add edit step + do recipe in main view, added carousel for recipe selection

README.md

@@ -3,10 +3,49 @@
 ## Install Requirements
 
 ```bash
-pip install -r requirements.txt
+uv sync
 ```
 
 ## Run
 ```bash
-python -m frontend.app
+uv run -m frontend
+```
+
+## Navigation
+
+```mermaid
+stateDiagram-v2
+    [*] --> Main
+
+    state "Main View<br>(timer + weight)" as Main
+    state "Recipe Selection<br>(carousel)" as RecipeSelection
+    state "Do Recipe<br>(step-by-step)" as DoRecipe
+    state "Edit Recipe<br>(step list)" as EditRecipe
+    state "Edit Recipe – Move Mode<br>(reorder steps)" as MoveMode
+    state "Edit Step – Type Selection<br>(list view)" as TypeSelect
+    state "Edit Step – Value Entry<br>(morse input)" as ValueEntry
+    state "Edit Step – Goal Time Entry<br>(morse input)" as GoalTime
+
+    Main --> RecipeSelection : right long press
+
+    RecipeSelection --> Main : left long press
+    RecipeSelection --> DoRecipe : right long press [on recipe → run]
+    RecipeSelection --> EditRecipe : both long press [on recipe → edit]<br>or right long press [on + → add]
+
+    DoRecipe --> Main : left long press [back]<br>or right press [last step → done]
+
+    EditRecipe --> RecipeSelection : left long press [back]<br>or right long press [on save]
+    EditRecipe --> TypeSelect : right long press [on step]<br>or right long press [on + → add step]
+    EditRecipe --> ValueEntry : right long press [on name]
+    EditRecipe --> MoveMode : both long press [on step]
+
+    MoveMode --> EditRecipe : both long press [confirm]<br>or left long press [cancel]
+
+    TypeSelect --> ValueEntry : right long press [type with value]
+    TypeSelect --> EditRecipe : right long press [type w/o value → saved]<br>or right long press [delete → deleted]<br>or left long press [back]
+
+    ValueEntry --> EditRecipe : left long press [save]<br>or left press [cancel]
+    ValueEntry --> GoalTime : left long press [WEIGH_WITH_TIMER]
+
+    GoalTime --> EditRecipe : left long press [save]<br>or left press [cancel]
 ```

frontend/__main__.py

@@ -71,6 +71,18 @@ class WeightApp(tk.Tk):
         self.record_button = ttk.Button(self.recording_frame, text="Record", command=self.trigger_record)
         self.record_button.pack()
 
+        #### Morse Reference ####
+        morse_text = (
+            "A .-    B -...  C -.-.  D -..   E .     F .-..\n"
+            "G --.   H ....  I ..    J .---  K -.-   L .-..\n"
+            "M --    N -.    O ---   P .--.  Q --.-  R .-. \n"
+            "S ...   T -     U ..-   V ...-  W .--   X -..-\n"
+            "Y -.--  Z --..  0 ----- 1 .---- 2 ..--- 3 ...--\n"
+            "4 ....- 5 ..... 6 -.... 7 --... 8 ---.. 9 ----."
+        )
+        self.morse_label = tk.Label(self.toolbar, text=morse_text, font=("Courier", 9), justify="left",
+                                    anchor="w")
+
         #### Display ####
         self.update_view()
 
@@ -86,11 +98,13 @@ class WeightApp(tk.Tk):
         self.reader_settings.pack_forget()
         self.view_type.pack_forget()
         self.recording_frame.pack_forget()
+        self.morse_label.pack_forget()
         self.view.pack_forget()
 
         self.reader_settings.pack()
         self.view_type.pack()
         self.recording_frame.pack()
+        self.morse_label.pack(pady=(10, 0))
         self.view.pack()
     
     def hide_device_components(self):
@@ -98,6 +112,7 @@ class WeightApp(tk.Tk):
         self.reader_settings.pack_forget()
         self.view_type.pack_forget()
         self.recording_frame.pack_forget()
+        self.morse_label.pack_forget()
         self.view.pack_forget()
 
         self.connection_settings.pack()

frontend/views/__init__.py

@@ -1,4 +1,5 @@
 from .number import NumberView
 from .circle import CircleView
 from .timer import TimerView
+from .text import TextView
 from .main_view import MainView

frontend/views/button_interface.py

@@ -32,3 +32,6 @@ class ButtonInterface:
 
     def render_right_long_press(self, draw, x, y):
         pass
+
+    def render_both_long_press(self, draw, x, y):
+        pass

frontend/views/buttons_manager.py

@@ -48,23 +48,25 @@ class ButtonsManager(View):
         has_buttons = self.current_view.has_button()
         # Draw left button
         if has_buttons[0]:
-            draw.circle((10, 10), 2, fill='black')
+            # draw.circle((10, 10), 2, fill='black')
-            self.current_view.render_left_press(draw, 20, 10)
+            self.current_view.render_left_press(draw, 10, 10)
 
         if has_buttons[1]:
             y = self.size[1] - 10
-            draw_long_press(draw, (10, y))
+            # draw_long_press(draw, (10, y))
-            self.current_view.render_left_long_press(draw, 24, y)
+            self.current_view.render_left_long_press(draw, 10, y)
         
         # Draw right button
         if has_buttons[2]:
-            draw.circle((self.size[0] - 10, 10), 2, fill='black')
+            # draw.circle((self.size[0] - 10, 10), 2, fill='black')
-            self.current_view.render_right_press(draw, self.size[0] - 20, 4)
+            self.current_view.render_right_press(draw, self.size[0] - 10, 4)
 
         if has_buttons[3]:
             y = self.size[1] - 10
-            draw_long_press(draw, (self.size[0] - 10, y))
+            # draw_long_press(draw, (self.size[0] - 10, y))
-            self.current_view.render_right_long_press(draw, self.size[0] - 24, y)
+            self.current_view.render_right_long_press(draw, self.size[0] - 10, y)
+
+        self.current_view.render_both_long_press(draw, self.size[0] // 2, self.size[1] - 10)
 
         return im
     

frontend/views/circle.py

@@ -6,6 +6,18 @@ from .base import View
 
 class CircleView(View):
 
+    @property
+    def target(self):
+        try:
+            return float(self._target.get())
+        except ValueError:
+            return 0.0
+    
+    @target.setter
+    def target(self, value):
+        self._target.delete(0, tk.END)
+        self._target.insert(0, str(value))
+
     def __init__(self, parent, size, center, radius_offset=11, **kwargs):
         self.target_radius = min(center) - radius_offset
         super().__init__(parent, size, center, **kwargs)
@@ -13,11 +25,11 @@ class CircleView(View):
     def init_ui(self, parent):
         self.ui = tk.Frame(parent)
         self.ui.pack()
-        self.target_label = ttk.Label(self.ui, text="Target (g)")
+        self._target_label = ttk.Label(self.ui, text="Target (g)")
-        self.target_label.pack(side=tk.LEFT)
+        self._target_label.pack(side=tk.LEFT)
-        self.target = ttk.Entry(self.ui)
+        self._target = ttk.Entry(self.ui)
-        self.target.insert(0, 100.0)
+        self._target.insert(0, "0.0")
-        self.target.pack(side=tk.LEFT)
+        self._target.pack(side=tk.LEFT)
 
     def _init_im(self):
         im = Image.new('1', self.size, 'white')
@@ -30,7 +42,7 @@ class CircleView(View):
         weight_radius = 0.0
         bkg_im = self.bkg_im.copy()
         try:
-            target = float(self.target.get())
+            target = float(self._target.get())
             if target > 0:
                 draw = ImageDraw.Draw(bkg_im)
                 draw.text((60, 98), f"{target:.1f} g", fill='black', font_size=16)

frontend/views/list_select/__init__.py

@@ -0,0 +1,4 @@
+from .item import ListItem
+from .base import SelectableList
+from .list_view import ListView
+from .carousel import CarouselView

