/jEdit/tags/jedit-4-2-pre14/org/gjt/sp/jedit/gui/AboutDialog.java
Java | 235 lines | 165 code | 41 blank | 29 comment | 7 complexity | e9d4cae3a693fd49b335cbedc69e83d1 MD5 | raw file
Possible License(s): BSD-3-Clause, AGPL-1.0, Apache-2.0, LGPL-2.0, LGPL-3.0, GPL-2.0, CC-BY-SA-3.0, LGPL-2.1, GPL-3.0, MPL-2.0-no-copyleft-exception, IPL-1.0
- /*
- * AboutDialog.java - About jEdit dialog box
- * :tabSize=8:indentSize=8:noTabs=false:
- * :folding=explicit:collapseFolds=1:
- *
- * Copyright (C) 2000, 2001, 2002 Slava Pestov
- *
- * 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 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 org.gjt.sp.jedit.gui;
- //{{{ Imports
- import javax.swing.border.*;
- import javax.swing.*;
- import java.awt.event.*;
- import java.awt.*;
- import java.util.*;
- import org.gjt.sp.jedit.*;
- //}}}
- public class AboutDialog extends EnhancedDialog
- {
- //{{{ AboutDialog constructor
- public AboutDialog(View view)
- {
- super(view,jEdit.getProperty("about.title"),true);
- JPanel content = new JPanel(new BorderLayout());
- content.setBorder(new EmptyBorder(12,12,12,12));
- setContentPane(content);
- content.add(BorderLayout.CENTER,new AboutPanel());
- JPanel buttonPanel = new JPanel();
- buttonPanel.setLayout(new BoxLayout(buttonPanel,BoxLayout.X_AXIS));
- buttonPanel.setBorder(new EmptyBorder(12,0,0,0));
- buttonPanel.add(Box.createGlue());
- close = new JButton(jEdit.getProperty("common.close"));
- close.addActionListener(new ActionHandler());
- getRootPane().setDefaultButton(close);
- buttonPanel.add(close);
- buttonPanel.add(Box.createGlue());
- content.add(BorderLayout.SOUTH,buttonPanel);
- pack();
- setResizable(false);
- setLocationRelativeTo(view);
- show();
- } //}}}
- //{{{ ok() method
- public void ok()
- {
- dispose();
- } //}}}
- //{{{ cancel() method
- public void cancel()
- {
- dispose();
- } //}}}
- // private members
- private JButton close;
- //{{{ ActionHandler class
- class ActionHandler implements ActionListener
- {
- public void actionPerformed(ActionEvent evt)
- {
- dispose();
- }
- } //}}}
- //{{{ AboutPanel class
- static class AboutPanel extends JComponent
- {
- ImageIcon image;
- Vector text;
- int scrollPosition;
- AnimationThread thread;
- int maxWidth;
- FontMetrics fm;
- public static int TOP = 120;
- public static int BOTTOM = 30;
- AboutPanel()
- {
- setFont(UIManager.getFont("Label.font"));
- fm = getFontMetrics(getFont());
- setForeground(new Color(96,96,96));
- image = new ImageIcon(getClass().getResource(
- "/org/gjt/sp/jedit/icons/about.png"));
- setBorder(new MatteBorder(1,1,1,1,Color.gray));
- text = new Vector(50);
- StringTokenizer st = new StringTokenizer(
- jEdit.getProperty("about.text"),"\n");
- while(st.hasMoreTokens())
- {
- String line = st.nextToken();
- text.addElement(line);
- maxWidth = Math.max(maxWidth,
- fm.stringWidth(line) + 10);
- }
- scrollPosition = -250;
- thread = new AnimationThread();
- }
- public void paintComponent(Graphics g)
- {
- g.setColor(new Color(96,96,96));
- image.paintIcon(this,g,1,1);
- FontMetrics fm = g.getFontMetrics();
- String[] args = { jEdit.getVersion() };
- String version = jEdit.getProperty("about.version",args);
- g.drawString(version,(getWidth() - fm.stringWidth(version)) / 2,
- getHeight() - 5);
- g = g.create((getWidth() - maxWidth) / 2,TOP,maxWidth,
- getHeight() - TOP - BOTTOM);
- int height = fm.getHeight();
- int firstLine = scrollPosition / height;
- int firstLineOffset = height - scrollPosition % height;
- int lines = (getHeight() - TOP - BOTTOM) / height;
- int y = firstLineOffset;
- for(int i = 0; i <= lines; i++)
- {
- if(i + firstLine >= 0 && i + firstLine < text.size())
- {
- String line = (String)text.get(i + firstLine);
- g.drawString(line,(maxWidth - fm.stringWidth(line))/2,y);
- }
- y += fm.getHeight();
- }
- }
- public Dimension getPreferredSize()
- {
- return new Dimension(1 + image.getIconWidth(),
- 1 + image.getIconHeight());
- }
- public void addNotify()
- {
- super.addNotify();
- thread.start();
- }
- public void removeNotify()
- {
- super.removeNotify();
- thread.kill();
- }
- class AnimationThread extends Thread
- {
- private boolean running = true;
- private long last;
- AnimationThread()
- {
- super("About box animation thread");
- setPriority(Thread.MIN_PRIORITY);
- }
-
- public void kill()
- {
- running = false;
- }
- public void run()
- {
- FontMetrics fm = getFontMetrics(getFont());
- int max = (text.size() * fm.getHeight());
- while (running)
- {
- scrollPosition += 2;
- if(scrollPosition > max)
- scrollPosition = -250;
- if(last != 0)
- {
- long frameDelay =
- System.currentTimeMillis()
- - last;
- try
- {
- Thread.sleep(
- 75
- - frameDelay);
- }
- catch(Exception e)
- {
- }
- }
- last = System.currentTimeMillis();
- repaint(getWidth() / 2 - maxWidth,
- TOP,maxWidth * 2,
- getHeight() - TOP - BOTTOM);
- }
- }
- }
- } //}}}
- }