454 lines
16 KiB
Python
454 lines
16 KiB
Python
|
# -*- coding: utf-8 -*-
|
||
|
|
'''
|
||
|
|
Buttons
|
||
|
|
=======
|
||
|
|
|
||
|
|
`Material Design spec, Buttons page <https://www.google.com/design/spec/components/buttons.html>`_
|
||
|
|
|
||
|
|
`Material Design spec, Buttons: Floating Action Button page <https://www.google.com/design/spec/components/buttons-floating-action-button.html>`_
|
||
|
|
|
||
|
|
TO-DO: DOCUMENT MODULE
|
||
|
|
'''
|
||
|
|
from kivy.clock import Clock
|
||
|
|
from kivy.lang import Builder
|
||
|
|
from kivy.metrics import dp
|
||
|
|
from kivy.utils import get_color_from_hex
|
||
|
|
from kivy.properties import StringProperty, BoundedNumericProperty, \
|
||
|
|
ListProperty, AliasProperty, BooleanProperty, NumericProperty, \
|
||
|
|
OptionProperty
|
||
|
|
from kivy.uix.anchorlayout import AnchorLayout
|
||
|
|
from kivy.uix.behaviors import ButtonBehavior
|
||
|
|
from kivy.uix.boxlayout import BoxLayout
|
||
|
|
from kivy.animation import Animation
|
||
|
|
from kivymd.backgroundcolorbehavior import BackgroundColorBehavior
|
||
|
|
from kivymd.ripplebehavior import CircularRippleBehavior, \
|
||
|
|
RectangularRippleBehavior
|
||
|
|
from kivymd.elevationbehavior import ElevationBehavior, \
|
||
|
|
RoundElevationBehavior
|
||
|
|
from kivymd.theming import ThemableBehavior
|
||
|
|
from kivymd.color_definitions import colors
|
||
|
|
|
||
|
|
Builder.load_string('''
|
||
|
|
#:import md_icons kivymd.icon_definitions.md_icons
|
||
|
|
#:import colors kivymd.color_definitions.colors
|
||
|
|
#:import MDLabel kivymd.label.MDLabel
|
||
|
|
<MDIconButton>
|
||
|
|
size_hint: (None, None)
|
||
|
|
size: (dp(48), dp(48))
|
||
|
|
padding: dp(12)
|
||
|
|
theme_text_color: 'Primary'
|
||
|
|
MDLabel:
|
||
|
|
id: _label
|
||
|
|
font_style: 'Icon'
|
||
|
|
text: u"{}".format(md_icons[root.icon])
|
||
|
|
halign: 'center'
|
||
|
|
theme_text_color: root.theme_text_color
|
||
|
|
text_color: root.text_color
|
||
|
|
opposite_colors: root.opposite_colors
|
||
|
|
valign: 'middle'
|
||
|
|
|
||
|
|
<MDFlatButton>
|
||
|
|
canvas:
|
||
|
|
Color:
|
||
|
|
#rgba: self.background_color if self.state == 'normal' else self._bg_color_down
|
||
|
|
rgba: self._current_button_color
|
||
|
|
Rectangle:
|
||
|
|
size: self.size
|
||
|
|
pos: self.pos
|
||
|
|
size_hint: (None, None)
|
||
|
|
height: dp(36)
|
||
|
|
width: _label.texture_size[0] + dp(16)
|
||
|
|
padding: (dp(8), 0)
|
||
|
|
theme_text_color: 'Custom'
|
||
|
|
text_color: root.theme_cls.primary_color
|
||
|
|
MDLabel:
|
||
|
|
id: _label
|
||
|
|
text: root._text
|
||
|
|
font_style: 'Button'
|
||
|
|
size_hint_x: None
|
||
|
|
text_size: (None, root.height)
|
||
|
|
height: self.texture_size[1]
|
||
|
|
theme_text_color: root.theme_text_color
|
||
|
|
text_color: root.text_color
|
||
|
|
