org.apache.xmlgraphics/xmlgraphics-commons/2.4 : org/apache/xmlgraphics/java2d/AbstractGraphics2D.java

AbstractGraphics2D
http://xmlgraphics.apache.org/commons/: Apache XML Graphics Commons is a library that consists of several reusable components used by Apache Batik and Apache FOP. Many of these components can easily be used separately outside the domains of SVG and XSL-FO. (Apache Software Foundation)
The Apache Software License, Version 2.0
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 * 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
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 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
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/* $Id: AbstractGraphics2D.java 1739071 2016-04-14 12:30:21Z ssteiner $ */

package org.apache.xmlgraphics.java2d;

import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Composite;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Paint;
import java.awt.Polygon;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.Stroke;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import java.awt.font.TextLayout;
import java.awt.geom.AffineTransform;
import java.awt.geom.Arc2D;
import java.awt.geom.Ellipse2D;
import java.awt.geom.GeneralPath;
import java.awt.geom.Line2D;
import java.awt.geom.NoninvertibleTransformException;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.awt.image.BufferedImageOp;
import java.awt.image.ImageObserver;
import java.text.AttributedCharacterIterator;
import java.util.Map;

// CSOFF: NeedBraces
// CSOFF: ParameterName
// CSOFF: WhitespaceAround

This extension of the java.awt.Graphics2D abstract class
is still abstract, but it implements a lot of the Graphics2D
method in a way that concrete implementations can reuse.
This class uses a GraphicContext to store the state of
its various attributes that control the rendering, such as the
current Font, Paint or clip.
Concrete implementations can focus on implementing the rendering
methods, such as drawShape. As a convenience, rendering
methods that can be expressed with other rendering methods (e.g.,
drawRect can be expressed as draw(new Rectangle(..))),
are implemented by AbstractGraphics2D
See Also: 
Originally authored by Vincent Hardy.
Version: $Id: AbstractGraphics2D.java 1739071 2016-04-14 12:30:21Z ssteiner $/**
 * This extension of the <tt>java.awt.Graphics2D</tt> abstract class
 * is still abstract, but it implements a lot of the <tt>Graphics2D</tt>
 * method in a way that concrete implementations can reuse.
 *
 * This class uses a <tt>GraphicContext</tt> to store the state of
 * its various attributes that control the rendering, such as the
 * current <tt>Font</tt>, <tt>Paint</tt> or clip.
 *
 * Concrete implementations can focus on implementing the rendering
 * methods, such as <tt>drawShape</tt>. As a convenience, rendering
 * methods that can be expressed with other rendering methods (e.g.,
 * <tt>drawRect</tt> can be expressed as <tt>draw(new Rectangle(..))</tt>),
 * are implemented by <tt>AbstractGraphics2D</tt>
 *
 * @version $Id: AbstractGraphics2D.java 1739071 2016-04-14 12:30:21Z ssteiner $
 * @see org.apache.xmlgraphics.java2d.GraphicContext
 *
 * Originally authored by Vincent Hardy.
 */
public abstract class AbstractGraphics2D extends Graphics2D implements Cloneable {
    Current state of the Graphic Context. The GraphicsContext
class manages the state of this Graphics2D graphic context
attributes.
/**
     * Current state of the Graphic Context. The GraphicsContext
     * class manages the state of this <tt>Graphics2D</tt> graphic context
     * attributes.
     */
    protected GraphicContext gc;

    Text handling strategy.
/**
     * Text handling strategy.
     */
    protected boolean textAsShapes;

    Protection agains infinite recursion
/**
     * Protection agains infinite recursion
     */
    protected boolean inPossibleRecursion;

    Params: textAsShapes – if true, all text is turned into shapes in the
       convertion. No text is output./**
     * @param textAsShapes if true, all text is turned into shapes in the
     *        convertion. No text is output.
     *
     */
    public AbstractGraphics2D(boolean textAsShapes) {
        this.textAsShapes = textAsShapes;
    }

    Creates a new AbstractGraphics2D from an existing instance.
Params: g – the AbstractGraphics2D whose properties should be copied/**
     * Creates a new AbstractGraphics2D from an existing instance.
     * @param g the AbstractGraphics2D whose properties should be copied
     */
    public AbstractGraphics2D(AbstractGraphics2D g) {
        this.gc = (GraphicContext)g.gc.clone();
        this.gc.validateTransformStack();
        this.textAsShapes = g.textAsShapes;
    }

    Translates the origin of the graphics context to the point
(x, y) in the current coordinate system.
Modifies this graphics context so that its new origin corresponds
to the point (x, y) 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.
Params: x –   the x coordinate.
y –   the y coordinate./**
     * 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.
     */
    public void translate(int x, int y) {
        gc.translate(x, y);
    }

    Gets this graphics context's current color.
See Also: Color
Graphics.setColor
Returns:    this graphics context's current color./**
     * Gets this graphics context's current color.
     * @return    this graphics context's current color.
     * @see       java.awt.Color
     * @see       java.awt.Graphics#setColor
     */
    public Color getColor() {
        return gc.getColor();
    }

    Sets this graphics context's current color to the specified
color. All subsequent graphics operations using this graphics
context use this specified color.
Params: c –   the new rendering color.
See Also: Color
Graphics.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
     */
    public void setColor(Color c) {
        gc.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.
/**
     * 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.
     */
    public void setPaintMode() {
        gc.setComposite(AlphaComposite.SrcOver);
    }

    Gets the current font.
See Also: Font
Graphics.setFont
Returns:    this graphics context's current font./**
     * Gets the current font.
     * @return    this graphics context's current font.
     * @see       java.awt.Font
     * @see       java.awt.Graphics#setFont
     */
    public Font getFont() {
        return gc.getFont();
    }

    Sets this graphics context's font to the specified font.
All subsequent text operations using this graphics context
use this font.
Params: font –   the font.
See Also: Graphics.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
     */
    public void setFont(Font font) {
        gc.setFont(font);
    }

    Returns the bounding rectangle of the current clipping area.
This method refers to the user clip, which is independent of the
clipping associated with device bounds and window visibility.
If no clip has previously been set, or if the clip has been
cleared using setClip(null), this method returns
null.
The coordinates in the rectangle are relative to the coordinate
system origin of this graphics context.
See Also: Graphics.getClip
Graphics.clipRect
Graphics.setClip(int, int, int, int)
Graphics.setClip(Shape)
Returns:      the bounding rectangle of the current clipping area,
             or null if no clip is set.
Since:       JDK1.1/**
     * Returns the bounding rectangle of the current clipping area.
     * This method refers to the user clip, which is independent of the
     * clipping associated with device bounds and window visibility.
     * If no clip has previously been set, or if the clip has been
     * cleared using <code>setClip(null)</code>, this method returns
     * <code>null</code>.
     * 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,
     *              or <code>null</code> if no clip is set.
     * @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       JDK1.1
     */
    public Rectangle getClipBounds() {
        return gc.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.  If there is no
current clipping area, either because the clip has never been
set, or the clip has been cleared using setClip(null),
the specified rectangle becomes the new clip.
This method sets the user clip, which is independent of the
clipping associated with device bounds and window visibility.
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.
Params: x – the x coordinate of the rectangle to intersect the clip with
y – the y coordinate of the rectangle to intersect the clip with
width – the width of the rectangle to intersect the clip with
height – the height of the rectangle to intersect the clip with
See Also: setClip(int, int, int, int)
setClip(Shape)/**
     * Intersects the current clip with the specified rectangle.
     * The resulting clipping area is the intersection of the current
     * clipping area and the specified rectangle.  If there is no
     * current clipping area, either because the clip has never been
     * set, or the clip has been cleared using <code>setClip(null)</code>,
     * the specified rectangle becomes the new clip.
     * This method sets the user clip, which is independent of the
     * clipping associated with device bounds and window visibility.
     * 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) {
        gc.clipRect(x, y, width, height);
    }


