Example usage for java.awt.geom PathIterator PathIterator

Introduction

In this page you can find the example usage for java.awt.geom PathIterator PathIterator.

Prototype

PathIterator

Source Link

Usage

From source file:TransferableScribblePane.java

public PathIterator getPathIterator(final AffineTransform transform) {
    return new PathIterator() {
        int curseg = -1; // current segment

        // Copy the current segment for thread-safety, so we don't
        // mess up of a segment is added while we're iterating
        int numsegs = PolyLine.this.numsegs;

        public boolean isDone() {
            return curseg >= numsegs;
        }/*from  www.ja v  a2 s  .com*/

        public void next() {
            curseg++;
        }

        // Get coordinates and type of current segment as floats
        public int currentSegment(float[] data) {
            int segtype;
            if (curseg == -1) { // First time we're called
                data[0] = x0; // Data is the origin point
                data[1] = y0;
                segtype = SEG_MOVETO; // Returned as a moveto segment
            } else { // Otherwise, the data is a segment endpoint
                data[0] = x0 + coords[curseg * 2];
                data[1] = y0 + coords[curseg * 2 + 1];
                segtype = SEG_LINETO; // Returned as a lineto segment
            }
            // If a tranform was specified, transform point in place
            if (transform != null)
                transform.transform(data, 0, data, 0, 1);
            return segtype;
        }

        // Same as last method, but use doubles
        public int currentSegment(double[] data) {
            int segtype;
            if (curseg == -1) {
                data[0] = x0;
                data[1] = y0;
                segtype = SEG_MOVETO;
            } else {
                data[0] = x0 + coords[curseg * 2];
                data[1] = y0 + coords[curseg * 2 + 1];
                segtype = SEG_LINETO;
            }
            if (transform != null)
                transform.transform(data, 0, data, 0, 1);
            return segtype;
        }

        // This only matters for closed shapes
        public int getWindingRule() {
            return WIND_NON_ZERO;
        }
    };
}

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