Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/jfree/StyledAreaSeriesCollection.java @ 9186:eec4df8165a1

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Implemented 'ShowLineLabel' for area themes.
author gernotbelger
date Thu, 28 Jun 2018 10:47:04 +0200
parents 77eb4553245b
children d8e753d0fdb9
rev   line source
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4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
diff changeset
1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
4897a58c8746 River artifacts: Added new copyright headers.
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.dive4elements.river.themes.ThemeDocument;
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21 import org.jfree.data.xy.XYSeriesCollection;
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22
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23 /**
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24 * One or more dataseries to draw a polygon (either "open up/downwards", or
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25 * the area between two curves), a theme-document and further display options.
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26 * The theme-document will later "style" the graphical representation.
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27 * The display options can be used to control the z-order and the axis of the
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28 * dataset.
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29 */
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30 // FIXME: bad abstraction: the only purpose of this derivation is to apply specific styles. This should rather be solved similar to the XYSTyle.
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31 public class StyledAreaSeriesCollection extends XYSeriesCollection {
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32 private static final long serialVersionUID = 5274940965666948237L;
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33
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34 /** Mode, how to draw/which areas to fill. */
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35 public enum FILL_MODE {UNDER, ABOVE, BETWEEN}
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36
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37 /** MODE in use. */
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38 private FILL_MODE mode;
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39
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40 /** Theme-document with attributes about actual visual representation. */
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41 private final ThemeDocument theme;
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42
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43 /**
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44 * @param theme the theme-document.
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45 */
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46 public StyledAreaSeriesCollection(final ThemeDocument theme) {
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47 this.theme = theme;
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48 this.mode = FILL_MODE.BETWEEN;
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49 }
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50
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51
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52 /** Gets the Fill mode. */
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53 public FILL_MODE getMode() {
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54 return this.mode;
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55 }
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56
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57
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58 /** Sets the Fill mode. */
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59 public void setMode(final FILL_MODE fMode) {
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60 this.mode = fMode;
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61 }
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62
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63
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64 /**
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65 * Applies line color, size and type attributes to renderer, also
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66 * whether to draw lines and/or points.
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67 * @param renderer Renderer to apply theme to.
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68 * @return \param renderer
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69 */
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70 public StableXYDifferenceRenderer applyTheme(
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71 final StableXYDifferenceRenderer renderer
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72 ) {
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73 applyFillColor(renderer);
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74 applyShowBorder(renderer);
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75 applyShowArea(renderer);
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76 applyOutlineColor(renderer);
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77 applyOutlineStyle(renderer);
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78 applyShowLine(renderer);
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79 applyShowAreaLabel(renderer);
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80 applyShowLineLabel(renderer);
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81 applyPointStyle(renderer);
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82 applyShowMinimumMaximum(renderer);
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83 if (this.mode == FILL_MODE.UNDER) {
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84 renderer.setAreaCalculationMode(
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85 StableXYDifferenceRenderer.CALCULATE_NEGATIVE_AREA);
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86 }
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87 else if (this.mode == FILL_MODE.ABOVE) {
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88 renderer.setAreaCalculationMode(
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89 StableXYDifferenceRenderer.CALCULATE_POSITIVE_AREA);
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90 }
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91 else {
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92 renderer.setAreaCalculationMode(
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93 StableXYDifferenceRenderer.CALCULATE_ALL_AREA);
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94 }
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95
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96 // Apply text style.
