Make com.jogamp.graph.geom.plane non public: jogamp.graph.geom.plane, this incl. creating the non public FontInt interface for Path2D access

1 files changed, 573 insertions, 0 deletions

diff --git a/src/jogamp/graph/geom/plane/AffineTransform.java b/src/jogamp/graph/geom/plane/AffineTransform.java
new file mode 100644
index 000000000..02fb9993d
--- /dev/null
+++ b/src/jogamp/graph/geom/plane/AffineTransform.java
@@ -0,0 +1,573 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+/**
+ * @author Denis M. Kishenko
+ */
+package jogamp.graph.geom.plane;
+
+import java.io.IOException;
+import java.io.Serializable;
+
+import jogamp.graph.math.MathFloat;
+import org.apache.harmony.misc.HashCode;
+
+import com.jogamp.graph.geom.Point;
+import com.jogamp.graph.geom.Point.Factory;
+
+public class AffineTransform implements Cloneable, Serializable {
+
+    private static final long serialVersionUID = 1330973210523860834L;
+
+    static final String determinantIsZero = "Determinant is zero";
+    
+    public static final int TYPE_IDENTITY = 0;
+    public static final int TYPE_TRANSLATION = 1;
+    public static final int TYPE_UNIFORM_SCALE = 2;
+    public static final int TYPE_GENERAL_SCALE = 4;
+    public static final int TYPE_QUADRANT_ROTATION = 8;
+    public static final int TYPE_GENERAL_ROTATION = 16;
+    public static final int TYPE_GENERAL_TRANSFORM = 32;
+    public static final int TYPE_FLIP = 64;
+    public static final int TYPE_MASK_SCALE = TYPE_UNIFORM_SCALE | TYPE_GENERAL_SCALE;
+    public static final int TYPE_MASK_ROTATION = TYPE_QUADRANT_ROTATION | TYPE_GENERAL_ROTATION;
+
+    /**
+     * The <code>TYPE_UNKNOWN</code> is an initial type value
+     */
+    static final int TYPE_UNKNOWN = -1;
+    
+    /**
+     * The min value equivalent to zero. If absolute value less then ZERO it considered as zero.  
+     */
+    static final float ZERO = (float) 1E-10;
+   
+    private final Point.Factory<? extends Point> pointFactory;
+    
+    /**
+     * The values of transformation matrix
+     */
+    float m00;
+    float m10;
+    float m01;
+    float m11;
+    float m02;
+    float m12;
+
+    /**
+     * The transformation <code>type</code> 
+     */
+    transient int type;
+
+    public AffineTransform(Factory<? extends Point> factory) {
+    	pointFactory = factory;
+        type = TYPE_IDENTITY;
+        m00 = m11 = 1.0f;
+        m10 = m01 = m02 = m12 = 0.0f;
+    }
+
+    public AffineTransform(AffineTransform t) {
+    	this.pointFactory = t.pointFactory;
+        this.type = t.type;
+        this.m00 = t.m00;
+        this.m10 = t.m10;
+        this.m01 = t.m01;
+        this.m11 = t.m11;
+        this.m02 = t.m02;
+        this.m12 = t.m12;
+    }
+
+    public AffineTransform(Point.Factory<? extends Point> factory, float m00, float m10, float m01, float m11, float m02, float m12) {
+    	pointFactory = factory;
+        this.type = TYPE_UNKNOWN;
+        this.m00 = m00;
+        this.m10 = m10;
+        this.m01 = m01;
+        this.m11 = m11;
+        this.m02 = m02;
+        this.m12 = m12;
+    }
+
+    public AffineTransform(Point.Factory<? extends Point> factory, float[] matrix) {
+    	pointFactory = factory;
+        this.type = TYPE_UNKNOWN;
+        m00 = matrix[0];
+        m10 = matrix[1];
+        m01 = matrix[2];
+        m11 = matrix[3];
+        if (matrix.length > 4) {
+            m02 = matrix[4];
+            m12 = matrix[5];
+        }
+    }
+
+    /*
+     * Method returns type of affine transformation.
