ProxyGraphics2D.java

/*
 * Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */

package sun.print;

import java.util.Map;

import java.awt.Color;
import java.awt.Composite;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.font.FontRenderContext;
import java.awt.Graphics;
import java.awt.GraphicsConfiguration;
import java.awt.Image;
import java.awt.Paint;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.Stroke;
import java.awt.RenderingHints;
import java.awt.RenderingHints.Key;

import java.awt.font.GlyphVector;

import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.geom.NoninvertibleTransformException;
import java.awt.image.BufferedImage;
import java.awt.image.BufferedImageOp;
import java.awt.image.ImageObserver;
import java.awt.image.RenderedImage;
import java.awt.image.renderable.RenderContext;
import java.awt.image.renderable.RenderableImage;
import java.awt.print.PrinterGraphics;
import java.awt.print.PrinterJob;

import java.text.AttributedCharacterIterator;

public class ProxyGraphics2D extends Graphics2D implements PrinterGraphics {

    /**
     * Drawing methods will be forwarded to this object.
     */
    Graphics2D mGraphics;

    /**
     * The PrinterJob controlling the current printing.
     */
    PrinterJob mPrinterJob;

    /**
     * The new ProxyGraphics2D will forward all graphics
     * calls to 'graphics'.
     */
    public ProxyGraphics2D(Graphics2D graphics, PrinterJob printerJob) {
        mGraphics = graphics;
        mPrinterJob = printerJob;
    }

    /**
     * Return the Graphics2D object that does the drawing
     * for this instance.
     */
    public Graphics2D getDelegate() {
        return mGraphics;
    }

    /**
     * Set the Graphics2D instance which will do the
     * drawing.
     */
    public void setDelegate(Graphics2D graphics) {
        mGraphics = graphics;
    }

    public PrinterJob getPrinterJob() {
        return mPrinterJob;
    }

    /**
     * Returns the device configuration associated with this Graphics2D.
     */
    public GraphicsConfiguration getDeviceConfiguration() {
        return ((RasterPrinterJob)mPrinterJob).getPrinterGraphicsConfig();
    }

/* The Delegated Graphics Methods */

    /**
     * Creates a new {@code Graphics} object that is
     * a copy of this {@code Graphics} object.
     * @return     a new graphics context that is a copy of
     *                       this graphics context.
     * @since      1.0
     */
    public Graphics create() {
        return new ProxyGraphics2D((Graphics2D) mGraphics.create(),
                                   mPrinterJob);
    }

    /**
     * Translates the origin of the graphics context to the point
     * (<i>x</i>,&nbsp;<i>y</i>) in the current coordinate system.
     * Modifies this graphics context so that its new origin corresponds
     * to the point (<i>x</i>,&nbsp;<i>y</i>) in this graphics context's
     * original coordinate system.  All coordinates used in subsequent
     * rendering operations on this graphics context will be relative
     * to this new origin.
     * @param  x   the <i>x</i> coordinate.
     * @param  y   the <i>y</i> coordinate.
     * @since   1.0
     */
    public void translate(int x, int y) {
        mGraphics.translate(x, y);
    }

    /**
     * Concatenates the current transform of this Graphics2D with a
     * translation transformation.
     * This is equivalent to calling transform(T), where T is an
     * AffineTransform represented by the following matrix:
     * <pre>
     *          [   1    0    tx  ]
     *          [   0    1    ty  ]
     *          [   0    0    1   ]
     * </pre>
     */
    public void translate(double tx, double ty) {
        mGraphics.translate(tx, ty);
    }

    /**
     * Concatenates the current transform of this Graphics2D with a
     * rotation transformation.
     * This is equivalent to calling transform(R), where R is an
     * AffineTransform represented by the following matrix:
     * <pre>
     *          [   cos(theta)    -sin(theta)    0   ]
     *          [   sin(theta)     cos(theta)    0   ]
     *          [       0              0         1   ]
     * </pre>
     * Rotating with a positive angle theta rotates points on the positive
     * x axis toward the positive y axis.
     * @param theta The angle of rotation in radians.
     */
    public void rotate(double theta) {
        mGraphics.rotate(theta);
    }

    /**
     * Concatenates the current transform of this Graphics2D with a
     * translated rotation transformation.
     * This is equivalent to the following sequence of calls:
     * <pre>
     *          translate(x, y);
     *          rotate(theta);
     *          translate(-x, -y);
     * </pre>
     * Rotating with a positive angle theta rotates points on the positive
     * x axis toward the positive y axis.
     * @param theta The angle of rotation in radians.
     * @param x The x coordinate of the origin of the rotation
     * @param y The x coordinate of the origin of the rotation
     */
    public void rotate(double theta, double x, double y) {
        mGraphics.rotate(theta, x, y);
    }

    /**
     * Concatenates the current transform of this Graphics2D with a
     * scaling transformation.
     * This is equivalent to calling transform(S), where S is an
     * AffineTransform represented by the following matrix:
     * <pre>
     *          [   sx   0    0   ]
     *          [   0    sy   0   ]
     *          [   0    0    1   ]
     * </pre>
     */
    public void scale(double sx, double sy) {
        mGraphics.scale(sx, sy);
    }

    /**
     * Concatenates the current transform of this Graphics2D with a
     * shearing transformation.
     * This is equivalent to calling transform(SH), where SH is an
     * AffineTransform represented by the following matrix:
     * <pre>
     *          [   1   shx   0   ]
     *          [  shy   1    0   ]
     *          [   0    0    1   ]
     * </pre>
     * @param shx The factor by which coordinates are shifted towards the
     * positive X axis direction according to their Y coordinate
     * @param shy The factor by which coordinates are shifted towards the
     * positive Y axis direction according to their X coordinate
     */
    public void shear(double shx, double shy) {
        mGraphics.shear(shx, shy);
    }

    /**
     * Gets this graphics context's current color.
     * @return    this graphics context's current color.
     * @see       java.awt.Color
     * @see       java.awt.Graphics#setColor
     * @since     1.0
     */
    public Color getColor() {
        return mGraphics.getColor();
    }

    /**
     * Sets this graphics context's current color to the specified
     * color. All subsequent graphics operations using this graphics
     * context use this specified color.
     * @param     c   the new rendering color.
     * @see       java.awt.Color
     * @see       java.awt.Graphics#getColor
     * @since     1.0
     */
    public void setColor(Color c) {
        mGraphics.setColor(c);
    }

    /**
     * Sets the paint mode of this graphics context to overwrite the
     * destination with this graphics context's current color.
     * This sets the logical pixel operation function to the paint or
     * overwrite mode.  All subsequent rendering operations will
     * overwrite the destination with the current color.
     * @since   1.0
     */
    public void setPaintMode() {
        mGraphics.setPaintMode();
    }

