svn-gvsig-desktop / branches / v2_0_0_prep / applications / appgvSIG / src / org / gvsig / app / project / documents / view / toc / actions / CopyPasteLayersUtils.java @ 39574
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package org.gvsig.app.project.documents.view.toc.actions; |
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import java.awt.Component; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.OutputStream; |
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import javax.swing.JOptionPane; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.gvsig.andami.PluginServices; |
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import org.gvsig.andami.ui.mdiManager.IWindow; |
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import org.gvsig.app.extension.ProjectExtension; |
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import org.gvsig.app.project.Project; |
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import org.gvsig.fmap.mapcontext.MapContext; |
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import org.gvsig.fmap.mapcontext.layers.CancelationException; |
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import org.gvsig.fmap.mapcontext.layers.FLayer; |
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import org.gvsig.fmap.mapcontext.layers.FLayers; |
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import org.gvsig.i18n.Messages; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.persistence.PersistenceManager; |
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import org.gvsig.tools.persistence.PersistentState; |
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import org.gvsig.tools.persistence.exception.PersistenceException; |
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import org.gvsig.tools.persistence.impl.exception.ObjectNotFoundException; |
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/**
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* This class provides utility methods to manage the TOC clipboard
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* which will contain one or more layers for copy/cut/paste
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* operations. It is currently implemented using a persistence
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* file where an instance of FLayers is stored.
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*
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* @author jldominguez
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*
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*/
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public class CopyPasteLayersUtils { |
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private static Logger logger = LoggerFactory |
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.getLogger(CopyPasteLayersUtils.class); |
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/**
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* The file which is used to save the layers
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*/
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private static String CLIPBOARD_FILE_NAME = "gvSIG_clipboard.tmp"; |
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private static/* XML */PersistenceManager persManager = ToolsLocator |
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.getPersistenceManager(); |
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private CopyPasteLayersUtils() {
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} |
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/**
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* Gets the outputstream for writing contents to the
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* clipboard
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*
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* @return
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* @throws IOException
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*/
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private static OutputStream getClipboardOStream() throws IOException { |
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String strf =
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System.getProperty("user.home") + File.separator + "gvSIG" |
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+ File.separator + CLIPBOARD_FILE_NAME;
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File f = new File(strf); |
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if (f.exists()) {
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/*
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* If file exists, it is removed
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* (clipboard content overwritten)
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*/
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f.delete(); |
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} |
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/*
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* File will be removed on exit
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*/
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f.deleteOnExit(); |
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return new FileOutputStream(f); |
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} |
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/**
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* Gets the input stream to read the clipboard or null
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* if clipboard is empty
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*
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* @return
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* @throws IOException
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*/
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private static InputStream getClipboardIStream() throws IOException { |
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String strf =
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System.getProperty("user.home") + File.separator + "gvSIG" |
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+ File.separator + CLIPBOARD_FILE_NAME;
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File f = new File(strf); |
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if (f.exists()) {
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return new FileInputStream(f); |
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} else {
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return null; |
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} |
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} |
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/**
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* Returns the content of the clipboard as an instance
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* of FLayers or null if clipboard is empty or does not
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* contain instance of FLayers
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*
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* @return
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* @throws PersistenceException
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*/
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public static FLayers getClipboardAsFLayers() throws PersistenceException { |
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InputStream is = null; |
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try {
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is = getClipboardIStream(); |
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if (is == null) { |
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return null; |
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} |
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Object obj = persManager.getObject(is);
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is.close(); |
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if (obj instanceof FLayers) { |
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return (FLayers) obj;
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} else {
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return null; |
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} |
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} catch (Exception e) { |
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logger.info("While getting object from clipboard: ", e);
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throw new PersistenceException(e); |
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} |
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} |
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/**
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* Stores the given {@link PersistentState}
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* to clipboard
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*
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* @param st
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* @throws PersistenceException
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*/
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public static void saveToClipboard(PersistentState st) |
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throws PersistenceException {
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OutputStream os = null; |
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try {
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os = getClipboardOStream(); |
