Mercurial > hg > blitz_condensed
annotate src/org/dancres/blitz/tools/dash/graph/Chart.java @ 28:4b2f23b6feca
Add a schema compatibility check to indexer that parallels storage.
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 12 Jun 2010 10:11:15 +0100 |
parents | 77db38eb3042 |
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rev | line source |
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0
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1 package org.dancres.blitz.tools.dash.graph; |
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2 |
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3 import org.dancres.blitz.tools.dash.ColorScheme; |
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4 |
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5 import java.awt.*; |
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6 import java.text.*; |
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7 import javax.swing.*; |
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8 |
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9 public class Chart extends JPanel |
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10 implements ChartItemEnabler |
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11 { |
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12 |
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13 private class Data |
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14 { |
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15 double points[]; |
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16 String label; |
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17 boolean isVisible=true; |
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18 double [] pointFactor; |
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19 String [] tags; |
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20 int [] date; |
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21 |
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22 public int getSize() { return points.length;} |
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23 public double getPoint(int p) { return points[p];} |
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24 public double getFactor(int f) { return pointFactor[f];} |
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25 public String getTag(int f) { return tags[f];} |
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26 } |
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27 private static final Color [] chartColor={ColorScheme.READ, |
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28 ColorScheme.WRITE, |
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29 ColorScheme.TAKE}; |
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30 |
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31 //constraints |
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32 private static final int MAX_DATA_SETS=chartColor.length; |
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33 |
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34 private int dsCounter=0; |
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35 private Data [] dataSet= new Data[MAX_DATA_SETS]; |
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36 private int labelEvery=1; |
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37 // |
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38 //identifier mappings |
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39 private static final int SOLID=0; |
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40 private static final int OUTLINE=1; |
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41 private static NumberFormat formatter = NumberFormat.getInstance(); |
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42 |
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43 private IdDrawer [] idDrawer= new IdDrawer[MAX_DATA_SETS]; |
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44 |
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45 private int maxSize=0; |
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46 private double maxValue=0.0; |
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47 private double minValue=0.0; |
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48 private int maxId; //index to largest dataset |
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49 private int startAt=0; //for drawing to endAt |
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50 private int endAt=-1; //reset in zoom |
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51 private int [] xTagPosition; |
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52 |
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53 private Color axisColor=Color.black; |
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54 private Color gridColor=Color.gray; |
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55 private int yOffset=25; |
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56 private boolean dirtyCache; |
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57 private Dimension minSize=new Dimension(200,200); |
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58 private Dimension currentSize=null; |
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59 private Rectangle chartRect= new Rectangle(); |
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60 private Rectangle zoomRect; |
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61 private boolean isShown=false; //at least one dataset visiable |
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62 |
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63 //public methods |
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64 public Chart() |
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65 { |
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66 idDrawer[0]=new SqDrawer(SOLID); |
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67 idDrawer[1]=new XDrawer(); |
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68 idDrawer[2]=new RoundRectDrawer(SOLID); |
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69 |
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70 |
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71 } |
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72 |
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73 synchronized public void addData(final String name,final double [] data, |
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74 final String [] tags) |
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75 throws ChartException |
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76 { |
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77 addData(name,data,tags,null); |
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78 } |
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79 |
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80 synchronized public void addData(final String name,final double [] data, |
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81 final String [] tags,final int [] dates) |
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82 throws ChartException |
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83 { |
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84 if(dsCounter==MAX_DATA_SETS) |
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85 throw new ChartException("Maximum number of data sets exceeded!"); |
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86 |
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87 setDataAt(dsCounter++,name,data,tags,dates); |
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88 } |
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89 |
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90 public void setDataAt(int index,final String name,final double [] data, |
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91 final String [] tags,final int [] dates) |
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92 throws ChartException |
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93 { |
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94 dirtyCache=true; //flag that calcFactors must be called internally |
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95 endAt=-1; |
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96 |
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97 Data d= new Data(); |
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98 d.points=data; |
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99 d.label=name; |
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100 d.tags=tags; |
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101 if(dates!=null) |
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102 d.date=dates; |
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103 else |
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104 { |
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105 //set to defaults |
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106 int np=data.length; |
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107 d.date= new int[np]; |
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108 for(int i=0;i<np;i++) |
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109 d.date[i]=i; |
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110 } |
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111 d.pointFactor= new double[ tags.length ]; |
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112 dataSet[ index ]=d; |
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113 } |
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114 public void setLabelEvery(int every) {labelEvery=every;} |
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115 |
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116 public static int getMaxSupportedDataSets() {return MAX_DATA_SETS;} |
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117 |
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118 public Dimension getMinimumSize() |
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119 { |
