pjs/grendel/widgets/DefaultCellRenderer.java

123 строки
3.3 KiB
Java

/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1997
* Netscape Communications Corporation. All Rights Reserved.
*
* Created: Will Scullin <scullin@netscape.com>, 2 Oct 1997.
*
* Contributors: Jeff Galyan <talisman@anamorphic.com>
*/
package grendel.widgets;
import calypso.util.Assert;
import grendel.ui.Util;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Insets;
import javax.swing.Icon;
import javax.swing.JComponent;
import javax.swing.UIManager;
import javax.swing.plaf.basic.BasicGraphicsUtils;
import javax.swing.border.BevelBorder;
import javax.swing.border.Border;
import javax.swing.BorderFactory;
/**
* The default TreeTable cell renderer. Handles text and not much
* else.
* @see TreeTable
* @see CellRenderer
*/
public class DefaultCellRenderer extends JComponent implements CellRenderer {
protected Object fObject;
protected Object fData;
protected boolean fSelected;
public DefaultCellRenderer() {
// setFont(BasicGraphicsUtils.controlFont);
setFont(Font.decode("SansSerif-12"));
}
// HeaderRenderer Interface
public void setValue(Object aObject, Object aData, boolean aSelected) {
fObject = aObject;
Assert.Assertion(aData != null);
fData = aData;
fSelected = aSelected;
setSize(getPreferredSize());
}
public Component getComponent() {
return this;
}
// Component overloads
public Dimension getPreferredSize() {
Font font = getFont();
String text = fData.toString();
Insets insets = getInsets();
Dimension res = new Dimension(insets.left + insets.right,
insets.top + insets.bottom);
if (font != null && text != null) {
FontMetrics fm = getToolkit().getFontMetrics(font);
res.height += 2 + fm.getHeight();
res.width += 2 + fm.stringWidth(text);
}
return res;
}
public Dimension getMinimumSize() {
return getPreferredSize();
}
public Dimension getMaximumSize() {
return getPreferredSize();
}
public void paint(Graphics g) {
Font font = getFont();
String text = fData.toString();
Insets insets = getInsets();
if (font != null && text != null) {
g.setFont(font);
FontMetrics fm = getToolkit().getFontMetrics(font);
int x = insets.left + 2;
int h = getHeight();
int y = (h - fm.getHeight()) / 2 + fm.getAscent();
g.setColor(fSelected ?
UIManager.getColor("textHighlightText") :
UIManager.getColor("textText"));
Util.DrawTrimmedString(g, text, fm, Util.RIGHT, x, y, getWidth());
}
}
}