src/reportlab/platypus/doctemplate.py
author robin
Tue, 19 Nov 2013 13:51:41 +0000
branchpy33
changeset 3795 2a6c4b74219f
parent 3760 674899ebab37
child 3850 52c3600611ec
permissions -rw-r--r--
doctemplate.py: fix isinstance usage
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#Copyright ReportLab Europe Ltd. 2000-2012
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#see license.txt for license details
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#history http://www.reportlab.co.uk/cgi-bin/viewcvs.cgi/public/reportlab/trunk/reportlab/platypus/doctemplate.py
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__version__=''' $Id$ '''
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__doc__="""
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This module contains the core structure of platypus.
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rlatypus constructs documents.  Document styles are determined by DocumentTemplates.
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Each DocumentTemplate contains one or more PageTemplates which defines the look of the
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pages of the document.
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Each PageTemplate has a procedure for drawing the "non-flowing" part of the page
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(for example the header, footer, page number, fixed logo graphic, watermark, etcetera) and
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a set of Frames which enclose the flowing part of the page (for example the paragraphs,
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tables, or non-fixed diagrams of the text).
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A document is built when a DocumentTemplate is fed a sequence of Flowables.
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The action of the build consumes the flowables in order and places them onto
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frames on pages as space allows.  When a frame runs out of space the next frame
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of the page is used.  If no frame remains a new page is created.  A new page
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can also be created if a page break is forced.
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The special invisible flowable NextPageTemplate can be used to specify
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the page template for the next page (which by default is the one being used
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for the current frame).
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"""
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from reportlab.platypus.flowables import *
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from reportlab.lib.units import inch
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from reportlab.platypus.paragraph import Paragraph
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from reportlab.platypus.frames import Frame
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from reportlab.rl_config import defaultPageSize, verbose
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import reportlab.lib.sequencer
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from reportlab.pdfgen import canvas
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from reportlab.lib.utils import isSeq
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try:
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    set
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except NameError:
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    from sets import Set as set
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from base64 import encodestring, decodestring
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try:
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    import pickle as pickle
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except ImportError:
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    import pickle
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dumps = pickle.dumps
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loads = pickle.loads
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import sys
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import logging
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logger = logging.getLogger("reportlab.platypus")
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class LayoutError(Exception):
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    pass
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def _fSizeString(f):
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    #used to get size during error messages
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    w=getattr(f,'width',None)
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    if w is None:
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        w=getattr(f,'_width',None)
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    h=getattr(f,'height',None)
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    if h is None:
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        h=getattr(f,'_height',None)
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    #tables in particular may have some nasty large culprit
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    if hasattr(f, '_culprit'):
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        c = ', %s, ' % f._culprit()
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    else:
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        c = ''
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    if w is not None or h is not None:
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        if w is None: w='???'
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        if h is None: h='???'
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        return '(%s x %s)%s' % (w,h,c)
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    return ''
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def _doNothing(canvas, doc):
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    "Dummy callback for onPage"
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    pass
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class PTCycle(list):
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    def __init__(self):
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        self._restart = 0
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        self._idx = 0
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        list.__init__(self)
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    def cyclicIterator(self):
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        while 1:
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            yield self[self._idx]
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            self._idx += 1
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            if self._idx>=len(self):
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                self._idx = self._restart
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class IndexingFlowable(Flowable):
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    """Abstract interface definition for flowables which might
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    hold references to other pages or themselves be targets
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    of cross-references.  XRefStart, XRefDest, Table of Contents,
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    Indexes etc."""
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    def isIndexing(self):
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        return 1
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    def isSatisfied(self):
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        return 1
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    def notify(self, kind, stuff):
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        """This will be called by the framework wherever 'stuff' happens.
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        'kind' will be a value that can be used to decide whether to
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        pay attention or not."""
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        pass
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    def beforeBuild(self):
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        """Called by multiBuild before it starts; use this to clear
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        old contents"""
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        pass
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    def afterBuild(self):
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        """Called after build ends but before isSatisfied"""
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        pass
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class ActionFlowable(Flowable):
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    '''This Flowable is never drawn, it can be used for data driven controls
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       For example to change a page template (from one column to two, for example)
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       use NextPageTemplate which creates an ActionFlowable.
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    '''
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    def __init__(self,action=()):
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        #must call super init to ensure it has a width and height (of zero),
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        #as in some cases the packer might get called on it...
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        Flowable.__init__(self)
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        if not isSeq(action):
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            action = (action,)
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        self.action = tuple(action)
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    def apply(self,doc):
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        '''
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        This is called by the doc.build processing to allow the instance to
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        implement its behaviour
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        '''
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        action = self.action[0]
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        args = tuple(self.action[1:])
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        arn = 'handle_'+action
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        if arn=="handle_nextPageTemplate" and args[0]=='main':
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            pass
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        try:
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            getattr(doc,arn)(*args)
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        except AttributeError as aerr:
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            if aerr.args[0]==arn:
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                raise NotImplementedError("Can't handle ActionFlowable(%s)" % action)
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            else:
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                raise
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        except:
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            t, v, tb = sys.exc_info()
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            raise t("%s\n   handle_%s args=%s"%(v,action,args)).with_traceback(tb)
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    def __call__(self):
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        return self
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    def identity(self, maxLen=None):
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        return "ActionFlowable: %s%s" % (str(self.action),self._frameName())
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class LCActionFlowable(ActionFlowable):
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    locChanger = 1                  #we cause a frame or page change
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    def wrap(self, availWidth, availHeight):
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        '''Should never be called.'''
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        raise NotImplementedError
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    def draw(self):
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        '''Should never be called.'''
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        raise NotImplementedError
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class NextFrameFlowable(ActionFlowable):
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    def __init__(self,ix,resume=0):
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        ActionFlowable.__init__(self,('nextFrame',ix,resume))
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class CurrentFrameFlowable(LCActionFlowable):
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    def __init__(self,ix,resume=0):
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        ActionFlowable.__init__(self,('currentFrame',ix,resume))
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class NullActionFlowable(ActionFlowable):
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    def apply(self,doc):
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        pass
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class _FrameBreak(LCActionFlowable):
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    '''
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    A special ActionFlowable that allows setting doc._nextFrameIndex
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    eg story.append(FrameBreak('mySpecialFrame'))
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    '''
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    def __call__(self,ix=None,resume=0):
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        r = self.__class__(self.action+(resume,))
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        r._ix = ix
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        return r
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    def apply(self,doc):
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        if getattr(self,'_ix',None):
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            doc.handle_nextFrame(self._ix)
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        ActionFlowable.apply(self,doc)
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FrameBreak = _FrameBreak('frameEnd')
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PageBegin = LCActionFlowable('pageBegin')
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def _evalMeasurement(n):
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    if isinstance(n,str):
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        from .paraparser import _num
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        n = _num(n)
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        if isSeq(n): n = n[1]
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    return n
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class FrameActionFlowable(Flowable):
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    _fixedWidth = _fixedHeight = 1
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    def __init__(self,*arg,**kw):
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        raise NotImplementedError('Abstract Class')
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    def frameAction(self,frame):
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        raise NotImplementedError('Abstract Class')
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class Indenter(FrameActionFlowable):
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    """Increases or decreases left and right margins of frame.
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    This allows one to have a 'context-sensitive' indentation
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    and makes nested lists way easier.
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    """
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    _ZEROSIZE=True
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    width=0
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    height=0
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    def __init__(self, left=0, right=0):
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        self.left = _evalMeasurement(left)
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        self.right = _evalMeasurement(right)
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    def frameAction(self, frame):
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        frame._leftExtraIndent += self.left
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        frame._rightExtraIndent += self.right
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class NotAtTopPageBreak(FrameActionFlowable):
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    def __init__(self):
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        pass
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    def frameAction(self,frame):
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        if not frame._atTop:
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            frame.add_generated_content(PageBreak())
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class NextPageTemplate(ActionFlowable):
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    """When you get to the next page, use the template specified (change to two column, for example)  """
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    def __init__(self,pt):
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        ActionFlowable.__init__(self,('nextPageTemplate',pt))
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class PageTemplate:
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    """
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    essentially a list of Frames and an onPage routine to call at the start
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    of a page when this is selected. onPageEnd gets called at the end.
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    derived classes can also implement beforeDrawPage and afterDrawPage if they want
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    """
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    def __init__(self,id=None,frames=[],onPage=_doNothing, onPageEnd=_doNothing,
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                 pagesize=None, autoNextPageTemplate=None):
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        frames = frames or []
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        if not isSeq(frames): frames = [frames]
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        assert [x for x in frames if not isinstance(x,Frame)]==[], "frames argument error"
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        self.id = id
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        self.frames = frames
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        self.onPage = onPage
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        self.onPageEnd = onPageEnd
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        self.pagesize = pagesize
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        self.autoNextPageTemplate = autoNextPageTemplate
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    def beforeDrawPage(self,canv,doc):
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        """Override this if you want additional functionality or prefer
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        a class based page routine.  Called before any flowables for
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        this page are processed."""
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        pass
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    def checkPageSize(self,canv,doc):
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        """This gets called by the template framework
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        If canv size != template size then the canv size is set to
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        the template size or if that's not available to the
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        doc size.
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        """
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        #### NEVER EVER EVER COMPARE FLOATS FOR EQUALITY
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        #RGB converting pagesizes to ints means we are accurate to one point
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        #RGB I suggest we should be aiming a little better
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        cp = None
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        dp = None
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        sp = None
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        if canv._pagesize: cp = list(map(int, canv._pagesize))
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        if self.pagesize: sp = list(map(int, self.pagesize))
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        if doc.pagesize: dp = list(map(int, doc.pagesize))
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        if cp!=sp:
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            if sp:
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                canv.setPageSize(self.pagesize)
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            elif cp!=dp:
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                canv.setPageSize(doc.pagesize)
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    def afterDrawPage(self, canv, doc):
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        """This is called after the last flowable for the page has
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        been processed.  You might use this if the page header or
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        footer needed knowledge of what flowables were drawn on
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        this page."""
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        pass
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def _addGeneratedContent(flowables,frame):
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    S = getattr(frame,'_generated_content',None)
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    if S: 
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        flowables[0:0] = S
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        del frame._generated_content
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class onDrawStr(str):
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    def __new__(cls,value,onDraw,label,kind=None):
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        self = str.__new__(cls,value)
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        self.onDraw = onDraw
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        self.kind = kind
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        self.label = label
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        return self
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class PageAccumulator:
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    '''gadget to accumulate information in a page
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    and then allow it to be interrogated at the end
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    of the page'''
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    _count = 0
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    def __init__(self,name=None):
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        if name is None:
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            name = self.__class__.__name__+str(self.__class__._count)
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            self.__class__._count += 1
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        self.name = name
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        self.data = []
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    def reset(self):
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        self.data[:] = []
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    def add(self,*args):
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        self.data.append(args)
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    def onDrawText(self,*args):
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        return '<onDraw name="%s" label="%s" />' % (self.name,encodestring(dumps(args)).strip())
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    def __call__(self,canv,kind,label):
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        self.add(*loads(decodestring(label)))
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    def attachToPageTemplate(self,pt):
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        if pt.onPage:
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            def onPage(canv,doc,oop=pt.onPage):
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                self.onPage(canv,doc)
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                oop(canv,doc)
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        else:
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            def onPage(canv,doc):
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                self.onPage(canv,doc)
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        pt.onPage = onPage
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        if pt.onPageEnd:
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            def onPageEnd(canv,doc,oop=pt.onPageEnd):
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                self.onPageEnd(canv,doc)
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                oop(canv,doc)
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        else:
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            def onPageEnd(canv,doc):
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   355
                self.onPageEnd(canv,doc)
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        pt.onPageEnd = onPageEnd
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   357
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    def onPage(self,canv,doc):
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        '''this will be called at the start of the page'''
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        setattr(canv,self.name,self)    #push ourselves onto the canvas
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        self.reset()
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   362
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    def onPageEnd(self,canv,doc):
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        '''this will be called at the end of a page'''
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        self.pageEndAction(canv,doc)
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        try:
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            delattr(canv,self.name)
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   368
        except:
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            pass
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        self.reset()
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   371
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    def pageEndAction(self,canv,doc):
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        '''this should be overridden to do something useful'''
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        pass
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   375
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    def onDrawStr(self,value,*args):
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   377
        return onDrawStr(value,self,encodestring(dumps(args)).strip())
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   378
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class BaseDocTemplate:
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   380
    """
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   381
    First attempt at defining a document template class.
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   382
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    The basic idea is simple.
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   384
    
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   385
    1)  The document has a list of data associated with it
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   386
        this data should derive from flowables. We'll have
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   387
        special classes like PageBreak, FrameBreak to do things
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        like forcing a page end etc.
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   389
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   390
    2)  The document has one or more page templates.
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   391
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   392
    3)  Each page template has one or more frames.
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   393
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   394
    4)  The document class provides base methods for handling the
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   395
        story events and some reasonable methods for getting the
1450177dd19e Exterminated all tab characters and added a test to make sure
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   396
        story flowables into the frames.
214
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diff changeset
   397
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   398
    5)  The document instances can override the base handler routines.
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rgbecker
parents: 1425
diff changeset
   399
1677
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   400
    Most of the methods for this class are not called directly by the user,
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   401
    but in some advanced usages they may need to be overridden via subclassing.
1428
13a13044e9a8 Fixed up keepWithNext so it works
rgbecker
parents: 1425
diff changeset
   402
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   403
    EXCEPTION: doctemplate.build(...) must be called for most reasonable uses
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   404
    since it builds a document using the page template.
1428
13a13044e9a8 Fixed up keepWithNext so it works
rgbecker
parents: 1425
diff changeset
   405
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   406
    Each document template builds exactly one document into a file specified
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   407
    by the filename argument on initialization.
197
b8ca098f5ec7 Initial try at a document template class
rgbecker
parents:
diff changeset
   408
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   409
    Possible keyword arguments for the initialization:
1428
13a13044e9a8 Fixed up keepWithNext so it works
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parents: 1425
diff changeset
   410
3031
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   411
    - pageTemplates: A list of templates.  Must be nonempty.  Names
1677
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   412
      assigned to the templates are used for referring to them so no two used
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   413
      templates should have the same name.  For example you might want one template
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   414
      for a title page, one for a section first page, one for a first page of
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   415
      a chapter and two more for the interior of a chapter on odd and even pages.
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   416
      If this argument is omitted then at least one pageTemplate should be provided
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   417
      using the addPageTemplates method before the document is built.
3031
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tim
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diff changeset
   418
    - pageSize: a 2-tuple or a size constant from reportlab/lib/pagesizes.pu.
6f90e7668adb docstrings cleaned up for epydoc
tim
parents: 3009
diff changeset
   419
      Used by the SimpleDocTemplate subclass which does NOT accept a list of
6f90e7668adb docstrings cleaned up for epydoc
tim
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diff changeset
   420
      pageTemplates but makes one for you; ignored when using pageTemplates.
2216
aadcd9dc9480 Font reregistration cleanup
andy_robinson
parents: 2200
diff changeset
   421
3031
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parents: 3009
diff changeset
   422
    - showBoundary: if set draw a box around the frame boundaries.
6f90e7668adb docstrings cleaned up for epydoc
tim
parents: 3009
diff changeset
   423
    - leftMargin:
6f90e7668adb docstrings cleaned up for epydoc
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diff changeset
   424
    - rightMargin:
6f90e7668adb docstrings cleaned up for epydoc
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diff changeset
   425
    - topMargin:
6f90e7668adb docstrings cleaned up for epydoc
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diff changeset
   426
    - bottomMargin:  Margin sizes in points (default 1 inch).  These margins may be
6f90e7668adb docstrings cleaned up for epydoc
tim
parents: 3009
diff changeset
   427
      overridden by the pageTemplates.  They are primarily of interest for the
6f90e7668adb docstrings cleaned up for epydoc
tim
parents: 3009
diff changeset
   428
      SimpleDocumentTemplate subclass.
6f90e7668adb docstrings cleaned up for epydoc
tim
parents: 3009
diff changeset
   429
    
6f90e7668adb docstrings cleaned up for epydoc
tim
parents: 3009
diff changeset
   430
    - allowSplitting:  If set flowables (eg, paragraphs) may be split across frames or pages
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   431
      (default: 1)
3031
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diff changeset
   432
    - title: Internal title for document (does not automatically display on any page)
6f90e7668adb docstrings cleaned up for epydoc
tim
parents: 3009
diff changeset
   433
    - author: Internal author for document (does not automatically display on any page)
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1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   434
    """
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   435
    _initArgs = {   'pagesize':defaultPageSize,
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   436
                    'pageTemplates':[],
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   437
                    'showBoundary':0,
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   438
                    'leftMargin':inch,
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   439
                    'rightMargin':inch,
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   440
                    'topMargin':inch,
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   441
                    'bottomMargin':inch,
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   442
                    'allowSplitting':1,
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   443
                    'title':None,
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   444
                    'author':None,
2666
a72c25280be2 facilitating saving info dictionary
andy
parents: 2664
diff changeset
   445
                    'subject':None,
3456
3143bbebbefe added PDF Creator to document info
andy
parents: 3443
diff changeset
   446
                    'creator':None,
2666
a72c25280be2 facilitating saving info dictionary
andy
parents: 2664
diff changeset
   447
                    'keywords':[],
1839
084e4af662dc Passing invariant argument through to canvas
andy_robinson
parents: 1838
diff changeset
   448
                    'invariant':None,
2531
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   449
                    'pageCompression':None,
2492
8142a1737889 doctemplate.py: add rotation argument to BaseDocTemplate
rgbecker
parents: 2491
diff changeset
   450
                    '_pageBreakQuick':1,
2531
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   451
                    'rotation':0,
3040
cb548ffb442d Added encrypt option to DocTemplate.
