SearchDialog.java

/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * 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
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.examples.addressbook;

/* Imports */
import java.util.ResourceBundle;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.ShellAdapter;
import org.eclipse.swt.events.ShellEvent;
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");

	Button							down;
	Button							findButton;
	FindListener					findHandler;
	Button							matchCase;
	Button							matchWord;
	Combo							searchArea;
	Label							searchAreaLabel;
	Text							searchText;
	Shell							shell;

	/**
	 * 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(SearchDialog.resAddressBook.getString("Search_dialog_title"));
		shell.addShellListener(new ShellAdapter() {
			public void shellClosed(ShellEvent 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(SearchDialog.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(new ModifyListener() {
			public void modifyText(ModifyEvent 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(SearchDialog.resAddressBook.getString("Dialog_match_case"));
		gridData = new GridData();
		gridData.horizontalSpan = 2;
		matchCase.setLayoutData(gridData);

		matchWord = new Button(shell, SWT.CHECK);
		matchWord.setText(SearchDialog.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(SearchDialog.resAddressBook.getString("Dialog_direction"));

		Button up = new Button(direction, SWT.RADIO);
		up.setText(SearchDialog.resAddressBook.getString("Dialog_dir_up"));
		up.setSelection(false);

		down = new Button(direction, SWT.RADIO);
		down.setText(SearchDialog.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(SearchDialog.resAddressBook.getString("Dialog_find"));
		findButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));
		findButton.setEnabled(false);
		findButton.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				if (!findHandler.find()) {
					MessageBox box = new MessageBox(shell, SWT.ICON_INFORMATION | SWT.OK | SWT.PRIMARY_MODAL);
					box.setText(shell.getText());
					box.setMessage(SearchDialog.resAddressBook.getString("Cannot_find") + "\"" + searchText.getText()
							+ "\"");
					box.open();
				}
			}
		});

		Button cancelButton = new Button(composite, SWT.PUSH);
		cancelButton.setText(SearchDialog.resAddressBook.getString("Cancel"));
		cancelButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING));
		cancelButton.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				shell.setVisible(false);
			}
		});

		shell.pack();
	}

	public void addFindListener(FindListener listener) {
		findHandler = listener;
	}

	public boolean getMatchCase() {
		return matchCase.getSelection();
	}

	public boolean getMatchWord() {
		return matchWord.getSelection();
	}

	public String getSearchAreaLabel(String label) {
		return searchAreaLabel.getText();
	}

	public String[] getsearchAreaNames() {
		return searchArea.getItems();
	}

	public boolean getSearchDown() {
		return down.getSelection();
	}

	public String getSearchString() {
		return searchText.getText();
	}

	public int getSelectedSearchArea() {
		return searchArea.getSelectionIndex();
	}

	public void open() {
		if (shell.isVisible())
			shell.setFocus();
		else
			shell.open();
		searchText.setFocus();
	}

	public void removeFindListener(FindListener listener) {
		findHandler = null;
	}

	public void setMatchCase(boolean match) {
		matchCase.setSelection(match);
	}

	public void setMatchWord(boolean match) {
		matchWord.setSelection(match);
	}

	public void setSearchAreaLabel(String label) {
		searchAreaLabel.setText(label);
	}

	public void setSearchAreaNames(String[] names) {
		for (int i = 0; i < names.length; i++)
			searchArea.add(names[i]);
		searchArea.select(0);
	}

	public void setSearchDown(boolean searchDown) {
		down.setSelection(searchDown);
	}

	public void setSearchString(String searchString) {
		searchText.setText(searchString);
	}

	public void setSelectedSearchArea(int index) {
		searchArea.select(index);
	}
}