source: libcaca/trunk/cucul/box.c @ 536

Last change on this file since 536 was 536, checked in by Sam Hocevar, 14 years ago
  • Moved stuff around to differenciate between libcucul and libcaca.
  • Property svn:keywords set to Id
File size: 3.9 KB
Line 
1/*
2 *  libcucul      Unicode canvas library
3 *  Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org>
4 *                All Rights Reserved
5 *
6 *  This library is free software; you can redistribute it and/or
7 *  modify it under the terms of the Do What The Fuck You Want To
8 *  Public License, Version 2, as published by Sam Hocevar. See
9 *  http://sam.zoy.org/wtfpl/COPYING for more details.
10 */
11
12/** \file box.c
13 *  \version \$Id: box.c 536 2006-03-06 20:57:14Z sam $
14 *  \author Sam Hocevar <sam@zoy.org>
15 *  \brief Simple box drawing
16 *
17 *  This file contains box drawing functions, both filled and outline.
18 */
19
20#include "config.h"
21
22#if defined(HAVE_INTTYPES_H) || defined(_DOXYGEN_SKIP_ME)
23#   include <inttypes.h>
24#else
25typedef unsigned char uint8_t;
26#endif
27
28#include <stdlib.h>
29
30#include "cucul.h"
31#include "cucul_internals.h"
32
33/**
34 * \brief Draw a box on the screen using the given character.
35 *
36 * \param x1 X coordinate of the upper-left corner of the box.
37 * \param y1 Y coordinate of the upper-left corner of the box.
38 * \param x2 X coordinate of the lower-right corner of the box.
39 * \param y2 Y coordinate of the lower-right corner of the box.
40 * \param c Character to draw the box outline with.
41 * \return void
42 */
43void cucul_draw_box(cucul_t *qq, int x1, int y1, int x2, int y2, char c)
44{
45    cucul_draw_line(qq, x1, y1, x1, y2, c);
46    cucul_draw_line(qq, x1, y2, x2, y2, c);
47    cucul_draw_line(qq, x2, y2, x2, y1, c);
48    cucul_draw_line(qq, x2, y1, x1, y1, c);
49}
50
51/**
52 * \brief Draw a thin box on the screen.
53 *
54 * \param x1 X coordinate of the upper-left corner of the box.
55 * \param y1 Y coordinate of the upper-left corner of the box.
56 * \param x2 X coordinate of the lower-right corner of the box.
57 * \param y2 Y coordinate of the lower-right corner of the box.
58 * \return void
59 */
60void cucul_draw_thin_box(cucul_t *qq, int x1, int y1, int x2, int y2)
61{
62    int x, y, xmax, ymax;
63
64    if(x1 > x2)
65    {
66        int tmp = x1;
67        x1 = x2; x2 = tmp;
68    }
69
70    if(y1 > y2)
71    {
72        int tmp = y1;
73        y1 = y2; y2 = tmp;
74    }
75
76    xmax = qq->width - 1;
77    ymax = qq->height - 1;
78
79    if(x2 < 0 || y2 < 0 || x1 > xmax || y1 > ymax)
80        return;
81
82    /* Draw edges */
83    if(y1 >= 0)
84        for(x = x1 < 0 ? 1 : x1 + 1; x < x2 && x < xmax; x++)
85            cucul_putchar(qq, x, y1, '-');
86
87    if(y2 <= ymax)
88        for(x = x1 < 0 ? 1 : x1 + 1; x < x2 && x < xmax; x++)
89            cucul_putchar(qq, x, y2, '-');
90
91    if(x1 >= 0)
92        for(y = y1 < 0 ? 1 : y1 + 1; y < y2 && y < ymax; y++)
93            cucul_putchar(qq, x1, y, '|');
94
95    if(x2 <= xmax)
96        for(y = y1 < 0 ? 1 : y1 + 1; y < y2 && y < ymax; y++)
97            cucul_putchar(qq, x2, y, '|');
98
99    /* Draw corners */
100    if(x1 >= 0 && y1 >= 0)
101        cucul_putchar(qq, x1, y1, ',');
102
103    if(x1 >= 0 && y2 <= ymax)
104        cucul_putchar(qq, x1, y2, '`');
105
106    if(x2 <= xmax && y1 >= 0)
107        cucul_putchar(qq, x2, y1, '.');
108
109    if(x2 <= xmax && y2 <= ymax)
110        cucul_putchar(qq, x2, y2, '\'');
111}
112
113/**
114 * \brief Fill a box on the screen using the given character.
115 *
116 * \param x1 X coordinate of the upper-left corner of the box.
117 * \param y1 Y coordinate of the upper-left corner of the box.
118 * \param x2 X coordinate of the lower-right corner of the box.
119 * \param y2 Y coordinate of the lower-right corner of the box.
120 * \param c Character to fill the box with.
121 * \return void
122 */
123void cucul_fill_box(cucul_t *qq, int x1, int y1, int x2, int y2, char c)
124{
125    int x, y, xmax, ymax;
126
127    if(x1 > x2)
128    {
129        int tmp = x1;
130        x1 = x2; x2 = tmp;
131    }
132
133    if(y1 > y2)
134    {
135        int tmp = y1;
136        y1 = y2; y2 = tmp;
137    }
138
139    xmax = qq->width - 1;
140    ymax = qq->height - 1;
141
142    if(x2 < 0 || y2 < 0 || x1 > xmax || y1 > ymax)
143        return;
144
145    if(x1 < 0) x1 = 0;
146    if(y1 < 0) y1 = 0;
147    if(x2 > xmax) x2 = xmax;
148    if(y2 > ymax) y2 = ymax;
149
150    for(y = y1; y <= y2; y++)
151        for(x = x1; x <= x2; x++)
152            cucul_putchar(qq, x, y, c);
153}
154
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