frontend/views/list_select/base.py

@@ -0,0 +1,88 @@
+from __future__ import annotations
+
+from abc import ABC, abstractmethod
+from typing import List
+
+from PIL import ImageDraw
+
+from .item import ListItem
+
+
+class SelectableList(ABC):
+    """Abstract base for list and carousel selection widgets.
+
+    Manages a collection of :class:`ListItem` objects with a single
+    *selected_index*, wrapping navigation, and a shared highlight-bar
+    drawing primitive.  Concrete subclasses (:class:`ListView`,
+    :class:`CarouselView`) only differ in how they render the items.
+
+    The two subclasses expose an identical public interface so they can
+    be swapped interchangeably.
+    """
+
+    def __init__(self,
+                 items: List[ListItem] | None = None,
+                 x_offset: int = 40,
+                 max_visible: int = 5,
+                 item_height: int = 20):
+        self._items: List[ListItem] = list(items or [])
+        self.selected_index: int = 0
+        self.x_offset = x_offset
+        self.max_visible = max_visible
+        self.item_height = item_height
+
+    # ---- item access ------------------------------------------------
+
+    @property
+    def items(self) -> List[ListItem]:
+        return self._items
+
+    @items.setter
+    def items(self, value: List[ListItem]):
+        self._items = list(value)
+        if self._items and self.selected_index >= len(self._items):
+            self.selected_index = len(self._items) - 1
+        elif not self._items:
+            self.selected_index = 0
+
+    @property
+    def selected_item(self) -> ListItem | None:
+        if self._items and 0 <= self.selected_index < len(self._items):
+            return self._items[self.selected_index]
+        return None
+
+    # ---- navigation -------------------------------------------------
+
+    def select_previous(self):
+        """Move selection to the previous item (wraps around)."""
+        if self._items:
+            self.selected_index = (self.selected_index - 1) % len(self._items)
+
+    def select_next(self):
+        """Move selection to the next item (wraps around)."""
+        if self._items:
+            self.selected_index = (self.selected_index + 1) % len(self._items)
+
+    # ---- drawing helpers --------------------------------------------
+
+    def _draw_highlight(self,
+                        draw: ImageDraw.ImageDraw,
+                        x: int,
+                        y_center: int,
+                        font_size: int = 10,
+                        width: int = 90):
+        """Draw a rounded highlight bar via overlapping circles.
+
+        The bar radius is derived from *font_size* so the bar always
+        fits snugly around the rendered text.
+        """
+        r = font_size // 2 + 4
+        for i in range(0, width, max(1, r // 2)):
+            draw.circle((x + i, y_center), r, fill='black')
+
+    # ---- rendering (subclass) ---------------------------------------
+
+    @abstractmethod
+    def render(self, draw: ImageDraw.ImageDraw, y_start: int) -> None:
+        """Render the widget onto *draw* starting at *y_start*."""
+        ...

frontend/views/list_select/carousel.py

@@ -0,0 +1,67 @@
+from __future__ import annotations
+
+from PIL import ImageDraw
+
+from .base import SelectableList
+
+
+class CarouselView(SelectableList):
+    """Single-item display – shows the selected item centred and larger.
+
+    Position indicator dots at the bottom communicate how many items
+    exist and which one is currently selected.  Uses
+    :pymethod:`ListItem.render_large` so callers can optionally provide
+    a more detailed rendering for carousel mode.
+
+    ``large_font_size`` controls the font size passed to
+    :pymethod:`ListItem.render_large` (default 30, roughly 3× PIL default).
+
+    ``center_x`` sets the horizontal centre used when drawing the item text
+    (default 84, the midpoint of a 168 px wide display).  PIL's ``anchor='mm'``
+    is forwarded so the text is centred on that x coordinate.
+
+    ``render_height`` is the total vertical space (in pixels) allocated to the
+    carousel; dots are placed at the very bottom of this region.  Defaults to
+    ``max_visible * item_height``.
+    """
+
+    def __init__(self, *args,
+                 large_font_size: int = 30,
+                 center_x: int = 84,
+                 render_height: int | None = None,
+                 **kwargs):
+        super().__init__(*args, **kwargs)
+        self.large_font_size = large_font_size
+        self.center_x = center_x
+        self.render_height = render_height
+
+    def render(self, draw: ImageDraw.ImageDraw, y_start: int) -> None:
+        if not self._items:
+            return
+
+        item = self._items[self.selected_index]
+        height = self.render_height or (self.max_visible * self.item_height)
+        y_center = y_start + height // 2
+
+        # Render selected item centred (large variant, no highlight)
+        item.render_large(
+            draw,
+            (self.center_x, y_center),
+            fill='black',
+            font_size=self.large_font_size,
+            anchor='mm',
+        )
+
+        total = len(self._items)
+
+        # Position indicator dots at the top of the allocated area
+        if total > 1:
+            indicator_y = y_start
+            dot_spacing = min(8, max(4, 80 // max(total - 1, 1)))
+            total_width = (total - 1) * dot_spacing
+            start_x = self.center_x - total_width // 2
+
+            for i in range(total):
+                x = start_x + i * dot_spacing
+                r = 2 if i == self.selected_index else 1
+                draw.circle((x, indicator_y), r, fill='black')

frontend/views/list_select/item.py

@@ -0,0 +1,47 @@
+from typing import Callable, Tuple
+
+from PIL import ImageDraw
+
+
+RenderFn = Callable[[ImageDraw.ImageDraw, Tuple[int, int], str], None]
+
+
+class ListItem:
+    """A renderable item for use in ListView or CarouselView.
+
+    Each item carries a render function called as render_fn(draw, (x, y), fill).
+    An optional render_large_fn is used by CarouselView for a more prominent
+    display; it falls back to render_fn when not provided.
+    """
+
+    def __init__(self,
+                 render_fn: RenderFn,
+                 render_large_fn: RenderFn | None = None):
+        self._render_fn = render_fn
+        self._render_large_fn = render_large_fn
+
+    def render(self,
+               draw: ImageDraw.ImageDraw,
+               position: Tuple[int, int],
+               fill: str = 'black',
+               **kwargs):
+        """Render the item at normal (list) size.
+
+        Extra keyword arguments (e.g. ``font_size``) are forwarded to the
+        underlying render function.
+        """
+        self._render_fn(draw, position, fill, **kwargs)
+
+    def render_large(self,
+                     draw: ImageDraw.ImageDraw,
+                     position: Tuple[int, int],
+                     fill: str = 'black',
+                     **kwargs):
+        """Render the item at large (carousel) size.
+
+        Uses render_large_fn if provided, otherwise falls back to render_fn.
+        Extra keyword arguments (e.g. ``font_size``) are forwarded to the
+        underlying render function.
+        """
+        fn = self._render_large_fn or self._render_fn
+        fn(draw, position, fill, **kwargs)

frontend/views/list_select/list_view.py

@@ -0,0 +1,54 @@
+from __future__ import annotations
+
+from typing import List, Tuple
+
+from PIL import ImageDraw
+
+from .base import SelectableList
+from .item import ListItem
+
+
+class ListView(SelectableList):
+    """Compact scrolling list – shows up to *max_visible* items at once.
+
+    The visible window is kept centred on the selected item and scrolls
+    as the selection moves.
+
+    ``font_size`` is forwarded to :pymeth:`ListItem.render` so the
+    underlying render function can use it (e.g. for PIL ``draw.text``).
+    Pass ``None`` to let render functions use their own default.
+    """
+
+    def __init__(self, *args, font_size: int | None = None, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.font_size = font_size
+
+    def _get_visible_window(self) -> Tuple[List[ListItem], int]:
+        """Return (visible_items, start_offset)."""
+        total = len(self._items)
+        if total <= self.max_visible:
+            return self._items, 0
+
+        start = max(0, self.selected_index - self.max_visible // 2)
+        start = min(start, total - self.max_visible)
+        end = start + self.max_visible
+        return self._items[start:end], start
+
+    def render(self, draw: ImageDraw.ImageDraw, y_start: int) -> None:
+        if not self._items:
+            return
+
+        visible_items, start = self._get_visible_window()
+
+        fs = self.font_size or 10
+        kwargs = {} if self.font_size is None else {'font_size': self.font_size}
+
+        for idx, item in enumerate(visible_items):
+            actual_idx = start + idx
+            y_pos = y_start + idx * self.item_height
+
+            if actual_idx == self.selected_index:
+                self._draw_highlight(draw, self.x_offset, y_pos + fs // 2, font_size=fs)
+                item.render(draw, (self.x_offset, y_pos), fill='white', **kwargs)
+            else:
+                item.render(draw, (self.x_offset, y_pos), fill='black', **kwargs)

frontend/views/main_view.py

@@ -6,12 +6,12 @@ from PIL import ImageChops
 
 from ..config import DISPLAY_TYPES, DISPLAY_MODES
 from .draw_utils import draw_clock
-from . import NumberView, CircleView, TimerView
+from . import NumberView, CircleView, TimerView, TextView
 
 from .button_interface import ButtonInterface
 from .buttons_manager import ButtonsManager
 
