| /* | |
| * Copyright (c) 1998, 2022, 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.util.Map; | |
| import java.awt.BasicStroke; | |
| import java.awt.Color; | |
| import java.awt.Composite; | |
| import java.awt.Graphics; | |
| import java.awt.Graphics2D; | |
| import java.awt.Font; | |
| import java.awt.FontMetrics; | |
| import java.awt.font.FontRenderContext; | |
| import java.awt.GraphicsConfiguration; | |
| import java.awt.Image; | |
| import java.awt.Paint; | |
| import java.awt.Rectangle; | |
| import java.awt.Shape; | |
| import java.awt.Stroke; | |
| import java.awt.RenderingHints; | |
| import java.awt.RenderingHints.Key; | |
| import java.awt.font.GlyphVector; | |
| import java.awt.font.TextLayout; | |
| import java.awt.geom.AffineTransform; | |
| import java.awt.geom.Line2D; | |
| import java.awt.geom.Rectangle2D; | |
| import java.awt.geom.RoundRectangle2D; | |
| import java.awt.image.BufferedImage; | |
| import java.awt.image.BufferedImageOp; | |
| import java.awt.image.ImageObserver; | |
| import java.awt.image.RenderedImage; | |
| import java.awt.image.renderable.RenderableImage; | |
| import java.awt.print.PrinterGraphics; | |
| import java.awt.print.PrinterJob; | |
| import java.text.AttributedCharacterIterator; | |
| import sun.java2d.Spans; | |
| public class PeekGraphics extends Graphics2D | |
| implements PrinterGraphics, | |
| ImageObserver, | |
| Cloneable { | |
| /** | |
| * Drawing methods will be forwarded to this object. | |
| */ | |
| Graphics2D mGraphics; | |
| /** | |
| * The PrinterJob controlling the current printing. | |
| */ | |
| PrinterJob mPrinterJob; | |
| /** | |
| * Keeps track of where drawing occurs on the page. | |
| */ | |
| private Spans mDrawingArea = new Spans(); | |
| /** | |
| * Track information about the types of drawing | |
| * performed by the printing application. | |
| */ | |
| private PeekMetrics mPrintMetrics = new PeekMetrics(); | |
| /** | |
| * If true the application will only be drawing AWT style | |
| * graphics, no Java2D graphics. | |
| */ | |
| private boolean mAWTDrawingOnly = false; | |
| /** | |
| * The new PeekGraphics2D will forward state changing | |
| * calls to 'graphics'. 'printerJob' is stored away | |
| * so that the printing application can get the PrinterJob | |
| * if needed. | |
| */ | |
| public PeekGraphics(Graphics2D graphics, PrinterJob printerJob) { | |
| mGraphics = graphics; | |
| mPrinterJob = printerJob; | |
| } | |
| /** | |
| * Return the Graphics2D object that does the drawing | |
| * for this instance. | |
| */ | |
| public Graphics2D getDelegate() { | |
| return mGraphics; | |
| } | |
| /** | |
| * Set the Graphics2D instance which will do the | |
| * drawing. | |
| */ | |
| public void setDelegate(Graphics2D graphics) { | |
| mGraphics = graphics; | |
| } | |
| public PrinterJob getPrinterJob() { | |
| return mPrinterJob; | |
| } | |
| /** | |
| * The caller promises that only AWT graphics will be drawn. | |
| * The print system can use this information to make general | |
| * assumptions about the types of graphics to be drawn without | |
| * requiring the application to draw the contents multiple | |
| * times. | |
| */ | |
| public void setAWTDrawingOnly() { | |
| mAWTDrawingOnly = true; | |
| } | |
| public boolean getAWTDrawingOnly() { | |
| return mAWTDrawingOnly; | |
| } | |
| /** | |
| * Return a Spans instance describing the parts of the page in | |
| * to which drawing occurred. | |
| */ | |
| public Spans getDrawingArea() { | |
| return mDrawingArea; | |
| } | |
| /** | |
| * Returns the device configuration associated with this Graphics2D. | |
| */ | |
| public GraphicsConfiguration getDeviceConfiguration() { | |
| return ((RasterPrinterJob)mPrinterJob).getPrinterGraphicsConfig(); | |
| } | |
| /* The Delegated Graphics Methods */ | |
| /** | |
| * Creates a new {@code Graphics} object that is | |
| * a copy of this {@code Graphics} object. | |
| * @return a new graphics context that is a copy of | |
| * this graphics context. | |
| * @since 1.0 | |
| */ | |
| public Graphics create() { | |
| PeekGraphics newGraphics = null; | |
| try { | |
| newGraphics = (PeekGraphics) clone(); | |
| newGraphics.mGraphics = (Graphics2D) mGraphics.create(); | |
| /* This exception can not happen unless this | |
| * class no longer implements the Cloneable | |
| * interface. | |
| */ | |
| } catch (CloneNotSupportedException e) { | |
| // can never happen. | |
| } | |
| return newGraphics; | |
| } | |
| /** | |
| * Translates the origin of the graphics context to the point | |
| * (<i>x</i>, <i>y</i>) in the current coordinate system. | |
| * Modifies this graphics context so that its new origin corresponds | |
| * to the point (<i>x</i>, <i>y</i>) in this graphics context's | |
| * original coordinate system. All coordinates used in subsequent | |
| * rendering operations on this graphics context will be relative | |
| * to this new origin. | |
| * @param x the <i>x</i> coordinate. | |
| * @param y the <i>y</i> coordinate. | |
| * @since 1.0 | |
| */ | |
| public void translate(int x, int y) { | |
| mGraphics.translate(x, y); | |
| } | |
| /** | |
| * Concatenates the current transform of this Graphics2D with a | |
| * translation transformation. | |
| * This is equivalent to calling transform(T), where T is an | |
| * AffineTransform represented by the following matrix: | |
| * <pre> | |
| * [ 1 0 tx ] | |
| * [ 0 1 ty ] | |
| * [ 0 0 1 ] | |
| * </pre> | |
| */ | |
| public void translate(double tx, double ty) { | |
| mGraphics.translate(tx, ty); | |
| } | |
| /** | |
| * Concatenates the current transform of this Graphics2D with a | |
| * rotation transformation. | |
| * This is equivalent to calling transform(R), where R is an | |
| * AffineTransform represented by the following matrix: | |
| * <pre> | |
| * [ cos(theta) -sin(theta) 0 ] | |
| * [ sin(theta) cos(theta) 0 ] | |
| * [ 0 0 1 ] | |
| * </pre> | |
| * Rotating with a positive angle theta rotates points on the positive | |
| * x axis toward the positive y axis. | |
| * @param theta The angle of rotation in radians. | |
| */ | |
| public void rotate(double theta) { | |
| mGraphics.rotate(theta); | |
| } | |
| /** | |
| * Concatenates the current transform of this Graphics2D with a | |
| * translated rotation transformation. | |
| * This is equivalent to the following sequence of calls: | |
| * <pre> | |
| * translate(x, y); | |
| * rotate(theta); | |
| * translate(-x, -y); | |
| * </pre> | |
