clear method
Implementation
@override
void clear(int color) {
setTransform(_identityMatrix);
setBlendMode(BlendMode.NORMAL);
setAlpha(1);
final alpha = colorGetA(color);
if (alpha < 255) {
_renderingContext.clearRect(
0, 0, _canvasElement.width!, _canvasElement.height!);
}
if (alpha > 0) {
_renderingContext.fillStyle = color2rgba(color);
_renderingContext.fillRect(
0, 0, _canvasElement.width!, _canvasElement.height!);
}
}