Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2017 IBM Corporation and others. * * This program and the accompanying materials * are made available under the terms of the Eclipse Public License 2.0 * which accompanies this distribution, and is available at * https://www.eclipse.org/legal/epl-2.0/ * * SPDX-License-Identifier: EPL-2.0 * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.swt.examples.addressbook; import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter; /* Imports */ import java.util.ResourceBundle; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ShellListener; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.MessageBox; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; /** * SearchDialog is a simple class that uses <code>org.eclipse.swt</code> * libraries to implement a basic search dialog. */ public class SearchDialog { private static ResourceBundle resAddressBook = ResourceBundle.getBundle("examples_addressbook"); Shell shell; Text searchText; Combo searchArea; Label searchAreaLabel; Button matchCase; Button matchWord; Button findButton; Button down; FindListener findHandler; /** * Class constructor that sets the parent shell and the table widget that * the dialog will search. * * @param parent Shell * The shell that is the parent of the dialog. */ public SearchDialog(Shell parent) { shell = new Shell(parent, SWT.CLOSE | SWT.BORDER | SWT.TITLE); GridLayout layout = new GridLayout(); layout.numColumns = 2; shell.setLayout(layout); shell.setText(resAddressBook.getString("Search_dialog_title")); shell.addShellListener(ShellListener.shellClosedAdapter(e -> { // don't dispose of the shell, just hide it for later use e.doit = false; shell.setVisible(false); })); Label label = new Label(shell, SWT.LEFT); label.setText(resAddressBook.getString("Dialog_find_what")); searchText = new Text(shell, SWT.BORDER); GridData gridData = new GridData(GridData.FILL_HORIZONTAL); gridData.widthHint = 200; searchText.setLayoutData(gridData); searchText.addModifyListener(e -> { boolean enableFind = (searchText.getCharCount() != 0); findButton.setEnabled(enableFind); }); searchAreaLabel = new Label(shell, SWT.LEFT); searchArea = new Combo(shell, SWT.DROP_DOWN | SWT.READ_ONLY); gridData = new GridData(GridData.FILL_HORIZONTAL); gridData.widthHint = 200; searchArea.setLayoutData(gridData); matchCase = new Button(shell, SWT.CHECK); matchCase.setText(resAddressBook.getString("Dialog_match_case")); gridData = new GridData(); gridData.horizontalSpan = 2; matchCase.setLayoutData(gridData); matchWord = new Button(shell, SWT.CHECK); matchWord.setText(resAddressBook.getString("Dialog_match_word")); gridData = new GridData(); gridData.horizontalSpan = 2; matchWord.setLayoutData(gridData); Group direction = new Group(shell, SWT.NONE); gridData = new GridData(); gridData.horizontalSpan = 2; direction.setLayoutData(gridData); direction.setLayout(new FillLayout()); direction.setText(resAddressBook.getString("Dialog_direction")); Button up = new Button(direction, SWT.RADIO); up.setText(resAddressBook.getString("Dialog_dir_up")); up.setSelection(false); down = new Button(direction, SWT.RADIO); down.setText(resAddressBook.getString("Dialog_dir_down")); down.setSelection(true); Composite composite = new Composite(shell, SWT.NONE); gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL); gridData.horizontalSpan = 2; composite.setLayoutData(gridData); layout = new GridLayout(); layout.numColumns = 2; layout.makeColumnsEqualWidth = true; composite.setLayout(layout); findButton = new Button(composite, SWT.PUSH); findButton.setText(resAddressBook.getString("Dialog_find")); findButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END)); findButton.setEnabled(false); findButton.addSelectionListener(widgetSelectedAdapter(e -> { if (!findHandler.find()) { MessageBox box = new MessageBox(shell, SWT.ICON_INFORMATION | SWT.OK | SWT.PRIMARY_MODAL); box.setText(shell.getText()); box.setMessage(resAddressBook.getString("Cannot_find") + "\"" + searchText.getText() + "\""); box.open(); } })); Button cancelButton = new Button(composite, SWT.PUSH); cancelButton.setText(resAddressBook.getString("Cancel")); cancelButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING)); cancelButton.addSelectionListener(widgetSelectedAdapter(e -> shell.setVisible(false))); shell.pack(); } public String getSearchAreaLabel(String label) { return searchAreaLabel.getText(); } public String[] getsearchAreaNames() { return searchArea.getItems(); } public boolean getMatchCase() { return matchCase.getSelection(); } public boolean getMatchWord() { return matchWord.getSelection(); } public String getSearchString() { return searchText.getText(); } public boolean getSearchDown() { return down.getSelection(); } public int getSelectedSearchArea() { return searchArea.getSelectionIndex(); } public void open() { if (shell.isVisible()) { shell.setFocus(); } else { shell.open(); } searchText.setFocus(); } public void setSearchAreaNames(String[] names) { for (String name : names) { searchArea.add(name); } searchArea.select(0); } public void setSearchAreaLabel(String label) { searchAreaLabel.setText(label); } public void setMatchCase(boolean match) { matchCase.setSelection(match); } public void setMatchWord(boolean match) { matchWord.setSelection(match); } public void setSearchDown(boolean searchDown) { down.setSelection(searchDown); } public void setSearchString(String searchString) { searchText.setText(searchString); } public void setSelectedSearchArea(int index) { searchArea.select(index); } public void addFindListener(FindListener listener) { this.findHandler = listener; } public void removeFindListener(FindListener listener) { this.findHandler = null; } }