evo/Gtk4-tutorial: GTK 4 tutorial for beginners

src/expression/exp.c

41 строка1 KB

Toshio Sekiya

Update section 26-30.

18 янв 2023, 08:27

18 янв 2023, 08:27e089792

#include <gtk/gtk.h>

char *
set_title (GtkWidget *win, int width, int height) {
  return g_strdup_printf ("%d x %d", width, height);
}

static void
app_activate (GApplication *application) {
  GtkApplication *app = GTK_APPLICATION (application);
  gtk_window_present (gtk_application_get_active_window(app));
}

static void
app_startup (GApplication *application) {
  GtkApplication *app = GTK_APPLICATION (application);
  GtkBuilder *build;
  GtkWidget *win;

  build = gtk_builder_new_from_resource ("/com/github/ToshioCP/exp/exp.ui");
  win = GTK_WIDGET (gtk_builder_get_object (build, "win"));
  gtk_window_set_application (GTK_WINDOW (win), app);
  g_object_unref (build);
}

#define APPLICATION_ID "com.github.ToshioCP.exp"

int
main (int argc, char **argv) {
  GtkApplication *app;
  int stat;

  app = gtk_application_new (APPLICATION_ID, G_APPLICATION_DEFAULT_FLAGS);

  g_signal_connect (app, "startup", G_CALLBACK (app_startup), NULL);
  g_signal_connect (app, "activate", G_CALLBACK (app_activate), NULL);

  stat =g_application_run (G_APPLICATION (app), argc, argv);
  g_object_unref (app);
  return stat;
}