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120 return minSize; |
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121 } |
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122 |
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123 public Dimension getPreferredSize() |
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124 { |
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125 if(currentSize==null) |
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126 currentSize= getSize(); |
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127 |
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128 return currentSize; |
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129 } |
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130 |
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131 public void setSize(Dimension d) |
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132 { |
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133 super.setSize(d); |
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134 currentSize=d; |
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135 } |
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136 |
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137 public void print(final Graphics g,final int yoffset) |
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138 { |
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139 int ty=yOffset; |
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140 yOffset=yoffset; |
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141 super.print(g); |
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142 yOffset=ty; |
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143 } |
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144 |
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145 public void enableData(final String name,final boolean yesno) |
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146 { |
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147 for( int i=0;i<dsCounter;i++) |
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148 { |
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149 if(dataSet[i].label.compareTo(name)==0) |
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150 { |
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151 dataSet[i].isVisible=yesno; |
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152 dirtyCache=true; |
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153 repaint(); |
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154 return; |
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155 } |
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156 } |
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157 } |
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158 |
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159 public void paint(Graphics g) |
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160 { |
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161 Dimension dim=getSize(); |
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162 g.setColor(Color.white); |
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163 g.fillRect(0,0,dim.width,dim.height); |
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164 |
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165 if(dirtyCache) |
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166 { |
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167 calcFactors(); |
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168 dirtyCache=false; |
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169 } |
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170 g.setFont( new Font("Dialog",Font.PLAIN,10) ); |
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171 |
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172 if(dim.height<50) //to small |
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173 { |
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174 return; |
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175 } |
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176 int xoff=45; |
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177 int yoff=yOffset; //set in print(), default==25 |
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178 int wid=dim.width-(2*xoff); |
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179 int hi=dim.height-(2*yoff); |
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180 int baseY=15; |
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181 int legy=baseY; //title pos |
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182 int legx=xoff; |
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183 |
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184 FontMetrics fm=g.getFontMetrics(); |
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185 |
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186 isShown=false; |
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187 boolean firstchart=true; |
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188 int ns=dsCounter; |
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189 double prevx=0;//last place vert grid line drawn |
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190 double lastLabelPos=-1000;//make sure first label is always drawn |
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191 //Draw dataset titles, then calc size of graphRect |
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192 for(int i=0;i<ns;i++) |
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193 { |
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194 if(dataSet[i].isVisible) |
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195 { |
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196 g.setColor( chartColor[i] ); |
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197 |
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198 String dslabel=dataSet[i].label; |
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199 int strWidth=fm.stringWidth(dslabel); |
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200 if((strWidth+legx)>(wid-5) && firstchart==false) //CR |
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201 { |
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202 legx=xoff;legy+=15; |
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203 } |
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204 firstchart=false; |
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205 //draw identifier |
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206 idDrawer[i].draw(g,legx-2,legy-7); |
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207 //draw label |
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208 g.drawString(dslabel,legx+5,legy); |
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209 |
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210 legx+=strWidth+12; |
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211 } |
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212 } |
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213 |
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214 //now calc the drawable area for the chart |
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215 // draw zoomable area |
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216 yoff=legy+15; |
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217 hi-=(legy-baseY)+5; |
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218 |
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219 if(zoomRect!=null) |
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220 { |
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221 g.setColor(Color.lightGray); |
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222 g.fillRect(zoomRect.x,yoff,zoomRect.width,hi); |
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223 } |
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224 |
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225 //border |
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226 g.setColor(axisColor); |
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227 g.drawRect(xoff,yoff,wid,hi); |
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228 |
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229 //cache for zooming |
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230 chartRect.setBounds(xoff,yoff,wid,hi); |
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231 |
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232 //draw the points |
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233 for(int i=0;i<ns;i++) |
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234 { |
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235 if(dataSet[i].isVisible) |
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236 { |
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237 g.setColor( chartColor[i] ); |
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238 int labelWidth=fm.stringWidth(dataSet[i].getTag(0)); |
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239 |
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240 isShown=true; |
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241 int npoints=dataSet[i].getSize(); |
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242 double lastx=0;//=xoff; |
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243 double lasty=0;//yoff+hi; |
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244 int labelCounter=labelEvery; //make sure first label is drawn |
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245 |
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246 for(int j=startAt;j<npoints && j<=endAt;j++) |
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247 { |
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248 double val=dataSet[i].getPoint(j); |
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249 double xpos=xoff+(wid*dataSet[i].getFactor(j)); |
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250 double yfactor= |
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251 (val-minValue)/(maxValue-minValue); |
