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[CIShell-SVN] SF.net SVN: cishell: [261] trunk/clients/gui/org.cishell.reference.gui. persistence/src/org/cishell/reference/gui/persistence/load/LoadDataChooser. java
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From: <hu...@us...> - 2006-10-11 20:23:53
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Revision: 261
http://svn.sourceforge.net/cishell/?rev=261&view=rev
Author: huangb
Date: 2006-10-11 13:23:45 -0700 (Wed, 11 Oct 2006)
Log Message:
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rename the class from LoadPersisterChooser to LoadDataChooser
Added Paths:
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trunk/clients/gui/org.cishell.reference.gui.persistence/src/org/cishell/reference/gui/persistence/load/LoadDataChooser.java
Copied: trunk/clients/gui/org.cishell.reference.gui.persistence/src/org/cishell/reference/gui/persistence/load/LoadDataChooser.java (from rev 242, trunk/clients/gui/org.cishell.reference.gui.persistence/src/org/cishell/reference/gui/persistence/load/LoadPersisterChooser.java)
===================================================================
--- trunk/clients/gui/org.cishell.reference.gui.persistence/src/org/cishell/reference/gui/persistence/load/LoadDataChooser.java (rev 0)
+++ trunk/clients/gui/org.cishell.reference.gui.persistence/src/org/cishell/reference/gui/persistence/load/LoadDataChooser.java 2006-10-11 20:23:45 UTC (rev 261)
@@ -0,0 +1,200 @@
+/*
+ * InfoVis CyberInfrastructure: A Data-Code-Compute Resource for Research
+ * and Education in Information Visualization (http://iv.slis.indiana.edu/).
+ *
+ * Created on Jan 24, 2005 at Indiana University.
+ */
+package org.cishell.reference.gui.persistence.load;
+
+import java.util.ArrayList;
+import java.io.File;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.custom.StyleRange;
+import org.eclipse.swt.custom.StyledText;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Group;
+import org.eclipse.swt.widgets.List;
+import org.eclipse.swt.widgets.Shell;
+
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceReference;
+import org.osgi.service.log.LogService;
+
+import org.cishell.framework.CIShellContext;
+import org.cishell.framework.algorithm.AlgorithmFactory;
+import org.cishell.framework.data.BasicData;
+import org.cishell.framework.data.Data;
+
+import org.cishell.reference.gui.common.AbstractDialog;
+
+/**
+ *
+ * @author Team IVC (Weixia Huang, James Ellis)
+ */
+public class LoadDataChooser extends AbstractDialog {
+ private File theFile;
+ private LogService logger;
+
+ private ServiceReference[] persisterArray;
+ private List persisterList;
+ private StyledText detailPane;
+ private CIShellContext ciContext;
+ private BundleContext bContext;
+ private ArrayList returnList;
+
+ private static final String[] details_prop_names =
+ {"format_name", "supported_file_extension", "format_description",
+ "restorable_model_name", "restorable_model_description" };
+ private static final String[] details_prop_name_descriptions =
+ {"Format name", "Supported file extension", "Format description",
+ "Restorable model name", "Restorable model description" };
+
+ public LoadDataChooser(String title, File theFile,
+ Shell parent, CIShellContext ciContext, BundleContext bContext,
+ ServiceReference[] persisterArray, ArrayList returnList){
+ super(parent, title, AbstractDialog.QUESTION);
+ this.ciContext = ciContext;
+ this.bContext = bContext;
+ this.persisterArray = persisterArray;
+ this.returnList = returnList;
+
+ this.theFile = theFile;
+
+ this.logger = (LogService) ciContext.getService(LogService.class.getName());
+//shall this part be moved out of the code?
+ setDescription("The file you have selected can be loaded"
+ + " using the following formats.\n"
+ + "Please select one of them.");
+ setDetails("This dialog allows the user to choose among all available " +
+ "formats for loading the selected data model. Choose any of the formats " +
+ "to continue loading the dataset.");
+ }
+
+ private Composite initGUI(Composite parent) {
+ Composite content = new Composite(parent, SWT.NONE);
+
+ GridLayout layout = new GridLayout();
+ layout.numColumns = 2;
+ content.setLayout(layout);
+
+ Group persisterGroup = new Group(content, SWT.NONE);
+//shall this label be moved out of the code?
