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ycbcrlabview.cpp
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ycbcrlabview.cpp
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/*******************************************************************************
YCbCr Exporter
A tool to aid filmmakers / artists to manipulate YCbCr files to
maximize quality.
Copyright (C) 2013 Troy James Sobotka, [email protected]
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*******************************************************************************/
#include "ycbcrlabview.h"
// *******
// * QffSequence
// *******
QffSequence::QffSequence(QWidget *parent) :
QObject(parent), ffSequence()
{
qRegisterMetaType<ffSequenceState>("ffSequenceState");
qRegisterMetaType<std::string>("std::string");
qRegisterMetaType<ffExportDetails::ExportFormat>(
"ffExportDetails::ExportFormat");
}
void QffSequence::onProgressStart(void)
{
emit signal_progressStart();
}
void QffSequence::onProgress(double factor)
{
emit signal_progress(factor);
}
void QffSequence::onProgressEnd(void)
{
emit signal_progressEnd();
}
void QffSequence::onJustLoading(void)
{
emit signal_justLoading();
}
void QffSequence::onJustOpened(void)
{
emit signal_justOpened();
}
void QffSequence::onJustClosed(void)
{
emit signal_justClosed();
}
//void QffSequence::onJustErrored(void)
//{
// emit signal_justErrored();
//}
void QffSequence::onExportTrimChanged(long in, long out, void *sender)
{
emit signal_exportTrimChanged(in, out, sender);
}
void QffSequence::onExportPlaneChanged(ffExportDetails::ExportPlane plane,
void *sender)
{
emit signal_exportPlaneChanged(plane, sender);
}
void QffSequence::onExportPathChanged(std::string fileName, void *sender)
{
emit signal_exportPathChanged(fileName, sender);
}
void QffSequence::onExportFormatChanged(ffExportDetails::ExportFormat format,
void *sender)
{
emit signal_exportFormatChanged(format, sender);
}
void QffSequence::onFrameChanged(long frame, void *sender)
{
emit signal_frameChanged(frame, sender);
}
// *******
// * QYCBCRLabView
// *******
YCbCrLabView::YCbCrLabView(QWidget *parent) :
QWidget(parent),
m_pGraphicsView(NULL),
m_pGraphicsViewOverlay(NULL),
m_pGraphicsScene(NULL),
m_pGraphicsSceneOverlay(NULL)
{
createObjects();
createActions();
initObjects();
createAnimations();
}
void YCbCrLabView::createObjects(void)
{
m_pGraphicsView = new QBaseGraphicsView(this);
m_pGraphicsViewOverlay = new QBaseGraphicsView(this, m_pGraphicsView);
m_pGraphicsScene = new QGraphicsScene(this);
m_pGraphicsSceneOverlay = new QGraphicsScene(this);
//m_pOverlayAnchor = new QGraphicsWidget;
//m_pGraphicsAnchorLayout = new QGraphicsAnchorLayout;
m_pSlider = new QGraphicsTrimSlider;
m_pProgressBar = new QProgressBar;
m_pProgressTimeline = new QTimeLine(TIMELINE_DURATION, this);
m_pTextPill = new QTextPill;
m_pTimeLine = new QTimeLine(TIMELINE_DURATION, this);
m_pGraphicsPixmapItem = new QGraphicsPixmapItem;
m_pffSequence = new QffSequence;
}
void YCbCrLabView::createActions()
{
m_pShortcutTrimIn = new QShortcut(tr("i"), this);
m_pShortcutTrimOut = new QShortcut(tr("o"), this);
m_pShortcutSingleFrameAhead = new QShortcut(Qt::Key_Right, this);
