67 lines
1.9 KiB
Python
67 lines
1.9 KiB
Python
from tkinter import *
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from tkinter import ttk
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root = Tk()
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root.title("Distance conversion")
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factors = { #all values are m / x
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"m" : 1,
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"cm" : 0.01,
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"mm" : 0.001,
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"km" : 1000,
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"au" : 1.496e11,
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"ly" : 9.461e15,
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"pc" : 3.086e16,
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"ft" : 0.3048,
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"yd" : 0.9144,
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"in" : 0.0254
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}
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def calculate(*args):
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try:
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value = float(entry.get())
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destUnit = 1/factors[destUnitString.get()]
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srcUnit = factors[srcUnitString.get()]
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factor = srcUnit*destUnit
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out.set(round(value*factor, 4))
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except ValueError:
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pass
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bg = PhotoImage(file="M:\Pictures\hk stream\hornet siitt.png")
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im = ttk.Label(root, image=bg)
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im.grid(column=0,row=1)
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mainframe = ttk.Frame(root, padding=(5,15,5,15))
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mainframe.grid(column=0, row=0, sticky=(N,W,E,S))
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entry = StringVar()
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entryBox = ttk.Entry(mainframe, width=8, textvariable=entry)
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entryBox.grid(column=2,row=1, sticky=(W,E))
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out = StringVar()
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ttk.Label(mainframe, textvariable=out).grid(column=2, row=2, sticky=(W,E))
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calcButton = ttk.Button(mainframe, text="Convert", command=calculate)
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calcButton.grid(column=3, row=3, sticky=W)
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srcUnitString = StringVar()
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srcUnitString.set("ft")
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srcUnitEntry = ttk.Combobox(mainframe, textvariable=(srcUnitString), values=list(factors.keys()), state="readonly")
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srcUnitEntry.grid(column=3, row=1, sticky=W)
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ttk.Label(mainframe, text="is equivalent to").grid(column=1, row=2, sticky=E)
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destUnitString = StringVar()
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destUnitString.set("m")
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destUnitEntry = ttk.Combobox(mainframe, textvariable=destUnitString, values=list(factors.keys()), state="readonly")
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destUnitEntry.grid(column=3, row=2, sticky=W)
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root.columnconfigure(0, weight=1)
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root.rowconfigure(0, weight=1)
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mainframe.columnconfigure(2, weight=1)
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for child in mainframe.winfo_children():
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child.grid_configure(padx=5, pady=5)
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entryBox.focus()
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root.bind("<Return>", lambda e: calcButton.invoke())
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root.mainloop() |