63 lines
1.5 KiB
Python
63 lines
1.5 KiB
Python
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# SPDX-License-Identifier: LGPL-3.0-or-later
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# Copyright (C) 2020 Daniel Thompson
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"""Haiku viewer
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~~~~~~~~~~~~~~~
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These three lines poems are fun to write and fit nicely on a tiny screen.
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If there is a file called haiku.txt in the flash filesystem then this app
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allows it to be displayed three lines at a time using the pager.
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This application also (optionally) loads an icon from the filesystem allowing
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to be customized to match whether theme your verses are based around.
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"""
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import wasp
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import icons
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import io
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import sys
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from apps.pager import PagerApp
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class HaikuApp(PagerApp):
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NAME = 'Haiku'
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def __init__(self):
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# Throw an exception if there is no poetry for us to read...
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open('haiku.txt').close()
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try:
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with open('haiku.rle', 'rb') as f:
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self.ICON = f.read()
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except:
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# Leave the default app icon if none is present
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pass
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super().__init__('')
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self._counter = -4
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def foreground(self):
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lines = []
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self._counter += 4
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with open('haiku.txt') as f:
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for i in range(self._counter):
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_ = f.readline()
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lines = [ '', ]
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for i in range(3):
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lines.append(f.readline())
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if len(lines[2]) == 0:
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self._counter = 0
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f.seek(0)
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lines = [ '', ]
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for i in range(3):
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lines.append(f.readline())
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self._msg = '\n'.join(lines)
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super().foreground()
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