| * Rotating with a positive angle theta rotates points on the positive | |
| * x axis toward the positive y axis. | |
| * @param theta The angle of rotation in radians. | |
| * @param x The x coordinate of the origin of the rotation | |
| * @param y The x coordinate of the origin of the rotation | |
| */ | |
| public void rotate(double theta, double x, double y) { | |
| mGraphics.rotate(theta, x, y); | |
| } | |
| /** | |
| * Concatenates the current transform of this Graphics2D with a | |
| * scaling transformation. | |
| * This is equivalent to calling transform(S), where S is an | |
| * AffineTransform represented by the following matrix: | |
| * <pre> | |
| * [ sx 0 0 ] | |
| * [ 0 sy 0 ] | |
| * [ 0 0 1 ] | |
| * </pre> | |
| */ | |
| public void scale(double sx, double sy) { | |
| mGraphics.scale(sx, sy); | |
| } | |
| /** | |
| * Concatenates the current transform of this Graphics2D with a | |
| * shearing transformation. | |
| * This is equivalent to calling transform(SH), where SH is an | |
| * AffineTransform represented by the following matrix: | |
| * <pre> | |
| * [ 1 shx 0 ] | |
| * [ shy 1 0 ] | |
| * [ 0 0 1 ] | |
| * </pre> | |
| * @param shx The factor by which coordinates are shifted towards the | |
| * positive X axis direction according to their Y coordinate | |
| * @param shy The factor by which coordinates are shifted towards the | |
| * positive Y axis direction according to their X coordinate | |
| */ | |
| public void shear(double shx, double shy) { | |
| mGraphics.shear(shx, shy); | |
| } | |
| /** | |
| * Gets this graphics context's current color. | |
| * @return this graphics context's current color. | |
| * @see java.awt.Color | |
| * @see java.awt.Graphics#setColor | |
| * @since 1.0 | |
| */ | |
| public Color getColor() { | |
| return mGraphics.getColor(); | |
| } | |
| /** | |
| * Sets this graphics context's current color to the specified | |
| * color. All subsequent graphics operations using this graphics | |
| * context use this specified color. | |
| * @param c the new rendering color. | |
| * @see java.awt.Color | |
| * @see java.awt.Graphics#getColor | |
| * @since 1.0 | |
| */ | |
| public void setColor(Color c) { | |
| mGraphics.setColor(c); | |
| } | |
| /** | |
| * Sets the paint mode of this graphics context to overwrite the | |
| * destination with this graphics context's current color. | |
| * This sets the logical pixel operation function to the paint or | |
| * overwrite mode. All subsequent rendering operations will | |
| * overwrite the destination with the current color. | |
| * @since 1.0 | |
| */ | |
| public void setPaintMode() { | |
| mGraphics.setPaintMode(); | |
| } | |
| /** | |
| * Sets the paint mode of this graphics context to alternate between | |
| * this graphics context's current color and the new specified color. | |
| * This specifies that logical pixel operations are performed in the | |
| * XOR mode, which alternates pixels between the current color and | |
| * a specified XOR color. | |
| * <p> | |
| * When drawing operations are performed, pixels which are the | |
| * current color are changed to the specified color, and vice versa. | |
| * <p> | |
| * Pixels that are of colors other than those two colors are changed | |
| * in an unpredictable but reversible manner; if the same figure is | |
| * drawn twice, then all pixels are restored to their original values. | |
| * @param c1 the XOR alternation color | |
| * @since 1.0 | |
| */ | |
| public void setXORMode(Color c1) { | |
| mGraphics.setXORMode(c1); | |
| } | |
| /** | |
| * Gets the current font. | |
| * @return this graphics context's current font. | |
| * @see java.awt.Font | |
| * @see java.awt.Graphics#setFont | |
| * @since 1.0 | |
| */ | |
| public Font getFont() { | |
| return mGraphics.getFont(); | |
| } | |
| /** | |
| * Sets this graphics context's font to the specified font. | |
| * All subsequent text operations using this graphics context | |
| * use this font. | |
| * @param font the font. | |
| * @see java.awt.Graphics#getFont | |
| * @see java.awt.Graphics#drawChars(char[], int, int, int, int) | |
| * @see java.awt.Graphics#drawString(String, int, int) | |
| * @see java.awt.Graphics#drawBytes(byte[], int, int, int, int) | |
| * @since 1.0 | |
| */ | |
| public void setFont(Font font) { | |
| mGraphics.setFont(font); | |
| } | |
| /** | |
| * Gets the font metrics for the specified font. | |
| * @return the font metrics for the specified font. | |
| * @param f the specified font | |
| * @see java.awt.Graphics#getFont | |
| * @see java.awt.FontMetrics | |
| * @see java.awt.Graphics#getFontMetrics() | |
| * @since 1.0 | |
| */ | |
| public FontMetrics getFontMetrics(Font f) { | |
| return mGraphics.getFontMetrics(f); | |
| } | |
| /** | |
| * Get the rendering context of the font | |
| * within this Graphics2D context. | |
| */ | |
| public FontRenderContext getFontRenderContext() { | |
| return mGraphics.getFontRenderContext(); | |
| } | |
| /** | |
| * Returns the bounding rectangle of the current clipping area. | |
| * The coordinates in the rectangle are relative to the coordinate | |
| * system origin of this graphics context. | |
| * @return the bounding rectangle of the current clipping area. | |
| * @see java.awt.Graphics#getClip | |
| * @see java.awt.Graphics#clipRect | |
| * @see java.awt.Graphics#setClip(int, int, int, int) | |
| * @see java.awt.Graphics#setClip(Shape) | |
| * @since 1.1 | |
| */ | |
| public Rectangle getClipBounds() { | |
| return mGraphics.getClipBounds(); | |
| } | |
| /** | |
| * Intersects the current clip with the specified rectangle. | |
| * The resulting clipping area is the intersection of the current | |
| * clipping area and the specified rectangle. | |
| * This method can only be used to make the current clip smaller. | |
| * To set the current clip larger, use any of the setClip methods. | |
| * Rendering operations have no effect outside of the clipping area. | |
| * @param x the x coordinate of the rectangle to intersect the clip with | |
| * @param y the y coordinate of the rectangle to intersect the clip with | |
| * @param width the width of the rectangle to intersect the clip with | |
| * @param height the height of the rectangle to intersect the clip with | |
| * @see #setClip(int, int, int, int) | |
| * @see #setClip(Shape) | |
| */ | |
| public void clipRect(int x, int y, int width, int height) { | |
| mGraphics.clipRect(x, y, width, height); | |
| } | |
