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80x24 improvements, buffer improvements, ideas 

--HG--
branch : pmacs2
This commit is contained in:
moculus 2008-04-03 00:17:39 +00:00
parent 05e72dc483
commit 1e6fc685c5
3 changed files with 28 additions and 16 deletions
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5
IDEAS
View File

@ -1,3 +1,8 @@
2008/04/02:
fix read-only warnings to seem less junky (e.g. catch the buffer.ReadOnlyError
exception and write a graceful message everywhere applicable).
2008/03/18: 2008/03/18:
tie cvs/svn comands into method/shell.py for code reuse tie cvs/svn comands into method/shell.py for code reuse

34
buffer.py
View File

@ -8,6 +8,9 @@ ACT_UNDO = 1
ACT_REDO = 2 ACT_REDO = 2
STACK_LIMIT = 1024 STACK_LIMIT = 1024
class ReadOnlyError(Exception):
pass
# used for multiple text additions/deletions # used for multiple text additions/deletions
class GroupMove(object): class GroupMove(object):
def __init__(self, buffer, p, moves): def __init__(self, buffer, p, moves):
@ -260,8 +263,8 @@ class Buffer(object):
# raise Exception, "damn" # raise Exception, "damn"
llen = len(lines) llen = len(lines)
assert llen > 0 assert llen > 0
if not force: if not force and self.readonly():
assert not self.readonly(), "insert_string: buffer is read-only" raise ReadOnlyError, "buffer is read-only"
p2 = p.vadd(len(lines[-1]), llen - 1) p2 = p.vadd(len(lines[-1]), llen - 1)
if llen > 1: if llen > 1:
self.lines.insert(p.y + 1, []) self.lines.insert(p.y + 1, [])
@ -280,8 +283,8 @@ class Buffer(object):
# deletion from buffer # deletion from buffer
def delete(self, p1, p2, act=ACT_NORM, force=False): def delete(self, p1, p2, act=ACT_NORM, force=False):
"""delete characters from p1 up to p2 from the buffer""" """delete characters from p1 up to p2 from the buffer"""
if not force: if not force and self.readonly():
assert not self.readonly(), "delete_string: buffer is read-only" raise ReadOnlyError, "buffer is read-only"
self._validate_point(p1) self._validate_point(p1)
self._validate_point(p2) self._validate_point(p2)
if p1 == p2: if p1 == p2:
@ -466,7 +469,7 @@ class FileBuffer(Buffer):
return self.checksum.digest() != m.digest() return self.checksum.digest() != m.digest()
def save(self, force=False): def save(self, force=False):
if self.readonly(): if self.readonly():
raise Exception, "can't save a read-only file" raise ReadOnlyError, "can't save read-only file"
if self.checksum is not None and force is False: if self.checksum is not None and force is False:
# the file already existed and we took a checksum so make sure it's # the file already existed and we took a checksum so make sure it's
@ -694,23 +697,24 @@ class ColorDataBuffer(DataBuffer):
self.highlights['Colortext'].highlight(lines) self.highlights['Colortext'].highlight(lines)
ABOUT_DATA = ''' ABOUT_DATA = '''
[r:d:*]================================================================================ [r:d:*]===============================================================================
[y:d:*]************ ********** ****** ****** **** ******** ********* [y:d:*]************ ********** ****** ****** **** ******** *********
[y:d:*]************** ****************** ************* ********** *********** [y:d:*]************** ****************** ************* ********** ***********
[y:d:*]******* ***** ****** ***** **** **** ****** **** **** ***** **** [y:d:*]******* ***** ****** ***** **** **** ****** **** **** ***** ***
[y:d:*] *** *** *** *** *** **** **** **** ******* [y:d:*] *** *** *** *** *** **** **** **** *******
[y:d:*] *** *** *** *** *** **** **** **** ******* [y:d:*] *** *** *** *** *** **** **** **** ******
[y:d:*] ***** ***** ***** ***** **** **** ****** **** **** **** ***** [y:d:*] ***** ***** ***** ***** **** **** ****** **** **** **** ****
[y:d:*] ************ ***** ***** **** ************* ********** *********** [y:d:*] ************ ***** ***** **** ************* ********** **********
[y:d:*] ********** ***** ***** **** ****** **** ******** ********* [y:d:*] ********** ***** ***** **** ****** **** ******** ********
[y:d:*] *** [y:d:*] ***
[y:d:*] *** [c:d:*]pmacs[d:d:*] is a python-based text editor by [c:d:*]Erik Osheim[d:d:*], [b:d:*](c) 2005-2008 [y:d:*] *** [c:d:*]pmacs[d:d:*] is a python-based text editor by [c:d:*]Erik Osheim[d:d:*], [b:d:*](c) 2005-2008
[y:d:*]***** [c:d:*]pmacs[d:d:*] is available to you under the [c:d:*]GNU General Public License v2 [y:d:*]***** [c:d:*]pmacs[d:d:*] is available to you under the [c:d:*]GNU General Public License v2
[y:d:*]***** [y:d:*]*****
[y:d:*]***** [d:d:*]to see all available commands use: [c:d:*]C-c M-h [b:d:*](show-bindings-buffer) [y:d:*]***** [d:d:*]to view available commands use [c:d:*]C-c M-h [b:d:*](show-bindings-buffer)
[d:d:*] [d:d:*]open files with [c:d:*]C-x C-f[d:d:*]; save with [c:d:*]C-x C-s[d:d:*]; quit with [c:d:*]C-x C-c
[r:d:*]================================================================================ [r:d:*]===============================================================================
''' '''
class AboutBuffer(ColorDataBuffer): class AboutBuffer(ColorDataBuffer):
def __init__(self): def __init__(self):

5
method/__init__.py
View File

@ -172,7 +172,10 @@ class InsertString(Method):
self.help = "Insert %r into the current buffer." % s self.help = "Insert %r into the current buffer." % s
self.string = s self.string = s
def _execute(self, w, **vargs): def _execute(self, w, **vargs):
w.insert_string_at_cursor(self.string) try:
w.insert_string_at_cursor(self.string)
except buffer.ReadOnlyError:
w.set_error('Buffer is read-only')
class OverwriteChar(Method): class OverwriteChar(Method):
_is_method = False _is_method = False
def __init__(self, c): def __init__(self, c):