Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/jfree/CollisionFreeXYTextAnnotation.java @ 2157:c4ceade9d50e

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Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation). flys-artifacts/trunk@3742 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Fri, 20 Jan 2012 13:20:37 +0000
parents
children c68f4f227c09
rev   line source
2157
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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diff changeset
1 package de.intevation.flys.jfree;
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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2
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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3 import org.apache.log4j.Logger;
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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4
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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5 import java.util.Iterator;
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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6
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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7 import java.awt.Shape;
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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8 import java.awt.geom.Rectangle2D;
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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9 import java.awt.Color;
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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10 import java.awt.Font;
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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11 import java.awt.BasicStroke;
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12
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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13 import org.jfree.chart.annotations.XYTextAnnotation;
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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14 import org.jfree.chart.axis.ValueAxis;
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15 import org.jfree.chart.plot.PlotOrientation;
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16 import org.jfree.chart.plot.XYPlot;
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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17 import org.jfree.chart.entity.XYAnnotationEntity;
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18 import org.jfree.chart.plot.PlotRenderingInfo;
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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19 import org.jfree.chart.plot.Plot;
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20
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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21 import org.jfree.text.TextUtilities;
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22
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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23 import org.jfree.ui.RectangleEdge;
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24
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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25 import de.intevation.flys.utils.ThemeAccess;
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26
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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27 /**
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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28 * Custom Annotations class that is drawn only if no collisions with other
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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29 * already drawn CustomAnnotations in current plot are found.
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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30 */
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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31 public class CollisionFreeXYTextAnnotation extends XYTextAnnotation {
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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32
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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33 /** Logger for this class. */
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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34 private static Logger logger =
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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35 Logger.getLogger(CollisionFreeXYTextAnnotation.class);
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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36
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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37 public CollisionFreeXYTextAnnotation(String text, float x, double y) {
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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38 super(text, x, y);
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39 }
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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40
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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41
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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42 /**
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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43 * Draw the Annotation only if it does not collide with other
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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44 * already drawn Annotations- texts.
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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45 *
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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46 * @param g2 the graphics device.
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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47 * @param plot the plot.
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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48 * @param dataArea the data area.
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49 * @param domainAxis the domain axis.
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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50 * @param rangeAxis the range axis.
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51 * @param rendererIndex the render index.
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52 * @param info state information, escpecially collects info about
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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53 * already drawn shapes (and thus annotations), used
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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54 * for collision detection.
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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55 */
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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56 @Override
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57 public void draw(
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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58 java.awt.Graphics2D g2,
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59 XYPlot plot,
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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60 java.awt.geom.Rectangle2D dataArea,
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61 ValueAxis domainAxis,
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62 ValueAxis rangeAxis,
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63 int rendererIndex,
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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64 PlotRenderingInfo info
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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65 ) {
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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66 // From superclass, adjusted access only.
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67 PlotOrientation orientation = plot.getOrientation();
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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68 RectangleEdge domainEdge = Plot.resolveDomainAxisLocation(
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69 plot.getDomainAxisLocation(), orientation);
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70 RectangleEdge rangeEdge = Plot.resolveRangeAxisLocation(
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71 plot.getRangeAxisLocation(), orientation);
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72
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73 float anchorX = (float) domainAxis.valueToJava2D(
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74 this.getX(), dataArea, domainEdge);
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75 float anchorY = (float) rangeAxis.valueToJava2D(
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76 this.getY(), dataArea, rangeEdge);
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77
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78 if (orientation == PlotOrientation.HORIZONTAL) {
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79 float tempAnchor = anchorX;
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80 anchorX = anchorY;
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81 anchorY = tempAnchor;
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82 }
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83
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84 g2.setFont(getFont());
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85 Shape hotspot = TextUtilities.calculateRotatedStringBounds(
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86 getText(), g2, anchorX, anchorY, getTextAnchor(),
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87 getRotationAngle(), getRotationAnchor());
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88
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89 // Deviation from superclass: prevent collision.
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90 Rectangle2D hotspotBox = hotspot.getBounds2D();
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91 for (Iterator i = info.getOwner().getEntityCollection().iterator();
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92 i.hasNext(); ) {
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93 Object next = i.next();
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94 // Collision with other stuff than XYAnnotations are okay.
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95 if (next instanceof XYAnnotationEntity) {
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96 XYAnnotationEntity drawnShape = (XYAnnotationEntity) next;
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97 if (drawnShape.getArea().intersects(hotspotBox)) {
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98 // Found collision, early stop.
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99 return;
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100 }
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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101 }
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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102 }
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103
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104 if (this.getBackgroundPaint() != null) {
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105 g2.setPaint(this.getBackgroundPaint());
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106 g2.fill(hotspot);
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107 }
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108 g2.setPaint(getPaint());
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109 TextUtilities.drawRotatedString(getText(), g2, anchorX, anchorY,
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110 getTextAnchor(), getRotationAngle(), getRotationAnchor());
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111 if (this.isOutlineVisible()) {
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112 g2.setStroke(this.getOutlineStroke());
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113 g2.setPaint(this.getOutlinePaint());
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114 g2.draw(hotspot);
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115 }
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116
c4ceade9d50e Added new Annotation class that prevents collisions (to replace StickyAxisAnnotation).
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117 String toolTip = getToolTipText();
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118 String url = getURL();
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119 if (toolTip != null || url != null) {
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120 addEntity(info, hotspot, rendererIndex, toolTip, url);
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121 }
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122 else {
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123 addEntity(info, hotspot, rendererIndex,
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124 "CollisionFreeXYTextAnnotation",
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125 "CollisionFreeXYTextAnnotation");
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126 }
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127 }
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128
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129
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130 /*
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131 public void applyTheme(ThemeAccess ta) {
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132 lineWidth = ta.parseLineWidth();
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133 lineColor = ta.parseLineColorField();
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134 textColor = ta.parseTextColor();
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135 font = ta.parseTextFont();
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136 textOrientation = ta.parseTextOrientation();
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137 textBackground = ta.parseTextBackground();
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138 showBackground = ta.parseShowTextBackground();
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139 }
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140 */
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141 }
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142 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org