Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * */ package org.apache.directory.studio.aciitemeditor.dialogs; import java.text.ParseException; import org.apache.directory.studio.aciitemeditor.ACIITemConstants; import org.apache.directory.studio.aciitemeditor.ACIItemValueWithContext; import org.apache.directory.studio.aciitemeditor.Activator; import org.apache.directory.studio.aciitemeditor.widgets.ACIItemTabFolderComposite; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.ErrorDialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Shell; /** * The main dialog of the ACI item editor. * * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> */ public class ACIItemDialog extends Dialog { private static final int FORMAT_BUTTON = 987654321; private static final int CHECK_SYNTAX_BUTTON = 876543210; /** The context containing the initial value, passed by the constructor */ private ACIItemValueWithContext context; /** The resulting value returned by getACIItemValue() */ private String returnValue; /** The child composite with the tabs */ private ACIItemTabFolderComposite tabFolderComposite; /** * Creates a new instance of ACIItemDialog. * * @param parentShell the shell * @param context the context */ public ACIItemDialog(Shell parentShell, ACIItemValueWithContext context) { super(parentShell); super.setShellStyle(super.getShellStyle() | SWT.RESIZE); assert context != null; assert context.getACIItemValue() != null; assert context.getConnection() != null; this.context = context; this.returnValue = null; } /** * Sets the dialog image and text. * * {@inheritDoc} */ protected void configureShell(Shell shell) { super.configureShell(shell); shell.setText(Messages.getString("ACIItemDialog.dialog.text")); //$NON-NLS-1$ shell.setImage(Activator.getDefault().getImage(Messages.getString("ACIItemDialog.dialog.icon"))); //$NON-NLS-1$ } /** * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite) */ protected void createButtonsForButtonBar(Composite parent) { createButton(parent, FORMAT_BUTTON, Messages.getString("ACIItemDialog.button.format"), false); //$NON-NLS-1$ createButton(parent, CHECK_SYNTAX_BUTTON, Messages.getString("ACIItemDialog.button.checkSyntax"), false); //$NON-NLS-1$ createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, false); createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false); } /** * {@inheritDoc} * * This implementation checks if the Format button was pressed. */ protected void buttonPressed(int buttonId) { if (buttonId == FORMAT_BUTTON) { tabFolderComposite.format(); } if (buttonId == CHECK_SYNTAX_BUTTON) { try { tabFolderComposite.getInput(); MessageDialog.openInformation(getShell(), Messages.getString("ACIItemDialog.syntaxOk.title"), //$NON-NLS-1$ Messages.getString("ACIItemDialog.syntaxOk.text")); //$NON-NLS-1$ } catch (ParseException pe) { IStatus status = new Status(IStatus.ERROR, ACIITemConstants.PLUGIN_ID, 1, Messages.getString("ACIItemDialog.error.invalidSyntax"), pe); //$NON-NLS-1$ ErrorDialog.openError(getShell(), Messages.getString("ACIItemDialog.error.title"), null, status); //$NON-NLS-1$ } } // call super implementation super.buttonPressed(buttonId); } /** * Reimplementation: Checks for valid syntax first and sets the return value. */ protected void okPressed() { try { this.returnValue = tabFolderComposite.getInput(); super.okPressed(); } catch (ParseException pe) { IStatus status = new Status(IStatus.ERROR, ACIITemConstants.PLUGIN_ID, 1, Messages.getString("ACIItemDialog.error.invalidSyntax"), pe); //$NON-NLS-1$ ErrorDialog.openError(getShell(), Messages.getString("ACIItemDialog.error.title"), null, status); //$NON-NLS-1$ } } /** * Creates the tabFolderComposite. * * @param parent the parent * * @return the control */ protected Control createDialogArea(Composite parent) { Composite composite = (Composite) super.createDialogArea(parent); GridData gd = new GridData(GridData.FILL_BOTH); gd.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH) * 4 / 3; gd.heightHint = convertVerticalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH) * 4 / 3; composite.setLayoutData(gd); tabFolderComposite = new ACIItemTabFolderComposite(composite, SWT.NONE); // set initial value if (context != null) { tabFolderComposite.setContext(context); tabFolderComposite.setInput(context.getACIItemValue()); } applyDialogFont(composite); return composite; } /** * Returns the string representation of the ACI item. Returns * null if Cancel button was pressed. * * @return the string representation of the ACI item or null */ public String getACIItemValue() { return returnValue; } }