public PixelFarm.Drawing.RectangleF GetBounds()
{
if (_hasBounds)
{
return(_bounds);
}
else
{
//calculate here
RectBoundsAccum boundsAccum = new RectBoundsAccum();
boundsAccum.Init(); //Must
for (int i = 0; i < coordXYs.Length;)
{
boundsAccum.Update(coordXYs[i], coordXYs[i + 1]);
i += 2;
}
_hasBounds = true;
return(boundsAccum.ToRectF());
}
}
public FigureContainer Build(PixelFarm.Drawing.VertexStore vxs)
{
//vxs must be flatten vxs.
#if DEBUG
double prevX = 0;
double prevY = 0;
#endif
double prevMoveToX = 0;
double prevMoveToY = 0;
_xylist.Clear();
_figs.Clear();
//TODO: reivew here
//about how to reuse this list
//result...
RectBoundsAccum rectBoundsAccum = new RectBoundsAccum();
rectBoundsAccum.Init();
int index = 0;
VertexCmd cmd;
while ((cmd = vxs.GetVertex(index++, out double x, out double y)) != VertexCmd.NoMore)
{
switch (cmd)
{
case VertexCmd.MoveTo:
#if DEBUG
prevX = x;
prevY = y;
#endif
prevMoveToX = x;
prevMoveToY = y;
_xylist.Add((float)x);
_xylist.Add((float)y);
rectBoundsAccum.Update(x, y);
break;
case VertexCmd.LineTo:
_xylist.Add((float)x);
_xylist.Add((float)y);
#if DEBUG
prevX = x;
prevY = y;
#endif
rectBoundsAccum.Update(x, y);
break;
case VertexCmd.Close:
{
//don't add
//_xylist.Add((float)prevMoveToX);
//_xylist.Add((float)prevMoveToY);
#if DEBUG
prevX = prevMoveToX;
prevY = prevMoveToY;
#endif
//-----------
Figure newfig = new Figure(_xylist.ToArray(), rectBoundsAccum.ToRectF());
newfig.IsClosedFigure = true;
_figs.Add(newfig);
//-----------
_xylist.Clear(); //clear temp list
rectBoundsAccum.Init();
}
break;
case VertexCmd.NoMore:
goto EXIT_LOOP;
default:
throw new System.NotSupportedException();
}
}
EXIT_LOOP:
if (_figs.Count == 0)
{
Figure newfig = new Figure(_xylist.ToArray(), rectBoundsAccum.ToRectF());
newfig.IsClosedFigure = false;
return(new FigureContainer(newfig));
}
//
if (_xylist.Count > 1)
{
#if DEBUG
prevX = prevMoveToX;
prevY = prevMoveToY;
#endif
//
Figure newfig = new Figure(_xylist.ToArray(), rectBoundsAccum.ToRectF());
newfig.IsClosedFigure = true; //?
_figs.Add(newfig);
}
if (_figs.Count == 1)
{
Figure fig = _figs[0];
_figs.Clear();
return(new FigureContainer(fig));
}
else
{
MultiFigures multiFig = new MultiFigures(_figs.ToArray());
_figs.Clear();
return(new FigureContainer(multiFig));
}
}