com.jgoodies.looks.plastic.PlasticTreeUI Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jgoodies-looks Show documentation
Show all versions of jgoodies-looks Show documentation
The JGoodies Looks make your Swing applications and
applets look better. They have been optimized for readability,
precise micro-design and usability. And they simplify
the multi-platform support by using similar widget dimensions.
In addition, many people have reviewed them as elegant.
/*
* Copyright (c) 2001-2012 JGoodies Karsten Lentzsch. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* o Neither the name of JGoodies Karsten Lentzsch nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jgoodies.looks.plastic;
import java.awt.Component;
import java.awt.Graphics;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.Icon;
import javax.swing.JComponent;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.basic.BasicTreeUI;
import com.jgoodies.looks.Options;
/**
* The JGoodies Plastic Look&Feel implementation of {@code TreeUI}.
* It provides two line styles: angled dashed lines, or no lines at all.
* By default, lines are drawn.
*
* You can change the line style by setting a client property.
* The property key and values are a subset of the values used
* by the Metal L&F tree. To hide lines use one of the following:
*
* JTree tree1 = new JTree();
* tree1.putClientProperty("JTree.lineStyle", "None");
*
* JTree tree2 = new JTree();
* tree1.putClientProperty(Options.TREE_LINE_STYLE_KEY,
* Options.TREE_LINE_STYLE_NONE_VALUE);
*
*
* Although lines are shown by default, you could code:
*
* JTree tree1 = new JTree();
* tree1.putClientProperty("JTree.lineStyle", "Angled");
*
* JTree tree2 = new JTree();
* tree1.putClientProperty(Options.TREE_LINE_STYLE_KEY,
* Options.TREE_LINE_STYLE_ANGLED_VALUE);
*
*
* @author Karsten Lentzsch
* @version $Revision: 1.9 $
*/
public final class PlasticTreeUI extends BasicTreeUI {
private boolean linesEnabled = true;
private PropertyChangeListener lineStyleHandler;
public static ComponentUI createUI(JComponent b) {
return new PlasticTreeUI();
}
// Installation ***********************************************************
@Override
public void installUI(JComponent c) {
super.installUI(c);
updateLineStyle(c.getClientProperty(Options.TREE_LINE_STYLE_KEY));
lineStyleHandler = new LineStyleHandler();
c.addPropertyChangeListener(lineStyleHandler);
}
@Override
public void uninstallUI(JComponent c) {
c.removePropertyChangeListener(lineStyleHandler);
super.uninstallUI(c);
}
// Painting ***************************************************************
@Override
protected void paintVerticalLine(Graphics g, JComponent c, int x, int top, int bottom) {
if (linesEnabled) {
drawDashedVerticalLine(g, x, top, bottom);
}
}
@Override
protected void paintHorizontalLine(Graphics g, JComponent c, int y, int left, int right) {
if (linesEnabled) {
drawDashedHorizontalLine(g, y, left, right);
}
}
// Draws the icon centered at (x,y)
@Override
protected void drawCentered(Component c, Graphics graphics, Icon icon, int x, int y) {
icon.paintIcon(
c,
graphics,
x - icon.getIconWidth() / 2 - 1,
y - icon.getIconHeight() / 2);
}
// Helper Code ************************************************************
private void updateLineStyle(Object lineStyle) {
linesEnabled = !Options.TREE_LINE_STYLE_NONE_VALUE.equals(lineStyle);
}
// Listens for changes of the line style property
private class LineStyleHandler implements PropertyChangeListener {
@Override
public void propertyChange(PropertyChangeEvent e) {
String name = e.getPropertyName();
Object value = e.getNewValue();
if (name.equals(Options.TREE_LINE_STYLE_KEY)) {
updateLineStyle(value);
}
}
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy