Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/jfree/StickyAxisAnnotation.java @ 1754:8e6615ad60b8

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Added some simple caching for themes. Only used in sticky annotations by now. flys-artifacts/trunk@3057 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Fri, 21 Oct 2011 15:19:49 +0000
parents 741ba9e34c7d
children c51089a84d13
rev   line source
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1 package de.intevation.flys.jfree;
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2
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3 import org.apache.log4j.Logger;
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4
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5 import java.util.Iterator;
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6
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7 import java.awt.Shape;
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8 import java.awt.geom.Rectangle2D;
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9 import java.awt.geom.Line2D;
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10 import java.awt.Color;
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11 import java.awt.Font;
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12 import java.awt.BasicStroke;
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13
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14 import org.jfree.chart.annotations.XYTextAnnotation;
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15 import org.jfree.chart.axis.ValueAxis;
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16 import org.jfree.chart.util.LineUtilities;
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17 import org.jfree.chart.plot.PlotOrientation;
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18 import org.jfree.chart.plot.XYPlot;
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19 import org.jfree.chart.entity.XYAnnotationEntity;
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20 import org.jfree.chart.plot.PlotRenderingInfo;
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21 import org.jfree.chart.ChartRenderingInfo;
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22 import org.jfree.chart.plot.Plot;
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23
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24 import org.jfree.data.Range;
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25
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26 import org.jfree.text.TextUtilities;
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27
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28 import org.jfree.ui.RectangleEdge;
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29 import org.jfree.ui.TextAnchor;
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30
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31 import de.intevation.flys.utils.ThemeAccess;
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32
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33 /**
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34 * Custom Annotations class that is drawn only if no collisions with other
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35 * already drawn CustomAnnotations in current plot are found.
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36 * Draws a given text and a line to it from either axis.
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37 */
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38 public class StickyAxisAnnotation extends XYTextAnnotation {
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39
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40 /** Logger for this class. */
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41 private static Logger logger =
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42 Logger.getLogger(StickyAxisAnnotation.class);
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43
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44 /** Simplified view on axes. */
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45 public static enum SimpleAxis {
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46 X_AXIS, /** Usually "horizontal". */
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47 Y_AXIS /** Usually "vertical". */
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48 }
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49
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50 /** Which axis to stick to. */
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51 protected SimpleAxis stickyAxis = SimpleAxis.X_AXIS;
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52
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53 /** The 1-dimensional position of this annotation. */
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54 protected float pos;
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55
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56 /** Theme attributes. */
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57 protected Color textColor;
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58 protected Color lineColor;
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59 protected Font font;
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60 protected int lineWidth;
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61 protected String textOrientation = "vertical";
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62 protected Color textBackground;
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63 protected boolean showBackground;
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64
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65
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66 /**
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67 * Trivial constructor.
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68 *
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69 * @param text Text to display.
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70 * @param x X-position in dataspace (typical horizontal, in km).
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71 * @param y Y-position in dataspace (typical vertical, in m).
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72 * @deprecated
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73 */
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74 public StickyAxisAnnotation(String text, float x, float y) {
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75 super(text, x, y);
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76 setStickyAxis(SimpleAxis.X_AXIS);
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77 }
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78
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79
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80 /**
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81 * Constructor with implicit sticky x-axis.
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82 * @param text the text to display.
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83 * @param pos the position at which to draw the text and mark.
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84 */
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85 public StickyAxisAnnotation(String text, float pos) {
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86 this(text, pos, pos, SimpleAxis.X_AXIS);
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87 }
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88
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89
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90 /**
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91 * Constructor with given explicit axis.
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92 * @param text the text to display.
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93 * @param pos the position at which to draw the text and mark.
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94 * @param stickyAxis the axis at which to stick (and to which 'pos' is
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95 * relative).
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96 */
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97 public StickyAxisAnnotation(String text, float pos, SimpleAxis stickAxis) {
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98 super(text, pos, pos);
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99 setStickyAxis(stickAxis);
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100 this.pos = pos;
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101 }
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102
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103 /**
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104 * Legacy-Constructor.
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105 * @deprecated
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106 */
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107 public StickyAxisAnnotation(String text, float x, float y,
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108 SimpleAxis stickAxis) {
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109 super(text, x, y);
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110 setStickyAxis(stickAxis);
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111 this.pos = x;
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112 }
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113
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114
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115 /**
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116 * Sets the "sticky axis" (whether to draw annotations at the
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117 * X- or the Y-Axis.
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118 *
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119 * @param stickyAxis axis to stick to.
