Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/jfree/ShapeRenderer.java @ 7119:988dde49ae65
Fix area label rendering.
Previously the showarealabel setting was neither parsed nor
used to decide if the arealabel should be drawn.
It is mostly off but enabled for Cross Sections. It is now
also shown in the style editors in case someone got used to it ;)
author | Andre Heinecke <aheinecke@intevation.de> |
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date | Tue, 24 Sep 2013 18:13:51 +0200 |
parents | af13ceeba52a |
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rev | line source |
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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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.Font; |
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12 import java.awt.Graphics2D; |
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13 import java.awt.Paint; |
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14 import java.awt.Shape; |
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15 |
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16 import java.awt.geom.Point2D; |
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17 import java.awt.geom.Rectangle2D; |
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18 |
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19 import java.util.ArrayList; |
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20 import java.util.List; |
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21 import java.util.Map; |
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22 |
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23 import org.jfree.chart.axis.ValueAxis; |
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24 |
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25 import org.jfree.chart.labels.ItemLabelPosition; |
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26 import org.jfree.chart.labels.XYItemLabelGenerator; |
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27 |
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28 import org.jfree.chart.plot.CrosshairState; |
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29 import org.jfree.chart.plot.PlotOrientation; |
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30 import org.jfree.chart.plot.PlotRenderingInfo; |
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31 import org.jfree.chart.plot.XYPlot; |
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32 |
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33 import org.jfree.chart.renderer.xy.StandardXYItemRenderer; |
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34 import org.jfree.chart.renderer.xy.XYItemRendererState; |
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35 |
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36 import org.jfree.data.xy.XYDataset; |
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37 |
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38 import org.jfree.text.TextUtilities; |
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39 |
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40 import org.jfree.ui.RectangleEdge; |
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41 |
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42 public class ShapeRenderer |
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43 extends StandardXYItemRenderer { |
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44 |
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45 public static class Entry { |
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46 protected Shape shape; |
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47 protected Shape frame; |
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48 protected Paint paint; |
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49 protected boolean filled; |
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50 |
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51 public Entry( |
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52 Shape shape, |
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53 Paint paint, |
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54 boolean filled |
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55 ) { |
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56 this.shape = shape; |
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57 this.paint = paint; |
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58 this.filled = filled; |
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59 } |
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60 |
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61 public Entry( |
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62 Shape shape, |
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63 Shape frame, |
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64 Paint paint, |
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65 boolean filled |
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66 ) { |
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67 this.shape = shape; |
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68 this.frame = frame; |
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69 this.paint = paint; |
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70 this.filled = filled; |
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71 } |
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72 |
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73 public Shape getShape() { |
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74 return shape; |
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75 } |
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76 |
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77 public void setShape(Shape shape) { |
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78 this.shape = shape; |
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79 } |
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80 |
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81 |
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82 public Paint getPaint() { |
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83 return paint; |
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84 } |
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85 |
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86 public void setPaint(Paint paint) { |
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87 this.paint = paint; |
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88 } |
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89 |
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90 public boolean getFilled() { |
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91 return filled; |
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92 } |
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93 |
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94 public void setFilled(boolean filled) { |
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95 this.filled = filled; |
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96 } |
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97 |
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98 public boolean equals(Object other) { |
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99 Entry entry = (Entry)other; |
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100 return filled == entry.filled |
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101 && paint.equals(entry.paint) |
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102 && shape.equals(entry.shape); |
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103 } |
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104 |
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105 public int hashCode() { |
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106 return |
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107 shape.hashCode() ^ |
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108 paint.hashCode() ^ |
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109 (filled ? 1231 : 1237); |
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110 } |
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111 } // class Entry |
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112 |
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113 public interface LabelGenerator { |
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114 String createLabel(Entry entry); |
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115 } // interface EntryLabelGenerator |
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116 |
3162
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117 protected Entry [] entries; |
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118 |
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119 protected List<Rectangle2D> labelBoundingBoxes; |
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120 |
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121 protected Rectangle2D area; |
