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e16-epplets/epplets/E-Magic.c

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/*
* Copyright (C) 1999-2000, Michael Jennings
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies of the Software, its documentation and marketing & publicity
* materials, and acknowledgment shall be given in the documentation, materials
* and software packages that this Software was used.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include "epplet.h"
#if 0
#define D(x) do {printf("%10s | %7d: [debug] ", __FILE__, __LINE__); printf x; fflush(stdout);} while (0)
#else
#define D(x) ((void) 0)
#endif
#define BEGMATCH(a, b) (!strncasecmp((a), (b), (sizeof(b) - 1)))
#define NONULL(x) ((x) ? (x) : (""))
static Epplet_gadget close_button, cfg_button, picture, label;
static Epplet_gadget cfg_tb_image, cfg_tb_delay, cfg_tb_ans_file;
static unsigned long idx = 0, cnt = 0;
static double delay = 2.0;
static const char *image = NULL, *ans_file;
static char **answers = NULL;
static Window config_win = None;
static unsigned char focus = 0;
static unsigned long parse_answers(const char *path);
static void
button_show_cb(void *data __UNUSED__)
{
Epplet_gadget_hide(label);
Epplet_gadget_show(picture);
if (focus)
{
Epplet_gadget_show(close_button);
Epplet_gadget_show(cfg_button);
}
}
static void
button_click_cb(void *data __UNUSED__)
{
unsigned long last_idx = idx;
do
{
idx = (unsigned long)(cnt * ((float)rand()) / (RAND_MAX + 1.0));
if (idx >= cnt)
{
/********** FIXME ***********/
fprintf(stderr, "Eek!\n");
fflush(stderr);
idx = last_idx;
}
}
while (idx == last_idx);
Epplet_gadget_hide(picture);
Epplet_gadget_hide(close_button);
Epplet_gadget_hide(cfg_button);
Epplet_change_label(label, answers[idx]);
Epplet_gadget_show(label);
Epplet_timer(button_show_cb, NULL, delay, "SHOW_BUTTON");
}
static void
close_cb(void *data __UNUSED__)
{
Epplet_unremember();
Esync();
exit(0);
}
static void
in_cb(void *data __UNUSED__, Window w)
{
if (w == Epplet_get_main_window())
{
Epplet_gadget_show(close_button);
Epplet_gadget_show(cfg_button);
}
focus = 1;
}
static void
out_cb(void *data __UNUSED__, Window w)
{
if (w == Epplet_get_main_window())
{
Epplet_gadget_hide(close_button);
Epplet_gadget_hide(cfg_button);
}
focus = 0;
}
static int
delete_cb(void *data __UNUSED__, Window win __UNUSED__)
{
config_win = None;
return 1;
}
static void
apply_config(void)
{
const char *s;
s = Epplet_textbox_contents(cfg_tb_image);
if (*s && strcmp(s, image))
{
Epplet_modify_config("image", s);
image = Epplet_query_config("image");
Epplet_change_button_image(picture, image);
}
s = Epplet_textbox_contents(cfg_tb_ans_file);
if (*s && strcmp(s, ans_file) && parse_answers(s))
{
Epplet_modify_config("answers", s);
ans_file = Epplet_query_config("answers");
}
s = Epplet_textbox_contents(cfg_tb_delay);
if (*s)
{
delay = atof(s);
if (delay)
{
Epplet_modify_config("delay", s);
}
else
{
delay = 2.0;
}
}
}
static void
ok_cb(void *data __UNUSED__)
{
apply_config();
Epplet_save_config();
Epplet_window_destroy(config_win);
config_win = None;
}
static void
apply_cb(void *data __UNUSED__)
{
apply_config();
}
static void
cancel_cb(void *data __UNUSED__)
{
Epplet_window_destroy(config_win);
config_win = None;
}
static void
config_cb(void *data __UNUSED__)
{
char buff[128];
if (config_win)
return;
config_win =
