def begin_page(self, page, ctm):
(x0, y0, x1, y1) = page.mediabox
(x0, y0) = apply_matrix_pt(ctm, (x0, y0))
(x1, y1) = apply_matrix_pt(ctm, (x1, y1))
mediabox = (0, 0, abs(x0 - x1), abs(y0 - y1))
self.cur_item = LTPage(self.pageno, mediabox)
return
def begin_page(self, page, ctm):
(x0,y0,x1,y1) = page.mediabox
(x0,y0) = apply_matrix_pt(ctm, (x0,y0))
(x1,y1) = apply_matrix_pt(ctm, (x1,y1))
mediabox = (0, 0, abs(x0-x1), abs(y0-y1))
self.cur_item = LTPage(self.pageno, mediabox)
return
def begin_figure(self, name, bbox, matrix):
self._stack.append(self.cur_item)
self.cur_item = LTFigure(name, bbox, mult_matrix(matrix, self.ctm))
return
class PDFLayoutAnalyzer(PDFTextDevice):
def __init__(self, rsrcmgr, pageno=1, laparams=None):
PDFTextDevice.__init__(self, rsrcmgr)
self.pageno = pageno
self.laparams = laparams
self._stack = []
return
def begin_page(self, page, ctm):
(x0, y0, x1, y1) = page.mediabox
(x0, y0) = apply_matrix_pt(ctm, (x0, y0))
(x1, y1) = apply_matrix_pt(ctm, (x1, y1))
mediabox = (0, 0, abs(x0 - x1), abs(y0 - y1))
self.cur_item = LTPage(self.pageno, mediabox)
return
def end_page(self, page):
assert not self._stack
assert isinstance(self.cur_item, LTPage)
if self.laparams is not None:
self.cur_item.analyze(self.laparams)
self.pageno += 1
self.receive_layout(self.cur_item)
return
def begin_figure(self, name, bbox, matrix):
self._stack.append(self.cur_item)
self.cur_item = LTFigure(name, bbox, mult_matrix(matrix, self.ctm))
return
def end_figure(self, _):
fig = self.cur_item
assert isinstance(self.cur_item, LTFigure)
self.cur_item = self._stack.pop()
self.cur_item.add(fig)
return
def render_image(self, name, stream):
assert isinstance(self.cur_item, LTFigure)
item = LTImage(name, stream, (self.cur_item.x0, self.cur_item.y0,
self.cur_item.x1, self.cur_item.y1))
self.cur_item.add(item)
return
def paint_path(self, gstate, stroke, fill, evenodd, path):
shape = ''.join(x[0] for x in path)
if shape == 'ml':
# horizontal/vertical line
(_, x0, y0) = path[0]
(_, x1, y1) = path[1]
(x0, y0) = apply_matrix_pt(self.ctm, (x0, y0))
(x1, y1) = apply_matrix_pt(self.ctm, (x1, y1))
if x0 == x1 or y0 == y1:
self.cur_item.add(LTLine(gstate.linewidth, (x0, y0), (x1, y1)))
return
if shape == 'mlllh':
# rectangle
(_, x0, y0) = path[0]
(_, x1, y1) = path[1]
(_, x2, y2) = path[2]
(_, x3, y3) = path[3]
(x0, y0) = apply_matrix_pt(self.ctm, (x0, y0))
(x1, y1) = apply_matrix_pt(self.ctm, (x1, y1))
(x2, y2) = apply_matrix_pt(self.ctm, (x2, y2))
(x3, y3) = apply_matrix_pt(self.ctm, (x3, y3))
if ((x0 == x1 and y1 == y2 and x2 == x3 and y3 == y0)
or (y0 == y1 and x1 == x2 and y2 == y3 and x3 == x0)):
self.cur_item.add(LTRect(gstate.linewidth, (x0, y0, x2, y2)))
return
# other shapes
pts = []
for p in path:
for i in xrange(1, len(p), 2):
pts.append(apply_matrix_pt(self.ctm, (p[i], p[i + 1])))
self.cur_item.add(LTCurve(gstate.linewidth, pts))
return
def render_char(self, matrix, font, fontsize, scaling, rise, cid):
try:
text = font.to_unichr(cid)
assert isinstance(text, unicode), text
except PDFUnicodeNotDefined:
text = self.handle_undefined_char(font, cid)
textwidth = font.char_width(cid)
textdisp = font.char_disp(cid)
item = LTChar(matrix, font, fontsize, scaling, rise, text, textwidth,
textdisp)
self.cur_item.add(item)
return item.adv
def handle_undefined_char(self, font, cid):
if self.debug:
print >> sys.stderr, 'undefined: %r, %r' % (font, cid)
return '(cid:%d)' % cid
def receive_layout(self, ltpage):
