001 /* =========================================================== 002 * JFreeChart : a free chart library for the Java(tm) platform 003 * =========================================================== 004 * 005 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 006 * 007 * Project Info: http://www.jfree.org/jfreechart/index.html 008 * 009 * This library is free software; you can redistribute it and/or modify it 010 * under the terms of the GNU Lesser General Public License as published by 011 * the Free Software Foundation; either version 2.1 of the License, or 012 * (at your option) any later version. 013 * 014 * This library is distributed in the hope that it will be useful, but 015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 017 * License for more details. 018 * 019 * You should have received a copy of the GNU Lesser General Public 020 * License along with this library; if not, write to the Free Software 021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 022 * USA. 023 * 024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 025 * in the United States and other countries.] 026 * 027 * ------------- 028 * Zoomable.java 029 * ------------- 030 * 031 * (C) Copyright 2004, by Object Refinery Limited and Contributors. 032 * 033 * Original Author: David Gilbert (for Object Refinery Limited); 034 * Contributor(s): -; 035 * 036 * Changes 037 * ------- 038 * 12-Nov-2004 : Version 1 (DG); 039 * 26-Jan-2004 : Added getOrientation() method (DG); 040 * 041 */ 042 043 package org.jfree.chart.plot; 044 045 import java.awt.geom.Point2D; 046 047 import org.jfree.chart.ChartPanel; 048 049 /** 050 * A plot that is zoomable must implement this interface to provide a 051 * mechanism for the {@link ChartPanel} to control the zooming. 052 */ 053 public interface Zoomable { 054 055 /** 056 * Returns <code>true</code> if the plot's domain is zoomable, and 057 * <code>false</code> otherwise. 058 * 059 * @return A boolean. 060 */ 061 public boolean isDomainZoomable(); 062 063 /** 064 * Returns <code>true</code> if the plot's range is zoomable, and 065 * <code>false</code> otherwise. 066 * 067 * @return A boolean. 068 */ 069 public boolean isRangeZoomable(); 070 071 /** 072 * Returns the orientation of the plot. 073 * 074 * @return The orientation. 075 */ 076 public PlotOrientation getOrientation(); 077 078 /** 079 * Multiplies the range on the domain axis/axes by the specified factor. 080 * 081 * @param factor the zoom factor. 082 * @param state the plot state. 083 * @param source the source point (in Java2D coordinates). 084 */ 085 public void zoomDomainAxes(double factor, PlotRenderingInfo state, 086 Point2D source); 087 088 /** 089 * Zooms in on the domain axes. 090 * 091 * @param lowerPercent the new lower bound. 092 * @param upperPercent the new upper bound. 093 * @param state the plot state. 094 * @param source the source point (in Java2D coordinates). 095 */ 096 public void zoomDomainAxes(double lowerPercent, double upperPercent, 097 PlotRenderingInfo state, Point2D source); 098 099 /** 100 * Multiplies the range on the range axis/axes by the specified factor. 101 * 102 * @param factor the zoom factor. 103 * @param state the plot state. 104 * @param source the source point (in Java2D coordinates). 105 */ 106 public void zoomRangeAxes(double factor, PlotRenderingInfo state, 107 Point2D source); 108 109 /** 110 * Zooms in on the range axes. 111 * 112 * @param lowerPercent the new lower bound. 113 * @param upperPercent the new upper bound. 114 * @param state the plot state. 115 * @param source the source point (in Java2D coordinates). 116 */ 117 public void zoomRangeAxes(double lowerPercent, double upperPercent, 118 PlotRenderingInfo state, Point2D source); 119 120 }