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Commit f10b7957 authored by Fred Drake's avatar Fred Drake
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Relocating file to Lib/lib-old.

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Lib/Para.py deleted 100644 → 0
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# Text formatting abstractions
# Note -- this module is obsolete, it's too slow anyway
# Oft-used type object
Int = type(0)
# Represent a paragraph. This is a list of words with associated
# font and size information, plus indents and justification for the
# entire paragraph.
# Once the words have been added to a paragraph, it can be laid out
# for different line widths. Once laid out, it can be rendered at
# different screen locations. Once rendered, it can be queried
# for mouse hits, and parts of the text can be highlighted
class Para:
#
def __init__(self):
self.words = [] # The words
self.just = 'l' # Justification: 'l', 'r', 'lr' or 'c'
self.indent_left = self.indent_right = self.indent_hang = 0
# Final lay-out parameters, may change
self.left = self.top = self.right = self.bottom = \
self.width = self.height = self.lines = None
#
# Add a word, computing size information for it.
# Words may also be added manually by appending to self.words
# Each word should be a 7-tuple:
# (font, text, width, space, stretch, ascent, descent)
def addword(self, d, font, text, space, stretch):
if font <> None:
d.setfont(font)
width = d.textwidth(text)
ascent = d.baseline()
descent = d.lineheight() - ascent
spw = d.textwidth(' ')
space = space * spw
stretch = stretch * spw
tuple = (font, text, width, space, stretch, ascent, descent)
self.words.append(tuple)
#
# Hooks to begin and end anchors -- insert numbers in the word list!
def bgn_anchor(self, id):
self.words.append(id)
#
def end_anchor(self, id):
self.words.append(0)
#
# Return the total length (width) of the text added so far, in pixels
def getlength(self):
total = 0
for word in self.words:
if type(word) <> Int:
total = total + word[2] + word[3]
return total
#
# Tab to a given position (relative to the current left indent):
# remove all stretch, add fixed space up to the new indent.
# If the current position is already beying the tab stop,
# don't add any new space (but still remove the stretch)
def tabto(self, tab):
total = 0
as, de = 1, 0
for i in range(len(self.words)):
word = self.words[i]
if type(word) == Int: continue
(fo, te, wi, sp, st, as, de) = word
self.words[i] = (fo, te, wi, sp, 0, as, de)
total = total + wi + sp
if total < tab:
self.words.append((None, '', 0, tab-total, 0, as, de))
#
# Make a hanging tag: tab to hang, increment indent_left by hang,
# and reset indent_hang to -hang
def makehangingtag(self, hang):
self.tabto(hang)
self.indent_left = self.indent_left + hang
self.indent_hang = -hang
#
# Decide where the line breaks will be given some screen width
def layout(self, linewidth):
self.width = linewidth
height = 0
self.lines = lines = []
avail1 = self.width - self.indent_left - self.indent_right
avail = avail1 - self.indent_hang
words = self.words
i = 0
n = len(words)
lastfont = None
while i < n:
firstfont = lastfont
charcount = 0
width = 0
stretch = 0
ascent = 0
descent = 0
lsp = 0
j = i
while i < n:
word = words[i]
if type(word) == Int:
if word > 0 and width >= avail:
break
i = i+1
continue
fo, te, wi, sp, st, as, de = word
if width + wi > avail and width > 0 and wi > 0:
break
if fo <> None:
lastfont = fo
if width == 0:
firstfont = fo
charcount = charcount + len(te) + (sp > 0)
width = width + wi + sp
lsp = sp
stretch = stretch + st
lst = st
ascent = max(ascent, as)
descent = max(descent, de)
i = i+1
while i > j and type(words[i-1]) == Int and \
words[i-1] > 0: i = i-1
width = width - lsp
if i < n:
stretch = stretch - lst
else:
stretch = 0
tuple = i-j, firstfont, charcount, width, stretch, \
ascent, descent
lines.append(tuple)
