Package java.awt.geom

Examples of java.awt.geom.FlatteningPathIterator

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public class getRecursionLimit
  implements Testlet
{
  public void test(TestHarness harness)
  {
    FlatteningPathIterator fpi;

    // Check 1
    fpi = new FlatteningPathIterator(
      new Line2D.Float().getPathIterator(null),
      9.2, 17);
    harness.check(fpi.getRecursionLimit(), 17);

    // Check 2 (in case it always returned 17)
    fpi = new FlatteningPathIterator(
      new Line2D.Float().getPathIterator(null), 2.1, 4);
    harness.check(fpi.getRecursionLimit(), 4);
  }
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    /**
     * {@inheritDoc}
     */
    public PathIterator getPathIterator(AffineTransform at, double flatness) {
        return new FlatteningPathIterator(getPathIterator(at), flatness);
    }
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    }

    @Override
    public Shape createStrokedShape( Shape shape ) {
        GeneralPath result = new GeneralPath();
        PathIterator it = new FlatteningPathIterator( shape.getPathIterator( null ), FLATNESS );
        float points[] = new float[6];
        float moveX = 0, moveY = 0;
        float lastX = 0, lastY = 0;
        float thisX = 0, thisY = 0;
        int type = 0;
        float next = 0;
        int currentShape = 0;
        int length = shapes.length;

        while ( currentShape < length && !it.isDone() ) {
            type = it.currentSegment( points );
            switch( type ){
            case PathIterator.SEG_MOVETO:
                moveX = lastX = points[0];
                moveY = lastY = points[1];
                result.moveTo( moveX, moveY );
                next = 0;
                break;

            case PathIterator.SEG_CLOSE:
                points[0] = moveX;
                points[1] = moveY;
                // Fall into....

            //$FALL-THROUGH$
            case PathIterator.SEG_LINETO:
                thisX = points[0];
                thisY = points[1];
                float dx = thisX-lastX;
                float dy = thisY-lastY;
                float distance = (float)Math.sqrt( dx*dx + dy*dy );
                if ( distance >= next ) {
                    float r = 1.0f/distance;
                    float angle = (float)Math.atan2( dy, dx );
                    while ( currentShape < length && distance >= next ) {
                        float x = lastX + next*dx*r;
                        float y = lastY + next*dy*r;
                        t.setToTranslation( x, y );
                        t.rotate( angle );
                        result.append( t.createTransformedShape( shapes[currentShape] ), false );
                        next += advance;
                        currentShape++;
                        if ( repeat )
                            currentShape %= length;
                    }
                }
                next -= distance;
                lastX = thisX;
                lastY = thisY;
                break;
            }
            it.next();
        }

        return result;
    }
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    public Shape createStrokedShape( Shape shape ) {
        FontRenderContext frc = new FontRenderContext(null, true, true);
        GlyphVector glyphVector = font.createGlyphVector(frc, text);

        GeneralPath result = new GeneralPath();
        PathIterator it = new FlatteningPathIterator( shape.getPathIterator( null ), FLATNESS );
        float points[] = new float[6];
        float moveX = 0, moveY = 0;
        float lastX = 0, lastY = 0;
        float thisX = 0, thisY = 0;
        int type = 0;
        float next = 0;
        int currentChar = 0;
        int length = glyphVector.getNumGlyphs();

        if ( length == 0 )
            return result;

        float factor = stretchToFit ? measurePathLength( shape )/(float)glyphVector.getLogicalBounds().getWidth() : 1.0f;
        float nextAdvance = 0;

        while ( currentChar < length && !it.isDone() ) {
            type = it.currentSegment( points );
            switch( type ){
            case PathIterator.SEG_MOVETO:
                moveX = lastX = points[0];
                moveY = lastY = points[1];
                result.moveTo( moveX, moveY );
                nextAdvance = glyphVector.getGlyphMetrics( currentChar ).getAdvance() * 0.5f;
                next = nextAdvance;
                break;

            case PathIterator.SEG_CLOSE:
                points[0] = moveX;
                points[1] = moveY;
                // Fall into....

                //$FALL-THROUGH$
            case PathIterator.SEG_LINETO:
                thisX = points[0];
                thisY = points[1];
                float dx = thisX-lastX;
                float dy = thisY-lastY;
                float distance = (float)Math.sqrt( dx*dx + dy*dy );
                if ( distance >= next ) {
                    float r = 1.0f/distance;
                    float angle = (float)Math.atan2( dy, dx );
                    while ( currentChar < length && distance >= next ) {
                        Shape glyph = glyphVector.getGlyphOutline( currentChar );
                        Point2D p = glyphVector.getGlyphPosition(currentChar);
                        float px = (float)p.getX();
                        float py = (float)p.getY();
                        float x = lastX + next*dx*r;
                        float y = lastY + next*dy*r;
                        float advance = nextAdvance;
                        nextAdvance = currentChar < length-1 ? glyphVector.getGlyphMetrics(currentChar+1).getAdvance() * 0.5f : 0;
                        t.setToTranslation( x, y );
                        t.rotate( angle );
                        t.translate( -px-advance, -py );
                        result.append( t.createTransformedShape( glyph ), false );
                        next += (advance+nextAdvance) * factor;
                        currentChar++;
                        if ( repeat )
                            currentChar %= length;
                    }
                }
                next -= distance;
                lastX = thisX;
                lastY = thisY;
                break;
            }
            it.next();
        }

