////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* @inheritDoc
* @param x the x coordinate
* @param y the y coordinate
* @param singlePoint single point
* @return the color Value at given location.
*/
public override int GetColorAt(int x, int y, bool singlePoint)
{
var p = new PointFP(x << SingleFP.DECIMAL_BITS,
y << SingleFP.DECIMAL_BITS);
_nextPt.X = p.X + SingleFP.ONE;
_nextPt.Y = p.Y;
if (_finalMatrix != null)
{
p.Transform(_finalMatrix);
}
var xPos = (p.X >> SingleFP.DECIMAL_BITS) % _width;
var yPos = (p.Y >> SingleFP.DECIMAL_BITS) % _height;
if (xPos < 0)
{
xPos += _width;
}
if (yPos < 0)
{
yPos += _height;
}
return(_textureBuffer[(xPos + yPos * _width)]);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* @inheritDoc
* @return next color.
*/
public override int GetNextColor()
{
var p = new PointFP(_nextPt);
_nextPt.X += SingleFP.ONE;
_nextPt.Y = p.Y;
if (_finalMatrix != null)
{
p.Transform(_finalMatrix);
}
var xPos = (p.X >> SingleFP.DECIMAL_BITS) % _width;
var yPos = (p.Y >> SingleFP.DECIMAL_BITS) % _height;
if (xPos < 0)
{
xPos += _width;
}
if (yPos < 0)
{
yPos += _height;
}
return(_textureBuffer[xPos + yPos * _width]);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param control
* @param point
*/
public virtual void QuadTo(PointFP control, PointFP point)
{
// Compute forward difference values for a quadratic
// curve of type A*(1-t)^2 + 2*B*t*(1-t) + C*t^2
var f = new PointFP(_currPoint);
var tmp = new PointFP((_currPoint.X - control.X * 2 + point.X)
/ SUBDIVIDE2, (_currPoint.Y - control.Y * 2 + point.Y)
/ SUBDIVIDE2);
var ddf = new PointFP(tmp.X * 2, tmp.Y * 2);
var df = new PointFP(tmp.X + (control.X - _currPoint.X) * 2
/ SUBDIVIDE, tmp.Y + (control.Y - _currPoint.Y) * 2 / SUBDIVIDE);
for (int c = 0; c < SUBDIVIDE - 1; c++)
{
f.Add(df);
df.Add(ddf);
LineTo(f);
}
// We specify the last point manually since
// we obtain rounding errors during the
// forward difference computation.
LineTo(point);
}
private void ExtendIfNeeded(int cmdsAddNum, int pntsAddNum)
{
if (_cmds == null)
{
_cmds = new int[BLOCKSIZE];
}
if (_pnts == null)
{
_pnts = new PointFP[BLOCKSIZE];
}
if (_cmdsSize + cmdsAddNum > _cmds.Length)
{
var newdata = new int[_cmds.Length + (cmdsAddNum > BLOCKSIZE
? cmdsAddNum : BLOCKSIZE)];
if (_cmdsSize > 0)
{
Array.Copy(_cmds, 0, newdata, 0, _cmdsSize);
}
_cmds = newdata;
}
if (_pntsSize + pntsAddNum > _pnts.Length)
{
var newdata = new PointFP[_pnts.Length +
(pntsAddNum > BLOCKSIZE ? pntsAddNum : BLOCKSIZE)];
if (_pntsSize > 0)
{
Array.Copy(_pnts, 0, newdata, 0, _pntsSize);
}
_pnts = newdata;
}
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
public virtual void CurveTo(PointFP control1, PointFP control2, PointFP point)
{
var tmp1 = new PointFP(_currPoint.X - control1.X * 2 + control2.X,
_currPoint.Y - control1.Y * 2 + control2.Y);
var tmp2 = new PointFP((control1.X - control2.X) * 3 - _currPoint.X
