svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.plugin / org.gvsig.app / org.gvsig.app.mainplugin / src / main / java / org / gvsig / app / extension / ZoomPrev.java @ 44259
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| 1 | 40558 | jjdelcerro | /**
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| 2 | * 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 | 40435 | jjdelcerro | *
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| 6 | 41248 | jjdelcerro | * This program is free software; you can redistribute it and/or modify it under
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| 7 | * the terms of the GNU General Public License as published by the Free Software
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| 8 | * Foundation; either version 3 of the License, or (at your option) any later
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| 9 | * version.
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| 10 | 40435 | jjdelcerro | *
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| 11 | 41248 | jjdelcerro | * This program is distributed in the hope that it will be useful, but WITHOUT
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| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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| 13 | * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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| 14 | * details.
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| 15 | 40435 | jjdelcerro | *
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| 16 | 41248 | jjdelcerro | * You should have received a copy of the GNU General Public License along with
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| 17 | * this program; if not, write to the Free Software Foundation, Inc., 51
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| 18 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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| 19 | 40435 | jjdelcerro | *
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| 20 | 41248 | jjdelcerro | * For any additional information, do not hesitate to contact us at info AT
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| 21 | * gvsig.com, or visit our website www.gvsig.com.
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| 22 | 40435 | jjdelcerro | */
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| 23 | package org.gvsig.app.extension; |
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| 24 | |||
| 25 | import org.gvsig.andami.IconThemeHelper; |
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| 26 | import org.gvsig.andami.plugins.Extension; |
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| 27 | 41248 | jjdelcerro | import org.gvsig.app.ApplicationLocator; |
| 28 | import org.gvsig.app.ApplicationManager; |
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| 29 | import org.gvsig.app.project.documents.view.ViewDocument; |
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| 30 | 41264 | jjdelcerro | import org.gvsig.app.project.documents.view.gui.IView; |
| 31 | 40435 | jjdelcerro | import org.gvsig.fmap.mapcontext.ViewPort; |
| 32 | |||
| 33 | /**
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| 34 | * Extensi?n que cambia el extent de la vista al extent anterior.
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| 35 | */
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| 36 | public class ZoomPrev extends Extension { |
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| 37 | |||
| 38 | 42173 | mcompany | public void postInitialize() {} |
| 39 | 40435 | jjdelcerro | |
| 40 | 42173 | mcompany | public void initialize() { |
| 41 | IconThemeHelper.registerIcon("action", "view-navigation-zoom-back", this); |
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| 42 | } |
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| 43 | 40435 | jjdelcerro | |
| 44 | 42173 | mcompany | public boolean isEnabled() { |
| 45 | ApplicationManager application = ApplicationLocator.getManager(); |
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| 46 | 40435 | jjdelcerro | |
| 47 | 42173 | mcompany | IView view = (IView) application.getActiveComponent(ViewDocument.class); |
| 48 | if (view == null) { |
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| 49 | return false; |
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| 50 | 41248 | jjdelcerro | } |
| 51 | 42173 | mcompany | ViewDocument document = view.getViewDocument(); |
| 52 | ViewPort vp = document.getMapContext().getViewPort(); |
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| 53 | return vp.getEnvelopes().hasPrevious();
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| 54 | } |
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| 55 | 40435 | jjdelcerro | |
| 56 | 42173 | mcompany | public boolean isVisible() { |
| 57 | ApplicationManager application = ApplicationLocator.getManager(); |
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| 58 | 40435 | jjdelcerro | |
| 59 | 42173 | mcompany | IView view = (IView) application.getActiveComponent(ViewDocument.class); |
| 60 | if (view == null) { |
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| 61 | return false; |
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| 62 | 41248 | jjdelcerro | } |
| 63 | 42173 | mcompany | ViewDocument document = view.getViewDocument(); |
| 64 | return document.getMapContext().getLayers().getLayersCount() > 0; |
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| 65 | } |
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| 66 | 40435 | jjdelcerro | |
| 67 | 42173 | mcompany | public void execute(String arg0) { |
| 68 | ApplicationManager application = ApplicationLocator.getManager(); |
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| 69 | 41248 | jjdelcerro | |
| 70 | 42173 | mcompany | IView view = (IView) application.getActiveComponent(ViewDocument.class); |
| 71 | if (view == null) { |
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| 72 | return;
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| 73 | 41248 | jjdelcerro | } |
| 74 | 42173 | mcompany | ViewDocument document = view.getViewDocument(); |
| 75 | ViewPort vp = document.getMapContext().getViewPort(); |
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| 76 | 41248 | jjdelcerro | |
| 77 | 42173 | mcompany | vp.setPreviousEnvelope(); |
| 78 | document.setModified(true);
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| 79 | |||
| 80 | ApplicationLocator.getManager().refreshMenusAndToolBars(); |
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| 81 | } |
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| 82 | |||
| 83 | 40435 | jjdelcerro | } |