kopia lustrzana https://github.com/peterhinch/micropython-micro-gui
54 wiersze
2.0 KiB
Python
54 wiersze
2.0 KiB
Python
# dialog.py Extension to ugui providing the DialogBox class
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# Released under the MIT License (MIT). See LICENSE.
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# Copyright (c) 2021 Peter Hinch
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from gui.core.ugui import display, Window, Screen
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from gui.core.colors import *
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from gui.widgets.label import Label
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from gui.widgets.buttons import Button, CloseButton
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dolittle = lambda *_ : None
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class DialogBox(Window):
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def __init__(self, writer, row=20, col=20, *, elements, label=None,
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bgcolor=DARKGREEN, buttonwidth=25, closebutton=True, callback=dolittle, args=[]):
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def back(button, text): # Callback for normal buttons
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Window.value(text)
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callback(Window, *args)
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Screen.back()
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def backbutton(button, text):
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Window.value(text)
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callback(Window, *args)
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height = 80
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spacing = 5
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buttonwidth = max(max(writer.stringlen(e[0]) for e in elements) + 14, buttonwidth)
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buttonheight = max(writer.height, 15)
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nelements = len(elements)
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width = spacing + (buttonwidth + spacing) * nelements
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if label is not None:
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width = max(width, writer.stringlen(label) + 2 * spacing)
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super().__init__(row, col, height, width, bgcolor = bgcolor)
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col = spacing # Coordinates relative to window
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row = self.height - buttonheight - 10
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gap = 0
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if nelements > 1:
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gap = ((width - 2 * spacing) - nelements * buttonwidth) // (nelements - 1)
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if label is not None:
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r, c = self.locn(10, col)
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Label(writer, r, c, label, bgcolor = bgcolor)
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for text, color in elements:
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Button(writer, *self.locn(row, col), height = buttonheight, width = buttonwidth,
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textcolor = BLACK, bgcolor = color,
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fgcolor = color, bdcolor = color,
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text = text, shape = RECTANGLE,
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callback = back, args = (text,))
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col += buttonwidth + gap
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if closebutton:
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CloseButton(writer, callback = backbutton, args = ('Close',))
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