I’ve been educating myself about GTK+ programming lately. So I wrote this semi-short GTK app to countdown the time to New Years Day to learn more about GTK+, Cairo drawing, and Pango font library.
#include <gtk/gtk.h>
#include <time.h>
#include <glib/gprintf.h>
static char *
nye_countdown_str()
{
struct tm nyd = {0}; /* inits struct members to 0 */
nyd.tm_year = 2025 - 1900;
nyd.tm_mday = 1;
time_t nyd_time = mktime(&nyd);
time_t diff = difftime(nyd_time, time(NULL));
GString *buff = g_string_new("");
if ((int)(diff / 86400))
g_string_append_printf(buff, " %d %s\n", (int)(diff / 86400), "days");
if ((int)((diff % 86400) / 3600))
g_string_append_printf(buff, "%d %s\n", (int)(diff % 86400) / 3600, "hours");
if ((int)(diff % 3600) / 60)
g_string_append_printf(buff, "%d %s\n", (int)(diff % 3600) / 60, "minutes");
if ((int)(diff % 60))
g_string_append_printf(buff, "%d %s\n", (int)(diff % 60), "seconds");
return buff->str;
}
static void
draw_countdown(GtkDrawingArea *area, cairo_t *cr, int width, int height, gpointer user_data)
{
// make the ball drop one pixel every second through the top of minute
time_t now = time(NULL);
struct tm *currentTime = localtime(&now);
cairo_set_source_rgba(cr, 0, 0, 0, 0.8);
cairo_paint(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_rectangle(cr, width / 2 - 20, (width - 500) / 2 + 20, 40, height);
cairo_fill(cr);
float colorShift = currentTime->tm_sec / 60 + 0.5;
if (colorShift > 1)
colorShift = 0.85;
cairo_set_source_rgb(cr, 1, 1, colorShift);
cairo_arc(cr, width / 2, 80 + currentTime->tm_sec, 200 / 2, 0,
2 * 3.14159);
cairo_fill(cr);
cairo_set_source_rgb(cr, 1, 1, 1);
PangoLayout *pangLayout;
PangoFontDescription *pangDesc;
pangLayout = pango_cairo_create_layout(cr);
pango_layout_set_text(pangLayout, nye_countdown_str(), -1);
pangDesc = pango_font_description_from_string("American Typewriter 40");
pango_layout_set_font_description(pangLayout, pangDesc);
pango_font_description_free(pangDesc);
pango_layout_set_alignment(pangLayout, PANGO_ALIGN_CENTER);
PangoRectangle pLExtents = {0};
pango_layout_get_extents(pangLayout, NULL, &pLExtents);
pango_extents_to_pixels(NULL, &pLExtents);
cairo_move_to(cr, (width / 2) - (pLExtents.width / 2), 300);
pango_cairo_update_layout(cr, pangLayout);
pango_cairo_show_layout(cr, pangLayout);
pangLayout = pango_cairo_create_layout(cr);
pango_layout_set_text(pangLayout, "2025", -1);
pangDesc = pango_font_description_from_string("American Typewriter Bold 50");
pango_layout_set_font_description(pangLayout, pangDesc);
pango_font_description_free(pangDesc);
pango_layout_set_alignment(pangLayout, PANGO_ALIGN_CENTER);
pango_layout_get_extents(pangLayout, NULL, &pLExtents);
pango_extents_to_pixels(NULL, &pLExtents);
cairo_move_to(cr, 0, 120);
cairo_rotate(cr, -45 * (M_PI / 180));
pango_cairo_update_layout(cr, pangLayout);
pango_cairo_show_layout(cr, pangLayout);
}
static gboolean
time_handler(GtkWidget *widget)
{
gtk_widget_queue_draw(widget);
return TRUE;
}
static void
app_activate(GApplication *app, gpointer user_data)
{
GtkWidget *win, *countdown, *box, *creator_labl;
int curWindowHeight;
win = gtk_application_window_new(GTK_APPLICATION(app));
gtk_window_set_title(GTK_WINDOW(win), "Countdown to 2025");
gtk_window_set_default_size(GTK_WINDOW(win), 600, 600);
box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 5);
gtk_window_set_child(GTK_WINDOW(win), box);
countdown = gtk_drawing_area_new();
gtk_drawing_area_set_draw_func(GTK_DRAWING_AREA(countdown), draw_countdown, NULL, NULL);
gtk_window_get_default_size(GTK_WINDOW(win), NULL, &curWindowHeight);
gtk_drawing_area_set_content_height(GTK_DRAWING_AREA(countdown), hgcurWindowHeight);
gtk_box_append(GTK_BOX(box), countdown);
creator_labl = gtk_label_new("Created by Andy Arthur, December 29, 2024");
gtk_box_append(GTK_BOX(box), creator_labl);
g_timeout_add(1000, (GSourceFunc)time_handler, (gpointer)countdown);
gtk_window_present(GTK_WINDOW(win));
}
static void
app_open(GApplication *app, GFile **files, gint n_files, gchar *hint, gpointer user_data)
{
app_activate(app, user_data);
}
int main(int argc, char **argv)
{
GtkApplication *app;
int stat;
app = gtk_application_new("org.andyarthur.nye", G_APPLICATION_HANDLES_OPEN);
g_signal_connect(app, "activate", G_CALLBACK(app_activate), NULL);
g_signal_connect(app, "open", G_CALLBACK(app_open), NULL);
stat = g_application_run(G_APPLICATION(app), argc, argv);
g_object_unref(app);
return stat;
}
Heck, for most people these days they don’t recommend anything beyond staying home, resting up and not returning to work until 24 hours after the last of the symptoms.
