| /* DefaultBoundedRangeModel.java -- |
| Copyright (C) 2002 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath 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, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package javax.swing; |
| |
| // Imports |
| import java.io.*; |
| import java.util.*; |
| import javax.swing.event.*; |
| |
| /** |
| * DefaultBoundedRangeModel |
| * @author Andrew Selkirk |
| * @version 1.0 |
| */ |
| public class DefaultBoundedRangeModel implements BoundedRangeModel, Serializable { |
| |
| //------------------------------------------------------------- |
| // Variables -------------------------------------------------- |
| //------------------------------------------------------------- |
| |
| /** |
| * changeEvent |
| */ |
| protected transient ChangeEvent changeEvent = new ChangeEvent(this); |
| |
| /** |
| * listenerList |
| */ |
| protected EventListenerList listenerList = new EventListenerList(); |
| |
| /** |
| * value |
| */ |
| private int value; |
| |
| /** |
| * extent |
| */ |
| private int extent; |
| |
| /** |
| * minimum |
| */ |
| private int minimum; |
| |
| /** |
| * maximum |
| */ |
| private int maximum; |
| |
| /** |
| * isAdjusting |
| */ |
| private boolean isAdjusting; |
| |
| |
| //------------------------------------------------------------- |
| // Initialization --------------------------------------------- |
| //------------------------------------------------------------- |
| |
| /** |
| * Constructor DefaultBoundedRangeModel |
| */ |
| public DefaultBoundedRangeModel() { |
| setRangeProperties(0, 0, 0, 100, false); |
| } // DefaultBoundedRangeModel() |
| |
| /** |
| * Constructor DefaultBoundedRangeModel |
| * @param value TODO |
| * @param extent TODO |
| * @param minimum TODO |
| * @param maximum TODO |
| */ |
| public DefaultBoundedRangeModel(int value, int extent, |
| int minimum, int maximum) { |
| setRangeProperties(value, extent, minimum, maximum, false); |
| } // DefaultBoundedRangeModel() |
| |
| |
| //------------------------------------------------------------- |
| // Methods ---------------------------------------------------- |
| //------------------------------------------------------------- |
| |
| /** |
| * toString |
| * @returns String |
| */ |
| public String toString() { |
| return null; // TODO |
| } // toString() |
| |
| /** |
| * getValue |
| * @returns int |
| */ |
| public int getValue() { |
| return value; |
| } // getValue() |
| |
| /** |
| * setValue |
| * @param value TODO |
| */ |
| public void setValue(int value) { |
| |
| // Validate Constraints |
| if (minimum > value || value > (value + extent) || |
| (value + extent) > maximum) { |
| throw new IllegalArgumentException("Invalid value property set"); |
| } // if |
| |
| // Set Value |
| this.value = value; |
| |
| // Notification |
| fireStateChanged(); |
| |
| } // setValue() |
| |
| /** |
| * getExtent |
| * @returns int |
| */ |
| public int getExtent() { |
| return extent; |
| } // getExtent() |
| |
| /** |
| * setExtent |
| * @param extent TODO |
| */ |
| public void setExtent(int extent) { |
| |
| // Validate Constraints |
| if (minimum > value || value > (value + extent) || |
| (value + extent) > maximum) { |
| throw new IllegalArgumentException("Invalid extent property set"); |
| } // if |
| |
| // Set Extent |
| this.extent = extent; |
| |
| // Notification |
| fireStateChanged(); |
| |
| } // setExtent() |
| |
| /** |
| * getMinimum |
| * @returns int |
| */ |
| public int getMinimum() { |
| return minimum; |
| } // getMinimum() |
| |
| /** |
| * setMinimum |
| * @param minimum TODO |
| */ |
| public void setMinimum(int minimum) { |
| |
| // Validate Constraints |
| if (minimum > value || value > (value + extent) || |
| (value + extent) > maximum) { |
| throw new IllegalArgumentException("Invalid minimum property set"); |
| } // if |
| |
| // Set Minimum |
| this.minimum = minimum; |
| |
| // Notification |
| fireStateChanged(); |
| |
| } // setMinimum() |
| |
| /** |
| * getMaximum |
| * @returns int |
| */ |
| public int getMaximum() { |
| return maximum; |
| } // getMaximum() |
| |
| /** |
| * setMaximum |
| * @param maximum TODO |
| */ |
| public void setMaximum(int maximum) { |
| |
| // Validate Constraints |
| if (minimum > value || value > (value + extent) || |
| (value + extent) > maximum) { |
| throw new IllegalArgumentException("Invalid maximum property set"); |
| } // if |
| |
| // Set Maximum |
| this.maximum = maximum; |
| |
| // Notification |
| fireStateChanged(); |
| |
| } // setMaximum() |
| |
| /** |
| * getValueIsAdjusting |
| * @returns boolean |
| */ |
| public boolean getValueIsAdjusting() { |
| return isAdjusting; |
| } // getValueIsAdjusting() |
| |
| /** |
| * setValueIsAdjusting |
| * @param isAdjusting TODO |
| */ |
| public void setValueIsAdjusting(boolean isAdjusting) { |
| |
| // Set isAdjusting |
| this.isAdjusting = isAdjusting; |
| |
| // Notification |
| fireStateChanged(); |
| |
| } // setValueIsAdjusting() |
| |
| /** |
| * setRangeProperties |
| * @param value TODO |
| * @param extent TODO |
| * @param minimum TODO |
| * @param maximum TODO |
| * @param isAdjusting TODO |
| */ |
| public void setRangeProperties(int value, int extent, int minimum, |
| int maximum, boolean isAdjusting) { |
| |
| // Validate Constraints |
| if (minimum > value || value > (value + extent) || |
| (value + extent) > maximum) { |
| throw new IllegalArgumentException("Invalid property set"); |
| } // if |
| |
| // Set Data |
| this.value = value; |
| this.extent = extent; |
| this.minimum = minimum; |
| this.maximum = maximum; |
| this.isAdjusting = isAdjusting; |
| |
| // Notification |
| fireStateChanged(); |
| |
| } // setRangeProperties() |
| |
| /** |
| * addChangeListener |
| * @param listener TODO |
| */ |
| public void addChangeListener(ChangeListener listener) { |
| listenerList.add(ChangeListener.class, listener); |
| } // addChangeListener() |
| |
| /** |
| * removeChangeListener |
| * @param listener TODO |
| */ |
| public void removeChangeListener(ChangeListener listener) { |
| listenerList.remove(ChangeListener.class, listener); |
| } // removeChangeListener() |
| |
| /** |
| * fireStateChanged |
| */ |
| protected void fireStateChanged() { |
| |
| // Variables |
| ChangeListener listener; |
| EventListener[] listeners; |
| int index; |
| |
| // Get Listeners |
| listeners = listenerList.getListeners(ChangeListener.class); |
| |
| // Process Listeners |
| for (index = 0; index < listeners.length; index++) { |
| listener = (ChangeListener) listeners[index]; |
| listener.stateChanged(changeEvent); |
| } // for |
| |
| } // fireStateChanged() |
| |
| /** |
| * getListeners |
| * @param c TODO |
| * @returns EventListener[] |
| */ |
| public EventListener[] getListeners(Class c) { |
| return listenerList.getListeners(c); |
| } // getListeners() |
| |
| /** |
| * getChangeListeners |
| */ |
| public ChangeListener[] getChangeListeners() |
| { |
| // FIXME: implement this |
| return null; |
| } |
| |
| |
| } // DefaultBoundedRangeModel |