Java tutorial
/////////////////////////////////////////////////////////////////////////////// // // PACKAGE : com.astra.ses.spell.gui.dialogs // // FILE : DictionaryNameDialog.java // // DATE : Jul 14, 2014 // // Copyright (C) 2008, 2014 SES ENGINEERING, Luxembourg S.A.R.L. // // By using this software in any way, you are agreeing to be bound by // the terms of this license. // // 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 // // NO WARRANTY // EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE PROGRAM IS PROVIDED // ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER // EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR // CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A // PARTICULAR PURPOSE. Each Recipient is solely responsible for determining // the appropriateness of using and distributing the Program and assumes all // risks associated with its exercise of rights under this Agreement , // including but not limited to the risks and costs of program errors, // compliance with applicable laws, damage to or loss of data, programs or // equipment, and unavailability or interruption of operations. // // DISCLAIMER OF LIABILITY // EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, NEITHER RECIPIENT NOR ANY // CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION // LOST PROFITS), HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) // ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE PROGRAM OR THE // EXERCISE OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE // POSSIBILITY OF SUCH DAMAGES. // // Contributors: // SES ENGINEERING - initial API and implementation and/or initial documentation // // PROJECT : SPELL // /////////////////////////////////////////////////////////////////////////////// package com.astra.ses.spell.gui.dialogs; import java.util.ArrayList; import java.util.List; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.TitleAreaDialog; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.swt.SWT; import org.eclipse.swt.events.VerifyEvent; import org.eclipse.swt.events.VerifyListener; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import com.astra.ses.spell.gui.Activator; /******************************************************************************* * ******************************************************************************/ public class DictionaryNameDialog extends TitleAreaDialog { /** Holds the dialog image icon */ private Image m_image; /** Holds the names of the dictionary to edit */ private List<String> m_dictNames; /** Holds the name of the selected dictionary */ private Text m_selectedName; private String m_selectedNameStr; /*************************************************************************** * Constructor * * @param shell * The parent shell **************************************************************************/ public DictionaryNameDialog(Shell shell) { super(shell); // Obtain the image for the dialog icon ImageDescriptor descr = Activator.getImageDescriptor("icons/dlg_configuration.png"); m_dictNames = new ArrayList<String>(); m_image = descr.createImage(); m_selectedNameStr = null; } /*************************************************************************** * Called when the dialog is about to close. * * @return The superclass return value. **************************************************************************/ public boolean close() { m_image.dispose(); return super.close(); } /*************************************************************************** * Creates the dialog contents. * * @param parent * The base composite of the dialog * @return The resulting contents **************************************************************************/ protected Control createContents(Composite parent) { Control contents = super.createContents(parent); setTitle("Edit dictionary"); setTitleImage(m_image); return contents; } /*************************************************************************** * Create the dialog area contents. * * @param parent * The base composite of the dialog * @return The resulting contents **************************************************************************/ protected Control createDialogArea(Composite parent) { Composite top = new Composite(parent, SWT.NONE); top.setLayout(new GridLayout(1, true)); top.setLayoutData(new GridData(GridData.FILL_BOTH)); Label label = new Label(top, SWT.NONE); label.setText("Type the name of the dictionary or data container to edit:"); label.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); m_selectedName = new Text(top, SWT.BORDER); m_selectedName.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); m_selectedName.setText(""); m_selectedName.addVerifyListener(new VerifyListener() { @Override public void verifyText(VerifyEvent ev) { boolean ok = !m_selectedName.getText().trim().isEmpty(); getButton(IDialogConstants.OK_ID).setEnabled(ok); if (ok) { setErrorMessage(null); m_selectedNameStr = m_selectedName.getText(); } else { setErrorMessage("Must provide a dictionary or data container name"); m_selectedNameStr = null; } } }); setErrorMessage("Must provide a dictionary or data container name"); return parent; } /*************************************************************************** * Create the button bar buttons. * * @param parent * The Button Bar. **************************************************************************/ protected void createButtonsForButtonBar(Composite parent) { createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, true); createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, false); getButton(IDialogConstants.OK_ID).setEnabled(false); } /*************************************************************************** * Called when one of the buttons of the button bar is pressed. * * @param buttonId * The button identifier. **************************************************************************/ protected void buttonPressed(int buttonId) { setReturnCode(buttonId); switch (buttonId) { case IDialogConstants.OK_ID: m_selectedNameStr = m_selectedName.getText(); if (m_selectedNameStr.trim().isEmpty()) m_selectedNameStr = null; break; case IDialogConstants.CANCEL_ID: m_selectedNameStr = null; break; } close(); } /*************************************************************************** * **************************************************************************/ public String getSelectedDictionary() { return m_selectedNameStr; } }