    /**
     * Sets the paint mode of this graphics context to alternate between
     * this graphics context's current color and the new specified color.
     * This specifies that logical pixel operations are performed in the
     * XOR mode, which alternates pixels between the current color and
     * a specified XOR color.
     * <p>
     * When drawing operations are performed, pixels which are the
     * current color are changed to the specified color, and vice versa.
     * <p>
     * Pixels that are of colors other than those two colors are changed
     * in an unpredictable but reversible manner; if the same figure is
     * drawn twice, then all pixels are restored to their original values.
     * @param     c1 the XOR alternation color
     * @since     1.0
     */
    public void setXORMode(Color c1) {
        mGraphics.setXORMode(c1);
    }

    /**
     * Gets the current font.
     * @return    this graphics context's current font.
     * @see       java.awt.Font
     * @see       java.awt.Graphics#setFont
     * @since     1.0
     */
    public Font getFont() {
        return mGraphics.getFont();
    }

    /**
     * Sets this graphics context's font to the specified font.
     * All subsequent text operations using this graphics context
     * use this font.
     * @param  font   the font.
     * @see     java.awt.Graphics#getFont
     * @see     java.awt.Graphics#drawChars(char[], int, int, int, int)
     * @see     java.awt.Graphics#drawString(String, int, int)
     * @see     java.awt.Graphics#drawBytes(byte[], int, int, int, int)
     * @since   1.0
    */
    public void setFont(Font font) {
        mGraphics.setFont(font);
    }

    /**
     * Gets the font metrics for the specified font.
     * @return    the font metrics for the specified font.
     * @param     f the specified font
     * @see       java.awt.Graphics#getFont
     * @see       java.awt.FontMetrics
     * @see       java.awt.Graphics#getFontMetrics()
     * @since     1.0
     */
    public FontMetrics getFontMetrics(Font f) {
        return mGraphics.getFontMetrics(f);
    }

    /**
    * Get the rendering context of the font
    * within this Graphics2D context.
    */
    public FontRenderContext getFontRenderContext() {
        return mGraphics.getFontRenderContext();
    }

    /**
     * Returns the bounding rectangle of the current clipping area.
     * The coordinates in the rectangle are relative to the coordinate
     * system origin of this graphics context.
     * @return      the bounding rectangle of the current clipping area.
     * @see         java.awt.Graphics#getClip
     * @see         java.awt.Graphics#clipRect
     * @see         java.awt.Graphics#setClip(int, int, int, int)
     * @see         java.awt.Graphics#setClip(Shape)
     * @since       1.1
     */
    public Rectangle getClipBounds() {
        return mGraphics.getClipBounds();
    }


    /**
     * Intersects the current clip with the specified rectangle.
     * The resulting clipping area is the intersection of the current
     * clipping area and the specified rectangle.
     * This method can only be used to make the current clip smaller.
     * To set the current clip larger, use any of the setClip methods.
     * Rendering operations have no effect outside of the clipping area.
     * @param x the x coordinate of the rectangle to intersect the clip with
     * @param y the y coordinate of the rectangle to intersect the clip with
     * @param width the width of the rectangle to intersect the clip with
     * @param height the height of the rectangle to intersect the clip with
     * @see #setClip(int, int, int, int)
     * @see #setClip(Shape)
     */
    public void clipRect(int x, int y, int width, int height) {
        mGraphics.clipRect(x, y, width, height);
    }


    /**
     * Sets the current clip to the rectangle specified by the given
     * coordinates.
     * Rendering operations have no effect outside of the clipping area.
     * @param       x the <i>x</i> coordinate of the new clip rectangle.
     * @param       y the <i>y</i> coordinate of the new clip rectangle.
     * @param       width the width of the new clip rectangle.
     * @param       height the height of the new clip rectangle.
     * @see         java.awt.Graphics#clipRect
     * @see         java.awt.Graphics#setClip(Shape)
     * @since       1.1
     */
    public void setClip(int x, int y, int width, int height) {
        mGraphics.setClip(x, y, width, height);
    }

    /**
     * Gets the current clipping area.
     * @return      a {@code Shape} object representing the
     *                      current clipping area.
     * @see         java.awt.Graphics#getClipBounds
     * @see         java.awt.Graphics#clipRect
     * @see         java.awt.Graphics#setClip(int, int, int, int)
     * @see         java.awt.Graphics#setClip(Shape)
     * @since       1.1
     */
    public Shape getClip() {
        return mGraphics.getClip();
    }


    /**
     * Sets the current clipping area to an arbitrary clip shape.
     * Not all objects which implement the {@code Shape}
     * interface can be used to set the clip.  The only
     * {@code Shape} objects which are guaranteed to be
     * supported are {@code Shape} objects which are
     * obtained via the {@code getClip} method and via
     * {@code Rectangle} objects.
     * @see         java.awt.Graphics#getClip()
     * @see         java.awt.Graphics#clipRect
     * @see         java.awt.Graphics#setClip(int, int, int, int)
     * @since       1.1
     */
    public void setClip(Shape clip) {
        mGraphics.setClip(clip);
    }


    /**
     * Copies an area of the component by a distance specified by
     * {@code dx} and {@code dy}. From the point specified
     * by {@code x} and {@code y}, this method
     * copies downwards and to the right.  To copy an area of the
     * component to the left or upwards, specify a negative value for
     * {@code dx} or {@code dy}.
     * If a portion of the source rectangle lies outside the bounds
     * of the component, or is obscured by another window or component,
     * {@code copyArea} will be unable to copy the associated
     * pixels. The area that is omitted can be refreshed by calling
     * the component's {@code paint} method.
     * @param       x the <i>x</i> coordinate of the source rectangle.
     * @param       y the <i>y</i> coordinate of the source rectangle.
     * @param       width the width of the source rectangle.
     * @param       height the height of the source rectangle.
     * @param       dx the horizontal distance to copy the pixels.
     * @param       dy the vertical distance to copy the pixels.
     * @since       1.0
     */
    public void copyArea(int x, int y, int width, int height,
                         int dx, int dy) {
        mGraphics.copyArea(x, y, width, height, dx, dy);
    }

    /**
     * Draws a line, using the current color, between the points
     * <code>(x1,&nbsp;y1)</code> and <code>(x2,&nbsp;y2)</code>
     * in this graphics context's coordinate system.
     * @param   x1  the first point's <i>x</i> coordinate.
     * @param   y1  the first point's <i>y</i> coordinate.
     * @param   x2  the second point's <i>x</i> coordinate.
     * @param   y2  the second point's <i>y</i> coordinate.
     * @since   1.0
     */
    public void drawLine(int x1, int y1, int x2, int y2) {
        mGraphics.drawLine(x1, y1, x2, y2);
    }


