libervia-desktop-kivy: cagou/backport/carousel.py annotate

annotate cagou/backport/carousel.py @ 342:89799148f894

core: use classes and factory to handle platform specific behaviours in a generic way

author	Goffi <goffi@goffi.org>
date	Sat, 04 Jan 2020 16:24:57 +0100
parents	5bd583d00594
children

rev	line source
323 5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	1 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	2 Carousel
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	3 ========
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	4
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	5 .. image:: images/carousel.gif
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	6 :align: right
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	7
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	8 .. versionadded:: 1.4.0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	9
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	10 The :class:`Carousel` widget provides the classic mobile-friendly carousel view
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	11 where you can swipe between slides.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	12 You can add any content to the carousel and have it move horizontally or
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	13 vertically. The carousel can display pages in a sequence or a loop.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	14
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	15 Example::
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	16
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	17 from kivy.app import App
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	18 from kivy.uix.carousel import Carousel
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	19 from kivy.uix.image import AsyncImage
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	20
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	21
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	22 class CarouselApp(App):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	23 def build(self):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	24 carousel = Carousel(direction='right')
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	25 for i in range(10):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	26 src = "http://placehold.it/480x270.png&text=slide-%d&.png" % i
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	27 image = AsyncImage(source=src, allow_stretch=True)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	28 carousel.add_widget(image)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	29 return carousel
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	30
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	31
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	32 CarouselApp().run()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	33
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	34
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	35 Kv Example::
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	36
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	37 Carousel:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	38 direction: 'right'
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	39 AsyncImage:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	40 source: 'http://placehold.it/480x270.png&text=slide-1.png'
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	41 AsyncImage:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	42 source: 'http://placehold.it/480x270.png&text=slide-2.png'
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	43 AsyncImage:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	44 source: 'http://placehold.it/480x270.png&text=slide-3.png'
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	45 AsyncImage:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	46 source: 'http://placehold.it/480x270.png&text=slide-4.png'
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	47
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	48
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	49 .. versionchanged:: 1.5.0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	50 The carousel now supports active children, like the
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	51 :class:`~kivy.uix.scrollview.ScrollView`. It will detect a swipe gesture
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	52 according to the :attr:`Carousel.scroll_timeout` and
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	53 :attr:`Carousel.scroll_distance` properties.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	54
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	55 In addition, the slide container is no longer exposed by the API.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	56 The impacted properties are
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	57 :attr:`Carousel.slides`, :attr:`Carousel.current_slide`,
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	58 :attr:`Carousel.previous_slide` and :attr:`Carousel.next_slide`.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	59
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	60 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	61
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	62 __all__ = ('Carousel', )
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	63
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	64 from functools import partial
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	65 from kivy.clock import Clock
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	66 from kivy.factory import Factory
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	67 from kivy.animation import Animation
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	68 from kivy.uix.stencilview import StencilView
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	69 from kivy.uix.relativelayout import RelativeLayout
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	70 from kivy.properties import BooleanProperty, OptionProperty, AliasProperty, \
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	71 NumericProperty, ListProperty, ObjectProperty, StringProperty
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	72
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	73
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	74 class Carousel(StencilView):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	75 '''Carousel class. See module documentation for more information.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	76 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	77
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	78 slides = ListProperty([])
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	79 '''List of slides inside the Carousel. The slides are the
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	80 widgets added to the Carousel using the :attr:`add_widget` method.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	81
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	82 :attr:`slides` is a :class:`~kivy.properties.ListProperty` and is
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	83 read-only.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	84 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	85
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	86 def _get_slides_container(self):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	87 return [x.parent for x in self.slides]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	88
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	89 slides_container = AliasProperty(_get_slides_container, bind=('slides',))
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	90
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	91 direction = OptionProperty('right',
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	92 options=('right', 'left', 'top', 'bottom'))
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	93 '''Specifies the direction in which the slides are ordered. This
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	94 corresponds to the direction from which the user swipes to go from one
