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	/*
	* Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package sun.print;

	import java.lang.ref.SoftReference;
	import java.util.Hashtable;
	import sun.font.CharToGlyphMapper;
	import sun.font.CompositeFont;
	import sun.font.Font2D;
	import sun.font.Font2DHandle;
	import sun.font.FontManager;
	import sun.font.FontManagerFactory;
	import sun.font.FontUtilities;

	import java.awt.Color;
	import java.awt.Font;
	import java.awt.Graphics2D;
	import java.awt.Image;
	import java.awt.Paint;
	import java.awt.Polygon;
	import java.awt.Shape;

	import java.text.AttributedCharacterIterator;

	import java.awt.font.FontRenderContext;
	import java.awt.font.GlyphVector;
	import java.awt.font.TextAttribute;
	import java.awt.font.TextLayout;

	import java.awt.geom.AffineTransform;
	import java.awt.geom.Arc2D;
	import java.awt.geom.Ellipse2D;
	import java.awt.geom.Line2D;
	import java.awt.geom.Point2D;
	import java.awt.geom.Rectangle2D;
	import java.awt.geom.RoundRectangle2D;
	import java.awt.geom.PathIterator;

	import java.awt.image.BufferedImage;
	import java.awt.image.BufferedImageOp;
	import java.awt.image.ColorModel;
	import java.awt.image.DataBuffer;
	import java.awt.image.DataBufferInt;
	import java.awt.image.ImageObserver;
	import java.awt.image.IndexColorModel;
	import java.awt.image.Raster;
	import java.awt.image.RenderedImage;
	import java.awt.image.SampleModel;
	import java.awt.image.SinglePixelPackedSampleModel;
	import java.awt.image.VolatileImage;
	import sun.awt.image.ByteComponentRaster;
	import sun.awt.image.ToolkitImage;
	import sun.awt.image.SunWritableRaster;

	import java.awt.print.PageFormat;
	import java.awt.print.Printable;
	import java.awt.print.PrinterException;
	import java.awt.print.PrinterGraphics;
	import java.awt.print.PrinterJob;

	import java.util.Map;

	public abstract class PathGraphics extends ProxyGraphics2D {

	private Printable mPainter;
	private PageFormat mPageFormat;
	private int mPageIndex;
	private boolean mCanRedraw;
	protected boolean printingGlyphVector;

	protected PathGraphics(Graphics2D graphics, PrinterJob printerJob,
	Printable painter, PageFormat pageFormat,
	int pageIndex, boolean canRedraw) {
	super(graphics, printerJob);

	mPainter = painter;
	mPageFormat = pageFormat;
	mPageIndex = pageIndex;
	mCanRedraw = canRedraw;
	}

	/**
	* Return the Printable instance responsible for drawing
	* into this Graphics.
	*/
	protected Printable getPrintable() {
	return mPainter;
	}

	/**
	* Return the PageFormat associated with this page of
	* Graphics.
	*/
	protected PageFormat getPageFormat() {
	return mPageFormat;
	}

	/**
	* Return the page index associated with this Graphics.
	*/
	protected int getPageIndex() {
	return mPageIndex;
	}

	/**
	* Return true if we are allowed to ask the application
	* to redraw portions of the page. In general, with the
	* PrinterJob API, the application can be asked to do a
	* redraw. When PrinterJob is emulating PrintJob then we
	* can not.
	*/
	public boolean canDoRedraws() {
	return mCanRedraw;
	}

	/**
	* Redraw a rectanglular area using a proxy graphics
	*/
	public abstract void redrawRegion(Rectangle2D region,
	double scaleX, double scaleY,
	Shape clip,
	AffineTransform devTransform)

	throws PrinterException ;

	/**
	* Draws a line, using the current color, between the points
	* <code>(x1, y1)</code> and <code>(x2, 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) {

	Paint paint = getPaint();

	try {
	AffineTransform deviceTransform = getTransform();
	if (getClip() != null) {
	deviceClip(getClip().getPathIterator(deviceTransform));
	}

	deviceDrawLine(x1, y1, x2, y2, (Color) paint);

	} catch (ClassCastException e) {
	throw new IllegalArgumentException("Expected a Color instance");
	}
	}


	/**
	* Draws the outline of the specified rectangle.
	* The left and right edges of the rectangle are at
	* <code>x</code> and <code>x + width</code>.
	* The top and bottom edges are at
	* <code>y</code> and <code>y + height</code>.
	* The rectangle is drawn using the graphics context's current color.
	* @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.
	* @see java.awt.Graphics#fillRect
	* @see java.awt.Graphics#clearRect
	*/
	public void drawRect(int x, int y, int width, int height) {

	Paint paint = getPaint();

	try {
	AffineTransform deviceTransform = getTransform();
	if (getClip() != null) {
	deviceClip(getClip().getPathIterator(deviceTransform));
	}

	deviceFrameRect(x, y, width, height, (Color) paint);

	} catch (ClassCastException e) {
	throw new IllegalArgumentException("Expected a Color instance");
	}

	}

	/**
	* Fills the specified rectangle.
	* The left and right edges of the rectangle are at
	* <code>x</code> and <code>x + width - 1</code>.
	* The top and bottom edges are at
	* <code>y</code> and <code>y + height - 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){

	Paint paint = getPaint();

	try {
	AffineTransform deviceTransform = getTransform();
	if (getClip() != null) {
	deviceClip(getClip().getPathIterator(deviceTransform));
	}

	deviceFillRect(x, y, width, height, (Color) paint);

	} catch (ClassCastException e) {
	throw new IllegalArgumentException("Expected a Color instance");
	}
	}

