public void CreateCap(VertexStore output, VertexDistance v0, VertexDistance v1, double len)
{
output.Clear();
double dx1 = (v1.y - v0.y) / len;
double dy1 = (v1.x - v0.x) / len;
double dx2 = 0;
double dy2 = 0;
dx1 *= m_width;
dy1 *= m_width;
if (m_line_cap != LineCap.Round)
{
if (m_line_cap == LineCap.Square)
{
dx2 = dy1 * m_width_sign;
dy2 = dx1 * m_width_sign;
}
AddVertex(output, v0.x - dx1 - dx2, v0.y + dy1 - dy2);
AddVertex(output, v0.x + dx1 - dx2, v0.y - dy1 - dy2);
}
else
{
double da = Math.Acos(m_width_abs / (m_width_abs + 0.125 / m_approx_scale)) * 2;
double a1;
int i;
int n = (int)(Math.PI / da);
da = Math.PI / (n + 1);
AddVertex(output, v0.x - dx1, v0.y + dy1);
if (m_width_sign > 0)
{
a1 = Math.Atan2(dy1, -dx1);
a1 += da;
for (i = 0; i < n; i++)
{
AddVertex(output, v0.x + Math.Cos(a1) * m_width,
v0.y + Math.Sin(a1) * m_width);
a1 += da;
}
}
else
{
a1 = Math.Atan2(-dy1, dx1);
a1 -= da;
for (i = 0; i < n; i++)
{
AddVertex(output, v0.x + Math.Cos(a1) * m_width,
v0.y + Math.Sin(a1) * m_width);
a1 -= da;
}
}
AddVertex(output, v0.x + dx1, v0.y - dy1);
}
}
public void dbugLine(double x1, double y1, double x2, double y2, Drawing.Color color)
{
dbug_v1.AddMoveTo(x1, y1);
dbug_v1.AddLineTo(x2, y2);
//dbug_v1.AddStop();
dbugStroke.MakeVxs(dbug_v1, dbug_v2);
Render(dbug_v2, color);
dbug_v1.Clear();
dbug_v2.Clear();
}
static Affine BuildImageBoundsPath(int srcW, int srcH,
VertexStore drawImageRectPath, AffinePlan[] affPlans)
{
drawImageRectPath.Clear();
drawImageRectPath.AddMoveTo(0, 0);
drawImageRectPath.AddLineTo(srcW, 0);
drawImageRectPath.AddLineTo(srcW, srcH);
drawImageRectPath.AddLineTo(0, srcH);
drawImageRectPath.AddCloseFigure();
return(Affine.NewMatix(affPlans));
}
static Affine BuildImageBoundsPath(int srcW, int srcH,
AffinePlan[] affPlans,
VertexStore outputDestImgRect)
{
outputDestImgRect.Clear();
outputDestImgRect.AddMoveTo(0, 0);
outputDestImgRect.AddLineTo(srcW, 0);
outputDestImgRect.AddLineTo(srcW, srcH);
outputDestImgRect.AddLineTo(0, srcH);
outputDestImgRect.AddCloseFigure();
return(Affine.NewMatix(affPlans));
}
Affine BuildImageBoundsPath(IImageReaderWriter sourceImage,
VertexStore drawImageRectPath, AffinePlan[] affPlans)
{
int srcW = sourceImage.Width;
int srcH = sourceImage.Height;
drawImageRectPath.Clear();
drawImageRectPath.AddMoveTo(0, 0);
drawImageRectPath.AddLineTo(srcW, 0);
drawImageRectPath.AddLineTo(srcW, srcH);
drawImageRectPath.AddLineTo(0, srcH);
drawImageRectPath.AddCloseFigure();
return(Affine.NewMatix(affPlans));
}
Affine BuildImageBoundsPath(IImageReaderWriter sourceImage,
VertexStore drawImageRectPath,
double destX, double destY,
double hotspotOffsetX, double hotSpotOffsetY,
double scaleX, double scaleY,
double angleRad)
{
AffinePlan[] plan = new AffinePlan[4];
int i = 0;
if (hotspotOffsetX != 0.0f || hotSpotOffsetY != 0.0f)
{
plan[i] = AffinePlan.Translate(-hotspotOffsetX, -hotSpotOffsetY);
i++;
}
if (scaleX != 1 || scaleY != 1)
{
plan[i] = AffinePlan.Scale(scaleX, scaleY);
i++;
}
if (angleRad != 0)
{
plan[i] = AffinePlan.Rotate(angleRad);
i++;
}
if (destX != 0 || destY != 0)
{
plan[i] = AffinePlan.Translate(destX, destY);
i++;
}
int srcW = sourceImage.Width;
int srcH = sourceImage.Height;