+ point.X, (control1.Y - control2.Y) * 3 - _currPoint.Y + point.Y);
var f = new PointFP(_currPoint);
var df = new PointFP((control1.X - _currPoint.X) * 3 / SUBDIVIDE
+ tmp1.X * 3 / SUBDIVIDE2 + tmp2.X / SUBDIVIDE3,
(control1.Y - _currPoint.Y) * 3 / SUBDIVIDE + tmp1.Y * 3
/ SUBDIVIDE2 + tmp2.Y / SUBDIVIDE3);
var ddf = new PointFP(tmp1.X * 6 / SUBDIVIDE2 + tmp2.X * 6
/ SUBDIVIDE3, tmp1.Y * 6 / SUBDIVIDE2 + tmp2.Y * 6 / SUBDIVIDE3);
var dddf = new PointFP(tmp2.X * 6
/ SUBDIVIDE3, tmp2.Y * 6 / SUBDIVIDE3);
for (var c = 0; c < SUBDIVIDE - 1; c++)
{
f.Add(df);
df.Add(ddf);
ddf.Add(dddf);
LineTo(f);
}
LineTo(point);
}
public static Point[] ToPointArray(PointFP[] pnts)
{
Point[] result = new Point[pnts.Length];
for (int i = 0; i < pnts.Length; i++)
{
result[i] = ToPoint(pnts[i]);
}
return result;
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param point
*/
public virtual void MoveTo(PointFP point)
{
if (!_started)
{
_startPoint.Reset(point);
_started = true;
}
_currPoint.Reset(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param point
*/
public override void MoveTo(PointFP point)
{
_transformedPoint = new PointFP(point);
if (_transformMatrix != null)
{
_transformedPoint.Transform(_transformMatrix);
}
base.MoveTo(point);
}
private static PointFP CalcControlPoint(PointFP p1, PointFP p2,
PointFP p3, int ffFactor)
{
var ps = new PointFP(p2.X + MathFP.Mul(p2.X - p1.X, ffFactor),
p2.Y + MathFP.Mul(p2.Y - p1.Y, ffFactor));
return(new LineFP((new LineFP(p2, ps)).GetCenter(),
(new LineFP(p2, p3)).GetCenter()).GetCenter());
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* @inheritDoc
* @param x the x coordinate
* @param y the y coordinate
* @param singlePoint
* @return the color at given position.
*/
public override int GetColorAt(int x, int y, bool singlePoint)
{
var p = new PointFP(x << SingleFP.DECIMAL_BITS,
y << SingleFP.DECIMAL_BITS);
PointFP p1 = null;
if (!singlePoint)
{
p1 = new PointFP(p.X + SingleFP.ONE, p.Y);
}
if (_finalMatrix != null)
{
p.Transform(_finalMatrix);
if (!singlePoint)
{
p1.Transform(_finalMatrix);
}
}
//int width = bounds.getWidth();
//int height = bounds.getHeight();
var v = p.X + _ffLength / 2;
_ffCurrpos = (int)(((long)v << RATIO_BITS + SingleFP.DECIMAL_BITS)
/ _ffLength);
if (!singlePoint)
{
_ffDeltapos = (int)(((long)(p1.X - p.X)
<< RATIO_BITS + SingleFP.DECIMAL_BITS) / _ffLength);
}
int pos = _ffCurrpos >> SingleFP.DECIMAL_BITS;
pos -= 512;
//pos >>= Brush.XY_MAX_BITS - RATIO_BITS;
switch (FillMode)
{
case REFLECT:
pos = pos % (RATIO_MAX * 2);
pos = pos < 0 ? pos + RATIO_MAX * 2 : pos;
pos = (pos < RATIO_MAX) ? pos : RATIO_MAX * 2 - pos;
break;
case REPEAT:
pos = pos % RATIO_MAX;
pos = pos < 0 ? pos + RATIO_MAX : pos;
break;
case NO_CYCLE:
pos = pos < 0 ? 0 : (pos > RATIO_MAX ? RATIO_MAX : pos);
break;
}
return(_gradientColors[pos]);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Create a smooth curve from given parameters.