jonas
parents: 3031
diff changeset
   452
                    '_debug':0,
3110
c5b325f692ab reportlab: cropMarks more robust
rgbecker
parents: 3095
diff changeset
   453
                    'encrypt': None,
c5b325f692ab reportlab: cropMarks more robust
rgbecker
parents: 3095
diff changeset
   454
                    'cropMarks': None,
3443
64d1fba94908 reportlab: added preliminary support for enforcing color spaces
rgbecker
parents: 3384
diff changeset
   455
                    'enforceColorSpace': None,
3110
c5b325f692ab reportlab: cropMarks more robust
rgbecker
parents: 3095
diff changeset
   456
                    }
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   457
    _invalidInitArgs = ()
2104
f5e5b7a4fb29 Allow for different first page template index
rgbecker
parents: 2098
diff changeset
   458
    _firstPageTemplateIndex = 0
197
b8ca098f5ec7 Initial try at a document template class
rgbecker
parents:
diff changeset
   459
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
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diff changeset
   460
    def __init__(self, filename, **kw):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   461
        """create a document template bound to a filename (see class documentation for keyword arguments)"""
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   462
        self.filename = filename
2955
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
   463
        self._nameSpace = dict(doc=self)
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
   464
        self._lifetimes = {}
512
c12ae96634d5 Added working table of contents framework
andy_robinson
parents: 500
diff changeset
   465
3723
99aa837b6703 second stage of port to Python 3.3; working hello world
rptlab
parents: 3721
diff changeset
   466
        for k in self._initArgs.keys():
3326
ce725978d11c Initial Python3 compatibility fixes
damian
parents: 3323
diff changeset
   467
            if k not in kw:
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   468
                v = self._initArgs[k]
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   469
            else:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   470
                if k in self._invalidInitArgs:
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
   471
                    raise ValueError("Invalid argument %s" % k)
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   472
                v = kw[k]
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   473
            setattr(self,k,v)
310
cbec783cfb81 Documentation changes
rgbecker
parents: 305
diff changeset
   474
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   475
        p = self.pageTemplates
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   476
        self.pageTemplates = []
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   477
        self.addPageTemplates(p)
1428
13a13044e9a8 Fixed up keepWithNext so it works
rgbecker
parents: 1425
diff changeset
   478
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   479
        # facility to assist multi-build and cross-referencing.
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   480
        # various hooks can put things into here - key is what
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   481
        # you want, value is a page number.  This can then be
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   482
        # passed to indexing flowables.
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   483
        self._pageRefs = {}
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   484
        self._indexingFlowables = []
512
c12ae96634d5 Added working table of contents framework
andy_robinson
parents: 500
diff changeset
   485
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   486
        #callback facility for progress monitoring
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   487
        self._onPage = None
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   488
        self._onProgress = None
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   489
        self._flowableCount = 0  # so we know how far to go
1668
448a9205be12 Provision for callback progress monitoring in basic doctemplate class
andy_robinson
parents: 1530
diff changeset
   490
2192
955d4bf3b9d2 Candidate fix for infinite looping
andy_robinson
parents: 2127
diff changeset
   491
        #infinite loop detection if we start doing lots of empty pages
955d4bf3b9d2 Candidate fix for infinite looping
andy_robinson
parents: 2127
diff changeset
   492
        self._curPageFlowableCount = 0
955d4bf3b9d2 Candidate fix for infinite looping
andy_robinson
parents: 2127
diff changeset
   493
        self._emptyPages = 0
2193
e19196dc3942 Upped empty page limit to 10
andy_robinson
parents: 2192
diff changeset
   494
        self._emptyPagesAllowed = 10
2192
955d4bf3b9d2 Candidate fix for infinite looping
andy_robinson
parents: 2127
diff changeset
   495
1923
e692491f0967 Added relative indentation
andy_robinson
parents: 1839
diff changeset
   496
        #context sensitive margins - set by story, not from outside
e692491f0967 Added relative indentation
andy_robinson
parents: 1839
diff changeset
   497
        self._leftExtraIndent = 0.0
e692491f0967 Added relative indentation
andy_robinson
parents: 1839
diff changeset
   498
        self._rightExtraIndent = 0.0
3760
674899ebab37 platypus: FrameBG related stuff ifrom default that got lost somehow
robin
parents: 3731
diff changeset
   499
        self._frameBGs = []
2200
be0cfccc662a Fixed up tabs and whitespace in all source files
andy_robinson
parents: 2196
diff changeset
   500
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   501
        self._calc()
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   502
        self.afterInit()
1502
125b52eb0a8e Added callbacks throughout
andy_robinson
parents: 1440
diff changeset
   503
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   504
    def _calc(self):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   505
        self._rightMargin = self.pagesize[0] - self.rightMargin
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   506
        self._topMargin = self.pagesize[1] - self.topMargin
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   507
        self.width = self._rightMargin - self.leftMargin
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   508
        self.height = self._topMargin - self.bottomMargin
1502
125b52eb0a8e Added callbacks throughout
andy_robinson
parents: 1440
diff changeset
   509
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   510
    def setPageCallBack(self, func):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   511
        'Simple progress monitor - func(pageNo) called on each new page'
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   512
        self._onPage = func
197
b8ca098f5ec7 Initial try at a document template class
rgbecker
parents:
diff changeset
   513
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   514
    def setProgressCallBack(self, func):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   515
        '''Cleverer progress monitor - func(typ, value) called regularly'''
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   516
        self._onProgress = func
1668
448a9205be12 Provision for callback progress monitoring in basic doctemplate class
andy_robinson
parents: 1530
diff changeset
   517
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   518
    def clean_hanging(self):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   519
        'handle internal postponed actions'
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   520
        while len(self._hanging):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   521
            self.handle_flowable(self._hanging)
1428
13a13044e9a8 Fixed up keepWithNext so it works
rgbecker
parents: 1425
diff changeset
   522
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   523
    def addPageTemplates(self,pageTemplates):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   524
        'add one or a sequence of pageTemplates'
3731
b233dd0577ff another round of changes mostly type related
rptlab
parents: 3723
diff changeset
   525
        if not isSeq(pageTemplates):
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   526
            pageTemplates = [pageTemplates]
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   527
        #this test below fails due to inconsistent imports!
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   528
        #assert filter(lambda x: not isinstance(x,PageTemplate), pageTemplates)==[], "pageTemplates argument error"
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   529
        for t in pageTemplates:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   530
            self.pageTemplates.append(t)
1502
125b52eb0a8e Added callbacks throughout
andy_robinson
parents: 1440
diff changeset
   531
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   532
    def handle_documentBegin(self):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   533
        '''implement actions at beginning of document'''
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   534
        self._hanging = [PageBegin]
2104
f5e5b7a4fb29 Allow for different first page template index
rgbecker
parents: 2098
diff changeset
   535
        self.pageTemplate = self.pageTemplates[self._firstPageTemplateIndex]
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   536
        self.page = 0
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   537
        self.beforeDocument()
253
cfcf8d555a2c Platypus re-organisation
rgbecker
parents: 249
diff changeset
   538
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   539
    def handle_pageBegin(self):
2688
f9c4d1488516 doctemplate: apply T Heller's fix emacs syntax colouring patch
rgbecker
parents: 2672
diff changeset
   540
        """Perform actions required at beginning of page.
f9c4d1488516 doctemplate: apply T Heller's fix emacs syntax colouring patch
rgbecker
parents: 2672
diff changeset
   541
        shouldn't normally be called directly"""
2593
3adaab508968 reportlab: minor fixes to platypus, tests and fix jap splitting bug
rgbecker
parents: 2575
diff changeset
   542
        self.page += 1
2531
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   543
        if self._debug: logger.debug("beginning page %d" % self.page)
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   544
        self.pageTemplate.beforeDrawPage(self.canv,self)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   545
        self.pageTemplate.checkPageSize(self.canv,self)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   546
        self.pageTemplate.onPage(self.canv,self)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   547
        for f in self.pageTemplate.frames: f._reset()
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   548
        self.beforePage()
2192
955d4bf3b9d2 Candidate fix for infinite looping
andy_robinson
parents: 2127
diff changeset
   549
        #keep a count of flowables added to this page.  zero indicates bad stuff
955d4bf3b9d2 Candidate fix for infinite looping
andy_robinson
parents: 2127
diff changeset
   550
        self._curPageFlowableCount = 0
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   551
        if hasattr(self,'_nextFrameIndex'):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   552
            del self._nextFrameIndex
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   553
        self.frame = self.pageTemplate.frames[0]
2531
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   554
        self.frame._debug = self._debug
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   555
        self.handle_frameBegin()
197
b8ca098f5ec7 Initial try at a document template class
rgbecker
parents:
diff changeset
   556
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   557
    def handle_pageEnd(self):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   558
        ''' show the current page
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   559
            check the next page template
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   560
            hang a page begin
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   561
        '''
2957
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
   562
        self._removeVars(('page','frame'))
3519
eae7f1448301 doctemplate.py: fix transfer of extra indents in handle_pageBreak
rgbecker
parents: 3484
diff changeset
   563
        self._leftExtraIndent = self.frame._leftExtraIndent
eae7f1448301 doctemplate.py: fix transfer of extra indents in handle_pageBreak
rgbecker
parents: 3484
diff changeset
   564
        self._rightExtraIndent = self.frame._rightExtraIndent
3760
674899ebab37 platypus: FrameBG related stuff ifrom default that got lost somehow
robin
parents: 3731
diff changeset
   565
        self._frameBGs = self.frame._frameBGs
2192
955d4bf3b9d2 Candidate fix for infinite looping
andy_robinson
parents: 2127
diff changeset
   566
        #detect infinite loops...
