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"""A sample GUI.""" |
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from tkinter import * |
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from tkinter.ttk import * # type: ignore |
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import log |
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from . import utils |
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class Application: |
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"""A sample class.""" |
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def __init__(self): |
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log.info("Starting the application...") |
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# Configure the root window |
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self.root = Tk() |
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self.root.title("Feet to Meters") |
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self.root.minsize(400, 150) |
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# Initialize elements |
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self.feet = StringVar() |
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self.meters = StringVar() |
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frame = self.init(self.root) |
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frame.pack(fill=BOTH, expand=1) |
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# Start the event loop |
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self.root.mainloop() |
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def init(self, root): |
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padded = {'padding': 5} |
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sticky = {'sticky': NSEW} |
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# Configure grid |
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frame = Frame(root, **padded) |
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frame.rowconfigure(0, weight=1) |
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frame.rowconfigure(1, weight=1) |
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frame.columnconfigure(0, weight=1) |
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def frame_inputs(root): |
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frame = Frame(root, **padded) |
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# Configure grid |
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frame.rowconfigure(0, weight=1) |
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frame.rowconfigure(1, weight=1) |
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frame.columnconfigure(0, weight=1) |
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frame.columnconfigure(1, weight=1) |
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frame.columnconfigure(2, weight=1) |
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# Place widgets |
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entry = Entry(frame, width=7, textvariable=self.feet) |
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entry.grid(column=1, row=0) |
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entry.focus() |
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label = Label(frame, text="feet") |
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label.grid(column=2, row=0) |
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label = Label(frame, text="is equivalent to") |
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label.grid(column=0, row=1) |
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label = Label(frame, text="meters") |
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label.grid(column=2, row=1) |
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label = Label(frame, textvariable=self.meters) |
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label.grid(column=1, row=1) |
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return frame |
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def frame_commands(root): |
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frame = Frame(root, **padded) |
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# Configure grid |
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frame.rowconfigure(0, weight=1) |
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frame.columnconfigure(0, weight=1) |
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# Place widgets |
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button = Button(frame, text="Calculate", command=self.calculate) |
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button.grid(column=0, row=0) |
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self.root.bind('<Return>', self.calculate) |
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return frame |
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def separator(root): |
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return Separator(root) |
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# Place widgets |
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frame_inputs(frame).grid(row=0, **sticky) |
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separator(frame).grid(row=1, padx=10, pady=5, **sticky) |
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frame_commands(frame).grid(row=2, **sticky) |
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return frame |
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def calculate(self, event=None): |
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log.debug("Event: %s", event) |
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meters = utils.feet_to_meters(self.feet.get()) |
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if meters is not None: |
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self.meters.set(meters) |
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def main(): |
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log.init() |
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Application() |
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102
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if __name__ == '__main__': # pragma: no cover |
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main() |
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jacebrowning /
template-python-demo
