svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.plugin / org.gvsig.app / org.gvsig.app.mainplugin / src / main / java / org / gvsig / app / project / documents / view / toolListeners / MapOverviewChangeZoomListener.java @ 40558
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1 | 40435 | jjdelcerro | /**
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2 | 40558 | jjdelcerro | * gvSIG. Desktop Geographic Information System.
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3 | 40435 | jjdelcerro | *
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4 | 40558 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | * 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 | * as published by the Free Software Foundation; either version 3
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * 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 | *
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16 | * 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 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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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 | 40558 | jjdelcerro | /**
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25 | *
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26 | */
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27 | 40435 | jjdelcerro | package org.gvsig.app.project.documents.view.toolListeners; |
28 | |||
29 | import java.awt.Image; |
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30 | import java.awt.event.InputEvent; |
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31 | import java.awt.event.MouseEvent; |
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32 | import java.awt.geom.Point2D; |
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33 | import java.awt.geom.Rectangle2D; |
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34 | |||
35 | import org.gvsig.andami.PluginServices; |
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36 | import org.gvsig.app.gui.styling.SymbolSelector; |
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37 | import org.gvsig.app.project.documents.view.MapOverview; |
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38 | import org.gvsig.fmap.geom.GeometryLocator; |
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39 | import org.gvsig.fmap.geom.GeometryManager; |
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40 | import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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41 | import org.gvsig.fmap.geom.exception.CreateEnvelopeException; |
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42 | import org.gvsig.fmap.geom.primitive.Envelope; |
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43 | import org.gvsig.fmap.mapcontext.ViewPort; |
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44 | import org.gvsig.fmap.mapcontrol.MapControl; |
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45 | import org.gvsig.fmap.mapcontrol.tools.BehaviorException; |
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46 | import org.gvsig.fmap.mapcontrol.tools.Events.EnvelopeEvent; |
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47 | import org.gvsig.fmap.mapcontrol.tools.Events.MoveEvent; |
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48 | import org.gvsig.fmap.mapcontrol.tools.Listeners.PanListener; |
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49 | import org.gvsig.fmap.mapcontrol.tools.Listeners.RectangleListener; |
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50 | import org.slf4j.Logger; |
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51 | import org.slf4j.LoggerFactory; |
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52 | |||
53 | |||
54 | /**
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55 | * <p>Listener for changes of the zoom caused by selecting a rectangular area on the associated
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56 | * {@link MapOverview MapOverview} object with the first button of the mouse.</p>
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57 | *
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58 | * <p>If the kind of action was a movement on the associated object,
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59 | * updates the <i>extent</i> of its rectangular area.</p>
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60 | *
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61 | * <p>If the kind of action is the selection of a rectangular area, and is bigger than 3x3 pixels,
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62 | * applies a <i>zoom in</i> operation centering its <code>ViewPort</code> according the equivalent <i>extent</i>
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63 | * in map coordinates.</p>
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64 | *
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65 | * @see ViewPort
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66 | *
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67 | * @author jmvivo
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68 | */
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69 | public class MapOverviewChangeZoomListener implements RectangleListener, PanListener { |
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70 | private static final GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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71 | private static final Logger logger = LoggerFactory.getLogger(MapOverviewChangeZoomListener.class); |
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72 | /**
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73 | * The image to display when the cursor is active.
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74 | */
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75 | private final Image izoomin = PluginServices.getIconTheme() |
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76 | .get("cursor-zoom-in").getImage();
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77 | |||
78 | /**
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79 | * The cursor used to work with this tool listener.
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80 | *
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81 | * @see #getCursor()
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82 | */
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83 | // private Cursor cur = Toolkit.getDefaultToolkit().createCustomCursor(izoomin,new Point(16, 16), "");
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84 | |||
85 | /**
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86 | * Reference to the <code>MapControl</code> object that uses.
