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Import AnaGram (near-)release tree into Mercurial.
author David A. Holland
date Sat, 22 Dec 2007 17:52:45 -0500
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-1:000000000000 0:13d2b8934445
1 /*****
2
3 AnaGram Programming Examples
4
5 A Dos Script Language
6 Screen Control Class Definitions
7
8 Copyright 1993 Parsifal Software. All Rights Reserved.
9
10 This software is provided 'as-is', without any express or implied
11 warranty. In no event will the authors be held liable for any damages
12 arising from the use of this software.
13
14 Permission is granted to anyone to use this software for any purpose,
15 including commercial applications, and to alter it and redistribute it
16 freely, subject to the following restrictions:
17
18 1. The origin of this software must not be misrepresented; you must not
19 claim that you wrote the original software. If you use this software
20 in a product, an acknowledgment in the product documentation would be
21 appreciated but is not required.
22 2. Altered source versions must be plainly marked as such, and must not be
23 misrepresented as being the original software.
24 3. This notice may not be removed or altered from any source distribution.
25
26 *****/
27
28 #ifndef SCREEN_H
29 #define SCREEN_H
30
31 #include "pair.h"
32
33 #define COLOR(fg,bg) (((bg & 0xf) << 4) | (fg & 0xf))
34
35 #ifdef __386__
36 #define INT int386
37 #define COLOR_ADAPTER_ADDRESS 0XB8000
38 #else
39 #define INT int86
40 #define COLOR_ADAPTER_ADDRESS 0XB8000000
41 #endif
42
43
44 // char_cell class
45
46 class char_cell {
47 public:
48 unsigned char data, color;
49 char_cell() {data = color = 0;}
50 char_cell(int d, int c) {
51 data = (unsigned char) d, color = (unsigned char) c;
52 }
53 char_cell(int d, int fg, int bg) {
54 data = (unsigned char) d, color = (unsigned char) COLOR(fg,bg);
55 }
56 char_cell &operator = (int d) {
57 data = (unsigned char) d;
58 return *this;
59 }
60 };
61
62
63 // Protect Display
64
65 class protect_display {
66 char_cell *p;
67 unsigned n;
68 pair<int> cursor_position;
69 public:
70 protect_display();
71 ~protect_display();
72 };
73
74
75 // Screen Rectangle class
76
77 class screen_rect{
78 public:
79 pair <int> pos, size; // position and size of screen_rect
80 pair <int> jm; // justification mode
81
82 // No constructors or destructors defined
83
84 // Build a screen rectangle at absolute coordinates
85 friend screen_rect at(int, int, int);
86
87 // Build a screen rectangle at relative coordinates
88 screen_rect at(int,int,int = 0);
89
90 // Build a single line rectange at absolute coordinates
91 friend screen_rect line(int, int, int, int = 0);
92
93 // Build a single line rectangle at relative coordinates
94 screen_rect line(int,int,int,int = 0) const;
95
96 // Read the contents of a screen rectangle
97 friend char_cell *contents(const screen_rect &);
98
99 // Set the contents of a screen rectangle
100 screen_rect &operator << (const char_cell *);
101
102 // Build a sub-rectangle of given width, depth
103 screen_rect rect(int w, int d, int jm = 11);
104
105 // Draw a box around a screen rectangle
106 friend screen_rect box(screen_rect);
107
108 // Display data in rectangle
109 screen_rect &operator << (const char_cell &p);
110 screen_rect &operator << (const int);
111 screen_rect &operator << (const char *s);
112
113 // Tint a rectangle
114 screen_rect &tint(int color);
115 screen_rect &tint(int fg, int bg);
116
117 // Set cursor relative to rectangle
118 screen_rect &set_cursor(const int = 0, const int = 0);
119 };
120
121 screen_rect at(int, int, int = 0);
122
123 #endif