    Sets the current clip to the rectangle specified by the given
coordinates.  This method sets the user clip, which is
independent of the clipping associated with device bounds
and window visibility.
Rendering operations have no effect outside of the clipping area.
Params: x – the x coordinate of the new clip rectangle.
y – the y coordinate of the new clip rectangle.
width – the width of the new clip rectangle.
height – the height of the new clip rectangle.
See Also: Graphics.clipRect
Graphics.setClip(Shape)
Since:       JDK1.1/**
     * Sets the current clip to the rectangle specified by the given
     * coordinates.  This method sets the user clip, which is
     * independent of the clipping associated with device bounds
     * and window visibility.
     * 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       JDK1.1
     */
    public void setClip(int x, int y, int width, int height) {
        gc.setClip(x, y, width, height);
    }


    Gets the current clipping area.
This method returns the user clip, which is independent of the
clipping associated with device bounds and window visibility.
If no clip has previously been set, or if the clip has been
cleared using setClip(null), this method returns
null.
See Also: Graphics.getClipBounds()
Graphics.clipRect(int, int, int, int)
Graphics.setClip(int, int, int, int)
Graphics.setClip(Shape)
Returns:      a Shape object representing the
             current clipping area, or null if
             no clip is set.
Since:       JDK1.1/**
     * Gets the current clipping area.
     * This method returns the user clip, which is independent of the
     * clipping associated with device bounds and window visibility.
     * If no clip has previously been set, or if the clip has been
     * cleared using <code>setClip(null)</code>, this method returns
     * <code>null</code>.
     * @return      a <code>Shape</code> object representing the
     *              current clipping area, or <code>null</code> if
     *              no clip is set.
     * @see         java.awt.Graphics#getClipBounds()
     * @see         java.awt.Graphics#clipRect(int, int, int, int)
     * @see         java.awt.Graphics#setClip(int, int, int, int)
     * @see         java.awt.Graphics#setClip(Shape)
     * @since       JDK1.1
     */
    public Shape getClip() {
        return gc.getClip();
    }


    Sets the current clipping area to an arbitrary clip shape.
Not all objects that implement the Shape
interface can be used to set the clip.  The only
Shape objects that are guaranteed to be
supported are Shape objects that are
obtained via the getClip method and via
Rectangle objects.  This method sets the
user clip, which is independent of the clipping associated
with device bounds and window visibility.
Params: clip – the Shape to use to set the clip
See Also: Graphics.getClip()
Graphics.clipRect
Graphics.setClip(int, int, int, int)
Since:       JDK1.1/**
     * Sets the current clipping area to an arbitrary clip shape.
     * Not all objects that implement the <code>Shape</code>
     * interface can be used to set the clip.  The only
     * <code>Shape</code> objects that are guaranteed to be
     * supported are <code>Shape</code> objects that are
     * obtained via the <code>getClip</code> method and via
     * <code>Rectangle</code> objects.  This method sets the
     * user clip, which is independent of the clipping associated
     * with device bounds and window visibility.
     * @param clip the <code>Shape</code> to use to set the clip
     * @see         java.awt.Graphics#getClip()
     * @see         java.awt.Graphics#clipRect
     * @see         java.awt.Graphics#setClip(int, int, int, int)
     * @since       JDK1.1
     */
    public void setClip(Shape clip) {
        gc.setClip(clip);
    }


    Draws a line, using the current color, between the points
(x1, y1) and (x2, y2)
in this graphics context's coordinate system.
Params: x1 –  the first point's x coordinate.
y1 –  the first point's y coordinate.
x2 –  the second point's x coordinate.
y2 –  the second point's y coordinate./**
     * 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.
     */
    public void drawLine(int x1, int y1, int x2, int y2) {
        Line2D line = new Line2D.Float(x1, y1, x2, y2);
        draw(line);
    }


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

    public void drawRect(int x, int y, int width, int height) {
        Rectangle rect = new Rectangle(x, y, width, height);
        draw(rect);
    }



    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.

Beginning with Java 1.1, the background color
of offscreen images may be system dependent. Applications should
use setColor followed by fillRect to
ensure that an offscreen image is cleared to a specific color.
Params: x – the x coordinate of the rectangle to clear.
y – the y coordinate of the rectangle to clear.
width – the width of the rectangle to clear.
height – the height of the rectangle to clear.
See Also: Graphics.fillRect(int, int, int, int)
Graphics.drawRect
Graphics.setColor(Color)
Graphics.setPaintMode
Graphics.setXORMode(Color)/**
     * 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</code> followed by <code>fillRect</code> 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)
     */
    public void clearRect(int x, int y, int width, int height) {
        Paint paint = gc.getPaint();
        gc.setColor(gc.getBackground());
        fillRect(x, y, width, height);
        gc.setPaint(paint);
    }

    Draws an outlined round-cornered rectangle using this graphics
context's current color. The left and right edges of the rectangle
are at x and x + width,
respectively. The top and bottom edges of the rectangle are at
y and y + height.
Params: x – the x coordinate of the rectangle to be drawn.
y – the y coordinate of the rectangle to be drawn.
width – the width of the rectangle to be drawn.
height – the height of the rectangle to be drawn.
arcWidth – the horizontal diameter of the arc
                   at the four corners.
arcHeight – the vertical diameter of the arc
                   at the four corners.
See Also: Graphics.fillRoundRect/**
     * 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</code> and <code>x&nbsp;+&nbsp;width</code>,
     * respectively. The top and bottom edges of the rectangle are at
     * <code>y</code> 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
     */
    public void drawRoundRect(int x, int y, int width, int height,
                              int arcWidth, int arcHeight) {
        RoundRectangle2D rect = new RoundRectangle2D.Float(x, y, width, height, arcWidth, arcHeight);
        draw(rect);
    }


    Fills the specified rounded corner rectangle with the current color.
The left and right edges of the rectangle
are at x and x + width - 1,
respectively. The top and bottom edges of the rectangle are at
y and y + height - 1.
Params: x – the x coordinate of the rectangle to be filled.
y – the y coordinate of the rectangle to be filled.
width – the width of the rectangle to be filled.
height – the height of the rectangle to be filled.
arcWidth – the horizontal diameter
                    of the arc at the four corners.
arcHeight – the vertical diameter
                    of the arc at the four corners.
See Also: Graphics.drawRoundRect/**
     * Fills the specified rounded corner rectangle with the current color.
     * The left and right edges of the rectangle
     * are at <code>x</code> and <code>x&nbsp;+&nbsp;width&nbsp;-&nbsp;1</code>,
     * respectively. The top and bottom edges of the rectangle are at
     * <code>y</code> 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
     */
    public void fillRoundRect(int x, int y, int width, int height,
                              int arcWidth, int arcHeight) {
        RoundRectangle2D rect = new RoundRectangle2D.Float(x, y, width, height, arcWidth, arcHeight);
        fill(rect);
    }


    Draws the outline of an oval.
The result is a circle or ellipse that fits within the
rectangle specified by the x, y,
width, and height arguments.

The oval covers an area that is
width + 1 pixels wide
and height + 1 pixels tall.
Params: x – the x coordinate of the upper left
                    corner of the oval to be drawn.
y – the y coordinate of the upper left
                    corner of the oval to be drawn.
width – the width of the oval to be drawn.
height – the height of the oval to be drawn.
See Also: Graphics.fillOval/**
     * Draws the outline of an oval.
     * The result is a circle or ellipse that fits within the
     * rectangle specified by the <code>x</code>, <code>y</code>,
     * <code>width</code>, and <code>height</code> 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
     */
    public void drawOval(int x, int y, int width, int height) {
        Ellipse2D oval = new Ellipse2D.Float(x, y, width, height);
        draw(oval);
    }


    Fills an oval bounded by the specified rectangle with the
current color.
Params: x – the x coordinate of the upper left corner
                    of the oval to be filled.
y – the y coordinate of the upper left corner
                    of the oval to be filled.
width – the width of the oval to be filled.
height – the height of the oval to be filled.
See Also: Graphics.drawOval/**
     * 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
     */
    public void fillOval(int x, int y, int width, int height) {
        Ellipse2D oval = new Ellipse2D.Float(x, y, width, height);
        fill(oval);
    }


    Draws the outline of a circular or elliptical arc
covering the specified rectangle.