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252 double ypos=yoff+(hi*(1-yfactor)); |
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253 |
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254 if(lastx==0 && lasty==0) |
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255 { |
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256 //set to current |
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257 lastx=xpos;lasty=ypos; |
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258 } |
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259 if(xpos>(prevx+25)) |
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260 { |
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261 g.setColor(gridColor); |
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262 g.drawLine((int) xpos,yoff, |
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263 (int) xpos,yoff+hi+2); |
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264 g.setColor(axisColor); |
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265 if(labelCounter%labelEvery==0 && |
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266 xpos>(lastLabelPos+labelWidth+10)) |
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267 { |
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268 xTagPosition[j]=(int)xpos-5; |
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269 g.drawString(dataSet[i].getTag(j),xTagPosition[j],yoff+hi+20); |
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270 lastLabelPos=xpos; |
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271 } |
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272 else |
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273 { |
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274 xTagPosition[j]=-1; //invalid |
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275 } |
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276 g.setColor(chartColor[i]); |
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277 prevx=xpos; |
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278 } |
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279 |
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280 g.drawLine((int)lastx,(int)lasty,(int)xpos, |
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281 (int)ypos); |
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282 //draw identifier |
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283 //g.drawRect((int)xpos-1,(int)ypos-1,2,2); |
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284 idDrawer[i].draw(g,(int)xpos-2,(int)ypos-2); |
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285 lastx=xpos; |
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286 lasty=ypos; |
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287 labelCounter++; |
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288 } |
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289 |
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290 } |
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291 |
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292 } |
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293 if(isShown) |
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294 { |
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295 |
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296 |
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297 double inc=(maxValue-minValue)/4;//number of labels (could be set by client) |
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298 double label=maxValue; |
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299 double y=yoff; |
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300 |
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301 //System.out.println("maxValue="+maxValue+"minValue="+minValue+" inc="+inc); |
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302 |
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303 String str=null; |
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304 String lastStr=null; |
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305 |
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306 //count number of labels to display |
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307 //added version 1.1 |
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308 java.util.ArrayList labels=new java.util.ArrayList(); |
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309 |
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310 for(int yaxis=0;yaxis<5;yaxis++) |
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311 { |
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312 |
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313 str=""+(int)label;//formatter.format(label); |
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314 int strLen=str.length(); |
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315 for(int i=strLen;i<7;i++){ |
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316 str=" "+str; |
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317 } |
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318 if(lastStr==null || lastStr.equals(str)==false){ |
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319 labels.add(str); |
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320 } |
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321 |
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322 lastStr=str; |
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323 |
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324 label-=inc; |
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325 } |
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326 int nLabels=labels.size(); |
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327 |
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328 for(int yaxis=0;yaxis<nLabels;yaxis++) |
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329 { |
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330 g.setColor( axisColor ); |
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331 str=labels.get(yaxis).toString(); |
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332 g.drawString( str,xoff-45,(int)y+6); |
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333 g.setColor( gridColor ); |
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334 if(yaxis<nLabels-1){ |
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335 g.drawLine(xoff-3,(int)y,xoff+wid,(int)y); |
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336 } |
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337 |
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338 y+=(hi/(nLabels-1.0)); |
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339 |
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340 } |
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341 |
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342 } |
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343 else |
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344 { |
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345 g.drawString("no data",legx,legy); |
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346 } |
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347 } |
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348 |
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349 //Private impl |
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350 synchronized private void calcFactors() |
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351 { |
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352 int tsize=0; |
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353 double maxdate=0; |
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354 double mindate=Double.MAX_VALUE; |
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355 //reset MaxValue |
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356 maxValue=0.0; |
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357 maxSize=0; |
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358 minValue=Double.MAX_VALUE; |
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359 int endpos; |
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360 int startpos; |
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361 //find the largest dataset, and max dates |
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362 for(int i=0;i<dsCounter;i++) |
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363 { |
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364 if(dataSet[i].isVisible) |
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365 { |
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366 tsize=dataSet[i].getSize(); |
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367 if(tsize>maxSize) |
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368 { |
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369 maxSize=tsize; |
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370 maxId=i; |
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371 } |
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372 endpos= tsize-1; |
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373 if(endAt!=-1 && endAt<tsize) |
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374 endpos=endAt; |
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375 |
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376 startpos=startAt; |
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377 if(startpos>=tsize) |
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378 startpos=endpos; |
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379 |
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380 int md=dataSet[ i ].date[ endpos ]; |
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381 int mind=dataSet[ i ].date[ startpos ]; |
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382 maxdate=md>maxdate?md:maxdate; |
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383 mindate=mind<mindate?mind:mindate; |
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384 } |
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385 } |