955d4bf3b9d2 Candidate fix for infinite looping
andy_robinson
parents: 2127
diff changeset
   567
        if self._curPageFlowableCount == 0:
2593
3adaab508968 reportlab: minor fixes to platypus, tests and fix jap splitting bug
rgbecker
parents: 2575
diff changeset
   568
            self._emptyPages += 1
2192
955d4bf3b9d2 Candidate fix for infinite looping
andy_robinson
parents: 2127
diff changeset
   569
        else:
955d4bf3b9d2 Candidate fix for infinite looping
andy_robinson
parents: 2127
diff changeset
   570
            self._emptyPages = 0
955d4bf3b9d2 Candidate fix for infinite looping
andy_robinson
parents: 2127
diff changeset
   571
        if self._emptyPages >= self._emptyPagesAllowed:
2196
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   572
            if 1:
2466
0edb3b4ab6ff doctemplate.py: fix cgitb recursion problem
rgbecker
parents: 2460
diff changeset
   573
                ident = "More than %d pages generated without content - halting layout.  Likely that a flowable is too large for any frame." % self._emptyPagesAllowed
0edb3b4ab6ff doctemplate.py: fix cgitb recursion problem
rgbecker
parents: 2460
diff changeset
   574
                #leave to keep apart from the raise
0edb3b4ab6ff doctemplate.py: fix cgitb recursion problem
rgbecker
parents: 2460
diff changeset
   575
                raise LayoutError(ident)
2196
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   576
            else:
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   577
                pass    #attempt to restore to good state
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   578
        else:
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   579
            if self._onProgress:
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   580
                self._onProgress('PAGE', self.canv.getPageNumber())
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   581
            self.pageTemplate.afterDrawPage(self.canv, self)
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   582
            self.pageTemplate.onPageEnd(self.canv, self)
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   583
            self.afterPage()
2531
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   584
            if self._debug: logger.debug("ending page %d" % self.page)
2492
8142a1737889 doctemplate.py: add rotation argument to BaseDocTemplate
rgbecker
parents: 2491
diff changeset
   585
            self.canv.setPageRotation(getattr(self.pageTemplate,'rotation',self.rotation))
2196
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   586
            self.canv.showPage()
2418
9f4ad36c767f left/right template support
andy
parents: 2408
diff changeset
   587
9f4ad36c767f left/right template support
andy
parents: 2408
diff changeset
   588
            if hasattr(self,'_nextPageTemplateCycle'):
9f4ad36c767f left/right template support
andy
parents: 2408
diff changeset
   589
                #they are cycling through pages'; we keep the index
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
   590
                self.pageTemplate = next(self._nextPageTemplateCycle)
2418
9f4ad36c767f left/right template support
andy
parents: 2408
diff changeset
   591
            elif hasattr(self,'_nextPageTemplateIndex'):
2196
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   592
                self.pageTemplate = self.pageTemplates[self._nextPageTemplateIndex]
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   593
                del self._nextPageTemplateIndex
3563
3ba0d95480c9 doctemplate.py added support for PageTemplate.autoNextPageTemplate
rgbecker
parents: 3528
diff changeset
   594
            elif self.pageTemplate.autoNextPageTemplate:
3ba0d95480c9 doctemplate.py added support for PageTemplate.autoNextPageTemplate
rgbecker
parents: 3528
diff changeset
   595
                self.handle_nextPageTemplate(self.pageTemplate.autoNextPageTemplate)
3ba0d95480c9 doctemplate.py added support for PageTemplate.autoNextPageTemplate
rgbecker
parents: 3528
diff changeset
   596
                self.pageTemplate = self.pageTemplates[self._nextPageTemplateIndex]
2196
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   597
            if self._emptyPages==0:
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   598
                pass    #store good state here
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   599
        self._hanging.append(PageBegin)
197
b8ca098f5ec7 Initial try at a document template class
rgbecker
parents:
diff changeset
   600
2408
1c5e79611b59 flowables: add SlowPageBreak
rgbecker
parents: 2366
diff changeset
   601
    def handle_pageBreak(self,slow=None):
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   602
        '''some might choose not to end all the frames'''
2408
1c5e79611b59 flowables: add SlowPageBreak
rgbecker
parents: 2366
diff changeset
   603
        if self._pageBreakQuick and not slow:
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   604
            self.handle_pageEnd()
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   605
        else:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   606
            n = len(self._hanging)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   607
            while len(self._hanging)==n:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   608
                self.handle_frameEnd()
512
c12ae96634d5 Added working table of contents framework
andy_robinson
parents: 500
diff changeset
   609
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   610
    def handle_frameBegin(self,resume=0):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   611
        '''What to do at the beginning of a frame'''
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   612
        f = self.frame
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   613
        if f._atTop:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   614
            if self.showBoundary or self.frame.showBoundary:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   615
                self.frame.drawBoundary(self.canv)
1923
e692491f0967 Added relative indentation
andy_robinson
parents: 1839
diff changeset
   616
        f._leftExtraIndent = self._leftExtraIndent
e692491f0967 Added relative indentation
andy_robinson
parents: 1839
diff changeset
   617
        f._rightExtraIndent = self._rightExtraIndent
3760
674899ebab37 platypus: FrameBG related stuff ifrom default that got lost somehow
robin
parents: 3731
diff changeset
   618
        f._frameBGs = self._frameBGs
197
b8ca098f5ec7 Initial try at a document template class
rgbecker
parents:
diff changeset
   619
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   620
    def handle_frameEnd(self,resume=0):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   621
        ''' Handles the semantics of the end of a frame. This includes the selection of
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   622
            the next frame or if this is the last frame then invoke pageEnd.
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   623
        '''
2957
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
   624
        self._removeVars(('frame',))
1923
e692491f0967 Added relative indentation
andy_robinson
parents: 1839
diff changeset
   625
        self._leftExtraIndent = self.frame._leftExtraIndent
e692491f0967 Added relative indentation
andy_robinson
parents: 1839
diff changeset
   626
        self._rightExtraIndent = self.frame._rightExtraIndent
3760
674899ebab37 platypus: FrameBG related stuff ifrom default that got lost somehow
robin
parents: 3731
diff changeset
   627
        self._frameBGs = self.frame._frameBGs
1923
e692491f0967 Added relative indentation
andy_robinson
parents: 1839
diff changeset
   628
2950
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   629
        f = self.frame
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   630
        if hasattr(self,'_nextFrameIndex'):
2529
dced304f8584 flowables.py: keepInFrame now truncates etc properly, doctemplate.py: fix handle_frameEnd
rgbecker
parents: 2525
diff changeset
   631
            self.frame = self.pageTemplate.frames[self._nextFrameIndex]
2531
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   632
            self.frame._debug = self._debug
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   633
            del self._nextFrameIndex
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   634
            self.handle_frameBegin(resume)
2950
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   635
        elif hasattr(f,'lastFrame') or f is self.pageTemplate.frames[-1]:
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   636
            self.handle_pageEnd()
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   637
            self.frame = None
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   638
        else:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   639
            self.frame = self.pageTemplate.frames[self.pageTemplate.frames.index(f) + 1]
2531
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   640
            self.frame._debug = self._debug
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   641
            self.handle_frameBegin()
197
b8ca098f5ec7 Initial try at a document template class
rgbecker
parents:
diff changeset
   642
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   643
    def handle_nextPageTemplate(self,pt):
2449
47b15f941325 platypus: attempt to make KeepTogether/keepWithNext more robust
rgbecker
parents: 2418
diff changeset
   644
        '''On endPage change to the page template with name or index pt'''
3795
2a6c4b74219f doctemplate.py: fix isinstance usage
robin
parents: 3760
diff changeset
   645
        if isinstance(pt,str):
2418
9f4ad36c767f left/right template support
andy
parents: 2408
diff changeset
   646
            if hasattr(self, '_nextPageTemplateCycle'): del self._nextPageTemplateCycle
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   647
            for t in self.pageTemplates:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   648
                if t.id == pt:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   649
                    self._nextPageTemplateIndex = self.pageTemplates.index(t)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   650
                    return
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
   651
            raise ValueError("can't find template('%s')"%pt)
3731
b233dd0577ff another round of changes mostly type related
rptlab
parents: 3723
diff changeset
   652
        elif isinstance(pt,int):
2418
9f4ad36c767f left/right template support
andy
parents: 2408
diff changeset
   653
            if hasattr(self, '_nextPageTemplateCycle'): del self._nextPageTemplateCycle
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   654
            self._nextPageTemplateIndex = pt
3731
b233dd0577ff another round of changes mostly type related
rptlab
parents: 3723
diff changeset
   655
        elif isSeq(pt):
2418
9f4ad36c767f left/right template support
andy
parents: 2408
diff changeset
   656
            #used for alternating left/right pages
9f4ad36c767f left/right template support
andy
parents: 2408
diff changeset
   657
            #collect the refs to the template objects, complain if any are bad
2661
e179247ffea3 platypus: add * as shortcircuit template cycle notation
rgbecker
parents: 2654
diff changeset
   658
            c = PTCycle()
e179247ffea3 platypus: add * as shortcircuit template cycle notation
rgbecker
parents: 2654
diff changeset
   659
            for ptn in pt:
2418
9f4ad36c767f left/right template support
andy
parents: 2408
