Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/exports/AnnotationRenderer.java @ 9555:ef5754ba5573

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Implemented legend aggregation based on type of themes. Added theme-editor style configuration for aggregated legend entries. Only configured themes get aggregated.
author gernotbelger
date Tue, 23 Oct 2018 16:26:48 +0200
parents 1cc7653ca84f
children
rev   line source
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1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by
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3 * Björnsen Beratende Ingenieure GmbH
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4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
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5 *
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6 * This file is Free Software under the GNU AGPL (>=v3)
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7 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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8 * documentation coming with Dive4Elements River for details.
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9 */
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10 package org.dive4elements.river.exports;
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11
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12 import java.awt.BasicStroke;
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13 import java.awt.Color;
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14 import java.util.ArrayList;
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15 import java.util.List;
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16 import java.util.Map;
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17 import java.util.SortedMap;
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18
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19 import org.apache.log4j.Logger;
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20 import org.dive4elements.river.jfree.AxisDataset;
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21 import org.dive4elements.river.jfree.CollisionFreeXYTextAnnotation;
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22 import org.dive4elements.river.jfree.RiverAnnotation;
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23 import org.dive4elements.river.jfree.StickyAxisAnnotation;
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24 import org.dive4elements.river.themes.LineStyle;
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25 import org.dive4elements.river.themes.TextStyle;
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26 import org.dive4elements.river.themes.ThemeDocument;
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27 import org.jfree.chart.LegendItem;
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28 import org.jfree.chart.annotations.XYLineAnnotation;
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29 import org.jfree.chart.annotations.XYTextAnnotation;
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30 import org.jfree.chart.plot.XYPlot;
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31 import org.jfree.chart.renderer.xy.XYItemRenderer;
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32 import org.jfree.ui.TextAnchor;
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33
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34 /**
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35 * @author Gernot Belger
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36 */
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37 public final class AnnotationRenderer {
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38
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39 private static final Logger log = Logger.getLogger(AnnotationRenderer.class);
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40
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41 private static float ANNOTATIONS_AXIS_OFFSET = 0.02f;
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42
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43 private final Map<Integer, AxisDataset> datasets;
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44
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45 public AnnotationRenderer(final Map<Integer, AxisDataset> datasets) {
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46 this.datasets = datasets;
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47 }
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48
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49 /**
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50 * Add annotations (Sticky, Text and hyk zones) to a plot.
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51 *
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52 * @param annotations
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53 * Annotations to add
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54 * @param plot
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55 * XYPlot to add annotations to.
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56 * @param settings
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57 * ChartSettings object for settings.
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58 * @param datasets
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59 * Map of axis index and datasets
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60 */
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61 public final void addAnnotationsToRenderer(final XYPlot plot, final LegendAggregator legendBuilder, final List<RiverAnnotation> annotations) {
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62 if (annotations == null || annotations.isEmpty()) {
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63 log.debug("addAnnotationsToRenderer: no annotations.");
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64 return;
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65 }
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66
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67 // OPTMIMIZE: Pre-calculate positions
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68 final ChartArea area = new ChartArea(plot.getDomainAxis(0), plot.getRangeAxis());
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69
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70 // Walk over all Annotation sets.
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71 for (final RiverAnnotation fa : annotations) {
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72
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73 // Access text styling, if any.
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74 final ThemeDocument theme = fa.getTheme();
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75 TextStyle textStyle = null;
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76 LineStyle lineStyle = null;
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77
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78 // Get Theming information and add legend item.
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79 if (theme != null) {
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80 textStyle = theme.parseComplexTextStyle();
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81 lineStyle = theme.parseComplexLineStyle();
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82 if (fa.getLabel() != null) {
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83 Color color = theme.parseLineColorField();
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84 if (color == null) {
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85 color = Color.BLACK;
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86 }
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87
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88 Color textColor = theme.parseTextColor();
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89 if (textColor == null) {
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90 textColor = Color.BLACK;
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91 }
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92
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93 final LegendItem newItem = new LegendItem(fa.getLabel(), color);
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94
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95 newItem.setLabelPaint(textColor);
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96
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97 // REMARK: connection to facet is lost at this point
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98 final String themeType = null;
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99
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100 legendBuilder.addLegendItem(themeType, newItem);
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101 }
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102 }
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103
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104 // The 'Sticky' Annotations (at axis, with line and text).
