Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/XMLChartTheme.java @ 327:22a6493e8460

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New options in chart template: visibility of lines and points in charts and point's size. gnv-artifacts/trunk@393 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 02 Dec 2009 10:50:12 +0000
parents a16d337c5678
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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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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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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49
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50 public boolean getDomainCrosshairVisible() {
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51 return domainCrosshairVisible;
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52 }
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55 public boolean getRangeCrosshairVisible() {
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56 return rangeCrosshairVisible;
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57 }
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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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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.
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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) {
a16d337c5678 The style of charts can be configured with ChartThemes using XML configuration files.
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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
a16d337c5678 The style of charts can be configured with ChartThemes using XML configuration files.
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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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