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	95 slide to the next. It
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	96 can be `right`, `left`, `top`, or `bottom`. For example, with
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	97 the default value of `right`, the second slide is to the right
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	98 of the first and the user would swipe from the right towards the
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	99 left to get to the second slide.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	100
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	101 :attr:`direction` is an :class:`~kivy.properties.OptionProperty` and
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	102 defaults to 'right'.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	103 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	104
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	105 min_move = NumericProperty(0.2)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	106 '''Defines the minimum distance to be covered before the touch is
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	107 considered a swipe gesture and the Carousel content changed.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	108 This is a expressed as a fraction of the Carousel's width.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	109 If the movement doesn't reach this minimum value, the movement is
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	110 cancelled and the content is restored to its original position.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	111
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	112 :attr:`min_move` is a :class:`~kivy.properties.NumericProperty` and
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	113 defaults to 0.2.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	114 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	115
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	116 anim_move_duration = NumericProperty(0.5)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	117 '''Defines the duration of the Carousel animation between pages.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	118
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	119 :attr:`anim_move_duration` is a :class:`~kivy.properties.NumericProperty`
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	120 and defaults to 0.5.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	121 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	122
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	123 anim_cancel_duration = NumericProperty(0.3)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	124 '''Defines the duration of the animation when a swipe movement is not
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	125 accepted. This is generally when the user does not make a large enough
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	126 swipe. See :attr:`min_move`.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	127
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	128 :attr:`anim_cancel_duration` is a :class:`~kivy.properties.NumericProperty`
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	129 and defaults to 0.3.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	130 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	131
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	132 loop = BooleanProperty(False)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	133 '''Allow the Carousel to loop infinitely. If True, when the user tries to
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	134 swipe beyond last page, it will return to the first. If False, it will
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	135 remain on the last page.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	136
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	137 :attr:`loop` is a :class:`~kivy.properties.BooleanProperty` and
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	138 defaults to False.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	139 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	140
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	141 def _get_index(self):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	142 if self.slides:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	143 return self._index % len(self.slides)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	144 return None
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	145
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	146 def _set_index(self, value):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	147 if self.slides:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	148 self._index = value % len(self.slides)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	149 else:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	150 self._index = None
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	151
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	152 index = AliasProperty(_get_index, _set_index,
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	153 bind=('_index', 'slides'),
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	154 cache=True)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	155 '''Get/Set the current slide based on the index.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	156
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	157 :attr:`index` is an :class:`~kivy.properties.AliasProperty` and defaults
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	158 to 0 (the first item).
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	159 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	160
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	161 def _prev_slide(self):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	162 slides = self.slides
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	163 len_slides = len(slides)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	164 index = self.index
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	165 if len_slides < 2: # None, or 1 slide
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	166 return None
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	167 if self.loop and index == 0:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	168 return slides[-1]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	169 if index > 0:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	170 return slides[index - 1]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	171
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	172 previous_slide = AliasProperty(_prev_slide,
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	173 bind=('slides', 'index', 'loop'),
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	174 cache=True)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	175 '''The previous slide in the Carousel. It is None if the current slide is
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	176 the first slide in the Carousel. This ordering reflects the order in which
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	177 the slides are added: their presentation varies according to the
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	178 :attr:`direction` property.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	179
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	180 :attr:`previous_slide` is an :class:`~kivy.properties.AliasProperty`.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	181
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	182 .. versionchanged:: 1.5.0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	183 This property no longer exposes the slides container. It returns
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	184 the widget you have added.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	185 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	186
