Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/jfree/StickyAxisAnnotation.java @ 2008:8971276d32bc

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Register area artifact factory. flys-artifacts/trunk@3450 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Fri, 16 Dec 2011 14:55:29 +0000
parents 59622ba800c8
children c68f4f227c09
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. A mark on
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36 * the axis is shown in all cases, though.
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37 * Draws a given text and a line to it from either axis.
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38 */
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39 public class StickyAxisAnnotation extends XYTextAnnotation {
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40
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41 /** Logger for this class. */
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42 private static Logger logger =
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43 Logger.getLogger(StickyAxisAnnotation.class);
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44
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45 /** Simplified view on axes. */
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46 public static enum SimpleAxis {
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47 X_AXIS, /** Usually "horizontal". */
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48 Y_AXIS /** Usually "vertical". */
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49 }
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50
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51 /** Which axis to stick to. */
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52 protected SimpleAxis stickyAxis = SimpleAxis.X_AXIS;
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53
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54 /** The 1-dimensional position of this annotation. */
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55 protected float pos;
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56
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57 /** Theme attributes. */
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58 protected Color textColor;
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59 protected Color lineColor;
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60 protected Font font;
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61 protected int lineWidth;
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62 protected String textOrientation = "vertical";
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63 protected Color textBackground;
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64 protected boolean showBackground;
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65
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66
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67 /**
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68 * Trivial constructor.
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69 *
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70 * @param text Text to display.
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71 * @param x X-position in dataspace (typical horizontal, in km).
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72 * @param y Y-position in dataspace (typical vertical, in m).
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73 * @deprecated
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74 */
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75 public StickyAxisAnnotation(String text, float x, float y) {
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76 super(text, x, y);
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77 setStickyAxis(SimpleAxis.X_AXIS);
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78 }
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79
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80
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81 /**
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82 * Constructor with implicit sticky x-axis.
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83 * @param text the text to display.
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84 * @param pos the position at which to draw the text and mark.
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85 */
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86 public StickyAxisAnnotation(String text, float pos) {
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87 this(text, pos, pos, SimpleAxis.X_AXIS);
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88 }
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89
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90
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91 /**
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92 * Constructor with given explicit axis.
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93 * @param text the text to display.
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94 * @param pos the position at which to draw the text and mark.
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95 * @param stickyAxis the axis at which to stick (and to which 'pos' is
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96 * relative).
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97 */
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98 public StickyAxisAnnotation(String text, float pos, SimpleAxis stickAxis) {
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99 super(text, pos, pos);
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100 setStickyAxis(stickAxis);
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101 this.pos = pos;
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102 }
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103
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104
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105 /**
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106 * Legacy-Constructor.
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107 * @deprecated
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108 */
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109 public StickyAxisAnnotation(String text, float x, float y,
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110 SimpleAxis stickAxis) {
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111 super(text, x, y);
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112 setStickyAxis(stickAxis);
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113 this.pos = x;
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114 }
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115
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116
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117 /**
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118 * Sets the "sticky axis" (whether to draw annotations at the
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119 * X- or the Y-Axis.
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120 *
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121 * @param stickyAxis axis to stick to.
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122 */
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123 public void setStickyAxis(SimpleAxis stickyAxis) {
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124 this.stickyAxis = stickyAxis;
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125 if (stickyAxis == SimpleAxis.X_AXIS){
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126 float o = 270f;
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127 if(textOrientation.equals("horizontal")) {
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128 o = 0f;
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129 }
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130 this.setRotationAngle(o * (Math.PI / 180f));
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131 this.setRotationAnchor(TextAnchor.CENTER_LEFT);
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132 this.setTextAnchor(TextAnchor.CENTER_LEFT);
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133 } else {
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134 this.setRotationAngle(0f * (Math.PI / 180f));
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135 this.setRotationAnchor(TextAnchor.CENTER_LEFT);
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136 this.setTextAnchor(TextAnchor.CENTER_LEFT);
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137 }
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138 }
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139
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140
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141 /**
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142 * Draws a small line at axis where this annotation resides.
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143 *
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144 * @param g2 the graphics device.
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145 * @param dataArea the data area.
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146 * @param domainAxis the domain axis.
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147 * @param rangeAxis the range axis.
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148 * @param domainEdge the domain edge.
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149 * @param rangeEdge the range edge.
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150 * @param orientation the plot orientation.