* @param points
* @param offset
* @param numberOfSegments
* @param ff_factor
* @param closed
* @return
*/
public static GraphicsPathFP CreateSmoothCurves(PointFP[] points,
int offset, int numberOfSegments, int ffFactor, bool closed)
{
var len = points.Length;
var path = new GraphicsPathFP();
if (numberOfSegments < 1 ||
numberOfSegments > points.Length - 1 ||
offset < 0 ||
offset + numberOfSegments > len - 1)
{
return(path);
}
var pc1S = new PointFP[points.Length];
var pc2S = new PointFP[points.Length];
if (!closed)
{
pc1S[0] = points[0];
pc2S[len - 1] = points[len - 1];
}
else
{
pc1S[0] = CalcControlPoint(points[len - 1],
points[0], points[1], ffFactor);
pc2S[0] = CalcControlPoint(points[1], points[0],
points[len - 1], ffFactor);
pc1S[len - 1] = CalcControlPoint(points[len - 2], points[len - 1],
points[0], ffFactor);
pc2S[len - 1] = CalcControlPoint(points[0], points[len - 1],
points[len - 2], ffFactor);
}
for (var i = 1; i < len - 1; i++)
{
pc1S[i] = CalcControlPoint(points[i - 1], points[i],
points[i + 1], ffFactor);
pc2S[i] = CalcControlPoint(points[i + 1], points[i],
points[i - 1], ffFactor);
}
path.AddMoveTo(points[offset]);
for (var i = 0; i < numberOfSegments; i++)
{
path.AddCurveTo(pc1S[offset + i], pc2S[offset + i + 1],
points[offset + i + 1]);
}
if (closed)
{
path.AddCurveTo(pc1S[len - 1], pc2S[0], points[0]);
path.AddClose();
}
return(path);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Add curve to.
* @param control
* @param point
*/
public void AddQuadTo(PointFP control, PointFP point)
{
if (control.Equals(point))
{
AddLineTo(point);
return;
}
ExtendIfNeeded(1, 2);
_cmds[_cmdsSize++] = CMD_QCURVETO;
_pnts[_pntsSize++] = new PointFP(control);
_pnts[_pntsSize++] = new PointFP(point);
}
static GraphicsPathFP()
{
ONE = SingleFP.ONE;
ROUNDCAP[0] = new PointFP(25080, 60547);
ROUNDCAP[1] = new PointFP(46341, 46341);
ROUNDCAP[2] = new PointFP(60547, 25080);
ROUNDCAP[3] = new PointFP(ONE, 0);
ROUNDCAP[4] = new PointFP(60547, -25080);
ROUNDCAP[5] = new PointFP(46341, -46341);
ROUNDCAP[6] = new PointFP(25080, -60547);
SQUARECAP[0] = new PointFP(ONE, ONE);
SQUARECAP[1] = new PointFP(ONE, -ONE);
}
static GraphicsPathFP()
{
ONE = SingleFP.ONE;
ROUNDCAP[0] = new PointFP(25080, 60547);
ROUNDCAP[1] = new PointFP(46341, 46341);
ROUNDCAP[2] = new PointFP(60547, 25080);
ROUNDCAP[3] = new PointFP(ONE, 0);
ROUNDCAP[4] = new PointFP(60547, -25080);
ROUNDCAP[5] = new PointFP(46341, -46341);
ROUNDCAP[6] = new PointFP(25080, -60547);
SQUARECAP[0] = new PointFP(ONE, ONE);
SQUARECAP[1] = new PointFP(ONE, -ONE);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Add a path to this path.
* @param path
*/
public void AddPath(GraphicsPathFP path)
{
if (path._cmdsSize > 0)
{
ExtendIfNeeded(path._cmdsSize, path._pntsSize);
Array.Copy(path._cmds, 0, _cmds, _cmdsSize, path._cmdsSize);
for (int i = 0; i < path._pntsSize; i++)
{
_pnts[i + _pntsSize] = new PointFP(path._pnts[i]);
}
_cmdsSize += path._cmdsSize;
_pntsSize += path._pntsSize;
}
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Copy constructor.
* @param from the one to be copied.
*/
public GraphicsPathFP(GraphicsPathFP from)
{
_cmdsSize = from._cmdsSize;
_pntsSize = from._pntsSize;
if (_cmdsSize > 0)
{
_cmds = new int[_cmdsSize];
_pnts = new PointFP[_pntsSize];
Array.Copy(from._cmds, 0, _cmds, 0, _cmdsSize);
for (int i = 0; i < _pntsSize; i++)
{
_pnts[i] = new PointFP(from._pnts[i]);
}
}
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Constructor.
