More work on choose_files

kittens/choose_files/main.go

@@ -12,34 +12,61 @@ import (
 var _ = fmt.Print
 var debugprintln = tty.DebugPrintln
 
+type State struct {
+	Base_dir string
+}
+
+type ScreenSize struct {
+	width, height, cell_width, cell_height, width_px, height_px int
+}
+
 type Handler struct {
-	lp               *loop.Loop
+	state       State
-	Current_base_dir string
+	screen_size ScreenSize
+	lp          *loop.Loop
+}
+
+func (h *Handler) draw_screen() (err error) {
+	h.lp.StartAtomicUpdate()
+	defer h.lp.EndAtomicUpdate()
+
+	return
 }
 
 func (h *Handler) OnInitialize() (ans string, err error) {
+	h.lp.AllowLineWrapping(false)
+	h.lp.SetCursorShape(loop.BAR_CURSOR, true)
+	h.draw_screen()
 	return
 }
 
 func main(_ *cli.Command, opts *Options, args []string) (rc int, err error) {
-	cwd := ""
-	switch len(args) {
-	case 0:
-		os.Getwd()
-		if cwd, err = os.Getwd(); err != nil {
-			return
-		}
-	case 1:
-		cwd = args[0]
-	default:
-		return 1, fmt.Errorf("Can only specify one directory to search in")
-	}
 	lp, err := loop.New()
 	if err != nil {
 		return 1, err
 	}
-	handler := Handler{Current_base_dir: cwd, lp: lp}
+	handler := Handler{lp: lp}
+	switch len(args) {
+	case 0:
+		os.Getwd()
+		if handler.state.Base_dir, err = os.Getwd(); err != nil {
+			return
+		}
+	case 1:
+		handler.state.Base_dir = args[0]
+	default:
+		return 1, fmt.Errorf("Can only specify one directory to search in")
+	}
 	lp.OnInitialize = handler.OnInitialize
+	lp.OnResize = func(old, new_size loop.ScreenSize) (err error) {
+		handler.screen_size.width = int(new_size.WidthCells)
+		handler.screen_size.height = int(new_size.HeightCells)
+		handler.screen_size.cell_width = int(new_size.CellWidth)
+		handler.screen_size.cell_height = int(new_size.CellHeight)
+		handler.screen_size.width_px = int(new_size.WidthPx)
+		handler.screen_size.height_px = int(new_size.HeightPx)
+		return handler.draw_screen()
+	}
 	err = lp.Run()
 	if err != nil {
 		return 1, err