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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2009 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common
* Development and Distribution License("CDDL") (collectively, the
* "License"). You may not use this file except in compliance with the
* License. You can obtain a copy of the License at
* http://www.netbeans.org/cddl-gplv2.html
* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
* specific language governing permissions and limitations under the
* License. When distributing the software, include this License Header
* Notice in each file and include the License file at
* nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the
* License Header, with the fields enclosed by brackets [] replaced by
* your own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
*
* Contributor(s):
*
* The Original Software is NetBeans. The Initial Developer of the Original
* Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
* Microsystems, Inc. All Rights Reserved.
*
* If you wish your version of this file to be governed by only the CDDL
* or only the GPL Version 2, indicate your decision by adding
* "[Contributor] elects to include this software in this distribution
* under the [CDDL or GPL Version 2] license." If you do not indicate a
* single choice of license, a recipient has the option to distribute
* your version of this file under either the CDDL, the GPL Version 2 or
* to extend the choice of license to its licensees as provided above.
* However, if you add GPL Version 2 code and therefore, elected the GPL
* Version 2 license, then the option applies only if the new code is
* made subject to such option by the copyright holder.
*/
package org.netbeans.validation.api.ui.swing;
import java.awt.Dimension;
import java.lang.ref.WeakReference;
import javax.swing.JLabel;
import javax.swing.ToolTipManager;
import org.netbeans.validation.api.Problem;
import org.netbeans.validation.api.ui.ValidationUI;
import org.openide.util.NbBundle;
/**
* Label which uses a fixed height based on its icon and text. Uses
* multiline label UI to render multi-line text
*
* @author Tim Boudreau
*/
final class MultilineLabel extends JLabel {
private final boolean isPopup;
MultilineLabel() {
this(false);
}
MultilineLabel(boolean isPopup) {
this.isPopup = isPopup;
}
boolean isPopup() {
return isPopup;
}
@Override
public void updateUI() {
setUI (new MultilineLabelUI());
}
private int tallest = Integer.MIN_VALUE;
@Override
public Dimension getPreferredSize() {
Dimension result = super.getPreferredSize();
if (!isPopup && !isPreferredSizeSet()) {
if (tallest < result.height) {
tallest = result.height;
}
result.height = tallest;
}
return result;
}
private int knownWidth = -1;
@Override
@SuppressWarnings("deprecation")
public void reshape(int x, int y, int w, int h) {
//May be deprecated, but AWT will call it internally - this is the
//place to intercept size changes other than a listener
if (!isPopup) {
if (w != knownWidth) {
knownWidth = w;
tallest = Integer.MIN_VALUE;
}
}
super.reshape(x, y, w, h);
}
@Override
public void addNotify() {
super.addNotify();
if (!isPopup) {
ToolTipManager.sharedInstance().registerComponent(this);
}
}
@Override
public void removeNotify() {
super.removeNotify();
if (!isPopup) {
ToolTipManager.sharedInstance().unregisterComponent(this);
}
}
@Override
public String getToolTipText() {
String s = getText();
if (s != null && !"".equals(s.trim())) {
return htmlize(s);
}
return super.getToolTipText();
}
private static String htmlize(String s) {
StringBuilder res = new StringBuilder("<html>");
String[] words = s.split(" ");
boolean newline = false;
int ct = 0;
for (String word : words) {
ct += word.length();
newline = ct > 80;
if(newline) {
res.append ("<br>");
ct = 0;
}
res.append(word);
res.append(' ');
}
return res.toString();
}
ValidationUI createUI() {
return new LblUI(this);
}
private static final class LblUI implements ValidationUI {
//Don't allow the group to hold a reference to the label permanetly
private final WeakReference<JLabel> label;
LblUI(JLabel lbl) {
assert lbl != null;
this.label = new WeakReference<JLabel>(lbl);
}
@Override
public void showProblem(Problem problem) {
JLabel lbl = label.get();
if (lbl != null) {
if (problem == null) {
lbl.setText(" ");
lbl.setIcon(null);
lbl.getAccessibleContext().setAccessibleName(
NbBundle.getMessage(MultilineLabel.class,
"WARNING_LABEL"));
lbl.getAccessibleContext().setAccessibleDescription("");
} else {
lbl.setText(problem.getMessage());
lbl.setIcon(problem.severity().icon());
lbl.setForeground(problem.severity().color());
lbl.getAccessibleContext().setAccessibleName(
problem.severity().toString());
lbl.getAccessibleContext().setAccessibleDescription(
problem.severity().describeError(problem.getMessage()));
}
}
}
public void clearProblem() {
showProblem(null);
}
}
}
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