1 files changed, 105 insertions, 0 deletions
diff --git a/kscurses/ui/master.jai b/kscurses/ui/master.jai
new file mode 100644
index 0000000..9cb0702
--- /dev/null
+++ b/kscurses/ui/master.jai
@@ -0,0 +1,105 @@
+UI_Master :: struct {
+	style : UI_Style;
+	canvas : Canvas;
+	root : *UI_Elem;
+	should_exit := false;
+
+	blink_stage := 0;
+
+	before_draw : struct {
+		proc := (data : *void) { };
+		data : *void;
+	};
+	extra_handle : struct {
+		proc := (e : Event, data : *void) { };
+		data : *void;		
+	};
+}
+__ui_master : UI_Master;
+
+
+set_main_scene :: (scene : UI_Scene) {
+	__ui_master.root = scene.root;
+	set_active_recursive(scene.entry);
+}
+run_singlethread_ui :: () {
+	use_default_winch_handler();
+	using __ui_master;
+	while 1 {
+		before_draw.proc(before_draw.data);
+		if should_exit break;
+		draw(*__ui_master);
+		reset_temporary_storage();
+		handle_key(*__ui_master, ks_getch(block = false));
+		if should_exit break;
+	}
+	deinit(*__ui_master);
+}
+run_multithread_ui :: () {
+	use_events(tick_duration_ms = 530);
+	__event_handler = .{
+		proc = (e : Event, __data : *void) {
+			using __ui_master;
+			if e.type == {
+				case .KEY;
+				handle_key(*__ui_master, e.key);
+				case .TICK;
+				#if ENABLE_UI_BLINKING __ui_master.blink_stage = xx !__ui_master.blink_stage;
+			}
+			extra_handle.proc(e, extra_handle.data);
+		},
+		data = null
+	}; defer __event_handler = .{};
+
+	using __ui_master;
+
+	while 1 {
+		before_draw.proc(before_draw.data);
+		if should_exit break;
+		processed := wait_and_process_events();
+		if should_exit break;
+		if processed {
+			draw(*__ui_master);
+			reset_temporary_storage();			
+		}
+	}
+	deinit(*__ui_master);
+}
+
+#scope_file
+draw :: (using ui_master : *UI_Master) {
+	new_zone := Ibox2.{size = terminal_state.size};
+	builder : String_Builder;
+
+	if new_zone != canvas.zone {
+		resize_clear(*canvas, new_zone);
+	}
+	ok := c_draw(*canvas, root, canvas.zone, *style);
+	if ok {
+		ks_draw_canvas(*canvas);
+	} else {
+		b_mode_set(*builder, style.text.default);
+		b_clear_screen(*builder);
+		b_print(*builder, .{0, 0}, style.text.debug, "screen to small: %x%", terminal_state.size.x, terminal_state.size.y);
+	}
+	b_cursor_set_visibility(*builder, terminal_state.cursor != ivec2.{-1, -1});
+	if terminal_state.cursor != ivec2.{-1, -1} then b_move_cursor(*builder, terminal_state.cursor);
+
+	ks_write(builder_to_string(*builder, allocator = temp));
+}
+handle_key :: (using ui_master : *UI_Master, key : Key) {
+	handled := handle_key(root, key);
+	if handled return;
+
+	if key == {
+		case .ESCAPE; {
+			should_exit = true;
+			unset_active_recursive(__last_set);
+		}
+		case; if key != .READ_ERROR ui_bell();
+	}
+}
+deinit :: (using ui_master : *UI_Master) {
+	deinit(*canvas);
+	__ui_master = .{};
+}
+\ No newline at end of file