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| com.bonevich.eclipse.cvsgrapher.editors.CvsGraphEditPart |
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| 1 | /* ==================================================================== |
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| 2 | * The Apache Software License, Version 1.1 |
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| 3 | * |
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| 4 | * Copyright (c) 2000 The Apache Software Foundation. All rights |
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| 5 | * reserved. |
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| 6 | * |
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| 7 | * Redistribution and use in source and binary forms, with or without |
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| 8 | * modification, are permitted provided that the following conditions |
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| 9 | * are met: |
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| 10 | * |
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| 11 | * 1. Redistributions of source code must retain the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer. |
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| 13 | * |
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| 14 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 15 | * notice, this list of conditions and the following disclaimer in |
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| 16 | * the documentation and/or other materials provided with the |
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| 17 | * distribution. |
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| 18 | * |
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| 19 | * 3. The end-user documentation included with the redistribution, |
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| 20 | * if any, must include the following acknowledgment: |
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| 21 | * "This product includes software developed by the |
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| 22 | * Apache Software Foundation (http://www.apache.org/)." |
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| 23 | * Alternately, this acknowledgment may appear in the software itself, |
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| 24 | * if and wherever such third-party acknowledgments normally appear. |
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| 25 | * |
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| 26 | * 4. The names "Apache" and "Apache Software Foundation" must |
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| 27 | * not be used to endorse or promote products derived from this |
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| 28 | * software without prior written permission. For written |
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| 29 | * permission, please contact apache@apache.org. |
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| 30 | * |
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| 31 | * 5. Products derived from this software may not be called "Apache", |
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| 32 | * nor may "Apache" appear in their name, without prior written |
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| 33 | * permission of the Apache Software Foundation. |
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| 34 | * |
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| 35 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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| 36 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 37 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| 38 | * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
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| 39 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 40 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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| 41 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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| 42 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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| 43 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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| 44 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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| 45 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 46 | * SUCH DAMAGE. |
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| 47 | * ==================================================================== |
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| 48 | * |
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| 49 | * This software consists of voluntary contributions made by many |
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| 50 | * individuals on behalf of the Apache Software Foundation. For more |
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| 51 | * information on the Apache Software Foundation, please see |
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| 52 | * <http://www.apache.org/>. |
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| 53 | * |
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| 54 | * Portions of this software are based upon public domain software |
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| 55 | * originally written at the National Center for Supercomputing Applications, |
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| 56 | * University of Illinois, Urbana-Champaign. |
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| 57 | */ |
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| 58 | package com.bonevich.eclipse.cvsgrapher.editors; |
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| 59 | ||
| 60 | import com.bonevich.eclipse.cvsgrapher.model.*; |
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| 61 | ||
| 62 | import org.eclipse.draw2d.*; |
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| 63 | import org.eclipse.draw2d.geometry.Dimension; |
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| 64 | import org.eclipse.draw2d.geometry.Rectangle; |
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| 65 | import org.eclipse.gef.*; |
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| 66 | import org.eclipse.gef.editparts.AbstractGraphicalEditPart; |
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| 67 | import org.eclipse.gef.tools.MarqueeDragTracker; |
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| 68 | ||
| 69 | import java.util.List; |
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| 70 | ||
| 71 | /** |
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| 72 | * The "root" edit part that builds a view to contain CvsGraphNodeEditParts. |
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| 73 | */ |
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| 74 | 0 | public final class CvsGraphEditPart extends AbstractGraphicalEditPart |
| 75 | { |
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| 76 | 0 | private static DragTracker _dragTracker = null; |
| 77 | ||
| 78 | /** |
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| 79 | * @see org.eclipse.gef.editparts.AbstractGraphicalEditPart#createFigure() |
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| 80 | */ |
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| 81 | protected IFigure createFigure() |
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| 82 | { |
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| 83 | 0 | Figure f = new FreeformLayer(); |
| 84 | 0 | f.setLayoutManager(new CvsGraphLayout(this)); |
| 85 | ||
| 86 | // Don't know why, but if you don't setOpaque(true), you cannot move by drag&drop! |
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| 87 | 0 | f.setOpaque(true); |
| 88 | 0 | return f; |
| 89 | } |
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| 90 | ||
| 91 | /** |
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| 92 | * @see org.eclipse.gef.editparts.AbstractEditPart#createEditPolicies() |
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| 93 | */ |
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| 94 | protected void createEditPolicies() |
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| 95 | { |
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| 96 | 0 | installEditPolicy(EditPolicy.LAYOUT_ROLE, new CvsGraphXYLayoutEditPolicy()); |
| 97 | 0 | } |
| 98 | ||
| 99 | /** |
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| 100 | * @see org.eclipse.gef.editparts.AbstractEditPart#getModelChildren() |
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| 101 | */ |
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| 102 | protected List getModelChildren() |
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| 103 | { |
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| 104 | 0 | return ((CvsGraphModel) getModel()).getNodes(); |
| 105 | } |
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| 106 | ||
| 107 | /** |
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| 108 | * This method is not mandatory to implement, but if you do not implement |
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| 109 | * it, you will not have the ability to rectangle-selects several figures... |
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| 110 | */ |
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| 111 | public DragTracker getDragTracker(Request req) |
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| 112 | { |
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| 113 | // Unlike in Logical Diagram Editor example, I use a singleton because this |
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| 114 | // method is called several time, so I prefer to save memory ; and it works! |
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| 115 | 0 | if (_dragTracker == null) |
| 116 | { |
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| 117 | 0 | _dragTracker = new MarqueeDragTracker(); |
| 118 | } |
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| 119 | 0 | return _dragTracker; |
| 120 | } |
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| 121 | ||
| 122 | /** |
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| 123 | * Allow all child node views to expand to their preferred sizing. |
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| 124 | * @see org.eclipse.gef.GraphicalEditPart#setLayoutConstraint(org.eclipse.gef.EditPart, org.eclipse.draw2d.IFigure, java.lang.Object) |
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| 125 | */ |
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| 126 | public void setLayoutConstraint(EditPart child, IFigure node, Object constraint) |
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| 127 | { |
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| 128 | 0 | Rectangle rect = (Rectangle) constraint; |
| 129 | 0 | Rectangle newConstraint = new Rectangle(rect.getLocation(), class="keyword">new Dimension(-1,-1)); |
| 130 | 0 | super.setLayoutConstraint(child, node, newConstraint); |
| 131 | 0 | } |
| 132 | ||
| 133 | } |
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