def create_adapters(self):
list_item_args_converter = \
lambda row_index, rec: {'text': rec['name'],
'size_hint_y': None,
'height': 25}
categories = sorted(fruit_categories.keys())
self.fruit_categories_dict_adapter = DictAdapter(
sorted_keys=categories,
data=fruit_categories,
args_converter=list_item_args_converter,
selection_mode='single',
allow_empty_selection=False,
cls=ListItemButton)
fruits = fruit_categories[categories[0]]['fruits']
self.fruits_dict_adapter = DictAdapter(
sorted_keys=fruits,
data=fruit_data,
args_converter=list_item_args_converter,
selection_mode='single',
allow_empty_selection=False,
cls=ListItemButton)
def create_adapters(self):
list_item_args_converter = \
lambda row_index, rec: {'text': rec['name'],
'size_hint_y': None,
'height': 25}
categories = sorted(fruit_categories.keys())
self.fruit_categories_dict_adapter = DictAdapter(
sorted_keys=categories,
data=fruit_categories,
args_converter=list_item_args_converter,
selection_mode='single',
allow_empty_selection=False,
cls=ListItemButton)
fruits = fruit_categories[categories[0]]['fruits']
self.fruits_dict_adapter = DictAdapter(
sorted_keys=fruits,
data=fruit_data,
args_converter=list_item_args_converter,
selection_mode='single',
allow_empty_selection=False,
cls=ListItemButton)
def __init__(self, **kwargs):
kwargs['cols'] = 3
kwargs['size_hint'] = (1.0, 1.0)
super(CascadingView, self).__init__(**kwargs)
list_item_args_converter = \
lambda row_index, rec: {'text': rec['name'],
'size_hint_y': None,
'height': 25}
# Fruit categories list on the left:
#
categories = sorted(fruit_categories.keys())
fruit_categories_list_adapter = \
DictAdapter(
sorted_keys=categories,
data=fruit_categories,
args_converter=list_item_args_converter,
selection_mode='single',
allow_empty_selection=False,
cls=ListItemButton)
fruit_categories_list_view = \
ListView(adapter=fruit_categories_list_adapter,
size_hint=(.2, 1.0))
self.add_widget(fruit_categories_list_view)
# Fruits, for a given category, in the middle:
#
image_list_item_args_converter = \
lambda row_index, rec: {'text': rec['name'],
'size_hint_y': None,
'height': 32}
fruits_list_adapter = \
FruitsDictAdapter(
sorted_keys=fruit_categories[categories[0]]['fruits'],
data=fruit_data,
args_converter=image_list_item_args_converter,
selection_mode='single',
allow_empty_selection=False,
template='ThumbnailedListItem')
fruits_list_view = \
ListView(adapter=fruits_list_adapter,
size_hint=(.2, 1.0))
fruit_categories_list_adapter.bind(
on_selection_change=fruits_list_adapter.fruit_category_changed)
self.add_widget(fruits_list_view)
# Detail view, for a given fruit, on the right:
#
detail_view = FruitImageDetailView(
fruit_name=fruits_list_adapter.selection[0].fruit_name,
size_hint=(.6, 1.0))
fruits_list_adapter.bind(
on_selection_change=detail_view.fruit_changed)
self.add_widget(detail_view)
def __init__(self, **kwargs):
kwargs['cols'] = 3
super(CascadingView, self).__init__(**kwargs)
list_item_args_converter = \
lambda row_index, rec: {'text': rec['name'],
'size_hint_y': None,
'height': 25}
# Fruit categories list on the left:
#
categories = sorted(fruit_categories.keys())
fruit_categories_list_adapter = \
DictAdapter(
sorted_keys=categories,
data=fruit_categories,
args_converter=list_item_args_converter,
selection_mode='single',
allow_empty_selection=False,
cls=ListItemButton)
fruit_categories_list_view = \
ListView(adapter=fruit_categories_list_adapter,
size_hint=(.2, 1.0))
self.add_widget(fruit_categories_list_view)
# Fruits, for a given category, in the middle:
#
image_list_item_args_converter = \
lambda row_index, rec: {'text': rec['name'],
'size_hint_y': None,
'height': 32}
fruits_list_adapter = \
FruitsDictAdapter(
sorted_keys=fruit_categories[categories[0]]['fruits'],
data=fruit_data,
args_converter=image_list_item_args_converter,
selection_mode='single',
allow_empty_selection=False,
template='ThumbnailedListItem')
fruits_list_view = \
ListView(adapter=fruits_list_adapter,
size_hint=(.2, 1.0))
fruit_categories_list_adapter.bind(
on_selection_change=fruits_list_adapter.fruit_category_changed)
self.add_widget(fruits_list_view)
# Detail view, for a given fruit, on the right:
#
detail_view = FruitImageDetailView(
fruit_name=fruits_list_adapter.selection[0].fruit_name,
size_hint=(.6, 1.0))
fruits_list_adapter.bind(
on_selection_change=detail_view.fruit_changed)
self.add_widget(detail_view)
def __init__(self, **kwargs):
kwargs["cols"] = 3
super(CascadingView, self).__init__(**kwargs)
list_item_args_converter = lambda row_index, rec: {"text": rec["name"], "size_hint_y": None, "height": 25}
# Fruit categories list on the left:
#
categories = sorted(fruit_categories.keys())
fruit_categories_list_adapter = DictAdapter(
sorted_keys=categories,
data=fruit_categories,
args_converter=list_item_args_converter,
selection_mode="single",
allow_empty_selection=False,
cls=ListItemButton,
)
fruit_categories_list_view = ListView(adapter=fruit_categories_list_adapter, size_hint=(0.2, 1.0))
self.add_widget(fruit_categories_list_view)
# Fruits, for a given category, in the middle:
#
image_list_item_args_converter = lambda row_index, rec: {"text": rec["name"], "size_hint_y": None, "height": 32}
fruits_list_adapter = FruitsDictAdapter(
sorted_keys=fruit_categories[categories[0]]["fruits"],
data=fruit_data,
args_converter=image_list_item_args_converter,
selection_mode="single",
allow_empty_selection=False,
template="ThumbnailedListItem",
)
fruits_list_view = ListView(adapter=fruits_list_adapter, size_hint=(0.2, 1.0))
fruit_categories_list_adapter.bind(on_selection_change=fruits_list_adapter.fruit_category_changed)
self.add_widget(fruits_list_view)
# Detail view, for a given fruit, on the right:
#
detail_view = FruitImageDetailView(fruit_name=fruits_list_adapter.selection[0].fruit_name, size_hint=(0.6, 1.0))
fruits_list_adapter.bind(on_selection_change=detail_view.fruit_changed)
self.add_widget(detail_view)
def __init__(self, **kwargs):
kwargs['cols'] = 3
super(CascadingView, self).__init__(**kwargs)
