Initial revision
diff --git a/Lib/plat-irix5/flp.py b/Lib/plat-irix5/flp.py
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+#
+# flp - Module to load fl forms from fd files
+#
+# Jack Jansen, December 1991
+#
+import string
+import path
+import sys
+import fl
+import FL
+
+SPLITLINE = '--------------------'
+FORMLINE = '=============== FORM ==============='
+ENDLINE = '=============================='
+
+error = 'flp.error'
+
+##################################################################
+# Part 1 - The parsing routines #
+##################################################################
+
+#
+# Externally visible function. Load form.
+#
+def parse_form(filename, formname):
+ fp = _open_formfile(filename)
+ nforms = _parse_fd_header(fp)
+ for i in range(nforms):
+ form = _parse_fd_form(fp, formname)
+ if form <> None:
+ return form
+ raise error, 'No such form in fd file'
+
+#
+# Externally visible function. Load all forms.
+#
+def parse_forms(filename):
+ fp = _open_formfile(filename)
+ nforms = _parse_fd_header(fp)
+ forms = {}
+ for i in range(nforms):
+ form = _parse_fd_form(fp, None)
+ forms[form[0].Name] = form
+ return forms
+
+#
+# Internal: Locate form file (using PYTHONPATH) and open file
+#
+def _open_formfile(filename):
+ if filename[-3:] <> '.fd':
+ filename = filename + '.fd'
+ if filename[0] = '/':
+ try:
+ fp = open(filename,'r')
+ except RuntimeError: #BCOMPAT
+ fp = None
+ except IOError:
+ fp = None
+ else:
+ for pc in sys.path:
+ pn = path.join(pc, filename)
+ try:
+ fp = open(pn, 'r')
+ break
+ except RuntimeError: #BCOMPAT
+ fp = None
+ except IOError:
+ fp = None
+ if fp = None:
+ raise error, 'Cannot find forms file ' + filename
+ return fp
+
+#
+# Internal: parse the fd file header, return number of forms
+#
+def _parse_fd_header(file):
+ # First read the magic header line
+ datum = _parse_1_line(file)
+ if datum <> ('Magic', 12321):
+ raise error, 'Not a forms definition file'
+ # Now skip until we know number of forms
+ while 1:
+ datum = _parse_1_line(file)
+ if type(datum) = type(()) and datum[0] = 'Numberofforms':
+ break
+ return datum[1]
+#
+# Internal: parse fd form, or skip if name doesn't match.
+# the special value None means 'allways parse it'.
+#
+def _parse_fd_form(file, name):
+ datum = _parse_1_line(file)
+ if datum <> FORMLINE:
+ raise error, 'Missing === FORM === line'
+ form = _parse_object(file)
+ if form.Name = name or name = None:
+ objs = []
+ for j in range(form.Numberofobjects):
+ obj = _parse_object(file)
+ objs.append(obj)
+ return (form, objs)
+ else:
+ for j in range(form.Numberofobjects):
+ _skip_object(file)
+ return None
+
+#
+# Internal class: a convient place to store object info fields
+#
+class _newobj():
+ def init(self):
+ return self
+ def add(self, (name, value)):
+ cmd = 'self.'+name+' = '+`value`+'\n'
+ exec(cmd)
+
+#
+# Internal parsing routines.
+#
+def _parse_string(str):
+ return string.strip(str)
+
+def _parse_num(str):
+ return eval(string.strip(str))
+
+def _parse_numlist(str):
+ slist = string.split(str)
+ nlist = []
+ for i in slist:
+ nlist.append(_parse_num(i))
+ return nlist
+
+# This dictionary maps item names to parsing routines.
+# If no routine is given '_parse_num' is default.
+_parse_func = { \
+ 'Name': _parse_string, \
+ 'Box': _parse_numlist, \
+ 'Colors': _parse_numlist, \
+ 'Label': _parse_string, \
+ 'Name': _parse_string, \
+ 'Callback': _parse_string, \
+ 'Argument': _parse_string }
+
+# This function parses a line, and returns either
+# a string or a tuple (name,value)
+
+def _parse_line(line):
+ try:
+ colonpos = string.index(line,':')
+ except string.index_error:
+ return string.strip(line)
+ name = line[:colonpos]
+ name = string.joinfields(string.split(name),'')
+ name = string.lower(name)
+ name = string.upper(name[0]) + name[1:]
+ value = line[colonpos+1:]
+ try:
+ pf = _parse_func[name]
+ except RuntimeError: # BCOMPAT
+ pf = _parse_num
+ except KeyError:
+ pf = _parse_num
+ value = pf(value)
+ return (name, value)
+
+def _readline(file):
+ line = file.readline()
+ if line <> '':
+ line = line[:-1]
+ return line
+
+def _parse_1_line(file):
+ line = ''
+ while line = '':
+ line = _readline(file)
+ return _parse_line(line)
+
+def _skip_object(file):
+ line = ''
+ while not line in (SPLITLINE, FORMLINE, ENDLINE):
+ pos = file.tell()
+ line = _readline(file)
+ if line = FORMLINE:
+ file.seek(pos)
+
+def _parse_object(file):
+ obj = _newobj().init()
+ while 1:
+ pos = file.tell()
+ datum = _parse_1_line(file)
+ if datum in (SPLITLINE, FORMLINE, ENDLINE):
+ if datum = FORMLINE:
+ file.seek(pos)
+ return obj
+ if type(datum) <> type(()):
+ raise error, 'Parse error, illegal line in object: '+datum
+ obj.add(datum)
+
+#################################################################
+# Part 2 - High-level object/form creation routines #
+#################################################################
+
+#
+# External - Create a form an link to an instance variable.
