897 lines
22 KiB
Python
Executable file
897 lines
22 KiB
Python
Executable file
"""
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Components/Card
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===============
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.. seealso::
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`Material Design spec, Cards <https://material.io/components/cards>`_
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.. rubric:: Cards contain content and actions about a single subject.
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/cards.gif
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:align: center
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`KivyMD` provides the following card classes for use:
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- MDCard_
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- MDCardSwipe_
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.. Note:: :class:`~MDCard` inherited from
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:class:`~kivy.uix.boxlayout.BoxLayout`. You can use all parameters and
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attributes of the :class:`~kivy.uix.boxlayout.BoxLayout` class in the
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:class:`~MDCard` class.
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.. MDCard:
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MDCard
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------
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.. code-block:: python
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from kivy.lang import Builder
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from kivymd.app import MDApp
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KV = '''
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Screen:
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MDCard:
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size_hint: None, None
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size: "280dp", "180dp"
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pos_hint: {"center_x": .5, "center_y": .5}
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'''
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class TestCard(MDApp):
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def build(self):
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return Builder.load_string(KV)
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TestCard().run()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/card.png
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:align: center
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Add content to card:
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--------------------
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.. code-block:: python
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from kivy.lang import Builder
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from kivymd.app import MDApp
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KV = '''
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Screen:
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MDCard:
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orientation: "vertical"
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padding: "8dp"
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size_hint: None, None
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size: "280dp", "180dp"
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pos_hint: {"center_x": .5, "center_y": .5}
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MDLabel:
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text: "Title"
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theme_text_color: "Secondary"
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size_hint_y: None
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height: self.texture_size[1]
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MDSeparator:
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height: "1dp"
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MDLabel:
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text: "Body"
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'''
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class TestCard(MDApp):
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def build(self):
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return Builder.load_string(KV)
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TestCard().run()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/card-content.png
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:align: center
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.. MDCardSwipe:
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MDCardSwipe
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-----------
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/MDCardSwipe.gif
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:align: center
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To create a card with `swipe-to-delete` behavior, you must create a new class
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that inherits from the :class:`~MDCardSwipe` class:
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.. code-block:: kv
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<SwipeToDeleteItem>:
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size_hint_y: None
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height: content.height
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MDCardSwipeLayerBox:
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MDCardSwipeFrontBox:
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OneLineListItem:
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id: content
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text: root.text
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_no_ripple_effect: True
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.. code-block:: python
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class SwipeToDeleteItem(MDCardSwipe):
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text = StringProperty()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/map-mdcard-swipr.png
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:align: center
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End full code
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-------------
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.. code-block:: python
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from kivy.lang import Builder
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from kivy.properties import StringProperty
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from kivymd.app import MDApp
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from kivymd.uix.card import MDCardSwipe
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KV = '''
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<SwipeToDeleteItem>:
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size_hint_y: None
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height: content.height
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MDCardSwipeLayerBox:
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# Content under the card.
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MDCardSwipeFrontBox:
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# Content of card.
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OneLineListItem:
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id: content
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text: root.text
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_no_ripple_effect: True
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Screen:
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BoxLayout:
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orientation: "vertical"
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spacing: "10dp"
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MDToolbar:
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elevation: 10
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title: "MDCardSwipe"
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ScrollView:
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scroll_timeout : 100
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MDList:
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id: md_list
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padding: 0
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'''
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class SwipeToDeleteItem(MDCardSwipe):
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'''Card with `swipe-to-delete` behavior.'''
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text = StringProperty()
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class TestCard(MDApp):
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.screen = Builder.load_string(KV)
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def build(self):
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return self.screen
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def on_start(self):
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'''Creates a list of cards.'''
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for i in range(20):
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self.screen.ids.md_list.add_widget(
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SwipeToDeleteItem(text=f"One-line item {i}")
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)
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TestCard().run()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/list-mdcard-swipe.gif
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:align: center
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Binding a swipe to one of the sides of the screen
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-------------------------------------------------
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.. code-block:: kv
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<SwipeToDeleteItem>:
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# By default, the parameter is "left"
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anchor: "right"
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/mdcard-swipe-anchor-right.gif
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:align: center
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.. None:: You cannot use the left and right swipe at the same time.
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Swipe behavior
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--------------
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.. code-block:: kv
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<SwipeToDeleteItem>:
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# By default, the parameter is "hand"
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type_swipe: "hand"
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/hand-mdcard-swipe.gif
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:align: center
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.. code-block:: kv
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<SwipeToDeleteItem>:
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type_swipe: "auto"
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/auto-mdcard-swipe.gif
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:align: center
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Removing an item using the ``type_swipe = "auto"`` parameter
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------------------------------------------------------------
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The map provides the :attr:`MDCardSwipe.on_swipe_complete` event.
