| Line | Hits | Source |
|---|---|---|
| 1 | /* | |
| 2 | * Copyright (c) 2005, the JUNG Project and the Regents of the University of | |
| 3 | * California All rights reserved. | |
| 4 | * | |
| 5 | * This software is open-source under the BSD license; see either "license.txt" | |
| 6 | * or http://jung.sourceforge.net/license.txt for a description. | |
| 7 | * | |
| 8 | * Created on Apr 14, 2005 | |
| 9 | */ | |
| 10 | ||
| 11 | package edu.uci.ics.jung.visualization; | |
| 12 | ||
| 13 | import java.awt.Color; | |
| 14 | import java.awt.Component; | |
| 15 | import java.awt.Font; | |
| 16 | import java.awt.Rectangle; | |
| 17 | import java.io.Serializable; | |
| 18 | ||
| 19 | import javax.swing.JComponent; | |
| 20 | import javax.swing.JLabel; | |
| 21 | import javax.swing.border.Border; | |
| 22 | import javax.swing.border.EmptyBorder; | |
| 23 | ||
| 24 | import edu.uci.ics.jung.graph.Edge; | |
| 25 | import edu.uci.ics.jung.graph.Vertex; | |
| 26 | ||
| 27 | /** | |
| 28 | * DefaultGraphLabelRenderer is similar to the cell renderers | |
| 29 | * used by the JTable and JTree jfc classes. | |
| 30 | * | |
| 31 | * @author Tom Nelson - RABA Technologies | |
| 32 | * | |
| 33 | * | |
| 34 | */ | |
| 35 | public class DefaultGraphLabelRenderer extends JLabel implements | |
| 36 | GraphLabelRenderer, Serializable { | |
| 37 | ||
| 38 | 0 | protected static Border noFocusBorder = new EmptyBorder(0,0,0,0); |
| 39 | ||
| 40 | 0 | protected Color pickedVertexLabelColor = Color.black; |
| 41 | 0 | protected Color pickedEdgeLabelColor = Color.black; |
| 42 | protected boolean rotateEdgeLabels; | |
| 43 | ||
| 44 | ||
| 45 | public DefaultGraphLabelRenderer(Color pickedVertexLabelColor, | |
| 46 | Color pickedEdgeLabelColor) { | |
| 47 | 0 | this(pickedVertexLabelColor, pickedEdgeLabelColor, true); |
| 48 | 0 | } |
| 49 | /** | |
| 50 | * Creates a default table cell renderer. | |
| 51 | */ | |
| 52 | public DefaultGraphLabelRenderer(Color pickedVertexLabelColor, | |
| 53 | Color pickedEdgeLabelColor, boolean rotateEdgeLabels) { | |
| 54 | 0 | super(); |
| 55 | 0 | this.pickedVertexLabelColor = pickedVertexLabelColor; |
| 56 | 0 | this.pickedEdgeLabelColor = pickedEdgeLabelColor; |
| 57 | 0 | this.rotateEdgeLabels = rotateEdgeLabels; |
| 58 | 0 | setOpaque(true); |
| 59 | 0 | setBorder(noFocusBorder); |
| 60 | 0 | } |
| 61 | ||
| 62 | /** | |
| 63 | * @return Returns the rotateEdgeLabels. | |
| 64 | */ | |
| 65 | public boolean isRotateEdgeLabels() { | |
| 66 | 0 | return rotateEdgeLabels; |
| 67 | } | |
| 68 | /** | |
| 69 | * @param rotateEdgeLabels The rotateEdgeLabels to set. | |
| 70 | */ | |
| 71 | public void setRotateEdgeLabels(boolean rotateEdgeLabels) { | |
| 72 | 0 | this.rotateEdgeLabels = rotateEdgeLabels; |
| 73 | 0 | } |
| 74 | /** | |
| 75 | * Overrides <code>JComponent.setForeground</code> to assign | |
| 76 | * the unselected-foreground color to the specified color. | |
| 77 | * | |
| 78 | * @param c set the foreground color to this value | |
| 79 | */ | |
| 80 | public void setForeground(Color c) { | |
| 81 | 0 | super.setForeground(c); |
| 82 | 0 | } |
| 83 | ||
| 84 | /** | |
| 85 | * Overrides <code>JComponent.setBackground</code> to assign | |
| 86 | * the unselected-background color to the specified color. | |
| 87 | * | |
| 88 | * @param c set the background color to this value | |
| 89 | */ | |
| 90 | public void setBackground(Color c) { | |
| 91 | 0 | super.setBackground(c); |
| 92 | 0 | } |
| 93 | ||
| 94 | /** | |
| 95 | * Notification from the <code>UIManager</code> that the look and feel | |
| 96 | * [L&F] has changed. | |
| 97 | * Replaces the current UI object with the latest version from the | |
| 98 | * <code>UIManager</code>. | |
| 99 | * | |
| 100 | * @see JComponent#updateUI | |
| 101 | */ | |
| 102 | public void updateUI() { | |
| 103 | 0 | super.updateUI(); |
| 104 | 0 | setForeground(null); |
| 105 | 0 | setBackground(null); |
| 106 | 0 | } |
| 107 | ||
| 108 | /** | |
| 109 | * | |
| 110 | * Returns the default label renderer for a Vertex | |
| 111 | * | |
| 112 | * @param vv the <code>VisualizationViewer</code> to render on | |
| 113 | * @param value the value to assign to the label for | |
| 114 | * <code>Vertex</code> | |
| 115 | * @param vertex the <code>Vertex</code> | |
| 116 | * @return the default label renderer | |
| 117 | */ | |
| 118 | public Component getGraphLabelRendererComponent(JComponent vv, Object value, | |
| 119 | Font font, boolean isSelected, Vertex vertex) { | |
| 120 | ||
| 121 | 0 | super.setForeground(vv.getForeground()); |
| 122 | 0 | if(isSelected) setForeground(pickedVertexLabelColor); |
| 123 | 0 | super.setBackground(vv.getBackground()); |