| /** | |
| * Sets the current clip to the rectangle specified by the given | |
| * coordinates. | |
| * Rendering operations have no effect outside of the clipping area. | |
| * @param x the <i>x</i> coordinate of the new clip rectangle. | |
| * @param y the <i>y</i> coordinate of the new clip rectangle. | |
| * @param width the width of the new clip rectangle. | |
| * @param height the height of the new clip rectangle. | |
| * @see java.awt.Graphics#clipRect | |
| * @see java.awt.Graphics#setClip(Shape) | |
| * @since 1.1 | |
| */ | |
| public void setClip(int x, int y, int width, int height) { | |
| mGraphics.setClip(x, y, width, height); | |
| } | |
| /** | |
| * Gets the current clipping area. | |
| * @return a {@code Shape} object representing the | |
| * current clipping area. | |
| * @see java.awt.Graphics#getClipBounds | |
| * @see java.awt.Graphics#clipRect | |
| * @see java.awt.Graphics#setClip(int, int, int, int) | |
| * @see java.awt.Graphics#setClip(Shape) | |
| * @since 1.1 | |
| */ | |
| public Shape getClip() { | |
| return mGraphics.getClip(); | |
| } | |
| /** | |
| * Sets the current clipping area to an arbitrary clip shape. | |
| * Not all objects which implement the {@code Shape} | |
| * interface can be used to set the clip. The only | |
| * {@code Shape} objects which are guaranteed to be | |
| * supported are {@code Shape} objects which are | |
| * obtained via the {@code getClip} method and via | |
| * {@code Rectangle} objects. | |
| * @see java.awt.Graphics#getClip() | |
| * @see java.awt.Graphics#clipRect | |
| * @see java.awt.Graphics#setClip(int, int, int, int) | |
| * @since 1.1 | |
| */ | |
| public void setClip(Shape clip) { | |
| mGraphics.setClip(clip); | |
| } | |
| /** | |
| * Copies an area of the component by a distance specified by | |
| * {@code dx} and {@code dy}. From the point specified | |
| * by {@code x} and {@code y}, this method | |
| * copies downwards and to the right. To copy an area of the | |
| * component to the left or upwards, specify a negative value for | |
| * {@code dx} or {@code dy}. | |
| * If a portion of the source rectangle lies outside the bounds | |
| * of the component, or is obscured by another window or component, | |
| * {@code copyArea} will be unable to copy the associated | |
| * pixels. The area that is omitted can be refreshed by calling | |
| * the component's {@code paint} method. | |
| * @param x the <i>x</i> coordinate of the source rectangle. | |
| * @param y the <i>y</i> coordinate of the source rectangle. | |
| * @param width the width of the source rectangle. | |
| * @param height the height of the source rectangle. | |
| * @param dx the horizontal distance to copy the pixels. | |
| * @param dy the vertical distance to copy the pixels. | |
| * @since 1.0 | |
| */ | |
| public void copyArea(int x, int y, int width, int height, | |
| int dx, int dy) { | |
| // This method is not supported for printing so we do nothing here. | |
| } | |
| /** | |
| * 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. | |
| * @since 1.0 | |
| */ | |
| public void drawLine(int x1, int y1, int x2, int y2) { | |
| addStrokeShape(new Line2D.Float(x1, y1, x2, y2)); | |
| mPrintMetrics.draw(this); | |
| } | |
| /** | |
| * 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#fillRect | |
| * @see java.awt.Graphics#clearRect | |
| * @since 1.0 | |
| */ | |
| public void fillRect(int x, int y, int width, int height) { | |
| addDrawingRect(new Rectangle2D.Float(x, y, width, height)); | |
| mPrintMetrics.fill(this); | |
| } | |
| /** | |
| * 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) | |
| * @since 1.0 | |
| */ | |
| public void clearRect(int x, int y, int width, int height) { | |
| Rectangle2D.Float rect = new Rectangle2D.Float(x, y, width, height); | |
| addDrawingRect(rect); | |
| mPrintMetrics.clear(this); | |
| } | |
| /** | |
| * 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 | |
| * @since 1.0 | |
| */ | |
| public void drawRoundRect(int x, int y, int width, int height, | |
| int arcWidth, int arcHeight) { | |
| addStrokeShape(new RoundRectangle2D.Float(x, y, width, height, arcWidth, arcHeight)); | |
| mPrintMetrics.draw(this); | |
| } | |
| /** | |
| * 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 | |
| * @since 1.0 | |
| */ | |
| public void fillRoundRect(int x, int y, int width, int height, | |
| int arcWidth, int arcHeight) { | |
| Rectangle2D.Float rect = new Rectangle2D.Float(x, y,width, height); | |
| addDrawingRect(rect); | |
| mPrintMetrics.fill(this); | |
| } | |
| /** | |
| * 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) { | |
| addStrokeShape(new Rectangle2D.Float(x, y, width, height)); | |
| mPrintMetrics.draw(this); | |
| } | |
| /** | |
| * Fills an oval bounded by the specified rectangle with the | |
| * current color. | |
| * @param x the <i>x</i> coordinate of the upper left corner | |
| * of the oval to be filled. | |
| * @param y the <i>y</i> coordinate of the upper left corner | |
| * of the oval to be filled. | |
| * @param width the width of the oval to be filled. | |
| * @param height the height of the oval to be filled. | |
| * @see java.awt.Graphics#drawOval | |
| * @since 1.0 | |
| */ | |
| public void fillOval(int x, int y, int width, int height) { | |
| Rectangle2D.Float rect = new Rectangle2D.Float(x, y, width, height); | |
| addDrawingRect(rect); | |
| mPrintMetrics.fill(this); | |
| } | |
| /** | |
| * 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. | |
| * @param x the <i>x</i> coordinate of the | |
| * upper-left corner of the arc to be drawn. | |
| * @param y the <i>y</i> coordinate of the | |
| * upper-left corner of the arc to be drawn. | |
| * @param width the width of the arc to be drawn. | |
| * @param height the height of the arc to be drawn. | |
| * @param startAngle the beginning angle. | |
| * @param arcAngle the angular extent of the arc, | |
| * relative to the start angle. | |
| * @see java.awt.Graphics#fillArc | |
| * @since 1.0 | |
| */ | |
| public void drawArc(int x, int y, int width, int height, | |
| int startAngle, int arcAngle) { | |
| addStrokeShape(new Rectangle2D.Float(x, y, width, height)); | |
| mPrintMetrics.draw(this); | |
| } | |
| /** | |
| * 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. | |
| * @param x the <i>x</i> coordinate of the | |
| * upper-left corner of the arc to be filled. | |
| * @param y the <i>y</i> coordinate of the | |
| * upper-left corner of the arc to be filled. | |