valign: 'middle'
|
||
|
|
halign: 'center'
|
||
|
|
opposite_colors: root.opposite_colors
|
||
|
|
|
||
|
|
<MDRaisedButton>:
|
||
|
|
canvas:
|
||
|
|
Clear
|
||
|
|
Color:
|
||
|
|
rgba: self.background_color_disabled if self.disabled else \
|
||
|
|
(self.background_color if self.state == 'normal' else self.background_color_down)
|
||
|
|
Rectangle:
|
||
|
|
size: self.size
|
||
|
|
pos: self.pos
|
||
|
|
|
||
|
|
anchor_x: 'center'
|
||
|
|
anchor_y: 'center'
|
||
|
|
background_color: root.theme_cls.primary_color
|
||
|
|
background_color_down: root.theme_cls.primary_dark
|
||
|
|
background_color_disabled: root.theme_cls.divider_color
|
||
|
|
theme_text_color: 'Primary'
|
||
|
|
MDLabel:
|
||
|
|
id: label
|
||
|
|
font_style: 'Button'
|
||
|
|
text: root._text
|
||
|
|
size_hint: None, None
|
||
|
|
width: root.width
|
||
|
|
text_size: self.width, None
|
||
|
|
height: self.texture_size[1]
|
||
|
|
theme_text_color: root.theme_text_color
|
||
|
|
text_color: root.text_color
|
||
|
|
opposite_colors: root.opposite_colors
|
||
|
|
disabled: root.disabled
|
||
|
|
halign: 'center'
|
||
|
|
valign: 'middle'
|
||
|
|
|
||
|
|
<MDFloatingActionButton>:
|
||
|
|
canvas:
|
||
|
|
Clear
|
||
|
|
Color:
|
||
|
|
rgba: self.background_color_disabled if self.disabled else \
|
||
|
|
(self.background_color if self.state == 'normal' else self.background_color_down)
|
||
|
|
Ellipse:
|
||
|
|
size: self.size
|
||
|
|
pos: self.pos
|
||
|
|
|
||
|
|
anchor_x: 'center'
|
||
|
|
anchor_y: 'center'
|
||
|
|
background_color: root.theme_cls.accent_color
|
||
|
|
background_color_down: root.theme_cls.accent_dark
|
||
|
|
background_color_disabled: root.theme_cls.divider_color
|
||
|
|
theme_text_color: 'Primary'
|
||
|
|
MDLabel:
|
||
|
|
id: label
|
||
|
|
font_style: 'Icon'
|
||
|
|
text: u"{}".format(md_icons[root.icon])
|
||
|
|
size_hint: None, None
|
||
|
|
size: dp(24), dp(24)
|
||
|
|
text_size: self.size
|
||
|
|
theme_text_color: root.theme_text_color
|
||
|
|
text_color: root.text_color
|
||
|
|
opposite_colors: root.opposite_colors
|
||
|
|
disabled: root.disabled
|
||
|
|
halign: 'center'
|
||
|
|
valign: 'middle'
|
||
|
|
''')
|
||
|
|
|
||
|
|
|
||
|
|
class MDIconButton(CircularRippleBehavior, ButtonBehavior, BoxLayout):
|
||
|
|
icon = StringProperty('circle')
|
||
|
|
theme_text_color = OptionProperty(None, allownone=True,
|
||
|
|
options=['Primary', 'Secondary', 'Hint',
|
||
|
|
'Error', 'Custom'])
|
||
|
|
text_color = ListProperty(None, allownone=True)
|
||
|
|
opposite_colors = BooleanProperty(False)
|
||
|
|
|
||
|
|
|
||
|
|
class MDFlatButton(ThemableBehavior, RectangularRippleBehavior,
|
||
|
|
ButtonBehavior, BackgroundColorBehavior, AnchorLayout):
|
||
|
|
width = BoundedNumericProperty(dp(64), min=dp(64), max=None,
|
||
|
|
errorhandler=lambda x: dp(64))
|
||
|
|
|
||
|
