def __init__(self, document, file, **kwargs):
_PSwriter.__init__(self, **kwargs)
if len(document.pages) != 1:
raise ValueError("EPS file can be constructed out of a single page document only")
page = document.pages[0]
canvas = page.canvas
pagefile = cStringIO.StringIO()
registry = PSregistry()
acontext = context()
pagebbox = bbox.empty()
page.processPS(pagefile, self, acontext, registry, pagebbox)
file.write("%!PS-Adobe-3.0 EPSF-3.0\n")
if pagebbox:
file.write("%%%%BoundingBox: %d %d %d %d\n" % pagebbox.lowrestuple_pt())
file.write("%%%%HiResBoundingBox: %g %g %g %g\n" % pagebbox.highrestuple_pt())
self.writeinfo(file)
file.write("%%EndComments\n")
file.write("%%BeginProlog\n")
registry.output(file, self)
file.write("%%EndProlog\n")
file.write(pagefile.getvalue())
pagefile.close()
file.write("showpage\n")
file.write("%%Trailer\n")
file.write("%%EOF\n")
def bbox(self):
bb = bbox.empty()
bb.includepoint_pt(*self.pdftrafo.apply_pt(0.0, 0.0))
bb.includepoint_pt(*self.pdftrafo.apply_pt(0.0, 1.0))
bb.includepoint_pt(*self.pdftrafo.apply_pt(1.0, 0.0))
bb.includepoint_pt(*self.pdftrafo.apply_pt(1.0, 1.0))
return bb
def processPDF(self, file, writer, context, registry, bbox):
context = context()
if self.items:
file.write("q\n") # gsave
nbbox = bboxmodule.empty()
for item in self.items:
if isinstance(item, type1font.text_pt):
if not context.textregion:
file.write("BT\n")
context.textregion = 1
else:
if context.textregion:
file.write("ET\n")
context.textregion = 0
context.font = None
item.processPDF(file, writer, context, registry, nbbox)
if context.textregion:
file.write("ET\n")
context.textregion = 0
context.font = None
# update bounding bbox
nbbox.transform(self.trafo)
if self.clipbbox is not None:
nbbox *= self.clipbbox
bbox += nbbox
file.write("Q\n") # grestore
def processPDF(self, file, writer, context, registry, bbox):
context = context()
context.trafo = context.trafo * self.trafo
if self.items:
file.write("q\n") # gsave
nbbox = bboxmodule.empty()
for item in self.items:
if isinstance(item, style.fillstyle):
context.fillstyles.append(item)
if not writer.text_as_path:
if isinstance(item, font.text_pt):
if not context.textregion:
file.write("BT\n")
context.textregion = 1
else:
if context.textregion:
file.write("ET\n")
context.textregion = 0
context.selectedfont = None
item.processPDF(file, writer, context, registry, nbbox)
if context.textregion:
file.write("ET\n")
context.textregion = 0
context.selectedfont = None
# update bounding bbox
nbbox.transform(self.trafo)
if self.clipbbox is not None:
nbbox *= self.clipbbox
bbox += nbbox
file.write("Q\n") # grestore
def bbox(self):
bb = bbox.empty()
bb.includepoint_pt(*self.pdftrafo.apply_pt(0.0, 0.0))
bb.includepoint_pt(*self.pdftrafo.apply_pt(0.0, 1.0))
bb.includepoint_pt(*self.pdftrafo.apply_pt(1.0, 0.0))
bb.includepoint_pt(*self.pdftrafo.apply_pt(1.0, 1.0))
return bb
def __init__(self, page, writer, registry):
PDFobject.__init__(self, registry, "content")
contentfile = cStringIO.StringIO()
self.bbox = bbox.empty()
acontext = context()
page.processPDF(contentfile, writer, acontext, registry, self.bbox)
self.content = contentfile.getvalue()
contentfile.close()
def __init__(self, page, writer, registry):
PDFobject.__init__(self, registry, "content")
contentfile = cStringIO.StringIO()
self.bbox = bbox.empty()
acontext = context()
page.processPDF(contentfile, writer, acontext, registry, self.bbox)
self.content = contentfile.getvalue()
contentfile.close()
def bbox(self):
"""return bbox of path"""
