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annotate flys-artifacts/src/main/java/de/intevation/flys/java2d/ShapeUtils.java @ 4221:480de0dbca8e

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Extended location input helper. The locationpicker has now an attribute whether the input is distance or location to display one or two clickable columns. Replaced the record click handler with cell click handler.
author Raimund Renkert <rrenkert@intevation.de>
date Tue, 23 Oct 2012 13:17:20 +0200
parents 0d8146989012
children
rev   line source
3162
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1 package de.intevation.flys.java2d;
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2
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3 import java.awt.Shape;
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4
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5 import java.awt.geom.AffineTransform;
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6 import java.awt.geom.Ellipse2D;
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7 import java.awt.geom.GeneralPath;
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8 import java.awt.geom.Rectangle2D;
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9
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10 import java.util.HashMap;
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11 import java.util.Map;
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12
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13 public class ShapeUtils
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14 {
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15 // TODO: Use enum
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16 public static final int MEASURED = 0;
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17 public static final int DIGITIZED = 1;
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18 public static final int INTERPOLATED = 2;
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19
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20 public static final boolean DIGITIZED_FILL = false;
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21 public static final boolean MEASURED_FILL = true;
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22 public static final boolean INTERPOLATED_FILL = false;
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23
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24 public static final Shape DIGITIZED_SHAPE =
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25 createCross(4f);
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26
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27 public static final Shape MEASURED_SHAPE =
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28 new Rectangle2D.Double(-2, -2, 4, 4);
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29
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30 public static final Shape INTERPOLATED_SHAPE =
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31 new Ellipse2D.Double(-2, -2, 4, 4);
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32
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33 protected static Map<Long, Shape> scaledShapesCache =
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34 new HashMap<Long, Shape>();
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35
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36 public static final Shape createCross(float size) {
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37 float half = size * 0.5f;
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38 GeneralPath p = new GeneralPath();
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39 p.moveTo(-half, -half);
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40 p.lineTo(half, half);
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41 p.closePath();
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42 p.moveTo(-half, half);
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43 p.lineTo(half, -half);
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44 p.closePath();
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45 return p;
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46 }
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47
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48 public static Shape scale(Shape shape, float factor) {
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49 if (factor == 1f) {
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50 return shape;
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51 }
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52 AffineTransform xform =
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53 AffineTransform.getScaleInstance(factor, factor);
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54
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55 GeneralPath gp = new GeneralPath(shape);
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56 return gp.createTransformedShape(xform);
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57 }
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58
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59 public static synchronized Shape getScaledShape(int type, float size) {
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60
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61 Long hash = Long.valueOf(
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62 (((long)type) << 32) | Float.floatToIntBits(size));
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63
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64 Shape shape = scaledShapesCache.get(hash);
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65
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66 if (shape == null) {
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67 switch (type) {
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68 case MEASURED:
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69 shape = MEASURED_SHAPE;
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70 break;
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71 case DIGITIZED:
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72 shape = DIGITIZED_SHAPE;
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73 break;
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74 default:
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75 shape = INTERPOLATED_SHAPE;
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76 }
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77 scaledShapesCache.put(hash, shape = scale(shape, size));
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78 }
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79
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80 return shape;
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81 }
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82 }
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83 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org