-from .recipes import RecipeSelection, RecipeManager, EditRecipe, Recipe, EditStep
+from .recipes import RecipeSelection, RecipeManager, EditRecipe, EditStep, StepType, Step
 
 class MainView(tk.Frame, ButtonInterface):
     def __init__(self, parent,
@@ -19,6 +19,7 @@ class MainView(tk.Frame, ButtonInterface):
                  calibrate_command=None,
                  **kwargs):
         super().__init__(parent, **kwargs)
+        self.curr_mode = DISPLAY_MODES.MAIN
         self.views = []
         self.timer_view = None  # Timer view is always active
         self.tare_command = tare_command
@@ -37,42 +38,73 @@ class MainView(tk.Frame, ButtonInterface):
                              highlightthickness=1, highlightbackground="black")
         self.canvas.pack()
 
-
         self.timer_view = TimerView(self.actions, self.im_size, self.center)
+        self.weigh_view = None # Initialize weigh_view to None; will be created if CIRCLE display type is selected
+        self.text_view = TextView(self.actions, self.im_size, self.center)
         self.buttons = ButtonsManager(self, self.im_size, self.center,
                                       curr_view=self)
         self.recipes_manager = RecipeManager()
-        
+        self.current_steps = [None] * 3
-        self.curr_mode = DISPLAY_MODES.MAIN
+        self.tare_buffer = []
+        self.timer_buffer = []
+        self.weigh_target_buffer = []
     
     def has_button(self):
         return True, True, True, True
 
     def left_press(self):
-        self.timer_view.toggle_timer()
+        if self.curr_mode == DISPLAY_MODES.MAIN:
+            self.timer_view.toggle_timer()
+        elif self.curr_mode == DISPLAY_MODES.DO_RECIPE:
+            self.previous_recipe_step()
     
     def left_long_press(self):
-        self.timer_view.reset_timer()
+        if self.curr_mode == DISPLAY_MODES.MAIN:
+            self.timer_view.reset_timer()
+        elif self.curr_mode == DISPLAY_MODES.DO_RECIPE:
+            self.exit_recipe()
     
     def right_press(self):
-        self.tare_command()
+        if self.curr_mode == DISPLAY_MODES.MAIN:
+            self.tare_command()
+        elif self.curr_mode == DISPLAY_MODES.DO_RECIPE:
+            self.next_recipe_step()
     
     def right_long_press(self):
+        if self.curr_mode == DISPLAY_MODES.DO_RECIPE:
+            return
         self.enter_recipe_selection()
 
 
     def render_left_press(self, draw, x, y):
-        draw_clock(draw, (x, y), radius=3)
+        if self.curr_mode == DISPLAY_MODES.MAIN:
+            draw_clock(draw, (x, y), radius=3)
+        elif self.curr_mode == DISPLAY_MODES.DO_RECIPE:
+            if self.current_steps[0] is not None:
+                draw.regular_polygon((x, y, 5), 3, fill='black', rotation=210)
+                draw.text((x + 6, y - 5), self.current_steps[0].value_str, fill='black')
 
     def render_left_long_press(self, draw, x, y):
-        draw_clock(draw, (x, y), radius=3)
+        if self.curr_mode == DISPLAY_MODES.MAIN:
-        draw.text((x + 6, y - 5), "0.0", fill='black')
+            draw_clock(draw, (x, y), radius=3)
+            draw.text((x + 6, y - 5), "0.0", fill='black')
+        elif self.curr_mode == DISPLAY_MODES.DO_RECIPE:
+            draw.text((x, y - 5), "Exit", fill='black')
 
     def render_right_press(self, draw, x, y):
-        draw.text((x, y), "T", fill='black')
+        if self.curr_mode == DISPLAY_MODES.MAIN:
+            draw.text((x, y), "T", fill='black')
+        elif self.curr_mode == DISPLAY_MODES.DO_RECIPE:
+            if self.current_steps[2] is not None:
+                draw.regular_polygon((x, y+5, 5), 3, fill='black', rotation=30)
+                value = self.current_steps[2].value_str
+                draw.text((x - 6 * len(value) - 5, y), value, fill='black')
+            else:
+                draw.text((x - 24, y), "Done", fill='black')
 
     def render_right_long_press(self, draw, x, y):
-        draw.text((x, y - 5), "R", fill='black')
+        if self.curr_mode == DISPLAY_MODES.MAIN:
+            draw.text((x, y - 5), "R", fill='black')
 
 
     def enter_main_mode(self):
@@ -86,9 +118,18 @@ class MainView(tk.Frame, ButtonInterface):
                                                     self.im_size, self.center,
                                                     recipe_manager=self.recipes_manager,
                                                     edit_recipe_command=self.enter_edit_recipe,
+                                                    run_recipe_command=self.enter_do_recipe,
                                                     deactivate_command=self.enter_main_mode)
         self.refresh(0.0)
 
+    def enter_do_recipe(self, recipe_id: int):
+        self.curr_mode = DISPLAY_MODES.DO_RECIPE
+        self.timer_view.reset_timer()  # Reset timer at start of recipe
+        self.recipes_manager.activate_recipe(recipe_id)
+        self.current_steps = self.recipes_manager.get_current_step()
+        self.buttons.current_view = self
+        self.refresh(0.0)
+
     def enter_edit_recipe(self, recipe_id: int = None):
         self.curr_mode = DISPLAY_MODES.EDIT_RECIPE
         self.buttons.current_view = EditRecipe(self,
@@ -109,6 +150,77 @@ class MainView(tk.Frame, ButtonInterface):
                                             deactivate_command=lambda: self.enter_edit_recipe(recipe_id))
         self.refresh(0.0)
     
+
+    ##### Recipe navigation in DO_RECIPE mode #####
+    def next_recipe_step(self):
+        self.current_steps = self.recipes_manager.next_step()
+        if self.current_steps[1] is None:
+            self.exit_recipe()
+            return
+    
+        self.do_recipe_step(self.current_steps[1])
+        self.refresh(0.0)
+    
+    def previous_recipe_step(self):
+        self.current_steps = self.recipes_manager.previous_step()
+        self.do_recipe_step(self.current_steps[1], reverse=True)
+        self.refresh(0.0)
+    
+    def exit_recipe(self):
+        self.recipes_manager.deactivate_recipe()
+        self.timer_view.reset_timer()
+        self.weigh_view.target = 0.0
+        self.weigh_target_buffer.clear()
+        self.timer_buffer.clear()
+        self.tare_buffer.clear()
+        self.enter_main_mode()
+    
+    def do_recipe_step(self, step: Step, reverse=False):
+        if step is None:
+            return
+        
+        last_step = self.current_steps[0]
+        if last_step is not None and last_step.step_type == StepType.WEIGH_WITH_TIMER and not reverse:
+            self.timer_view.goal_secs = 0.0
+        elif last_step is not None and last_step.step_type == StepType.SECTION and not reverse:
+            self.weigh_view.target = 0.0
+            self.timer_view.goal_secs = 0.0
+            
+        
+        if step.step_type == StepType.TARE:
+            if not reverse:
+                tare_weight = self.tare_command()
+                self.tare_buffer.append(tare_weight) # buffer last tare weight in case we need to revert
+            elif self.tare_buffer:
+                tare_weight = self.tare_buffer.pop()
+                self.tare_command(tare_weight)
+            else:
+                raise ValueError("Tare buffer is empty, cannot revert tare step")
+
+        elif step.step_type == StepType.WEIGH:
+            if not reverse:
+                self.weigh_view.target = step.value
+                self.weigh_target_buffer.append(step.value)
+            else:
+                if self.weigh_target_buffer:
+                    self.weigh_view.target = self.weigh_target_buffer.pop()
+                else:
+                    self.weigh_view.target = 0.0
+        elif step.step_type == StepType.WEIGH_WITH_TIMER:
+            if not reverse:
+                self.timer_view.reset_timer()
+                self.timer_view.goal_secs = step.goal_time if step.goal_time > 0 else 0
+                self.timer_view.toggle_timer()
+                self.weigh_view.target = step.value
+                self.weigh_target_buffer.append(step.value)
+            else:
+                self.timer_view.reset_timer()
+                if self.weigh_target_buffer:
+                    self.weigh_view.target = self.weigh_target_buffer.pop()
+                else:
+                    self.weigh_view.target = 0.0
+
+    
     ################ VIEW MANAGEMENT ################
 
     def update_views(self, selected_types: DISPLAY_TYPES):
@@ -123,25 +235,41 @@ class MainView(tk.Frame, ButtonInterface):
             self.views.append(number_view)
 
         if selected_types & DISPLAY_TYPES.CIRCLE:
-            circle_view = CircleView(self.actions, self.im_size, self.center)
+            self.weigh_view = CircleView(self.actions, self.im_size, self.center)
-            self.views.append(circle_view)
+            self.views.append(self.weigh_view)
 
 
     def refresh(self, weight: float):
         ims = []
 
