forked from qt-creator/qt-creator
82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
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/****************************************************************************
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**
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** Copyright (C) 2021 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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#include "animationdriver.h"
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#include "private/qabstractanimation_p.h"
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AnimationDriver::AnimationDriver(QObject *parent)
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: QAnimationDriver(parent)
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{
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setProperty("allowNegativeDelta", true);
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install();
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connect(this, SIGNAL(started()), this, SLOT(startTimer()));
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connect(this, SIGNAL(stopped()), this, SLOT(stopTimer()));
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}
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AnimationDriver::~AnimationDriver()
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{
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}
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void AnimationDriver::timerEvent(QTimerEvent *e)
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{
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Q_ASSERT(e->timerId() == m_timer.timerId());
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Q_UNUSED(e);
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quint32 old = elapsed();
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// Provide same time for all users
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if (m_seekerEnabled) {
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m_seekerElapsed += (m_seekerPos * 100) / 30;
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if (m_seekerElapsed + m_elapsed < -100) // -100 to allow small negative value
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m_seekerElapsed = -m_elapsed - 100;
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} else {
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m_elapsed = QAnimationDriver::elapsed();
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}
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m_delta = elapsed() - old;
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advance();
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Q_EMIT advanced();
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}
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void AnimationDriver::startTimer()
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{
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m_timer.start(m_interval, Qt::PreciseTimer, this);
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}
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void AnimationDriver::stopTimer()
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{
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m_timer.stop();
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}
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void AnimationDriver::setSeekerPosition(int position)
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{
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if (!m_seekerEnabled)
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return;
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if (!m_timer.isActive())
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restart();
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m_seekerPos = position;
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}
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