Beispiel #1
0
  public TrapezoidList tesselateStroke(
      Shape s,
      BasicStroke bs,
      boolean thin,
      boolean adjust,
      boolean antialias,
      AffineTransform at,
      Region clip) {

    float lw;
    if (thin) {
      if (antialias) {
        lw = 0.5f;
      } else {
        lw = 1.0f;
      }
    } else {
      lw = bs.getLineWidth();
    }

    convertPathData(s, at);

    double[] dashArray = floatToDoubleArray(bs.getDashArray());
    xTrapArray[0] = 0;

    xTrapArray =
        tesselateStrokeNative(
            points.getArray(),
            ops.getArray(),
            points.getSize(),
            ops.getSize(),
            xTrapArray,
            xTrapArray.length,
            lw,
            bs.getEndCap(),
            bs.getLineJoin(),
            bs.getMiterLimit(),
            dashArray,
            dashArray.length,
            bs.getDashPhase(),
            1,
            0,
            0,
            0,
            1,
            0,
            clip.getLoX(),
            clip.getLoY(),
            clip.getHiX(),
            clip.getHiY());

    return new TrapezoidList(xTrapArray);
  }
Beispiel #2
0
  public TrapezoidList tesselateFill(Shape s, AffineTransform at, Region clip) {
    int windingRule = convertPathData(s, at);
    xTrapArray[0] = 0;

    xTrapArray =
        tesselateFillNative(
            points.getArray(),
            ops.getArray(),
            points.getSize(),
            ops.getSize(),
            xTrapArray,
            xTrapArray.length,
            getCairoWindingRule(windingRule),
            clip.getLoX(),
            clip.getLoY(),
            clip.getHiX(),
            clip.getHiY());

    return new TrapezoidList(xTrapArray);
  }
Beispiel #3
0
 public void clear() {
   points.clear();
   ops.clear();
   xTrapArray[0] = 0;
 }
Beispiel #4
0
  protected int convertPathData(Shape s, AffineTransform at) {
    PathIterator pi = s.getPathIterator(at);

    double[] coords = new double[6];
    double currX = 0;
    double currY = 0;

    while (!pi.isDone()) {
      int curOp = pi.currentSegment(coords);

      int pointIndex;
      switch (curOp) {
        case PathIterator.SEG_MOVETO:
          ops.addByte(CAIRO_PATH_OP_MOVE_TO);
          pointIndex = points.getNextIndex();
          points.setX(pointIndex, DoubleToCairoFixed(coords[0]));
          points.setY(pointIndex, DoubleToCairoFixed(coords[1]));
          currX = coords[0];
          currY = coords[1];
          break;

        case PathIterator.SEG_LINETO:
          ops.addByte(CAIRO_PATH_OP_LINE_TO);
          pointIndex = points.getNextIndex();
          points.setX(pointIndex, DoubleToCairoFixed(coords[0]));
          points.setY(pointIndex, DoubleToCairoFixed(coords[1]));
          currX = coords[0];
          currY = coords[1];
          break;

          /** q0 = p0 q1 = (p0+2*p1)/3 q2 = (p2+2*p1)/3 q3 = p2 */
        case PathIterator.SEG_QUADTO:
          double x1 = coords[0];
          double y1 = coords[1];
          double x2, y2;
          double x3 = coords[2];
          double y3 = coords[3];

          x2 = x1 + (x3 - x1) / 3;
          y2 = y1 + (y3 - y1) / 3;
          x1 = currX + 2 * (x1 - currX) / 3;
          y1 = currY + 2 * (y1 - currY) / 3;

          ops.addByte(CAIRO_PATH_OP_CURVE_TO);
          pointIndex = points.getNextIndex();
          points.setX(pointIndex, DoubleToCairoFixed(x1));
          points.setY(pointIndex, DoubleToCairoFixed(y1));
          pointIndex = points.getNextIndex();
          points.setX(pointIndex, DoubleToCairoFixed(x2));
          points.setY(pointIndex, DoubleToCairoFixed(y2));
          pointIndex = points.getNextIndex();
          points.setX(pointIndex, DoubleToCairoFixed(x3));
          points.setY(pointIndex, DoubleToCairoFixed(y3));
          currX = x3;
          currY = y3;
          break;

        case PathIterator.SEG_CUBICTO:
          ops.addByte(CAIRO_PATH_OP_CURVE_TO);
          pointIndex = points.getNextIndex();
          points.setX(pointIndex, DoubleToCairoFixed(coords[0]));
          points.setY(pointIndex, DoubleToCairoFixed(coords[1]));
          pointIndex = points.getNextIndex();
          points.setX(pointIndex, DoubleToCairoFixed(coords[2]));
          points.setY(pointIndex, DoubleToCairoFixed(coords[3]));
          pointIndex = points.getNextIndex();
          points.setX(pointIndex, DoubleToCairoFixed(coords[4]));
          points.setY(pointIndex, DoubleToCairoFixed(coords[5]));
          currX = coords[4];
          currY = coords[5];
          break;

        case PathIterator.SEG_CLOSE:
          ops.addByte(CAIRO_PATH_OP_CLOSE_PATH);
          break;
      }

      pi.next();
    }

    return pi.getWindingRule();
  }