The resulting arc begins at startAngle and extends
for arcAngle degrees, using the current color.
Angles are interpreted such that 0 degrees
is at the 3 o'clock position.
A positive value indicates a counter-clockwise rotation
while a negative value indicates a clockwise rotation.

The center of the arc is the center of the rectangle whose origin
is (x, y) and whose size is specified by the
width and height arguments.

The resulting arc covers an area
width + 1 pixels wide
by height + 1 pixels tall.

The angles are specified relative to the non-square extents of
the bounding rectangle such that 45 degrees always falls on the
line from the center of the ellipse to the upper right corner of
the bounding rectangle. As a result, if the bounding rectangle is
noticeably longer in one axis than the other, the angles to the
start and end of the arc segment will be skewed farther along the
longer axis of the bounds.
Params: x – the x coordinate of the
                   upper-left corner of the arc to be drawn.
y – the y  coordinate of the
                   upper-left corner of the arc to be drawn.
width – the width of the arc to be drawn.
height – the height of the arc to be drawn.
startAngle – the beginning angle.
arcAngle – the angular extent of the arc,
                   relative to the start angle.
See Also: Graphics.fillArc/**
     * Draws the outline of a circular or elliptical arc
     * covering the specified rectangle.
     * <p>
     * The resulting arc begins at <code>startAngle</code> and extends
     * for <code>arcAngle</code> 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</code> and <code>height</code> 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.
     * <p>
     * The angles are specified relative to the non-square extents of
     * the bounding rectangle such that 45 degrees always falls on the
     * line from the center of the ellipse to the upper right corner of
     * the bounding rectangle. As a result, if the bounding rectangle is
     * noticeably longer in one axis than the other, the angles to the
     * start and end of the arc segment will be skewed farther along the
     * longer axis of the bounds.
     * @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
     */
    public void drawArc(int x, int y, int width, int height,
                        int startAngle, int arcAngle) {
        Arc2D arc = new Arc2D.Float(x, y, width, height, startAngle, arcAngle, Arc2D.OPEN);
        draw(arc);
    }


    Fills a circular or elliptical arc covering the specified rectangle.

The resulting arc begins at startAngle and extends
for arcAngle degrees.
Angles are interpreted such that 0 degrees
is at the 3 o'clock position.
A positive value indicates a counter-clockwise rotation
while a negative value indicates a clockwise rotation.

The center of the arc is the center of the rectangle whose origin
is (x, y) and whose size is specified by the
width and height arguments.

The resulting arc covers an area
width + 1 pixels wide
by height + 1 pixels tall.

The angles are specified relative to the non-square extents of
the bounding rectangle such that 45 degrees always falls on the
line from the center of the ellipse to the upper right corner of
the bounding rectangle. As a result, if the bounding rectangle is
noticeably longer in one axis than the other, the angles to the
start and end of the arc segment will be skewed farther along the
longer axis of the bounds.
Params: x – the x coordinate of the
                   upper-left corner of the arc to be filled.
y – the y  coordinate of the
                   upper-left corner of the arc to be filled.
width – the width of the arc to be filled.
height – the height of the arc to be filled.
startAngle – the beginning angle.
arcAngle – the angular extent of the arc,
                   relative to the start angle.
See Also: Graphics.drawArc/**
     * Fills a circular or elliptical arc covering the specified rectangle.
     * <p>
     * The resulting arc begins at <code>startAngle</code> and extends
     * for <code>arcAngle</code> 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</code> and <code>height</code> 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.
     * <p>
     * The angles are specified relative to the non-square extents of
     * the bounding rectangle such that 45 degrees always falls on the
     * line from the center of the ellipse to the upper right corner of
     * the bounding rectangle. As a result, if the bounding rectangle is
     * noticeably longer in one axis than the other, the angles to the
     * start and end of the arc segment will be skewed farther along the
     * longer axis of the bounds.
     * @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
     */
    public void fillArc(int x, int y, int width, int height,
                        int startAngle, int arcAngle) {
        Arc2D arc = new Arc2D.Float(x, y, width, height, startAngle, arcAngle, Arc2D.PIE);
        fill(arc);
    }


    Draws a sequence of connected lines defined by
arrays of x and y coordinates.
Each pair of (x, y) coordinates defines a point.
The figure is not closed if the first point
differs from the last point.
Params: xPoints – an array of x points
yPoints – an array of y points
nPoints – the total number of points
See Also: Graphics.drawPolygon(int[], int[], int)
Since:       JDK1.1/**
     * 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       JDK1.1
     */
    public void drawPolyline(int[] xPoints, int[] yPoints,
                             int nPoints) {
        if (nPoints > 0) {
            GeneralPath path = new GeneralPath();
            path.moveTo(xPoints[0], yPoints[0]);
            for (int i = 1; i < nPoints; i++) {
                path.lineTo(xPoints[i], yPoints[i]);
            }

            draw(path);
        }
    }

    Draws a closed polygon defined by
arrays of x and y coordinates.
Each pair of (x, y) coordinates defines a point.

This method draws the polygon defined by nPoint line
segments, where the first nPoint - 1
line segments are line segments from
(xPoints[i - 1], yPoints[i - 1])
to (xPoints[i], yPoints[i]), for
1 ≤ i ≤ nPoints.
The figure is automatically closed by drawing a line connecting
the final point to the first point, if those points are different.
Params: xPoints –   a an array of x coordinates.
yPoints –   a an array of y coordinates.
nPoints –   a the total number of points.
See Also: Graphics.fillPolygon(int[], int[], int)
Graphics.drawPolyline/**
     * 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</code> 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</code>.
     * 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</code> coordinates.
     * @param        yPoints   a an array of <code>y</code> coordinates.
     * @param        nPoints   a the total number of points.
     * @see          java.awt.Graphics#fillPolygon(int[],int[],int)
     * @see          java.awt.Graphics#drawPolyline
     */
    public void drawPolygon(int[] xPoints, int[] yPoints,
                            int nPoints) {
        Polygon polygon = new Polygon(xPoints, yPoints, nPoints);
        draw(polygon);
    }


    Fills a closed polygon defined by
arrays of x and y coordinates.

This method draws the polygon defined by nPoint line
segments, where the first nPoint - 1
line segments are line segments from
(xPoints[i - 1], yPoints[i - 1])
to (xPoints[i], yPoints[i]), for
1 ≤ i ≤ nPoints.
The figure is automatically closed by drawing a line connecting
the final point to the first point, if those points are different.

The area inside the polygon is defined using an
even-odd fill rule, also known as the alternating rule.
Params: xPoints –   a an array of x coordinates.
yPoints –   a an array of y coordinates.
nPoints –   a the total number of points.
See Also: Graphics.drawPolygon(int[], int[], int)/**
     * 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</code> 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</code>.
     * 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</code> coordinates.
     * @param        yPoints   a an array of <code>y</code> coordinates.
     * @param        nPoints   a the total number of points.
     * @see          java.awt.Graphics#drawPolygon(int[], int[], int)
     */
    public void fillPolygon(int[] xPoints, int[] yPoints,
                            int nPoints) {
        Polygon polygon = new Polygon(xPoints, yPoints, nPoints);
        fill(polygon);
    }

    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 (x, y) in this
graphics context's coordinate system.
Params: str –      the string to be drawn.
x –        the x coordinate.
y –        the y coordinate.
See Also: Graphics.drawBytes
Graphics.drawChars/**
     * 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
     */
    public void drawString(String str, int x, int y) {
        drawString(str, (float)x, (float)y);
    }

