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/*******************************************************************************
* Copyright (c) 2010, 2013 Ericsson
*
* 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:
* Yuriy Vashchuk - Initial API and implementation
* Xavier Raynaud - add cut/copy/paste/dnd support
* based on Francois Chouinard ProjectView code.
*/
package org.eclipse.linuxtools.tmf.ui.views.filter;
import java.io.IOException;
import javax.xml.parsers.ParserConfigurationException;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.linuxtools.internal.tmf.ui.Activator;
import org.eclipse.linuxtools.internal.tmf.ui.Messages;
import org.eclipse.linuxtools.tmf.core.filter.model.ITmfFilterTreeNode;
import org.eclipse.linuxtools.tmf.core.filter.model.TmfFilterNode;
import org.eclipse.linuxtools.tmf.core.filter.model.TmfFilterRootNode;
import org.eclipse.linuxtools.tmf.core.filter.xml.TmfFilterXMLParser;
import org.eclipse.linuxtools.tmf.core.filter.xml.TmfFilterXMLWriter;
import org.eclipse.linuxtools.tmf.ui.views.TmfView;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IActionBars;
import org.xml.sax.SAXException;
/**
* View that contain UI to the TMF filter.
*
* @version 1.0
* @author Yuriy Vashchuk
*/
public class FilterView extends TmfView {
/** ID for the Filter view */
public static final String ID = "org.eclipse.linuxtools.tmf.ui.views.filter"; //$NON-NLS-1$
private static final Image SAVE_IMAGE = Activator.getDefault().getImageFromPath("/icons/elcl16/save_button.gif"); //$NON-NLS-1$
private static final Image ADD_IMAGE = Activator.getDefault().getImageFromPath("/icons/elcl16/add_button.gif"); //$NON-NLS-1$
private static final Image IMPORT_IMAGE = Activator.getDefault().getImageFromPath("/icons/elcl16/import_button.gif"); //$NON-NLS-1$
private static final Image EXPORT_IMAGE = Activator.getDefault().getImageFromPath("/icons/elcl16/export_button.gif"); //$NON-NLS-1$
// ------------------------------------------------------------------------
// Main data structures
// ------------------------------------------------------------------------
private FilterViewer fViewer;
private final ITmfFilterTreeNode fRoot;
private final IWorkspace fWorkspace;
private SaveAction fSaveAction;
private AddAction fAddAction;
private ExportAction fExportAction;
private ImportAction fImportAction;
/**
* Getter for the Filter Tree Root
*
* @return The root of builded tree
*/
public ITmfFilterTreeNode getFilterRoot() {
return fRoot;
}
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
/**
* Default Constructor
*/
public FilterView() {
super("Filter"); //$NON-NLS-1$
fWorkspace = ResourcesPlugin.getWorkspace();
try {
fWorkspace.getRoot().refreshLocal(IResource.DEPTH_INFINITE, null);
} catch (CoreException e) {
Activator.getDefault().logError("Error refreshing workspace", e); //$NON-NLS-1$
}
fRoot = new TmfFilterRootNode();
for (ITmfFilterTreeNode node : FilterManager.getSavedFilters()) {
fRoot.addChild(node);
}
}
/**
* Refresh the tree widget
*/
public void refresh() {
fViewer.refresh();
}
/**
* Setter for selection
*
* @param node
* The node to select
*/
public void setSelection(ITmfFilterTreeNode node) {
fViewer.setSelection(node, true);
}
// ------------------------------------------------------------------------
// ViewPart
// ------------------------------------------------------------------------
@Override
public void createPartControl(Composite parent) {
fViewer = new FilterViewer(parent, SWT.NONE);
fViewer.setInput(fRoot);
contributeToActionBars();
fViewer.addSelectionChangedListener(new ISelectionChangedListener() {
@Override
public void selectionChanged(SelectionChangedEvent event) {
if (!(event.getSelection().isEmpty()) && event.getSelection() instanceof IStructuredSelection) {