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386 if(endAt==-1)//first time |
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387 { |
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388 endAt=maxSize; |
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389 } |
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390 //allocate xTagPos here - NOT in paint() |
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391 xTagPosition= new int[maxSize]; |
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392 //calculate the factors |
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393 for( int i=0;i<dsCounter;i++) |
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394 { |
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395 if(dataSet[i].isVisible) |
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396 { |
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397 int npoints=dataSet[i].getSize(); |
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398 for(int j=startAt;j<npoints && j<=endAt;j++) |
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399 { |
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400 double date=dataSet[i].date[j]; |
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401 dataSet[i].pointFactor[j]= |
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402 (date-mindate)/(maxdate-mindate); |
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403 double val=dataSet[i].getPoint(j); |
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404 maxValue=maxValue>val ? maxValue : val; |
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405 minValue=val<minValue?val:minValue; |
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406 } |
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parents:
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407 } |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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408 } |
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409 maxValue=adjustMax(maxValue); |
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410 minValue=adjustMin(minValue); |
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411 |
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412 } |
8
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413 |
0
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414 private double adjustMax(double d) |
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415 { |
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416 double x=d; |
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417 if(x>0) |
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418 x+=0.05; |
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419 else |
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420 x-=0.05; |
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421 |
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422 return Math.rint(x*10)/10; |
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parents:
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423 } |
8
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424 |
0
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425 private double adjustMin(double d) |
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426 { |
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parents:
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427 double x=d; |
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428 x-=0.05; |
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429 return Math.rint(x*10)/10; |
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430 } |
8
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431 |
0
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432 //private impl classes internal double-dispatch |
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433 private interface IdDrawer |
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434 { |
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parents:
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435 public void draw(final Graphics g,final int xpos,final int ypos); |
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parents:
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436 } |
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437 |
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parents:
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438 private class SqDrawer |
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439 implements IdDrawer |
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parents:
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440 { |
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parents:
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441 private int drawMode; |
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442 |
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parents:
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443 public SqDrawer(final int mode) |
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444 { |
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parents:
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445 drawMode=mode; |
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parents:
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446 } |
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parents:
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447 public void draw(final Graphics g,final int xpos,final int ypos) |
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448 { |
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449 if(drawMode==SOLID) |
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450 g.fillRect(xpos+1,ypos,4,4); |
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451 else |
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parents:
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|
452 g.drawRect(xpos,ypos,4,4); |
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parents:
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453 } |
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Dan Creswell <dan.creswell@gmail.com>
parents:
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|
454 } |
8
77db38eb3042
Remove some dead code (Dave Brosius)
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parents:
6
diff
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|
455 |
0
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parents:
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|
456 private class RoundRectDrawer |
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457 implements IdDrawer |
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|
458 { |
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parents:
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|
459 private int drawMode; |
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|
460 |
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parents:
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|
461 public RoundRectDrawer(final int mode) |
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parents:
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462 { |
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parents:
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|
463 drawMode=mode; |
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|
464 } |
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parents:
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|
465 public void draw(final Graphics g,final int xpos,final int ypos) |
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466 { |
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parents:
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|
467 if(drawMode==SOLID) |
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|
468 g.fillRoundRect(xpos+1,ypos,4,4,4,4); |
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parents:
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469 else |
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parents:
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|
470 g.drawRoundRect(xpos+1,ypos,4,4,4,4); |
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parents:
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|
471 } |
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parents:
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changeset
|
472 } |
8
77db38eb3042
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parents:
6
diff
changeset
|
473 |
0
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parents:
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|
474 private class XDrawer |
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|
475 implements IdDrawer |
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parents:
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|
476 { |
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parents:
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|
477 public XDrawer() |
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478 { |
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|
479 } |
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|
480 public void draw(final Graphics g,final int xpos,final int ypos) |
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481 { |
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parents:
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482 int os=2; |
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parents:
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|
483 |
3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff
changeset
|
484 g.drawLine(xpos-2+os,ypos-2+os,xpos+2+os,ypos+2+os); |
3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff
changeset
|
485 g.drawLine(xpos+2+os,ypos-2+os,xpos-2+os,ypos+2+os); |
3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff
changeset
|
486 } |
3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff
changeset
|
487 } |
3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff
changeset
|
488 } |
3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff
changeset
|
489 |