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public GetVertexSnapIter ( ) : |
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| Результат | ||
//-----------------------------------------------------bounding_rect_single
//template<class VertexSource, class CoordT>
static bool GetBoundingRect(
VertexStoreSnap vs,
out int x1, out int y1,
out int x2, out int y2)
{
double x_d = 0;
double y_d = 0;
int x = 0;
int y = 0;
bool first = true;
x1 = 1;
y1 = 1;
x2 = 0;
y2 = 0;
var vsnapIter = vs.GetVertexSnapIter();
VertexCmd PathAndFlags;
while (!VertexHelper.IsEmpty(PathAndFlags = vsnapIter.GetNextVertex(out x_d, out y_d)))
{
x = (int)x_d;
y = (int)y_d;
if (VertexHelper.IsVertextCommand(PathAndFlags))
{
if (first)
{
x1 = x;
y1 = y;
x2 = x;
y2 = y;
first = false;
}
else
{
if (x < x1)
{
x1 = x;
}
if (y < y1)
{
y1 = y;
}
if (x > x2)
{
x2 = x;
}
if (y > y2)
{
y2 = y;
}
}
}
}
return(x1 <= x2 && y1 <= y2);
}
/// <summary>
/// we do NOT store vxs, return original outputVxs
/// </summary>
/// <param name="src"></param>
/// <param name="outputVxs"></param>
/// <returns></returns>
public static VertexStore TransformToVxs(this Affine aff, VertexStoreSnap src, VertexStore outputVxs)
{
var snapIter = src.GetVertexSnapIter();
VertexCmd cmd;
double x, y;
while ((cmd = snapIter.GetNextVertex(out x, out y)) != VertexCmd.NoMore)
{
aff.Transform(ref x, ref y);
outputVxs.AddVertex(x, y, cmd);
}
return(outputVxs);
}
public static VertexStore TransformToVxs(this Perspective perspecitveTx, VertexStoreSnap snap, VertexStore vxs)
{
var vsnapIter = snap.GetVertexSnapIter();
double x, y;
VertexCmd cmd;
do
{
cmd = vsnapIter.GetNextVertex(out x, out y);
perspecitveTx.Transform(ref x, ref y);
vxs.AddVertex(x, y, cmd);
} while (!VertexHelper.IsEmpty(cmd));
return(vxs);
}
/// <summary>
/// we do NOT store vxsSnap
/// </summary>
/// <param name="vxsSnap"></param>
/// <returns></returns>
public static SKPath CreateGraphicsPath(VertexStoreSnap vxsSnap)
{
VertexSnapIter vxsIter = vxsSnap.GetVertexSnapIter();
double prevX = 0;
double prevY = 0;
double prevMoveToX = 0;
double prevMoveToY = 0;
//var brush_path = new System.Drawing.Drawing2D.GraphicsPath(FillMode.Winding);//*** winding for overlapped path
var brushPath = new SKPath();
for (;;)
{
double x, y;
VertexCmd cmd = vxsIter.GetNextVertex(out x, out y);
switch (cmd)
{
case PixelFarm.Agg.VertexCmd.MoveTo:
prevMoveToX = prevX = x;
prevMoveToY = prevY = y;
brushPath.MoveTo((float)x, (float)y);
break;
case PixelFarm.Agg.VertexCmd.LineTo:
//brushPath.AddLine((float)prevX, (float)prevY, (float)x, (float)y);
brushPath.LineTo((float)x, (float)y);
prevX = x;
prevY = y;
break;
case PixelFarm.Agg.VertexCmd.CloseAndEndFigure:
//from current point
//brushPath.AddLine((float)prevX, (float)prevY, (float)prevMoveToX, (float)prevMoveToY);
brushPath.LineTo((float)prevMoveToX, (float)prevMoveToY);
prevX = prevMoveToX;
prevY = prevMoveToY;
//brushPath.CloseFigure();
brushPath.Close();
break;
case PixelFarm.Agg.VertexCmd.EndFigure:
goto EXIT_LOOP;
case PixelFarm.Agg.VertexCmd.Stop:
goto EXIT_LOOP;
default:
throw new NotSupportedException();
}
}
EXIT_LOOP:
return brushPath;
}
public void AddPath(VertexStoreSnap snap)
{
double x = 0;
double y = 0;
if (m_cellAARas.Sorted)
{
Reset();
}
if (snap.VxsHasMoreThanOnePart)
{
//****
//render all parts
VertexStore vxs = snap.GetInternalVxs();
int j = vxs.Count;
for (int i = 0; i < j; ++i)
{
var cmd = vxs.GetVertex(i, out x, out y);
if (cmd != VertexCmd.Stop)
{
AddVertex(cmd, x, y);
}
}
}
else
{
VertexSnapIter snapIter = snap.GetVertexSnapIter();
VertexCmd cmd;
int dbugVertexCount = 0;
while ((cmd = snapIter.GetNextVertex(out x, out y)) != VertexCmd.Stop)
{
dbugVertexCount++;
AddVertex(cmd, x, y);
}
}
}
public void AddPath(VertexStoreSnap snap)
{
double x = 0;