-        if self.curr_mode == DISPLAY_MODES.MAIN:
+        if self.curr_mode == DISPLAY_MODES.MAIN or self.curr_mode == DISPLAY_MODES.DO_RECIPE:
             # Always include timer and button view
-            if self.timer_view:
+            if self.curr_mode == DISPLAY_MODES.MAIN or \
+               (self.current_steps[1] is not None and \
+               self.current_steps[1].step_type != StepType.SECTION):
                 timer_im = self.timer_view.update_weight(weight)
-                button_im = self.buttons.update_weight(weight)
                 ims.append(timer_im)
-                ims.append(button_im)
+            elif self.curr_mode == DISPLAY_MODES.DO_RECIPE and \
+                 self.current_steps[1].step_type == StepType.SECTION:
+                if self.current_steps[1] is None:
+                    self.text_view.set_text("Enjoy")
+                else:
+                    # In recipe mode, if current step is a section, show a blank screen instead of timer
+                    self.text_view.set_text(self.current_steps[1].value_str)
                 
-            # Add other selected views
+                text_im = self.text_view.update_weight(weight)
-            for view in self.views:
+                ims.append(text_im)
-                im = view.update_weight(weight)
+
-                ims.append(im)
+            button_im = self.buttons.update_weight(weight)
+            ims.append(button_im)
+            
+            if self.curr_mode == DISPLAY_MODES.MAIN or \
+               self.current_steps[1] is None or \
+               self.current_steps[1].step_type != StepType.SECTION:
+                # Add other selected views
+                for view in self.views:
+                    im = view.update_weight(weight)
+                    ims.append(im)
         
         else:
             button_im = self.buttons.update_weight(weight)

frontend/views/recipes/__init__.py

@@ -2,4 +2,4 @@ from .recipe_selection import RecipeSelection
 from .recipe_manager import RecipeManager
 from .edit_recipe import EditRecipe
 from .edit_step import EditStep
-from .recipe import Recipe
+from .recipe import Recipe, StepType, Step

frontend/views/recipes/edit_recipe.py

@@ -1,11 +1,38 @@
 from typing import Tuple
 from PIL import ImageDraw, Image
+from copy import deepcopy
 
 from ..base import View
 from ..button_interface import ButtonInterface
+from ..list_select import ListItem, ListView
 
 from .recipe_manager import RecipeManager
-from .recipe import Recipe
+from .recipe import Recipe, Step, StepType
+
+
+def _make_step_item(step):
+    """ListItem that renders a recipe step (icon + value)."""
+    def render(draw, pos, fill, **kw):
+        step.step_type.render(draw, pos, fill=fill, **kw)
+        font_size = kw.get('font_size', 10)
+        draw.text((pos[0] + font_size + 12, pos[1]), step.value_str, fill=fill, **kw)
+    return ListItem(render)
+
+
+def _make_add_item():
+    """ListItem that renders as a '+' add button."""
+    return ListItem(lambda draw, pos, fill, **kw: draw.text(pos, '+', fill=fill, **kw))
+
+
+def _make_cancel_item():
+    """ListItem that renders as 'Cancel'."""
+    return ListItem(lambda draw, pos, fill, **kw: draw.text(pos, 'Cancel', fill=fill, **kw))
+
+
+def _make_save_item():
+    """ListItem that renders as 'Save'."""
+    return ListItem(lambda draw, pos, fill, **kw: draw.text(pos, 'Save', fill=fill, **kw))
+
 
 class EditRecipe(View, ButtonInterface):
     def __init__(self, parent, im_size, center,
@@ -22,108 +49,144 @@ class EditRecipe(View, ButtonInterface):
             self.recipe = Recipe("New", [])
             self.recipe_manager.tmp_recipe = self.recipe
         else:
-            self.recipe = recipe_manager.get_recipe(recipe_id)
+            self.recipe = deepcopy(recipe_manager.get_recipe(recipe_id))
 
         self.confirm_view = False
-        self.selected_field = 0  # 0: name, 1+: steps
+        self.move_mode = False
+        self.item_list = ListView(x_offset=40, max_visible=5, font_size=15)
+        self._rebuild_items()
 
         super().__init__(parent, im_size, center)
 
-    def _get_visual_steps(self):
+    def _make_name_item(self):
-        steps = self.recipe.steps + ['+', 'BACK']
+        """ListItem that renders the recipe name field."""
-        if len(steps) < 4:
+        recipe = self.recipe
-            return steps, 0
+        def render(draw, pos, fill, **kw):
+            draw.text(pos, f"Name: {recipe.name}", fill=fill, **kw)
+        return ListItem(render)
 
-        start = max(0, self.selected_field - 2)
+    def _rebuild_items(self):
-        end = min(len(steps), start + 4)
+        """Rebuild list items from current recipe state."""
-
+        old_index = self.item_list.selected_index
-        steps = steps[start:end]
+        items = [self._make_name_item()]
-
+        for step in self.recipe.steps:
-        return steps, start
+            items.append(_make_step_item(step))
+        if self.move_mode:
+            items.append(_make_cancel_item())
+        else:
+            items.append(_make_add_item())
+            items.append(_make_save_item())
+        self.item_list.items = items
+        self.item_list.selected_index = min(old_index, len(items) - 1)
 
     def update_weight(self, weight: float) -> Image.Image:
         im = self.bkg_im.copy()
         draw = ImageDraw.Draw(im)
-
+        self._rebuild_items()
-        x = 40
+        self.item_list.render(draw, y_start=10)
-
+        if self.move_mode:
-        draw.text((x, 10), "Name:", fill='black')
+            draw.text((2, 10), '\u2195', fill='black')
-        if self.selected_field == 0:
-            r = 10
-            offset = 35
-            for i in range(0, 90, r // 2):
-                draw.circle((x + i, offset), r, fill='black')
-            draw.text((x, 30), self.recipe.name, fill='white')
-        else:
-            draw.text((x, 30), self.recipe.name, fill='black')
-
-        visual_steps, start = self._get_visual_steps()
-
-        for idx, step in enumerate(visual_steps):
-            y_pos = 60 + idx * 20
-            if start + idx + 1 == self.selected_field:
-                r = 10
-                offset = 15
-                for i in range(0, 90, r // 2):
-                    draw.circle((x + i, y_pos), r, fill='black')
-
-
-                if str(step) == '+':
-                    draw.text((x, y_pos - 5), '+', fill='white')
-                elif str(step) == 'BACK':
-                    draw.regular_polygon((x + 5, y_pos, 5), 3, fill='white', rotation=90)
-                else:
-                    step.step_type.render(draw, (x, y_pos - 5), fill='white')
-                    draw.text((x + 30, y_pos - 5), step.value_str, fill='white')
-
-            elif str(step) == '+':
-                draw.text((x, y_pos - 5), '+', fill='black')
-            elif str(step) == 'BACK':
-                    draw.regular_polygon((x + 5, y_pos, 5), 3, fill='black', rotation=90)
-            else:
-                step.step_type.render(draw, (x, y_pos - 5), fill='black')
-                draw.text((x + 30, y_pos - 5), step.value_str, fill='black')
-
         return im
 
     def left_press(self):
-        self.selected_field = (self.selected_field - 1) % (len(self.recipe.steps) + 3)
+        if self.move_mode:
+            idx = self.item_list.selected_index
+            num_steps = len(self.recipe.steps)
+            if 1 < idx <= num_steps:  # swap step upward
+                steps = self.recipe.steps
+                step_idx = idx - 1
+                steps[step_idx - 1], steps[step_idx] = steps[step_idx], steps[step_idx - 1]
+                self.item_list.selected_index -= 1
+            elif idx == num_steps + 1:  # on cancel -> move to last step (clamped, no wrap)
+                self.item_list.selected_index = num_steps
+        else:
+            self.item_list.select_previous()
 
