aboutsummaryrefslogtreecommitdiff
path: root/libjava/java/awt/geom/AffineTransform.java
diff options
context:
space:
mode:
Diffstat (limited to 'libjava/java/awt/geom/AffineTransform.java')
-rw-r--r--libjava/java/awt/geom/AffineTransform.java652
1 files changed, 0 insertions, 652 deletions
diff --git a/libjava/java/awt/geom/AffineTransform.java b/libjava/java/awt/geom/AffineTransform.java
deleted file mode 100644
index 71208c08ecc..00000000000
--- a/libjava/java/awt/geom/AffineTransform.java
+++ /dev/null
@@ -1,652 +0,0 @@
-/* Copyright (C) 2000 Free Software Foundation
-
- This file is part of libjava.
-
-This software is copyrighted work licensed under the terms of the
-Libjava License. Please consult the file "LIBJAVA_LICENSE" for
-details. */
-
-package java.awt.geom;
-import java.awt.*;
-import java.io.Serializable;
-
-/**
- * @author Tom Tromey <tromey@cygnus.com>
- * @date April 16, 2000
- */
-
-/* Status: mostly complete. Search for fixme to see problems.
- Also, TYPE_ returns are not handled correctly. */
-
-public class AffineTransform implements Cloneable, Serializable
-{
- static final int TYPE_IDENTITY = 0;
- static final int TYPE_FLIP = 64;
- static final int TYPE_GENERAL_ROTATION = 16;
- static final int TYPE_GENERAL_SCALE = 4;
- static final int TYPE_GENERAL_TRANSFORM = 32;
- static final int TYPE_MASK_ROTATION = 24;
- static final int TYPE_MASK_SCALE = 6;
- static final int TYPE_QUADRANT_ROTATION = 8;
- static final int TYPE_TRANSLATION = 1;
- static final int TYPE_UNIFORM_SCALE = 2;
-
- public AffineTransform ()
- {
- setToIdentity ();
- }
-
- public AffineTransform (AffineTransform tx)
- {
- setTransform (tx);
- }
-
- public AffineTransform (float m00, float m10,
- float m01, float m11,
- float m02, float m12)
- {
- this.m00 = m00;
- this.m10 = m10;
- this.m01 = m01;
- this.m11 = m11;
- this.m02 = m02;
- this.m12 = m12;
- this.type = 0; // fixme;
- }
-
- public AffineTransform (float[] flatmatrix)
- {
- m00 = flatmatrix[0];
- m10 = flatmatrix[1];
- m01 = flatmatrix[2];
- m11 = flatmatrix[3];
- if (flatmatrix.length >= 6)
- {
- m02 = flatmatrix[4];
- m12 = flatmatrix[5];
- }
- }
-
- public AffineTransform (double m00, double m10, double m01,
- double m11, double m02, double m12)
- {
- this.m00 = m00;
- this.m10 = m10;
- this.m01 = m01;
- this.m11 = m11;
- this.m02 = m02;
- this.m12 = m12;
- this.type = TYPE_GENERAL_TRANSFORM;
- }
-
- public AffineTransform (double[] flatmatrix)
- {
- m00 = flatmatrix[0];
- m10 = flatmatrix[1];
- m01 = flatmatrix[2];
- m11 = flatmatrix[3];
- if (flatmatrix.length >= 6)
- {
- m02 = flatmatrix[4];
- m12 = flatmatrix[5];
- }
- }
-
- public static AffineTransform getTranslateInstance (double tx, double ty)
- {
- AffineTransform t = new AffineTransform ();
- t.setToTranslation (tx, ty);
- return t;
- }
-
- public static AffineTransform getRotateInstance (double theta)
- {
- AffineTransform t = new AffineTransform ();
- t.setToRotation (theta);
- return t;
- }
-
- public static AffineTransform getRotateInstance (double theta,
- double x, double y)
- {
- AffineTransform t = new AffineTransform ();
- t.rotate (theta, x, y);
- return t;
- }
-
- public static AffineTransform getScaleInstance (double sx, double sy)
- {
- AffineTransform t = new AffineTransform ();
- t.setToScale (sx, sy);
- return t;
- }
-
- public static AffineTransform getShearInstance (double shx, double shy)