| * @param width the width of the arc to be filled. | |
| * @param height the height of the arc to be filled. | |
| * @param startAngle the beginning angle. | |
| * @param arcAngle the angular extent of the arc, | |
| * relative to the start angle. | |
| * @see java.awt.Graphics#drawArc | |
| * @since 1.0 | |
| */ | |
| public void fillArc(int x, int y, int width, int height, | |
| int startAngle, int arcAngle) { | |
| Rectangle2D.Float rect = new Rectangle2D.Float(x, y,width, height); | |
| addDrawingRect(rect); | |
| mPrintMetrics.fill(this); | |
| } | |
| /** | |
| * 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 > 0) { | |
| int x = xPoints[0]; | |
| int y = yPoints[0]; | |
| for (int i = 1; i < nPoints; i++) { | |
| drawLine(x, y, xPoints[i], yPoints[i]); | |
| x = xPoints[i]; | |
| y = yPoints[i]; | |
| } | |
| } | |
| } | |
| /** | |
| * 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 | |
| * @since 1.0 | |
| */ | |
| public void drawPolygon(int[] xPoints, int[] yPoints, | |
| int nPoints) { | |
| if (nPoints > 0) { | |
| drawPolyline(xPoints, yPoints, nPoints); | |
| drawLine(xPoints[nPoints - 1], yPoints[nPoints - 1], | |
| xPoints[0], yPoints[0]); | |
| } | |
| } | |
| /** | |
| * 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) | |
| * @since 1.0 | |
| */ | |
| public void fillPolygon(int[] xPoints, int[] yPoints, | |
| int nPoints) { | |
| if (nPoints > 0) { | |
| int minX = xPoints[0]; | |
| int minY = yPoints[0]; | |
| int maxX = xPoints[0]; | |
| int maxY = yPoints[0]; | |
| for (int i = 1; i < nPoints; i++) { | |
| if (xPoints[i] < minX) { | |
| minX = xPoints[i]; | |
| } else if (xPoints[i] > maxX) { | |
| maxX = xPoints[i]; | |
| } | |
| if (yPoints[i] < minY) { | |
| minY = yPoints[i]; | |
| } else if (yPoints[i] > maxY) { | |
| maxY = yPoints[i]; | |
| } | |
| } | |
| addDrawingRect(minX, minY, maxX - minX, maxY - minY); | |
| } | |
| mPrintMetrics.fill(this); | |
| } | |
| /** | |
| * 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); | |
| } | |
| /** | |
| * 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. | |
| * The rendering attributes applied include the clip, transform, | |
| * paint or color, and composite attributes. | |
| * For characters in script systems such as Hebrew and Arabic, | |
| * the glyphs may be draw from right to left, in which case the | |
| * coordinate supplied is the location of the leftmost character | |
| * on the baseline. | |
| * @param iterator the iterator whose text is to be drawn | |
| * @param x,y the coordinates where the iterator's text should be drawn. | |
| * @see #setPaint | |
| * @see java.awt.Graphics#setColor | |
| * @see #setTransform | |
| * @see #setComposite | |
| * @see #setClip | |
| */ | |
| public void drawString(AttributedCharacterIterator iterator, | |
| int x, int y) { | |
| drawString(iterator, (float)x, (float)y); | |
| } | |
| /** | |
| * Draws the text given by the specified iterator, using this | |
| * graphics context's current color. The iterator has to specify a font | |
| * for each character. The baseline of the | |
| * first character is at position (<i>x</i>, <i>y</i>) in this | |
| * graphics context's coordinate system. | |
| * The rendering attributes applied include the clip, transform, | |
| * paint or color, and composite attributes. | |
| * For characters in script systems such as Hebrew and Arabic, | |
| * the glyphs may be draw from right to left, in which case the | |
| * coordinate supplied is the location of the leftmost character | |
| * on the baseline. | |
| * @param iterator the iterator whose text is to be drawn | |
| * @param x,y the coordinates where the iterator's text should be drawn. | |
| * @see #setPaint | |
| * @see java.awt.Graphics#setColor | |
| * @see #setTransform | |
| * @see #setComposite | |
| * @see #setClip | |
| */ | |
| public void drawString(AttributedCharacterIterator iterator, | |
| float x, float y) { | |
| if (iterator == null) { | |
| throw new | |
| NullPointerException("AttributedCharacterIterator is null"); | |
| } | |
| TextLayout layout = new TextLayout(iterator, getFontRenderContext()); | |
| layout.draw(this, x, y); | |
| } | |
| /** | |
| * Draws as much of the specified image as is currently available. | |
| * The image is drawn with its top-left corner at | |
| * (<i>x</i>, <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) { | |
| if (img == null) { | |
| return true; | |
| } | |
| /* The ImageWaiter creation does not return until the | |
| * image is loaded. | |
| */ | |
| ImageWaiter dim = new ImageWaiter(img); | |
| addDrawingRect(x, y, dim.getWidth(), dim.getHeight()); | |
| mPrintMetrics.drawImage(this, img); | |
| return mGraphics.drawImage(img, x, y, observer); | |
| } | |
| /** | |
| * Draws as much of the specified image as has already been scaled | |
| * to fit inside the specified rectangle. | |
| * <p> | |
| * The image is drawn inside the specified rectangle of this | |
| * graphics context's coordinate space, and is scaled if | |
| * necessary. Transparent pixels do not affect whatever pixels | |
| * are already there. | |
| * <p> | |
| * This method returns immediately in all cases, even if the | |
| * entire image has not yet been scaled, dithered, and converted | |
| * for the current output device. | |
| * If the current output representation is not yet complete, then | |
| * {@code drawImage} returns {@code false}. As more of | |
| * the image becomes available, the process that draws the image notifies | |
| * the image observer by calling its {@code imageUpdate} method. | |
| * <p> | |
| * A scaled version of an image will not necessarily be | |
| * available immediately just because an unscaled version of the | |
| * image has been constructed for this output device. Each size of | |
| * the image may be cached separately and generated from the original | |
| * data in a separate image production sequence. | |
| * @param img the specified image to be drawn. | |
| * @param x the <i>x</i> coordinate. | |
| * @param y the <i>y</i> coordinate. | |
| * @param width the width of the rectangle. | |
| * @param height the height of the rectangle. | |
| * @param observer object to be notified as more of | |
| * the image is converted. | |
| * @see java.awt.Image | |
| * @see java.awt.image.ImageObserver | |
| * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) | |
| * @since 1.0 | |
| */ | |
| public boolean drawImage(Image img, int x, int y, | |