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105 for (final StickyAxisAnnotation sta : fa.getAxisTextAnnotations()) {
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106 addStickyAnnotation(sta, plot, area, lineStyle, textStyle, theme, this.datasets.get(new Integer(sta.getAxisSymbol())));
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107 }
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108
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109 // Other Text Annotations (e.g. labels of (manual) points).
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110 for (final XYTextAnnotation ta : fa.getTextAnnotations()) {
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111 // Style the text.
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112 if (textStyle != null) {
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113 textStyle.apply(ta);
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114 }
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115 ta.setY(area.above(0.05d, ta.getY()));
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116 plot.getRenderer().addAnnotation(ta, org.jfree.ui.Layer.FOREGROUND);
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117 }
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118 }
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119 }
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120
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121 /**
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122 * Add a text and a line annotation.
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123 *
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124 * @param area
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125 * convenience to determine positions in plot.
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126 * @param theme
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127 * (optional) theme document
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128 */
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129 private void addStickyAnnotation(final StickyAxisAnnotation annotation, final XYPlot plot, final ChartArea area, final LineStyle lineStyle,
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130 final TextStyle textStyle, final ThemeDocument theme, final AxisDataset dataset) {
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131 // OPTIMIZE pre-calculate area-related values
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132 final float TEXT_OFF = 0.03f;
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133
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134 XYLineAnnotation lineAnnotation = null;
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135 XYTextAnnotation textAnnotation = null;
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136
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137 final int axisIndex = annotation.getAxisSymbol();
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138 XYItemRenderer renderer = null;
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139 if (dataset != null && dataset.getDatasets().length > 0) {
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140 renderer = plot.getRendererForDataset(dataset.getDatasets()[0]);
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141 } else {
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142 renderer = plot.getRenderer();
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143 }
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144
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145 if (annotation.atX()) {
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146 textAnnotation = new CollisionFreeXYTextAnnotation(annotation.getText(), annotation.getPos(), area.ofGround(TEXT_OFF));
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147 // OPTIMIZE externalize the calculation involving PI.
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148 // textAnnotation.setRotationAngle(270f*Math.PI/180f);
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149 lineAnnotation = createGroundStickAnnotation(area, annotation.getPos(), lineStyle);
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150 textAnnotation.setRotationAnchor(TextAnchor.CENTER_LEFT);
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151 textAnnotation.setTextAnchor(TextAnchor.CENTER_LEFT);
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152 } else {
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153 // Stick to the "right" (opposed to left) Y-Axis.
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154 if (axisIndex != 0 && plot.getRangeAxis(axisIndex) != null) {
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155 // OPTIMIZE: Pass a different area to this function,
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156 // do the adding to renderer outside (let this
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157 // function return the annotations).
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158 // Note that this path is travelled rarely.
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159 textAnnotation = new CollisionFreeXYTextAnnotation(annotation.getText(), area.ofRight(TEXT_OFF), annotation.getPos());
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160 textAnnotation.setRotationAnchor(TextAnchor.CENTER_RIGHT);
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161 textAnnotation.setTextAnchor(TextAnchor.CENTER_RIGHT);
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162 lineAnnotation = createRightStickAnnotation(area, annotation.getPos(), lineStyle);
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163
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164 // hit-lines for duration curve
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165 final ChartArea area2 = new ChartArea(plot.getDomainAxis(), plot.getRangeAxis(axisIndex));
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166 if (!Float.isNaN(annotation.getHitPoint()) && theme != null) {
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167 // New line annotation to hit curve.