if self.pathitems:
bbox = self.pathitems[0].createbbox()
context = self.pathitems[0].createcontext()
for pathitem in self.pathitems[1:]:
pathitem.updatebbox(bbox, context)
return bbox
else:
return bboxmodule.empty()
def processPS(self, file, writer, context, registry, bbox):
context = context()
if self.items:
file.write("gsave\n")
nbbox = bboxmodule.empty()
for item in self.items:
item.processPS(file, writer, context, registry, nbbox)
# update bounding bbox
nbbox.transform(self.trafo)
if self.clipbbox is not None:
nbbox *= self.clipbbox
bbox += nbbox
file.write("grestore\n")
def processPS(self, file, writer, context, registry, bbox):
context = context()
if self.items:
file.write("gsave\n")
nbbox = bboxmodule.empty()
for item in self.items:
item.processPS(file, writer, context, registry, nbbox)
# update bounding bbox
nbbox.transform(self.trafo)
if self.clipbbox is not None:
nbbox *= self.clipbbox
bbox += nbbox
file.write("grestore\n")
def __init__(self, document, file):
if len(document.pages) != 1:
raise ValueError(
"EPS file can be constructed out of a single page document only"
)
page = document.pages[0]
canvas = page.canvas
try:
file.write("")
except:
filename = file
if not filename.endswith(".eps"):
filename += ".eps"
try:
file = open(filename, "w")
except IOError:
raise IOError("cannot open output file")
else:
filename = "stream"
pagefile = cStringIO.StringIO()
registry = PSregistry()
acontext = context()
pagebbox = bbox.empty()
page.processPS(pagefile, self, acontext, registry, pagebbox)
file.write("%!PS-Adobe-3.0 EPSF-3.0\n")
if pagebbox:
file.write("%%%%BoundingBox: %d %d %d %d\n" %
pagebbox.lowrestuple_pt())
file.write("%%%%HiResBoundingBox: %g %g %g %g\n" %
pagebbox.highrestuple_pt())
file.write("%%%%Creator: PyX %s\n" % version.version)
file.write("%%%%Title: %s\n" % filename)
file.write("%%%%CreationDate: %s\n" %
time.asctime(time.localtime(time.time())))
file.write("%%EndComments\n")
file.write("%%BeginProlog\n")
registry.output(file, self)
file.write("%%EndProlog\n")
file.write(pagefile.getvalue())
pagefile.close()
file.write("showpage\n")
file.write("%%Trailer\n")
file.write("%%EOF\n")
def processPDF(self, file, writer, context, registry, bbox):
# we need to keep track of the resources used by the pattern, hence
# we create our own registry, which we merge immediately in the main registry
patternregistry = pdfwriter.PDFregistry()
patternfile = cStringIO.StringIO()
realpatternbbox = bboxmodule.empty()
canvas.canvas.processPDF(self, patternfile, writer,
pdfwriter.context(), patternregistry,
realpatternbbox)
patternproc = patternfile.getvalue()
patternfile.close()
registry.mergeregistry(patternregistry)
if self.xstep is None:
xstep = unit.topt(realpatternbbox.width())
else:
xstep = unit.topt(self.xstep)
if self.ystep is None:
ystep = unit.topt(realpatternbbox.height())
else:
ystep = unit.topt(self.ystep)
if not xstep:
raise ValueError("xstep in pattern cannot be zero")
if not ystep:
raise ValueError("ystep in pattern cannot be zero")
patternbbox = self.patternbbox or realpatternbbox.enlarged(5 * unit.pt)
patterntrafo = self.patterntrafo or trafo.trafo()
registry.add(
PDFpattern(self.id, self.patterntype, self.painttype,
self.tilingtype, patternbbox, xstep, ystep,
patterntrafo, patternproc, writer, registry,
patternregistry))
# activate pattern
if context.colorspace != "Pattern":
# we only set the fill color space (see next comment)
file.write("/Pattern cs\n")
context.colorspace = "Pattern"
if context.strokeattr:
# using patterns as stroke colors doesn't seem to work, so
# we just don't do this...
warnings.warn("ignoring stroke color for patterns in PDF")
if context.fillattr:
file.write("/%s scn\n" % self.id)
def bbox(self):
"""returns bounding box of canvas
Note that this bounding box doesn't take into account the linewidths, so
is less accurate than the one used when writing the output to a file.
"""
obbox = bboxmodule.empty()
for cmd in self.items:
obbox += cmd.bbox()
# transform according to our global transformation and
# intersect with clipping bounding box (which has already been
# transformed in canvas.__init__())
obbox.transform(self.trafo)
if self.clipbbox is not None:
obbox *= self.clipbbox
return obbox
def bbox(self):
"""returns bounding box of canvas
Note that this bounding box doesn't take into account the linewidths, so
is less accurate than the one used when writing the output to a file.
"""
obbox = bboxmodule.empty()
for cmd in self.items:
obbox += cmd.bbox()
# transform according to our global transformation and
# intersect with clipping bounding box (which has already been
# transformed in canvas.__init__())
obbox.transform(self.trafo)
if self.clipbbox is not None:
obbox *= self.clipbbox
return obbox
def __init__(self, document, file):
if len(document.pages) != 1:
raise ValueError("EPS file can be constructed out of a single page document only")
page = document.pages[0]
canvas = page.canvas
try:
file.write("")
except:
filename = file
if not filename.endswith(".eps"):
filename += ".eps"
try:
file = open(filename, "w")
except IOError:
raise IOError("cannot open output file")
else:
filename = "stream"
pagefile = cStringIO.StringIO()
registry = PSregistry()
acontext = context()
pagebbox = bbox.empty()
page.processPS(pagefile, self, acontext, registry, pagebbox)
file.write("%!PS-Adobe-3.0 EPSF-3.0\n")
if pagebbox:
file.write("%%%%BoundingBox: %d %d %d %d\n" % pagebbox.lowrestuple_pt())
file.write("%%%%HiResBoundingBox: %g %g %g %g\n" % pagebbox.highrestuple_pt())
file.write("%%%%Creator: PyX %s\n" % version.version)
file.write("%%%%Title: %s\n" % filename)
file.write("%%%%CreationDate: %s\n" %
time.asctime(time.localtime(time.time())))
file.write("%%EndComments\n")
file.write("%%BeginProlog\n")
registry.output(file, self)
file.write("%%EndProlog\n")
file.write(pagefile.getvalue())
pagefile.close()
file.write("showpage\n")
file.write("%%Trailer\n")
file.write("%%EOF\n")
def processPDF(self, file, writer, context, registry, bbox):
# we need to keep track of the resources used by the pattern, hence
# we create our own registry, which we merge immediately in the main registry
patternregistry = pdfwriter.PDFregistry()
patternfile = cStringIO.StringIO()
realpatternbbox = bboxmodule.empty()
canvas._canvas.processPDF(self, patternfile, writer, pdfwriter.context(), patternregistry, realpatternbbox)
patternproc = patternfile.getvalue()
patternfile.close()
registry.mergeregistry(patternregistry)
if self.xstep is None:
xstep = unit.topt(realpatternbbox.width())
else:
xstep = unit.topt(self.xstep)
if self.ystep is None:
ystep = unit.topt(realpatternbbox.height())
else:
ystep = unit.topt(self.ystep)
if not xstep:
raise ValueError("xstep in pattern cannot be zero")
if not ystep:
raise ValueError("ystep in pattern cannot be zero")
patternbbox = self.patternbbox or realpatternbbox.enlarged(5*unit.pt)
patterntrafo = self.patterntrafo or trafo.trafo()
registry.add(PDFpattern(self.id, self.patterntype, self.painttype, self.tilingtype,
patternbbox, xstep, ystep, patterntrafo, patternproc, writer, registry, patternregistry))
# activate pattern
if context.colorspace != "Pattern":
# we only set the fill color space (see next comment)
file.write("/Pattern cs\n")
context.colorspace = "Pattern"
if context.strokeattr:
# using patterns as stroke colors doesn't seem to work, so
# we just don't do this...
warnings.warn("ignoring stroke color for patterns in PDF")
if context.fillattr:
file.write("/%s scn\n"% self.id)
def processPS(self, file, writer, context, registry, bbox):
# process pattern, letting it register its resources and calculate the bbox of the pattern
patternfile = cStringIO.StringIO()
realpatternbbox = bboxmodule.empty()
canvas.canvas.processPS(self, patternfile, writer, pswriter.context(),
registry, realpatternbbox)
patternproc = patternfile.getvalue()
patternfile.close()
if self.xstep is None:
xstep = unit.topt(realpatternbbox.width())
else:
xstep = unit.topt(self.xstep)
if self.ystep is None:
ystep = unit.topt(realpatternbbox.height())
else:
ystep = unit.topt(self.ystep)
if not xstep:
raise ValueError("xstep in pattern cannot be zero")
if not ystep:
raise ValueError("ystep in pattern cannot be zero")
patternbbox = self.patternbbox or realpatternbbox.enlarged(
self.bboxenlarge)
patternprefix = "\n".join(
("<<", "/PatternType %d" % self.patterntype, "/PaintType %d" %
self.painttype, "/TilingType %d" % self.tilingtype,
"/BBox [%g %g %g %g]" % patternbbox.highrestuple_pt(),
"/XStep %g" % xstep, "/YStep %g" % ystep,
"/PaintProc {\nbegin\n"))
patterntrafostring = self.patterntrafo is None and "matrix" or str(
self.patterntrafo)
patternsuffix = "end\n} bind\n>>\n%s\nmakepattern" % patterntrafostring
registry.add(
pswriter.PSdefinition(
self.id, "".join((patternprefix, patternproc, patternsuffix))))
# activate pattern
file.write("%s setpattern\n" % self.id)
def processPS(self, file, writer, context, registry, bbox):
# process pattern, letting it register its resources and calculate the bbox of the pattern
patternfile = cStringIO.StringIO()
realpatternbbox = bboxmodule.empty()
canvas._canvas.processPS(self, patternfile, writer, pswriter.context(), registry, realpatternbbox)
patternproc = patternfile.getvalue()
patternfile.close()
if self.xstep is None:
xstep = unit.topt(realpatternbbox.width())
else:
xstep = unit.topt(self.xstep)
if self.ystep is None:
ystep = unit.topt(realpatternbbox.height())
else:
ystep = unit.topt(self.ystep)
if not xstep:
raise ValueError("xstep in pattern cannot be zero")
if not ystep:
raise ValueError("ystep in pattern cannot be zero")
patternbbox = self.patternbbox or realpatternbbox.enlarged(5*unit.pt)
patternprefix = "\n".join(("<<",
"/PatternType %d" % self.patterntype,
"/PaintType %d" % self.painttype,
"/TilingType %d" % self.tilingtype,
"/BBox[%d %d %d %d]" % patternbbox.lowrestuple_pt(),
"/XStep %g" % xstep,
"/YStep %g" % ystep,
"/PaintProc {\nbegin\n"))
patterntrafostring = self.patterntrafo is None and "matrix" or str(self.patterntrafo)
patternsuffix = "end\n} bind\n>>\n%s\nmakepattern" % patterntrafostring
registry.add(pswriter.PSdefinition(self.id, "".join((patternprefix, patternproc, patternsuffix))))
# activate pattern
file.write("%s setpattern\n" % self.id)
def __init__(self, document, file, **kwargs):
_PSwriter.__init__(self, **kwargs)
if len(document.pages) != 1:
raise ValueError(
"EPS file can be constructed out of a single page document only"
