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# Interface to the interactive CWI library catalog.
import sys
import stdwin
from stdwinevents import *
import select
import telnetlib
import vt100win
from form import Form
# Main program
def main():
vt = vt100win.VT100win()
#
host = 'biefstuk.cwi.nl'
port = 0
timeout = 10.0
tn = telnetlib.Telnet(host, port)
tn.set_timeout(timeout)
#
try:
vt.send(tn.read_until('login: '))
tn.write('cwilib\r')
#
vt.send(tn.read_until('Hit <RETURN> to continue...'))
tn.write('\r')
#
vt.send(tn.read_until('QUIT'))
except EOFError:
sys.stderr.write('Connection closed prematurely\n')
sys.exit(1)
#
define_screens(vt)
matches = vt.which_screens()
if 'menu' not in matches:
sys.stderr.write('No main menu within %g seconds\n' % timeout)
sys.exit(1)
#
tn.set_timeout(0)
tn.write('\r\r')
vt.open('Progress -- CWI Library')
ui = UserInterface()
#
while 1:
event = stdwin.pollevent()
if not event:
rfd, wfd, xfd = select.select([stdwin, tn], [], [])
if stdwin in rfd:
event = stdwin.getevent()
if event:
type, window, detail = event
if window == None and type == WE_LOST_SEL:
window = ui.queryform.window
event = type, window, detail
if type == WE_CLOSE:
break
if window in ui.windows:
ui.dispatch(type, window, detail)
elif window == vt.window:
if type == WE_NULL:
pass
elif type == WE_COMMAND:
if detail == WC_RETURN:
tn.write('\r')
elif detail == WC_BACKSPACE:
tn.write('\b')
elif detail == WC_TAB:
tn.write('\t')
elif detail == WC_UP:
tn.write('\033[A')
elif detail == WC_DOWN:
tn.write('\033[B')
elif detail == WC_RIGHT:
tn.write('\033[C')
elif detail == WC_LEFT:
tn.write('\033[D')
else:
print '*** Command:', detail
elif type == WE_CHAR:
tn.write(detail)
elif type == WE_DRAW:
vt.draw(detail)
elif type in (WE_ACTIVATE, WE_DEACTIVATE):
pass
else:
print '*** VT100 event:', type, detail
else:
print '*** Alien event:', type, window, detail
elif tn in rfd:
vt.window.setwincursor('watch')
try:
data = tn.read_now()
except EOFError:
stdwin.message('Connection closed--goodbye')
break
print 'send...'
vt.send(data)
print 'send...done'
vt.window.setwincursor('arrow')
matches = vt.which_screens()
if 'timelimit' in matches:
stdwin.message('Time limit--goodbye')
break
print '*** Matches:', matches
else:
print '*** Weird return from select:', rfd, wfd, xfd
# Subroutine to define our screen recognition patterns
def define_screens(vt):
vt.define_screen('menu', {
'title': ('search', 0, 0, 80,
' SEARCH FUNCTIONS +OTHER FUNCTIONS '),
})
vt.define_screen('search', {
'title': ('search', 0, 0, 80, ' Search '),
})
vt.define_screen('shortlist', {'title': ('search', 0, 0, 80,
' Short-list')})
vt.define_screen('showrecord', {
'title': ('search', 0, 0, 80, ' Show record '),
})
vt.define_screen('timelimit', {
'limit': ('search', 12, 0, 80, ' TIME LIMIT '),
})
vt.define_screen('attention', {
'BASE': ('copy', 0, 0, 0, 'search'),
'title': ('search', 10, 0, 80, ' ATTENTION ')})
vt.define_screen('syntaxerror', {
'BASE': ('copy', 0, 0, 0, 'attention'),
'message': ('search', 12, 0, 80, ' Syntax error'),
})
vt.define_screen('emptyerror', {
'BASE': ('copy', 0, 0, 0, 'attention'),
'message': ('search', 12, 0, 80,
' Check your input. Search at least one term'),
})
vt.define_screen('unsortedwarning', {
'BASE': ('copy', 0, 0, 0, 'attention'),
'message': ('search', 12, 0, 80,
' Number of records exceeds sort limit'),
})
vt.define_screen('thereismore', {
'BASE': ('copy', 0, 0, 0, 'showrecord'),
'message': ('search', 15, 0, 80,
'There is more within this record. Use the arrow keys'),
})
vt.define_screen('nofurther', {
'BASE': ('copy', 0, 0, 0, 'showrecord'),
'message': ('search', 17, 0, 80, 'You cannot go further\.'),
})
vt.define_screen('nofurtherback', {
'BASE': ('copy', 0, 0, 0, 'showrecord'),
'message': ('search', 17, 0, 80,
'You cannot go further back'),
})
# Class to implement our user interface.
class UserInterface:
def __init__(self):
stdwin.setfont('7x14')
self.queryform = QueryForm()
self.listform = ListForm()
self.recordform = RecordForm()
self.forms = [self.queryform, self.listform, self.recordform]
define_query_fields(self.queryform)
self.windows = []
for form in self.forms:
if form.formheight > 0:
form.open()
self.windows.append(form.window)
def __del__(self):
self.close()
def close(self):
for form in self.forms:
form.close()
def dispatch(self, type, window, detail):
for form in self.forms:
if window == form.window:
form.dispatch(type, detail)
def define_query_fields(f):
f.define_field('name', 'Name auth./ed.', 1, 60)
f.define_field('title', 'Title', 4, 60)
f.define_field('shelfmark', 'Shelf mark', 1, 60)
f.define_field('class', 'Prim. classif.', 1, 60)
f.define_field('series', 'Series', 1, 60)
f.define_field('congress', 'Congr. pl./year', 1, 60)
f.define_field('type', 'Type', 1, 60)
class QueryForm(Form):
def __init__(self):
Form.__init__(self, 'Query form -- CWI Library')
def dispatch(self, type, detail):
if type == WE_COMMAND and detail == WC_RETURN:
print '*** SUBMIT ***'
else:
Form.dispatch(self, type, detail)
class ListForm(Form):
def __init__(self):
Form.__init__(self, 'Short list -- CWI Library')
class RecordForm(Form):
def __init__(self):
Form.__init__(self, 'Record detail -- CWI Library')
main()
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