296 lines
12 KiB
Python
296 lines
12 KiB
Python
import io
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import tkinter as tk
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from tkinter import Frame, Canvas, ttk, PhotoImage
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from PIL import ImageChops
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from ..config import DISPLAY_TYPES, DISPLAY_MODES
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from .draw_utils import draw_clock
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from . import NumberView, CircleView, TimerView, TextView
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from .button_interface import ButtonInterface
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from .buttons_manager import ButtonsManager
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from .recipes import RecipeSelection, RecipeManager, EditRecipe, EditStep, StepType, Step
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class MainView(tk.Frame, ButtonInterface):
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def __init__(self, parent,
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tare_command=None,
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calibrate_command=None,
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**kwargs):
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super().__init__(parent, **kwargs)
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self.curr_mode = DISPLAY_MODES.MAIN
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self.views = []
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self.timer_view = None # Timer view is always active
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self.tare_command = tare_command
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self.calibrate_command = calibrate_command
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self.actions = Frame(self)
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self.actions.pack()
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self.calibrate_button = ttk.Button(self.actions, text="Calibrate", command=calibrate_command)
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self.calibrate_button.pack()
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self.im_size = (168, 144)
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self.center = (168 // 2, 144 // 2)
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# Create timer view that's always active
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self.canvas = Canvas(self, width=168, height=144, background='white',
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highlightthickness=1, highlightbackground="black")
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self.canvas.pack()
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self.timer_view = TimerView(self.actions, self.im_size, self.center)
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self.weigh_view = None # Initialize weigh_view to None; will be created if CIRCLE display type is selected
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self.text_view = TextView(self.actions, self.im_size, self.center)
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self.buttons = ButtonsManager(self, self.im_size, self.center,
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curr_view=self)
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self.recipes_manager = RecipeManager()
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self.current_steps = [None] * 3
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self.tare_buffer = []
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self.timer_buffer = []
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self.weigh_target_buffer = []
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def has_button(self):
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return True, True, True, True
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def left_press(self):
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if self.curr_mode == DISPLAY_MODES.MAIN:
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self.timer_view.toggle_timer()
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elif self.curr_mode == DISPLAY_MODES.DO_RECIPE:
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self.previous_recipe_step()
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def left_long_press(self):
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if self.curr_mode == DISPLAY_MODES.MAIN:
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self.timer_view.reset_timer()
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elif self.curr_mode == DISPLAY_MODES.DO_RECIPE:
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self.exit_recipe()
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def right_press(self):
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if self.curr_mode == DISPLAY_MODES.MAIN:
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self.tare_command()
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elif self.curr_mode == DISPLAY_MODES.DO_RECIPE:
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self.next_recipe_step()
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def right_long_press(self):
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if self.curr_mode == DISPLAY_MODES.DO_RECIPE:
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return
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self.enter_recipe_selection()
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def render_left_press(self, draw, x, y):
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if self.curr_mode == DISPLAY_MODES.MAIN:
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draw_clock(draw, (x, y), radius=3)
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elif self.curr_mode == DISPLAY_MODES.DO_RECIPE:
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if self.current_steps[0] is not None:
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draw.regular_polygon((x, y, 5), 3, fill='black', rotation=210)
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draw.text((x + 6, y - 5), self.current_steps[0].value_str, fill='black')
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def render_left_long_press(self, draw, x, y):
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if self.curr_mode == DISPLAY_MODES.MAIN:
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draw_clock(draw, (x, y), radius=3)
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draw.text((x + 6, y - 5), "0.0", fill='black')
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elif self.curr_mode == DISPLAY_MODES.DO_RECIPE:
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draw.text((x, y - 5), "Exit", fill='black')
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def render_right_press(self, draw, x, y):
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if self.curr_mode == DISPLAY_MODES.MAIN:
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draw.text((x, y), "T", fill='black')
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elif self.curr_mode == DISPLAY_MODES.DO_RECIPE:
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if self.current_steps[2] is not None:
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draw.regular_polygon((x, y+5, 5), 3, fill='black', rotation=30)
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value = self.current_steps[2].value_str
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draw.text((x - 6 * len(value) - 5, y), value, fill='black')
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else:
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draw.text((x - 24, y), "Done", fill='black')
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def render_right_long_press(self, draw, x, y):
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if self.curr_mode == DISPLAY_MODES.MAIN:
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draw.text((x, y - 5), "R", fill='black')
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def enter_main_mode(self):
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self.curr_mode = DISPLAY_MODES.MAIN
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self.buttons.current_view = self
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self.refresh(0.0)
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def enter_recipe_selection(self):
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self.curr_mode = DISPLAY_MODES.RECIPE_SELECTION
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self.buttons.current_view = RecipeSelection(self,
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self.im_size, self.center,
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recipe_manager=self.recipes_manager,
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edit_recipe_command=self.enter_edit_recipe,
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run_recipe_command=self.enter_do_recipe,
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deactivate_command=self.enter_main_mode)
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self.refresh(0.0)
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def enter_do_recipe(self, recipe_id: int):
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self.curr_mode = DISPLAY_MODES.DO_RECIPE
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self.timer_view.reset_timer() # Reset timer at start of recipe
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self.recipes_manager.activate_recipe(recipe_id)
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self.current_steps = self.recipes_manager.get_current_step()
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self.buttons.current_view = self
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self.refresh(0.0)
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def enter_edit_recipe(self, recipe_id: int = None):
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self.curr_mode = DISPLAY_MODES.EDIT_RECIPE
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self.buttons.current_view = EditRecipe(self,
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self.im_size, self.center,
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recipe_id=recipe_id,
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recipe_manager=self.recipes_manager,
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edit_step_command=self.enter_edit_step,
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deactivate_command=self.enter_recipe_selection)
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self.refresh(0.0)
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def enter_edit_step(self, recipe_id: int, step_idx: int):
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self.curr_mode = DISPLAY_MODES.EDIT_STEP
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self.buttons.current_view = EditStep(self,
