From 6a1b1338de866ecd171ec15da011c761fb97f2e0 Mon Sep 17 00:00:00 2001 From: Guido van Rossum Date: Thu, 11 May 2000 18:28:03 +0000 Subject: Removing junk --- Demo/tkinter/www/Para.py | 408 ---------------------------- Demo/tkinter/www/fmt.py | 627 ------------------------------------------- Demo/tkinter/www/htmllib.py | 639 -------------------------------------------- Demo/tkinter/www/sgmllib.py | 321 ---------------------- Demo/tkinter/www/tkfmt.py | 63 ----- Demo/tkinter/www/www1.py | 19 -- Demo/tkinter/www/www10.py | 101 ------- Demo/tkinter/www/www11.py | 137 ---------- Demo/tkinter/www/www12.py | 210 --------------- Demo/tkinter/www/www13.py | 218 --------------- Demo/tkinter/www/www2.py | 35 --- Demo/tkinter/www/www3.py | 46 ---- Demo/tkinter/www/www4.py | 26 -- Demo/tkinter/www/www5.py | 29 -- Demo/tkinter/www/www6.py | 31 --- Demo/tkinter/www/www7.py | 33 --- Demo/tkinter/www/www8.py | 43 --- Demo/tkinter/www/www9.py | 60 ----- 18 files changed, 3046 deletions(-) delete mode 100755 Demo/tkinter/www/Para.py delete mode 100755 Demo/tkinter/www/fmt.py delete mode 100755 Demo/tkinter/www/htmllib.py delete mode 100755 Demo/tkinter/www/sgmllib.py delete mode 100755 Demo/tkinter/www/tkfmt.py delete mode 100755 Demo/tkinter/www/www1.py delete mode 100755 Demo/tkinter/www/www10.py delete mode 100755 Demo/tkinter/www/www11.py delete mode 100755 Demo/tkinter/www/www12.py delete mode 100755 Demo/tkinter/www/www13.py delete mode 100755 Demo/tkinter/www/www2.py delete mode 100755 Demo/tkinter/www/www3.py delete mode 100755 Demo/tkinter/www/www4.py delete mode 100755 Demo/tkinter/www/www5.py delete mode 100755 Demo/tkinter/www/www6.py delete mode 100755 Demo/tkinter/www/www7.py delete mode 100755 Demo/tkinter/www/www8.py delete mode 100755 Demo/tkinter/www/www9.py diff --git a/Demo/tkinter/www/Para.py b/Demo/tkinter/www/Para.py deleted file mode 100755 index e24471f..0000000 --- a/Demo/tkinter/www/Para.py +++ /dev/null @@ -1,408 +0,0 @@ -# Text formatting abstractions - - -# 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() diff --git a/Demo/tkinter/www/fmt.py b/Demo/tkinter/www/fmt.py deleted file mode 100755 index b5ca33c..0000000 --- a/Demo/tkinter/www/fmt.py +++ /dev/null @@ -1,627 +0,0 @@ -# Text formatting abstractions - - -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) - # - def hrule(self): - # Typically need to override this for bit-mapped displays - self.flush() - self.addword('-'*60, 0) - self.flush() - - -# 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 regex, string - if type(prog) == type(''): - prog = regex.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()) - if prog.search(text) >= 0: - a, b = prog.regs[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) diff --git a/Demo/tkinter/www/htmllib.py b/Demo/tkinter/www/htmllib.py deleted file mode 100755 index f45657f..0000000 --- a/Demo/tkinter/www/htmllib.py +++ /dev/null @@ -1,639 +0,0 @@ -# A parser for HTML documents - - -# HTML: HyperText Markup Language; an SGML-like syntax used by WWW to -# describe hypertext documents -# -# SGML: Standard Generalized Markup Language -# -# WWW: World-Wide Web; a distributed hypertext system develped at CERN -# -# CERN: European Particle Physics Laboratory in Geneva, Switzerland - - -# This file is only concerned with parsing and formatting HTML -# documents, not with the other (hypertext and networking) aspects of -# the WWW project. (It does support highlighting of anchors.) - - -import os -import sys -import regex -import string -import sgmllib - - -class HTMLParser(sgmllib.SGMLParser): - - # Copy base class