    Generic implementation for drawing attributed strings using TextLayout.
Params: iterator – the iterator whose text is to be rendered
x –        the x coordinate where the iterator's text is to be rendered
y –        the y coordinate where the iterator's text is to be rendered
See Also: Graphics2D.drawString(AttributedCharacterIterator, float, float)/**
     * Generic implementation for drawing attributed strings using TextLayout.
     *
     * @param iterator the iterator whose text is to be rendered
     * @param x        the x coordinate where the iterator's text is to be rendered
     * @param y        the y coordinate where the iterator's text is to be rendered
     * @see java.awt.Graphics2D#drawString (java.text.AttributedCharacterIterator,
     *      float, float)
     */
    public void drawString(AttributedCharacterIterator iterator, float x, float y) {
        if (inPossibleRecursion) {
            System.err.println("Called itself: drawString(AttributedCharacterIterator)");
        } else {
            inPossibleRecursion = true;
            TextLayout layout = new TextLayout(iterator, getFontRenderContext());
            layout.draw(this, x, y);
            inPossibleRecursion = false;
        }
    }

    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 (x, y) in this
graphics context's coordinate system.
Params: iterator – the iterator whose text is to be drawn
x –        the x coordinate.
y –        the y coordinate.
See Also: Graphics.drawBytes
Graphics.drawChars/**
     * 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.
     * @param       iterator the iterator whose text is 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
     */
    public void drawString(AttributedCharacterIterator iterator,
                           int x, int y) {
        drawString(iterator, (float)x, (float)y);
    }

    Draws as much of the specified image as is currently available.
The image is drawn with its top-left corner at
(x, y) in this graphics context's coordinate
space.  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.

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.

If the image has not yet been completely loaded, then
drawImage returns false. As more of
the image becomes available, the process that draws the image notifies
the specified image observer.
Params: img –    the specified image to be drawn.
x –      the x coordinate.
y –      the y coordinate.
bgcolor – the background color to paint under the
                        non-opaque portions of the image.
observer –    object to be notified as more of
                         the image is converted.
See Also: Image
ImageObserver
ImageObserver.imageUpdate(Image, int, int, int, int, int)/**
     * 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</code> returns <code>false</code>. 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)
     */
    public boolean drawImage(Image img, int x, int y,
                             Color bgcolor,
                             ImageObserver observer) {
        return drawImage(img, x, y, img.getWidth(null), img.getHeight(null),
                         bgcolor, observer);
    }


    Draws as much of the specified image as has already been scaled
to fit inside the specified rectangle.

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.

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
drawImage returns false. As more of
the image becomes available, the process that draws the image notifies
the specified image observer.

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.
Params: img –       the specified image to be drawn.
x –         the x coordinate.
y –         the y coordinate.
width –     the width of the rectangle.
height –    the height of the rectangle.
bgcolor –   the background color to paint under the
                        non-opaque portions of the image.
observer –    object to be notified as more of
                         the image is converted.
See Also: Image
ImageObserver
ImageObserver.imageUpdate(Image, int, int, int, int, int)/**
     * 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</code> returns <code>false</code>. 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)
     */
    public boolean drawImage(Image img, int x, int y,
                             int width, int height,
                             Color bgcolor,
                             ImageObserver observer) {
        Paint paint = gc.getPaint();
        gc.setPaint(bgcolor);
        fillRect(x, y, width, height);
        gc.setPaint(paint);
        drawImage(img, x, y, width, height, observer);

        return true;
    }

    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.

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
drawImage returns false. As more of
the image becomes available, the process that draws the image notifies
the specified image observer.

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.
Params: img – the specified image to be drawn
dx1 – the x coordinate of the first corner of the
                   destination rectangle.
dy1 – the y coordinate of the first corner of the
                   destination rectangle.
dx2 – the x coordinate of the second corner of the
                   destination rectangle.
dy2 – the y coordinate of the second corner of the
                   destination rectangle.
sx1 – the x coordinate of the first corner of the
                   source rectangle.
sy1 – the y coordinate of the first corner of the
                   source rectangle.
sx2 – the x coordinate of the second corner of the
                   source rectangle.
sy2 – the y coordinate of the second corner of the
                   source rectangle.
observer – object to be notified as more of the image is
                   scaled and converted.
See Also: Image
ImageObserver
ImageObserver.imageUpdate(Image, int, int, int, int, int)
Since:       JDK1.1/**
     * 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</code> returns <code>false</code>. 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       JDK1.1
     */
    public boolean drawImage(Image img,
                             int dx1, int dy1, int dx2, int dy2,
                             int sx1, int sy1, int sx2, int sy2,
                             ImageObserver observer) {
        BufferedImage src = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_ARGB);
        Graphics2D g = src.createGraphics();
        g.drawImage(img, 0, 0, null);
        g.dispose();

        src = src.getSubimage(sx1, sy1, sx2 - sx1, sy2 - sy1);

        return drawImage(src, dx1, dy1, dx2 - dx1, dy2 - dy1, 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.

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.

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
drawImage returns false. As more of
the image becomes available, the process that draws the image notifies
the specified image observer.

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.
Params: img – the specified image to be drawn
dx1 – the x coordinate of the first corner of the
                   destination rectangle.
dy1 – the y coordinate of the first corner of the
                   destination rectangle.
dx2 – the x coordinate of the second corner of the
                   destination rectangle.
dy2 – the y coordinate of the second corner of the
                   destination rectangle.
sx1 – the x coordinate of the first corner of the
                   source rectangle.
sy1 – the y coordinate of the first corner of the
                   source rectangle.
sx2 – the x coordinate of the second corner of the
                   source rectangle.
sy2 – the y coordinate of the second corner of the
                   source rectangle.
bgcolor – the background color to paint under the
                   non-opaque portions of the image.
observer – object to be notified as more of the image is
                   scaled and converted.
See Also: Image
ImageObserver
ImageObserver.imageUpdate(Image, int, int, int, int, int)
Since:       JDK1.1/**
     * 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</code> returns <code>false</code>. 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       JDK1.1
     */
    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) {
        Paint paint = gc.getPaint();
        gc.setPaint(bgcolor);
        fillRect(dx1, dy1, dx2 - dx1, dy2 - dy1);
        gc.setPaint(paint);
        return drawImage(img, dx1, dy1, dx2, dy2, sx1, sy1, sx2, sy2, observer);
    }


    Renders 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 specified transformation is applied to the image before the
transform attribute in the Graphics2D context is applied.
The rendering attributes applied include the Clip,
Transform, and Composite attributes.
Note that no rendering is done if the specified transform is
noninvertible.
Params: img – the Image to be rendered
xform – the transformation from image space into user space
obs – the ImageObserver to be notified as more of the Image
is converted
See Also: transform
setTransform
setComposite
clip
setClip(Shape)
Returns: true if the Image is
fully loaded and completely rendered;
false if the Image is still being loaded./**
     * Renders 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 <code>Transform</code> in the <code>Graphics2D</code>.
     * The specified transformation is applied to the image before the
     * transform attribute in the <code>Graphics2D</code> context is applied.
     * The rendering attributes applied include the <code>Clip</code>,
     * <code>Transform</code>, and <code>Composite</code> attributes.
     * Note that no rendering is done if the specified transform is
     * noninvertible.
     * @param img the <code>Image</code> to be rendered
     * @param xform the transformation from image space into user space
     * @param obs the {@link ImageObserver}
     * to be notified as more of the <code>Image</code>
     * is converted
     * @return <code>true</code> if the <code>Image</code> is
     * fully loaded and completely rendered;
     * <code>false</code> if the <code>Image</code> is still being loaded.
     * @see #transform
     * @see #setTransform
     * @see #setComposite
     * @see #clip
     * @see #setClip(Shape)
     */
    public boolean drawImage(Image img,
                             AffineTransform xform,
                             ImageObserver obs) {
        boolean retVal = true;
        if (xform == null) {
            xform = new AffineTransform();
        }
        if (xform.getDeterminant() != 0) {
            AffineTransform inverseTransform = null;
            try {
                inverseTransform = xform.createInverse();
            }   catch (NoninvertibleTransformException e) {
                                // Should never happen since we checked the
                                // matrix determinant
                throw new RuntimeException(e);
            }

            gc.transform(xform);
            retVal = drawImage(img, 0, 0, null);
            gc.transform(inverseTransform);
        } else {
            AffineTransform savTransform = new AffineTransform(gc.getTransform());
            gc.transform(xform);
            retVal = drawImage(img, 0, 0, null);
            gc.setTransform(savTransform);
        }

        return retVal;