        return result;
    }
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        return result;
    }

    public float measurePathLength( Shape shape ) {
        PathIterator it = new FlatteningPathIterator( shape.getPathIterator( null ), FLATNESS );
        float points[] = new float[6];
        float moveX = 0, moveY = 0;
        float lastX = 0, lastY = 0;
        float thisX = 0, thisY = 0;
        int type = 0;
        float total = 0;

        while ( !it.isDone() ) {
            type = it.currentSegment( points );
            switch( type ){
            case PathIterator.SEG_MOVETO:
                moveX = lastX = points[0];
                moveY = lastY = points[1];
                break;

            case PathIterator.SEG_CLOSE:
                points[0] = moveX;
                points[1] = moveY;
                // Fall into....

                //$FALL-THROUGH$
            case PathIterator.SEG_LINETO:
                thisX = points[0];
                thisY = points[1];
                float dx = thisX-lastX;
                float dy = thisY-lastY;
                total += (float)Math.sqrt( dx*dx + dy*dy );
                lastX = thisX;
                lastY = thisY;
                break;
            }
            it.next();
        }

        return total;
    }
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    protected void initialise() {

        pathLength = 0f;

        FlatteningPathIterator fpi = new FlatteningPathIterator(path.getPathIterator(new AffineTransform()), 0.01f);
        segments = new Vector(20);
        float lastMoveX = 0f;
        float lastMoveY = 0f;
        float currentX = 0f;
        float currentY = 0f;
        float seg[] = new float[6];
        int segType;

        segments.add(new PathSegment(PathIterator.SEG_MOVETO, 0f, 0f, 0f));

        while (!fpi.isDone()) {

            segType = fpi.currentSegment(seg);

            switch (segType) {

            case PathIterator.SEG_MOVETO:

                // System.err.println("== MOVE TO " + seg[0] + " " + seg[1]);

                segments.add(new PathSegment(segType, seg[0], seg[1], pathLength));
                currentX = seg[0];
                currentY = seg[1];
                lastMoveX = currentX;
                lastMoveY = currentY;

                break;

            case PathIterator.SEG_LINETO:

                // System.err.println("== LINE TO " + seg[0] + " " + seg[1]);

                pathLength += Point2D.distance(currentX, currentY, seg[0], seg[1]);
                segments.add(new PathSegment(segType, seg[0], seg[1], pathLength));

                currentX = seg[0];
                currentY = seg[1];

                break;

            case PathIterator.SEG_CLOSE:

                // System.err.println("== CLOSE TO " + lastMoveX + " " + lastMoveY);

                pathLength += Point2D.distance(currentX, currentY, lastMoveX, lastMoveY);
                segments.add(new PathSegment(PathIterator.SEG_LINETO, lastMoveX, lastMoveY, pathLength));

                currentX = lastMoveX;
                currentY = lastMoveY;

                break;

            default:

                // ouch, where have these come from
                System.out.println("Bad path segment types");

            }

            fpi.next();

        }

        initialised = true;
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    protected void initialise() {

        pathLength = 0f;

        FlatteningPathIterator fpi = new FlatteningPathIterator(path.getPathIterator(new AffineTransform()), 0.01f);
        segments = new Vector(20);
        float lastMoveX = 0f;
        float lastMoveY = 0f;
        float currentX = 0f;
        float currentY = 0f;
        float seg[] = new float[6];
        int segType;

        segments.add(new PathSegment(PathIterator.SEG_MOVETO, 0f, 0f, 0f));

        while (!fpi.isDone()) {

            segType = fpi.currentSegment(seg);

            switch (segType) {

            case PathIterator.SEG_MOVETO:

                //System.out.println("== MOVE TO " + seg[0] + " " + seg[1]);

                segments.add(new PathSegment(segType, seg[0], seg[1], pathLength));
                currentX = seg[0];
                currentY = seg[1];
                lastMoveX = currentX;
                lastMoveY = currentY;

                break;

            case PathIterator.SEG_LINETO:

                //System.out.println("== LINE TO " + seg[0] + " " + seg[1]);

                pathLength += Point2D.distance(currentX, currentY, seg[0], seg[1]);
                segments.add(new PathSegment(segType, seg[0], seg[1], pathLength));

                currentX = seg[0];
                currentY = seg[1];

                break;

            case PathIterator.SEG_CLOSE:

                //System.out.println("== CLOSE TO " + lastMoveX + " " + lastMoveY);

                pathLength += Point2D.distance(currentX, currentY, lastMoveX, lastMoveY);
                segments.add(new PathSegment(PathIterator.SEG_LINETO, lastMoveX, lastMoveY, pathLength));

                currentX = lastMoveX;
                currentY = lastMoveY;

                break;

            default:

