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diff --git a/libjava/classpath/java/awt/geom/RoundRectangle2D.java b/libjava/classpath/java/awt/geom/RoundRectangle2D.java
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-/* RoundRectangle2D.java -- represents a rectangle with rounded corners
- Copyright (C) 2000, 2002, 2003, 2004, 2006, Free Software Foundation
-
-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 java.awt.geom;
-
-
-
-/** This class implements a rectangle with rounded corners.
- * @author Tom Tromey (tromey@cygnus.com)
- * @date December 3, 2000
- */
-public abstract class RoundRectangle2D extends RectangularShape
-{
- /**
- * Return the arc height of this round rectangle. The arc height and width
- * control the roundness of the corners of the rectangle.
- *
- * @return The arc height.
- *
- * @see #getArcWidth()
- */
- public abstract double getArcHeight();
-
- /**
- * Return the arc width of this round rectangle. The arc width and height
- * control the roundness of the corners of the rectangle.
- *
- * @return The arc width.
- *
- * @see #getArcHeight()
- */
- public abstract double getArcWidth();
-
- /**
- * Set the values of this round rectangle.
- *
- * @param x The x coordinate
- * @param y The y coordinate
- * @param w The width
- * @param h The height
- * @param arcWidth The arc width
- * @param arcHeight The arc height
- */
- public abstract void setRoundRect(double x, double y, double w, double h,
- double arcWidth, double arcHeight);
-
- /**
- * Create a RoundRectangle2D. This is protected because this class
- * is abstract and cannot be instantiated.
- */
- protected RoundRectangle2D()
- {
- }
-
- /**
- * Return true if this object contains the specified point.
- * @param x The x coordinate
- * @param y The y coordinate
- */
- public boolean contains(double x, double y)
- {
- double mx = getX();
- double mw = getWidth();
- if (x < mx || x >= mx + mw)
- return false;
- double my = getY();
- double mh = getHeight();
- if (y < my || y >= my + mh)
- return false;
-
- // Now check to see if the point is in range of an arc.
- double dy = Math.min(Math.abs(my - y), Math.abs(my + mh - y));
- double dx = Math.min(Math.abs(mx - x), Math.abs(mx + mw - x));
-
- // The arc dimensions are that of the corresponding ellipse
- // thus a 90 degree segment is half of that.
- double aw = getArcWidth() / 2.0;
- double ah = getArcHeight() / 2.0;
- if (dx > aw || dy > ah)
- return true;
-
- // At this point DX represents the distance from the nearest edge
- // of the rectangle. But we want to transform it to represent the
- // scaled distance from the center of the ellipse that forms the
- // arc. Hence this code:
- dy = (ah - dy) / ah;
- dx = (aw - dx) / aw;
-
- return dx * dx + dy * dy <= 1.0;
- }
-
- /**
- * Return true if this object contains the specified rectangle
- * @param x The x coordinate
- * @param y The y coordinate
- * @param w The width
- * @param h The height
- */
- public boolean contains(double x, double y, double w, double h)
- {
- // We have to check all four points here (for ordinary rectangles
- // we can just check opposing corners).
- return (contains(x, y) && contains(x, y + h) && contains(x + w, y + h)
- && contains(x + w, y));
- }
-
- /**
- * Return a new path iterator which iterates over this rectangle.
- *
- * @param at An affine transform to apply to the object
- */
- public PathIterator getPathIterator(final AffineTransform at)
- {
- double arcW = Math.min(getArcWidth(), getWidth());
- double arcH = Math.min(getArcHeight(), getHeight());
-
- // check for special cases...
- if (arcW <= 0 || arcH <= 0)
- {
- Rectangle2D r = new Rectangle2D.Double(getX(), getY(), getWidth(),
- getHeight());
- return r.getPathIterator(at);
- }
- else if (arcW >= getWidth() && arcH >= getHeight())
- {
- Ellipse2D e = new Ellipse2D.Double(getX(), getY(), getWidth(),
- getHeight());
- return e.getPathIterator(at);
- }
-
- // otherwise return the standard case...
