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annotate org.eclipse.draw2d/src/org/eclipse/draw2d/graph/Obstacle.d @ 17:6f068362a363

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Remove direct import of tango.text.convert.Format
author Frank Benoit <benoit@tionex.de>
date Wed, 18 Mar 2009 09:09:23 +0100
parents bc29606a740c
children
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1 /*******************************************************************************
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2 * Copyright (c) 2004, 2005 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.draw2d.graph.Obstacle;
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14
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15 import java.lang.all;
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16
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17 import org.eclipse.draw2d.PositionConstants;
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18 import org.eclipse.draw2d.geometry.Point;
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19 import org.eclipse.draw2d.geometry.Rectangle;
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20 import org.eclipse.draw2d.graph.Vertex;
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21 import org.eclipse.draw2d.graph.ShortestPathRouter;
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22
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23 /**
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24 * An obstacle representation for the ShortestPathRouting. This is a subclass of Rectangle.
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25 *
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26 * This class is for internal use only.
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27 * @author Whitney Sorenson
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28 * @since 3.0
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29 */
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30 class Obstacle
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31 : Rectangle
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32 {
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33
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34 bool exclude;
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35 Vertex topLeft, topRight, bottomLeft, bottomRight, center;
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36 private ShortestPathRouter router;
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37
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38 /**
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39 * Creates a new obstacle from the given rectangle bounds.
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40 * @param rect the bounds
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41 */
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42 this(Rectangle rect, ShortestPathRouter router) {
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43 init(rect);
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44 this.router = router;
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45 }
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46
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47 /**
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48 * Returns <code>true</code> if the given point is contained but not on the boundary of
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49 * this obstacle.
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50 * @param p a point
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51 * @return <code>true</code> if properly contained
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52 */
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53 public bool containsProper(Point p) {
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54 return p.x > this.x
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55 && p.x < this.x + this.width - 1
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56 && p.y > this.y
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57 && p.y < this.y + this.height - 1;
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58 }
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59
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60 public int getSpacing() {
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61 return router.getSpacing();
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62 }
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63
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64 private void growVertex(Vertex vertex) {
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65 if (vertex.totalCount > 0)
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66 vertex.grow();
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67 }
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68
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69 /**
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70 * Grows all vertices on this obstacle.
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71 */
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72 void growVertices() {
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73 growVertex(topLeft);
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74 growVertex(topRight);
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75 growVertex(bottomLeft);
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76 growVertex(bottomRight);
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77 }
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78
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79 /**
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80 * Initializes this obstacle to the values of the given rectangle
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81 *
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82 * @param rect bounds of this obstacle
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83 */
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84 void init(Rectangle rect) {
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85 this.x = rect.x;
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86 this.y = rect.y;
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87 this.width = rect.width;
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88 this.height = rect.height;
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89
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90 exclude = false;
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91
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92 topLeft = new Vertex(x, y, this);
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93 topLeft.positionOnObstacle = PositionConstants.NORTH_WEST;
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94 topRight = new Vertex(x + width - 1, y, this);
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95 topRight.positionOnObstacle = PositionConstants.NORTH_EAST;
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96 bottomLeft = new Vertex(x, y + height - 1, this);
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97 bottomLeft.positionOnObstacle = PositionConstants.SOUTH_WEST;
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98 bottomRight = new Vertex(x + width - 1, y + height - 1, this);
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99 bottomRight.positionOnObstacle = PositionConstants.SOUTH_EAST;
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100 center = new Vertex(getCenter(), this);
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101 }
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102
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103 /**
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104 * Requests a full reset on all four vertices of this obstacle.
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105 */
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106 void reset() {
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107 topLeft.fullReset();
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108 bottomLeft.fullReset();
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109 bottomRight.fullReset();
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110 topRight.fullReset();
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111 }
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112
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113 private void shrinkVertex(Vertex vertex) {
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114 if (vertex.totalCount > 0)
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115 vertex.shrink();
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116 }
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117
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118 /**
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119 * Shrinks all four vertices of this obstacle.
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120 */
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121 void shrinkVertices() {
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122 shrinkVertex(topLeft);
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123 shrinkVertex(topRight);
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124 shrinkVertex(bottomLeft);
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125 shrinkVertex(bottomRight);
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126 }
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127
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128 /**
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129 * @see org.eclipse.draw2d.geometry.Rectangle#toString()
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130 */
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131 public String toString() {
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132 return Format("Obstacle({}, {}, {}, {})", x, y, //$NON-NLS-3$//$NON-NLS-2$//$NON-NLS-1$
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133 width, height );//$NON-NLS-2$//$NON-NLS-1$
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134 }
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135
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136 }