Have a look at the Gtk::TextView::scroll_to ( ... ) functions.
On 01/23/2017 06:28 AM, Bill William wrote:
I was trying to implement a Search bar for Gtk::TextView inside of
Gtk::ScrollableWindow. Basically the code uses a text iterator to
search forward in the code for a given text string. Example:
void TextEditor::SearchClicked(int direction) {
static Glib::ustring lastsearch {""};
static Gtk::TextIter it = textbuff->begin();
Glib::ustring searchtext = searchbar.entry.get_text();
if (lastsearch != searchtext) {
it = textbuff->begin();
}
lastsearch = searchtext;
cout << "clicked! " << direction << "\n";
Gtk::TextIter it_match_begin;
Gtk::TextIter it_match_end;
bool found = false;
if (!direction) {
found = it.forward_search(searchtext,
Gtk::TextSearchFlags::TEXT_SEARCH_CASE_INSENSITIVE,
it_match_begin,
it_match_end);
}
else {
found = it.backward_search(searchtext,
Gtk::TextSearchFlags::TEXT_SEARCH_CASE_INSENSITIVE,
it_match_begin,
it_match_end);
}
if (found) {
textbuff->select_range(it_match_begin, it_match_end);
if (!direction) {
it = it_match_end;
} else {
it = it_match_begin;
}
}
}
Which works ok, except when the iterator goes beyond the current
scroller positions in the ScrolledWindow, then you need to manually
scroll the window down to see the highlighted text. Any ideas on how
to fix this code so that it autoscrolls when it goes beyond the
scrolledwindows visable area?
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