79 lines
3.5 KiB
Python
79 lines
3.5 KiB
Python
import clutter
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class Transition:
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def __init__(self, GlossMgr):
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self.stage = GlossMgr.stage
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self.glossMgr = GlossMgr
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def do_transition(self, fromMenu, toMenu):
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oldGroup = fromMenu.getItemGroup()
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oldMenuGroup = fromMenu #.getMenuGroup()
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newGroup = toMenu.getItemGroup()
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newMenuGroup = toMenu #.getMenuGroup()
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oldGroup.set_opacity(255)
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self.timeline = clutter.Timeline(25, 50)
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self.alpha = clutter.Alpha(self.timeline, clutter.ramp_inc_func)
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#self.exit_behaviour_scale = clutter.BehaviourScale(self.alpha, 1, 0.5, clutter.GRAVITY_CENTER)
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self.exit_behaviour_opacity = clutter.BehaviourOpacity(opacity_start=150, opacity_end=0, alpha=self.alpha)
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#Setup some knots
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knots_exiting = (\
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(oldGroup.get_x(), oldGroup.get_y()),\
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#(-oldGroup.get_x(), int(fromMenu.getStage().get_height()/2))
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(-oldGroup.get_x(), oldGroup.get_y())\
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)
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self.exit_behaviour_path = clutter.BehaviourPath(knots=knots_exiting, alpha=self.alpha)
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#self.exit_behaviour_scale.apply(oldGroup)
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self.exit_behaviour_opacity.apply(oldGroup)
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self.exit_behaviour_opacity.apply(oldMenuGroup)
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self.exit_behaviour_path.apply(oldGroup)
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##################################################################
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#Start incoming menu
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#self.exit_behaviour_scale = clutter.BehaviourScale(self.alpha, 1, 0.5, clutter.GRAVITY_CENTER)
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self.entrance_behaviour_opacity = clutter.BehaviourOpacity(opacity_start=0, opacity_end=255, alpha=self.alpha)
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#Setup some knots
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start_y = int(self.stage.get_height()/2 - newGroup.get_height()/2)
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start_x = int(self.stage.get_width())
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newGroup.set_position(start_x, start_y)
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#end_x = int(self.stage.get_width() - newGroup.get_width())/2
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(end_x, end_y) = toMenu.get_display_position()
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end_x = oldGroup.get_x() #int(end_x)
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end_y = oldGroup.get_y() #int(end_y)
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knots_entering = (\
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(newGroup.get_x(), newGroup.get_y()),\
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#(-oldGroup.get_x(), int(fromMenu.getStage().get_height()/2))
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(end_x, end_y) \
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#toMenu.get_display_position()
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)
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self.entrance_behaviour_path = clutter.BehaviourPath(self.alpha, knots_entering)
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self.entrance_behaviour_opacity.apply(newGroup)
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self.entrance_behaviour_opacity.apply(newMenuGroup)
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self.entrance_behaviour_path.apply(newGroup)
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#newGroup.show_all()
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#newMenuGroup.show_all()
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toMenu.display()
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#Finally, move the selector bar
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self.glossMgr.selector_bar.selectItem(fromMenu.getItem(0), self.timeline)
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#(to_x, to_y) = toMenu.get_display_position() #fromMenu.getItem(0).get_abs_position()
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#self.selector_bar.move_to(int(to_x), int(to_y), self.timeline)
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toMenu.selectFirst(False)
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#self.timeline.connect('completed', self.on_transition_complete, fromMenu)
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self.timeline.start()
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self.glossMgr.currentMenu = toMenu
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def on_transition_complete(self, data):
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pass |