swingtools.java

著名的开源仿真软件yale

/*
 *  YALE - Yet Another Learning Environment
 *  Copyright (C) 2002, 2003
 *      Simon Fischer, Ralf Klinkenberg, Ingo Mierswa, 
 *          Katharina Morik, Oliver Ritthoff
 *      Artificial Intelligence Unit
 *      Computer Science Department
 *      University of Dortmund
 *      44221 Dortmund,  Germany
 *  email: [e-mail]
 *  web:   http://yale.cs.uni-dortmund.de/
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License as 
 *  published by the Free Software Foundation; either version 2 of the
 *  License, or (at your option) any later version. 
 *
 *  This program is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 *  General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 *  USA.
 */
package edu.udo.cs.yale.gui;

import edu.udo.cs.yale.tools.Tools;
import edu.udo.cs.yale.tools.ParameterService;
import edu.udo.cs.yale.operator.UserError;
import edu.udo.cs.yale.Yale;

import java.io.File;
import java.awt.Color;
import java.awt.Component;
import java.awt.GradientPaint;
import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
import java.awt.Insets;
import javax.swing.JOptionPane;
import javax.swing.JDialog;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.BorderFactory;
import javax.swing.JFileChooser;
import javax.swing.JTextArea;
import javax.swing.JScrollPane;
import javax.swing.JPanel;
import javax.swing.JButton;
import javax.swing.JEditorPane;
import javax.swing.JLabel;

public class SwingTools {

    public static final Color DARK_YELLOW  = new Color(180, 164, 148); 
    public static final Color LIGHT_YELLOW = new Color(206, 184, 163);

    public static final Color DARK_BLUE  = new Color(153, 153, 204);
    public static final Color LIGHT_BLUE = new Color(204, 204, 255);

    public static GradientPaint makeBluePaint(double width, double height) {
	return new GradientPaint(0f, 0f, DARK_BLUE, 
				 (float)width/2, (float)height/2, LIGHT_BLUE,
				 true);
    }

    public static GradientPaint makeYellowPaint(double width, double height) {
	return new GradientPaint(0f, 0f, DARK_YELLOW, 
				 (float)width/2, (float)height/2, LIGHT_YELLOW,
				 true);
    }

    public static void showSimpleErrorMessage(String message, Throwable e) {
	JOptionPane.showMessageDialog(YaleGUI.getMainFrame(), 
				      message + "\n"+
				      Tools.classNameWOPackage(e.getClass())+" caught:\n"+
				      e.getMessage(),
				      "Exception",
				      JOptionPane.ERROR_MESSAGE);
    }

    public static void showErrorMessage(String message, Throwable e) {
	JDialog dialog =  ErrorDialog.create(message, e);
	dialog.setLocationRelativeTo(YaleGUI.getMainFrame());
	dialog.show();
    }

    /** Opens a file chooser with a reasonable start directory. */
    public static File chooseFile(Component parent, File file, boolean open) {
	return chooseFile(parent, file, open, false);
    }

    /** Opens a file chooser with a reasonable start directory.  */
    public static File chooseFile(Component parent, File file, boolean open, boolean onlyDirs) {
	return chooseFile(parent, file, open, onlyDirs, null, null);
    }

    /** Opens a file chooser with a reasonable start directory. onlyDirs indidcates if only files or only 
     *  can be selected. 
     *  @param file The initially selected value of the file chooser dialog
     *  @param open Open or save dialog?
     *  @param onlyDirs Only allow directories to be selected
     *  @param filter Array of Strings, e.g. file extensions
     *  @param filterDescr Human readable description of the filter */
    public static File chooseFile(Component parent, File file, boolean open, boolean onlyDirs,
				  final String filter[], final String filterDescr) {
	if (parent == null) parent = YaleGUI.getMainFrame();

	File directory = null;

	if (file != null) {
	    if (file.isDirectory()) {
		directory = file;
	    } else {
		directory = file.getAbsoluteFile().getParentFile();
	    }
	} else {
	    File experimentFile = (Yale.getExperiment() != null) ? 
		Yale.getExperiment().getExperimentFile() : 
		null;
	    if (experimentFile != null) {
		directory = experimentFile.getAbsoluteFile().getParentFile();
	    } else {
		directory = new File(System.getProperty("user.dir"));
	    }
	}

	JFileChooser fileChooser = new JFileChooser(directory);
	if (onlyDirs)
	    fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
	if (filter != null) {
	    fileChooser.setFileFilter(new javax.swing.filechooser.FileFilter() {
		    public String getDescription() { return filterDescr; }
		    public boolean accept(File f) {
			if (f.isDirectory()) return true;
			for (int i = 0; i < filter.length; i++)
			    if (f.getName().endsWith(filter[i]))
				return true;
			return false;
		    }
		});
	}
	if (file != null) fileChooser.setSelectedFile(file);
	
	int returnValue = open ? fileChooser.showOpenDialog(parent) : fileChooser.showSaveDialog(parent);
	switch (returnValue) {
	case JFileChooser.APPROVE_OPTION:
	    return fileChooser.getSelectedFile();
	default:
	    return null;
	}
    }

}