Java tutorial
/******************************************************************************* * Copyright (c) 2005-2010 Polarion Software. * 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: * Igor Burilo (Polarion Software) - initial API and implementation *******************************************************************************/ package org.eclipse.team.svn.revision.graph.preferences; import java.io.File; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.preference.IPreferenceStore; 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.LabelProvider; import org.eclipse.jface.viewers.ListViewer; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.viewers.ViewerSorter; import org.eclipse.swt.SWT; import org.eclipse.swt.events.KeyAdapter; import org.eclipse.swt.events.KeyEvent; 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.DirectoryDialog; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.List; import org.eclipse.swt.widgets.Listener; import org.eclipse.team.svn.revision.graph.SVNRevisionGraphMessages; import org.eclipse.team.svn.revision.graph.SVNRevisionGraphPlugin; import org.eclipse.team.svn.revision.graph.cache.RepositoryCacheInfo; import org.eclipse.team.svn.revision.graph.cache.RepositoryCachesManager; import org.eclipse.team.svn.ui.composite.PathSelectionComposite; import org.eclipse.team.svn.ui.dialog.DefaultDialog; import org.eclipse.team.svn.ui.utility.UIMonitorUtility; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.PlatformUI; /** * Revision graph preferences page implementation * * @author Igor Burilo */ public class SVNTeamRevisionGraphPage extends AbstractSVNRevisionGraphPreferencesPage implements IPropertyChangeListener { protected RepositoryCachesManager cachesManager; protected ListViewer cachesViewer; protected PathSelectionComposite pathSelectionComposite; protected Button removeButton; protected Button exportButton; protected Button importButton; protected Button skipErrorsButton; protected boolean isSkipFetchErrors; public SVNTeamRevisionGraphPage() { this.cachesManager = SVNRevisionGraphPlugin.instance().getRepositoryCachesManager(); this.cachesManager.addListener(this); } public void init(IWorkbench workbench) { this.setDescription(SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_Description); } protected Control createContentsImpl(Composite parent) { Composite composite = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); layout.marginWidth = layout.marginHeight = 0; composite.setLayout(layout); composite.setLayoutData(new GridData(GridData.FILL_BOTH)); this.createCacheComposite(composite); Label separator = new Label(composite, SWT.HORIZONTAL | SWT.SEPARATOR); GridData data = new GridData(GridData.FILL_HORIZONTAL); separator.setLayoutData(data); separator.setVisible(false); //other options this.skipErrorsButton = new Button(composite, SWT.CHECK); data = new GridData(GridData.FILL_HORIZONTAL); this.skipErrorsButton.setLayoutData(data); this.skipErrorsButton.setText(SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_SkipErrors); this.skipErrorsButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { SVNTeamRevisionGraphPage.this.isSkipFetchErrors = SVNTeamRevisionGraphPage.this.skipErrorsButton .getSelection(); } }); //Setting context help PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, "org.eclipse.team.svn.help.revisionGraphPreferencesContext"); //$NON-NLS-1$ return composite; } protected void createCacheComposite(Composite parent) { Composite composite = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); layout.marginWidth = layout.marginHeight = 0; layout.numColumns = 2; composite.setLayout(layout); composite.setLayoutData(new GridData(GridData.FILL_BOTH)); this.createCachesViewer(composite); this.createButtons(composite); this.createDirectorySelection(composite); } protected void createCachesViewer(Composite parent) { this.cachesViewer = new ListViewer(parent); List list = this.cachesViewer.getList(); list.setLayoutData(new GridData(GridData.FILL_BOTH)); this.cachesViewer.setLabelProvider(new LabelProvider() { public String getText(Object element) { RepositoryCacheInfo cacheInfo = (RepositoryCacheInfo) element; return cacheInfo.getRepositoryName(); } }); this.cachesViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { SVNTeamRevisionGraphPage.this.selectionChanged(); } }); this.cachesViewer.setSorter(new ViewerSorter() { public int compare(Viewer viewer, Object e1, Object e2) { String str1 = ((RepositoryCacheInfo) e1).getRepositoryName(); String str2 = ((RepositoryCacheInfo) e2).getRepositoryName(); return str1.compareToIgnoreCase(str2); } }); this.cachesViewer.getControl().addKeyListener(new KeyAdapter() { public void keyPressed(KeyEvent e) { if (e.keyCode == SWT.DEL) { SVNTeamRevisionGraphPage.this.removeCaches(); } } }); } protected void createButtons(Composite parent) { Composite buttons = new Composite(parent, SWT.NONE); buttons.