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.
029: *
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
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:
042: package org.netbeans.modules.compapp.casaeditor.graph.layout;
043:
044: import java.awt.Point;
045: import java.awt.Rectangle;
046: import java.util.ArrayList;
047: import java.util.Collections;
048: import java.util.HashMap;
049: import java.util.List;
050: import java.util.Map;
051: import org.netbeans.api.visual.widget.Widget;
052: import org.netbeans.modules.compapp.casaeditor.design.CasaModelGraphScene;
053: import org.netbeans.modules.compapp.casaeditor.graph.*;
054:
055: /**
056: * @author Josh Sandusky
057: */
058: public final class LayoutEngines extends CustomizablePersistLayout {
059:
060: private static final int SPACING_FROM_REGION_EDGES = 40;
061:
062: public LayoutEngines() {
063: setYSpacing(60);
064: }
065:
066: public void layout(Widget widget) {
067:
068: if (widget == null) {
069: return;
070: }
071: CasaModelGraphScene scene = (CasaModelGraphScene) widget
072: .getScene();
073:
074: // First determine the relative Y ordering.
075: int maxWidth = 0;
076: List<CasaNodeWidget> orderedNodeList = new ArrayList<CasaNodeWidget>();
077: for (Widget child : widget.getChildren()) {
078: if (child instanceof CasaNodeWidget) {
079: orderedNodeList.add((CasaNodeWidget) child);
080: if (maxWidth < child.getBounds().width) {
081: maxWidth = child.getBounds().width;
082: }
083: }
084: }
085: Collections.sort(orderedNodeList, new YOrderComparator(scene));
086:
087: /* Update region width to accomade the new widget */
088: int parentWidth = (int) widget.getBounds().getWidth();
089: maxWidth = maxWidth + 2 * SPACING_FROM_REGION_EDGES + 20;
090: if (parentWidth < maxWidth) {
091: Rectangle bounds = widget.getBounds();
092: bounds.width = maxWidth;
093: widget.setPreferredBounds(bounds);
094: parentWidth = (int) widget.getBounds().getWidth();
095: }
096:
097: CenteredFlowLayout layout = new CenteredFlowLayout(parentWidth,
098: SPACING_FROM_REGION_EDGES, getYSpacing());
099: for (CasaNodeWidget child : orderedNodeList) {
100: layout.add(child);
101: }
102: Map<CasaNodeWidget, Rectangle> widgetMap = new HashMap<CasaNodeWidget, Rectangle>();
103: layout.positionWidgets(
104:
105: ((CasaRegionWidget) widget).getTitleYOffset() + getYSpacing(),
106: widgetMap, isAdjustingForOverlapOnly()
107: && scene.isModelPositionsFinalized());
108: for (CasaNodeWidget iterWidget : widgetMap.keySet()) {
109: moveWidget(iterWidget, widgetMap.get(iterWidget)
110: .getLocation(), false);
111: }
112:
113: widget.getScene().validate();
114: }
115: }
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