diff options
Diffstat (limited to 'src/widgets/styles/qstyleanimation.cpp')
-rw-r--r-- | src/widgets/styles/qstyleanimation.cpp | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/widgets/styles/qstyleanimation.cpp b/src/widgets/styles/qstyleanimation.cpp new file mode 100644 index 0000000000..6173dc9ddb --- /dev/null +++ b/src/widgets/styles/qstyleanimation.cpp @@ -0,0 +1,140 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 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, 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. +** +** 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. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qstyleanimation_p.h" +#include <qcoreapplication.h> +#include <qprogressbar.h> +#include <qwidget.h> +#include <qevent.h> + +QT_BEGIN_NAMESPACE + +QStyleAnimation::QStyleAnimation(QObject *target) : QAbstractAnimation(target), + _startTime(QTime::currentTime()) +{ +} + +QStyleAnimation::~QStyleAnimation() +{ +} + +int QStyleAnimation::duration() const +{ + return -1; +} + +QObject *QStyleAnimation::target() const +{ + return parent(); +} + +QTime QStyleAnimation::startTime() const +{ + return _startTime; +} + +void QStyleAnimation::setStartTime(const QTime &time) +{ + _startTime = time; +} + +bool QStyleAnimation::isUpdateNeeded() const +{ + return true; +} + +void QStyleAnimation::updateCurrentTime(int) +{ + if (QObject *tgt = target()) { + if (tgt->isWidgetType()) { + QWidget *widget = static_cast<QWidget *>(tgt); + if (!widget->isVisible() || widget->window()->isMinimized()) + stop(); + } + + if (isUpdateNeeded()) { + QEvent event(QEvent::StyleAnimationUpdate); + QCoreApplication::sendEvent(tgt, &event); + } + } +} + +QProgressStyleAnimation::QProgressStyleAnimation(int speed, QObject *target) : + QStyleAnimation(target), _speed(speed), _step(-1) +{ +} + +int QProgressStyleAnimation::animationStep() const +{ + return currentTime() / (1000.0 / _speed); +} + +int QProgressStyleAnimation::progressStep(int width) const +{ + int step = animationStep(); + int progress = (step * width / _speed) % width; + if (((step * width / _speed) % (2 * width)) >= width) + progress = width - progress; + return progress; +} + +int QProgressStyleAnimation::speed() const +{ + return _speed; +} + +void QProgressStyleAnimation::setSpeed(int speed) +{ + _speed = speed; +} + +bool QProgressStyleAnimation::isUpdateNeeded() const +{ + int current = animationStep(); + if (_step == -1 || _step != current) + { + _step = current; + return true; + } + return false; +} + +QT_END_NAMESPACE |