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
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
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030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
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035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041: package org.netbeans.modules.visualweb.css2;
042:
043: import org.netbeans.modules.visualweb.designer.CssUtilities;
044: import java.awt.Color;
045: import java.awt.FontMetrics;
046: import java.awt.Graphics;
047: import org.openide.ErrorManager;
048:
049: import org.w3c.dom.Element;
050: import org.netbeans.modules.visualweb.designer.WebForm;
051: import org.netbeans.modules.visualweb.designer.html.HtmlTag;
052:
053: /**
054: * A LineBreakBox represents a <br/> in a LineBox.
055: * <p>
056: * @todo I'm inheriting a lot of crap from CssBox -- margins, padding,
057: * etc. Is there a way I could make an even more primitive box than
058: * CssBox for this?
059:
060: * @author Tor Norbye
061: */
062: public class LineBreakBox extends CssBox {
063: private FontMetrics metrics;
064:
065: /*
066: public boolean isPlaceHolder() {
067: return true;
068: }
069: */
070:
071: /**
072: * Create a LineBreakBox representing a <br/>.
073: * @param metrics The font metrics (& font, via metrics.getFont()) to
074: * use to render this text.
075: */
076: public LineBreakBox(WebForm webform, Element element, HtmlTag tag) {
077: super (webform, element, BoxType.LINEBREAK, true, true);
078: this .contentWidth = this .width = 0;
079: this .contentHeight = this .height = getMetrics().getHeight();
080: this .tag = tag;
081: }
082:
083: protected void initialize() {
084: }
085:
086: protected void initializeInvariants() {
087: Element element = getElement();
088: // Help users find errors: <br> elements cannot contain content!
089: if ((tag == HtmlTag.BR)
090: && (element.getChildNodes().getLength() > 0)) {
091: //// org.netbeans.modules.visualweb.insync.markup.MarkupUnit unit = webform.getMarkup();
092: // Element e = MarkupService.getCorrespondingSourceElement(element);
093: //// MarkupService.displayError(unit.getFileObject(), unit.computeLine(e),
094: //// NbBundle.getMessage(LineBreakBox.class, "BrNoChildren"));
095: // Document doc = e.getOwnerDocument();
096: // FileObject fo = InSyncService.getProvider().getFileObject(doc);
097: // int line = InSyncService.getProvider().computeLine(doc, e);
098: // InSyncService.getProvider().getRaveErrorHandler().displayErrorForFileObject(NbBundle.getMessage(LineBreakBox.class, "BrNoChildren"), fo, line, 0);
099: // XXX This validation should be done in parser, not here!
100: ErrorManager.getDefault().notify(
101: ErrorManager.INFORMATIONAL,
102: new IllegalStateException(
103: "Element <br> may not contain children, children="
104: + element.getChildNodes())); // NOI18N
105: }
106: }
107:
108: protected void initializeHorizontalWidths(FormatContext context) {
109: }
110:
111: // public String toString() {
112: // return "LineBreakBox[" + paramString() + "]"; // NOI18N
113: // }
114:
115: protected String paramString() {
116: return super .paramString() + ", " + "font ascent="
117: + metrics.getAscent() + ", descent="
118: + metrics.getDescent() + ", height="
119: + metrics.getHeight() + ", " + "font="
120: + metrics.getFont();
121: }
122:
123: public void paint(Graphics g, int px, int py) {
124: if (CssBox.paintSpaces) {
125: g.setColor(Color.RED);
126: g.drawRect(getAbsoluteX(), getAbsoluteY(), width, height);
127:
128: int zx = getAbsoluteX() + 3;
129: int zy = getAbsoluteY() + (height / 2) + 3;
130: g.drawLine(zx, zy, zx + 5, zy);
131: g.drawLine(zx + 5, zy, zx + 5, zy - 5);
132: }
133: }
134:
135: public FontMetrics getMetrics() {
136: if (metrics == null) {
137: // metrics = CssLookup.getFontMetrics(getElement());
138: // metrics = CssProvider.getValueService().getFontMetricsForElement(getElement());
139: // XXX Missing text.
140: metrics = CssUtilities.getDesignerFontMetricsForElement(
141: getElement(), null, webform.getDefaultFontSize());
142: }
143:
144: return metrics;
145: }
146:
147: public int getIntrinsicWidth() {
148: return width;
149: }
150:
151: public int getIntrinsicHeight() {
152: return height;
153: }
154: }
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