class AlexLabelTest(AbstractComponentTest):
def __init__(self):
super().__init__()
self.name = "Alex label test"
def test_component(self, master, message_label):
self.message_label = message_label
self.master = master
self.label1 = AlexLabel(master)
self.label1.set('Label text:')
self.label1.grid(row=0, column=0)
self.entry1 = AlexEntry(master)
self.entry1.set("Enter label text")
self.entry1.grid(row=0, column=1)
AlexButton(master, text='Set label text',
command=self._set_label_text).grid(row=1, column=0)
AlexButton(master,
text='Set entry from label',
command=self._set_entry_from_label).grid(row=1, column=1)
def _set_label_text(self):
self.label1.set(self.entry1.get())
self.entry1.set('')
def _set_entry_from_label(self):
self.entry1.set(self.label1.get())
class AbstractInputDialog:
'''
A basic dialog skeleton for input dialogs. For simple
message dialogs use the native dialogs of tkinter.
This provides a rather simple framework for fast creating
dialogs that return user input to the calling component.
The framework works like this:
- Make a subclass of this class
- Overwrite the create_dialog method. You need to
call the method in this superclass to provide you
with the basic frames in the dialog window.
Add your input stuff to the interior frame and
your buttons to the button_frame (there are methods
to help you for this)
- Make a subclass of the AbstractInputDialogPresenter
- Create action methods in the presenter that
are bound to the buttons in the dialog window
- The actions that are considered to close the
dialog must set the return_value property of
the view. This will close the dialog window and
return the return_value to the caller of activate
- Inject the dialog presenter into the dialog
- Inject the dialog into your component that wants to
use it
- Call the activate method in the dialog in your
component. You need to set a callback for your
value. This callback will be executed with a value
when the presenter closes the dialog window
'''
def __init__(self, window_manager, presenter):
self.window_manager = window_manager
self.presenter = presenter
self.window = None
self.callback = None
def create_dialog(self):
'''
Extend this method in your child class. It already
provides three frames: interior, buttons_frame and
errormessage. The errormessage frame already has
a label that may be read and set by the errormessage
property.
To set default buttons in the button_frame, use the
set default buttons.
Other buttons may be set through the add_button method.
'''
self.window = self.window_manager.create_new_window()
self.window.protocol("WM_DELETE_WINDOW",
lambda: self._set_return_value(None))
self.window.transient()
self.window.attributes('-topmost', True)
self.window.withdraw()
self.interior = Frame(self.window)
self.interior.pack()
self.buttons_frame = Frame(self.window)
self.buttons_frame.pack()
self.message_frame = Frame(self.window)
self.message_frame.pack()
self._errormessage = AlexLabel(self.message_frame)
self._errormessage.pack(side=TOP)
def add_button(self, label, callback):
'''
Fast setup method for buttons. Just provide
a label and a callback and a button will be
appended to the button_frame
'''
button = AlexButton(self.buttons_frame, command=callback)
button.set(label)
button.pack(side=LEFT, padx=5, pady=5)
return button
def set_default_buttons(self):
'''
This method may be used in child classes
to set the default buttons OK and Cancel
'''
self.add_button(_('OK'), self.presenter.ok_action)
self.add_button(_('Cancel'), self.presenter.cancel_action)
def _get_errormessage(self):
message = self._errormessage.get()
if message == '':
return None
else:
return message
def _set_errormessage(self, message):
if message == None:
self._errormessage.set('')
else:
self._errormessage.set(message)
def activate(self, callback, **kw):
'''
'''
if self.window is None:
self.create_dialog()
self.config_dialog(**kw)
if self.window is None:
callback(None)
return
self.callback = callback
self.presenter.view = self
self.window.deiconify()
self.window.grab_set()
def config_dialog(self, **kw):
pass
def _set_return_value(self, value):
self.window.grab_release()
self.window.withdraw()
self.callback(value)
return_value = property(None, _set_return_value)
errormessage = property(_get_errormessage, _set_errormessage)