    }


    Renders a BufferedImage that is filtered with a BufferedImageOp. The rendering attributes applied include the Clip,
Transform
and Composite attributes.  This is equivalent to:
img1 = op.filter(img, null);
drawImage(img1, new AffineTransform(1f,0f,0f,1f,x,y), null);

Params: img – the BufferedImage to be rendered
op – the filter to be applied to the image before rendering
x – the x coordinate in user space where the image is rendered
y – the y coordinate in user space where the image is rendered
See Also: transform
setTransform
setComposite
clip
setClip(Shape)/**
     * Renders a <code>BufferedImage</code> that is
     * filtered with a
     * {@link BufferedImageOp}.
     * The rendering attributes applied include the <code>Clip</code>,
     * <code>Transform</code>
     * and <code>Composite</code> attributes.  This is equivalent to:
     * <pre>
     * img1 = op.filter(img, null);
     * drawImage(img1, new AffineTransform(1f,0f,0f,1f,x,y), null);
     * </pre>
     * @param img the <code>BufferedImage</code> to be rendered
     * @param op the filter to be applied to the image before rendering
     * @param x the x coordinate in user space where the image is rendered
     * @param y the y coordinate in user space where the image is rendered
     * @see #transform
     * @see #setTransform
     * @see #setComposite
     * @see #clip
     * @see #setClip(Shape)
     */
    public void drawImage(BufferedImage img,
                          BufferedImageOp op,
                          int x,
                          int y) {
        img = op.filter(img, null);
        drawImage(img, x, y, null);
    }



    Renders the text of the specified GlyphVector using the Graphics2D context's rendering attributes.
The rendering attributes applied include the Clip,
Transform, Paint, and
Composite attributes.  The GlyphVector specifies individual glyphs from a Font. The GlyphVector can also contain the glyph positions.
This is the fastest way to render a set of characters to the
screen.
Params: g – the GlyphVector to be rendered
x – the x position in user space where the glyphs should be
       rendered
y – the y position in user space where the glyphs should be
       rendered
See Also: Font.createGlyphVector(FontRenderContext, char[])
GlyphVector
setPaint
Graphics.setColor
setTransform
setComposite
setClip(Shape)/**
     * Renders the text of the specified
     * {@link GlyphVector} using
     * the <code>Graphics2D</code> context's rendering attributes.
     * The rendering attributes applied include the <code>Clip</code>,
     * <code>Transform</code>, <code>Paint</code>, and
     * <code>Composite</code> attributes.  The <code>GlyphVector</code>
     * specifies individual glyphs from a {@link Font}.
     * The <code>GlyphVector</code> can also contain the glyph positions.
     * This is the fastest way to render a set of characters to the
     * screen.
     *
     * @param g the <code>GlyphVector</code> to be rendered
     * @param x the x position in user space where the glyphs should be
     *        rendered
     * @param y the y position in user space where the glyphs should be
     *        rendered
     *
     * @see java.awt.Font#createGlyphVector(FontRenderContext, char[])
     * @see java.awt.font.GlyphVector
     * @see #setPaint
     * @see java.awt.Graphics#setColor
     * @see #setTransform
     * @see #setComposite
     * @see #setClip(Shape)
     */
    public void drawGlyphVector(GlyphVector g, float x, float y) {
        Shape glyphOutline = g.getOutline(x, y);
        fill(glyphOutline);
    }

    Checks whether or not the specified Shape intersects the specified Rectangle, which is in device space. If onStroke is false, this method checks
whether or not the interior of the specified Shape
intersects the specified Rectangle.  If
onStroke is true, this method checks
whether or not the Stroke of the specified
Shape outline intersects the specified
Rectangle.
The rendering attributes taken into account include the
Clip, Transform, and Stroke
attributes.
Params: rect – the area in device space to check for a hit
s – the Shape to check for a hit
onStroke – flag used to choose between testing the
stroked or the filled shape.  If the flag is true, the
Stroke oultine is tested.  If the flag is
false, the filled Shape is tested.
See Also: setStroke
Graphics2D.fill(Shape)
Graphics2D.draw(Shape)
transform
setTransform
clip
setClip(Shape)
Returns: true if there is a hit; false
otherwise./**
     * Checks whether or not the specified <code>Shape</code> intersects
     * the specified {@link Rectangle}, which is in device
     * space. If <code>onStroke</code> is false, this method checks
     * whether or not the interior of the specified <code>Shape</code>
     * intersects the specified <code>Rectangle</code>.  If
     * <code>onStroke</code> is <code>true</code>, this method checks
     * whether or not the <code>Stroke</code> of the specified
     * <code>Shape</code> outline intersects the specified
     * <code>Rectangle</code>.
     * The rendering attributes taken into account include the
     * <code>Clip</code>, <code>Transform</code>, and <code>Stroke</code>
     * attributes.
     * @param rect the area in device space to check for a hit
     * @param s the <code>Shape</code> to check for a hit
     * @param onStroke flag used to choose between testing the
     * stroked or the filled shape.  If the flag is <code>true</code>, the
     * <code>Stroke</code> oultine is tested.  If the flag is
     * <code>false</code>, the filled <code>Shape</code> is tested.
     * @return <code>true</code> if there is a hit; <code>false</code>
     * otherwise.
     * @see #setStroke
     * @see #fill(Shape)
     * @see #draw(Shape)
     * @see #transform
     * @see #setTransform
     * @see #clip
     * @see #setClip(Shape)
     */
    public boolean hit(Rectangle rect,
                       Shape s,
                       boolean onStroke) {
        if (onStroke) {
            s = gc.getStroke().createStrokedShape(s);
        }

        s = gc.getTransform().createTransformedShape(s);

        return s.intersects(rect);
    }

    Sets the Composite for the Graphics2D context.
The 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 during the rendering
process.
If this Graphics2D context is drawing to a
Component on the display screen and the
Composite is a custom object rather than an
instance of the AlphaComposite class, and if
there is a security manager, its checkPermission
method is called with an AWTPermission("readDisplayPixels")
permission.
Params: comp – the Composite object to be used for rendering
Throws: SecurityException – 
        if a custom Composite object is being
        used to render to the screen and a security manager
        is set and its checkPermission method
        does not allow the operation.
See Also: Graphics.setXORMode
Graphics.setPaintMode
AlphaComposite/**
     * Sets the <code>Composite</code> for the <code>Graphics2D</code> context.
     * The <code>Composite</code> is used in all drawing methods such as
     * <code>drawImage</code>, <code>drawString</code>, <code>draw</code>,
     * and <code>fill</code>.  It specifies how new pixels are to be combined
     * with the existing pixels on the graphics device during the rendering
     * process.
     * <p>If this <code>Graphics2D</code> context is drawing to a
     * <code>Component</code> on the display screen and the
     * <code>Composite</code> is a custom object rather than an
     * instance of the <code>AlphaComposite</code> class, and if
     * there is a security manager, its <code>checkPermission</code>
     * method is called with an <code>AWTPermission("readDisplayPixels")</code>
     * permission.
     * @param comp the <code>Composite</code> object to be used for rendering
     * @throws SecurityException
     *         if a custom <code>Composite</code> object is being
     *         used to render to the screen and a security manager
     *         is set and its <code>checkPermission</code> method
     *         does not allow the operation.
     * @see java.awt.Graphics#setXORMode
     * @see java.awt.Graphics#setPaintMode
     * @see java.awt.AlphaComposite
     */
    public void setComposite(Composite comp) {
        gc.setComposite(comp);
    }


