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st7920: No need to clear glyph framebuffer before programming glyphs 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2018-09-20 14:29:19 -04:00 committed by KevinOConnor
parent 7cca8d970a
commit 1379a59085
1 changed files with 4 additions and 3 deletions
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7
klippy/extras/display/st7920.py
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@ -108,18 +108,19 @@ class ST7920:
0x06, # Set positive update direction
0x0c] # Enable display and hide cursor
self.send(cmds)
self.flush()
# Setup animated glyphs
self.cache_glyph('fan1', 0)
self.cache_glyph('fan2', 1)
self.cache_glyph('bed_heat1', 2)
self.cache_glyph('bed_heat2', 3)
self.flush()
def cache_glyph(self, glyph_name, glyph_id):
icon = icons.Icons16x16[glyph_name]
for i, bits in enumerate(icon):
pos = glyph_id*32 + i*2
data = [(bits >> 8) & 0xff, bits & 0xff]
self.glyph_framebuffer[pos:pos+len(data)] = data
b1, b2 = (bits >> 8) & 0xff, bits & 0xff
self.glyph_framebuffer[pos:pos+2] = [b1, b2]
self.all_framebuffers[1][1][pos:pos+2] = [b1 ^ 1, b2 ^ 1]
self.cached_glyphs[glyph_name] = (0, glyph_id*2)
def write_text(self, x, y, data):
if x + len(data) > 16: