Source code: org/gjt/sp/jedit/gui/SplashScreen.java
1 /*
2 * SplashScreen.java - Splash screen
3 * Copyright (C) 1998, 1999, 2000, 2001 Slava Pestov
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 */
19
20 package org.gjt.sp.jedit.gui;
21
22 import java.awt.*;
23 import org.gjt.sp.jedit.jEdit;
24 import org.gjt.sp.util.Log;
25
26 /**
27 * The splash screen displayed on startup.<p>
28 *
29 * This file only uses AWT APIs so that it can be displayed as soon as possible
30 * after jEdit is launched.
31 */
32 public class SplashScreen extends Canvas
33 {
34 public SplashScreen()
35 {
36 setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
37 setBackground(Color.white);
38
39 Font font = new Font("Dialog",Font.PLAIN,10);
40 setFont(font);
41 fm = getFontMetrics(font);
42
43 image = getToolkit().getImage(
44 getClass().getResource("/org/gjt/sp/jedit/icons/splash.png"));
45 MediaTracker tracker = new MediaTracker(this);
46 tracker.addImage(image,0);
47
48 try
49 {
50 tracker.waitForAll();
51 }
52 catch(Exception e)
53 {
54 Log.log(Log.ERROR,this,e);
55 }
56
57 win = new Window(new Frame());
58
59 Dimension screen = getToolkit().getScreenSize();
60 Dimension size = new Dimension(image.getWidth(this) + 2,
61 image.getHeight(this) + 2 + PROGRESS_HEIGHT);
62 win.setSize(size);
63
64 win.setLayout(new BorderLayout());
65 win.add(BorderLayout.CENTER,this);
66
67 win.setLocation((screen.width - size.width) / 2,
68 (screen.height - size.height) / 2);
69 win.validate();
70 win.show();
71
72 /*synchronized(this)
73 {
74 try
75 {
76 wait();
77 }
78 catch(InterruptedException ie)
79 {
80 Log.log(Log.ERROR,this,ie);
81 }
82 }*/
83 }
84
85 public void dispose()
86 {
87 win.dispose();
88 }
89
90 public synchronized void advance()
91 {
92 progress++;
93 repaint();
94
95 // wait for it to be painted to ensure progress is updated
96 // continuously
97 try
98 {
99 wait();
100 }
101 catch(InterruptedException ie)
102 {
103 Log.log(Log.ERROR,this,ie);
104 }
105 }
106
107 public void update(Graphics g)
108 {
109 paint(g);
110 }
111
112 public synchronized void paint(Graphics g)
113 {
114 Dimension size = getSize();
115
116 if(offscreenImg == null)
117 {
118 offscreenImg = createImage(size.width,size.height);
119 offscreenGfx = offscreenImg.getGraphics();
120 offscreenGfx.setFont(getFont());
121 }
122
123 offscreenGfx.setColor(Color.gray);
124 offscreenGfx.drawRect(0,0,size.width - 1,size.height - 1);
125
126 offscreenGfx.drawImage(image,1,1,this);
127
128 // XXX: This should not be hardcoded
129 offscreenGfx.setColor(new Color(168,173,189));
130 offscreenGfx.fillRect(1,image.getHeight(this) + 1,
131 ((win.getWidth() - 2) * progress) / 5,PROGRESS_HEIGHT);
132
133 offscreenGfx.setColor(Color.gray);
134
135 String str = "Version " + jEdit.getVersion();
136
137 offscreenGfx.drawString(str,
138 (getWidth() - fm.stringWidth(str)) / 2,
139 image.getHeight(this)+1 - fm.getDescent() - 10);
140
141 g.drawImage(offscreenImg,0,0,this);
142
143 notify();
144 }
145
146 // private members
147 private FontMetrics fm;
148 private Window win;
149 private Image image;
150 private Image offscreenImg;
151 private Graphics offscreenGfx;
152 private int progress;
153 private static final int PROGRESS_HEIGHT = 20;
154 }