+#
+def create_full_form(inst, (fdata, odatalist)):
+ form = create_form(fdata)
+ exec('inst.'+fdata.Name+' = form\n')
+ for odata in odatalist:
+ create_object_instance(inst, form, odata)
+
+#
+# External - Merge a form into an existing form in an instance
+# variable.
+#
+def merge_full_form(inst, form, (fdata, odatalist)):
+ exec('inst.'+fdata.Name+' = form\n')
+ if odatalist[0].Class <> FL.BOX:
+ raise error, 'merge_full_form() expects FL.BOX as first obj'
+ for odata in odatalist[1:]:
+ create_object_instance(inst, form, odata)
+
+
+#################################################################
+# Part 3 - Low-level object/form creation routines #
+#################################################################
+
+#
+# External Create_form - Create form from parameters
+#
+def create_form(fdata):
+ return fl.make_form(FL.NO_BOX,fdata.Width, fdata.Height)
+
+#
+# External create_object - Create an object. Make sure there are
+# no callbacks. Returns the object created.
+#
+def create_object(form, odata):
+ obj = _create_object(form, odata)
+ if odata.Callback:
+ raise error, 'Creating free object with callback'
+ return obj
+#
+# External create_object_instance - Create object in an instance.
+#
+def create_object_instance(inst, form, odata):
+ obj = _create_object(form, odata)
+ if odata.Callback:
+ cbfunc = eval('inst.'+odata.Callback)
+ obj.set_call_back(cbfunc, odata.Argument)
+ if odata.Name:
+ exec('inst.' + odata.Name + ' = obj\n')
+#
+# Internal _create_object: Create the object and fill options
+#
+def _create_object(form, odata):
+ crfunc = _select_crfunc(form, odata.Class)
+ obj = crfunc(odata.Type, odata.Box[0], odata.Box[1], odata.Box[2], \
+ odata.Box[3], odata.Label)
+ if not odata.Class in (FL.BEGIN_GROUP, FL.END_GROUP):
+ obj.boxtype = odata.Boxtype
+ obj.col1 = odata.Colors[0]
+ obj.col2 = odata.Colors[1]
+ obj.align = odata.Alignment
+ obj.lstyle = odata.Style
+ obj.lsize = odata.Size
+ obj.lcol = odata.Lcol
+ return obj
+#
+# Internal crfunc: helper function that returns correct create function
+#
+def _select_crfunc(fm, cl):
+ if cl = FL.BEGIN_GROUP: return fm.bgn_group
+ elif cl = FL.END_GROUP: return fm.end_group
+ elif cl = FL.BITMAP: return fm.add_bitmap
+ elif cl = FL.BOX: return fm.add_box
+ elif cl = FL.BROWSER: return fm.add_browser
+ elif cl = FL.BUTTON: return fm.add_button
+ elif cl = FL.CHART: return fm.add_chart
+ elif cl = FL.CHOICE: return fm.add_choice
+ elif cl = FL.CLOCK: return fm.add_clock
+ elif cl = FL.COUNTER: return fm.add_counter
+ elif cl = FL.DIAL: return fm.add_dial
+ elif cl = FL.FREE: return fm.add_free
+ elif cl = FL.INPUT: return fm.add_input
+ elif cl = FL.LIGHTBUTTON: return fm.add_lightbutton
+ elif cl = FL.MENU: return fm.add_menu
+ elif cl = FL.POSITIONER: return fm.add_positioner
+ elif cl = FL.ROUNDBUTTON: return fm.add_roundbutton
+ elif cl = FL.SLIDER: return fm.add_slider
+ elif cl = FL.VALSLIDER: return fm.add_valslider
+ elif cl = FL.TEXT: return fm.add_text
+ elif cl = FL.TIMER: return fm.add_timer
+ else:
+ raise error, 'Unknown object type: ' + `cl`
+
+
+def test():
+ if len(sys.argv) == 2:
+ forms = parse_forms(sys.argv[1])
+ for i in forms.keys():
+ _printform(forms[i])
+ elif len(sys.argv) == 3:
+ form = parse_form(sys.argv[1], sys.argv[2])
+ _printform(form)
+ else:
+ print 'Usage: test fdfile [form]'
+
+def _printform(form):
+ f = form[0]
+ objs = form[1]
+ print 'Form ', f.Name, ', size: ', f.Width, f.Height, ' Nobj ', f.Numberofobjects
+ for i in objs:
+ print ' Obj ', i.Name, ' type ', i.Class, i.Type
+ print ' Box ', i.Box, ' btype ', i.Boxtype
+ print ' Label ', i.Label, ' size/style/col/align ', i.Size,i.Style, i.Lcol, i.Alignment
+ print ' cols ', i.Colors
+ print ' cback ', i.Callback, i.Argument
