Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/XMLChartTheme.java @ 364:2413273f1c13

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Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly. gnv-artifacts/trunk@439 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 16 Dec 2009 11:58:44 +0000
parents 22a6493e8460
children 3d13fa281a7e
rev   line source
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1 package de.intevation.gnv.chart;
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2
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3 import java.awt.Font;
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4 import java.awt.Color;
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5 import java.awt.geom.Ellipse2D;
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6 import java.lang.NumberFormatException;
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7
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8 import org.apache.log4j.Logger;
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9
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10 import org.jfree.chart.StandardChartTheme;
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11 import org.jfree.chart.plot.XYPlot;
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12 import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
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13 import org.jfree.ui.RectangleInsets;
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14 import org.jfree.util.UnitType;
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15
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16
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17 import org.w3c.dom.Document;
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18
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19 import de.intevation.artifactdatabase.Config;
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20
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21 /**
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22 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
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23 */
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24 public class XMLChartTheme
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25 extends StandardChartTheme
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26 {
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27 private static final Color DEFAULT_COLOR = Color.BLACK;
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28
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29 private Logger log = Logger.getLogger(XMLChartTheme.class);
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30
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31 protected boolean domainCrosshairVisible;
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32 protected boolean rangeCrosshairVisible;
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33 protected boolean renderLines;
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34 protected boolean renderShapes;
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35
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36 protected int pointWidth;
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37 protected int pointHeight;
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39
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40 public XMLChartTheme(String name) {
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41 super(name);
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42 }
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44
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45 public void setDomainCrosshairVisible(boolean visible) {
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46 this.domainCrosshairVisible = visible;
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47 }
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50 public boolean getDomainCrosshairVisible() {
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51 return domainCrosshairVisible;
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52 }
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54
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55 public boolean getRangeCrosshairVisible() {
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56 return rangeCrosshairVisible;
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57 }
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59
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60 public void setRangeCrosshairVisible(boolean visible) {
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61 this.rangeCrosshairVisible = visible;
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62 }
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64
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65 public void applyXMLConfiguration(Document document) {
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66 log.debug("create XMLChartTheme");
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67
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68 init(document);
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69 }
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71
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72 private void init(Document document) {
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73 log.debug("init XMLChartTheme parameters");
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74
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75 initChartParameters(document);
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76 initTitleParameters(document);
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77 initSubtitleParameters(document);
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78 initPlotParameters(document);
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79 initAxisParameters(document);
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80 initLegendParameters(document);
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81 initRenderer(document);
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82 }
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84
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85 private void initTitleParameters(Document document) {
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86 log.debug("init title parameters.");
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87
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88 int size = getInt(document, "theme/title/font/size/@value");
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89 String type = getString(document, "theme/title/font/type/@value");
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90 boolean bold = getBool(document, "theme/title/font/bold/@value");
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91
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92 setExtraLargeFont(createFont(type, size, bold));
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93
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94 String color = getString(document, "theme/title/font/color/@value");
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95 Color c = decodeColor(color);
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96 if (c != null)
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97 setTitlePaint(c);
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98 }
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100
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101 private void initSubtitleParameters(Document document) {
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102 log.debug("init title parameters.");
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103
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104 int size = getInt(document, "theme/subtitle/font/size/@value");
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105 String type = getString(document, "theme/subtitle/font/type/@value");
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106 boolean bold = getBool(document, "theme/subtitle/font/bold/@value");
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107
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108 setLargeFont(createFont(type, size, bold));
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109
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110 String col = getString(document, "theme/subtitle/font/color/@value");
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111 setSubtitlePaint(Color.decode(col));
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112 }
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115 private void initChartParameters(Document document) {
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116 log.debug("init chart parameters.");
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117
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118 String bg = getString(document, "theme/chart/background/color/@value");
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119 Color c = decodeColor(bg);
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120 if (c != null)
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121 setChartBackgroundPaint(c);
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122 }
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123
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124
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125 private void initPlotParameters(Document document) {
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126 log.debug("init plot parameters.");
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127
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128 String tmp = null;
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129 tmp = getString(document, "theme/plot/background/color/@value");
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130 Color c = decodeColor(tmp);
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131 if (c != null)
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132 setPlotBackgroundPaint(c);
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133
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134 tmp = getString(document, "theme/plot/outline/color/@value");
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135 c = decodeColor(tmp);
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136 if (c != null)
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137 setPlotOutlinePaint(c);
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138
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139 tmp = getString(document, "theme/plot/domaingridline/color/@value");
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140 c = decodeColor(tmp);
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141 if (c != null)
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142 setDomainGridlinePaint(c);
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143
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144 tmp = getString(document, "theme/plot/rangegridline/color/@value");
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145 c = decodeColor(tmp);
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146 if (c != null)
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147 setRangeGridlinePaint(c);
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148
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149 boolean rangeCrosshairVisible = getBool(
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150 document, "theme/plot/rangecrosshair/visible/@value");
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151 setRangeCrosshairVisible(rangeCrosshairVisible);
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152
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153 boolean domainCrosshairVisible = getBool(
