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annotate flys-artifacts/src/main/java/de/intevation/flys/jfree/StickyAxisAnnotation.java @ 2163:105097966111

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Theoretically allow annotations on second y ais. Practically allow Q MainValues on Q Axis in Duration Curves. flys-artifacts/trunk@3750 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Mon, 23 Jan 2012 14:18:53 +0000
parents c68f4f227c09
children 7dc4681a2bed
rev   line source
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1 package de.intevation.flys.jfree;
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2
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3 import org.apache.log4j.Logger;
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4
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5
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6 /**
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7 * Custom Annotations class that is drawn only if no collisions with other
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8 * already drawn CustomAnnotations in current plot are found. A mark on
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9 * the axis is shown in all cases, though.
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10 * Draws a given text and a line to it from either axis.
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11 */
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12 public class StickyAxisAnnotation {
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13
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14 /** Logger for this class. */
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15 private static Logger logger =
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16 Logger.getLogger(StickyAxisAnnotation.class);
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17
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18 /** Simplified view on axes. */
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19 public static enum SimpleAxis {
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20 X_AXIS, /** Usually "horizontal". */
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21 Y_AXIS /** Usually "vertical". */
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22 }
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23
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24 /** The "symbolic" integer representing which axis to stick to. */
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25 protected int axisSymbol;
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26
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27 /** Which axis to stick to. */
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28 protected SimpleAxis stickyAxis = SimpleAxis.X_AXIS;
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29
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30 /** The 1-dimensional position of this annotation. */
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31 protected float pos;
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32
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33 String text;
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34
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35 /**
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36 * Constructor with implicit sticky x-axis.
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37 * @param text the text to display.
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38 * @param pos the position at which to draw the text and mark.
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39 */
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40 public StickyAxisAnnotation(String text, float pos) {
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41 this(text, pos, SimpleAxis.X_AXIS);
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42 }
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43
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44
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45 /**
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46 * Constructor with given explicit axis.
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47 * @param text the text to display.
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48 * @param pos the position at which to draw the text and mark.
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49 * @param stickyAxis the axis at which to stick (and to which 'pos' is
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50 * relative).
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51 * @param lineTo upto where to draw a line (NaN for none).
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52 */
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53 public StickyAxisAnnotation(String text, float pos, SimpleAxis stickAxis
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54 ) {
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55 this(text, pos, stickAxis, 0);
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56 }
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57
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58 public StickyAxisAnnotation(String text, float pos, SimpleAxis stickAxis,
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59 int axisSymbol
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60 ) {
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61 setStickyAxis(stickAxis);
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62 this.text = text;
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63 this.pos = pos;
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64 this.axisSymbol = axisSymbol;
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65 }
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66
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67
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68 /**
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69 * Sets the "sticky axis" (whether to draw annotations at the
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70 * X- or the Y-Axis.
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71 *
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72 * @param stickyAxis axis to stick to.
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73 */
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74 public void setStickyAxis(SimpleAxis stickyAxis) {
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75 this.stickyAxis = stickyAxis;
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76 }
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77
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78
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79 public float getPos() {
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80 return this.pos;
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81 }
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82
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83 public SimpleAxis getStickyAxis() {
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84 return this.stickyAxis;
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85 }
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86
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87 public boolean atX() {
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88 return this.getStickyAxis() == SimpleAxis.X_AXIS;
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89 }
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90
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91 public String getText() {
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92 return this.text;
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93 }
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94
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95 public int getAxisSymbol() {
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96 return this.axisSymbol;
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97 }
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98 }
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99 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org