@Override
public void restoreTransformTo(Object geometry) {
Point2D.Double p = (Point2D.Double) geometry;
origin.x = p.x;
origin.y = p.y;
}
public static List<BezierPath> fromPathData(String str) throws IOException {
LinkedList<BezierPath> paths = new LinkedList<BezierPath>();
BezierPath path = null;
Point2D.Double p = new Point2D.Double();
Point2D.Double c1 = new Point2D.Double();
Point2D.Double c2 = new Point2D.Double();
StreamTokenizer tt = new StreamTokenizer(new StringReader(str));
tt.resetSyntax();
tt.parseNumbers();
tt.whitespaceChars(0, ' ');
tt.whitespaceChars(',', ',');
char nextCommand = 'M';
char command = 'M';
while (tt.nextToken() != StreamTokenizer.TT_EOF) {
if (tt.ttype > 0) {
command = (char) tt.ttype;
} else {
command = nextCommand;
tt.pushBack();
}
BezierPath.Node node;
switch (command) {
// moveto
case 'M':
if (path != null) {
paths.add(path);
}
path = new BezierPath();
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y = tt.nval;
path.moveTo(p.x, p.y);
nextCommand = 'L';
break;
case 'm':
if (path != null) {
paths.add(path);
}
path = new BezierPath();
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x += tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y += tt.nval;
path.moveTo(p.x, p.y);
nextCommand = 'l';
// close path
break;
case 'Z':
case 'z':
p.x = path.get(0).x[0];
p.y = path.get(0).y[0];
path.setClosed(true);
// lineto
break;
case 'L':
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y = tt.nval;
path.lineTo(p.x, p.y);
nextCommand = 'L';
break;
case 'l':
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x += tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y += tt.nval;
path.lineTo(p.x, p.y);
nextCommand = 'l';
break;
case 'H':
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x = tt.nval;
path.lineTo(p.x, p.y);
nextCommand = 'H';
break;
case 'h':
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x += tt.nval;
path.lineTo(p.x, p.y);
nextCommand = 'h';
break;
case 'V':
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y = tt.nval;
path.lineTo(p.x, p.y);
nextCommand = 'V';
break;
case 'v':
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y += tt.nval;
path.lineTo(p.x, p.y);
nextCommand = 'v';
// curveto
break;
case 'C':
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c1.x = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c1.y = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c2.x = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c2.y = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y = tt.nval;
path.curveTo(c1.x, c1.y, c2.x, c2.y, p.x, p.y);
nextCommand = 'C';
break;
case 'c':
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c1.x = p.x + tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c1.y = p.y + tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c2.x = p.x + tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c2.y = p.y + tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x += tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y += tt.nval;
path.curveTo(c1.x, c1.y, c2.x, c2.y, p.x, p.y);
nextCommand = 'c';
break;
case 'S':
node = path.get(path.size() - 1);
c1.x = node.x[0] * 2d - node.x[1];
c1.y = node.y[0] * 2d - node.y[1];
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c2.x = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c2.y = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y = tt.nval;
path.curveTo(c1.x, c1.y, c2.x, c2.y, p.x, p.y);
nextCommand = 'S';
break;
case 's':
node = path.get(path.size() - 1);
c1.x = node.x[0] * 2d - node.x[1];
c1.y = node.y[0] * 2d - node.y[1];
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c2.x = p.x + tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c2.y = p.y + tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x += tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y += tt.nval;
path.curveTo(c1.x, c1.y, c2.x, c2.y, p.x, p.y);
nextCommand = 's';
// quadto
break;
case 'Q':
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c1.x = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c1.y = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y = tt.nval;
path.quadTo(c1.x, c1.y, p.x, p.y);
nextCommand = 'Q';
break;
case 'q':
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c1.x = p.x + tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
c1.y = p.y + tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x += tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y += tt.nval;
path.quadTo(c1.x, c1.y, p.x, p.y);
nextCommand = 'q';
break;
case 'T':
node = path.get(path.size() - 1);
c1.x = node.x[0] * 2d - node.x[1];
c1.y = node.y[0] * 2d - node.y[1];
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x = tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y = tt.nval;
path.quadTo(c1.x, c1.y, p.x, p.y);
nextCommand = 'T';
break;
case 't':
node = path.get(path.size() - 1);
c1.x = node.x[0] * 2d - node.x[1];
c1.y = node.y[0] * 2d - node.y[1];
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.x += tt.nval;
if (tt.nextToken() != StreamTokenizer.TT_NUMBER) throw new IOException("Number expected");
p.y += tt.nval;
path.quadTo(c1.x, c1.y, p.x, p.y);
nextCommand = 's';
break;
default:
throw new IOException("Illegal command: " + command);
}
}
if (path != null) {
paths.add(path);
}
return paths;
}