Examples of com.lightcrafts.mediax.jai.util.Range

com.lightcrafts.mediax.jai.util.Range
A class to represent ranges of values. A range is defined to contain all the values between the minimum and maximum values, where the minimum/maximum value can be considered either included or excluded from the range.
This example creates a range of Integers whose minimum value is 1 and the maximum value is 5. The range is inclusive at both ends:
Range intRange = new Range(Integer.class, new Integer(1), new Integer(5));
A Range can be unbounded at either or both of its ends. An unbounded end is specified by passing null for the value of that end. A Range unbounded at both of its ends represents a range of all possible values for the Class of elements in that Range. The isMinIncluded() method will always return true for a Range unbounded on the minimum side and correspondingly the isMaxIncluded() method will always return true for a Range unbounded on the maximum side.
An empty range is defined as a Range whose minimum value is greater than it's maximum value if the ends are included, or as a Range whose minimum value is greater than or equal to it's maximum value, if the minimum or the maximum value is excluded. @since JAI 1.1

            JaiI18N.formatMsg("ParameterListDescriptorImpl5",
            new Object[] { paramNames[i] }));


        } else if (validParamValues[i] instanceof Range) {


      Range range = (Range)validParamValues[i];


      // If the validParamValues[i] is a Range, then
      // the Range's class must match with paramClass[i]
      if (!paramClasses[i].isAssignableFrom(
              range.getElementClass()))
          throw new IllegalArgumentException(
            JaiI18N.formatMsg("ParameterListDescriptorImpl6",
            new Object[]
        { range.getElementClass().getName(),
          paramClasses[i].getName(),
          paramNames[i] }));


        } else {

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        switch (index) {
        case 1:
        case 2:
        case 4:
        case 5:
            return new Range(Integer.class, new Integer(1), null);
        }
        return null;
    }

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    continue;


      if (validValues == null)
    validValues = new Object[numParams];


      validValues[i] = new Range(
        min.getClass(), (Comparable)min, (Comparable)max);
  }


  return validValues;
    }

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  // or the element class doesn't match, negotiation fails
  if (!(other instanceof NegotiableNumericRange))
      return null;


  NegotiableNumericRange otherNNRange = (NegotiableNumericRange)other;
  Range otherRange = otherNNRange.getRange();


  // If the range is null, i.e there are no valid values, then 
  // negotiation fails.
  if (otherRange == null) 
      return null;


  // If the elementClass' don't match, negotiation fails.
  if (otherRange.getElementClass() != range.getElementClass()) 
      return null;


  Range result = range.intersect(otherRange);


  // If there are no valid values, negotiation failed.
  if (result.isEmpty())
      return null;


  return new NegotiableNumericRange(result);
    }

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            int start_s_iy = s_iy;
            int start_ifracx = ifracx;
            int start_ifracy = ifracy;


            // Compute clipMinX, clipMinY
            Range clipRange = 
    performScanlineClipping(src_rect_x1, src_rect_y1,
          // Last point in the source is
          // x2 = x1 + width - 1
          // y2 = y1 + height - 1
          src_rect_x2 - 1, src_rect_y2 - 1,
          s_ix, s_iy,
          ifracx, ifracy,
          dst_min_x, dst_max_x,
          0, 0, 0, 0);
            int clipMinX = ((Integer)clipRange.getMinValue()).intValue();
            int clipMaxX = ((Integer)clipRange.getMaxValue()).intValue();


            if(clipMinX > clipMaxX) continue;


            int destYOffset = (y - destTransY)*
                destScanlineStride + destDBOffset;

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            int start_s_iy = s_iy;
            int start_ifracx = ifracx;
            int start_ifracy = ifracy;


            // Compute clipMinX, clipMinY
            Range clipRange = 
    performScanlineClipping(src_rect_x1, src_rect_y1,
          // Last point in the source is
          // x2 = x1 + width - 1
          // y2 = y1 + height - 1
          src_rect_x2 - 1, src_rect_y2 - 1,
          s_ix, s_iy,
          ifracx, ifracy,
          dst_min_x, dst_max_x,
          0, 0, 0, 0);
            int clipMinX = ((Integer)clipRange.getMinValue()).intValue();
            int clipMaxX = ((Integer)clipRange.getMaxValue()).intValue();


            if(clipMinX > clipMaxX) continue;


            int destYOffset = (y - destTransY)*
                destScanlineStride + destDBOffset;

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            int start_s_iy = s_iy;
            int start_ifracx = ifracx;
            int start_ifracy = ifracy;


