Content from tidal import * from app import App import os DEFAULT_DISPLAY_TIME = 3000 DISPLAY_TIME_ADJUST = 1000 MINIMUM_DISPLAY_TIME = 1000 IMAGE_DIR = 'apps/slideshow' class slideshowApp(App): def on_activate(self): super().on_activate() self.buttons.on_press(JOY_UP, lambda: self.auto_update_speed_adjust(DISPLAY_TIME_ADJUST)) self.buttons.on_press(JOY_DOWN, lambda: self.auto_update_speed_adjust(-1*DISPLAY_TIME_ADJUST)) self.buttons.on_press(JOY_LEFT, lambda: self.jump_to_image(-1)) self.buttons.on_press(JOY_RIGHT, lambda: self.jump_to_image(1)) self.buttons.on_press(JOY_CENTRE, lambda: self.toggle_auto_update()) self.current_index = 0 self.images = [(IMAGE_DIR + '/' + x) for x in os.listdir(IMAGE_DIR) if ((x.endswith('.jpg')) or (x.endswith('.jpeg')))] self.auto_update = True self.display_time = DEFAULT_DISPLAY_TIME self.timer_task = self.periodic(self.display_time, self.update) self.show_current_image() self.update_index(1) def update_index(self, increment): self.current_index += increment self.current_index = self.current_index % len(self.images) def show_current_image(self): display.jpg(self.images[self.current_index],0,0) def update(self): self.show_current_image() self.update_index(1) def jump_to_image(self, direction): if self.auto_update: self.timer_task.cancel() self.timer_task = self.periodic(self.display_time, self.update) self.update_index(direction) self.show_current_image() def toggle_auto_update(self): self.auto_update = False if self.auto_update else True if self.auto_update: self.timer_task.cancel() self.timer_task = self.periodic(self.display_time, self.update) else: self.timer_task.cancel() def auto_update_speed_adjust(self, adjust): self.display_time += adjust if self.display_time < MINIMUM_DISPLAY_TIME: self.display_time = MINIMUM_DISPLAY_TIME if self.auto_update: self.timer_task.cancel() self.timer_task = self.periodic(self.display_time, self.update) def on_deactivate(self): super().on_deactivate() self.timer_task.cancel() main = slideshowApp