Java tutorial
/* * Copyright (C) 2007 SQL Explorer Development Team http://sourceforge.net/projects/eclipsesql * * This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General * Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. * * You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package net.sourceforge.sqlexplorer.plugin.editors; import net.sourceforge.sqlexplorer.IConstants; import net.sourceforge.sqlexplorer.dbproduct.Session; import net.sourceforge.sqlexplorer.plugin.SQLExplorerPlugin; import net.sourceforge.sqlexplorer.sessiontree.model.utility.Dictionary; import net.sourceforge.sqlexplorer.sqleditor.SQLTextViewer; import net.sourceforge.sqlexplorer.sqleditor.actions.ExecSQLAction; import org.apache.commons.lang.StringUtils; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IFolder; 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.core.runtime.IPath; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Path; import org.eclipse.jface.action.Action; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.preference.PreferenceConverter; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.text.Document; import org.eclipse.jface.text.IDocument; import org.eclipse.jface.text.source.ISourceViewer; import org.eclipse.jface.text.source.IVerticalRuler; import org.eclipse.jface.viewers.ILabelProvider; import org.eclipse.jface.viewers.ITreeContentProvider; import org.eclipse.jface.window.Window; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.StyledText; import org.eclipse.swt.custom.VerifyKeyListener; import org.eclipse.swt.events.KeyAdapter; import org.eclipse.swt.events.KeyEvent; import org.eclipse.swt.events.VerifyEvent; import org.eclipse.swt.graphics.FontData; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.IEditorInput; import org.eclipse.ui.IFileEditorInput; import org.eclipse.ui.IPartListener; import org.eclipse.ui.IURIEditorInput; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.editors.text.TextEditor; import org.eclipse.ui.model.WorkbenchContentProvider; import org.eclipse.ui.model.WorkbenchLabelProvider; import org.eclipse.ui.part.FileEditorInput; import org.eclipse.ui.texteditor.IDocumentProvider; import org.eclipse.ui.texteditor.ITextEditorActionDefinitionIds; import org.talend.core.GlobalServiceRegister; import org.talend.core.ITDQRepositoryService; import org.talend.core.model.properties.Item; /** * TextEditor specialisation; encapsulates functionality specific to editing SQL. * * Virtually all of this code came from SQLEditor, which used to be derived directly from TextEditor; SQLEditor now * combines the text editor (here, SQLTextEditor) and the result and messages panes in a single editor, hence this was * separated out for clarity * * Note that MouseClickListener was also moved to a top-level, package-private class for readability * * @modified John Spackman * */ public class SQLTextEditor extends TextEditor { static int i = 0; private SQLEditor editor; private MouseClickListener mcl; private IPartListener partListener; /* package */SQLTextViewer sqlTextViewer; private boolean _enableContentAssist = SQLExplorerPlugin.getDefault().getPluginPreferences() .getBoolean(IConstants.SQL_ASSIST); private IPreferenceStore store; // ADD xqliu 2010-03-23 feature 10675 private static final String DEFAULT_FILE_EXTENSION = ".sql"; // TODO should use the file version property private static final String DEFAULT_VERSION_STRING = "_0.1"; public SQLTextEditor(SQLEditor editor) { super(); this.editor = editor; mcl = new MouseClickListener(editor); store = SQLExplorerPlugin.getDefault().getPreferenceStore(); setPreferenceStore(SQLExplorerPlugin.getDefault().getPreferenceStore()); } @Override protected boolean isLineNumberRulerVisible() { return true; } @Override protected boolean isOverviewRulerVisible() { return true; } @Override protected boolean isPrefQuickDiffAlwaysOn() { return true; } @Override public boolean isChangeInformationShowing() { return true; } @Override public IProgressMonitor getProgressMonitor() { return super.getProgressMonitor(); } /* * (non-Javadoc) * * @see * org.eclipse.ui.texteditor.AbstractDecoratedTextEditor#performSaveAs(org.eclipse.core.runtime.IProgressMonitor) */ @Override protected void performSaveAs(IProgressMonitor progressMonitor) { // PTODO qzhang correct save the sql file. for bug 3860. Shell shell = getSite().getShell(); final IEditorInput input = getEditorInput(); IDocumentProvider provider = getDocumentProvider(); IEditorInput newInput; if (input instanceof IURIEditorInput && !