     def left_long_press(self):
-        if self.selected_field == len(self.recipe.steps) + 2:
+        if self.move_mode:
-            # back
+            idx = self.item_list.selected_index
-            self.deactivate_command()
+            num_steps = len(self.recipe.steps)
-        elif self.selected_field == len(self.recipe.steps) + 1:
+            if idx == num_steps + 1:  # cancel item
-            # add step
+                self.move_mode = False
-            pass
+            return
-        else:
+        # always go back (discard unsaved changes)
-            # edit name
+        self.deactivate_command()
-            self.edit_step_command(self.recipe_id, self.selected_field)
 
     def right_press(self):
-        self.selected_field = (self.selected_field + 1) % (len(self.recipe.steps) + 3)
+        if self.move_mode:
+            idx = self.item_list.selected_index
+            num_steps = len(self.recipe.steps)
+            if 1 <= idx < num_steps:  # swap step downward
+                steps = self.recipe.steps
+                step_idx = idx - 1
+                steps[step_idx], steps[step_idx + 1] = steps[step_idx + 1], steps[step_idx]
+                self.item_list.selected_index += 1
+            elif idx == num_steps:  # on last step -> move to cancel (clamped, no wrap)
+                self.item_list.selected_index = num_steps + 1
+            # on cancel or name: do nothing
+        else:
+            self.item_list.select_next()
+
+    def both_long_press(self):
+        idx = self.item_list.selected_index
+        num_steps = len(self.recipe.steps)
+        if self.move_mode:
+            self.move_mode = False
+        elif 1 <= idx <= num_steps:
+            self.move_mode = True
 
     def right_long_press(self):
-        # save
+        if self.move_mode:
-        if self.is_add_form:
+            return
-            self.recipe_manager.add_recipe(self.recipe)
+        idx = self.item_list.selected_index
+        num_steps = len(self.recipe.steps)
+        if idx == num_steps + 2:
+            # save item
+            if self.is_add_form:
+                self.recipe_manager.add_recipe(self.recipe)
+            else:
+                self.recipe_manager.update_recipe(self.recipe_id, self.recipe)
+            self.deactivate_command()
+        elif idx == num_steps + 1:
+            # add step
+            new_step = Step(StepType.SECTION, "")
+            self.recipe.steps.append(new_step)
+            self.edit_step_command(self.recipe_id, num_steps + 1)
         else:
-            self.recipe_manager.update_recipe(self.recipe_id, self.recipe)
+            # edit name (idx=0) or step (idx=1+)
-        # if view is in edit mode, the recipe is already updated (by reference)
+            self.edit_step_command(self.recipe_id, idx)
-        self.deactivate_command()
 
     def has_button(self) -> Tuple[bool, bool, bool, bool]:
         return True, True, True, True
 
-
     def render_left_press(self, draw, x, y):
         draw.regular_polygon((x, y+2, 5), 3, fill='black')
 
     def render_left_long_press(self, draw, x, y):
-        draw.text((x, y-5), 'Enter', fill='black')
+        if self.move_mode:
+            draw.text((x, y-5), 'Cancel', fill='black')
+        else:
+            draw.text((x, y-5), 'Back', fill='black')
 
     def render_right_press(self, draw, x, y):
         draw.regular_polygon((x, y+4, 5), 3, fill='black', rotation=180)
 
     def render_right_long_press(self, draw, x, y):
-        draw.text((x - 20, y-5), 'Save', fill='black')
+        if self.move_mode:
+            return
+        idx = self.item_list.selected_index
+        num_steps = len(self.recipe.steps)
+        if idx == num_steps + 2:
+            draw.text((x - 20, y-5), 'Save', fill='black')
+        elif idx == num_steps + 1:
+            draw.text((x - 15, y-5), 'Add', fill='black')
+        else:
+            draw.text((x - 15, y-5), 'Edit', fill='black')
+
+    def render_both_long_press(self, draw, x, y):
+        idx = self.item_list.selected_index
+        num_steps = len(self.recipe.steps)
+        if self.move_mode:
+            draw.text((x - 15, y - 5), 'Confirm', fill='black')
+        elif 1 <= idx <= num_steps:
+            draw.text((x - 10, y - 5), 'Move', fill='black')

frontend/views/recipes/edit_step.py

@@ -6,11 +6,51 @@ from MorseCodePy import decode
 
 from ..base import View
 from ..button_interface import ButtonInterface
+from ..list_select import ListItem, ListView
 
 from .recipe_manager import RecipeManager
 from .recipe import Recipe, Step, StepType
 
+# Step types that accept a typed value
+_TYPES_WITH_VALUE = {StepType.SECTION, StepType.WEIGH, StepType.WEIGH_WITH_TIMER}
+# Step types whose value is numeric (use numbers language for morse)
+_NUMERIC_TYPES = {StepType.WEIGH, StepType.WEIGH_WITH_TIMER}
+
+
+def _make_type_item(step_type: StepType) -> ListItem:
+    """ListItem showing a StepType icon + name."""
+    def render(draw, pos, fill, **kw):
+        step_type.render(draw, pos, fill=fill)
+        draw.text((pos[0] + 30, pos[1]), step_type.name, fill=fill, **kw)
+    return ListItem(render)
+
+
+def _make_delete_item() -> ListItem:
+    """ListItem that renders as a delete/trash label."""
+    return ListItem(
+        lambda draw, pos, fill, **kw: draw.text(pos, 'Delete', fill=fill, **kw)
+    )
+
+
 class EditStep(View, ButtonInterface):
+    """Edit a single recipe step (or the recipe name).
+
+    Flow for name editing (step_index == 0):
+        - Go straight to morse value entry.
+
+    Flow for step editing (step_index >= 1):
+        Phase 0 - select step type via ListView.
+            left_press       : navigate up
+            right_press      : navigate down
+            left_long_press  : confirm type -> advance to phase 1, or save
+                               immediately if the type carries no value
+        Phase 1 - enter value via morse.
+            left_press       : cancel
+            left_long_press  : save and exit
+            right_press      : morse dot  '.'
+            right_long_press : morse dash '-'
+    """
+
     def __init__(self, parent, im_size, center,
                  recipe_id: int,
                  step_index: int,
@@ -20,133 +60,260 @@ class EditStep(View, ButtonInterface):
         self.recipe_manager = recipe_manager
         self.recipe_id = recipe_id
         self.step_index = step_index
-        if step_index == 0:
-            self.step = recipe_manager.get_recipe(recipe_id).name
 
-        self.confirm_view = False
+        recipe = recipe_manager.get_recipe(recipe_id)
-        self.edit_step = 0  # 0: type, 1: step/name value
+        if step_index == 0:
-        self.new_type = ''
+            self.step = recipe.name          # str -> name editing
+        else:
+            self.step = recipe.steps[step_index - 1]  # Step
+
+        # edit_step: 0 = type selection  |  1 = value entry  |  2 = goal time entry
+        # Name editing starts directly in phase 1.
+        self.edit_step = 1 if step_index == 0 else 0
+
+        # Type selection list (used only when editing a Step)
+        self.type_list = ListView(x_offset=40, max_visible=5)
+        self.type_list.items = [_make_type_item(t) for t in StepType] + [_make_delete_item()]
+        if isinstance(self.step, Step):
+            all_types = list(StepType)
+            self.type_list.selected_index = all_types.index(self.step.step_type)
+            self.new_type = self.step.step_type
+        else:
+            self.new_type = None
+
         self.new_value = ''
+        self.new_goal_time = ''
         self.value_cursor = 0
         self.value_cursor_pulse = 0.0
         self.morse_buffer = ''
-        self.morse_code_language = 'english'
+        self.morse_code_language = self._morse_language_for(self.new_type)
-        if isinstance(self.step, Step) and \
-           self.step.step_type in [StepType.START_TIME, StepType.WEIGH]:
-            self.morse_code_language = 'numbers'
 
         self.last_input = None
         self.letter_timeout = 2.0  # seconds
 
         super().__init__(parent, im_size, center)
 
-    def update_weight(self, weight: float) -> Image.Image:
+    # ------------------------------------------------------------------
-        im = self.bkg_im.copy()
+    # helpers
-        draw = ImageDraw.Draw(im)
+    # ------------------------------------------------------------------
 
-        x = 40
+    @staticmethod
+    def _morse_language_for(step_type) -> str:
+        return 'numbers' if step_type in _NUMERIC_TYPES else 'english'
 
