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"Reimplementation of the standard extension module '_curses_panel' using cffi."
from _curses import _ensure_initialised, _check_ERR, error, ffi, lib
def _call_lib(method_name, *args):
return getattr(lib, method_name)(*args)
def _call_lib_check_ERR(method_name, *args):
return _check_ERR(_call_lib(method_name, *args), method_name)
def _mk_no_arg_no_return(method_name):
def _execute():
_ensure_initialised()
return _call_lib_check_ERR(method_name)
_execute.__name__ = method_name
return _execute
def _mk_no_arg_return_val(method_name):
def _execute():
return _call_lib(method_name)
_execute.__name__ = method_name
return _execute
def _mk_args_no_return(method_name):
def _execute(*args):
return _call_lib_check_ERR(method_name, *args)
_execute.__name__ = method_name
return _execute
# ____________________________________________________________
bottom_panel = _mk_no_arg_no_return("bottom_panel")
hide_panel = _mk_no_arg_no_return("hide_panel")
show_panel = _mk_no_arg_no_return("show_panel")
top_panel = _mk_no_arg_no_return("top_panel")
panel_hidden = _mk_no_arg_return_val("panel_hidden")
move_panel = _mk_args_no_return("move_panel")
_panels = []
def _add_panel(panel):
_panels.insert(0, panel)
def _remove_panel(panel):
_panels.remove(panel)
def _find_panel(pan):
for panel in _panels:
if panel._pan == pan:
return panel
return None
class Panel(object):
def __init__(self, pan, window):
self._pan = pan
self._window = window
_add_panel(self)
def __del__(self):
_remove_panel(self)
lib.del_panel(self._pan)
def above(self):
pan = lib.panel_above(self._pan)
if pan == ffi.NULL:
return None
return _find_panel(pan)
def below(self):
pan = lib.panel_below(self._pan)
if pan == ffi.NULL:
return None
return _find_panel(pan)
def window(self):
return self._window
def replace_panel(self, window):
panel = _find_panel(self._pan)
_check_ERR(lib.replace_panel(self._pan, window._win), "replace_panel")
panel._window = window
return None
def set_panel_userptr(self, obj):
code = lib.set_panel_userptr(self._pan, ffi.cast("void *", obj))
return _check_ERR(code, "set_panel_userptr")
def userptr(self):
# XXX: This is probably wrong.
obj = lib.panel_userptr(self._pan)
if obj == ffi.NULL:
raise error("no userptr set")
return obj
def bottom_panel():
_ensure_initialised()
pan = lib.panel_above(ffi.NULL)
if pan == ffi.NULL:
return None
return _find_panel(pan)
def new_panel(window):
pan = lib.new_panel(window._win)
return Panel(pan, window)
def panel_below():
_ensure_initialised()
pan = lib.panel_below(ffi.NULL)
if pan == ffi.NULL:
return None
return _find_panel(pan)
def update_panels():
_ensure_initialised()
lib.update_panels()
return None
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