mopidy-touchscreen/mopidy_touchscreen/screen_manager.py

from .main_screen import MainScreen
from .touch_manager import TouchManager
from .screen_objects import ScreenObjectsManager
import pygame
import logging

logger = logging.getLogger(__name__)


class ScreenManager():

    def __init__(self, size, core, backend):
        self.size = size
        self.core = core
        self.backend = backend
        self.fonts = {}
        self.base_size = self.size[1] / 8
        self.fonts['dejavuserif'] = pygame.font.SysFont("dejavuserif", self.base_size)
        self.fonts['dejavusans'] = pygame.font.SysFont("dejavusans", self.base_size)
        self.screens = [MainScreen(size, self, "/home/ander", core,self.fonts)]
        self.track = None
        self.touch_manager = TouchManager(size)
        self.screen_objects_manager = ScreenObjectsManager(size,self.base_size)
        x = self.screen_objects_manager.add_touch_object("pause_play",self.fonts['dejavusans'],u" ll",(0,0),(255,255,255))
        x = x + self.base_size / 2
        x = self.screen_objects_manager.add_touch_object("random",self.fonts['dejavuserif'],u"\u2928",(x,0),(255,255,255))
        x = x + self.base_size / 2
        x = self.screen_objects_manager.add_touch_object("repeat",self.fonts['dejavuserif'],u"\u27F21",(x,0),(255,255,255))
        x = x + self.base_size / 2
        x = self.screen_objects_manager.add_touch_object("mute",self.fonts['dejavusans'],"Mute",(x,0),(255,255,255))
        x = x + self.base_size / 2
        self.screen_objects_manager.add_progressbar("volume",self.fonts['dejavusans'],"100", (x,0), (self.size[0],self.base_size),100, True)
        self.screen_objects_manager.get_touch_object("volume").set_value(self.core.playback.volume.get())
        self.top_bar = pygame.Surface((self.size[0],self.base_size),pygame.SRCALPHA)
        self.top_bar.fill((0,0,0,128))

    def update(self):
        surface = pygame.Surface(self.size)
        self.screens[0].update(surface)
        surface.blit(self.top_bar,(0,0))
        self.screen_objects_manager.render(surface)
        return surface

    def track_started(self, track):
        self.track = track
        self.screens[0].track_started(track.track)

    def event(self, event):
        touch_event = self.touch_manager.event(event)
        if touch_event is not None:
            if touch_event.type == TouchManager.click:
                objects = self.screen_objects_manager.get_touch_objects_in_pos(touch_event.current_pos)
                if objects is not None:
                    for key in objects:
                        if key == "volume":
                            value = self.screen_objects_manager.get_touch_object(key).get_pos_value(touch_event.current_pos)
                            self.backend.tell({'action':'volume','value':value})
                            self.screen_objects_manager.get_touch_object(key).set_value(value)
            self.screens[0].touch_event(touch_event)

    def volume_changed(self, volume):
        self.screen_objects_manager.get_touch_object("volume").set_value(volume)