(input instanceof IFileEditorInput)) { super.performSaveAs(progressMonitor); return; } ILabelProvider lp = new WorkbenchLabelProvider(); ITreeContentProvider cp = new WorkbenchContentProvider(); FolderSelectionDialog dialog = new FolderSelectionDialog(shell, lp, cp); if (dialog.open() == Window.CANCEL) { if (progressMonitor != null) { progressMonitor.setCanceled(true); } return; } Object elements = dialog.getResult()[0]; // ADD xqliu 2010-03-08 feature 10675 IResource elem = (IResource) elements; if (elem instanceof IFolder) { IPath filePath = ((IFolder) elem).getFullPath(); filePath = filePath.append(dialog.getFileName() + DEFAULT_FILE_EXTENSION); if (filePath == null) { if (progressMonitor != null) { progressMonitor.setCanceled(true); } return; } IWorkspace workspace = ResourcesPlugin.getWorkspace(); IFile file = workspace.getRoot().getFile(filePath); newInput = new FileEditorInput(file); if (provider == null) { // editor has programmatically been closed while the dialog was open return; } boolean success = false; try { provider.aboutToChange(newInput); // MOD qiongli 2011-4-21 bug 20205.after creating property file,file name is changed(contain version // info),so reset'newInput'. file = createIFile(file, getViewer().getDocument().get()); newInput = new FileEditorInput(file); success = true; } catch (CoreException x) { final IStatus status = x.getStatus(); if (status == null || status.getSeverity() != IStatus.CANCEL) { String title = "The file save failure."; String msg = "The file save failure."; MessageDialog.openError(shell, title, msg); } } finally { provider.changed(newInput); if (success) { setInput(newInput); } } if (progressMonitor != null) { progressMonitor.setCanceled(!success); } } } /** * DOC qzhang Comment method "createIFile". * * @param monitor * @param file * @param content * @throws CoreException */ private IFile createIFile(IFile file, String content) throws CoreException { // MOD qiongli 2011-4-21.bug 20205 .should create sql file and property.use extension of service mechanism. if (GlobalServiceRegister.getDefault().isServiceRegistered(ITDQRepositoryService.class)) { ITDQRepositoryService service = (ITDQRepositoryService) GlobalServiceRegister.getDefault() .getService(ITDQRepositoryService.class); if (service != null) { String fName = StringUtils.removeEnd(StringUtils.removeEnd(file.getName(), DEFAULT_FILE_EXTENSION), DEFAULT_VERSION_STRING); IWorkspace workspace = ResourcesPlugin.getWorkspace(); IPath rootPath = new Path("TDQ_Libraries/Source Files"); Item item = service.createFile(content, file.getProjectRelativePath().removeLastSegments(1).makeRelativeTo(rootPath), fName, file.getFileExtension()); // get the correct path(contain version info) for newInput file in editor. IPath location = file.getLocation(); if (item != null && item.getProperty() != null && location != null) { location = location.removeLastSegments(1); StringBuffer strb = new StringBuffer(); strb.append(location.toString()); String version = item.getProperty().getVersion() == null ? "" : "_" + item.getProperty().getVersion(); strb.append(Path.SEPARATOR).append(fName).append(version).append(DEFAULT_FILE_EXTENSION); location = Path.fromOSString(strb.toString()); file = workspace.getRoot().getFileForLocation(location); } } } return file; } /* * (non-Javadoc) * * @see org.eclipse.ui.texteditor.AbstractTextEditor#createActions() */ @Override protected void createActions() { super.createActions(); if (!