height = height + ascent + descent
avail = avail1
self.height = height
#
# Call a function for all words in a line
def visit(self, wordfunc, anchorfunc):
avail1 = self.width - self.indent_left - self.indent_right
avail = avail1 - self.indent_hang
v = self.top
i = 0
for tuple in self.lines:
wordcount, firstfont, charcount, width, stretch, \
ascent, descent = tuple
h = self.left + self.indent_left
if i == 0: h = h + self.indent_hang
extra = 0
if self.just == 'r': h = h + avail - width
elif self.just == 'c': h = h + (avail - width) / 2
elif self.just == 'lr' and stretch > 0:
extra = avail - width
v2 = v + ascent + descent
for j in range(i, i+wordcount):
word = self.words[j]
if type(word) == Int:
ok = anchorfunc(self, tuple, word, \
h, v)
if ok <> None: return ok
continue
fo, te, wi, sp, st, as, de = word
if extra > 0 and stretch > 0:
ex = extra * st / stretch
extra = extra - ex
stretch = stretch - st
else:
ex = 0
h2 = h + wi + sp + ex
ok = wordfunc(self, tuple, word, h, v, \
h2, v2, (j==i), (j==i+wordcount-1))
if ok <> None: return ok
h = h2
v = v2
i = i + wordcount
avail = avail1
#
# Render a paragraph in "drawing object" d, using the rectangle
# given by (left, top, right) with an unspecified bottom.
# Return the computed bottom of the text.
def render(self, d, left, top, right):
if self.width <> right-left:
self.layout(right-left)
self.left = left
self.top = top
self.right = right
self.bottom = self.top + self.height
self.anchorid = 0
try:
self.d = d
self.visit(self.__class__._renderword, \
self.__class__._renderanchor)
finally:
self.d = None
return self.bottom
#
def _renderword(self, tuple, word, h, v, h2, v2, isfirst, islast):
if word[0] <> None: self.d.setfont(word[0])
baseline = v + tuple[5]
self.d.text((h, baseline - word[5]), word[1])
if self.anchorid > 0:
self.d.line((h, baseline+2), (h2, baseline+2))
#
def _renderanchor(self, tuple, word, h, v):
self.anchorid = word
#
# Return which anchor(s) was hit by the mouse
def hitcheck(self, mouseh, mousev):
self.mouseh = mouseh
self.mousev = mousev
self.anchorid = 0
self.hits = []
self.visit(self.__class__._hitcheckword, \
self.__class__._hitcheckanchor)
return self.hits
#
def _hitcheckword(self, tuple, word, h, v, h2, v2, isfirst, islast):
if self.anchorid > 0 and h <= self.mouseh <= h2 and \
v <= self.mousev <= v2:
self.hits.append(self.anchorid)
#
def _hitcheckanchor(self, tuple, word, h, v):
self.anchorid = word
#
# Return whether the given anchor id is present
def hasanchor(self, id):
return id in self.words or -id in self.words
#
# Extract the raw text from the word list, substituting one space
# for non-empty inter-word space, and terminating with '\n'
def extract(self):
text = ''
for w in self.words:
if type(w) <> Int:
word = w[1]
if w[3]: word = word + ' '
text = text + word
return text + '\n'
#
# Return which character position was hit by the mouse, as
# an offset in the entire text as returned by extract().
# Return None if the mouse was not in this paragraph
def whereis(self, d, mouseh, mousev):
if mousev < self.top or mousev > self.bottom:
return None
self.mouseh = mouseh
self.mousev = mousev
self.lastfont = None
self.charcount = 0
try:
self.d = d
return self.visit(self.__class__._whereisword, \
self.__class__._whereisanchor)
finally:
self.d = None
#
def _whereisword(self, tuple, word, h1, v1, h2, v2, isfirst, islast):
fo, te, wi, sp, st, as, de = word
if fo <> None: self.lastfont = fo
h = h1
if isfirst: h1 = 0
if islast: h2 = 999999
if not (v1 <= self.mousev <= v2 and h1 <= self.mouseh <= h2):
self.charcount = self.charcount + len(te) + (sp > 0)
return
if self.lastfont <> None:
self.d.setfont(self.lastfont)
cc = 0
for c in te:
cw = self.d.textwidth(c)
if self.mouseh <= h + cw/2:
return self.charcount + cc
cc = cc+1
h = h+cw
self.charcount = self.charcount + cc
if self.mouseh <= (h+h2) / 2:
return self.charcount
else:
return self.charcount + 1
#
def _whereisanchor(self, tuple, word, h, v):
