[reportlab-users] Embedding Platypus Story in Canvas

[Rich Shepard]

On Tue, 6 Nov 2007, Tim Roberts wrote:


> You have two choices.

   ...

> 2. You can derive your own class from SimpleDocTemplate, and override

> _startBuild to use the canvas you pass in.


   I'm really in a hole. Did this but still no joy. Here's the class:

 	class MyTemplate(SimpleDocTemplate):
 	  _invalidInitArgs = ('pageTemplates',)

 	  myCanvas = canvas.Canvas('input_variables.pdf', pagesize=LETTER)

 	  def _startBuild(self, filename='input_variables.pdf', canvasmaker=myCanvas):
 	    self._calc()
 	    self.canv = canvasmaker(filename or self.filename,
         	                    pagesize=self.pagesize,
                 	            invariant=self.invariant,
                         	    pageCompression=self.pageCompression)
 	    if self._onPage:
 	      self.canv.setPageCallBack(self._onPage)
 	    self.handle_documentBegin()

   And in class ProjectReports() I assign

 	pg = MyTemplate.myCanvas

so all additional references to pg become self.pg. No python errors, but
still only a one-page report.

   My inexperience with Python is certainly on public display here.

Rich

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