source: libcaca/trunk/examples/event.c @ 4333

Last change on this file since 4333 was 4333, checked in by Sam Hocevar, 10 years ago

Large source code cleanup, getting rid of spaces, tabs, and svn keywords.

  • Property svn:keywords set to Id
File size: 4.7 KB
Line 
1/*
2 *  event         event lister for libcaca
3 *  Copyright (c) 2004 Sam Hocevar <sam@hocevar.net>
4 *                All Rights Reserved
5 *
6 *  This program is free software. It comes without any warranty, to
7 *  the extent permitted by applicable law. You can redistribute it
8 *  and/or modify it under the terms of the Do What The Fuck You Want
9 *  To Public License, Version 2, as published by Sam Hocevar. See
10 *  http://sam.zoy.org/wtfpl/COPYING for more details.
11 */
12
13#include "config.h"
14
15#if !defined(__KERNEL__)
16#   include <stdio.h>
17#   include <string.h>
18#   include <stdlib.h>
19#endif
20
21#include "caca.h"
22
23static caca_canvas_t *cv;
24static caca_display_t *dp;
25
26static void print_event(int, int, caca_event_t *);
27
28int main(int argc, char **argv)
29{
30    caca_event_t *events;
31    int i, h, quit;
32
33    cv = caca_create_canvas(80, 24);
34    if(cv == NULL)
35    {
36        printf("Failed to create canvas\n");
37        return 1;
38    }
39
40    dp = caca_create_display(cv);
41    if(dp == NULL)
42    {
43        printf("Failed to create display\n");
44        return 1;
45    }
46
47    h = caca_get_canvas_height(cv) - 1;
48
49    caca_set_color_ansi(cv, CACA_WHITE, CACA_BLUE);
50    caca_draw_line(cv, 0, 0, caca_get_canvas_width(cv) - 1, 0, ' ');
51
52    caca_draw_line(cv, 0, h, caca_get_canvas_width(cv) - 1, h, ' ');
53    caca_put_str(cv, 0, h, "type \"quit\" to exit");
54
55    caca_refresh_display(dp);
56
57    events = malloc(h * sizeof(caca_event_t));
58    memset(events, 0, h * sizeof(caca_event_t));
59
60    for(quit = 0; quit < 4; )
61    {
62        caca_event_t ev;
63        static char const * quit_string[] = { "", "q", "qu", "qui", "quit" };
64        int ret = caca_get_event(dp, CACA_EVENT_ANY, &ev, -1);
65
66        if(!ret)
67            continue;
68
69        do
70        {
71            /* "quit" quits */
72            if(caca_get_event_type(&ev) & CACA_EVENT_KEY_PRESS)
73            {
74                int key = caca_get_event_key_ch(&ev);
75                if((key == 'q' && quit == 0) || (key == 'u' && quit == 1)
76                    || (key == 'i' && quit == 2) || (key == 't' && quit == 3))
77                    quit++;
78                else if(key == 'q')
79                    quit = 1;
80                else
81                    quit = 0;
82            }
83
84            memmove(events + 1, events, (h - 1) * sizeof(caca_event_t));
85            events[0] = ev;
86
87            ret = caca_get_event(dp, CACA_EVENT_ANY, &ev, 0);
88        }
89        while(ret);
90
91        caca_set_color_ansi(cv, CACA_LIGHTGRAY, CACA_BLACK);
92        caca_clear_canvas(cv);
93
94        /* Print current event */
95        caca_set_color_ansi(cv, CACA_WHITE, CACA_BLUE);
96        caca_draw_line(cv, 0, 0, caca_get_canvas_width(cv) - 1, 0, ' ');
97        print_event(0, 0, events);
98
99        caca_draw_line(cv, 0, h, caca_get_canvas_width(cv) - 1, h, ' ');
100        caca_printf(cv, 0, h, "type \"quit\" to exit: %s", quit_string[quit]);
101
102        /* Print previous events */
103        caca_set_color_ansi(cv, CACA_WHITE, CACA_BLACK);
104        for(i = 1; i < h && caca_get_event_type(&events[i]); i++)
105            print_event(0, i, events + i);
106
107        caca_refresh_display(dp);
108    }
109
110    /* Clean up */
111    free(events);
112    caca_free_display(dp);
113    caca_free_canvas(cv);
114
115    return 0;
116}
117
118static void print_event(int x, int y, caca_event_t *ev)
119{
120    int character;
121
122    switch(caca_get_event_type(ev))
123    {
124    case CACA_EVENT_NONE:
125        caca_printf(cv, x, y, "CACA_EVENT_NONE");
126        break;
127    case CACA_EVENT_KEY_PRESS:
128        character = caca_get_event_key_ch(ev);
129        caca_printf(cv, x, y, "CACA_EVENT_KEY_PRESS 0x%02x (%c)", character,
130                     (character > 0x1f && character < 0x80) ? character : '?');
131        break;
132    case CACA_EVENT_KEY_RELEASE:
133        character = caca_get_event_key_ch(ev);
134        caca_printf(cv, x, y, "CACA_EVENT_KEY_RELEASE 0x%02x (%c)", character,
135                     (character > 0x1f && character < 0x80) ? character : '?');
136        break;
137    case CACA_EVENT_MOUSE_MOTION:
138        caca_printf(cv, x, y, "CACA_EVENT_MOUSE_MOTION %u %u",
139                     caca_get_event_mouse_x(ev), caca_get_event_mouse_y(ev));
140        break;
141    case CACA_EVENT_MOUSE_PRESS:
142        caca_printf(cv, x, y, "CACA_EVENT_MOUSE_PRESS %u",
143                     caca_get_event_mouse_button(ev));
144        break;
145    case CACA_EVENT_MOUSE_RELEASE:
146        caca_printf(cv, x, y, "CACA_EVENT_MOUSE_RELEASE %u",
147                     caca_get_event_mouse_button(ev));
148        break;
149    case CACA_EVENT_RESIZE:
150        caca_printf(cv, x, y, "CACA_EVENT_RESIZE %u %u",
151                     caca_get_event_resize_width(ev),
152                     caca_get_event_resize_height(ev));
153        break;
154    case CACA_EVENT_QUIT:
155        caca_printf(cv, x, y, "CACA_EVENT_QUIT");
156        break;
157    default:
158        caca_printf(cv, x, y, "CACA_EVENT_UNKNOWN");
159    }
160}
161
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