JAG's new region layer editor, tweaked by me to (a) hide editor if we click in a location with just 1 region under the mouse (b) automatically update to reflect playlist modification outside of the layering editor (c) add a clock and a track name to give a bit more context to the editor

git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@6067 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 172 insertions, 0 deletions

diff --git a/gtk2_ardour/region_layering_order_editor.cc b/gtk2_ardour/region_layering_order_editor.cc
new file mode 100644
index 0000000000..84ef12dd9d
--- /dev/null
+++ b/gtk2_ardour/region_layering_order_editor.cc
@@ -0,0 +1,172 @@
+#include <gtkmm/table.h>
+#include <gtkmm/stock.h>
+#include <ardour/region.h>
+
+#include "region_layering_order_editor.h"
+#include "i18n.h"
+#include "public_editor.h"
+#include "utils.h"
+
+using namespace Gtk;
+using namespace ARDOUR;
+
+RegionLayeringOrderEditor::RegionLayeringOrderEditor (PublicEditor& pe)
+: ArdourDialog (pe, _("RegionLayeringOrderEditor"), false, false)
+	, playlist ()
+	, position ()
+	, in_row_change (false)
+        , regions_at_position (0)
+	, layering_order_columns ()
+	, layering_order_model (Gtk::ListStore::create (layering_order_columns))
+	, layering_order_display ()
+        , clock ("layer dialog", true, "TransportClock", false, false, false)
+	, scroller ()
+	, the_editor(pe)
+{
+	set_name ("RegionLayeringOrderEditorWindow");
+
+	layering_order_display.set_model (layering_order_model);
+
+	layering_order_display.append_column (_("Region Name"), layering_order_columns.name);
+	layering_order_display.set_headers_visible (true);
+	layering_order_display.set_headers_clickable (true);
+	layering_order_display.set_reorderable (false);
+	layering_order_display.set_rules_hint (true);
+
+	scroller.set_border_width (10);
+	scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
+	scroller.add (layering_order_display);
+
+	Gtk::Table* table = manage (new Gtk::Table (7, 11));
+	table->set_size_request (300, 250);
+	table->attach (scroller, 0, 7, 0, 5);
+
+	clock.set_mode (AudioClock::BBT);
+
+	HBox* hbox = manage (new HBox);
+	hbox->pack_start (clock, true, false);
+
+	get_vbox()->set_spacing (6);
+	get_vbox()->pack_start (label, false, false);
+	get_vbox()->pack_start (*hbox, false, false);
+	get_vbox()->pack_start (*table);
+
+	table->set_name ("RegionLayeringOrderTable");
+	layering_order_display.set_name ("RegionLayeringOrderDisplay");
+
+	layering_order_display.get_selection ()->signal_changed ().connect (mem_fun (*this, &RegionLayeringOrderEditor::row_clicked));
+
+	layering_order_display.grab_focus ();
+
+	set_title (_("Choose Top Region"));
+	show_all();
+}
+
+RegionLayeringOrderEditor::~RegionLayeringOrderEditor ()
+{
+}
+
+void
+RegionLayeringOrderEditor::row_clicked ()
+{
+	if (in_row_change) {
+		return;
+	}
+
+	TreeModel::iterator iter = layering_order_display.get_selection()->get_selected();
+
+	if (iter) {
+		TreeModel::Row row = *iter;
+		boost::shared_ptr<Region> region = row[layering_order_columns.region];
+
+		region->raise_to_top ();
+	}
+}
+
+typedef boost::shared_ptr<Region> RegionPtr;
+
+struct RegionCompareByLayer {
+    bool operator() (RegionPtr a, RegionPtr b) const {
+	    return a->layer() > b->layer();
+    }
+};
+
+void
+RegionLayeringOrderEditor::refill ()
+{
+	regions_at_position = 0;
+
+	if (!playlist) {
+		return;
+	}
+
+	typedef Playlist::RegionList RegionList;
+
+	in_row_change = true;
+
+	layering_order_model->clear ();
+
+	boost::shared_ptr<RegionList> region_list(playlist->regions_at (position));
+
+	regions_at_position = region_list->size();
+
+	if (regions_at_position < 2) {
+		playlist_modified_connection.disconnect ();
+		hide ();
+		in_row_change = false;
+		return;
+	}
+
+	RegionCompareByLayer cmp;
+	region_list->sort (cmp);
+
+	for (RegionList::const_iterator i = region_list->begin(); i != region_list->end(); ++i) {
+		TreeModel::Row newrow = *(layering_order_model->append());
+		newrow[layering_order_columns.name] = (*i)->name();
+		newrow[layering_order_columns.region] = *i;
+	}
+
+	in_row_change = false;
+}
+
+void
+RegionLayeringOrderEditor::set_context (const string& a_name, Session* s, const boost::shared_ptr<Playlist>  & pl, nframes64_t pos)
+{
+	label.set_text (a_name);
+
+	clock.set_session (s);
+	clock.set (pos, true, 0, 0);
+
+	playlist_modified_connection.disconnect ();
+	playlist = pl;
+	playlist_modified_connection = playlist->Modified.connect (mem_fun (*this, &RegionLayeringOrderEditor::playlist_modified));
+
+	position = pos;
+	refill ();
+}
+
+bool
+RegionLayeringOrderEditor::on_key_press_event (GdkEventKey* ev)
+{
+	bool result = key_press_focus_accelerator_handler (the_editor, ev);
+	if (!result) {
+		result = ArdourDialog::on_key_press_event (ev);
+	}
+	return result;
+}
+
+void
+RegionLayeringOrderEditor::maybe_present ()
+{
+	if (regions_at_position < 2) {
+		hide ();
+		return;
+	}
+	present ();
+}
+
+void
+RegionLayeringOrderEditor::playlist_modified ()
+{
+	refill ();
+}