	/**
	* 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 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) {

	fill(new Rectangle2D.Float(x, y, width, height), getBackground());
	}

	/**
	* 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 + width</code>,
	* respectively. The top and bottom edges of the rectangle are at
	* <code>y</code> and <code>y + 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) {

	draw(new RoundRectangle2D.Float(x, y,
	width, height,
	arcWidth, arcHeight));
	}


	/**
	* Fills the specified rounded corner rectangle with the current color.
	* The left and right edges of the rectangle
	* are at <code>x</code> and <code>x + width - 1</code>,
	* respectively. The top and bottom edges of the rectangle are at
	* <code>y</code> and <code>y + height - 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) {

	fill(new RoundRectangle2D.Float(x, y,
	width, height,
	arcWidth, arcHeight));
	}

	/**
	* Draws the outline of an oval.
	* The result is a circle or ellipse that fits within the
	* rectangle specified by the <code>x</code>, <code>y</code>,
	* <code>width</code>, and <code>height</code> arguments.
	* <p>
	* The oval covers an area that is
	* <code>width + 1</code> pixels wide
	* and <code>height + 1</code> pixels tall.
	* @param x the <i>x</i> coordinate of the upper left
	* corner of the oval to be drawn.
	* @param y the <i>y</i> coordinate of the upper left
	* corner of the oval to be drawn.
	* @param width the width of the oval to be drawn.
	* @param height the height of the oval to be drawn.
	* @see java.awt.Graphics#fillOval
	* @since JDK1.0
	*/
	public void drawOval(int x, int y, int width, int height) {
	draw(new Ellipse2D.Float(x, y, width, height));
	}

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

	fill(new Ellipse2D.Float(x, y, width, height));
	}

	/**
	* Draws the outline of a circular or elliptical arc
	* covering the specified rectangle.
	* <p>
	* The resulting arc begins at <code>startAngle</code> and extends
	* for <code>arcAngle</code> 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.
	* <p>
	* The center of the arc is the center of the rectangle whose origin
	* is (<i>x</i>, <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 + 1</code> pixels wide
	* by <code>height + 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) {
	draw(new Arc2D.Float(x, y, width, height,
	startAngle, arcAngle,
	Arc2D.OPEN));
	}


	/**
	* 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 degrees
	* is at the 3 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>, <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 + 1</code> pixels wide
	* by <code>height + 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) {

	fill(new Arc2D.Float(x, y, width, height,
	startAngle, arcAngle,
	Arc2D.PIE));
	}

	/**
	* Draws a sequence of connected lines defined by
	* arrays of <i>x</i> and <i>y</i> coordinates.
	* Each pair of (<i>x</i>, <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) {
	float fromX;
	float fromY;
	float toX;
	float toY;

	if (nPoints > 0) {
	fromX = xPoints[0];
	fromY = yPoints[0];
	for(int i = 1; i < nPoints; i++) {
	toX = xPoints[i];
	toY = yPoints[i];
	draw(new Line2D.Float(fromX, fromY, toX, toY));
	fromX = toX;
	fromY = toY;
	}
	}

	}


	/**
	* Draws a closed polygon defined by
	* arrays of <i>x</i> and <i>y</i> coordinates.
	* Each pair of (<i>x</i>, <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 - 1</code>
	* line segments are line segments from
	* <code>(xPoints[i - 1], yPoints[i - 1])</code>
	* to <code>(xPoints[i], yPoints[i])</code>, for
	* 1 ≤ <i>i</i> ≤ <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
	* @see java.awt.Graphics#drawPolyline
	*/
	public void drawPolygon(int xPoints[], int yPoints[],
	int nPoints) {

	draw(new Polygon(xPoints, yPoints, nPoints));
	}

	/**
	* Draws the outline of a polygon defined by the specified
	* <code>Polygon</code> object.
	* @param p the polygon to draw.
	* @see java.awt.Graphics#fillPolygon
	* @see java.awt.Graphics#drawPolyline
	*/
	public void drawPolygon(Polygon p) {
	draw(p);
	}

	/**
	* 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 - 1</code>
	* line segments are line segments from
	* <code>(xPoints[i - 1], yPoints[i - 1])</code>
	* to <code>(xPoints[i], yPoints[i])</code>, for
	* 1 ≤ <i>i</i> ≤ <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) {

	fill(new Polygon(xPoints, yPoints, nPoints));
	}


	/**
	* Fills the polygon defined by the specified Polygon object with
	* the graphics context's current color.
	* <p>
	* The area inside the polygon is defined using an
	* even-odd fill rule, also known as the alternating rule.
	* @param p the polygon to fill.
	* @see java.awt.Graphics#drawPolygon(int[], int[], int)
	*/
	public void fillPolygon(Polygon p) {

	fill(p);
	}

	/**
	* 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>, <i>y</i>) in this
	* graphics context's coordinate system.
	* @param str the string to be drawn.
	* @param x the <i>x</i> coordinate.
	* @param y the <i>y</i> coordinate.
	* @see java.awt.Graphics#drawBytes
	* @see java.awt.Graphics#drawChars
	* @since JDK1.0
	*/
	public void drawString(String str, int x, int y) {
	drawString(str, (float) x, (float) y);
	}

	public void drawString(String str, float x, float y) {
	if (str.length() == 0) {
	return;
	}
	TextLayout layout =
	new TextLayout(str, getFont(), getFontRenderContext());
	layout.draw(this, x, y);
	}

	protected void drawString(String str, float x, float y,
	Font font, FontRenderContext frc, float w) {
	TextLayout layout =
	new TextLayout(str, font, frc);
	Shape textShape =
	layout.getOutline(AffineTransform.getTranslateInstance(x, y));
	fill(textShape);
	}

	/**
	* 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>, <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);
	}
	public void drawString(AttributedCharacterIterator iterator,
	float x, float y) {
	if (iterator == null) {
	throw
	new NullPointerException("attributedcharacteriterator is null");
	}
	TextLayout layout =
	new TextLayout(iterator, getFontRenderContext());
	layout.draw(this, x, y);
	}

