client/javacli/TerminalScreen.java

/* 
 * i-scream central monitoring system
 * Copyright (C) 2000-2002 i-scream
 * 
 * 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.
 */

// pjm2@ukc.ac.uk
// class for laying out text in a terminal window. (in Java!)
// After hours of fiddling, anything is possible... ;-)

public class TerminalScreen {
    
    private static final String ESCAPE_SEQUENCE = "[";
    
    public static final int BOLD = 1;
    public static final int BLACK_BG = 7;
    public static final int BLUE = 34;
    public static final int PINK = 35;
    public static final int RED = 31;

    // No-args constructor.
    public TerminalScreen() {
        // reserved.
    }
    
    // Set the cursor position.
    public void gotoxy(int x, int y) {
        System.out.print(ESCAPE_SEQUENCE+y+";"+x+"H");
    }
    
    // Print a string at the current position.
    public void print(String s) {
        System.out.print(s);
    }
    
    // Print a string at the current position with the
    // specified colour.
    public void print(String s, int colour) {
        System.out.print(ESCAPE_SEQUENCE+colour+"m");
        System.out.print(s);
        System.out.print(ESCAPE_SEQUENCE+"0m");
    }

    // Print a string at the current position with a specified
    // foreground and background colour.
    public void print(String s, int colour, int other) {
        System.out.print(ESCAPE_SEQUENCE+other+"m");
        this.print(s, colour);
    }
    
    // Clears the terminal screen and then resets the cursor position.
    public void clear() {
        System.out.print(ESCAPE_SEQUENCE+"2J");
        System.out.print(ESCAPE_SEQUENCE+"1;24r");
    }
    
    // Main method for testing!
    public static void main(String[] args) throws InterruptedException {
        
        TerminalScreen screen = new TerminalScreen();
    
        screen.clear();
        
        screen.gotoxy(34, 10);
        screen.print(" i - s c r e a m ", TerminalScreen.BOLD, TerminalScreen.BLACK_BG);
        screen.gotoxy(27, 12);
        screen.print("Central Monitoring System Client", TerminalScreen.BLUE);
        screen.gotoxy(32,13);
        screen.print("Unix/Linux version 1.0");
        
        
        screen.gotoxy(1,1);
        screen.print("Top left");
        screen.gotoxy(79,24);
        screen.print("E");
        
        screen.gotoxy(1,24);
        
        Thread.sleep(3000);
        
        screen.clear();
        
        
        
    }
    
}
Revision:	1.3
Committed:	Sat May 18 18:15:56 2002 UTC (22 years, 6 months ago) by tdb
Branch:	MAIN
Changes since 1.2:	+19 -0 lines
Log Message:	i-scream is now licensed under the GPL. I've added the GPL headers to every source file, and put a full copy of the license in the appropriate places. I think I've covered everything. This is going to be a mad commit ;)
#	User	Rev	Content
1	tdb	1.3	/*
2			* i-scream central monitoring system
3			* Copyright (C) 2000-2002 i-scream
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 (at your option) 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	pjm2	1.2	// pjm2@ukc.ac.uk
21			// class for laying out text in a terminal window. (in Java!)
22			// After hours of fiddling, anything is possible... ;-)
23
24			public class TerminalScreen {
25
26			private static final String ESCAPE_SEQUENCE = "[";
27
28			public static final int BOLD = 1;
29			public static final int BLACK_BG = 7;
30			public static final int BLUE = 34;
31			public static final int PINK = 35;
32			public static final int RED = 31;
33
34			// No-args constructor.
35			public TerminalScreen() {
36			// reserved.
37			}
38
39			// Set the cursor position.
40			public void gotoxy(int x, int y) {
41			System.out.print(ESCAPE_SEQUENCE+y+";"+x+"H");
42			}
43
44			// Print a string at the current position.
45			public void print(String s) {
46			System.out.print(s);
47			}
48
49			// Print a string at the current position with the
50			// specified colour.
51			public void print(String s, int colour) {
52			System.out.print(ESCAPE_SEQUENCE+colour+"m");
53			System.out.print(s);
54			System.out.print(ESCAPE_SEQUENCE+"0m");
55			}
56
57			// Print a string at the current position with a specified
58			// foreground and background colour.
59			public void print(String s, int colour, int other) {
60			System.out.print(ESCAPE_SEQUENCE+other+"m");
61			this.print(s, colour);
62			}
63
64			// Clears the terminal screen and then resets the cursor position.
65			public void clear() {
66			System.out.print(ESCAPE_SEQUENCE+"2J");
67			System.out.print(ESCAPE_SEQUENCE+"1;24r");
68			}
69
70			// Main method for testing!
71			public static void main(String[] args) throws InterruptedException {
72
73			TerminalScreen screen = new TerminalScreen();
74
75			screen.clear();
76
77			screen.gotoxy(34, 10);
78			screen.print(" i - s c r e a m ", TerminalScreen.BOLD, TerminalScreen.BLACK_BG);
79			screen.gotoxy(27, 12);
80			screen.print("Central Monitoring System Client", TerminalScreen.BLUE);
81			screen.gotoxy(32,13);
82			screen.print("Unix/Linux version 1.0");
83
84
85			screen.gotoxy(1,1);
86			screen.print("Top left");
87			screen.gotoxy(79,24);
88			screen.print("E");
89
90			screen.gotoxy(1,24);
91
92			Thread.sleep(3000);
93
94			screen.clear();
95
96
97
98			}
99
100			}