MODULE test_platform ;

(*
   m2-GTK4 test - the platform namespaces: Gdk, Gsk, libspelling and
   libpanel.  Requires a display.  libspelling/libpanel are optional.
*)

FROM GtkApplication IMPORT gtk_application_new;
FROM Gio IMPORT g_application_run, g_application_quit;
FROM GtkWindow IMPORT gtk_application_window_new, gtk_window_set_child,
   gtk_window_present;
FROM GtkLabel IMPORT gtk_label_new;
FROM GtkUtils IMPORT Connect;
FROM GdkDisplay IMPORT gdk_display_get_default;
FROM GskTransform IMPORT gsk_transform_new, gsk_transform_scale,
   gsk_transform_to_string;
FROM SpellingFunctions IMPORT spelling_init;
FROM SpellingChecker IMPORT spelling_checker_get_default;
FROM PanelFunctions IMPORT panel_init, panel_get_major_version;
FROM PanelActionMuxer IMPORT panel_action_muxer_new;
FROM PanelFrame IMPORT panel_frame_new;
FROM SYSTEM IMPORT ADDRESS, ADR;
FROM libc IMPORT printf;

CONST
   AppId = "org.example.m2gtk4.TestPlatform";

VAR
   app: ADDRESS;
   passed: BOOLEAN;
   failures: INTEGER;

PROCEDURE Check (cond: BOOLEAN; what: ARRAY OF CHAR);
BEGIN
   IF cond THEN
      printf("  ok - %s\n", what)
   ELSE
      printf("  NOT OK - %s\n", what);
      INC(failures)
   END
END Check;

PROCEDURE OnActivate (application: ADDRESS; data: ADDRESS);
VAR
   window, label: ADDRESS;
   t, t2: ADDRESS;
   s: ADDRESS;
   sx, sy: SHORTREAL;
BEGIN
   failures := 0;

   Check(gdk_display_get_default () # NIL, "GdkDisplay::get_default");

   t := gsk_transform_new();
   sx := 2.0;
   sy := 2.0;
   t2 := gsk_transform_scale (t, sx, sy);
   s := gsk_transform_to_string (t2);
   Check((t # NIL) AND (t2 # NIL) AND (s # NIL), "GskTransform scale/string");

   panel_init();
   Check(panel_get_major_version () >= 1, "libpanel version");
   Check(panel_action_muxer_new () # NIL, "PanelActionMuxer");
   Check(panel_frame_new () # NIL, "PanelFrame");

   spelling_init();
   Check(spelling_checker_get_default () # NIL, "SpellingChecker::get_default");

   window := gtk_application_window_new(application);
   label := gtk_label_new("platform namespaces: Gdk / Gsk / libspelling / libpanel");
   gtk_window_set_child(window, label);
   gtk_window_present(window);

   passed := (failures = 0);
   g_application_quit(application)
END OnActivate;

VAR
   rc: INTEGER;
BEGIN
   passed := FALSE;
   failures := 0;
   app := gtk_application_new(AppId, 0);
   IF app = NIL THEN
      printf("test_platform: FAIL (no app)\n");
      HALT(1)
   END;
   Connect(app, "activate", ADR(OnActivate), NIL);
   rc := g_application_run(app, 0, NIL);

   IF passed THEN
      printf("test_platform: PASS\n");
      HALT(0)
   ELSE
      printf("test_platform: FAIL\n");
      HALT(1)
   END
END test_platform.