    /**
     * Fills the specified rectangle.
     * The left and right edges of the rectangle are at
     * {@code x} and <code>x&nbsp;+&nbsp;width&nbsp;-&nbsp;1</code>.
     * The top and bottom edges are at
     * {@code y} and <code>y&nbsp;+&nbsp;height&nbsp;-&nbsp;1</code>.
     * The resulting rectangle covers an area
     * {@code width} pixels wide by
     * {@code height} pixels tall.
     * The rectangle is filled using the graphics context's current color.
     * @param         x   the <i>x</i> coordinate
     *                         of the rectangle to be filled.
     * @param         y   the <i>y</i> coordinate
     *                         of the rectangle to be filled.
     * @param         width   the width of the rectangle to be filled.
     * @param         height   the height of the rectangle to be filled.
     * @see           java.awt.Graphics#fillRect
     * @see           java.awt.Graphics#clearRect
     * @since         1.0
     */
    public void fillRect(int x, int y, int width, int height) {
        mGraphics.fillRect(x, y, width, height);
    }

    /**
     * Clears the specified rectangle by filling it with the background
     * color of the current drawing surface. This operation does not
     * use the current paint mode.
     * <p>
     * Beginning with Java&nbsp;1.1, the background color
     * of offscreen images may be system dependent. Applications should
     * use {@code setColor} followed by {@code fillRect} to
     * ensure that an offscreen image is cleared to a specific color.
     * @param       x the <i>x</i> coordinate of the rectangle to clear.
     * @param       y the <i>y</i> coordinate of the rectangle to clear.
     * @param       width the width of the rectangle to clear.
     * @param       height the height of the rectangle to clear.
     * @see         java.awt.Graphics#fillRect(int, int, int, int)
     * @see         java.awt.Graphics#drawRect
     * @see         java.awt.Graphics#setColor(java.awt.Color)
     * @see         java.awt.Graphics#setPaintMode
     * @see         java.awt.Graphics#setXORMode(java.awt.Color)
     * @since       1.0
     */
    public void clearRect(int x, int y, int width, int height) {
        mGraphics.clearRect(x, y, width, height);
    }

    /**
     * Draws an outlined round-cornered rectangle using this graphics
     * context's current color. The left and right edges of the rectangle
     * are at {@code x} and <code>x&nbsp;+&nbsp;width</code>,
     * respectively. The top and bottom edges of the rectangle are at
     * {@code y} and <code>y&nbsp;+&nbsp;height</code>.
     * @param      x the <i>x</i> coordinate of the rectangle to be drawn.
     * @param      y the <i>y</i> coordinate of the rectangle to be drawn.
     * @param      width the width of the rectangle to be drawn.
     * @param      height the height of the rectangle to be drawn.
     * @param      arcWidth the horizontal diameter of the arc
     *                    at the four corners.
     * @param      arcHeight the vertical diameter of the arc
     *                    at the four corners.
     * @see        java.awt.Graphics#fillRoundRect
     * @since      1.0
     */
    public void drawRoundRect(int x, int y, int width, int height,
                              int arcWidth, int arcHeight) {
        mGraphics.drawRoundRect(x, y, width, height, arcWidth, arcHeight);
    }

    /**
     * Fills the specified rounded corner rectangle with the current color.
     * The left and right edges of the rectangle
     * are at {@code x} and <code>x&nbsp;+&nbsp;width&nbsp;-&nbsp;1</code>,
     * respectively. The top and bottom edges of the rectangle are at
     * {@code y} and <code>y&nbsp;+&nbsp;height&nbsp;-&nbsp;1</code>.
     * @param       x the <i>x</i> coordinate of the rectangle to be filled.
     * @param       y the <i>y</i> coordinate of the rectangle to be filled.
     * @param       width the width of the rectangle to be filled.
     * @param       height the height of the rectangle to be filled.
     * @param       arcWidth the horizontal diameter
     *                     of the arc at the four corners.
     * @param       arcHeight the vertical diameter
     *                     of the arc at the four corners.
     * @see         java.awt.Graphics#drawRoundRect
     * @since       1.0
     */
    public void fillRoundRect(int x, int y, int width, int height,
                                       int arcWidth, int arcHeight) {
        mGraphics.fillRoundRect(x, y, width, height, arcWidth, arcHeight);
    }

    /**
     * Draws the outline of an oval.
     * The result is a circle or ellipse that fits within the
     * rectangle specified by the {@code x}, {@code y},
     * {@code width}, and {@code height} arguments.
     * <p>
     * The oval covers an area that is
     * <code>width&nbsp;+&nbsp;1</code> pixels wide
     * and <code>height&nbsp;+&nbsp;1</code> pixels tall.
     * @param       x the <i>x</i> coordinate of the upper left
     *                     corner of the oval to be drawn.
     * @param       y the <i>y</i> coordinate of the upper left
     *                     corner of the oval to be drawn.
     * @param       width the width of the oval to be drawn.
     * @param       height the height of the oval to be drawn.
     * @see         java.awt.Graphics#fillOval
     * @since       1.0
     */
    public void drawOval(int x, int y, int width, int height) {
        mGraphics.drawOval(x, y, width, height);
    }

    /**
     * Fills an oval bounded by the specified rectangle with the
     * current color.
     * @param       x the <i>x</i> coordinate of the upper left corner
     *                     of the oval to be filled.
     * @param       y the <i>y</i> coordinate of the upper left corner
     *                     of the oval to be filled.
     * @param       width the width of the oval to be filled.
     * @param       height the height of the oval to be filled.
     * @see         java.awt.Graphics#drawOval
     * @since       1.0
     */
    public void fillOval(int x, int y, int width, int height) {
        mGraphics.fillOval(x, y, width, height);
    }

    /**
     * Draws the outline of a circular or elliptical arc
     * covering the specified rectangle.
     * <p>
     * The resulting arc begins at {@code startAngle} and extends
     * for {@code arcAngle} degrees, using the current color.
     * Angles are interpreted such that 0&nbsp;degrees
     * is at the 3&nbsp;o'clock position.
     * A positive value indicates a counter-clockwise rotation
     * while a negative value indicates a clockwise rotation.
     * <p>
     * The center of the arc is the center of the rectangle whose origin
     * is (<i>x</i>,&nbsp;<i>y</i>) and whose size is specified by the
     * {@code width} and {@code height} arguments.
     * <p>
     * The resulting arc covers an area
     * <code>width&nbsp;+&nbsp;1</code> pixels wide
     * by <code>height&nbsp;+&nbsp;1</code> pixels tall.
     * @param        x the <i>x</i> coordinate of the
     *                    upper-left corner of the arc to be drawn.
     * @param        y the <i>y</i>  coordinate of the
     *                    upper-left corner of the arc to be drawn.
     * @param        width the width of the arc to be drawn.
     * @param        height the height of the arc to be drawn.
     * @param        startAngle the beginning angle.
     * @param        arcAngle the angular extent of the arc,
     *                    relative to the start angle.
     * @see         java.awt.Graphics#fillArc
     * @since       1.0
     */
    public void drawArc(int x, int y, int width, int height,
                                 int startAngle, int arcAngle) {
        mGraphics.drawArc(x, y, width, height, startAngle, arcAngle);
    }

