public override Region CreateXor(Region another)
{
CpuBlitRegion rgnB = another as CpuBlitRegion;
if (rgnB == null)
{
return(null);
}
switch (rgnB.Kind)
{
default: throw new System.NotSupportedException();
case CpuBlitRegionKind.BitmapBasedRegion:
//another is bitmap-based rgn
//we need to create bitmap presentation of this vxs rgn
//and then send this bitmap to operate with another rgn
break;
case CpuBlitRegionKind.MixedRegion:
break;
case CpuBlitRegionKind.VxsRegion:
return(new VxsRegion(VxsClipper.CombinePaths(_vxs, ((VxsRegion)another)._vxs, VxsClipperType.Xor, false, null)));
}
return(null);
}
public static TempContext <VxsClipper> Borrow(out VxsClipper clipper)
{
if (!Temp <VxsClipper> .IsInit())
{
Temp <VxsClipper> .SetNewHandler(
() => new VxsClipper(),
c => c.Reset());
}
return(Temp <VxsClipper> .Borrow(out clipper));
}
void CreateAndRenderCombined(Painter p, VertexStoreSnap ps1, VertexStoreSnap ps2)
{
List <VertexStore> combined = null;
switch (this.OpOption)
{
default: throw new NotSupportedException();
case OperationOption.None:
return;
case OperationOption.OR:
combined = VxsClipper.CombinePaths(ps1, ps2, VxsClipperType.Union, false);
break;
case OperationOption.AND:
combined = VxsClipper.CombinePaths(ps1, ps2, VxsClipperType.InterSect, false);
break;
case OperationOption.XOR:
combined = VxsClipper.CombinePaths(ps1, ps2, VxsClipperType.Xor, false);
break;
case OperationOption.A_B:
combined = VxsClipper.CombinePaths(ps1, ps2, VxsClipperType.Difference, false);
break;
case OperationOption.B_A:
combined = VxsClipper.CombinePaths(ps2, ps1, VxsClipperType.Difference, false);
break;
}
if (combined != null)
{
p.FillColor = ColorEx.Make(0.5f, 0.0f, 0f, 0.5f);
p.Fill(new VertexStoreSnap(combined[0]));
//graphics2D.Render(new VertexStoreSnap(combined[0]), ColorRGBAf.MakeColorRGBA(0.5f, 0.0f, 0f, 0.5f));
}
}
static VertexStore BuildArrow(bool solidHead)
{
VertexStore arrow;
VertexStore stem;
using (VectorToolBox.Borrow(out Stroke stroke))
using (VxsTemp.Borrow(out var v1))
using (VxsTemp.Borrow(out var v3, out var v4))
{
if (solidHead)
{
v1.AddMoveTo(5, 20);
v1.AddLineTo(10, 10);
v1.AddLineTo(15, 20);
v1.AddCloseFigure();
arrow = v1.CreateTrim();
BuildLine(10, 20, 10, 50, v3);
stem = v3.CreateTrim();
}
else
{
v1.AddMoveTo(5, 20);
v1.AddLineTo(10, 10);
v1.AddLineTo(15, 20);
stroke.LineJoin = LineJoin.Round;
stroke.LineCap = LineCap.Round;
stroke.Width = 3;
arrow = stroke.CreateTrim(v1);
BuildLine(10, 10, 10, 50, v3);
stem = v3.CreateTrim();
}
arrow = VxsClipper.CombinePaths(arrow, stem, VxsClipperType.Union, false, null);
return(arrow.ScaleToNewVxs(3, v4).CreateTrim());
}
}
public override Region CreateExclude(Region another)
{
CpuBlitRegion rgnB = another as CpuBlitRegion;
if (rgnB == null)
{
return(null);
}
switch (rgnB.Kind)
{
default: throw new System.NotSupportedException();
case CpuBlitRegionKind.BitmapBasedRegion:
break;
case CpuBlitRegionKind.MixedRegion:
break;
case CpuBlitRegionKind.VxsRegion:
return(new VxsRegion(VxsClipper.CombinePaths(_vxs, ((VxsRegion)another)._vxs, VxsClipperType.Difference, false, null)));
}
return(null);
}
