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#define _XOPEN_SOURCE /* glibc2 needs this */
#include <time.h>
#include <sys/time.h>
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <glib/gprintf.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include <cairo.h>
#define SECOND_INTERVAL 1000
#define DEFAULT_WIDTH 200
#define DEFAULT_HEIGHT 15
struct private {
time_t time;
time_t von_arrives;
struct timeval tv_now;
gchar *ts;
gchar *msg;
};
static gboolean time_handler (GtkWidget* w)
{
gtk_widget_queue_draw (w);
return TRUE;
}
gboolean on_key_press (GtkWidget *widget, GdkEventKey *key, gpointer p) {
if (key->type == GDK_KEY_PRESS)
{
switch (key->keyval)
{
case GDK_Escape :
gtk_main_quit ();
break;
}
}
return FALSE;
}
static void paint (GtkWidget *widget, GdkEventExpose *eev, struct private *p) {
gint width, height;
cairo_t *cr;
gint sec, min, hour, day;
p->time = p->von_arrives - time(NULL);
gettimeofday(&p->tv_now, NULL);
localtime (&p->tv_now.tv_sec);
day = p->time / (3600*24);
p->time -= day*(3600*24);
hour = p->time / 3600;
p->time -= hour*3600;
min = p->time/60;
p->time -= min*60;
sec = p->time;
g_sprintf(p->ts,
"Von arrives in %02dd %02d:%02d:%02d:%02d",
day, hour, min, sec,
(int) (99 - ((p->tv_now.tv_usec)/10e3)));
width = widget->allocation.width;
height = widget->allocation.height;
cr = gdk_cairo_create (widget->window);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba (cr, 1.0f, 1.0f, 1.0f, 0.4f);
cairo_paint (cr);
cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_BOLD);
cairo_save (cr);
cairo_set_font_size (cr, 10);
cairo_move_to (cr, 10, 10);
cairo_set_source_rgba (cr, 0.0f, 0.0f, 0.0f, 1.0f);
cairo_show_text (cr, p->ts);
cairo_restore (cr);
cairo_destroy (cr);
}
static void install_colormap (GtkWidget *w) {
GdkScreen* screen = gtk_widget_get_screen (w);
GdkColormap* colormap = gdk_screen_get_rgba_colormap (screen);
if (!colormap)
colormap = gdk_screen_get_rgb_colormap (screen);
gtk_widget_set_colormap (w, colormap);
}
gint usage (char *name) {
return printf ("usage: %s [TIME[+FMT]].\n", name);
}
gint main (gint argc, gchar **argv) {
int c;
char *s_time = NULL;
char *s_res = NULL;
char *fmt = "%Y-%m-%d";
GtkWidget *window;
struct private *p = malloc(sizeof(struct private));
struct tm von_time = {
.tm_min = 40,
.tm_hour = 9,
.tm_mday = 14,
.tm_mon = 1,
.tm_year = 107,
};
for (c = 1; c < argc; c++) {
switch (*argv[c]) {
case '+':
fmt = argv[c] + 1;
break;
case '-':
switch (*(argv[c] + 1)) {
case 'h':
return usage(argv[0]);
case '-':
break;
}
break;
default:
if (s_time != NULL)
printf ("WARNING: overriding previously given time \n"
"'%s'\n"
"with '%s'.\n", s_time, argv[c]);
s_time = argv[c];
}
}
if (s_time) {
s_res = strptime(s_time, fmt, &von_time);
if (*s_res != '\0')
printf("WARNING: processing stoped at '%s'\n", s_res);
}
if (time(NULL) > mktime(&von_time))
printf("WARNING: given a date in the past !\n");
p->ts = g_strdup_printf("Von arrives in 00d 00:00:00:00");
p->von_arrives = mktime(&von_time);
gtk_init(&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_stick (GTK_WINDOW (window));
gtk_window_set_keep_below (GTK_WINDOW (window), TRUE);
gtk_window_set_skip_taskbar_hint (GTK_WINDOW (window), TRUE);
gtk_window_set_skip_pager_hint (GTK_WINDOW (window), TRUE);
gtk_window_set_accept_focus (GTK_WINDOW (window), FALSE);
gtk_window_set_decorated (GTK_WINDOW (window), FALSE);
gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
gtk_widget_set_app_paintable (window, TRUE);
gtk_window_set_default_size (GTK_WINDOW (window),
DEFAULT_WIDTH,
DEFAULT_HEIGHT);
install_colormap(window);
gtk_widget_add_events (window, GDK_BUTTON_PRESS_MASK);
g_signal_connect (G_OBJECT (window), "expose-event",
G_CALLBACK (paint),
p);
g_signal_connect (G_OBJECT (window),
"key-press-event",
G_CALLBACK (on_key_press),
NULL);
gtk_widget_show_all (window);
gtk_timeout_add (SECOND_INTERVAL/9, (GtkFunction) time_handler, window);
gtk_main ();
g_free(p->ts);
free(p);
return 0;
}
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