return
def begin_figure(self, name, bbox, matrix):
self._stack.append(self.cur_item)
self.cur_item = LTFigure(name, bbox, mult_matrix(matrix, self.ctm))
return
class PDFLayoutAnalyzer(PDFTextDevice):
def __init__(self, rsrcmgr, pageno=1, laparams=None):
PDFTextDevice.__init__(self, rsrcmgr)
self.pageno = pageno
self.laparams = laparams
self._stack = []
return
def begin_page(self, page, ctm):
(x0,y0,x1,y1) = page.mediabox
(x0,y0) = apply_matrix_pt(ctm, (x0,y0))
(x1,y1) = apply_matrix_pt(ctm, (x1,y1))
mediabox = (0, 0, abs(x0-x1), abs(y0-y1))
self.cur_item = LTPage(self.pageno, mediabox)
return
def end_page(self, page):
assert not self._stack
assert isinstance(self.cur_item, LTPage)
if self.laparams is not None:
self.cur_item.analyze(self.laparams)
self.pageno += 1
self.receive_layout(self.cur_item)
return
def begin_figure(self, name, bbox, matrix):
self._stack.append(self.cur_item)
self.cur_item = LTFigure(name, bbox, mult_matrix(matrix, self.ctm))
return
def end_figure(self, _):
fig = self.cur_item
assert isinstance(self.cur_item, LTFigure)
self.cur_item = self._stack.pop()
self.cur_item.add(fig)
return
def render_image(self, name, stream):
assert isinstance(self.cur_item, LTFigure)
item = LTImage(name, stream,
(self.cur_item.x0, self.cur_item.y0,
self.cur_item.x1, self.cur_item.y1))
self.cur_item.add(item)
return
def paint_path(self, gstate, stroke, fill, evenodd, path):
shape = ''.join(x[0] for x in path)
if shape == 'ml':
# horizontal/vertical line
(_,x0,y0) = path[0]
(_,x1,y1) = path[1]
(x0,y0) = apply_matrix_pt(self.ctm, (x0,y0))
(x1,y1) = apply_matrix_pt(self.ctm, (x1,y1))
if x0 == x1 or y0 == y1:
self.cur_item.add(LTLine(gstate.linewidth, (x0,y0), (x1,y1)))
return
if shape == 'mlllh':
# rectangle
(_,x0,y0) = path[0]
(_,x1,y1) = path[1]
(_,x2,y2) = path[2]
(_,x3,y3) = path[3]
(x0,y0) = apply_matrix_pt(self.ctm, (x0,y0))
(x1,y1) = apply_matrix_pt(self.ctm, (x1,y1))
(x2,y2) = apply_matrix_pt(self.ctm, (x2,y2))
(x3,y3) = apply_matrix_pt(self.ctm, (x3,y3))
if ((x0 == x1 and y1 == y2 and x2 == x3 and y3 == y0) or
(y0 == y1 and x1 == x2 and y2 == y3 and x3 == x0)):
self.cur_item.add(LTRect(gstate.linewidth, (x0,y0,x2,y2)))
return
# other shapes
pts = []
for p in path:
for i in xrange(1, len(p), 2):
pts.append(apply_matrix_pt(self.ctm, (p[i], p[i+1])))
self.cur_item.add(LTCurve(gstate.linewidth, pts))
return
def render_char(self, matrix, font, fontsize, scaling, rise, cid):
try:
text = font.to_unichr(cid)
assert isinstance(text, unicode), text
except PDFUnicodeNotDefined:
text = self.handle_undefined_char(font, cid)
textwidth = font.char_width(cid)
textdisp = font.char_disp(cid)
item = LTChar(matrix, font, fontsize, scaling, rise, text, textwidth, textdisp)
self.cur_item.add(item)
return item.adv
def handle_undefined_char(self, font, cid):
if self.debug:
print >>sys.stderr, 'undefined: %r, %r' % (font, cid)
return '(cid:%d)' % cid
def receive_layout(self, ltpage):
return
class PDFPageAggregator(PDFTextDevice):
def __init__(self, rsrc, pageno=1, laparams=None):
PDFTextDevice.__init__(self, rsrc)
self.laparams = laparams
self.pageno = pageno
self.stack = []
return
def begin_page(self, page, ctm):
(x0,y0,x1,y1) = page.mediabox
(x0,y0) = apply_matrix_pt(ctm, (x0,y0))
(x1,y1) = apply_matrix_pt(ctm, (x1,y1))
mediabox = (0, 0, abs(x0-x1), abs(y0-y1))
self.cur_item = LTPage(self.pageno, mediabox)
return
def end_page(self, _):
assert not self.stack
assert isinstance(self.cur_item, LTPage)