pass
#
# Return screen position corresponding to position in paragraph.
# Return tuple (h, vtop, vbaseline, vbottom).
# This is more or less the inverse of whereis()
def screenpos(self, d, pos):
if pos < 0:
ascent, descent = self.lines[0][5:7]
return self.left, self.top, self.top + ascent, \
self.top + ascent + descent
self.pos = pos
self.lastfont = None
try:
self.d = d
ok = self.visit(self.__class__._screenposword, \
self.__class__._screenposanchor)
finally:
self.d = None
if ok == None:
ascent, descent = self.lines[-1][5:7]
ok = self.right, self.bottom - ascent - descent, \
self.bottom - descent, self.bottom
return ok
#
def _screenposword(self, tuple, word, h1, v1, h2, v2, isfirst, islast):
fo, te, wi, sp, st, as, de = word
if fo <> None: self.lastfont = fo
cc = len(te) + (sp > 0)
if self.pos > cc:
self.pos = self.pos - cc
return
if self.pos < cc:
self.d.setfont(self.lastfont)
h = h1 + self.d.textwidth(te[:self.pos])
else:
h = h2
ascent, descent = tuple[5:7]
return h, v1, v1+ascent, v2
#
def _screenposanchor(self, tuple, word, h, v):
pass
#
# Invert the stretch of text between pos1 and pos2.
# If pos1 is None, the beginning is implied;
# if pos2 is None, the end is implied.
# Undoes its own effect when called again with the same arguments
def invert(self, d, pos1, pos2):
if pos1 == None:
pos1 = self.left, self.top, self.top, self.top
else:
pos1 = self.screenpos(d, pos1)
if pos2 == None:
pos2 = self.right, self.bottom,self.bottom,self.bottom
else:
pos2 = self.screenpos(d, pos2)
h1, top1, baseline1, bottom1 = pos1
h2, top2, baseline2, bottom2 = pos2
if bottom1 <= top2:
d.invert((h1, top1), (self.right, bottom1))
h1 = self.left
if bottom1 < top2:
d.invert((h1, bottom1), (self.right, top2))
top1, bottom1 = top2, bottom2
d.invert((h1, top1), (h2, bottom2))
# Test class Para
# XXX This was last used on the Mac, hence the weird fonts...
def test():
import stdwin
from stdwinevents import *
words = 'The', 'quick', 'brown', 'fox', 'jumps', 'over', \
'the', 'lazy', 'dog.'
paralist = []
for just in 'l', 'r', 'lr', 'c':
p = Para()
p.just = just
p.addword(stdwin, ('New York', 'p', 12), words[0], 1, 1)
for word in words[1:-1]:
p.addword(stdwin, None, word, 1, 1)
p.addword(stdwin, None, words[-1], 2, 4)
p.addword(stdwin, ('New York', 'b', 18), 'Bye!', 0, 0)
p.addword(stdwin, ('New York', 'p', 10), 'Bye!', 0, 0)
paralist.append(p)
window = stdwin.open('Para.test()')
start = stop = selpara = None
while 1:
etype, win, detail = stdwin.getevent()
if etype == WE_CLOSE:
break
if etype == WE_SIZE:
window.change((0, 0), (1000, 1000))
if etype == WE_DRAW:
width, height = window.getwinsize()
d = None
try:
d = window.begindrawing()
d.cliprect(detail)
d.erase(detail)
v = 0
for p in paralist:
v = p.render(d, 0, v, width)
if p == selpara and \
start <> None and stop <> None:
p.invert(d, start, stop)
finally:
if d: d.close()
if etype == WE_MOUSE_DOWN:
if selpara and start <> None and stop <> None:
d = window.begindrawing()
selpara.invert(d, start, stop)
d.close()
start = stop = selpara = None
mouseh, mousev = detail[0]
for p in paralist:
start = p.whereis(stdwin, mouseh, mousev)
if start <> None:
selpara = p
break
if etype == WE_MOUSE_UP and start <> None and selpara:
mouseh, mousev = detail[0]
stop = selpara.whereis(stdwin, mouseh, mousev)
if stop == None: start = selpara = None
else:
if start > stop:
start, stop = stop, start
d = window.begindrawing()
selpara.invert(d, start, stop)
d.close()
window.close()