double y = 0;
if (m_cellAARas.Sorted) { Reset(); }
//--------------------------------------------
if (snap.VxsHasMoreThanOnePart)
{
var vxs = snap.GetInternalVxs();
int j = vxs.Count;
for (int i = 0; i < j; ++i)
{
var cmd = vxs.GetVertex(i, out x, out y);
switch (cmd)
{
case VertexCmd.Stop:
{
//stop
} break;
case VertexCmd.MoveTo:
{
MoveTo(x, y);
} break;
case VertexCmd.LineTo:
case VertexCmd.P2c:
case VertexCmd.P3c:
{
//curve must be flatten before using here
LineTo(x, y);
} break;
default:
{
if (VertexHelper.IsClose(cmd))
{
ClosePolygon();
}
} break;
}
}
}
else
{
var snapIter = snap.GetVertexSnapIter();
VertexCmd cmd;
bool stop = false;
while (!stop)
{
cmd = snapIter.GetNextVertex(out x, out y);
switch (cmd)
{
case VertexCmd.Stop:
{
stop = true;
} break;
case VertexCmd.MoveTo:
{
MoveTo(x, y);
} break;
case VertexCmd.LineTo:
case VertexCmd.P2c:
case VertexCmd.P3c:
{
LineTo(x, y);
} break;
default:
{
if (VertexHelper.IsClose(cmd))
{
ClosePolygon();
}
} break;
}
}
}
}
/// <summary>
/// we do NOT store snap ***
/// </summary>
/// <param name="snap"></param>
public void AddPath(VertexStoreSnap snap)
{
//-----------------------------------------------------
//*** we extract vertext command and coord(x,y) from
//the snap but not store the snap inside rasterizer
//-----------------------------------------------------
double x = 0;
double y = 0;
if (m_cellAARas.Sorted)
{
Reset();
}
float offsetOrgX = OffsetOriginX;
float offsetOrgY = OffsetOriginY;
VertexSnapIter snapIter = snap.GetVertexSnapIter();
VertexCmd cmd;
#if DEBUG
int dbugVertexCount = 0;
#endif
if (ExtendX3ForSubPixelRendering)
{
while ((cmd = snapIter.GetNextVertex(out x, out y)) != VertexCmd.NoMore)
{
#if DEBUG
dbugVertexCount++;
#endif
//---------------------------------------------
//NOTE: we scale horizontal 3 times.
//subpixel renderer will shrink it to 1
//---------------------------------------------
AddVertex(cmd, (x + offsetOrgX) * 3, y + offsetOrgY);
}
}
else
{
while ((cmd = snapIter.GetNextVertex(out x, out y)) != VertexCmd.NoMore)
{
#if DEBUG
dbugVertexCount++;
#endif
AddVertex(cmd, x + offsetOrgX, y + offsetOrgY);
}
}
// if (snap.VxsHasMoreThanOnePart)
// {
// //****
// //render all parts
// VertexStore vxs = snap.GetInternalVxs();
// int j = vxs.Count;
// if (UseSubPixelRendering)
// {
// for (int i = 0; i < j; ++i)
// {
// var cmd = vxs.GetVertex(i, out x, out y);
// if (cmd != VertexCmd.Stop)
// {
// //AddVertext 1 of 4
// AddVertex(cmd, (x + offsetOrgX) * 3, y + offsetOrgY);
// }
// }
// }
// else
// {
// for (int i = 0; i < j; ++i)
// {
// var cmd = vxs.GetVertex(i, out x, out y);
// if (cmd != VertexCmd.Stop)
// {
// //AddVertext 2 of 4
// AddVertex(cmd, x + offsetOrgX, y + offsetOrgY);
// }
// }
// }
// }
// else
// {
// VertexSnapIter snapIter = snap.GetVertexSnapIter();
// VertexCmd cmd;
//#if DEBUG
// int dbugVertexCount = 0;
//#endif
// if (UseSubPixelRendering)
// {
// while ((cmd = snapIter.GetNextVertex(out x, out y)) != VertexCmd.Stop)
// {
//#if DEBUG
// dbugVertexCount++;
//#endif
// //AddVertext 3 of 4
// AddVertex(cmd, (x + offsetOrgX) * 3, y + offsetOrgY);
// }
// }
// else
// {
// while ((cmd = snapIter.GetNextVertex(out x, out y)) != VertexCmd.Stop)
// {
//#if DEBUG
// dbugVertexCount++;
//#endif
// //AddVertext 4 of 4
// AddVertex(cmd, x + offsetOrgX, y + offsetOrgY);
// }
// }
// }
}
/// <summary>
/// fill with BitmapBufferExtension lib
/// </summary>
void FillWithBxt(VertexStoreSnap snap)
{
//transate the vxs/snap to command
double x = 0;
double y = 0;
double offsetOrgX = this.OriginX;
double offsetOrgY = this.OriginY;
VertexSnapIter snapIter = snap.GetVertexSnapIter();
VertexCmd cmd;
int latestMoveToX = 0, latestMoveToY = 0;
int latestX = 0, latestY = 0;
bool closed = false;
_reusablePolygonList.Clear();