entities and add some - entitydefs = {} - for key in sgmllib.SGMLParser.entitydefs.keys(): - entitydefs[key] = sgmllib.SGMLParser.entitydefs[key] - entitydefs['bullet'] = '*' - - # Provided -- handlers for tags introducing literal text - - def start_listing(self, attrs): - self.setliteral('listing') - self.literal_bgn('listing', attrs) - - def end_listing(self): - self.literal_end('listing') - - def start_xmp(self, attrs): - self.setliteral('xmp') - self.literal_bgn('xmp', attrs) - - def end_xmp(self): - self.literal_end('xmp') - - def do_plaintext(self, attrs): - self.setnomoretags() - self.literal_bgn('plaintext', attrs) - - # To be overridden -- begin/end literal mode - def literal_bgn(self, tag, attrs): pass - def literal_end(self, tag): pass - - -# Next level of sophistication -- collect anchors, title, nextid and isindex -class CollectingParser(HTMLParser): - # - def __init__(self): - HTMLParser.__init__(self) - self.savetext = None - self.nextid = '' - self.isindex = 0 - self.title = '' - self.inanchor = 0 - self.anchors = [] - self.anchornames = [] - self.anchortypes = [] - # - def start_a(self, attrs): - self.inanchor = 0 - href = '' - name = '' - type = '' - for attrname, value in attrs: - if attrname == 'href': - href = value - if attrname == 'name=': - name = value - if attrname == 'type=': - type = string.lower(value) - if not (href or name): - return - self.anchors.append(href) - self.anchornames.append(name) - self.anchortypes.append(type) - self.inanchor = len(self.anchors) - if not href: - self.inanchor = -self.inanchor - # - def end_a(self): - if self.inanchor > 0: - # Don't show anchors pointing into the current document - if self.anchors[self.inanchor-1][:1] <> '#': - self.handle_data('[' + `self.inanchor` + ']') - self.inanchor = 0 - # - def start_header(self, attrs): pass - def end_header(self): pass - # - # (head is the same as header) - def start_head(self, attrs): pass - def end_head(self): pass - # - def start_body(self, attrs): pass - def end_body(self): pass - # - def do_nextid(self, attrs): - self.nextid = attrs - # - def do_isindex(self, attrs): - self.isindex = 1 - # - def start_title(self, attrs): - self.savetext = '' - # - def end_title(self): - if self.savetext <> None: - self.title = self.savetext - self.savetext = None - # - def handle_data(self, text): - if self.savetext is not None: - self.savetext = self.savetext + text - - -# Formatting parser -- takes a formatter and a style sheet as arguments - -# XXX The use of style sheets should change: for each tag and end tag -# there should be a style definition, and a style definition should -# encompass many more parameters: font, justification, indentation, -# vspace before, vspace after, hanging tag... - -wordprog = regex.compile('[^ \t\n]*') -spaceprog = regex.compile('[ \t\n]*') - -class FormattingParser(CollectingParser): - - def __init__(self, formatter, stylesheet): - CollectingParser.__init__(self) - self.fmt = formatter - self.stl = stylesheet - self.savetext = None - self.compact = 0 - self.nofill = 0 - self.resetfont() - self.setindent(self.stl.stdindent) - - def resetfont(self): - self.fontstack = [] - self.stylestack = [] - self.fontset = self.stl.stdfontset - self.style = ROMAN - self.passfont() - - def passfont(self): - font = self.fontset[self.style] - self.fmt.setfont(font) - - def pushstyle(self, style): - self.stylestack.append(self.style) - self.style = min(style, len(self.fontset)-1) - self.passfont() - - def popstyle(self): - self.style = self.stylestack[-1] - del self.stylestack[-1] - self.passfont() - - def