| int width, int height, | |
| ImageObserver observer) { | |
| if (img == null) { | |
| return true; | |
| } | |
| addDrawingRect(x, y, width, height); | |
| mPrintMetrics.drawImage(this, img); | |
| return mGraphics.drawImage(img, x, y, width, height, observer); | |
| } | |
| /** | |
| * Draws as much of the specified image as is currently available. | |
| * The image is drawn with its top-left corner at | |
| * (<i>x</i>, <i>y</i>) in this graphics context's coordinate | |
| * space. Transparent pixels are drawn in the specified | |
| * background color. | |
| * <p> | |
| * This operation is equivalent to filling a rectangle of the | |
| * width and height of the specified image with the given color and then | |
| * drawing the image on top of it, but possibly more efficient. | |
| * <p> | |
| * This method returns immediately in all cases, even if the | |
| * complete image has not yet been loaded, and it has not been dithered | |
| * and converted for the current output device. | |
| * <p> | |
| * If the image has not yet been completely loaded, then | |
| * {@code drawImage} returns {@code false}. As more of | |
| * the image becomes available, the process that draws the image notifies | |
| * the specified image observer. | |
| * @param img the specified image to be drawn. | |
| * @param x the <i>x</i> coordinate. | |
| * @param y the <i>y</i> coordinate. | |
| * @param bgcolor the background color to paint under the | |
| * non-opaque portions of the image. | |
| * @param observer object to be notified as more of | |
| * the image is converted. | |
| * @see java.awt.Image | |
| * @see java.awt.image.ImageObserver | |
| * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) | |
| * @since 1.0 | |
| */ | |
| public boolean drawImage(Image img, int x, int y, | |
| Color bgcolor, | |
| ImageObserver observer) { | |
| if (img == null) { | |
| return true; | |
| } | |
| /* The ImageWaiter creation does not return until the | |
| * image is loaded. | |
| */ | |
| ImageWaiter dim = new ImageWaiter(img); | |
| addDrawingRect(x, y, dim.getWidth(), dim.getHeight()); | |
| mPrintMetrics.drawImage(this, img); | |
| return mGraphics.drawImage(img, x, y, bgcolor, 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 are drawn in the specified | |
| * background color. | |
| * This operation is equivalent to filling a rectangle of the | |
| * width and height of the specified image with the given color and then | |
| * drawing the image on top of it, but possibly more efficient. | |
| * <p> | |
| * This method returns immediately in all cases, even if the | |
| * entire image has not yet been scaled, dithered, and converted | |
| * for the current output device. | |
| * If the current output representation is not yet complete then | |
| * {@code drawImage} returns {@code false}. As more of | |
| * the image becomes available, the process that draws the image notifies | |
| * the specified image observer. | |
| * <p> | |
| * A scaled version of an image will not necessarily be | |
| * available immediately just because an unscaled version of the | |
| * image has been constructed for this output device. Each size of | |
| * the image may be cached separately and generated from the original | |
| * data in a separate image production sequence. | |
| * @param img the specified image to be drawn. | |
| * @param x the <i>x</i> coordinate. | |
| * @param y the <i>y</i> coordinate. | |
| * @param width the width of the rectangle. | |
| * @param height the height of the rectangle. | |
| * @param bgcolor the background color to paint under the | |
| * non-opaque portions of the image. | |
| * @param observer object to be notified as more of | |
| * the image is converted. | |
| * @see java.awt.Image | |
| * @see java.awt.image.ImageObserver | |
| * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) | |
| * @since 1.0 | |
| */ | |
| public boolean drawImage(Image img, int x, int y, | |
| int width, int height, | |
| Color bgcolor, | |
| ImageObserver observer) { | |
| if (img == null) { | |
| return true; | |
| } | |
| addDrawingRect(x, y, width, height); | |
| mPrintMetrics.drawImage(this, img); | |
| return mGraphics.drawImage(img, x, y, width, height, bgcolor, observer); | |
| } | |
| /** | |
| * Draws as much of the specified area of the specified image as is | |
| * currently available, scaling it on the fly to fit inside the | |
| * specified area of the destination drawable surface. Transparent pixels | |
| * 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) { | |
| if (img == null) { | |
| return true; | |
| } | |
| int width = dx2 - dx1; | |
| int height = dy2 - dy1; | |
| addDrawingRect(dx1, dy1, width, height); | |
| mPrintMetrics.drawImage(this, img); | |
| return mGraphics.drawImage(img, dx1, dy1, dx2, dy2, | |
| sx1, sy1, sx2, sy2, observer); | |
| } | |
| /** | |
| * Draws as much of the specified area of the specified image as is | |
| * currently available, scaling it on the fly to fit inside the | |
| * specified area of the destination drawable surface. | |
| * <p> | |
| * Transparent pixels are drawn in the specified background color. | |
| * This operation is equivalent to filling a rectangle of the | |
| * width and height of the specified image with the given color and then | |
| * drawing the image on top of it, but possibly more efficient. | |
| * <p> | |
| * This method returns immediately in all cases, even if the | |
| * image area to be drawn has not yet been scaled, dithered, and converted | |
| * for the current output device. | |
| * If the current output representation is not yet complete then | |
| * {@code drawImage} returns {@code false}. As more of | |
| * the image becomes available, the process that draws the image notifies | |
| * the specified image observer. | |
| * <p> | |
| * This method always uses the unscaled version of the image | |
| * to render the scaled rectangle and performs the required | |
| * scaling on the fly. It does not use a cached, scaled version | |
| * of the image for this operation. Scaling of the image from source | |
| * to destination is performed such that the first coordinate | |
| * of the source rectangle is mapped to the first coordinate of | |
| * the destination rectangle, and the second source coordinate is | |
| * mapped to the second destination coordinate. The subimage is | |
| * scaled and flipped as needed to preserve those mappings. | |
| * @param img the specified image to be drawn | |