drawImageRectPath.Clear();
drawImageRectPath.AddMoveTo(0, 0);
drawImageRectPath.AddLineTo(srcW, 0);
drawImageRectPath.AddLineTo(srcW, srcH);
drawImageRectPath.AddLineTo(0, srcH);
drawImageRectPath.AddCloseFigure();
return(Affine.NewMatix(plan));
}
static Affine BuildImageBoundsPath(
int srcW, int srcH,
double destX, double destY, VertexStore outputDestImgRect)
{
AffinePlan plan = new AffinePlan();
if (destX != 0 || destY != 0)
{
plan = AffinePlan.Translate(destX, destY);
}
outputDestImgRect.Clear();
outputDestImgRect.AddMoveTo(0, 0);
outputDestImgRect.AddLineTo(srcW, 0);
outputDestImgRect.AddLineTo(srcW, srcH);
outputDestImgRect.AddLineTo(0, srcH);
outputDestImgRect.AddCloseFigure();
return(Affine.NewMatix(plan));
}
static Affine BuildImageBoundsPath(
int srcW, int srcH,
double destX, double destY,
double hotspotOffsetX, double hotSpotOffsetY,
double scaleX, double scaleY,
double angleRad,
VertexStore outputDestImgRect)
{
AffinePlan[] plans = new AffinePlan[4];
int i = 0;
if (hotspotOffsetX != 0.0f || hotSpotOffsetY != 0.0f)
{
plans[i] = AffinePlan.Translate(-hotspotOffsetX, -hotSpotOffsetY);
i++;
}
if (scaleX != 1 || scaleY != 1)
{
plans[i] = AffinePlan.Scale(scaleX, scaleY);
i++;
}
if (angleRad != 0)
{
plans[i] = AffinePlan.Rotate(angleRad);
i++;
}
if (destX != 0 || destY != 0)
{
plans[i] = AffinePlan.Translate(destX, destY);
i++;
}
outputDestImgRect.Clear();
outputDestImgRect.AddMoveTo(0, 0);
outputDestImgRect.AddLineTo(srcW, 0);
outputDestImgRect.AddLineTo(srcW, srcH);
outputDestImgRect.AddLineTo(0, srcH);
outputDestImgRect.AddCloseFigure();
return(Affine.NewMatix(plans));
}
Affine BuildImageBoundsPath(
int srcW, int srcH,
VertexStore drawImageRectPath,
double destX, double destY,
double hotspotOffsetX, double hotSpotOffsetY,
double scaleX, double scaleY,
double angleRad)
{
AffinePlan[] plan = new AffinePlan[4];
int i = 0;
if (hotspotOffsetX != 0.0f || hotSpotOffsetY != 0.0f)
{
plan[i] = AffinePlan.Translate(-hotspotOffsetX, -hotSpotOffsetY);
i++;
}
if (scaleX != 1 || scaleY != 1)
{
plan[i] = AffinePlan.Scale(scaleX, scaleY);
i++;
}
if (angleRad != 0)
{
plan[i] = AffinePlan.Rotate(angleRad);
i++;
}
if (destX != 0 || destY != 0)
{
plan[i] = AffinePlan.Translate(destX, destY);
i++;
}
drawImageRectPath.Clear();
drawImageRectPath.AddMoveTo(0, 0);
drawImageRectPath.AddLineTo(srcW, 0);
drawImageRectPath.AddLineTo(srcW, srcH);
drawImageRectPath.AddLineTo(0, srcH);
drawImageRectPath.AddCloseFigure();
return Affine.NewMatix(plan);
}
Affine BuildImageBoundsPath(
int srcW, int srcH,
VertexStore drawImageRectPath,
double destX, double destY)
{
AffinePlan plan = new AffinePlan();
if (destX != 0 || destY != 0)
{
plan = AffinePlan.Translate(destX, destY);
}
drawImageRectPath.Clear();
drawImageRectPath.AddMoveTo(0, 0);
drawImageRectPath.AddLineTo(srcW, 0);
drawImageRectPath.AddLineTo(srcW, srcH);
drawImageRectPath.AddLineTo(0, srcH);
drawImageRectPath.AddCloseFigure();
return(Affine.NewMatix(plan));
}
Affine BuildImageBoundsPath(IImageReaderWriter sourceImage,
VertexStore drawImageRectPath,
double destX, double destY)
{
AffinePlan plan = new AffinePlan();
if (destX != 0 || destY != 0)
{
plan = AffinePlan.Translate(destX, destY);
