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Diffstat (limited to 'src/quickcontrols2/qquickanimatednode.cpp')
-rw-r--r-- | src/quickcontrols2/qquickanimatednode.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/quickcontrols2/qquickanimatednode.cpp b/src/quickcontrols2/qquickanimatednode.cpp new file mode 100644 index 00000000..83539fc6 --- /dev/null +++ b/src/quickcontrols2/qquickanimatednode.cpp @@ -0,0 +1,163 @@ +/**************************************************************************** +** +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** 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 The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/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 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPLv3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or later as published by the Free +** Software Foundation and appearing in the file LICENSE.GPL included in +** the packaging of this file. Please review the following information to +** ensure the GNU General Public License version 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qquickanimatednode_p.h" + +#include <QtQuick/qquickitem.h> +#include <QtQuick/qquickwindow.h> + +// based on qtdeclarative/examples/quick/scenegraph/threadedanimation + +QT_BEGIN_NAMESPACE + +QQuickAnimatedNode::QQuickAnimatedNode(QQuickItem *target) + : m_running(false), + m_duration(0), + m_loopCount(1), + m_currentTime(0), + m_currentLoop(0), + m_window(target->window()) +{ +} + +bool QQuickAnimatedNode::isRunning() const +{ + return m_running; +} + +int QQuickAnimatedNode::currentTime() const +{ + int time = m_currentTime; + if (m_running) + time += m_timer.elapsed(); + return time; +} + +void QQuickAnimatedNode::setCurrentTime(int time) +{ + m_currentTime = time; + m_timer.restart(); +} + +int QQuickAnimatedNode::duration() const +{ + return m_duration; +} + +void QQuickAnimatedNode::setDuration(int duration) +{ + m_duration = duration; +} + +int QQuickAnimatedNode::loopCount() const +{ + return m_loopCount; +} + +void QQuickAnimatedNode::setLoopCount(int count) +{ + m_loopCount = count; +} + +void QQuickAnimatedNode::sync(QQuickItem *target) +{ + Q_UNUSED(target); +} + +QQuickWindow *QQuickAnimatedNode::window() const +{ + return m_window; +} + +void QQuickAnimatedNode::start(int duration) +{ + if (m_running) + return; + + m_running = true; + m_currentLoop = 0; + m_timer.restart(); + if (duration > 0) + m_duration = duration; + connect(m_window, &QQuickWindow::beforeRendering, this, &QQuickAnimatedNode::advance); + connect(m_window, &QQuickWindow::frameSwapped, this, &QQuickAnimatedNode::update); + emit started(); +} + +void QQuickAnimatedNode::restart() +{ + stop(); + start(); +} + +void QQuickAnimatedNode::stop() +{ + if (!m_running) + return; + + m_running = false; + disconnect(m_window, &QQuickWindow::beforeRendering, this, &QQuickAnimatedNode::advance); + disconnect(m_window, &QQuickWindow::frameSwapped, this, &QQuickAnimatedNode::update); + emit stopped(); +} + +void QQuickAnimatedNode::updateCurrentTime(int time) +{ + Q_UNUSED(time); +} + +void QQuickAnimatedNode::advance() +{ + int time = currentTime(); + if (time > m_duration) { + time = 0; + setCurrentTime(0); + + if (m_loopCount > 0 && ++m_currentLoop >= m_loopCount) { + time = m_duration; // complete + stop(); + } + } + updateCurrentTime(time); +} + +void QQuickAnimatedNode::update() +{ + if (m_running) + m_window->update(); +} + +QT_END_NAMESPACE |