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display: Make hd44780 glyphs configurable

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Allow the 20x4 hd44780 screen glyphs to be customizable from the
config file.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2020-06-08 22:04:24 -04:00
parent 1a7e4e51b3
commit 7713986ae1
6 changed files with 179 additions and 115 deletions
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33
klippy/extras/display/display.py
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@@ -104,6 +104,18 @@ class PrinterLCD:
self.screen_update_timer = self.reactor.register_timer(
self.screen_update_event)
# Configurable display
def _parse_glyph(self, config, glyph_name, data, width, height):
glyph_data = []
for line in data.split('\n'):
line = line.strip().replace('.', '0').replace('*', '1')
if not line:
continue
if len(line) != width or line.replace('0', '').replace('1', ''):
raise config.error("Invalid glyph line in %s" % (glyph_name,))
glyph_data.append(int(line, 2))
if len(glyph_data) != height:
raise config.error("Glyph %s incorrect lines" % (glyph_name,))
return glyph_data
def load_config(self, config):
# Load default display config file
pconfig = self.printer.lookup_object('configfile')
@@ -145,18 +157,15 @@ class PrinterLCD:
if c.get_name() not in dg_main_names]
for dg in dg_main + dg_def:
glyph_name = dg.get_name()[len(dg_prefix):]
glyph_data = []
for line in dg.get('data').split('\n'):
line = line.strip().replace('.', '0').replace('*', '1')
if not line:
continue
if len(line) != 16 or line.replace('0', '').replace('1', ''):
raise config.error("Invalid glyph line in %s"
% (glyph_name,))
glyph_data.append(int(line, 2))
if len(glyph_data) != 16:
raise config.error("Glyph %s must be 16 lines" % (glyph_name,))
icons[glyph_name] = glyph_data
data = dg.get('data', None)
if data is not None:
idata = self._parse_glyph(config, glyph_name, data, 16, 16)
icons.setdefault(glyph_name, {})['icon16x16'] = idata
data = dg.get('hd44780_data', None)
if data is not None:
slot = dg.getint('hd44780_slot', minval=0, maxval=7)
idata = self._parse_glyph(config, glyph_name, data, 5, 8)
icons.setdefault(glyph_name, {})['icon5x8'] = (slot, idata)
self.lcd_chip.set_glyphs(icons)
# Initialization
def handle_ready(self):