Hi all.
I'd like to provide help on special text ( tokens in code ) in a
GtkSourceView / GtkTextView. I see my question is basically:
https://mail.gnome.org/archives/gtk-list/2010-May/msg00107.html
... and the important part of the response to this question was:
"Simply set text view's "has-tooltip" property to "TRUE" and connect handler to
"query-tooltip" signal. Use coordinates provided by callback to find
the word that cursor hovers over and then do the lookup. I think
things should be relatively simple."
So I've done attempted this in Perl:
---
sub on_PARAM_VALUE_query_tooltip {
my ( $self, $sourceview, $window_x, $window_y, $keyboard_mode,
$tooltip ) = @_;
my ( $buffer_x, $buffer_y ) = $sourceview->window_to_buffer_coords
( 'GTK_TEXT_WINDOW_TEXT', $window_x, $window_y );
my ( $trailing, $iter ) = $sourceview->get_iter_at_position(
$buffer_x, $buffer_y );
if ( ! $iter->inside_word ) {
return FALSE;
}
my $start_iter;
if ( $iter->starts_word ) {
$start_iter = $iter;
} else {
$iter->backward_word_start;
$start_iter = $iter;
}
$iter->forward_word_end;
my $text = $sourceview->get_buffer->get_text( $start_iter, $iter, 1 );
print "$text\n";
}
---
This code runs, produces iters where expected, but then never gets any text.
What have I done wrong?
Thanks :)
Dan
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