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING)); GridLayout layout = new GridLayout(); layout.marginHeight = layout.marginWidth = 0; buttons.setLayout(layout); //remove this.removeButton = new Button(buttons, SWT.PUSH); this.removeButton.setText(SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_Remove); GridData data = new GridData(); data.horizontalAlignment = GridData.FILL; data.widthHint = DefaultDialog.computeButtonWidth(this.removeButton); this.removeButton.setLayoutData(data); this.removeButton.addListener(SWT.Selection, new Listener() { public void handleEvent(Event e) { SVNTeamRevisionGraphPage.this.removeCaches(); } }); //export this.exportButton = new Button(buttons, SWT.PUSH); this.exportButton.setText(SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_Export); data = new GridData(); data.horizontalAlignment = GridData.FILL; data.widthHint = DefaultDialog.computeButtonWidth(this.exportButton); this.exportButton.setLayoutData(data); this.exportButton.addListener(SWT.Selection, new Listener() { public void handleEvent(Event e) { SVNTeamRevisionGraphPage.this.exportCaches(); } }); //import this.importButton = new Button(buttons, SWT.PUSH); this.importButton.setText(SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_Import); data = new GridData(); data.horizontalAlignment = GridData.FILL; data.widthHint = DefaultDialog.computeButtonWidth(this.importButton); this.importButton.setLayoutData(data); this.importButton.addListener(SWT.Selection, new Listener() { public void handleEvent(Event e) { SVNTeamRevisionGraphPage.this.importCaches(); } }); } protected void createDirectorySelection(Composite parent) { Group group = new Group(parent, SWT.NONE); GridLayout layout = new GridLayout(); group.setLayout(layout); GridData data = new GridData(GridData.FILL_HORIZONTAL); data.horizontalSpan = 2; group.setLayoutData(data); group.setText(SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_Group_CacheDirectory); this.pathSelectionComposite = new PathSelectionComposite( SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_Path_Label, SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_Path_Field, SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_Path_BrowseDialogTitle, SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_Path_BrowseDialogDescription, true, group, this); data = new GridData(GridData.FILL_HORIZONTAL); this.pathSelectionComposite.setLayoutData(data); } protected void initializeControls() { //remove old data List list = this.cachesViewer.getList(); if (list.getItemCount() > 0) { list.removeAll(); } //populate list RepositoryCacheInfo[] caches = this.cachesManager.getCaches(); if (caches.length > 0) { this.cachesViewer.add(caches); } this.skipErrorsButton.setSelection(this.isSkipFetchErrors); this.selectionChanged(); } protected void loadDefaultValues(IPreferenceStore store) { String path = SVNRevisionGraphPreferences.getDefaultCacheString(store, SVNRevisionGraphPreferences.CACHE_DIRECTORY_NAME); this.pathSelectionComposite.setSelectedPath(path); this.isSkipFetchErrors = SVNRevisionGraphPreferences.GRAPH_SKIP_ERRORS_DEFAULT; } protected void loadValues(IPreferenceStore store) { String path = SVNRevisionGraphPreferences.getCacheString(store, SVNRevisionGraphPreferences.CACHE_DIRECTORY_NAME); this.pathSelectionComposite.setSelectedPath(path); this.isSkipFetchErrors = SVNRevisionGraphPreferences.getGraphBoolean(store, SVNRevisionGraphPreferences.GRAPH_SKIP_ERRORS); } protected void saveValues(IPreferenceStore store) { SVNRevisionGraphPreferences.setCacheString(store, SVNRevisionGraphPreferences.CACHE_DIRECTORY_NAME, this.pathSelectionComposite.getSelectedPath()); SVNRevisionGraphPreferences.setGraphBoolean(store, SVNRevisionGraphPreferences.GRAPH_SKIP_ERRORS, this.isSkipFetchErrors); } protected void selectionChanged() { IStructuredSelection selection = (IStructuredSelection) this.cachesViewer.getSelection(); int selectionSize = selection.size(); this.removeButton.setEnabled(selectionSize > 0); this.exportButton.setEnabled(selectionSize > 0); } protected RepositoryCacheInfo[] getSelectedCaches() { IStructuredSelection selection = (IStructuredSelection) this.cachesViewer.getSelection(); Object[] objects = selection.toArray(); RepositoryCacheInfo[] caches = new RepositoryCacheInfo[objects.length]; for (int i = 0; i < objects.length; i++) { caches[i] = (RepositoryCacheInfo) objects[i]; } return caches; } protected void removeCaches() { MessageDialog dlg = new MessageDialog(this.getShell(), SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_RemoveConfirm_Title, null, SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_RemoveConfirm_Description, MessageDialog.QUESTION, new String[] { IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL }, 0); if (dlg.open() == 0) { RepositoryCacheInfo[] caches = this.getSelectedCaches(); this.cachesManager.remove(caches); } } protected void exportCaches() { DirectoryDialog fileDialog = new DirectoryDialog(this.getShell()); fileDialog.setText(SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_ExportTitle); fileDialog.setMessage(SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_ExportDescription); String path = fileDialog.open(); if (path != null) { File destinationFolder = new File(path); RepositoryCacheInfo[] caches = this.getSelectedCaches(); this.cachesManager.export(destinationFolder, caches); } } protected void importCaches() { DirectoryDialog fileDialog = new DirectoryDialog(this.getShell()); fileDialog.setText(SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_ImportTitle); fileDialog.setMessage(SVNRevisionGraphMessages.SVNTeamRevisionGraphPage_ImportDescription); String path = fileDialog.open(); if (path != null) { File cacheData = new File(path); this.cachesManager.importCache(cacheData); } } /* (non-Javadoc) * @see org.eclipse.jface.dialogs.DialogPage#dispose() */ @Override public void dispose() { this.cachesManager.removeListener(this); super.dispose(); } /* (non-Javadoc) * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent) */ public void propertyChange(PropertyChangeEvent event) { UIMonitorUtility.getDisplay().syncExec(new Runnable() { public void run() { //react to any changes in caches SVNTeamRevisionGraphPage.this.initializeControls(); } }); } }