+ persisterGroup.setText("Loaded by");
+ persisterGroup.setLayout(new FillLayout());
+ GridData persisterListGridData = new GridData(GridData.FILL_BOTH);
+ persisterListGridData.widthHint = 200;
+ persisterGroup.setLayoutData(persisterListGridData);
+
+ persisterList = new List(persisterGroup, SWT.H_SCROLL |SWT.V_SCROLL | SWT.SINGLE);
+// initPersisterArray();
+ initPersisterList();
+ persisterList.addSelectionListener(new SelectionAdapter(){
+ public void widgetSelected(SelectionEvent e) {
+ List list = (List)e.getSource();
+ int selection = list.getSelectionIndex();
+ if(selection != -1){
+ updateDetailPane(persisterArray[selection]);
+ }
+ }
+ });
+
+ Group detailsGroup = new Group(content, SWT.NONE);
+// shall this label be moved out of the code?
+ detailsGroup.setText("Details");
+ detailsGroup.setLayout(new FillLayout());
+ GridData detailsGridData = new GridData(GridData.FILL_BOTH);
+ detailsGridData.widthHint = 200;
+ detailsGroup.setLayoutData(detailsGridData);
+
+ detailPane = initDetailPane(detailsGroup);
+
+ persisterList.setSelection(0);
+ updateDetailPane(persisterArray[0]);
+
+ return content;
+ }
+
+ private void initPersisterList(){
+ for (int i = 0; i < persisterArray.length; ++i) {
+
+ String name = (String)persisterArray[i].getProperty("converter_name");
+
+ // if someone was sloppy enough to not provide a name, then use the
+ // name of the class instead.
+ if (name == null || name.length() == 0)
+ name = persisterArray[i].getClass().getName();
+ persisterList.add(name);
+ }
+ }
+
+
+ private StyledText initDetailPane(Group detailsGroup) {
+ StyledText detailPane = new StyledText(detailsGroup, SWT.H_SCROLL | SWT.V_SCROLL);
+ detailPane.setEditable(false);
+ detailPane.getCaret().setVisible(false);
+ return detailPane;
+ }
+
+ private void updateDetailPane(ServiceReference persister) {
+
+ detailPane.setText("");
+ for (int i=0; i<details_prop_names.length; i++){
+ String val = (String) persister.getProperty(details_prop_names[i]);
+
+ StyleRange styleRange = new StyleRange();
+ styleRange.start = detailPane.getText().length();
+ detailPane.append(details_prop_name_descriptions[i] + ":\n");
+ styleRange.length = details_prop_names[i].length() + 1;
+ styleRange.fontStyle = SWT.BOLD;
+ detailPane.setStyleRange(styleRange);
+
+ detailPane.append(val + "\n");
+
+ }
+
+ }
+
+ private void selectionMade(int selectedIndex) {
+
+ logger.log(LogService.LOG_INFO, "Loaded: "+theFile.getPath());
+ AlgorithmFactory persister =(AlgorithmFactory) bContext.getService(persisterArray[selectedIndex]);
+ Data[] dm = new Data[]{new BasicData(theFile.getPath(),String.class.getName())};
+ dm = persister.createAlgorithm(dm, null, ciContext).execute();
+ for(int i = 0; i<dm.length; i++){
+ returnList.add(dm[i]);
+ }
+ close(true);
+ }
+
+ public void createDialogButtons(Composite parent) {
+ Button select = new Button(parent, SWT.PUSH);
+ select.setText("Select");
+ select.addSelectionListener(new SelectionAdapter(){
+ public void widgetSelected(SelectionEvent e) {
+ int index = persisterList.getSelectionIndex();
+ if(index != -1){
+ selectionMade(index);
+ }
+ }
+ });
+
+ Button cancel = new Button(parent, SWT.NONE);
+ cancel.setText("Cancel");
+ cancel.addSelectionListener(new SelectionAdapter(){
+ public void widgetSelected(SelectionEvent e) {
+ close(false);
+ }
+ });
+ }
+
+ public Composite createContent(Composite parent) {
+ return initGUI(parent);
+ }
+}
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