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You can use this event to remove items from a list:
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.. code-block:: kv
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<SwipeToDeleteItem>:
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on_swipe_complete: app.on_swipe_complete(root)
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.. code-block:: python
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def on_swipe_complete(self, instance):
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self.screen.ids.md_list.remove_widget(instance)
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End full code
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-------------
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.. code-block:: python
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from kivy.lang import Builder
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from kivy.properties import StringProperty
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from kivymd.app import MDApp
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from kivymd.uix.card import MDCardSwipe
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KV = '''
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<SwipeToDeleteItem>:
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size_hint_y: None
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height: content.height
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type_swipe: "auto"
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on_swipe_complete: app.on_swipe_complete(root)
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MDCardSwipeLayerBox:
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MDCardSwipeFrontBox:
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OneLineListItem:
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id: content
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text: root.text
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_no_ripple_effect: True
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Screen:
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BoxLayout:
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orientation: "vertical"
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spacing: "10dp"
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MDToolbar:
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elevation: 10
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title: "MDCardSwipe"
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ScrollView:
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MDList:
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id: md_list
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padding: 0
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'''
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class SwipeToDeleteItem(MDCardSwipe):
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text = StringProperty()
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class TestCard(MDApp):
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.screen = Builder.load_string(KV)
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def build(self):
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return self.screen
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def on_swipe_complete(self, instance):
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self.screen.ids.md_list.remove_widget(instance)
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def on_start(self):
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for i in range(20):
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self.screen.ids.md_list.add_widget(
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SwipeToDeleteItem(text=f"One-line item {i}")
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)
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TestCard().run()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/autodelete-mdcard-swipe.gif
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:align: center
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Add content to the bottom layer of the card
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-------------------------------------------
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To add content to the bottom layer of the card,
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use the :class:`~MDCardSwipeLayerBox` class.
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.. code-block:: kv
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<SwipeToDeleteItem>:
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MDCardSwipeLayerBox:
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padding: "8dp"
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MDIconButton:
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icon: "trash-can"
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pos_hint: {"center_y": .5}
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on_release: app.remove_item(root)
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End full code
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-------------
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.. code-block:: python
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from kivy.lang import Builder
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from kivy.properties import StringProperty
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from kivymd.app import MDApp
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from kivymd.uix.card import MDCardSwipe
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KV = '''
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<SwipeToDeleteItem>:
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size_hint_y: None
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height: content.height
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MDCardSwipeLayerBox:
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padding: "8dp"
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MDIconButton:
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icon: "trash-can"
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pos_hint: {"center_y": .5}
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on_release: app.remove_item(root)
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MDCardSwipeFrontBox:
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OneLineListItem:
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id: content
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text: root.text
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_no_ripple_effect: True
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Screen:
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BoxLayout:
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orientation: "vertical"
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spacing: "10dp"
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MDToolbar:
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elevation: 10
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title: "MDCardSwipe"
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ScrollView:
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MDList:
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id: md_list
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padding: 0
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'''
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class SwipeToDeleteItem(MDCardSwipe):
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text = StringProperty()
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class TestCard(MDApp):
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.screen = Builder.load_string(KV)
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def build(self):
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return self.screen
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def remove_item(self, instance):
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self.screen.ids.md_list.remove_widget(instance)
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def on_start(self):
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for i in range(20):
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self.screen.ids.md_list.add_widget(
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SwipeToDeleteItem(text=f"One-line item {i}")
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)
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TestCard().run()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/handdelete-mdcard-swipe.gif
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:align: center
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Focus behavior
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-------------
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.. code-block:: kv
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MDCard:
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focus_behavior: True
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/card-focus.gif
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:align: center
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Ripple behavior
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---------------
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.. code-block:: kv
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MDCard:
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ripple_behavior: True
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/card-behavior.gif
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:align: center
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End full code
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-------------
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.. code-block:: python
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from kivy.lang import Builder
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from kivymd.app import MDApp
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KV = '''
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<StarButton@MDIconButton>
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icon: "star"
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on_release: self.icon = "star-outline" if self.icon == "star" else "star"
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Screen:
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MDCard:
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orientation: "vertical"
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size_hint: .5, None
