1 files changed, 243 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/awt/font/opentype/truetype/Zone.java b/libjava/classpath/gnu/java/awt/font/opentype/truetype/Zone.java
new file mode 100644
index 00000000000..c0a3947f684
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+++ b/libjava/classpath/gnu/java/awt/font/opentype/truetype/Zone.java
@@ -0,0 +1,243 @@
+/* Zone.java -- A collection of points with some additional information.
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.java.awt.font.opentype.truetype;
+
+import java.awt.geom.AffineTransform;
+import java.awt.geom.GeneralPath;
+import java.awt.geom.PathIterator;
+
+
+/**
+ * A collection of points with some additional information.
+ */
+final class Zone
+{
+  private final int[] pos;
+  private final int[] origPos;
+  private final byte[] flags;
+  private int numPoints;
+
+  private static final int FLAG_TOUCHED_X = 1;
+  private static final int FLAG_TOUCHED_Y = 2;
+  private static final int FLAG_ON_CURVE = 4;
+  private static final int FLAG_CONTOUR_END = 8;
+
+  public Zone(int maxNumPoints)
+  {
+    origPos = new int[maxNumPoints * 2];
+    pos = new int[maxNumPoints * 2];
+    flags = new byte[maxNumPoints];
+  }
+
+
+  public int getCapacity()
+  {
+    return flags.length;
+  }
+
+
+  public int getSize()
+  {
+    return numPoints;
+  }
+
+
+  public int getX(int point)
+  {
+    return pos[2 * point];
+  }
+
+
+  public void setX(int point, int value, boolean touch)
+  {
+    pos[2 * point] = value;
+    if (touch)
+      flags[point] |= FLAG_TOUCHED_X;
+  }
+
+
+  public void setY(int point, int value, boolean touch)
+  {
+    pos[2 * point + 1] = value;
+    if (touch)
+      flags[point] |= FLAG_TOUCHED_Y;
+  }
+
+
+  public int getY(int point)
+  {
+    return pos[2 * point + 1];
+  }
+
+
+  public int getOriginalX(int point)
+  {
+    return origPos[2 * point];
+  }
+
+
+  public int getOriginalY(int point)
+  {
+    return origPos[2 * point + 1];
+  }
+
+
+  public void setOriginalX(int point, int x)
+  {
+    origPos[2 * point] = x;
+  }
+
+  public void setOriginalY(int point, int y)
+  {
+    origPos[2 * point + 1] = y;
+  }
+
+  public void setNumPoints(int numPoints)
+  {
+    this.numPoints = numPoints;
+    for (int i = 0; i < numPoints; i++)
+      flags[i] = 0;
+    for (int i = 0; i < 2 * numPoints; i++)
+      origPos[i] = pos[i] = 0;
+  }
+
+
+  public boolean isOnCurve(int point)
+  {
+    return (flags[point] & FLAG_ON_CURVE) != 0;
+  }
+
+
+  public void setOnCurve(int point, boolean onCurve)
+  {
+    if (onCurve)
+      flags[point] |= FLAG_ON_CURVE;
+    else
+      flags[point] &= ~FLAG_ON_CURVE;
+  }
+
+
+  public boolean isContourEnd(int point)
+  {
+    return (flags[point] & FLAG_CONTOUR_END) != 0;
+  }
+
+
+  public void setContourEnd(int point, boolean segEnd)
+  {
+    if (segEnd)
+      flags[point] |= FLAG_CONTOUR_END;
+    else
+      flags[point] &= ~FLAG_CONTOUR_END;
+  }
+
+
+
+
+  void transform(double pointSize, AffineTransform deviceTransform,
+                 int unitsPerEm, int preTranslateX, int preTranslateY)
+  {
+    double scaleX, scaleY, shearX, shearY;
+    double factor;
+
+    factor = pointSize / (double) unitsPerEm;
+    scaleX = deviceTransform.getScaleX() * factor;
+    scaleY = deviceTransform.getScaleY() * factor;
+    shearX = deviceTransform.getShearX() * factor;
+    shearY = deviceTransform.getShearY() * factor;
+
+    for (int i = 0; i < numPoints; i++)
+    {
+      int x = origPos[2 * i] + preTranslateX;
+      int y = origPos[2 * i + 1] + preTranslateY;
+
+      origPos[2*i] = pos[2 * i] = Fixed.valueOf(scaleX * x + shearX * y);
+      origPos[2*i+1] = pos[2 * i + 1] = Fixed.valueOf(shearY * x + scaleY * y);
+    }
+  }
+
+
+
+  void combineWithSubGlyph(Zone zone, int numPhantomPoints)
+  {
+    int offset = this.numPoints - numPhantomPoints;
+    int count = zone.numPoints;
+    System.arraycopy(zone.origPos, 0, this.origPos, 2 * offset,
+                     count * 2);
+    System.arraycopy(zone.pos, 0, this.pos, 2 * offset,
+                     count * 2);
+    System.arraycopy(zone.flags, 0, this.flags, offset, count);
+    this.numPoints += count - numPhantomPoints;
+  }
+
+
+  private void dump()
+  {
+    for (int i = 0; i < numPoints; i++)
+    {
+      System.out.print(" " + i + ": ");
+      System.out.print(Fixed.toString(pos[i*2], pos[i*2+1]));
+      System.out.print(' ');
+      System.out.print(Fixed.toString(origPos[i*2], origPos[i*2+1]));
+      System.out.print(' ');
+      if (isOnCurve(i))
+        System.out.print('.');
+      else
+        System.out.print('c');
+      if (isContourEnd(i))      
+        System.out.print('E');
+      System.out.println();
+      if (isContourEnd(i))
+        System.out.println();
+    }
+  }
+
+
+  public PathIterator getPathIterator()
+  {
+    return new ZonePathIterator(this);
+  }
+
+
+  public GeneralPath getPath()
+  {
+    GeneralPath p = new GeneralPath(GeneralPath.WIND_NON_ZERO, numPoints);
+    p.append(getPathIterator(), /* connect */ false);
+    return p;
+  }
+}