self.cur_item.fixate()
self.cur_item.analyze(self.laparams)
self.pageno += 1
return self.cur_item
def begin_figure(self, name, bbox, matrix):
self.stack.append(self.cur_item)
self.cur_item = LTFigure(name, bbox, mult_matrix(matrix, self.ctm))
return
def end_figure(self, _):
fig = self.cur_item
assert isinstance(self.cur_item, LTFigure)
self.cur_item.fixate()
self.cur_item.analyze(self.laparams)
self.cur_item = self.stack.pop()
self.cur_item.add(fig)
return
def render_image(self, name, stream):
assert isinstance(self.cur_item, LTFigure)
item = LTImage(name, stream,
(self.cur_item.x0, self.cur_item.y0,
self.cur_item.x1, self.cur_item.y1))
self.cur_item.add(item)
return
def paint_path(self, gstate, stroke, fill, evenodd, path):
shape = ''.join(x[0] for x in path)
if shape == 'ml':
# horizontal/vertical line
(_,x0,y0) = path[0]
(_,x1,y1) = path[1]
(x0,y0) = apply_matrix_pt(self.ctm, (x0,y0))
(x1,y1) = apply_matrix_pt(self.ctm, (x1,y1))
self.cur_item.add(LTLine(gstate.linewidth, (x0,y0), (x1,y1)))
elif shape == 'mlllh':
# rectangle
(_,x0,y0) = path[0]
(_,x1,y1) = path[1]
(_,x2,y2) = path[2]
(_,x3,y3) = path[3]
(x0,y0) = apply_matrix_pt(self.ctm, (x0,y0))
(x1,y1) = apply_matrix_pt(self.ctm, (x1,y1))
(x2,y2) = apply_matrix_pt(self.ctm, (x2,y2))
(x3,y3) = apply_matrix_pt(self.ctm, (x3,y3))
if ((x0 == x1 and y1 == y2 and x2 == x3 and y3 == y0) or
(y0 == y1 and x1 == x2 and y2 == y3 and x3 == x0)):
self.cur_item.add(LTRect(gstate.linewidth, (x0,y0,x2,y2)))
else:
# other polygon
pts = []
for p in path:
for i in xrange(1, len(p), 2):
pts.append(apply_matrix_pt(self.ctm, (p[i], p[i+1])))
self.cur_item.add(LTPolygon(gstate.linewidth, pts))
return
def render_char(self, matrix, font, fontsize, scaling, cid):
item = LTChar(matrix, font, fontsize, scaling, cid)
self.cur_item.add(item)
return item.adv
class PDFPageAggregator(PDFTextDevice):
def __init__(self, rsrc, pageno=1, laparams=None):
PDFTextDevice.__init__(self, rsrc)
self.laparams = laparams
self.pageno = pageno
self.stack = []
return
def begin_page(self, page, ctm):
(x0,y0,x1,y1) = page.mediabox
(x0,y0) = apply_matrix_pt(ctm, (x0,y0))
(x1,y1) = apply_matrix_pt(ctm, (x1,y1))
mediabox = (0, 0, abs(x0-x1), abs(y0-y1))
self.cur_item = LTPage(self.pageno, mediabox)
return
def end_page(self, _):
assert not self.stack
assert isinstance(self.cur_item, LTPage)
self.cur_item.fixate()
if self.laparams:
self.cur_item.analyze_layout(self.laparams)
self.pageno += 1
return self.cur_item
def begin_figure(self, name, bbox, matrix):
self.stack.append(self.cur_item)
self.cur_item = LTFigure(name, bbox, mult_matrix(matrix, self.ctm))
return
def end_figure(self, _):
fig = self.cur_item
self.cur_item.fixate()
self.cur_item = self.stack.pop()
self.cur_item.add(fig)
return
def render_image(self, name, stream):
assert isinstance(self.cur_item, LTFigure)
ismask = stream.get_any(('IM', 'ImageMask'))
bits = stream.get_any(('BPC', 'BitsPerCompoment'), 1)
csp = stream.get_any(('CS', 'ColorSpace'))
if not isinstance(csp, list):
csp = [csp]
item = LTImage(name, stream.get_any(('F', 'Filter')),
(stream.get_any(('W', 'Width')),
stream.get_any(('H', 'Height'))),
(self.cur_item.x0, self.cur_item.y0,
self.cur_item.x1, self.cur_item.y1),
stream.get_rawdata())
self.cur_item.add(item)
return
def paint_path(self, gstate, stroke, fill, evenodd, path):
shape = ''.join(x[0] for x in path)
if shape == 'ml':
# horizontal/vertical line
(_,x0,y0) = path[0]
(_,x1,y1) = path[1]