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persManager.saveState(st, os); |
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os.close(); |
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if (st.getContext().getErrors() != null) { |
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throw st.getContext().getErrors();
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} |
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} catch (Exception ex) { |
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throw new PersistenceException(ex); |
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} |
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} |
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/**
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* Gets an array of layers as a {@link PersistentState}
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* of an instance of FLayers
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*
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* @param actives
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* @param ctxt
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* @return
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* @throws PersistenceException
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*/
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public static PersistentState getAsFLayersPersistentState(FLayer[] actives, |
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MapContext ctxt) throws PersistenceException {
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FLayers lyrs = new FLayers();
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lyrs.setMapContext(ctxt); |
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lyrs.setName("copy-paste-root");
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FLayer item = null;
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if (actives != null) { |
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for (int i = 0; i < actives.length; i++) { |
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item = actives[i]; |
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try {
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item = item.cloneLayer(); |
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} catch (Exception ex) { |
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throw new PersistenceException(ex); |
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} |
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lyrs.addLayer(item); |
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} |
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} |
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PersistentState state = null;
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state = persManager.getState(lyrs, true);
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if (state.getContext().getErrors() != null) { |
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throw state.getContext().getErrors();
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} |
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return state;
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} |
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/**
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* Remosves the layers from the their parent
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* @param actives
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* @param mc
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* @return
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*/
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public static boolean removeLayers(FLayer[] actives, MapContext mc) { |
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if (actives == null || actives.length == 0) { |
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return false; |
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} |
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for (int i = 0; i < actives.length; i++) { |
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if (actives[i].isEditing() && actives[i].isAvailable()) {
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JOptionPane.showMessageDialog(
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(Component) PluginServices.getMainFrame(),
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Messages.getText("no_se_puede_borrar_una_capa_en_edicion"),
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Messages.getText("eliminar_capa"),
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JOptionPane.WARNING_MESSAGE);
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return false; |
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} |
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} |
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mc.beginAtomicEvent(); |
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for (int i = actives.length - 1; i >= 0; i--) { |
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try {
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// actives[i].getParentLayer().removeLayer(actives[i]);
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// FLayers lyrs=getMapContext().getLayers();
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// lyrs.addLayer(actives[i]);
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actives[i].getParentLayer().removeLayer(actives[i]); |
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// Cierra todas las ventanas asociadas a la capa
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IWindow[] wList =
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PluginServices.getMDIManager().getAllWindows(); |
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for (int j = 0; j < wList.length; j++) { |
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String name = wList[j].getWindowInfo().getAdditionalInfo();
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for (int k = 0; k < actives.length; k++) { |
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if (name != null && actives != null |
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&& actives[k] != null
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&& actives[k].getName() != null
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&& name.compareTo(actives[k].getName()) == 0)
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PluginServices.getMDIManager() |
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.closeWindow(wList[j]); |
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} |
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} |
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} catch (CancelationException e1) {
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JOptionPane.showMessageDialog((Component) PluginServices |
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.getMainFrame(), Messages |
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.getText("No_ha_sido_posible_realizar_la_operacion"),
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Messages.getText("eliminar_capa"),
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JOptionPane.WARNING_MESSAGE);
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logger.info("Error while removing layers.", e1);
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return false; |
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} |
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} |
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mc.endAtomicEvent(); |
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Project project = |
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((ProjectExtension) PluginServices |
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.getExtension(ProjectExtension.class)).getProject(); |
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project.setModified(true);
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PluginServices.getMainFrame().enableControls(); |
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return true; |
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} |
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/**
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* Adds layers to target {@link FLayers}
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*
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* @param clipboard_root
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* @param target_root
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* @return
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*/
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public static boolean addLayers(FLayers clipboard_root, FLayers target_root) { |
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if (clipboard_root == null || clipboard_root.getLayersCount() == 0) { |
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return false; |
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} |
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int n = clipboard_root.getLayersCount();
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FLayer item = null;
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for (int i = 0; i < n; i++) { |
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item = clipboard_root.getLayer(i); |
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target_root.addLayer(item); |
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} |
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return true; |
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} |
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} |