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self.im_size, self.center,
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recipe_id=recipe_id,
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step_index=step_idx,
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recipe_manager=self.recipes_manager,
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deactivate_command=lambda: self.enter_edit_recipe(recipe_id))
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self.refresh(0.0)
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##### Recipe navigation in DO_RECIPE mode #####
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def next_recipe_step(self):
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self.current_steps = self.recipes_manager.next_step()
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if self.current_steps[1] is None:
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self.exit_recipe()
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return
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self.do_recipe_step(self.current_steps[1])
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self.refresh(0.0)
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def previous_recipe_step(self):
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self.current_steps = self.recipes_manager.previous_step()
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self.do_recipe_step(self.current_steps[1], reverse=True)
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self.refresh(0.0)
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def exit_recipe(self):
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self.recipes_manager.deactivate_recipe()
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self.timer_view.reset_timer()
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self.weigh_view.target = 0.0
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self.weigh_target_buffer.clear()
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self.timer_buffer.clear()
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self.tare_buffer.clear()
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self.enter_main_mode()
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def do_recipe_step(self, step: Step, reverse=False):
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if step is None:
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return
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last_step = self.current_steps[0]
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if last_step is not None and last_step.step_type == StepType.WEIGH_WITH_TIMER and not reverse:
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self.timer_view.goal_secs = 0.0
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elif last_step is not None and last_step.step_type == StepType.SECTION and not reverse:
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self.weigh_view.target = 0.0
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self.timer_view.goal_secs = 0.0
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if step.step_type == StepType.TARE:
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if not reverse:
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tare_weight = self.tare_command()
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self.tare_buffer.append(tare_weight) # buffer last tare weight in case we need to revert
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elif self.tare_buffer:
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tare_weight = self.tare_buffer.pop()
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self.tare_command(tare_weight)
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else:
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raise ValueError("Tare buffer is empty, cannot revert tare step")
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elif step.step_type == StepType.WEIGH:
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if not reverse:
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self.weigh_view.target = step.value
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self.weigh_target_buffer.append(step.value)
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else:
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if self.weigh_target_buffer:
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self.weigh_view.target = self.weigh_target_buffer.pop()
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else:
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self.weigh_view.target = 0.0
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elif step.step_type == StepType.WEIGH_WITH_TIMER:
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if not reverse:
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self.timer_view.reset_timer()
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self.timer_view.goal_secs = step.goal_time if step.goal_time > 0 else 0
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self.timer_view.toggle_timer()
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self.weigh_view.target = step.value
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self.weigh_target_buffer.append(step.value)
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else:
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self.timer_view.reset_timer()
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if self.weigh_target_buffer:
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self.weigh_view.target = self.weigh_target_buffer.pop()
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else:
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self.weigh_view.target = 0.0
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################ VIEW MANAGEMENT ################
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def update_views(self, selected_types: DISPLAY_TYPES):
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# Clear only the selectable views, not the timer
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for v in self.views:
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if v.ui is not None:
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v.ui.destroy()
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self.views.clear()
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if selected_types & DISPLAY_TYPES.NUMBER:
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number_view = NumberView(self.actions, self.im_size, self.center)
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self.views.append(number_view)
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if selected_types & DISPLAY_TYPES.CIRCLE:
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self.weigh_view = CircleView(self.actions, self.im_size, self.center)
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self.views.append(self.weigh_view)
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def refresh(self, weight: float):
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ims = []
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if self.curr_mode == DISPLAY_MODES.MAIN or self.curr_mode == DISPLAY_MODES.DO_RECIPE:
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# Always include timer and button view
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if self.curr_mode == DISPLAY_MODES.MAIN or \
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(self.current_steps[1] is not None and \
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self.current_steps[1].step_type != StepType.SECTION):
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timer_im = self.timer_view.update_weight(weight)
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ims.append(timer_im)
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elif self.curr_mode == DISPLAY_MODES.DO_RECIPE and \
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self.current_steps[1].step_type == StepType.SECTION:
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if self.current_steps[1] is None:
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self.text_view.set_text("Enjoy")
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else:
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# In recipe mode, if current step is a section, show a blank screen instead of timer
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self.text_view.set_text(self.current_steps[1].value_str)
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text_im = self.text_view.update_weight(weight)
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ims.append(text_im)
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button_im = self.buttons.update_weight(weight)
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ims.append(button_im)
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if self.curr_mode == DISPLAY_MODES.MAIN or \
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self.current_steps[1] is None or \
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self.current_steps[1].step_type != StepType.SECTION:
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# Add other selected views
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for view in self.views:
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im = view.update_weight(weight)
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ims.append(im)
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else:
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button_im = self.buttons.update_weight(weight)
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ims.append(button_im)
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recipe_im = self.buttons.current_view.update_weight(weight)
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ims.append(recipe_im)
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self.canvas.delete("all")
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# Combine images by logical_and
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if ims:
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combined_im = ims[0]
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for im in ims[1:]:
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combined_im = ImageChops.invert(ImageChops.logical_xor(combined_im, im))
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# Convert PIL image to bytes
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buffer = io.BytesIO()
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combined_im.save(buffer, format='PNG')
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buffer.seek(0)
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# Load into PhotoImage and display on canvas
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self.photo = PhotoImage(data=buffer.getvalue())
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self.canvas.create_image(0, 0, anchor="nw", image=self.photo)
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