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122 |
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123 public ShapeRenderer() { |
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124 this(SHAPES); |
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125 } |
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126 |
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127 public ShapeRenderer(int type) { |
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128 super(type); |
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129 } |
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130 |
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131 public ShapeRenderer(Map<Entry, Integer> map) { |
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132 super(SHAPES); |
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133 setEntries(map); |
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134 } |
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135 |
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136 public void setEntries(Entry [] entries) { |
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137 this.entries = entries; |
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138 } |
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139 |
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140 public void setEntries(Map<Entry, Integer> map) { |
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141 Entry [] entries = new Entry[map.size()]; |
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142 |
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143 for (Map.Entry<Entry, Integer> entry: map.entrySet()) { |
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144 entries[entry.getValue()] = entry.getKey(); |
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145 } |
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146 |
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147 setEntries(entries); |
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148 } |
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149 |
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150 @Override |
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151 public Shape getSeriesShape(int series) { |
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152 return entries[series].shape; |
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153 } |
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154 |
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155 public Shape getSeriesFrame(int series) { |
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156 return entries[series].frame; |
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157 } |
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158 |
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159 @Override |
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160 public Paint getSeriesPaint(int series) { |
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161 return entries[series].paint; |
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162 } |
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163 |
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164 @Override |
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165 public boolean getItemShapeFilled(int series, int item) { |
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166 return entries[series].filled; |
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167 } |
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168 |
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169 @Override |
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170 public XYItemRendererState initialise( |
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171 Graphics2D g2, |
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172 Rectangle2D dataArea, |
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173 XYPlot plot, |
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174 XYDataset data, |
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175 PlotRenderingInfo info |
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176 ) { |
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177 if (labelBoundingBoxes == null) { |
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178 labelBoundingBoxes = new ArrayList<Rectangle2D>(32); |
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179 } |
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180 else { |
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181 labelBoundingBoxes.clear(); |
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182 } |
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183 |
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184 area = dataArea; |
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185 |
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186 return super.initialise(g2, dataArea, plot, data, info); |
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187 } |
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188 |
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189 @Override |
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190 public void drawItem( |
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191 Graphics2D g2, |
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192 XYItemRendererState state, |
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193 Rectangle2D dataArea, |
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194 PlotRenderingInfo info, |
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195 XYPlot plot, |
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196 ValueAxis domainAxis, |
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197 ValueAxis rangeAxis, |
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198 XYDataset dataset, |
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199 int series, |
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200 int item, |
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201 CrosshairState crosshairState, |
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202 int pass |
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203 ) { |
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204 if (!getItemVisible(series, item)) { |
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205 return; |
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206 } |
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207 |
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208 // get the data point... |
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209 double x1 = dataset.getXValue(series, item); |
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210 double y1 = dataset.getYValue(series, item); |
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211 if (Double.isNaN(x1) || Double.isNaN(y1)) { |
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212 return; |
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213 } |
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214 |
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215 RectangleEdge xAxisLocation = plot.getDomainAxisEdge(); |
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216 RectangleEdge yAxisLocation = plot.getRangeAxisEdge(); |
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217 double x = domainAxis.valueToJava2D(x1, dataArea, xAxisLocation); |
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218 double y = rangeAxis.valueToJava2D(y1, dataArea, yAxisLocation); |
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219 |
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220 if (dataArea.contains(x, y)) |
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221 super.drawItem( |
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222 g2, |
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223 state, |
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224 dataArea, |
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225 info, |
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226 plot, |
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227 domainAxis, |
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228 rangeAxis, |
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229 dataset, |
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230 series, |
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231 item, |
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232 crosshairState, |
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233 pass); |
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234 } |
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235 |
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236 protected Point2D shiftBox(Rectangle2D box) { |
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237 |
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238 double cx1 = area.getX(); |
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239 double cy1 = area.getY(); |
