Re: [evince] Unable to make searched-text "highlighting" work in Evince-GTK3

[Ajay Garg <ajaygargnsit gmail com>]

Hi all.

I investigated the source, and as per


#####################################################
void
ev_view_find_set_highlight_search (EvView *view, gboolean value)                                                                                     
{
    view->highlight_find_results = value;
    gtk_widget_queue_draw (GTK_WIDGET (view));
}
#####################################################

It does seem that "self._view.find_set_highlight_search(True)" SHOULD enable the highlighting of searched-words.

It it true?

If yes, perhaps it could be an issue with the python-bindings?

On Thu, Apr 25, 2013 at 10:04 PM, Ajay Garg <ajaygargnsit gmail com> wrote:

Hi Gonzalo.

Thanks a ton !!!

After I add the line https://git.sugarlabs.org/read/mainline/blobs/master/evinceadapter.py#line255, the above code works fine in Fedora-18;

the view scrolled to the "found text" locations :)

However, the same does not work on Fedora-17, as the method "Evince.EvinceView.find_started" is not present in the Fedora-17 rpms, but it is on Fedora-18.

Luckily, that is good enough for me :)

Just a small caveat :: Highlighting still does not work, even though I have added
                          "self._view.find_set_highlight_search(True)"

statement.

Anyhow, I will keep trying !!

Thanks a ton, again :)

On Thu, Apr 25, 2013 at 9:17 PM, Gonzalo Odiard <gonzalo laptop org> wrote:

Hi Ajay,

Look at the Read activity sources https://git.sugarlabs.org/read/mainline/blobs/master/evinceadapter.py#line248

search is working ok.

Gonzalo

On Thu, Apr 25, 2013 at 12:29 PM, Ajay Garg <ajaygargnsit gmail com> wrote:

Hi all.

I had earlier written a program using GTK2-bindings, to load a PDF, and highlight all the searched-words.

It worked perfectly fine there -  highlighting the words, and scrolling to the desired page/location (if and when necessary).

I have then ported the program to GTK3, and seem to be getting the results in the callback function associated to "updated" signal.

However, neither do the words highlight, nor the scrolling takes  place to the appropriate page/location.

Following is the ported program ::

################################################################################
from gi.repository import GObject
from gi.repository import Gtk

from gi.repository import EvinceView
from gi.repository import EvinceDocument


class EvinceViewer(Gtk.ScrolledWindow):

    def __init__(self):
        Gtk.ScrolledWindow.__init__(self)

        EvinceDocument.init()

        self._view = EvinceView.View()
        self._view.find_set_highlight_search(True)

        self.add(self._view)

        self._find_job = None

        self.load_document('file:///home/ajay/Downloads/Ajay_Garg_Resume.pdf')
        self.find_text_first('demoable')

    def load_document(self, file_path):
        try:
            self._document = EvinceDocument.Document.factory_get_document(file_path)
        except GObject.GError, e:
            print 'ERROR in loading'
            return
        else:
            self._model = EvinceView.DocumentModel()
            self._model.set_document(self._document)
            self._view.set_model(self._model)

    def find_text_first(self, text):
        if text == "":
            self._view.find_set_highlight_search(False)
            return

        self._view.find_set_highlight_search(True)

        if self._find_job is not None:
            self._find_job.cancel()
            self._find_job.disconnect(self._find_updated_handler)
            self._find_job = None

        if text != "":
            self._find_job = EvinceView.JobFind.new(self._document, 0,
                                                    self._document.get_n_pages(),
                                                    text, False)
            self._find_updated_handler = \
                    self._find_job.connect('updated', self.__find_updated_cb)

            EvinceView.Job.scheduler_push_job(self._find_job,
                                              EvinceView.JobPriority.PRIORITY_NONE)

    def __find_updated_cb(self, job, page=None):
        print page
        print job

        #####
        # This method no longer seems to be present in GTK3.
        #self._view.find_changed(job, page)
        #####

        self._view.find_next()

win = Gtk.Window()
win.add(EvinceViewer())
win.maximize()
win.show_all()

Gtk.main()
################################################################################

When I run the above program, I get the output ::

################################################################################
0
<JobFind object at 0x8489c0c (EvJobFind at 0x84b2218)>
1
<JobFind object at 0x8489c0c (EvJobFind at 0x84b2218)>
2
<JobFind object at 0x8489c0c (EvJobFind at 0x84b2218)>
3
<JobFind object at 0x8489c0c (EvJobFind at 0x84b2218)>
4
<JobFind object at 0x8489c0c (EvJobFind at 0x84b2218)>
################################################################################

This shows that "__find_updated_cb" is being hit; however, as I said, neither of "text-highlighting" or "scrolling-to-desired-location" takes  place :(

I am sure that I am missing something, as ::

   * I have simply done the porting in the "textual sense".

  * "Search" is too major a feature to not work in GTK3.

I will be grateful for any pointers, that may help rectify my situation :)

Thanks and Regards,
Ajay

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--
Regards,
Ajay

--
Regards,
Ajay