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'databene commons' is an open source Java library by Volker Bergmann.
It provides extensions to the Java core library by utility classes, abstract concepts
and concrete implementations.
/*
* Copyright (C) 2004-2014 Volker Bergmann ([email protected]).
* All rights reserved.
*
* Licensed 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.databene.commons.ui.awt;
import java.awt.Component;
import java.awt.FileDialog;
import java.awt.Frame;
import java.io.File;
import org.databene.commons.Assert;
import org.databene.commons.SystemInfo;
import org.databene.commons.ui.FileOperation;
import org.databene.commons.ui.FileTypeSupport;
import org.databene.commons.ui.FileChooser;
/**
* AWT based implementation of the {@link FileChooser} interface.
*
* Created at 14.12.2008 14:36:28
* @since 0.5.13
* @author Volker Bergmann
*/
public class AwtFileChooser extends FileDialog implements FileChooser {
private static final long serialVersionUID = -3217299586317875276L;
FileTypeSupport supportedTypes;
public AwtFileChooser(String prompt, FileOperation operation, FileTypeSupport supportedTypes) {
super((Frame) null, prompt, (operation == FileOperation.OPEN ? FileDialog.LOAD : FileDialog.SAVE));
Assert.notNull(supportedTypes, "supportedTypes");
Assert.notNull(operation, "operation");
this.supportedTypes = supportedTypes;
}
@Override
public File chooseFile(Component owner) {
if (supportedTypes == FileTypeSupport.directoriesOnly)
System.setProperty("apple.awt.fileDialogForDirectories", "true");
setVisible(true);
System.setProperty("apple.awt.fileDialogForDirectories", "false");
return getSelectedFile();
}
@Override
public void setCurrentDirectory(File currentDirectory) {
if (currentDirectory == null)
currentDirectory = new File(SystemInfo.getCurrentDir());
setDirectory(currentDirectory.getAbsolutePath());
}
@Override
public void setSelectedFile(File file) {
setDirectory(file.getParent());
setFile(file.getName());
}
@Override
public File getSelectedFile() {
if (getFile() == null)
return null;
return new File(getDirectory(), getFile());
}
}