    /**
     * Fills a circular or elliptical arc covering the specified rectangle.
     * <p>
     * The resulting arc begins at {@code startAngle} and extends
     * for {@code arcAngle} degrees.
     * Angles are interpreted such that 0&nbsp;degrees
     * is at the 3&nbsp;o'clock position.
     * A positive value indicates a counter-clockwise rotation
     * while a negative value indicates a clockwise rotation.
     * <p>
     * The center of the arc is the center of the rectangle whose origin
     * is (<i>x</i>,&nbsp;<i>y</i>) and whose size is specified by the
     * {@code width} and {@code height} arguments.
     * <p>
     * The resulting arc covers an area
     * <code>width&nbsp;+&nbsp;1</code> pixels wide
     * by <code>height&nbsp;+&nbsp;1</code> pixels tall.
     * @param        x the <i>x</i> coordinate of the
     *                    upper-left corner of the arc to be filled.
     * @param        y the <i>y</i>  coordinate of the
     *                    upper-left corner of the arc to be filled.
     * @param        width the width of the arc to be filled.
     * @param        height the height of the arc to be filled.
     * @param        startAngle the beginning angle.
     * @param        arcAngle the angular extent of the arc,
     *                    relative to the start angle.
     * @see         java.awt.Graphics#drawArc
     * @since       1.0
     */
    public void fillArc(int x, int y, int width, int height,
                        int startAngle, int arcAngle) {
        mGraphics.fillArc(x, y, width, height, startAngle, arcAngle);
    }

    /**
     * Draws a sequence of connected lines defined by
     * arrays of <i>x</i> and <i>y</i> coordinates.
     * Each pair of (<i>x</i>,&nbsp;<i>y</i>) coordinates defines a point.
     * The figure is not closed if the first point
     * differs from the last point.
     * @param       xPoints an array of <i>x</i> points
     * @param       yPoints an array of <i>y</i> points
     * @param       nPoints the total number of points
     * @see         java.awt.Graphics#drawPolygon(int[], int[], int)
     * @since       1.1
     */
    public void drawPolyline(int[] xPoints, int[] yPoints,
                             int nPoints) {
        mGraphics.drawPolyline(xPoints, yPoints, nPoints);
    }

    /**
     * Draws a closed polygon defined by
     * arrays of <i>x</i> and <i>y</i> coordinates.
     * Each pair of (<i>x</i>,&nbsp;<i>y</i>) coordinates defines a point.
     * <p>
     * This method draws the polygon defined by {@code nPoint} line
     * segments, where the first <code>nPoint&nbsp;-&nbsp;1</code>
     * line segments are line segments from
     * <code>(xPoints[i&nbsp;-&nbsp;1],&nbsp;yPoints[i&nbsp;-&nbsp;1])</code>
     * to <code>(xPoints[i],&nbsp;yPoints[i])</code>, for
     * 1&nbsp;&le;&nbsp;<i>i</i>&nbsp;&le;&nbsp;{@code nPoints}.
     * The figure is automatically closed by drawing a line connecting
     * the final point to the first point, if those points are different.
     * @param        xPoints   a an array of {@code x} coordinates.
     * @param        yPoints   a an array of {@code y} coordinates.
     * @param        nPoints   a the total number of points.
     * @see          java.awt.Graphics#fillPolygon
     * @see          java.awt.Graphics#drawPolyline
     * @since        1.0
     */
    public void drawPolygon(int[] xPoints, int[] yPoints,
                            int nPoints) {
        mGraphics.drawPolygon(xPoints, yPoints, nPoints);
    }

    /**
     * Fills a closed polygon defined by
     * arrays of <i>x</i> and <i>y</i> coordinates.
     * <p>
     * This method draws the polygon defined by {@code nPoint} line
     * segments, where the first <code>nPoint&nbsp;-&nbsp;1</code>
     * line segments are line segments from
     * <code>(xPoints[i&nbsp;-&nbsp;1],&nbsp;yPoints[i&nbsp;-&nbsp;1])</code>
     * to <code>(xPoints[i],&nbsp;yPoints[i])</code>, for
     * 1&nbsp;&le;&nbsp;<i>i</i>&nbsp;&le;&nbsp;{@code nPoints}.
     * The figure is automatically closed by drawing a line connecting
     * the final point to the first point, if those points are different.
     * <p>
     * The area inside the polygon is defined using an
     * even-odd fill rule, also known as the alternating rule.
     * @param        xPoints   a an array of {@code x} coordinates.
     * @param        yPoints   a an array of {@code y} coordinates.
     * @param        nPoints   a the total number of points.
     * @see          java.awt.Graphics#drawPolygon(int[], int[], int)
     * @since        1.0
     */
    public void fillPolygon(int[] xPoints, int[] yPoints,
                            int nPoints) {
        mGraphics.fillPolygon(xPoints, yPoints, nPoints);
    }

    /**
     * Draws the text given by the specified string, using this
     * graphics context's current font and color. The baseline of the
     * first character is at position (<i>x</i>,&nbsp;<i>y</i>) in this
     * graphics context's coordinate system.
     * @param       str      the string to be drawn.
     * @param       x        the <i>x</i> coordinate.
     * @param       y        the <i>y</i> coordinate.
     * @see         java.awt.Graphics#drawBytes
     * @see         java.awt.Graphics#drawChars
     * @since       1.0
     */
    public void drawString(String str, int x, int y) {
        mGraphics.drawString(str, x, y);
    }

    /**
     * Draws the text given by the specified iterator, using this
     * graphics context's current color. The iterator has to specify a font
     * for each character. The baseline of the
     * first character is at position (<i>x</i>,&nbsp;<i>y</i>) in this
     * graphics context's coordinate system.
     * The rendering attributes applied include the clip, transform,
     * paint or color, and composite attributes.
     * For characters in script systems such as Hebrew and Arabic,
     * the glyphs may be draw from right to left, in which case the
     * coordinate supplied is the location of the leftmost character
     * on the baseline.
     * @param iterator the iterator whose text is to be drawn
     * @param x,y the coordinates where the iterator's text should be drawn.
     * @see #setPaint
     * @see java.awt.Graphics#setColor
     * @see #setTransform
     * @see #setComposite
     * @see #setClip
     */
    public void drawString(AttributedCharacterIterator iterator,
                                    int x, int y) {
        mGraphics.drawString(iterator, x, y);
    }