- {
- AffineTransform t = new AffineTransform ();
- t.setToShear (shx, shy);
- return t;
- }
-
- public int getType ()
- {
- return type;
- }
-
- public double getDeterminant ()
- {
- return m00 * m11 - m01 * m10;
- }
-
- public void getMatrix (double[] flatmatrix)
- {
- flatmatrix[0] = m00;
- flatmatrix[1] = m10;
- flatmatrix[2] = m01;
- flatmatrix[3] = m11;
- if (flatmatrix.length >= 6)
- {
- flatmatrix[4] = m02;
- flatmatrix[5] = m12;
- }
- }
-
- public double getScaleX ()
- {
- return m00;
- }
-
- public double getScaleY ()
- {
- return m11;
- }
-
- public double getShearX ()
- {
- return m01;
- }
-
- public double getShearY ()
- {
- return m10;
- }
-
- public double getTranslateX ()
- {
- return m02;
- }
-
- public double getTranslateY ()
- {
- return m12;
- }
-
- public void translate (double tx, double ty)
- {
- m02 += tx * m00 + ty * m01;
- m12 += tx * m10 + ty * m11;
- }
-
- public void rotate (double theta)
- {
- double c = Math.cos (theta);
- double s = Math.sin (theta);
- double n00 = m00 * c + m01 * s;
- double n01 = m00 * -s + m01 * c;
- double n10 = m10 * c + m11 * s;
- double n11 = m10 * -s + m11 * c;
-
- m00 = n00;
- m01 = n01;
- m10 = n10;
- m11 = n11;
- }
-
- public void rotate (double theta, double x, double y)
- {
- translate (x, y);
- rotate (theta);
- translate (-x, -y);
- }
-
- public void scale (double sx, double sy)
- {
- m00 *= sx;
- m01 *= sy;
- m10 *= sx;
- m11 *= sy;
- }
-
- public void shear (double shx, double shy)
- {
- double n00 = m00 + shx * m01;
- double n01 = shx * m00 + m01;
- double n10 = m10 * shy + m11;
- double n11 = shx * m10 + m11;
-
- m00 = n00;
- m01 = n01;
- m10 = n10;
- m11 = n11;
- }
-
- public void setToIdentity ()
- {
- m00 = m11 = 1;
- m01 = m02 = m10 = m12 = 0;
- type = TYPE_IDENTITY;
- }
-
- public void setToTranslation (double tx, double ty)
- {
- m00 = m11 = 1;
- m01 = m10 = 0;
- m02 = tx;
- m12 = ty;
- type = TYPE_TRANSLATION;
- }
-
- public void setToRotation (double theta)
- {
- double c = Math.cos (theta);
- double s = Math.sin (theta);
-
- m00 = c;
- m01 = -s;
- m02 = 0;
- m10 = s;
- m11 = c;
- m12 = 0;
- type = TYPE_GENERAL_ROTATION;
- }
-
- public void setToScale (double sx, double sy)
- {
- m00 = sx;
- m01 = m02 = m10 = m12 = 0;
- m11 = sy;
- type = (sx == sy) ? TYPE_UNIFORM_SCALE : TYPE_GENERAL_SCALE;
- }
-
- public void setToShear (double shx, double shy)
- {
- m00 = m11 = 1;
- m01 = shx;
- m10 = shy;
- m02 = m12 = 0;
- type = 0; // FIXME
- }
-
- public void setTransform (AffineTransform tx)
- {
- m00 = tx.m00;
- m01 = tx.m01;
- m02 = tx.m02;
- m10 = tx.m10;
- m11 = tx.m11;
- m12 = tx.m12;
- type = tx.type;
- }
-
- public void setTransform (double m00, double m10, double m01,
- double m11, double m02, double m12)
- {
- this.m00 = m00;
- this.m10 = m10;
- this.m01 = m01;
- this.m11 = m11;
- this.m02 = m02;
- this.m12 = m12;
- this.type = 0; // FIXME
- }
-
- public void concatentate (AffineTransform tx)
- {
- double n00 = m00 * tx.m00 + m01 * tx.m10;
- double n01 = m00 * tx.m01 + m01 * tx.m11;
- double n02 = m00 * tx.m02 + m01 * tx.m12 + m02;
- double n10 = m10 * tx.m00 + m11 * tx.m10;
- double n11 = m10 * tx.m01 + m11 * tx.m11;
- double n12 = m10 * tx.m02 + m11 * tx.m12 + m12;
-
- m00 = n00;
- m01 = n01;
- m02 = n02;
- m10 = n10;
- m11 = n11;
- m12 = n12;
- }
-
- public void preConcatenate (AffineTransform tx)
