[reportlab-users] How to get elementary attributes of a document

[Robert Szelepcsényi]

Hi,



I need to generate invoices in PDF. Each invoioce has a footer. Also pages are to be numbered in the style Page X of Y.

Inorder to achieve this I provide my own functions for onFirstPage, onLaterPages, and canvasmaker in doc.build:

doc.build(elements,
          onFirstPage=myFooter,
          onLaterPages=myFooter,
          canvasmaker=NumberedCanvas)


These functions work as expected. However, in order to format the output I need access to elementary attributes of the document: pagesize and margins.

For example I need to put page numbers to the bottom of the page in the middle. I can nail it down to fixed coordinates, which works without any problems, but I don't like this approach, because the document template can change.

I need to be able to get these attributes from canvas, which all the abovementioned functions get as one of their arguments.

I jus can't figure out how to read these attributes. For example leftmargin is mentioned in the whole documentation just once - where document template is created.

I suppose pagesize and margins must be stored somewhere - how can I read them?



Robert Szelepcsenyi