Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/jfree/StyledAreaSeriesCollection.java @ 9602:6b2496d71936

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Reimplemented baseline for tkh. Extended area-dataset to be able to draw baseline.
author gernotbelger
date Tue, 12 Feb 2019 14:08:16 +0100
parents ef5754ba5573
children
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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Sascha L. Teichmann <teichmann@intevation.de>
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.jfree;
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10
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11 import java.awt.BasicStroke;
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12 import java.awt.Color;
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13 import java.awt.Paint;
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14 import java.awt.Stroke;
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15 import java.awt.TexturePaint;
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16 import java.awt.geom.Ellipse2D;
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17 import java.awt.geom.Rectangle2D;
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18 import java.awt.image.BufferedImage;
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19
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20 import org.apache.log4j.Logger;
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21 import org.dive4elements.artifactdatabase.state.Facet;
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22 import org.dive4elements.artifacts.CallMeta;
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23 import org.dive4elements.river.artifacts.resources.Resources;
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24 import org.dive4elements.river.exports.LegendAggregator;
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25 import org.dive4elements.river.java2d.ShapeUtils;
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26 import org.dive4elements.river.themes.ThemeDocument;
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27 import org.dive4elements.river.utils.Formatter;
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28 import org.jfree.chart.LegendItem;
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29 import org.jfree.chart.plot.XYPlot;
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30 import org.jfree.data.xy.XYSeriesCollection;
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31
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32 /**
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33 * One or more dataseries to draw a polygon (either "open up/downwards", or
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34 * the area between two curves), a theme-document and further display options.
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35 * The theme-document will later "style" the graphical representation.
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36 * The display options can be used to control the z-order and the axis of the
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37 * dataset.
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38 */
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39 // FIXME: bad abstraction: the only purpose of this derivation is to apply specific styles. This should rather be solved
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40 // similar to the XYSTyle.
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41 public class StyledAreaSeriesCollection extends XYSeriesCollection implements StyledXYDataset {
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42 private static final long serialVersionUID = 5274940965666948237L;
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43
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44 private static final Logger log = Logger.getLogger(StyledAreaSeriesCollection.class);
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45
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46 /** Mode, how to draw/which areas to fill. */
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47 public enum FILL_MODE {
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48 UNDER, ABOVE, BETWEEN
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49 }
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50
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51 /** MODE in use. */
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52 private FILL_MODE mode;
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53
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54 /** Theme-document with attributes about actual visual representation. */
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55 private final ThemeDocument theme;
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56
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57 /**
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58 * A 'type' that allows to categorize themes by it. Tyically this is simply the facet-name of the originating
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59 * {@link Facet}.
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60 */
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61 private final String themeType;
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62
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63 /**
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64 * @param theme
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65 * the theme-document.
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66 * @param string
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67 */
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68 public StyledAreaSeriesCollection(final String themeType, final ThemeDocument theme) {
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69 this.themeType = themeType;
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70 this.theme = theme;
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71 this.mode = FILL_MODE.BETWEEN;
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72 }
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73
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74 public String getThemeType() {
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75 return this.themeType;
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76 }
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77
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78 /** Gets the Fill mode. */
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79 private FILL_MODE getMode() {
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80 return this.mode;
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81 }
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82
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83 /** Sets the Fill mode. */
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84 public void setMode(final FILL_MODE fMode) {
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85 this.mode = fMode;
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86 }
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87
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88 @Override
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89 public void applyTheme(final CallMeta callMeta, final XYPlot plot, final LegendAggregator legendBuilder, final int datasetIndex) {
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90
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91 log.debug("Registering an 'area'renderer at idx: " + datasetIndex);
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92
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93 final StableXYDifferenceRenderer dRenderer = new StableXYDifferenceRenderer();
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94
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95 if (getMode() == StyledAreaSeriesCollection.FILL_MODE.UNDER) {
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96 dRenderer.setPositivePaint(createTransparentPaint());
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97 }
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98
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99 plot.setRenderer(datasetIndex, dRenderer);
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100
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101 applyTheme(dRenderer);
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102
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103 // i18n
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104 dRenderer.setAreaLabelNumberFormat(Formatter.getFormatter(callMeta, 2, 4));
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105
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106 dRenderer.setAreaLabelTemplate(Resources.getMsg(callMeta, "area.label.template", "Area=%sm2"));
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107
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108 final LegendItem legendItem = dRenderer.getLegendItem(datasetIndex, 0);
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109 if (legendItem != null) {
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110 legendBuilder.addLegendItem(this.themeType, legendItem);
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111 } else {
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112 log.warn("Could not get LegengItem for renderer: " + datasetIndex + ", series-idx " + 0);
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113 }
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114 }
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115
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116 /**
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117 * Returns a transparently textured paint.
