public void Paint(Painter p)
{
using (VgPaintArgsPool.Borrow(p, out var paintArgs))
{
paintArgs._currentTx = _currentTx;
_vgVisElem.Paint(paintArgs);
}
}
public void Paint(Painter p)
{
using (Tools.More.BorrowVgPaintArgs(p, out var paintArgs))
{
paintArgs._currentTx = _currentTx;
_vgVisElem.Paint(paintArgs);
}
}
protected override void RenderClientContent(DrawBoard d, UpdateArea updateArea)
{
using (Tools.More.BorrowVgPaintArgs(d.GetPainter(), out var paintArgs))
{
_renderVx.Paint(paintArgs);
}
//d.FillRectangle(Color.Blue, 0, 0, 50, 50);
}
MemBitmap ParseAndRenderSvg(System.Text.StringBuilder svgContent)
{
//----------
//copy from HtmlRenderer's SvgViewer demo
//----------
var docBuilder = new VgDocBuilder();
var parser = new SvgParser(docBuilder);
TextSnapshot textSnapshot = new TextSnapshot(svgContent.ToString());
parser.ParseDocument(textSnapshot);
VgVisualDocBuilder builder = new VgVisualDocBuilder();
VgVisualElement vgVisElem = builder.CreateVgVisualDoc(docBuilder.ResultDocument, _vgDocHost).VgRootElem;
PixelFarm.CpuBlit.VertexProcessing.Q1RectD bounds = vgVisElem.GetRectBounds();
float actualXOffset = (float)-bounds.Left;
float actualYOffset = (float)-bounds.Bottom;
int bmpW = (int)Math.Round(bounds.Width);
int bmpH = (int)Math.Round(bounds.Height);
if (bmpW == 0 || bmpH == 0)
{
return(null);
}
MemBitmap memBitmap = new MemBitmap(bmpW, bmpH);
using (Tools.BorrowAggPainter(memBitmap, out var p))
using (Tools.More.BorrowVgPaintArgs(p, out var paintArgs))
{
float orgX = p.OriginX;
float orgY = p.OriginY;
p.SetOrigin(actualXOffset, actualYOffset);
p.Clear(PixelFarm.Drawing.Color.White);
p.FillColor = PixelFarm.Drawing.Color.Black;
double prevStrokeW = p.StrokeWidth;
vgVisElem.Paint(paintArgs);
p.StrokeWidth = prevStrokeW; //restore
p.SetOrigin(orgX, orgY); //restore
}
return(memBitmap);
}
PixelFarm.CpuBlit.MemBitmap CreateBitmap(VgVisualElement renderVx, int reqW, int reqH)
{
PixelFarm.CpuBlit.RectD bound = renderVx.GetRectBounds();
//create
PixelFarm.CpuBlit.MemBitmap backingBmp = new PixelFarm.CpuBlit.MemBitmap((int)bound.Width + 10, (int)bound.Height + 10);
#if DEBUG
backingBmp._dbugNote = "renderVx";
#endif
//PixelFarm.CpuBlit.AggPainter painter = PixelFarm.CpuBlit.AggPainter.Create(backingBmp);
using (PixelFarm.CpuBlit.AggPainterPool.Borrow(backingBmp, out PixelFarm.CpuBlit.AggPainter painter))
using (VgPaintArgsPool.Borrow(painter, out VgPaintArgs paintArgs))
{
double prevStrokeW = painter.StrokeWidth;
renderVx.Paint(paintArgs);
painter.StrokeWidth = prevStrokeW;//restore
}
return(backingBmp);
}
protected override void PaintImp(PaintVisitor p)
{
#if DEBUG
p.dbugEnterNewContext(this, PaintVisitor.PaintVisitorContextName.Init);
#endif
DrawBoard drawBoard = p.InnerDrawBoard;
if (DisableBmpCache)
{
PixelFarm.CpuBlit.AggPainter painter = drawBoard.GetPainter() as PixelFarm.CpuBlit.AggPainter;
if (painter == null)
{
return;
}
//TODO: review here
//temp fix
if (s_openfontTextService == null)
{
s_openfontTextService = new OpenFontTextService();
}
//painter.CurrentFont = new RequestFont("tahoma", 14);
//var textPrinter = new PixelFarm.Drawing.Fonts.VxsTextPrinter(painter, s_openfontTextService);
//painter.TextPrinter = textPrinter;
//painter.Clear(Color.White);
//
double prevStrokeW = painter.StrokeWidth;
//Color fillColor = painter.FillColor;
