One thing that's always bugged me about Python GUIs is that they're
always so damned verbose to declare. Some way more than others. Here's
a little random thought that I freely license anyone currently
developing a GUI to run with, using the "with" statement to clean
things up. The folllowing is a simple "application" which gathers some
information in a manner similar to HTML forms.
gui = withgui.Window()
with gui.vertical:
gui.label('My awesome GUI', halign=gui.CENTER)
with gui.form:
gui.label('Name')
gui.text()
gui.help('Enter the name of your character in the game')
gui.label('Skill level')
gui.selection(['Awesome', 'Radical', 'Understated'])
gui.help('''This selection will determine the level of challenge
in the game''')
@gui.submit('Go!').on_click
def go(form):
# "form" contains the form widget
name_text = form[0].value
if error_with_data:
form[1].has_error()
success = False
if success:
gui.stop(collected_data)
@gui.cancel('No stop!').on_click
def stop(form):
gui.stop()
collected_data = gui.run()
if collected_data is not None:
...
Just in case it's not clear, gui.vertical would be a property that
generates a context manager which performs a vertical layout of the
contents. gui.form is similar except that it lays out rows with
optional label, widget contents and help (starting a new row when you
add a new label, widget or help item) and has a special gui.submit
button just like HTML form's submit button is special. gui.help would
render somehow in the GUI (could be a context-sensitive help display
under the form, or could be a clickable "?" button, or...)
The gui.vertical property return value would be callable so it could
modify the vertical box's parameters, ie. "gui.vertical(padding=8)"
When the context manager exits at the end of the "with" block the
contents are laid out.
gui.run() would open the window and invoke pyglet.app.run() - of
course there'd be alternative top-level containers which would be
usable in existing windows (with gui.show(window) and gui.hide() which
would manage events and gui.draw())
We could even lose the gui.run() line if we have a separate program
which defines a top-level Window called "gui" and invokes run() on it
and then you just execfile() the gui "app" code to fill in the details.
Richard
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