def __init__(self, alpha, text, item_height, font_size, color_name):
clutter.Group.__init__(self)
self.label = Label(font_size, color_name, 0, 0)
self.label.set_text(text)
self.behaviour = LoopedPathBehaviour(alpha)
self.behaviour.apply(self)
self.add(self.label)
def __init__(self, x, y, width, height, content):
Base.__init__(self)
clutter.Group.__init__(self)
self._motion_buffer = MotionBuffer()
self._offset = 0 # Drives the content motion.
self._offset_max = 0 # Maximum value of offset (equal on bottom).
self._old_offset = 0 # Stores the old value of offset on motions.
self._motion_handler = 0
self._active = None
self.step_size = self.get_abs_y(self.STEP_SIZE_PERCENT)
# Allowed area for the widget's scrolling content.
self.area_width = self.get_abs_x(width)
self.area_height = self.get_abs_y(height)
# Create content position indicator
self.indicator = ListIndicator(3 * width / 4, height, 0.2, 0.045,
ListIndicator.VERTICAL)
self.indicator.hide_position()
self.indicator.set_maximum(2)
self.add(self.indicator)
# A clipped Group to receive the content.
self._fixed_group = clutter.Group()
self._fixed_group.set_clip(0, 0, self.area_width, self.area_height)
self.add(self._fixed_group)
self.content = None
self._motion_timeline = clutter.Timeline(500)
self._motion_timeline.connect('completed',
self._motion_timeline_callback, None)
self._motion_alpha = clutter.Alpha(self._motion_timeline,
clutter.EASE_OUT_SINE)
self._motion_behaviour = LoopedPathBehaviour(self._motion_alpha)
self.set_content(content)
self.active = None
# Preparation to pointer events handling.
self.set_reactive(True)
self.connect('button-press-event', self._on_button_press_event)
self.connect('button-release-event', self._on_button_release_event)
self.connect('scroll-event', self._on_scroll_event)
self.set_position(self.get_abs_x(x), self.get_abs_y(y))