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1: /* =========================================================== 2: * JFreeChart : a free chart library for the Java(tm) platform 3: * =========================================================== 4: * 5: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 6: * 7: * Project Info: http://www.jfree.org/jfreechart/index.html 8: * 9: * This library is free software; you can redistribute it and/or modify it 10: * under the terms of the GNU Lesser General Public License as published by 11: * the Free Software Foundation; either version 2.1 of the License, or 12: * (at your option) any later version. 13: * 14: * This library is distributed in the hope that it will be useful, but 15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 17: * License for more details. 18: * 19: * You should have received a copy of the GNU Lesser General Public 20: * License along with this library; if not, write to the Free Software 21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 22: * USA. 23: * 24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 25: * in the United States and other countries.] 26: * 27: * ------------- 28: * Zoomable.java 29: * ------------- 30: * 31: * (C) Copyright 2004, by Object Refinery Limited and Contributors. 32: * 33: * Original Author: David Gilbert (for Object Refinery Limited); 34: * Contributor(s): -; 35: * 36: * Changes 37: * ------- 38: * 12-Nov-2004 : Version 1 (DG); 39: * 26-Jan-2004 : Added getOrientation() method (DG); 40: * 41: */ 42: 43: package org.jfree.chart.plot; 44: 45: import java.awt.geom.Point2D; 46: 47: import org.jfree.chart.ChartPanel; 48: 49: /** 50: * A plot that is zoomable must implement this interface to provide a 51: * mechanism for the {@link ChartPanel} to control the zooming. 52: */ 53: public interface Zoomable { 54: 55: /** 56: * Returns <code>true</code> if the plot's domain is zoomable, and 57: * <code>false</code> otherwise. 58: * 59: * @return A boolean. 60: */ 61: public boolean isDomainZoomable(); 62: 63: /** 64: * Returns <code>true</code> if the plot's range is zoomable, and 65: * <code>false</code> otherwise. 66: * 67: * @return A boolean. 68: */ 69: public boolean isRangeZoomable(); 70: 71: /** 72: * Returns the orientation of the plot. 73: * 74: * @return The orientation. 75: */ 76: public PlotOrientation getOrientation(); 77: 78: /** 79: * Multiplies the range on the domain axis/axes by the specified factor. 80: * 81: * @param factor the zoom factor. 82: * @param state the plot state. 83: * @param source the source point (in Java2D coordinates). 84: */ 85: public void zoomDomainAxes(double factor, PlotRenderingInfo state, 86: Point2D source); 87: 88: /** 89: * Zooms in on the domain axes. 90: * 91: * @param lowerPercent the new lower bound. 92: * @param upperPercent the new upper bound. 93: * @param state the plot state. 94: * @param source the source point (in Java2D coordinates). 95: */ 96: public void zoomDomainAxes(double lowerPercent, double upperPercent, 97: PlotRenderingInfo state, Point2D source); 98: 99: /** 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: }