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

	/* We should not reach here if printingGlyphVector is already true.
	* Add an assert so this can be tested if need be.
	* But also ensure that we do at least render properly by filling
	* the outline.
	*/
	if (printingGlyphVector) {
	assert !printingGlyphVector; // ie false.
	fill(g.getOutline(x, y));
	return;
	}

	try {
	printingGlyphVector = true;
	if (RasterPrinterJob.shapeTextProp \|\|
	!printedSimpleGlyphVector(g, x, y)) {
	fill(g.getOutline(x, y));
	}
	} finally {
	printingGlyphVector = false;
	}
	}

	protected static SoftReference<Hashtable<Font2DHandle,Object>>
	fontMapRef = new SoftReference<Hashtable<Font2DHandle,Object>>(null);

	protected int platformFontCount(Font font, String str) {
	return 0;
	}

	/**
	* Default implementation returns false.
	* Callers of this method must always be prepared for this,
	* and delegate to outlines or some other solution.
	*/
	protected boolean printGlyphVector(GlyphVector gv, float x, float y) {
	return false;
	}

	/* GlyphVectors are usually encountered because TextLayout is in use.
	* Some times TextLayout is needed to handle complex text or some
	* rendering attributes trigger it.
	* We try to print GlyphVectors by reconstituting into a String,
	* as that is most recoverable for applications that export to formats
	* such as Postscript or PDF. In some cases (eg where its not complex
	* text and its just that positions aren't what we'd expect) we print
	* one character at a time. positioning individually.
	* Failing that, if we can directly send glyph codes to the printer
	* then we do that (printGlyphVector).
	* As a last resort we return false and let the caller print as filled
	* shapes.
	*/
	boolean printedSimpleGlyphVector(GlyphVector g, float x, float y) {

	int flags = g.getLayoutFlags();

	/* We can't handle RTL, re-ordering, complex glyphs etc by
	* reconstituting glyphs into a String. So if any flags besides
	* position adjustments are set, see if we can directly
	* print the GlyphVector as glyph codes, using the positions
	* layout has assigned. If that fails return false;
	*/
	if (flags != 0 && flags != GlyphVector.FLAG_HAS_POSITION_ADJUSTMENTS) {
	return printGlyphVector(g, x, y);
	}

	Font font = g.getFont();
	Font2D font2D = FontUtilities.getFont2D(font);
	if (font2D.handle.font2D != font2D) {
	/* suspicious, may be a bad font. lets bail */
	return false;
	}
	Hashtable<Font2DHandle,Object> fontMap;
	synchronized (PathGraphics.class) {
	fontMap = fontMapRef.get();
	if (fontMap == null) {
	fontMap = new Hashtable<Font2DHandle,Object>();
	fontMapRef =
	new SoftReference<Hashtable<Font2DHandle,Object>>(fontMap);
	}
	}

	int numGlyphs = g.getNumGlyphs();
	int[] glyphCodes = g.getGlyphCodes(0, numGlyphs, null);

	char[] glyphToCharMap = null;
	char[][] mapArray = null;
	CompositeFont cf = null;

	/* Build the needed maps for this font in a synchronized block */
	synchronized (fontMap) {
	if (font2D instanceof CompositeFont) {
	cf = (CompositeFont)font2D;
	int numSlots = cf.getNumSlots();
	mapArray = (char[][])fontMap.get(font2D.handle);
	if (mapArray == null) {
	mapArray = new char[numSlots][];
	fontMap.put(font2D.handle, mapArray);
	}
	for (int i=0; i<numGlyphs;i++) {
	int slot = glyphCodes[i] >>> 24;
	if (slot >= numSlots) { /* shouldn't happen */
	return false;
	}
	if (mapArray[slot] == null) {
	Font2D slotFont = cf.getSlotFont(slot);
	char[] map = (char[])fontMap.get(slotFont.handle);
	if (map == null) {
	map = getGlyphToCharMapForFont(slotFont);
	}
	mapArray[slot] = map;
	}
	}
	} else {
	glyphToCharMap = (char[])fontMap.get(font2D.handle);
	if (glyphToCharMap == null) {
	glyphToCharMap = getGlyphToCharMapForFont(font2D);
	fontMap.put(font2D.handle, glyphToCharMap);
	}
	}
	}

	char[] chars = new char[numGlyphs];
	if (cf != null) {
	for (int i=0; i<numGlyphs; i++) {
	int gc = glyphCodes[i];
	char[] map = mapArray[gc >>> 24];
	gc = gc & 0xffffff;
	if (map == null) {
	return false;
	}
	/* X11 symbol & dingbats fonts used only for global metrics,
	* so the glyph codes we have really refer to Lucida Sans
	* Regular.
	* So its possible the glyph code may appear out of range.
	* Note that later on we double-check the glyph codes that
	* we get from re-creating the GV from the string are the
	* same as those we started with.
	*
	* If the glyphcode is INVISIBLE_GLYPH_ID then this may
	* be \t, \n or \r which are mapped to that by layout.
	* This is a case we can handle. It doesn't matter what
	* character we use (we use \n) so long as layout maps it
	* back to this in the verification, since the invisible
	* glyph isn't visible :)
	*/
	char ch;
	if (gc == CharToGlyphMapper.INVISIBLE_GLYPH_ID) {
	ch = '\n';
	} else if (gc < 0 \|\| gc >= map.length) {
	return false;
	} else {
	ch = map[gc];
	}
	if (ch != CharToGlyphMapper.INVISIBLE_GLYPH_ID) {
	chars[i] = ch;
	} else {
	return false;
	}
	}
	} else {
	for (int i=0; i<numGlyphs; i++) {
	int gc = glyphCodes[i];
	char ch;
	if (gc == CharToGlyphMapper.INVISIBLE_GLYPH_ID) {
	ch = '\n';
	} else if (gc < 0 \|\| gc >= glyphToCharMap.length) {
	return false;
	} else {
	ch = glyphToCharMap[gc];
	}
	if (ch != CharToGlyphMapper.INVISIBLE_GLYPH_ID) {
	chars[i] = ch;
	} else {
	return false;
	}
	}
	}

	FontRenderContext gvFrc = g.getFontRenderContext();
	GlyphVector gv2 = font.createGlyphVector(gvFrc, chars);
	if (gv2.getNumGlyphs() != numGlyphs) {
	return printGlyphVector(g, x, y);
	}
	int[] glyphCodes2 = gv2.getGlyphCodes(0, numGlyphs, null);
	/*
	* Needed to double-check remapping of X11 symbol & dingbats.
	*/
	for (int i=0; i<numGlyphs; i++) {
	if (glyphCodes[i] != glyphCodes2[i]) {
	return printGlyphVector(g, x, y);
	}
	}