    /**
     * Draws the text given by the specified iterator, using this
     * graphics context's current color. The iterator has to specify a font
     * for each character. The baseline of the
     * first character is at position (<i>x</i>,&nbsp;<i>y</i>) in this
     * graphics context's coordinate system.
     * The rendering attributes applied include the clip, transform,
     * paint or color, and composite attributes.
     * For characters in script systems such as Hebrew and Arabic,
     * the glyphs may be draw from right to left, in which case the
     * coordinate supplied is the location of the leftmost character
     * on the baseline.
     * @param iterator the iterator whose text is to be drawn
     * @param x,y the coordinates where the iterator's text should be drawn.
     * @see #setPaint
     * @see java.awt.Graphics#setColor
     * @see #setTransform
     * @see #setComposite
     * @see #setClip
     */
    public void drawString(AttributedCharacterIterator iterator,
                                    float x, float y) {
        mGraphics.drawString(iterator, x, y);
    }

    /**
     * Draws as much of the specified image as is currently available.
     * The image is drawn with its top-left corner at
     * (<i>x</i>,&nbsp;<i>y</i>) in this graphics context's coordinate
     * space. Transparent pixels in the image do not affect whatever
     * pixels are already there.
     * <p>
     * This method returns immediately in all cases, even if the
     * complete image has not yet been loaded, and it has not been dithered
     * and converted for the current output device.
     * <p>
     * If the image has not yet been completely loaded, then
     * {@code drawImage} returns {@code false}. As more of
     * the image becomes available, the process that draws the image notifies
     * the specified image observer.
     * @param    img the specified image to be drawn.
     * @param    x   the <i>x</i> coordinate.
     * @param    y   the <i>y</i> coordinate.
     * @param    observer    object to be notified as more of
     *                          the image is converted.
     * @see      java.awt.Image
     * @see      java.awt.image.ImageObserver
     * @see      java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
     * @since    1.0
     */
    public boolean drawImage(Image img, int x, int y,
                             ImageObserver observer) {

        return mGraphics.drawImage(img, x, y, observer);
    }

    /**
     * Draws as much of the specified image as has already been scaled
     * to fit inside the specified rectangle.
     * <p>
     * The image is drawn inside the specified rectangle of this
     * graphics context's coordinate space, and is scaled if
     * necessary. Transparent pixels do not affect whatever pixels
     * are already there.
     * <p>
     * This method returns immediately in all cases, even if the
     * entire image has not yet been scaled, dithered, and converted
     * for the current output device.
     * If the current output representation is not yet complete, then
     * {@code drawImage} returns {@code false}. As more of
     * the image becomes available, the process that draws the image notifies
     * the image observer by calling its {@code imageUpdate} method.
     * <p>
     * A scaled version of an image will not necessarily be
     * available immediately just because an unscaled version of the
     * image has been constructed for this output device.  Each size of
     * the image may be cached separately and generated from the original
     * data in a separate image production sequence.
     * @param    img    the specified image to be drawn.
     * @param    x      the <i>x</i> coordinate.
     * @param    y      the <i>y</i> coordinate.
     * @param    width  the width of the rectangle.
     * @param    height the height of the rectangle.
     * @param    observer    object to be notified as more of
     *                          the image is converted.
     * @see      java.awt.Image
     * @see      java.awt.image.ImageObserver
     * @see      java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
     * @since    1.0
     */
    public boolean drawImage(Image img, int x, int y,
                             int width, int height,
                             ImageObserver observer) {

        return mGraphics.drawImage(img, x, y, width, height, observer);
    }

    /**
     * Draws as much of the specified image as is currently available.
     * The image is drawn with its top-left corner at
     * (<i>x</i>,&nbsp;<i>y</i>) in this graphics context's coordinate
     * space.  Transparent pixels are drawn in the specified
     * background color.
     * <p>
     * This operation is equivalent to filling a rectangle of the
     * width and height of the specified image with the given color and then
     * drawing the image on top of it, but possibly more efficient.
     * <p>
     * This method returns immediately in all cases, even if the
     * complete image has not yet been loaded, and it has not been dithered
     * and converted for the current output device.
     * <p>
     * If the image has not yet been completely loaded, then
     * {@code drawImage} returns {@code false}. As more of
     * the image becomes available, the process that draws the image notifies
     * the specified image observer.
     * @param    img    the specified image to be drawn.
     * @param    x      the <i>x</i> coordinate.
     * @param    y      the <i>y</i> coordinate.
     * @param    bgcolor the background color to paint under the
     *                         non-opaque portions of the image.
     * @param    observer    object to be notified as more of
     *                          the image is converted.
     * @see      java.awt.Image
     * @see      java.awt.image.ImageObserver
     * @see      java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
     * @since    1.0
     */
    public boolean drawImage(Image img, int x, int y,
                             Color bgcolor,
                             ImageObserver observer) {

        if (img == null) {
            return true;
        }

        boolean result;

        if (needToCopyBgColorImage(img)) {
            BufferedImage imageCopy = getBufferedImageCopy(img, bgcolor);
            result = mGraphics.drawImage(imageCopy, x, y, null);
        } else {
            result = mGraphics.drawImage(img, x, y, bgcolor, observer);
        }

        return result;
    }

    /**
     * Draws as much of the specified image as has already been scaled
     * to fit inside the specified rectangle.
     * <p>
     * The image is drawn inside the specified rectangle of this
     * graphics context's coordinate space, and is scaled if
     * necessary. Transparent pixels are drawn in the specified
     * background color.
     * This operation is equivalent to filling a rectangle of the
     * width and height of the specified image with the given color and then
     * drawing the image on top of it, but possibly more efficient.
     * <p>
     * This method returns immediately in all cases, even if the
     * entire image has not yet been scaled, dithered, and converted
     * for the current output device.
     * If the current output representation is not yet complete then
     * {@code drawImage} returns {@code false}. As more of
     * the image becomes available, the process that draws the image notifies
     * the specified image observer.
     * <p>
     * A scaled version of an image will not necessarily be
     * available immediately just because an unscaled version of the
     * image has been constructed for this output device.  Each size of
     * the image may be cached separately and generated from the original
     * data in a separate image production sequence.
     * @param    img       the specified image to be drawn.
     * @param    x         the <i>x</i> coordinate.
     * @param    y         the <i>y</i> coordinate.
     * @param    width     the width of the rectangle.
     * @param    height    the height of the rectangle.
     * @param    bgcolor   the background color to paint under the
     *                         non-opaque portions of the image.
     * @param    observer    object to be notified as more of
     *                          the image is converted.
     * @see      java.awt.Image
     * @see      java.awt.image.ImageObserver
     * @see      java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
     * @since    1.0
     */
    public boolean drawImage(Image img, int x, int y,
                             int width, int height,
                             Color bgcolor,
                             ImageObserver observer) {

        if (img == null) {
            return true;
        }

        boolean result;

        if (needToCopyBgColorImage(img)) {
            BufferedImage imageCopy = getBufferedImageCopy(img, bgcolor);
            result = mGraphics.drawImage(imageCopy, x, y, width, height, null);
        } else {
            result = mGraphics.drawImage(img, x, y, width, height,
                                         bgcolor, observer);
        }

