001 /** 002 * planningtool - A Planning Tool with Critiquing Support. 003 * 004 * Copyright (C) 2006 olale 005 006 * This program is free software; you can redistribute it and/or 007 * modify it under the terms of the GNU General Public License 008 * as published by the Free Software Foundation; either version 2 009 * of the License, or (at your option) any later version. 010 011 * This program is distributed in the hope that it will be useful, 012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 014 * GNU General Public License for more details. 015 016 * You should have received a copy of the GNU General Public License 017 * along with this program; if not, write to the Free Software 018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 019 020 * Contact information: 021 * E-mail: olale@ida.liu.se 022 * olale@lysator.liu.se 023 */ 024 package se.liu.ida.critiquer.constraints; 025 026 import java.awt.Color; 027 import java.io.Serializable; 028 import java.util.List; 029 030 import se.liu.ida.critiquer.gui.View; 031 import se.liu.ida.critiquer.gui.ViewRenderingListener; 032 033 /** 034 * Visual constraints can be rendered on top of the views and also have colors 035 * that the user may modify. 036 * 037 * Currently, every constraint has only one color associated with 038 */ 039 040 public interface VisualConstraint extends ViewRenderingListener, Serializable { 041 042 public Color getColor(); 043 044 public void setColor(Color c); 045 046 public List<Class<? extends View>> getApplicableViews(); 047 048 public boolean isApplicableFor(View view); 049 050 /** 051 * Toggles the active state of this constraint on and off. This does not affect 052 * that updates that this constraint gets from the activities though 053 * 054 * @param active 055 */ 056 public void setActive(boolean active); 057 058 /** 059 * Should this constraint be displayed? 060 * 061 * @return true iff this constraint should be displayed 062 */ 063 064 public boolean isActive(); 065 }