pushfontset(self, fontset, style): - self.fontstack.append(self.fontset) - self.fontset = fontset - self.pushstyle(style) - - def popfontset(self): - self.fontset = self.fontstack[-1] - del self.fontstack[-1] - self.popstyle() - - def flush(self): - self.fmt.flush() - - def setindent(self, n): - self.fmt.setleftindent(n) - - def needvspace(self, n): - self.fmt.needvspace(n) - - def close(self): - HTMLParser.close(self) - self.fmt.flush() - - def handle_literal(self, text): - lines = string.splitfields(text, '\n') - for i in range(1, len(lines)): - lines[i] = string.expandtabs(lines[i], 8) - for line in lines[:-1]: - self.fmt.addword(line, 0) - self.fmt.flush() - self.fmt.nospace = 0 - for line in lines[-1:]: - self.fmt.addword(line, 0) - - def handle_data(self, text): - if self.savetext is not None: - self.savetext = self.savetext + text - return - if self.literal: - self.handle_literal(text) - return - i = 0 - n = len(text) - while i < n: - j = i + wordprog.match(text, i) - word = text[i:j] - i = j + spaceprog.match(text, j) - self.fmt.addword(word, i-j) - if self.nofill and '\n' in text[j:i]: - self.fmt.flush() - self.fmt.nospace = 0 - i = j+1 - while text[i-1] <> '\n': i = i+1 - - def literal_bgn(self, tag, attrs): - if tag == 'plaintext': - self.flush() - else: - self.needvspace(1) - self.pushfontset(self.stl.stdfontset, FIXED) - self.setindent(self.stl.literalindent) - - def literal_end(self, tag): - self.needvspace(1) - self.popfontset() - self.setindent(self.stl.stdindent) - - def start_title(self, attrs): - self.flush() - self.savetext = '' - # NB end_title is unchanged - - def do_p(self, attrs): - if self.compact: - self.flush() - else: - self.needvspace(1) - - def do_hr(self, attrs): - self.fmt.hrule() - - def start_h1(self, attrs): - self.needvspace(2) - self.setindent(self.stl.h1indent) - self.pushfontset(self.stl.h1fontset, BOLD) - self.fmt.setjust('c') - - def end_h1(self): - self.popfontset() - self.needvspace(2) - self.setindent(self.stl.stdindent) - self.fmt.setjust('l') - - def start_h2(self, attrs): - self.needvspace(1) - self.setindent(self.stl.h2indent) - self.pushfontset(self.stl.h2fontset, BOLD) - - def end_h2(self): - self.popfontset() - self.needvspace(1) - self.setindent(self.stl.stdindent) - - def start_h3(self, attrs): - self.needvspace(1) - self.setindent(self.stl.stdindent) - self.pushfontset(self.stl.h3fontset, BOLD) - - def end_h3(self): - self.popfontset() - self.needvspace(1) - self.setindent(self.stl.stdindent) - - def start_h4(self, attrs): - self.needvspace(1) - self.setindent(self.stl.stdindent) - self.pushfontset(self.stl.stdfontset, BOLD) - - def end_h4(self): - self.popfontset() - self.needvspace(1) - self.setindent(self.stl.stdindent) - - start_h5 = start_h4 - end_h5 = end_h4 - - start_h6 = start_h5 - end_h6 = end_h5 - - start_h7 = start_h6 - end_h7 = end_h6 - - def start_ul(self, attrs): - self.needvspace(1) - for attrname, value in attrs: - if attrname == 'compact': - self.compact = 1 - self.setindent(0) - break - else: - self.setindent(self.stl.ulindent) - - start_dir = start_menu = start_ol = start_ul - - do_li = do_p - - def end_ul(self): - self.compact = 0 - self.needvspace(1) - self.setindent(self.stl.stdindent) - - end_dir = end_menu = end_ol = end_ul - - def start_dl(self, attrs): - for attrname, value in attrs: - if attrname == 'compact': - self.compact = 1 - self.needvspace(1) - - def end_dl(self): - self.compact = 0 - self.needvspace(1) - self.setindent(self.stl.stdindent) - - def do_dt(self, attrs): - if self.compact: - self.flush() - else: - self.needvspace(1) - self.setindent(self.stl.stdindent) - - def