        return result;
    }

    /**
     * Draws as much of the specified area of the specified image as is
     * currently available, scaling it on the fly to fit inside the
     * specified area of the destination drawable surface. Transparent pixels
     * do not affect whatever pixels are already there.
     * <p>
     * This method returns immediately in all cases, even if the
     * image area to be drawn has not yet been scaled, dithered, and converted
     * for the current output device.
     * If the current output representation is not yet complete then
     * {@code drawImage} returns {@code false}. As more of
     * the image becomes available, the process that draws the image notifies
     * the specified image observer.
     * <p>
     * This method always uses the unscaled version of the image
     * to render the scaled rectangle and performs the required
     * scaling on the fly. It does not use a cached, scaled version
     * of the image for this operation. Scaling of the image from source
     * to destination is performed such that the first coordinate
     * of the source rectangle is mapped to the first coordinate of
     * the destination rectangle, and the second source coordinate is
     * mapped to the second destination coordinate. The subimage is
     * scaled and flipped as needed to preserve those mappings.
     * @param       img the specified image to be drawn
     * @param       dx1 the <i>x</i> coordinate of the first corner of the
     *                    destination rectangle.
     * @param       dy1 the <i>y</i> coordinate of the first corner of the
     *                    destination rectangle.
     * @param       dx2 the <i>x</i> coordinate of the second corner of the
     *                    destination rectangle.
     * @param       dy2 the <i>y</i> coordinate of the second corner of the
     *                    destination rectangle.
     * @param       sx1 the <i>x</i> coordinate of the first corner of the
     *                    source rectangle.
     * @param       sy1 the <i>y</i> coordinate of the first corner of the
     *                    source rectangle.
     * @param       sx2 the <i>x</i> coordinate of the second corner of the
     *                    source rectangle.
     * @param       sy2 the <i>y</i> coordinate of the second corner of the
     *                    source rectangle.
     * @param       observer object to be notified as more of the image is
     *                    scaled and converted.
     * @see         java.awt.Image
     * @see         java.awt.image.ImageObserver
     * @see         java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
     * @since       1.1
     */
    public boolean drawImage(Image img,
                                      int dx1, int dy1, int dx2, int dy2,
                                      int sx1, int sy1, int sx2, int sy2,
                                      ImageObserver observer) {
        return mGraphics.drawImage(img, dx1, dy1, dx2, dy2,
                                   sx1, sy1, sx2, sy2,
                                   observer);
    }

    /**
     * Draws as much of the specified area of the specified image as is
     * currently available, scaling it on the fly to fit inside the
     * specified area of the destination drawable surface.
     * <p>
     * Transparent pixels are drawn in the specified background color.
     * This operation is equivalent to filling a rectangle of the
     * width and height of the specified image with the given color and then
     * drawing the image on top of it, but possibly more efficient.
     * <p>
     * This method returns immediately in all cases, even if the
     * image area to be drawn has not yet been scaled, dithered, and converted
     * for the current output device.
     * If the current output representation is not yet complete then
     * {@code drawImage} returns {@code false}. As more of
     * the image becomes available, the process that draws the image notifies
     * the specified image observer.
     * <p>
     * This method always uses the unscaled version of the image
     * to render the scaled rectangle and performs the required
     * scaling on the fly. It does not use a cached, scaled version
     * of the image for this operation. Scaling of the image from source
     * to destination is performed such that the first coordinate
     * of the source rectangle is mapped to the first coordinate of
     * the destination rectangle, and the second source coordinate is
     * mapped to the second destination coordinate. The subimage is
     * scaled and flipped as needed to preserve those mappings.
     * @param       img the specified image to be drawn
     * @param       dx1 the <i>x</i> coordinate of the first corner of the
     *                    destination rectangle.
     * @param       dy1 the <i>y</i> coordinate of the first corner of the
     *                    destination rectangle.
     * @param       dx2 the <i>x</i> coordinate of the second corner of the
     *                    destination rectangle.
     * @param       dy2 the <i>y</i> coordinate of the second corner of the
     *                    destination rectangle.
     * @param       sx1 the <i>x</i> coordinate of the first corner of the
     *                    source rectangle.
     * @param       sy1 the <i>y</i> coordinate of the first corner of the
     *                    source rectangle.
     * @param       sx2 the <i>x</i> coordinate of the second corner of the
     *                    source rectangle.
     * @param       sy2 the <i>y</i> coordinate of the second corner of the
     *                    source rectangle.
     * @param       bgcolor the background color to paint under the
     *                    non-opaque portions of the image.
     * @param       observer object to be notified as more of the image is
     *                    scaled and converted.
     * @see         java.awt.Image
     * @see         java.awt.image.ImageObserver
     * @see         java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
     * @since       1.1
     */
    public boolean drawImage(Image img,
                             int dx1, int dy1, int dx2, int dy2,
                             int sx1, int sy1, int sx2, int sy2,
                             Color bgcolor,
                             ImageObserver observer) {

        if (img == null) {
            return true;
        }

        boolean result;
        if (needToCopyBgColorImage(img)) {
            BufferedImage imageCopy = getBufferedImageCopy(img, bgcolor);
            result = mGraphics.drawImage(imageCopy,
                                         dx1, dy1, dx2, dy2,
                                         sy1, sy1, sx2, sy2,
                                         null);
        } else {
            result = mGraphics.drawImage(img,
                                         dx1, dy1, dx2, dy2,
                                         sy1, sy1, sx2, sy2,
                                         bgcolor,
                                         observer);
        }

        return result;
    }

    /**
     * Return true if drawing {@code img} will
     * invoke a Java2D bug (#4258675). The bug in question
     * occurs when a draw image call with a background color
     * parameter tries to render a sheared
     * or rotated image. The portions of the bounding
     * rectangle not covered by the sheared image
     * are incorrectly drawn with the background color.
     */
    private boolean needToCopyBgColorImage(Image img) {

        boolean needToCopy;

        AffineTransform transform = getTransform();

        return (transform.getType()
                & (AffineTransform.TYPE_GENERAL_ROTATION
                   | AffineTransform.TYPE_GENERAL_TRANSFORM)) != 0;
    }

    /**
     * Return a new {@code BufferedImage}
     * that contains a copy of the provided
     * {@code Image} where its
     * transparent pixels have been replaced by
     * {@code bgcolor}. If the new
     * {@code BufferedImage} can not be created,
     * probably because the original image has not
     * finished loading, then {@code null} is
     * returned.
     */
    private BufferedImage getBufferedImageCopy(Image img, Color bgcolor) {

        BufferedImage imageCopy = null;

        int width = img.getWidth(null);
        int height = img.getHeight(null);

        if (width > 0 && height > 0) {

            int imageType;