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height: box_top.height + box_bottom.height
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focus_behavior: True
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ripple_behavior: True
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pos_hint: {"center_x": .5, "center_y": .5}
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MDBoxLayout:
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id: box_top
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spacing: "20dp"
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adaptive_height: True
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FitImage:
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source: "/Users/macbookair/album.jpeg"
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size_hint: .3, None
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height: text_box.height
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MDBoxLayout:
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id: text_box
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orientation: "vertical"
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adaptive_height: True
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spacing: "10dp"
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padding: 0, "10dp", "10dp", "10dp"
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MDLabel:
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text: "Ride the Lightning"
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theme_text_color: "Primary"
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font_style: "H5"
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bold: True
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size_hint_y: None
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height: self.texture_size[1]
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MDLabel:
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text: "July 27, 1984"
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size_hint_y: None
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height: self.texture_size[1]
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theme_text_color: "Primary"
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MDSeparator:
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MDBoxLayout:
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id: box_bottom
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adaptive_height: True
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padding: "10dp", 0, 0, 0
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MDLabel:
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text: "Rate this album"
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size_hint_y: None
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height: self.texture_size[1]
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pos_hint: {"center_y": .5}
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theme_text_color: "Primary"
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StarButton:
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StarButton:
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StarButton:
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StarButton:
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StarButton:
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'''
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class Test(MDApp):
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def build(self):
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self.theme_cls.theme_style = "Dark"
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return Builder.load_string(KV)
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Test().run()
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"""
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__all__ = (
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"MDCard",
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"MDCardSwipe",
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"MDCardSwipeFrontBox",
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"MDCardSwipeLayerBox",
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"MDSeparator",
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)
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from kivy.animation import Animation
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from kivy.clock import Clock
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from kivy.lang import Builder
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from kivy.metrics import dp
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from kivy.properties import (
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BooleanProperty,
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ListProperty,
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NumericProperty,
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OptionProperty,
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StringProperty,
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)
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from kivy.uix.boxlayout import BoxLayout
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from kivy.uix.relativelayout import RelativeLayout
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from kivy.utils import get_color_from_hex
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from kivymd import images_path
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from kivymd.color_definitions import colors
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from kivymd.theming import ThemableBehavior
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from kivymd.uix.behaviors import (
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BackgroundColorBehavior,
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FocusBehavior,
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RectangularElevationBehavior,
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RectangularRippleBehavior,
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)
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Builder.load_string(
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"""
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<MDCardSwipeLayerBox>:
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canvas:
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Color:
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rgba: app.theme_cls.divider_color
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Rectangle:
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size: self.size
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pos: self.pos
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<MDCard>
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canvas:
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RoundedRectangle:
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size: self.size
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pos: self.pos
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source: root.background
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<MDSeparator>
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canvas:
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Color:
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rgba:
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self.theme_cls.divider_color if not root.color else root.color
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Rectangle:
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size: self.size
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pos: self.pos
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"""
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)
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class MDSeparator(ThemableBehavior, BoxLayout):
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"""A separator line."""
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color = ListProperty()
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"""Separator color in ``rgba`` format.
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:attr:`color` is a :class:`~kivy.properties.ListProperty`
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and defaults to `[]`.
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"""
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.on_orientation()
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def on_orientation(self, *args):
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self.size_hint = (
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(1, None) if self.orientation == "horizontal" else (None, 1)
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)
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if self.orientation == "horizontal":
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self.height = dp(1)
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else:
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self.width = dp(1)
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class MDCard(
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ThemableBehavior,
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BackgroundColorBehavior,
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RectangularElevationBehavior,
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FocusBehavior,
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BoxLayout,
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RectangularRippleBehavior,
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):
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background = StringProperty()
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"""
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Background image path.
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|
:attr:`background` is a :class:`~kivy.properties.StringProperty`
|
|
and defaults to `''`.
|
|
"""
|
|
|
|
focus_behavior = BooleanProperty(False)
|
|
"""
|
|
Using focus when hovering over a card.
|
|
|
|
:attr:`focus_behavior` is a :class:`~kivy.properties.BooleanProperty`
|
|
and defaults to `False`.
|
|
"""
|
|
|
|
ripple_behavior = BooleanProperty(False)
|
|
"""
|
|
Use ripple effect for card.
|
|
|
|
:attr:`ripple_behavior` is a :class:`~kivy.properties.BooleanProperty`
|
|
and defaults to `False`.
|
|
"""
|
|
|
|
elevation = NumericProperty(None, allownone=True)
|
|
"""
|
|
Elevation value.
|
|
|
|
:attr:`elevation` is an :class:`~kivy.properties.NumericProperty`
|
|
and defaults to 1.