+     * 
+     * Transform matrix is
+     *   m00 m01 m02
+     *   m10 m11 m12
+     * 
+     * According analytic geometry new basis vectors are (m00, m01) and (m10, m11), 
+     * translation vector is (m02, m12). Original basis vectors are (1, 0) and (0, 1). 
+     * Type transformations classification:  
+     *   TYPE_IDENTITY - new basis equals original one and zero translation
+     *   TYPE_TRANSLATION - translation vector isn't zero  
+     *   TYPE_UNIFORM_SCALE - vectors length of new basis equals
+     *   TYPE_GENERAL_SCALE - vectors length of new basis doesn't equal 
+     *   TYPE_FLIP - new basis vector orientation differ from original one
+     *   TYPE_QUADRANT_ROTATION - new basis is rotated by 90, 180, 270, or 360 degrees     
+     *   TYPE_GENERAL_ROTATION - new basis is rotated by arbitrary angle
+     *   TYPE_GENERAL_TRANSFORM - transformation can't be inversed
+     */
+    public int getType() {
+        if (type != TYPE_UNKNOWN) {
+            return type;
+        }
+
+        int type = 0;
+
+        if (m00 * m01 + m10 * m11 != 0.0) {
+            type |= TYPE_GENERAL_TRANSFORM;
+            return type;
+        }
+
+        if (m02 != 0.0 || m12 != 0.0) {
+            type |= TYPE_TRANSLATION;
+        } else
+            if (m00 == 1.0 && m11 == 1.0 && m01 == 0.0 && m10 == 0.0) {
+                type = TYPE_IDENTITY;
+                return type;
+            }
+
+        if (m00 * m11 - m01 * m10 < 0.0) {
+            type |= TYPE_FLIP;
+        }
+
+        float dx = m00 * m00 + m10 * m10;
+        float dy = m01 * m01 + m11 * m11;
+        if (dx != dy) {
+            type |= TYPE_GENERAL_SCALE;
+        } else
+            if (dx != 1.0) {
+                type |= TYPE_UNIFORM_SCALE;
+            }
+
+        if ((m00 == 0.0 && m11 == 0.0) ||
+            (m10 == 0.0 && m01 == 0.0 && (m00 < 0.0 || m11 < 0.0)))
+        {
+            type |= TYPE_QUADRANT_ROTATION;
+        } else
+            if (m01 != 0.0 || m10 != 0.0) {
+                type |= TYPE_GENERAL_ROTATION;
+            }
+
+        return type;
+    }
+
+    public float getScaleX() {
+        return m00;
+    }
+
+    public float getScaleY() {
+        return m11;
+    }
+
+    public float getShearX() {
+        return m01;
+    }
+
+    public float getShearY() {
+        return m10;
+    }
+
+    public float getTranslateX() {
+        return m02;
+    }
+
+    public float getTranslateY() {
+        return m12;
+    }
+
+    public boolean isIdentity() {
+        return getType() == TYPE_IDENTITY;
+    }
+
+    public void getMatrix(float[] matrix) {
+        matrix[0] = m00;
+        matrix[1] = m10;
+        matrix[2] = m01;
+        matrix[3] = m11;
+        if (matrix.length > 4) {
+            matrix[4] = m02;
+            matrix[5] = m12;
+        }
+    }
+
+    public float getDeterminant() {
+        return m00 * m11 - m01 * m10;
+    }
+
+    public void setTransform(float m00, float m10, float m01, float m11, float m02, float m12) {
+        this.type = TYPE_UNKNOWN;
+        this.m00 = m00;
+        this.m10 = m10;
+        this.m01 = m01;
+        this.m11 = m11;
+        this.m02 = m02;
+        this.m12 = m12;
+    }
+
+    public void setTransform(AffineTransform t) {
+        type = t.type;
+        setTransform(t.m00, t.m10, t.m01, t.m11, t.m02, t.m12);
+    }
+
+    public void setToIdentity() {
+        type = TYPE_IDENTITY;
+        m00 = m11 = 1.0f;
+        m10 = m01 = m02 = m12 = 0.0f;
+    }
+
+    public void setToTranslation(float mx, float my) {
+        m00 = m11 = 1.0f;