|
text_color = ListProperty()
|
||
|
|
|
||
|
|
text = StringProperty('')
|
||
|
|
theme_text_color = OptionProperty(None, allownone=True,
|
||
|
|
options=['Primary', 'Secondary', 'Hint',
|
||
|
|
'Error', 'Custom'])
|
||
|
|
text_color = ListProperty(None, allownone=True)
|
||
|
|
|
||
|
|
_text = StringProperty('')
|
||
|
|
_bg_color_down = ListProperty([0, 0, 0, 0])
|
||
|
|
_current_button_color = ListProperty([0, 0, 0, 0])
|
||
|
|
|
||
|
|
def __init__(self, **kwargs):
|
||
|
|
super(MDFlatButton, self).__init__(**kwargs)
|
||
|
|
self._current_button_color = self.background_color
|
||
|
|
self._bg_color_down = get_color_from_hex(
|
||
|
|
colors[self.theme_cls.theme_style]['FlatButtonDown'])
|
||
|
|
|
||
|
|
Clock.schedule_once(lambda x: self.ids._label.bind(
|
||
|
|
texture_size=self.update_width_on_label_texture))
|
||
|
|
|
||
|
|
def update_width_on_label_texture(self, instance, value):
|
||
|
|
self.ids._label.width = value[0]
|
||
|
|
|
||
|
|
def on_text(self, instance, value):
|
||
|
|
self._text = value.upper()
|
||
|
|
|
||
|
|
def on_touch_down(self, touch):
|
||
|
|
if touch.is_mouse_scrolling:
|
||
|
|
return False
|
||
|
|
elif not self.collide_point(touch.x, touch.y):
|
||
|
|
return False
|
||
|
|
elif self in touch.ud:
|
||
|
|
return False
|
||
|
|
elif self.disabled:
|
||
|
|
return False
|
||
|
|
else:
|
||
|
|
self.fade_bg = Animation(duration=.2, _current_button_color=get_color_from_hex(
|
||
|
|
colors[self.theme_cls.theme_style]['FlatButtonDown']))
|
||
|
|
self.fade_bg.start(self)
|
||
|
|
return super(MDFlatButton, self).on_touch_down(touch)
|
||
|
|
|
||
|
|
def on_touch_up(self, touch):
|
||
|
|
if touch.grab_current is self:
|
||
|
|
self.fade_bg.stop_property(self, '_current_button_color')
|
||
|
|
Animation(duration=.05, _current_button_color=self.background_color).start(self)
|
||
|
|
return super(MDFlatButton, self).on_touch_up(touch)
|
||
|
|
|
||
|
|
|
||
|
|
class MDRaisedButton(ThemableBehavior, RectangularRippleBehavior,
|
||
|
|
ElevationBehavior, ButtonBehavior,
|
||
|
|
AnchorLayout):
|
||
|
|
_bg_color_down = ListProperty([])
|
||
|
|
background_color = ListProperty()
|
||
|
|
background_color_down = ListProperty()
|
||
|
|
background_color_disabled = ListProperty()
|
||
|
|
theme_text_color = OptionProperty(None, allownone=True,
|
||
|
|
options=['Primary', 'Secondary', 'Hint',
|
||
|
|
'Error', 'Custom'])
|
||
|
|
text_color = ListProperty(None, allownone=True)
|
||
|
|
|
||
|
|
def _get_bg_color_down(self):
|
||
|
|
return self._bg_color_down
|
||
|
|
|
||
|
|
def _set_bg_color_down(self, color, alpha=None):
|
||
|
|
if len(color) == 2:
|
||
|
|
self._bg_color_down = get_color_from_hex(
|
||
|
|
colors[color[0]][color[1]])
|
||
|
|
if alpha:
|
||
|
|
self._bg_color_down[3] = alpha
|
||
|
|
elif len(color) == 4:
|
||
|
|