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240 double cx2 = cx1 + area.getWidth(); |
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241 double cy2 = cy1 + area.getHeight(); |
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242 |
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243 double bx1 = box.getX(); |
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244 double by1 = box.getY(); |
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245 double bx2 = bx1 + box.getWidth(); |
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246 double by2 = by1 + box.getHeight(); |
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247 |
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248 double dx; |
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249 double dy; |
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250 |
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251 if (bx1 < cx1) { |
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252 dx = cx1 - bx1; |
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253 } |
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254 else if (bx2 > cx2) { |
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255 dx = cx2 - bx2; |
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256 } |
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257 else { |
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258 dx = 0d; |
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259 } |
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260 |
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261 if (by1 < cy1) { |
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262 dy = cy1 - by1; |
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263 } |
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264 else if (by2 > cy2) { |
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265 dy = cy2 - by2; |
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266 } |
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267 else { |
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268 dy = 0d; |
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269 } |
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270 |
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271 return new Point2D.Double(dx, dy); |
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272 } |
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273 |
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274 @Override |
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275 protected void drawItemLabel( |
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276 Graphics2D g2, |
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277 PlotOrientation orientation, |
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278 XYDataset dataset, |
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279 int series, |
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280 int item, |
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281 double x, |
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282 double y, |
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283 boolean negative |
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284 ) { |
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285 XYItemLabelGenerator generator = getItemLabelGenerator(series, item); |
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286 if (generator == null) { |
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287 return; |
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288 } |
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289 |
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290 Font labelFont = getItemLabelFont(series, item); |
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291 |
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292 Paint paint = getItemLabelPaint(series, item); |
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293 |
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294 g2.setFont(labelFont); |
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295 g2.setPaint(paint); |
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296 |
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297 String label = generator.generateLabel(dataset, series, item); |
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298 |
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299 ATTEMPS: for (int attempt = 0; attempt < 2; ++attempt) { |
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300 // get the label position.. |
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301 ItemLabelPosition position = null; |
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302 |
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303 boolean pos; |
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304 switch (attempt) { |
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305 case 0: pos = negative; break; |
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306 case 1: pos = !negative; break; |
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307 default: break ATTEMPS; |
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308 } |
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309 |
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310 if (pos) { |
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311 position = getNegativeItemLabelPosition(series, item); |
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312 } |
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313 else { |
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314 position = getPositiveItemLabelPosition(series, item); |
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315 } |
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316 |
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317 // work out the label anchor point... |
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318 Point2D anchorPoint = calculateLabelAnchorPoint( |
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319 position.getItemLabelAnchor(), x, y, orientation); |
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320 |
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321 Shape labelShape = TextUtilities.calculateRotatedStringBounds( |
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322 label, g2, |
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323 (float)anchorPoint.getX(), (float)anchorPoint.getY(), |
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324 position.getTextAnchor(), position.getAngle(), |
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325 position.getRotationAnchor()); |
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326 |
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327 Rectangle2D bbox = labelShape.getBounds2D(); |
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328 |
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329 Point2D shift = shiftBox(bbox); |
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330 |
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331 bbox = new Rectangle2D.Double( |
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332 bbox.getX() + shift.getX(), |
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333 bbox.getY() + shift.getY(), |
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334 bbox.getWidth(), |
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335 bbox.getHeight()); |
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336 |
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337 if (labelBoundingBoxes != null) { |
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338 for (Rectangle2D old: labelBoundingBoxes) { |
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339 if (old.intersects(bbox)) { |
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340 continue ATTEMPS; |
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341 } |
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342 } |
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343 labelBoundingBoxes.add(bbox); |
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344 } |
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345 |
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346 TextUtilities.drawRotatedString( |
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347 label, g2, |
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348 (float)(anchorPoint.getX() + shift.getX()), |
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349 (float)(anchorPoint.getY() + shift.getY()), |
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350 position.getTextAnchor(), position.getAngle(), |
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351 position.getRotationAnchor()); |
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352 break; |
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353 } |
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354 } |
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355 } |
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356 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |