Java tutorial
/******************************************************************************* * Copyright (c) 2010 the CHISEL group and contributors. * 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: * Del Myers - initial API and implementation *******************************************************************************/ package ca.uvic.chisel.logging.eclipse.internal.ui; import java.util.HashSet; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.preference.PreferencePage; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.CheckStateChangedEvent; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.jface.viewers.ICheckStateListener; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.wizard.WizardDialog; import org.eclipse.swt.SWT; import org.eclipse.swt.events.MouseAdapter; import org.eclipse.swt.events.MouseEvent; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; 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.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchPreferencePage; import org.eclipse.ui.menus.CommandContributionItem; import org.eclipse.ui.menus.CommandContributionItemParameter; import ca.uvic.chisel.logging.eclipse.ILoggingCategory; import ca.uvic.chisel.logging.eclipse.WorkbenchLoggingPlugin; import ca.uvic.chisel.logging.eclipse.internal.LoggingCategory; import ca.uvic.chisel.logging.eclipse.internal.network.UploadJob; public class WorkbenchLoggerPreferencePage extends PreferencePage implements IWorkbenchPreferencePage { private static final String EDIT_COPY = "org.eclipse.ui.edit.copy"; private HashSet<String> enabledCategories; private CheckboxTableViewer viewer; private Button aboutButton; private ComboViewer intervalViewer; public WorkbenchLoggerPreferencePage() { enabledCategories = new HashSet<String>(); } public WorkbenchLoggerPreferencePage(String title) { super(title); } public WorkbenchLoggerPreferencePage(String title, ImageDescriptor image) { super(title, image); } @Override protected Control createContents(Composite parent) { Composite page = new Composite(parent, SWT.NONE); page.setLayout(new GridLayout(2, false)); // create a list viewer that will display all of the // different loggers viewer = CheckboxTableViewer.newCheckList(page, SWT.BORDER | SWT.SINGLE); viewer.setContentProvider(new ArrayContentProvider()); viewer.setLabelProvider(new LoggingCategoryLabelProvider()); viewer.setInput(WorkbenchLoggingPlugin.getDefault().getCategoryManager().getCategories()); // set all of the enabled categories to the checked state boolean stale = false; for (ILoggingCategory category : WorkbenchLoggingPlugin.getDefault().getCategoryManager().getCategories()) { if (category.isEnabled()) { enabledCategories.add(category.getCategoryID()); viewer.setChecked(category, true); } // also set the stale state... used for enabling the upload button. stale |= ((LoggingCategory) category).isStale(); } viewer.addCheckStateListener(new ICheckStateListener() { public void checkStateChanged(CheckStateChangedEvent event) { if (event.getElement() instanceof ILoggingCategory) { ILoggingCategory category = (ILoggingCategory) event.getElement(); if (event.getChecked()) { enabledCategories.add(category.getCategoryID()); } else { enabledCategories.remove(category.getCategoryID()); } } } }); viewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { if (aboutButton != null && !aboutButton.isDisposed()) { aboutButton.setEnabled(!event.getSelection().isEmpty()); } } }); viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); // create a button area Composite buttonArea = new Composite(page, SWT.NONE); buttonArea.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false)); buttonArea.setLayout(new GridLayout()); GridDataFactory gdf = GridDataFactory.createFrom(new GridData(SWT.FILL, SWT.FILL, true, false)); Button selectAll = new Button(buttonArea, SWT.PUSH); selectAll.setText("Select All"); selectAll.setLayoutData(gdf.create()); selectAll.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { viewer.setAllChecked(true); for (ILoggingCategory category : WorkbenchLoggingPlugin.getDefault().getCategoryManager() .getCategories()) { enabledCategories.add(category.getCategoryID()); } } }); Button selectNone = new Button(buttonArea, SWT.PUSH); selectNone.setText("Select None"); selectNone.setLayoutData(gdf.create()); selectNone.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { viewer.setAllChecked(false); enabledCategories.clear(); } }); Control spacer = new Composite(buttonArea, SWT.NONE); GridData d = gdf.create(); d.heightHint = 40; spacer.setLayoutData(d); aboutButton = new Button(buttonArea, SWT.PUSH); aboutButton.setText("About..."); aboutButton.setLayoutData(gdf.create()); aboutButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetDefaultSelected(SelectionEvent e) { widgetSelected(e); } @Override public void widgetSelected(SelectionEvent e) { ISelection selection = viewer.getSelection(); if (selection instanceof IStructuredSelection) { IStructuredSelection ss = (IStructuredSelection) selection; if (!ss.isEmpty() && ss.getFirstElement() instanceof ILoggingCategory) { AboutCategoryDialog dialog = new AboutCategoryDialog(getShell(), (ILoggingCategory) ss.getFirstElement()); dialog.open(); } } } }); aboutButton.setEnabled(false); spacer = new Composite(buttonArea, SWT.NONE); d = gdf.create(); d.heightHint = 40; spacer.setLayoutData(d); Button uploadButton = new Button(buttonArea, SWT.PUSH); uploadButton.setText("Upload Now..."); uploadButton.setLayoutData(gdf.create()); uploadButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { WizardDialog dialog = new WizardDialog(getShell(), new UploadWizard()); dialog.open(); } }); uploadButton.setEnabled(stale); Composite intervalComposite = new Composite(page, SWT.NONE); GridData gd = gdf.create(); gd.grabExcessVerticalSpace = false; gd.grabExcessHorizontalSpace = true; intervalComposite.setLayoutData(gd); intervalComposite.setLayout(new GridLayout(2, false)); Label intervalLabel = new Label(intervalComposite, SWT.NONE); intervalLabel.setText("Upload Interval: "); gd = gdf.create(); gd.grabExcessVerticalSpace = false; gd.grabExcessHorizontalSpace = false; intervalLabel.setLayoutData(gd); intervalViewer = new ComboViewer(intervalComposite, SWT.BORDER | SWT.SINGLE); Long[] intervals = new Long[] { UploadJob.UPLOAD_INTERVAL_DAILY, UploadJob.UPLOAD_INTERVAL_WEEKLY, UploadJob.UPLOAD_INTERVAL_MONTHLY }; intervalViewer.setContentProvider(new ArrayContentProvider()); intervalViewer.setLabelProvider(new LabelProvider() { @Override public String getText(Object element) { if (element instanceof Long) { long interval = (Long) element; if (interval == UploadJob.UPLOAD_INTERVAL_DAILY) { return "Daily"; } else if (interval == UploadJob.UPLOAD_INTERVAL_WEEKLY) { return "Every Seven Days"; } else if (interval == UploadJob.UPLOAD_INTERVAL_MONTHLY) { return "Every Thirty Days"; } } return super.getText(element); } }); intervalViewer.setInput(intervals); long interval = WorkbenchLoggingPlugin.getDefault().getPreferenceStore() .getLong(UploadJob.UPLOAD_INTERVAL_KEY); if (interval <= 0) { interval = WorkbenchLoggingPlugin.getDefault().getPreferenceStore() .getDefaultLong(UploadJob.UPLOAD_INTERVAL_KEY); } intervalViewer.setSelection(new StructuredSelection(interval)); intervalViewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); spacer = new Composite(page, SWT.NONE); gd = gdf.create(); gd.grabExcessVerticalSpace = false; gd.grabExcessHorizontalSpace = false; gd.heightHint = 2; spacer.setLayoutData(gd); Composite uidComposite = new Composite(page, SWT.NONE); uidComposite.setLayout(new GridLayout(2, false)); gd = gdf.create(); gd.grabExcessVerticalSpace = false; gd.grabExcessHorizontalSpace = false; gd.horizontalSpan = 2; uidComposite.setLayoutData(gd); Label uidLabel = new Label(uidComposite, SWT.NONE); uidLabel.setText("User ID:"); gd = gdf.create(); gd.grabExcessVerticalSpace = false; gd.grabExcessHorizontalSpace = false; uidLabel.setLayoutData(gd); final Text uidText = new Text(uidComposite, SWT.SINGLE | SWT.READ_ONLY); uidText.setText(WorkbenchLoggingPlugin.getDefault().getLocalUser()); uidText.addMouseListener(new MouseAdapter() { /* (non-Javadoc) * @see org.eclipse.swt.events.MouseAdapter#mouseUp(org.eclipse.swt.events.MouseEvent) */ @Override public void mouseUp(MouseEvent e) { uidText.selectAll(); } }); MenuManager manager = new MenuManager(); Menu menu = manager.createContextMenu(uidText); uidText.setMenu(menu); CommandContributionItemParameter parameters = new CommandContributionItemParameter( WorkbenchLoggingPlugin.getDefault().getWorkbench(), null, EDIT_COPY, SWT.PUSH); manager.add(new CommandContributionItem(parameters)); return page; } public void init(IWorkbench workbench) { } @Override protected void performApply() { super.performApply(); } @Override public boolean performOk() { for (ILoggingCategory category : WorkbenchLoggingPlugin.getDefault().getCategoryManager().getCategories()) { boolean enabled = enabledCategories.contains(category.getCategoryID()); if (category.isEnabled() != enabled) { category.setEnabled(enabled); } } IPreferenceStore store = WorkbenchLoggingPlugin.getDefault().getPreferenceStore(); IStructuredSelection selection = (IStructuredSelection) intervalViewer.getSelection(); store.setValue(UploadJob.UPLOAD_INTERVAL_KEY, (long) ((Long) selection.getFirstElement())); return super.performOk(); } }