void _drawWithMaskFilter(Rect meshBounds, Action <Paint> drawAction, Paint paint, MaskFilter maskFilter)
{
var layer = this._currentLayer;
var clipBounds = layer.layerBounds;
Rect stackBounds;
bool iior;
layer.clipStack.getBounds(out stackBounds, out iior);
if (stackBounds != null)
{
clipBounds = clipBounds.intersect(stackBounds);
}
if (clipBounds.isEmpty)
{
return;
}
var state = layer.currentState;
float sigma = state.scale * maskFilter.sigma;
if (sigma <= 0)
{
return;
}
float sigma3 = 3 * sigma;
var maskBounds = meshBounds.inflate(sigma3);
maskBounds = maskBounds.intersect(clipBounds.inflate(sigma3));
if (maskBounds.isEmpty)
{
return;
}
var maskLayer = this._createMaskLayer(layer, maskBounds, drawAction, paint);
var blurLayer = this._createBlurLayer(maskLayer, sigma, layer);
var blurMesh = ImageMeshGenerator.imageMesh(null, Rect.one, maskBounds);
if (!this._applyClip(blurMesh.bounds))
{
return;
}
layer.draws.Add(CanvasShader.texRT(layer, paint, blurMesh, blurLayer));
}
public static void debugPaintPadding(Canvas canvas, Rect outerRect, Rect innerRect, float outlineWidth = 2.0f)
{
assert(() => {
if (innerRect != null && !innerRect.isEmpty)
{
_debugDrawDoubleRect(canvas, outerRect, innerRect, new Color(0x900090FF));
_debugDrawDoubleRect(canvas, innerRect.inflate(outlineWidth).intersect(outerRect), innerRect,
new Color(0xFF0090FF));
}
else
{
Paint paint = new Paint();
paint.color = new Color(0x90909090);
canvas.drawRect(outerRect, paint);
}
return(true);
});
}