diff changeset
   660
                found = 0
2661
e179247ffea3 platypus: add * as shortcircuit template cycle notation
rgbecker
parents: 2654
diff changeset
   661
                if ptn=='*':    #special case name used to short circuit the iteration
e179247ffea3 platypus: add * as shortcircuit template cycle notation
rgbecker
parents: 2654
diff changeset
   662
                    c._restart = len(c)
e179247ffea3 platypus: add * as shortcircuit template cycle notation
rgbecker
parents: 2654
diff changeset
   663
                    continue
2418
9f4ad36c767f left/right template support
andy
parents: 2408
diff changeset
   664
                for t in self.pageTemplates:
2661
e179247ffea3 platypus: add * as shortcircuit template cycle notation
rgbecker
parents: 2654
diff changeset
   665
                    if t.id == ptn:
e179247ffea3 platypus: add * as shortcircuit template cycle notation
rgbecker
parents: 2654
diff changeset
   666
                        c.append(t)
2418
9f4ad36c767f left/right template support
andy
parents: 2408
diff changeset
   667
                        found = 1
9f4ad36c767f left/right template support
andy
parents: 2408
diff changeset
   668
                if not found:
3161
5717a3003dc3 doctemplate.py: fix varname
rgbecker
parents: 3131
diff changeset
   669
                    raise ValueError("Cannot find page template called %s" % ptn)
2661
e179247ffea3 platypus: add * as shortcircuit template cycle notation
rgbecker
parents: 2654
diff changeset
   670
            if not c:
e179247ffea3 platypus: add * as shortcircuit template cycle notation
rgbecker
parents: 2654
diff changeset
   671
                raise ValueError("No valid page templates in cycle")
e179247ffea3 platypus: add * as shortcircuit template cycle notation
rgbecker
parents: 2654
diff changeset
   672
            elif c._restart>len(c):
e179247ffea3 platypus: add * as shortcircuit template cycle notation
rgbecker
parents: 2654
diff changeset
   673
                raise ValueError("Invalid cycle restart position")
e179247ffea3 platypus: add * as shortcircuit template cycle notation
rgbecker
parents: 2654
diff changeset
   674
2418
9f4ad36c767f left/right template support
andy
parents: 2408
diff changeset
   675
            #ensure we start on the first one
2661
e179247ffea3 platypus: add * as shortcircuit template cycle notation
rgbecker
parents: 2654
diff changeset
   676
            self._nextPageTemplateCycle = c.cyclicIterator()
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   677
        else:
2950
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   678
            raise TypeError("argument pt should be string or integer or list")
197
b8ca098f5ec7 Initial try at a document template class
rgbecker
parents:
diff changeset
   679
2529
dced304f8584 flowables.py: keepInFrame now truncates etc properly, doctemplate.py: fix handle_frameEnd
rgbecker
parents: 2525
diff changeset
   680
    def handle_nextFrame(self,fx,resume=0):
2449
47b15f941325 platypus: attempt to make KeepTogether/keepWithNext more robust
rgbecker
parents: 2418
diff changeset
   681
        '''On endFrame change to the frame with name or index fx'''
3731
b233dd0577ff another round of changes mostly type related
rptlab
parents: 3723
diff changeset
   682
        if isinstance(fx,str):
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   683
            for f in self.pageTemplate.frames:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   684
                if f.id == fx:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   685
                    self._nextFrameIndex = self.pageTemplate.frames.index(f)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   686
                    return
2950
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   687
            raise ValueError("can't find frame('%s') in %r(%s) which has frames %r"%(fx,self.pageTemplate,self.pageTemplate.id,[(f,f.id) for f in self.pageTemplate.frames]))
3731
b233dd0577ff another round of changes mostly type related
rptlab
parents: 3723
diff changeset
   688
        elif isinstance(fx,int):
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   689
            self._nextFrameIndex = fx
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   690
        else:
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
   691
            raise TypeError("argument fx should be string or integer")
512
c12ae96634d5 Added working table of contents framework
andy_robinson
parents: 500
diff changeset
   692
2529
dced304f8584 flowables.py: keepInFrame now truncates etc properly, doctemplate.py: fix handle_frameEnd
rgbecker
parents: 2525
diff changeset
   693
    def handle_currentFrame(self,fx,resume=0):
2449
47b15f941325 platypus: attempt to make KeepTogether/keepWithNext more robust
rgbecker
parents: 2418
diff changeset
   694
        '''change to the frame with name or index fx'''
2529
dced304f8584 flowables.py: keepInFrame now truncates etc properly, doctemplate.py: fix handle_frameEnd
rgbecker
parents: 2525
diff changeset
   695
        self.handle_nextFrame(fx,resume)
dced304f8584 flowables.py: keepInFrame now truncates etc properly, doctemplate.py: fix handle_frameEnd
rgbecker
parents: 2525
diff changeset
   696
        self.handle_frameEnd(resume)
197
b8ca098f5ec7 Initial try at a document template class
rgbecker
parents:
diff changeset
   697
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   698
    def handle_breakBefore(self, flowables):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   699
        '''preprocessing step to allow pageBreakBefore and frameBreakBefore attributes'''
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   700
        first = flowables[0]
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   701
        # if we insert a page break before, we'll process that, see it again,
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   702
        # and go in an infinite loop.  So we need to set a flag on the object
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   703
        # saying 'skip me'.  This should be unset on the next pass
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   704
        if hasattr(first, '_skipMeNextTime'):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   705
            delattr(first, '_skipMeNextTime')
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   706
            return
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   707
        # this could all be made much quicker by putting the attributes
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   708
        # in to the flowables with a defult value of 0
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   709
        if hasattr(first,'pageBreakBefore') and first.pageBreakBefore == 1:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   710
            first._skipMeNextTime = 1
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   711
            first.insert(0, PageBreak())
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   712
            return
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   713
        if hasattr(first,'style') and hasattr(first.style, 'pageBreakBefore') and first.style.pageBreakBefore == 1:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   714
            first._skipMeNextTime = 1
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   715
            flowables.insert(0, PageBreak())
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   716
            return
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   717
        if hasattr(first,'frameBreakBefore') and first.frameBreakBefore == 1:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   718
            first._skipMeNextTime = 1
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   719
            flowables.insert(0, FrameBreak())
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   720
            return
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   721
        if hasattr(first,'style') and hasattr(first.style, 'frameBreakBefore') and first.style.frameBreakBefore == 1:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   722
            first._skipMeNextTime = 1
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   723
            flowables.insert(0, FrameBreak())
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   724
            return
1428
13a13044e9a8 Fixed up keepWithNext so it works
rgbecker
parents: 1425
diff changeset
   725
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   726
    def handle_keepWithNext(self, flowables):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   727
        "implements keepWithNext"
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   728
        i = 0
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   729
        n = len(flowables)
2449
47b15f941325 platypus: attempt to make KeepTogether/keepWithNext more robust
rgbecker
parents: 2418
diff changeset
   730
        while i<n and flowables[i].getKeepWithNext(): i += 1
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   731
        if i:
2664
c9faa3a99e93 reportlab/platypus: <br/> tags now working
rgbecker
parents: 2661
diff changeset
   732
            if i<n and not getattr(flowables[i],'locChanger',None): i += 1
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   733
            K = KeepTogether(flowables[:i])
2995
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   734
            mbe = getattr(self,'_multiBuildEdits',None)
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   735
            if mbe:
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   736
                for f in K._content[:-1]:
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   737
                    if hasattr(f,'keepWithNext'):
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   738
                        mbe((setattr,f,'keepWithNext',f.keepWithNext))
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   739
                    else:
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   740
                        mbe((delattr,f,'keepWithNext')) #must get it from a style
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   741
                    f.__dict__['keepWithNext'] = 0
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   742
            else:
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   743
                for f in K._content[:-1]:
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   744
                    f.__dict__['keepWithNext'] = 0
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   745
            del flowables[:i]
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   746
            flowables.insert(0,K)
1425
fa9f74f1a701 Experiments with platypus
andy_robinson
parents: 1324
diff changeset
   747
2531
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   748
    def _fIdent(self,f,maxLen=None,frame=None):
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   749
        if frame: f._frame = frame
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   750
        try:
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   751
            return f.identity(maxLen)
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   752
        finally:
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   753
            if frame: del f._frame
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   754
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   755
    def handle_flowable(self,flowables):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   756
        '''try to handle one flowable from the front of list flowables.'''
