public PxMatrix CalcMatrix(PxSize viewPort, PxRectangle imageSize)
{
if (Option == PreserveAspectRatioOption.None)
{
return(PxMatrix.Translation(
viewPort.Width / imageSize.Width,
viewPort.Height / imageSize.Height,
0,
0
));
}
var scale = Option == PreserveAspectRatioOption.Meet
? Math.Min(
viewPort.Height / imageSize.Height,
viewPort.Width / imageSize.Width
)
: Math.Max(
viewPort.Height / imageSize.Height,
viewPort.Width / imageSize.Width
);
var scaledW = imageSize.Width * scale;
var scaledH = imageSize.Height * scale;
var scaleX = scaledW / imageSize.Width;
var scaleY = scaledH / imageSize.Height;
return(PxMatrix.Translation(
scaleX,
scaleY,
imageSize.X + CalcOffset(AlignX, viewPort.Width, scaledW), // / scaleX,
imageSize.Y + CalcOffset(AlignY, viewPort.Height, scaledH) // / scaleY
));
}
public static Task Render(IElement element, IFrameContext context, RendererDirect2D render)
{
if (TransformHelper.IsHidden(element))
{
return(Task.CompletedTask);
}
using (TransformHelper.Create(render, element, context))
using (LayerHelper.Create(render, element, context))
{
var font = element.GetFont(context);
var fill = element.GetFill(context);
var fillBrush = render.CreateBrush(element, context, fill.Brush, fill.Opacity);
if (fillBrush == null)
{
return(Task.CompletedTask);
}
foreach (var text in element.Children.OfType <ITextContent>())
{
using (var textLayout = render.CreateTextLayout(font, text.Content, 999999))
{
var frameSize = context.Size;
var textSize = new PxSize(textLayout.Metrics.WidthIncludingTrailingWhitespace, textLayout.Metrics.Height);
var scale = CalcScale(frameSize, textSize);
var matrix = PxMatrix.Translation(
scale,
scale,
(frameSize.Width - (scale * textSize.Width)) / 2f,
(frameSize.Height - (scale * textSize.Height)) / 2f
);
using (TransformHelper.Create(render, matrix))
{
render.Target.DrawTextLayout(
new DXM.RawVector2(0, 0),
textLayout,
fillBrush,
D2D1.DrawTextOptions.EnableColorFont
);
}
}
}
return(Task.CompletedTask);
}
}