    Sets the Paint attribute for the
Graphics2D context.  Calling this method
with a null Paint object does
not have any effect on the current Paint attribute
of this Graphics2D.
Params: paint – the Paint object to be used to generate
color during the rendering process, or null
See Also: Graphics.setColor/**
     * Sets the <code>Paint</code> attribute for the
     * <code>Graphics2D</code> context.  Calling this method
     * with a <code>null</code> <code>Paint</code> object does
     * not have any effect on the current <code>Paint</code> attribute
     * of this <code>Graphics2D</code>.
     * @param paint the <code>Paint</code> object to be used to generate
     * color during the rendering process, or <code>null</code>
     * @see java.awt.Graphics#setColor
     */
    public void setPaint(Paint paint) {
        gc.setPaint(paint);
    }


    Sets the Stroke for the Graphics2D context.
Params: s – the Stroke object to be used to stroke a
Shape during the rendering process/**
     * Sets the <code>Stroke</code> for the <code>Graphics2D</code> context.
     * @param s the <code>Stroke</code> object to be used to stroke a
     * <code>Shape</code> during the rendering process
     */
    public void setStroke(Stroke s) {
        gc.setStroke(s);
    }


    Sets the value of a single preference for the rendering algorithms.
Hint categories include controls for rendering quality and overall
time/quality trade-off in the rendering process.  Refer to the
RenderingHints class for definitions of some common
keys and values.
Params: hintKey – the key of the hint to be set.
hintValue – the value indicating preferences for the specified
hint category.
See Also: RenderingHints/**
     * Sets the value of a single preference for the rendering algorithms.
     * Hint categories include controls for rendering quality and overall
     * time/quality trade-off in the rendering process.  Refer to the
     * <code>RenderingHints</code> class for definitions of some common
     * keys and values.
     * @param hintKey the key of the hint to be set.
     * @param hintValue the value indicating preferences for the specified
     * hint category.
     * @see RenderingHints
     */
    public void setRenderingHint(RenderingHints.Key hintKey, Object hintValue) {
        gc.setRenderingHint(hintKey, hintValue);
    }


    Returns the value of a single preference for the rendering algorithms.
Hint categories include controls for rendering quality and overall
time/quality trade-off in the rendering process.  Refer to the
RenderingHints class for definitions of some common
keys and values.
Params: hintKey – the key corresponding to the hint to get.
See Also: RenderingHints
Returns: an object representing the value for the specified hint key.
Some of the keys and their associated values are defined in the
RenderingHints class./**
     * Returns the value of a single preference for the rendering algorithms.
     * Hint categories include controls for rendering quality and overall
     * time/quality trade-off in the rendering process.  Refer to the
     * <code>RenderingHints</code> class for definitions of some common
     * keys and values.
     * @param hintKey the key corresponding to the hint to get.
     * @return an object representing the value for the specified hint key.
     * Some of the keys and their associated values are defined in the
     * <code>RenderingHints</code> class.
     * @see RenderingHints
     */
    public Object getRenderingHint(RenderingHints.Key hintKey) {
        return gc.getRenderingHint(hintKey);
    }


    Replaces the values of all preferences for the rendering
algorithms with the specified hints. The existing values for all rendering hints are discarded and the new set of known hints and values are initialized from the specified Map object. Hint categories include controls for rendering quality and overall time/quality trade-off in the rendering process. Refer to the RenderingHints class for definitions of
some common keys and values.
Params: hints – the rendering hints to be set
See Also: RenderingHints/**
     * Replaces the values of all preferences for the rendering
     * algorithms with the specified <code>hints</code>.
     * The existing values for all rendering hints are discarded and
     * the new set of known hints and values are initialized from the
     * specified {@link Map} object.
     * Hint categories include controls for rendering quality and
     * overall time/quality trade-off in the rendering process.
     * Refer to the <code>RenderingHints</code> class for definitions of
     * some common keys and values.
     * @param hints the rendering hints to be set
     * @see RenderingHints
     */
    public void setRenderingHints(Map hints) {
        gc.setRenderingHints(hints);
    }


    Sets the values of an arbitrary number of preferences for the
rendering algorithms.
Only values for the rendering hints that are present in the
specified Map object are modified.
All other preferences not present in the specified
object are left unmodified.
Hint categories include controls for rendering quality and
overall time/quality trade-off in the rendering process.
Refer to the RenderingHints class for definitions of
some common keys and values.
Params: hints – the rendering hints to be set
See Also: RenderingHints/**
     * Sets the values of an arbitrary number of preferences for the
     * rendering algorithms.
     * Only values for the rendering hints that are present in the
     * specified <code>Map</code> object are modified.
     * All other preferences not present in the specified
     * object are left unmodified.
     * Hint categories include controls for rendering quality and
     * overall time/quality trade-off in the rendering process.
     * Refer to the <code>RenderingHints</code> class for definitions of
     * some common keys and values.
     * @param hints the rendering hints to be set
     * @see RenderingHints
     */
    public void addRenderingHints(Map hints) {
        gc.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.
Returns all of the hint key/value pairs that were ever specified in
one operation.  Refer to the
RenderingHints class for definitions of some common
keys and values.
See Also: RenderingHints
Returns: a reference to an instance of RenderingHints
that contains the current preferences./**
     * Gets the preferences for the rendering algorithms.  Hint categories
     * include controls for rendering quality and overall time/quality
     * trade-off in the rendering process.
     * Returns all of the hint key/value pairs that were ever specified in
     * one operation.  Refer to the
     * <code>RenderingHints</code> class for definitions of some common
     * keys and values.
     * @return a reference to an instance of <code>RenderingHints</code>
     * that contains the current preferences.
     * @see RenderingHints
     */
    public RenderingHints getRenderingHints() {
        return gc.getRenderingHints();
    }

    Concatenates the current
Graphics2D Transform
with a translation transform.
Subsequent rendering is translated by the specified
distance relative to the previous position.
This is equivalent to calling transform(T), where T is an
AffineTransform represented by the following matrix:
         [   1    0    tx  ]
         [   0    1    ty  ]
         [   0    0    1   ]

Params: tx – the distance to translate along the x-axis
ty – the distance to translate along the y-axis/**
     * Concatenates the current
     * <code>Graphics2D</code> <code>Transform</code>
     * with a translation transform.
     * Subsequent rendering is translated by the specified
     * distance relative to the previous position.
     * This is equivalent to calling transform(T), where T is an
     * <code>AffineTransform</code> represented by the following matrix:
     * <pre>
     *          [   1    0    tx  ]
     *          [   0    1    ty  ]
     *          [   0    0    1   ]
     * </pre>
     * @param tx the distance to translate along the x-axis
     * @param ty the distance to translate along the y-axis
     */
    public void translate(double tx, double ty) {
        gc.translate(tx, ty);
    }


    Concatenates the current Graphics2D
Transform with a rotation transform.
Subsequent rendering is rotated by the specified radians relative
to the previous origin.
This is equivalent to calling transform(R), where R is an
AffineTransform represented by the following matrix:
         [   cos(theta)    -sin(theta)    0   ]
         [   sin(theta)     cos(theta)    0   ]
         [       0              0         1   ]

Rotating with a positive angle theta rotates points on the positive
x axis toward the positive y axis.
Params: theta – the angle of rotation in radians/**
     * Concatenates the current <code>Graphics2D</code>
     * <code>Transform</code> with a rotation transform.
     * Subsequent rendering is rotated by the specified radians relative
     * to the previous origin.
     * This is equivalent to calling <code>transform(R)</code>, where R is an
     * <code>AffineTransform</code> 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) {
        gc.rotate(theta);
    }


    Concatenates the current Graphics2D
Transform with a translated rotation
transform.  Subsequent rendering is transformed by a transform
which is constructed by translating to the specified location,
rotating by the specified radians, and translating back by the same
amount as the original translation.  This is equivalent to the
following sequence of calls:
         translate(x, y);
         rotate(theta);
         translate(-x, -y);

Rotating with a positive angle theta rotates points on the positive
x axis toward the positive y axis.
Params: theta – the angle of rotation in radians
x – the x coordinate of the origin of the rotation
y – the y coordinate of the origin of the rotation/**
     * Concatenates the current <code>Graphics2D</code>
     * <code>Transform</code> with a translated rotation
     * transform.  Subsequent rendering is transformed by a transform
     * which is constructed by translating to the specified location,
     * rotating by the specified radians, and translating back by the same
     * amount as the original translation.  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 y coordinate of the origin of the rotation
     */
    public void rotate(double theta, double x, double y) {
        gc.rotate(theta, x, y);
    }