do_dd(self, attrs): - self.fmt.addword('', 1) - self.setindent(self.stl.ddindent) - - def start_address(self, attrs): - self.compact = 1 - self.needvspace(1) - self.fmt.setjust('r') - - def end_address(self): - self.compact = 0 - self.needvspace(1) - self.setindent(self.stl.stdindent) - self.fmt.setjust('l') - - def start_pre(self, attrs): - self.needvspace(1) - self.nofill = self.nofill + 1 - self.pushstyle(FIXED) - - def end_pre(self): - self.popstyle() - self.nofill = self.nofill - 1 - self.needvspace(1) - - start_typewriter = start_pre - end_typewriter = end_pre - - def do_img(self, attrs): - self.fmt.addword('(image)', 0) - - # Physical styles - - def start_tt(self, attrs): self.pushstyle(FIXED) - def end_tt(self): self.popstyle() - - def start_b(self, attrs): self.pushstyle(BOLD) - def end_b(self): self.popstyle() - - def start_i(self, attrs): self.pushstyle(ITALIC) - def end_i(self): self.popstyle() - - def start_u(self, attrs): self.pushstyle(ITALIC) # Underline??? - def end_u(self): self.popstyle() - - def start_r(self, attrs): self.pushstyle(ROMAN) # Not official - def end_r(self): self.popstyle() - - # Logical styles - - start_em = start_i - end_em = end_i - - start_strong = start_b - end_strong = end_b - - start_code = start_tt - end_code = end_tt - - start_samp = start_tt - end_samp = end_tt - - start_kbd = start_tt - end_kbd = end_tt - - start_file = start_tt # unofficial - end_file = end_tt - - start_var = start_i - end_var = end_i - - start_dfn = start_i - end_dfn = end_i - - start_cite = start_i - end_cite = end_i - - start_hp1 = start_i - end_hp1 = start_i - - start_hp2 = start_b - end_hp2 = end_b - - def unknown_starttag(self, tag, attrs): - print '*** unknown <' + tag + '>' - - def unknown_endtag(self, tag): - print '*** unknown ' - - -# An extension of the formatting parser which formats anchors differently. -class AnchoringParser(FormattingParser): - - def start_a(self, attrs): - FormattingParser.start_a(self, attrs) - if self.inanchor: - self.fmt.bgn_anchor(self.inanchor) - - def end_a(self): - if self.inanchor: - self.fmt.end_anchor(self.inanchor) - self.inanchor = 0 - - -# Style sheet -- this is never instantiated, but the attributes -# of the class object itself are used to specify fonts to be used -# for various paragraph styles. -# A font set is a non-empty list of fonts, in the order: -# [roman, italic, bold, fixed]. -# When a style is not available the nearest lower style is used - -ROMAN = 0 -ITALIC = 1 -BOLD = 2 -FIXED = 3 - -class NullStylesheet: - # Fonts -- none - stdfontset = [None] - h1fontset = [None] - h2fontset = [None] - h3fontset = [None] - # Indents - stdindent = 2 - ddindent = 25 - ulindent = 4 - h1indent = 0 - h2indent = 0 - literalindent = 0 - - -class X11Stylesheet(NullStylesheet): - stdfontset = [ \ - '-*-helvetica-medium-r-normal-*-*-100-100-*-*-*-*-*', \ - '-*-helvetica-medium-o-normal-*-*-100-100-*-*-*-*-*', \ - '-*-helvetica-bold-r-normal-*-*-100-100-*-*-*-*-*', \ - '-*-courier-medium-r-normal-*-*-100-100-*-*-*-*-*', \ - ] - h1fontset = [ \ - '-*-helvetica-medium-r-normal-*-*-180-100-*-*-*-*-*', \ - '-*-helvetica-medium-o-normal-*-*-180-100-*-*-*-*-*', \ - '-*-helvetica-bold-r-normal-*-*-180-100-*-*-*-*-*', \ - ] - h2fontset = [ \ - '-*-helvetica-medium-r-normal-*-*-140-100-*-*-*-*-*', \ - '-*-helvetica-medium-o-normal-*-*-140-100-*-*-*-*-*', \ - '-*-helvetica-bold-r-normal-*-*-140-100-*-*-*-*-*', \ - ] - h3fontset = [ \ - '-*-helvetica-medium-r-normal-*-*-120-100-*-*-*-*-*', \ - '-*-helvetica-medium-o-normal-*-*-120-100-*-*-*-*-*', \ - '-*-helvetica-bold-r-normal-*-*-120-100-*-*-*-*-*', \ - ] - ddindent = 40 - - -class MacStylesheet(NullStylesheet): - stdfontset = [ \ - ('Geneva', 'p', 10), \ - ('Geneva', 'i', 10), \ - ('Geneva', 'b', 10), \ - ('Monaco', 'p', 10), \ - ] - h1fontset = [ \ - ('Geneva', 'p', 18), \ - ('Geneva', 'i', 18), \ - ('Geneva', 'b', 18), \ - ('Monaco', 'p', 18), \ - ] - h3fontset = [ \ - ('Geneva', 'p', 14), \ - ('Geneva', 'i', 14), \ - ('Geneva', 'b', 14), \ - ('Monaco', 'p', 14), \ - ] - h3fontset = [ \ - ('Geneva', 'p', 12), \ - ('Geneva', 'i', 12), \ - ('Geneva', 'b', 12), \ - ('Monaco', 'p', 12), \ - ] - - -if os.name == 'mac': - StdwinStylesheet = MacStylesheet -else: - StdwinStylesheet = X11Stylesheet - - -class GLStylesheet(NullStylesheet): - stdfontset = [ \ - 'Helvetica 10', \ - 'Helvetica-Italic 10', \ - 'Helvetica-Bold 10', \ - 'Courier 10', \ - ] - h1fontset = [ \ - 'Helvetica 18', \ - 'Helvetica-Italic 18', \ - 'Helvetica-Bold 18', \ - 'Courier 18', \ - ] - h2fontset = [ \ - 'Helvetica 14', \ - 'Helvetica-Italic 14', \ - 'Helvetica-Bold 14', \ - 'Courier 14', \ - ] - h3fontset = [ \ - 'Helvetica 12', \ - 'Helvetica-Italic 12', \ - 'Helvetica-Bold 12', \ - 'Courier 12', \ - ] - - -# Test program -- produces no output but times how long it takes -# to send a document to a null formatter, exclusive of I/O - -def test(): - import fmt - import time - import urllib - if sys.argv[1:]: file = sys.argv[1] - else: file = 'test.html' - data = urllib.urlopen(file).read() - t0 = time.time() - fmtr = fmt.WritingFormatter(sys.stdout, 79) - p = FormattingParser(fmtr, NullStylesheet) - p.feed(data) - p.close() - t1 = time.time() - print - print '*** Formatting time:', round(t1-t0, 3), 'seconds.' - - -# Test program using stdwin - -def testStdwin(): - import stdwin, fmt - from stdwinevents import * - if sys.argv[1:]: file = sys.argv[1] - else: file = 'test.html' - data = open(file, 'r').read() - window = stdwin.open('testStdwin') - b = None - while 1: - etype, ewin, edetail = stdwin.getevent() - if etype == WE_CLOSE: - break - if etype == WE_SIZE: - window.setdocsize(0, 0) - window.setorigin(0, 0) - window.change((0, 0), (10000, 30000)) # XXX - if etype == WE_DRAW: - if not b: - b = fmt.StdwinBackEnd(window, 1) - f = fmt.BaseFormatter(b.d, b) - p = FormattingParser(f, \ - MacStylesheet) - p.feed(data) - p.close() - b.finish() - else: - b.redraw(edetail) - window.close() - - -# Test program using GL - -def testGL(): - import gl, GL, fmt - if sys.argv[1:]: file = sys.argv[1] - else: file = 'test.html' - data = open(file, 'r').read() - W, H = 600, 600 - gl.foreground() - gl.prefsize(W, H) - wid = gl.winopen('testGL') - gl.ortho2(0, W, H, 0) - gl.color(GL.WHITE) - gl.clear() - gl.color(GL.BLACK) - b = fmt.GLBackEnd(wid) - f = fmt.BaseFormatter(b.d, b) - p = FormattingParser(f, GLStylesheet) - p.feed(data) - p.close() - b.finish() - # - import time - time.sleep(5) - - -if __name__ == '__main__': - test() diff --git a/Demo/tkinter/www/sgmllib.py b/Demo/tkinter/www/sgmllib.py deleted file mode 100755 index af75e0d..0000000 --- a/Demo/tkinter/www/sgmllib.py +++ /dev/null @@ -1,321 +0,0 @@ -# A parser for SGML, using the derived class as static DTD. - -# XXX This only supports those SGML features used by HTML. - -# XXX There should be a way to distinguish between PCDATA (parsed -# character data -- the normal case), RCDATA (replaceable character -# data -- only char and entity references and end tags are special) -# and CDATA (character data -- only end tags are special). - - -import regex -import string - - -# Regular expressions used for parsing - -incomplete = regex.compile( \ - '') -commentopen = regex.compile('