* @param from the path which need to be dashed.
* @param dashArray the dash array.
* @param offset from where the dash starts.
*/
public GraphicsPathDasherFP(GraphicsPathFP from, int[] dashArray, int offset)
{
_fromPath = new GraphicsPathFP(from);
var arrayLength = dashArray.Length - offset;
if (arrayLength > 1)
{
_pnts = new PointFP[BLOCKSIZE];
_cmds = new int[BLOCKSIZE];
_dashArray = new int[dashArray.Length - offset];
Array.Copy(dashArray, offset,
_dashArray, 0, dashArray.Length);
VisitPath(this);
}
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 09NOV2008 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param point
*/
public override void LineTo(PointFP point)
{
var pntTemp = new PointFP(point);
_ffXmin = MathFP.Min(_ffXmin, CurrentPoint().X);
_ffXmax = MathFP.Max(_ffXmax, point.X);
_ffYmin = MathFP.Min(_ffYmin, CurrentPoint().Y);
_ffYmax = MathFP.Max(_ffYmax, point.Y);
if (_transformMatrix != null)
{
pntTemp.Transform(_transformMatrix);
}
Scanline(_transformedPoint.X, _transformedPoint.Y, pntTemp.X, pntTemp.Y);
_transformedPoint = pntTemp;
base.LineTo(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param control1
* @param control2
* @param point
*/
public void AddCurveTo(PointFP control1, PointFP control2, PointFP point)
{
if (_pnts[_pntsSize - 1].Equals(control1))
{
AddQuadTo(control2, point);
return;
}
if (point.Equals(control2))
{
AddQuadTo(control1, point);
return;
}
ExtendIfNeeded(1, 3);
_cmds[_cmdsSize++] = CMD_CCURVETO;
_pnts[_pntsSize++] = new PointFP(control1);
_pnts[_pntsSize++] = new PointFP(control2);
_pnts[_pntsSize++] = new PointFP(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Create the gradient brush.
* @param ff_xmin the top left coordinate.
* @param ff_ymin the top left coordinate.
* @param ff_xmax the bottom right coordinate.
* @param ff_ymax the bottom right coordinate.
* @param ff_angle the angle for this gradient.
* @param type the type of the gradient brush.
*/
public LinearGradientBrushFP(int ffXmin, int ffYmin, int ffXmax, int ffYmax,
int ffAngle)
{
_bounds.Reset(ffXmin, ffYmin,
ffXmax == ffXmin ? ffXmin + 1 : ffXmax,
ffYmax == ffYmin ? ffYmin + 1 : ffYmax);
_matrix = new MatrixFP();
_centerPt.Reset(ffXmin + (ffXmax - ffXmin) / 2,
ffYmin + (ffYmax - ffYmin) / 2);
_matrix.Translate(-_centerPt.X, -_centerPt.Y);
_matrix.Rotate(-ffAngle);
//matrix.translate((ff_xmin + ff_xmax) / 2,(ff_ymin + ff_ymax) / 2);
var ffAng = MathFP.Atan(MathFP.Div(_bounds.GetHeight(),
_bounds.GetWidth() == 0 ? 1 : _bounds.GetWidth()));
var ffLen = PointFP.Distance(_bounds.GetHeight(), _bounds.GetWidth());
_ffLength = MathFP.Mul(ffLen, MathFP.Max(
MathFP.Abs(MathFP.Cos(ffAngle - ffAng)),
MathFP.Abs(MathFP.Cos(ffAngle + ffAng))));
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 09NOV2008 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* @inheritDoc
* @param x the x coordinate
* @param y the y coordinate
* @param singlePoint
* @return the color at given position.