    Concatenates the current Graphics2D
Transform with a scaling transformation
Subsequent rendering is resized according to the specified scaling
factors relative to the previous scaling.
This is equivalent to calling transform(S), where S is an
AffineTransform represented by the following matrix:
         [   sx   0    0   ]
         [   0    sy   0   ]
         [   0    0    1   ]

Params: sx – the amount by which X coordinates in subsequent
rendering operations are multiplied relative to previous
rendering operations.
sy – the amount by which Y coordinates in subsequent
rendering operations are multiplied relative to previous
rendering operations./**
     * Concatenates the current <code>Graphics2D</code>
     * <code>Transform</code> with a scaling transformation
     * Subsequent rendering is resized according to the specified scaling
     * factors relative to the previous scaling.
     * This is equivalent to calling <code>transform(S)</code>, where S is an
     * <code>AffineTransform</code> represented by the following matrix:
     * <pre>
     *          [   sx   0    0   ]
     *          [   0    sy   0   ]
     *          [   0    0    1   ]
     * </pre>
     * @param sx the amount by which X coordinates in subsequent
     * rendering operations are multiplied relative to previous
     * rendering operations.
     * @param sy the amount by which Y coordinates in subsequent
     * rendering operations are multiplied relative to previous
     * rendering operations.
     */
    public void scale(double sx, double sy) {
        gc.scale(sx, sy);
    }

    Concatenates the current Graphics2D
Transform with a shearing transform.
Subsequent renderings are sheared by the specified
multiplier relative to the previous position.
This is equivalent to calling transform(SH), where SH
is an AffineTransform represented by the following
matrix:
         [   1   shx   0   ]
         [  shy   1    0   ]
         [   0    0    1   ]

Params: shx – the multiplier by which coordinates are shifted in
the positive X axis direction as a function of their Y coordinate
shy – the multiplier by which coordinates are shifted in
the positive Y axis direction as a function of their X coordinate/**
     * Concatenates the current <code>Graphics2D</code>
     * <code>Transform</code> with a shearing transform.
     * Subsequent renderings are sheared by the specified
     * multiplier relative to the previous position.
     * This is equivalent to calling <code>transform(SH)</code>, where SH
     * is an <code>AffineTransform</code> represented by the following
     * matrix:
     * <pre>
     *          [   1   shx   0   ]
     *          [  shy   1    0   ]
     *          [   0    0    1   ]
     * </pre>
     * @param shx the multiplier by which coordinates are shifted in
     * the positive X axis direction as a function of their Y coordinate
     * @param shy the multiplier by which coordinates are shifted in
     * the positive Y axis direction as a function of their X coordinate
     */
    public void shear(double shx, double shy) {
        gc.shear(shx, shy);
    }

    Composes an AffineTransform object with the
Transform in this Graphics2D according
to the rule last-specified-first-applied.  If the current
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.
Params: tx – the AffineTransform object to be composed with
the current Transform
See Also: setTransform
AffineTransform/**
     * Composes an <code>AffineTransform</code> object with the
     * <code>Transform</code> in this <code>Graphics2D</code> according
     * to the rule last-specified-first-applied.  If the current
     * <code>Transform</code> is Cx, the result of composition
     * with Tx is a new <code>Transform</code> Cx'.  Cx' becomes the
     * current <code>Transform</code> for this <code>Graphics2D</code>.
     * Transforming a point p by the updated <code>Transform</code> Cx' is
     * equivalent to first transforming p by Tx and then transforming
     * the result by the original <code>Transform</code> 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 <code>AffineTransform</code> object to be composed with
     * the current <code>Transform</code>
     * @see #setTransform
     * @see AffineTransform
     */
    public void transform(AffineTransform tx) {
        gc.transform(tx);
    }

    Sets the Transform in the Graphics2D
context.
Params: tx – the AffineTransform object to be used in the
rendering process
See Also: transform
AffineTransform/**
     * Sets the <code>Transform</code> in the <code>Graphics2D</code>
     * context.
     * @param tx the <code>AffineTransform</code> object to be used in the
     * rendering process
     * @see #transform
     * @see AffineTransform
     */
    public void setTransform(AffineTransform tx) {
        gc.setTransform(tx);
    }


    Returns a copy of the current Transform in the
Graphics2D context.
See Also: transform
setTransform
Returns: the current AffineTransform in the
            Graphics2D context./**
     * Returns a copy of the current <code>Transform</code> in the
     * <code>Graphics2D</code> context.
     * @return the current <code>AffineTransform</code> in the
     *             <code>Graphics2D</code> context.
     * @see #transform
     * @see #setTransform
     */
    public AffineTransform getTransform() {
        return gc.getTransform();
    }


    Returns the current Paint of the
Graphics2D context.
See Also: setPaint
Graphics.setColor
Returns: the current Graphics2D Paint,
which defines a color or pattern./**
     * Returns the current <code>Paint</code> of the
     * <code>Graphics2D</code> context.
     * @return the current <code>Graphics2D</code> <code>Paint</code>,
     * which defines a color or pattern.
     * @see #setPaint
     * @see java.awt.Graphics#setColor
     */
    public Paint getPaint() {
        return gc.getPaint();
    }


    Returns the current Composite in the
Graphics2D context.
See Also: setComposite
Returns: the current Graphics2D Composite,
             which defines a compositing style./**
     * Returns the current <code>Composite</code> in the
     * <code>Graphics2D</code> context.
     * @return the current <code>Graphics2D</code> <code>Composite</code>,
     *              which defines a compositing style.
     * @see #setComposite
     */
    public Composite getComposite() {
        return gc.getComposite();
    }


    Sets the background color for the Graphics2D context.
The background color is used for clearing a region.
When a Graphics2D is constructed for a
Component, the background 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.
Params: color – the background color that isused in
subsequent calls to clearRect
See Also: getBackground
Graphics.clearRect/**
     * Sets the background color for the <code>Graphics2D</code> context.
     * The background color is used for clearing a region.
     * When a <code>Graphics2D</code> is constructed for a
     * <code>Component</code>, the background color is
     * inherited from the <code>Component</code>. Setting the background color
     * in the <code>Graphics2D</code> context only affects the subsequent
     * <code>clearRect</code> calls and not the background color of the
     * <code>Component</code>.  To change the background
     * of the <code>Component</code>, use appropriate methods of
     * the <code>Component</code>.
     * @param color the background color that isused in
     * subsequent calls to <code>clearRect</code>
     * @see #getBackground
     * @see java.awt.Graphics#clearRect
     */
    public void setBackground(Color color) {
        gc.setBackground(color);
    }


    Returns the background color used for clearing a region.
See Also: setBackground
Returns: the current Graphics2D Color,
which defines the background color./**
     * Returns the background color used for clearing a region.
     * @return the current <code>Graphics2D</code> <code>Color</code>,
     * which defines the background color.
     * @see #setBackground
     */
    public Color getBackground() {
        return gc.getBackground();
    }


    Returns the current Stroke in the
Graphics2D context.
See Also: setStroke
Returns: the current Graphics2D Stroke,
                which defines the line style./**
     * Returns the current <code>Stroke</code> in the
     * <code>Graphics2D</code> context.
     * @return the current <code>Graphics2D</code> <code>Stroke</code>,
     *                 which defines the line style.
     * @see #setStroke
     */
    public Stroke getStroke() {
        return gc.getStroke();
    }


