mdw@git.distorted.org.uk Git - sgt/puzzles/blob - gtk.c

   1 /*
   2  * gtk.c: GTK front end for my puzzle collection.
   3  */
   4
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <stdarg.h>
   8
   9 #include <gtk/gtk.h>
  10
  11 #include "puzzles.h"
  12
  13 /* ----------------------------------------------------------------------
  14  * Error reporting functions used elsewhere.
  15  */
  16
  17 void fatal(char *fmt, ...)
  18 {
  19     va_list ap;
  20
  21     fprintf(stderr, "fatal error: ");
  22
  23     va_start(ap, fmt);
  24     vfprintf(stderr, fmt, ap);
  25     va_end(ap);
  26
  27     fprintf(stderr, "\n");
  28     exit(1);
  29 }
  30
  31 /* ----------------------------------------------------------------------
  32  * GTK front end to puzzles.
  33  */
  34
  35 /*
  36  * This structure holds all the data relevant to a single window.
  37  * In principle this would allow us to open multiple independent
  38  * puzzle windows, although I can't currently see any real point in
  39  * doing so. I'm just coding cleanly because there's no
  40  * particularly good reason not to.
  41  */
  42 struct window_data {
  43     GtkWidget *window;
  44 };
  45
  46 static void destroy(GtkWidget *widget, gpointer data)
  47 {
  48     gtk_main_quit();
  49 }
  50
  51 static struct window_data *new_window(void)
  52 {
  53     struct window_data *wdata;
  54
  55     wdata = snew(struct window_data);
  56
  57     wdata->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  58     gtk_signal_connect(GTK_OBJECT(wdata->window), "destroy",
  59                        GTK_SIGNAL_FUNC(destroy), wdata);
  60     gtk_widget_show(wdata->window);
  61     return wdata;
  62 }
  63
  64 int main(int argc, char **argv)
  65 {
  66     gtk_init(&argc, &argv);
  67     (void) new_window();
  68     gtk_main();
  69
  70     return 0;
  71 }