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root/i-scream/projects/cms/source/client/javacli/TerminalScreen.java
Revision: 1.2
Committed: Sun Jan 14 21:58:11 2001 UTC (23 years, 10 months ago) by pjm2
Branch: MAIN
CVS Tags: PROJECT_COMPLETION
Changes since 1.1: +81 -81 lines
Log Message:
Basic command line client to the server's clientinterface.
Currently displays machine name, ip and load values.

File Contents

# Content
1 // pjm2@ukc.ac.uk
2 // class for laying out text in a terminal window. (in Java!)
3 // After hours of fiddling, anything is possible... ;-)
4
5 public class TerminalScreen {
6
7 private static final String ESCAPE_SEQUENCE = "[";
8
9 public static final int BOLD = 1;
10 public static final int BLACK_BG = 7;
11 public static final int BLUE = 34;
12 public static final int PINK = 35;
13 public static final int RED = 31;
14
15 // No-args constructor.
16 public TerminalScreen() {
17 // reserved.
18 }
19
20 // Set the cursor position.
21 public void gotoxy(int x, int y) {
22 System.out.print(ESCAPE_SEQUENCE+y+";"+x+"H");
23 }
24
25 // Print a string at the current position.
26 public void print(String s) {
27 System.out.print(s);
28 }
29
30 // Print a string at the current position with the
31 // specified colour.
32 public void print(String s, int colour) {
33 System.out.print(ESCAPE_SEQUENCE+colour+"m");
34 System.out.print(s);
35 System.out.print(ESCAPE_SEQUENCE+"0m");
36 }
37
38 // Print a string at the current position with a specified
39 // foreground and background colour.
40 public void print(String s, int colour, int other) {
41 System.out.print(ESCAPE_SEQUENCE+other+"m");
42 this.print(s, colour);
43 }
44
45 // Clears the terminal screen and then resets the cursor position.
46 public void clear() {
47 System.out.print(ESCAPE_SEQUENCE+"2J");
48 System.out.print(ESCAPE_SEQUENCE+"1;24r");
49 }
50
51 // Main method for testing!
52 public static void main(String[] args) throws InterruptedException {
53
54 TerminalScreen screen = new TerminalScreen();
55
56 screen.clear();
57
58 screen.gotoxy(34, 10);
59 screen.print(" i - s c r e a m ", TerminalScreen.BOLD, TerminalScreen.BLACK_BG);
60 screen.gotoxy(27, 12);
61 screen.print("Central Monitoring System Client", TerminalScreen.BLUE);
62 screen.gotoxy(32,13);
63 screen.print("Unix/Linux version 1.0");
64
65
66 screen.gotoxy(1,1);
67 screen.print("Top left");
68 screen.gotoxy(79,24);
69 screen.print("E");
70
71 screen.gotoxy(1,24);
72
73 Thread.sleep(3000);
74
75 screen.clear();
76
77
78
79 }
80
81 }