*/
public override int GetColorAt(int x, int y, bool singlePoint)
{
var p = new PointFP(x << SingleFP.DECIMAL_BITS,
y << SingleFP.DECIMAL_BITS);
_nextPt.X = p.X + SingleFP.ONE;
_nextPt.Y = p.Y;
var newCenterPt = new PointFP(_centerPt);
if (_finalMatrix != null)
{
p.Transform(_finalMatrix);
//newCenterPt.transform(finalMatrix);
}
_ffCurrpos = MathFP.Div(PointFP.Distance(p.X - newCenterPt.X,
p.Y - newCenterPt.Y), _ffRadius);
var pos = _ffCurrpos >> SingleFP.DECIMAL_BITS - RATIO_BITS;
switch (FillMode)
{
case REFLECT:
pos = pos % (RATIO_MAX * 2);
pos = pos < 0 ? pos + RATIO_MAX * 2 : pos;
pos = (pos < RATIO_MAX) ? pos : RATIO_MAX * 2 - pos;
break;
case REPEAT:
pos = pos % RATIO_MAX;
pos = pos < 0 ? pos + RATIO_MAX : pos;
break;
case NO_CYCLE:
pos = pos < 0 ? 0 : (pos > RATIO_MAX ? RATIO_MAX : pos);
break;
}
return(_gradientColors[pos]);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Add curve to.
* @param control
* @param point
*/
public void AddQuadTo(PointFP control, PointFP point)
{
if (control.Equals(point))
{
AddLineTo(point);
return;
}
ExtendIfNeeded(1, 2);
_cmds[_cmdsSize++] = CMD_QCURVETO;
_pnts[_pntsSize++] = new PointFP(control);
_pnts[_pntsSize++] = new PointFP(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param point
*/
public virtual void MoveTo(PointFP point)
{
if (!_started)
{
_startPoint.Reset(point);
_started = true;
}
_currPoint.Reset(point);
}
public static Point ToPoint(PointFP pnt)
{
return new Point(SingleFP.ToInt(pnt.X), SingleFP.ToInt(pnt.Y));
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* @inheritDoc
* @return next color of the gradient brush.
*/
public override int GetNextColor()
{
var p = new PointFP(_nextPt);
_nextPt.X = p.X + SingleFP.ONE;
_nextPt.Y = p.Y;
var newCenterPt = new PointFP(_centerPt);
if (_finalMatrix != null)
{
p.Transform(_finalMatrix);
//newCenterPt.transform(finalMatrix);
}
_ffCurrpos = MathFP.Div(PointFP.Distance(p.X - newCenterPt.X,
p.Y - newCenterPt.Y), _ffRadius);
var pos = _ffCurrpos >> SingleFP.DECIMAL_BITS - RATIO_BITS;
switch (FillMode)
{
case REFLECT:
pos = pos % (RATIO_MAX * 2);
pos = pos < 0 ? pos + RATIO_MAX * 2 : pos;
pos = (pos < RATIO_MAX) ? pos : RATIO_MAX * 2 - pos;
break;
case REPEAT:
pos = pos % RATIO_MAX;
pos = pos < 0 ? pos + RATIO_MAX : pos;
break;
case NO_CYCLE:
pos = pos < 0 ? 0 : (pos > RATIO_MAX ? RATIO_MAX : pos);
break;
}
return _gradientColors[pos];
}
private void AddMoveTo(PointFP point)
{
_cmds[_cmdsSize++] = CMD_MOVETO;
_pnts[_pntsSize++] = new PointFP(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* @inheritDoc
* @param x the x coordinate
* @param y the y coordinate
* @param singlePoint single point
* @return the color Value at given location.
*/
public override int GetColorAt(int x, int y, bool singlePoint)
{
var p = new PointFP(x << SingleFP.DECIMAL_BITS,
y << SingleFP.DECIMAL_BITS);
_nextPt.X = p.X + SingleFP.ONE;
_nextPt.Y = p.Y;
if (_finalMatrix != null)
{
p.Transform(_finalMatrix);
}
var xPos = (p.X >> SingleFP.DECIMAL_BITS) % _width;
var yPos = (p.Y >> SingleFP.DECIMAL_BITS) % _height;
if (xPos < 0) xPos += _width;
if (yPos < 0) yPos += _height;
return _textureBuffer[(xPos + yPos * _width)];
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Create a polygon path.