+        m01 = m10 = 0.0f;
+        m02 = mx;
+        m12 = my;
+        if (mx == 0.0f && my == 0.0f) {
+            type = TYPE_IDENTITY;
+        } else {
+            type = TYPE_TRANSLATION;
+        }
+    }
+
+    public void setToScale(float scx, float scy) {
+        m00 = scx;
+        m11 = scy;
+        m10 = m01 = m02 = m12 = 0.0f;
+        if (scx != 1.0f || scy != 1.0f) {
+            type = TYPE_UNKNOWN;
+        } else {
+            type = TYPE_IDENTITY;
+        }
+    }
+
+    public void setToShear(float shx, float shy) {
+        m00 = m11 = 1.0f;
+        m02 = m12 = 0.0f;
+        m01 = shx;
+        m10 = shy;
+        if (shx != 0.0f || shy != 0.0f) {
+            type = TYPE_UNKNOWN;
+        } else {
+            type = TYPE_IDENTITY;
+        }
+    }
+
+    public void setToRotation(float angle) {
+        float sin = MathFloat.sin(angle);
+        float cos = MathFloat.cos(angle);
+        if (MathFloat.abs(cos) < ZERO) {
+            cos = 0.0f;
+            sin = sin > 0.0f ? 1.0f : -1.0f;
+        } else
+            if (MathFloat.abs(sin) < ZERO) {
+                sin = 0.0f;
+                cos = cos > 0.0f ? 1.0f : -1.0f;
+            }
+        m00 = m11 = cos;
+        m01 = -sin;
+        m10 = sin;
+        m02 = m12 = 0.0f;
+        type = TYPE_UNKNOWN;
+    }
+
+    public void setToRotation(float angle, float px, float py) {
+        setToRotation(angle);
+        m02 = px * (1.0f - m00) + py * m10;
+        m12 = py * (1.0f - m00) - px * m10;
+        type = TYPE_UNKNOWN;
+    }
+
+    public static <T extends Point> AffineTransform getTranslateInstance(Point.Factory<? extends Point> factory, float mx, float my) {
+        AffineTransform t = new AffineTransform(factory);
+        t.setToTranslation(mx, my);
+        return t;
+    }
+
+    public static <T extends Point> AffineTransform getScaleInstance(Point.Factory<? extends Point> factory, float scx, float scY) {
+    	AffineTransform t = new AffineTransform(factory);
+        t.setToScale(scx, scY);
+        return t;
+    }
+
+    public static <T extends Point> AffineTransform getShearInstance(Point.Factory<? extends Point> factory, float shx, float shy) {
+    	AffineTransform t = new AffineTransform(factory);        
+        t.setToShear(shx, shy);
+        return t;
+    }
+
+    public static <T extends Point> AffineTransform getRotateInstance(Point.Factory<? extends Point> factory, float angle) {
+    	AffineTransform t = new AffineTransform(factory);
+        t.setToRotation(angle);
+        return t;
+    }
+
+    public static <T extends Point> AffineTransform getRotateInstance(Point.Factory<? extends Point> factory, float angle, float x, float y) {
+    	AffineTransform t = new AffineTransform(factory);
+        t.setToRotation(angle, x, y);
+        return t;
+    }
+
+    public void translate(float mx, float my) {
+        concatenate(AffineTransform.getTranslateInstance(pointFactory, mx, my));
+    }
+
+    public void scale(float scx, float scy) {
+        concatenate(AffineTransform.getScaleInstance(pointFactory, scx, scy));
+    }
+
+    public void shear(float shx, float shy) {
+        concatenate(AffineTransform.getShearInstance(pointFactory, shx, shy));
+    }
+
+    public void rotate(float angle) {
+        concatenate(AffineTransform.getRotateInstance(pointFactory, angle));
+    }
+
+    public void rotate(float angle, float px, float py) {
+        concatenate(AffineTransform.getRotateInstance(pointFactory, angle, px, py));
+    }
+
+    /** 
+     * Multiply matrix of two AffineTransform objects.