	FontRenderContext g2dFrc = getFontRenderContext();
	boolean compatibleFRC = gvFrc.equals(g2dFrc);
	/* If differ only in specifying A-A or a translation, these are
	* also compatible FRC's, and we can do one drawString call.
	*/
	if (!compatibleFRC &&
	gvFrc.usesFractionalMetrics() == g2dFrc.usesFractionalMetrics()) {
	AffineTransform gvAT = gvFrc.getTransform();
	AffineTransform g2dAT = getTransform();
	double[] gvMatrix = new double[4];
	double[] g2dMatrix = new double[4];
	gvAT.getMatrix(gvMatrix);
	g2dAT.getMatrix(g2dMatrix);
	compatibleFRC = true;
	for (int i=0;i<4;i++) {
	if (gvMatrix[i] != g2dMatrix[i]) {
	compatibleFRC = false;
	break;
	}
	}
	}

	String str = new String(chars, 0, numGlyphs);
	int numFonts = platformFontCount(font, str);
	if (numFonts == 0) {
	return false;
	}

	float[] positions = g.getGlyphPositions(0, numGlyphs, null);
	boolean noPositionAdjustments =
	((flags & GlyphVector.FLAG_HAS_POSITION_ADJUSTMENTS) == 0) \|\|
	samePositions(gv2, glyphCodes2, glyphCodes, positions);

	/* We have to consider that the application may be directly
	* creating a GlyphVector, rather than one being created by
	* TextLayout or indirectly from drawString. In such a case, if the
	* font has layout attributes, the text may measure differently
	* when we reconstitute it into a String and ask for the length that
	* drawString would use. For example, KERNING will be applied in such
	* a case but that Font attribute is not applied when the application
	* directly created a GlyphVector. So in this case we need to verify
	* that the text measures the same in both cases - ie that the
	* layout attribute has no effect. If it does we can't always
	* use the drawString call unless we can coerce the drawString call
	* into measuring and displaying the string to the same length.
	* That is the case where there is only one font used and we can
	* specify the overall advance of the string. (See below).
	*/

	Point2D gvAdvancePt = g.getGlyphPosition(numGlyphs);
	float gvAdvanceX = (float)gvAdvancePt.getX();
	boolean layoutAffectsAdvance = false;
	if (font.hasLayoutAttributes() && printingGlyphVector &&
	noPositionAdjustments) {

	/* If TRACKING is in use then the glyph vector will report
	* position adjustments, then that ought to be sufficient to
	* tell us we can't just ask native to do "drawString". But layout
	* always sets the position adjustment flag, so we don't believe
	* it and verify the positions are really different than
	* createGlyphVector() (with no layout) would create. However
	* inconsistently, TRACKING is applied when creating a GlyphVector,
	* since it doesn't actually require "layout" (even though its
	* considered a layout attribute), it just requires a fractional
	* tweak to the[default]advances. So we need to specifically
	* check for tracking until such time as as we can trust
	* the GlyphVector.FLAG_HAS_POSITION_ADJUSTMENTS bit.
	*/
	Map<TextAttribute, ?> map = font.getAttributes();
	Object o = map.get(TextAttribute.TRACKING);
	boolean tracking = o != null && (o instanceof Number) &&
	(((Number)o).floatValue() != 0f);

	if (tracking) {
	noPositionAdjustments = false;
	} else {
	Rectangle2D bounds = font.getStringBounds(str, gvFrc);
	float strAdvanceX = (float)bounds.getWidth();
	if (Math.abs(strAdvanceX - gvAdvanceX) > 0.00001) {
	layoutAffectsAdvance = true;
	}
	}
	}

	if (compatibleFRC && noPositionAdjustments && !layoutAffectsAdvance) {
	drawString(str, x, y, font, gvFrc, 0f);
	return true;
	}

	/* If positions have not been explicitly assigned, we can
	* ask the string to be drawn adjusted to this width.
	* This call is supported only in the PS generator.
	* GDI has API to specify the advance for each glyph in a
	* string which could be used here too, but that is not yet
	* implemented, and we'd need to update the signature of the
	* drawString method to take the advances (ie relative positions)
	* and use that instead of the width.
	*/
	if (numFonts == 1 && canDrawStringToWidth() && noPositionAdjustments) {
	drawString(str, x, y, font, gvFrc, gvAdvanceX);
	return true;
	}

	/* In some scripts chars drawn individually do not have the
	* same representation (glyphs) as when combined with other chars.
	* The logic here is erring on the side of caution, in particular
	* in including supplementary characters.
	*/
	if (FontUtilities.isComplexText(chars, 0, chars.length)) {
	return printGlyphVector(g, x, y);
	}

	/* If we reach here we have mapped all the glyphs back
	* one-to-one to simple unicode chars that we know are in the font.
	* We can call "drawChars" on each one of them in turn, setting
	* the position based on the glyph positions.
	* There's typically overhead in this. If numGlyphs is 'large',
	* it may even be better to try printGlyphVector() in this case.
	* This may be less recoverable for apps, but sophisticated apps
	* should be able to recover the text from simple glyph vectors
	* and we can avoid penalising the more common case - although
	* this is already a minority case.
	*/
	if (numGlyphs > 10 && printGlyphVector(g, x, y)) {
	return true;
	}

	for (int i=0; i<numGlyphs; i++) {
	String s = new String(chars, i, 1);
	drawString(s, x+positions[i2], y+positions[i2+1],
	font, gvFrc, 0f);
	}
	return true;
	}

	/* The same codes must be in the same positions for this to return true.
	* This would look cleaner if it took the original GV as a parameter but
	* we already have the codes and will need to get the positions array
	* too in most cases anyway. So its cheaper to pass them in.
	* This call wouldn't be necessary if layout didn't always set the
	* FLAG_HAS_POSITION_ADJUSTMENTS even if the default advances are used
	* and there was no re-ordering (this should be fixed some day).
	*/
	private boolean samePositions(GlyphVector gv, int[] gvcodes,
	int[] origCodes, float[] origPositions) {

	int numGlyphs = gv.getNumGlyphs();
	float[] gvpos = gv.getGlyphPositions(0, numGlyphs, null);

