Re: [Denemo-devel] Failure to print from the Evince widget

[Jeremiah Benham]

On 11/21/2011 11:24 AM, Richard Shann wrote:
> On Mon, 2011-11-21 at 09:11 +0000, Richard Shann wrote:
> > I turned the test code into a callable function and then called it from
> > earlier and earlier places in Denemo's startup looking for the position
> > where it stopped working.
> > It turned out to be where the external (Unix) SIGUSR1 is given a handler
> > - it would seem that the GtkPrintOperation widget is using this. By the
> > most fortuitous of coincidences we don't need that code once the evince
> > widget is working, as we get point-and-click from that.
> > I'll check in the fix now.
> This is checked into git now.

I've tested this with the gtk-3 branch and it works fine.

Jeremiah

> Jeremiah, can you remove denemo_client.c
> and the configure/make stuff that you created for it? It seems such a
> short while ago, but this is so much better.
> Also, Jeremiah, where is the gtk3 story now? And Dominic Sacre, where is
> the playback story now? It would be really great to make a release with
> all this stuff in it.
>
> Richard
>
>
>
> > Richard
> >
> > On Sun, 2011-11-20 at 10:06 -0600, Jeremiah Benham wrote:
> > > On 11/20/2011 07:29 AM, Richard Shann wrote:
> > > > Below is a self-contained test file for printing from the evince widget.
> > > > It uses the same code as print.c for the printing, and it works.
> > > > I have tried embedding it into Denemo and when I do this it does not
> > > > print. It seems that the draw_page signal is not emitted (that is, the
> > > > callback which libevince attaches is never called).
> > > > I have built a debug version of libevince, and verified that the handler
> > > > for draw_page is connected.
> > > > Something we are doing in Denemo must be causing this. It is all the
> > > > stranger since until now we were using the draw_page signal ourselves to
> > > > print from a .png loaded into the print preview window.
> > > This test prints and runs fine when compiled with gtk-3 and libevince-3.
> > > I use this to compile it:
> > >
> > > gcc evince_test.c -o test `pkg-config --libs --cflags evince-view-3.0`
> > > `pkg-config --libs --cflags gtk+-3.0`
> > >
> > > I will glance over it and see if I notice anything also.
> > >
> > > Jeremiah
> > > > If anyone has any idea how this signal might be getting lost I would
> > > > like to know.
> > > >
> > > > Richard
> > > >
> > > >
> > > > #include<stdio.h>
> > > > #include<gtk/gtk.h>
> > > > #include<evince-view.h>
> > > >
> > > >
> > > > evince_print() {
> > > >         GError *err = NULL;
> > > >     GFile       *file;
> > > >     gchar *filename = "test.pdf";
> > > >     file = g_file_new_for_commandline_arg (filename);
> > > >     gchar *uri = g_file_get_uri (file);
> > > >     g_object_unref (file);
> > > >     EvDocument *doc = ev_document_factory_get_document (uri,&err);
> > > >     if(err) {
> > > >       g_warning ("Trying to read the pdf file %s gave an error: %s", uri,
> > > > err->message);
> > > >       if(err)
> > > >                         g_error_free (err);
> > > >       err = NULL;
> > > >     } else {
> > > >       EvPrintOperation *printop = ev_print_operation_new (doc);
> > > >       ev_print_operation_run (printop, NULL);
> > > >     }
> > > > }
> > > >
> > > > int main(int argc, char **argv)
> > > > {
> > > >
> > > >     GtkWidget *main_vbox, *top;
> > > >     gtk_init(&argc,&argv);
> > > >     ev_init();
> > > >     GtkWidget *printarea;
> > > >     top = gtk_window_new(GTK_WINDOW_TOPLEVEL);
> > > >     gtk_window_set_title(GTK_WINDOW(top), "Evince Print Test");
> > > >
> > > >
> > > >     printarea = gtk_button_new_with_label("click me to print the file
> > > > test.pdf");
> > > >     gtk_container_add (GTK_CONTAINER(top), (GtkWidget*)printarea);
> > > >
> > > >     g_signal_connect (G_OBJECT (printarea), "clicked",
> > > >                       G_CALLBACK (evince_print), NULL);
> > > >     gtk_widget_show_all(top);
> > > >         gtk_main();
> > > >         return 0;
> > > > }
> > > >
> > > > //////////////// end of source code
> > > > To build use something like
> > > >
> > > > gcc testevince.c -o test -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include 
> > > > -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 
> > > > -I/usr/include/gio-unix-2.0/ -I/usr/include/pixman-1 -I/usr/include/freetype2 
> > > > -I/usr/include/libpng12 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include     
> > > >  -I/usr/include/libxml2   -pthread -I/usr/include/gtksourceview-2.0 
> > > > -I/usr/include/libxml2 -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include 
> > > > -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 
> > > > -I/usr/include/gio-unix-2.0/ -I/usr/include/pixman-1 -I/usr/include/freetype2 
> > > > -I/usr/include/libpng12 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include   
> > > > -pthread -I/usr/include/librsvg-2 -I/usr/include/glib-2.0 
> > > > -I/usr/lib/glib-2.0/include -I/usr/include/gtk-2.0 -I/usr/include/cairo 
> > > > -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/libpng12     
> > > > -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include   
> > > > -I/usr/include/evince/2.30 -levview -levdocument
> > > >
> > > > (a lot of that could be omitted I'm sure :)
> > > >
> > > >
> > > >
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