void FoldableToolPanel::foldThemAll (GdkEventButton* event) {
+	if (event->button == 3)	{
+		if (listener)
+			((ToolPanelCoordinator*)listener)->foldAllButOne( parentContainer, this);
+		else
+			((ToolPanelCoordinator*)tmp)->foldAllButOne( parentContainer, this);
+	}
+}