def _get_pprint_size(max_lines=None, max_width=None):
"""Get the output size (number of lines and character width) for Column and
Table pformat/pprint methods.
If no value of ``max_lines`` is supplied then the height of the
screen terminal is used to set ``max_lines``. If the terminal
height cannot be determined then the default will be determined
using the ``astropy.table.conf.max_lines`` configuration item. If a
negative value of ``max_lines`` is supplied then there is no line
limit applied.
The same applies for max_width except the configuration item is
``astropy.table.conf.max_width``.
Parameters
----------
max_lines : int or None
Maximum lines of output (header + data rows)
max_width : int or None
Maximum width (characters) output
Returns
-------
max_lines, max_width : int
"""
# Declare to keep static type checker happy.
lines = None
width = None
if max_lines is None:
max_lines = conf.max_lines
if max_width is None:
max_width = conf.max_width
if max_lines is None or max_width is None:
lines, width = terminal_size()
if max_lines is None:
max_lines = lines
elif max_lines < 0:
max_lines = sys.maxsize
if max_lines < 8:
max_lines = 8
if max_width is None:
max_width = width
elif max_width < 0:
max_width = sys.maxsize
if max_width < 10:
max_width = 10
return max_lines, max_width
def test_format0(self, table_type):
"""Try getting screen size but fail to defaults because testing doesn't
have access to screen (fcntl.ioctl fails).
"""
self._setup(table_type)
arr = np.arange(4000, dtype=np.float64).reshape(100, 40)
lines = table_type(arr).pformat()
nlines, width = console.terminal_size()
assert len(lines) == nlines
for line in lines[:-1]: # skip last "Length = .. rows" line
assert width - 10 < len(line) <= width
def test_format0(self, table_type):
"""Try getting screen size but fail to defaults because testing doesn't
have access to screen (fcntl.ioctl fails).
"""
self._setup(table_type)
arr = np.arange(4000, dtype=np.float64).reshape(100, 40)
lines = table_type(arr).pformat()
nlines, width = console.terminal_size()
assert len(lines) == nlines
for line in lines[:-1]: # skip last "Length = .. rows" line
assert width - 10 < len(line) <= width
def _handle_resize(self, signum=None, frame=None):
terminal_width = terminal_size(self._file)[1]
self._bar_length = terminal_width - 37
def _handle_resize(self, signum=None, frame=None):
terminal_width = terminal_size(self._file)[1]
self._bar_length = terminal_width - 37
