Clone in a terminal:
UserActions.vala
/*
    Copyright (C) 2012 Johan Mattsson

    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 3 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, see <http://www.gnu.org/licenses/>.
*/

namespace Supplement {

/** User interface action for unit testing and undo command.
 */
interface UserActions {
	public abstract void do_action ();
	public abstract void undo ();
	public abstract void reundo ();
	public abstract void test ();
}

interface UserClickActions {
	public abstract void do_click (int button, int x, int y);
}

class NewPointAction : UserActions, UserClickActions {

	public void do_action () {
	}

	public void undo () {
	}
	
	public void reundo () {
	}
	
	public void do_click (int button, int x, int y) {
	}
	
	public void test () {
	}
	
}

}

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