|
|
"""
|
|
|
|
_bg_color_map = (
|
|
get_color_from_hex(colors["Light"]["CardsDialogs"]),
|
|
get_color_from_hex(colors["Dark"]["CardsDialogs"]),
|
|
[1.0, 1.0, 1.0, 0.0],
|
|
)
|
|
|
|
def __init__(self, **kwargs):
|
|
super().__init__(**kwargs)
|
|
self.theme_cls.bind(theme_style=self.update_md_bg_color)
|
|
Clock.schedule_once(lambda x: self._on_elevation(self.elevation))
|
|
Clock.schedule_once(
|
|
lambda x: self._on_ripple_behavior(self.ripple_behavior)
|
|
)
|
|
self.update_md_bg_color(self, self.theme_cls.theme_style)
|
|
|
|
def update_md_bg_color(self, instance, value):
|
|
if self.md_bg_color in self._bg_color_map:
|
|
self.md_bg_color = get_color_from_hex(colors[value]["CardsDialogs"])
|
|
|
|
def on_radius(self, instance, value):
|
|
if self.radius != [0, 0, 0, 0]:
|
|
self.background = f"{images_path}/transparent.png"
|
|
|
|
def _on_elevation(self, value):
|
|
if value is None:
|
|
self.elevation = 6
|
|
else:
|
|
self.elevation = value
|
|
|
|
def _on_ripple_behavior(self, value):
|
|
self._no_ripple_effect = False if value else True
|
|
|
|
|
|
class MDCardSwipe(RelativeLayout):
|
|
"""
|
|
:Events:
|
|
:attr:`on_swipe_complete`
|
|
Called when a swipe of card is completed.
|
|
"""
|
|
|
|
open_progress = NumericProperty(0.0)
|
|
"""
|
|
Percent of visible part of side panel. The percent is specified as a
|
|
floating point number in the range 0-1. 0.0 if panel is closed and 1.0 if
|
|
panel is opened.
|
|
|
|
:attr:`open_progress` is a :class:`~kivy.properties.NumericProperty`
|
|
and defaults to `0.0`.
|
|
"""
|
|
|
|
opening_transition = StringProperty("out_cubic")
|
|
"""
|
|
The name of the animation transition type to use when animating to
|
|
the :attr:`state` `'opened'`.
|
|
|
|
:attr:`opening_transition` is a :class:`~kivy.properties.StringProperty`
|
|
and defaults to `'out_cubic'`.
|
|
"""
|
|
|
|
closing_transition = StringProperty("out_sine")
|
|
"""
|
|
The name of the animation transition type to use when animating to
|
|
the :attr:`state` 'closed'.
|
|
|
|
:attr:`closing_transition` is a :class:`~kivy.properties.StringProperty`
|
|
and defaults to `'out_sine'`.
|
|
"""
|
|
|
|
anchor = OptionProperty("left", options=("left", "right"))
|
|
"""
|
|
Anchoring screen edge for card. Available options are: `'left'`, `'right'`.
|
|
|
|
:attr:`anchor` is a :class:`~kivy.properties.OptionProperty`
|
|
and defaults to `left`.
|
|
"""
|
|
|
|
swipe_distance = NumericProperty(50)
|
|
"""
|
|
The distance of the swipe with which the movement of navigation drawer
|
|
begins.
|
|
|
|
:attr:`swipe_distance` is a :class:`~kivy.properties.NumericProperty`
|
|
and defaults to `50`.
|
|
"""
|
|
|
|
opening_time = NumericProperty(0.2)
|
|
"""
|
|
The time taken for the card to slide to the :attr:`state` `'open'`.
|
|
|
|
:attr:`opening_time` is a :class:`~kivy.properties.NumericProperty`
|
|
and defaults to `0.2`.
|
|
"""
|
|
|
|
state = OptionProperty("closed", options=("closed", "opened"))
|
|
"""
|
|
Detailed state. Sets before :attr:`state`. Bind to :attr:`state` instead
|
|
of :attr:`status`. Available options are: `'closed'`, `'opened'`.
|
|
|
|
:attr:`status` is a :class:`~kivy.properties.OptionProperty`
|
|
and defaults to `'closed'`.
|
|
"""
|
|
|
|
max_swipe_x = NumericProperty(0.3)
|
|
"""
|
|
If, after the events of :attr:`~on_touch_up` card position exceeds this
|
|
value - will automatically execute the method :attr:`~open_card`,
|
|
and if not - will automatically be :attr:`~close_card` method.
|
|
|
|
:attr:`max_swipe_x` is a :class:`~kivy.properties.NumericProperty`
|
|
and defaults to `0.3`.