)
page = document.pages[0]
canvas = page.canvas
pagefile = cStringIO.StringIO()
registry = PSregistry()
acontext = context()
pagebbox = bbox.empty()
page.processPS(pagefile, self, acontext, registry, pagebbox)
file.write("%!PS-Adobe-3.0 EPSF-3.0\n")
if pagebbox:
file.write("%%%%BoundingBox: %d %d %d %d\n" %
pagebbox.lowrestuple_pt())
file.write("%%%%HiResBoundingBox: %g %g %g %g\n" %
pagebbox.highrestuple_pt())
self.writeinfo(file)
file.write("%%EndComments\n")
file.write("%%BeginProlog\n")
registry.output(file, self)
file.write("%%EndProlog\n")
file.write(pagefile.getvalue())
pagefile.close()
file.write("showpage\n")
file.write("%%Trailer\n")
file.write("%%EOF\n")
def bbox(self):
return bboxmodule.empty()
def bbox(self):
# TODO: see TODO in bbox method of canvasitem
return bboxmodule.empty()
def bbox(self):
# TODO: see TODO in bbox method of canvasitem
return bboxmodule.empty()
def bbox(self):
# as a canvasitem a clipping path has NO influence on the bbox...
return bboxmodule.empty()
def bbox(self):
# as a canvasitem a clipping path has NO influence on the bbox...
return bboxmodule.empty()
def __init__(self, document, file, writebbox=False, **kwargs):
_PSwriter.__init__(self, **kwargs)
# We first have to process the content of the pages, writing them into the stream pagesfile
# Doing so, we fill the registry and also calculate the page bounding boxes, which are
# stored in page._bbox for every page
pagesfile = cStringIO.StringIO()
registry = PSregistry()
# calculated bounding boxes of the whole document
documentbbox = bbox.empty()
for nr, page in enumerate(document.pages):
# process contents of page
pagefile = cStringIO.StringIO()
acontext = context()
pagebbox = bbox.empty()
page.processPS(pagefile, self, acontext, registry, pagebbox)
documentbbox += pagebbox
pagesfile.write("%%%%Page: %s %d\n" %
(page.pagename is None and str(nr + 1)
or page.pagename, nr + 1))
if page.paperformat:
pagesfile.write("%%%%PageMedia: %s\n" % page.paperformat.name)
pagesfile.write("%%%%PageOrientation: %s\n" %
(page.rotated and "Landscape" or "Portrait"))
if pagebbox and writebbox:
pagesfile.write("%%%%PageBoundingBox: %d %d %d %d\n" %
pagebbox.lowrestuple_pt())
# page setup section
pagesfile.write("%%BeginPageSetup\n")
pagesfile.write("/pgsave save def\n")
pagesfile.write("%%EndPageSetup\n")
pagesfile.write(pagefile.getvalue())
pagefile.close()
pagesfile.write("pgsave restore\n")
pagesfile.write("showpage\n")
pagesfile.write("%%PageTrailer\n")
file.write("%!PS-Adobe-3.0\n")
if documentbbox and writebbox:
file.write("%%%%BoundingBox: %d %d %d %d\n" %
documentbbox.lowrestuple_pt())
file.write("%%%%HiResBoundingBox: %g %g %g %g\n" %
documentbbox.highrestuple_pt())
self.writeinfo(file)
# required paper formats
paperformats = {}
for page in document.pages:
if page.paperformat:
paperformats[page.paperformat] = page.paperformat
first = 1
for paperformat in paperformats.values():
if first:
file.write("%%DocumentMedia: ")
first = 0
else:
file.write("%%+ ")
file.write("%s %d %d 75 white ()\n" %
(paperformat.name, unit.topt(
paperformat.width), unit.topt(paperformat.height)))
