RectIteratorpublic class RectIterator extends Object implements PathIterator| A utility class to iterate over the path segments of a rectangle
through the PathIterator interface. |
| Fields Summary |
|---|
| double | x | | double | y | | double | w | | double | h | | AffineTransform | affine | | int | index |
| Constructors Summary |
|---|
RectIterator(Rectangle2D r, AffineTransform at)
this.x = r.getX();
this.y = r.getY();
this.w = r.getWidth();
this.h = r.getHeight();
this.affine = at;
if (w < 0 || h < 0) {
index = 6;
}
|
| Methods Summary |
|---|
| public int | currentSegment(float[] coords)Returns the coordinates and type of the current path segment in
the iteration.
The return value is the path segment type:
SEG_MOVETO, SEG_LINETO, SEG_QUADTO, SEG_CUBICTO, or SEG_CLOSE.
A float array of length 6 must be passed in and may be used to
store the coordinates of the point(s).
Each point is stored as a pair of float x,y coordinates.
SEG_MOVETO and SEG_LINETO types will return one point,
SEG_QUADTO will return two points,
SEG_CUBICTO will return 3 points
and SEG_CLOSE will not return any points.
if (isDone()) {
throw new NoSuchElementException("rect iterator out of bounds");
}
if (index == 5) {
return SEG_CLOSE;
}
coords[0] = (float) x;
coords[1] = (float) y;
if (index == 1 || index == 2) {
coords[0] += (float) w;
}
if (index == 2 || index == 3) {
coords[1] += (float) h;
}
if (affine != null) {
affine.transform(coords, 0, coords, 0, 1);
}
return (index == 0 ? SEG_MOVETO : SEG_LINETO);
| | public int | currentSegment(double[] coords)Returns the coordinates and type of the current path segment in
the iteration.
The return value is the path segment type:
SEG_MOVETO, SEG_LINETO, SEG_QUADTO, SEG_CUBICTO, or SEG_CLOSE.
A double array of length 6 must be passed in and may be used to
store the coordinates of the point(s).
Each point is stored as a pair of double x,y coordinates.
SEG_MOVETO and SEG_LINETO types will return one point,
SEG_QUADTO will return two points,
SEG_CUBICTO will return 3 points
and SEG_CLOSE will not return any points.
if (isDone()) {
throw new NoSuchElementException("rect iterator out of bounds");
}
if (index == 5) {
return SEG_CLOSE;
}
coords[0] = x;
coords[1] = y;
if (index == 1 || index == 2) {
coords[0] += w;
}
if (index == 2 || index == 3) {
coords[1] += h;
}
if (affine != null) {
affine.transform(coords, 0, coords, 0, 1);
}
return (index == 0 ? SEG_MOVETO : SEG_LINETO);
| | public int | getWindingRule()Return the winding rule for determining the insideness of the
path.
return WIND_NON_ZERO;
| | public boolean | isDone()Tests if there are more points to read.
return index > 5;
| | public void | next()Moves the iterator to the next segment of the path forwards
along the primary direction of traversal as long as there are
more points in that direction.
index++;
|
|
