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package org.jfree.chart.plot; |
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import java.awt.Color; |
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import java.util.Iterator; |
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import java.util.LinkedList; |
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import java.util.Map; |
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import java.util.NoSuchElementException; |
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import java.util.Set; |
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import java.util.TreeMap; |
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import javax.swing.event.ChangeEvent; |
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import javax.swing.event.ChangeListener; |
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public class GradientColorPalette |
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implements Cloneable { |
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private TreeMap keyColorMap; |
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private boolean linearMapping; |
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private LinkedList listeners; |
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| 62 | 20 | public GradientColorPalette() { |
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| 64 | 20 | this.keyColorMap = new TreeMap(); |
| 65 | 20 | this.linearMapping = true; |
| 66 | 20 | this.listeners = new LinkedList(); |
| 67 | 20 | addKeyColor (-1.0, new Color(255, 0, 0)); |
| 68 | 20 | addKeyColor ( 0.0, new Color( 0, 0, 0)); |
| 69 | 20 | addKeyColor ( 1.0, new Color( 0,255, 0)); |
| 70 | 20 | return; |
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} |
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| 83 | 22 | public GradientColorPalette(double min, double max) { |
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| 85 | 22 | this.keyColorMap = new TreeMap(); |
| 86 | 22 | this.linearMapping = true; |
| 87 | 22 | this.listeners = new LinkedList(); |
| 88 | 22 | addKeyColor (min, new Color(255, 0, 0)); |
| 89 | 22 | addKeyColor ( 0.0, new Color( 0, 0, 0)); |
| 90 | 22 | addKeyColor (max, new Color( 0,255, 0)); |
| 91 | 22 | return; |
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} |
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| 101 | 3 | public GradientColorPalette(Map keyColorMap) { |
| 102 | 3 | this.keyColorMap = new TreeMap(keyColorMap); |
| 103 | 2 | this.linearMapping = true; |
| 104 | 2 | this.listeners = new LinkedList(); |
| 105 | 2 | } |
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public Color setKeyColor(double value, Color color) { |
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| 117 | 8 | if (color == null) throw new NullPointerException(); |
| 118 | 7 | Color old = (Color)this.keyColorMap.remove((Object)new Double(value)); |
| 119 | 7 | this.keyColorMap.put ((Object)new Double(value), (Object)color); |
| 120 | 7 | notifyChangeListeners(new ChangeEvent(this)); |
| 121 | 7 | return old; |
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} |
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public void addKeyColor(double value, int r, int g, int b) |
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throws IllegalArgumentException { |
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| 144 | 14 | addKeyColor(value, new Color(r,g,b)); |
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| 146 | 8 | } |
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public void addKeyColor(double value, Color color) |
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throws NullPointerException { |
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| 161 | 140 | if (color == null) throw new NullPointerException(); |
| 162 | 139 | this.keyColorMap.put ((Object)new Double(value), (Object)color); |
| 163 | 139 | notifyChangeListeners(new ChangeEvent(this)); |
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| 165 | 139 | } |
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public void addChangeListener(ChangeListener listener) { |
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| 174 | 26 | this.listeners.add((Object)listener); |
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| 176 | 26 | } |
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public void removeChangeListener(ChangeListener listener) { |
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| 185 | 2 | this.listeners.remove((Object)listener); |
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| 187 | 2 | } |
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private void notifyChangeListeners(ChangeEvent event) { |
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| 196 | 163 | Iterator iterator = listeners.iterator(); |
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ChangeListener listener; |
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| 199 | 165 | while(iterator.hasNext()) { |
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| 201 | 2 | listener = (ChangeListener)(iterator.next()); |
| 202 | 2 | listener.stateChanged (event); |
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| 204 | 2 | } |
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| 206 | 163 | } |
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public Set getKeyColors() { |
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| 215 | 16 | return this.keyColorMap.keySet(); |
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} |
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public Color getKeyColor(double value) { |
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| 230 | 43 | return (Color)this.keyColorMap.get((Object)new Double(value)); |
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} |
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public Color removeKeyColor(double value) { |
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| 244 | 7 | Color old = (Color)this.keyColorMap.remove((Object)new Double(value)); |
| 245 | 7 | notifyChangeListeners(new ChangeEvent(this)); |
| 246 | 7 | return old; |
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} |
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public Color getColor(double value) { |
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double proportion; |
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Color color1; |
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Color color2; |
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Color color; |
| 261 | 90 | Double valueObject = new Double(value); |
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Double value1; |
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Double value2; |
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| 266 | 90 | color = (Color)this.keyColorMap.get((Object)(valueObject)); |
