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/*******************************************************************************
* Copyright (c) 2006 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - Jeff Briggs, Henry Hughes, Ryan Morse
*******************************************************************************/
package org.eclipse.linuxtools.internal.systemtap.ui.graphing.actions;
import java.io.File;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.linuxtools.internal.systemtap.ui.graphing.Localization;
import org.eclipse.linuxtools.systemtap.graphingapi.core.datasets.IDataSet;
import org.eclipse.linuxtools.systemtap.structures.listeners.ITabListener;
import org.eclipse.linuxtools.systemtap.ui.graphing.GraphDisplaySet;
import org.eclipse.linuxtools.systemtap.ui.graphing.views.GraphSelectorEditor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
import org.eclipse.ui.PlatformUI;
/**
* This action handles exporting all of the data that was collected for the DataSet. It
* exports everything as a table, that can easily be read back in at a later time.
* @author Ryan Morse
*/
public class ExportDataSetAction extends Action implements IWorkbenchWindowActionDelegate {
@Override
public void init(IWorkbenchWindow window) {
fWindow = window;
}
/**
* This is the main method of the action. It handles getting the active dataset,
* and then saving it to a file that can be accessed later.
* @param act The action that fired this method.
*/
@Override
public void run(IAction act) {
File f = null;
IDataSet data = getDataSet();
if(null != data) {
f = getFile();
}
if(f != null && data != null) {
data.writeToFile(f);
}
}
/**
* This method retreives the active <code>DataSet</code> from the <code>GraphSelectorView</code>. If no
* DataSet is active it will return null.
* @return The IDataSet in tha active display set.
*/
public IDataSet getDataSet() {
IViewPart ivp = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().findView(GraphSelectorEditor.ID);
IDataSet data = null;
GraphDisplaySet gds = ((GraphSelectorEditor)ivp).getActiveDisplaySet();
if(null != gds) {
data = gds.getDataSet();
}
return data;
}
/**
* This method will display a dialog box for the user to select a
* location to save the graph image.
* @return The File selected to save the image to.
*/
public File getFile() {
String path = null;
FileDialog dialog= new FileDialog(fWindow.getShell(), SWT.SAVE);
dialog.setText(Localization.getString("ExportDataSetAction.NewFile")); //$NON-NLS-1$
path = dialog.open();
if(null == path) {
return null;
}
return new File(path);
}
@Override
public void selectionChanged(IAction a, ISelection s) {
action = a;
action.setEnabled(false);
buildEnablementChecks();
}
/**
* This method is used to generate the checks to see it this button
* should be enabled or not.
*/
private void buildEnablementChecks() {
IViewPart ivp = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().findView(GraphSelectorEditor.ID);
if(null != ivp) {
final GraphSelectorEditor gsv = (GraphSelectorEditor)ivp;
action.setEnabled(null != gsv.getActiveDisplaySet());
gsv.addTabListener(new ITabListener() {
@Override
public void tabClosed() {
action.setEnabled(null != gsv.getActiveDisplaySet());
}
@Override
public void tabOpened() {
action.setEnabled(true);
}
@Override
public void tabChanged() {}
});
}
}
/**
* Removes all internal references in this class. Nothing should make any references
* to anyting in this class after calling the dispose method.
*/
@Override
public void dispose() {
fWindow = null;
action = null;
}
private IWorkbenchWindow fWindow;
private IAction action;
}
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