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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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/qqml.h>
#include <QtQml/qqmlincubator.h>
#include <QtQuick/qquickitem.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);
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();
}
QT_END_NAMESPACE
#endif
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