- return new PathIterator()
- {
- double x = getX();
- double y = getY();
- double w = getWidth();
- double h = getHeight();
- double arcW = Math.min(getArcWidth(), w);
- double arcH = Math.min(getArcHeight(), h);
- Arc2D.Double arc = new Arc2D.Double();
- PathIterator corner;
- int step = -1;
-
- public int currentSegment(double[] coords)
- {
- if (corner != null) // steps 1, 3, 5 and 7
- {
- int r = corner.currentSegment(coords);
- if (r == SEG_MOVETO)
- r = SEG_LINETO;
- return r;
- }
- if (step == -1)
- {
- // move to the start position
- coords[0] = x + w - arcW / 2;
- coords[1] = y;
- }
- else if (step == 0)
- {
- // top line
- coords[0] = x + arcW / 2;
- coords[1] = y;
- }
- else if (step == 2)
- {
- // left line
- coords[0] = x;
- coords[1] = y + h - arcH / 2;
- }
- else if (step == 4)
- {
- // bottom line
- coords[0] = x + w - arcW / 2;
- coords[1] = y + h;
- }
- else if (step == 6)
- {
- // right line
- coords[0] = x + w;
- coords[1] = y + arcH / 2;
- }
- if (at != null)
- at.transform(coords, 0, coords, 0, 1);
- return step == -1 ? SEG_MOVETO : SEG_LINETO;
- }
-
- public int currentSegment(float[] coords) {
- if (corner != null) // steps 1, 3, 5 and 7
- {
- int r = corner.currentSegment(coords);
- if (r == SEG_MOVETO)
- r = SEG_LINETO;
- return r;
- }
- if (step == -1)
- {
- // move to the start position
- coords[0] = (float) (x + w - arcW / 2);
- coords[1] = (float) y;
- }
- else if (step == 0)
- {
- // top line
- coords[0] = (float) (x + arcW / 2);
- coords[1] = (float) y;
- }
- else if (step == 2)
- {
- // left line
- coords[0] = (float) x;
- coords[1] = (float) (y + h - arcH / 2);
- }
- else if (step == 4)
- {
- // bottom line
- coords[0] = (float) (x + w - arcW / 2);
- coords[1] = (float) (y + h);
- }
- else if (step == 6)
- {
- // right line
- coords[0] = (float) (x + w);
- coords[1] = (float) (y + arcH / 2);
- }
- if (at != null)
- at.transform(coords, 0, coords, 0, 1);
- return step == -1 ? SEG_MOVETO : SEG_LINETO;
- }
-
- public int getWindingRule() {
- return WIND_NON_ZERO;
- }
-
- public boolean isDone() {
- return step >= 8;
- }
-
- public void next()
- {
- if (corner != null)
- {
- corner.next();
- if (corner.isDone())
- {
- corner = null;
- step++;
- }
- }
- else
- {
- step++;
- if (step == 1)
- {
- // create top left corner
- arc.setArc(x, y, arcW, arcH, 90, 90, Arc2D.OPEN);
- corner = arc.getPathIterator(at);
- }
- else if (step == 3)
- {
- // create bottom left corner
- arc.setArc(x, y + h - arcH, arcW, arcH, 180, 90,
- Arc2D.OPEN);
- corner = arc.getPathIterator(at);
- }
- else if (step == 5)
- {
- // create bottom right corner
- arc.setArc(x + w - arcW, y + h - arcH, arcW, arcH, 270, 90,
- Arc2D.OPEN);
- corner = arc.getPathIterator(at);
- }
- else if (step == 7)
- {
- // create top right corner
- arc.setArc(x + w - arcW, y, arcW, arcH, 0, 90, Arc2D.OPEN);
- corner = arc.getPathIterator(at);
- }
- }
- }
- };
- }
-
- /**
- * Return true if the given rectangle intersects this shape.
- * @param x The x coordinate
- * @param y The y coordinate
- * @param w The width
- * @param h The height
- */
- public boolean intersects(double x, double y, double w, double h)
- {
- // Check if any corner is within the rectangle
- return (contains(x, y) || contains(x, y + h) || contains(x + w, y + h)
- || contains(x + w, y));
- }
-
- /**
- * Set the boundary of this round rectangle.
- * @param x The x coordinate
- * @param y The y coordinate
- * @param w The width
- * @param h The height
- */
- public void setFrame(double x, double y, double w, double h)
- {
- // This is a bit lame.
- setRoundRect(x, y, w, h, getArcWidth(), getArcHeight());
- }
-
- /**
- * Set the values of this round rectangle to be the same as those
- * of the argument.
- * @param rr The round rectangle to copy
- */
- public void setRoundRect(RoundRectangle2D rr)
- {
- setRoundRect(rr.getX(), rr.getY(), rr.getWidth(), rr.getHeight(),
- rr.getArcWidth(), rr.getArcHeight());
- }
-
- /**
- * A subclass of RoundRectangle which keeps its parameters as
- * doubles.
