root / branches / v2_0_0_prep / applications / appgvSIG / src / org / gvsig / app / extension / ZoomPrev.java @ 38608
History | View | Annotate | Download (2.82 KB)
| 1 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
|---|---|
| 2 |
*
|
| 3 |
* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
|
| 4 |
*
|
| 5 |
* This program is free software; you can redistribute it and/or
|
| 6 |
* modify it under the terms of the GNU General Public License
|
| 7 |
* as published by the Free Software Foundation; either version 2
|
| 8 |
* of the License, or (at your option) any later version.
|
| 9 |
*
|
| 10 |
* This program is distributed in the hope that it will be useful,
|
| 11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 13 |
* GNU General Public License for more details.
|
| 14 |
*
|
| 15 |
* You should have received a copy of the GNU General Public License
|
| 16 |
* along with this program; if not, write to the Free Software
|
| 17 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
| 18 |
*
|
| 19 |
* For more information, contact:
|
| 20 |
*
|
| 21 |
* Generalitat Valenciana
|
| 22 |
* Conselleria d'Infraestructures i Transport
|
| 23 |
* Av. Blasco Ib??ez, 50
|
| 24 |
* 46010 VALENCIA
|
| 25 |
* SPAIN
|
| 26 |
*
|
| 27 |
* +34 963862235
|
| 28 |
* gvsig@gva.es
|
| 29 |
* www.gvsig.gva.es
|
| 30 |
*
|
| 31 |
* or
|
| 32 |
*
|
| 33 |
* IVER T.I. S.A
|
| 34 |
* Salamanca 50
|
| 35 |
* 46005 Valencia
|
| 36 |
* Spain
|
| 37 |
*
|
| 38 |
* +34 963163400
|
| 39 |
* dac@iver.es
|
| 40 |
*/
|
| 41 |
package org.gvsig.app.extension; |
| 42 |
|
| 43 |
import org.gvsig.andami.IconThemeHelper; |
| 44 |
import org.gvsig.andami.PluginServices; |
| 45 |
import org.gvsig.andami.plugins.Extension; |
| 46 |
import org.gvsig.app.project.documents.AbstractDocument; |
| 47 |
import org.gvsig.app.project.documents.view.gui.DefaultViewPanel; |
| 48 |
import org.gvsig.fmap.mapcontext.MapContext; |
| 49 |
import org.gvsig.fmap.mapcontext.ViewPort; |
| 50 |
|
| 51 |
|
| 52 |
|
| 53 |
/**
|
| 54 |
* Extensi?n que cambia el extent de la vista al extent anterior.
|
| 55 |
*
|
| 56 |
* @author Vicente Caballero Navarro
|
| 57 |
*/
|
| 58 |
public class ZoomPrev extends Extension { |
| 59 |
private DefaultViewPanel vista;
|
| 60 |
/**
|
| 61 |
* @see com.iver.mdiApp.plugins.IExtension#isEnabled()
|
| 62 |
*/
|
| 63 |
public boolean isEnabled() { |
| 64 |
ViewPort vp = vista.getModel().getMapContext().getViewPort(); |
| 65 |
|
| 66 |
return vp.getExtents().hasPrevious();
|
| 67 |
} |
| 68 |
|
| 69 |
/**
|
| 70 |
* @see com.iver.mdiApp.plugins.IExtension#isVisible()
|
| 71 |
*/
|
| 72 |
public boolean isVisible() { |
| 73 |
org.gvsig.andami.ui.mdiManager.IWindow f = PluginServices.getMDIManager() |
| 74 |
.getActiveWindow(); |
| 75 |
|
| 76 |
if (f!=null && f instanceof DefaultViewPanel) { |
| 77 |
vista = (DefaultViewPanel) f; |
| 78 |
|
| 79 |
MapContext mapa = vista.getModel().getMapContext(); |
| 80 |
|
| 81 |
return mapa.getLayers().getLayersCount() > 0; |
| 82 |
} |
| 83 |
return false; |
| 84 |
} |
| 85 |
|
| 86 |
/**
|
| 87 |
* @see com.iver.mdiApp.plugins.IExtension#updateUI(java.lang.String)
|
| 88 |
*/
|
| 89 |
public void execute(String arg0) { |
| 90 |
ViewPort vp = vista.getModel().getMapContext().getViewPort(); |
| 91 |
vp.setPreviousExtent(); |
| 92 |
((AbstractDocument)vista.getModel()).setModified(true); |
| 93 |
} |
| 94 |
|
| 95 |
/**
|
| 96 |
* @see org.gvsig.andami.plugins.IExtension#initialize()
|
| 97 |
*/
|
| 98 |
public void postInitialize() { |
| 99 |
} |
| 100 |
|
| 101 |
public void initialize() { |
| 102 |
IconThemeHelper.registerIcon("action", "view-navigation-zoom-back", this); |
| 103 |
} |
| 104 |
} |