+    def _process_morse_timeout(self):
+        """Decode pending morse buffer after the letter timeout."""
         if self.last_input is not None:
             if time() - self.last_input > self.letter_timeout:
-                if len(self.morse_buffer) < 10:
+                if self.edit_step == 2:
-                    self.value_cursor += 1
+                    if len(self.morse_buffer) < 10:
-                    self.new_value += decode(self.morse_buffer, language=self.morse_code_language).upper()
+                        decoded = decode(self.morse_buffer, language=self.morse_code_language)
+                        self.new_goal_time += decoded.upper()
+                        self.value_cursor += 1
+                    else:
+                        self.new_goal_time = self.new_goal_time[:-1]
+                        self.value_cursor = max(0, self.value_cursor - 1)
                 else:
-                    self.value_cursor -= 1
+                    if len(self.morse_buffer) < 10:
-                    self.value_cursor = max(0, self.value_cursor)
+                        decoded = decode(self.morse_buffer, language=self.morse_code_language)
-                    self.new_value = self.new_value[:-1]
+                        self.new_value += decoded.upper()
-                # process morse buffer
+                        self.value_cursor += 1
+                    else:
+                        self.new_value = self.new_value[:-1]
+                        self.value_cursor = max(0, self.value_cursor - 1)
                 self.last_input = None
                 self.morse_buffer = ''
 
+    def _render_value_entry(self, draw: ImageDraw.ImageDraw, x: int):
+        """Render the morse value-entry screen."""
+        font_size = 16
+        y_start = 30
+
         if isinstance(self.step, str):
-            font_size = 16
+            label = "Name:"
-            y_start = 30
+        elif self.edit_step == 2:
-            draw.text((x, y_start), "Name:", fill='black')
+            label = "Goal time(s):"
-            draw.text((x, y_start + 20), self.new_value, fill='black', font_size=font_size)
-            if self.value_cursor_pulse > 1.0:
-                draw.rectangle((x + self.value_cursor * 10,
-                                y_start + 20 - 2,
-                                x + self.value_cursor * 10 + 8,
-                                y_start + 34),
-                                fill='black')
-            if self.value_cursor_pulse > 2.0:
-                self.value_cursor_pulse = 0.0
-            self.value_cursor_pulse += 0.1
-
-            draw.line((x, y_start + 37, x + 80, y_start + 37), fill='black')
-
-            if self.morse_buffer != '':
-                for i, suffix in enumerate(['']):#, '.', '-', '.' * 10]):
-                    letter = 'del'
-                    if len(suffix) != 10 and len(self.morse_buffer) + len(suffix) < 10:
-                        letter = decode(self.morse_buffer + suffix, language=self.morse_code_language)
-                    draw.text((x, y_start + 50 + i * 15),
-                            f'{self.morse_buffer + suffix} {letter}',
-                            fill='black', font_size=14)
-        elif self.edit_step == 0:
-            pass
         else:
-            pass
+            label = f"{self.new_type.name}:"
+        draw.text((x, y_start), label, fill='black')
 
-        # visual_steps, start = self._get_visual_steps()
+        current_value = self.new_goal_time if self.edit_step == 2 else self.new_value
+        draw.text((x, y_start + 20), current_value, fill='black', font_size=font_size)
 
-        # for idx, step in enumerate(visual_steps):
+        if self.value_cursor_pulse > 1.0:
-        #     y_pos = 60 + idx * 20
+            draw.rectangle(
-        #     if start + idx + 1 == self.selected_field:
+                (x + self.value_cursor * 10,     y_start + 18,
-        #         r = 10
+                 x + self.value_cursor * 10 + 8, y_start + 34),
-        #         offset = 15
+                fill='black'
-        #         for i in range(0, 90, r // 2):
+            )
-        #             draw.circle((x + i, y_pos), r, fill='black')
+        self.value_cursor_pulse += 0.1
+        if self.value_cursor_pulse > 2.0:
+            self.value_cursor_pulse = 0.0
 
+        draw.line((x, y_start + 37, x + 80, y_start + 37), fill='black')
 
-        #         if str(step) == '+':
+        if self.morse_buffer:
-        #             draw.text((x, y_pos - 5), '+', fill='white')
+            letter = decode(self.morse_buffer, language=self.morse_code_language) \
-        #         elif str(step) == 'BACK':
+                     if len(self.morse_buffer) < 10 else 'del'
-        #             draw.regular_polygon((x + 5, y_pos, 5), 3, fill='white', rotation=90)
+            draw.text((x, y_start + 50), f'{self.morse_buffer} -> {letter}',
-        #         else:
+                      fill='black', font_size=14)
-        #             step.step_type.render(draw, (x, y_pos - 5), fill='white')
-        #             draw.text((x + 30, y_pos - 5), step.value_str, fill='white')
 
-        #     elif str(step) == '+':
+    def _render_type_selection(self, draw: ImageDraw.ImageDraw, x: int):
-        #         draw.text((x, y_pos - 5), '+', fill='black')
+        """Render the step-type selection screen."""
-        #     elif str(step) == 'BACK':
+        draw.text((x, 10), "Step type:", fill='black')
-        #             draw.regular_polygon((x + 5, y_pos, 5), 3, fill='black', rotation=90)
+        self.type_list.render(draw, y_start=30)
-        #     else:
+
-        #         step.step_type.render(draw, (x, y_pos - 5), fill='black')
+    # ------------------------------------------------------------------
-        #         draw.text((x + 30, y_pos - 5), step.value_str, fill='black')
+    # View
+    # ------------------------------------------------------------------
+
+    def update_weight(self, weight: float) -> Image.Image:
+        im = self.bkg_im.copy()
+        draw = ImageDraw.Draw(im)
+        x = 40
+
+        if isinstance(self.step, str) or self.edit_step >= 1:
+            self._process_morse_timeout()
+            self._render_value_entry(draw, x)
+        else:
+            self._render_type_selection(draw, x)
 
         return im
 
+    # ------------------------------------------------------------------
+    # ButtonInterface
+    # ------------------------------------------------------------------
+
     def left_press(self):
-        self.deactivate_command()
+        if isinstance(self.step, str) or self.edit_step >= 1:
+            self.deactivate_command()
+        else:
+            self.type_list.select_previous()
 
     def left_long_press(self):
-        if self.step_index == 0:
+        if isinstance(self.step, str):
-            # editing name
             if self.new_value:
                 recipe = self.recipe_manager.get_recipe(self.recipe_id)
                 recipe.name = self.new_value
             self.deactivate_command()
+
+        elif self.edit_step == 0:
+            # always go back from type selection
+            self.deactivate_command()
+
+        elif self.edit_step == 1 and self.new_type == StepType.WEIGH_WITH_TIMER:
+            # Save weight value and advance to goal time entry
+            raw = self.new_value
+            if raw:
+                try:
+                    self._saved_weight = int(raw)
+                except ValueError:
+                    self._saved_weight = None
+            else:
+                self._saved_weight = None
+            self.edit_step = 2
+            self.morse_code_language = 'numbers'
+            self.new_goal_time = ''
+            self.value_cursor = 0
+            self.morse_buffer = ''
+            self.last_input = None
+
         else:
-            pass
+            if self.edit_step == 2:
+                raw_goal = self.new_goal_time
+                try:
+                    goal_time = float(raw_goal) if raw_goal else 0.0
+                except ValueError:
+                    goal_time = 0.0
+                value = self._saved_weight
+            else:
+                raw = self.new_value
+                if raw and self.new_type in _NUMERIC_TYPES:
+                    try:
+                        value = int(raw)
+                    except ValueError:
+                        value = None
+                elif raw:
+                    value = raw
+                else:
+                    value = None
+                goal_time = 0.0
+
+            recipe = self.recipe_manager.get_recipe(self.recipe_id)
+            step = recipe.steps[self.step_index - 1]
+            step.step_type = self.new_type
+            step.value = value
+            step.goal_time = goal_time
+            self.deactivate_command()
 
     def right_press(self):
-        self.last_input = time()
+        if isinstance(self.step, str) or self.edit_step >= 1:
-        self.morse_buffer += '.'
+            self.last_input = time()
+            self.morse_buffer += '.'
+        else:
+            self.type_list.select_next()
 
