Method mouseMoveEvent

DSView/pv/view/header.cpp:413–469

}

void Header::mouseMoveEvent(QMouseEvent *event)
{
	assert(event);

    if (_view.session().is_working() && _view.session().get_device()->get_work_mode() == LOGIC){
        //Disable the hover status of trig button on left pannel.
        return;
    }

	_mouse_point = event->pos();

    // Move the Traces if we are dragging
    if (!_drag_traces.empty()) {
		const int delta = event->pos().y() - _mouse_down_point.y();

        for (auto i = _drag_traces.begin(); i != _drag_traces.end(); i++) {
            const auto t = (*i).first;
			if (t) {
                int y = (*i).second + delta;
                if (t->get_type() == SR_CHANNEL_DSO) {
                    DsoSignal *dsoSig = NULL;
                    if ((dsoSig = dynamic_cast<DsoSignal*>(t))) {
                        dsoSig->set_zero_vpos(y);
                        _moveFlag = true;
                        traces_moved();
                    }
                } else if (t->get_type() == SR_CHANNEL_MATH) {
                    MathTrace *mathTrace = NULL;
                    if ((mathTrace = dynamic_cast<MathTrace*>(t))) {
                       mathTrace->set_zero_vpos(y);
                       _moveFlag = true;
                       traces_moved();
                    }
                 } else if (t->get_type() == SR_CHANNEL_ANALOG) {
                    AnalogSignal *analogSig = NULL;
                    if ((analogSig = dynamic_cast<AnalogSignal*>(t))) {
                        analogSig->set_zero_vpos(y);
                        _moveFlag = true;
                        traces_moved();
                    }
                } else {
                    if (~QApplication::keyboardModifiers() & Qt::ControlModifier) {
                        const int y_snap =
                            ((y + View::SignalSnapGridSize / 2) /
                                View::SignalSnapGridSize) *
                                View::SignalSnapGridSize;
                        if (y_snap != t->get_v_offset()) {
                            _moveFlag = true;
                            t->set_v_offset(y_snap);
                        }
                    }
                }
			}
		}
	}
	update();
}