source: ttyvaders/trunk/libee/box.c @ 160

Last change on this file since 160 was 160, checked in by Sam Hocevar, 16 years ago
  • libee/ee.h: + Added ee_color_names[] containing our 16 color names.
  • libee/ee.c: + Extended our color set to the full 16 instead of 10. + Precalculate ncurses attributes.
  • libee/graphics.c: + Clip color value in ee_set_color(). + Clip characters in ee_putchar(). + Partially clip characters in ee_putstr(), overflows aren't checked yet.
  • libee/ee_internals.h: + New file to share extern variables within libee.
  • test/demo.c: + Added a simple demo_color() to output all colors. + Replaced four ee_draw_line() with ee_draw_thin_box(). + Replaced x1, y1, x2 etc. with xa, ya, xb etc. because <math.h> already

defines y1.

+ Randomized colours from 0 to 15 instead of 1 to 10.

  • src/Makefiles.am: + Added -lm to the ttyvaders linking flags because of the intro.
  • README BUGS TODO: + Updated.
  • Property svn:keywords set to Id
File size: 2.8 KB
Line 
1/*
2 *   libee         ASCII-Art library
3 *   Copyright (c) 2002, 2003 Sam Hocevar <sam@zoy.org>
4 *                 All Rights Reserved
5 *
6 *   $Id: box.c 160 2003-11-12 21:18:50Z sam $
7 *
8 *   This program is free software; you can redistribute it and/or modify
9 *   it under the terms of the GNU General Public License as published by
10 *   the Free Software Foundation; either version 2 of the License, or
11 *   (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22
23#include "config.h"
24
25#include <stdlib.h>
26
27#include "ee.h"
28#include "ee_internals.h"
29
30void ee_draw_box(int x1, int y1, int x2, int y2, char c)
31{
32    ee_draw_line(x1, y1, x1, y2, c);
33    ee_draw_line(x1, y2, x2, y2, c);
34    ee_draw_line(x2, y2, x2, y1, c);
35    ee_draw_line(x2, y1, x1, y1, c);
36}
37
38void ee_draw_thin_box(int x1, int y1, int x2, int y2)
39{
40    int x, y, xmax, ymax;
41
42    if(x1 > x2)
43    {
44        int tmp = x1;
45        x1 = x2; x2 = tmp;
46    }
47
48    if(y1 > y2)
49    {
50        int tmp = y1;
51        y1 = y2; y2 = tmp;
52    }
53
54    xmax = ee_get_width() - 1;
55    ymax = ee_get_height() - 1;
56
57    if(x2 < 0 || y2 < 0 || x1 > xmax || y1 > ymax)
58        return;
59
60    /* Draw edges */
61    if(y1 >= 0)
62        for(x = x1 < 0 ? 1 : x1 + 1; x < x2 && x < xmax; x++)
63            ee_putchar(x, y1, '-');
64
65    if(y2 <= ymax)
66        for(x = x1 < 0 ? 1 : x1 + 1; x < x2 && x < xmax; x++)
67            ee_putchar(x, y2, '-');
68
69    if(x1 >= 0)
70        for(y = y1 < 0 ? 1 : y1 + 1; y < y2 && y < ymax; y++)
71            ee_putchar(x1, y, '|');
72
73    if(x2 <= xmax)
74        for(y = y1 < 0 ? 1 : y1 + 1; y < y2 && y < ymax; y++)
75            ee_putchar(x2, y, '|');
76
77    /* Draw corners */
78    if(x1 >= 0 && y1 >= 0)
79        ee_putchar(x1, y1, ',');
80
81    if(x1 >= 0 && y2 <= ymax)
82        ee_putchar(x1, y2, '`');
83
84    if(x2 <= xmax && y1 >= 0)
85        ee_putchar(x2, y1, '.');
86
87    if(x2 <= xmax && y2 <= ymax)
88        ee_putchar(x2, y2, '\'');
89}
90
91void ee_fill_box(int x1, int y1, int x2, int y2, char c)
92{
93    int x, y, xmax, ymax;
94
95    if(x1 > x2)
96    {
97        int tmp = x1;
98        x1 = x2; x2 = tmp;
99    }
100
101    if(y1 > y2)
102    {
103        int tmp = y1;
104        y1 = y2; y2 = tmp;
105    }
106
107    xmax = ee_get_width() - 1;
108    ymax = ee_get_height() - 1;
109
110    if(x2 < 0 || y2 < 0 || x1 > xmax || y1 > ymax)
111        return;
112
113    if(x1 < 0) x1 = 0;
114    if(y1 < 0) y1 = 0;
115    if(x2 > xmax) x2 = xmax;
116    if(y2 > ymax) y2 = ymax;
117
118    for(y = y1; y <= y2; y++)
119        for(x = x1; x <= x2; x++)
120            ee_putchar(x, y, c);
121}
122
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