doctemplate.py 文件源码

def _startBuild(self, filename=None, canvasmaker=canvas.Canvas):
        self._calc()

        #each distinct pass gets a sequencer
        self.seq = reportlab.lib.sequencer.Sequencer()

        self.canv = canvasmaker(filename or self.filename,
                                pagesize=self.pagesize,
                                invariant=self.invariant,
                                pageCompression=self.pageCompression,
                                enforceColorSpace=self.enforceColorSpace,
                                initialFontName = self.initialFontName,
                                initialFontSize = self.initialFontSize,
                                initialLeading = self.initialLeading,
                                cropBox = self.cropBox,
                                artBox = self.artBox,
                                trimBox = self.trimBox,
                                bleedBox = self.bleedBox,
                                )

        getattr(self.canv,'setEncrypt',lambda x: None)(self.encrypt)

        self.canv._cropMarks = self.cropMarks
        self.canv.setAuthor(self.author)
        self.canv.setTitle(self.title)
        self.canv.setSubject(self.subject)
        self.canv.setCreator(self.creator)
        self.canv.setKeywords(self.keywords)
        if self.displayDocTitle is not None:
            self.canv.setViewerPreference('DisplayDocTitle',['false','true'][self.displayDocTitle])
        if self.lang:
            self.canv.setCatalogEntry('Lang',self.lang)

        if self._onPage:
            self.canv.setPageCallBack(self._onPage)
        self.handle_documentBegin()