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1: /* DefaultTableCellRenderer.java -- 2: Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package javax.swing.table; 40: 41: import java.awt.Color; 42: import java.awt.Component; 43: import java.awt.Rectangle; 44: import java.io.Serializable; 45: 46: import javax.swing.JLabel; 47: import javax.swing.JTable; 48: import javax.swing.border.Border; 49: import javax.swing.border.EmptyBorder; 50: import javax.swing.JTextField; 51: 52: /** 53: * Class to display every cells. 54: */ 55: public class DefaultTableCellRenderer extends JLabel 56: implements TableCellRenderer, Serializable 57: { 58: static final long serialVersionUID = 7878911414715528324L; 59: 60: protected static Border noFocusBorder = new EmptyBorder(0, 0, 0, 0); 61: 62: public static class UIResource extends DefaultTableCellRenderer 63: implements javax.swing.plaf.UIResource 64: { 65: public UIResource() 66: { 67: } 68: } 69: 70: /** 71: * Creates a default table cell renderer with an empty border. 72: */ 73: public DefaultTableCellRenderer() 74: { 75: super(); 76: } 77: 78: /** 79: * Assign the unselected-foreground. 80: * 81: * @param c the color to assign 82: */ 83: public void setForeground(Color c) 84: { 85: super.setForeground(c); 86: } 87: 88: /** 89: * Assign the unselected-background. 90: * 91: * @param c the color to assign 92: */ 93: public void setBackground(Color c) 94: { 95: super.setBackground(c); 96: } 97: 98: /** 99: * Look and feel has changed. 100: * 101: * <p>Replaces the current UI object with the latest version from 102: * the UIManager.</p> 103: */ 104: public void updateUI() 105: { 106: super.updateUI(); 107: } 108: 109: /** 110: * Get the string value of the object and pass it to setText(). 111: * 112: * @param table the JTable 113: * @param value the value of the object 114: * @param isSelected is the cell selected? 115: * @param hasFocus has the cell the focus? 116: * @param row the row to render 117: * @param column the cell to render 118: * 119: * @return this component (the default table cell renderer) 120: */ 121: public Component getTableCellRendererComponent(JTable table, Object value, 122: boolean isSelected, 123: boolean hasFocus, 124: int row, int column) 125: { 126: if (value != null) 127: { 128: if (value instanceof JTextField) 129: return new JTextField(((JTextField)value).getText()); 130: super.setText(value.toString()); 131: } 132: 133: setOpaque(true); 134: 135: if (table == null) 136: return this; 137: 138: if (isSelected) 139: { 140: setBackground(table.getSelectionBackground()); 141: setForeground(table.getSelectionForeground()); 142: } 143: else 144: { 145: setBackground(table.getBackground()); 146: setForeground(table.getForeground()); 147: } 148: 149: setEnabled(table.isEnabled()); 150: setFont(table.getFont()); 151: return this; 152: } 153: 154: /** 155: * Overriden for performance. 156: * 157: * <p>This method needs to be overridden in a subclass to actually 158: * do something.</p> 159: * 160: * @return always true 161: */ 162: public boolean isOpaque() 163: { 164: return true; 165: } 166: 167: /** 168: * Overriden for performance. 169: * 170: * <p>This method needs to be overridden in a subclass to actually 171: * do something.</p> 172: */ 173: public void validate() 174: { 175: // Does nothing. 176: } 177: 178: public void revalidate() 179: { 180: // Does nothing. 181: } 182: 183: /** 184: * Overriden for performance. 185: * 186: * <p>This method needs to be overridden in a subclass to actually 187: * do something.</p> 188: */ 189: public void repaint(long tm, int x, int y, int width, int height) 190: { 191: // Does nothing. 192: } 193: 194: /** 195: * Overriden for performance. 196: * 197: * <p>This method needs to be overridden in a subclass to actually 198: * do something.</p> 199: */ 200: public void repaint(Rectangle r) 201: { 202: // Does nothing. 203: } 204: 205: /** 206: * Overriden for performance. 207: * 208: * <p>This method needs to be overridden in a subclass to actually 209: * do something.</p> 210: */ 211: protected void firePropertyChange(String propertyName, Object oldValue, 212: Object newValue) 213: { 214: // Does nothing. 215: } 216: 217: /** 218: * Overriden for performance. 219: * 220: * <p>This method needs to be overridden in a subclass to actually 221: * do something.</p> 222: */ 223: public void firePropertyChange(String propertyName, boolean oldValue, 224: boolean newValue) 225: { 226: // Does nothing. 227: } 228: 229: /** 230: * Sets the String for this cell. 231: * 232: * @param value the string value for this cell; if value is null it 233: * sets the text value to an empty string 234: */ 235: protected void setValue(Object value) 236: { 237: super.setText((value!=null) ? value.toString() : ""); 238: } 239: }
GNU Classpath (0.18) |