gui/src/session/Visualization.cpp

   1 #include <QPainter>
   2 #include <QLabel>
   3 #include "Visualization.h"
   4 #include "Visualization.moc"
   5
   6 Visualization::Visualization(DataThread *data_thread, QWidget *parent)
   7     : QWidget(parent), v_thread(NULL), data_thread(data_thread), current_image(NULL) {
   8
   9     main_layout = new QVBoxLayout();
  10
  11     from_slider = new TimeSlider();
  12     to_slider = new TimeSlider();
  13     main_layout->addWidget(new QLabel(tr("From:")));
  14     main_layout->addWidget(from_slider);
  15     setLayout(main_layout);
  16 }
  17
  18 Visualization::~Visualization() {
  19     if(v_thread) {
  20         v_thread->get_request_queue()->push_request(NULL);
  21         v_thread->wait();
  22     }
  23 }
  24
  25 void Visualization::initialize() {
  26     v_thread = create_v_thread(data_thread);
  27     if(v_thread == NULL) {
  28         qDebug("Failed to create v_thread!");
  29         this->deleteLater();
  30         return;
  31     }
  32     connect(v_thread, SIGNAL(replace_image(QImage*)), SLOT(update_image(QImage*)));
  33     v_thread->start();
  34 }
  35
  36 void Visualization::paintEvent(QPaintEvent *event) {
  37     /*QWidget::paintEvent(event);
  38     if(!current_image) return;
  39     QPainter painter(this);
  40     painter.scale(qreal(geometry().width()) / current_image->width(), qreal(geometry().height()) / current_image->height());
  41     painter.drawImage(0, 0, *current_image);*/
  42     QWidget::paintEvent(event);
  43 }
  44
  45 void Visualization::update_image(QImage *image) {
  46     current_image = image;
  47 }