- {
- double n00 = tx.m00 * m00 + tx.m01 * m10;
- double n01 = tx.m00 * m01 + tx.m01 * m11;
- double n02 = tx.m00 * m02 + tx.m01 * m12 + tx.m02;
- double n10 = tx.m10 * m00 + tx.m11 * m10;
- double n11 = tx.m10 * m01 + tx.m11 * m11;
- double n12 = tx.m10 * m02 + tx.m11 * m12 + tx.m12;
-
- m00 = n00;
- m01 = n01;
- m02 = n02;
- m10 = n10;
- m11 = n11;
- m12 = n12;
- }
-
- public AffineTransform createInverse ()
- throws NoninvertibleTransformException
- {
- double det = getDeterminant ();
- if (det == 0)
- throw new NoninvertibleTransformException ("can't invert transform");
-
- double i00 = m11 / det;
- double i01 = -m10 / det;
- double i02 = 0;
- double i10 = m01 / det;
- double i11 = -m00 / det;
- double i12 = 0;
-
- return new AffineTransform (i00, i01, i02,
- i10, i11, i12);
- }
-
- public Point2D transform (Point2D src, Point2D dst)
- {
- if (dst == null)
- dst = new Point2D.Double ();
-
- // We compute and set separately to correctly overwrite if
- // src==dst.
- double x = src.getX ();
- double y = src.getY ();
- double nx = m00 * x + m01 * y + m02;
- double ny = m10 * x + m11 * y + m12;
-
- dst.setLocation (nx, ny);
-
- return dst;
- }
-
- public void transform (Point2D[] src, int srcOff,
- Point2D[] dst, int dstOff,
- int num)
- {
- while (num-- > 0)
- {
- dst[dstOff] = transform (src[srcOff], dst[dstOff]);
- ++srcOff;
- ++dstOff;
- }
- }
-
- public void transform (float[] srcPts, int srcOff,
- float[] dstPts, int dstOff,
- int num)
- {
- while (num-- > 0)
- {
- float x = srcPts[srcOff];
- float y = srcPts[srcOff + 1];
- srcOff += 2;
- float nx = (float) (m00 * x + m01 * y + m02);
- float ny = (float) (m10 * x + m10 * y + m12);
- dstPts[dstOff] = nx;
- dstPts[dstOff + 1] = ny;
- dstOff += 2;
- }
- }
-
- public void transform (double[] srcPts, int srcOff,
- double[] dstPts, int dstOff,
- int num)
- {
- while (num-- > 0)
- {
- double x = srcPts[srcOff];
- double y = srcPts[srcOff + 1];
- srcOff += 2;
- double nx = m00 * x + m01 * y + m02;
- double ny = m10 * x + m10 * y + m12;
- dstPts[dstOff] = nx;
- dstPts[dstOff + 1] = ny;
- dstOff += 2;
- }
- }
-
- public void transform (float[] srcPts, int srcOff,
- double[] dstPts, int dstOff,
- int num)
- {
- while (num-- > 0)
- {
- float x = srcPts[srcOff];
- float y = srcPts[srcOff + 1];
- srcOff += 2;
- double nx = m00 * x + m01 * y + m02;
- double ny = m10 * x + m10 * y + m12;
- dstPts[dstOff] = nx;
- dstPts[dstOff + 1] = ny;
- dstOff += 2;
- }
- }
-
- public void transform (double[] srcPts, int srcOff,
- float[] dstPts, int dstOff,
- int num)
- {
- while (num-- > 0)
- {
- double x = srcPts[srcOff];
- double y = srcPts[srcOff + 1];
- srcOff += 2;
- float nx = (float) (m00 * x + m01 * y + m02);
- float ny = (float) (m10 * x + m10 * y + m12);
- dstPts[dstOff] = nx;
- dstPts[dstOff + 1] = ny;
- dstOff += 2;
- }
- }
-
- public Point2D inverseTransform (Point2D src, Point2D dst)
- throws NoninvertibleTransformException
- {
- double det = getDeterminant ();
- if (det == 0)
- throw new NoninvertibleTransformException ("couldn't invert transform");
-
- if (dst == null)
- dst = new Point2D.Double ();
- double x = src.getX ();
- double y = src.getY ();
- double nx = (m11 * x + - m10 * y) / det;
- double ny = (m01 * x + - m00 * y) / det;
- dst.setLocation (nx, ny);
- return dst;
- }
-
- public void inverseTransform (double[] srcPts, int srcOff,
