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1: /** 2: * ======================================== 3: * JFreeReport : a free Java report library 4: * ======================================== 5: * 6: * Project Info: http://reporting.pentaho.org/ 7: * 8: * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors. 9: * 10: * This library is free software; you can redistribute it and/or modify it under the terms 11: * of the GNU Lesser General Public License as published by the Free Software Foundation; 12: * either version 2.1 of the License, or (at your option) any later version. 13: * 14: * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 15: * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 16: * See the GNU Lesser General Public License for more details. 17: * 18: * You should have received a copy of the GNU Lesser General Public License along with this 19: * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, 20: * Boston, MA 02111-1307, USA. 21: * 22: * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 23: * in the United States and other countries.] 24: * 25: * ------------ 26: * $Id: ScalingExtendedDrawable.java 3525 2007-10-16 11:43:48Z tmorgner $ 27: * ------------ 28: * (C) Copyright 2000-2005, by Object Refinery Limited. 29: * (C) Copyright 2005-2007, by Pentaho Corporation. 30: */ 31: package org.jfree.report.util; 32: 33: import java.awt.Dimension; 34: import java.awt.Graphics2D; 35: import java.awt.geom.Rectangle2D; 36: 37: import org.jfree.ui.ExtendedDrawable; 38: 39: /** 40: * Creation-Date: 20.01.2006, 19:46:10 41: * 42: * @author Thomas Morgner 43: */ 44: public class ScalingExtendedDrawable implements ExtendedDrawable 45: { 46: private float scaleX; 47: private float scaleY; 48: private ExtendedDrawable drawable; 49: 50: public ScalingExtendedDrawable() 51: { 52: scaleX = 1; 53: scaleY = 1; 54: } 55: 56: public ExtendedDrawable getDrawable() 57: { 58: return drawable; 59: } 60: 61: public void setDrawable(final ExtendedDrawable drawable) 62: { 63: this.drawable = drawable; 64: } 65: 66: public float getScaleY() 67: { 68: return scaleY; 69: } 70: 71: public void setScaleY(final float scaleY) 72: { 73: this.scaleY = scaleY; 74: } 75: 76: public float getScaleX() 77: { 78: return scaleX; 79: } 80: 81: public void setScaleX(final float scaleX) 82: { 83: this.scaleX = scaleX; 84: } 85: 86: /** 87: * Returns the preferred size of the drawable. If the drawable is aspect ratio 88: * aware, these bounds should be used to compute the preferred aspect ratio 89: * for this drawable. 90: * 91: * @return the preferred size. 92: */ 93: public Dimension getPreferredSize() 94: { 95: if (drawable == null) 96: { 97: return new Dimension(0,0); 98: } 99: 100: final Dimension dim = drawable.getPreferredSize(); 101: if (dim == null) 102: { 103: return null; 104: } 105: dim.setSize(scaleX * dim.getWidth(), scaleY * dim.getHeight()); 106: return dim; 107: } 108: 109: /** 110: * Returns true, if this drawable will preserve an aspect ratio during the 111: * drawing. 112: * 113: * @return true, if an aspect ratio is preserved, false otherwise. 114: */ 115: public boolean isPreserveAspectRatio() 116: { 117: if (drawable == null) 118: { 119: return false; 120: } 121: return drawable.isPreserveAspectRatio(); 122: } 123: 124: /** 125: * Draws the object. 126: * 127: * @param g2 the graphics device. 128: * @param area the area inside which the object should be drawn. 129: */ 130: public void draw(final Graphics2D g2, final Rectangle2D area) 131: { 132: if (drawable == null) 133: { 134: return; 135: } 136: final Graphics2D derived = (Graphics2D) g2.create(); 137: derived.scale(scaleX, scaleY); 138: final Rectangle2D scaledArea = (Rectangle2D) area.clone(); 139: scaledArea.setRect(scaledArea.getX() * scaleX, scaledArea.getY() * scaleY, 140: scaledArea.getWidth() * scaleX, scaledArea.getHeight() * scaleY); 141: drawable.draw(derived, scaledArea); 142: derived.dispose(); 143: } 144: }