class ListIndicator(Base, clutter.Group):
"""
ListIndicator displays 'current / maximum' value label and arrows.
"""
# Direction
# HORIZONTAL layout: ARROW_LEFT current / maximum ARROW_RIGHT
# VERITCAL layout: current / maximum ARROW_UP ARROW_DOWN
HORIZONTAL = 0
VERTICAL = 1
def __init__(self, x, y, width, height, direction):
Base.__init__(self)
clutter.Group.__init__(self)
self.config = Configuration()
# Size
self.width = self.get_abs_x(width)
self.height = self.get_abs_y(height)
self.direction = direction
self.delimiter = " | "
self.current = 1
self.maximum = 1
self.theme = self.config.theme
self.fg = self.theme.get_color("arrow_foreground")
self.bg = self.theme.get_color("arrow_background")
if direction == ListIndicator.VERTICAL:
text_x_pos = width / 3
else:
text_x_pos = width / 2
self.text = Label(
height * 0.8, "text", text_x_pos, height / 2,
str(self.maximum) + self.delimiter + str(self.maximum))
self.text.set_anchor_point_from_gravity(clutter.GRAVITY_CENTER)
self.add(self.text)
# Create arrows and calculate positions on screen
if direction == ListIndicator.VERTICAL:
self.arrow1 = ArrowTexture(5 * width / 7, height / 2, height / 2,
self.fg, self.bg, ArrowTexture.UP)
self.arrow2 = ArrowTexture(6 * width / 7, height / 2, height / 2,
self.fg, self.bg, ArrowTexture.DOWN)
elif direction == ListIndicator.HORIZONTAL:
self.arrow1 = ArrowTexture(height / 2, height / 2, height / 2,
self.fg, self.bg, ArrowTexture.LEFT)
self.arrow2 = ArrowTexture(6 * width / 7, height / 2, height / 2,
self.fg, self.bg, ArrowTexture.RIGHT)
self.add(self.arrow1)
self.add(self.arrow2)
self.set_position(self.get_abs_x(x), self.get_abs_y(y))
def set_current(self, value):
"""
Set current value
@param number: Current value (between 1 - maximum)
"""
if value > 0 and value <= self.maximum:
self.current = value
self._update_text()
# Bounce arrow if user has reached the limit
if self.current == 1:
self.arrow1.bounce()
elif self.current == self.maximum:
self.arrow2.bounce()
def get_current(self):
"""
Get current value
@return Current value (integer)
"""
return self.current
def set_maximum(self, value):
"""
Set maximum value of the indicator
@param number: Set maximum value
"""
self.maximum = value
self._update_text()
def get_maximum(self):
"""
Get maximum value.
@return Max value (integer)
"""
return self.maximum
def set_delimiter(self, delimiter):
"""
Set delimiter text that is displayed between current and maximum value.
Default delimiter text is ' / ' spaces included.
@param delimiter: delimiter text
"""
self.delimiter = delimiter
self._update_text()
def show_position(self):
"""
Show position text that indicates the current position of the content.
"""
self.text.show()
def hide_position(self):
"""
Hide position text that indicates the current position of the content.
If this is called then indicator shows only arrows.
"""
self.text.hide()
def _update_text(self):
"""Update the text label"""
self.text.set_text(
str(self.current) + self.delimiter + str(self.maximum))
class Album(Screen):
'''Screen that allows user to browse and play tracks of the music album.'''
def __init__(self, media_player, music_library, move_to_new_screen_callback,
album):
Screen.__init__(self, 'Album', move_to_new_screen_callback)
self.media_player = media_player
self.theme = self.config.theme
self.library = music_library
self.album = album
self.art = None
self.track_menu = None
# Create and initialize screen items
self.track_menu = self._create_track_menu()
self.add(self.track_menu)
self._create_album_cover_texture()
self._create_album_info()
self.screen_title = Label(0.13, "screentitle", 0, 0.87, "")
self.screen_title.set_ellipsize(pango.ELLIPSIZE_END)
self.screen_title.width = 0.8
self.add(self.screen_title)
#List indicator
self.li = ListIndicator(0.74, 0.85, 0.2, 0.045, ListIndicator.VERTICAL)
self.li.set_maximum(len(self.album.tracks))
self.add(self.li)
self.track_menu.active = True
self.track_menu.connect('selected', self._on_menu_selected)
self.track_menu.connect('moved', self._display_selected_track)
def _create_album_cover_texture(self):
"""
Create a texture that is displayed next to track list. This texture
displays album cover art.
"""
if(self.album.has_album_art()):
pixbuf = gtk.gdk.pixbuf_new_from_file(self.album.album_art_url)
else:
pixbuf = gtk.gdk.pixbuf_new_from_file(
self.theme.getImage("default_album_art"))
self.art = EyeCandyTexture(0.1, 0.13, 0.3148, 0.5599, pixbuf)
self.art.set_rotation(clutter.Y_AXIS, 25, 0, 0, 0)
self.add(self.art)
def _create_album_info(self):
"""
Create album info labels.
