This is a question about the cursor in the qscintilla, not an issue about exco

[Mr-ZBin]

Hi matkhui,
Thank you very much. Now I use the first visible line number and the current line number and column number in the line to calculate the position in screen by fontMetrics(). But it's not precise when I zoom in or out.
Thank you very much for this reply. And your wonderful ExCo project helps me a lot because I'm a new user in python and pyqt.
Thanks,
Bin

[matkuki]

Hi @Mr-ZBin ,

Funny you brought this up, as I also had the idea to make a custom autocompletion popup.
I just check the source code of QScintilla and this seems to be a very convoluted thing, internally it uses many objects and converter functions to switch between POINT, Point and QPoint. But I couldn't get to the bottom of it yet.

I have posted a question on the mailing list and will poke around the source a bit more. Will report back when something comes up.

[matkuki]

I have just gotten a reply on the mailing list:

Use the low-level SendScintilla API:
https://www.riverbankcomputing.com/static/Docs/QScintilla/classQsciScintillaBase.html#a8820ab8d7563bd7ed24ce6384846079e
Then you can get the x, y with:
https://www.scintilla.org/ScintillaDoc.html#SCI_POINTXFROMPOSITION
https://www.scintilla.org/ScintillaDoc.html#SCI_POINTYFROMPOSITION

Basically use:

x = editor.SendScintilla(QsciScintilla.SCI_POINTXFROMPOSITION, editor.positionFromLineIndex(editor.getCursorPosition()))
y = editor.SendScintilla(QsciScintilla.SCI_POINTYFROMPOSITION, editor.positionFromLineIndex(editor.getCursorPosition()))

I will try it later.

[matkuki]

@Mr-ZBin
Tested it and it works, with a slight adjustment:

x = editor.SendScintilla(QsciScintilla.SCI_POINTXFROMPOSITION, 0, editor.positionFromLineIndex(*editor.getCursorPosition()))
y = editor.SendScintilla(QsciScintilla.SCI_POINTYFROMPOSITION, 0, editor.positionFromLineIndex(*editor.getCursorPosition()))