Epplet_create_window_config(300, 160, "E-Magic Configuration", ok_cb,
NULL, apply_cb, NULL, cancel_cb, NULL);
Epplet_gadget_show(Epplet_create_label(4, 4, "Path to Image:", 2));
Epplet_gadget_show(cfg_tb_image =
Epplet_create_textbox(NULL, image, 4, 18, 292, 20, 2,
NULL, NULL));
Epplet_gadget_show(Epplet_create_label(4, 50, "Path to Answers File:", 2));
Epplet_gadget_show(cfg_tb_ans_file =
Epplet_create_textbox(NULL, ans_file, 4, 64, 292, 20, 2,
NULL, NULL));
sprintf(buff, "%3.2f", delay);
Epplet_gadget_show(Epplet_create_label
(4, 96, "Show answer for how many seconds?", 2));
Epplet_gadget_show(cfg_tb_delay =
Epplet_create_textbox(NULL, buff, 4, 110, 192, 20, 2,
NULL, NULL));
Epplet_window_show(config_win);
Epplet_window_pop_context();
}
/* chomp() removes leading and trailing whitespace/quotes from a string */
static char *
chomp(char *s)
{
register char *front, *back;
for (front = s; *front && isspace(*front); front++);
for (back = s + strlen(s) - 1; *back && isspace(*back) && back > front;
back--);
*(++back) = 0;
if (front != s)
{
memmove(s, front, back - front + 1);
}
return (s);
}
static unsigned long
parse_answers(const char *path)
{
char buff[1024];
FILE *fp;
unsigned char done = 0;
unsigned long len;
fp = fopen(path, "r");
if (!fp)
{
return 0;
}
for (; !done; idx++)
{
for (; !(done = !(fgets(buff, sizeof(buff), fp)));)
{
/* First, skip any leading lines of whitespace. */
chomp(buff);
if (*buff)
{
break;
}
}
if (done)
{
break;
}
if (cnt)
{
answers = (char **)realloc(answers, sizeof(char *) * (++cnt));
}
else
{
cnt = 1;
answers = (char **)malloc(sizeof(char *));
}
len = strlen(buff) + 1;
answers[idx] = (char *)malloc(len);
strcpy(answers[idx], buff);
for (; !(done = !(fgets(buff, sizeof(buff), fp)));)
{
/* Now, add all lines up to the next all-whitespace line. */
chomp(buff);
if (!(*buff))
{
break;
}
len += strlen(buff) + 1;
answers[idx] = (char *)realloc(answers[idx], len);
strcat(answers[idx], "\n");
strcat(answers[idx], buff);
}
}
fclose(fp);
return (cnt);
}
static void
parse_config(void)
{
const char *s;
char ss[1024];
image = Epplet_query_config_def("image", "8ball.png");
Esnprintf(ss, sizeof(ss), "%s/answers.txt", Epplet_data_dir());
ans_file = Epplet_query_config_def("answers", ss);
if (!parse_answers(ans_file) && !parse_answers(ans_file = ss))
{
/* Couldn't find the answers. Exit. */
Epplet_dialog_ok("E-Magic: Missing/invalid answers file \"%s\"",
ans_file);
Esync();
exit(-1);
}
s = Epplet_query_config("delay");
if (s)
delay = atof(s);
else
Epplet_add_config("delay", "2.0");
}
int
main(int argc, char **argv)
{
int w = 6, h = 3;
srand(getpid() ^ time(NULL));
atexit(Epplet_cleanup);
Epplet_Init("E-Magic", "0.1", "Enlightenment Magic Eight Ball Epplet", w, h,
argc, argv, 0);
Epplet_load_config();
parse_config();
label = Epplet_create_label(6, 6, "", 2);
Epplet_gadget_show(picture =
Epplet_create_image_button(image, 3, 3, ((w * 16) - 6),
((h * 16) - 6),
button_click_cb, NULL));
close_button = Epplet_create_std_button("CLOSE", 3, 3, close_cb, NULL);
cfg_button =
Epplet_create_std_button("CONFIGURE", ((w * 16) - 15), 3, config_cb,
NULL);
Epplet_register_focus_in_handler(in_cb, NULL);
Epplet_register_focus_out_handler(out_cb, NULL);
Epplet_register_delete_event_handler(delete_cb, NULL);
Epplet_show();
Epplet_Loop();
return 0;
}
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