"""
if self.album.year != 0:
album_text = self.album.title + ", " + str(self.album.year)
else:
album_text = self.album.title
album = Label(0.0416, "text", 0.5, 0.13, album_text, font_weight="bold")
album.set_ellipsize(pango.ELLIPSIZE_END)
album.set_line_wrap(False)
album.width = 0.45
self.add(album)
length = str(self.album.length / 60)
num_of_tracks_text = _("%(total)s tracks, %(time)s minutes") % \
{'total': len(self.album.tracks), 'time': length}
num_of_tracks = Label(0.028, "subtitle", 0.5, 0.18,
num_of_tracks_text, font_weight="bold")
self.add(num_of_tracks)
def _create_track_menu(self):
"""
Create track menu. This menu contains list of all tracks on album.
"""
menu = TextMenu(0.4978, 0.2344, 0.4393, 0.0781)
tracks = self.album.tracks
tracks_list = [[track.title, track.length_string, track] \
for track in tracks]
menu.async_add(tracks_list)
return menu
def is_interested_in_play_action(self):
"""
Override function from Screen class. See Screen class for
better documentation.
"""
return True
def execute_play_action(self):
"""
Override function from Screen class. See Screen class for
better documentation.
"""
track = self.track_menu.selected_userdata
self.media_player.set_media(track)
self.media_player.play()
def _handle_up(self):
'''Handle UserEvent.NAVIGATE_UP.'''
self.track_menu.up()
def _handle_down(self):
'''Handle UserEvent.NAVIGATE_DOWN.'''
self.track_menu.down()
def _handle_select(self, event=None):
'''Handle UserEvent.NAVIGATE_SELECT.'''
track = self.track_menu.selected_userdata
kwargs = { 'track' : track }
self.callback("audio_play", kwargs)
def _on_menu_selected(self, actor=None):
'''Handle a *select command* if an item was selected.'''
self._handle_select()
def _display_selected_track(self, actor=None):
'''Update of the list indicator and the screen's title'''
self.li.set_current(self.track_menu.selected_index + 1)
track = self.track_menu.selected_userdata
self.screen_title.set_text(track.artist)
self.screen_title.show()
class ListIndicator(Base, clutter.Group):
"""
ListIndicator displays 'current / maximum' value label and arrows.
"""
# Direction
# HORIZONTAL layout: ARROW_LEFT current / maximum ARROW_RIGHT
# VERITCAL layout: current / maximum ARROW_UP ARROW_DOWN
HORIZONTAL = 0
VERTICAL = 1
def __init__(self, x, y, width, height, direction):
Base.__init__(self)
clutter.Group.__init__(self)
self.config = Configuration()
# Size
self.width = self.get_abs_x(width)
self.height = self.get_abs_y(height)
self.direction = direction
self.delimiter = " | "
self.current = 1
self.maximum = 1
self.theme = self.config.theme
self.fg = self.theme.get_color("arrow_foreground")
self.bg = self.theme.get_color("arrow_background")
if direction == ListIndicator.VERTICAL:
text_x_pos = width / 3
else:
text_x_pos = width / 2
self.text = Label(height * 0.8, "text", text_x_pos, height / 2,
str(self.maximum) + self.delimiter + str(self.maximum))
self.text.set_anchor_point_from_gravity(clutter.GRAVITY_CENTER)
self.add(self.text)
# Create arrows and calculate positions on screen
if direction == ListIndicator.VERTICAL:
self.arrow1 = ArrowTexture(5 * width / 7, height / 2, height / 2,
self.fg, self.bg, ArrowTexture.UP)
self.arrow2 = ArrowTexture(6 * width / 7, height / 2, height / 2,
self.fg, self.bg, ArrowTexture.DOWN)
elif direction == ListIndicator.HORIZONTAL:
self.arrow1 = ArrowTexture(height / 2, height / 2, height / 2,
self.fg, self.bg, ArrowTexture.LEFT)
self.arrow2 = ArrowTexture(6 * width / 7, height / 2, height / 2,
self.fg, self.bg, ArrowTexture.RIGHT)
self.add(self.arrow1)
self.add(self.arrow2)
self.set_position(self.get_abs_x(x), self.get_abs_y(y))
def set_current(self, value):
"""
Set current value
@param number: Current value (between 1 - maximum)
"""
if value > 0 and value <= self.maximum:
self.current = value
self._update_text()
# Bounce arrow if user has reached the limit
if self.current == 1:
self.arrow1.bounce()
elif self.current == self.maximum:
self.arrow2.bounce()
def get_current(self):
"""
Get current value
@return Current value (integer)
"""
return self.current
def set_maximum(self, value):
"""
Set maximum value of the indicator
@param number: Set maximum value
"""
self.maximum = value
self._update_text()
def get_maximum(self):
"""
Get maximum value.
@return Max value (integer)
"""
return self.maximum
def set_delimiter(self, delimiter):
"""
Set delimiter text that is displayed between current and maximum value.
Default delimiter text is ' / ' spaces included.
@param delimiter: delimiter text
"""
self.delimiter = delimiter
self._update_text()
def show_position(self):
"""
Show position text that indicates the current position of the content.
"""
self.text.show()
def hide_position(self):
"""
Hide position text that indicates the current position of the content.
If this is called then indicator shows only arrows.
"""
self.text.hide()
def _update_text(self):
"""Update the text label"""
self.text.set_text(
str(self.current) + self.delimiter + str(self.maximum))
