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Diffstat (limited to 'src/quick/util/qdeclarativepathinterpolator.cpp')
-rw-r--r-- | src/quick/util/qdeclarativepathinterpolator.cpp | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/quick/util/qdeclarativepathinterpolator.cpp b/src/quick/util/qdeclarativepathinterpolator.cpp new file mode 100644 index 0000000000..569884d33a --- /dev/null +++ b/src/quick/util/qdeclarativepathinterpolator.cpp @@ -0,0 +1,122 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtDeclarative module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 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 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qdeclarativepathinterpolator_p.h" + +#include "qdeclarativepath_p.h" + +QT_BEGIN_NAMESPACE + +QDeclarativePathInterpolator::QDeclarativePathInterpolator(QObject *parent) : + QObject(parent), _path(0), _x(0), _y(0), _angle(0), _progress(0) +{ +} + +QDeclarativePath *QDeclarativePathInterpolator::path() const +{ + return _path; +} + +void QDeclarativePathInterpolator::setPath(QDeclarativePath *path) +{ + if (_path == path) + return; + if (_path) + disconnect(_path, SIGNAL(changed()), this, SLOT(_q_pathUpdated())); + _path = path; + connect(_path, SIGNAL(changed()), this, SLOT(_q_pathUpdated())); + emit pathChanged(); +} + +qreal QDeclarativePathInterpolator::progress() const +{ + return _progress; +} + +void QDeclarativePathInterpolator::setProgress(qreal progress) +{ + if (progress == _progress) + return; + _progress = progress; + emit progressChanged(); + _q_pathUpdated(); +} + +qreal QDeclarativePathInterpolator::x() const +{ + return _x; +} + +qreal QDeclarativePathInterpolator::y() const +{ + return _y; +} + +qreal QDeclarativePathInterpolator::angle() const +{ + return _angle; +} + +void QDeclarativePathInterpolator::_q_pathUpdated() +{ + if (! _path) + return; + + qreal angle = 0; + const QPointF pt = _path->sequentialPointAt(_progress, &angle); + + if (_x != pt.x()) { + _x = pt.x(); + emit xChanged(); + } + + if (_y != pt.y()) { + _y = pt.y(); + emit yChanged(); + } + + if (angle != _angle) { + _angle = angle; + emit angleChanged(); + } +} + +QT_END_NAMESPACE |