void TMGraphView::mouseReleaseEvent(QMouseEvent * event)
{
if(event->button() == Qt::LeftButton)
{
// User is trying to select an event
if(abs(drag_start.x() - event->pos().x()) < 10 || abs(drag_start.y() - event->pos().y()) < 10)
{
Event ev = findEventAt(event->pos());
emit eventDescriptionQueried(ev); // Mongoclient "should" reply with the description
}
}
else if(event->button() == Qt::RightButton)
{
if(abs(zoom_start.x() - event->pos().x()) < 10 || abs(zoom_start.y() - event->pos().y()) < 10)
return; // probably a missclick
if(zoom_state == ZOOM_FORWARD)
{
addressMove((long long)(min(zoom_start.x(), event->pos().x())/address_zoom_factor));
timeMove((long long)(min(zoom_start.y(), event->pos().y())/time_zoom_factor));
address_zoom_factor *= width()/(double)abs(zoom_start.x() - event->pos().x());
time_zoom_factor *= height()/(double)abs(zoom_start.y() - event->pos().y());
}
else if(zoom_state == ZOOM_BACKWARD)
{
address_zoom_factor *= abs(zoom_start.x() - event->pos().x())/(double)width();
time_zoom_factor *= abs(zoom_start.y() - event->pos().y())/(double)height();
addressMove(-(long long)(min(zoom_start.x(), event->pos().x())/address_zoom_factor));
timeMove(-(long long)(min(zoom_start.y(), event->pos().y())/time_zoom_factor));
}
zoom_state = NO_ZOOM;
update();
}
}
void TMGraphView::keyPressEvent(QKeyEvent * event)
{
static const double speed = 0.05;
if(event->key() == Qt::Key_Up)
{
timeMove((long)(-height()*speed/time_zoom_factor));
update();
}
else if(event->key() == Qt::Key_Down)
{
timeMove((long)(height()*speed/time_zoom_factor));
update();
}
else if(event->key() == Qt::Key_Left)
{
addressMove((long)(-width()*speed/address_zoom_factor));
update();
}
else if(event->key() == Qt::Key_Right)
{
addressMove((long)(width()*speed/address_zoom_factor));
update();
}
else if(event->key() == Qt::Key_Plus)
{
size_px+=1;
update();
}
else if(event->key() == Qt::Key_Minus)
{
size_px=max(size_px-1,1);
update();
}
}
void TMGraphView::mouseMoveEvent(QMouseEvent * event)
{
if(event->buttons() & Qt::LeftButton)
{
addressMove((long)((drag_last_pos.x()-event->pos().x())/address_zoom_factor));
drag_last_pos.setX(event->pos().x());
timeMove((long)((drag_last_pos.y()-event->pos().y())/time_zoom_factor));
drag_last_pos.setY(event->pos().y());
update();
}
emit cursorPositionChange(displayAddressToRealAddress(view_address + (long long)(event->pos().x()/address_zoom_factor)),
view_time + (long long)(event->pos().y()/time_zoom_factor));
}
void TMGraphView::wheelEvent(QWheelEvent *event)
{
event->accept();
double f = (event->angleDelta().y()+event->angleDelta().x())/2000.0;
Qt::KeyboardModifiers mod = QGuiApplication::keyboardModifiers();
if(mod == Qt::NoModifier || mod == Qt::ControlModifier)
{
addressMove((long long)(event->pos().x()/address_zoom_factor*(2*f)/(1+f)));
address_zoom_factor *= (1+f)/(1-f);
}
if(mod == Qt::NoModifier || mod == Qt::ShiftModifier)
{
timeMove((long long)(event->pos().y()/time_zoom_factor*(2*f)/(1+f)));
time_zoom_factor *= (1+f)/(1-f);
}
else if(mod ==Qt::AltModifier)
{
size_factor *= (1+f)/(1-f);
if(size_factor < 1)
size_factor = 1;
}
update();
}