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120 */
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121 public void setStickyAxis(SimpleAxis stickyAxis) {
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122 this.stickyAxis = stickyAxis;
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123 if (stickyAxis == SimpleAxis.X_AXIS){
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124 float o = 270f;
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125 if(textOrientation.equals("horizontal")) {
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126 o = 0f;
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127 }
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128 this.setRotationAngle(o * (Math.PI / 180f));
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129 this.setRotationAnchor(TextAnchor.CENTER_LEFT);
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130 this.setTextAnchor(TextAnchor.CENTER_LEFT);
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131 } else {
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132 this.setRotationAngle(0f * (Math.PI / 180f));
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133 this.setRotationAnchor(TextAnchor.CENTER_LEFT);
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134 this.setTextAnchor(TextAnchor.CENTER_LEFT);
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135 }
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136 }
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137
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138
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139 /**
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140 * Draws a small line at axis where this annotation resides.
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141 *
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142 * @param g2 the graphics device.
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143 * @param dataArea the data area.
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144 * @param domainAxis the domain axis.
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145 * @param rangeAxis the range axis.
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146 * @param domainEdge the domain edge.
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147 * @param rangeEdge the range edge.
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148 * @param orientation the plot orientation.
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149 */
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150 protected void drawAxisMark(
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151 java.awt.Graphics2D g2,
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152 java.awt.geom.Rectangle2D dataArea,
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153 ValueAxis domainAxis,
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154 ValueAxis rangeAxis,
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155 RectangleEdge domainEdge,
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156 RectangleEdge rangeEdge,
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157 PlotOrientation orientation) {
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158 float j2DX1 = 0.0f;
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159 float j2DX2 = 0.0f;
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160 float j2DY1 = 0.0f;
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161 float j2DY2 = 0.0f;
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162 float x = (float) getX();
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163 float y = (float) getY();
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164 /* When dependent on X/Y-Axis and orientation, following
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165 can be used as a base:
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166 if (orientation == PlotOrientation.VERTICAL) {
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167 j2DX1 = (float) domainAxis.valueToJava2D(x, dataArea,
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168 domainEdge);
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169 j2DY1 = (float) rangeAxis.valueToJava2D(y, dataArea,
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170 rangeEdge);
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171 j2DX2 = (float) domainAxis.valueToJava2D(x, dataArea,
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172 domainEdge);
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173 j2DY2 = (float) rangeAxis.valueToJava2D(y, dataArea,
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174 rangeEdge);
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175 }
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176 else if (orientation == PlotOrientation.HORIZONTAL) {
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177 j2DY1 = (float) domainAxis.valueToJava2D(x, dataArea,
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178 domainEdge);
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179 j2DX1 = (float) rangeAxis.valueToJava2D(y, dataArea,
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180 rangeEdge);
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181 j2DY2 = (float) domainAxis.valueToJava2D(x, dataArea,
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182 domainEdge);
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183 j2DX2 = (float) rangeAxis.valueToJava2D(y, dataArea,
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184 rangeEdge);
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185 }
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186
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187 g2.setPaint(this.paint);
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188 g2.setStroke(this.stroke);
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189 */
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190 if (this.stickyAxis == SimpleAxis.X_AXIS) {
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191 j2DY1 = (float) RectangleEdge.coordinate(dataArea, domainEdge);
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192 double rangeLow = rangeAxis.getRange().getLowerBound();
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193 // Line ends at 1.5% of full distance.
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194 j2DY2 = (float) rangeAxis.valueToJava2D(
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195 (1f - 0.015f) * rangeLow + 0.015f *
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196 rangeAxis.getRange().getUpperBound(),
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197 dataArea, rangeEdge);
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198 j2DX1 = (float) domainAxis.valueToJava2D(x, dataArea, domainEdge);
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199 j2DX2 = j2DX1;
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200 } else {
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201 j2DX1 = (float) RectangleEdge.coordinate(dataArea, rangeEdge);
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202 Range domainRange = domainAxis.getRange();
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203 double rangeLow = domainRange.getLowerBound();
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204 // Line ends at 1.5% of full distance.
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205 j2DX2 = (float) domainAxis.valueToJava2D(
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206 (1f - 0.015f) * rangeLow + 0.015f *
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207 domainRange.getUpperBound(),
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208 dataArea, domainEdge);
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209 j2DY1 = (float) rangeAxis.valueToJava2D(pos, dataArea, rangeEdge);
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210 j2DY2 = j2DY1;
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211 }
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212
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213 Line2D line = new Line2D.Float(j2DX1, j2DY1, j2DX2, j2DY2);
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214
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215 // line is clipped to avoid JRE bug 6574155, for more info
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216 // see JFreeChart bug 2221495
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217 boolean visible = LineUtilities.clipLine(line, dataArea);
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218 if (visible) {
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219 g2.draw(line);
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220 }
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221 }
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222
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223
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224 /**
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225 * Draw the Annotiation if it does not collide with other already drawn
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226 * Annotations.