_enableContentAssist) { return; } Action action = new Action("Auto-Completion") { @Override public void run() { sqlTextViewer.showAssistance(); } }; // This action definition is associated with the accelerator Ctrl+Space action.setActionDefinitionId(ITextEditorActionDefinitionIds.CONTENT_ASSIST_PROPOSALS); setAction("ContentAssistProposal", action); } @Override public void createPartControl(Composite parent) { super.createPartControl(parent); PlatformUI.getWorkbench().getHelpSystem().setHelp(getSourceViewer().getTextWidget(), SQLExplorerPlugin.PLUGIN_ID + ".SQLEditor"); Object adapter = getAdapter(org.eclipse.swt.widgets.Control.class); if (adapter instanceof StyledText) { StyledText text = (StyledText) adapter; text.setWordWrap( SQLExplorerPlugin.getDefault().getPluginPreferences().getBoolean(IConstants.WORD_WRAP)); FontData[] fData = PreferenceConverter.getFontDataArray(store, IConstants.FONT); if (fData.length > 0) { JFaceResources.getFontRegistry().put(fData[0].toString(), fData); text.setFont(JFaceResources.getFontRegistry().get(fData[0].toString())); } } } @Override protected ISourceViewer createSourceViewer(final Composite parent, IVerticalRuler ruler, int style) { parent.setLayout(new FillLayout()); final Composite myParent = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); layout.marginHeight = layout.marginWidth = layout.horizontalSpacing = layout.verticalSpacing = 0; myParent.setLayout(layout); // create divider line Composite div1 = new Composite(myParent, SWT.NONE); GridData lgid = new GridData(); lgid.grabExcessHorizontalSpace = true; lgid.horizontalAlignment = GridData.FILL; lgid.heightHint = 1; lgid.verticalIndent = 1; div1.setLayoutData(lgid); div1.setBackground(editor.getSite().getShell().getDisplay().getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW)); // create text viewer GridData gid = new GridData(); gid.grabExcessHorizontalSpace = gid.grabExcessVerticalSpace = true; gid.horizontalAlignment = gid.verticalAlignment = GridData.FILL; Dictionary dictionary = null; if (editor.getSession() != null && _enableContentAssist) { dictionary = editor.getSession().getUser().getMetaDataSession().getDictionary(); } sqlTextViewer = new SQLTextViewer(myParent, style, store, dictionary, ruler); sqlTextViewer.getControl().setLayoutData(gid); // create bottom divider line Composite div2 = new Composite(myParent, SWT.NONE); lgid = new GridData(); lgid.grabExcessHorizontalSpace = true; lgid.horizontalAlignment = GridData.FILL; lgid.heightHint = 1; lgid.verticalIndent = 0; div2.setLayoutData(lgid); div2.setBackground(editor.getSite().getShell().getDisplay().getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW)); final SQLEditor thisEditor = editor; sqlTextViewer.getTextWidget().addVerifyKeyListener(new VerifyKeyListener() { private ExecSQLAction _execSQLAction = new ExecSQLAction(thisEditor); @Override public void verifyKey(VerifyEvent event) { if (event.stateMask == SWT.CTRL && event.keyCode == 13) { event.doit = false; _execSQLAction.run(); } } }); sqlTextViewer.getTextWidget().addKeyListener(new KeyAdapter() { @Override public void keyPressed(KeyEvent e) { SQLTextEditor.this.editor.getEditorSite().getPage() .activate(SQLTextEditor.this.editor.getEditorSite().getPart()); } }); myParent.layout(); IDocument dc = new Document(); sqlTextViewer.setDocument(dc); mcl.install(sqlTextViewer); return sqlTextViewer; } public void setNewDictionary(final Dictionary dictionary) { if (editor.getSite() != null && editor.getSite().getShell() != null && editor.getSite().getShell().getDisplay() != null) { editor.getSite().getShell().getDisplay().asyncExec(new Runnable() { @Override public void run() { if (sqlTextViewer != null && !editor.getTitleImage().isDisposed()) { sqlTextViewer.setNewDictionary(dictionary); } } }); } } public void onEditorSessionChanged(Session session) { if (session != null && _enableContentAssist) { setNewDictionary(editor.getSession().getUser().getMetaDataSession().getDictionary()); } else { setNewDictionary(null); } } /* * (non-Javadoc) * * @see org.eclipse.ui.IWorkbenchPart#dispose() */ @Override public void dispose() { if (partListener != null) { editor.getEditorSite().getPage().removePartListener(partListener); } mcl.uninstall(); super.dispose(); } ISourceViewer getViewer() { return getSourceViewer(); } }