Add date buttons with periodic updates

1 files changed, 20 insertions, 4 deletions

diff --git a/src/comet.c b/src/comet.c
index 36d517a..a6d94e8 100644
--- a/src/comet.c
+++ b/src/comet.c
@@ -19,8 +19,20 @@ static gboolean mainloop_quit(gpointer data)
 static gboolean mainloop_draw(gpointer data)
 {
     State *state = data;
+    draw_compute_layout(state->draw, state->win, state->btns);
     draw_paint(state->draw, state->win);
-    return G_SOURCE_REMOVE;
+    return G_SOURCE_CONTINUE;
+}
+
+static gboolean date_update(gpointer data)
+{
+    Button *btn = data;
+    g_free(btn->text);
+    GDateTime *time = g_date_time_new_now_local();
+    btn->text = g_date_time_format(time, "%A %d    %H:%M");
+    g_assert(btn->text != NULL);
+    log_debug("Updated date");
+    return G_SOURCE_CONTINUE;
 }
 
 static void log_handler(const char *log_domain,
@@ -81,16 +93,19 @@ int main(int argc, char **argv)
         state_add_button(state, btn);
     }
 
-    Button *long_btn = button_create("long button", PANGO_ALIGN_CENTER);
+    Button *long_btn = button_create("long button", PANGO_ALIGN_RIGHT);
     button_set_colors(long_btn, background, foreground, stroke);
     button_set_action(long_btn, action);
     state_add_button(state, long_btn);
 
-    Button *date_btn = button_create("date = today", PANGO_ALIGN_RIGHT);
+    Button *date_btn = button_create("date", PANGO_ALIGN_CENTER);
     button_set_colors(date_btn, background, foreground, stroke);
     button_set_action(date_btn, action);
     state_add_button(state, date_btn);
 
+    date_update(date_btn);
+    g_timeout_add(30 * 1000, date_update, date_btn);
+
     // purple
     Color background2 = { 0.502, 0.168, 0.886, 1 };
     Button *u_btn = button_create("U", PANGO_ALIGN_RIGHT);
@@ -106,7 +121,8 @@ int main(int argc, char **argv)
     guint source_term = g_unix_signal_add(SIGTERM, mainloop_quit, mainloop);
     guint source_int  = g_unix_signal_add(SIGINT,  mainloop_quit, mainloop);
 
-    guint id = g_timeout_add(100, mainloop_draw, state);
+    // TODO: Redraw only when needed (dirty flag)
+    guint id = g_timeout_add(1000, mainloop_draw, state);
 
     log_debug("Starting main loop");
     g_main_loop_run(mainloop);