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 @ 40558
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.app.extension; |
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import org.gvsig.andami.IconThemeHelper; |
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import org.gvsig.andami.PluginServices; |
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import org.gvsig.andami.plugins.Extension; |
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import org.gvsig.app.project.documents.AbstractDocument; |
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import org.gvsig.app.project.documents.view.gui.DefaultViewPanel; |
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import org.gvsig.fmap.mapcontext.MapContext; |
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import org.gvsig.fmap.mapcontext.ViewPort; |
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/**
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* Extensi?n que cambia el extent de la vista al extent anterior.
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*
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* @author Vicente Caballero Navarro
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*/
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public class ZoomPrev extends Extension { |
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private DefaultViewPanel vista;
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/**
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* @see com.iver.mdiApp.plugins.IExtension#isEnabled()
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*/
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public boolean isEnabled() { |
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ViewPort vp = vista.getModel().getMapContext().getViewPort(); |
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return vp.getExtents().hasPrevious();
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} |
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/**
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* @see com.iver.mdiApp.plugins.IExtension#isVisible()
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*/
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public boolean isVisible() { |
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org.gvsig.andami.ui.mdiManager.IWindow f = PluginServices.getMDIManager() |
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.getActiveWindow(); |
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if (f!=null && f instanceof DefaultViewPanel) { |
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vista = (DefaultViewPanel) f; |
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MapContext mapa = vista.getModel().getMapContext(); |
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return mapa.getLayers().getLayersCount() > 0; |
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} |
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return false; |
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} |
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/**
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* @see com.iver.mdiApp.plugins.IExtension#updateUI(java.lang.String)
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*/
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public void execute(String arg0) { |
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ViewPort vp = vista.getModel().getMapContext().getViewPort(); |
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vp.setPreviousExtent(); |
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((AbstractDocument)vista.getModel()).setModified(true); |
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} |
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/**
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* @see org.gvsig.andami.plugins.IExtension#initialize()
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*/
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public void postInitialize() { |
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} |
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public void initialize() { |
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IconThemeHelper.registerIcon("action", "view-navigation-zoom-back", this); |
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} |
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} |