Kivy TreeView with checkbox and editable text
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Shay Sanbata
Oct 17, 2018, 8:43:15 AM10/17/18
to Kivy users support
Hi,
How can i add to kivy TreeView a checkbox or editable text to each child on same line.
The idea is to have a check-list
app with comments
Walmir Paiva
Oct 18, 2018, 9:20:22 AM10/18/18
to Kivy users support
Hi,
Small example of how I solved this question:
# -*- coding: utf-8 -*-
from kivy.app import App
from kivy.properties import StringProperty, ObjectProperty, DictProperty, NumericProperty
from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.popup import Popup
from kivy.uix.treeview import TreeViewNode
from kivy.clock import mainthread
import collections
Builder.load_string('''
#:import Window kivy.core.window.Window
<ChooseBdi>:
auto_dismiss: False
size: Window.size
size_hint: None, None
title: 'BDI Diferenciado'
tv_proj_bdi: tv_proj_bdi_id
BoxLayout:
orientation: 'vertical'
pading: 5
spacing: 5
BoxLayout:
orientation: 'horizontal'
size_hint: 1,0.05
Button:
size_hint_x: None
size_x: 40
text: 'Fechar'
on_press: root.dismiss()
GridLayout:
cols: 3
rows:1
size_hint_y: None
height: self.minimum_height
spacing: [1,1]
padding: [1,1]
CelHeaderChooseBdi:
text: ''
CelHeaderChooseBdi:
text: 'BDI Calculado (%)'
size_hint_x: None
width: 150
CelHeaderChooseBdi:
text: 'BDI Informado (%)'
size_hint_x: None
width: 150
ScrollView :
id: scrollviewbdi1
do_scroll_x: False
size_hint: 1,0.90
Scatter:
do_rotation: False
do_scale: False
do_translation: False
size: tv_proj_bdi_id.size
size_hint_y: None
TreeView:
id: tv_proj_bdi_id
hide_root: False
size_hint_y: None
width: scrollviewbdi1.width
height: self.minimum_height
indent_level: 0
<LblRowbdi1@Label>:
font_size: '12sp'
size_hint: None,None
text_size: self.size
valign: 'center'
<TxtInputTxBdi@TextInput>:
background_normal:''
background_color: [1,1,1,1]
color: [0,0,0,1]
multiline: False
font_size: '12sp'
size_hint: None, None
size: 100, 27
text_size: self.size
<CelHeaderChooseBdi@Button>:
background_normal:''
background_color: [.9,.9,.9,1]
color: [0,0,0,1]
size_hint_y: None
height: 30
text_size: self.size
halign: 'center'
valign: 'center'
<TreeViewTitleRow>:
height: desctvbdi_id.height
GridLayout:
cols: 5
size_hint_y: None
height: self.minimum_height
LblRowbdi1:
text: root.item if root.item != None else ''
width: 80
font_size: '14sp'
height: desctvbdi_id.height
LblRowbdi1:
id: desctvbdi_id
text: root.descr if root.descr != None else ''
width: 350
font_size: '14sp'
height: self.texture_size[1]
<TreeViewProjRow>:
height: descbdi_id.height
GridLayout:
cols: 7
size_hint_y: None
height: self.minimum_height
LblRowbdi1:
text: root.item if root.item != None else ''
width: 80
height: descbdi_id.height
LblRowbdi1:
id: descbdi_id
text: root.descr if root.descr != None else ''
size_hint_x: 1
height: 30 if self.texture_size[1]<30 else self.texture_size[1]
LblRowbdi1:
text: root.unit if root.unit != None else ''
width: 60
height: descbdi_id.height
CheckBox:
id: chbox_tx_calc_id
size_hint_x: None
width: 50
group: root.id_group_bdi
on_active: root.check_active_tax_calc(*args)
TxtInputTxBdi:
text: root.txbdi_calc if root.txbdi_calc != None else ''
readonly: True
CheckBox:
id:chbox_tx_info_id
size_hint_x: None
width: 50
group: root.id_group_bdi
on_active: root.check_active_tax_info(*args)
TxtInputTxBdi:
text: root.txbdi_inf if root.txbdi_inf != None else ''
on_text: root.txbdi_inf = self.text
on_text: if self.focus: root.update_db()
''')
class ChooseBdi(Popup):
#class for create interface to register bdi rate
dic_tv_proj_bdi = DictProperty() #dic with project data
db_bdi_apply = ObjectProperty() #database conection
def __init__(self, **kwargs):
super(ChooseBdi, self).__init__(**kwargs)
self.populate_tree_view_proj()
@mainthread
def populate_tree_view_proj(self):
#populate treeview with project data
self.tv_proj_bdi.root_options=dict(text='Projeto', font_size='16sp')
for key_plan, data in list(self.dic_tv_proj_bdi.items()):
#main node
n1 = self.tv_proj_bdi.add_node(TreeViewTitleRow(id_node=None, item=None, descr=key_plan,
is_open=True))
#nodes with project items
for key_line, data2 in list(data.items()):
ite = data2[0]
desc = data2[1]
unid = data2[2]
id_line = data2[3]
id_parent = data2[4]
txbdi_inf_confirm = data2[7]
if data2[5] == None:
txbdi_calc = ''
else:
txbdi_calc = str(data2[5]*100)
if data2[6] == None:
txbdi_inf = ''