1428
13a13044e9a8 Fixed up keepWithNext so it works
rgbecker
parents: 1425
diff changeset
   757
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   758
        #allow document a chance to look at, modify or ignore
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   759
        #the object(s) about to be processed
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   760
        self.filterFlowables(flowables)
1428
13a13044e9a8 Fixed up keepWithNext so it works
rgbecker
parents: 1425
diff changeset
   761
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   762
        self.handle_breakBefore(flowables)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   763
        self.handle_keepWithNext(flowables)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   764
        f = flowables[0]
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   765
        del flowables[0]
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   766
        if f is None:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   767
            return
197
b8ca098f5ec7 Initial try at a document template class
rgbecker
parents:
diff changeset
   768
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   769
        if isinstance(f,PageBreak):
2408
1c5e79611b59 flowables: add SlowPageBreak
rgbecker
parents: 2366
diff changeset
   770
            if isinstance(f,SlowPageBreak):
1c5e79611b59 flowables: add SlowPageBreak
rgbecker
parents: 2366
diff changeset
   771
                self.handle_pageBreak(slow=1)
1c5e79611b59 flowables: add SlowPageBreak
rgbecker
parents: 2366
diff changeset
   772
            else:
1c5e79611b59 flowables: add SlowPageBreak
rgbecker
parents: 2366
diff changeset
   773
                self.handle_pageBreak()
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   774
            self.afterFlowable(f)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   775
        elif isinstance(f,ActionFlowable):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   776
            f.apply(self)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   777
            self.afterFlowable(f)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   778
        else:
2762
48eadc6faff2 platypus: added in NotAtTopPageBreak and support
rgbecker
parents: 2688
diff changeset
   779
            frame = self.frame
2950
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   780
            canv = self.canv
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   781
            #try to fit it then draw it
2950
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   782
            if frame.add(f, canv, trySplit=self.allowSplitting):
2762
48eadc6faff2 platypus: added in NotAtTopPageBreak and support
rgbecker
parents: 2688
diff changeset
   783
                if not isinstance(f,FrameActionFlowable):
48eadc6faff2 platypus: added in NotAtTopPageBreak and support
rgbecker
parents: 2688
diff changeset
   784
                    self._curPageFlowableCount += 1
48eadc6faff2 platypus: added in NotAtTopPageBreak and support
rgbecker
parents: 2688
diff changeset
   785
                    self.afterFlowable(f)
3009
71ae9bbac9fb reportlab: attempt fix to docIf vs keepTogether
rgbecker
parents: 2998
diff changeset
   786
                _addGeneratedContent(flowables,frame)
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   787
            else:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   788
                if self.allowSplitting:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   789
                    # see if this is a splittable thing
2950
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   790
                    S = frame.split(f,canv)
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   791
                    n = len(S)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   792
                else:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   793
                    n = 0
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   794
                if n:
3528
5c3249611b60 doctemplate/flowables.py: fix DDIndenter split issue
rgbecker
parents: 3523
diff changeset
   795
                    if not isinstance(S[0],(PageBreak,SlowPageBreak,ActionFlowable,DDIndenter)):
3323
8fe71f699df9 doctemplate.py: fix bug in order of split[0] generated content contributed by Robert Hölzl <robert.hoelzl@baltech.de>
rgbecker
parents: 3272
diff changeset
   796
                        if not frame.add(S[0], canv, trySplit=0):
3484
9c12031155ba platypus: fix splitting for ListFlowables (maybe)
rgbecker
parents: 3456
diff changeset
   797
                            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))
2575
0cba68b93555 reportlab-utf8 moved to trunk
rgbecker
parents: 2531
diff changeset
   798
                            #leave to keep apart from the raise
0cba68b93555 reportlab-utf8 moved to trunk
rgbecker
parents: 2531
diff changeset
   799
                            raise LayoutError(ident)
3323
8fe71f699df9 doctemplate.py: fix bug in order of split[0] generated content contributed by Robert Hölzl <robert.hoelzl@baltech.de>
rgbecker
parents: 3272
diff changeset
   800
                        self._curPageFlowableCount += 1
8fe71f699df9 doctemplate.py: fix bug in order of split[0] generated content contributed by Robert Hölzl <robert.hoelzl@baltech.de>
rgbecker
parents: 3272
diff changeset
   801
                        self.afterFlowable(S[0])
8fe71f699df9 doctemplate.py: fix bug in order of split[0] generated content contributed by Robert Hölzl <robert.hoelzl@baltech.de>
rgbecker
parents: 3272
diff changeset
   802
                        flowables[0:0] = S[1:]  # put rest of splitted flowables back on the list
8fe71f699df9 doctemplate.py: fix bug in order of split[0] generated content contributed by Robert Hölzl <robert.hoelzl@baltech.de>
rgbecker
parents: 3272
diff changeset
   803
                        _addGeneratedContent(flowables,frame)
8fe71f699df9 doctemplate.py: fix bug in order of split[0] generated content contributed by Robert Hölzl <robert.hoelzl@baltech.de>
rgbecker
parents: 3272
diff changeset
   804
                    else:
8fe71f699df9 doctemplate.py: fix bug in order of split[0] generated content contributed by Robert Hölzl <robert.hoelzl@baltech.de>
rgbecker
parents: 3272
diff changeset
   805
                        flowables[0:0] = S  # put splitted flowables back on the list
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   806
                else:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   807
                    if hasattr(f,'_postponed'):
3131
0f15fabe9d8d reportlab: improve information in doctemplate overflow error
rgbecker
parents: 3129
diff changeset
   808
                        ident = "Flowable %s%s too large on page %d in frame %r%s of template %r" % \
0f15fabe9d8d reportlab: improve information in doctemplate overflow error
rgbecker
parents: 3129
diff changeset
   809
                                (self._fIdent(f,60,frame),_fSizeString(f),self.page, self.frame.id,
0f15fabe9d8d reportlab: improve information in doctemplate overflow error
rgbecker
parents: 3129
diff changeset
   810
                                        self.frame._aSpaceString(), self.pageTemplate.id)
2466
0edb3b4ab6ff doctemplate.py: fix cgitb recursion problem
rgbecker
parents: 2460
diff changeset
   811
                        #leave to keep apart from the raise
0edb3b4ab6ff doctemplate.py: fix cgitb recursion problem
rgbecker
parents: 2460
diff changeset
   812
                        raise LayoutError(ident)
2196
c04e09c8635e Allow for simple loop detection
rgbecker
parents: 2193
diff changeset
   813
                    # this ought to be cleared when they are finally drawn!
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   814
                    f._postponed = 1
2998
efe6a1d93dd2 doctemplate.py: robustify access to _multiBuildEdits
rgbecker
parents: 2996
diff changeset
   815
                    mbe = getattr(self,'_multiBuildEdits',None)
efe6a1d93dd2 doctemplate.py: robustify access to _multiBuildEdits
rgbecker
parents: 2996
diff changeset
   816
                    if mbe:
efe6a1d93dd2 doctemplate.py: robustify access to _multiBuildEdits
rgbecker
parents: 2996
diff changeset
   817
                        mbe((delattr,f,'_postponed'))
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   818
                    flowables.insert(0,f)           # put the flowable back
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   819
                    self.handle_frameEnd()
197
b8ca098f5ec7 Initial try at a document template class
rgbecker
parents:
diff changeset
   820
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   821
    #these are provided so that deriving classes can refer to them
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   822
    _handle_documentBegin = handle_documentBegin
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   823
    _handle_pageBegin = handle_pageBegin
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   824
    _handle_pageEnd = handle_pageEnd
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   825
    _handle_frameBegin = handle_frameBegin
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   826
    _handle_frameEnd = handle_frameEnd
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   827
    _handle_flowable = handle_flowable
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   828
    _handle_nextPageTemplate = handle_nextPageTemplate
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   829
    _handle_currentFrame = handle_currentFrame
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   830
    _handle_nextFrame = handle_nextFrame
1505
e45994cb76bb Allow non-save builds
rgbecker
parents: 1502
diff changeset
   831
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   832
    def _startBuild(self, filename=None, canvasmaker=canvas.Canvas):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   833
        self._calc()
2923
b5c8043382fc some improvements to tests and error tracebacks
andy
parents: 2885
diff changeset
   834
b5c8043382fc some improvements to tests and error tracebacks
andy
parents: 2885
diff changeset
   835
        #each distinct pass gets a sequencer
b5c8043382fc some improvements to tests and error tracebacks
andy
parents: 2885
diff changeset
   836
        self.seq = reportlab.lib.sequencer.Sequencer()
2955
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
   837
1839
084e4af662dc Passing invariant argument through to canvas
andy_robinson
parents: 1838
diff changeset
   838
        self.canv = canvasmaker(filename or self.filename,
084e4af662dc Passing invariant argument through to canvas
andy_robinson
parents: 1838
diff changeset
   839
                                pagesize=self.pagesize,
2531
40b6f4b41f7c platypus: changes to make identity more useful
rgbecker
parents: 2529
diff changeset
   840
                                invariant=self.invariant,
3443
64d1fba94908 reportlab: added preliminary support for enforcing color spaces
rgbecker
parents: 3384
diff changeset
   841
                                pageCompression=self.pageCompression,
64d1fba94908 reportlab: added preliminary support for enforcing color spaces
rgbecker
parents: 3384
diff changeset
   842
                                enforceColorSpace=self.enforceColorSpace,
64d1fba94908 reportlab: added preliminary support for enforcing color spaces
rgbecker
parents: 3384
diff changeset
   843
                                )
3040
cb548ffb442d Added encrypt option to DocTemplate.
jonas
parents: 3031
diff changeset
   844
 
3048
3ff2383916b9 Renamed setencrypt to setEncrypt to follow naming convention.
jonas
parents: 3040
diff changeset
   845
        getattr(self.canv,'setEncrypt',lambda x: None)(self.encrypt)
2666
a72c25280be2 facilitating saving info dictionary
andy
parents: 2664
diff changeset
   846
3110
c5b325f692ab reportlab: cropMarks more robust
rgbecker
parents: 3095
diff changeset
   847
        self.canv._cropMarks = self.cropMarks
2666
a72c25280be2 facilitating saving info dictionary
andy
parents: 2664
diff changeset
   848
        self.canv.setAuthor(self.author)
a72c25280be2 facilitating saving info dictionary
andy
parents: 2664
diff changeset
   849
        self.canv.setTitle(self.title)
a72c25280be2 facilitating saving info dictionary
andy
parents: 2664
diff changeset
   850
        self.canv.setSubject(self.subject)
3456
3143bbebbefe added PDF Creator to document info
andy
parents: 3443
diff changeset
   851
        self.canv.setCreator(self.creator)
2666
a72c25280be2 facilitating saving info dictionary
andy
parents: 2664
diff changeset
   852
        self.canv.setKeywords(self.keywords)
2762
48eadc6faff2 platypus: added in NotAtTopPageBreak and support
rgbecker
parents: 2688
diff changeset
   853
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   854
        if self._onPage:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   855
            self.canv.setPageCallBack(self._onPage)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   856
        self.handle_documentBegin()
512
c12ae96634d5 Added working table of contents framework
andy_robinson
parents: 500
diff changeset
   857
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   858
    def _endBuild(self):
2957
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
   859
        self._removeVars(('build','page','frame'))
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   860
        if self._hanging!=[] and self._hanging[-1] is PageBegin:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   861
            del self._hanging[-1]
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   862
            self.clean_hanging()
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   863
        else:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   864
            self.clean_hanging()
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   865
            self.handle_pageBreak()
1505
e45994cb76bb Allow non-save builds
rgbecker
parents: 1502
diff changeset
   866
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   867
        if getattr(self,'_doSave',1): self.canv.save()
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   868
        if self._onPage: self.canv.setPageCallBack(None)
512
c12ae96634d5 Added working table of contents framework
andy_robinson
parents: 500
diff changeset
   869
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   870
    def build(self, flowables, filename=None, canvasmaker=canvas.Canvas):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   871
        """Build the document from a list of flowables.
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   872
           If the filename argument is provided then that filename is used
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   873
           rather than the one provided upon initialization.
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   874
           If the canvasmaker argument is provided then it will be used
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   875
           instead of the default.  For example a slideshow might use
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   876
           an alternate canvas which places 6 slides on a page (by
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   877
           doing translations, scalings and redefining the page break
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   878
           operations).
