beginSoftMasked method

@override void beginSoftMasked()

Starts capturing painted content that an ExtGState /SMask will mask. Visual devices open an offscreen layer; others can ignore the pair.

Implementation

@override
void beginSoftMasked() {
  flushPending(); // earlier strips must not be captured by the layer
  _groupKnockout.add(false);
  delegateBeginSoftMasked();
}