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mainwindow.cpp
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mainwindow.cpp
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#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QFileDialog>
#include <QMessageBox>
#include <QDebug>
#include "opencvheader.h"
#include "window_addabnormalrange.h"
#include "configuration.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
gtv = NULL;
videoloader = NULL;
currState = UNINITIALIZED;
}
MainWindow::~MainWindow()
{
delete ui;
}
GTVideo* MainWindow::getGTVideo() const
{
return gtv;
}
void MainWindow::setState(States s)
{
currState = s;
}
//to open window to addabnormalrange with initial setup
void MainWindow::open_window_addabnormalrange()
{
newwindow_addAbnormalRange = new window_addAbnormalRange();
newwindow_addAbnormalRange->setMainWindow(this);
newwindow_addAbnormalRange->setGTVideo(gtv);
newwindow_addAbnormalRange->show();
}
void MainWindow::setupTimer(int interval, char method)
{
timer = new QTimer(this);
if (NULL != timer)
{
switch(method)
{
case 'S':
connect(timer, SIGNAL(timeout()), this, SLOT(updateSlider())); break;
default:
qDebug() << "MainWindow::setupTimer: Wrong timer out handler.";
return;
}
timer->start(interval);
//qDebug() << QString("Timer ID=%1 started.").arg(timer->timerId());
}
}
void MainWindow::stopTimer()
{
//qDebug() << QString("Timer ID=%1 stopped.").arg(timer->timerId());
timer->stop();
}
// Load video from a video file
void MainWindow::on_actionVideo_triggered()
{
// check if the video is already loaded
if ((int)currState >= (int)VIDEO_LOADED)
{
QMessageBox msgBox;
msgBox.setText("Video has already been loaded.");
msgBox.setInformativeText("Do you want to overwrite it?");
msgBox.setStandardButtons(QMessageBox::No | QMessageBox::Yes);
msgBox.setDefaultButton(QMessageBox::No);
int ret = msgBox.exec();
if (QMessageBox::No == ret)
{
return;
}
else
{
delete gtv;
gtv = NULL;
currState = UNINITIALIZED;
}
}
QString filter = tr("Video fiels(*.avi *.mpg *.webm*.ogg *.ogv );; All files(*.*)");
QString filePath = QFileDialog::getOpenFileName(this, tr("Import Video"), "", filter);
// create a thread to load video file
if ("" != filePath)
{
// create GTVideo following delete the previously saved one
if (NULL != gtv)
{
delete gtv;
}
gtv = new GTVideo(VIDEO, filePath);
if (NULL != videoloader)
{
delete videoloader;
}
videoloader = new LoadVideoThread(filePath, VIDEO, gtv);
connect(videoloader, SIGNAL(completeLoading(bool)), this, SLOT(videoload_completed(bool)), Qt::QueuedConnection);
videoloader->start();
timer = new QTimer(this); // timer begins
connect(timer, SIGNAL(timeout()), this, SLOT(updateSlider()));
setupTimer(500, 'S'); // timer begins
}
}
// Load video from images in a user-specified folder
void MainWindow::on_actionImages_triggered()
{
// check if the video is already loaded
if ((int)currState >= (int)VIDEO_LOADED)
{
QMessageBox msgBox;
msgBox.setText("Video has already been loaded.");
msgBox.setInformativeText("Do you want to overwrite it?");
msgBox.setStandardButtons(QMessageBox::No | QMessageBox::Yes);
msgBox.setDefaultButton(QMessageBox::No);
msgBox.setIcon(QMessageBox::Warning);
int ret = msgBox.exec();
if (QMessageBox::No == ret)
{
return;
}
else
{
delete gtv;
gtv = NULL;
currState = UNINITIALIZED;
}
}
// select directory when the frames are
QString dirPath = QFileDialog::getExistingDirectory(this,
tr("Import Video"),
QDir::currentPath(),
QFileDialog::ShowDirsOnly);
if ("" != dirPath)
{
// create GTVideo following delete the previously saved one
if (NULL != gtv)
{
delete gtv;
}
gtv = new GTVideo(IMAGES, dirPath);
if (NULL != videoloader)
{
delete videoloader;
}
videoloader = new LoadVideoThread(dirPath, IMAGES, gtv);
connect(videoloader, SIGNAL(completeLoading(bool)), this, SLOT(videoload_completed(bool)), Qt::QueuedConnection);
videoloader->start();
timer = new QTimer(this); // timer begins
connect(timer, SIGNAL(timeout()), this, SLOT(updateSlider()));
setupTimer(500, 'S'); // timer begins
}
}
void MainWindow::updateSlider()
{
if (timer->isActive())
{
ui->Slider_videoloaded->setMaximum(gtv->getFrameNumber());
ui->Slider_videoloaded->update();
ui->loadvideo_progressBar->setMaximum(gtv->getFrameCount());
ui->loadvideo_progressBar->setValue(gtv->getFrameNumber());
ui->loadvideo_progressBar->update();
}
}
// processing when videoloader thread terminates
void MainWindow::videoload_completed(bool result)
{
stopTimer(); // timer ends
if (!result)
{
QMessageBox msgBox;
msgBox.setText("Cannot load video");
msgBox.exec();
}
else
{
gtv->setFrameCount(gtv->getFrameNumber());
ui->Slider_videoloaded->setMaximum(gtv->getFrameCount());
ui->Slider_videoloaded->setValue(1);
// since framecount is inacurate, so update it to 100% when loading finishes
ui->loadvideo_progressBar->setMaximum(gtv->getFrameCount()-1);
ui->loadvideo_progressBar->setValue(gtv->getFrameNumber()-1);
ui->loadvideo_progressBar->update();
qDebug() << QString("Frames loaded: %1").arg(gtv->getFrameCount());
// to generate background image of the loaded video
gtv->setBackground();
gtv->estimateBackground();
// to substract backgroud to get foregroundmask for every frame
gtv->setForegroundMask();
// set state
currState = VIDEO_LOADED;
}
}
void MainWindow::on_Slider_videoloaded_valueChanged(int value)
{
if (NULL != gtv)
{
if(gtv->getFrameNumber()>0 && value>=0 && value<gtv->getFrameCount())
{
//ui->Slider_videoloaded->setMaximum(gtv->getFrameNumber());
cv::Mat frame_curr=gtv->retrieveFrame(value);
QImage img_curr= QImage((const unsigned char*)( frame_curr.data),
frame_curr.cols,frame_curr.rows,QImage::Format_RGB888);
ui->label_fcurr->setPixmap(QPixmap::fromImage(img_curr));
ui->label_fcurr->setScaledContents(true);
QString strCurrPos = "";
strCurrPos.append(QString("Frame:%1").arg(value));
statusBar()->showMessage(strCurrPos);
ui->label_fcurr->update();
}
}
else
{
QMessageBox msgBox;
msgBox.setText("Please select video to preview!");
msgBox.setIcon(QMessageBox::Warning);
msgBox.exec();
}
}
void MainWindow::on_actionAddBoundary_triggered()
{
if (((int)currState>=(int)VIDEO_LOADED) && (NULL != gtv))
{
open_window_addabnormalrange();
}
else
{
QMessageBox msgBox;
msgBox.setText("Please select video to load!");
msgBox.setIcon(QMessageBox::Warning);
msgBox.exec();
}
}
// previous frame
void MainWindow::on_Button_prev_clicked()
{
int currFramePos = ui->Slider_videoloaded->value();
if (currFramePos>=1)
{
emit ui->Slider_videoloaded->setSliderPosition(currFramePos-1);
}
}
// next frame
void MainWindow::on_Button_next_clicked()
{
int currFramePos = ui->Slider_videoloaded->value();
if (currFramePos<gtv->getFrameNumber())
{
emit ui->Slider_videoloaded->setSliderPosition(currFramePos+1);
}
}
void MainWindow::on_actionGroundtruth_2_triggered()
{
if ((int)currState >= (int)CONF_FINISHED)
{
// generate groundtruth
gtv->generateGroundtruth(enumTrackAlgo);
// if post-processing (morphological openning) is specified
if (bPostProcessingGT)
{
gtv->postProcessing(strelsize);
}
// save results
if (gtv->saveSourceToFiles(strOriginalFrames) &&
gtv->saveGroundtruthToFiles(strGroundtruthSavePath))
{
currState = TRUTH_SAVED;
}
}
else
{
QMessageBox msgBox;
QString warning = "Finish the following prior generating groundtruth:\n"
" Loading video;\n"
" Selecting abnormal ranges;\n"
" Configuration;";
msgBox.setIcon(QMessageBox::Information);
msgBox.setText(warning);
msgBox.exec();
}
}
void MainWindow::on_actionConfiguration_triggered()
{
configuration *pConf = new configuration();
qRegisterMetaType<ConfigParam>("ConfigParam");
connect(pConf, SIGNAL(configuration_finished(ConfigParam)),
this, SLOT(set_configuration(ConfigParam)), Qt::QueuedConnection);
pConf->open();
}
void MainWindow::set_configuration(QString gtPath, QString origframePath, TrackType trackAlgo)
{
strGroundtruthSavePath = gtPath;
strOriginalFrames = origframePath;
enumTrackAlgo = trackAlgo;
currState = CONF_FINISHED;
}
void MainWindow::set_configuration(ConfigParam config)
{
strGroundtruthSavePath = config.strGroundtruthPath;
strOriginalFrames = config.strOrigFramePath;
enumTrackAlgo = config.trackAlgo;
bPostProcessingGT = config.morphopen;
strelsize = config.strelsize;
currState = CONF_FINISHED;
}
void MainWindow::on_actionExit_triggered()
{
this->close();
}