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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Qt Software Information (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
**
**************************************************************************/
#include "styleanimator.h"
#include <QStyleOption>
#if QT_VERSION >= 0x040500
Animation * StyleAnimator::widgetAnimation(const QWidget *widget) const
{
if (!widget)
return 0;
foreach (Animation *a, animations) {
if (a->widget() == widget)
return a;
}
return 0;
}
void Animation::paint(QPainter *painter, const QStyleOption *option)
{
Q_UNUSED(option);
Q_UNUSED(painter);
}
void Animation::drawBlendedImage(QPainter *painter, QRect rect, float alpha)
{
if (m_secondaryImage.isNull() || m_primaryImage.isNull())
return;
if (m_tempImage.isNull())
m_tempImage = m_secondaryImage;
const int a = qRound(alpha*256);
const int ia = 256 - a;
const int sw = m_primaryImage.width();
const int sh = m_primaryImage.height();
const int bpl = m_primaryImage.bytesPerLine();
switch (m_primaryImage.depth()) {
case 32:
{
uchar *mixed_data = m_tempImage.bits();
const uchar *back_data = m_primaryImage.bits();
const uchar *front_data = m_secondaryImage.bits();
for (int sy = 0; sy < sh; sy++) {
quint32 *mixed = (quint32*)mixed_data;
const quint32* back = (const quint32*)back_data;
const quint32* front = (const quint32*)front_data;
for (int sx = 0; sx < sw; sx++) {
quint32 bp = back[sx];
quint32 fp = front[sx];
mixed[sx] = qRgba ((qRed(bp)*ia + qRed(fp)*a)>>8,
(qGreen(bp)*ia + qGreen(fp)*a)>>8,
(qBlue(bp)*ia + qBlue(fp)*a)>>8,
(qAlpha(bp)*ia + qAlpha(fp)*a)>>8);
}
mixed_data += bpl;
back_data += bpl;
front_data += bpl;
}
}
default:
break;
}
painter->drawImage(rect, m_tempImage);
}
void Transition::paint(QPainter *painter, const QStyleOption *option)
{
float alpha = 1.0;
if (m_duration > 0) {
QTime current = QTime::currentTime();
if (m_startTime > current)
m_startTime = current;
int timeDiff = m_startTime.msecsTo(current);
alpha = timeDiff/(float)m_duration;
if (timeDiff > m_duration) {
m_running = false;
alpha = 1.0;
}
}
else {
m_running = false;
}
drawBlendedImage(painter, option->rect, alpha);
}
void StyleAnimator::timerEvent(QTimerEvent *)
{
for (int i = animations.size() - 1 ; i >= 0 ; --i) {
if (animations[i]->widget())
animations[i]->widget()->update();
if (!animations[i]->widget() ||
!animations[i]->widget()->isEnabled() ||
!animations[i]->widget()->isVisible() ||
animations[i]->widget()->window()->isMinimized() ||
!animations[i]->running())
{
Animation *a = animations.takeAt(i);
delete a;
}
}
if (animations.size() == 0 && animationTimer.isActive()) {
animationTimer.stop();
}
}
void StyleAnimator::stopAnimation(const QWidget *w)
{
for (int i = animations.size() - 1 ; i >= 0 ; --i) {
if (animations[i]->widget() == w) {
Animation *a = animations.takeAt(i);
delete a;
break;
}
}
}
void StyleAnimator::startAnimation(Animation *t)
{
stopAnimation(t->widget());
animations.append(t);
if (animations.size() > 0 && !animationTimer.isActive()) {
animationTimer.start(35, this);
}
}
#endif
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