def wrap(self,availWidth,availHeight):
from doctemplate import LayoutError
mode = self.mode
maxWidth = float(min(self.maxWidth or availWidth,availWidth))
maxHeight = float(min(self.maxHeight or availHeight,availHeight))
W, H = _listWrapOn(self._content,maxWidth,self.canv)
if (mode=='error' and (W>maxWidth+_FUZZ or H>maxHeight+_FUZZ)):
ident = 'content %sx%s too large for %s' % (W,H,self.identity(30))
#leave to keep apart from the raise
raise LayoutError(ident)
elif W<=maxWidth+_FUZZ and H<=maxHeight+_FUZZ:
self.width = W-_FUZZ #we take what we get
self.height = H-_FUZZ
elif mode in ('overflow','truncate'): #we lie
self.width = min(maxWidth,W)-_FUZZ
self.height = min(maxHeight,H)-_FUZZ
else:
def func(x):
W, H = _listWrapOn(self._content,x*maxWidth,self.canv)
W /= x
H /= x
return W, H
W0 = W
H0 = H
s0 = 1
if W>maxWidth+_FUZZ:
#squeeze out the excess width and or Height
s1 = W/maxWidth
W, H = func(s1)
if H<=maxHeight+_FUZZ:
self.width = W-_FUZZ
self.height = H-_FUZZ
self._scale = s1
return W,H
s0 = s1
H0 = H
W0 = W
s1 = H/maxHeight
W, H = func(s1)
self.width = W-_FUZZ
self.height = H-_FUZZ
self._scale = s1
if H<min(0.95*maxHeight,maxHeight-10) or H>=maxHeight+_FUZZ:
#the standard case W should be OK, H is short we want
#to find the smallest s with H<=maxHeight
H1 = H
for f in 0, 0.01, 0.05, 0.10, 0.15:
#apply the quadratic model
s = _qsolve(maxHeight*(1-f),_hmodel(s0,s1,H0,H1))
W, H = func(s)
if H<=maxHeight+_FUZZ and W<=maxWidth+_FUZZ:
self.width = W-_FUZZ
self.height = H-_FUZZ
self._scale = s
break
return self.width, self.height
def wrap(self, aW, aH):
frame = self._frame
from reportlab.platypus.doctemplate import NextPageTemplate, CurrentFrameFlowable, LayoutError
G = [NextPageTemplate(self.nextTemplate)]
if aH < self.gap + self.required - _FUZZ:
#we are going straight to the nextTemplate with no attempt to modify the frames
G.append(PageBreak())
else:
#we are going to modify the incoming templates
templates = self._doctemplateAttr('pageTemplates')
if templates is None:
raise LayoutError('%s called in non-doctemplate environment' %
self.identity())
T = [t for t in templates if t.id == self.nextTemplate]
if not T:
raise LayoutError('%s.nextTemplate=%s not found' %
(self.identity(), self.nextTemplate))
T = T[0]
F = [f for f in T.frames if f.id in self.nextFrames]
N = [f.id for f in F]
N = [f for f in self.nextFrames if f not in N]
if N:
raise LayoutError(
'%s frames=%r not found in pageTemplate(%s)\n%r has frames %r'
% (self.identity(), N, T.id, T, [f.id for f in T.frames]))
T = self._doctemplateAttr('pageTemplate')
def unwrap(canv, doc, T=T, onPage=T.onPage, oldFrames=T.frames):
T.frames = oldFrames
T.onPage = onPage
onPage(canv, doc)
T.onPage = unwrap
h = aH - self.gap
for i, f in enumerate(F):
f = copy(f)
f.height = h
f._reset()
F[i] = f
T.frames = F
G.append(CurrentFrameFlowable(F[0].id))
frame.add_generated_content(*G)
return 0, 0
