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# coding=utf-8
from kivy.lang import Builder
from kivy.properties import StringProperty, BooleanProperty, ObjectProperty, \
NumericProperty, ListProperty, OptionProperty
from kivy.uix.behaviors import ButtonBehavior
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.floatlayout import FloatLayout
from kivymd.ripplebehavior import RectangularRippleBehavior
from kivymd.theming import ThemableBehavior
Builder.load_string("""
<SmartTile>
_img_widget: img
_img_overlay: img_overlay
_box_overlay: box
AsyncImage:
id: img
allow_stretch: root.allow_stretch
anim_delay: root.anim_delay
anim_loop: root.anim_loop
color: root.img_color
keep_ratio: root.keep_ratio
mipmap: root.mipmap
source: root.source
size_hint_y: 1 if root.overlap else None
x: root.x
y: root.y if root.overlap or root.box_position == 'header' else box.top
BoxLayout:
id: img_overlay
size_hint: img.size_hint
size: img.size
pos: img.pos
BoxLayout:
canvas:
Color:
rgba: root.box_color
Rectangle:
pos: self.pos
size: self.size
id: box
size_hint_y: None
height: dp(68) if root.lines == 2 else dp(48)
x: root.x
y: root.y if root.box_position == 'footer' else root.y + root.height - self.height
<SmartTileWithLabel>
_img_widget: img
_img_overlay: img_overlay
_box_overlay: box
_box_label: boxlabel
AsyncImage:
id: img
allow_stretch: root.allow_stretch
anim_delay: root.anim_delay
anim_loop: root.anim_loop
color: root.img_color
keep_ratio: root.keep_ratio
mipmap: root.mipmap
source: root.source
size_hint_y: 1 if root.overlap else None
x: root.x
y: root.y if root.overlap or root.box_position == 'header' else box.top
BoxLayout:
id: img_overlay
size_hint: img.size_hint
size: img.size
pos: img.pos
BoxLayout:
canvas:
Color:
rgba: root.box_color
Rectangle:
pos: self.pos
size: self.size
id: box
size_hint_y: None
height: dp(68) if root.lines == 2 else dp(48)
x: root.x
y: root.y if root.box_position == 'footer' else root.y + root.height - self.height
MDLabel:
id: boxlabel
font_style: "Caption"
halign: "center"
text: root.text
""")
class Tile(ThemableBehavior, RectangularRippleBehavior, ButtonBehavior,
BoxLayout):
"""A simple tile. It does nothing special, just inherits the right behaviors
to work as a building block.
"""
pass
class SmartTile(ThemableBehavior, RectangularRippleBehavior, ButtonBehavior,
FloatLayout):
"""A tile for more complex needs.
Includes an image, a container to place overlays and a box that can act
as a header or a footer, as described in the Material Design specs.
"""
box_color = ListProperty([0, 0, 0, 0.5])
"""Sets the color and opacity for the information box."""
box_position = OptionProperty('footer', options=['footer', 'header'])
"""Determines wether the information box acts as a header or footer to the
image.
"""
lines = OptionProperty(1, options=[1, 2])
"""Number of lines in the header/footer.
As per Material Design specs, only 1 and 2 are valid values.
"""
overlap = BooleanProperty(True)
"""Determines if the header/footer overlaps on top of the image or not"""
# Img properties
allow_stretch = BooleanProperty(True)
anim_delay = NumericProperty(0.25)
anim_loop = NumericProperty(0)
img_color = ListProperty([1, 1, 1, 1])
keep_ratio = BooleanProperty(False)
mipmap = BooleanProperty(False)
source = StringProperty()
_img_widget = ObjectProperty()
_img_overlay = ObjectProperty()
_box_overlay = ObjectProperty()
_box_label = ObjectProperty()
def reload(self):
self._img_widget.reload()
def add_widget(self, widget, index=0):
if issubclass(widget.__class__, IOverlay):
self._img_overlay.add_widget(widget, index)
elif issubclass(widget.__class__, IBoxOverlay):
self._box_overlay.add_widget(widget, index)
else:
super(SmartTile, self).add_widget(widget, index)
class SmartTileWithLabel(SmartTile):
_box_label = ObjectProperty()
# MDLabel properties
font_style = StringProperty("Caption")
theme_text_color = StringProperty("")
text = StringProperty("")
"""Determines the text for the box footer/header"""
class IBoxOverlay():
"""An interface to specify widgets that belong to to the image overlay
in the :class:`SmartTile` widget when added as a child.
"""
pass
class IOverlay():
"""An interface to specify widgets that belong to to the image overlay
in the :class:`SmartTile` widget when added as a child.
"""
pass