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154 document, "theme/plot/domaincrosshair/visible/@value");
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155 setDomainCrosshairVisible(domainCrosshairVisible);
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156
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157 int top = getInt(document, "theme/plot/offset/top/@value");
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158 int bottom = getInt(document, "theme/plot/offset/bottom/@value");
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159 int left = getInt(document, "theme/plot/offset/left/@value");
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160 int right = getInt(document, "theme/plot/offset/right/@value");
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161 setAxisOffset(new RectangleInsets(
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162 UnitType.RELATIVE,
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163 top, left, bottom, right)
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164 );
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165 }
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166
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167
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168 private void initAxisParameters(Document document) {
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169 log.debug("init axis parameters.");
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170
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171 String tmp = null;
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172 tmp = getString(document, "theme/axis/label/color/@value");
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173 Color c = decodeColor(tmp);
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174 if (c != null)
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175 setAxisLabelPaint(c);
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176
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177 tmp = getString(document, "theme/axis/ticklabel/color/@value");
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178 c = decodeColor(tmp);
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179 if (c != null)
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180 setTickLabelPaint(c);
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181 }
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182
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183
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184 private void initLegendParameters(Document document) {
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185 log.debug("init legend parameters.");
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186
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187 String tmp = null;
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188 tmp = getString(document, "theme/legend/font/color/@value");
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189 Color c = decodeColor(tmp);
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190 if (c != null)
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191 setLegendItemPaint(c);
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192
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193 tmp = getString(document, "theme/legend/background/color/@value");
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194 c = decodeColor(tmp);
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195 if (c != null)
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196 setLegendBackgroundPaint(c);
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197 }
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198
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199
327
22a6493e8460 New options in chart template: visibility of lines and points in charts and point's size.
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200 private void initRenderer(Document document) {
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201 log.debug("init renderer parameters.");
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202
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203 pointWidth = getInt(document, "theme/plot/itemrenderer/width/@value");
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204 log.debug("Read point width of " + pointWidth);
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205 pointHeight = getInt(document, "theme/plot/itemrenderer/height/@value");
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206 log.debug("Read point height of " + pointHeight);
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diff changeset
207 renderLines = getBool(
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208 document, "theme/plot/itemrenderer/renderLines/@value"
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209 );
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diff changeset
210 renderShapes = getBool(
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diff changeset
211 document, "theme/plot/itemrenderer/renderPoints/@value"
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diff changeset
212 );
22a6493e8460 New options in chart template: visibility of lines and points in charts and point's size.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
213 }
22a6493e8460 New options in chart template: visibility of lines and points in charts and point's size.
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diff changeset
214
22a6493e8460 New options in chart template: visibility of lines and points in charts and point's size.
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215
304
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216 private static String getString(Document document, String xpath) {
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217 return Config.getStringXPath(document, xpath);
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218 }
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219
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220
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221 private static int getInt(Document document, String xpath) {
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222 String tmp = getString(document, xpath);
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223
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224 if (tmp != null)
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225 return Integer.parseInt(tmp);
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226 else
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227 return 0;
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228 }
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229
a16d337c5678 The style of charts can be configured with ChartThemes using XML configuration files.
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230
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231 private static boolean getBool(Document document, String xpath) {
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232 String tmp = getString(document, xpath);
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233
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234 if (tmp != null)
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235 return Boolean.parseBoolean(tmp);
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236 else
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237 return false;
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238 }
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239
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240
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241 protected Color decodeColor(String color) {
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242 try {
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243 if (color == null)
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244 return null;
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245
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246 return Color.decode(color);
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247 }
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248 catch (NumberFormatException nfe) {
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249 log.warn("Error while parsing color: " + color, nfe);
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250 }
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251
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252 return null;
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253 }
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254
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255
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256 protected Font createFont(String type, int size, boolean bold) {
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257 Font font = null;
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258 if (bold)
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259 font = new Font(type, Font.BOLD, size);
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260 else
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261 font = new Font(type, Font.PLAIN, size);
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262
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263 return font;
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264 }
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265
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266
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267 protected void applyToXYPlot(XYPlot plot) {
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268 log.debug("apply theme parameter to XYPlot");
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269
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270 super.applyToXYPlot(plot);
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271 plot.setDomainCrosshairVisible(this.domainCrosshairVisible);
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272 plot.setRangeCrosshairVisible(this.rangeCrosshairVisible);
327
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273
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274 applyToXYLineAndShapeRenderer(plot);
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275 }
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276
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277
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278 protected void applyToXYLineAndShapeRenderer(XYPlot plot) {
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279 if (plot == null)
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280 return;
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281
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282 XYLineAndShapeRenderer renderer =
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283 (XYLineAndShapeRenderer) plot.getRenderer();
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284
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285 Ellipse2D.Double point = new Ellipse2D.Double(
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286 -(pointWidth/2), -(pointHeight/2), pointWidth, pointHeight
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287 );
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288
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289 renderer.setSeriesShape(0, point);
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290 renderer.setSeriesShapesVisible(0, renderShapes);
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291 renderer.setSeriesLinesVisible(0, renderLines);
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292
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293 plot.setRenderer(renderer);
304
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294 }
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295 }
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