MODULE test_widgets3 ;

(*
   m2-GTK4 test - common widgets: GtkFlowBox, GtkFixed, GtkPicture,
   GtkToggleButton, GtkLinkButton, GtkCalendar, GtkLevelBar and
   GtkScrollbar.  Requires a display.
*)

FROM Gio IMPORT g_application_run, g_application_quit;
FROM GtkApplication IMPORT gtk_application_new;
FROM GtkWindow IMPORT gtk_application_window_new, gtk_window_set_child;
FROM GtkBox IMPORT gtk_box_new, gtk_box_append;
FROM GtkLabel IMPORT gtk_label_new;
FROM GtkEnums IMPORT GtkVertical, GtkHorizontal, GtkSelectionSingle;
FROM GtkFlowBox IMPORT gtk_flow_box_new, gtk_flow_box_append,
   gtk_flow_box_set_max_children_per_line, gtk_flow_box_set_selection_mode,
   gtk_flow_box_child_new, gtk_flow_box_child_set_child;
FROM GtkFixed IMPORT gtk_fixed_new, gtk_fixed_put;
FROM GtkPicture IMPORT gtk_picture_new, gtk_picture_set_can_shrink,
   gtk_picture_set_content_fit, GtkContentFitContain;
FROM GtkToggleButton IMPORT gtk_toggle_button_new_with_label,
   gtk_toggle_button_set_active, gtk_toggle_button_get_active;
FROM GtkLinkButton IMPORT gtk_link_button_new, gtk_link_button_get_uri;
FROM GtkCalendar IMPORT gtk_calendar_new;
FROM GtkLevelBar IMPORT gtk_level_bar_new, gtk_level_bar_set_value,
   gtk_level_bar_get_value;
FROM GtkScrollbar IMPORT gtk_scrollbar_new;
FROM GtkUtils IMPORT Connect, CStrToM2;
FROM SYSTEM IMPORT ADDRESS, ADR;
FROM libc IMPORT printf;

CONST
   AppId = "org.example.m2gtk4.TestWidgets3";

VAR
   app: ADDRESS;
   passed: BOOLEAN;

PROCEDURE OnActivate (application: ADDRESS; data: ADDRESS);
VAR
   window, box, flow, child, fixed, picture, toggle, link, calendar,
   level, scrollbar: ADDRESS;
   buf: ARRAY [0..63] OF CHAR;
   ok: BOOLEAN;
BEGIN
   ok := TRUE;

   flow := gtk_flow_box_new();
   gtk_flow_box_append(flow, gtk_label_new("a"));
   gtk_flow_box_append(flow, gtk_label_new("b"));
   child := gtk_flow_box_child_new();
   gtk_flow_box_child_set_child(child, gtk_label_new("c"));
   gtk_flow_box_append(flow, child);
   gtk_flow_box_set_max_children_per_line(flow, 3);
   gtk_flow_box_set_selection_mode(flow, GtkSelectionSingle);

   fixed := gtk_fixed_new();
   gtk_fixed_put(fixed, gtk_label_new("at 10,20"), 10.0, 20.0);

   picture := gtk_picture_new();
   gtk_picture_set_can_shrink(picture, 1);
   gtk_picture_set_content_fit(picture, GtkContentFitContain);

   toggle := gtk_toggle_button_new_with_label("Toggle");
   gtk_toggle_button_set_active(toggle, 1);
   IF gtk_toggle_button_get_active(toggle) # 1 THEN
      printf("toggle active wrong\n"); ok := FALSE
   END;

   link := gtk_link_button_new("https://example.org");
   CStrToM2(gtk_link_button_get_uri(link), buf);
   IF (buf[0] # 'h') OR (buf[4] # 's') OR (buf[19] # 0C) THEN
      printf("link uri wrong: [%s]\n", buf); ok := FALSE
   END;

   calendar := gtk_calendar_new();
   IF calendar = NIL THEN printf("calendar NIL\n"); ok := FALSE END;

   level := gtk_level_bar_new();
   gtk_level_bar_set_value(level, 0.5);
   IF ABS(gtk_level_bar_get_value(level) - 0.5) > 0.001 THEN
      printf("level value wrong\n"); ok := FALSE
   END;

   scrollbar := gtk_scrollbar_new(GtkHorizontal, NIL);
   IF scrollbar = NIL THEN printf("scrollbar NIL\n"); ok := FALSE END;

   box := gtk_box_new(GtkVertical, 6);
   gtk_box_append(box, flow);
   gtk_box_append(box, fixed);
   gtk_box_append(box, picture);
   gtk_box_append(box, toggle);
   gtk_box_append(box, link);
   gtk_box_append(box, calendar);
   gtk_box_append(box, level);
   gtk_box_append(box, scrollbar);
   window := gtk_application_window_new(application);
   gtk_window_set_child(window, box);

   passed := ok;
   g_application_quit(application)
END OnActivate;

VAR
   rc: INTEGER;
BEGIN
   passed := FALSE;
   app := gtk_application_new(AppId, 0);
   IF app = NIL THEN
      printf("test_widgets3: 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_widgets3: PASS\n");
      HALT(0)
   ELSE
      printf("test_widgets3: FAIL\n");
      HALT(1)
   END
END test_widgets3.