trigger_ui: first draft of a multi-jump dialog

gtk2_ardour/trigger_jump_dialog.h

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2022 Ben Loftis <ben@harrisonconsoles.com>
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "trigger_ui.h"
+#include "ardour_dialog.h"
+
+#include "pbd/properties.h"
+
+#include <gtkmm/table.h>
+
+namespace ArdourWidgets {
+	class ArdourButton;
+}
+
+class TriggerJumpDialog : public ArdourDialog, public TriggerUI
+{
+public:
+	TriggerJumpDialog ();
+
+	void done (int);
+
+	void on_trigger_set ();
+	void button_clicked (int b);
+	void on_trigger_changed (PBD::PropertyChange const& what);
+
+private:
+	Gtk::Table _table;
+
+	typedef std::list <ArdourWidgets::ArdourButton*> ButtonList;
+	ButtonList _buttonlist;
+};