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Diffstat (limited to 'Demo/cwilib/cwilib.py')
| -rwxr-xr-x | Demo/cwilib/cwilib.py | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/Demo/cwilib/cwilib.py b/Demo/cwilib/cwilib.py new file mode 100755 index 0000000..25e0622 --- /dev/null +++ b/Demo/cwilib/cwilib.py @@ -0,0 +1,226 @@ +# 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() |