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path: root/helpers/key.py
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from kivy.uix.widget import Widget
from kivy.properties import AliasProperty, BooleanProperty, ListProperty, StringProperty
from kivy.clock import Clock
from kivy.uix.behaviors import ButtonBehavior

from .action import *
import time

class Key(ButtonBehavior, Widget):
    key_sym = StringProperty(None)
    custom_color = ListProperty([0, 1, 0, 1])
    custom_unready_color = ListProperty([0, 1, 0, 100/255])
    description_title = StringProperty("")
    description = ListProperty([])
    is_key_ready = BooleanProperty(True)

    def get_color(self):
        if not self.has_actions:
            return [1, 1, 1, 1]
        elif self.all_actions_ready:
            return self.custom_color
        else:
            return self.custom_unready_color
    def set_color(self):
        pass

    color = AliasProperty(get_color, set_color, bind=['is_key_ready'])

    def __init__(self, **kwargs):
        super(Key, self).__init__(**kwargs)
        self.actions = []

    def on_key_sym(self, key, key_sym):
        if key_sym in self.parent.key_config:
            self.is_key_ready = False

            self.config = self.parent.key_config[key_sym]

            self.actions = []
            for key_action in self.config['actions']:
                self.add_action(key_action[0], **key_action[1])

            if 'description' in self.config['properties']:
                key.set_description(self.config['properties']['description'])
            if 'color' in self.config['properties']:
                key.set_color(self.config['properties']['color'])

            Clock.schedule_interval(self.check_all_active, 1)

    def check_all_active(self, dt):
        if self.all_actions_ready:
            self.is_key_ready = True
            return False

    def set_description(self, description):
        if description[0] is not None:
            self.description_title = str(description[0])
        for desc in description[1:]:
            if desc is None:
                self.description.append("")
            else:
                self.description.append(str(desc).replace(" ", " "))

    def set_color(self, color):
        color = [x / 255 for x in color]
        color.append(1)
        self.custom_color = color
        color[3] = 100 / 255
        self.custom_unready_color = tuple(color)

    @property
    def has_actions(self):
        return len(self.actions) > 0

    @property
    def all_actions_ready(self):
        return all(action.ready() for action in self.actions)

    def add_action(self, action_name, **arguments):
        self.actions.append(Action(action_name, self, **arguments))

    def interrupt_action(self):
        self.current_action.interrupt()

    def do_actions(self):
        if not self.enabled:
            return None

        self.parent.parent.ids['KeyList'].append(self.key_sym)
        print("running actions for {}".format(self.key_sym))
        start_time = time.time()
        self.parent.start_running(self, start_time)
        action_number = 0
        for self.current_action in self.actions:
            if self.parent.keep_running(self, start_time):
                self.list_actions(action_number = action_number + 0.5)
                self.current_action.run()
                action_number += 1
                self.list_actions(action_number = action_number)

        self.parent.finished_running(self, start_time)

    def list_actions(self, action_number = 0):
        self.parent.parent.ids['ActionList'].update_list(self, action_number)

    def on_press(self):
        self.list_actions()
    pass