* @param points
* @return
*/
public static GraphicsPathFP CreatePolygon(PointFP[] points)
{
var path = CreatePolyline(points);
if (points.Length > 0)
{
path.AddClose();
}
return path;
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
public virtual void CurveTo(PointFP control1, PointFP control2, PointFP point)
{
var tmp1 = new PointFP(_currPoint.X - control1.X * 2 + control2.X,
_currPoint.Y - control1.Y * 2 + control2.Y);
var tmp2 = new PointFP((control1.X - control2.X) * 3 - _currPoint.X
+ point.X, (control1.Y - control2.Y) * 3 - _currPoint.Y + point.Y);
var f = new PointFP(_currPoint);
var df = new PointFP((control1.X - _currPoint.X) * 3 / SUBDIVIDE
+ tmp1.X * 3 / SUBDIVIDE2 + tmp2.X / SUBDIVIDE3,
(control1.Y - _currPoint.Y) * 3 / SUBDIVIDE + tmp1.Y * 3
/ SUBDIVIDE2 + tmp2.Y / SUBDIVIDE3);
var ddf = new PointFP(tmp1.X * 6 / SUBDIVIDE2 + tmp2.X * 6
/ SUBDIVIDE3, tmp1.Y * 6 / SUBDIVIDE2 + tmp2.Y * 6 / SUBDIVIDE3);
var dddf = new PointFP(tmp2.X * 6
/ SUBDIVIDE3, tmp2.Y * 6 / SUBDIVIDE3);
for (var c = 0; c < SUBDIVIDE - 1; c++)
{
f.Add(df);
df.Add(ddf);
ddf.Add(dddf);
LineTo(f);
}
LineTo(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param control
* @param point
*/
public virtual void QuadTo(PointFP control, PointFP point)
{
// Compute forward difference values for a quadratic
// curve of type A*(1-t)^2 + 2*B*t*(1-t) + C*t^2
var f = new PointFP(_currPoint);
var tmp = new PointFP((_currPoint.X - control.X * 2 + point.X)
/ SUBDIVIDE2, (_currPoint.Y - control.Y * 2 + point.Y)
/ SUBDIVIDE2);
var ddf = new PointFP(tmp.X * 2, tmp.Y * 2);
var df = new PointFP(tmp.X + (control.X - _currPoint.X) * 2
/ SUBDIVIDE, tmp.Y + (control.Y - _currPoint.Y) * 2 / SUBDIVIDE);
for (int c = 0; c < SUBDIVIDE - 1; c++)
{
f.Add(df);
df.Add(ddf);
LineTo(f);
}
// We specify the last point manually since
// we obtain rounding errors during the
// forward difference computation.
LineTo(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Copy constructor.
* @param from the one to be copied.
*/
public GraphicsPathFP(GraphicsPathFP from)
{
_cmdsSize = from._cmdsSize;
_pntsSize = from._pntsSize;
if (_cmdsSize > 0)
{
_cmds = new int[_cmdsSize];
_pnts = new PointFP[_pntsSize];
Array.Copy(from._cmds, 0, _cmds, 0, _cmdsSize);
for (int i = 0; i < _pntsSize; i++)
{
_pnts[i] = new PointFP(from._pnts[i]);
}
}
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* @inheritDoc
* @return next color.
*/
public override int GetNextColor()
{
var p = new PointFP(_nextPt);
_nextPt.X += SingleFP.ONE;
_nextPt.Y = p.Y;
if (_finalMatrix != null)
{
p.Transform(_finalMatrix);
}
var xPos = (p.X >> SingleFP.DECIMAL_BITS) % _width;
var yPos = (p.Y >> SingleFP.DECIMAL_BITS) % _height;
if (xPos < 0) xPos += _width;
if (yPos < 0) yPos += _height;
return _textureBuffer[xPos + yPos * _width];
}
private void AddMoveTo(PointFP point)
{
_cmds[_cmdsSize++] = CMD_MOVETO;
_pnts[_pntsSize++] = new PointFP(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* @inheritDoc
* @param point
*/
public override void MoveTo(PointFP point)
{
base.MoveTo(point);
ExtendIfNeeded(1, 1);
AddMoveTo(point);
}
private static PointFP CalcControlPoint(PointFP p1, PointFP p2,
PointFP p3, int ffFactor)
{
var ps = new PointFP(p2.X + MathFP.Mul(p2.X - p1.X, ffFactor),
p2.Y + MathFP.Mul(p2.Y - p1.Y, ffFactor));
return new LineFP((new LineFP(p2, ps)).GetCenter(),
(new LineFP(p2, p3)).GetCenter()).GetCenter();
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* create a polyline path.