though I have moments of up and down. My energy levels are at 50-80% what they were pre-COVID and I still have a bit of a sore throat. My nose is still congested, don’t have as much dizziness and my hearing is coming back. 
But I also feel so euphoric at times, after being so sick. Sleeping basically for 36 hours straight from Christmas Eve until essentially that Friday after Christmas, 
bar maybe glancing at my phone and running downstairs to grab an orange 
— the only thing I could eat as I was puking up bananas. And even Friday, when I in my stubbornness I was still pretty sick even though I ended up having to go to laundromat and shopping. The weekend was more mixed, both days I really didn’t have the wherewithal to go anywhere, though today I finally got to car wash and got my pantry restocked — that is wearing the muzzle. 
Friday I had some gotten some groceries, but I was hardly well stocked. Then I went for my evening walk. 
Damn nice day outside, but I have COVID.
But the exhaustion, sore throat, zero energy, and just staying indoors for so long without going anywhere is totally not me — it really points to COVID. It was far worse then any cold I have had in the past, even those sinus infections I had when mold was bad in my apartment, though I still kind of feel shitty at times. 
I get these times when I’m feeling I can run a mile, and then I just collapse. I don’t think I’ll have long COVID or brain fog, though I’m worried about getting my hearing back. 
and no taste either? Funny thing about it was I didn’t notice that until I did the COVID test today and it came back positive. But what would there to be to smell, I mean it wasn’t like I had enough energy to go outside with the cold 
and food for past few days has been more about filling that emptiness in my stomach then enjoying rich tastes. Plus I don’t eat processed foods, and maybe I’m not the greatest chef 
though I do try to always it healthy.
Mom was suggesting I go to doctor if I didn’t recover soon, as colds don’t usually last this long, and when they do they are bacterial and not a virus. The thing is I didn’t think it was bacterial as I didn’t have much soreness, my throat was raw like smoking too much pot around a smokey campfire, but never sore. The diziness was the big thing. Symptoms are changing, I’ve had more achiness and tightness in the throat now, but at least I’m getting my hearing back and I’m not as dizzy and tired as I was. It’s just been a wild ride. 
and we would be only 45 days away from the lockdown, when everything would close down, at all work would be remote. 
Such a weird time — I’ve never had internet at home! Still don’t. I worked from the libary parking lot in my pickup. The whole was kind of a weird time, people didn’t know anything about the virus, though it was very dangerous as there was no vaccine available at the time, the treatment regiments weren’t well established, and there was so many unknowns. Five years later, it’s little more then the cold or the flu, especially for the vaccinated. I conceded I probably shouldn’t have gone out on Friday, but I didn’t know I had COVID. 
Truth is though I needed clean clothes and groceries.
yet are killed in car crashes. Plenty of people get mugged even with the cops. Would anyone person be safer without them? Truth is though, I will get over COVID, and it’s much better to the Wu Flu five years after the start of the pandemic.
and I don’t feel like I have strep, and I didn’t do a COVID test, as I didn’t think that would change anything. Maybe it was finally COVID. Actually, I could see it being that, though I usually didn’t think of COVID as being a nose thing, and without a fever, but who knows. I could have done a COVID test, and maybe even gone to the doctor’s office on Thursday or Friday to beg for COVID medicine, but whatever. I just had how everybody blames it on the COVID or the flu, when most of the time it’s just an ordinary cold.
and I’ve really started to get a good grip on real computer programming, especially things like C libraries, linkers, NCurses library and GTK+/Pango/Cairo libraries for GUI software writing. Also been doing a lot of studying of bash shell scripting, which will help me out with work. I’ve gotten to the point where I can fairly easily just look at a header file and sometimes implementing code in either C or C++ and figure out what it actually does. 
and I didn’t get to do any trips. Maybe Tuesday if I feel better I’ll do a hike somewhere, or at least get out for a ride. Tomorrow, I’m hoping to at least get to the store and maybe down to the library. 
Maybe if it’s decent do some riding. 
Second Christmas in the row I missed out with my family, last year it was Mom that was sick. Sucks, you don’t know how many more Christmas are left with the family, they’re getting up there in years. 