|
|
"""
|
|
|
|
max_opened_x = NumericProperty("100dp")
|
|
"""
|
|
The value of the position the card shifts to when :attr:`~type_swipe`
|
|
s set to `'hand'`.
|
|
|
|
:attr:`max_opened_x` is a :class:`~kivy.properties.NumericProperty`
|
|
and defaults to `100dp`.
|
|
"""
|
|
|
|
type_swipe = OptionProperty("hand", options=("auto", "hand"))
|
|
"""
|
|
Type of card opening when swipe. Shift the card to the edge or to
|
|
a set position :attr:`~max_opened_x`. Available options are:
|
|
`'auto'`, `'hand'`.
|
|
|
|
:attr:`type_swipe` is a :class:`~kivy.properties.OptionProperty`
|
|
and defaults to `auto`.
|
|
"""
|
|
|
|
_opens_process = False
|
|
_to_closed = True
|
|
|
|
def __init__(self, **kw):
|
|
self.register_event_type("on_swipe_complete")
|
|
super().__init__(**kw)
|
|
|
|
def _on_swipe_complete(self, *args):
|
|
self.dispatch("on_swipe_complete")
|
|
|
|
def add_widget(self, widget, index=0, canvas=None):
|
|
if isinstance(widget, (MDCardSwipeFrontBox, MDCardSwipeLayerBox)):
|
|
return super().add_widget(widget)
|
|
|
|
def on_swipe_complete(self, *args):
|
|
"""Called when a swipe of card is completed."""
|
|
|
|
def on_anchor(self, instance, value):
|
|
if value == "right":
|
|
self.open_progress = 1.0
|
|
else:
|
|
self.open_progress = 0.0
|
|
|
|
def on_open_progress(self, instance, value):
|
|
if self.anchor == "left":
|
|
self.children[0].x = self.width * value
|
|
else:
|
|
self.children[0].x = self.width * value - self.width
|
|
|
|
def on_touch_move(self, touch):
|
|
if self.collide_point(touch.x, touch.y):
|
|
expr = (
|
|
touch.x < self.swipe_distance
|
|
if self.anchor == "left"
|
|
else touch.x > self.width - self.swipe_distance
|
|
)
|
|
if expr and not self._opens_process:
|
|
self._opens_process = True
|
|
self._to_closed = False
|
|
if self._opens_process:
|
|
self.open_progress = max(
|
|
min(self.open_progress + touch.dx / self.width, 2.5), 0
|
|
)
|
|
return super().on_touch_move(touch)
|
|
|
|
def on_touch_up(self, touch):
|
|
if self.collide_point(touch.x, touch.y):
|
|
if not self._to_closed:
|
|
self._opens_process = False
|
|
self.complete_swipe()
|
|
return super().on_touch_up(touch)
|
|
|
|
def on_touch_down(self, touch):
|
|
if self.collide_point(touch.x, touch.y):
|
|
if self.state == "opened":
|
|
self._to_closed = True
|
|
self.close_card()
|
|
return super().on_touch_down(touch)
|
|
|
|
def complete_swipe(self):
|
|
expr = (
|
|
self.open_progress <= self.max_swipe_x
|
|
if self.anchor == "left"
|
|
else self.open_progress >= self.max_swipe_x
|
|
)
|
|
if expr:
|
|
self.close_card()
|
|
else:
|
|
self.open_card()
|
|
|
|
def open_card(self):
|
|
if self.type_swipe == "hand":
|
|
swipe_x = (
|
|
self.max_opened_x
|
|
if self.anchor == "left"
|
|
else -self.max_opened_x
|
|
)
|
|
else:
|
|
swipe_x = self.width if self.anchor == "left" else 0
|
|
anim = Animation(
|
|
x=swipe_x, t=self.opening_transition, d=self.opening_time
|
|
)
|
|
anim.bind(on_complete=self._on_swipe_complete)
|
|
anim.start(self.children[0])
|
|
self.state = "opened"
|
|
|
|
def close_card(self):
|
|
anim = Animation(x=0, t=self.closing_transition, d=self.opening_time)
|
|
anim.bind(on_complete=self._reset_open_progress)
|
|
anim.start(self.children[0])
|
|
self.state = "closed"
|
|
|
|
def _reset_open_progress(self, *args):
|
|
self.open_progress = 0.0 if self.anchor == "left" else 1.0
|
|
self._to_closed = False
|
|
self.dispatch("on_swipe_complete")
|
|
|
|
|
|
class MDCardSwipeFrontBox(MDCard):
|
|
pass
|
|
|
|
|
|
class MDCardSwipeLayerBox(BoxLayout):
|
|
pass
|