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87 | */
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88 | protected MapControl mapControl;
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89 | |||
90 | /**
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91 | * <p>Creates a new listener for changes of zoom at the associated {@link MapOverview MapOverview} object.</p>
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92 | *
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93 | * @param mapControl the <code>MapControl</code> object which represents the <code>MapOverview</code>
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94 | */
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95 | public MapOverviewChangeZoomListener(MapControl mapControl) {
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96 | this.mapControl=mapControl;
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97 | } |
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98 | |||
99 | /*
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100 | * (non-Javadoc)
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101 | * @see com.iver.cit.gvsig.fmap.tools.Listeners.RectangleListener#rectangle(com.iver.cit.gvsig.fmap.tools.Events.RectangleEvent)
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102 | */
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103 | public void rectangle(EnvelopeEvent event) throws BehaviorException { |
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104 | |||
105 | if (!checkModifiers(event.getEvent())){
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106 | return;
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107 | } |
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108 | MapOverview mov=(MapOverview) this.mapControl;
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109 | ViewPort vpView=mov.getAssociatedMapContext().getViewPort(); |
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110 | ViewPort vp = mov.getViewPort(); |
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111 | |||
112 | if (vp.getExtent() != null && vpView.getExtent() != null) { |
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113 | |||
114 | // Recuperamos las coordenadas del evento en px
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115 | Rectangle2D pxRectangle = event.getPixelCoordRect();
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116 | // Recuperamos las coordenadas del evento en coordenadas de la vista de localizador
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117 | Envelope realRectangle = event.getWorldCoordRect(); |
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118 | |||
119 | if ((pxRectangle.getWidth() < 3) && (pxRectangle.getHeight() < 3)) |
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120 | { |
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121 | // rectangulo < 3 px no hacemos nada
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122 | return;
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123 | |||
124 | } else {
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125 | // Cambiamos la extension de la vista asociada al localizador
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126 | vpView.setEnvelope(realRectangle); |
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127 | mov.getAssociatedMapContext().invalidate(); |
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128 | vpView.setEnvelope(realRectangle); |
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129 | } |
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130 | } |
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131 | } |
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132 | |||
133 | /*
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134 | * (non-Javadoc)
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135 | * @see com.iver.cit.gvsig.fmap.tools.Listeners.ToolListener#getCursor()
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136 | */
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137 | public Image getImageCursor() { |
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138 | return izoomin;
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139 | } |
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140 | |||
141 | /* (non-Javadoc)
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142 | * @see com.iver.cit.gvsig.fmap.tools.Listeners.ToolListener#cancelDrawing()
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143 | */
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144 | public boolean cancelDrawing() { |
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145 | return true; //??? |
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146 | } |
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147 | |||
148 | /*
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149 | * (non-Javadoc)
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150 | * @see com.iver.cit.gvsig.fmap.tools.Listeners.PanListener#move(com.iver.cit.gvsig.fmap.tools.Events.MoveEvent)
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151 | */
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152 | public void move(MoveEvent event) throws BehaviorException { |
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153 | |||
154 | |||
155 | if (!checkModifiers(event.getEvent())){
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156 | return;
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157 | } |
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158 | // System.out.println("mapOvervierChangeZoom");
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159 | MapOverview mov=(MapOverview) this.mapControl;
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160 | ViewPort vpView=mov.getAssociatedMapContext().getViewPort(); |
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161 | ViewPort vp = mov.getViewPort(); |
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162 | |||
163 | if (vp.getExtent() != null && vpView.getExtent() != null) { |
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164 | |||
165 | // Creamos un recuadro con las coordenadas del raton
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166 | // traducidas a la del mapa
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167 | // Rectangle2D realRectangle = new Rectangle2D.Double();
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168 | Point2D p1=vp.toMapPoint(event.getFrom());
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169 | Point2D p2=vp.toMapPoint(event.getTo());
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170 | Envelope realRectangle = null;
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171 | double x=0; |
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172 | double y=0; |
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173 | double xMax=0; |
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174 | double yMax=0; |
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175 | if (p1.getX()<p2.getX()){
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176 | x=p1.getX(); |
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177 | xMax=p2.getX(); |
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178 | }else{
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179 | x=p2.getX(); |
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180 | xMax=p1.getX(); |
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181 | } |
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182 | if (p1.getY()<p2.getY()){
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183 | y=p1.getY(); |
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184 | yMax=p2.getY(); |
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185 | }else{
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186 | y=p2.getY(); |
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187 | yMax=p1.getY(); |
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188 | } |
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189 | try {
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190 | realRectangle = geomManager.createEnvelope(x,y,xMax,yMax, SUBTYPES.GEOM2D); |
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191 | } catch (CreateEnvelopeException e) {
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192 | logger.error("Error creating the envelope", e);
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193 | } |
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194 | |||
195 | // realRectangle.setFrameFromDiagonal(vp.toMapPoint(event.getFrom()),vp.toMapPoint(event.getTo()));
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196 | |||
197 | // Establecemos la forma
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198 | mov.refreshOverView(realRectangle); |
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199 | } |
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200 | |||
201 | |||
202 | |||
203 | } |
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204 | |||
205 | /**
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206 | * Determines if has pressed the button 1 of the mouse.
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207 | */
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208 | private boolean checkModifiers(MouseEvent event) { |
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209 | int modifiers = event.getModifiers();
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210 | int keyPressedMask = InputEvent.BUTTON1_MASK; |
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211 | return ((modifiers & keyPressedMask) == keyPressedMask);
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212 | } |
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213 | } |