void LadybugWidget::mousePressEvent(QMouseEvent* e)
{
if (NAVIGATION_RECT.contains(e->pos()))
{
// handle navigation
navigationMousePress(e);
}
else
{
// handle images from cameras
// we're interested only to right click - reset zoom
if (e->button() != Qt::RightButton)
return;
for (int i = 0; i < CAMERAS; i++)
{
if (cameraRect(i).contains(e->pos()))
{
setCameraZoom(i, 1);
if (mPaused)
updateVideo(getSingleFrame(mCurrentFrame));
break;
}
}
}
}
void LadybugWidget::navigationMousePress(QMouseEvent* e)
{
QRect arrowRect = QRect(QPoint(-5, 0), QPoint(5, -10));
QPoint centerPt = NAVIGATION_RECT.center();
QMatrix m;
m.translate(centerPt.x(), centerPt.y());
for (int i = 0; i < 5; i++)
{
QMatrix m2 = m;
m2.rotate(i*360/5);
m2.translate(0,-16);
QPoint resPt = m2.inverted().map(e->pos());
if (arrowRect.contains(resPt))
{
// invert camera on/off setting
setCameraState(i, !cameraState(i));
if (mPaused)
updateVideo(getSingleFrame(mCurrentFrame));
}
}
}
void LadybugWidget::pause()
{
mPaused = !mPaused;
if (mPaused)
{
mTimer.stop();
mPlaybackStartTime = QTime();
// terminate thread
stopPlayerThread();
// make sure we're where we paused the video
updateVideo(getSingleFrame(mCurrentFrame));
}
else
{
// create thread, pass the stream
mThread = new LadybugPlayerThread(mStream);
mThread->setCameras(cameraMask());
mThread->start();
// in update routine: show frame + get next frame + run timer
updateVideoPlayback();
}
if (mPauseButton)
mPauseButton->setText(mPaused ? "|>" : "||");
}
void LadybugWidget::wheelEvent(QWheelEvent* e)
{
for (int cam = 0; cam < CAMERAS; cam++)
{
QRect r = cameraRect(cam);
if (r.contains(e->pos()))
{
QPointF oldOffset;
double oldZoom = cameraZoom(cam, &oldOffset);
// negative = zoom in
const double FACTOR = 1.25;
double zoom = oldZoom * (e->delta() > 0 ? 1/FACTOR : FACTOR);
if (zoom < 1) zoom = 1;
if (zoom > 4) zoom = 4;
if (zoom == oldZoom) return;
QPointF pos = (e->pos()-r.topLeft())/oldZoom;
QPointF newPos = pos * oldZoom/zoom;
QPointF offset = oldOffset + pos - newPos;
printf("delta %d | pos %.1f,%.1f | new_pos %.1f,%.1f | zoom %.2f | offset %.1f,%.1f\n", e->delta(), pos.x(),pos.y(), newPos.x(), newPos.y(), zoom, offset.x(), offset.y());
setCameraZoom(cam, zoom, offset);
if (mPaused)
updateVideo(getSingleFrame(mCurrentFrame));
break;
}
}
}
void LadybugWidget::seekToTime(uint msecs)
{
mStream.seekToTime(msecs);
int frameId = mStream.currentFrame();
printf("frame id: %d\n", frameId);
if (mPaused)
{
updateVideo(getSingleFrame(frameId));
}
else
{
//mThread->seekToFrame(frameId);
pause();
updateVideo(getSingleFrame(frameId));
pause();
}
update();
}
void LadybugWidget::seekToFrame(int frameId)
{
if (frameId < 0)
frameId = 0;
if (frameId == mCurrentFrame)
return;
printf("SEEK! %d\n", frameId);
if (mPaused)
{
updateVideo(getSingleFrame(frameId));
}
else
{
//mThread->seekToFrame(frameId);
pause();
updateVideo(getSingleFrame(frameId));
pause();
}
update();
}
bool LadybugWidget::openStream(QString baseName)
{
bool res = mStream.openForReading(baseName);
if (!res)
return false;
if (mSlider)
mSlider->setRange(0, mStream.framesCount()-1);
// show first frame
LadybugPlayerFrame f = getSingleFrame(0);
mStartTime = f.time;
updateVideo(f);
return true;
}
void LadybugWidget::keyPressEvent(QKeyEvent* e)
{
if (e->key() >= Qt::Key_1 && e->key() <= Qt::Key_5)
{
int i = e->key()-Qt::Key_1;
// invert camera on/off setting
setCameraState(i, !cameraState(i));
if (mPaused)
updateVideo(getSingleFrame(mCurrentFrame));
}
switch (e->key())
{
case Qt::Key_Space:
pause();
break;
case Qt::Key_Left:
seekToFrame(mCurrentFrame-1);
break;
case Qt::Key_Right:
seekToFrame(mCurrentFrame+1);
break;
case Qt::Key_Home:
seekToFrame(0);
break;
case Qt::Key_End:
seekToFrame(mStream.framesCount()-1);
break;
case Qt::Key_PageUp:
seekToFrame(mCurrentFrame-25);
break;
case Qt::Key_PageDown:
seekToFrame(mCurrentFrame+25);
break;
// %%% seek to random position (for testing)
case Qt::Key_S:
{
uint msecs = rand() % (mStream.framesCount() / 15 * 1000);
printf("RANDOM TIME SEEK! %d ms\n", msecs);
seekToTime(msecs);
break;
}
}
}
TpReceiveTransaction::TpReceiveTransaction(Can *can,/*int transmitDescriptor, int acknowlegmentDescriptor, */QObject *parent) :
QObject(parent),
movingFrames (can, parent),
state (INIT),
timer()
{
blockSize = 0;
consIndex = blockSize;
QObject::connect(&movingFrames, SIGNAL(receiveSingleFrame(SingleFrame)), this, SLOT(getSingleFrame(SingleFrame)));
QObject::connect(&movingFrames, SIGNAL(receiveFirstFrame(FirstFrame)), this, SLOT(getFirstFrame(FirstFrame)));
QObject::connect(&movingFrames, SIGNAL(receiveConsecutiveFrame(ConsecutiveFrame)), this, SLOT(getConsecutiveFrame(ConsecutiveFrame)));
QObject::connect(this, SIGNAL(sendFlowControl(FlowControlFrame)), &movingFrames, SLOT(transmitFlowControlFrame(FlowControlFrame)));
QObject::connect(&timer, SIGNAL(timeout()), this, SLOT(timeout()));
}