| 267 | 90 | if (color != null) return color; |
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try { |
| 271 | 7 | value1 = (Double)this.keyColorMap.headMap(valueObject).lastKey(); |
| 272 | 2 | } catch (NoSuchElementException e) { |
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| 274 | 2 | return (Color)this.keyColorMap.get((Object) |
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(this.keyColorMap.tailMap(valueObject).firstKey()) |
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); |
| 277 | 5 | } |
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try { |
| 281 | 5 | value2 = (Double)this.keyColorMap.tailMap(valueObject).firstKey(); |
| 282 | 1 | } catch (NoSuchElementException e) { |
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| 284 | 1 | return (Color)this.keyColorMap.get((Object) |
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(this.keyColorMap.headMap(valueObject).lastKey()) |
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); |
| 287 | 4 | } |
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| 289 | 4 | color1 = (Color)this.keyColorMap.get((Object)value1); |
| 290 | 4 | color2 = (Color)this.keyColorMap.get((Object)value2); |
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| 293 | 4 | if (this.linearMapping) { |
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| 295 | 1 | proportion = (value-value1.doubleValue()) |
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/ (value2.doubleValue()-value1.doubleValue()); |
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| 298 | 1 | } else { |
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double logvalue; |
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double logvalue1; |
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double logvalue2; |
| 304 | 3 | if (value<0) { |
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| 309 | 2 | if (value2.doubleValue() > 0) |
| 310 | 0 | return new Color(0,0,0); |
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| 314 | 2 | if (value2.doubleValue() == 0) value2 = new Double(value/100); |
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| 316 | 2 | logvalue = Math.log(-value); |
| 317 | 2 | logvalue1 = Math.log(-value1.doubleValue()); |
| 318 | 2 | logvalue2 = Math.log(-value2.doubleValue()); |
| 319 | 2 | proportion = (logvalue-logvalue1) |
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/ (logvalue2-logvalue1); |
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| 322 | 2 | } else { |
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| 327 | 1 | if (value1.doubleValue() < 0) |
| 328 | 0 | return new Color(0,0,0); |
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| 332 | 1 | if (value1.doubleValue() == 0) value1 = new Double(value/100); |
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| 334 | 1 | logvalue = Math.log(value); |
| 335 | 1 | logvalue1 = Math.log(value1.doubleValue()); |
| 336 | 1 | logvalue2 = Math.log(value2.doubleValue()); |
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| 338 | 1 | proportion = (logvalue-logvalue1) |
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/ (logvalue2-logvalue1); |
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} |
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} |
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| 345 | 4 | return new Color( |
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(int)(color2.getRed()*proportion + |
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color1.getRed()*(1-proportion)), |
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(int)(color2.getGreen()*proportion + |
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color1.getGreen()*(1-proportion)), |
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(int)(color2.getBlue()*proportion + |
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color1.getBlue()*(1-proportion)) |
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); |
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} |
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public void setLinear(boolean linear) { |
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| 364 | 10 | this.linearMapping = linear; |
| 365 | 10 | notifyChangeListeners (new ChangeEvent(this)); |
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| 367 | 10 | } |
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public boolean isLinear() { |
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| 377 | 10 | return this.linearMapping; |
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} |
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public Object clone() { |
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| 388 | 1 | Iterator iterator = listeners.iterator(); |
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ChangeListener listener; |
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| 391 | 1 | GradientColorPalette clone = new GradientColorPalette(this.keyColorMap); |
| 392 | 1 | clone.setLinear(this.linearMapping); |
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| 394 | 3 | while(iterator.hasNext()) { |
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| 396 | 2 | listener = (ChangeListener)(iterator.next()); |
| 397 | 2 | clone.addChangeListener(listener); |
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| 399 | 2 | } |
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| 401 | 1 | return (Object)clone; |
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} |
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public boolean equals(Object obj) { |
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GradientColorPalette that; |
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Set thisKeyColors; |
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Set thatKeyColors; |
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LinkedList listeners; |
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Iterator iterator; |
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| 420 | 7 | if (!(obj instanceof GradientColorPalette)) return false; |
| 421 | 7 | that = (GradientColorPalette)obj; |
| 422 | 7 | if (that.isLinear() != this.linearMapping) return false; |
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| 424 | 7 | thisKeyColors = this.getKeyColors(); |
| 425 | 7 | thatKeyColors = that.getKeyColors(); |
| 426 | 7 | if (!thisKeyColors.equals(thatKeyColors)) return false; |
| 427 | 5 | iterator = thisKeyColors.iterator(); |
| 428 | 19 | while (iterator.hasNext()) { |
| 429 | 15 | double value = ((Double)iterator.next()).doubleValue(); |
| 430 | 15 | if (!this.getKeyColor(value).equals(that.getKeyColor(value))) |
| 431 | 1 | return false; |
| 432 | 14 | } |
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| 434 | 4 | return true; |
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} |
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} |