/**
* Gets the freeform path
*
* @return the freeform path
*/
public GeneralPath GetPath(){
EscherOptRecord opt = (EscherOptRecord)getEscherChild(_escherContainer, EscherOptRecord.RECORD_ID);
opt.AddEscherProperty(new EscherSimpleProperty(EscherProperties.GEOMETRY__SHAPEPATH, 0x4));
EscherArrayProperty verticesProp = (EscherArrayProperty)getEscherProperty(opt, (short)(EscherProperties.GEOMETRY__VERTICES + 0x4000));
if(verticesProp == null) verticesProp = (EscherArrayProperty)getEscherProperty(opt, EscherProperties.GEOMETRY__VERTICES);
EscherArrayProperty segmentsProp = (EscherArrayProperty)getEscherProperty(opt, (short)(EscherProperties.GEOMETRY__SEGMENTINFO + 0x4000));
if(segmentsProp == null) segmentsProp = (EscherArrayProperty)getEscherProperty(opt, EscherProperties.GEOMETRY__SEGMENTINFO);
//sanity check
if(verticesProp == null) {
logger.log(POILogger.WARN, "Freeform is missing GEOMETRY__VERTICES ");
return null;
}
if(segmentsProp == null) {
logger.log(POILogger.WARN, "Freeform is missing GEOMETRY__SEGMENTINFO ");
return null;
}
GeneralPath path = new GeneralPath();
int numPoints = verticesProp.GetNumberOfElementsInArray();
int numSegments = segmentsProp.GetNumberOfElementsInArray();
for (int i = 0, j = 0; i < numSegments && j < numPoints; i++) {
byte[] elem = segmentsProp.GetElement(i);
if(Arrays.Equals(elem, SEGMENTINFO_MOVETO)){
byte[] p = verticesProp.GetElement(j++);
short x = LittleEndian.Getshort(p, 0);
short y = LittleEndian.Getshort(p, 2);
path.moveTo(
((float)x*POINT_DPI/MASTER_DPI),
((float)y*POINT_DPI/MASTER_DPI));
} else if (Arrays.Equals(elem, SEGMENTINFO_CUBICTO) || Arrays.Equals(elem, SEGMENTINFO_CUBICTO2)){
i++;
byte[] p1 = verticesProp.GetElement(j++);
short x1 = LittleEndian.Getshort(p1, 0);
short y1 = LittleEndian.Getshort(p1, 2);
byte[] p2 = verticesProp.GetElement(j++);
short x2 = LittleEndian.Getshort(p2, 0);
short y2 = LittleEndian.Getshort(p2, 2);
byte[] p3 = verticesProp.GetElement(j++);
short x3 = LittleEndian.Getshort(p3, 0);
short y3 = LittleEndian.Getshort(p3, 2);
path.curveTo(
((float)x1*POINT_DPI/MASTER_DPI), ((float)y1*POINT_DPI/MASTER_DPI),
((float)x2*POINT_DPI/MASTER_DPI), ((float)y2*POINT_DPI/MASTER_DPI),
((float)x3*POINT_DPI/MASTER_DPI), ((float)y3*POINT_DPI/MASTER_DPI));
} else if (Arrays.Equals(elem, SEGMENTINFO_LINETO)){
i++;
byte[] pnext = segmentsProp.GetElement(i);
if(Arrays.Equals(pnext, SEGMENTINFO_ESCAPE)){
if(j + 1 < numPoints){
byte[] p = verticesProp.GetElement(j++);
short x = LittleEndian.Getshort(p, 0);
short y = LittleEndian.Getshort(p, 2);
path.lineTo(
((float)x*POINT_DPI/MASTER_DPI), ((float)y*POINT_DPI/MASTER_DPI));
}
} else if (Arrays.Equals(pnext, SEGMENTINFO_CLOSE)){
path.ClosePath();
}
}
}
return path;
}