+     * The first argument's {@link Point.Factory} is being used.
+     * 
+     * @param t1 - the AffineTransform object is a multiplicand
+     * @param t2 - the AffineTransform object is a multiplier
+     * @return an AffineTransform object that is a result of t1 multiplied by matrix t2. 
+     */
+    AffineTransform multiply(AffineTransform t1, AffineTransform t2) {
+        return new AffineTransform(t1.pointFactory,
+                t1.m00 * t2.m00 + t1.m10 * t2.m01,          // m00
+                t1.m00 * t2.m10 + t1.m10 * t2.m11,          // m01
+                t1.m01 * t2.m00 + t1.m11 * t2.m01,          // m10
+                t1.m01 * t2.m10 + t1.m11 * t2.m11,          // m11
+                t1.m02 * t2.m00 + t1.m12 * t2.m01 + t2.m02, // m02
+                t1.m02 * t2.m10 + t1.m12 * t2.m11 + t2.m12);// m12
+    }
+
+    public void concatenate(AffineTransform t) {
+        setTransform(multiply(t, this));
+    }
+
+    public void preConcatenate(AffineTransform t) {
+        setTransform(multiply(this, t));
+    }
+
+    public AffineTransform createInverse() throws NoninvertibleTransformException {
+        float det = getDeterminant();
+        if (MathFloat.abs(det) < ZERO) {
+            throw new NoninvertibleTransformException(determinantIsZero);
+        }
+        return new AffineTransform(
+        		this.pointFactory,
+                 m11 / det, // m00
+                -m10 / det, // m10
+                -m01 / det, // m01
+                 m00 / det, // m11
+                (m01 * m12 - m11 * m02) / det, // m02
+                (m10 * m02 - m00 * m12) / det  // m12
+        );
+    }
+
+	public Point transform(Point src, Point dst) {
+        if (dst == null) {
+        	dst = pointFactory.create();
+        }
+
+        float x = src.getX();
+        float y = src.getY();
+
+        dst.setCoord(x * m00 + y * m01 + m02, x * m10 + y * m11 + m12);
+        return dst;
+    }
+
+    public void transform(Point[] src, int srcOff, Point[] dst, int dstOff, int length) {
+        while (--length >= 0) {
+        	Point srcPoint = src[srcOff++]; 
+            float x = srcPoint.getX();
+            float y = srcPoint.getY();
+            Point dstPoint = dst[dstOff];
+            if (dstPoint == null) {
+            	throw new IllegalArgumentException("dst["+dstOff+"] is null");
+            }
+            dstPoint.setCoord(x * m00 + y * m01 + m02, x * m10 + y * m11 + m12);
+            dst[dstOff++] = dstPoint;
+        }
+    }
+    
+    public void transform(float[] src, int srcOff, float[] dst, int dstOff, int length) {
+        int step = 2;
+        if (src == dst && srcOff < dstOff && dstOff < srcOff + length * 2) {
+            srcOff = srcOff + length * 2 - 2;
+            dstOff = dstOff + length * 2 - 2;
+            step = -2;
+        }
+        while (--length >= 0) {
+            float x = src[srcOff + 0];
+            float y = src[srcOff + 1];
+            dst[dstOff + 0] = x * m00 + y * m01 + m02;
+            dst[dstOff + 1] = x * m10 + y * m11 + m12;
+            srcOff += step;
+            dstOff += step;
+        }
+    }
+    
+	public Point deltaTransform(Point src, Point dst) {
+        if (dst == null) {
+        	dst = pointFactory.create();
+        }
+
+        float x = src.getX();
+        float y = src.getY();
+
+        dst.setCoord(x * m00 + y * m01, x * m10 + y * m11);
+        return dst;
+    }
+
+    public void deltaTransform(float[] src, int srcOff, float[] dst, int dstOff, int length) {
+        while (--length >= 0) {
+            float x = src[srcOff++];
+            float y = src[srcOff++];
