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Problem while moving QTextCursor

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  • A Offline
    A Offline
    Abdeljalil
    wrote on last edited by
    #1

    i have an action called bold, when i select text then run this action this code will run:
    @
    void MarkEditWindow::on_actionBold_triggered()
    {
    QTextCursor selectionBegin(ui->markdownEdit->document());
    selectionBegin.setPosition(ui->markdownEdit->textCursor().anchor());
    selectionBegin.insertText("**");

    QTextCursor selectionEnd(ui->markdownEdit->document());
    selectionEnd.setPosition(ui->markdownEdit->textCursor().position());
    selectionEnd.insertText("**");
    

    }
    @

    now for example i wrote "test" then run the action the result is "test" and the selected text will be "test**" (missing first '**')
    how can i move the cursor after selection to make it select "test" or even select "test" only
    i tried a lot of things and didn't work, like:
    @
    selectionEnd.movePosition(QTextCursor::Left);
    selectionEnd.movePosition(QTextCursor::Left);
    @
    but didn't work! :-(

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    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      Are you thinking of something like

      @
      QTextCursor cursor = _textEdit->textCursor();
      int start = cursor.selectionStart();
      int end = cursor.selectionEnd();
      cursor.setPosition(start);
      cursor.insertText("");
      cursor.setPosition(end+2);
      cursor.insertText("
      ");
      @

      ?

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      0
      • A Offline
        A Offline
        Abdeljalil
        wrote on last edited by
        #3

        yeah, but:
        @
        cursor.setPosition(end-2);
        @
        how to do that?

        1 Reply Last reply
        0
        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          @
          // Go back to start and redo the selection
          cursor.setPosition(start + 2);
          cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, (end - start));
          _textEdit->setTextCursor(cursor);
          @

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

          1 Reply Last reply
          0

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