1 说明：
=====
1.1 TraitsUI是一套建立在Traits库基础上的用户界面库。
1.2 系统将会使用TraitsUI自动生成一个界面，以供用户交互式地修改对象的trait属性。
1.3 以traits为基础、以Model-View-Controller为设计思想的TraitUI库就是实现这一理想的最佳伴侣。
1.4 TraitsUI——轻松制作用户界面：在开发科学计算程序时，我们希望快速实现一个够用的界面，让用户能够交互式的处理数据，而又不希望在界面制作上花费过多的精力。
1.5 Traits库：为python的属性增加了类型定义的功能，除此之外他还提供了5个特殊的功能：
初始化：每个traits属性都有自己的默认值。
验证：是traits属性有明确的类型定义，只有满足定义的值时才能给它赋值。
代理：traits属性值可以代理给其他对象实例的属性。
监听：是为了当traits属性发生变化时，可以运行事先指定的函数。
可视化：是拥有traits属性的对象，可以方便的生成可以编辑traits属性的界面。
2 准备：
=====
2.1 官网：
https://github.com/enthought/traitsui
https://docs.enthought.com/traitsui/2.2 安装：
pip install traits3 Helloworld：
==========
3.1 代码：
from traits.api import HasTraits
from traitsui.api import View, VGroup,Label
#定义helloworld类
class Helloworld(HasTraits):
traits_view = View(
#VGroup=HGroup
VGroup(
Label(label='Helloworld=你好世界-1'),
Label('Helloworld=你好世界-2'), #等同与上面
#只能放在下面，但是显示却在上面
#label='Helloworld=你好世界-3',
),
#窗口大小，标题名，按钮设置；
width=1000,
height=1000,
title='Helloworld',
buttons=['OK'], #Ok按钮
resizable=True, #窗口大小可调节设置
)
#实例化
demo = Helloworld()
if __name__ == '__main__':
#可视化demo：那么直接调用其configure_traits方法，系统将会使用TraitsUI自动生成一个界面
demo.configure_traits()3.2 图：
4 代码：
from traits.api import HasTraits,Delegate,Instance,Int,Str
class Parent(HasTraits):
#初始化
last_name = Str("张") #初始化
class Child(HasTraits):
age = Int
#验证
father = Instance(Parent) #定义了father属性是Parent的实例，而此时father的默认属性是None
#代理
last_name = Delegate('father') #通过Delagate为child对象创建了代理属性last_name，代理功能将使得c.last_name和c.father.last_name始终保持相同的值
#监听
def _age_changed(self,old,new):
print("Age change from %s to %s"%(old,new))
p = Parent() #实例化对象
c = Child()
#正确
c.father = p
c.last_name
#可视化
c.configure_traits()图：
5 visible_when：
===========
5.1 代码：
from traits.api import HasTraits, Str, Range, Bool, Enum
from traitsui.api import Item, Group, View, Label
class Person(HasTraits):
first_name = Str()
last_name = Str()
age = Range(0, 120)
legal_guardian = Str()
school = Str()
grade = Range(1, 12)
marital_status = Enum('single', 'married', 'divorced', 'widowed')
registered_voter = Bool(False)
military_service = Bool(False)
gen_group = Group(
Item(name='first_name'),
Item(name='last_name'),
Item(name='age'),
label='General Info',
show_border=True
)
child_group = Group(
Item(name='legal_guardian'),
Item(name='school'),
Item(name='grade'),
label='Additional Info for minors',
show_border=True,
visible_when='age < 18',
)
adult_group = Group(
Item(name='marital_status'),
Item(name='registered_voter'),
Item(name='military_service'),
label='Additional Info for adults',
show_border=True,
visible_when='age >= 18',
)
view = View(
Group(
gen_group,
'10',
Label("Using 'visible_when':"),
'10',
child_group,
adult_group
),
title='Personal Information',
resizable=True,
buttons=['OK']
)
demo = Person(
first_name="Samuel",
last_name="Johnson",
age=16
)
if __name__ == '__main__':
demo.configure_traits()5.2 图：
6 login：
======
6.1 超级简单的登录框，代码：
from traits.api import HasTraits, Str, Int
class ModelManager(HasTraits):
model_name = Str #字符串
category = Str #字符串
model_file = Str #字符串
model_number = Int #数值
if __name__ == "__main__":
model = ModelManager()
model.configure_traits()6.2 图：
7 treeeditor：
=========
7.1 代码：
from traits.api import HasTraits, Str, Regex, List, Instance
from traitsui.api import Item, View, TreeEditor, TreeNode
class Employee(HasTraits):
#name = Str('<unknown>')
name = Str()
title = Str()
phone = Regex(regex=r'\d\d\d-\d\d\d\d')
def default_title(self):
self.title = 'Senior Engineer'
class Department(HasTraits):
name = Str('<unknown>')
employees = List(Employee)
class Company(HasTraits):
name = Str('<unknown>')
departments = List(Department)
employees = List(Employee)
no_view = View()
tree_editor = TreeEditor(
nodes=[
TreeNode(
node_for=[Company],
auto_open=True,
children='',
label='name',
view=View(['name'])
),
TreeNode(
node_for=[Company],
auto_open=True,
children='departments',
label='=Departments', # constant label
view=no_view,
add=[Department],
),
TreeNode(
node_for=[Company],
auto_open=True,
children='employees',
label='=Employees', # constant label
view=no_view,
add=[Employee]
),
TreeNode(
node_for=[Department],
auto_open=True,
children='employees',
label='name', # label with Department name
view=View(['name']),
add=[Employee]
),
TreeNode(
node_for=[Employee],
auto_open=True,
label='name', # label with Employee name
view=View(['name', 'title', 'phone'])
)
]
)
class Partner(HasTraits):
name = Str('<unknown>')
company = Instance(Company)
traits_view = View(
Item(name='company', editor=tree_editor, show_label=False),
title='Company Structure',
buttons=['OK'],
resizable=True,
style='custom',
width=.3,
height=500
)
jason = Employee(name='Jason', title='Senior Engineer', phone='536-1057')
mike = Employee(name='Mike', title='Senior Engineer', phone='536-1057')
dave = Employee(name='Dave', title='Senior Developer', phone='536-1057')
martin = Employee(name='Martin', title='Senior Engineer', phone='536-1057')
duncan = Employee(name='Duncan', title='Consultant', phone='526-1057')
demo = Partner(
name='Enthought, Inc.',
company=Company(
name='Enthought',
employees=[dave, martin, duncan, jason, mike],
departments=[
Department(
name='Business',
employees=[jason, mike]
),
Department(
name='Scientific',
employees=[dave, martin, duncan]
)
]
)
)
if __name__ == '__main__':
demo.configure_traits()7.2 图：
8 codeeditor：
==========
8.1 代码：
from traits.api import HasTraits, Code
from traitsui.api import Item, Group, View
class CodeEditorDemo(HasTraits):
code_sample = Code('import sys\n\nsys.print("hello world!")')
code_group = Group(
Item('code_sample', style='simple', label='Simple'),
Item('_'),
Item('code_sample', style='custom', label='Custom'),
Item('_'),
Item('code_sample', style='text', label='Text'),
Item('_'),
Item('code_sample', style='readonly', label='ReadOnly')
)
traits_view = View(
code_group,
#窗口标题名。大小，按钮ok
title='CodeEditor',
width=600,
height=600,
buttons=['OK']
)
demo = CodeEditorDemo()
if __name__ == "__main__":
demo.configure_traits()8.2 图：
===超级简单，简化GUI的布局===
自己整理并分享出来。
喜欢的人，请点赞、关注、评论、转发和收藏。