                // ouch, where have these come from
                System.out.println("Bad path segment types");

            }

            fpi.next();

        }

        initialised = true;
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                    index++;
                    pi.next();
                    break;
                default:
                    sspi.setPathIterator(pi, currentX, currentY);
                    FlatteningPathIterator fpi =
                        new FlatteningPathIterator(sspi, 0.01f);
                    while (!fpi.isDone()) {
                        segType = fpi.currentSegment(seg);
                        if (segType == PathIterator.SEG_LINETO) {
                            pathLength += Point2D.distance(currentX, currentY,
                                                           seg[0], seg[1]);
                            segments.add(new PathSegment(segType, seg[0],
                                                         seg[1], pathLength,
                                                         origIndex));
                            currentX = seg[0];
                            currentY = seg[1];
                            index++;
                        }
                        fpi.next();
                    }
            }
        }
        segmentIndexes = new int[indexes.size()];
        for (int i = 0; i < segmentIndexes.length; i++) {
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    protected void initialise() {

        pathLength = 0f;

        FlatteningPathIterator fpi = new FlatteningPathIterator(path.getPathIterator(new AffineTransform()), 0.01f);
        segments = new Vector(20);
        float lastMoveX = 0f;
        float lastMoveY = 0f;
        float currentX = 0f;
        float currentY = 0f;
        float seg[] = new float[6];
        int segType;

        segments.add(new PathSegment(PathIterator.SEG_MOVETO, 0f, 0f, 0f));

        while (!fpi.isDone()) {

            segType = fpi.currentSegment(seg);

            switch (segType) {

            case PathIterator.SEG_MOVETO:

                // System.err.println("== MOVE TO " + seg[0] + " " + seg[1]);

                segments.add(new PathSegment(segType, seg[0], seg[1], pathLength));
                currentX = seg[0];
                currentY = seg[1];
                lastMoveX = currentX;
                lastMoveY = currentY;

                break;

            case PathIterator.SEG_LINETO:

                // System.err.println("== LINE TO " + seg[0] + " " + seg[1]);

                pathLength += Point2D.distance(currentX, currentY, seg[0], seg[1]);
                segments.add(new PathSegment(segType, seg[0], seg[1], pathLength));

                currentX = seg[0];
                currentY = seg[1];

                break;

            case PathIterator.SEG_CLOSE:

                // System.err.println("== CLOSE TO " + lastMoveX + " " + lastMoveY);

                pathLength += Point2D.distance(currentX, currentY, lastMoveX, lastMoveY);
                segments.add(new PathSegment(PathIterator.SEG_LINETO, lastMoveX, lastMoveY, pathLength));

                currentX = lastMoveX;
                currentY = lastMoveY;

                break;

            default:

                // ouch, where have these come from
                System.out.println("Bad path segment types");

            }

            fpi.next();

        }

        initialised = true;
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    protected void initialise() {

  pathLength = 0f;

  FlatteningPathIterator fpi = new FlatteningPathIterator(path.getPathIterator(new AffineTransform()), 0.01f);
  segments = new Vector(20);
  float lastMoveX = 0f;
  float lastMoveY = 0f;
  float currentX = 0f;
  float currentY = 0f;
  float seg[] = new float[6];
  int segType;
   
  segments.add(new PathSegment(PathIterator.SEG_MOVETO, 0f, 0f, 0f));

  while (!fpi.isDone()) {
     
      segType = fpi.currentSegment(seg);
     
      switch (segType) {
   
      case PathIterator.SEG_MOVETO:
   
    //System.out.println("== MOVE TO " + seg[0] + " " + seg[1]);
   
    segments.add(new PathSegment(segType, seg[0], seg[1], pathLength));
    currentX = seg[0];
    currentY = seg[1];
    lastMoveX = currentX;
    lastMoveY = currentY;
   
    break;
   
      case PathIterator.SEG_LINETO:
   
    //System.out.println("== LINE TO " + seg[0] + " " + seg[1]);
   
    pathLength += Point2D.distance(currentX, currentY, seg[0], seg[1]);
    segments.add(new PathSegment(segType, seg[0], seg[1], pathLength));

    currentX = seg[0];
    currentY = seg[1];
   
    break;
   
      case PathIterator.SEG_CLOSE:
   
    //System.out.println("== CLOSE TO " + lastMoveX + " " + lastMoveY);

    pathLength += Point2D.distance(currentX, currentY, lastMoveX, lastMoveY);
    segments.add(new PathSegment(PathIterator.SEG_LINETO, lastMoveX, lastMoveY, pathLength));
       
    currentX = lastMoveX;
    currentY = lastMoveY;
       
    break;

      default:
       
    // ouch, where have these come from
    System.out.println("Bad path segment types");
   
      }
     
      fpi.next();
     
  }

  initialised = true;
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