On Wed, 15 Apr 2009 15:33:03 +0530 Vamsi Krishna Davuluri <vamsi.davul...@gmail.com> wrote: > Thanks for your effort and time Chris! > That pretty much answers all of my questions, one question though, > will poppler and such libs really be necessary when the file can > already be viewed by an application? As I think if a page can be > viewed, without doubt it can be rendered to cairo objects. > I have gone through gtkprint previously, made a simple printing > program in python which read text mime types. and could print as pdf > or to the printer.
I think that will depend on the application. If it draws pages using cairo and then paints them directly to X server side objects (eg GDK drawables via gdk_cairo_create()) then you are in a very straightforward position because you should be able to use the same drawing functions when drawing to cairo surfaces for painting to the print cairo context. All you may have to do is do some scaling of the print cairo context. If the application doesn't do that, but you can get hold of (or convert to) pixel data in an image format supported by cairo_image_surface_create_for_data() then you can use that to paint to the print cairo context (after scaling). If though the application uses higher-level GTK+ interfaces to display program material, such as GtkTextView, then I think you are going to have to draw the text yourself with pango-cairo. If it is just pure text you are thinking about, this is pretty straightforward (I can send you an url to some code I have written to print plain text log files using GtkPrintOperation if you like). Chris _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