            /* Try to minimize the depth of the BufferedImage
             * we are about to create by, if possible, making
             * it the same depth as the original image.
             */
            if (img instanceof BufferedImage) {
                BufferedImage bufImage = (BufferedImage) img;
                imageType = bufImage.getType();
            } else {
                imageType = BufferedImage.TYPE_INT_ARGB;
            }

            imageCopy = new BufferedImage(width, height, imageType);

            /* Copy the original image into the new buffer
             * without any transformations.
             * This will replace the transparent pixels
             * in the original with background color.
             */
            Graphics g = imageCopy.createGraphics();
            g.drawImage(img, 0, 0, bgcolor, null);
            g.dispose();

        /* We couldn't get the width or height of the image
         * so just return null.
         */
        } else {
            imageCopy = null;
        }

        return imageCopy;
    }

    /**
     * Draws an image, applying a transform from image space into user space
     * before drawing.
     * The transformation from user space into device space is done with
     * the current transform in the Graphics2D.
     * The given transformation is applied to the image before the
     * transform attribute in the Graphics2D state is applied.
     * The rendering attributes applied include the clip, transform,
     * and composite attributes. Note that the result is
     * undefined, if the given transform is noninvertible.
     * @param img The image to be drawn.
     * @param xform The transformation from image space into user space.
     * @see #transform
     * @see #setTransform
     * @see #setComposite
     * @see #clip
     * @see #setClip
     */
    public void drawRenderedImage(RenderedImage img,
                                  AffineTransform xform) {
        mGraphics.drawRenderedImage(img, xform);
    }



    public void drawRenderableImage(RenderableImage img,
                                    AffineTransform xform) {

        if (img == null) {
            return;
        }

        AffineTransform pipeTransform = getTransform();
        AffineTransform concatTransform = new AffineTransform(xform);
        concatTransform.concatenate(pipeTransform);
        AffineTransform reverseTransform;

        RenderContext rc = new RenderContext(concatTransform);

        try {
            reverseTransform = pipeTransform.createInverse();
        } catch (NoninvertibleTransformException nte) {
            rc = new RenderContext(pipeTransform);
            reverseTransform = new AffineTransform();
        }

        RenderedImage rendering = img.createRendering(rc);
        drawRenderedImage(rendering,reverseTransform);
    }

    /**
     * Disposes of this graphics context and releases
     * any system resources that it is using.
     * A {@code Graphics} object cannot be used after
     * {@code dispose} has been called.
     * <p>
     * When a Java program runs, a large number of {@code Graphics}
     * objects can be created within a short time frame.
     * Although the finalization process of the garbage collector
     * also disposes of the same system resources, it is preferable
     * to manually free the associated resources by calling this
     * method rather than to rely on a finalization process which
     * may not run to completion for a long period of time.
     * <p>
     * Graphics objects which are provided as arguments to the
     * {@code paint} and {@code update} methods
     * of components are automatically released by the system when
     * those methods return. For efficiency, programmers should
     * call {@code dispose} when finished using
     * a {@code Graphics} object only if it was created
     * directly from a component or another {@code Graphics} object.
     * @see         java.awt.Graphics#finalize
     * @see         java.awt.Component#paint
     * @see         java.awt.Component#update
     * @see         java.awt.Component#getGraphics
     * @see         java.awt.Graphics#create
     * @since       1.0
     */
    public void dispose() {
        mGraphics.dispose();
    }

    /**
     * Empty finalizer as no clean up needed here.
     */
    @SuppressWarnings("deprecation")
    public void finalize() {
    }


/* The Delegated Graphics2D Methods */

    /**
     * Strokes the outline of a Shape using the settings of the current
     * graphics state.  The rendering attributes applied include the
     * clip, transform, paint or color, composite and stroke attributes.
     * @param s The shape to be drawn.
     * @see #setStroke
     * @see #setPaint
     * @see java.awt.Graphics#setColor
     * @see #transform
     * @see #setTransform
     * @see #clip
     * @see #setClip
     * @see #setComposite
     */
    public void draw(Shape s) {
        mGraphics.draw(s);
    }

    /**
     * Draws an image, applying a transform from image space into user space
     * before drawing.
     * The transformation from user space into device space is done with
     * the current transform in the Graphics2D.
     * The given transformation is applied to the image before the
     * transform attribute in the Graphics2D state is applied.
     * The rendering attributes applied include the clip, transform,
     * and composite attributes. Note that the result is
     * undefined, if the given transform is noninvertible.
     * @param img The image to be drawn.
     * @param xform The transformation from image space into user space.
     * @param obs The image observer to be notified as more of the image
     * is converted.
     * @see #transform
     * @see #setTransform
     * @see #setComposite
     * @see #clip
     * @see #setClip
     */
    public boolean drawImage(Image img,
                             AffineTransform xform,
                             ImageObserver obs) {

        return mGraphics.drawImage(img, xform, obs);
    }

    /**
     * Draws a BufferedImage that is filtered with a BufferedImageOp.
     * The rendering attributes applied include the clip, transform
     * and composite attributes.  This is equivalent to:
     * <pre>
     * img1 = op.filter(img, null);
     * drawImage(img1, new AffineTransform(1f,0f,0f,1f,x,y), null);
     * </pre>
     * @param op The filter to be applied to the image before drawing.
     * @param img The BufferedImage to be drawn.
     * @param x,y The location in user space where the image should be drawn.
     * @see #transform
     * @see #setTransform
     * @see #setComposite
     * @see #clip
     * @see #setClip
     */
    public void drawImage(BufferedImage img,
                          BufferedImageOp op,
                          int x,
                          int y) {

        mGraphics.drawImage(img, op, x, y);
    }


    /**
     * Draws a string of text.
     * The rendering attributes applied include the clip, transform,
     * paint or color, font and composite attributes.
     * @param str The string to be drawn.
     * @param x,y The coordinates where the string should be drawn.
     * @see #setPaint
     * @see java.awt.Graphics#setColor
     * @see java.awt.Graphics#setFont
     * @see #transform
     * @see #setTransform
     * @see #setComposite
     * @see #clip
     * @see #setClip
     */
    public void drawString(String str,
                           float x,
                           float y) {
        mGraphics.drawString(str, x, y);
    }

    /**
     * Draws a GlyphVector.
     * The rendering attributes applied include the clip, transform,
     * paint or color, and composite attributes.  The GlyphVector specifies
     * individual glyphs from a Font.
     * @param g The GlyphVector to be drawn.
     * @param x,y The coordinates where the glyphs should be drawn.
     * @see #setPaint
     * @see java.awt.Graphics#setColor
     * @see #transform
     * @see #setTransform
     * @see #setComposite
     * @see #clip
     * @see #setClip
     */
    public void drawGlyphVector(GlyphVector g,
                                float x,
                                float y) {
        mGraphics.drawGlyphVector(g, x, y);
    }