m_pShortcutSingleFrameBack = new QShortcut(Qt::Key_Left, this);
}
void YCbCrLabView::initObjects(void)
{
m_numScheduledScalings = 0;
m_pGraphicsView->setScene(m_pGraphicsScene);
m_pGraphicsView->setTransformationAnchor(QGraphicsView::AnchorUnderMouse);
m_pGraphicsView->setDragMode(QGraphicsView::ScrollHandDrag);
m_pGraphicsViewOverlay->setStyleSheet("background:transparent;");
m_pGraphicsViewOverlay->setFrameShape(QFrame::NoFrame);
m_pGraphicsViewOverlay->setScene(m_pGraphicsSceneOverlay);
m_pGraphicsSceneOverlay->addItem(m_pTextPill);
m_pGraphicsSceneOverlay->addItem(m_pSlider);
m_pSlider->setOpacity(YCBCRVIEW_TRANSPARENT);
m_pTextPill->setPos(TEXT_PADDING_X, TEXT_PADDING_Y);
m_pgwProgressBar = m_pGraphicsSceneOverlay->addWidget(m_pProgressBar);
m_pProgressBar->setMaximumHeight(PROGRESS_HEIGHT);
m_pProgressBar->setTextVisible(false);
m_pgwProgressBar->setOpacity(YCBCRVIEW_TRANSPARENT);
m_pGraphicsViewOverlay->addActive(m_pSlider);
m_pGraphicsScene->addItem(m_pGraphicsPixmapItem);
m_pProgressTimeline->setUpdateInterval(TIMELINE_PROGRESS_UPDATE);
m_pTimeLine->setUpdateInterval(TIMELINE_ZOOM_UPDATE);
m_viewerPlane = ffViewer::Y;
connect(m_pTimeLine, SIGNAL(valueChanged(qreal)),
SLOT(onScaleTimeslice(qreal)));
connect(m_pTimeLine, SIGNAL(finished()),
SLOT(onScaleAnimFinished()));
// connect(this, SIGNAL(signal_error(QString)), this,
// SLOT(onError(QString)));
connect(m_pffSequence, SIGNAL(signal_progressStart()), this,
SLOT(onProgressStart()));
connect(m_pffSequence, SIGNAL(signal_progress(double)), this,
SLOT(onProgress(double)));
connect(m_pffSequence, SIGNAL(signal_progressEnd()), this,
SLOT(onProgressEnd()));
connect(m_pffSequence, SIGNAL(signal_justLoading()), this,
SLOT(onJustLoading()));
connect(m_pffSequence, SIGNAL(signal_justOpened()), this,
SLOT(onJustOpened()));
connect(m_pffSequence, SIGNAL(signal_justClosed()), this,
SLOT(onJustClosed()));
// connect(m_pffSequence, SIGNAL(signal_justErrored()), this,
// SLOT(onJustErrored()));
connect(m_pProgressTimeline, SIGNAL(valueChanged(qreal)), this,
SLOT(onProgressAnimation(qreal)));
connect(m_pSlider, SIGNAL(signal_valueChanged(long)), this,
SLOT(onSliderChanged(long)));
connect(m_pffSequence, SIGNAL(signal_frameChanged(long,void*)), this,
SLOT(onFrameChanged(long,void*)));
connect(m_pffSequence,
SIGNAL(signal_exportTrimChanged(long,long,void*)),
this, SLOT(onExportTrimChanged(long,long,void*)));
connect(m_pShortcutTrimIn, SIGNAL(activated()), this,
SLOT(onExportTrimInPressed()));
connect(m_pShortcutTrimOut, SIGNAL(activated()), this,
SLOT(onExportTrimOutPressed()));
connect(m_pShortcutSingleFrameAhead, SIGNAL(activated()), this,
SLOT(onFrameForward()));
connect(m_pShortcutSingleFrameBack, SIGNAL(activated()), this,
SLOT(onFrameBack()));
connect(m_pffSequence, SIGNAL(
signal_exportPlaneChanged(
ffExportDetails::ExportPlane,void*)), this,
SLOT(onExportPlaneChanged(
ffExportDetails::ExportPlane,void*)));
connect(this, SIGNAL(signal_stateChanged(
ffSequenceState)),
this, SLOT(onStateChanged(ffSequenceState)));
m_pGraphicsViewOverlay->viewport()->installEventFilter(
m_pGraphicsViewOverlay);
}
void YCbCrLabView::createAnimations(void)