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151 */
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152 protected void drawAxisMark(
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153 java.awt.Graphics2D g2,
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154 java.awt.geom.Rectangle2D dataArea,
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155 ValueAxis domainAxis,
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156 ValueAxis rangeAxis,
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157 RectangleEdge domainEdge,
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158 RectangleEdge rangeEdge,
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159 PlotOrientation orientation) {
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160 float j2DX1 = 0.0f;
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161 float j2DX2 = 0.0f;
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162 float j2DY1 = 0.0f;
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163 float j2DY2 = 0.0f;
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164 float x = (float) getX();
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165 float y = (float) getY();
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166 /* When dependent on X/Y-Axis and orientation, following
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167 can be used as a base:
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168 if (orientation == PlotOrientation.VERTICAL) {
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169 j2DX1 = (float) domainAxis.valueToJava2D(x, dataArea,
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170 domainEdge);
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171 j2DY1 = (float) rangeAxis.valueToJava2D(y, dataArea,
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172 rangeEdge);
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173 j2DX2 = (float) domainAxis.valueToJava2D(x, dataArea,
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174 domainEdge);
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175 j2DY2 = (float) rangeAxis.valueToJava2D(y, dataArea,
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176 rangeEdge);
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177 }
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178 else if (orientation == PlotOrientation.HORIZONTAL) {
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179 j2DY1 = (float) domainAxis.valueToJava2D(x, dataArea,
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180 domainEdge);
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181 j2DX1 = (float) rangeAxis.valueToJava2D(y, dataArea,
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182 rangeEdge);
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183 j2DY2 = (float) domainAxis.valueToJava2D(x, dataArea,
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184 domainEdge);
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185 j2DX2 = (float) rangeAxis.valueToJava2D(y, dataArea,
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186 rangeEdge);
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187 }
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188
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189 g2.setPaint(this.paint);
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190 g2.setStroke(this.stroke);
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191 */
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192 if (this.stickyAxis == SimpleAxis.X_AXIS) {
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193 j2DY1 = (float) RectangleEdge.coordinate(dataArea, domainEdge);
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194 double rangeLow = rangeAxis.getRange().getLowerBound();
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195 // Line ends at 1.5% of full distance.
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196 j2DY2 = (float) rangeAxis.valueToJava2D(
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197 (1f - 0.015f) * rangeLow + 0.015f *
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198 rangeAxis.getRange().getUpperBound(),
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199 dataArea, rangeEdge);
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200 j2DX1 = (float) domainAxis.valueToJava2D(x, dataArea, domainEdge);
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201 j2DX2 = j2DX1;
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202 } else {
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203 j2DX1 = (float) RectangleEdge.coordinate(dataArea, rangeEdge);
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204 Range domainRange = domainAxis.getRange();
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205 double rangeLow = domainRange.getLowerBound();
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206 // Line ends at 1.5% of full distance.
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207 j2DX2 = (float) domainAxis.valueToJava2D(
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208 (1f - 0.015f) * rangeLow + 0.015f *
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209 domainRange.getUpperBound(),
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210 dataArea, domainEdge);
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211 j2DY1 = (float) rangeAxis.valueToJava2D(pos, dataArea, rangeEdge);
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212 j2DY2 = j2DY1;
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213 }
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214
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215 Line2D line = new Line2D.Float(j2DX1, j2DY1, j2DX2, j2DY2);
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216
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217 // line is clipped to avoid JRE bug 6574155, for more info
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218 // see JFreeChart bug 2221495
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219 boolean visible = LineUtilities.clipLine(line, dataArea);
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220 if (visible) {
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221 setOutlineStroke(new BasicStroke((float) lineWidth));
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222 g2.setStroke(getOutlineStroke());
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223 g2.setPaint(lineColor);
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224 g2.draw(line);
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225 }
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226 }
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227
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228
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229 /**
1962
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230 * Draw the Annotation; the text only if it does not collide with other
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231 * already drawn Annotations- texts.
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232 *
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233 * @param g2 the graphics device.
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234 * @param plot the plot.
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235 * @param dataArea the data area.
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236 * @param domainAxis the domain axis.
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237 * @param rangeAxis the range axis.
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238 * @param rendererIndex the render index.
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239 * @param info state information, escpecially collects info about
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240 * already drawn shapes (and thus annotations), used
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241 * for collision detection.