* @param points
* @return
*/
public static GraphicsPathFP CreatePolyline(PointFP[] points)
{
var path = new GraphicsPathFP();
if (points.Length > 0)
{
path.AddMoveTo(points[0]);
for (var i = 1; i < points.Length; i++)
{
path.AddLineTo(points[i]);
}
}
return path;
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param point
*/
public virtual void LineTo(PointFP point)
{
_currPoint.Reset(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Create a smooth curve from given parameters.
* @param points
* @param offset
* @param numberOfSegments
* @param ff_factor
* @param closed
* @return
*/
public static GraphicsPathFP CreateSmoothCurves(PointFP[] points,
int offset, int numberOfSegments, int ffFactor, bool closed)
{
var len = points.Length;
var path = new GraphicsPathFP();
if (numberOfSegments < 1 ||
numberOfSegments > points.Length - 1 ||
offset < 0 ||
offset + numberOfSegments > len - 1)
{
return path;
}
var pc1S = new PointFP[points.Length];
var pc2S = new PointFP[points.Length];
if (!closed)
{
pc1S[0] = points[0];
pc2S[len - 1] = points[len - 1];
}
else
{
pc1S[0] = CalcControlPoint(points[len - 1],
points[0], points[1], ffFactor);
pc2S[0] = CalcControlPoint(points[1], points[0],
points[len - 1], ffFactor);
pc1S[len - 1] = CalcControlPoint(points[len - 2], points[len - 1],
points[0], ffFactor);
pc2S[len - 1] = CalcControlPoint(points[0], points[len - 1],
points[len - 2], ffFactor);
}
for (var i = 1; i < len - 1; i++)
{
pc1S[i] = CalcControlPoint(points[i - 1], points[i],
points[i + 1], ffFactor);
pc2S[i] = CalcControlPoint(points[i + 1], points[i],
points[i - 1], ffFactor);
}
path.AddMoveTo(points[offset]);
for (var i = 0; i < numberOfSegments; i++)
{
path.AddCurveTo(pc1S[offset + i], pc2S[offset + i + 1],
points[offset + i + 1]);
}
if (closed)
{
path.AddCurveTo(pc1S[len - 1], pc2S[0], points[0]);
path.AddClose();
}
return path;
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 11NOV2008 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* @inheritDoc
* @param point
*/
public override void LineTo(PointFP point)
{
base.LineTo(point);
ExtendIfNeeded(1, 1);
AddLineTo(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param control1
* @param control2
* @param point
*/
public void AddCurveTo(PointFP control1, PointFP control2, PointFP point)
{
if (_pnts[_pntsSize - 1].Equals(control1))
{
AddQuadTo(control2, point);
return;
}
if (point.Equals(control2))
{
AddQuadTo(control1, point);
return;
}
ExtendIfNeeded(1, 3);
_cmds[_cmdsSize++] = CMD_CCURVETO;
_pnts[_pntsSize++] = new PointFP(control1);
_pnts[_pntsSize++] = new PointFP(control2);
_pnts[_pntsSize++] = new PointFP(point);
}
private void AddLineTo(PointFP point)
{
_cmds[_cmdsSize++] = CMD_LINETO;
_pnts[_pntsSize++] = new PointFP(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* add move to this path.
* @param point
*/
public void AddMoveTo(PointFP point)
{
ExtendIfNeeded(1, 1);
_cmds[_cmdsSize++] = CMD_MOVETO;
_pnts[_pntsSize++] = new PointFP(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Add line to this path.
* @param point
*/
public void AddLineTo(PointFP point)
{
ExtendIfNeeded(1, 1);
_cmds[_cmdsSize++] = CMD_LINETO;
_pnts[_pntsSize++] = new PointFP(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Add a path to this path.
