1 files changed, 48 insertions, 0 deletions
diff --git a/src/cargodest_gui.h b/src/cargodest_gui.h
new file mode 100644
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+++ b/src/cargodest_gui.h
@@ -0,0 +1,48 @@
+/* $Id$ */
+
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD 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, version 2.
+ * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file cargodest_gui.h Functions/types related to the cargodest GUI. */
+
+#ifndef CARGODEST_GUI_H
+#define CARGODEST_GUI_H
+
+#include "cargodest_base.h"
+#include "sortlist_type.h"
+
+/** Helper encapsulating a #CargoLink. */
+struct GUICargoLink {
+	CargoID         cid;   ///< Cargo ID of this link.
+	const CargoLink *link; ///< Pointer to the link.
+
+	GUICargoLink(CargoID c, const CargoLink *l) : cid(c), link(l) {}
+};
+
+/** Sorted list of demand destinations for displaying. */
+class CargoDestinationList
+{
+private:
+	const CargoSourceSink *obj;      ///< The object which destinations are displayed.
+	GUIList<GUICargoLink> link_list; ///< Sorted list of destinations.
+
+	void RebuildList();
+	void SortList();
+
+public:
+	CargoDestinationList(const CargoSourceSink *o);
+
+	void InvalidateData();
+	void Resort();
+
+	uint GetListHeight() const;
+	uint DrawList(uint left, uint right, uint y) const;
+
+	void OnClick(uint y) const;
+};
+
+#endif /* CARGODEST_GUI_H */