+            dst[dstOff++] = x * m00 + y * m01;
+            dst[dstOff++] = x * m10 + y * m11;
+        }
+    }
+
+	public Point inverseTransform(Point src, Point dst) throws NoninvertibleTransformException {
+        float det = getDeterminant();
+        if (MathFloat.abs(det) < ZERO) {
+        	throw new NoninvertibleTransformException(determinantIsZero);
+        }
+        if (dst == null) {
+        	dst = pointFactory.create();
+        }
+
+        float x = src.getX() - m02;
+        float y = src.getY() - m12;
+
+        dst.setCoord((x * m11 - y * m01) / det, (y * m00 - x * m10) / det);
+        return dst;
+    }
+
+    public void inverseTransform(float[] src, int srcOff, float[] dst, int dstOff, int length)
+        throws NoninvertibleTransformException
+    {
+        float det = getDeterminant();
+        if (MathFloat.abs(det) < ZERO) {
+        	throw new NoninvertibleTransformException(determinantIsZero);        	
+        }
+
+        while (--length >= 0) {
+            float x = src[srcOff++] - m02;
+            float y = src[srcOff++] - m12;
+            dst[dstOff++] = (x * m11 - y * m01) / det;
+            dst[dstOff++] = (y * m00 - x * m10) / det;
+        }
+    }
+
+    public Path2D createTransformedShape(Path2D src) {
+        if (src == null) {
+            return null;
+        }
+        if (src instanceof Path2D) {
+            return ((Path2D)src).createTransformedShape(this);
+        }
+        PathIterator path = src.iterator(this);
+        Path2D dst = new Path2D(path.getWindingRule());
+        dst.append(path, false);
+        return dst;
+    }
+
+    @Override
+    public String toString() {
+        return
+            getClass().getName() +
+            "[[" + m00 + ", " + m01 + ", " + m02 + "], [" //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+                + m10 + ", " + m11 + ", " + m12 + "]]"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+    }
+
+    @Override
+    public Object clone() {
+        try {
+            return super.clone();
+        } catch (CloneNotSupportedException e) {
+            throw new InternalError();
+        }
+    }
+
+    @Override
+    public int hashCode() {
+        HashCode hash = new HashCode();
+        hash.append(m00);
+        hash.append(m01);
+        hash.append(m02);
+        hash.append(m10);
+        hash.append(m11);
+        hash.append(m12);
+        return hash.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        }
+        if (obj instanceof AffineTransform) {
+            AffineTransform t = (AffineTransform)obj;
+            return
+                m00 == t.m00 && m01 == t.m01 &&
+                m02 == t.m02 && m10 == t.m10 &&
+                m11 == t.m11 && m12 == t.m12;
+        }
+        return false;
+    }
+
+    
+    /**
+     * Write AffineTrasform object to the output steam.
+     * @param stream - the output stream
+     * @throws IOException - if there are I/O errors while writing to the output strem
+     */
+    private void writeObject(java.io.ObjectOutputStream stream) throws IOException {
+        stream.defaultWriteObject();
+    }
+
+    
+    /**
+     * Read AffineTransform object from the input stream
+     * @param stream - the input steam
+     * @throws IOException - if there are I/O errors while reading from the input strem
+     * @throws ClassNotFoundException - if class could not be found 
+     */
+    private void readObject(java.io.ObjectInputStream stream) throws IOException, ClassNotFoundException {
+        stream.defaultReadObject();
+        type = TYPE_UNKNOWN;
+    }
+
+}
+