Lib/addpack.py deleted 100644 → 0
View file @ 1d5e80cb
# This module provides standard support for "packages".
#
# The idea is that large groups of related modules can be placed in
# their own subdirectory, which can be added to the Python search path
# in a relatively easy way.
#
# The current version takes a package name and searches the Python
# search path for a directory by that name, and if found adds it to
# the module search path (sys.path). It maintains a list of packages
# that have already been added so adding the same package many times
# is OK.
#
# It is intended to be used in a fairly stylized manner: each module
# that wants to use a particular package, say 'Foo', is supposed to
# contain the following code:
#
# from addpack import addpack
# addpack('Foo')
# <import modules from package Foo>
#
# Additional arguments, when present, provide additional places where
# to look for the package before trying sys.path (these may be either
# strings or lists/tuples of strings). Also, if the package name is a
# full pathname, first the last component is tried in the usual way,
# then the full pathname is tried last. If the package name is a
# *relative* pathname (UNIX: contains a slash but doesn't start with
# one), then nothing special is done. The packages "/foo/bar/bletch"
# and "bletch" are considered the same, but unrelated to "bar/bletch".
#
# If the algorithm finds more than one suitable subdirectory, all are
# added to the search path -- this makes it possible to override part
# of a package. The same path will not be added more than once.
#
# If no directory is found, ImportError is raised.
_packs = {} # {pack: [pathname, ...], ...}
def addpack(pack, *locations):
import os
if os.path.isabs(pack):
base = os.path.basename(pack)
else:
base = pack
if _packs.has_key(base):
return
import sys
path = []
for loc in _flatten(locations) + sys.path:
fn = os.path.join(loc, base)
if fn not in path and os.path.isdir(fn):
path.append(fn)
if pack != base and pack not in path and os.path.isdir(pack):
path.append(pack)
if not path: raise ImportError, 'package ' + pack + ' not found'
_packs[base] = path
for fn in path:
if fn not in sys.path:
sys.path.append(fn)
def _flatten(locations):
locs = []
for loc in locations:
if type(loc) == type(''):
locs.append(loc)
else:
locs = locs + _flatten(loc)
return locs
Lib/fmt.py deleted 100644 → 0
View file @ 1d5e80cb
# Text formatting abstractions
# Note -- this module is obsolete, it's too slow anyway
import string
import Para
# A formatter back-end object has one method that is called by the formatter:
# addpara(p), where p is a paragraph object. For example:
# Formatter back-end to do nothing at all with the paragraphs
class NullBackEnd:
#
def __init__(self):
pass
#
def addpara(self, p):
pass
#
def bgn_anchor(self, id):
pass
#
def end_anchor(self, id):
pass
# Formatter back-end to collect the paragraphs in a list
class SavingBackEnd(NullBackEnd):
#
def __init__(self):
self.paralist = []
#
def addpara(self, p):
self.paralist.append(p)
#
def hitcheck(self, h, v):
hits = []
for p in self.paralist:
if p.top <= v <= p.bottom:
for id in p.hitcheck(h, v):
if id not in hits:
hits.append(id)
return hits
#
def extract(self):
text = ''
for p in self.paralist:
text = text + (p.extract())
return text
#
def extractpart(self, long1, long2):
if long1 > long2: long1, long2 = long2, long1
para1, pos1 = long1
para2, pos2 = long2
text = ''
while para1 < para2:
ptext = self.paralist[para1].extract()
text = text + ptext[pos1:]
pos1 = 0
para1 = para1 + 1
ptext = self.paralist[para2].extract()
return text + ptext[pos1:pos2]
#
def whereis(self, d, h, v):
total = 0
