Question

I want to test the “copy” functionality of my Qt widget by simulating emission of QKeySequence::Copy, but QTest::keyClick doesn’t accept QKeySequence (or QKeySequence::StandardKey):

void QTest::keyClick ( QWidget * widget, Qt::Key key, Qt::KeyboardModifiers modifier = Qt::NoModifier, int delay = -1 ) [static]
void QTest::keyClick ( QWidget * widget, char key, Qt::KeyboardModifiers modifier = Qt::NoModifier, int delay = -1 ) [static]

I could just hardcode copy as Ctrl+C:

QTest::keyClick(widget, Qt::Key_C, Qt::ControlModifier)

However that would be rather brittle and might fail when testing my widget in other environments, so I’d prefer to use QKeySequence::Copy if possible.

I know I can use QKeySequence::QKeySequence(StandardKey) to find the primary binding, but I can’t see how to extract the key and modifier(s). Alternatively, is there some other way to get the same result?

Answer 1

Worked it out: the operator[] returns a bitwise combination of a Qt::Key and the Qt::KeyboardModifiers flags type (this doesn’t seem to be documented anywhere). So the way to extract the key and modifiers is to mask with Qt::KeyboardModifierMask (also completely undocumented):

QKeySequence binding(QKeySequence::Copy);
for (uint i = 0; i < binding.count(); ++i) {
    uint key = binding[i];
    QTest::keyClick(widget, Qt::Key(key & ~Qt::KeyboardModifierMask),
        Qt::KeyboardModifiers(key & Qt::KeyboardModifierMask));
}