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242 */
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243 @Override
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244 public void draw(
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245 java.awt.Graphics2D g2,
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246 XYPlot plot,
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247 java.awt.geom.Rectangle2D dataArea,
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248 ValueAxis domainAxis,
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249 ValueAxis rangeAxis,
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250 int rendererIndex,
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251 PlotRenderingInfo info) {
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252
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253 if (info == null)
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254 return;
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255
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256 if (domainAxis == null || rangeAxis == null
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257 || domainAxis.getRange() == null
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258 || rangeAxis.getRange() == null
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259 ) {
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260 logger.error("Annotation cannot be drawn (missing axis).");
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261 return;
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262 }
f1c9bfb07ba7 Fix crash when StickyAxisAnnotation should be drawn without proper axis
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1156
diff changeset
263
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cf39205df113 Part of refactoring (see next commit).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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264 // Calculate the bounding box.
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265 ChartRenderingInfo chartInfo = info.getOwner();
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266
cf39205df113 Part of refactoring (see next commit).
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267 PlotOrientation orientation = plot.getOrientation();
cf39205df113 Part of refactoring (see next commit).
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268 RectangleEdge domainEdge = Plot.resolveDomainAxisLocation(
cf39205df113 Part of refactoring (see next commit).
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269 plot.getDomainAxisLocation(), orientation);
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270 RectangleEdge rangeEdge = Plot.resolveRangeAxisLocation(
cf39205df113 Part of refactoring (see next commit).
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271 plot.getRangeAxisLocation(), orientation);
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07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
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272 float anchorX = 0f;
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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273 float anchorY = 0.0f;
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
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274 if (this.stickyAxis == SimpleAxis.X_AXIS) {
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275 // Text starts at 2% of full distance.
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parents: 1082
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276 float rangeLow = (float) rangeAxis.getRange().getLowerBound();
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
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277 float y = rangeLow + 0.02f * ((float)
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parents: 1759
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278 rangeAxis.getRange().getUpperBound() - rangeLow);
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parents: 1082
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279 setY(y);
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parents: 1082
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280
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1082
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281 anchorX = (float) domainAxis.valueToJava2D(
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
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282 getX(), dataArea, domainEdge);
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
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283 anchorY = (float) rangeAxis.valueToJava2D(
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
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284 getY(), dataArea, rangeEdge);
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
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285 } else {
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
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286 float rangeLow = (float) domainAxis.getRange().getLowerBound();
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1082
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287 float x = rangeLow + 0.02f * ((float)
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parents: 1759
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288 domainAxis.getRange().getUpperBound() - rangeLow);
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07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
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289 setX(x);
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
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parents: 1082
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290 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
291 getX(), dataArea, domainEdge);
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1082
diff changeset
292 anchorY = (float) rangeAxis.valueToJava2D(
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1082
diff changeset
293 getY(), dataArea, rangeEdge);
07878836ee0d Plot "real" (respecting parameters) W and Q MainValues, yet in wrong scale.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1082
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294 }
1039
cf39205df113 Part of refactoring (see next commit).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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295 if (orientation == PlotOrientation.HORIZONTAL) {
cf39205df113 Part of refactoring (see next commit).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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296 float tempAnchor = anchorX;
cf39205df113 Part of refactoring (see next commit).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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297 anchorX = anchorY;
cf39205df113 Part of refactoring (see next commit).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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298 anchorY = tempAnchor;
cf39205df113 Part of refactoring (see next commit).
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299 }
cf39205df113 Part of refactoring (see next commit).
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300
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27b8836abec9 Draw the text background and use orientation attribute.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
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301 //Call to apply orientation.
27b8836abec9 Draw the text background and use orientation attribute.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
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302 setStickyAxis(stickyAxis);
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cf39205df113 Part of refactoring (see next commit).
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parents:
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303
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c51089a84d13 Restored correct drawing behavior for Annotations.
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parents: 1754
diff changeset
304 // Always draw the small line at axis.
c51089a84d13 Restored correct drawing behavior for Annotations.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1754
diff changeset
305 drawAxisMark(g2, dataArea, domainAxis, rangeAxis, domainEdge,
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parents: 1759
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306 rangeEdge, orientation);
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c51089a84d13 Restored correct drawing behavior for Annotations.
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parents: 1754
diff changeset
307
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cf39205df113 Part of refactoring (see next commit).
