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raster.py: ASCII code hints for the opcodes

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Philipp Klaus
2016-11-10 10:05:32 +01:00
parent 7ea82644eb
commit 27f8c712bb
1 changed files with 12 additions and 12 deletions
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brother_ql/raster.py
+12 -12
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@@ -62,11 +62,11 @@ class BrotherQLRaster(object):
def add_initialize(self):
self.page_number = 0
self.data += b'\x1B\x40' # init
self.data += b'\x1B\x40' # ESC @
def add_status_information(self):
""" Status Information Request """
self.data += b'\x1B\x69\x53'
self.data += b'\x1B\x69\x53' # ESC i S
def add_switch_mode(self):
"""
@@ -77,7 +77,7 @@ class BrotherQLRaster(object):
if self.model not in modesetting:
self.unsupported("Trying to switch the operating mode on a printer that doesn't support the command.")
return
self.data += b'\x1B\x69\x61\x01'
self.data += b'\x1B\x69\x61\x01' # ESC i a
def add_invalidate(self):
""" clear command buffer """
@@ -112,7 +112,7 @@ class BrotherQLRaster(object):
self._pquality = bool(value)
def add_media_and_quality(self, rnumber):
self.data += b'\x1B\x69\x7A'
self.data += b'\x1B\x69\x7A' # ESC i z
valid_flags = 0x80
valid_flags |= (self._mtype is not None) << 1
valid_flags |= (self._mwidth is not None) << 2
@@ -130,28 +130,28 @@ class BrotherQLRaster(object):
if self.model not in cuttingsupport:
self.unsupported("Trying to call add_autocut with a printer that doesn't support it")
return
self.data += b'\x1B\x69\x4D'
self.data += b'\x1B\x69\x4D' # ESC i M
self.data += bytes([autocut << 6])
def add_cut_every(self, n=1):
if self.model not in cuttingsupport:
self.unsupported("Trying to call add_cut_every with a printer that doesn't support it")
return
self.data += b'\x1B\x69\x41'
self.data += b'\x1B\x69\x41' # ESC i A
self.data += bytes([n & 0xFF])
def add_expanded_mode(self):
if self.model not in expandedmode:
self.unsupported("Trying to set expanded mode (dpi/cutting at end) on a printer that doesn't support it")
return
self.data += b'\x1B\x69\x4B'
self.data += b'\x1B\x69\x4B' # ESC i K
flags = 0x00
flags |= self.cut_at_end << 3
flags |= self.dpi_600 << 6
self.data += bytes([flags])
def add_margins(self, dots=0x23):
self.data += b'\x1B\x69\x64'
self.data += b'\x1B\x69\x64' # ESC i d
self.data += struct.pack('<H', dots)
def add_compression(self, compression=True):
@@ -159,7 +159,7 @@ class BrotherQLRaster(object):
self.unsupported("Trying to set compression on a printer that doesn't support it")
return
self._compression = compression
self.data += b'\x4D'
self.data += b'\x4D' # M
self.data += bytes([compression << 1])
def get_pixel_width(self):
@@ -177,7 +177,7 @@ class BrotherQLRaster(object):
fmt = 'Wrong pixel width: {}, expected {}'
raise BrotherQLRasterError(fmt.format(np_array.shape[0], self.get_pixel_width()))
for row in np_array:
self.data += b'\x67\x00'
self.data += b'\x67\x00' # g 0x00
row = bytes(np.packbits(row))
if self._compression:
row = packbits.encode(row)
@@ -186,6 +186,6 @@ class BrotherQLRaster(object):
def add_print(self, last_page=True):
if last_page:
self.data += b'\x1A'
self.data += b'\x1A' # 0x1A = ^Z = SUB; here: EOF = End of File
else:
self.data += b'\x0C'
self.data += b'\x0C' # 0x0C = FF = Form Feed