Method mousePressEvent

DSView/pv/view/viewport.cpp:640–786

}

void Viewport::mousePressEvent(QMouseEvent *event)
{
	assert(event);
    
	_mouse_down_point = event->pos();
	_mouse_down_offset = _view.offset();
    _drag_strength = 0;
    _elapsed_time.restart();

    if (_action_type == NO_ACTION
        && event->button() == Qt::RightButton
        && _view.session().is_stopped_status())
    {
        if (_view.session().get_device()->get_work_mode() == LOGIC) {
            set_action(LOGIC_ZOOM);
        }
        else if (_view.session().get_device()->get_work_mode() == DSO) {
            if (_hover_hit) {
                const int64_t index = _view.pixel2index(event->pos().x());
                auto &cursor_list = _view.get_cursorList();
                _view.add_cursor(index);
                _view.show_cursors(true);
            }
        }
    }

    if (_action_type == NO_ACTION &&
        event->button() == Qt::LeftButton &&
        _view.session().get_device()->get_work_mode() == DSO) {

       for(auto s : _view.session().get_signals()) 
       { 
            if (s->signal_type() == SR_CHANNEL_DSO && s->enabled()) {
                DsoSignal *dsoSig = (DsoSignal*)s;
                if (dsoSig->get_trig_rect(0, _view.get_view_width()).contains(_mouse_point)) {
                   _drag_sig = s;
                   set_action(DSO_TRIG_MOVE);
                   dsoSig->select(true);
                   break;
                }
            }
        }
    }

    if (_action_type == NO_ACTION
            && event->button() == Qt::LeftButton) {
        if (_action_type == NO_ACTION && _view.search_cursor_shown()) {
            const int64_t searchX = _view.index2pixel(_view.get_search_cursor()->index());

            if (_view.get_search_cursor()->grabbed()) {
                _view.get_ruler()->rel_grabbed_cursor();
            }
            else if (qAbs(searchX - event->pos().x()) <= HitCursorMargin) {
                _view.get_ruler()->set_grabbed_cursor(_view.get_search_cursor());
                set_action(CURS_MOVE);
            }    
        }