/// <summary>
/// Configure paint wrapper for using tile brush.
/// </summary>
/// <param name="paintWrapper">Paint wrapper.</param>
/// <param name="targetSize">Target size.</param>
/// <param name="tileBrush">Tile brush to use.</param>
/// <param name="tileBrushImage">Tile brush image.</param>
private void ConfigureTileBrush(ref PaintWrapper paintWrapper, Size targetSize, ITileBrush tileBrush, IDrawableBitmapImpl tileBrushImage)
{
var calc = new TileBrushCalculator(tileBrush, tileBrushImage.PixelSize.ToSizeWithDpi(_dpi), targetSize);
var intermediate = CreateRenderTarget(calc.IntermediateSize);
paintWrapper.AddDisposable(intermediate);
using (var context = intermediate.CreateDrawingContext(null))
{
var sourceRect = new Rect(tileBrushImage.PixelSize.ToSizeWithDpi(96));
var targetRect = new Rect(tileBrushImage.PixelSize.ToSizeWithDpi(_dpi));
context.Clear(Colors.Transparent);
context.PushClip(calc.IntermediateClip);
context.Transform = calc.IntermediateTransform;
context.DrawBitmap(
RefCountable.CreateUnownedNotClonable(tileBrushImage),
1,
sourceRect,
targetRect,
tileBrush.BitmapInterpolationMode);
context.PopClip();
}
var tileTransform =
tileBrush.TileMode != TileMode.None
? SKMatrix.CreateTranslation(-(float)calc.DestinationRect.X, -(float)calc.DestinationRect.Y)
: SKMatrix.CreateIdentity();
SKShaderTileMode tileX =
tileBrush.TileMode == TileMode.None
? SKShaderTileMode.Clamp
: tileBrush.TileMode == TileMode.FlipX || tileBrush.TileMode == TileMode.FlipXY
? SKShaderTileMode.Mirror
: SKShaderTileMode.Repeat;
SKShaderTileMode tileY =
tileBrush.TileMode == TileMode.None
? SKShaderTileMode.Clamp
: tileBrush.TileMode == TileMode.FlipY || tileBrush.TileMode == TileMode.FlipXY
? SKShaderTileMode.Mirror
: SKShaderTileMode.Repeat;
var image = intermediate.SnapshotImage();
paintWrapper.AddDisposable(image);
var paintTransform = default(SKMatrix);
SKMatrix.Concat(
ref paintTransform,
tileTransform,
SKMatrix.CreateScale((float)(96.0 / _dpi.X), (float)(96.0 / _dpi.Y)));
using (var shader = image.ToShader(tileX, tileY, paintTransform))
{
paintWrapper.Paint.Shader = shader;
}
}
/// <summary>
/// Configure paint wrapper to use visual brush.
/// </summary>
/// <param name="paintWrapper">Paint wrapper.</param>
/// <param name="visualBrush">Visual brush.</param>
/// <param name="visualBrushRenderer">Visual brush renderer.</param>
/// <param name="tileBrushImage">Tile brush image.</param>
private void ConfigureVisualBrush(ref PaintWrapper paintWrapper, IVisualBrush visualBrush, IVisualBrushRenderer visualBrushRenderer, ref IDrawableBitmapImpl tileBrushImage)
{
if (_visualBrushRenderer == null)
{
throw new NotSupportedException("No IVisualBrushRenderer was supplied to DrawingContextImpl.");
}
var intermediateSize = visualBrushRenderer.GetRenderTargetSize(visualBrush);
if (intermediateSize.Width >= 1 && intermediateSize.Height >= 1)
{
var intermediate = CreateRenderTarget(intermediateSize);
using (var ctx = intermediate.CreateDrawingContext(visualBrushRenderer))
{
ctx.Clear(Colors.Transparent);
visualBrushRenderer.RenderVisualBrush(ctx, visualBrush);
}
tileBrushImage = intermediate;
paintWrapper.AddDisposable(tileBrushImage);
}
}
/// <summary>
/// Configure paint wrapper for using tile brush.
/// </summary>
/// <param name="paintWrapper">Paint wrapper.</param>
/// <param name="targetSize">Target size.</param>
/// <param name="tileBrush">Tile brush to use.</param>
/// <param name="tileBrushImage">Tile brush image.</param>
/// <param name="interpolationMode">The bitmap interpolation mode.</param>
private void ConfigureTileBrush(ref PaintWrapper paintWrapper, Size targetSize, ITileBrush tileBrush, IDrawableBitmapImpl tileBrushImage)
{
var calc = new TileBrushCalculator(tileBrush,
new Size(tileBrushImage.PixelWidth, tileBrushImage.PixelHeight), targetSize);
var intermediate = CreateRenderTarget(
(int)calc.IntermediateSize.Width,
(int)calc.IntermediateSize.Height, _dpi);
paintWrapper.AddDisposable(intermediate);
using (var context = intermediate.CreateDrawingContext(null))
{
var rect = new Rect(0, 0, tileBrushImage.PixelWidth, tileBrushImage.PixelHeight);
context.Clear(Colors.Transparent);
context.PushClip(calc.IntermediateClip);
context.Transform = calc.IntermediateTransform;
context.DrawImage(RefCountable.CreateUnownedNotClonable(tileBrushImage), 1, rect, rect, tileBrush.BitmapInterpolationMode);
context.PopClip();
}
var tileTransform =
tileBrush.TileMode != TileMode.None
? SKMatrix.MakeTranslation(-(float)calc.DestinationRect.X, -(float)calc.DestinationRect.Y)
: SKMatrix.MakeIdentity();
SKShaderTileMode tileX =
tileBrush.TileMode == TileMode.None
? SKShaderTileMode.Clamp
: tileBrush.TileMode == TileMode.FlipX || tileBrush.TileMode == TileMode.FlipXY
? SKShaderTileMode.Mirror
: SKShaderTileMode.Repeat;
SKShaderTileMode tileY =
tileBrush.TileMode == TileMode.None
? SKShaderTileMode.Clamp
: tileBrush.TileMode == TileMode.FlipY || tileBrush.TileMode == TileMode.FlipXY
? SKShaderTileMode.Mirror
: SKShaderTileMode.Repeat;
var image = intermediate.SnapshotImage();
paintWrapper.AddDisposable(image);
using (var shader = image.ToShader(tileX, tileY, tileTransform))
{
paintWrapper.Paint.Shader = shader;
}
}