	/* this shouldn't happen here, but just in case */
	if (numGlyphs != gvcodes.length \|\| /* real paranoia here */
	origCodes.length != gvcodes.length \|\|
	origPositions.length != gvpos.length) {
	return false;
	}

	for (int i=0; i<numGlyphs; i++) {
	if (gvcodes[i] != origCodes[i] \|\| gvpos[i] != origPositions[i]) {
	return false;
	}
	}
	return true;
	}

	protected boolean canDrawStringToWidth() {
	return false;
	}

	/* return an array which can map glyphs back to char codes.
	* Glyphs which aren't mapped from a simple unicode code point
	* will have no mapping in this array, and will be assumed to be
	* because of some substitution that we can't handle.
	*/
	private static char[] getGlyphToCharMapForFont(Font2D font2D) {
	/* NB Composites report the number of glyphs in slot 0.
	* So if a string uses a char from a later slot, or a fallback slot,
	* it will not be able to use this faster path.
	*/
	int numGlyphs = font2D.getNumGlyphs();
	int missingGlyph = font2D.getMissingGlyphCode();
	char[] glyphToCharMap = new char[numGlyphs];
	int glyph;

	for (int i=0;i<numGlyphs; i++) {
	glyphToCharMap[i] = CharToGlyphMapper.INVISIBLE_GLYPH_ID;
	}

	/* Consider refining the ranges to try to map by asking the font
	* what ranges it supports.
	* Since a glyph may be mapped by multiple code points, and this
	* code can't handle that, we always prefer the earlier code point.
	*/
	for (char c=0; c<0xFFFF; c++) {
	if (c >= CharToGlyphMapper.HI_SURROGATE_START &&
	c <= CharToGlyphMapper.LO_SURROGATE_END) {
	continue;
	}
	glyph = font2D.charToGlyph(c);
	if (glyph != missingGlyph &&
	glyph >= 0 && glyph < numGlyphs &&
	(glyphToCharMap[glyph] ==
	CharToGlyphMapper.INVISIBLE_GLYPH_ID)) {
	glyphToCharMap[glyph] = c;
	}
	}
	return glyphToCharMap;
	}

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

	fill(getStroke().createStrokedShape(s));
	}

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

	try {
	fill(s, (Color) paint);

	/* The PathGraphics class only supports filling with
	* solid colors and so we do not expect the cast of Paint
	* to Color to fail. If it does fail then something went
	* wrong, like the app draw a page with a solid color but
	* then redrew it with a Gradient.
	*/
	} catch (ClassCastException e) {
	throw new IllegalArgumentException("Expected a Color instance");
	}
	}

	public void fill(Shape s, Color color) {
	AffineTransform deviceTransform = getTransform();

	if (getClip() != null) {
	deviceClip(getClip().getPathIterator(deviceTransform));
	}
	deviceFill(s.getPathIterator(deviceTransform), color);
	}

	/**
	* Fill the path defined by <code>pathIter</code>
	* with the specified color.
	* The path is provided in device coordinates.
	*/
	protected abstract void deviceFill(PathIterator pathIter, Color color);

	/*
	* Set the clipping path to that defined by
	* the passed in <code>PathIterator</code>.
	*/
	protected abstract void deviceClip(PathIterator pathIter);

	/*
	* Draw the outline of the rectangle without using path
	* if supported by platform.
	*/
	protected abstract void deviceFrameRect(int x, int y,
	int width, int height,
	Color color);

	/*
	* Draw a line without using path if supported by platform.
	*/
	protected abstract void deviceDrawLine(int xBegin, int yBegin,
	int xEnd, int yEnd, Color color);

	/*
	* Fill a rectangle using specified color.
	*/
	protected abstract void deviceFillRect(int x, int y,
	int width, int height, Color color);

	/* Obtain a BI from known implementations of java.awt.Image
	*/
	protected BufferedImage getBufferedImage(Image img) {
	if (img instanceof BufferedImage) {
	// Otherwise we expect a BufferedImage to behave as a standard BI
	return (BufferedImage)img;
	} else if (img instanceof ToolkitImage) {
	// This can be null if the image isn't loaded yet.
	// This is fine as in that case our caller will return
	// as it will only draw a fully loaded image
	return ((ToolkitImage)img).getBufferedImage();
	} else if (img instanceof VolatileImage) {
	// VI needs to make a new BI: this is unavoidable but
	// I don't expect VI's to be "huge" in any case.
	return ((VolatileImage)img).getSnapshot();
	} else {
	// may be null or may be some non-standard Image which
	// shouldn't happen as Image is implemented by the platform
	// not by applications
	// If you add a new Image implementation to the platform you
	// will need to support it here similarly to VI.
	return null;
	}
	}

	/**
	* Return true if the BufferedImage argument has non-opaque
	* bits in it and therefore can not be directly rendered by
	* GDI. Return false if the image is opaque. If this function
	* can not tell for sure whether the image has transparent
	* pixels then it assumes that it does.
	*/
	protected boolean hasTransparentPixels(BufferedImage bufferedImage) {
	ColorModel colorModel = bufferedImage.getColorModel();
	boolean hasTransparency = colorModel == null
	? true
	: colorModel.getTransparency() != ColorModel.OPAQUE;

