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DefaultCellRenderer.java
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1998-02-26
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/*
* @(#)DefaultCellRenderer.java 1.17 98/01/12
*
* Copyright (c) 1997 Sun Microsystems, Inc. All Rights Reserved.
*
* This software is the confidential and proprietary information of Sun
* Microsystems, Inc. ("Confidential Information"). You shall not
* disclose such Confidential Information and shall use it only in
* accordance with the terms of the license agreement you entered into
* with Sun.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
* SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
* SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
* THIS SOFTWARE OR ITS DERIVATIVES.
*
*/
package com.sun.java.swing;
import java.awt.Component;
import java.awt.Color;
import java.lang.Boolean;
import com.sun.java.swing.table.*;
import com.sun.java.swing.*;
import java.io.Serializable;
/**
* @version 1.17 01/12/98
* @author Hans Muller
* @author Alan Chung
* @see JTable
*/
public class DefaultCellRenderer implements TableCellRenderer, Serializable {
// PENDING(alan): Should use system selection color
protected final static Color selectionColor = new Color(0,0,128);
//
// Instance Variables
//
protected JComponent component;
protected ValueProperty value;
protected Color backgroundColor;
protected Color foregroundColor;
protected Color selectedBackgroundColor;
protected Color selectedForegroundColor;
//
// Constructors
//
public DefaultCellRenderer(JLabel x) {
this.component = x;
x.setOpaque(true);
this.value = new ValueProperty() {
public void setValue(Object x) {
// Set value to empty string so it will display a
// blank cell, and not cause an exception
if (x == null)
x = "";
super.setValue(x);
if (x instanceof Icon)
((JLabel)component).setIcon((Icon)x);
else
((JLabel)component).setText(x.toString());
}
};
// Default label colors
/*
setBackgroundColor(Color.white);
setForegroundColor(Color.black);
setSelectedBackgroundColor(selectionColor);
setSelectedForegroundColor(Color.white);
*/
}
public DefaultCellRenderer(JButton x) {
this.component = x;
this.value = new ValueProperty() {
public void setValue(Object x) {
// Set value to empty string so it will display a
// blank button, and not cause an exception
if (x == null)
x = "";
super.setValue(x);
((JButton)component).setText(x.toString());
}
};
// Default button colors
/*
setBackgroundColor(Color.lightGray);
setForegroundColor(Color.black);
setSelectedBackgroundColor(Color.darkGray);
setSelectedForegroundColor(Color.white);
*/
}
public DefaultCellRenderer(JCheckBox x) {
this.component = x;
this.value = new ValueProperty() {
public void setValue(Object x) {
// Set value to empty string so it will not
// cause an exception
if (x == null)
x = "";
super.setValue(x);
// Try my best to do the right thing with x
if (x instanceof Boolean) {
((JCheckBox)component).setSelected(((Boolean)x).booleanValue());
}
else if (x instanceof String) {
Boolean b = new Boolean((String)x);
((JCheckBox)component).setSelected(b.booleanValue());
}
else {
((JCheckBox)component).setSelected(false);
}
}
};
// Default checkbox colors
/*
setBackgroundColor(Color.white);
setForegroundColor(Color.black);
setSelectedBackgroundColor(selectionColor);
setSelectedForegroundColor(Color.white);
*/
}
//
// Modifying and Querying
//
public void setBackgroundColor(Color newColor) {
backgroundColor = newColor;
}
public Color getBackgroundColor() {
return backgroundColor;
}
public void setForegroundColor(Color newColor) {
foregroundColor = newColor;
}
public Color getForegroundColor() {
return foregroundColor;
}
public void setSelectedBackgroundColor(Color newColor) {
selectedBackgroundColor = newColor;
}
public Color getSelectedBackgroundColor() {
return selectedBackgroundColor;
}
public void setSelectedForegroundColor(Color newColor) {
selectedForegroundColor = newColor;
}
public Color getSelectedForegroundColor() {
return selectedForegroundColor;
}
public void setToolTipText(String text) {
if (component instanceof JComponent)
((JComponent)component).setToolTipText(text);
}
public Component getComponent() {
return component;
}
//
// Implementing TableCellRenderer
//
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus,
int row, int column) {
// PENDING(philip): Hacks for Motif L&F.
// The muddle of if clauses below are minimal hacks that were included
// to make the motif L&F table use the correct selection colors
// for the for the first motif L&F release.
// This all needs to be redone.
if (isSelected) {
if (selectedBackgroundColor == null) {
component.setBackground(UIManager.getColor("textHighlight"));
}
else {
component.setBackground(selectedBackgroundColor);
}
if (selectedForegroundColor == null) {
component.setForeground(UIManager.getColor("textHighlightText"));
}
else {
component.setForeground(selectedForegroundColor);
}
}
else {
// if (backgroundColor != null) {
component.setBackground(backgroundColor);
// }
// else {
// component.setBackground(Color.white);
// }
// if (foregroundColor != null) {
component.setForeground(foregroundColor);
// }
// else {
// component.setForeground(Color.black);
// }
}
this.value.setValue(value);
return component;
}
protected class ValueProperty implements Serializable {
protected Object value;
public void setValue(Object x) {
this.value = x;
}
}
}