/*******************************************************************************
* Copyright (c) 2000, 2007 IBM Corporation and others.
* 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
*
*******************************************************************************/
package org.eclipse.dltk.internal.debug.ui.log;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.dltk.ui.DLTKUIPlugin;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IMenuListener;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.TextViewer;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.SashForm;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.ui.IWorkbenchActionConstants;
import org.eclipse.ui.contexts.IContextActivation;
import org.eclipse.ui.contexts.IContextService;
import org.eclipse.ui.part.ViewPart;
public class ScriptDebugLogView extends ViewPart {
public static final String VIEW_ID = "org.eclipse.dltk.debug.ui.dbgpLogView"; //$NON-NLS-1$
public static final String THEME_ID = "org.eclipse.dltk.debug.ui.dbgpLogView.txtViewFont"; //$NON-NLS-1$
private final List items = new ArrayList();
private TableViewer viewer;
private TextViewer textViewer;
private IDocument textDocument;
private IPropertyChangeListener fontRegistryChangeListener;
private IContextActivation fContextActivation;
public ScriptDebugLogView() {
super();
}
public void setFocus() {
viewer.getControl().setFocus();
}
public void createPartControl(Composite parent) {
final SashForm sashForm = new SashForm(parent, SWT.HORIZONTAL);
viewer = new TableViewer(sashForm, SWT.H_SCROLL | SWT.V_SCROLL
| SWT.MULTI | SWT.FULL_SELECTION | SWT.VIRTUAL);
viewer.getTable().setHeaderVisible(true);
viewer.getTable().setLinesVisible(true);
addColumn(Messages.Column_Date, 100, true);
addColumn(Messages.Column_Time, 100, true);
addColumn(Messages.Column_Type, 80, true);
addColumn(Messages.Column_Session, 80, true);
addColumn(Messages.Column_Message, 400, false);
viewer.getTable().addListener(SWT.Resize, new Listener() {
public void handleEvent(Event event) {
final Table table = (Table) event.widget;
final int columnCount = table.getColumnCount();
int w = table.getClientArea().width;
for (int i = 0; i < columnCount - 1; ++i) {
w -= table.getColumn(i).getWidth();
}
if (w > 0) {
table.getColumn(columnCount - 1).setWidth(w);
}
}
});
viewer.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
if (event.getSelection() instanceof IStructuredSelection) {
final Object first = ((IStructuredSelection) event
.getSelection()).getFirstElement();
if (first instanceof ScriptDebugLogItem) {
textDocument.set(((ScriptDebugLogItem) first)
.getMessage());
return;
}
}
textDocument.set(""); //$NON-NLS-1$
}
});
viewer.setContentProvider(new ScriptDebugLogContentProvider());
viewer.setLabelProvider(new ScriptDebugLogLabelProvider());
viewer.setInput(items);
textDocument = new Document();
textViewer = new TextViewer(sashForm, SWT.V_SCROLL | SWT.H_SCROLL
| SWT.WRAP | SWT.READ_ONLY);
textViewer.setDocument(textDocument);
fontRegistryChangeListener = new IPropertyChangeListener() {
public void propertyChange(PropertyChangeEvent event) {
handlePropertyChangeEvent(event);
}
};
JFaceResources.getFontRegistry()
.addListener(fontRegistryChangeListener);
updateFont();
sashForm.setWeights(new int[] { 75, 25 });
createActions();
createMenu();
createToolbar();
createContextMenu();
IContextService ctxService = (IContextService) getSite().getService(
IContextService.class);
if (ctxService != null) {
fContextActivation = ctxService
.activateContext(DLTKUIPlugin.CONTEXT_VIEWS);
}
}
public void dispose() {
if (fContextActivation != null) {
IContextService ctxService = (IContextService) getSite()
.getService(IContextService.class);
if (ctxService != null) {
ctxService.deactivateContext(fContextActivation);
}
}
if (fontRegistryChangeListener != null) {
JFaceResources.getFontRegistry().removeListener(
fontRegistryChangeListener);
fontRegistryChangeListener = null;
}
super.dispose();
}
/**
* @param event
*/
protected void handlePropertyChangeEvent(PropertyChangeEvent event) {
final String key = event.getProperty();
if (key.equals(THEME_ID)) {
updateFont();
}
}
private void updateFont() {
textViewer.getTextWidget().setFont(JFaceResources.getFont(THEME_ID));
}
/**
* @param caption
* @param width
*/
private void addColumn(String caption, int width, boolean center) {
final TableColumn column = new TableColumn(viewer.getTable(), SWT.LEFT);
column.setText(caption);
column.setWidth(width);
}
public void append(final ScriptDebugLogItem item) {
synchronized (items) {
items.add(item);
}
final Table table = viewer.getTable();
if (table.isDisposed())
return;
final Display display = table.getDisplay();
if (display.isDisposed())
return;
display.asyncExec(new Runnable() {
public void run() {
viewer.refresh(false, false);
if (table.isDisposed() || table.getDisplay().isDisposed())
return;
final int itemCount = table.getItemCount();
if (itemCount > 0) {
table.showItem(table.getItem(itemCount - 1));
}
}
});
}
private IAction copyAction;
private IAction clearAction;
public void createActions() {
copyAction = new ScriptDebugLogCopyAction(viewer);
clearAction = new Action(Messages.ScriptDebugLogView_clear) {
public void run() {
synchronized (items) {
items.clear();
}
viewer.refresh();
}
};
}
private void createMenu() {
IMenuManager manager = getViewSite().getActionBars().getMenuManager();
manager.add(copyAction);
manager.add(clearAction);
}
private void createToolbar() {
IToolBarManager manager = getViewSite().getActionBars()
.getToolBarManager();
manager.add(copyAction);
manager.add(clearAction);
}
private void createContextMenu() {
// Create menu manager.
MenuManager menuManager = new MenuManager();
menuManager.setRemoveAllWhenShown(true);
menuManager.addMenuListener(new IMenuListener() {
public void menuAboutToShow(IMenuManager manager) {
fillContextMenu(manager);
}
});
// Create menu.
Menu menu = menuManager.createContextMenu(viewer.getControl());
viewer.getControl().setMenu(menu);
// Register menu for extension.
getSite().registerContextMenu(menuManager, viewer);
}
private void fillContextMenu(IMenuManager manager) {
manager.add(copyAction);
manager.add(clearAction);
manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
}
}