	/*
	* For the default INT ARGB check the image to see if any pixels are
	* really transparent. If there are no transparent pixels then the
	* transparency of the color model can be ignored.
	* We assume that IndexColorModel images have already been
	* checked for transparency and will be OPAQUE unless they actually
	* have transparent pixels present.
	*/
	if (hasTransparency && bufferedImage != null) {
	if (bufferedImage.getType()==BufferedImage.TYPE_INT_ARGB \|\|
	bufferedImage.getType()==BufferedImage.TYPE_INT_ARGB_PRE) {
	DataBuffer db = bufferedImage.getRaster().getDataBuffer();
	SampleModel sm = bufferedImage.getRaster().getSampleModel();
	if (db instanceof DataBufferInt &&
	sm instanceof SinglePixelPackedSampleModel) {
	SinglePixelPackedSampleModel psm =
	(SinglePixelPackedSampleModel)sm;
	// Stealing the data array for reading only...
	int[] int_data =
	SunWritableRaster.stealData((DataBufferInt) db, 0);
	int x = bufferedImage.getMinX();
	int y = bufferedImage.getMinY();
	int w = bufferedImage.getWidth();
	int h = bufferedImage.getHeight();
	int stride = psm.getScanlineStride();
	boolean hastranspixel = false;
	for (int j = y; j < y+h; j++) {
	int yoff = j * stride;
	for (int i = x; i < x+w; i++) {
	if ((int_data[yoff+i] & 0xff000000)!=0xff000000 ) {
	hastranspixel = true;
	break;
	}
	}
	if (hastranspixel) {
	break;
	}
	}
	if (hastranspixel == false) {
	hasTransparency = false;
	}
	}
	}
	}

	return hasTransparency;
	}

	protected boolean isBitmaskTransparency(BufferedImage bufferedImage) {
	ColorModel colorModel = bufferedImage.getColorModel();
	return (colorModel != null &&
	colorModel.getTransparency() == ColorModel.BITMASK);
	}


	/* An optimisation for the special case of ICM images which have
	* bitmask transparency.
	*/
	protected boolean drawBitmaskImage(BufferedImage bufferedImage,
	AffineTransform xform,
	Color bgcolor,
	int srcX, int srcY,
	int srcWidth, int srcHeight) {

	ColorModel colorModel = bufferedImage.getColorModel();
	IndexColorModel icm;
	int [] pixels;

	if (!(colorModel instanceof IndexColorModel)) {
	return false;
	} else {
	icm = (IndexColorModel)colorModel;
	}

	if (colorModel.getTransparency() != ColorModel.BITMASK) {
	return false;
	}

	// to be compatible with 1.1 printing which treated b/g colors
	// with alpha 128 as opaque
	if (bgcolor != null && bgcolor.getAlpha() < 128) {
	return false;
	}

	if ((xform.getType()
	& ~( AffineTransform.TYPE_UNIFORM_SCALE
	\| AffineTransform.TYPE_TRANSLATION
	\| AffineTransform.TYPE_QUADRANT_ROTATION
	)) != 0) {
	return false;
	}

	if ((getTransform().getType()
	& ~( AffineTransform.TYPE_UNIFORM_SCALE
	\| AffineTransform.TYPE_TRANSLATION
	\| AffineTransform.TYPE_QUADRANT_ROTATION
	)) != 0) {
	return false;
	}

	BufferedImage subImage = null;
	Raster raster = bufferedImage.getRaster();
	int transpixel = icm.getTransparentPixel();
	byte[] alphas = new byte[icm.getMapSize()];
	icm.getAlphas(alphas);
	if (transpixel >= 0) {
	alphas[transpixel] = 0;
	}

	/* don't just use srcWidth & srcHeight from application - they
	* may exceed the extent of the image - may need to clip.
	* The image xform will ensure that points are still mapped properly.
	*/
	int rw = raster.getWidth();
	int rh = raster.getHeight();
	if (srcX > rw \|\| srcY > rh) {
	return false;
	}
	int right, bottom, wid, hgt;
	if (srcX+srcWidth > rw) {
	right = rw;
	wid = right - srcX;
	} else {
	right = srcX+srcWidth;
	wid = srcWidth;
	}
	if (srcY+srcHeight > rh) {
	bottom = rh;
	hgt = bottom - srcY;
	} else {
	bottom = srcY+srcHeight;
	hgt = srcHeight;
	}
	pixels = new int[wid];
	for (int j=srcY; j<bottom; j++) {
	int startx = -1;
	raster.getPixels(srcX, j, wid, 1, pixels);
	for (int i=srcX; i<right; i++) {
	if (alphas[pixels[i-srcX]] == 0) {
	if (startx >=0) {
	subImage = bufferedImage.getSubimage(startx, j,
	i-startx, 1);
	xform.translate(startx, j);
	drawImageToPlatform(subImage, xform, bgcolor,
	0, 0, i-startx, 1, true);
	xform.translate(-startx, -j);
	startx = -1;
	}
	} else if (startx < 0) {
	startx = i;
	}
	}
	if (startx >= 0) {
	subImage = bufferedImage.getSubimage(startx, j,
	right - startx, 1);
	xform.translate(startx, j);
	drawImageToPlatform(subImage, xform, bgcolor,
	0, 0, right - startx, 1, true);
	xform.translate(-startx, -j);
	}
	}
	return true;
	}



	/**
	* The various <code>drawImage()</code> methods for
	* <code>PathGraphics</code> are all decomposed
	* into an invocation of <code>drawImageToPlatform</code>.
	* The portion of the passed in image defined by
	* <code>srcX, srcY, srcWidth, and srcHeight</code>
	* is transformed by the supplied AffineTransform and
	* drawn using PS to the printer context.
	*
	* @param img The image to be drawn.
	* This method does nothing if <code>img</code> is null.
	* @param xform Used to transform the image before drawing.
	* This can be null.
	* @param bgcolor This color is drawn where the image has transparent
	* pixels. If this parameter is null then the
	* pixels already in the destination should show
	* through.
	* @param srcX With srcY this defines the upper-left corner
	* of the portion of the image to be drawn.
	*
	* @param srcY With srcX this defines the upper-left corner
	* of the portion of the image to be drawn.
	* @param srcWidth The width of the portion of the image to
	* be drawn.
	* @param srcHeight The height of the portion of the image to
	* be drawn.
	* @param handlingTransparency if being recursively called to
	* print opaque region of transparent image
	*/
	protected abstract boolean
	drawImageToPlatform(Image img, AffineTransform xform,
	Color bgcolor,
	int srcX, int srcY,
	int srcWidth, int srcHeight,
	boolean handlingTransparency);

