root / branches / v2_0_0_prep / applications / appgvSIG / src / org / gvsig / app / extension / ZoomPrev.java @ 38603
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| 1 | 1103 | fjp | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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| 2 | *
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| 3 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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| 4 | *
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| 5 | * This program is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU General Public License
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| 7 | * as published by the Free Software Foundation; either version 2
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| 8 | * of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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| 18 | *
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| 19 | * For more information, contact:
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| 20 | *
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| 21 | * Generalitat Valenciana
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| 22 | * Conselleria d'Infraestructures i Transport
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| 23 | * Av. Blasco Ib??ez, 50
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| 24 | * 46010 VALENCIA
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| 25 | * SPAIN
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| 26 | *
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| 27 | * +34 963862235
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| 28 | * gvsig@gva.es
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| 29 | * www.gvsig.gva.es
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| 30 | *
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| 31 | * or
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| 32 | *
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| 33 | * IVER T.I. S.A
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| 34 | * Salamanca 50
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| 35 | * 46005 Valencia
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| 36 | * Spain
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| 37 | *
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| 38 | * +34 963163400
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| 39 | * dac@iver.es
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| 40 | */
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| 41 | 29596 | jpiera | package org.gvsig.app.extension; |
| 42 | 312 | fernando | |
| 43 | 38564 | jjdelcerro | import org.gvsig.andami.IconThemeHelper; |
| 44 | 29596 | jpiera | import org.gvsig.andami.PluginServices; |
| 45 | import org.gvsig.andami.plugins.Extension; |
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| 46 | 31496 | jjdelcerro | import org.gvsig.app.project.documents.AbstractDocument; |
| 47 | import org.gvsig.app.project.documents.view.gui.DefaultViewPanel; |
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| 48 | 20994 | jmvivo | import org.gvsig.fmap.mapcontext.MapContext; |
| 49 | import org.gvsig.fmap.mapcontext.ViewPort; |
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| 50 | |||
| 51 | 312 | fernando | |
| 52 | |||
| 53 | 1219 | vcaballero | /**
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| 54 | * Extensi?n que cambia el extent de la vista al extent anterior.
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| 55 | *
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| 56 | * @author Vicente Caballero Navarro
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| 57 | */
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| 58 | 5005 | jorpiell | public class ZoomPrev extends Extension { |
| 59 | 31496 | jjdelcerro | private DefaultViewPanel vista;
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| 60 | 312 | fernando | /**
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| 61 | 5005 | jorpiell | * @see com.iver.mdiApp.plugins.IExtension#isEnabled()
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| 62 | 312 | fernando | */
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| 63 | public boolean isEnabled() { |
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| 64 | ViewPort vp = vista.getModel().getMapContext().getViewPort(); |
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| 65 | 1219 | vcaballero | |
| 66 | 312 | fernando | return vp.getExtents().hasPrevious();
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| 67 | } |
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| 68 | |||
| 69 | /**
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| 70 | 5005 | jorpiell | * @see com.iver.mdiApp.plugins.IExtension#isVisible()
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| 71 | 312 | fernando | */
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| 72 | public boolean isVisible() { |
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| 73 | 29596 | jpiera | org.gvsig.andami.ui.mdiManager.IWindow f = PluginServices.getMDIManager() |
| 74 | 6880 | cesar | .getActiveWindow(); |
| 75 | 312 | fernando | |
| 76 | 31496 | jjdelcerro | if (f!=null && f instanceof DefaultViewPanel) { |
| 77 | vista = (DefaultViewPanel) f; |
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| 78 | 312 | fernando | |
| 79 | 26053 | vcaballero | MapContext mapa = vista.getModel().getMapContext(); |
| 80 | 312 | fernando | |
| 81 | 387 | fjp | return mapa.getLayers().getLayersCount() > 0; |
| 82 | 312 | fernando | } |
| 83 | 9532 | caballero | return false; |
| 84 | 312 | fernando | } |
| 85 | |||
| 86 | /**
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| 87 | 5005 | jorpiell | * @see com.iver.mdiApp.plugins.IExtension#updateUI(java.lang.String)
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| 88 | 312 | fernando | */
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| 89 | 596 | fernando | public void execute(String arg0) { |
| 90 | 312 | fernando | ViewPort vp = vista.getModel().getMapContext().getViewPort(); |
| 91 | 958 | vcaballero | vp.setPreviousExtent(); |
| 92 | 31496 | jjdelcerro | ((AbstractDocument)vista.getModel()).setModified(true); |
| 93 | 312 | fernando | } |
| 94 | |||
| 95 | 596 | fernando | /**
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| 96 | 29596 | jpiera | * @see org.gvsig.andami.plugins.IExtension#initialize()
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| 97 | 596 | fernando | */
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| 98 | 38564 | jjdelcerro | public void postInitialize() { |
| 99 | } |
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| 100 | |||
| 101 | 5005 | jorpiell | public void initialize() { |
| 102 | 38564 | jjdelcerro | IconThemeHelper.registerIcon("action", "view-navigation-zoom-back", this); |
| 103 | 596 | fernando | } |
| 104 | 312 | fernando | } |