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	187 def _curr_slide(self):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	188 if len(self.slides):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	189 return self.slides[self.index or 0]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	190
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	191 current_slide = AliasProperty(_curr_slide,
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	192 bind=('slides', 'index'),
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	193 cache=True)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	194 '''The currently shown slide.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	195
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	196 :attr:`current_slide` is an :class:`~kivy.properties.AliasProperty`.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	197
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	198 .. versionchanged:: 1.5.0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	199 The property no longer exposes the slides container. It returns
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	200 the widget you have added.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	201 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	202
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	203 def _next_slide(self):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	204 if len(self.slides) < 2: # None, or 1 slide
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	205 return None
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	206 if self.loop and self.index == len(self.slides) - 1:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	207 return self.slides[0]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	208 if self.index < len(self.slides) - 1:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	209 return self.slides[self.index + 1]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	210
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	211 next_slide = AliasProperty(_next_slide,
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	212 bind=('slides', 'index', 'loop'),
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	213 cache=True)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	214 '''The next slide in the Carousel. It is None if the current slide is
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	215 the last slide in the Carousel. This ordering reflects the order in which
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	216 the slides are added: their presentation varies according to the
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	217 :attr:`direction` property.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	218
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	219 :attr:`next_slide` is an :class:`~kivy.properties.AliasProperty`.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	220
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	221 .. versionchanged:: 1.5.0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	222 The property no longer exposes the slides container.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	223 It returns the widget you have added.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	224 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	225
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	226 scroll_timeout = NumericProperty(200)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	227 '''Timeout allowed to trigger the :attr:`scroll_distance`, in milliseconds.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	228 If the user has not moved :attr:`scroll_distance` within the timeout,
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	229 no scrolling will occur and the touch event will go to the children.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	230
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	231 :attr:`scroll_timeout` is a :class:`~kivy.properties.NumericProperty` and
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	232 defaults to 200 (milliseconds)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	233
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	234 .. versionadded:: 1.5.0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	235 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	236
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	237 scroll_distance = NumericProperty('20dp')
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	238 '''Distance to move before scrolling the :class:`Carousel` in pixels. As
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	239 soon as the distance has been traveled, the :class:`Carousel` will start
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	240 to scroll, and no touch event will go to children.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	241 It is advisable that you base this value on the dpi of your target device's
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	242 screen.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	243
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	244 :attr:`scroll_distance` is a :class:`~kivy.properties.NumericProperty` and
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	245 defaults to 20dp.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	246
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	247 .. versionadded:: 1.5.0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	248 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	249
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	250 anim_type = StringProperty('out_quad')
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	251 '''Type of animation to use while animating to the next/previous slide.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	252 This should be the name of an
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	253 :class:`~kivy.animation.AnimationTransition` function.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	254
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	255 :attr:`anim_type` is a :class:`~kivy.properties.StringProperty` and
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	256 defaults to 'out_quad'.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	257
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	258 .. versionadded:: 1.8.0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	259 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	260
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	261 ignore_perpendicular_swipes = BooleanProperty(False)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	262 '''Ignore swipes on axis perpendicular to direction.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	263
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	264 :attr:`ignore_perpendicular_swipes` is a
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	265 :class:`~kivy.properties.BooleanProperty` and defaults to False.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	266
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	267 .. versionadded:: 1.10.0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	268 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	269
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	270 # private properties, for internal use only ###
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	271 _index = NumericProperty(0, allownone=True)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	272 _prev = ObjectProperty(None, allownone=True)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	273 _current = ObjectProperty(None, allownone=True)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	274 _next = ObjectProperty(None, allownone=True)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	275 _offset = NumericProperty(0)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	276 _touch = ObjectProperty(None, allownone=True)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	277
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	278 _change_touch_mode_ev = None
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	279
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	280 def __init__(self, **kwargs):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	281 self._trigger_position_visible_slides = Clock.create_trigger(