	/**
	* Draws as much of the specified image as is currently available.
	* The image is drawn with its top-left corner at
	* (<i>x</i>, <i>y</i>) in this graphics context's coordinate
	* space. Transparent pixels in the image do not affect whatever
	* pixels are already there.
	* <p>
	* This method returns immediately in all cases, even if the
	* complete image has not yet been loaded, and it has not been dithered
	* and converted for the current output device.
	* <p>
	* If the image has not yet been completely loaded, then
	* <code>drawImage</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 observer object to be notified as more of
	* the image is converted.
	* @see java.awt.Image
	* @see java.awt.image.ImageObserver
	* @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
	* @since JDK1.0
	*/
	public boolean drawImage(Image img, int x, int y,
	ImageObserver observer) {

	return drawImage(img, x, y, null, observer);
	}

	/**
	* Draws as much of the specified image as has already been scaled
	* to fit inside the specified rectangle.
	* <p>
	* The image is drawn inside the specified rectangle of this
	* graphics context's coordinate space, and is scaled if
	* necessary. Transparent pixels do not affect whatever pixels
	* are already there.
	* <p>
	* This method returns immediately in all cases, even if the
	* entire image has not yet been scaled, dithered, and converted
	* for the current output device.
	* If the current output representation is not yet complete, then
	* <code>drawImage</code> returns <code>false</code>. As more of
	* the image becomes available, the process that draws the image notifies
	* the image observer by calling its <code>imageUpdate</code> method.
	* <p>
	* A scaled version of an image will not necessarily be
	* available immediately just because an unscaled version of the
	* image has been constructed for this output device. Each size of
	* the image may be cached separately and generated from the original
	* data in a separate image production sequence.
	* @param img the specified image to be drawn.
	* @param x the <i>x</i> coordinate.
	* @param y the <i>y</i> coordinate.
	* @param width the width of the rectangle.
	* @param height the height of the rectangle.
	* @param observer object to be notified as more of
	* the image is converted.
	* @see java.awt.Image
	* @see java.awt.image.ImageObserver
	* @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
	* @since JDK1.0
	*/
	public boolean drawImage(Image img, int x, int y,
	int width, int height,
	ImageObserver observer) {

	return drawImage(img, x, y, width, height, null, observer);

	}

	/*
	* Draws as much of the specified image as is currently available.
	* The image is drawn with its top-left corner at
	* (<i>x</i>, <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.
	* This method does nothing if <code>img</code> is null.
	* @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.
	* In this WPathGraphics implementation,
	* this parameter can be null in which
	* case that background is made a transparent
	* white.
	* @param observer object to be notified as more of
	* the image is converted.
	* @see java.awt.Image
	* @see java.awt.image.ImageObserver
	* @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
	* @since JDK1.0
	*/
	public boolean drawImage(Image img, int x, int y,
	Color bgcolor,
	ImageObserver observer) {

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

	boolean result;
	int srcWidth = img.getWidth(null);
	int srcHeight = img.getHeight(null);

	if (srcWidth < 0 \|\| srcHeight < 0) {
	result = false;
	} else {
	result = drawImage(img, x, y, srcWidth, srcHeight, bgcolor, observer);
	}

	return result;
	}

	/**
	* Draws as much of the specified image as has already been scaled
	* to fit inside the specified rectangle.
	* <p>
	* The image is drawn inside the specified rectangle of this
	* graphics context's coordinate space, and is scaled if
	* necessary. Transparent pixels are drawn in the specified
	* background color.
	* This operation is equivalent to filling a rectangle of the
	* width and height of the specified image with the given color and then
	* drawing the image on top of it, but possibly more efficient.
	* <p>
	* This method returns immediately in all cases, even if the
	* entire image has not yet been scaled, dithered, and converted
	* for the current output device.
	* If the current output representation is not yet complete then
	* <code>drawImage</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.
	* This method does nothing if <code>img</code> is null.
	* @param x the <i>x</i> coordinate.
	* @param y the <i>y</i> coordinate.
	* @param width the width of the rectangle.
	* @param height the height of the rectangle.
	* @param bgcolor the background color to paint under the
	* non-opaque portions of the image.
	* @param observer object to be notified as more of
	* the image is converted.
	* @see java.awt.Image
	* @see java.awt.image.ImageObserver
	* @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
	* @since JDK1.0
	*/
	public boolean drawImage(Image img, int x, int y,
	int width, int height,
	Color bgcolor,
	ImageObserver observer) {

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

	boolean result;
	int srcWidth = img.getWidth(null);
	int srcHeight = img.getHeight(null);

	if (srcWidth < 0 \|\| srcHeight < 0) {
	result = false;
	} else {
	result = drawImage(img,
	x, y, x + width, y + height,
	0, 0, srcWidth, srcHeight,
	observer);
	}

	return result;
	}

	/**
	* Draws as much of the specified area of the specified image as is
	* currently available, scaling it on the fly to fit inside the
	* specified area of the destination drawable surface. Transparent pixels
	* do not affect whatever pixels are already there.
	* <p>
	* This method returns immediately in all cases, even if the
	* image area to be drawn has not yet been scaled, dithered, and converted
	* for the current output device.
	* If the current output representation is not yet complete then
	* <code>drawImage</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) {

	return drawImage(img,
	dx1, dy1, dx2, dy2,
	sx1, sy1, sx2, sy2,
	null, observer);
	}

	/**
	* Draws as much of the specified area of the specified image as is
	* currently available, scaling it on the fly to fit inside the
	* specified area of the destination drawable surface.
	* <p>
	* Transparent pixels are drawn in the specified background color.
	* This operation is equivalent to filling a rectangle of the
	* width and height of the specified image with the given color and then
	* drawing the image on top of it, but possibly more efficient.
	* <p>
	* This method returns immediately in all cases, even if the
	* image area to be drawn has not yet been scaled, dithered, and converted
	* for the current output device.
	* If the current output representation is not yet complete then
	* <code>drawImage</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
	* This method does nothing if <code>img</code> is null.
	* @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) {

	if (img == null) {
	return true;
	}
	int imgWidth = img.getWidth(null);
	int imgHeight = img.getHeight(null);

	if (imgWidth < 0 \|\| imgHeight < 0) {
	return true;
	}

	int srcWidth = sx2 - sx1;
	int srcHeight = sy2 - sy1;

