Move text-cursor of QsciScintilla to the left or right in PyQt5

Question

I was wondering what specific commands I can execute to move a text cursor in QsciScintilla to the left or right? I know for a QPlainTextEdit, you can execute the commands:

self.textEdit.moveCursor(QTextCursor.Left)

or:

self.textEdit.moveCursor(QTextCursor.Right)

Are there any similar commands for QsciScintilla?

I tried:

# left cursor movement
line, index = self.sci.getCursorPosition()
if index == 0 and line != 0:
   #move to back line
elif index != 0: 
   self.sci.setCursorPosition(line, index - 1)

[QScintilla Documentation](https://www.riverbankcomputing.com/static/Docs/QScintilla/classQsciScintilla.html). — ekhumoro, Sep 23 '21 at 17:46
I already checked it out and tried to come up with the code for setCursorPosition but did not succeed — Benjamin Sloutsky, Sep 23 '21 at 18:00

score 1 · Accepted Answer · answered Sep 23 '21 at 19:21

There's two ways to do this:

Using the low-level api to send keyboard commands directly to the underlying scintilla editor:

Move Left

  self.sci.SendScintilla(Qsci.QsciScintillaBase.SCI_CHARLEFT)

Move Right

  self.sci.SendScintilla(Qsci.QsciScintillaBase.SCI_CHARRIGHT)

Using the high-level api to set the line and index explictly:

Move Left

  line, index = self.sci.getCursorPosition()
  if index:
      self.sci.setCursorPosition(line, index - 1)
  elif line:
      self.sci.setCursorPosition(
          line - 1, self.sci.lineLength(line - 1) - 1)

Move Right

  line, index = self.sci.getCursorPosition()
  if index < self.sci.lineLength(line):
      self.sci.setCursorPosition(line, index + 1)
  elif line < self.sci.lines():
      self.sci.setCursorPosition(line + 1, 0)

This works perfectly! Thank you. – Benjamin Sloutsky Sep 23 '21 at 20:55 — Benjamin Sloutsky, Sep 23 '21 at 20:55

Move text-cursor of QsciScintilla to the left or right in PyQt5

1 Answers1