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227 *
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228 * @param g2 the graphics device.
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229 * @param plot the plot.
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230 * @param dataArea the data area.
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231 * @param domainAxis the domain axis.
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232 * @param rangeAxis the range axis.
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233 * @param rendererIndex the render index.
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234 * @param info state information, escpecially collects info about
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235 * already drawn shapes (and thus annotations), used
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236 * for collision detection.
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237 */
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238 @Override
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239 public void draw(
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240 java.awt.Graphics2D g2,
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241 XYPlot plot,
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242 java.awt.geom.Rectangle2D dataArea,
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243 ValueAxis domainAxis,
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244 ValueAxis rangeAxis,
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245 int rendererIndex,
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246 PlotRenderingInfo info) {
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247
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248 if (info == null)
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249 return;
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250
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251 if (domainAxis == null || rangeAxis == null
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252 || domainAxis.getRange() == null
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253 || rangeAxis.getRange() == null
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254 ) {
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255 logger.error("Annotation cannot be drawn (missing axis).");
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256 return;
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257 }
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258
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259 // Calculate the bounding box.
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260 ChartRenderingInfo chartInfo = info.getOwner();
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261
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262 PlotOrientation orientation = plot.getOrientation();
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diff changeset
263 RectangleEdge domainEdge = Plot.resolveDomainAxisLocation(
cf39205df113 Part of refactoring (see next commit).
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264 plot.getDomainAxisLocation(), orientation);
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265 RectangleEdge rangeEdge = Plot.resolveRangeAxisLocation(
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266 plot.getRangeAxisLocation(), orientation);
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07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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267 float anchorX = 0f;
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268 float anchorY = 0.0f;
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269 if (this.stickyAxis == SimpleAxis.X_AXIS) {
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270 // Text starts at 1.5% of full distance.
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271 float rangeLow = (float) rangeAxis.getRange().getLowerBound();
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272 float y = rangeLow + 0.02f * ((float)
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273 rangeAxis.getRange().getUpperBound() - rangeLow);
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parents: 1082
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274 setY(y);
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275
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276 anchorX = (float) domainAxis.valueToJava2D(
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277 getX(), dataArea, domainEdge);
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278 anchorY = (float) rangeAxis.valueToJava2D(
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parents: 1082
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279 getY(), dataArea, rangeEdge);
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parents: 1082
diff changeset
280 } else {
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281 float rangeLow = (float) domainAxis.getRange().getLowerBound();
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parents: 1082
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282 float x = rangeLow + 0.02f * ((float)
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parents: 1082
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283 domainAxis.getRange().getUpperBound() - rangeLow);
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
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284 setX(x);
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parents: 1082
diff changeset
285 anchorX = (float) domainAxis.valueToJava2D(
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
diff changeset
286 getX(), dataArea, domainEdge);
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
diff changeset
287 anchorY = (float) rangeAxis.valueToJava2D(
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
diff changeset
288 getY(), dataArea, rangeEdge);
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parents: 1082
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289 }
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cf39205df113 Part of refactoring (see next commit).
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parents:
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290 if (orientation == PlotOrientation.HORIZONTAL) {
cf39205df113 Part of refactoring (see next commit).
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291 float tempAnchor = anchorX;
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292 anchorX = anchorY;
cf39205df113 Part of refactoring (see next commit).
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293 anchorY = tempAnchor;
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294 }
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295
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27b8836abec9 Draw the text background and use orientation attribute.
Raimund Renkert <raimund.renkert@intevation.de>
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296 //Call to apply orientation.
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297 setStickyAxis(stickyAxis);
1039
cf39205df113 Part of refactoring (see next commit).
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298
cf39205df113 Part of refactoring (see next commit).
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299 Shape hotspot = TextUtilities.calculateRotatedStringBounds(
cf39205df113 Part of refactoring (see next commit).
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diff changeset
300 getText(), g2, anchorX, anchorY, getTextAnchor(),
cf39205df113 Part of refactoring (see next commit).
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301 getRotationAngle(), getRotationAnchor());
cf39205df113 Part of refactoring (see next commit).
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302 Rectangle2D hotspotBox = hotspot.getBounds2D();
cf39205df113 Part of refactoring (see next commit).
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parents:
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303 // Check for collisions with other XYAnnotations.
cf39205df113 Part of refactoring (see next commit).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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diff changeset
304 for (Iterator i = chartInfo.getEntityCollection().iterator();
cf39205df113 Part of refactoring (see next commit).
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diff changeset
305 i.hasNext(); ) {
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306 Object next = i.next();
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307 // Collision with other stuff than XYAnnotations are okay.
cf39205df113 Part of refactoring (see next commit).
