| /* | |
| * Copyright (c) 1998, 2024, 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 sun.awt.image.SunWritableRaster; | |
| import sun.awt.image.ToolkitImage; | |
| import sun.font.CharToGlyphMapper; | |
| import sun.font.CompositeFont; | |
| import sun.font.Font2D; | |
| import sun.font.Font2DHandle; | |
| import sun.font.FontUtilities; | |
| import java.awt.AlphaComposite; | |
| import java.awt.Color; | |
| import java.awt.Composite; | |
| import java.awt.Font; | |
| import java.awt.Graphics2D; | |
| import java.awt.Image; | |
| import java.awt.Paint; | |
| import java.awt.Polygon; | |
| import java.awt.Shape; | |
| 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.Path2D; | |
| import java.awt.geom.PathIterator; | |
| import java.awt.geom.Point2D; | |
| import java.awt.geom.Rectangle2D; | |
| import java.awt.geom.RoundRectangle2D; | |
| 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.MultiResolutionImage; | |
| 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 java.awt.print.PageFormat; | |
| import java.awt.print.Printable; | |
| import java.awt.print.PrinterException; | |
| import java.awt.print.PrinterJob; | |
| import java.lang.ref.SoftReference; | |
| import java.text.AttributedCharacterIterator; | |
| import java.util.Hashtable; | |
| 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 rectangular 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 an array of {@code x} coordinates. | |
| * @param yPoints an array of {@code y} coordinates. | |
| * @param nPoints 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 an array of {@code x} coordinates. | |
| * @param yPoints an array of {@code y} coordinates. | |
| * @param nPoints 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 instanceof Number n) && | |
| (n.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 "drawString" 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 we do use "drawString" on each character, we need to use a | |
| * font without translation transform, since the font translation | |
| * transform will already be reflected in the glyph positions, and | |
| * we do not want to apply the translation twice. | |
| */ | |
| if (numGlyphs > 10 && printGlyphVector(g, x, y)) { | |
| return true; | |
| } | |
| Font font2 = font; | |
| if (font.isTransformed()) { | |
| AffineTransform t = font.getTransform(); | |
| if ((t.getType() & AffineTransform.TYPE_TRANSLATION) != 0) { | |
| t.setTransform(t.getScaleX(), t.getShearY(), t.getShearX(), t.getScaleY(), 0, 0); | |
| font2 = font.deriveFont(t); | |
| } | |
| } | |
| 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], | |
| font2, 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 if (img instanceof MultiResolutionImage) { | |
| return convertToBufferedImage((MultiResolutionImage) img, | |
| img.getWidth(null), img.getHeight(null)); | |
| } 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; | |
| } | |
| } | |
| protected BufferedImage convertToBufferedImage(MultiResolutionImage multiResolutionImage, | |
| double width, double height ) { | |
| Image resolutionImage = multiResolutionImage.getResolutionVariant(width, height); | |
| BufferedImage bufferedImage = new BufferedImage(resolutionImage.getWidth(null), | |
| resolutionImage.getHeight(null), | |
| BufferedImage.TYPE_INT_ARGB); | |
| Graphics2D g2d = bufferedImage.createGraphics(); | |
| g2d.drawImage(resolutionImage, 0, 0, (int) width, (int) height, null); | |
| g2d.dispose(); | |
| return bufferedImage; | |
| } | |
| /** | |
| * 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); | |
| } | |
| protected boolean isCompositing(Composite composite) { | |
| boolean isCompositing = false; | |
| if (composite instanceof AlphaComposite) { | |
| AlphaComposite alphaComposite = (AlphaComposite) composite; | |
| float alpha = alphaComposite.getAlpha(); | |
| int rule = alphaComposite.getRule(); | |
| if (alpha != 1.0 | |
| || (rule != AlphaComposite.SRC | |
| && rule != AlphaComposite.SRC_OVER)) | |
| { | |
| isCompositing = true; | |
| } | |
| } else { | |
| isCompositing = true; | |
| } | |
| return isCompositing; | |
| } | |
| } |