	/* Create a transform which describes the changes
	* from the source coordinates to the destination
	* coordinates. The scaling is determined by the
	* ratio of the two rectangles, while the translation
	* comes from the difference of their origins.
	*/
	float scalex = (float) (dx2 - dx1) / srcWidth;
	float scaley = (float) (dy2 - dy1) / srcHeight;
	AffineTransform xForm
	= new AffineTransform(scalex,
	0,
	0,
	scaley,
	dx1 - (sx1 * scalex),
	dy1 - (sy1 * scaley));

	/* drawImageToPlatform needs the top-left of the source area and
	* a positive width and height. The xform describes how to map
	* src->dest, so that information is not lost.
	*/
	int tmp=0;
	if (sx2 < sx1) {
	tmp = sx1;
	sx1 = sx2;
	sx2 = tmp;
	}
	if (sy2 < sy1) {
	tmp = sy1;
	sy1 = sy2;
	sy2 = tmp;
	}

	/* if src area is beyond the bounds of the image, we must clip it.
	* The transform is based on the specified area, not the clipped one.
	*/
	if (sx1 < 0) {
	sx1 = 0;
	} else if (sx1 > imgWidth) { // empty srcArea, nothing to draw
	sx1 = imgWidth;
	}
	if (sx2 < 0) { // empty srcArea, nothing to draw
	sx2 = 0;
	} else if (sx2 > imgWidth) {
	sx2 = imgWidth;
	}
	if (sy1 < 0) {
	sy1 = 0;
	} else if (sy1 > imgHeight) { // empty srcArea
	sy1 = imgHeight;
	}
	if (sy2 < 0) { // empty srcArea
	sy2 = 0;
	} else if (sy2 > imgHeight) {
	sy2 = imgHeight;
	}

	srcWidth = sx2 - sx1;
	srcHeight = sy2 - sy1;

	if (srcWidth <= 0 \|\| srcHeight <= 0) {
	return true;
	}

	return drawImageToPlatform(img, xForm, bgcolor,
	sx1, sy1, srcWidth, srcHeight, false);


	}

	/**
	* Draws an image, applying a transform from image space into user space
	* before drawing.
	* The transformation from user space into device space is done with
	* the current transform in the Graphics2D.
	* The given transformation is applied to the image before the
	* transform attribute in the Graphics2D state is applied.
	* The rendering attributes applied include the clip, transform,
	* and composite attributes. Note that the result is
	* undefined, if the given transform is noninvertible.
	* @param img The image to be drawn.
	* This method does nothing if <code>img</code> is null.
	* @param xform The transformation from image space into user space.
	* @param obs The image observer to be notified as more of the image
	* is converted.
	* @see #transform
	* @see #setTransform
	* @see #setComposite
	* @see #clip
	* @see #setClip
	*/
	public boolean drawImage(Image img,
	AffineTransform xform,
	ImageObserver obs) {

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

	boolean result;
	int srcWidth = img.getWidth(null);
	int srcHeight = img.getHeight(null);

	if (srcWidth < 0 \|\| srcHeight < 0) {
	result = false;
	} else {
	result = drawImageToPlatform(img, xform, null,
	0, 0, srcWidth, srcHeight, false);
	}

	return result;
	}

	/**
	* Draws a BufferedImage that is filtered with a BufferedImageOp.
	* The rendering attributes applied include the clip, transform
	* and composite attributes. This is equivalent to:
	* <pre>
	* img1 = op.filter(img, null);
	* drawImage(img1, new AffineTransform(1f,0f,0f,1f,x,y), null);
	* </pre>
	* @param op The filter to be applied to the image before drawing.
	* @param img The BufferedImage to be drawn.
	* This method does nothing if <code>img</code> is null.
	* @param x,y The location in user space where the image should be drawn.
	* @see #transform
	* @see #setTransform
	* @see #setComposite
	* @see #clip
	* @see #setClip
	*/
	public void drawImage(BufferedImage img,
	BufferedImageOp op,
	int x,
	int y) {

	if (img == null) {
	return;
	}

	int srcWidth = img.getWidth(null);
	int srcHeight = img.getHeight(null);

	if (op != null) {
	img = op.filter(img, null);
	}
	if (srcWidth <= 0 \|\| srcHeight <= 0) {
	return;
	} else {
	AffineTransform xform = new AffineTransform(1f,0f,0f,1f,x,y);
	drawImageToPlatform(img, xform, null,
	0, 0, srcWidth, srcHeight, false);
	}

	}

	/**
	* Draws an image, applying a transform from image space into user space
	* before drawing.
	* The transformation from user space into device space is done with
	* the current transform in the Graphics2D.
	* The given transformation is applied to the image before the
	* transform attribute in the Graphics2D state is applied.
	* The rendering attributes applied include the clip, transform,
	* and composite attributes. Note that the result is
	* undefined, if the given transform is noninvertible.
	* @param img The image to be drawn.
	* This method does nothing if <code>img</code> is null.
	* @param xform The transformation from image space into user space.
	* @see #transform
	* @see #setTransform
	* @see #setComposite
	* @see #clip
	* @see #setClip
	*/
	public void drawRenderedImage(RenderedImage img,
	AffineTransform xform) {

	if (img == null) {
	return;
	}

	BufferedImage bufferedImage = null;
	int srcWidth = img.getWidth();
	int srcHeight = img.getHeight();

	if (srcWidth <= 0 \|\| srcHeight <= 0) {
	return;
	}

	if (img instanceof BufferedImage) {
	bufferedImage = (BufferedImage) img;
	} else {
	bufferedImage = new BufferedImage(srcWidth, srcHeight,
	BufferedImage.TYPE_INT_ARGB);
	Graphics2D imageGraphics = bufferedImage.createGraphics();
	imageGraphics.drawRenderedImage(img, xform);
	}

	drawImageToPlatform(bufferedImage, xform, null,
	0, 0, srcWidth, srcHeight, false);

	}

	}

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