def build(source_key, color_scheme, alternatives):
key_sequence = []
for i, label in enumerate(alternatives):
key = RectKey("_alternative" + str(i))
key.type = KeyCommon.CHAR_TYPE
key.labels = {0: label}
key.code = label[0]
key_sequence.append(key)
return LayoutBuilderKeySequence.build(source_key, color_scheme,
key_sequence)
def build(source_key, color_scheme, alternatives):
key_sequence = []
for i, label in enumerate(alternatives):
key = RectKey("_alternative" + str(i))
key.type = KeyCommon.CHAR_TYPE
key.labels = {0: label}
key.code = label[0]
key_sequence.append(key)
return LayoutBuilderKeySequence.build(source_key, color_scheme,
key_sequence)
def _layout_sequence(sequence):
"""
Split sequence into lines.
"""
max_columns = LayoutBuilderAlternatives.MAX_KEY_COLUMNS
min_columns = max_columns // 2
add_close = False
fill_gaps = True
# find the number of columns with the best packing,
# i.e. the least number of empty slots.
n = len(sequence)
if add_close:
n += 1 # +1 for close button
max_mod = 0
ncolumns = max_columns
for i in range(max_columns, min_columns, -1):
m = n % i
if m == 0:
max_mod = m
ncolumns = i
break
if max_mod < m:
max_mod = m
ncolumns = i
# limit to len for the single row case
ncolumns = min(n, ncolumns)
# cut the input into lines of the newly found optimal length
lines = []
line = []
column = 0
for item in sequence:
line.append(item)
column += 1
if column >= ncolumns:
lines.append(line)
line = []
column = 0
# append close button
if add_close:
n = len(line)
line.extend([None]*(ncolumns - (n+1)))
key = RectKey("_close_")
key.labels = {}
key.image_filenames = {ImageSlot.NORMAL : "close.svg"}
key.type = KeyCommon.BUTTON_TYPE
line.append(key)
# fill empty slots with dummy buttons
if fill_gaps:
n = len(line)
if n:
for i in range(ncolumns - n):
key = RectKey("_dummy_")
key.sensitive = False
line.append(key)
if line:
lines.append(line)
return lines, ncolumns
def _layout_sequence(sequence):
"""
Split sequence into lines.
"""
max_columns = LayoutBuilderAlternatives.MAX_KEY_COLUMNS
min_columns = max_columns // 2
add_close = False
fill_gaps = True
# find the number of columns with the best packing,
# i.e. the least number of empty slots.
n = len(sequence)
if add_close:
n += 1 # +1 for close button
max_mod = 0
ncolumns = max_columns
for i in range(max_columns, min_columns, -1):
m = n % i
if m == 0:
max_mod = m
ncolumns = i
break
if max_mod < m:
max_mod = m
ncolumns = i
# limit to len for the single row case
ncolumns = min(n, ncolumns)
# cut the input into lines of the newly found optimal length
lines = []
line = []
column = 0
for item in sequence:
line.append(item)
column += 1
if column >= ncolumns:
lines.append(line)
line = []
column = 0
# append close button
if add_close:
n = len(line)
line.extend([None] * (ncolumns - (n + 1)))
key = RectKey("_close_")
key.labels = {}
key.image_filenames = {ImageSlot.NORMAL: "close.svg"}
key.type = KeyCommon.BUTTON_TYPE
line.append(key)
# fill empty slots with dummy buttons
if fill_gaps:
n = len(line)
if n:
for i in range(ncolumns - n):
key = RectKey("_dummy_")
key.sensitive = False
line.append(key)
if line:
lines.append(line)
return lines, ncolumns
