[pygtk] "Export to PDF"

[Ajay Garg]

Marco,

Thanks a ton !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

You have been really comprehensive in your explanations. I am obliged.



Thanks again (a ton !!)

On Mon, Oct 22, 2012 at 10:56 PM, Marco Antonio Islas Cruz <
markuz at islascruz.org> wrote:

>
> On Oct 22, 2012, at 12:14 PM, Ajay Garg <ajaygargnsit at gmail.com> wrote:
>
>
> a)
> Can the dialog, that asks for the printer-to-be-used, be avoided too?
> (Because I just wish to export to PDF, nothing else).
>
> As an example
>
> filename = './ultimafactura.pdf'
> po.set_export_filename(filename)
> action = gtk.PRINT_OPERATION_ACTION_EXPORT
> response = po.run(action)
>
> where  'po' is the print Operation, you need to set the action
> gtk.PRINT_OPERATION_ACTION_EXPORT and set your filename, then just run the
> print operation, since it is not  gtk.PRINT_OPERATION_ACTION_PRINT_DIALOG
> it will not show the dialog, and it is
> not  gtk.PRINT_OPERATION_ACTION_PRINT either it will not send the print to
> the selected printer (in case you selected a printer).
>
>
>
> b)
> I understand that the page would need to be "drawn" in memory, if we were
> to export an image.
> However, is that required for a text-document too?
>
> Yes, you have to draw, this is the hard part when printing, You can just
> populate your cairo surface but if you want to have a pretty formatted text
> you'll need to draw it. Please note, you are not exactly drawing in the
> same sense than drawing a circle or a rectangle, you'll need to use pango
> to create the text forms and attach them to the Cairo surface
>
>
> c)
> Also, I am still a bit unclear on the backend code.
> You mean to say  that *"only"* GTK has the backend code, and Cairo/Pango
> are just to handle the drawing part?
>
>
>  * Gtk is the one that gives you the print operation, also, responsible
> for the events and all that stuff.
>  * Cairo is the one in charge to draw, it gives you canvas, context and
> other stuff to "draw"
>  * Pango handle pretty text, also, is the interface for your text to be
> handled by Cairo.
>
> Marco Antonio Islas Cruz
> markuz at islascruz.org
> marco.islas at gmail.com
> <-- linux because I'm free -->
>
>
>
>

Regards,
Ajay
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