svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.symbology / org.gvsig.symbology.lib / org.gvsig.symbology.lib.impl / src / main / java / org / gvsig / symbology / fmap / mapcontext / rendering / symbol / marker / impl / ArrowMarkerSymbol.java @ 40560
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1 | 40560 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | 40435 | jjdelcerro | *
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4 | 40560 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | 40435 | jjdelcerro | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | 40560 | jjdelcerro | * as published by the Free Software Foundation; either version 3
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9 | 40435 | jjdelcerro | * of the License, or (at your option) any later version.
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10 | 40560 | jjdelcerro | *
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11 | 40435 | jjdelcerro | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | 40560 | jjdelcerro | *
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16 | 40435 | jjdelcerro | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | 40560 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | 40435 | jjdelcerro | * MA 02110-1301, USA.
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20 | 40560 | jjdelcerro | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | 40435 | jjdelcerro | */
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24 | package org.gvsig.symbology.fmap.mapcontext.rendering.symbol.marker.impl; |
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25 | |||
26 | import java.awt.BasicStroke; |
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27 | import java.awt.Graphics2D; |
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28 | import java.awt.geom.AffineTransform; |
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29 | |||
30 | import org.gvsig.fmap.dal.feature.Feature; |
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31 | import org.gvsig.fmap.geom.Geometry; |
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32 | import org.gvsig.fmap.geom.primitive.GeneralPathX; |
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33 | import org.gvsig.fmap.geom.primitive.Point; |
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34 | import org.gvsig.fmap.mapcontext.MapContext; |
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35 | import org.gvsig.fmap.mapcontext.rendering.symbols.CartographicSupport; |
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36 | import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol; |
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37 | import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.marker.IArrowMarkerSymbol; |
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38 | import org.gvsig.tools.ToolsLocator; |
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39 | import org.gvsig.tools.dynobject.DynStruct; |
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40 | import org.gvsig.tools.persistence.PersistenceManager; |
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41 | import org.gvsig.tools.persistence.PersistentState; |
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42 | import org.gvsig.tools.persistence.exception.PersistenceException; |
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43 | import org.gvsig.tools.task.Cancellable; |
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44 | import org.gvsig.tools.util.Callable; |
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45 | |||
46 | /**
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47 | * @author 2005-2008 jaume dominguez faus - jaume.dominguez@iver.es
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48 | * @author 2009- <a href="cordinyana@gvsig.org">C?sar Ordi?ana</a> - gvSIG team
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49 | */
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50 | public class ArrowMarkerSymbol extends AbstractMarkerSymbol implements CartographicSupport, IArrowMarkerSymbol { |
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51 | |||
52 | public static final String ARROW_MARKER_SYMBOL_DYNCLASS_NAME = "ArrowMarkerSymbol"; |
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53 | |||
54 | private static final String FIELD_SHARPNESS = "sharpness"; |
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55 | |||
56 | private ArrowMarkerSymbol symSel;
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57 | private double sharpeness; |
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58 | |||
59 | public ISymbol getSymbolForSelection() {
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60 | if (symSel == null) { |
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61 | symSel = new ArrowMarkerSymbol();
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62 | symSel.setColor(MapContext.getSelectionColor()); |
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63 | |||
64 | } |
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65 | |||
66 | return symSel;
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67 | } |
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68 | |||
69 | public String getClassName() { |
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70 | return getClass().getName();
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71 | } |
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72 | |||
73 | /**
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74 | * To get the sharpeness attribute.It will determine the final form of the arrow
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75 | * @return
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76 | */
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77 | public double getSharpness() { |
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78 | return sharpeness;
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79 | } |
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80 | |||
81 | /**
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82 | * To set the sharpeness.It will determine the final form of the arrow
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83 | * @param sharpeness, the value of the arrow's edge angle IN RADIANS
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84 | * @see #getSharpeness()
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85 | */
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86 | public void setSharpness(double sharpeness) { |
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87 | this.sharpeness = sharpeness;
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88 | } |
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89 | |||
90 | public void draw(Graphics2D g, AffineTransform affineTransform, |
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91 | Geometry geom, Feature feature, Cancellable cancel) { |
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92 | |||
93 | if (geom == null) { |
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94 | return;
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95 | } |
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96 | Point p = (Point) geom; |
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97 | double radian_half_sharpeness = Math.toRadians(getSharpness()*.5); // |
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98 | |||
99 | double size = getSize();
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100 | double halfHeight = size * Math.tan(radian_half_sharpeness); |
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101 | double theta = getRotation();
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102 | |||
103 | g.setColor(getColor()); |
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104 | |||
105 | g.setStroke(new BasicStroke()); |
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106 | |||
107 | AffineTransform newAf = (AffineTransform)affineTransform.clone(); |
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108 | |||
109 | newAf.translate(p.getX(), p.getY()); |
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110 | newAf.rotate(theta); |
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111 | |||
112 | GeneralPathX gp = new GeneralPathX();
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113 | gp.moveTo(0, 0); |
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114 | gp.lineTo(size, -halfHeight); |
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115 | gp.lineTo(size, halfHeight); |
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116 | gp.closePath(); |
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117 | |||
118 | gp.transform(newAf); |
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119 | |||
120 | g.fill(gp); |
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121 | } |
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122 | |||
123 | public Object clone() throws CloneNotSupportedException { |
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124 | ArrowMarkerSymbol copy = (ArrowMarkerSymbol) super.clone();
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125 | |||
126 | // Clone the selection symbol
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127 | if (symSel != null) { |
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128 | copy.symSel = (ArrowMarkerSymbol) symSel.clone(); |
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129 | } |
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130 | return copy;
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131 | } |
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132 | |||
133 | public void loadFromState(PersistentState state) |
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134 | throws PersistenceException {
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135 | // Set parent fill symbol properties
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136 | super.loadFromState(state);
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137 | |||
138 | // Set own properties
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139 | setSharpness(state.getDouble(FIELD_SHARPNESS)); |
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140 | } |
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141 | |||
142 | public void saveToState(PersistentState state) throws PersistenceException { |
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143 | // Save parent fill symbol properties
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144 | super.saveToState(state);
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145 | |||
146 | // Save own properties
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147 | state.set(FIELD_SHARPNESS, getSharpness()); |
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148 | } |
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149 | |||
150 | public static class RegisterPersistence implements Callable { |
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151 | |||
152 | public Object call() throws Exception { |
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153 | PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
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154 | if( manager.getDefinition(ARROW_MARKER_SYMBOL_DYNCLASS_NAME)==null ) { |
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155 | DynStruct definition = manager.addDefinition( |
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156 | ArrowMarkerSymbol.class, |
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157 | ARROW_MARKER_SYMBOL_DYNCLASS_NAME, |
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158 | ARROW_MARKER_SYMBOL_DYNCLASS_NAME+" Persistence definition",
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159 | null,
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160 | null
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161 | ); |
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162 | // Extend the FillSymbol base definition
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163 | definition.extend(manager.getDefinition(MARKER_SYMBOL_PERSISTENCE_DEFINITION_NAME)); |
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164 | |||
165 | // Sharpeness
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166 | definition.addDynFieldDouble(FIELD_SHARPNESS).setMandatory(true);
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167 | } |
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168 | return Boolean.TRUE; |
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169 | } |
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170 | |||
171 | } |
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172 | |||
173 | } |