{
m_pFadePixmap = new QGraphicsOpacityEffect;
m_pFadePixmapAnimation = new QPropertyAnimation(m_pFadePixmap,
"opacity");
m_pFadePixmapAnimation->setDuration(YCBCRVIEW_DURATION_INTROFADEIN);
m_pFadePixmapAnimation->setStartValue(YCBCRVIEW_TRANSPARENT);
m_pFadePixmapAnimation->setEndValue(YCBCRVIEW_OPAQUE);
m_pFadeProgressBar = new QGraphicsOpacityEffect;
m_pFadeProgressBarAnimation =
new QPropertyAnimation(m_pFadeProgressBar, "opacity");
m_pFadeProgressBarAnimation->setDuration(PROGRESS_FADE_DURATION);
m_pFadeProgressBarAnimation->setStartValue(YCBCRVIEW_TRANSPARENT);
m_pFadeProgressBarAnimation->setEndValue(YCBCRVIEW_OPAQUE);
m_pFadeFrameScrubber = new QGraphicsOpacityEffect;
m_pFadeFrameScrubberAnimation =
new QPropertyAnimation(m_pFadeFrameScrubber, "opacity");
m_pFadeFrameScrubberAnimation->setDuration(PROGRESS_FADE_DURATION);
m_pFadeFrameScrubberAnimation->setStartValue(YCBCRVIEW_TRANSPARENT);
m_pFadeFrameScrubberAnimation->setEndValue(SLIDER_OPACITY);
}
YCbCrLabView::~YCbCrLabView()
{
// TODO sort out the deletion order to prevent unexpected outs.
/*delete m_pFadeIn;
delete m_pTextFadeOut;
delete m_pFadeInAnimation;
delete m_pTextFadeOutAnimation;
delete m_pffSequence;
delete m_pTextPill;
delete m_pGraphicsViewOverlay;
delete m_pGraphicsSceneOverlay;
delete m_pGraphicsPixmapItem;
delete m_pGraphicsScene;*/
}
/******************************************************************************
* Functions
******************************************************************************/
void YCbCrLabView::resetTransform()
{
m_pGraphicsView->resetTransform();
}
void YCbCrLabView::fitToView()
{
m_pGraphicsView->fitInView(m_pGraphicsPixmapItem, Qt::KeepAspectRatio);
}
long YCbCrLabView::getTotalFrames(void)
{
return m_pffSequence->getTotalFrames();
}
long YCbCrLabView::getCurrentFrame(void)
{
return m_pffSequence->getCurrentFrame();
}
void YCbCrLabView::setCurrentFrame(long frame, void *sender)
{
m_pffSequence->setCurrentFrame(frame, sender);
}
QString YCbCrLabView::getFileURI(void)
{
return QString::fromStdString(m_pffSequence->getFileURI());
}
ffViewer::ViewerPlane YCbCrLabView::getViewerPlane(void)
{
return m_viewerPlane;
}
void YCbCrLabView::setViewerPlane(ffViewer::ViewerPlane planeType)
{
if ((getState() == isValid) && (planeType != m_viewerPlane))
{
m_viewerPlane = planeType;
emit onFrameChanged(m_pffSequence->getCurrentFrame(), this);
m_pGraphicsView->setSceneRect(m_pGraphicsPixmapItem->boundingRect());
}
}
ffSequenceState YCbCrLabView::getState(void)
{
return m_pffSequence->getState();
}
void YCbCrLabView::openSequence(char *fileName)
{
try
{
if (getState() == isValid)
closeSequence();
m_pffSequence->readFile(fileName);
m_pGraphicsView->setSceneRect(0, 0,
m_pffSequence->getLumaSize().m_width,
m_pffSequence->getLumaSize().m_height);
}
catch (ffmpegError eff)
{
char errorC[1000];
av_strerror(eff.getError(), errorC, 1000);
QString message = tr("There was an error attempting to open the "
"file. <<FFMPEG: ") + QString(eff.what()) +
" (" + QString(errorC) + ")>>";
emit signal_stateChanged(isInvalid);
emit signal_error(message);
throw; // Pass up chain for proper UI handling.
