public void BeforeRender(RectFloat clipRect)
{
if ((!this.afterRenderCalled || this.beforeRenderCalled) || this.renderCalled)
{
throw new PaintDotNet.InternalErrorException();
}
this.afterRenderCalled = false;
this.beforeRenderCalled = true;
base.VerifyAccess();
double scaleRatio = this.canvasView.ScaleRatio;
bool flag = scaleRatio == ((int)scaleRatio);
int index = (int)DoubleUtil.Clamp(this.ConvertScaleRatioToMipLevel(scaleRatio), 0.0, (double)(this.MipLevelCount - 1));
DocumentCanvasLayerViewMipLayer item = this.mipLayers[index];
if (this.mipLayerZOrder.IndexOf(item) != 0)
{
this.mipLayerZOrder.Remove(item);
this.mipLayerZOrder.Insert(0, item);
item.IsVisible = true;
item.IsActive = true;
this.canvasView.Invalidate();
}
this.tileCaches[this.mipLayerZOrder[0].MipLevel].ProcessTileRenderedQueue();
this.mipLayerZOrder[0].BeforeRender(clipRect);
for (int i = this.mipLayerZOrder.Count - 1; i >= 1; i--)
{
this.mipLayerZOrder[i].BeforeRender(clipRect);
this.mipLayerZOrder[i].IsActive = false;
}
}
public void Render(IDrawingContext dc, RectFloat clipRect)
{
if ((!this.beforeRenderCalled || this.renderCalled) || this.afterRenderCalled)
{
throw new PaintDotNet.InternalErrorException();
}
this.renderCalled = true;
using (dc.UseAntialiasMode(AntialiasMode.Aliased))
{
double scaleRatio = this.canvasView.ScaleRatio;
double d = this.ConvertScaleRatioToMipLevel(scaleRatio);
int num3 = (int)Math.Floor(d);
bool flag = Math.Abs((double)(d - Math.Round(d, MidpointRounding.AwayFromZero))) < 0.01;
bool isHighQualityScalingEnabled = DocumentCanvasLayer.GetIsHighQualityScalingEnabled(this.canvasView);
for (int i = this.mipLayerZOrder.Count - 1; i >= 0; i--)
{
DocumentCanvasLayerViewMipLayer layer = this.mipLayerZOrder[i];
if (layer.MipLevel == 0)
{
if (flag)
{
layer.Render(dc, clipRect, 1f, BitmapInterpolationMode.NearestNeighbor);
}
else if (scaleRatio < 1.0)
{
layer.Render(dc, clipRect, 1f, isHighQualityScalingEnabled ? BitmapInterpolationMode.Linear : BitmapInterpolationMode.NearestNeighbor);
}
else
{
layer.Render(dc, clipRect, 1f, BitmapInterpolationMode.NearestNeighbor);
if ((scaleRatio < 2.0) & isHighQualityScalingEnabled)
{
double num5 = d - num3;
double num6 = 1.0 - (((1.0 - num5) * (1.0 - num5)) * (1.0 - num5));
double num7 = DoubleUtil.Clamp(num6, 0.0, 1.0);
layer.Render(dc, clipRect, (float)num7, BitmapInterpolationMode.Linear);
}
}
}
else
{
layer.Render(dc, clipRect, 1f, isHighQualityScalingEnabled ? BitmapInterpolationMode.Linear : BitmapInterpolationMode.NearestNeighbor);
}
}
}
}
