void PerspectiveCamera::mouseDragged(CameraScratch &scratch, QMouseEvent *event)
{
int xDiff = scratch.pickX - event->pos().x();
int yDiff = scratch.pickY - event->pos().y();
if (scratch.moveType == MoveType::ROTATING) {
Vector3 origLook = eye() + lookDir();
setYRot(yRot() + xDiff * 0.5f);
setUpRot(upRot() + yDiff * -0.5f);
// move eye to look at original focal point (Maya style)
Vector3 lookAway = lookDir() * -1;
setCenter(origLook + lookAway);
}
else if (scratch.moveType == MoveType::PANNING) {
float panScale = 0.05f;
Vector3 mUp = scratch.origUp * -1.0f * yDiff * panScale;
Vector3 mLeft = scratch.origLeft * -1.0f * xDiff * panScale;
setCenter(eye() + mUp + mLeft);
} else if (scratch.moveType == MoveType::TRUCKING) {
Point3 at = lookat();
Vector3 l = lookDir() * -0.01f * yDiff;
setCenter(l + center());
}
scratch.pickX = event->pos().x();
scratch.pickY = event->pos().y();
}
void
SimulationWidget::mouseMoveEvent(QMouseEvent *event)
{
int dx = event->x() - this->lastPos.x();
int dy = event->y() - this->lastPos.y();
if (event->buttons() & Qt::LeftButton)
{
setXRot(this->xRot + dy);
setYRot(this->yRot + dx);
}
else if (event->buttons() & Qt::RightButton)
setZRot(this->zRot + dx);
this->lastPos = event->pos();
}//end mouseMoveEvent
