mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-07-24 03:35:53 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

Use disabled state to enforce read-only state (bit painful since it means

Browse source 
switching states each time we insert some text but has to be done this way
since else class bindings might allow editing...)
This commit is contained in:
Guido van Rossum 1994-07-12 09:00:42 +00:00
parent 3e395be1ee
commit c618ed9868
1 changed files with 19 additions and 27 deletions
Download patch file Download diff file Expand all files Collapse all files

46
Demo/tkinter/guido/ManPage.py
View file

@ -81,7 +81,10 @@ class EditableManPage(ScrolledText):
self.ok = 0
self.empty = 0
self.buffer = None
savestate = self['state']
self['state'] = 'normal'
self.delete('1.0', 'end')
self['state'] = savestate
# End parsing -- must be busy, need not be at EOF
def _endparser(self):
@ -128,6 +131,8 @@ class EditableManPage(ScrolledText):
self.ok = 0
self.empty = 0
return
savestate = self['state']
self['state'] = 'normal'
if self.empty:
# One or more previous lines were empty
# -- insert one blank line in the text
@ -137,19 +142,19 @@ class EditableManPage(ScrolledText):
if not propline:
# No properties
self._insert_prop(textline)
self.lineno = self.lineno + 1
return
# Search for properties
p = ''
j = 0
for i in range(min(len(propline), len(textline))):
if propline[i] != p:
if j < i:
self._insert_prop(textline[j:i], p)
j = i
p = propline[i]
self._insert_prop(textline[j:])
else:
# Search for properties
p = ''
j = 0
for i in range(min(len(propline), len(textline))):
if propline[i] != p:
if j < i:
self._insert_prop(textline[j:i], p)
j = i
p = propline[i]
self._insert_prop(textline[j:])
self.lineno = self.lineno + 1
self['state'] = savestate
# Insert a string at the end, with at most one property (tag)
def _insert_prop(self, str, prop = ' '):
@ -166,21 +171,8 @@ class ReadonlyManPage(EditableManPage):
# Initialize instance
def __init__(self, master=None, cnf={}):
# Initialize base class
EditableManPage.__init__(self, master, cnf)
# Make the text readonly
self.bind('<Any-KeyPress>', self.modify_cb)
self.bind('<Return>', self.modify_cb)
self.bind('<BackSpace>', self.modify_cb)
self.bind('<Delete>', self.modify_cb)
self.bind('<Control-h>', self.modify_cb)
self.bind('<Control-d>', self.modify_cb)
self.bind('<Control-v>', self.modify_cb)
# You could override this to ring the bell, etc.
def modify_cb(self, e):
pass
EditableManPage.__init__(self, master,
(cnf, {'state': 'disabled'}))
# Alias
ManPage = ReadonlyManPage