This commit is contained in:
yumoqing 2022-01-30 10:28:05 +08:00
parent 86b9991cde
commit 32f8f4bc64

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kivyblocks/hierarchy.py Normal file
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import traceback
from kivy.clock import Clock
from kivy.factory import Factory
from kivy.properties import ListProperty, BooleanProperty, \
StringProperty, DictProperty, NumericProperty
from kivy.uix.treeview import TreeView, TreeViewNode, TreeViewLabel
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.image import AsyncImage
from .threadcall import HttpClient
from .scrollpanel import ScrollPanel
from .clickable import SingleCheckBox
from .baseWidget import Text
from .utils import CSize
class TreeViewComplexNode(BoxLayout, TreeViewLabel):
otext = StringProperty(None)
checkbox = BooleanProperty(False)
icon = StringProperty(None)
data = DictProperty(None)
def __init__(self, **kw):
super(TreeViewComplexNode, self).__init__(**kw)
self.orientation = 'horizontal'
self.size_hint_x = None
if self.checkbox:
cb = SingleCheckBox(size_hint=(None,None))
cb.bind(on_press=self.set_checked)
self.add_widget(cb)
if self.icon:
img = AsyncImage(source=self.icon, size_hint=(None,None))
img.size = CSize(1,1)
self.add_widget(img)
txt = Text(otext=self.otext, i18n=True)
txt.texture_update()
txt.size_hint = (None, None)
txt.size = txt.texture_size
self.add_widget(txt)
def set_checked(self, o):
if not self.data:
return
if o.state():
self.data['checked'] = True
else:
self.data['checked'] = False
class Hierarchy(ScrollPanel):
url = StringProperty(None)
params = DictProperty(None)
method = StringProperty('get')
idField = StringProperty(None)
textField = StringProperty(None)
data = ListProperty(None)
checkbox = BooleanProperty(False)
icon = StringProperty(None)
single_expand = BooleanProperty(False)
def __init__(self, **kw):
self.register_event_type('on_press')
self.tree = TreeView(hide_root=True)
self.tree.size_hint = (None, None)
self.tree.bind(on_node_expand=self.check_load_subnodes)
self.tree.bind(selected_node=self.node_selected)
super(Hierarchy, self).__init__(inner=self.tree, **kw)
if self.url:
self.data = self.get_remote_data()
def on_press(self, node):
print('selected node=', node)
def node_selected(self, o, v):
if self.tree.selected_node:
self.dispatch('on_press', o.selected_node)
def collapse_others(self, node):
for n in self.tree.iterate_open_nodes(node=node.parent_node):
if n != node and n !=node.parent_node and n.is_open:
self.tree.toggle_node(n)
def check_load_subnodes(self, treeview, node):
if self.single_expand:
self.collapse_others(node)
if node.is_loaded:
return
if not self.url:
node.is_loaded = True
return
data = self.get_remote_data(node)
for d in data:
self.create_new_node(d, node)
node.is_loaded = True
def create_new_node(self, data, node=None):
n = TreeViewComplexNode(otext=data[self.textField],
checkbox=self.checkbox,
icon=data.get('icon') or self.icon
)
n.data = data
n.width = self.tree.indent_start + \
self.tree.indent_level * n.level \
+ sum([i.width for i in n.children])
if node:
self.tree.add_node(n, node)
else:
self.tree.add_node(n)
children = data.get('children')
if not children:
return
for c in children:
self.create_new_node(c, n)
n.is_loaded = True
def get_remote_data(self, node=None):
if not self.url:
return
hc = HttpClient()
params = self.params.copy() if self.params else {}
if node:
params['id'] = node.data[self.idField]
print('params=', params)
d = hc(self.url, method=self.method, params=params)
if isinstance(d, list):
return d
if isinstance(d, dict):
return d['rows']
return None
def on_data(self, o, d=None):
if not self.data:
return
for d in self.data:
self.create_new_node(d)
class Menu(Hierarchy):
target = StringProperty(None)
def __init__(self, **kw):
self.target_w = None
super(Menu, self).__init__(**kw)
def on_press(self, node):
self.tree.deselect_node()
data = {}
dw = node.data.get('datawidget')
if dw:
data_widget = Factory.Blocks.getWidgetById(dw)
if data_widget:
vn = node.data.get('datamethod', 'getValue')
if hasattr(data_widget, vn):
f = getattr(data_widget, vn)
data = f()
if not isinstance(data, dict):
data = {}
url = node.data.get('url')
target = Factory.Blocks.getWidgetById(node.data.get('target',self.target),self)
if url:
params = node.data.get('params',{})
params.update(data)
blocks = Factory.Blocks()
desc = {
"widgettype":"urlwidget",
"options":{
"url":url,
"params":params
}
}
w = blocks.widgetBuild(desc)
if w and target:
target.add_widget(w)
return
rfname = node.data.get('rfname')
if rfname:
f = getRegisterFunctionByName(rfname)
if f:
f(self, **data)
return
script = node.data.get('script')
if script:
target_name = node.data.get('target', self.target)
target = Factory.Blocks.getWidgetById(target_name, self)
data.update({'self':target})
if target:
eval(script,data)
return
Factory.register('Hierarchy', Hierarchy)
Factory.register('Menu', Menu)