Build confirmation window, for each build action on the map

src/widgets/build_confirmation_widget.h

@@ -0,0 +1,22 @@
+/* $Id$ */
+
+/*
+ * 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 build_confirmation_widget.h Types related to the build_confirmation widgets. */
+
+#ifndef WIDGETS_BUILD_CONFIRMATION_WIDGET_H
+#define WIDGETS_BUILD_CONFIRMATION_WIDGET_H
+
+/** Widgets of the #BuildVehicleWindow class. */
+enum BuildConfirmationWidgets {
+	WID_BC_PRICE,                     ///< Estimated price.
+	WID_BC_OK,                        ///< Confirm action.
+	WID_BC_CANCEL,                    ///< Cancel action.
+};
+
+#endif /* WIDGETS_BUILD_CONFIRMATION_WIDGET_H */