| 124 | 0 | if(font != null) { |
| 125 | // setFont(vv.getFont()); | |
| 126 | 0 | setFont(font); |
| 127 | } else { | |
| 128 | 0 | setFont(vv.getFont()); |
| 129 | } | |
| 130 | 0 | setIcon(null); |
| 131 | 0 | setBorder(noFocusBorder); |
| 132 | 0 | setValue(value); |
| 133 | 0 | return this; |
| 134 | } | |
| 135 | ||
| 136 | /** | |
| 137 | * | |
| 138 | * Returns the default label renderer for an Edge | |
| 139 | * | |
| 140 | * @param vv the <code>VisualizationViewer</code> to render on | |
| 141 | * @param value the value to assign to the label for | |
| 142 | * <code>Edge</code> | |
| 143 | * @param edge the <code>Edge</code> | |
| 144 | * @return the default label renderer | |
| 145 | */ | |
| 146 | public Component getGraphLabelRendererComponent(JComponent vv, Object value, | |
| 147 | Font font, boolean isSelected, Edge edge) { | |
| 148 | ||
| 149 | 0 | super.setForeground(vv.getForeground()); |
| 150 | 0 | if(isSelected) setForeground(pickedEdgeLabelColor); |
| 151 | 0 | super.setBackground(vv.getBackground()); |
| 152 | ||
| 153 | 0 | if(font != null) { |
| 154 | // setFont(vv.getFont()); | |
| 155 | 0 | setFont(font); |
| 156 | } else { | |
| 157 | 0 | setFont(vv.getFont()); |
| 158 | } | |
| 159 | 0 | setIcon(null); |
| 160 | 0 | setBorder(noFocusBorder); |
| 161 | 0 | setValue(value); |
| 162 | 0 | return this; |
| 163 | } | |
| 164 | ||
| 165 | /* | |
| 166 | * The following methods are overridden as a performance measure to | |
| 167 | * to prune code-paths are often called in the case of renders | |
| 168 | * but which we know are unnecessary. Great care should be taken | |
| 169 | * when writing your own renderer to weigh the benefits and | |
| 170 | * drawbacks of overriding methods like these. | |
| 171 | */ | |
| 172 | ||
| 173 | /** | |
| 174 | * Overridden for performance reasons. | |
| 175 | * See the <a href="#override">Implementation Note</a> | |
| 176 | * for more information. | |
| 177 | */ | |
| 178 | public boolean isOpaque() { | |
| 179 | 0 | Color back = getBackground(); |
| 180 | 0 | Component p = getParent(); |
| 181 | 0 | if (p != null) { |
| 182 | 0 | p = p.getParent(); |
| 183 | } | |
| 184 | 0 | boolean colorMatch = (back != null) && (p != null) && |
| 185 | back.equals(p.getBackground()) && | |
| 186 | p.isOpaque(); | |
| 187 | 0 | return !colorMatch && super.isOpaque(); |
| 188 | } | |
| 189 | ||
| 190 | /** | |
| 191 | * Overridden for performance reasons. | |
| 192 | * See the <a href="#override">Implementation Note</a> | |
| 193 | * for more information. | |
| 194 | */ | |
| 195 | 0 | public void validate() {} |
| 196 | ||
| 197 | /** | |
| 198 | * Overridden for performance reasons. | |
| 199 | * See the <a href="#override">Implementation Note</a> | |
| 200 | * for more information. | |
| 201 | */ | |
| 202 | 0 | public void revalidate() {} |
| 203 | ||
| 204 | /** | |
| 205 | * Overridden for performance reasons. | |
| 206 | * See the <a href="#override">Implementation Note</a> | |
| 207 | * for more information. | |
| 208 | */ | |
| 209 | 0 | public void repaint(long tm, int x, int y, int width, int height) {} |
| 210 | ||
| 211 | /** | |
| 212 | * Overridden for performance reasons. | |
| 213 | * See the <a href="#override">Implementation Note</a> | |
| 214 | * for more information. | |
| 215 | */ | |
| 216 | 0 | public void repaint(Rectangle r) { } |
| 217 | ||
| 218 | /** | |
| 219 | * Overridden for performance reasons. | |
| 220 | * See the <a href="#override">Implementation Note</a> | |
| 221 | * for more information. | |
| 222 | */ | |
| 223 | protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) { | |
| 224 | // Strings get interned... | |
| 225 | 0 | if (propertyName=="text") { |
| 226 | 0 | super.firePropertyChange(propertyName, oldValue, newValue); |
| 227 | } | |
| 228 | 0 | } |
| 229 | ||
| 230 | /** | |
| 231 | * Overridden for performance reasons. | |
| 232 | * See the <a href="#override">Implementation Note</a> | |
| 233 | * for more information. | |
| 234 | */ | |
| 235 | 0 | public void firePropertyChange(String propertyName, boolean oldValue, boolean newValue) { } |
| 236 | ||
| 237 | ||
| 238 | /** | |
| 239 | * Sets the <code>String</code> object for the cell being rendered to | |
| 240 | * <code>value</code>. | |
| 241 | * | |
| 242 | * @param value the string value for this cell; if value is | |
| 243 | * <code>null</code> it sets the text value to an empty string | |
| 244 | * @see JLabel#setText | |
| 245 | * | |
| 246 | */ | |
| 247 | protected void setValue(Object value) { | |
| 248 | 0 | setText((value == null) ? "" : value.toString()); |
| 249 | 0 | } |
| 250 | } |
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