    Intersects the current Clip with the interior of the
specified Shape and sets the Clip to the
resulting intersection.  The specified Shape is
transformed with the current Graphics2D
Transform before being intersected with the current
Clip.  This method is used to make the current
Clip smaller.
To make the Clip larger, use setClip.
The user clip modified by this method is independent of the clipping associated with device bounds and visibility. If no clip has previously been set, or if the clip has been cleared using setClip with a null argument, the specified Shape becomes
the new user clip.
Params: s – the Shape to be intersected with the current
         Clip.  If s is null,
         this method clears the current Clip./**
     * Intersects the current <code>Clip</code> with the interior of the
     * specified <code>Shape</code> and sets the <code>Clip</code> to the
     * resulting intersection.  The specified <code>Shape</code> is
     * transformed with the current <code>Graphics2D</code>
     * <code>Transform</code> before being intersected with the current
     * <code>Clip</code>.  This method is used to make the current
     * <code>Clip</code> smaller.
     * To make the <code>Clip</code> larger, use <code>setClip</code>.
     * The <i>user clip</i> modified by this method is independent of the
     * clipping associated with device bounds and visibility.  If no clip has
     * previously been set, or if the clip has been cleared using
     * {@link java.awt.Graphics#setClip(Shape) setClip} with a
     * <code>null</code> argument, the specified <code>Shape</code> becomes
     * the new user clip.
     * @param s the <code>Shape</code> to be intersected with the current
     *          <code>Clip</code>.  If <code>s</code> is <code>null</code>,
     *          this method clears the current <code>Clip</code>.
     */
    public void clip(Shape s) {
        gc.clip(s);
    }


    Get the rendering context of the Font within this
Graphics2D context. The FontRenderContext encapsulates application hints such as anti-aliasing and fractional metrics, as well as target device specific information such as dots-per-inch. This information should be provided by the application when using objects that perform typographical formatting, such as Font and
TextLayout.  This information should also be provided
by applications that perform their own layout and need accurate
measurements of various characteristics of glyphs such as advance
and line height when various rendering hints have been applied to
the text rendering.
See Also: FontRenderContext
Font.createGlyphVector(FontRenderContext, char[])
TextLayout
Returns: a reference to an instance of FontRenderContext.
Since:     JDK1.2/**
     * Get the rendering context of the <code>Font</code> within this
     * <code>Graphics2D</code> context.
     * The {@link FontRenderContext}
     * encapsulates application hints such as anti-aliasing and
     * fractional metrics, as well as target device specific information
     * such as dots-per-inch.  This information should be provided by the
     * application when using objects that perform typographical
     * formatting, such as <code>Font</code> and
     * <code>TextLayout</code>.  This information should also be provided
     * by applications that perform their own layout and need accurate
     * measurements of various characteristics of glyphs such as advance
     * and line height when various rendering hints have been applied to
     * the text rendering.
     *
     * @return a reference to an instance of FontRenderContext.
     * @see java.awt.font.FontRenderContext
     * @see java.awt.Font#createGlyphVector(FontRenderContext,char[])
     * @see java.awt.font.TextLayout
     * @since     JDK1.2
     */
    public FontRenderContext getFontRenderContext() {
        return gc.getFontRenderContext();
    }

    Returns: the GraphicContext of this Graphics2D./**
     * @return the {@link GraphicContext} of this <code>Graphics2D</code>.
     */
    public GraphicContext getGraphicContext() {
        return gc;
    }
}
See Also:	Originally authored by Vincent Hardy.
Version:	$Id: AbstractGraphics2D.java 1739071 2016-04-14 12:30:21Z ssteiner $
See Also:	Color Graphics.setColor
Returns:	this graphics context's current color.
Params:	c – the new rendering color.
See Also:	Color Graphics.getColor
See Also:	Font Graphics.setFont
Returns:	this graphics context's current font.
See Also:	Graphics.getClip Graphics.clipRect Graphics.setClip(int, int, int, int) Graphics.setClip(Shape)
Returns:	the bounding rectangle of the current clipping area, or `null` if no clip is set.
Since:	JDK1.1
Params:	x – the x coordinate of the rectangle to intersect the clip with y – the y coordinate of the rectangle to intersect the clip with width – the width of the rectangle to intersect the clip with height – the height of the rectangle to intersect the clip with
See Also:	setClip(int, int, int, int) setClip(Shape)
Params:	x – the x coordinate of the new clip rectangle. y – the y coordinate of the new clip rectangle. width – the width of the new clip rectangle. height – the height of the new clip rectangle.
See Also:	Graphics.clipRect Graphics.setClip(Shape)
Since:	JDK1.1
See Also:	Graphics.getClipBounds() Graphics.clipRect(int, int, int, int) Graphics.setClip(int, int, int, int) Graphics.setClip(Shape)
Returns:	a `Shape` object representing the current clipping area, or `null` if no clip is set.
Since:	JDK1.1
Params:	clip – the `Shape` to use to set the clip
See Also:	Graphics.getClip() Graphics.clipRect Graphics.setClip(int, int, int, int)
Since:	JDK1.1
Params:	x – the x coordinate of the upper left corner of the oval to be drawn. y – the y coordinate of the upper left corner of the oval to be drawn. width – the width of the oval to be drawn. height – the height of the oval to be drawn.
See Also:	Graphics.fillOval
Params:	x – the x coordinate of the upper-left corner of the arc to be drawn. y – the y coordinate of the upper-left corner of the arc to be drawn. width – the width of the arc to be drawn. height – the height of the arc to be drawn. startAngle – the beginning angle. arcAngle – the angular extent of the arc, relative to the start angle.
See Also:	Graphics.fillArc
Params:	xPoints – an array of x points yPoints – an array of y points nPoints – the total number of points
See Also:	Graphics.drawPolygon(int[], int[], int)
Since:	JDK1.1
Params:	xPoints – a an array of `x` coordinates. yPoints – a an array of `y` coordinates. nPoints – a the total number of points.
See Also:	Graphics.fillPolygon(int[], int[], int) Graphics.drawPolyline
Params:	str – the string to be drawn. x – the x coordinate. y – the y coordinate.
See Also:	Graphics.drawBytes Graphics.drawChars
Params:	iterator – the iterator whose text is to be rendered x – the x coordinate where the iterator's text is to be rendered y – the y coordinate where the iterator's text is to be rendered
See Also:	Graphics2D.drawString(AttributedCharacterIterator, float, float)
Params:	img – the specified image to be drawn. x – the x coordinate. y – the y coordinate. bgcolor – the background color to paint under the non-opaque portions of the image. observer – object to be notified as more of the image is converted.
See Also:	Image ImageObserver ImageObserver.imageUpdate(Image, int, int, int, int, int)
Params:	img – the specified image to be drawn dx1 – the x coordinate of the first corner of the destination rectangle. dy1 – the y coordinate of the first corner of the destination rectangle. dx2 – the x coordinate of the second corner of the destination rectangle. dy2 – the y coordinate of the second corner of the destination rectangle. sx1 – the x coordinate of the first corner of the source rectangle. sy1 – the y coordinate of the first corner of the source rectangle. sx2 – the x coordinate of the second corner of the source rectangle. sy2 – the y coordinate of the second corner of the source rectangle. observer – object to be notified as more of the image is scaled and converted.
See Also:	Image ImageObserver ImageObserver.imageUpdate(Image, int, int, int, int, int)
Since:	JDK1.1
Params:	img – the `Image` to be rendered xform – the transformation from image space into user space obs – the `ImageObserver` to be notified as more of the `Image` is converted
See Also:	transform setTransform setComposite clip setClip(Shape)
Returns:	`true` if the `Image` is fully loaded and completely rendered; `false` if the `Image` is still being loaded.
Params:	img – the `BufferedImage` to be rendered op – the filter to be applied to the image before rendering x – the x coordinate in user space where the image is rendered y – the y coordinate in user space where the image is rendered
See Also:	transform setTransform setComposite clip setClip(Shape)
Params:	g – the `GlyphVector` to be rendered x – the x position in user space where the glyphs should be rendered y – the y position in user space where the glyphs should be rendered
See Also:	Font.createGlyphVector(FontRenderContext, char[]) GlyphVector setPaint Graphics.setColor setTransform setComposite setClip(Shape)
/

org.apache.xmlgraphics/ xmlgraphics-commons/ 2.4/ org/apache/xmlgraphics/java2d/AbstractGraphics2D.java
