public DominoRenderer(ProjectCanvas pc)
{
_noSkia = new FormattedText()
{
Text = "Current rendering API is not Skia"
};
Bounds = new Rect(0, 0, pc.Bounds.Width, pc.Bounds.Height);
TightBounds = pc.TransformedBounds;
shift_x = (float)pc.ShiftX;
shift_y = (float)pc.ShiftY;
zoom = (float)pc.Zoom;
unselectedBorderColor = pc.UnselectedBorderColor.ToSKColor();
selectedBorderColor = pc.SelectedBorderColor.ToSKColor();
pasteHightlightColor = Colors.Violet.ToSKColor();
deletionHighlightColor = SKColors.Red;
selectionColor = pc.SelectionDomainColor.ToSKColor();
selectionPath = pc.SelectionDomain.Clone();
this.project = pc.Project;
// Transform the selection path into screen coordinates
var transform = SKMatrix.CreateScaleTranslation(zoom, zoom, -shift_x * zoom, -shift_y * zoom);
this.ProjectHeight = (float)pc.ProjectHeight;
this.ProjectWidth = (float)pc.ProjectWidth;
this.above = pc.SourceImageAbove;
this.background = pc.BackgroundColor.ToSKColor();
this.AdditionalDrawables = pc.AdditionalDrawables;
selectionPath?.Transform(transform);
selectionVisible = pc.SelectionDomainVisible;
bitmap = pc.SourceImage;
bitmapopacity = (byte)(pc.SourceImageOpacity * 255);
dominoopacity = (byte)(pc.DominoOpacity * 255);
BorderSize = pc.BorderSize;
}
public static SKMatrix GetFullSvgScaledMatrix(int width, int height, SKPicture picture)
{
float imageScale = height / picture.CullRect.Height;
float xPosition = (picture.CullRect.Width * imageScale) / 2;
return(SKMatrix.CreateScaleTranslation(imageScale, imageScale, (width / 2) - xPosition, 0));
}
void canvasFront_PaintSurface(System.Object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKCanvas canvas = e.Surface.Canvas;
canvas.Clear();
SKMatrix matrix = DrawHelper.GetFullSvgScaledMatrix(e.Info.Width, e.Info.Height, pictureFront);
canvas.DrawPicture(pictureFront, ref matrix);
float offsetY = e.Info.Height / 5;
foreach (DrawItem item in DrawData.DrawnPathsFront)
{
SKPath p = new SKPath(item.Path);
float offsetCalcY = (float)DrawHelper.GetOffsetCalculationsForFullDisplay(item.Area, offsetY);
float offsetCalcX = ((e.Info.Width - matrix.TransX) / 2.0f) * 0.375f;
p.Transform(SKMatrix.CreateScaleTranslation(0.25f, 0.25f, offsetCalcX, offsetCalcY));
_data.Add(new SvgData
{
BodyRegion = item.Area.ToString(),
IsFront = true,
StrokeColor = item.Paint.Color.ToFormsColor(),
StrokeWidth = item.Paint.StrokeWidth,
SvgPath = p.ToSvgPathData(),
ConcernName = item.Name
});
canvas.DrawPath(p, DrawHelper.GetScaledPaintObject(item.Paint.Color, item.Paint.StrokeWidth));
}
imageDataF = e.Surface.Snapshot();
}
public static SKMatrix GetAreaSvgScaledMatrix(int width, int height, SKPicture picture, BodyArea areaUsed)
{
float imageScale = (height / picture.CullRect.Height) * 4.0f;
float tY = (float)GetOffsetCalculations(areaUsed, height);
float axisScale = picture.CullRect.Width * imageScale;
float xPosition = (width - axisScale) / 2;
return(SKMatrix.CreateScaleTranslation(imageScale, imageScale, xPosition, tY));
}
public void DesenharSvg(ISvgElement svgDoc, Transformacao matriz)
