def _listWrapOn(F, availWidth, canv, mergeSpace=1, obj=None, dims=None):
'''return max width, required height for a list of flowables F'''
doct = getattr(canv, '_doctemplate', None)
cframe = getattr(doct, 'frame', None)
if cframe:
from reportlab.platypus.doctemplate import _addGeneratedContent, Indenter
doct_frame = cframe
from copy import deepcopy
cframe = doct.frame = deepcopy(doct_frame)
cframe._generated_content = None
del cframe._generated_content
try:
W = 0
H = 0
pS = 0
atTop = 1
F = F[:]
while F:
f = F.pop(0)
if hasattr(f, 'frameAction'):
from reportlab.platypus.doctemplate import Indenter
if isinstance(f, Indenter):
availWidth -= f.left + f.right
continue
w, h = f.wrapOn(canv, availWidth, 0xfffffff)
if dims is not None: dims.append((w, h))
if cframe:
_addGeneratedContent(F, cframe)
if w <= fl._FUZZ or h <= fl._FUZZ: continue
#
# THE HACK
#
# W = max(W,min(availWidth, w))
W = max(W, w)
H += h
if not atTop:
h = f.getSpaceBefore()
if mergeSpace:
if getattr(f, '_SPACETRANSFER', False):
h = pS
h = max(h - pS, 0)
H += h
else:
if obj is not None: obj._spaceBefore = f.getSpaceBefore()
atTop = 0
s = f.getSpaceAfter()
if getattr(f, '_SPACETRANSFER', False):
s = pS
pS = s
H += pS
if obj is not None: obj._spaceAfter = pS
return W, H - pS
finally:
if cframe:
doct.frame = doct_frame
def _listWrapOn(F, availWidth, canv, mergeSpace=1, obj=None, dims=None):
'''return max width, required height for a list of flowables F'''
doct = getattr(canv, '_doctemplate', None)
cframe = getattr(doct, 'frame', None)
if cframe:
from reportlab.platypus.doctemplate import _addGeneratedContent, Indenter
doct_frame = cframe
from copy import deepcopy
cframe = doct.frame = deepcopy(doct_frame)
cframe._generated_content = None
del cframe._generated_content
try:
W = 0
H = 0
pS = 0
atTop = 1
F = F[:]
while F:
f = F.pop(0)
if hasattr(f, 'frameAction'):
from reportlab.platypus.doctemplate import Indenter
if isinstance(f, Indenter):
availWidth -= f.left + f.right
continue
w, h = f.wrapOn(canv, availWidth, 0xfffffff)
if dims is not None: dims.append((w, h))
if cframe:
_addGeneratedContent(F, cframe)
if w <= fl._FUZZ or h <= fl._FUZZ: continue
#
# THE HACK
#
# W = max(W,min(availWidth, w))
W = max(W, w)
H += h
if not atTop:
h = f.getSpaceBefore()
if mergeSpace:
if getattr(f, '_SPACETRANSFER', False):
h = pS
h = max(h - pS, 0)
H += h
else:
if obj is not None: obj._spaceBefore = f.getSpaceBefore()
atTop = 0
s = f.getSpaceAfter()
if getattr(f, '_SPACETRANSFER', False):
s = pS
pS = s
H += pS
if obj is not None: obj._spaceAfter = pS
return W, H - pS
finally:
if cframe:
doct.frame = doct_frame
def _listWrapOn(F, availWidth, canv, mergeSpace=1, obj=None, dims=None):
'''return max width, required height for a list of flowables F'''
doct = getattr(canv, '_doctemplate', None)
if doct:
from reportlab.platypus.doctemplate import _addGeneratedContent
doct_frame = doct.frame
cframe = doct.frame = deepcopy(doct_frame)
cframe._generated_content = None
del cframe._generated_content
else:
cframe = None
try:
W = 0
H = 0
pS = 0
atTop = 1
F = F[:]
while F:
f = F.pop(0)
if hasattr(f, 'frameAction'): continue
w, h = f.wrapOn(canv, availWidth, 0xfffffff)
if dims is not None: dims.append((w, h))
if cframe:
_addGeneratedContent(F, cframe)
if w <= _FUZZ or h <= _FUZZ: continue
W = max(W, w)
H += h
if not atTop:
h = f.getSpaceBefore()
if mergeSpace: h = max(h - pS, 0)
H += h
else:
if obj is not None: obj._spaceBefore = f.getSpaceBefore()
atTop = 0
pS = f.getSpaceAfter()
H += pS
if obj is not None: obj._spaceAfter = pS
return W, H - pS
finally:
if doct:
doct.frame = doct_frame
def _listWrapOn(F,availWidth,canv,mergeSpace=1,obj=None,dims=None):
'''return max width, required height for a list of flowables F'''
doct = getattr(canv,'_doctemplate',None)
if doct:
from reportlab.platypus.doctemplate import _addGeneratedContent
doct_frame = doct.frame
cframe = doct.frame = deepcopy(doct_frame)
cframe._generated_content = None
del cframe._generated_content
else:
cframe = None
try:
W = 0
H = 0
pS = 0
atTop = 1
F = F[:]
while F:
f = F.pop(0)
if hasattr(f,'frameAction'): continue
w,h = f.wrapOn(canv,availWidth,0xfffffff)
if dims is not None: dims.append((w,h))
if cframe:
_addGeneratedContent(F,cframe)
if w<=_FUZZ or h<=_FUZZ: continue
W = max(W,w)
H += h
if not atTop:
h = f.getSpaceBefore()
if mergeSpace: h = max(h-pS,0)
H += h
else:
if obj is not None: obj._spaceBefore = f.getSpaceBefore()
atTop = 0
pS = f.getSpaceAfter()
H += pS
if obj is not None: obj._spaceAfter = pS
return W, H-pS
finally:
if doct:
doct.frame = doct_frame
def handle_flowable(self, flowables):
"""
overriding base method!!!
