Java tutorial
/////////////////////////////////////////////////////////////////////////////// // // PACKAGE : com.astra.ses.spell.gui.dialogs // // FILE : StringDialog.java // // DATE : 2008-11-21 08:55 // // Copyright (C) 2008, 2010 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 // // SUBPROJECT: SPELL GUI Client // /////////////////////////////////////////////////////////////////////////////// package com.astra.ses.spell.gui.dialogs; 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.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; /******************************************************************************* * @brief Utility dialog for prompting for strings * @date 28/04/08 * @author Rafael Chinchilla (GMV) ******************************************************************************/ public class StringDialog extends TitleAreaDialog { // ========================================================================= // # INSTANCE DATA MEMBERS // ========================================================================= // PRIVATE ----------------------------------------------------------------- /** Holds the dialog message */ private String m_message; /** Holds the long dialog message */ private String m_longMessage; /** Holds the dialog title*/ private String m_title; /** Hide type flag */ private boolean m_hideType; /** Text control */ private Text m_text; /** Holds the dialog image icon */ private Image m_image; /** Holds the user answer */ private String m_answer; // PROTECTED --------------------------------------------------------------- // PUBLIC ------------------------------------------------------------------ // ========================================================================= // # ACCESSIBLE METHODS // ========================================================================= /*************************************************************************** * Constructor **************************************************************************/ public StringDialog(Shell shell, String title, String msg, String longMsg, boolean hideType) { super(shell); // Obtain the image for the dialog icon ImageDescriptor descr = Activator.getImageDescriptor("icons/dlg_question.png"); m_image = descr.createImage(); m_message = msg; m_longMessage = longMsg; m_title = title; m_answer = null; m_text = null; m_hideType = hideType; } /*************************************************************************** * Called when the dialog is about to close. * * @return The superclass return value. **************************************************************************/ public boolean close() { m_image.dispose(); m_text.dispose(); return super.close(); } public String getAnswer() { return m_answer; } // ========================================================================= // # NON-ACCESSIBLE METHODS // ========================================================================= /*************************************************************************** * 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); setMessage(m_message); setTitle(m_title); 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) { // Main composite of the dialog area ----------------------------------- Composite top = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); top.setLayoutData(new GridData(GridData.FILL_BOTH)); layout.marginHeight = 30; layout.marginWidth = 10; layout.marginTop = 5; layout.marginBottom = 10; layout.marginLeft = 10; layout.marginRight = 10; layout.numColumns = 1; top.setLayout(layout); GridData tgd = new GridData(GridData.HORIZONTAL_ALIGN_FILL, GridData.VERTICAL_ALIGN_BEGINNING, true, false); top.setLayoutData(tgd); Label label = new Label(top, SWT.NONE); label.setText(m_longMessage); if (m_hideType) { m_text = new Text(top, SWT.BORDER | SWT.PASSWORD); } else { m_text = new Text(top, SWT.BORDER); } GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL, GridData.VERTICAL_ALIGN_BEGINNING, true, false); gd.verticalIndent = 10; gd.widthHint = 120; m_text.setLayoutData(gd); return parent; } /*************************************************************************** * Create the button bar buttons. * * @param parent * The Button Bar. **************************************************************************/ protected void createButtonsForButtonBar(Composite parent) { createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true); createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false); } /*************************************************************************** * Called when one of the buttons of the button bar is pressed. * * @param buttonId * The button identifier. **************************************************************************/ protected void buttonPressed(int buttonId) { switch (buttonId) { case IDialogConstants.OK_ID: m_answer = m_text.getText(); if (m_answer.length() == 0) { return; } setReturnCode(TitleAreaDialog.OK); break; case IDialogConstants.CANCEL_ID: m_answer = null; setReturnCode(TitleAreaDialog.CANCEL); break; } close(); } // /*************************************************************************** // * Create dialog contents // **************************************************************************/ // protected void createContents( final Shell shell ) // { // shell.setLayout(new GridLayout(2,true)); // // Label label = new Label(shell, SWT.NONE); // label.setText(m_message); // GridData data = new GridData(); // data.horizontalSpan = 2; // label.setLayoutData(data); // // if (m_hideType) // { // m_text = new Text(shell, SWT.BORDER | SWT.PASSWORD); // } // else // { // m_text = new Text(shell, SWT.BORDER); // } // data = new GridData(GridData.FILL_HORIZONTAL); // data.horizontalSpan = 2; // m_text.setLayoutData(data); // // Button ok = new Button(shell, SWT.PUSH); // ok.setText("OK"); // data = new GridData(GridData.FILL_HORIZONTAL); // ok.setLayoutData(data); // ok.addSelectionListener(new SelectionAdapter() { // public void widgetSelected(SelectionEvent event) { // m_input = m_text.getText(); // shell.close(); // } // }); // // Button cancel = new Button(shell, SWT.PUSH); // cancel.setText("Cancel"); // data = new GridData(GridData.FILL_HORIZONTAL); // cancel.setLayoutData(data); // cancel.addSelectionListener(new SelectionAdapter() { // public void widgetSelected(SelectionEvent event) { // m_input = null; // shell.close(); // } // }); // // shell.setDefaultButton(ok);} }