self._bg_color_down = color
|
||
|
|
|
||
|
|
background_color_down = AliasProperty(_get_bg_color_down,
|
||
|
|
_set_bg_color_down,
|
||
|
|
bind=('_bg_color_down',))
|
||
|
|
|
||
|
|
_bg_color_disabled = ListProperty([])
|
||
|
|
|
||
|
|
def _get_bg_color_disabled(self):
|
||
|
|
return self._bg_color_disabled
|
||
|
|
|
||
|
|
def _set_bg_color_disabled(self, color, alpha=None):
|
||
|
|
if len(color) == 2:
|
||
|
|
self._bg_color_disabled = get_color_from_hex(
|
||
|
|
colors[color[0]][color[1]])
|
||
|
|
if alpha:
|
||
|
|
self._bg_color_disabled[3] = alpha
|
||
|
|
elif len(color) == 4:
|
||
|
|
self._bg_color_disabled = color
|
||
|
|
|
||
|
|
background_color_disabled = AliasProperty(_get_bg_color_disabled,
|
||
|
|
_set_bg_color_disabled,
|
||
|
|
bind=('_bg_color_disabled',))
|
||
|
|
|
||
|
|
_elev_norm = NumericProperty(2)
|
||
|
|
|
||
|
|
def _get_elev_norm(self):
|
||
|
|
return self._elev_norm
|
||
|
|
|
||
|
|
def _set_elev_norm(self, value):
|
||
|
|
self._elev_norm = value if value <= 12 else 12
|
||
|
|
self._elev_raised = (value + 6) if value + 6 <= 12 else 12
|
||
|
|
self.elevation = self._elev_norm
|
||
|
|
|
||
|
|
elevation_normal = AliasProperty(_get_elev_norm, _set_elev_norm,
|
||
|
|
bind=('_elev_norm',))
|
||
|
|
|
||
|
|
_elev_raised = NumericProperty(8)
|
||
|
|
|
||
|
|
def _get_elev_raised(self):
|
||
|
|
return self._elev_raised
|
||
|
|
|
||
|
|
def _set_elev_raised(self, value):
|
||
|
|
self._elev_raised = value if value + self._elev_norm <= 12 else 12
|
||
|
|
|
||
|
|
elevation_raised = AliasProperty(_get_elev_raised, _set_elev_raised,
|
||
|
|
bind=('_elev_raised',))
|
||
|
|
|
||
|
|
text = StringProperty()
|
||
|
|
|
||
|
|
_text = StringProperty()
|
||
|
|
|
||
|
|
def __init__(self, **kwargs):
|
||
|
|
super(MDRaisedButton, self).__init__(**kwargs)
|
||
|
|
self.elevation_press_anim = Animation(elevation=self.elevation_raised,
|
||
|
|
duration=.2, t='out_quad')
|
||
|
|
self.elevation_release_anim = Animation(
|
||
|
|
elevation=self.elevation_normal, duration=.2, t='out_quad')
|
||
|
|
|
||
|
|
def on_disabled(self, instance, value):
|
||
|
|
if value:
|
||
|
|
self.elevation = 0
|
||
|
|
else:
|
||
|
|
self.elevation = self.elevation_normal
|
||
|
|
super(MDRaisedButton, self).on_disabled(instance, value)
|
||
|
|
|
||
|
|
def on_touch_down(self, touch):
|
||
|
|
if not self.disabled:
|
||
|
|
if touch.is_mouse_scrolling:
|
||
|
|
return False
|
||
|
|
if not self.collide_point(touch.x, touch.y):
|
||
|
|
return False
|
||
|
|
if self in touch.ud:
|
||
|
|
return False
|
||
|
|
Animation.cancel_all(self, 'elevation')
|
||
|
|
self.elevation_press_anim.start(self)
|
||
|
|
return super(MDRaisedButton, self).on_touch_down(touch)
|
||
|
|
|
||
|
|
def on_touch_up(self, touch):
|
||
|
|
if not self.disabled:
|
||
|
|
if touch.grab_current is not self:
|
||
|
|
return super(ButtonBehavior, self).on_touch_up(touch)
|
||
|
|
Animation.cancel_all(self, 'elevation')
|
||
|
|
self.elevation_release_anim.start(self)
|
||
|
|
else:
|
||
|
|
Animation.cancel_all(self, 'elevation')
|
||
|
|
self.elevation = 0
|
||
|
|
return super(MDRaisedButton, self).on_touch_up(touch)
|
||
|
|
|
||
|
|
def on_text(self, instance, text):
|
||
|
|
self._text = text.upper()
|
||
|
|
|
||
|
|
def on__elev_norm(self, instance, value):
|
||
|
|
self.elevation_release_anim = Animation(elevation=value,
|
||
|
|
duration=.2, t='out_quad')
|
||
|
|
|
||
|
|
def on__elev_raised(self, instance, value):
|
||
|
|
self.elevation_press_anim = Animation(elevation=value,
|
||
|
|
duration=.2, t='out_quad')
|
||
|
|
|
||
|
|
|
||
|
|
class MDFloatingActionButton(ThemableBehavior, CircularRippleBehavior,
|
||
|
|
RoundElevationBehavior, ButtonBehavior,
|
||
|
|
AnchorLayout):
|
||
|
|
_bg_color_down = ListProperty([])
|
||
|
|
background_color = ListProperty()
|
||
|
|
background_color_down = ListProperty()
|
||
|
|
background_color_disabled = ListProperty()
|
||
|
|
theme_text_color = OptionProperty(None, allownone=True,
|
||
|
|
options=['Primary', 'Secondary', 'Hint',
|
||
|
|
'Error', 'Custom'])
|
||
|
|
text_color = ListProperty(None, allownone=True)
|
||
|
|
|
||
|
|
def _get_bg_color_down(self):
|
||
|
|
return self._bg_color_down
|
||
|
|
|
||
|
|
def _set_bg_color_down(self, color, alpha=None):
|
||
|
|
if len(color) == 2:
|
||
|
|
self._bg_color_down = get_color_from_hex(
|
||
|
|
colors[color[0]][color[1]])
|
||
|
|
if alpha:
|
||
|
|
self._bg_color_down[3] = alpha
|
||
|
|
elif len(color) == 4:
|
||
|
|
self._bg_color_down = color
|
||
|
|
|
||
|
|
background_color_down = AliasProperty(_get_bg_color_down,
|
||
|
|
_set_bg_color_down,
|
||
|
|
bind=('_bg_color_down',))
|
||
|
|
|
||
|
|
_bg_color_disabled = ListProperty([])
|
||
|
|
|
||
|
|
def _get_bg_color_disabled(self):
|
||
|
|
return self._bg_color_disabled
|
||
|
|
|
||
|
|
def _set_bg_color_disabled(self, color, alpha=None):
|
||
|
|
if len(color) == 2:
|
||
|
|
self._bg_color_disabled = get_color_from_hex(
|
||
|
|
colors[color[0]][color[1]])
|
||
|
|
if alpha:
|
||
|
|
self._bg_color_disabled[3] = alpha
|
||
|
|
elif len(color) == 4:
|
||
|
|
self._bg_color_disabled = color
|
||
|
|
|
||
|
|
background_color_disabled = AliasProperty(_get_bg_color_disabled,
|
||
|
|
_set_bg_color_disabled,
|
||
|
|
bind=('_bg_color_disabled',))
|
||
|
|
icon = StringProperty('android')
|
||
|
|
|
||
|
|
_elev_norm = NumericProperty(6)
|
||
|
|
|
||
|
|
def _get_elev_norm(self):
|
||
|
|
return self._elev_norm
|
||
|
|
|
||
|
|
def _set_elev_norm(self, value):
|
||
|
|
self._elev_norm = value if value <= 12 else 12
|
||
|
|
self._elev_raised = (value + 6) if value + 6 <= 12 else 12
|
||
|
|
self.elevation = self._elev_norm