- double[] dstPts, int dstOff,
- int num)
- throws NoninvertibleTransformException
- {
- double det = getDeterminant ();
- if (det == 0)
- throw new NoninvertibleTransformException ("couldn't invert transform");
-
- while (num-- > 0)
- {
- double x = srcPts[srcOff];
- double y = srcPts[srcOff + 1];
- double nx = (m11 * x + - m10 * y) / det;
- double ny = (m01 * x + - m00 * y) / det;
- dstPts[dstOff] = nx;
- dstPts[dstOff + 1] = ny;
- dstOff += 2;
- srcOff += 2;
- }
- }
-
- public Point2D deltaTransform (Point2D src, Point2D dst)
- {
- if (dst == null)
- dst = new Point2D.Double ();
- double x = src.getX ();
- double y = src.getY ();
- double nx = m00 * x + m01 * y;
- double ny = m10 * x + m11 * y;
- dst.setLocation (nx, ny);
- return dst;
- }
-
- public void deltaTransform (double[] srcPts, int srcOff,
- double[] dstPts, int dstOff,
- int num)
- {
- while (num-- > 0)
- {
- double x = srcPts[srcOff];
- double y = srcPts[srcOff + 1];
- double nx = m00 * x + m01 * y;
- double ny = m10 * x + m11 * y;
- dstPts[dstOff] = nx;
- dstPts[dstOff + 1] = ny;
- dstOff += 2;
- srcOff += 2;
- }
- }
-
- public Shape createTransformedShape (Shape pSrc)
- {
- // FIXME
- return null;
- }
-
- public String toString ()
- {
- // FIXME
- return null;
- }
-
- public boolean isIdentity ()
- {
- return (m00 == 1 && m01 == 0 && m02 == 0
- && m10 == 0 && m11 == 1 && m12 == 0);
- }
-
- public Object clone ()
- {
- return new AffineTransform (this);
- }
-
- public int hashCode ()
- {
- // FIXME
- return 23;
- }
-
- public boolean equals (Object obj)
- {
- if (! (obj instanceof AffineTransform))
- return false;
- AffineTransform t = (AffineTransform) obj;
- return (m00 == t.m00 && m01 == t.m01 && m02 == t.m02
- && m10 == t.m10 && m11 == t.m11 && m12 == t.m12);
- }
-
- // This iterator is used to apply an AffineTransform to some other
- // iterator. It is not private because we want to be able to access
- // it from the rest of this package.
- class Iterator implements PathIterator
- {
- // The iterator we are applied to.
- private PathIterator subIterator;
-
- public Iterator (PathIterator subIterator)
- {
- this.subIterator = subIterator;
- }
-
- public int currentSegment (double[] coords)
- {
- int r = subIterator.currentSegment (coords);
- int count = 0;
-
- switch (r)
- {
- case SEG_CUBICTO:
- count = 3;
- break;
-
- case SEG_QUADTO:
- count = 2;
- break;
-
- case SEG_LINETO:
- case SEG_MOVETO:
- count = 1;
- break;
-
- default:
- // Error. But how to report?
- case SEG_CLOSE:
- break;
- }
-
- transform (coords, 0, coords, 0, count);
-
- return r;
- }
-
- public int currentSegment (float[] coords)
- {
- int r = subIterator.currentSegment (coords);
- int count = 0;
-
- switch (r)
- {
- case SEG_CUBICTO:
- count = 3;
- break;
-
- case SEG_QUADTO:
- count = 2;
- break;
-
- case SEG_LINETO:
- case SEG_MOVETO:
- count = 1;
- break;
-
- default:
- // Error. But how to report?
- case SEG_CLOSE:
- break;
- }
-
- transform (coords, 0, coords, 0, count);
-
- return r;
- }
-
- public int getWindingRule ()
- {
- return subIterator.getWindingRule ();
- }
-
- public boolean isDone ()
- {
- return subIterator.isDone ();
- }
-
- public void next ()
- {
- subIterator.next ();
- }
- }
-
- private double m00, m01, m02;
- private double m10, m11, m12;
- private int type;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-14 16:10:32 +0000