| * @param dx1 the <i>x</i> coordinate of the first corner of the | |
| * destination rectangle. | |
| * @param dy1 the <i>y</i> coordinate of the first corner of the | |
| * destination rectangle. | |
| * @param dx2 the <i>x</i> coordinate of the second corner of the | |
| * destination rectangle. | |
| * @param dy2 the <i>y</i> coordinate of the second corner of the | |
| * destination rectangle. | |
| * @param sx1 the <i>x</i> coordinate of the first corner of the | |
| * source rectangle. | |
| * @param sy1 the <i>y</i> coordinate of the first corner of the | |
| * source rectangle. | |
| * @param sx2 the <i>x</i> coordinate of the second corner of the | |
| * source rectangle. | |
| * @param sy2 the <i>y</i> coordinate of the second corner of the | |
| * source rectangle. | |
| * @param bgcolor the background color to paint under the | |
| * non-opaque portions of the image. | |
| * @param observer object to be notified as more of the image is | |
| * scaled and converted. | |
| * @see java.awt.Image | |
| * @see java.awt.image.ImageObserver | |
| * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) | |
| * @since 1.1 | |
| */ | |
| public boolean drawImage(Image img, | |
| int dx1, int dy1, int dx2, int dy2, | |
| int sx1, int sy1, int sx2, int sy2, | |
| Color bgcolor, | |
| ImageObserver observer) { | |
| if (img == null) { | |
| return true; | |
| } | |
| int width = dx2 - dx1; | |
| int height = dy2 - dy1; | |
| addDrawingRect(dx1, dy1, width, height); | |
| mPrintMetrics.drawImage(this, img); | |
| return mGraphics.drawImage(img, dx1, dy1, dx2, dy2, | |
| sx1, sy1, sx2, sy2, bgcolor, observer); | |
| } | |
| /** | |
| * Draws an image, applying a transform from image space into user space | |
| * before drawing. | |
| * The transformation from user space into device space is done with | |
| * the current transform in the Graphics2D. | |
| * The given transformation is applied to the image before the | |
| * transform attribute in the Graphics2D state is applied. | |
| * The rendering attributes applied include the clip, transform, | |
| * and composite attributes. Note that the result is | |
| * undefined, if the given transform is noninvertible. | |
| * @param img The image to be drawn. | |
| * @param xform The transformation from image space into user space. | |
| * @see #transform | |
| * @see #setTransform | |
| * @see #setComposite | |
| * @see #clip | |
| * @see #setClip | |
| */ | |
| public void drawRenderedImage(RenderedImage img, | |
| AffineTransform xform) { | |
| if (img == null) { | |
| return; | |
| } | |
| mPrintMetrics.drawImage(this, img); | |
| mDrawingArea.addInfinite(); | |
| } | |
| public void drawRenderableImage(RenderableImage img, | |
| AffineTransform xform) { | |
| if (img == null) { | |
| return; | |
| } | |
| mPrintMetrics.drawImage(this, img); | |
| mDrawingArea.addInfinite(); | |
| } | |
| /** | |
| * Disposes of this graphics context and releases | |
| * any system resources that it is using. | |
| * A {@code Graphics} object cannot be used after | |
| * {@code dispose} has been called. | |
| * <p> | |
| * When a Java program runs, a large number of {@code Graphics} | |
| * objects can be created within a short time frame. | |
| * Although the finalization process of the garbage collector | |
| * also disposes of the same system resources, it is preferable | |
| * to manually free the associated resources by calling this | |
| * method rather than to rely on a finalization process which | |
| * may not run to completion for a long period of time. | |
| * <p> | |
| * Graphics objects which are provided as arguments to the | |
| * {@code paint} and {@code update} methods | |
| * of components are automatically released by the system when | |
| * those methods return. For efficiency, programmers should | |
| * call {@code dispose} when finished using | |
| * a {@code Graphics} object only if it was created | |
| * directly from a component or another {@code Graphics} object. | |
| * @see java.awt.Graphics#finalize | |
| * @see java.awt.Component#paint | |
| * @see java.awt.Component#update | |
| * @see java.awt.Component#getGraphics | |
| * @see java.awt.Graphics#create | |
| * @since 1.0 | |
| */ | |
| public void dispose() { | |
| mGraphics.dispose(); | |
| } | |
| /** | |
| * Empty finalizer as no clean up needed here. | |
| */ | |
| @SuppressWarnings("removal") | |
| public void finalize() { | |
| } | |
| /* The Delegated Graphics2D Methods */ | |
| /** | |
| * Strokes the outline of a Shape using the settings of the current | |
| * graphics state. The rendering attributes applied include the | |
| * clip, transform, paint or color, composite and stroke attributes. | |
| * @param s The shape to be drawn. | |
| * @see #setStroke | |
| * @see #setPaint | |
| * @see java.awt.Graphics#setColor | |
| * @see #transform | |
| * @see #setTransform | |
| * @see #clip | |
| * @see #setClip | |
| * @see #setComposite | |
| */ | |
| public void draw(Shape s) { | |
| addStrokeShape(s); | |
| mPrintMetrics.draw(this); | |
| } | |
| /** | |
| * Draws an image, applying a transform from image space into user space | |
| * before drawing. | |
| * The transformation from user space into device space is done with | |
| * the current transform in the Graphics2D. | |
| * The given transformation is applied to the image before the | |
| * transform attribute in the Graphics2D state is applied. | |
| * The rendering attributes applied include the clip, transform, | |
| * and composite attributes. Note that the result is | |
| * undefined, if the given transform is noninvertible. | |
| * @param img The image to be drawn. | |
| * @param xform The transformation from image space into user space. | |
| * @param obs The image observer to be notified as more of the image | |
| * is converted. | |
| * @see #transform | |
| * @see #setTransform | |
| * @see #setComposite | |
| * @see #clip | |
| * @see #setClip | |
| */ | |
| public boolean drawImage(Image img, | |
| AffineTransform xform, | |
| ImageObserver obs) { | |
| if (img == null) { | |
| return true; | |
| } | |
| mDrawingArea.addInfinite(); | |
| mPrintMetrics.drawImage(this, img); | |
| return mGraphics.drawImage(img, xform, obs); | |
| // if (mDrawingArea[0] != null) { | |
| // Rectangle2D.Double bbox = new Rectangle2D.Double(); | |
| // Point2D leftTop = new Point2D.Double(0, 0); | |
| // Point2D rightBottom = new Point2D.Double(getImageWidth(img), | |
| // getImageHeight(img)); | |