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   879
        """
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   880
        #assert filter(lambda x: not isinstance(x,Flowable), flowables)==[], "flowables argument error"
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   881
        flowableCount = len(flowables)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   882
        if self._onProgress:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   883
            self._onProgress('STARTED',0)
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   884
            self._onProgress('SIZE_EST', len(flowables))
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   885
        self._startBuild(filename,canvasmaker)
512
c12ae96634d5 Added working table of contents framework
andy_robinson
parents: 500
diff changeset
   886
2666
a72c25280be2 facilitating saving info dictionary
andy
parents: 2664
diff changeset
   887
        #pagecatcher can drag in information from embedded PDFs and we want ours
a72c25280be2 facilitating saving info dictionary
andy
parents: 2664
diff changeset
   888
        #to take priority, so cache and reapply our own info dictionary after the build.
2950
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   889
        canv = self.canv
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   890
        self._savedInfo = canv._doc.info
2666
a72c25280be2 facilitating saving info dictionary
andy
parents: 2664
diff changeset
   891
        handled = 0
2950
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   892
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   893
        try:
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   894
            canv._doctemplate = self
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   895
            while len(flowables):
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   896
                self.clean_hanging()
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   897
                try:
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   898
                    first = flowables[0]
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   899
                    self.handle_flowable(flowables)
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   900
                    handled += 1
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   901
                except:
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   902
                    #if it has trace info, add it to the traceback message.
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   903
                    if hasattr(first, '_traceInfo') and first._traceInfo:
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   904
                        exc = sys.exc_info()[1]
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   905
                        args = list(exc.args)
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   906
                        tr = first._traceInfo
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   907
                        args[0] += '\n(srcFile %s, line %d char %d to line %d char %d)' % (
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   908
                            tr.srcFile,
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   909
                            tr.startLineNo,
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   910
                            tr.startLinePos,
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   911
                            tr.endLineNo,
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   912
                            tr.endLinePos
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   913
                            )
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   914
                        exc.args = tuple(args)
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   915
                    raise
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   916
                if self._onProgress:
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   917
                    self._onProgress('PROGRESS',flowableCount - len(flowables))
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   918
        finally:
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   919
            del canv._doctemplate
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   920
1505
e45994cb76bb Allow non-save builds
rgbecker
parents: 1502
diff changeset
   921
2666
a72c25280be2 facilitating saving info dictionary
andy
parents: 2664
diff changeset
   922
        #reapply pagecatcher info
2950
6c243412b06c platypus: add support for FramSplitter flowable
rgbecker
parents: 2923
diff changeset
   923
        canv._doc.info = self._savedInfo
2666
a72c25280be2 facilitating saving info dictionary
andy
parents: 2664
diff changeset
   924
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   925
        self._endBuild()
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   926
        if self._onProgress:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   927
            self._onProgress('FINISHED',0)
512
c12ae96634d5 Added working table of contents framework
andy_robinson
parents: 500
diff changeset
   928
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   929
    def _allSatisfied(self):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   930
        """Called by multi-build - are all cross-references resolved?"""
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   931
        allHappy = 1
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   932
        for f in self._indexingFlowables:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   933
            if not f.isSatisfied():
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   934
                allHappy = 0
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   935
                break
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   936
        return allHappy
197
b8ca098f5ec7 Initial try at a document template class
rgbecker
parents:
diff changeset
   937
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   938
    def notify(self, kind, stuff):
2688
f9c4d1488516 doctemplate: apply T Heller's fix emacs syntax colouring patch
rgbecker
parents: 2672
diff changeset
   939
        """Forward to any listeners"""
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   940
        for l in self._indexingFlowables:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   941
            l.notify(kind, stuff)
1505
e45994cb76bb Allow non-save builds
rgbecker
parents: 1502
diff changeset
   942
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   943
    def pageRef(self, label):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   944
        """hook to register a page number"""
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
   945
        if verbose: print("pageRef called with label '%s' on page %d" % (
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
   946
            label, self.page))
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   947
        self._pageRefs[label] = self.page
1428
13a13044e9a8 Fixed up keepWithNext so it works
rgbecker
parents: 1425
diff changeset
   948
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   949
    def multiBuild(self, story,
3175
bf81f5b13ba8 doctemplate.py: fix bogus exception and allow for build keyword args in multibuild
rgbecker
parents: 3161
diff changeset
   950
                   maxPasses = 10,
bf81f5b13ba8 doctemplate.py: fix bogus exception and allow for build keyword args in multibuild
rgbecker
parents: 3161
diff changeset
   951
                   **buildKwds
bf81f5b13ba8 doctemplate.py: fix bogus exception and allow for build keyword args in multibuild
rgbecker
parents: 3161
diff changeset
   952
                   ):
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   953
        """Makes multiple passes until all indexing flowables
3374
348f9bcb4c11 added example of preloading table of contents
andy
parents: 3368
diff changeset
   954
        are happy.
348f9bcb4c11 added example of preloading table of contents
andy
parents: 3368
diff changeset
   955
        
348f9bcb4c11 added example of preloading table of contents
andy
parents: 3368
diff changeset
   956
        Returns number of passes"""
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   957
        self._indexingFlowables = []
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   958
        #scan the story and keep a copy
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   959
        for thing in story:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   960
            if thing.isIndexing():
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   961
                self._indexingFlowables.append(thing)
1683
7fa753e4420a Removed all trailing whitespace
andy_robinson
parents: 1677
diff changeset
   962
1829
ce5ceec32eab Fix up multiBuild to be cleverer about initial saves
rgbecker
parents: 1824
diff changeset
   963
        #better fix for filename is a 'file' problem
ce5ceec32eab Fix up multiBuild to be cleverer about initial saves
rgbecker
parents: 1824
diff changeset
   964
        self._doSave = 0
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   965
        passes = 0
2995
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   966
        mbe = []
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   967
        self._multiBuildEdits = mbe.append
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   968
        while 1:
2593
3adaab508968 reportlab: minor fixes to platypus, tests and fix jap splitting bug
rgbecker
parents: 2575
diff changeset
   969
            passes += 1
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   970
            if self._onProgress:
2460
dc28c1738ea9 doctemplate.py: fix buglet reported by Steve Halasz
rgbecker
parents: 2450
diff changeset
   971
                self._onProgress('PASS', passes)
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
   972
            if verbose: print('building pass '+str(passes) + '...', end=' ')
197
b8ca098f5ec7 Initial try at a document template class
rgbecker
parents:
diff changeset
   973
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   974
            for fl in self._indexingFlowables:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   975
                fl.beforeBuild()
218
274db2129c04 Fixes/Changes to get testplatypus to work with new framework
rgbecker
parents: 214
diff changeset
   976
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   977
            # work with a copy of the story, since it is consumed
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   978
            tempStory = story[:]
3175
bf81f5b13ba8 doctemplate.py: fix bogus exception and allow for build keyword args in multibuild
rgbecker
parents: 3161
diff changeset
   979
            self.build(tempStory, **buildKwds)
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   980
            #self.notify('debug',None)
512
c12ae96634d5 Added working table of contents framework
andy_robinson
parents: 500
diff changeset
   981
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   982
            for fl in self._indexingFlowables:
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   983
                fl.afterBuild()
218
274db2129c04 Fixes/Changes to get testplatypus to work with new framework
rgbecker
parents: 214
diff changeset
   984
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   985
            happy = self._allSatisfied()
221
3d71b66b14c6 Changes related to removal of SimpleFlowDocument
rgbecker
parents: 218
diff changeset
   986
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   987
            if happy:
1829
ce5ceec32eab Fix up multiBuild to be cleverer about initial saves
rgbecker
parents: 1824
diff changeset
   988
                self._doSave = 0
ce5ceec32eab Fix up multiBuild to be cleverer about initial saves
rgbecker
parents: 1824
diff changeset
   989
                self.canv.save()
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   990
                break
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
   991
            if passes > maxPasses:
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
   992
                raise IndexError("Index entries not resolved after %d passes" % maxPasses)
1428
13a13044e9a8 Fixed up keepWithNext so it works
rgbecker
parents: 1425
diff changeset
   993
2995
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   994
            #work through any edits
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   995
            while mbe:
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   996
                e = mbe.pop(0)
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   997
                e[0](*e[1:])
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   998
b510fcf46c0b doctemplate.py: first try at clean up of keepWithNext for multiBuild
rgbecker
parents: 2964
diff changeset
   999
        del self._multiBuildEdits
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
  1000
        if verbose: print('saved')
3374
348f9bcb4c11 added example of preloading table of contents
andy
parents: 3368
diff changeset
  1001
        return passes
348f9bcb4c11 added example of preloading table of contents
andy
parents: 3368
diff changeset
  1002
        
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1003
    #these are pure virtuals override in derived classes
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1004
    #NB these get called at suitable places by the base class
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1005
    #so if you derive and override the handle_xxx methods
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1006
    #it's up to you to ensure that they maintain the needed consistency
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1007
    def afterInit(self):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1008
        """This is called after initialisation of the base class."""
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1009
        pass
284
eabeb5f4e851 Added UserDocTemplate class, and paragraph.getPlainText()
andy_robinson
parents: 279
diff changeset
  1010
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1011
    def beforeDocument(self):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1012
        """This is called before any processing is
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1013
        done on the document."""
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1014
        pass
284
eabeb5f4e851 Added UserDocTemplate class, and paragraph.getPlainText()
andy_robinson
parents: 279
diff changeset
  1015
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1016
    def beforePage(self):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1017
        """This is called at the beginning of page
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1018
        processing, and immediately before the
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1019
        beforeDrawPage method of the current page
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1020
        template."""
