| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to you under the Apache License, |
| * Version 2.0 (the "License"); you may not use this file except in |
| * compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.pivot.wtk; |
| |
| import org.apache.pivot.util.ListenerList; |
| |
| /** |
| * Component that displays progress information. |
| */ |
| public class Meter extends Component { |
| private static class MeterListenerList extends WTKListenerList<MeterListener> implements |
| MeterListener { |
| @Override |
| public void orientationChanged(Meter meter) { |
| for (MeterListener listener : this) { |
| listener.orientationChanged(meter); |
| } |
| } |
| |
| @Override |
| public void percentageChanged(Meter meter, double oldPercentage) { |
| for (MeterListener listener : this) { |
| listener.percentageChanged(meter, oldPercentage); |
| } |
| } |
| |
| @Override |
| public void textChanged(Meter meter, String oldText) { |
| for (MeterListener listener : this) { |
| listener.textChanged(meter, oldText); |
| } |
| } |
| } |
| |
| private double percentage = 0.0; |
| private String text = null; |
| private Orientation orientation = null; |
| private MeterListenerList meterListeners = new MeterListenerList(); |
| |
| public Meter() { |
| this(Orientation.HORIZONTAL); |
| } |
| |
| public Meter(Orientation orientation) { |
| this.orientation = orientation; |
| installSkin(Meter.class); |
| } |
| |
| public double getPercentage() { |
| return percentage; |
| } |
| |
| public void setPercentage(double percentage) { |
| if (percentage < 0.0 || percentage > 1.0) { |
| throw new IllegalArgumentException("Percentage must be a number between 0 and 1"); |
| } |
| |
| double previousPercentage = this.percentage; |
| |
| if (previousPercentage != percentage) { |
| this.percentage = percentage; |
| meterListeners.percentageChanged(this, previousPercentage); |
| } |
| } |
| |
| public String getText() { |
| return text; |
| } |
| |
| public void setText(String text) { |
| String previousText = this.text; |
| this.text = text; |
| meterListeners.textChanged(this, previousText); |
| } |
| |
| public Orientation getOrientation() { |
| return orientation; |
| } |
| |
| public void setOrientation(Orientation orientation) { |
| if (orientation == null) { |
| throw new IllegalArgumentException("orientation is null."); |
| } |
| |
| if (this.orientation != orientation) { |
| this.orientation = orientation; |
| meterListeners.orientationChanged(this); |
| } |
| } |
| |
| public ListenerList<MeterListener> getMeterListeners() { |
| return meterListeners; |
| } |
| } |