}
catch (ffImportError eff)
{
QString message = tr("There was an error attempting to open the "
"file. <<FFERROR: ") + QString(eff.what()) +
" (" + QString::number(eff.getError()) + ")>>";
emit signal_stateChanged(isInvalid);
emit signal_error(message);
throw; // Pass up chain for proper UI handling.
}
}
void YCbCrLabView::saveSequence(void)
{
try
{
m_pffSequence->exportFiles();
}
catch (ffExportError eff)
{
QString message = tr("There was an error attempting to export. "
"<<FFEXPORTERROR: ") + QString(eff.what()) +
" (" + QString::number(eff.getError()) + ")>>";
emit signal_error(message);
throw; // Pass up chain for proper UI handling.
}
}
void YCbCrLabView::closeSequence(void)
{
if (getState() == isValid)
m_pffSequence->closeFile();
}
QffSequence * YCbCrLabView::getQffSequence(void)
{
return m_pffSequence;
}
QGraphicsPixmapItem* YCbCrLabView::getGraphicsPixmapItem(void)
{
return m_pGraphicsPixmapItem;
}
QTextPill* YCbCrLabView::getTextPillItem(void)
{
return m_pTextPill;
}
void YCbCrLabView::onFrameForward()
{
m_pSlider->setValue(getCurrentFrame() + 1);
}
void YCbCrLabView::onFrameBack()
{
m_pSlider->setValue(getCurrentFrame() - 1);
}
/******************************************************************************
* Slots
******************************************************************************/
void YCbCrLabView::onSliderChanged(long frame)
{
setCurrentFrame(frame, m_pSlider);
}
void YCbCrLabView::onScaleTimeslice(qreal)
{
QTransform matrix(m_pGraphicsView->matrix());
qreal factor = 1.0 + qreal(m_numScheduledScalings) / 500.0;
qreal scalefactor = matrix.m11() * factor;
if ((scalefactor >= MAXIMUM_SCALE) && (factor > 1.0))
scalefactor = MAXIMUM_SCALE;
else if ((scalefactor <= MINIMUM_SCALE) && (factor < 1.0))
scalefactor = MINIMUM_SCALE;
matrix.setMatrix(scalefactor, matrix.m12(), matrix.m13(),
matrix.m21(), scalefactor, matrix.m23(),
matrix.m31(), matrix.m32(), matrix.m33());
m_pGraphicsView->setTransform(QTransform(matrix));
}
void YCbCrLabView::onScaleAnimFinished(void)
{
if (m_numScheduledScalings > 0)
m_numScheduledScalings--;
else
m_numScheduledScalings++;
}
//void YCBCRLabView::onError(QString)
//{
//// emit signal_stateChanged(ffSequence::justErrored);
//}
void YCbCrLabView::onProgressStart(void)
{
m_pProgressBar->setMinimum(0);
m_pProgressBar->setMaximum(PROGRESS_MAXIMUM);
m_pProgressBar->setValue(0);
m_pgwProgressBar->setGraphicsEffect(m_pFadeProgressBar);
m_pFadeProgressBarAnimation->setDirection(QAbstractAnimation::Forward);
m_pgwProgressBar->setOpacity(YCBCRVIEW_OPAQUE);
m_pFadeProgressBarAnimation->start();
}
void YCbCrLabView::onProgress(double factor)
{
m_targetProgress = (factor * (double)PROGRESS_MAXIMUM);// +
//PROGRESS_MAXIMUM * TIMELINE_PROGRESS_DELAY;
if (m_pProgressTimeline->state() != QTimeLine::Running)
m_pProgressTimeline->start();
}
void YCbCrLabView::onProgressEnd(void)
{
