root / branches / v2_0_0_prep / extensions / org.gvsig.selectiontools.app / org.gvsig.selectiontools.app.extension / src / main / java / org / gvsig / selectiontools / app / extension / tools / CircleSelectionListener.java @ 38608
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1 | 33404 | fdiaz | package org.gvsig.selectiontools.app.extension.tools; |
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3 | /* gvSIG. Geographic Information System of the Valencian Government
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4 | *
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5 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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6 | * of the Valencian Government (CIT)
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7 | *
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8 | * This program is free software; you can redistribute it and/or
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9 | * modify it under the terms of the GNU General Public License
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10 | * as published by the Free Software Foundation; either version 2
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11 | * of the License, or (at your option) any later version.
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12 | *
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13 | * This program is distributed in the hope that it will be useful,
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 | * GNU General Public License for more details.
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17 | *
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18 | * You should have received a copy of the GNU General Public License
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19 | * along with this program; if not, write to the Free Software
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20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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21 | * MA 02110-1301, USA.
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22 | *
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23 | */
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24 | |||
25 | import java.awt.Cursor; |
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26 | import java.awt.Image; |
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27 | import java.awt.Toolkit; |
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28 | import java.awt.event.MouseEvent; |
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29 | |||
30 | import javax.swing.ImageIcon; |
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31 | |||
32 | 38564 | jjdelcerro | import org.gvsig.andami.IconThemeHelper; |
33 | 33404 | fdiaz | import org.gvsig.andami.PluginServices; |
34 | import org.gvsig.andami.messages.NotificationManager; |
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35 | import org.gvsig.fmap.dal.exception.DataException; |
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36 | import org.gvsig.fmap.dal.feature.FeatureSelection; |
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37 | import org.gvsig.fmap.dal.feature.FeatureSet; |
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38 | import org.gvsig.fmap.geom.Geometry; |
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39 | import org.gvsig.fmap.geom.GeometryLocator; |
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40 | import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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41 | import org.gvsig.fmap.geom.Geometry.TYPES; |
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42 | import org.gvsig.fmap.geom.GeometryManager; |
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43 | import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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44 | 33424 | fdiaz | import org.gvsig.fmap.geom.operation.GeometryOperationException; |
45 | import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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46 | import org.gvsig.fmap.geom.primitive.Point; |
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47 | import org.gvsig.fmap.geom.primitive.Circle; |
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48 | 33404 | fdiaz | import org.gvsig.fmap.geom.primitive.GeneralPathX; |
49 | import org.gvsig.fmap.mapcontext.layers.FLayer; |
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50 | import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect; |
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51 | import org.gvsig.fmap.mapcontrol.MapControl; |
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52 | import org.gvsig.fmap.mapcontrol.tools.BehaviorException; |
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53 | import org.gvsig.fmap.mapcontrol.tools.Events.MeasureEvent; |
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54 | import org.gvsig.fmap.mapcontrol.tools.Listeners.CircleListener; |
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55 | |||
56 | /**
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57 | * <p>
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58 | * Listener that selects all features of the active, available and vector layers
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59 | * which intersect with the defined circle area in the associated
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60 | * {@link MapControl MapControl} object.
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61 | * </p>
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62 | *
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63 | * @author Pablo Piqueras Bartolom? (pablo.piqueras@iver.es)
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64 | */
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65 | public class CircleSelectionListener implements CircleListener { |
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66 | |||
67 | |||
68 | 38608 | jjdelcerro | |
69 | 33404 | fdiaz | /**
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70 | * The cursor used to work with this tool listener.
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71 | *
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72 | * @see #getCursor()
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73 | */
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74 | 38564 | jjdelcerro | private Cursor cur = null ; |
75 | 33404 | fdiaz | |
76 | /**
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77 | * Reference to the <code>MapControl</code> object that uses.
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78 | */
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79 | private MapControl mapCtrl;
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80 | |||
81 | /**
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82 | * <p>
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83 | * Creates a new listener for selecting circular areas.
