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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QQUICKTEXTUTIL_P_H
#define QQUICKTEXTUTIL_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtQml/qqmlincubator.h>
#include <QtQuick/qquickitem.h>
#include <QtQuick/qquickwindow.h>
#include <QtCore/private/qglobal_p.h>
#include <QtQml/qqmlcomponent.h>
QT_BEGIN_NAMESPACE
class QQuickTextUtil : public QObject // For the benefit of translations.
{
Q_OBJECT
public:
template <typename Private> static void setCursorDelegate(Private *d, QQmlComponent *delegate);
template <typename Private> static void createCursor(Private *d);
template <typename T> static typename T::RenderType textRenderType();
static qreal alignedX(qreal textWidth, qreal itemWidth, int alignment);
static qreal alignedY(qreal textHeight, qreal itemHeight, int alignment);
private:
static QQuickItem *createCursor(
QQmlComponent *component,
QQuickItem *parent,
const QRectF &cursorRectangle,
const char *className);
};
template <typename Private>
void QQuickTextUtil::setCursorDelegate(Private *d, QQmlComponent *delegate)
{
if (d->cursorComponent == delegate)
return;
typename Private::Public *parent = d->q_func();
if (d->cursorComponent) {
disconnect(d->cursorComponent, SIGNAL(statusChanged(QQmlComponent::Status)),
parent, SLOT(createCursor()));
}
delete d->cursorItem;
d->cursorItem = 0;
d->cursorPending = true;
d->cursorComponent = delegate;
if (parent->isCursorVisible() && parent->isComponentComplete())
createCursor(d);
Q_EMIT parent->cursorDelegateChanged();
}
template <typename Private>
void QQuickTextUtil::createCursor(Private *d)
{
if (!d->cursorPending)
return;
d->cursorPending = false;
typename Private::Public *parent = d->q_func();
if (d->cursorComponent) {
d->cursorItem = createCursor(
d->cursorComponent,
parent,
parent->cursorRectangle(),
Private::Public::staticMetaObject.className());
}
d->setNativeCursorEnabled(!d->cursorItem);
d->updateType = Private::UpdatePaintNode;
parent->update();
}
template <typename T>
typename T::RenderType QQuickTextUtil::textRenderType()
{
switch (QQuickWindow::textRenderType()) {
case QQuickWindow::QtTextRendering:
return T::QtRendering;
case QQuickWindow::NativeTextRendering:
return T::NativeRendering;
case QQuickWindow::CurveTextRendering:
return T::CurveRendering;
}
Q_UNREACHABLE_RETURN(T::QtRendering);
}
QT_END_NAMESPACE
#endif
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