     def right_long_press(self):
-        self.last_input = time()
+        if isinstance(self.step, str) or self.edit_step >= 1:
-        self.morse_buffer += '-'
+            self.last_input = time()
+            self.morse_buffer += '-'
+        elif self.edit_step == 0:
+            all_types = list(StepType)
+            if self.type_list.selected_index == len(all_types):
+                # delete item selected
+                recipe = self.recipe_manager.get_recipe(self.recipe_id)
+                del recipe.steps[self.step_index - 1]
+                self.deactivate_command()
+                return
+            self.new_type = all_types[self.type_list.selected_index]
+            if self.new_type not in _TYPES_WITH_VALUE:
+                # No value needed -> save immediately
+                recipe = self.recipe_manager.get_recipe(self.recipe_id)
+                recipe.steps[self.step_index - 1].step_type = self.new_type
+                recipe.steps[self.step_index - 1].value = None
+                self.deactivate_command()
+            else:
+                # Advance to value entry
+                self.morse_code_language = self._morse_language_for(self.new_type)
+                self.new_value = ''
+                self.value_cursor = 0
+                self.morse_buffer = ''
+                self.last_input = None
+                self.edit_step = 1
 
     def has_button(self) -> Tuple[bool, bool, bool, bool]:
-        return True, True, True, False 
+        return True, True, True, True
+
+    # ------------------------------------------------------------------
+    # Button hint rendering
+    # ------------------------------------------------------------------
 
     def render_left_press(self, draw, x, y):
-        draw.text((x, y-5), 'Cancel', fill='black')
+        if isinstance(self.step, str) or self.edit_step >= 1:
+            draw.text((x, y - 5), 'Cancel', fill='black')
+        else:
+            draw.regular_polygon((x, y + 2, 5), 3, fill='black')
 
     def render_left_long_press(self, draw, x, y):
-        draw.text((x, y-5), 'Next', fill='black')
+        if self.edit_step == 0 and not isinstance(self.step, str):
+            draw.text((x, y - 5), 'Back', fill='black')
+        elif self.edit_step == 1 and self.new_type == StepType.WEIGH_WITH_TIMER:
+            draw.text((x, y - 5), 'Next', fill='black')
+        else:
+            draw.text((x, y - 5), 'Save', fill='black')
 
     def render_right_press(self, draw, x, y):
-        draw.text((x - 30, y), 'Morse', fill='black')
+        if isinstance(self.step, str) or self.edit_step >= 1:
+            draw.text((x - 5, y - 5), '.', fill='black')
+        else:
+            draw.regular_polygon((x, y + 4, 5), 3, fill='black', rotation=180)
+
+    def render_right_long_press(self, draw, x, y):
+        if isinstance(self.step, str) or self.edit_step >= 1:
+            draw.text((x - 5, y - 5), '-', fill='black')
+        elif self.edit_step == 0:
+            all_types = list(StepType)
+            if self.type_list.selected_index == len(all_types):
+                draw.text((x - 20, y - 5), 'Delete', fill='black')
+            else:
+                draw.text((x - 20, y - 5), 'Select', fill='black')

frontend/views/recipes/recipe.py

@@ -8,7 +8,7 @@ from ..draw_utils import draw_clock
 class Recipe:
     def __init__(self, name: str, steps: list[Step]):
         self.name = name
-        self.steps = steps + [Step(StepType.SECTION, "Enjoy")]
+        self.steps = steps
     
     def __str__(self):
         return self.name
@@ -19,48 +19,50 @@ class Recipe:
 class StepType(Enum):
     SECTION = 0
     WEIGH = 1
-    START_TIME = 2
+    WEIGH_WITH_TIMER = 2
-    WAIT_TIME_FINISHED = 3
+    TARE = 3
-    TARE = 4
 
-    def render(self, draw, position, fill='black') -> str:
+    def render(self, draw, position, fill='black', **kwargs) -> str:
+        font_size = kwargs.get('font_size', 10)
         if self == StepType.SECTION:
-            draw.text(position, "T", fill=fill)
+            draw.text(position, "T", fill=fill, **kwargs)
         elif self == StepType.WEIGH:
-            draw.text(position, "W", fill=fill)
+            draw.text(position, "W", fill=fill, **kwargs)
-        elif self == StepType.START_TIME or self == StepType.WAIT_TIME_FINISHED:
+        elif self == StepType.WEIGH_WITH_TIMER:
-            draw_clock(draw, (position[0] + 3, position[1] + 5), radius=3, color=fill)
+            draw.text(position, "W", fill=fill, **kwargs)
+            r = max(3, font_size // 4)
+            draw_clock(draw, (position[0] + font_size + 2, position[1] + font_size // 2), radius=r, color=fill)
         elif self == StepType.TARE:
-            draw.text(position, "0.0g", fill=fill)
+            draw.text(position, "0.0g", fill=fill, **kwargs)
 
 class Step:
 
     def __init__(self,
                  step_type: StepType,
-                 value: float | str = None):
+                 value: float | str = None,
+                 goal_time: float = 0.0):
         self.step_type = step_type
         self.value = value
+        self.goal_time = goal_time
     
     @property
     def value_str(self) -> str:
-        if self.step_type in [StepType.WEIGH]:
+        if self.step_type == StepType.WEIGH:
             return f"{self.value}g"
-        elif self.step_type == StepType.START_TIME:
+        elif self.step_type == StepType.WEIGH_WITH_TIMER:
-            if self.value == -1:
+            s = f"{self.value}g"
-                return "Start"
+            if self.goal_time > 0:
-            else:
+                minutes = int(self.goal_time) // 60
-                minutes = self.value // 60
+                seconds = int(self.goal_time) % 60
-                seconds = self.value % 60
                 if minutes == 0:
-                    return f"{seconds}s"
+                    s += f" {seconds}s"
                 else:
-                    return f"{minutes}:{seconds:02d}"
+                    s += f" {minutes}:{seconds:02d}"
+            return s
         elif self.step_type == StepType.SECTION:
             return str(self.value)
         elif self.step_type == StepType.TARE:
             return "Tare"
-        elif self.step_type == StepType.WAIT_TIME_FINISHED:
-            return "Wait"
         else:
             return ""
 
@@ -75,10 +77,7 @@ V60 = Recipe(
 
         Step(StepType.SECTION, "Brew"),
         Step(StepType.TARE),
-        Step(StepType.START_TIME, 45),
+        Step(StepType.WEIGH_WITH_TIMER, 50, goal_time=45),
-        Step(StepType.WEIGH, 50),
-        Step(StepType.WAIT_TIME_FINISHED),
-        Step(StepType.START_TIME, -1),
         Step(StepType.WEIGH, 250),
     ]
 )
@@ -92,7 +91,6 @@ ESPRESSO = Recipe(
 
         Step(StepType.SECTION, "Brew"),
         Step(StepType.TARE),
-        Step(StepType.START_TIME, -1),
+        Step(StepType.WEIGH_WITH_TIMER, 40, goal_time=0.0),
-        Step(StepType.WEIGH, 40),
     ]
 )

frontend/views/recipes/recipe_manager.py

@@ -1,4 +1,5 @@
-from .recipe import V60, ESPRESSO, Recipe
+from typing import List
+from .recipe import V60, ESPRESSO, Recipe, Step, StepType
 
 class RecipeManager:
     def __init__(self):
@@ -7,6 +8,8 @@ class RecipeManager:
             ESPRESSO
         ]
         self.tmp_recipe = None
+        self.active_recipe: Recipe = None
+        self.current_recipe_step_id = 0
     
     def add_recipe(self, recipe):
         self.recipes.append(recipe)
@@ -21,6 +24,46 @@ class RecipeManager:
         return self.recipes.index(recipe)
     
     def get_recipe(self, recipe_id) -> Recipe:
-        if recipe_id == None:
+        if recipe_id is None:
             return self.tmp_recipe
         return self.recipes[recipe_id]
+
+
+
+    def activate_recipe(self, recipe_id):
+        self.active_recipe = self.get_recipe(recipe_id)
+    
+    def deactivate_recipe(self):
+        self.active_recipe = None
+        self.current_recipe_step_id = 0
+    
+    def get_current_step(self) -> List[Step]:
+        steps = [None] * 3
+        if self.active_recipe is None:
+            return steps
+        if self.current_recipe_step_id > len(self.active_recipe.steps):
+            return steps
+        
+        if self.current_recipe_step_id > 0:
+            steps[0] = self.active_recipe.steps[self.current_recipe_step_id - 1]
+        if self.current_recipe_step_id < len(self.active_recipe.steps):
+            steps[1] = self.active_recipe.steps[self.current_recipe_step_id]
+        elif self.current_recipe_step_id == len(self.active_recipe.steps):
+            steps[1] = Step(StepType.SECTION, "Enjoy")
+        if self.current_recipe_step_id < len(self.active_recipe.steps) - 1:
+            steps[2] = self.active_recipe.steps[self.current_recipe_step_id + 1]
+        return steps
+    
+    def next_step(self) -> List[Step]:
+        if self.active_recipe is None:
+            return [None] * 3
+        self.current_recipe_step_id = min(self.current_recipe_step_id + 1, len(self.active_recipe.steps) + 1)
+        
+        return self.get_current_step()
+    
+    def previous_step(self) -> List[Step]:
+        if self.active_recipe is None:
+            return [None] * 3
+        self.current_recipe_step_id = max(0, self.current_recipe_step_id - 1)
+        
+        return self.get_current_step()