try to handle one flowable from the front of list flowables.
added a dirty workaround to scale images
if their boundingBox exceeds the borders of the frame.
"""
#allow document a chance to look at, modify or ignore
#the object(s) about to be processed
self.filterFlowables(flowables)
self.handle_breakBefore(flowables)
self.handle_keepWithNext(flowables)
f = flowables[0]
del flowables[0]
if f is None:
return
if isinstance(f, PageBreak):
npt = f.nextTemplate
if npt and not self._samePT(npt):
npt = NextPageTemplate(npt)
npt.apply(self)
self.afterFlowable(npt)
if isinstance(f, SlowPageBreak):
self.handle_pageBreak(slow=1)
else:
#print( f.__class__.__name__, self.frame.id )
self.handle_pageBreak()
self.afterFlowable(f)
elif isinstance(f, ActionFlowable):
f.apply(self)
self.afterFlowable(f)
else:
frame = self.frame
canv = self.canv
if self.debug:
frame.drawBoundary(canv)
#handle scaling to fit a PdfImage on self.frame
if isinstance(f, Table):
pass # controls default behaviour for Table typed flowables
#f.setStyle([("GRID", (0, 0), (-1, -1), 0.5, colors.black)])
elif isinstance(f, Spacer):
pass
if isinstance(f, ap.PdfImage):
#print("height of image:",f.drawHeight)
#print("height of frame:",frame._aH)
xfactor = getattr(f, "_userScaleFactor", None)
factor = 1.
if xfactor is not None:
#print( "applying scale", xfactor)
factor = xfactor
f = self._scaleApply(f, factor)
setattr(f, "_userScaleFactor", None)
#resizing image if drawWidth is exceeding the available frame Width _aW
if f.drawWidth > frame._aW:
factor = frame._aW / f.drawWidth
f = self._scaleApply(f, factor)
if self.debug:
print("PdfImage exceeds available width on frame:",
frame.id, frame._aW / cm, frame._aH / cm,
f.drawWidth / cm, f.drawHeight / cm,
"rescaling to fit frame geometry.")
#resizing image if drawHeight is exceeding the available frame Width _aH
if f.drawHeight > frame._aH:
#print("PdfImage height exceeds height of available space on frame:",
# frame.id,
# "rescaling to fit frame geometry..." )
factor = frame._aH / f.drawHeight
f = self._scaleApply(f, factor)
#print("spaceBelow:",frame._aH-f.drawHeight )
#print("spaceBesides:",frame._aW-f.drawWidth )
#print(f.drawHeight)
#try to fit it then draw it
if frame.add(f, canv, trySplit=self.allowSplitting):
if not isinstance(f, FrameActionFlowable):
self._curPageFlowableCount += 1
self.afterFlowable(f)
_addGeneratedContent(flowables, frame)
else:
if self.allowSplitting:
# see if this is a splittable thing
S = frame.split(f, canv)
n = len(S)
else:
n = 0
if n:
if not isinstance(S[0], (PageBreak, SlowPageBreak,
ActionFlowable, DDIndenter)):
if not frame.add(S[0], canv, trySplit=0):
ident = "Splitting error(n==%d) on page %d in\n%s\nS[0]=%s" % \
(n,
self.page,
self._fIdent(f, 60, frame),
self._fIdent(S[0], 60, frame))
#leave to keep apart from the raise
raise LayoutError(ident)
self._curPageFlowableCount += 1
self.afterFlowable(S[0])
flowables[0:0] = S[
1:] # put rest of splitted flowables back on the list
_addGeneratedContent(flowables, frame)
else:
flowables[
0:0] = S # put splitted flowables back on the list
else:
if hasattr(f, '_postponed'):
pass
#print( f.__class__.__name__, self.frame.id, f.drawWidth, f.drawHeight, )
# ident = "Flowable %s%s too large on page %d in frame %r%s of template %r" % \
# (self._fIdent(f, 60, frame),
# _fSizeString(f),
# self.page,
# self.frame.id,
# self.frame._aSpaceString(),
# self.pageTemplate.id)
# #leave to keep apart from the raise
# raise LayoutError(ident)
# this ought to be cleared when they are finally drawn!
f._postponed = 1
mbe = getattr(self, '_multiBuildEdits', None)
if mbe:
mbe((delattr, f, '_postponed'))
# put the flowable back
flowables.insert(0, f)
self.handle_frameEnd()