for i in range(len(self.paralist)):
p = self.paralist[i]
result = p.whereis(d, h, v)
if result <> None:
return i, result
return None
#
def roundtowords(self, long1, long2):
i, offset = long1
text = self.paralist[i].extract()
while offset > 0 and text[offset-1] <> ' ': offset = offset-1
long1 = i, offset
#
i, offset = long2
text = self.paralist[i].extract()
n = len(text)
while offset < n-1 and text[offset] <> ' ': offset = offset+1
long2 = i, offset
#
return long1, long2
#
def roundtoparagraphs(self, long1, long2):
long1 = long1[0], 0
long2 = long2[0], len(self.paralist[long2[0]].extract())
return long1, long2
# Formatter back-end to send the text directly to the drawing object
class WritingBackEnd(NullBackEnd):
#
def __init__(self, d, width):
self.d = d
self.width = width
self.lineno = 0
#
def addpara(self, p):
self.lineno = p.render(self.d, 0, self.lineno, self.width)
# A formatter receives a stream of formatting instructions and assembles
# these into a stream of paragraphs on to a back-end. The assembly is
# parametrized by a text measurement object, which must match the output
# operations of the back-end. The back-end is responsible for splitting
# paragraphs up in lines of a given maximum width. (This is done because
# in a windowing environment, when the window size changes, there is no
# need to redo the assembly into paragraphs, but the splitting into lines
# must be done taking the new window size into account.)
# Formatter base class. Initialize it with a text measurement object,
# which is used for text measurements, and a back-end object,
# which receives the completed paragraphs. The formatting methods are:
# setfont(font)
# setleftindent(nspaces)
# setjust(type) where type is 'l', 'c', 'r', or 'lr'
# flush()
# vspace(nlines)
# needvspace(nlines)
# addword(word, nspaces)
class BaseFormatter:
#
def __init__(self, d, b):
# Drawing object used for text measurements
self.d = d
#
# BackEnd object receiving completed paragraphs
self.b = b
#
# Parameters of the formatting model
self.leftindent = 0
self.just = 'l'
self.font = None
self.blanklines = 0
#
# Parameters derived from the current font
self.space = d.textwidth(' ')
self.line = d.lineheight()
self.ascent = d.baseline()
self.descent = self.line - self.ascent
#
# Parameter derived from the default font
self.n_space = self.space
#
# Current paragraph being built
self.para = None
self.nospace = 1
#
# Font to set on the next word
self.nextfont = None
#
def newpara(self):
return Para.Para()
#
def setfont(self, font):
if font == None: return
self.font = self.nextfont = font
d = self.d
d.setfont(font)
self.space = d.textwidth(' ')
self.line = d.lineheight()
self.ascent = d.baseline()
self.descent = self.line - self.ascent
#
def setleftindent(self, nspaces):
self.leftindent = int(self.n_space * nspaces)
if self.para:
hang = self.leftindent - self.para.indent_left
if hang > 0 and self.para.getlength() <= hang:
self.para.makehangingtag(hang)
self.nospace = 1
else:
self.flush()
#
def setrightindent(self, nspaces):
self.rightindent = int(self.n_space * nspaces)
if self.para:
self.para.indent_right = self.rightindent
self.flush()
#
def setjust(self, just):
self.just = just
if self.para:
self.para.just = self.just
#
def flush(self):
if self.para:
self.b.addpara(self.para)
self.para = None
if self.font <> None:
self.d.setfont(self.font)
self.nospace = 1
#
def vspace(self, nlines):
self.flush()
if nlines > 0:
self.para = self.newpara()
tuple = None, '', 0, 0, 0, int(nlines*self.line), 0
self.para.words.append(tuple)
self.flush()
self.blanklines = self.blanklines + nlines
#
def needvspace(self, nlines):
self.flush() # Just to be sure
if nlines > self.blanklines:
