~ubuntu-branches/ubuntu/utopic/eclipse-eclox/utopic

/*******************************************************************************

 * Copyright (C) 2003-2006, 2013, Guillaume Brocker

 * 

 * 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:

 *     Guillaume Brocker - Initial API and implementation

 *

 ******************************************************************************/ 

 

package eclox.ui.editor.editors;

 

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.events.SelectionListener;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.Button;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.ui.forms.widgets.FormToolkit;

 

 

public class FileEditor extends TextEditor {

        /**

         * the push button for browsing the file system

         */

        private Button  browseFileSystemButton;

        

        /**

         * Implements the selection listener attached to the push buttons.

         */

        class MySelectionListener implements SelectionListener {

 

                /**

                 * @see org.eclipse.swt.events.SelectionListener#widgetDefaultSelected(org.eclipse.swt.events.SelectionEvent)

                 */

                public void widgetDefaultSelected(SelectionEvent e) {

                        if( e.widget == browseFileSystemButton ) {

                                browseFileSystem();

                        }

                }

 

                /**

                 * @see org.eclipse.swt.events.SelectionListener#widgetSelected(org.eclipse.swt.events.SelectionEvent)

                 */

                public void widgetSelected(SelectionEvent e) {

                        if( e.widget == browseFileSystemButton ) {

                                browseFileSystem();

                        }

                }

                

        }

        

        public void createContent(Composite parent, FormToolkit formToolkit) {

                super.createContent(parent, formToolkit);

                

                // Create controls and their associated layout data.

                SelectionListener       selectionListener = new MySelectionListener();

                GridLayout                      layout                          = (GridLayout) parent.getLayout();

                

                layout.numColumns = 2;

                

                browseFileSystemButton = formToolkit.createButton( parent, "Browse...", 0 );

                browseFileSystemButton.addSelectionListener( selectionListener );

        }

 

        /**

         * @see eclox.ui.editor.editors.TextEditor#dispose()

         */

        public void dispose() {

                // Local cleaning.

                browseFileSystemButton.dispose();

                

                // Default cleaning.

                super.dispose();

        }

        

        /**

         * Browses the file system for a path and updates the managed text field.

         */

        private void browseFileSystem() {

                String  result;

                result = Convenience.browseFileSystemForFile( text.getShell(), getInput().getOwner(), getInput().getValue() );

                if( result!= null ) {

                        super.text.setText( result );

                }

        }

 

        /**

         * @see eclox.ui.editor.editors.TextEditor#setEnabled(boolean)

         */

        public void setEnabled(boolean enabled) {

                assert browseFileSystemButton != null;

                

                browseFileSystemButton.setEnabled(enabled);

                super.setEnabled(enabled);

        }

        

        

 

}