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	282 self._position_visible_slides, -1)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	283 super(Carousel, self).__init__(**kwargs)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	284 self._skip_slide = None
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	285 self.touch_mode_change = False
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	286 self._prioritize_next = False
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	287 self.fbind('loop', lambda *args: self._insert_visible_slides())
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	288
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	289 def load_slide(self, slide):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	290 '''Animate to the slide that is passed as the argument.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	291
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	292 .. versionchanged:: 1.8.0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	293 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	294 slides = self.slides
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	295 start, stop = slides.index(self.current_slide), slides.index(slide)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	296 if start == stop:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	297 return
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	298
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	299 self._skip_slide = stop
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	300 if stop > start:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	301 self._prioritize_next = True
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	302 self._insert_visible_slides(_next_slide=slide)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	303 self.load_next()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	304 else:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	305 self._prioritize_next = False
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	306 self._insert_visible_slides(_prev_slide=slide)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	307 self.load_previous()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	308
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	309 def load_previous(self):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	310 '''Animate to the previous slide.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	311
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	312 .. versionadded:: 1.7.0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	313 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	314 self.load_next(mode='prev')
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	315
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	316 def load_next(self, mode='next'):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	317 '''Animate to the next slide.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	318
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	319 .. versionadded:: 1.7.0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	320 '''
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	321 if self.index is not None:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	322 w, h = self.size
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	323 _direction = {
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	324 'top': -h / 2,
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	325 'bottom': h / 2,
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	326 'left': w / 2,
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	327 'right': -w / 2}
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	328 _offset = _direction[self.direction]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	329 if mode == 'prev':
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	330 _offset = -_offset
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	331
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	332 self._start_animation(min_move=0, offset=_offset)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	333
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	334 def get_slide_container(self, slide):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	335 return slide.parent
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	336
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	337 @property
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	338 def _prev_equals_next(self):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	339 return self.loop and len(self.slides) == 2
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	340
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	341 def _insert_visible_slides(self, _next_slide=None, _prev_slide=None):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	342 get_slide_container = self.get_slide_container
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	343
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	344 previous_slide = _prev_slide if _prev_slide else self.previous_slide
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	345 if previous_slide:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	346 self._prev = get_slide_container(previous_slide)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	347 else:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	348 self._prev = None
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	349
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	350 current_slide = self.current_slide
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	351 if current_slide:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	352 self._current = get_slide_container(current_slide)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	353 else:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	354 self._current = None
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	355
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	356 next_slide = _next_slide if _next_slide else self.next_slide
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	357 if next_slide:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	358 self._next = get_slide_container(next_slide)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	359 else:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	360 self._next = None
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	361
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	362 if self._prev_equals_next:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	363 setattr(self, '_prev' if self._prioritize_next else '_next', None)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	364
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	365 super_remove = super(Carousel, self).remove_widget
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	366 for container in self.slides_container:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	367 super_remove(container)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	368
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	369 if self._prev and self._prev.parent is not self:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	370 super(Carousel, self).add_widget(self._prev)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	371 if self._next and self._next.parent is not self:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	372 super(Carousel, self).add_widget(self._next)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	373 if self._current:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	374 super(Carousel, self).add_widget(self._current)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	375
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	376 def _position_visible_slides(self, *args):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	377 slides, index = self.slides, self.index
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	378 no_of_slides = len(slides) - 1
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	379 if not slides:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	380 return