# file.write(%%DocumentNeededResources: ") # register not downloaded fonts here
file.write("%%%%Pages: %d\n" % len(document.pages))
file.write("%%PageOrder: Ascend\n")
file.write("%%EndComments\n")
# document defaults section
#file.write("%%BeginDefaults\n")
#file.write("%%EndDefaults\n")
# document prolog section
file.write("%%BeginProlog\n")
registry.output(file, self)
file.write("%%EndProlog\n")
# document setup section
#file.write("%%BeginSetup\n")
#file.write("%%EndSetup\n")
file.write(pagesfile.getvalue())
pagesfile.close()
file.write("%%Trailer\n")
file.write("%%EOF\n")
def __init__(self, document, file, writebbox=False, **kwargs):
_PSwriter.__init__(self, **kwargs)
# We first have to process the content of the pages, writing them into the stream pagesfile
# Doing so, we fill the registry and also calculate the page bounding boxes, which are
# stored in page._bbox for every page
pagesfile = cStringIO.StringIO()
registry = PSregistry()
# calculated bounding boxes of the whole document
documentbbox = bbox.empty()
for nr, page in enumerate(document.pages):
# process contents of page
pagefile = cStringIO.StringIO()
acontext = context()
pagebbox = bbox.empty()
page.processPS(pagefile, self, acontext, registry, pagebbox)
documentbbox += pagebbox
pagesfile.write("%%%%Page: %s %d\n" % (page.pagename is None and str(nr+1) or page.pagename, nr+1))
if page.paperformat:
pagesfile.write("%%%%PageMedia: %s\n" % page.paperformat.name)
pagesfile.write("%%%%PageOrientation: %s\n" % (page.rotated and "Landscape" or "Portrait"))
if pagebbox and writebbox:
pagesfile.write("%%%%PageBoundingBox: %d %d %d %d\n" % pagebbox.lowrestuple_pt())
# page setup section
pagesfile.write("%%BeginPageSetup\n")
pagesfile.write("/pgsave save def\n")
pagesfile.write("%%EndPageSetup\n")
pagesfile.write(pagefile.getvalue())
pagefile.close()
pagesfile.write("pgsave restore\n")
pagesfile.write("showpage\n")
pagesfile.write("%%PageTrailer\n")
file.write("%!PS-Adobe-3.0\n")
if documentbbox and writebbox:
file.write("%%%%BoundingBox: %d %d %d %d\n" % documentbbox.lowrestuple_pt())
file.write("%%%%HiResBoundingBox: %g %g %g %g\n" % documentbbox.highrestuple_pt())
self.writeinfo(file)
# required paper formats
paperformats = {}
for page in document.pages:
if page.paperformat:
paperformats[page.paperformat] = page.paperformat
first = 1
for paperformat in paperformats.values():
if first:
file.write("%%DocumentMedia: ")
first = 0
else:
file.write("%%+ ")
file.write("%s %d %d 75 white ()\n" % (paperformat.name,
unit.topt(paperformat.width),
unit.topt(paperformat.height)))
# file.write(%%DocumentNeededResources: ") # register not downloaded fonts here
file.write("%%%%Pages: %d\n" % len(document.pages))
file.write("%%PageOrder: Ascend\n")
file.write("%%EndComments\n")
# document defaults section
#file.write("%%BeginDefaults\n")
#file.write("%%EndDefaults\n")
# document prolog section
file.write("%%BeginProlog\n")
registry.output(file, self)
file.write("%%EndProlog\n")
# document setup section
#file.write("%%BeginSetup\n")
#file.write("%%EndSetup\n")
file.write(pagesfile.getvalue())
pagesfile.close()
file.write("%%Trailer\n")
file.write("%%EOF\n")