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168 if (theme.parseShowVerticalLine()) {
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169 final XYLineAnnotation hitLineAnnotation = createStickyLineAnnotation(StickyAxisAnnotation.SimpleAxis.X_AXIS, annotation.getHitPoint(),
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170 annotation.getPos(),
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171 // annotation.getHitPoint(),
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172 area2, lineStyle);
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173 renderer.addAnnotation(hitLineAnnotation, org.jfree.ui.Layer.BACKGROUND);
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174 }
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175 if (theme.parseShowHorizontalLine()) {
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176 final XYLineAnnotation lineBackAnnotation = createStickyLineAnnotation(StickyAxisAnnotation.SimpleAxis.Y_AXIS2, annotation.getPos(),
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177 annotation.getHitPoint(), area2, lineStyle);
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178 renderer.addAnnotation(lineBackAnnotation, org.jfree.ui.Layer.BACKGROUND);
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179 }
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180 }
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181 } else { // Stick to the left y-axis.
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182 textAnnotation = new CollisionFreeXYTextAnnotation(annotation.getText(), area.ofLeft(TEXT_OFF), annotation.getPos());
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183 textAnnotation.setRotationAnchor(TextAnchor.CENTER_LEFT);
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184 textAnnotation.setTextAnchor(TextAnchor.CENTER_LEFT);
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185 lineAnnotation = createLeftStickAnnotation(area, annotation.getPos(), lineStyle);
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186 if (!Float.isNaN(annotation.getHitPoint()) && theme != null) {
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187 // New line annotation to hit curve.
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188 if (theme.parseShowHorizontalLine()) {
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189 final XYLineAnnotation hitLineAnnotation = createStickyLineAnnotation(StickyAxisAnnotation.SimpleAxis.Y_AXIS, annotation.getPos(),
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190 annotation.getHitPoint(), area, lineStyle);
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191 renderer.addAnnotation(hitLineAnnotation, org.jfree.ui.Layer.BACKGROUND);
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192 }
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193 if (theme.parseShowVerticalLine()) {
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194 final XYLineAnnotation lineBackAnnotation = createStickyLineAnnotation(StickyAxisAnnotation.SimpleAxis.X_AXIS, annotation.getHitPoint(),
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195 annotation.getPos(), area, lineStyle);
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196 renderer.addAnnotation(lineBackAnnotation, org.jfree.ui.Layer.BACKGROUND);
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197 }
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198 }
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199 }
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200 }
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201
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202 // Style the text.
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203 if (textStyle != null) {
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204 textStyle.apply(textAnnotation);
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205 }
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206
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207 // Add the Annotations to renderer.
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208 renderer.addAnnotation(textAnnotation, org.jfree.ui.Layer.FOREGROUND);
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209 renderer.addAnnotation(lineAnnotation, org.jfree.ui.Layer.FOREGROUND);
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210 }
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211
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212 public final void addYAnnotationsToRenderer(final XYPlot plot, final LegendAggregator legendBuilder,
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213 final SortedMap<Integer, RiverAnnotation> yAnnotations) {
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214 final List<RiverAnnotation> annotations = new ArrayList<>();
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215
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216 for (final Map.Entry<Integer, RiverAnnotation> entry : yAnnotations.entrySet()) {
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217 final int axis = entry.getKey();
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218 final AxisDataset dataset = this.datasets.get(new Integer(axis));
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219
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220 if (dataset == null || dataset.getRange() == null) {
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221 log.warn("No dataset available and active for axis " + axis);
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222 } else {
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223 final RiverAnnotation ya = entry.getValue();
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224 for (final StickyAxisAnnotation sta : ya.getAxisTextAnnotations()) {
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225 sta.setAxisSymbol(axis);
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226 }
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227 annotations.add(ya);
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228 }
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229 }
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230
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231 addAnnotationsToRenderer(plot, legendBuilder, annotations);
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232 }
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233
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234 /**
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235 * Create annotation that sticks to "ground" (X) axis.
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236 *
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237 * @param area
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238 * helper to calculate coordinates
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239 * @param pos
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240 * one-dimensional position (distance from axis)
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241 * @param lineStyle
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242 * the line style to use for the line.
