Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/jfree/ShapeRenderer.java @ 8338:ac7cb15e1946
Scale second W-axis in cm according to first axis, which is expanded relative to the data, and set bounds for zooming purposes (plus a bit of cleanup in DiagramGenerator).
author | "Tom Gottfried <tom@intevation.de>" |
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date | Fri, 26 Sep 2014 18:23:45 +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 : |