- */
- public static class Double extends RoundRectangle2D
- {
- /** The height of the corner arc. */
- public double archeight;
-
- /** The width of the corner arc. */
- public double arcwidth;
-
- /** The x coordinate of this object. */
- public double x;
-
- /** The y coordinate of this object. */
- public double y;
-
- /** The width of this object. */
- public double width;
-
- /** The height of this object. */
- public double height;
-
- /**
- * Construct a new instance, with all parameters set to 0.
- */
- public Double()
- {
- }
-
- /**
- * Construct a new instance with the given arguments.
- * @param x The x coordinate
- * @param y The y coordinate
- * @param w The width
- * @param h The height
- * @param arcWidth The arc width
- * @param arcHeight The arc height
- */
- public Double(double x, double y, double w, double h, double arcWidth,
- double arcHeight)
- {
- this.x = x;
- this.y = y;
- this.width = w;
- this.height = h;
- this.arcwidth = arcWidth;
- this.archeight = arcHeight;
- }
-
- public double getArcHeight()
- {
- return archeight;
- }
-
- public double getArcWidth()
- {
- return arcwidth;
- }
-
- public Rectangle2D getBounds2D()
- {
- return new Rectangle2D.Double(x, y, width, height);
- }
-
- public double getX()
- {
- return x;
- }
-
- public double getY()
- {
- return y;
- }
-
- public double getWidth()
- {
- return width;
- }
-
- public double getHeight()
- {
- return height;
- }
-
- public boolean isEmpty()
- {
- return width <= 0 || height <= 0;
- }
-
- public void setRoundRect(double x, double y, double w, double h,
- double arcWidth, double arcHeight)
- {
- this.x = x;
- this.y = y;
- this.width = w;
- this.height = h;
- this.arcwidth = arcWidth;
- this.archeight = arcHeight;
- }
- } // class Double
-
- /**
- * A subclass of RoundRectangle which keeps its parameters as
- * floats.
- */
- public static class Float extends RoundRectangle2D
- {
- /** The height of the corner arc. */
- public float archeight;
-
- /** The width of the corner arc. */
- public float arcwidth;
-
- /** The x coordinate of this object. */
- public float x;
-
- /** The y coordinate of this object. */
- public float y;
-
- /** The width of this object. */
- public float width;
-
- /** The height of this object. */
- public float height;
-
- /**
- * Construct a new instance, with all parameters set to 0.
- */
- public Float()
- {
- }
-
- /**
- * Construct a new instance with the given arguments.
- * @param x The x coordinate
- * @param y The y coordinate
- * @param w The width
- * @param h The height
- * @param arcWidth The arc width
- * @param arcHeight The arc height
- */
- public Float(float x, float y, float w, float h, float arcWidth,
- float arcHeight)
- {
- this.x = x;
- this.y = y;
- this.width = w;
- this.height = h;
- this.arcwidth = arcWidth;
- this.archeight = arcHeight;
- }
-
- public double getArcHeight()
- {
- return archeight;
- }
-
- public double getArcWidth()
- {
- return arcwidth;
- }
-
- public Rectangle2D getBounds2D()
- {
- return new Rectangle2D.Float(x, y, width, height);
- }
-
- public double getX()
- {
- return x;
- }
-
- public double getY()
- {
- return y;
- }
-
- public double getWidth()
- {
- return width;
- }
-
- public double getHeight()
- {
- return height;
- }
-
- public boolean isEmpty()
- {
- return width <= 0 || height <= 0;
- }
-
- /**
- * Sets the dimensions for this rounded rectangle.
- *
- * @param x the x-coordinate of the top left corner.
- * @param y the y-coordinate of the top left corner.
- * @param w the width of the rectangle.
- * @param h the height of the rectangle.
- * @param arcWidth the arc width.
- * @param arcHeight the arc height.
- *
- * @see #setRoundRect(double, double, double, double, double, double)
- */
- public void setRoundRect(float x, float y, float w, float h,
- float arcWidth, float arcHeight)
- {
- this.x = x;
- this.y = y;
- this.width = w;
- this.height = h;
- this.arcwidth = arcWidth;
- this.archeight = arcHeight;
- }
-
- public void setRoundRect(double x, double y, double w, double h,
- double arcWidth, double arcHeight)
- {
- this.x = (float) x;
- this.y = (float) y;
- this.width = (float) w;
- this.height = (float) h;
- this.arcwidth = (float) arcWidth;
- this.archeight = (float) arcHeight;
- }
- } // class Float
-} // class RoundRectangle2D
generated by cgit v1.1 at 2025-03-22 18:30:02 +0000