(x0,y0) = apply_matrix_pt(self.ctm, (x0,y0))
(x1,y1) = apply_matrix_pt(self.ctm, (x1,y1))
self.cur_item.add(LTLine(gstate.linewidth, (x0,y0), (x1,y1)))
elif shape == 'mlllh':
# rectangle
(_,x0,y0) = path[0]
(_,x1,y1) = path[1]
(_,x2,y2) = path[2]
(_,x3,y3) = path[3]
(x0,y0) = apply_matrix_pt(self.ctm, (x0,y0))
(x1,y1) = apply_matrix_pt(self.ctm, (x1,y1))
(x2,y2) = apply_matrix_pt(self.ctm, (x2,y2))
(x3,y3) = apply_matrix_pt(self.ctm, (x3,y3))
if ((x0 == x1 and y1 == y2 and x2 == x3 and y3 == y0) or
(y0 == y1 and x1 == x2 and y2 == y3 and x3 == x0)):
self.cur_item.add(LTRect(gstate.linewidth, (x0,y0,x2,y2)))
else:
# other polygon
pts = []
for p in path:
for i in xrange(1, len(p), 2):
pts.append(apply_matrix_pt(self.ctm, (p[i], p[i+1])))
self.cur_item.add(LTPolygon(gstate.linewidth, pts))
return
def render_chars(self, matrix, font, fontsize, charspace, scaling, chars):
if not chars: return (0, 0)
item = LTTextItem(matrix, font, fontsize, charspace, scaling, chars)
self.cur_item.add(item)
return item.adv
class PDFLayoutAnalyzer(PDFTextDevice):
def __init__(self, rsrcmgr, pageno=1, laparams=None):
PDFTextDevice.__init__(self, rsrcmgr)
self.laparams = laparams
self.pageno = pageno
self.stack = []
return
def begin_page(self, page, ctm):
(x0,y0,x1,y1) = page.mediabox
(x0,y0) = apply_matrix_pt(ctm, (x0,y0))
(x1,y1) = apply_matrix_pt(ctm, (x1,y1))
mediabox = (0, 0, abs(x0-x1), abs(y0-y1))
self.cur_item = LTPage(self.pageno, mediabox)
return
def end_page(self, page):
assert not self.stack
assert isinstance(self.cur_item, LTPage)
self.cur_item.fixate()
self.cur_item.analyze(self.laparams)
self.pageno += 1
self.receive_layout(self.cur_item)
return
def begin_figure(self, name, bbox, matrix):
self.stack.append(self.cur_item)
self.cur_item = LTFigure(name, bbox, mult_matrix(matrix, self.ctm))
return
def end_figure(self, _):
fig = self.cur_item
assert isinstance(self.cur_item, LTFigure)
self.cur_item.fixate()
self.cur_item.analyze(self.laparams)
self.cur_item = self.stack.pop()
self.cur_item.add(fig)
return
def render_image(self, name, stream):
assert isinstance(self.cur_item, LTFigure)
item = LTImage(name, stream,
(self.cur_item.x0, self.cur_item.y0,
self.cur_item.x1, self.cur_item.y1))
self.cur_item.add(item)
return
def paint_path(self, gstate, stroke, fill, evenodd, path):
shape = ''.join(x[0] for x in path)
if shape == 'ml':
# horizontal/vertical line
(_,x0,y0) = path[0]
(_,x1,y1) = path[1]
(x0,y0) = apply_matrix_pt(self.ctm, (x0,y0))
(x1,y1) = apply_matrix_pt(self.ctm, (x1,y1))
self.cur_item.add(LTLine(gstate.linewidth, (x0,y0), (x1,y1)))
elif shape == 'mlllh':
# rectangle
(_,x0,y0) = path[0]
(_,x1,y1) = path[1]
(_,x2,y2) = path[2]
(_,x3,y3) = path[3]
(x0,y0) = apply_matrix_pt(self.ctm, (x0,y0))
(x1,y1) = apply_matrix_pt(self.ctm, (x1,y1))
(x2,y2) = apply_matrix_pt(self.ctm, (x2,y2))
(x3,y3) = apply_matrix_pt(self.ctm, (x3,y3))
if ((x0 == x1 and y1 == y2 and x2 == x3 and y3 == y0) or
(y0 == y1 and x1 == x2 and y2 == y3 and x3 == x0)):
self.cur_item.add(LTRect(gstate.linewidth, (x0,y0,x2,y2)))
else:
# other polygon
pts = []
for p in path:
for i in xrange(1, len(p), 2):
pts.append(apply_matrix_pt(self.ctm, (p[i], p[i+1])))
self.cur_item.add(LTPolygon(gstate.linewidth, pts))
return
def render_char(self, matrix, font, fontsize, scaling, rise, cid):
item = LTChar(matrix, font, fontsize, scaling, rise, cid)
self.cur_item.add(item)
return item.adv
def receive_layout(self, ltpage):
return