self.vspace(nlines - self.blanklines)
#
def addword(self, text, space):
if self.nospace and not text:
return
self.nospace = 0
self.blanklines = 0
if not self.para:
self.para = self.newpara()
self.para.indent_left = self.leftindent
self.para.just = self.just
self.nextfont = self.font
space = int(space * self.space)
self.para.words.append(self.nextfont, text, \
self.d.textwidth(text), space, space, \
self.ascent, self.descent)
self.nextfont = None
#
def bgn_anchor(self, id):
if not self.para:
self.nospace = 0
self.addword('', 0)
self.para.bgn_anchor(id)
#
def end_anchor(self, id):
if not self.para:
self.nospace = 0
self.addword('', 0)
self.para.end_anchor(id)
# Measuring object for measuring text as viewed on a tty
class NullMeasurer:
#
def __init__(self):
pass
#
def setfont(self, font):
pass
#
def textwidth(self, text):
return len(text)
#
def lineheight(self):
return 1
#
def baseline(self):
return 0
# Drawing object for writing plain ASCII text to a file
class FileWriter:
#
def __init__(self, fp):
self.fp = fp
self.lineno, self.colno = 0, 0
#
def setfont(self, font):
pass
#
def text(self, (h, v), str):
if not str: return
if '\n' in str:
raise ValueError, 'can\'t write \\n'
while self.lineno < v:
self.fp.write('\n')
self.colno, self.lineno = 0, self.lineno + 1
while self.lineno > v:
# XXX This should never happen...
self.fp.write('\033[A') # ANSI up arrow
self.lineno = self.lineno - 1
if self.colno < h:
self.fp.write(' ' * (h - self.colno))
elif self.colno > h:
self.fp.write('\b' * (self.colno - h))
self.colno = h
self.fp.write(str)
self.colno = h + len(str)
# Formatting class to do nothing at all with the data
class NullFormatter(BaseFormatter):
#
def __init__(self):
d = NullMeasurer()
b = NullBackEnd()
BaseFormatter.__init__(self, d, b)
# Formatting class to write directly to a file
class WritingFormatter(BaseFormatter):
#
def __init__(self, fp, width):
dm = NullMeasurer()
dw = FileWriter(fp)
b = WritingBackEnd(dw, width)
BaseFormatter.__init__(self, dm, b)
self.blanklines = 1
#
# Suppress multiple blank lines
def needvspace(self, nlines):
BaseFormatter.needvspace(self, min(1, nlines))
# A "FunnyFormatter" writes ASCII text with a twist: *bold words*,
# _italic text_ and _underlined words_, and `quoted text'.
# It assumes that the fonts are 'r', 'i', 'b', 'u', 'q': (roman,
# italic, bold, underline, quote).
# Moreover, if the font is in upper case, the text is converted to
# UPPER CASE.
class FunnyFormatter(WritingFormatter):
#
def flush(self):
if self.para: finalize(self.para)
WritingFormatter.flush(self)
# Surrounds *bold words* and _italic text_ in a paragraph with
# appropriate markers, fixing the size (assuming these characters'
# width is 1).
openchar = \
{'b':'*', 'i':'_', 'u':'_', 'q':'`', 'B':'*', 'I':'_', 'U':'_', 'Q':'`'}
closechar = \
{'b':'*', 'i':'_', 'u':'_', 'q':'\'', 'B':'*', 'I':'_', 'U':'_', 'Q':'\''}
def finalize(para):
oldfont = curfont = 'r'
para.words.append(('r', '', 0, 0, 0, 0)) # temporary, deleted at end
for i in range(len(para.words)):
fo, te, wi = para.words[i][:3]
if fo <> None: curfont = fo
if curfont <> oldfont:
if closechar.has_key(oldfont):
c = closechar[oldfont]
j = i-1
while j > 0 and para.words[j][1] == '': j = j-1
fo1, te1, wi1 = para.words[j][:3]
te1 = te1 + c
wi1 = wi1 + len(c)
para.words[j] = (fo1, te1, wi1) + \
para.words[j][3:]
if openchar.has_key(curfont) and te:
c = openchar[curfont]
te = c + te
wi = len(c) + wi
para.words[i] = (fo, te, wi) + \
para.words[i][3:]
if te: oldfont = curfont
else: oldfont = 'r'
if curfont in string.uppercase:
te = string.upper(te)
para.words[i] = (fo, te, wi) + para.words[i][3:]
del para.words[-1]