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243 */
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244 private XYLineAnnotation createGroundStickAnnotation(final ChartArea area, final float pos, final LineStyle lineStyle) {
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245 if (lineStyle != null)
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246 return new XYLineAnnotation(pos, area.atGround(), pos, area.ofGround(ANNOTATIONS_AXIS_OFFSET), new BasicStroke(lineStyle.getWidth()),
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247 lineStyle.getColor());
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248
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249 return new XYLineAnnotation(pos, area.atGround(), pos, area.ofGround(ANNOTATIONS_AXIS_OFFSET));
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250 }
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251
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252 /**
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253 * Create annotation that sticks to the second Y axis ("right").
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254 *
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255 * @param area
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256 * helper to calculate coordinates
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257 * @param pos
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258 * one-dimensional position (distance from axis)
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259 * @param lineStyle
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260 * the line style to use for the line.
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261 */
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262 private XYLineAnnotation createRightStickAnnotation(final ChartArea area, final float pos, final LineStyle lineStyle) {
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263 if (lineStyle != null)
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264 return new XYLineAnnotation(area.atRight(), pos, area.ofRight(ANNOTATIONS_AXIS_OFFSET), pos, new BasicStroke(lineStyle.getWidth()),
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265 lineStyle.getColor());
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266
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267 return new XYLineAnnotation(area.atRight(), pos, area.ofRight(ANNOTATIONS_AXIS_OFFSET), pos);
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268 }
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269
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270 /**
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271 * Create annotation that sticks to the first Y axis ("left").
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272 *
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273 * @param area
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274 * helper to calculate coordinates
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275 * @param pos
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276 * one-dimensional position (distance from axis)
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277 * @param lineStyle
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278 * the line style to use for the line.
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279 */
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280 private XYLineAnnotation createLeftStickAnnotation(final ChartArea area, final float pos, final LineStyle lineStyle) {
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281 if (lineStyle != null)
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282 return new XYLineAnnotation(area.atLeft(), pos, area.ofLeft(ANNOTATIONS_AXIS_OFFSET), pos, new BasicStroke(lineStyle.getWidth()),
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283 lineStyle.getColor());
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284
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285 return new XYLineAnnotation(area.atLeft(), pos, area.ofLeft(ANNOTATIONS_AXIS_OFFSET), pos);
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286 }
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287
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288 /**
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289 * Create a line from a axis to a given point.
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290 *
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291 * @param axis
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292 * The "simple" axis.
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293 * @param fromD1
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294 * from-location in first dimension.
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295 * @param toD2
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296 * to-location in second dimension.
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297 * @param area
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298 * helper to calculate offsets.
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299 * @param lineStyle
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300 * optional line style.
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301 */
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302 public static XYLineAnnotation createStickyLineAnnotation(final StickyAxisAnnotation.SimpleAxis axis, final float fromD1, final float toD2,
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303 final ChartArea area, final LineStyle lineStyle) {
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304 double anchorX1 = 0d, anchorX2 = 0d, anchorY1 = 0d, anchorY2 = 0d;
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305 switch (axis) {
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306 case X_AXIS:
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307 anchorX1 = fromD1;
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308 anchorX2 = fromD1;
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309 anchorY1 = area.atGround();
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310 anchorY2 = toD2;
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311 break;
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312 case Y_AXIS:
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313 anchorX1 = area.atLeft();
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314 anchorX2 = toD2;
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315 anchorY1 = fromD1;
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316 anchorY2 = fromD1;
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317 break;
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318 case Y_AXIS2:
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319 anchorX1 = area.atRight();
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320 anchorX2 = toD2;
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321 anchorY1 = fromD1;
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322 anchorY2 = fromD1;
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323 break;
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324 }
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325
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326 if (lineStyle != null)
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327 return new XYLineAnnotation(anchorX1, anchorY1, anchorX2, anchorY2, new BasicStroke(lineStyle.getWidth()), lineStyle.getColor());
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328
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329 return new XYLineAnnotation(anchorX1, anchorY1, anchorX2, anchorY2);
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330 }
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331 }
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