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84 | * </p>
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85 | *
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86 | * @param mc
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87 | * the <code>MapControl</code> object where the measures are made
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88 | */
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89 | public CircleSelectionListener(MapControl mc) {
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90 | this.mapCtrl = mc;
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91 | } |
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92 | |||
93 | /*
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94 | * (non-Javadoc)
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95 | *
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96 | * @see
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97 | * com.iver.cit.gvsig.fmap.tools.Listeners.CircleListener#circle(com.iver
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98 | * .cit.gvsig.fmap.tools.Events.MeasureEvent)
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99 | */
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100 | public void circle(MeasureEvent event) throws BehaviorException { |
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101 | if (event.getEvent().getID() == MouseEvent.MOUSE_RELEASED) { |
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102 | FLayer[] activeLayers =
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103 | mapCtrl.getMapContext().getLayers().getActives(); |
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104 | |||
105 | FLayer layer; |
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106 | FLyrVect lyrVect; |
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107 | |||
108 | 33424 | fdiaz | Geometry geom = null;
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109 | GeometryManager manager = GeometryLocator.getGeometryManager(); |
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110 | Point center;
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111 | try {
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112 | center = (Point)manager.create(TYPES.POINT, SUBTYPES.GEOM2D);
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113 | center.setX(event.getXs()[0].doubleValue());
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114 | center.setY(event.getYs()[0].intValue());
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115 | 33404 | fdiaz | |
116 | 33424 | fdiaz | Point point2;
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117 | point2 = (Point)manager.create(TYPES.POINT, SUBTYPES.GEOM2D);
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118 | point2.setX(event.getXs()[1].doubleValue());
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119 | point2.setY(event.getYs()[1].intValue());
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120 | 33404 | fdiaz | |
121 | 33424 | fdiaz | double radious = center.distance(point2);
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122 | |||
123 | Circle circle = null;
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124 | circle = (Circle) manager.create(TYPES.CIRCLE, SUBTYPES.GEOM2D); |
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125 | 33404 | fdiaz | circle.setPoints(center, radious); |
126 | geom = circle; |
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127 | 33424 | fdiaz | } catch (CreateGeometryException e) {
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128 | 33404 | fdiaz | NotificationManager.showMessageError(PluginServices.getText(null,
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129 | 33424 | fdiaz | "Failed_creating_geometry"),
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130 | e); |
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131 | } catch (GeometryOperationNotSupportedException e) {
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132 | NotificationManager.showMessageError(PluginServices.getText(null,
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133 | "Operation_not_supported"),
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134 | e); |
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135 | } catch (GeometryOperationException e) {
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136 | NotificationManager.showMessageError(PluginServices.getText(null,
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137 | "Failed_performing_the_operation"),
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138 | e); |
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139 | 33404 | fdiaz | } |
140 | if (geom == null) |
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141 | return;
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142 | |||
143 | double flatness;
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144 | |||
145 | // Creates the geometry
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146 | // If the scale is < 500 -> approximates the circle with a polyline
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147 | // with more points, as many as
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148 | // smaller would be the scale
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149 | if (mapCtrl.getMapContext().getScaleView() < 500) { |
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150 | GeneralPathX gP = new GeneralPathX();
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151 | flatness = manager.getFlatness(); // ?????
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152 | flatness = |
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153 | mapCtrl.getMapContext().getScaleView() * flatness |
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154 | 33424 | fdiaz | / (500 * 2); // The number 2 forces to create the double |
155 | // of points
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156 | 33404 | fdiaz | gP.append(geom.getPathIterator(null, flatness), true); |
157 | try {
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158 | geom = manager.createSurface(gP, SUBTYPES.GEOM2D); |
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159 | } catch (CreateGeometryException e) {
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160 | NotificationManager.showMessageError(PluginServices.getText(null,
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161 | 33424 | fdiaz | "Failed_creating_geometry"),
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162 | e); |
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163 | 33404 | fdiaz | } |
164 | } else {
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165 | // Bigger scale -> Smaller flatness
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166 | GeneralPathX gP = new GeneralPathX();
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167 | flatness = manager.getFlatness(); // ?????
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168 | flatness = |
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169 | 33424 | fdiaz | flatness / (mapCtrl.getMapContext().getScaleView() * 2);
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170 | // *2 to reduce the number of lines of the polygon
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171 | |||
172 | 33404 | fdiaz | gP.append(geom.getPathIterator(null, flatness), true); |
173 | try {
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174 | geom = manager.createSurface(gP, SUBTYPES.GEOM2D); |
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175 | } catch (CreateGeometryException e) {
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176 | NotificationManager.showMessageError(PluginServices.getText(null,
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177 | 33424 | fdiaz | "Failed_creating_geometry"),
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178 | e); |
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179 | 33404 | fdiaz | } |
180 | } |
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181 | |||
182 | for (int i = 0; i < activeLayers.length; i++) { |
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183 | layer = activeLayers[i]; |
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184 | |||
185 | if ((layer.isAvailable()) && (layer instanceof FLyrVect)) { |
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186 | lyrVect = (FLyrVect) layer; |
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187 | FeatureSet newSelection = null;
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188 | |||
189 | try {
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190 | newSelection = |
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191 | lyrVect.queryByGeometry(geom, |
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192 | lyrVect.getFeatureStore() |
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193 | 33424 | fdiaz | .getDefaultFeatureType()); |
194 | 33404 | fdiaz | |
195 | if (event.getEvent().isControlDown()) {
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196 | ((FeatureSelection) lyrVect.getDataStore() |
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197 | .getSelection()).select(newSelection); |
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198 | } else {
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199 | lyrVect.getFeatureStore() |
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200 | 33424 | fdiaz | .setSelection(newSelection); |
201 | 33404 | fdiaz | } |
202 | |||
203 | } catch (DataException e) {
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204 | NotificationManager.showMessageError(PluginServices.getText(null,
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205 | "Failed_selecting_geometries"),
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206 | e); |
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207 | } finally {
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208 | newSelection.dispose(); |
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209 | } |
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210 | } |
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211 | } |
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212 | } |
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213 | } |
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214 | |||
215 | /*
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216 | * (non-Javadoc)
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217 | *
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218 | * @see com.iver.cit.gvsig.fmap.tools.Listeners.ToolListener#getCursor()
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219 | */
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220 | 38564 | jjdelcerro | public Cursor getCursor() { |
221 | if (cur == null) { |
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222 | cur = Toolkit.getDefaultToolkit().createCustomCursor(
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223 | this.getImageCursor(), new java.awt.Point(16, 16), ""); |
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224 | } |
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225 | return cur;
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226 | } |
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227 | 33404 | fdiaz | |
228 | /*
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229 | * (non-Javadoc)
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230 | *
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231 | * @see com.iver.cit.gvsig.fmap.tools.Listeners.ToolListener#cancelDrawing()
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232 | */
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233 | public boolean cancelDrawing() { |
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234 | return false; |
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235 | } |
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236 | |||
237 | public Image getImageCursor() { |
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238 | 38564 | jjdelcerro | return IconThemeHelper.getImage("cursor-select-by-circle"); |
239 | 33404 | fdiaz | } |
240 | } |