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diff changeset
308 if (next instanceof XYAnnotationEntity) {
cf39205df113 Part of refactoring (see next commit).
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309 XYAnnotationEntity drawnShape = (XYAnnotationEntity) next;
cf39205df113 Part of refactoring (see next commit).
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diff changeset
310 if (drawnShape.getArea().intersects(hotspotBox)) {
cf39205df113 Part of refactoring (see next commit).
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diff changeset
311 // Found collision, early stop.
cf39205df113 Part of refactoring (see next commit).
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diff changeset
312 return;
cf39205df113 Part of refactoring (see next commit).
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313 }
cf39205df113 Part of refactoring (see next commit).
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314 }
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315 }
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316
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317 // Draw the background.
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318 if (showBackground) {
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diff changeset
319 g2.setStroke(new BasicStroke ((float) 1));
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320 g2.setBackground(textBackground);
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Raimund Renkert <raimund.renkert@intevation.de>
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321 g2.setPaint(textBackground);
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diff changeset
322 hotspot = TextUtilities.calculateRotatedStringBounds(
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parents: 1738
diff changeset
323 getText(), g2, anchorX, anchorY, getTextAnchor(),
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parents: 1738
diff changeset
324 getRotationAngle(), getRotationAnchor());
1039
cf39205df113 Part of refactoring (see next commit).
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diff changeset
325 g2.fill(hotspot);
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27b8836abec9 Draw the text background and use orientation attribute.
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326 g2.draw(hotspot);
1039
cf39205df113 Part of refactoring (see next commit).
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diff changeset
327 }
1751
27b8836abec9 Draw the text background and use orientation attribute.
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parents: 1738
diff changeset
328
27b8836abec9 Draw the text background and use orientation attribute.
Raimund Renkert <raimund.renkert@intevation.de>
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diff changeset
329 // Always draw the small line at axis.
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330 setOutlineStroke(new BasicStroke((float) lineWidth));
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parents: 1738
diff changeset
331 g2.setStroke(getOutlineStroke());
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
diff changeset
332 g2.setPaint(lineColor);
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
diff changeset
333 drawAxisMark(g2, dataArea, domainAxis, rangeAxis, domainEdge,
27b8836abec9 Draw the text background and use orientation attribute.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
diff changeset
334 rangeEdge, orientation);
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
diff changeset
335
27b8836abec9 Draw the text background and use orientation attribute.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
diff changeset
336 // Draw the text.
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Raimund Renkert <raimund.renkert@intevation.de>
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diff changeset
337 g2.setPaint(textColor);
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
diff changeset
338 g2.setFont(font);
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cf39205df113 Part of refactoring (see next commit).
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parents:
diff changeset
339 TextUtilities.drawRotatedString(getText(), g2, anchorX, anchorY,
cf39205df113 Part of refactoring (see next commit).
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parents:
diff changeset
340 getTextAnchor(), getRotationAngle(), getRotationAnchor());
cf39205df113 Part of refactoring (see next commit).
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parents:
diff changeset
341
cf39205df113 Part of refactoring (see next commit).
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parents:
diff changeset
342 // Add info that we have drawn this Annotation.
cf39205df113 Part of refactoring (see next commit).
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parents:
diff changeset
343 addEntity(info, hotspot, rendererIndex, getToolTipText(), getURL());
cf39205df113 Part of refactoring (see next commit).
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parents:
diff changeset
344 }
1738
6cdc7a77d3d4 Apply theme attributes to axis annotation.
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parents: 1711
diff changeset
345
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diff changeset
346
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8e6615ad60b8 Added some simple caching for themes. Only used in sticky annotations by now.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1753
diff changeset
347 public void applyTheme(ThemeAccess ta) {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1753
diff changeset
348 lineWidth = ta.parseLineWidth();
8e6615ad60b8 Added some simple caching for themes. Only used in sticky annotations by now.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1753
diff changeset
349 lineColor = ta.parseLineColorField();
8e6615ad60b8 Added some simple caching for themes. Only used in sticky annotations by now.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1753
diff changeset
350 textColor = ta.parseTextColor();
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1753
diff changeset
351 font = ta.parseTextFont();
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1753
diff changeset
352 textOrientation = ta.parseTextOrientation();
8e6615ad60b8 Added some simple caching for themes. Only used in sticky annotations by now.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1753
diff changeset
353 textBackground = ta.parseTextBackground();
8e6615ad60b8 Added some simple caching for themes. Only used in sticky annotations by now.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1753
diff changeset
354 showBackground = ta.parseShowTextBackground();
1738
6cdc7a77d3d4 Apply theme attributes to axis annotation.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1711
diff changeset
355 }
1039
cf39205df113 Part of refactoring (see next commit).
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parents:
diff changeset
356 }
1711
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1167
diff changeset
357 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org