}
int srcW = sourceImage.Width;
int srcH = sourceImage.Height;
drawImageRectPath.Clear();
drawImageRectPath.AddMoveTo(0, 0);
drawImageRectPath.AddLineTo(srcW, 0);
drawImageRectPath.AddLineTo(srcW, srcH);
drawImageRectPath.AddLineTo(0, srcH);
drawImageRectPath.AddCloseFigure();
return(Affine.NewMatix(plan));
}
static Affine BuildImageBoundsPath(int srcW, int srcH,
VertexStore drawImageRectPath, AffinePlan[] affPlans)
{
drawImageRectPath.Clear();
drawImageRectPath.AddMoveTo(0, 0);
drawImageRectPath.AddLineTo(srcW, 0);
drawImageRectPath.AddLineTo(srcW, srcH);
drawImageRectPath.AddLineTo(0, srcH);
drawImageRectPath.AddCloseFigure();
return Affine.NewMatix(affPlans);
}
Affine BuildImageBoundsPath(
int srcW, int srcH,
VertexStore drawImageRectPath,
double destX, double destY)
{
AffinePlan plan = new AffinePlan();
if (destX != 0 || destY != 0)
{
plan = AffinePlan.Translate(destX, destY);
}
drawImageRectPath.Clear();
drawImageRectPath.AddMoveTo(0, 0);
drawImageRectPath.AddLineTo(srcW, 0);
drawImageRectPath.AddLineTo(srcW, srcH);
drawImageRectPath.AddLineTo(0, srcH);
drawImageRectPath.AddCloseFigure();
return Affine.NewMatix(plan);
}
public void CreateJoin(VertexStore output,
VertexDistance v0,
VertexDistance v1,
VertexDistance v2,
double len1,
double len2)
{
double dx1 = m_width * (v1.y - v0.y) / len1;
double dy1 = m_width * (v1.x - v0.x) / len1;
double dx2 = m_width * (v2.y - v1.y) / len2;
double dy2 = m_width * (v2.x - v1.x) / len2;
output.Clear();
double cp = AggMath.Cross(v0.x, v0.y, v1.x, v1.y, v2.x, v2.y);
if (cp != 0 && (cp > 0) == (m_width > 0))
{
// Inner join
//---------------
double limit = ((len1 < len2) ? len1 : len2) / m_width_abs;
if (limit < m_inner_miter_limit)
{
limit = m_inner_miter_limit;
}
switch (m_inner_join)
{
default: // inner_bevel
AddVertex(output, v1.x + dx1, v1.y - dy1);
AddVertex(output, v1.x + dx2, v1.y - dy2);
break;
case InnerJoin.Miter:
CreateMiter(output,
v0, v1, v2, dx1, dy1, dx2, dy2,
LineJoin.MiterRevert,
limit, 0);
break;
case InnerJoin.Jag:
case InnerJoin.Round:
cp = (dx1 - dx2) * (dx1 - dx2) + (dy1 - dy2) * (dy1 - dy2);
if (cp < len1 * len1 && cp < len2 * len2)
{
CreateMiter(output,
v0, v1, v2, dx1, dy1, dx2, dy2,
LineJoin.MiterRevert,
limit, 0);
}
else
{
if (m_inner_join == InnerJoin.Jag)
{
AddVertex(output, v1.x + dx1, v1.y - dy1);
AddVertex(output, v1.x, v1.y);
AddVertex(output, v1.x + dx2, v1.y - dy2);
}
else
{
AddVertex(output, v1.x + dx1, v1.y - dy1);
AddVertex(output, v1.x, v1.y);
CreateArc(output, v1.x, v1.y, dx2, -dy2, dx1, -dy1);
AddVertex(output, v1.x, v1.y);
AddVertex(output, v1.x + dx2, v1.y - dy2);
}
}
break;
}
}
else
{
// Outer join
//---------------
// Calculate the distance between v1 and
// the central point of the bevel line segment
//---------------
double dx = (dx1 + dx2) / 2;
double dy = (dy1 + dy2) / 2;
double dbevel = Math.Sqrt(dx * dx + dy * dy);
if (m_line_join == LineJoin.Round || m_line_join == LineJoin.Bevel)
{
// This is an optimization that reduces the number of points
// in cases of almost collinear segments. If there's no
// visible difference between bevel and miter joins we'd rather
// use miter join because it adds only one point instead of two.
