text edit completer

[user4592357]

i'm looking at this example as a reference for me to write a completer for QPlainTextEdit subclass:
http://doc.qt.io/qt-5/qtwidgets-tools-customcompleter-example.html

however, it only shows autocompletion on some shortcut press. what i wanna do is, it to behave like a normal auto completion, i.e. filter suggestion list based on what already typed.

i can think of updating the model with every key press but i think that's a heavy operation. any better solution?

[mrjj]

Hi
That is the normal operation. (guess on type)

QStringList wordList;
  wordList << "alpha" << "omega" << "omicron" << "zeta";
  QCompleter *completer = new QCompleter(wordList, this);
  completer->setCaseSensitivity(Qt::CaseInsensitive);
  ui->lineEdit->setCompleter(completer);

Guess as soon as you write. However for a TextEdit that might be annoying and hence i thinks that's why sample uses shortcut.

[user4592357]

@mrjj
okay, but in my case i need it.

[mrjj]

@user4592357
hi
You are free to call comple() at any moment. so its more up to you to trigger it.
maybe on keypress will do it.

[user4592357]

@mrjj
i call it. i do it as in example. but in my case there are spaces in between the words, and i was selecting by text_cursor.select(QTextCursor::WordUnderCursor). changed that to text_cursor.select(QTextCursor::LineUnderCursor), now works!

[user4592357]

there's also something else: as in the example, i applied setModelSorting(QCompleter::CaseSensitivelySortedModel) to the completer. however, it wasn't sorted, and i had to do completer->model()->sort(0) explicitly. i don't think i should've done that, right?

i mean, just setModelSorting() should've done the job:
from docs: This property holds the way the model is sorted

[mrjj]

@user4592357 said in text edit completer:

setModelSorting

Hi
As far as i know its only for hinting the sort order. setting it wont
tell model to sort. Its more like a clue for completer.