Java tutorial
/** * Aptana Studio * Copyright (c) 2005-2011 by Appcelerator, Inc. All Rights Reserved. * Licensed under the terms of the GNU Public License (GPL) v3 (with exceptions). * Please see the license.html included with this distribution for details. * Any modifications to this file must keep this entire header intact. */ package com.aptana.editor.php.internal.ui.preferences; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.TitleAreaDialog; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.ViewerComparator; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Image; 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.Display; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.ISharedImages; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.plugin.AbstractUIPlugin; import com.aptana.editor.php.epl.PHPEplPlugin; import com.aptana.editor.php.internal.builder.IPHPLibrary; import com.aptana.editor.php.internal.builder.UserLibrary; /** * @author Pavel Petrochenko */ public class PHPLibraryDialog extends TitleAreaDialog { private Image titleImage; private Text nameText; private TableViewer viewer; private UserLibrary library; private IPHPLibrary[] existing; public PHPLibraryDialog(Shell parentShell, UserLibrary library, IPHPLibrary[] existing) { super(parentShell); this.library = library; this.existing = existing; titleImage = AbstractUIPlugin .imageDescriptorFromPlugin(PHPEplPlugin.PLUGIN_ID, "/icons/full/wizban/addlibrary_wiz.png") //$NON-NLS-1$ .createImage(); } @Override protected Control createDialogArea(Composite parent) { Composite body = new Composite(parent, SWT.NONE); body.setLayout(new GridLayout(2, false)); body.setLayoutData(new GridData(GridData.FILL_BOTH)); Label label = new Label(body, SWT.NONE); label.setText(Messages.PHPLibraryDialog_libraryName); nameText = new Text(body, SWT.BORDER); nameText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); if (library != null) { nameText.setText(library.getName()); } nameText.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { validate(); } }); Group pComp = new Group(body, SWT.NONE); pComp.setText(Messages.PHPLibraryDialog_libraryContent); pComp.setLayout(new GridLayout(2, false)); GridData layoutData = new GridData(GridData.FILL_BOTH); layoutData.horizontalSpan = 2; layoutData.minimumHeight = 200; pComp.setLayoutData(layoutData); viewer = new TableViewer(pComp, SWT.BORDER); viewer.setComparator(new ViewerComparator()); viewer.setContentProvider(new ArrayContentProvider()); viewer.setLabelProvider(new LabelProvider() { public String getText(Object element) { return element.toString(); } public Image getImage(Object element) { return PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJ_FOLDER); } }); Composite buttons = new Composite(pComp, SWT.NONE); GridLayout layout = new GridLayout(1, false); layout.marginHeight = 0; if (library != null) { viewer.setInput(library.getDirectories().toArray()); } else { viewer.setInput(new String[0]); // $codepro.audit.disable reusableImmutables } buttons.setLayout(layout); Button add = new Button(buttons, SWT.NONE); add.setText(Messages.PHPLibraryDialog_addFolder); add.addSelectionListener(new SelectionListener() { public void widgetDefaultSelected(SelectionEvent e) { } public void widgetSelected(SelectionEvent e) { DirectoryDialog directoryDialog = new DirectoryDialog(Display.getCurrent().getActiveShell()); directoryDialog.setText(Messages.PHPLibraryDialog_selectFolder); String open = directoryDialog.open(); viewer.add(open); } }); add.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); Button remove = new Button(buttons, SWT.NONE); remove.addSelectionListener(new SelectionListener() { public void widgetDefaultSelected(SelectionEvent e) { } public void widgetSelected(SelectionEvent e) { IStructuredSelection selection = (IStructuredSelection) viewer.getSelection(); for (Object o : selection.toArray()) { viewer.remove(o); } } }); remove.setText(Messages.PHPLibraryDialog_removeSelected); remove.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); buttons.setLayoutData(new GridData(GridData.FILL_VERTICAL)); viewer.getControl().setLayoutData(new GridData(GridData.FILL_BOTH)); Control createDialogArea = super.createDialogArea(parent); setMessage(Messages.PHPLibraryDialog_libraryConfigureMessage); setTitleImage(titleImage); setTitle(Messages.PHPLibraryDialog_libraryConfigureTitle); buttons.setLayoutData(new GridData(GridData.FILL_VERTICAL)); return createDialogArea; } @Override protected Control createButtonBar(Composite parent) { Control createButtonBar = super.createButtonBar(parent); validate(); return createButtonBar; } protected void validate() { String text = nameText.getText().trim(); Button button = getButton(Dialog.OK); if (text.length() == 0) { setErrorMessage(Messages.PHPLibraryDialog_emptyLibraryNameError); button.setEnabled(false); return; } for (IPHPLibrary l : existing) { if (l != library && l.getId().equals(text)) { setErrorMessage(Messages.PHPLibraryDialog_uniqueLibraryNameError); button.setEnabled(false); return; } } setErrorMessage(null); button.setEnabled(true); } public boolean close() { String[] dirs = new String[viewer.getTable().getItemCount()]; for (int a = 0; a < dirs.length; a++) { dirs[a] = (String) viewer.getElementAt(a); } library = new UserLibrary(nameText.getText(), dirs); boolean close = super.close(); titleImage.dispose(); return close; } public UserLibrary getResult() { return library; } }