frontend/views/recipes/recipe_selection.py

@@ -2,12 +2,18 @@ from typing import Tuple
 
 from ..base import View
 from ..button_interface import ButtonInterface
+from ..list_select import ListItem, ListView, CarouselView
 
 from .recipe_manager import RecipeManager
-from .recipe import V60, ESPRESSO
 
 from PIL import ImageDraw, Image
 
+
+def _make_text_item(text):
+    """ListItem that renders as plain text (forwards kwargs such as font_size)."""
+    return ListItem(lambda draw, pos, fill, t=text, **kw: draw.text(pos, str(t), fill=fill, **kw))
+
+
 class RecipeSelection(View, ButtonInterface):
 
     @property
@@ -17,70 +23,56 @@ class RecipeSelection(View, ButtonInterface):
     def __init__(self, parent, im_size, center,
                  recipe_manager: RecipeManager = None,
                  edit_recipe_command=None,
+                 run_recipe_command=None,
                  deactivate_command=None):
-        self.selected_index = 0
         self.deactivate_command = deactivate_command
         self.recipe_manager = recipe_manager
         self.edit_recipe_command = edit_recipe_command
+        self.run_recipe_command = run_recipe_command
+        self.item_list = CarouselView(render_height=124)
+        # self.item_list = ListView(x_offset=40, max_visible=5)
+        self._rebuild_items()
         super().__init__(parent, im_size, center)
 
-    def _get_visual_recipes(self):
+    def _rebuild_items(self):
-        recipes = self.recipes + ['+', 'BACK']
+        """Rebuild list items from current recipes."""
-        if len(recipes) < 5:
+        old_index = self.item_list.selected_index
-            return recipes, 0
+        items = [_make_text_item(r) for r in self.recipes]
-        
+        items.append(_make_text_item('+'))
-        start = max(0, self.selected_index - 2)
+        self.item_list.items = items
-        end = min(len(recipes), start + 5)
+        self.item_list.selected_index = min(old_index, len(items) - 1)
-
-        recipes = recipes[start:end]
-
-        return recipes, start
 
     def update_weight(self, weight: float) -> Image.Image:
         im = self.bkg_im.copy()
         draw = ImageDraw.Draw(im)
-
+        self._rebuild_items()
-        recipes, start = self._get_visual_recipes()
+        self.item_list.render(draw, y_start=10)
-        for idx, recipe in enumerate(recipes):
-            if idx + start == self.selected_index:
-                r = 10
-                offset = 15
-                for i in range(0, 90, r // 2):
-                    draw.circle((40 + i, offset + idx * 20), r, fill='black')
-                if str(recipe) != 'BACK':
-                    draw.text((40, 10 + idx * 20), str(recipe), fill='white')
-                else:
-                    draw.regular_polygon((40 + 5, 15 + idx * 20, 5), 3, fill='white', rotation=90)
-            elif str(recipe) == 'BACK':
-                    draw.regular_polygon((40 + 5, 15 + idx * 20, 5), 3, fill='black', rotation=90)
-            else:
-                draw.text((40, 10 + idx * 20), str(recipe), fill='black')
-
-        
         return im
 
     def left_press(self):
-        self.selected_index = (self.selected_index - 1) % (len(self.recipes) + 2)
+        self.item_list.select_previous()
 
     def left_long_press(self):
-        if self.selected_index < len(self.recipes):
+        self.item_list.selected_index = 0
-            self.edit_recipe_command(self.selected_index)
+        self.deactivate_command()
 
     def right_press(self):
-        self.selected_index = (self.selected_index + 1) % (len(self.recipes) + 2)
+        self.item_list.select_next()
 
     def right_long_press(self):
-        if self.selected_index < len(self.recipes):
+        idx = self.item_list.selected_index
-            # activate selected recipe
+        if idx < len(self.recipes):
-            print(f"Activating recipe: {self.recipes[self.selected_index]}")
+            # run selected recipe
-        elif self.selected_index == len(self.recipes):
+            if self.run_recipe_command:
+                self.run_recipe_command(idx)
+        elif idx == len(self.recipes):
             # add new recipe
             self.edit_recipe_command()
-        else:
-            # back
-            self.selected_index = 0
-            self.deactivate_command()
 
+    def both_long_press(self):
+        idx = self.item_list.selected_index
+        if idx < len(self.recipes):
+            self.edit_recipe_command(idx)
 
     def has_button(self) -> Tuple[bool, bool, bool, bool]:
         return True, True, True, True
@@ -89,10 +81,19 @@ class RecipeSelection(View, ButtonInterface):
         draw.regular_polygon((x, y+2, 5), 3, fill='black')
 
     def render_left_long_press(self, draw, x, y):
-        draw.text((x, y-5), 'Edit', fill='black')
+        draw.text((x, y-5), 'Back', fill='black')
 
     def render_right_press(self, draw, x, y):
         draw.regular_polygon((x, y+4, 5), 3, fill='black', rotation=180)
 
     def render_right_long_press(self, draw, x, y):
-        draw.regular_polygon((x+2, y, 5), 3, fill='black', rotation=270)
+        idx = self.item_list.selected_index
+        if idx < len(self.recipes):
+            draw.text((x - 15, y-5), 'Run', fill='black')
+        else:
+            draw.text((x - 15, y-5), 'Add', fill='black')
+
+    def render_both_long_press(self, draw, x, y):
+        idx = self.item_list.selected_index
+        if idx < len(self.recipes):
+            draw.text((x - 10, y - 5), 'Edit', fill='black')

frontend/views/text.py

@@ -0,0 +1,31 @@
+from PIL import ImageDraw
+
+from .base import View
+
+
+class TextView(View):
+    def __init__(self, parent, size, center, text="", font_size=32, **kwargs):
+        self.text = text
+        self.font_size = font_size
+        super().__init__(parent, size, center, **kwargs)
+
+    def set_text(self, text):
+        self.text = text
+
+    def update_weight(self, weight):
+        im = self.bkg_im.copy()
+        draw = ImageDraw.Draw(im)
+
+        if self.text:
+            # Estimate text dimensions for centering
+            char_w = self.font_size * 0.6
+            char_h = self.font_size
+            text_w = len(self.text) * char_w
+            text_h = char_h
+
+            x = self.center[0] - text_w / 2
+            y = self.center[1] - text_h / 2
+
+            draw.text((x, y), self.text, fill="black", font_size=self.font_size)
+
+        return im

frontend/views/timer.py

@@ -6,11 +6,22 @@ import time
 from .base import View
 
 class TimerView(View):
+    @property
+    def goal_secs(self):
+        try:
+            return float(self.goal_entry.get())
+        except ValueError:
+            return 0.0
+    
+    @goal_secs.setter
+    def goal_secs(self, value):
+        self.goal_entry.delete(0, tk.END)
+        self.goal_entry.insert(0, str(value))
+
     def __init__(self, parent, size, center, width=3, **kwargs):
         self.start_time = None
         self.elapsed_time = 0
         self.is_running = False
-        self.goal_minutes = 0  # 0 means no goal set
         self.radius = min(center) - 7
         self.width = width
         self.goal_achived = 0
@@ -79,9 +90,8 @@ class TimerView(View):
         
         # Draw progress circle if goal is set
         try:
-            goal_sec = float(self.goal_entry.get())
+            if self.goal_secs > 0:
-            if goal_sec > 0:
+                progress = current_time / self.goal_secs
-                progress = current_time / goal_sec
             else:
                 progress = current_time / 60
 
@@ -89,7 +99,7 @@ class TimerView(View):
                 inverted = int(progress) % 2 == 1
 
                 # pulse width if goal achieved
-                if int(progress) > 0 and self.is_running:
+                if self.goal_secs > 0 and int(progress) > 0 and self.is_running:
                     self.goal_achived = (self.goal_achived + self.goal_pulse_freq) % 3
                 else:
                     self.goal_achived = 0