list_item_args_converter = \
lambda row_index, selectable: {'text': selectable.name,
'size_hint_y': None,
'height': 25}
# Add a fruit categories list on the left. We use ListAdapter, for
# which we set the data argument to the list of CategoryItem
# instances from above. The args_converter only pulls the name
# property from these instances, adding also size_hint_y and height.
# selection_mode is single, because this list will "drive" the second
# list defined below. allow_empty_selection is False, because we
# always want a selected category, so that the second list will be
# populated. Finally, we instruct ListAdapter to build list item views
# using the provided cls, ListItemButton.
#
fruit_categories_list_adapter = \
ListAdapter(data=category_data_items,
args_converter=list_item_args_converter,
selection_mode='single',
allow_empty_selection=False,
cls=ListItemButton)
fruit_categories_list_view = \
ListView(adapter=fruit_categories_list_adapter,
size_hint=(.2, 1.0))
self.add_widget(fruit_categories_list_view)
# Fruits, for a given category, are in a list in the middle, which
# uses FruitsListsAdapter, defined above. FruitsListAdapter has a
# fruit_changed() method that updates the data list. The binding
# to the fruit_categories_list_adapter is set up after
# instantiation of the fruit_list_adapter.
#
first_category_fruits = \
fruit_categories[fruit_categories.keys()[0]]['fruits']
first_category_fruit_data_items = \
[f for f in fruit_data_items if f.name in first_category_fruits]
fruits_list_adapter = \
FruitsListAdapter(data=first_category_fruit_data_items,
args_converter=list_item_args_converter,
selection_mode='single',
allow_empty_selection=False,
cls=ListItemButton)
fruit_categories_list_adapter.bind(
on_selection_change=fruits_list_adapter.fruit_category_changed)
fruits_list_view = \
ListView(adapter=fruits_list_adapter, size_hint=(.2, 1.0))
self.add_widget(fruits_list_view)
# Detail view, for a given fruit, on the right:
#
detail_view = FruitDetailView(
fruit_name=fruits_list_adapter.selection[0].text,
size_hint=(.6, 1.0))
fruits_list_adapter.bind(on_selection_change=detail_view.fruit_changed)
self.add_widget(detail_view)
def __init__(self, **kwargs):
kwargs['cols'] = 3
super(CascadingView, self).__init__(**kwargs)
list_item_args_converter = \
lambda row_index, selectable: {'text': selectable.name,
'size_hint_y': None,
'height': 25}
# Add a fruit categories list on the left. We use ListAdapter, for
# which we set the data argument to the list of CategoryItem
# instances from above. The args_converter only pulls the name
# property from these instances, adding also size_hint_y and height.
# selection_mode is single, because this list will "drive" the second
# list defined below. allow_empty_selection is False, because we
# always want a selected category, so that the second list will be
# populated. Finally, we instruct ListAdapter to build list item views
# using the provided cls, ListItemButton.
#
fruit_categories_list_adapter = \
ListAdapter(data=category_data_items,
args_converter=list_item_args_converter,
selection_mode='single',
allow_empty_selection=False,
cls=ListItemButton)
fruit_categories_list_view = \
ListView(adapter=fruit_categories_list_adapter,
size_hint=(.2, 1.0))
self.add_widget(fruit_categories_list_view)
# Fruits, for a given category, are in a list in the middle, which
# uses FruitsListsAdapter, defined above. FruitsListAdapter has a
# fruit_changed() method that updates the data list. The binding
# to the fruit_categories_list_adapter is set up after
# instantiation of the fruit_list_adapter.
#
first_category_fruits = \
fruit_categories[list(fruit_categories.keys())[0]]['fruits']
first_category_fruit_data_items = \
[f for f in fruit_data_items if f.name in first_category_fruits]
fruits_list_adapter = \
FruitsListAdapter(data=first_category_fruit_data_items,
args_converter=list_item_args_converter,
selection_mode='single',
allow_empty_selection=False,
cls=ListItemButton)
fruit_categories_list_adapter.bind(
on_selection_change=fruits_list_adapter.fruit_category_changed)
fruits_list_view = \
ListView(adapter=fruits_list_adapter, size_hint=(.2, 1.0))
self.add_widget(fruits_list_view)
# Detail view, for a given fruit, on the right:
#
detail_view = FruitDetailView(
fruit_name=fruits_list_adapter.selection[0].text,
size_hint=(.6, 1.0))
fruits_list_adapter.bind(
on_selection_change=detail_view.fruit_changed)
self.add_widget(detail_view)