| /* |
| * 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.awt.geom.Path2D; |
| 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} and <code>x + width</code>. |
| * The top and bottom edges are at |
| * {@code y} 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} and <code>x + width - 1</code>. |
| * The top and bottom edges are at |
| * {@code y} and <code>y + height - 1</code>. |
| * The resulting rectangle covers an area |
| * {@code width} pixels wide by |
| * {@code height} pixels tall. |
| * The rectangle is filled using the graphics context's current color. |
| * @param x the <i>x</i> coordinate |
| * of the rectangle to be filled. |
| * @param y the <i>y</i> coordinate |
| * of the rectangle to be filled. |
| * @param width the width of the rectangle to be filled. |
| * @param height the height of the rectangle to be filled. |
| * @see java.awt.Graphics#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} followed by {@code fillRect} to |
| * ensure that an offscreen image is cleared to a specific color. |
| * @param x the <i>x</i> coordinate of the rectangle to clear. |
| * @param y the <i>y</i> coordinate of the rectangle to clear. |
| * @param width the width of the rectangle to clear. |
| * @param height the height of the rectangle to clear. |
| * @see java.awt.Graphics#fillRect(int, int, int, int) |
| * @see java.awt.Graphics#drawRect |
| * @see java.awt.Graphics#setColor(java.awt.Color) |
| * @see java.awt.Graphics#setPaintMode |
| * @see java.awt.Graphics#setXORMode(java.awt.Color) |
| */ |
| 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} and <code>x + width</code>, |
| * respectively. The top and bottom edges of the rectangle are at |
| * {@code y} 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} and <code>x + width - 1</code>, |
| * respectively. The top and bottom edges of the rectangle are at |
| * {@code y} 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 y}, |
| * {@code width}, and {@code height} 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 1.0 |
| */ |
| 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} and extends |
| * for {@code 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. |
| * <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} and {@code height} 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} and extends |
| * for {@code 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. |
| * <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} and {@code height} 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 1.1 |
| */ |
| public void drawPolyline(int xPoints[], int yPoints[], |
| int nPoints) { |
| |
| if (nPoints == 2) { |
| draw(new Line2D.Float(xPoints[0], yPoints[0], |
| xPoints[1], yPoints[1])); |
| } else if (nPoints > 2) { |
| Path2D path = new Path2D.Float(Path2D.WIND_EVEN_ODD, nPoints); |
| 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 <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} 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}. |
| * The figure is automatically closed by drawing a line connecting |
| * the final point to the first point, if those points are different. |
| * @param xPoints a an array of {@code x} coordinates. |
| * @param yPoints a an array of {@code y} coordinates. |
| * @param nPoints a the total number of points. |
| * @see java.awt.Graphics#fillPolygon |
| * @see java.awt.Graphics#drawPolyline |
| */ |
| 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} 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} 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}. |
| * The figure is automatically closed by drawing a line connecting |
| * the final point to the first point, if those points are different. |
| * <p> |
| * The area inside the polygon is defined using an |
| * even-odd fill rule, also known as the alternating rule. |
| * @param xPoints a an array of {@code x} coordinates. |
| * @param yPoints a an array of {@code y} coordinates. |
| * @param nPoints a the total number of points. |
| * @see java.awt.Graphics#drawPolygon(int[], int[], int) |
| */ |
| 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 1.0 |
| */ |
| 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 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[i*2], y+positions[i*2+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} |
| * 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}. |
| */ |
| 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()} methods for |
| * {@code PathGraphics} are all decomposed |
| * into an invocation of {@code drawImageToPlatform}. |
| * The portion of the passed in image defined by |
| * {@code srcX, srcY, srcWidth, and srcHeight} |
| * 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} 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} returns {@code false}. As more of |
| * the image becomes available, the process that draws the image notifies |
| * the specified image observer. |
| * @param img the specified image to be drawn. |
| * @param x the <i>x</i> coordinate. |
| * @param y the <i>y</i> coordinate. |
| * @param observer object to be notified as more of |
| * the image is converted. |
| * @see java.awt.Image |
| * @see java.awt.image.ImageObserver |
| * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) |
| * @since 1.0 |
| */ |
| public boolean drawImage(Image img, int x, int y, |
| ImageObserver observer) { |
| |
| return 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} returns {@code false}. As more of |
| * the image becomes available, the process that draws the image notifies |
| * the image observer by calling its {@code imageUpdate} method. |
