render method - CanvasShadowWrapper class - stagexl library

override

void render(RenderState renderState)

Renders this display object with the given renderState. The display object is rendered without its filters.

Source

@override
void render(RenderState renderState) {
  var renderContext = renderState.renderContext;
  if (renderContext is RenderContextCanvas) {
    CanvasRenderingContext2D rawContext = renderContext.rawContext;
    Matrix shadowMatrix = renderState.globalMatrix;
    rawContext.save();
    rawContext.shadowColor = color2rgba(shadowColor);
    rawContext.shadowBlur = sqrt(shadowMatrix.det) * shadowBlur;
    rawContext.shadowOffsetX = shadowOffsetX * shadowMatrix.a + shadowOffsetY * shadowMatrix.c;
    rawContext.shadowOffsetY = shadowOffsetX * shadowMatrix.b + shadowOffsetY * shadowMatrix.d;
    renderState.renderObject(this.displayObject);
    rawContext.restore();
  } else {
    renderState.renderObject(this.displayObject);
  }
}