001/* =========================================================== 002 * Orson Charts : a 3D chart library for the Java(tm) platform 003 * =========================================================== 004 * 005 * (C)opyright 2013-2022, by David Gilbert. All rights reserved. 006 * 007 * https://github.com/jfree/orson-charts 008 * 009 * This program is free software: you can redistribute it and/or modify 010 * it under the terms of the GNU General Public License as published by 011 * the Free Software Foundation, either version 3 of the License, or 012 * (at your option) any later version. 013 * 014 * This program is distributed in the hope that it will be useful, 015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 017 * GNU General Public License for more details. 018 * 019 * You should have received a copy of the GNU General Public License 020 * along with this program. If not, see <http://www.gnu.org/licenses/>. 021 * 022 * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 023 * Other names may be trademarks of their respective owners.] 024 * 025 * If you do not wish to be bound by the terms of the GPL, an alternative 026 * commercial license can be purchased. For details, please see visit the 027 * Orson Charts home page: 028 * 029 * http://www.object-refinery.com/orsoncharts/index.html 030 * 031 */ 032 033package org.jfree.chart3d.table; 034 035import java.awt.Color; 036import java.awt.Graphics2D; 037import java.awt.Insets; 038import java.awt.Shape; 039import java.awt.geom.AffineTransform; 040import java.awt.geom.Dimension2D; 041import java.awt.geom.Rectangle2D; 042import java.util.ArrayList; 043import java.util.List; 044import java.util.Map; 045 046import org.jfree.chart3d.internal.Args; 047 048/** 049 * A table element that displays a shape. 050 * <br><br> 051 * NOTE: This class is serializable, but the serialization format is subject 052 * to change in future releases and should not be relied upon for persisting 053 * instances of this class. 054 */ 055@SuppressWarnings("serial") 056public class ShapeElement extends AbstractTableElement 057 implements TableElement { 058 059 /** 060 * The shape (by convention, the shape should be centered on the point 061 * (0, 0)). 062 */ 063 private final Shape shape; 064 065 private Color fillColor; 066 067 /** 068 * Creates a new shape element. 069 * 070 * @param shape the shape ({@code null} not permitted). 071 * @param fillColor the fill color ({@code null} not permitted). 072 */ 073 public ShapeElement(Shape shape, Color fillColor) { 074 super(); 075 Args.nullNotPermitted(shape, "shape"); 076 Args.nullNotPermitted(fillColor, "fillColor"); 077 this.shape = shape; 078 this.fillColor = fillColor; 079 } 080 081 /** 082 * Returns the fill color. 083 * 084 * @return The fill color. 085 * 086 * @since 1.2 087 */ 088 public Color getFillColor() { 089 return this.fillColor; 090 } 091 092 /** 093 * Sets the fill color. 094 * 095 * @param color the fill color ({@code null} not permitted). 096 * 097 * @since 1.2 098 */ 099 public void setFillColor(Color color) { 100 Args.nullNotPermitted(color, "color"); 101 this.fillColor = color; 102 } 103 104 @Override 105 public Dimension2D preferredSize(Graphics2D g2, Rectangle2D bounds, 106 Map<String, Object> constraints) { 107 Insets insets = getInsets(); 108 Rectangle2D shapeBounds = shape.getBounds2D(); 109 return new ElementDimension(Math.min(shapeBounds.getWidth() 110 + insets.left + insets.right, bounds.getWidth()), 111 Math.min(shapeBounds.getHeight() + insets.top + insets.bottom, 112 bounds.getHeight())); 113 } 114 115 @Override 116 public List<Rectangle2D> layoutElements(Graphics2D g2, Rectangle2D bounds, 117 Map<String, Object> constraints) { 118 List<Rectangle2D> result = new ArrayList<>(1); 119 Insets insets = getInsets(); 120 Rectangle2D shapeBounds = this.shape.getBounds2D(); 121 double w = Math.min(shapeBounds.getWidth() + insets.left + insets.right, 122 bounds.getWidth()); 123 double h = Math.min(shapeBounds.getHeight() + insets.top 124 + insets.bottom, bounds.getHeight()); 125 Rectangle2D pos = new Rectangle2D.Double(bounds.getCenterX() - w / 2.0, 126 bounds.getCenterY() - h / 2.0, w, h); 127 result.add(pos); 128 return result; 129 } 130 131 /** 132 * Draws the shape element within the specified bounds. 133 * 134 * @param g2 the graphics target ({@code null} not permitted). 135 * @param bounds the bounds ({@code null} not permitted). 136 */ 137 @Override 138 public void draw(Graphics2D g2, Rectangle2D bounds) { 139 draw(g2, bounds, null); 140 } 141 142 /** 143 * Draws the element within the specified bounds. If the 144 * {@code recordBounds} flag is set, this element and each of its 145 * children will have their {@code BOUNDS_2D} property updated with 146 * the current bounds. 147 * 148 * @param g2 the graphics target ({@code null} not permitted). 149 * @param bounds the bounds ({@code null} not permitted). 150 * @param onDrawHandler an object that will receive notification before 151 * and after the element is drawn ({@code null} permitted). 152 * 153 * @since 1.3 154 */ 155 @Override 156 public void draw(Graphics2D g2, Rectangle2D bounds, 157 TableElementOnDraw onDrawHandler) { 158 if (onDrawHandler != null) { 159 onDrawHandler.beforeDraw(this, g2, bounds); 160 } 161 AffineTransform saved = g2.getTransform(); 162 RectanglePainter background = getBackground(); 163 if (background != null) { 164 background.fill(g2, bounds); 165 } 166 g2.translate(bounds.getCenterX(), bounds.getCenterY()); 167 g2.setPaint(this.fillColor); 168 g2.fill(shape); 169 g2.setTransform(saved); 170 if (onDrawHandler != null) { 171 onDrawHandler.afterDraw(this, g2, bounds); 172 } 173 } 174 175 /** 176 * Receives a visitor. 177 * 178 * @param visitor the visitor ({@code null} not permitted). 179 * 180 * @since 1.2 181 */ 182 @Override 183 public void receive(TableElementVisitor visitor) { 184 visitor.visit(this); 185 } 186 187 /** 188 * Returns a string representation of this element, primarily for 189 * debugging purposes. 190 * 191 * @return A string representation of this element. 192 */ 193 @Override 194 public String toString() { 195 return "ShapeElement[shape=" + this.shape + "]"; 196 } 197 198}