| // xform.transform(leftTop, leftTop); | |
| // xform.transform(rightBottom, rightBottom); | |
| // bbox.setBoundsFromDiagonal(leftTop, rightBottom); | |
| // addDrawingRect(bbox); | |
| // } | |
| } | |
| /** | |
| * Draws a BufferedImage that is filtered with a BufferedImageOp. | |
| * The rendering attributes applied include the clip, transform | |
| * and composite attributes. This is equivalent to: | |
| * <pre> | |
| * img1 = op.filter(img, null); | |
| * drawImage(img1, new AffineTransform(1f,0f,0f,1f,x,y), null); | |
| * </pre> | |
| * @param op The filter to be applied to the image before drawing. | |
| * @param img The BufferedImage to be drawn. | |
| * @param x,y The location in user space where the image should be drawn. | |
| * @see #transform | |
| * @see #setTransform | |
| * @see #setComposite | |
| * @see #clip | |
| * @see #setClip | |
| */ | |
| public void drawImage(BufferedImage img, | |
| BufferedImageOp op, | |
| int x, | |
| int y) { | |
| if (img == null) { | |
| return; | |
| } | |
| mPrintMetrics.drawImage(this, (RenderedImage) img); | |
| mDrawingArea.addInfinite(); | |
| } | |
| /** | |
| * Draws a string of text. | |
| * The rendering attributes applied include the clip, transform, | |
| * paint or color, font and composite attributes. | |
| * @param str The string to be drawn. | |
| * @param x,y The coordinates where the string should be drawn. | |
| * @see #setPaint | |
| * @see java.awt.Graphics#setColor | |
| * @see java.awt.Graphics#setFont | |
| * @see #transform | |
| * @see #setTransform | |
| * @see #setComposite | |
| * @see #clip | |
| * @see #setClip | |
| */ | |
| public void drawString(String str, | |
| float x, | |
| float y) { | |
| if (str.length() == 0) { | |
| return; | |
| } | |
| /* Logical bounds close enough and is used for GlyphVector */ | |
| FontRenderContext frc = getFontRenderContext(); | |
| Rectangle2D bbox = getFont().getStringBounds(str, frc); | |
| addDrawingRect(bbox, x, y); | |
| mPrintMetrics.drawText(this); | |
| } | |
| /** | |
| * 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) { | |
| Rectangle2D bbox = g.getLogicalBounds(); | |
| addDrawingRect(bbox, x, y); | |
| mPrintMetrics.drawText(this); | |
| } | |
| /** | |
| * 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) { | |
| addDrawingRect(s.getBounds()); | |
| mPrintMetrics.fill(this); | |
| } | |
| /** | |
| * Checks to see if the outline of a Shape intersects the specified | |
| * Rectangle in device space. | |
| * The rendering attributes taken into account include the | |
| * clip, transform, and stroke attributes. | |
| * @param rect The area in device space to check for a hit. | |
| * @param s The shape to check for a hit. | |
| * @param onStroke Flag to choose between testing the stroked or | |
| * the filled shape. | |
| * @return True if there is a hit, false otherwise. | |
| * @see #setStroke | |
| * @see #fill | |
| * @see #draw | |
| * @see #transform | |
| * @see #setTransform | |
| * @see #clip | |
| * @see #setClip | |
| */ | |
| public boolean hit(Rectangle rect, | |
| Shape s, | |
| boolean onStroke) { | |
| return mGraphics.hit(rect, s, onStroke); | |
| } | |
| /** | |
| * Sets the Composite in the current graphics state. Composite is used | |
| * in all drawing methods such as drawImage, drawString, draw, | |
| * and fill. It specifies how new pixels are to be combined with | |
| * the existing pixels on the graphics device in the rendering process. | |
| * @param comp The Composite object to be used for drawing. | |
| * @see java.awt.Graphics#setXORMode | |
| * @see java.awt.Graphics#setPaintMode | |
| * @see java.awt.AlphaComposite | |
| */ | |
| public void setComposite(Composite comp) { | |
| mGraphics.setComposite(comp); | |
| } | |
| /** | |
| * Sets the Paint in the current graphics state. | |
| * @param paint The Paint object to be used to generate color in | |
| * the rendering process. | |
| * @see java.awt.Graphics#setColor | |
| * @see java.awt.GradientPaint | |
| * @see java.awt.TexturePaint | |
| */ | |
| public void setPaint(Paint paint) { | |
| mGraphics.setPaint(paint); | |
| } | |
| /** | |
| * Sets the Stroke in the current graphics state. | |
| * @param s The Stroke object to be used to stroke a Shape in | |
| * the rendering process. | |
| * @see BasicStroke | |
| */ | |
| public void setStroke(Stroke s) { | |
| mGraphics.setStroke(s); | |
| } | |
| /** | |
| * Sets the preferences for the rendering algorithms. | |
| * Hint categories include controls for rendering quality and | |
| * overall time/quality trade-off in the rendering process. | |
| * @param hintCategory The category of hint to be set. | |
| * @param hintValue The value indicating preferences for the specified | |
| * hint category. | |
| * @see RenderingHints | |
| */ | |
| public void setRenderingHint(Key hintCategory, Object hintValue) { | |
| mGraphics.setRenderingHint(hintCategory, hintValue); | |
| } | |
| /** | |
| * Returns the preferences for the rendering algorithms. | |
| * @param hintCategory The category of hint to be set. | |
| * @return The preferences for rendering algorithms. | |
| * @see RenderingHints | |
| */ | |
| public Object getRenderingHint(Key hintCategory) { | |
| return mGraphics.getRenderingHint(hintCategory); | |
| } | |
| /** | |
| * Sets the preferences for the rendering algorithms. | |
| * Hint categories include controls for rendering quality and | |
| * overall time/quality trade-off in the rendering process. | |
| * @param hints The rendering hints to be set | |
| * @see RenderingHints | |
| */ | |
| public void setRenderingHints(Map<?,?> hints) { | |
| mGraphics.setRenderingHints(hints); | |
| } | |
| /** | |
| * Adds a number of preferences for the rendering algorithms. | |
| * Hint categories include controls for rendering quality and | |
| * overall time/quality trade-off in the rendering process. | |
| * @param hints The rendering hints to be set | |
| * @see RenderingHints | |
| */ | |
| public void addRenderingHints(Map<?,?> hints) { | |
| mGraphics.addRenderingHints(hints); | |
| } | |
| /** | |
| * Gets the preferences for the rendering algorithms. | |
| * Hint categories include controls for rendering quality and | |
| * overall time/quality trade-off in the rendering process. | |
| * @see RenderingHints | |
| */ | |
| public RenderingHints getRenderingHints() { | |
| return mGraphics.getRenderingHints(); | |
| } | |
| /** | |
| * Composes a Transform object with the transform in this | |