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97 this.theme.parseComplexTextStyle().apply(renderer);
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98 return renderer;
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99 }
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100
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101 private void applyShowMinimumMaximum(final StableXYDifferenceRenderer renderer) {
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102
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103 // TODO: nice to have
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104
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105 // final boolean minimumVisible = this.theme.parseShowMinimum();
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106 // renderer.setIsMinimumShapeVisible(minimumVisible);
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107 //
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108 // final boolean maximumVisible = this.theme.parseShowMaximum();
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109 // renderer.setIsMaximumShapeVisible(maximumVisible);
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110 }
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111
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112 private void applyFillColor(final StableXYDifferenceRenderer renderer) {
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113
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114 Paint paint = parseFillPaint();
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115
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116 if (paint != null && this.getMode() == FILL_MODE.ABOVE) {
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117 renderer.setPositivePaint(paint);
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118 renderer.setNegativePaint(new Color(0,0,0,0));
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119 }
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120 else if (paint != null && this.getMode() == FILL_MODE.UNDER) {
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121 renderer.setNegativePaint(paint);
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122 renderer.setPositivePaint(new Color(0,0,0,0));
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123 }
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124 else {
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125 if (paint == null)
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126 paint = new Color(177, 117, 102);
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127
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128 renderer.setPositivePaint(paint);
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129 renderer.setNegativePaint(paint);
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130 }
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131 }
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132
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133 private Paint parseFillPaint() {
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134 final Color paint = this.theme.parseAreaBackgroundColor();
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135 final int transparency = this.theme.parseAreaTransparency();
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136
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137 final Color alphaPaint = withAlpha(paint, transparency);
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138
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139 final AreaFillPattern pattern = this.theme.parseAreaBackgroundPattern();
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140
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141 if( pattern == null || pattern == AreaFillPattern.patternFill )
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142 return alphaPaint;
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143
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144 final BufferedImage image = pattern.getImage(alphaPaint);
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145
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146 final Rectangle2D anchor = new Rectangle2D.Double(0,0, image.getWidth(), image.getHeight());
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147 return new TexturePaint(image, anchor);
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148 }
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149
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150 private Color withAlpha(final Color color, final int transparency) {
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151
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152 if (transparency <= 0 || color == null)
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153 return color;
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154
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155 return new Color(
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156 color.getRed(),
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157 color.getGreen(),
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158 color.getBlue(),
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159 (int)((100 - transparency) * 2.55f));
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160 }
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161
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162 private void applyShowBorder(final StableXYDifferenceRenderer renderer) {
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163 final boolean show = this.theme.parseAreaShowBorder();
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164 renderer.setDrawOutline(show);
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165 }
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166
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167 private void applyShowArea(final StableXYDifferenceRenderer renderer) {
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168
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169 final boolean showArea = this.theme.parseShowArea();
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170 renderer.setDrawArea(showArea);
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171 }
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172
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173 private void applyShowLine(final StableXYDifferenceRenderer renderer) {
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174 /* FIXME: strange: this will enable/disable showing the 'point' shapes at each vertex. */
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175 /* FIXME: this will also now be overridden by the option 'showpoints' */
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176 final boolean show = this.theme.parseShowLine();
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177 renderer.setShapesVisible(show);
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178 }
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179
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180 private void applyOutlineColor(final StableXYDifferenceRenderer renderer) {
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181 final Color c = this.theme.parseLineColorField();
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182 renderer.setOutlinePaint(c);
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183 }
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184
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185 private void applyShowAreaLabel(final StableXYDifferenceRenderer renderer) {
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186 renderer.setShowAreaLabel(this.theme.parseShowAreaLabel());
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187 }
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188
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189 private void applyShowLineLabel(final StableXYDifferenceRenderer renderer) {
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190 // REMARK: using 'showlinelabel' to activate labeling the line with the title of the theme. This is the same behaviour
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191 // as for line-themes.
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192 final boolean showLabelLine = this.theme.parseShowLineLabel();
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193 renderer.setShowTitleLabel(showLabelLine);
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194 }
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195
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196 private void applyOutlineStyle(final StableXYDifferenceRenderer renderer) {
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197 final float[] dashes = this.theme.parseLineStyle();
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198 final int size = this.theme.parseLineWidth();
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199
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200 Stroke stroke = null;
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201
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202 if (dashes.length <= 1) {
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203 stroke = new BasicStroke(Integer.valueOf(size));
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204 }
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205 else {
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206 stroke = new BasicStroke(Integer.valueOf(size),
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207 BasicStroke.CAP_BUTT,
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208 BasicStroke.JOIN_ROUND,
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209 1.0f,
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210 dashes,
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211 0.0f);
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212 }
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213
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214 renderer.setOutlineStroke(stroke);
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215 }
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216
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217 private void applyPointStyle(final StableXYDifferenceRenderer renderer) {
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218
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219 final boolean showPoints = this.theme.parseShowPoints();
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220 renderer.setShapesVisible(showPoints);
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221
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222 if( showPoints )
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223 {
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224 final int size = this.theme.parsePointWidth();
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225 final int dim = 2 * size;
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226
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227 final Ellipse2D pointShape = new Ellipse2D.Double(-size, -size, dim, dim);
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228 final Color pointColor = this.theme.parsePointColor();
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229
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230 renderer.setSeriesPaint(0, pointColor);
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231 renderer.setSeriesPaint(1, pointColor);
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232
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233 renderer.setSeriesShape(0, pointShape);
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234 renderer.setSeriesShape(1, pointShape);
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235 }
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236 }
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237
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238 public boolean shouldCalculateRange() {
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239 return this.theme.parseCalculateRange();
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240 }
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241 }
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242 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org