else:
txbdi_inf = str(data2[6]*100)
if key_line[-4:] =='ln_0':
#project name node
self.tv_proj_bdi.add_node(TreeViewTitleRow(id_node=id_line, item=ite, descr=desc,
is_open=True), n1)
elif unid == None:
#titles nodes
parent_node = self.find_parent_node_proj(n1, id_parent)
self.tv_proj_bdi.add_node(TreeViewProjRow(id_node=id_line, id_group_bdi=id_line,
item=ite, descr=desc, txbdi_calc= txbdi_calc,
txbdi_inf= txbdi_inf, txbdi_inf_confirm=txbdi_inf_confirm,
root_db_bdi = self.db_bdi_apply, is_open=True), parent_node)
else:
#sub-titles nodes
parent_node = self.find_parent_node_proj(n1, id_parent)
self.tv_proj_bdi.add_node(TreeViewProjRow(id_node=id_line, id_group_bdi=id_line,
item=ite, descr=desc, unit=unid, txbdi_calc= txbdi_calc,
txbdi_inf= txbdi_inf, txbdi_inf_confirm=txbdi_inf_confirm,
root_db_bdi = self.db_bdi_apply, is_open=True), parent_node)
def find_parent_node_proj(self, n1, parent_node):
#looks for the parent node to insert into the treeview
for n in self.tv_proj_bdi.iterate_all_nodes(node = n1):
if parent_node == n.id_node:
break
return n
class TreeViewProjRow(BoxLayout, TreeViewNode):
#class for interface treeview row
id_node = ObjectProperty(None, allownone=True)
id_group_bdi = StringProperty('')
item= StringProperty('', allownone=True)
descr= StringProperty('', allownone=True)
unit= StringProperty('', allownone=True)
txbdi_calc= StringProperty('', allownone=True)
txbdi_inf = StringProperty('', allownone=True)
txbdi_inf_confirm = NumericProperty(allownone=True)
root_db_bdi = ObjectProperty() #database conection
def __init__(self, **kwargs):
super(TreeViewProjRow, self).__init__(**kwargs)
self.check_inf_confirm_status()
self.bind(txbdi_inf_confirm=self.update_db)
@mainthread
def check_inf_confirm_status(self):
#initialize checkboxes
if self.txbdi_inf_confirm == 1:
self.ids.chbox_tx_info_id.active = True
elif self.txbdi_inf_confirm == 0:
self.ids.chbox_tx_calc_id.active = True
else:
self.ids.chbox_tx_info_id.active = False
self.ids.chbox_tx_calc_id.active = False
def update_db(self, *args):
#update row in database
print('db_test')
def check_active_tax_info(self, *args):
#confirms use of bdi informed
if args[1] == True:
self.txbdi_inf_confirm = 1
self.update_child_node()
self.update_child_check_box()
else:
self.check_non_active()
def check_active_tax_calc(self, *args):
#confirms use of bdi calculated
if args[1] == True:
self.txbdi_inf_confirm = 0
self.update_child_check_box()
else:
self.check_non_active()
def check_non_active(self):
#disables propagation of information from the parent node to the child nodes, when the two checkboxes are unchecked
if self.ids.chbox_tx_info_id.active == False and self.ids.chbox_tx_calc_id.active== False:
self.txbdi_inf_confirm = None
def update_child_node(self):
#propagates information from parent to child node
for nod in self.nodes:
nod.txbdi_inf = self.txbdi_inf
nod.txbdi_inf_confirm = self.txbdi_inf_confirm
def update_child_check_box(self):
#propagates information from parent to child node
for nod in self.nodes:
nod.ids.chbox_tx_info_id.active= self.ids.chbox_tx_info_id.active
nod.ids.chbox_tx_calc_id.active= self.ids.chbox_tx_calc_id.active
class TreeViewTitleRow(BoxLayout, TreeViewNode):
#class for interface treeview row
id_node = ObjectProperty(None, allownone=True)
item= StringProperty('', allownone=True)
descr= StringProperty('', allownone=True)
def __init__(self, **kwargs):
super(TreeViewTitleRow, self).__init__(**kwargs)
class ChoiceBDIApp(App):
def build(self):
dic_bdi = collections.OrderedDict()
dic_bdi = {'Plan1': {'1_Plan1_ln_0': ['0', 'Total da Planilha: ', None, '1_Plan1_ln_0', None, 0.33878, None, None],
'1_Plan1_ln_2': ['1', 'Fundação', None, '1_Plan1_ln_2', '1_Plan1_ln_0', 0.33878, None, None], '1_Plan1_ln_3': ['1.1', 'Escavação', 'm3',
'1_Plan1_ln_3', '1_Plan1_ln_2', 0.33878, None, None], '1_Plan1_ln_4': ['1.2', 'Aço', 'kg', '1_Plan1_ln_4', '1_Plan1_ln_2', 0.33878, None, None],
'1_Plan1_ln_5': ['1.3', 'Engenheiro', 'mês', '1_Plan1_ln_5', '1_Plan1_ln_2', 0.33878, None, None]}}
ch = ChooseBdi()
ch.dic_tv_proj_bdi = dic_bdi
return ch
ChoiceBDIApp().run()
Sorry, interface in portuguese :)
Cheers
Ryan Johnson
Oct 18, 2018, 1:27:07 PM10/18/18
to kivy-...@googlegroups.com
Thanks. Nice teaching moment.
There is a typo:
BoxLayout:
orientation: 'vertical'
padding: 5
spacing: 5
Sent from Mail for Windows 10
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