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
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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
034: * single choice of license, a recipient has the option to distribute
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
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040: */
041: package org.netbeans.modules.visualweb.css2;
042:
043: import java.awt.FontMetrics;
044: import java.util.ArrayList;
045: import java.util.List;
046:
047: import org.netbeans.modules.visualweb.designer.WebForm;
048:
049: /**
050: * Context used during when creating the box hierarchy.
051: * Contains information that cannot simply be passed to the
052: * children since the children may unpredictably side-effect
053: * it.
054: * @todo Move linebox management (addToLineBox, finishLineBox)
055: * into this method?
056: * @author Tor Norbye
057: */
058: public class CreateContext {
059: /** Current linebox being constructed; made be null */
060: public LineBoxGroup lineBox;
061: public FontMetrics metrics; // carries the font too -- metrics.getFont()
062: public BoxList fixedBoxes;
063: public ContainerBox prevChangedBox; // used during updates when we modify boxes around target
064: public ContainerBox nextChangedBox;
065: // private ArrayList visitedForms;
066: private List<WebForm> visitedForms;
067:
068: /** Construct a box-creation context for the given webform. */
069: public CreateContext() {
070: // There will almost never be many page fragments in a page so don't need
071: // to use heavy datastructures here -- just a simple list will do
072: visitedForms = new ArrayList<WebForm>(4);
073: }
074:
075: /** Construct a nested box-creation context */
076: public CreateContext(CreateContext outer) {
077: visitedForms = outer.visitedForms;
078: }
079:
080: public String toString() {
081: return super .toString() + "[doc=" + visitedForms.toString()
082: + ", " + "lineBox=" + lineBox + "]";
083: }
084:
085: /** Add a fixed box to the list of fixed boxes in this view hierarchy */
086: public void addFixedBox(CssBox box) {
087: if (fixedBoxes == null) {
088: fixedBoxes = new BoxList(3); // usually very few of these
089: fixedBoxes.setKeepSorted(true);
090: }
091:
092: fixedBoxes.add(box, null, null);
093: }
094:
095: public BoxList getFixedBoxes() {
096: return fixedBoxes;
097: }
098:
099: /** Return true iff we've already visited the given webform in this box creation phase */
100: public boolean isVisitedForm(WebForm webform) {
101: if (visitedForms == null) {
102: return false;
103: }
104:
105: return visitedForms.contains(webform);
106: }
107:
108: /** Add a page to be traversed during box creation */
109: public void pushPage(WebForm webform) {
110: visitedForms.add(webform);
111: }
112:
113: /** Pop a page from the page visit stack */
114: public WebForm popPage() {
115: return visitedForms.remove(visitedForms.size() - 1);
116: }
117: }
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