//
// Here we calculate the middle point between the bevel points
// and then, the distance between v1 and this middle point.
// At outer joins this distance always less than stroke width,
// because it's actually the height of an isosceles triangle of
// v1 and its two bevel points. If the difference between this
// width and this value is small (no visible bevel) we can
// add just one point.
//
// The constant in the expression makes the result approximately
// the same as in round joins and caps. You can safely comment
// out this entire "if".
//-------------------
if (m_approx_scale * (m_width_abs - dbevel) < m_width_eps)
{
if (AggMath.CalcIntersect(v0.x + dx1, v0.y - dy1,
v1.x + dx1, v1.y - dy1,
v1.x + dx2, v1.y - dy2,
v2.x + dx2, v2.y - dy2,
out dx, out dy))
{
AddVertex(output, dx, dy);
}
else
{
AddVertex(output, v1.x + dx1, v1.y - dy1);
}
return;
}
}
switch (m_line_join)
{
case LineJoin.Miter:
case LineJoin.MiterRevert:
case LineJoin.MiterRound:
CreateMiter(output,
v0, v1, v2, dx1, dy1, dx2, dy2,
m_line_join,
m_miter_limit,
dbevel);
break;
case LineJoin.Round:
CreateArc(output, v1.x, v1.y, dx1, -dy1, dx2, -dy2);
break;
default: // Bevel join
AddVertex(output, v1.x + dx1, v1.y - dy1);
AddVertex(output, v1.x + dx2, v1.y - dy2);
break;
}
}
}
public void CreateCap(VertexStore output, VertexDistance v0, VertexDistance v1, double len)
{
output.Clear();
double dx1 = (v1.y - v0.y) / len;
double dy1 = (v1.x - v0.x) / len;
double dx2 = 0;
double dy2 = 0;
dx1 *= m_width;
dy1 *= m_width;
if (m_line_cap != LineCap.Round)
{
if (m_line_cap == LineCap.Square)
{
dx2 = dy1 * m_width_sign;
dy2 = dx1 * m_width_sign;
}
AddVertex(output, v0.x - dx1 - dx2, v0.y + dy1 - dy2);
AddVertex(output, v0.x + dx1 - dx2, v0.y - dy1 - dy2);
}
else
{
double da = Math.Acos(m_width_abs / (m_width_abs + 0.125 / m_approx_scale)) * 2;
double a1;
int i;
int n = (int)(Math.PI / da);
da = Math.PI / (n + 1);
AddVertex(output, v0.x - dx1, v0.y + dy1);
if (m_width_sign > 0)
{
a1 = Math.Atan2(dy1, -dx1);
a1 += da;
for (i = 0; i < n; i++)
{
AddVertex(output, v0.x + Math.Cos(a1) * m_width,
v0.y + Math.Sin(a1) * m_width);
a1 += da;
}
}
else
{
a1 = Math.Atan2(-dy1, dx1);
a1 -= da;
for (i = 0; i < n; i++)
{
AddVertex(output, v0.x + Math.Cos(a1) * m_width,
v0.y + Math.Sin(a1) * m_width);
a1 -= da;
}
}
AddVertex(output, v0.x + dx1, v0.y - dy1);
}
}
public void Release(ref VertexStore vxs)
{
vxs.Clear();
_stack.Push(vxs);
vxs = null;
}
public void Release(ref VertexStore vxs)
{
vxs.Clear();
_stack.Push(vxs);
vxs = null;
}
void ReleaseVxs(VertexStore vxs)
{
this.myTmpImgRectVxs = vxs;
vxs.Clear();