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308 Shape hotspot = TextUtilities.calculateRotatedStringBounds(
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parents: 1759
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309 getText(), g2, anchorX, anchorY, getTextAnchor(),
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parents: 1759
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310 getRotationAngle(), getRotationAnchor());
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cf39205df113 Part of refactoring (see next commit).
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311 Rectangle2D hotspotBox = hotspot.getBounds2D();
cf39205df113 Part of refactoring (see next commit).
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parents:
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312 // Check for collisions with other XYAnnotations.
cf39205df113 Part of refactoring (see next commit).
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313 for (Iterator i = chartInfo.getEntityCollection().iterator();
cf39205df113 Part of refactoring (see next commit).
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parents:
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314 i.hasNext(); ) {
cf39205df113 Part of refactoring (see next commit).
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315 Object next = i.next();
cf39205df113 Part of refactoring (see next commit).
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316 // Collision with other stuff than XYAnnotations are okay.
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317 if (next instanceof XYAnnotationEntity) {
cf39205df113 Part of refactoring (see next commit).
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318 XYAnnotationEntity drawnShape = (XYAnnotationEntity) next;
cf39205df113 Part of refactoring (see next commit).
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parents:
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319 if (drawnShape.getArea().intersects(hotspotBox)) {
cf39205df113 Part of refactoring (see next commit).
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320 // Found collision, early stop.
cf39205df113 Part of refactoring (see next commit).
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321 return;
cf39205df113 Part of refactoring (see next commit).
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322 }
cf39205df113 Part of refactoring (see next commit).
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323 }
cf39205df113 Part of refactoring (see next commit).
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324 }
cf39205df113 Part of refactoring (see next commit).
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325
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
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326 // Draw the background.
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
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327 if (showBackground) {
27b8836abec9 Draw the text background and use orientation attribute.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
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328 g2.setStroke(new BasicStroke ((float) 1));
27b8836abec9 Draw the text background and use orientation attribute.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
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329 g2.setBackground(textBackground);
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
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330 g2.setPaint(textBackground);
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
diff changeset
331 hotspot = TextUtilities.calculateRotatedStringBounds(
27b8836abec9 Draw the text background and use orientation attribute.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
diff changeset
332 getText(), g2, anchorX, anchorY, getTextAnchor(),
27b8836abec9 Draw the text background and use orientation attribute.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
diff changeset
333 getRotationAngle(), getRotationAnchor());
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cf39205df113 Part of refactoring (see next commit).
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334 g2.fill(hotspot);
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27b8836abec9 Draw the text background and use orientation attribute.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
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335 g2.draw(hotspot);
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cf39205df113 Part of refactoring (see next commit).
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parents:
diff changeset
336 }
1751
27b8836abec9 Draw the text background and use orientation attribute.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
diff changeset
337
27b8836abec9 Draw the text background and use orientation attribute.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
diff changeset
338 // Draw the text.
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
diff changeset
339 g2.setPaint(textColor);
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 1738
diff changeset
340 g2.setFont(font);
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cf39205df113 Part of refactoring (see next commit).
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parents:
diff changeset
341 TextUtilities.drawRotatedString(getText(), g2, anchorX, anchorY,
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parents: 1759
diff changeset
342 getTextAnchor(), getRotationAngle(), getRotationAnchor());
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cf39205df113 Part of refactoring (see next commit).
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parents:
diff changeset
343
cf39205df113 Part of refactoring (see next commit).
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parents:
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344 // Add info that we have drawn this Annotation.
cf39205df113 Part of refactoring (see next commit).
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parents:
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345 addEntity(info, hotspot, rendererIndex, getToolTipText(), getURL());
cf39205df113 Part of refactoring (see next commit).
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parents:
diff changeset
346 }
1738
6cdc7a77d3d4 Apply theme attributes to axis annotation.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1711
diff changeset
347
6cdc7a77d3d4 Apply theme attributes to axis annotation.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1711
diff changeset
348
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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
349 public void applyTheme(ThemeAccess ta) {
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 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
351 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
352 textColor = ta.parseTextColor();
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 font = ta.parseTextFont();
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 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
355 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
356 showBackground = ta.parseShowTextBackground();
1738
6cdc7a77d3d4 Apply theme attributes to axis annotation.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1711
diff changeset
357 }
1039
cf39205df113 Part of refactoring (see next commit).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
358 }
1711
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1167
diff changeset
359 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org