Method handlePreeditText

src/internalinputmethodcontext.cpp:134–164

// From the InputMethod to our internal window

void InternalInputMethodContext::handlePreeditText(const QString &text, int cursorBegin, int cursorEnd)
{
    QObject *focusObject = QGuiApplication::focusObject();
    if (!focusObject) {
        return;
    }

    QList<QInputMethodEvent::Attribute> attributes;

    if (cursorBegin != -1 || cursorEnd != -1) {
        // Current supported cursor shape is just line.
        // It means, cursorEnd and cursorBegin are the same.
        QInputMethodEvent::Attribute attribute1(QInputMethodEvent::Cursor,
                                                text.length(),
                                                1);
        attributes.append(attribute1);
    }

    // only use single underline style for now
    QTextCharFormat format;
    format.setFontUnderline(true);
    format.setUnderlineStyle(QTextCharFormat::SingleUnderline);
    QInputMethodEvent::Attribute attribute2(QInputMethodEvent::TextFormat,
                                            0,
                                            text.length(), format);
    attributes.append(attribute2);

    QInputMethodEvent event(text, attributes);

    QCoreApplication::sendEvent(focusObject, &event);
}

void InternalInputMethodContext::handleCommitString(const QString &text)
{