|
||
|
|
|
||
|
|
elevation_normal = AliasProperty(_get_elev_norm, _set_elev_norm,
|
||
|
|
bind=('_elev_norm',))
|
||
|
|
|
||
|
|
# _elev_raised = NumericProperty(12)
|
||
|
|
_elev_raised = NumericProperty(6)
|
||
|
|
|
||
|
|
def _get_elev_raised(self):
|
||
|
|
return self._elev_raised
|
||
|
|
|
||
|
|
def _set_elev_raised(self, value):
|
||
|
|
self._elev_raised = value if value + self._elev_norm <= 12 else 12
|
||
|
|
|
||
|
|
elevation_raised = AliasProperty(_get_elev_raised, _set_elev_raised,
|
||
|
|
bind=('_elev_raised',))
|
||
|
|
|
||
|
|
def __init__(self, **kwargs):
|
||
|
|
if self.elevation_raised == 0 and self.elevation_normal + 6 <= 12:
|
||
|
|
self.elevation_raised = self.elevation_normal + 6
|
||
|
|
elif self.elevation_raised == 0:
|
||
|
|
self.elevation_raised = 12
|
||
|
|
|
||
|
|
super(MDFloatingActionButton, self).__init__(**kwargs)
|
||
|
|
|
||
|
|
self.elevation_press_anim = Animation(elevation=self.elevation_raised,
|
||
|
|
duration=.2, t='out_quad')
|
||
|
|
self.elevation_release_anim = Animation(
|
||
|
|
elevation=self.elevation_normal, duration=.2, t='out_quad')
|
||
|
|
|
||
|
|
def _set_ellipse(self, instance, value):
|
||
|
|
ellipse = self.ellipse
|
||
|
|
ripple_rad = self.ripple_rad
|
||
|
|
|
||
|
|
ellipse.size = (ripple_rad, ripple_rad)
|
||
|
|
ellipse.pos = (self.center_x - ripple_rad / 2.,
|
||
|
|
self.center_y - ripple_rad / 2.)
|
||
|
|
|
||
|
|
def on_disabled(self, instance, value):
|
||
|
|
super(MDFloatingActionButton, self).on_disabled(instance, value)
|
||
|
|
if self.disabled:
|
||
|
|
self.elevation = 0
|
||
|
|
else:
|
||
|
|
self.elevation = self.elevation_normal
|
||
|
|
|
||
|
|
def on_touch_down(self, touch):
|
||
|
|
if not self.disabled:
|
||
|
|
if touch.is_mouse_scrolling:
|
||
|
|
return False
|
||
|
|
if not self.collide_point(touch.x, touch.y):
|
||
|
|
return False
|
||
|
|
if self in touch.ud:
|
||
|
|
return False
|
||
|
|
self.elevation_press_anim.stop(self)
|
||
|
|
self.elevation_press_anim.start(self)
|
||
|
|
return super(MDFloatingActionButton, self).on_touch_down(touch)
|
||
|
|
|
||
|
|
def on_touch_up(self, touch):
|
||
|
|
if not self.disabled:
|
||
|
|
if touch.grab_current is not self:
|
||
|
|
return super(ButtonBehavior, self).on_touch_up(touch)
|
||
|
|
self.elevation_release_anim.stop(self)
|
||
|
|
self.elevation_release_anim.start(self)
|
||
|
|
return super(MDFloatingActionButton, self).on_touch_up(touch)
|
||
|
|
|
||
|
|
def on_elevation_normal(self, instance, value):
|
||
|
|
self.elevation = value
|
||
|
|
|
||
|
|
def on_elevation_raised(self, instance, value):
|
||
|
|
if self.elevation_raised == 0 and self.elevation_normal + 6 <= 12:
|
||
|
|
self.elevation_raised = self.elevation_normal + 6
|
||
|
|
elif self.elevation_raised == 0:
|
||
|
|
self.elevation_raised = 12
|