# Formatter back-end to draw the text in a window.
# This has an option to draw while the paragraphs are being added,
# to minimize the delay before the user sees anything.
# This manages the entire "document" of the window.
class StdwinBackEnd(SavingBackEnd):
#
def __init__(self, window, drawnow):
self.window = window
self.drawnow = drawnow
self.width = window.getwinsize()[0]
self.selection = None
self.height = 0
window.setorigin(0, 0)
window.setdocsize(0, 0)
self.d = window.begindrawing()
SavingBackEnd.__init__(self)
#
def finish(self):
self.d.close()
self.d = None
self.window.setdocsize(0, self.height)
#
def addpara(self, p):
self.paralist.append(p)
if self.drawnow:
self.height = \
p.render(self.d, 0, self.height, self.width)
else:
p.layout(self.width)
p.left = 0
p.top = self.height
p.right = self.width
p.bottom = self.height + p.height
self.height = p.bottom
#
def resize(self):
self.window.change((0, 0), (self.width, self.height))
self.width = self.window.getwinsize()[0]
self.height = 0
for p in self.paralist:
p.layout(self.width)
p.left = 0
p.top = self.height
p.right = self.width
p.bottom = self.height + p.height
self.height = p.bottom
self.window.change((0, 0), (self.width, self.height))
self.window.setdocsize(0, self.height)
#
def redraw(self, area):
d = self.window.begindrawing()
(left, top), (right, bottom) = area
d.erase(area)
d.cliprect(area)
for p in self.paralist:
if top < p.bottom and p.top < bottom:
v = p.render(d, p.left, p.top, p.right)
if self.selection:
self.invert(d, self.selection)
d.close()
#
def setselection(self, new):
if new:
long1, long2 = new
pos1 = long1[:3]
pos2 = long2[:3]
new = pos1, pos2
if new <> self.selection:
d = self.window.begindrawing()
if self.selection:
self.invert(d, self.selection)
if new:
self.invert(d, new)
d.close()
self.selection = new
#
def getselection(self):
return self.selection
#
def extractselection(self):
if self.selection:
a, b = self.selection
return self.extractpart(a, b)
else:
return None
#
def invert(self, d, region):
long1, long2 = region
if long1 > long2: long1, long2 = long2, long1
para1, pos1 = long1
para2, pos2 = long2
while para1 < para2:
self.paralist[para1].invert(d, pos1, None)
pos1 = None
para1 = para1 + 1
self.paralist[para2].invert(d, pos1, pos2)
#
def search(self, prog):
import re, string
if type(prog) == type(''):
prog = re.compile(string.lower(prog))
if self.selection:
iold = self.selection[0][0]
else:
iold = -1
hit = None
for i in range(len(self.paralist)):
if i == iold or i < iold and hit:
continue
p = self.paralist[i]
text = string.lower(p.extract())
match = prog.search(text)
if match:
a, b = match.group(0)
long1 = i, a
long2 = i, b
hit = long1, long2
if i > iold:
break
if hit:
self.setselection(hit)
i = hit[0][0]
p = self.paralist[i]
self.window.show((p.left, p.top), (p.right, p.bottom))
return 1
else:
return 0
#
def showanchor(self, id):
for i in range(len(self.paralist)):
p = self.paralist[i]
if p.hasanchor(id):
long1 = i, 0
long2 = i, len(p.extract())
hit = long1, long2
self.setselection(hit)
self.window.show( \
(p.left, p.top), (p.right, p.bottom))
break
# GL extensions
class GLFontCache:
#
def __init__(self):
self.reset()
self.setfont('')
#
def reset(self):
self.fontkey = None
self.fonthandle = None
self.fontinfo = None
self.fontcache = {}
#
def close(self):
self.reset()
#
def setfont(self, fontkey):
if fontkey == '':
fontkey = 'Times-Roman 12'
elif ' ' not in fontkey:
fontkey = fontkey + ' 12'
if fontkey == self.fontkey:
return
if self.fontcache.has_key(fontkey):
handle = self.fontcache[fontkey]
else:
import string
i = string.index(fontkey, ' ')
name, sizestr = fontkey[:i], fontkey[i:]
size = eval(sizestr)
key1 = name + ' 1'