{
using (var paint = new SKPaint())
{
var escala = matriz.Escala.Value;
var posicao = matriz.Posicao.Value;
var matrix = SKMatrix.CreateScaleTranslation(escala.X, escala.Y, posicao.X, posicao.Y);
paint.IsAntialias = true;
paint.ImageFilter = Color.FromHex("#66000000").ToSKDropShadow(6, 12f);
paint.MaskFilter = SKMaskFilter.CreateBlur(SKBlurStyle.Normal, Constantes.SVG.Mapa.DESFOQUE_SOMBRA);
if (svgDoc is SKSvgElement svgElement)
{
_canvas.DrawPicture(svgElement.ToSkia(), ref matrix, paint);
}
}
}
private void DrawAdditionals(SKCanvas canvas, bool beforeBorders)
{
try
{
foreach (CanvasDrawable d in AdditionalDrawables.ToList())
{
if (d == null)
{
continue;
}
if (d.BeforeBorders == beforeBorders)
{
var transform = SKMatrix.CreateScaleTranslation(zoom, zoom, -shift_x * zoom, -shift_y * zoom);
d.Render(canvas, transform);
}
}
}
catch {} // happens mostly when AdditionalDrawables is modified during a render pass. This triggers a redraw anyway, so let's ignore it
}
protected override void OnPaintSurface(SKPaintSurfaceEventArgs args)
{
base.OnPaintSurface(args);
SKImageInfo info = args.Info;
SKSurface surface = args.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear(SkiaHelper.backgroundColor);
// 计算显示位图的矩形
var rect = SkiaHelper.CalculateRectangle(new SKRect(0, 0, info.Width, info.Height), bitmap);
canvas.DrawBitmap(bitmap, rect.rect);
// 计算用于显示裁剪矩形的矩阵变换
SKMatrix bitmapScaleMatrix = SKMatrix.CreateIdentity();
SKMatrix.CreateScaleTranslation(rect.scaleX, rect.scaleX, rect.rect.Left, rect.rect.Top);
// 显示矩形
SKRect scaledCropRect = bitmapScaleMatrix.MapRect(croppingRect.Rect);
using (SKPaint edgeStroke = new SKPaint())
{
edgeStroke.Style = SKPaintStyle.Stroke;
edgeStroke.Color = SKColors.White;
edgeStroke.StrokeWidth = 3;
edgeStroke.IsAntialias = true;
canvas.DrawRect(scaledCropRect, edgeStroke);
}
canvas.DrawSurrounding(rect.rect, scaledCropRect, SKColors.Gray.WithAlpha(190));
// Display heavier corners
using (SKPaint cornerStroke = new SKPaint())
using (SKPath path = new SKPath())
{
cornerStroke.Style = SKPaintStyle.Stroke;
cornerStroke.Color = SKColors.White;
cornerStroke.StrokeWidth = 7;
path.MoveTo(scaledCropRect.Left, scaledCropRect.Top + corner);
path.LineTo(scaledCropRect.Left, scaledCropRect.Top);
path.LineTo(scaledCropRect.Left + corner, scaledCropRect.Top);
path.MoveTo(scaledCropRect.Right - corner, scaledCropRect.Top);
path.LineTo(scaledCropRect.Right, scaledCropRect.Top);
path.LineTo(scaledCropRect.Right, scaledCropRect.Top + corner);
path.MoveTo(scaledCropRect.Right, scaledCropRect.Bottom - corner);
path.LineTo(scaledCropRect.Right, scaledCropRect.Bottom);
path.LineTo(scaledCropRect.Right - corner, scaledCropRect.Bottom);
path.MoveTo(scaledCropRect.Left + corner, scaledCropRect.Bottom);
path.LineTo(scaledCropRect.Left, scaledCropRect.Bottom);
path.LineTo(scaledCropRect.Left, scaledCropRect.Bottom - corner);
canvas.DrawPath(path, cornerStroke);
}
// 反转变换以进行触摸跟踪
bitmapScaleMatrix.TryInvert(out inverseBitmapMatrix);
}