| * <p> |
| * A scaled version of an image will not necessarily be |
| * available immediately just because an unscaled version of the |
| * image has been constructed for this output device. Each size of |
| * the image may be cached separately and generated from the original |
| * data in a separate image production sequence. |
| * @param img the specified image to be drawn. |
| * @param x the <i>x</i> coordinate. |
| * @param y the <i>y</i> coordinate. |
| * @param width the width of the rectangle. |
| * @param height the height of the rectangle. |
| * @param observer object to be notified as more of |
| * the image is converted. |
| * @see java.awt.Image |
| * @see java.awt.image.ImageObserver |
| * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) |
| * @since 1.0 |
| */ |
| public boolean drawImage(Image img, int x, int y, |
| int width, int height, |
| ImageObserver observer) { |
| |
| return 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} returns {@code false}. As more of |
| * the image becomes available, the process that draws the image notifies |
| * the specified image observer. |
| * @param img the specified image to be drawn. |
| * This method does nothing if {@code img} 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 1.0 |
| */ |
| 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} returns {@code false}. As more of |
| * the image becomes available, the process that draws the image notifies |
| * the specified image observer. |
| * <p> |
| * A scaled version of an image will not necessarily be |
| * available immediately just because an unscaled version of the |
| * image has been constructed for this output device. Each size of |
| * the image may be cached separately and generated from the original |
| * data in a separate image production sequence. |
| * @param img the specified image to be drawn. |
| * This method does nothing if {@code img} 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 1.0 |
| */ |
| public boolean drawImage(Image img, int x, int y, |
| int width, int height, |
| Color bgcolor, |
| ImageObserver observer) { |
| |
| if (img == null) { |
| return true; |
| } |
| |
| boolean result; |
| 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} returns {@code false}. As more of |
| * the image becomes available, the process that draws the image notifies |
| * the specified image observer. |
| * <p> |
| * This method always uses the unscaled version of the image |
| * to render the scaled rectangle and performs the required |
| * scaling on the fly. It does not use a cached, scaled version |
| * of the image for this operation. Scaling of the image from source |
| * to destination is performed such that the first coordinate |
| * of the source rectangle is mapped to the first coordinate of |
| * the destination rectangle, and the second source coordinate is |
| * mapped to the second destination coordinate. The subimage is |
| * scaled and flipped as needed to preserve those mappings. |
| * @param img the specified image to be drawn |
| * @param dx1 the <i>x</i> coordinate of the first corner of the |
| * destination rectangle. |
| * @param dy1 the <i>y</i> coordinate of the first corner of the |
| * destination rectangle. |
| * @param dx2 the <i>x</i> coordinate of the second corner of the |
| * destination rectangle. |
| * @param dy2 the <i>y</i> coordinate of the second corner of the |
| * destination rectangle. |
| * @param sx1 the <i>x</i> coordinate of the first corner of the |
| * source rectangle. |
| * @param sy1 the <i>y</i> coordinate of the first corner of the |
| * source rectangle. |
| * @param sx2 the <i>x</i> coordinate of the second corner of the |
| * source rectangle. |
| * @param sy2 the <i>y</i> coordinate of the second corner of the |
| * source rectangle. |
| * @param observer object to be notified as more of the image is |
| * scaled and converted. |
| * @see java.awt.Image |
| * @see java.awt.image.ImageObserver |
| * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) |
| * @since 1.1 |
| */ |
| public boolean drawImage(Image img, |
| int dx1, int dy1, int dx2, int dy2, |
| int sx1, int sy1, int sx2, int sy2, |
| ImageObserver observer) { |
| |
| return 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} returns {@code false}. As more of |
| * the image becomes available, the process that draws the image notifies |
| * the specified image observer. |
| * <p> |
| * This method always uses the unscaled version of the image |
| * to render the scaled rectangle and performs the required |
| * scaling on the fly. It does not use a cached, scaled version |
| * of the image for this operation. Scaling of the image from source |
| * to destination is performed such that the first coordinate |
| * of the source rectangle is mapped to the first coordinate of |
| * the destination rectangle, and the second source coordinate is |
| * mapped to the second destination coordinate. The subimage is |
| * scaled and flipped as needed to preserve those mappings. |
| * @param img the specified image to be drawn |
| * This method does nothing if {@code img} 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 1.1 |
| */ |
| public boolean drawImage(Image img, |
| int dx1, int dy1, int dx2, int dy2, |
| int sx1, int sy1, int sx2, int sy2, |
| Color bgcolor, |
| ImageObserver observer) { |
| |
| if (img == null) { |
| return true; |
| } |
| 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} 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} 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} 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); |
| |
| } |
| |
| } |