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	381 x, y, width, height = self.x, self.y, self.width, self.height
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	382 _offset, direction = self._offset, self.direction[0]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	383 _prev, _next, _current = self._prev, self._next, self._current
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	384 get_slide_container = self.get_slide_container
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	385 last_slide = get_slide_container(slides[-1])
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	386 first_slide = get_slide_container(slides[0])
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	387 skip_next = False
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	388 _loop = self.loop
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	389
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	390 if direction in 'rl':
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	391 xoff = x + _offset
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	392 x_prev = {'l': xoff + width, 'r': xoff - width}
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	393 x_next = {'l': xoff - width, 'r': xoff + width}
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	394 if _prev:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	395 _prev.pos = (x_prev[direction], y)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	396 elif _loop and _next and index == 0:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	397 # if first slide is moving to right with direction set to right
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	398 # or toward left with direction set to left
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	399 if ((_offset > 0 and direction == 'r') or
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	400 (_offset < 0 and direction == 'l')):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	401 # put last_slide before first slide
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	402 last_slide.pos = (x_prev[direction], y)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	403 skip_next = True
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	404 if _current:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	405 _current.pos = (xoff, y)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	406 if skip_next:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	407 return
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	408 if _next:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	409 _next.pos = (x_next[direction], y)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	410 elif _loop and _prev and index == no_of_slides:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	411 if ((_offset < 0 and direction == 'r') or
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	412 (_offset > 0 and direction == 'l')):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	413 first_slide.pos = (x_next[direction], y)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	414 if direction in 'tb':
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	415 yoff = y + _offset
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	416 y_prev = {'t': yoff - height, 'b': yoff + height}
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	417 y_next = {'t': yoff + height, 'b': yoff - height}
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	418 if _prev:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	419 _prev.pos = (x, y_prev[direction])
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	420 elif _loop and _next and index == 0:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	421 if ((_offset > 0 and direction == 't') or
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	422 (_offset < 0 and direction == 'b')):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	423 last_slide.pos = (x, y_prev[direction])
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	424 skip_next = True
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	425 if _current:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	426 _current.pos = (x, yoff)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	427 if skip_next:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	428 return
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	429 if _next:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	430 _next.pos = (x, y_next[direction])
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	431 elif _loop and _prev and index == no_of_slides:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	432 if ((_offset < 0 and direction == 't') or
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	433 (_offset > 0 and direction == 'b')):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	434 first_slide.pos = (x, y_next[direction])
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	435
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	436 def on_size(self, *args):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	437 size = self.size
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	438 for slide in self.slides_container:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	439 slide.size = size
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	440 self._trigger_position_visible_slides()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	441
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	442 def on_pos(self, *args):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	443 self._trigger_position_visible_slides()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	444
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	445 def on_index(self, *args):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	446 self._insert_visible_slides()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	447 self._trigger_position_visible_slides()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	448 self._offset = 0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	449
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	450 def on_slides(self, *args):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	451 if self.slides:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	452 self.index = self.index % len(self.slides)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	453 self._insert_visible_slides()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	454 self._trigger_position_visible_slides()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	455
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	456 def on__offset(self, *args):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	457 self._trigger_position_visible_slides()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	458 # if reached full offset, switch index to next or prev
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	459 direction = self.direction[0]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	460 _offset = self._offset
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	461 width = self.width
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	462 height = self.height
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	463 index = self.index
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	464 if self._skip_slide is not None or index is None:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	465 return
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	466
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	467 # Move to next slide?
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	468 if (direction == 'r' and _offset <= -width) or \
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	469 (direction == 'l' and _offset >= width) or \
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	470 (direction == 't' and _offset <= - height) or \
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	471 (direction == 'b' and _offset >= height):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	472 if self.next_slide:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	473 self.index += 1
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	474
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	475 # Move to previous slide?
