Question

Windows 7 SP1
MSVS 2010
Qt 4.8.4

This code:

#include <QTGui>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QMainWindow*          window = new QMainWindow;
    QLineEdit*         line_edit = new QLineEdit;

    line_edit->setText("ABCDEFG");
    line_edit->setFixedSize(40,20);
    window->setCentralWidget(line_edit);
    window->show();
    return app.exec();
}

Displays this:

Note that the “AB” is truncated and the cursor is at the end of the line edit.

I want it to display:

Here “FG” is truncated and the cursor is at the beginning of the line edit.

I’ve tried to setCursorPosition and cursorBackward to no avail. If I convert the text via the font metric’s elidedText it will display from the beginning with the trailing “…”. But I don’t want to do that.

Question: Is there a way to make the cursor to start at the beginning of its contents after displaying a QLineEdit?

Answer 1

Setting cursor position to 0 just after setting text should work just fine. At least it does here on Linux, Qt 4.8.3.

#include <QtGui>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QMainWindow*          window = new QMainWindow;
    QVBoxLayout*          layout = new QVBoxLayout;
    QLineEdit*         line_edit = new QLineEdit;

    line_edit->setText("ABCDEFG");
    line_edit->setFixedSize(40,20);
    line_edit->setCursorPosition(0);
    layout->addWidget(line_edit);
    window->setCentralWidget(line_edit);
    window->show();
    return app.exec();
}