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118 *
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119 * @return a transparently textured paint.
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120 */
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121 private static Paint createTransparentPaint() {
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122 // TODO why not use a transparent color?
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123 final BufferedImage texture = new BufferedImage(1, 1, BufferedImage.TYPE_4BYTE_ABGR);
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124
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125 return new TexturePaint(texture, new Rectangle2D.Double(0d, 0d, 0d, 0d));
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126 }
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127
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128 /**
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129 * Applies line color, size and type attributes to renderer, also
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130 * whether to draw lines and/or points.
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131 *
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132 * @param renderer
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133 * Renderer to apply theme to.
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134 * @return \param renderer
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135 */
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136 private StableXYDifferenceRenderer applyTheme(final StableXYDifferenceRenderer renderer) {
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137 applyFillColor(renderer);
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138 applyShowBorder(renderer);
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139 applyShowArea(renderer);
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140 applyOutlineColor(renderer);
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141 applyOutlineStyle(renderer);
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142 applyShowLine(renderer);
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143 applyShowAreaLabel(renderer);
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144 applyShowLineLabel(renderer);
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145 applyPointStyle(renderer);
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146 applyShowMinimumMaximum(renderer);
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147 applyBaseLineStyle(renderer);
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148 if (this.mode == FILL_MODE.UNDER) {
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149 renderer.setAreaCalculationMode(StableXYDifferenceRenderer.CALCULATE_NEGATIVE_AREA);
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150 } else if (this.mode == FILL_MODE.ABOVE) {
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151 renderer.setAreaCalculationMode(StableXYDifferenceRenderer.CALCULATE_POSITIVE_AREA);
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152 } else {
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153 renderer.setAreaCalculationMode(StableXYDifferenceRenderer.CALCULATE_ALL_AREA);
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154 }
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155
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156 // Apply text style.
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157 this.theme.parseComplexTextStyle().apply(renderer);
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158 return renderer;
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159 }
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160
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161 private void applyShowMinimumMaximum(final StableXYDifferenceRenderer renderer) {
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162
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163 // TODO: nice to have
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164
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165 // final boolean minimumVisible = this.theme.parseShowMinimum();
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166 // renderer.setIsMinimumShapeVisible(minimumVisible);
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167 //
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168 // final boolean maximumVisible = this.theme.parseShowMaximum();
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169 // renderer.setIsMaximumShapeVisible(maximumVisible);
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170 }
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171
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172 private void applyBaseLineStyle(final StableXYDifferenceRenderer renderer) {
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173 final Color c = this.theme.parseBaseLineColor();
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174 renderer.setBaseLineColor(c);
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175 }
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176
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177 private void applyFillColor(final StableXYDifferenceRenderer renderer) {
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178
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179 Paint paint = parseFillPaint();
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180
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181 if (paint != null && this.getMode() == FILL_MODE.ABOVE) {
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182 renderer.setPositivePaint(paint);
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183 renderer.setNegativePaint(new Color(0, 0, 0, 0));
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184 } else if (paint != null && this.getMode() == FILL_MODE.UNDER) {
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185 renderer.setNegativePaint(paint);
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186 renderer.setPositivePaint(new Color(0, 0, 0, 0));
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187 } else {
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188 if (paint == null)
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189 paint = new Color(177, 117, 102);
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190
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191 renderer.setPositivePaint(paint);
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192 renderer.setNegativePaint(paint);
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193 }
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194 }
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195
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196 private Paint parseFillPaint() {
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197 final Color paint = this.theme.parseAreaBackgroundColor();
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198 final int transparency = this.theme.parseAreaTransparency();
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199
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200 final Color alphaPaint = ShapeUtils.withAlpha(paint, transparency);
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201
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202 final AreaFillPattern pattern = this.theme.parseAreaBackgroundPattern();
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203
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204 if (pattern == null || pattern == AreaFillPattern.patternFill)