}
public void CreateJoin(VertexStore output,
VertexDistance v0,
VertexDistance v1,
VertexDistance v2,
double len1,
double len2)
{
double dx1 = m_width * (v1.y - v0.y) / len1;
double dy1 = m_width * (v1.x - v0.x) / len1;
double dx2 = m_width * (v2.y - v1.y) / len2;
double dy2 = m_width * (v2.x - v1.x) / len2;
output.Clear();
double cp = AggMath.Cross(v0.x, v0.y, v1.x, v1.y, v2.x, v2.y);
if (cp != 0 && (cp > 0) == (m_width > 0))
{
// Inner join
//---------------
double limit = ((len1 < len2) ? len1 : len2) / m_width_abs;
if (limit < m_inner_miter_limit)
{
limit = m_inner_miter_limit;
}
switch (m_inner_join)
{
default: // inner_bevel
AddVertex(output, v1.x + dx1, v1.y - dy1);
AddVertex(output, v1.x + dx2, v1.y - dy2);
break;
case InnerJoin.Miter:
CreateMiter(output,
v0, v1, v2, dx1, dy1, dx2, dy2,
LineJoin.MiterRevert,
limit, 0);
break;
case InnerJoin.Jag:
case InnerJoin.Round:
cp = (dx1 - dx2) * (dx1 - dx2) + (dy1 - dy2) * (dy1 - dy2);
if (cp < len1 * len1 && cp < len2 * len2)
{
CreateMiter(output,
v0, v1, v2, dx1, dy1, dx2, dy2,
LineJoin.MiterRevert,
limit, 0);
}
else
{
if (m_inner_join == InnerJoin.Jag)
{
AddVertex(output, v1.x + dx1, v1.y - dy1);
AddVertex(output, v1.x, v1.y);
AddVertex(output, v1.x + dx2, v1.y - dy2);
}
else
{
AddVertex(output, v1.x + dx1, v1.y - dy1);
AddVertex(output, v1.x, v1.y);
CreateArc(output, v1.x, v1.y, dx2, -dy2, dx1, -dy1);
AddVertex(output, v1.x, v1.y);
AddVertex(output, v1.x + dx2, v1.y - dy2);
}
}
break;
}
}
else
{
// Outer join
//---------------
// Calculate the distance between v1 and
// the central point of the bevel line segment
//---------------
double dx = (dx1 + dx2) / 2;
double dy = (dy1 + dy2) / 2;
double dbevel = Math.Sqrt(dx * dx + dy * dy);
if (m_line_join == LineJoin.Round || m_line_join == LineJoin.Bevel)
{
// This is an optimization that reduces the number of points
// in cases of almost collinear segments. If there's no
// visible difference between bevel and miter joins we'd rather
// use miter join because it adds only one point instead of two.
//
// Here we calculate the middle point between the bevel points
// and then, the distance between v1 and this middle point.
// At outer joins this distance always less than stroke width,
// because it's actually the height of an isosceles triangle of
// v1 and its two bevel points. If the difference between this
// width and this value is small (no visible bevel) we can
// add just one point.
//
// The constant in the expression makes the result approximately
// the same as in round joins and caps. You can safely comment
// out this entire "if".