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1021
        pass
284
eabeb5f4e851 Added UserDocTemplate class, and paragraph.getPlainText()
andy_robinson
parents: 279
diff changeset
  1022
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1023
    def afterPage(self):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1024
        """This is called after page processing, and
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1025
        immediately after the afterDrawPage method
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1026
        of the current page template."""
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1027
        pass
284
eabeb5f4e851 Added UserDocTemplate class, and paragraph.getPlainText()
andy_robinson
parents: 279
diff changeset
  1028
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1029
    def filterFlowables(self,flowables):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1030
        '''called to filter flowables at the start of the main handle_flowable method.
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1031
        Upon return if flowables[0] has been set to None it is discarded and the main
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1032
        method returns.
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1033
        '''
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1034
        pass
1428
13a13044e9a8 Fixed up keepWithNext so it works
rgbecker
parents: 1425
diff changeset
  1035
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1036
    def afterFlowable(self, flowable):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1037
        '''called after a flowable has been rendered'''
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1038
        pass
284
eabeb5f4e851 Added UserDocTemplate class, and paragraph.getPlainText()
andy_robinson
parents: 279
diff changeset
  1039
2955
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1040
    _allowedLifetimes = 'page','frame','build','forever'
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1041
    def docAssign(self,var,expr,lifetime):
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
  1042
        if not isinstance(expr,str): expr=str(expr)
2955
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1043
        expr=expr.strip()
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1044
        var=var.strip()
2957
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1045
        self.docExec('%s=(%s)'%(var.strip(),expr.strip()),lifetime)
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1046
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1047
    def docExec(self,stmt,lifetime):
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1048
        stmt=stmt.strip()
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1049
        NS=self._nameSpace
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
  1050
        K0=list(NS.keys())
2955
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1051
        try:
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1052
            if lifetime not in self._allowedLifetimes:
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1053
                raise ValueError('bad lifetime %r not in %r'%(lifetime,self._allowedLifetimes))
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
  1054
            exec(stmt, {},NS)
2955
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1055
        except:
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1056
            exc = sys.exc_info()[1]
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1057
            args = list(exc.args)
3384
4c9c0dcf0995 doctemplate.py: minor fix to error reporting
rgbecker
parents: 3374
diff changeset
  1058
            msg = '\ndocExec %s lifetime=%r failed!' % (stmt,lifetime)
4c9c0dcf0995 doctemplate.py: minor fix to error reporting
rgbecker
parents: 3374
diff changeset
  1059
            args.append(msg)
2955
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1060
            exc.args = tuple(args)
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
  1061
            for k in NS.keys():
2957
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1062
                if k not in K0:
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1063
                    del NS[k]
2955
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1064
            raise
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
  1065
        self._addVars([k for k in NS.keys() if k not in K0],lifetime)
2957
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1066
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1067
    def _addVars(self,vars,lifetime):
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1068
        '''add namespace variables to lifetimes lists'''
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1069
        LT=self._lifetimes
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1070
        for var in vars:
3721
0c93dd8ff567 initial changes from 2to3-3.3
rptlab
parents: 3686
diff changeset
  1071
            for v in LT.values():
2955
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1072
                if var in v:
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1073
                    v.remove(var)
2957
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1074
            LT.setdefault(lifetime,set([])).add(var)
2955
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1075
2957
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1076
    def _removeVars(self,lifetimes):
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1077
        '''remove namespace variables for with lifetime in lifetimes'''
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1078
        LT=self._lifetimes
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1079
        NS=self._nameSpace
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1080
        for lifetime in lifetimes:
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1081
            for k in LT.setdefault(lifetime,[]):
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1082
                try:
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1083
                    del NS[k]
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1084
                except KeyError:
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1085
                    pass
137b1d6cdca4 platypus: improve DocProgramming constructs
rgbecker
parents: 2956
diff changeset
  1086
            del LT[lifetime]
2955
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1087
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1088
    def docEval(self,expr):
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1089
        try:
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1090
            return eval(expr.strip(),{},self._nameSpace)
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1091
        except:
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1092
            exc = sys.exc_info()[1]
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1093
            args = list(exc.args)
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1094
            args[-1] += '\ndocEval %s failed!' % expr
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1095
            exc.args = tuple(args)
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1096
            raise
cc16265295fb reportlab: start of doc programming
rgbecker
parents: 2950
diff changeset
  1097
221
3d71b66b14c6 Changes related to removal of SimpleFlowDocument
rgbecker
parents: 218
diff changeset
  1098
class SimpleDocTemplate(BaseDocTemplate):
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1099
    """A special case document template that will handle many simple documents.
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1100
       See documentation for BaseDocTemplate.  No pageTemplates are required
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1101
       for this special case.   A page templates are inferred from the
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1102
       margin information and the onFirstPage, onLaterPages arguments to the build method.
1428
13a13044e9a8 Fixed up keepWithNext so it works
rgbecker
parents: 1425
diff changeset
  1103
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1104
       A document which has all pages with the same look except for the first
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1105
       page may can be built using this special approach.
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1106
    """
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1107
    _invalidInitArgs = ('pageTemplates',)
565
179927300074 Minor changes.
dinu_gherman
parents: 551
diff changeset
  1108
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1109
    def handle_pageBegin(self):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1110
        '''override base method to add a change of page template after the firstpage.
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1111
        '''
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1112
        self._handle_pageBegin()
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1113
        self._handle_nextPageTemplate('Later')
221
3d71b66b14c6 Changes related to removal of SimpleFlowDocument
rgbecker
parents: 218
diff changeset
  1114
2488
8bc9673fffa6 doctemplate.py: support for canvasmaker and rotation
rgbecker
parents: 2466
diff changeset
  1115
    def build(self,flowables,onFirstPage=_doNothing, onLaterPages=_doNothing, canvasmaker=canvas.Canvas):
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1116
        """build the document using the flowables.  Annotate the first page using the onFirstPage
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1117
               function and later pages using the onLaterPages function.  The onXXX pages should follow
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1118
               the signature
1428
13a13044e9a8 Fixed up keepWithNext so it works
rgbecker
parents: 1425
diff changeset
  1119
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1120
                  def myOnFirstPage(canvas, document):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1121
                      # do annotations and modify the document
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1122
                      ...
1428
13a13044e9a8 Fixed up keepWithNext so it works
rgbecker
parents: 1425
diff changeset
  1123
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1124
               The functions can do things like draw logos, page numbers,
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1125
               footers, etcetera. They can use external variables to vary
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1126
               the look (for example providing page numbering or section names).
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1127
        """
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1128
        self._calc()    #in case we changed margins sizes etc
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1129
        frameT = Frame(self.leftMargin, self.bottomMargin, self.width, self.height, id='normal')
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1130
        self.addPageTemplates([PageTemplate(id='First',frames=frameT, onPage=onFirstPage,pagesize=self.pagesize),
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1131
                        PageTemplate(id='Later',frames=frameT, onPage=onLaterPages,pagesize=self.pagesize)])
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1132
        if onFirstPage is _doNothing and hasattr(self,'onFirstPage'):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1133
            self.pageTemplates[0].beforeDrawPage = self.onFirstPage
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1134
        if onLaterPages is _doNothing and hasattr(self,'onLaterPages'):
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1135
            self.pageTemplates[1].beforeDrawPage = self.onLaterPages
2488
8bc9673fffa6 doctemplate.py: support for canvasmaker and rotation
rgbecker
parents: 2466
diff changeset
  1136
        BaseDocTemplate.build(self,flowables, canvasmaker=canvasmaker)
512
c12ae96634d5 Added working table of contents framework
andy_robinson
parents: 500
diff changeset
  1137
1669
31cb4c337e0d Andy's progress stuff
rgbecker
parents: 1668
diff changeset
  1138
def progressCB(typ, value):
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1139
    """Example prototype for progress monitoring.
1669
31cb4c337e0d Andy's progress stuff
rgbecker
parents: 1668
diff changeset
  1140
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1141
    This aims to provide info about what is going on
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1142
    during a big job.  It should enable, for example, a reasonably
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1143
    smooth progress bar to be drawn.  We design the argument
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1144
    signature to be predictable and conducive to programming in
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1145
    other (type safe) languages.  If set, this will be called
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1146
    repeatedly with pairs of values.  The first is a string
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1147
    indicating the type of call; the second is a numeric value.
1669
31cb4c337e0d Andy's progress stuff
rgbecker
parents: 1668
diff changeset
  1148
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1149
    typ 'STARTING', value = 0
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1150
    typ 'SIZE_EST', value = numeric estimate of job size
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1151
    typ 'PASS', value = number of this rendering pass
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1152
    typ 'PROGRESS', value = number between 0 and SIZE_EST
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1153
    typ 'PAGE', value = page number of page
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1154
    type 'FINISHED', value = 0
1669
31cb4c337e0d Andy's progress stuff
rgbecker
parents: 1668
diff changeset
  1155
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1156
    The sequence is
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1157
        STARTING - always called once
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1158
        SIZE_EST - always called once
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1159
        PROGRESS - called often
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1160
        PAGE - called often when page is emitted
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1161
        FINISHED - called when really, really finished
1683
7fa753e4420a Removed all trailing whitespace
andy_robinson
parents: 1677
diff changeset
  1162
1677
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1163
    some juggling is needed to accurately estimate numbers of
1450177dd19e Exterminated all tab characters and added a test to make sure
andy_robinson
parents: 1672
diff changeset
  1164
    pages in pageDrawing mode.
1669
31cb4c337e0d Andy's progress stuff
rg