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205 return alphaPaint;
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206
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207 final BufferedImage image = pattern.getImage(alphaPaint);
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208
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209 final Rectangle2D anchor = new Rectangle2D.Double(0, 0, image.getWidth(), image.getHeight());
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210 return new TexturePaint(image, anchor);
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211 }
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212
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213 private void applyShowBorder(final StableXYDifferenceRenderer renderer) {
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214 final boolean show = this.theme.parseAreaShowBorder();
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215 renderer.setDrawOutline(show);
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216 }
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217
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218 private void applyShowArea(final StableXYDifferenceRenderer renderer) {
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219
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220 final boolean showArea = this.theme.parseShowArea();
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221 renderer.setDrawArea(showArea);
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222 }
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223
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224 private void applyShowLine(final StableXYDifferenceRenderer renderer) {
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225 /* FIXME: strange: this will enable/disable showing the 'point' shapes at each vertex. */
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226 /* FIXME: this will also now be overridden by the option 'showpoints' */
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227 final boolean show = this.theme.parseShowLine();
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228 renderer.setShapesVisible(show);
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229 }
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230
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231 private void applyOutlineColor(final StableXYDifferenceRenderer renderer) {
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232 final Color c = this.theme.parseLineColorField();
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233 renderer.setOutlinePaint(c);
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234 }
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235
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236 private void applyShowAreaLabel(final StableXYDifferenceRenderer renderer) {
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237 renderer.setShowAreaLabel(this.theme.parseShowAreaLabel());
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238 }
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239
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240 private void applyShowLineLabel(final StableXYDifferenceRenderer renderer) {
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241 // REMARK: using 'showlinelabel' to activate labeling the line with the title of the theme. This is the same behaviour
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242 // as for line-themes.
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243 final boolean showLabelLine = this.theme.parseShowLineLabel();
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244 renderer.setShowTitleLabel(showLabelLine);
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245 }
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246
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247 private void applyOutlineStyle(final StableXYDifferenceRenderer renderer) {
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248 final float[] dashes = this.theme.parseLineStyle();
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249 final int size = this.theme.parseLineWidth();
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250
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251 Stroke stroke = null;
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252
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253 if (dashes.length <= 1) {
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254 stroke = new BasicStroke(Integer.valueOf(size));
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255 } else {
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256 stroke = new BasicStroke(Integer.valueOf(size), BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND, 1.0f, dashes, 0.0f);
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257 }
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258
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259 renderer.setOutlineStroke(stroke);
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260 }
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261
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262 private void applyPointStyle(final StableXYDifferenceRenderer renderer) {
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263
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264 final boolean showPoints = this.theme.parseShowPoints();
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265 renderer.setShapesVisible(showPoints);
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266
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267 if (showPoints) {
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268 final int size = this.theme.parsePointWidth();
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269 final int dim = 2 * size;
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270
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271 final Ellipse2D pointShape = new Ellipse2D.Double(-size, -size, dim, dim);
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272 final Color pointColor = this.theme.parsePointColor();
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273
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274 renderer.setSeriesPaint(0, pointColor);
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275 renderer.setSeriesPaint(1, pointColor);
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276
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277 renderer.setSeriesShape(0, pointShape);
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278 renderer.setSeriesShape(1, pointShape);
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279 }
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280 }
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281
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282 public boolean shouldCalculateRange() {
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283 return this.theme.parseCalculateRange();
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284 }
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285
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286 @Override
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287 public void applyAggregatedLegendTheme(final LegendItem item, final ThemeDocument legendTheme) {
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288 /* not implemented */
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289 }
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290 }
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