//-------------------
if (m_approx_scale * (m_width_abs - dbevel) < m_width_eps)
{
if (AggMath.CalcIntersect(v0.x + dx1, v0.y - dy1,
v1.x + dx1, v1.y - dy1,
v1.x + dx2, v1.y - dy2,
v2.x + dx2, v2.y - dy2,
out dx, out dy))
{
AddVertex(output, dx, dy);
}
else
{
AddVertex(output, v1.x + dx1, v1.y - dy1);
}
return;
}
}
switch (m_line_join)
{
case LineJoin.Miter:
case LineJoin.MiterRevert:
case LineJoin.MiterRound:
CreateMiter(output,
v0, v1, v2, dx1, dy1, dx2, dy2,
m_line_join,
m_miter_limit,
dbevel);
break;
case LineJoin.Round:
CreateArc(output, v1.x, v1.y, dx1, -dy1, dx2, -dy2);
break;
default: // Bevel join
AddVertex(output, v1.x + dx1, v1.y - dy1);
AddVertex(output, v1.x + dx2, v1.y - dy2);
break;
}
}
}
public void Render(Painter p)
{
//
if (HasBitmapSnapshot)
{
p.DrawImage(_backimg, X, Y);
return;
}
PixelFarm.Agg.Transform.Affine currentTx = null;
var renderState = new TempRenderState();
renderState.strokeColor = p.StrokeColor;
renderState.strokeWidth = (float)p.StrokeWidth;
renderState.fillColor = p.FillColor;
renderState.affineTx = currentTx;
//------------------
VertexStore tempVxs = p.GetTempVxsStore();
int j = _vxList.Length;
for (int i = 0; i < j; ++i)
{
SvgPart vx = _vxList[i];
switch (vx.Kind)
{
case SvgRenderVxKind.BeginGroup:
{
//1. save current state before enter new state
p.StackPushUserObject(renderState);
//2. enter new px context
if (vx.HasFillColor)
{
p.FillColor = renderState.fillColor = vx.FillColor;
}
if (vx.HasStrokeColor)
{
p.StrokeColor = renderState.strokeColor = vx.StrokeColor;
}
if (vx.HasStrokeWidth)
{
p.StrokeWidth = renderState.strokeWidth = vx.StrokeWidth;
}
if (vx.AffineTx != null)
{
//apply this to current tx
if (currentTx != null)
{
currentTx = currentTx * vx.AffineTx;
}
else
{
currentTx = vx.AffineTx;
}
renderState.affineTx = currentTx;
}
}
break;
case SvgRenderVxKind.EndGroup:
{
//restore to prev state
renderState = (TempRenderState)p.StackPopUserObject();
p.FillColor = renderState.fillColor;
p.StrokeColor = renderState.strokeColor;
p.StrokeWidth = renderState.strokeWidth;
currentTx = renderState.affineTx;
}
break;
case SvgRenderVxKind.Path:
{
VertexStore vxs = vx.GetVxs();
if (vx.HasFillColor)
{
//has specific fill color
if (vx.FillColor.A > 0)
{
if (currentTx == null)
{
p.Fill(vxs, vx.FillColor);
}
else
{
//have some tx
tempVxs.Clear();
currentTx.TransformToVxs(vxs, tempVxs);
p.Fill(tempVxs, vx.FillColor);
}
}
}
else
{
if (p.FillColor.A > 0)
{
if (currentTx == null)
{
p.Fill(vxs);
}
else
{
//have some tx
tempVxs.Clear();
currentTx.TransformToVxs(vxs, tempVxs);
p.Fill(tempVxs);
}
}
}
if (p.StrokeWidth > 0)
{
//check if we have a stroke version of this render vx
//if not then request a new one
if (vx.HasStrokeColor)
{
//has specific stroke color
p.StrokeWidth = vx.StrokeWidth;
VertexStore strokeVxs = GetStrokeVxsOrCreateNew(vx, p, (float)p.StrokeWidth);
if (currentTx == null)
{
p.Fill(strokeVxs, vx.StrokeColor);
}
else
{
//have some tx
tempVxs.Clear();
currentTx.TransformToVxs(strokeVxs, tempVxs);
p.Fill(tempVxs, vx.StrokeColor);
}
}
else if (p.StrokeColor.A > 0)
{
VertexStore strokeVxs = GetStrokeVxsOrCreateNew(vx, p, (float)p.StrokeWidth);
if (currentTx == null)
{
p.Fill(strokeVxs, p.StrokeColor);
}
else
{
tempVxs.Clear();
currentTx.TransformToVxs(strokeVxs, tempVxs);
p.Fill(tempVxs, p.StrokeColor);
}
}
else
{
}
}
else
{
if (vx.HasStrokeColor)
{
VertexStore strokeVxs = GetStrokeVxsOrCreateNew(vx, p, (float)p.StrokeWidth);
p.Fill(strokeVxs);
}
else if (p.StrokeColor.A > 0)
{
VertexStore strokeVxs = GetStrokeVxsOrCreateNew(vx, p, (float)p.StrokeWidth);
p.Fill(strokeVxs, p.StrokeColor);
}
}
}
break;
}
}
p.ReleaseTempVxsStore(tempVxs);
}