001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU General
007: * Public License Version 2 only ("GPL") or the Common Development and Distribution
008: * License("CDDL") (collectively, the "License"). You may not use this file except in
009: * compliance with the License. You can obtain a copy of the License at
010: * http://www.netbeans.org/cddl-gplv2.html or nbbuild/licenses/CDDL-GPL-2-CP. See the
011: * License for the specific language governing permissions and limitations under the
012: * License. When distributing the software, include this License Header Notice in
013: * each file and include the License file at nbbuild/licenses/CDDL-GPL-2-CP. Sun
014: * designates this particular file as subject to the "Classpath" exception as
015: * provided by Sun in the GPL Version 2 section of the License file that
016: * accompanied this code. If applicable, add the following below the License Header,
017: * with the fields enclosed by brackets [] replaced by your own identifying
018: * information: "Portions Copyrighted [year] [name of copyright owner]"
019: *
020: * Contributor(s):
021: *
022: * The Original Software is NetBeans. The Initial Developer of the Original Software
023: * is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun Microsystems, Inc. All
024: * Rights Reserved.
025: *
026: * If you wish your version of this file to be governed by only the CDDL or only the
027: * GPL Version 2, indicate your decision by adding "[Contributor] elects to include
028: * this software in this distribution under the [CDDL or GPL Version 2] license." If
029: * you do not indicate a single choice of license, a recipient has the option to
030: * distribute your version of this file under either the CDDL, the GPL Version 2 or
031: * to extend the choice of license to its licensees as provided above. However, if
032: * you add GPL Version 2 code and therefore, elected the GPL Version 2 license, then
033: * the option applies only if the new code is made subject to such option by the
034: * copyright holder.
035: */
036:
037: package org.netbeans.installer.utils.helper.swing;
038:
039: import java.awt.Graphics;
040: import java.awt.Rectangle;
041: import javax.swing.JLabel;
042: import org.netbeans.installer.utils.StringUtils;
043: import org.netbeans.installer.utils.SystemUtils;
044:
045: /**
046: *
047: * @author Kirill Sorokin
048: */
049: public class NbiLabel extends JLabel {
050: /////////////////////////////////////////////////////////////////////////////////
051: // Instance
052: private boolean collapsePaths;
053:
054: private String text;
055:
056: public NbiLabel() {
057: super ();
058:
059: setText(null);
060: collapsePaths = false;
061: }
062:
063: public NbiLabel(final boolean collapsePaths) {
064: this ();
065:
066: this .collapsePaths = collapsePaths;
067: }
068:
069: public void clearText() {
070: setText(null);
071: }
072:
073: @Override
074: public void setText(final String text) {
075: if ((text == null) || text.equals("")) {
076: this .text = DEFAULT_TEXT;
077:
078: super .setText(DEFAULT_TEXT);
079: super .setDisplayedMnemonic(DEFAULT_MNEMONIC);
080: super .setToolTipText(DEFAULT_TOOLTIP_TEXT);
081: } else {
082: this .text = text;
083:
084: super .setText(StringUtils.stripMnemonic(this .text));
085: super .setToolTipText(StringUtils.stripMnemonic(this .text));
086:
087: if (!SystemUtils.isMacOS()) {
088: super .setDisplayedMnemonic(StringUtils
089: .fetchMnemonic(this .text));
090: }
091: }
092: }
093:
094: @Override
095: protected void paintComponent(Graphics graphics) {
096: if (collapsePaths && !text.equals(DEFAULT_TEXT)) {
097: final String string = StringUtils.stripMnemonic(text);
098: final String separator = SystemUtils.getFileSeparator();
099:
100: final int boundsWidth = getBounds().width;
101: final int lastIndex = string.lastIndexOf(separator);
102:
103: int stringWidth = getStringBounds(graphics).width;
104: int index = string.lastIndexOf(separator, lastIndex - 1);
105:
106: // we should continue while there is at least one separator
107: // (lastIndex > -1), there is a previous separator (index > -1) and
108: // the rendered string width exceeds the bounds
109: // (stringWidth > boundsWidth)
110: // note: if there are no separators in the string, it will not be
111: // shortened at all and the default shortening procedure will take
112: // place, also if collapsing a path does not help completely, additional
113: // shortening will be performed by the default procedure
114: while ((lastIndex != -1) && (index != -1)
115: && (stringWidth > boundsWidth)) {
116: final String shortenedString = StringUtils.replace(
117: string, "...", index + 1, lastIndex);
118:
119: super .setText(shortenedString);
120:
121: stringWidth = getStringBounds(graphics).width;
122: index = string.lastIndexOf(separator, index - 1);
123: }
124: }
125:
126: super .paintComponent(graphics);
127: }
128:
129: private Rectangle getStringBounds(Graphics graphics) {
130: return getFontMetrics(getFont()).getStringBounds(
131: super .getText(), graphics).getBounds();
132: }
133:
134: /////////////////////////////////////////////////////////////////////////////////
135: // Constants
136: public static final String DEFAULT_TEXT = " "; // NOI18N
137:
138: public static final String DEFAULT_TOOLTIP_TEXT = null;
139:
140: public static final char DEFAULT_MNEMONIC = '\u0000'; // NOMAGI
141: }
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