* @param path
*/
public void AddPath(GraphicsPathFP path)
{
if (path._cmdsSize > 0)
{
ExtendIfNeeded(path._cmdsSize, path._pntsSize);
Array.Copy(path._cmds, 0, _cmds, _cmdsSize, path._cmdsSize);
for (int i = 0; i < path._pntsSize; i++)
{
_pnts[i + _pntsSize] = new PointFP(path._pnts[i]);
}
_cmdsSize += path._cmdsSize;
_pntsSize += path._pntsSize;
}
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 09NOV2008 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param point
*/
public override void LineTo(PointFP point)
{
var pntTemp = new PointFP(point);
_ffXmin = MathFP.Min(_ffXmin, CurrentPoint().X);
_ffXmax = MathFP.Max(_ffXmax, point.X);
_ffYmin = MathFP.Min(_ffYmin, CurrentPoint().Y);
_ffYmax = MathFP.Max(_ffYmax, point.Y);
if (_transformMatrix != null)
{
pntTemp.Transform(_transformMatrix);
}
Scanline(_transformedPoint.X, _transformedPoint.Y, pntTemp.X, pntTemp.Y);
_transformedPoint = pntTemp;
base.LineTo(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param point
*/
public virtual void LineTo(PointFP point)
{
_currPoint.Reset(point);
}
private void AddLineTo(PointFP point)
{
_cmds[_cmdsSize++] = CMD_LINETO;
_pnts[_pntsSize++] = new PointFP(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param point
*/
public override void MoveTo(PointFP point)
{
_transformedPoint = new PointFP(point);
if (_transformMatrix != null)
{
_transformedPoint.Transform(_transformMatrix);
}
base.MoveTo(point);
}
private void ExtendIfNeeded(int cmdsAddNum, int pntsAddNum)
{
if (_cmds == null)
{
_cmds = new int[BLOCKSIZE];
}
if (_pnts == null)
{
_pnts = new PointFP[BLOCKSIZE];
}
if (_cmdsSize + cmdsAddNum > _cmds.Length)
{
var newdata = new int[_cmds.Length + (cmdsAddNum > BLOCKSIZE
? cmdsAddNum : BLOCKSIZE)];
if (_cmdsSize > 0)
{
Array.Copy(_cmds, 0, newdata, 0, _cmdsSize);
}
_cmds = newdata;
}
if (_pntsSize + pntsAddNum > _pnts.Length)
{
var newdata = new PointFP[_pnts.Length +
(pntsAddNum > BLOCKSIZE ? pntsAddNum : BLOCKSIZE)];
if (_pntsSize > 0)
{
Array.Copy(_pnts, 0, newdata, 0, _pntsSize);
}
_pnts = newdata;
}
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* @inheritDoc
* @param x the x coordinate
* @param y the y coordinate
* @param singlePoint
* @return the color at given position.
*/
public override int GetColorAt(int x, int y, bool singlePoint)
{
var p = new PointFP(x << SingleFP.DECIMAL_BITS,
y << SingleFP.DECIMAL_BITS);
PointFP p1 = null;
if (!singlePoint)
{
p1 = new PointFP(p.X + SingleFP.ONE, p.Y);
}
if (_finalMatrix != null)
{
p.Transform(_finalMatrix);
if (!singlePoint)
{
p1.Transform(_finalMatrix);
}
}
//int width = bounds.getWidth();
//int height = bounds.getHeight();
var v = p.X + _ffLength / 2;
_ffCurrpos = (int)(((long)v << RATIO_BITS + SingleFP.DECIMAL_BITS)
/ _ffLength);
if (!singlePoint)
{
_ffDeltapos = (int)(((long)(p1.X - p.X)
<< RATIO_BITS + SingleFP.DECIMAL_BITS) / _ffLength);
}
int pos = _ffCurrpos >> SingleFP.DECIMAL_BITS;
pos -= 512;
//pos >>= Brush.XY_MAX_BITS - RATIO_BITS;
switch (FillMode)
{
case REFLECT:
pos = pos % (RATIO_MAX * 2);
pos = pos < 0 ? pos + RATIO_MAX * 2 : pos;
pos = (pos < RATIO_MAX) ? pos : RATIO_MAX * 2 - pos;
break;
case REPEAT:
pos = pos % RATIO_MAX;
pos = pos < 0 ? pos + RATIO_MAX : pos;
break;
case NO_CYCLE:
pos = pos < 0 ? 0 : (pos > RATIO_MAX ? RATIO_MAX : pos);
break;
}
return _gradientColors[pos];
}