key = name + ' ' + `size`
# NB key may differ from fontkey!
if self.fontcache.has_key(key):
handle = self.fontcache[key]
else:
if self.fontcache.has_key(key1):
handle = self.fontcache[key1]
else:
import fm
handle = fm.findfont(name)
self.fontcache[key1] = handle
handle = handle.scalefont(size)
self.fontcache[fontkey] = \
self.fontcache[key] = handle
self.fontkey = fontkey
if self.fonthandle <> handle:
self.fonthandle = handle
self.fontinfo = handle.getfontinfo()
handle.setfont()
class GLMeasurer(GLFontCache):
#
def textwidth(self, text):
return self.fonthandle.getstrwidth(text)
#
def baseline(self):
return self.fontinfo[6] - self.fontinfo[3]
#
def lineheight(self):
return self.fontinfo[6]
class GLWriter(GLFontCache):
#
# NOTES:
# (1) Use gl.ortho2 to use X pixel coordinates!
#
def text(self, (h, v), text):
import gl, fm
gl.cmov2i(h, v + self.fontinfo[6] - self.fontinfo[3])
fm.prstr(text)
#
def setfont(self, fontkey):
oldhandle = self.fonthandle
GLFontCache.setfont(fontkey)
if self.fonthandle <> oldhandle:
handle.setfont()
class GLMeasurerWriter(GLMeasurer, GLWriter):
pass
class GLBackEnd(SavingBackEnd):
#
def __init__(self, wid):
import gl
gl.winset(wid)
self.wid = wid
self.width = gl.getsize()[1]
self.height = 0
self.d = GLMeasurerWriter()
SavingBackEnd.__init__(self)
#
def finish(self):
pass
#
def addpara(self, p):
self.paralist.append(p)
self.height = p.render(self.d, 0, self.height, self.width)
#
def redraw(self):
import gl
gl.winset(self.wid)
width = gl.getsize()[1]
if width <> self.width:
setdocsize = 1
self.width = width
for p in self.paralist:
p.top = p.bottom = None
d = self.d
v = 0
for p in self.paralist:
v = p.render(d, 0, v, width)
Lib/newdir.py deleted 100644 → 0
View file @ 1d5e80cb
# New dir() function
# This should be the new dir(), except that it should still list
# the current local name space by default
def listattrs(x):
try:
dictkeys = x.__dict__.keys()
except (AttributeError, TypeError):
dictkeys = []
#
try:
methods = x.__methods__
except (AttributeError, TypeError):
methods = []
#
try:
members = x.__members__
except (AttributeError, TypeError):
members = []
#
try:
the_class = x.__class__
except (AttributeError, TypeError):
the_class = None
#
try:
bases = x.__bases__
except (AttributeError, TypeError):
bases = ()
#
total = dictkeys + methods + members
if the_class:
# It's a class instace; add the class's attributes
# that are functions (methods)...
class_attrs = listattrs(the_class)
class_methods = []
for name in class_attrs:
if is_function(getattr(the_class, name)):
class_methods.append(name)
total = total + class_methods
elif bases:
# It's a derived class; add the base class attributes
for base in bases:
base_attrs = listattrs(base)
total = total + base_attrs
total.sort()
return total
i = 0
while i+1 < len(total):
if total[i] == total[i+1]:
del total[i+1]
else:
i = i+1
return total
# Helper to recognize functions
def is_function(x):
return type(x) == type(is_function)
# Approximation of builtin dir(); but note that this lists the user's
# variables by default, not the current local name space.
def dir(x = None):
if x is not None:
return listattrs(x)
else:
import __main__
return listattrs(__main__)
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