while ((cmd = snapIter.GetNextVertex(out x, out y)) != VertexCmd.NoMore)
{
x += offsetOrgX;
y += offsetOrgY;
switch (cmd)
{
case VertexCmd.MoveTo:
{
if (_reusablePolygonList.Count > 0)
{
//no drawline
_reusablePolygonList.Clear();
}
closed = false;
_reusablePolygonList.Add(latestMoveToX = latestX = (int)Math.Round(x));
_reusablePolygonList.Add(latestMoveToY = latestY = (int)Math.Round(y));
}
break;
case VertexCmd.LineTo:
case VertexCmd.P2c:
case VertexCmd.P3c:
{
//collect to the polygon
_reusablePolygonList.Add(latestX = (int)Math.Round(x));
_reusablePolygonList.Add(latestY = (int)Math.Round(y));
}
break;
case VertexCmd.Close:
case VertexCmd.CloseAndEndFigure:
{
if (_reusablePolygonList.Count > 0)
{
//flush by draw line
_reusablePolygonList.Add(latestX = latestMoveToX);
_reusablePolygonList.Add(latestY = latestMoveToY);
_bxt.FillPolygon(_reusablePolygonList.ToArray(),
this.fillColor.ToARGB());
}
_reusablePolygonList.Clear();
closed = true;
}
break;
default:
break;
}
}
//---------------
if (!closed && (_reusablePolygonList.Count > 0) &&
(latestX == latestMoveToX) && (latestY == latestMoveToY))
{
//flush by draw line
_reusablePolygonList.Add(latestMoveToX);
_reusablePolygonList.Add(latestMoveToY);
_bxt.FillPolygon(_reusablePolygonList.ToArray(),
this.fillColor.ToARGB());
}
}
/// <summary>
/// we do NOT store snap ***
/// </summary>
/// <param name="snap"></param>
public void AddPath(VertexStoreSnap snap)
{
//-----------------------------------------------------
//*** we extract vertext command and coord(x,y) from
//the snap but not store the snap inside rasterizer
//-----------------------------------------------------
double x = 0;
double y = 0;
if (m_cellAARas.Sorted) { Reset(); }
float offsetOrgX = OffsetOriginX;
float offsetOrgY = OffsetOriginY;
if (snap.VxsHasMoreThanOnePart)
{
//****
//render all parts
VertexStore vxs = snap.GetInternalVxs();
int j = vxs.Count;
for (int i = 0; i < j; ++i)
{
var cmd = vxs.GetVertex(i, out x, out y);
if (cmd != VertexCmd.Stop)
{
AddVertex(cmd, x + offsetOrgX, y + offsetOrgY);
}
}
}
else
{
VertexSnapIter snapIter = snap.GetVertexSnapIter();
VertexCmd cmd;
#if DEBUG
int dbugVertexCount = 0;
#endif
while ((cmd = snapIter.GetNextVertex(out x, out y)) != VertexCmd.Stop)
{
#if DEBUG
dbugVertexCount++;
#endif
AddVertex(cmd, x + offsetOrgX, y + offsetOrgY);
}
}
}
public static InternalGraphicsPath CreateGraphicsPath(VertexStoreSnap vxsSnap)
{
VertexSnapIter vxsIter = vxsSnap.GetVertexSnapIter();
double prevX = 0;
double prevY = 0;
double prevMoveToX = 0;
double prevMoveToY = 0;
//TODO: reivew here
//about how to reuse this list
List<List<float>> allXYlist = new List<List<float>>(); //all include sub path
List<float> xylist = new List<float>();
allXYlist.Add(xylist);
bool isAddToList = true;
for (; ; )
{
double x, y;
VertexCmd cmd = vxsIter.GetNextVertex(out x, out y);
switch (cmd)
{
case PixelFarm.Agg.VertexCmd.MoveTo:
if (!isAddToList)
{
allXYlist.Add(xylist);
isAddToList = true;
}
prevMoveToX = prevX = x;
prevMoveToY = prevY = y;
xylist.Add((float)x);
xylist.Add((float)y);
break;
case PixelFarm.Agg.VertexCmd.LineTo:
xylist.Add((float)x);
xylist.Add((float)y);
prevX = x;
prevY = y;
break;
case PixelFarm.Agg.VertexCmd.CloseAndEndFigure:
//from current point
xylist.Add((float)prevMoveToX);
xylist.Add((float)prevMoveToY);
prevX = prevMoveToX;
prevY = prevMoveToY;
//start the new one
xylist = new List<float>();
isAddToList = false;
break;
case PixelFarm.Agg.VertexCmd.EndFigure:
break;
case PixelFarm.Agg.VertexCmd.Stop:
goto EXIT_LOOP;
default:
throw new System.NotSupportedException();
}
}
EXIT_LOOP:
int j = allXYlist.Count;
List<Figure> figures = new List<Figure>(j);
for (int i = 0; i < j; ++i)
{
figures.Add(new Figure(allXYlist[i].ToArray()));
}
return new InternalGraphicsPath(figures);
}