    /**
     * Fills the interior of a Shape using the settings of the current
     * graphics state. The rendering attributes applied include the
     * clip, transform, paint or color, and composite.
     * @see #setPaint
     * @see java.awt.Graphics#setColor
     * @see #transform
     * @see #setTransform
     * @see #setComposite
     * @see #clip
     * @see #setClip
     */
    public void fill(Shape s) {
        mGraphics.fill(s);
    }

    /**
     * Checks to see if the outline of a Shape intersects the specified
     * Rectangle in device space.
     * The rendering attributes taken into account include the
     * clip, transform, and stroke attributes.
     * @param rect The area in device space to check for a hit.
     * @param s The shape to check for a hit.
     * @param onStroke Flag to choose between testing the stroked or
     * the filled shape.
     * @return True if there is a hit, false otherwise.
     * @see #setStroke
     * @see #fill
     * @see #draw
     * @see #transform
     * @see #setTransform
     * @see #clip
     * @see #setClip
     */
    public boolean hit(Rectangle rect,
                       Shape s,
                       boolean onStroke) {

        return mGraphics.hit(rect, s, onStroke);
    }

    /**
     * Sets the Composite in the current graphics state. Composite is used
     * in all drawing methods such as drawImage, drawString, draw,
     * and fill.  It specifies how new pixels are to be combined with
     * the existing pixels on the graphics device in the rendering process.
     * @param comp The Composite object to be used for drawing.
     * @see java.awt.Graphics#setXORMode
     * @see java.awt.Graphics#setPaintMode
     * @see java.awt.AlphaComposite
     */
    public void setComposite(Composite comp) {
        mGraphics.setComposite(comp);
    }


    /**
     * Sets the Paint in the current graphics state.
     * @param paint The Paint object to be used to generate color in
     * the rendering process.
     * @see java.awt.Graphics#setColor
     * @see java.awt.GradientPaint
     * @see java.awt.TexturePaint
     */
    public void setPaint(Paint paint) {
        mGraphics.setPaint(paint);
    }

    /**
     * Sets the Stroke in the current graphics state.
     * @param s The Stroke object to be used to stroke a Shape in
     * the rendering process.
     * @see java.awt.BasicStroke
     */
    public void setStroke(Stroke s) {
        mGraphics.setStroke(s);
    }

    /**
     * Sets the preferences for the rendering algorithms.
     * Hint categories include controls for rendering quality and
     * overall time/quality trade-off in the rendering process.
     * @param hintCategory The category of hint to be set.
     * @param hintValue The value indicating preferences for the specified
     * hint category.
     * @see RenderingHints
     */
    public void setRenderingHint(Key hintCategory, Object hintValue) {
        mGraphics.setRenderingHint(hintCategory, hintValue);
    }

    /**
     * Returns the preferences for the rendering algorithms.
     * @param hintCategory The category of hint to be set.
     * @return The preferences for rendering algorithms.
     * @see RenderingHints
     */
    public Object getRenderingHint(Key hintCategory) {
        return mGraphics.getRenderingHint(hintCategory);
    }

    /**
     * Sets the preferences for the rendering algorithms.
     * Hint categories include controls for rendering quality and
     * overall time/quality trade-off in the rendering process.
     * @param hints The rendering hints to be set
     * @see RenderingHints
     */
    public void setRenderingHints(Map<?,?> hints) {
        mGraphics.setRenderingHints(hints);
    }

    /**
     * Adds a number of preferences for the rendering algorithms.
     * Hint categories include controls for rendering quality and
     * overall time/quality trade-off in the rendering process.
     * @param hints The rendering hints to be set
     * @see RenderingHints
     */
    public void addRenderingHints(Map<?,?> hints) {
        mGraphics.addRenderingHints(hints);
    }

    /**
     * Gets the preferences for the rendering algorithms.
     * Hint categories include controls for rendering quality and
     * overall time/quality trade-off in the rendering process.
     * @see RenderingHints
     */
    public RenderingHints getRenderingHints() {
        return mGraphics.getRenderingHints();
    }

    /**
     * Composes a Transform object with the transform in this
     * Graphics2D according to the rule last-specified-first-applied.
     * If the currrent transform is Cx, the result of composition
     * with Tx is a new transform Cx'.  Cx' becomes the current
     * transform for this Graphics2D.
     * Transforming a point p by the updated transform Cx' is
     * equivalent to first transforming p by Tx and then transforming
     * the result by the original transform Cx.  In other words,
     * Cx'(p) = Cx(Tx(p)).
     * A copy of the Tx is made, if necessary, so further
     * modifications to Tx do not affect rendering.
     * @param Tx The Transform object to be composed with the current
     * transform.
     * @see #setTransform
     * @see AffineTransform
     */
    public void transform(AffineTransform Tx) {
        mGraphics.transform(Tx);
    }

    /**
     * Sets the Transform in the current graphics state.
     * @param Tx The Transform object to be used in the rendering process.
     * @see #transform
     * @see AffineTransform
     */
    public void setTransform(AffineTransform Tx) {
        mGraphics.setTransform(Tx);
    }

    /**
     * Returns the current Transform in the Graphics2D state.
     * @see #transform
     * @see #setTransform
     */
    public AffineTransform getTransform() {
        return mGraphics.getTransform();
    }

    /**
     * Returns the current Paint in the Graphics2D state.
     * @see #setPaint
     * @see java.awt.Graphics#setColor
     */
    public Paint getPaint() {
        return mGraphics.getPaint();
    }

    /**
     * Returns the current Composite in the Graphics2D state.
     * @see #setComposite
     */
    public Composite getComposite() {
        return mGraphics.getComposite();
    }

    /**
     * Sets the background color in this context used for clearing a region.
     * When Graphics2D is constructed for a component, the backgroung color is
     * inherited from the component. Setting the background color in the
     * Graphics2D context only affects the subsequent clearRect() calls and
     * not the background color of the component. To change the background
     * of the component, use appropriate methods of the component.
     * @param color The background color that should be used in
     * subsequent calls to clearRect().
     * @see #getBackground
     * @see Graphics#clearRect
     */
    public void setBackground(Color color) {
        mGraphics.setBackground(color);
    }

    /**
     * Returns the background color used for clearing a region.
     * @see #setBackground
     */
    public Color getBackground() {
        return mGraphics.getBackground();
    }

    /**
     * Returns the current Stroke in the Graphics2D state.
     * @see #setStroke
     */
    public Stroke getStroke() {
        return mGraphics.getStroke();
    }

    /**
     * Intersects the current clip with the interior of the specified Shape
     * and sets the current clip to the resulting intersection.
     * The indicated shape is transformed with the current transform in the
     * Graphics2D state before being intersected with the current clip.
     * This method is used to make the current clip smaller.
     * To make the clip larger, use any setClip method.
     * @param s The Shape to be intersected with the current clip.
     */
     public void clip(Shape s) {
        mGraphics.clip(s);
     }
}