m_pgwProgressBar->setGraphicsEffect(m_pFadeProgressBar);
m_pFadeProgressBarAnimation->setDirection(QAbstractAnimation::Backward);
m_pFadeProgressBarAnimation->start();
}
void YCbCrLabView::onProgressAnimation(qreal)
{
if (m_targetProgress > m_pProgressBar->value())
{
int step = ((double)m_targetProgress -
(double)m_pProgressBar->value());
m_pProgressBar->setValue(m_pProgressBar->value() + step);
m_pProgressBar->update();
}
else
{
m_pProgressTimeline->stop();
}
}
void YCbCrLabView::onJustLoading(void)
{
emit signal_stateChanged(justLoading);
}
void YCbCrLabView::onJustOpened(void)
{
emit signal_stateChanged(justOpened);
}
void YCbCrLabView::onJustClosed(void)
{
emit signal_stateChanged(justClosed);
}
//void YCBCRLabView::onJustErrored(void)
//{
// emit signal_stateChanged(ffSequence::justErrored);
//}
void YCbCrLabView::onStateChanged(ffSequenceState state)
{
switch (state)
{
case (isValid):
break;
case (isInvalid):
disconnect(m_pSlider, SIGNAL(signal_valueChanged(long)), this,
SLOT(onSliderChanged(long)));
m_pSlider->setEnabled(false);
m_pSlider->setMinimum(0);
m_pSlider->setValue(0);
m_pSlider->setMaximum(0);
break;
case (justLoading):
case (isLoading):
disconnect(m_pSlider, SIGNAL(signal_valueChanged(long)), this,
SLOT(onSliderChanged(long)));
m_pSlider->setEnabled(false);
m_pSlider->setMinimum(0);
m_pSlider->setValue(0);
m_pSlider->setMaximum(0);
break;
case (justOpened):
fitToView();
m_pSlider->setMaximum(getTotalFrames());
m_pSlider->setValue(ffDefault::FirstFrame);
m_pSlider->setMinimum(ffDefault::FirstFrame);
connect(m_pSlider, SIGNAL(signal_valueChanged(long)), this,
SLOT(onSliderChanged(long)));
m_pSlider->setEnabled(true);
m_pSlider->setGraphicsEffect(m_pFadeFrameScrubber);
m_pFadeFrameScrubberAnimation->setDirection(
QAbstractAnimation::Forward);
m_pSlider->setOpacity(YCBCRVIEW_OPAQUE);
m_pFadeFrameScrubberAnimation->start();
// FUTURE_RACE
m_pGraphicsPixmapItem->setGraphicsEffect(m_pFadePixmap);
m_pFadePixmapAnimation->setDirection(QAbstractAnimation::Forward);
m_pFadePixmapAnimation->start();
m_pTextPill->start(tr("Loaded file ") +
QString::fromStdString(m_pffSequence->getFileURI()));
break;
case (justClosed):
m_pGraphicsPixmapItem->setGraphicsEffect(m_pFadePixmap);
m_pFadePixmapAnimation->setDirection(QAbstractAnimation::Backward);
m_pFadePixmapAnimation->start();
m_pSlider->setGraphicsEffect(m_pFadeFrameScrubber);
m_pFadeFrameScrubberAnimation->setDirection(QAbstractAnimation::Backward);
m_pFadeFrameScrubberAnimation->start();
break;
}
}
void YCbCrLabView::onFrameChanged(long frame, void */*sender*/)
{
QImage *pImage = NULL;
ffRawFrame *pRawFrame = m_pffSequence->getRawFrame(frame);
switch (m_viewerPlane)
{
case (ffViewer::RGB):
case (ffViewer::Y):
pImage = new QImage(pRawFrame->m_pY,
m_pffSequence->getLumaSize().m_width,
m_pffSequence->getLumaSize().m_height,
QImage::Format_Indexed8);
break;
case (ffViewer::Cb):
pImage = new QImage(pRawFrame->m_pCb,
m_pffSequence->getChromaSize().m_width,
m_pffSequence->getChromaSize().m_height,
QImage::Format_Indexed8);
break;
case (ffViewer::Cr):
pImage = new QImage(pRawFrame->m_pCr,
m_pffSequence->getChromaSize().m_width,
m_pffSequence->getChromaSize().m_height,
QImage::Format_Indexed8);
break;
}
m_pGraphicsPixmapItem->setPixmap(QPixmap::fromImage(*pImage));
delete pImage;
update();
m_pTextPill->start(tr("Frame ") +
QString::number(m_pffSequence->getCurrentFrame()));
}
void YCbCrLabView::onExportTrimChanged(long in, long out, void *)
{
if ((in != m_pSlider->getTrim().m_in) &&
(out != m_pSlider->getTrim().m_out))
{
if (in != m_pSlider->getTrim().m_in)
m_pTextPill->start(tr("Export trim in and out updated to ") +
QString::number(in) + ":" +
QString::number(out));
}
else if (in != m_pSlider->getTrim().m_in)
{
m_pTextPill->start(tr("Export trim in updated to ") +
QString::number(in));
}
else
{
m_pTextPill->start(tr("Export trim out updated to ") +
QString::number(out));
}
m_pSlider->setTrim(in, out);
}
void YCbCrLabView::onExportTrimInPressed()
{
getQffSequence()->setExportTrimIn(m_pSlider->value(), m_pShortcutTrimIn);
}
void YCbCrLabView::onExportTrimOutPressed()
{
getQffSequence()->setExportTrimOut(m_pSlider->value(), m_pShortcutTrimOut);
}
void YCbCrLabView::onExportPlaneChanged(ffExportDetails::ExportPlane, void *)
{
// Pass. TODO Update TextPill
}
/*****************************************************************************
* Event Overrides
*****************************************************************************/
void YCbCrLabView::wheelEvent(QWheelEvent* event)
{
if (event->orientation() == Qt::Vertical)
{
int numDegrees = event->delta() / 8;
int numSteps = numDegrees / 10;
m_numScheduledScalings += numSteps;
if (m_numScheduledScalings * numSteps < 0)
m_numScheduledScalings = numSteps;
if (m_pTimeLine->state() != QTimeLine::Running)
m_pTimeLine->start();
}
}
void YCbCrLabView::resizeEvent(QResizeEvent *event)
{
QRect rect(QPoint(0,0), event->size());
m_pGraphicsView->setGeometry(rect);
m_pGraphicsViewOverlay->setGeometry(rect);
m_pGraphicsViewOverlay->setSceneRect(rect);
QSizeF dest = event->size() / 2;
m_pgwProgressBar->setGeometry(dest.width() / 2, dest.height() -
(PROGRESS_HEIGHT / 2),
dest.width(), PROGRESS_HEIGHT);
m_pSlider->setGeometry(SliderPadding, rect.size().height() -
m_pSlider->geometry().height() - SliderPadding,
rect.width() - (2 * SliderPadding),
m_pSlider->geometry().height());
m_pSlider->update();
m_pgwProgressBar->update();
}
void YCbCrLabView::mouseReleaseEvent(QMouseEvent *event)
{
m_pGraphicsView->eventFilter(m_pGraphicsView, event);
event->ignore();
}
void YCbCrLabView::mousePressEvent(QMouseEvent *event)
{
m_pGraphicsView->eventFilter(m_pGraphicsView, event);
event->ignore();
}
void YCbCrLabView::mouseMoveEvent(QMouseEvent *event)
{
m_pGraphicsView->eventFilter(m_pGraphicsView, event);
event->ignore();
}