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	476 elif (direction == 'r' and _offset >= width) or \
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	477 (direction == 'l' and _offset <= -width) or \
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	478 (direction == 't' and _offset >= height) or \
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	479 (direction == 'b' and _offset <= -height):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	480 if self.previous_slide:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	481 self.index -= 1
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	482
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	483 elif self._prev_equals_next:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	484 new_value = (_offset < 0) is (direction in 'rt')
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	485 if self._prioritize_next is not new_value:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	486 self._prioritize_next = new_value
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	487 if new_value is (self._next is None):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	488 self._prev, self._next = self._next, self._prev
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	489
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	490 def _start_animation(self, args, *kwargs):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	491 # compute target offset for ease back, next or prev
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	492 new_offset = 0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	493 direction = kwargs.get('direction', self.direction)[0]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	494 is_horizontal = direction in 'rl'
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	495 extent = self.width if is_horizontal else self.height
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	496 min_move = kwargs.get('min_move', self.min_move)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	497 _offset = kwargs.get('offset', self._offset)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	498
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	499 if _offset < min_move * -extent:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	500 new_offset = -extent
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	501 elif _offset > min_move * extent:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	502 new_offset = extent
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	503
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	504 # if new_offset is 0, it wasnt enough to go next/prev
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	505 dur = self.anim_move_duration
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	506 if new_offset == 0:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	507 dur = self.anim_cancel_duration
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	508
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	509 # detect edge cases if not looping
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	510 len_slides = len(self.slides)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	511 index = self.index
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	512 if not self.loop or len_slides == 1:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	513 is_first = (index == 0)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	514 is_last = (index == len_slides - 1)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	515 if direction in 'rt':
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	516 towards_prev = (new_offset > 0)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	517 towards_next = (new_offset < 0)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	518 else:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	519 towards_prev = (new_offset < 0)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	520 towards_next = (new_offset > 0)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	521 if (is_first and towards_prev) or (is_last and towards_next):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	522 new_offset = 0
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	523
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	524 anim = Animation(_offset=new_offset, d=dur, t=self.anim_type)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	525 anim.cancel_all(self)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	526
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	527 def _cmp(*l):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	528 if self._skip_slide is not None:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	529 self.index = self._skip_slide
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	530 self._skip_slide = None
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	531
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	532 anim.bind(on_complete=_cmp)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	533 anim.start(self)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	534
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	535 def _get_uid(self, prefix='sv'):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	536 return '{0}.{1}'.format(prefix, self.uid)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	537
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	538 def on_touch_down(self, touch):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	539 if not self.collide_point(*touch.pos):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	540 touch.ud[self._get_uid('cavoid')] = True
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	541 return
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	542 if self.disabled:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	543 return True
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	544 if self._touch:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	545 return super(Carousel, self).on_touch_down(touch)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	546 Animation.cancel_all(self)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	547 self._touch = touch
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	548 uid = self._get_uid()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	549 touch.grab(self)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	550 touch.ud[uid] = {
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	551 'mode': 'unknown',
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	552 'time': touch.time_start}
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	553 self._change_touch_mode_ev = Clock.schedule_once(
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	554 self._change_touch_mode, self.scroll_timeout / 1000.)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	555 self.touch_mode_change = False
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	556 return True
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	557
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	558 def on_touch_move(self, touch):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	559 if not self.touch_mode_change:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	560 if self.ignore_perpendicular_swipes and \
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	561 self.direction in ('top', 'bottom'):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	562 if abs(touch.oy - touch.y) < self.scroll_distance:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	563 if abs(touch.ox - touch.x) > self.scroll_distance:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	564 self._change_touch_mode()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	565 self.touch_mode_change = True
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	566 elif self.ignore_perpendicular_swipes and \
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	567 self.direction in ('right', 'left'):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	568 if abs(touch.ox - touch.x) < self.scroll_distance:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	569 if abs(touch.oy - touch.y) > self.scroll_distance:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	570 self._change_touch_mode()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	571 self.touch_mode_change = True
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	572
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	573 if self._get_uid('cavoid') in touch.ud:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	574 return
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	575 if self._touch is not touch:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	576 super(Carousel, self).on_touch_move(touch)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	577 return self._get_uid() in touch.ud
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	578 if touch.grab_current is not self:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	579 return True
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	580 ud = touch.ud[self._get_uid()]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	581 direction = self.direction[0]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	582 if ud['mode'] == 'unknown':
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	583 if direction in 'rl':
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	584 distance = abs(touch.ox - touch.x)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	585 else:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	586 distance = abs(touch.oy - touch.y)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	587 if distance > self.scroll_distance:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	588 ev = self._change_touch_mode_ev
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	589 if ev is not None:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	590 ev.cancel()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	591 ud['mode'] = 'scroll'
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	592 else:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	593 if direction in 'rl':
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	594 self._offset += touch.dx
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	595 if direction in 'tb':
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	596 self._offset += touch.dy
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	597 return True
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	598
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	599 def on_touch_up(self, touch):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	600 if self._get_uid('cavoid') in touch.ud:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	601 return
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	602 if self in [x() for x in touch.grab_list]:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	603 touch.ungrab(self)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	604 self._touch = None
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	605 ud = touch.ud[self._get_uid()]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	606 if ud['mode'] == 'unknown':
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	607 ev = self._change_touch_mode_ev
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	608 if ev is not None:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	609 ev.cancel()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	610 super(Carousel, self).on_touch_down(touch)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	611 Clock.schedule_once(partial(self._do_touch_up, touch), .1)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	612 else:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	613 self._start_animation()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	614
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	615 else:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	616 if self._touch is not touch and self.uid not in touch.ud:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	617 super(Carousel, self).on_touch_up(touch)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	618 return self._get_uid() in touch.ud
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	619
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	620 def _do_touch_up(self, touch, *largs):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	621 super(Carousel, self).on_touch_up(touch)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	622 # don't forget about grab event!
