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package ij.io;
import ij.*;
import ij.gui.*;
import ij.plugin.frame.Recorder;
import ij.util.Java2;
import java.awt.*;
import java.io.*;
import javax.swing.*;
import javax.swing.filechooser.*;
/** This class displays a dialog box that allows the user can select a directory. */
public class DirectoryChooser {
private String directory;
private String title;
/** Display a dialog using the specified title. */
public DirectoryChooser(String title) {
this.title = title;
if (IJ.isMacOSX())
getDirectoryUsingFileDialog(title);
else {
String macroOptions = Macro.getOptions();
if (macroOptions!=null)
directory = Macro.getValue(macroOptions, title, null);
if (directory==null) {
if (EventQueue.isDispatchThread())
getDirectoryUsingJFileChooserOnThisThread(title);
else
getDirectoryUsingJFileChooser(title);
}
}
}
// runs JFileChooser on event dispatch thread to avoid possible thread deadlocks
void getDirectoryUsingJFileChooser(final String title) {
Java2.setSystemLookAndFeel();
try {
EventQueue.invokeAndWait(new Runnable() {
public void run() {
JFileChooser chooser = new JFileChooser();
chooser.setDialogTitle(title);
chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
String defaultDir = OpenDialog.getDefaultDirectory();
if (defaultDir!=null) {
File f = new File(defaultDir);
if (IJ.debugMode)
IJ.log("DirectoryChooser,setSelectedFile: "+f);
chooser.setSelectedFile(f);
}
chooser.setApproveButtonText("Select");
if (chooser.showOpenDialog(null)==JFileChooser.APPROVE_OPTION) {
File file = chooser.getSelectedFile();
directory = file.getAbsolutePath();
if (!directory.endsWith(File.separator))
directory += File.separator;
OpenDialog.setDefaultDirectory(directory);
}
}
});
} catch (Exception e) {}
}
// Choose a directory using JFileChooser on the current thread
void getDirectoryUsingJFileChooserOnThisThread(final String title) {
Java2.setSystemLookAndFeel();
try {
JFileChooser chooser = new JFileChooser();
chooser.setDialogTitle(title);
chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
String defaultDir = OpenDialog.getDefaultDirectory();
if (defaultDir!=null) {
File f = new File(defaultDir);
if (IJ.debugMode)
IJ.log("DirectoryChooser,setSelectedFile: "+f);
chooser.setSelectedFile(f);
}
chooser.setApproveButtonText("Select");
if (chooser.showOpenDialog(null)==JFileChooser.APPROVE_OPTION) {
File file = chooser.getSelectedFile();
directory = file.getAbsolutePath();
if (!directory.endsWith(File.separator))
directory += File.separator;
OpenDialog.setDefaultDirectory(directory);
}
} catch (Exception e) {}
}
// On Mac OS X, we can select directories using the native file open dialog
void getDirectoryUsingFileDialog(String title) {
boolean saveUseJFC = Prefs.useJFileChooser;
Prefs.useJFileChooser = false;
System.setProperty("apple.awt.fileDialogForDirectories", "true");
String dir=null, name=null;
String defaultDir = OpenDialog.getDefaultDirectory();
if (defaultDir!=null) {
File f = new File(defaultDir);
dir = f.getParent();
name = f.getName();
}
if (IJ.debugMode)
IJ.log("DirectoryChooser: dir=\""+dir+"\", file=\""+name+"\"");
OpenDialog od = new OpenDialog(title, dir, name);
if (od.getDirectory()==null)
directory = null;
else
directory = od.getDirectory() + od.getFileName() + "/";
if (directory!=null)
OpenDialog.setDefaultDirectory(directory);
System.setProperty("apple.awt.fileDialogForDirectories", "false");
Prefs.useJFileChooser = saveUseJFC;
}
/** Returns the directory selected by the user. */
public String getDirectory() {
if (IJ.debugMode)
IJ.log("DirectoryChooser.getDirectory: "+directory);
if (Recorder.record && !IJ.isMacOSX())
Recorder.recordPath(title, directory);
return directory;
}
/** Sets the default directory presented in the dialog. */
public static void setDefaultDirectory(String dir) {
if (dir==null || (new File(dir)).isDirectory())
OpenDialog.setDefaultDirectory(dir);
}
//private void setSystemLookAndFeel() {
// try {
// UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
// } catch(Throwable t) {}
//}
}
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