Method transformPattern

Engine/TrackerNodeInteract.cpp:1486–1777

}

void
TrackerNodeInteract::transformPattern(double time,
                                      TrackerMouseStateEnum state,
                                      const Point& delta)
{
    KnobDoublePtr searchWndTopRight, searchWndBtmLeft;
    KnobDoublePtr patternCorners[4];
    TrackerContextPtr context = getContext();
    KnobDoublePtr centerKnob = interactMarker->getCenterKnob();
    KnobDoublePtr offsetKnob = interactMarker->getOffsetKnob();
    bool transformPatternCorners = state != eMouseStateDraggingOuterBtmLeft &&
                                   state != eMouseStateDraggingOuterBtmRight &&
                                   state != eMouseStateDraggingOuterTopLeft &&
                                   state != eMouseStateDraggingOuterTopRight &&
                                   state != eMouseStateDraggingOuterMidLeft &&
                                   state != eMouseStateDraggingOuterMidRight &&
                                   state != eMouseStateDraggingOuterTopMid &&
                                   state != eMouseStateDraggingOuterBtmMid;

    if (transformPatternCorners) {
        patternCorners[0] = interactMarker->getPatternTopLeftKnob();
        patternCorners[1] = interactMarker->getPatternBtmLeftKnob();
        patternCorners[2] = interactMarker->getPatternBtmRightKnob();
        patternCorners[3] = interactMarker->getPatternTopRightKnob();
    }
    searchWndTopRight = interactMarker->getSearchWindowTopRightKnob();
    searchWndBtmLeft = interactMarker->getSearchWindowBottomLeftKnob();

    QPointF centerPoint;
    centerPoint.rx() = centerKnob->getValueAtTime(time, 0);
    centerPoint.ry() = centerKnob->getValueAtTime(time, 1);

    QPointF offset;
    offset.rx() = offsetKnob->getValueAtTime(time, 0);
    offset.ry() = offsetKnob->getValueAtTime(time, 1);

    QPointF patternPoints[4];
    QPointF searchPoints[4];
    if (transformPatternCorners) {
        for (int i = 0; i < 4; ++i) {
            patternPoints[i].rx() = patternCorners[i]->getValueAtTime(time, 0) + centerPoint.x() + offset.x();
            patternPoints[i].ry() = patternCorners[i]->getValueAtTime(time, 1) + centerPoint.y() + offset.y();
        }
    }
    searchPoints[1].rx() = searchWndBtmLeft->getValueAtTime(time, 0) + centerPoint.x() + offset.x();
    searchPoints[1].ry() = searchWndBtmLeft->getValueAtTime(time, 1) + centerPoint.y() + offset.y();

    searchPoints[3].rx() = searchWndTopRight->getValueAtTime(time, 0) + centerPoint.x() + offset.x();
    searchPoints[3].ry() = searchWndTopRight->getValueAtTime(time, 1) + centerPoint.y() + offset.y();

    searchPoints[0].rx() = searchPoints[1].x();
    searchPoints[0].ry() = searchPoints[3].y();

    searchPoints[2].rx() = searchPoints[3].x();
    searchPoints[2].ry() = searchPoints[1].y();

    if ( (state == eMouseStateDraggingInnerBtmLeft) ||
         ( state == eMouseStateDraggingOuterBtmLeft) ) {