/**
* Writes the <code>shape</code>, <code>coords</code>, <code>href</code>,
* <code>nohref</code> Attribute for the specified figure and shape.
*
* @return Returns true, if the polygon is inside of the image bounds.
*/
private boolean writePolyAttributes(IXMLElement elem, SVGFigure f, Shape shape) {
AffineTransform t = TRANSFORM.getClone(f);
if (t == null) {
t = drawingTransform;
} else {
t.preConcatenate(drawingTransform);
}
StringBuilder buf = new StringBuilder();
float[] coords = new float[6];
GeneralPath path = new GeneralPath();
for (PathIterator i = shape.getPathIterator(t, 1.5f);
! i.isDone(); i.next()) {
switch (i.currentSegment(coords)) {
case PathIterator.SEG_MOVETO :
if (buf.length() != 0) {
throw new IllegalArgumentException("Illegal shape "+shape);
}
if (buf.length() != 0) {
buf.append(',');
}
buf.append((int) coords[0]);
buf.append(',');
buf.append((int) coords[1]);
path.moveTo(coords[0], coords[1]);
break;
case PathIterator.SEG_LINETO :
if (buf.length() != 0) {
buf.append(',');
}
buf.append((int) coords[0]);
buf.append(',');
buf.append((int) coords[1]);
path.lineTo(coords[0], coords[1]);
break;
case PathIterator.SEG_CLOSE :
path.closePath();
break;
default :
throw new InternalError("Illegal segment type "+i.currentSegment(coords));
}
}
elem.setAttribute("shape", "poly");
elem.setAttribute("coords", buf.toString());
writeHrefAttribute(elem, f);
return path.intersects(new Rectangle2D.Float(bounds.x, bounds.y, bounds.width, bounds.height));
}
/**
* Draw a filled polygon with the given (x[i], y[i]) coordinates.
*
* @param x an array of all the x-coordindates of the polygon
* @param y an array of all the y-coordindates of the polygon
*/
public static void filledPolygon(double[] x, double[] y) {
int N = x.length;
GeneralPath path = new GeneralPath();
path.moveTo((float) scaleX(x[0]), (float) scaleY(y[0]));
for (int i = 0; i < N; i++) path.lineTo((float) scaleX(x[i]), (float) scaleY(y[i]));
path.closePath();
offscreen.fill(path);
draw();
}
/**
* converts this glyph into Shape. It could be called for root's preview mode or by include
* invoke. Pushing either this GlyphFile or DIncludeInvoke should be handled before this.
*/
public Shape toShape(AffineTransform a_trans) {
int ppem = k_defaultPixelSize;
GeneralPath retval = new GeneralPath();
Iterator i = createIterator();
while (i.hasNext()) {
GlyphObject object = (GlyphObject) i.next();
if (object instanceof EContourPoint || object instanceof EHint) {
continue;
} // if
retval.append(object.toShape(a_trans, ppem), false);
} // if
return retval;
}