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	623 for x in touch.grab_list[:]:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	624 touch.grab_list.remove(x)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	625 x = x()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	626 if not x:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	627 continue
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	628 touch.grab_current = x
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	629 super(Carousel, self).on_touch_up(touch)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	630 touch.grab_current = None
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	631
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	632 def _change_touch_mode(self, *largs):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	633 if not self._touch:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	634 return
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	635 self._start_animation()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	636 uid = self._get_uid()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	637 touch = self._touch
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	638 ud = touch.ud[uid]
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	639 if ud['mode'] == 'unknown':
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	640 touch.ungrab(self)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	641 self._touch = None
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	642 super(Carousel, self).on_touch_down(touch)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	643 return
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	644
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	645 def add_widget(self, widget, index=0, canvas=None):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	646 container = RelativeLayout(
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	647 size=self.size, x=self.x - self.width, y=self.y)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	648 container.add_widget(widget)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	649 super(Carousel, self).add_widget(container, index, canvas)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	650 if index != 0:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	651 self.slides.insert(index - len(self.slides), widget)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	652 else:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	653 self.slides.append(widget)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	654
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	655 def remove_widget(self, widget, args, *kwargs):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	656 # XXX be careful, the widget.parent refer to the RelativeLayout
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	657 # added in add_widget(). But it will break if RelativeLayout
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	658 # implementation change.
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	659 # if we passed the real widget
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	660 slides = self.slides
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	661 if widget in slides:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	662 if self.index >= slides.index(widget):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	663 self.index = max(0, self.index - 1)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	664 container = widget.parent
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	665 slides.remove(widget)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	666 super(Carousel, self).remove_widget(container)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	667 return container.remove_widget(widget, args, *kwargs)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	668 return super(Carousel, self).remove_widget(widget, args, *kwargs)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	669
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	670 def clear_widgets(self):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	671 for slide in self.slides[:]:
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	672 self.remove_widget(slide)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	673 super(Carousel, self).clear_widgets()
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	674
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	675
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	676 if __name__ == '__main__':
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	677 from kivy.app import App
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	678
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	679 class Example1(App):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	680
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	681 def build(self):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	682 carousel = Carousel(direction='left',
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	683 loop=True)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	684 for i in range(4):
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	685 src = "http://placehold.it/480x270.png&text=slide-%d&.png" % i
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	686 image = Factory.AsyncImage(source=src, allow_stretch=True)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	687 carousel.add_widget(image)
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	688 return carousel
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	689
5bd583d00594 backport: added a new "backport" module for using unreleased code from Kivy: Goffi <goffi@goffi.org> parents: diff changeset	690 Example1().run()

Mercurial > libervia-desktop-kivy

annotate cagou/backport/carousel.py @ 342:89799148f894