/// <inheritdoc />
public override void Render(SKCanvas canvas, SKRect bounds, SKPaint paint)
{
_lastBounds = bounds;
// For brevity's sake
ColorGradient gradient = Properties.Colors.BaseValue;
SKMatrix matrix = SKMatrix.Concat(
SKMatrix.CreateRotationDegrees(Properties.Rotation, bounds.MidX, bounds.MidY),
SKMatrix.CreateTranslation(_scrollX, _scrollY)
);
// LinearGradientRepeatMode.Mirror is currently the only setting that requires a different tile mode
SKShaderTileMode tileMode = Properties.RepeatMode.CurrentValue == LinearGradientRepeatMode.Mirror
? SKShaderTileMode.Mirror
: SKShaderTileMode.Repeat;
// Render gradient
paint.Shader = SKShader.CreateLinearGradient(
new SKPoint(bounds.Left, bounds.Top),
new SKPoint(
(Properties.Orientation == LinearGradientOrientationMode.Horizontal ? bounds.Right : bounds.Left) * Properties.WaveSize / 100,
(Properties.Orientation == LinearGradientOrientationMode.Horizontal ? bounds.Top : bounds.Bottom) * Properties.WaveSize / 100
),
gradient.GetColorsArray(0, Properties.RepeatMode.CurrentValue == LinearGradientRepeatMode.RepeatSeamless),
gradient.GetPositionsArray(0, Properties.RepeatMode.CurrentValue == LinearGradientRepeatMode.RepeatSeamless),
tileMode,
matrix
);
canvas.DrawRect(bounds, paint);
paint.Shader?.Dispose();
paint.Shader = null;
}