fExportAction.setEnabled(true);
} else {
fExportAction.setEnabled(false);
}
}
});
this.getSite().setSelectionProvider(fViewer.getTreeViewer());
MenuManager menuManager = fViewer.getMenuManager();
this.getSite().registerContextMenu(menuManager, fViewer.getTreeViewer());
}
/**
* @return the ITmfFilterTreeNode currently selected
*/
ITmfFilterTreeNode getSelection() {
return fViewer.getSelection();
}
@Override
public void setFocus() {
fViewer.setFocus();
}
@Override
public String toString() {
return "[FilterView]"; //$NON-NLS-1$
}
/**
* Builds the menu toolbar
*/
private void contributeToActionBars() {
IActionBars bars = getViewSite().getActionBars();
// fillLocalPullDown(bars.getMenuManager());
fillLocalToolBar(bars.getToolBarManager());
}
/**
* Build the popup menu
*
* @param manager
* The manager to build
*/
private void fillLocalToolBar(IToolBarManager manager) {
fSaveAction = new SaveAction();
fSaveAction.setImageDescriptor(ImageDescriptor.createFromImage(SAVE_IMAGE));
fSaveAction.setToolTipText(Messages.FilterView_SaveActionToolTipText);
fAddAction = new AddAction();
fAddAction.setImageDescriptor(ImageDescriptor.createFromImage(ADD_IMAGE));
fAddAction.setToolTipText(Messages.FilterView_AddActionToolTipText);
fExportAction = new ExportAction();
fExportAction.setImageDescriptor(ImageDescriptor.createFromImage(EXPORT_IMAGE));
fExportAction.setToolTipText(Messages.FilterView_ExportActionToolTipText);
fImportAction = new ImportAction();
fImportAction.setImageDescriptor(ImageDescriptor.createFromImage(IMPORT_IMAGE));
fImportAction.setToolTipText(Messages.FilterView_ImportActionToolTipText);
manager.add(fSaveAction);
manager.add(new Separator("add_delete")); //$NON-NLS-1$
manager.add(fAddAction);
manager.add(new Separator("edit")); //$NON-NLS-1$
manager.add(new Separator());
manager.add(fExportAction);
manager.add(fImportAction);
}
private class SaveAction extends Action {
@Override
public void run() {
FilterManager.setSavedFilters(fRoot.getChildren());
}
}
private class AddAction extends Action {
@Override
public void run() {
TmfFilterNode newNode = new TmfFilterNode(fRoot, ""); //$NON-NLS-1$
refresh();
setSelection(newNode);
}
}
private class ExportAction extends Action {
@Override
public void run() {
try {
FileDialog dlg = new FileDialog(new Shell(), SWT.SAVE);
dlg.setFilterNames(new String[] { Messages.FilterView_FileDialogFilterName + " (*.filter.xml)" }); //$NON-NLS-1$
dlg.setFilterExtensions(new String[] { "*.filter.xml" }); //$NON-NLS-1$
String fn = dlg.open();
if (fn != null) {
TmfFilterXMLWriter writerXML = new TmfFilterXMLWriter(fRoot);
writerXML.saveTree(fn);
}
} catch (ParserConfigurationException e) {
Activator.getDefault().logError("Error parsing filter xml file", e); //$NON-NLS-1$
}
}
}
private class ImportAction extends Action {
@Override
public void run() {
if (fViewer != null) {
ITmfFilterTreeNode root = null;
try {
FileDialog dlg = new FileDialog(new Shell(), SWT.OPEN);
dlg.setFilterNames(new String[] { Messages.FilterView_FileDialogFilterName + " (*.filter.xml)" }); //$NON-NLS-1$
dlg.setFilterExtensions(new String[] { "*.filter.xml" }); //$NON-NLS-1$
TmfFilterXMLParser parserXML = null;
String fn = dlg.open();
if (fn != null) {
parserXML = new TmfFilterXMLParser(fn);
root = parserXML.getTree();
}
} catch (SAXException e) {
Activator.getDefault().logError("Error importing filter xml file", e); //$NON-NLS-1$
} catch (IOException e) {
Activator.getDefault().logError("Error importing filter xml file", e); //$NON-NLS-1$
}
if (root != null) {
for (ITmfFilterTreeNode node : root.getChildren()) {
if (node instanceof TmfFilterNode) {
fRoot.addChild(node);
refresh();
fViewer.setSelection(node);
}
}
}
}
}
}
}
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