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
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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.visual.anchor;
042:
043: import org.netbeans.api.visual.anchor.Anchor;
044: import org.netbeans.api.visual.widget.ConnectionWidget;
045: import org.netbeans.api.visual.widget.Widget;
046:
047: import java.awt.*;
048: import java.util.List;
049:
050: /**
051: * @author Alex
052: */
053: public final class FreeRectangularAnchor extends Anchor {
054:
055: private boolean includeBorders;
056:
057: public FreeRectangularAnchor(Widget widget, boolean includeBorders) {
058: super (widget);
059: this .includeBorders = includeBorders;
060: }
061:
062: public Result compute(Entry entry) {
063: ConnectionWidget fcw = entry.getAttachedConnectionWidget();
064: assert fcw != null;
065: Point relatedLocation = getRelatedSceneLocation();
066: Widget widget = getRelatedWidget();
067: List<Point> fcwControlPoints = fcw.getControlPoints();
068:
069: Point oppositeLocation;
070: if (fcwControlPoints.size() < 2)
071: oppositeLocation = getOppositeSceneLocation(entry);
072: else if (entry.isAttachedToConnectionSource())
073: oppositeLocation = fcwControlPoints.get(1);
074: else
075: oppositeLocation = fcwControlPoints.get(fcwControlPoints
076: .size() - 2);
077:
078: Rectangle bounds = widget.getBounds();
079: if (!includeBorders) {
080: Insets insets = widget.getBorder().getInsets();
081: bounds.x += insets.left;
082: bounds.y += insets.top;
083: bounds.width -= insets.left + insets.right;
084: bounds.height -= insets.top + insets.bottom;
085: }
086: bounds = widget.convertLocalToScene(bounds);
087:
088: if (bounds.isEmpty()
089: || relatedLocation.equals(oppositeLocation))
090: return new Anchor.Result(relatedLocation,
091: Anchor.DIRECTION_ANY);
092:
093: float dx = oppositeLocation.x - relatedLocation.x;
094: float dy = oppositeLocation.y - relatedLocation.y;
095:
096: float ddx = Math.abs(dx) / (float) bounds.width;
097: float ddy = Math.abs(dy) / (float) bounds.height;
098:
099: Anchor.Direction direction;
100:
101: if (ddx >= ddy) {
102: direction = dx >= 0.0f ? Direction.RIGHT : Direction.LEFT;
103: } else {
104: direction = dy >= 0.0f ? Direction.BOTTOM : Direction.TOP;
105: }
106:
107: float scale = 0.5f / Math.max(ddx, ddy);
108:
109: Point point = new Point(Math.round(relatedLocation.x + scale
110: * dx), Math.round(relatedLocation.y + scale * dy));
111: return new Anchor.Result(point, direction);
112: }
113:
114: }
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