//painter.StrokeWidth = 1;//default
//painter.FillColor = Color.Black;
using (Tools.More.BorrowVgPaintArgs(painter, out var paintArgs))
{
if (_vgVisualElem.CoordTx != null)
{
}
_vgVisualElem.Paint(paintArgs);
}
painter.StrokeWidth = prevStrokeW;//restore
//painter.FillColor = fillColor;////restore
return;
}
if (_vgVisualElem.HasBitmapSnapshot)
{
Image backimg = _vgVisualElem.BackingImage;
drawBoard.DrawImage(backimg, new RectangleF(0, 0, backimg.Width, backimg.Height));
}
else
{
PixelFarm.CpuBlit.RectD bound = _vgVisualElem.GetRectBounds();
//create
PixelFarm.CpuBlit.MemBitmap backimg = new PixelFarm.CpuBlit.MemBitmap((int)bound.Width + 10, (int)bound.Height + 10);
#if DEBUG
backimg._dbugNote = "cssBoxSvgRoot";
#endif
PixelFarm.CpuBlit.AggPainter painter = PixelFarm.CpuBlit.AggPainter.Create(backimg);
//TODO: review here
//temp fix
if (s_openfontTextService == null)
{
s_openfontTextService = new OpenFontTextService();
}
//
double prevStrokeW = painter.StrokeWidth;
using (Tools.More.BorrowVgPaintArgs(painter, out VgPaintArgs paintArgs))
{
if (_vgVisualElem.CoordTx != null)
{
}
_vgVisualElem.Paint(paintArgs);
}
painter.StrokeWidth = prevStrokeW;//restore
//painter.FillColor = fillColor;////restore
#if DEBUG
//test
//PixelFarm.CpuBlit.Imaging.PngImageWriter.dbugSaveToPngFile(backimg, "d:\\WImageTest\\subimg1.png");
#endif
_vgVisualElem.SetBitmapSnapshot(backimg, true);
drawBoard.DrawImage(backimg, new RectangleF(0, 0, backimg.Width, backimg.Height));
}
}
public static void ParseAndRenderSvg(PixelFarm.Drawing.SvgBmpBuilderReq req)
{
//----------
//copy from HtmlRenderer's SvgViewer demo
//----------
var docBuilder = new VgDocBuilder();
var parser = new SvgParser(docBuilder);
TextSnapshot textSnapshot = new TextSnapshot(req.SvgContent.ToString());
parser.ParseDocument(textSnapshot);
VgVisualDocBuilder builder = new VgVisualDocBuilder();
VgVisualElement vgVisElem = builder.CreateVgVisualDoc(docBuilder.ResultDocument, _vgDocHost).VgRootElem;
PixelFarm.CpuBlit.VertexProcessing.Q1RectD bounds = vgVisElem.GetRectBounds();
float actualXOffset = (float)-bounds.Left;
float actualYOffset = (float)-bounds.Bottom;
//original svg width, height
int bmpW = (int)Math.Round(bounds.Width);
int bmpH = (int)Math.Round(bounds.Height);
if (bmpW == 0 || bmpH == 0)
{
return;
}
//scale svg to specific size
float scale_w = req.ExpectedWidth / bmpW;
//at this point, we have 2 options
//1) create bitmap with original svg size and scale it down to expected size
//2) scale svg to expected size and create a bitmap
//we choose 2)
int new_w = (int)Math.Round(bmpW * scale_w);
int new_h = (int)Math.Round(bmpH * scale_w);
MemBitmap memBitmap = new MemBitmap(new_w, new_h);
using (Tools.BorrowAggPainter(memBitmap, out var p))
using (Tools.More.BorrowVgPaintArgs(p, out VgPaintArgs paintArgs))
{
//pass by
Affine tx = Affine.NewScaling(scale_w);
paintArgs._currentTx = tx;
float orgX = p.OriginX;
float orgY = p.OriginY;
p.SetOrigin(actualXOffset * scale_w, actualYOffset * scale_w);
p.Clear(req.DefaultBgColor);
p.FillColor = PixelFarm.Drawing.Color.Black;
double prevStrokeW = p.StrokeWidth;
vgVisElem.Paint(paintArgs);
p.StrokeWidth = prevStrokeW; //restore
p.SetOrigin(orgX, orgY); //restore
}
#if DEBUG
//memBitmap.SaveImage("svg.png");
#endif
req.Output = memBitmap;
}