            // Compute clipMinX, clipMinY
            Range clipRange = 
    performScanlineClipping(src_rect_x1, src_rect_y1,
          // Last point in the source is
          // x2 = x1 + width - 1
          // y2 = y1 + height - 1
          src_rect_x2 - 1, src_rect_y2 - 1,
          s_ix, s_iy,
          ifracx, ifracy,
          dst_min_x, dst_max_x,
          0, 0, 0, 0);
            int clipMinX = ((Integer)clipRange.getMinValue()).intValue();
            int clipMaxX = ((Integer)clipRange.getMaxValue()).intValue();


            if(clipMinX > clipMaxX) continue;


            int destYOffset = (y - destTransY)*
                destScanlineStride + destDBOffset;

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            clipMaxX = Math.min(clipMaxX, dx2);
        } else {
            // xdenom == 0, all points have same x coordinate as the first
            if (s_ix < src_rect_x1 || s_ix >= src_rect_x2) {
                clipMinX = clipMaxX = dst_min_x;
                return new Range(Integer.class,
                                 new Integer(clipMinX),
                                 new Integer(clipMaxX));
            }
        }


        long ydenom = incy*geom_frac_max + ifracdy;
        if (ydenom != 0) {
            long clipy1 = (long)src_rect_y1 + tpad;
            long clipy2 = (long)src_rect_y2 - bpad;


            long y1 = ((clipy1 - s_iy)*geom_frac_max - ifracy) +
                dst_min_x*ydenom;
            long y2 = ((clipy2 - s_iy)*geom_frac_max - ifracy) +
                dst_min_x*ydenom;


            // Moving backwards, switch roles of top and bottom edges
            if (ydenom < 0) {
                long tmp = y1;
                y1 = y2;
                y2 = tmp;
            }


            int dx1 = ceilRatio(y1, ydenom);
            clipMinX = Math.max(clipMinX, dx1);


            int dx2 = floorRatio(y2, ydenom) + 1;
            clipMaxX = Math.min(clipMaxX, dx2);
        } else {
            // ydenom == 0, all points have same y coordinate as the first
            if (s_iy < src_rect_y1 || s_iy >= src_rect_y2) {
                clipMinX = clipMaxX = dst_min_x;
            }
        }


        if (clipMinX > dst_max_x)
            clipMinX = dst_max_x;
        if (clipMaxX < dst_min_x)
            clipMaxX = dst_min_x;


        return new Range(Integer.class,
                         new Integer(clipMinX),
                         new Integer(clipMaxX));
    }

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            int ifracx = (int) Math.floor(fracx * geom_frac_max);
            int ifracy = (int) Math.floor(fracy * geom_frac_max);


            // Compute clipMinX, clipMinY
            Range clipRange = 
    performScanlineClipping(src_rect_x1, src_rect_y1,
          // Last point in the source is
          // x2 = x1 + width - 1
          // y2 = y1 + height - 1
          src_rect_x2 - 1, src_rect_y2 - 1,
          s_ix, s_iy,
          ifracx, ifracy,
          dst_min_x, dst_max_x,
          0, 0, 0, 0);
            int clipMinX = ((Integer)clipRange.getMinValue()).intValue();
            int clipMaxX = ((Integer)clipRange.getMaxValue()).intValue();


            // Advance s_ix, s_iy, ifracx, ifracy
            Point[] startPts = advanceToStartOfScanline(dst_min_x, clipMinX,
                                                        s_ix, s_iy,
                                                        ifracx, ifracy);

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            int ifracx = (int) Math.floor(fracx * geom_frac_max);
            int ifracy = (int) Math.floor(fracy * geom_frac_max);


            // Compute clipMinX, clipMinY
            Range clipRange = 
    performScanlineClipping(src_rect_x1, src_rect_y1,
          // Last point in the source is
          // x2 = x1 + width - 1
          // y2 = y1 + height - 1
          src_rect_x2 - 1, src_rect_y2 - 1,
          s_ix, s_iy,
          ifracx, ifracy,
          dst_min_x, dst_max_x,
          0, 0, 0, 0);
            int clipMinX = ((Integer)clipRange.getMinValue()).intValue();
            int clipMaxX = ((Integer)clipRange.getMaxValue()).intValue();


            // Advance s_ix, s_iy, ifracx, ifracy
            Point[] startPts = advanceToStartOfScanline(dst_min_x, clipMinX,
                                                        s_ix, s_iy,
                                                        ifracx, ifracy);

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com.lightcrafts.mediax.jai.ParameterListDescriptorImpl

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