| * Graphics2D according to the rule last-specified-first-applied. | |
| * If the current transform is Cx, the result of composition | |
| * with Tx is a new transform Cx'. Cx' becomes the current | |
| * transform for this Graphics2D. | |
| * Transforming a point p by the updated transform Cx' is | |
| * equivalent to first transforming p by Tx and then transforming | |
| * the result by the original transform Cx. In other words, | |
| * Cx'(p) = Cx(Tx(p)). | |
| * A copy of the Tx is made, if necessary, so further | |
| * modifications to Tx do not affect rendering. | |
| * @param Tx The Transform object to be composed with the current | |
| * transform. | |
| * @see #setTransform | |
| * @see AffineTransform | |
| */ | |
| public void transform(AffineTransform Tx) { | |
| mGraphics.transform(Tx); | |
| } | |
| /** | |
| * Sets the Transform in the current graphics state. | |
| * @param Tx The Transform object to be used in the rendering process. | |
| * @see #transform | |
| * @see AffineTransform | |
| */ | |
| public void setTransform(AffineTransform Tx) { | |
| mGraphics.setTransform(Tx); | |
| } | |
| /** | |
| * Returns the current Transform in the Graphics2D state. | |
| * @see #transform | |
| * @see #setTransform | |
| */ | |
| public AffineTransform getTransform() { | |
| return mGraphics.getTransform(); | |
| } | |
| /** | |
| * Returns the current Paint in the Graphics2D state. | |
| * @see #setPaint | |
| * @see java.awt.Graphics#setColor | |
| */ | |
| public Paint getPaint() { | |
| return mGraphics.getPaint(); | |
| } | |
| /** | |
| * Returns the current Composite in the Graphics2D state. | |
| * @see #setComposite | |
| */ | |
| public Composite getComposite() { | |
| return mGraphics.getComposite(); | |
| } | |
| /** | |
| * Sets the background color in this context used for clearing a region. | |
| * When Graphics2D is constructed for a component, the background color is | |
| * inherited from the component. Setting the background color in the | |
| * Graphics2D context only affects the subsequent clearRect() calls and | |
| * not the background color of the component. To change the background | |
| * of the component, use appropriate methods of the component. | |
| * @param color The background color that should be used in | |
| * subsequent calls to clearRect(). | |
| * @see #getBackground | |
| * @see Graphics#clearRect | |
| */ | |
| public void setBackground(Color color) { | |
| mGraphics.setBackground(color); | |
| } | |
| /** | |
| * Returns the background color used for clearing a region. | |
| * @see #setBackground | |
| */ | |
| public Color getBackground() { | |
| return mGraphics.getBackground(); | |
| } | |
| /** | |
| * Returns the current Stroke in the Graphics2D state. | |
| * @see #setStroke | |
| */ | |
| public Stroke getStroke() { | |
| return mGraphics.getStroke(); | |
| } | |
| /** | |
| * Intersects the current clip with the interior of the specified Shape | |
| * and sets the current clip to the resulting intersection. | |
| * The indicated shape is transformed with the current transform in the | |
| * Graphics2D state before being intersected with the current clip. | |
| * This method is used to make the current clip smaller. | |
| * To make the clip larger, use any setClip method. | |
| * @param s The Shape to be intersected with the current clip. | |
| */ | |
| public void clip(Shape s) { | |
| mGraphics.clip(s); | |
| } | |
| /** | |
| * Return true if the Rectangle {@code rect} | |
| * intersects the area into which the application | |
| * has drawn. | |
| */ | |
| public boolean hitsDrawingArea(Rectangle rect) { | |
| return mDrawingArea.intersects((float) rect.getMinY(), | |
| (float) rect.getMaxY()); | |
| } | |
| /** | |
| * Return the object holding the summary of the | |
| * drawing done by the printing application. | |
| */ | |
| public PeekMetrics getMetrics() { | |
| return mPrintMetrics; | |
| } | |
| /* Support Routines for Calculating the Drawing Area */ | |
| /** | |
| * Shift the rectangle 'rect' to the position ('x', 'y') | |
| * and add the resulting rectangle to the area representing | |
| * the part of the page which is drawn into. | |
| */ | |
| private void addDrawingRect(Rectangle2D rect, float x, float y) { | |
| addDrawingRect((float) (rect.getX() + x), | |
| (float) (rect.getY() + y), | |
| (float) rect.getWidth(), | |
| (float) rect.getHeight()); | |
| } | |
| private void addDrawingRect(float x, float y, float width, float height) { | |
| Rectangle2D.Float bbox = new Rectangle2D.Float(x, y, width, height); | |
| addDrawingRect(bbox); | |
| } | |
| /** | |
| * Add the rectangle 'rect' to the area representing | |
| * the part of the page which is drawn into. | |
| */ | |
| private void addDrawingRect(Rectangle2D rect) { | |
| /* For testing purposes the following line can be uncommented. | |
| When uncommented it causes the entire page to be rasterized | |
| thus eliminating errors caused by a faulty bounding box | |
| calculation. | |
| */ | |
| //mDrawingArea.addInfinite(); | |
| AffineTransform matrix = getTransform(); | |
| Shape transShape = matrix.createTransformedShape(rect); | |
| Rectangle2D transRect = transShape.getBounds2D(); | |
| mDrawingArea.add((float) transRect.getMinY(), | |
| (float) transRect.getMaxY()); | |
| } | |
| /** | |
| * Add the stroked shape to the area representing | |
| * the part of the page which is drawn into. | |
| */ | |
| private void addStrokeShape(Shape s) { | |
| Shape transShape = getStroke().createStrokedShape(s); | |
| addDrawingRect(transShape.getBounds2D()); | |
| } | |
| /* Image Observer */ | |
| /** | |
| * Notify this object when the height or width become available | |
| * for an image. | |
| */ | |
| public synchronized boolean imageUpdate(Image img, int infoFlags, | |
| int x, int y, | |
| int width, int height) { | |
| boolean gotInfo = false; | |
| if((infoFlags & (WIDTH | HEIGHT)) != 0) { | |
| gotInfo = true; | |
| notify(); | |
| } | |
| return gotInfo; | |
| } | |
| private synchronized int getImageWidth(Image img) { | |
| /* Wait for the width the image to | |
| * become available. | |
| */ | |
| while (img.getWidth(this) == -1) { | |
| try { | |
| wait(); | |
| } catch (InterruptedException e) { | |
| } | |
| } | |
| return img.getWidth(this); | |
| } | |
| private synchronized int getImageHeight(Image img) { | |
| /* Wait for the height the image to | |
| * become available. | |
| */ | |
| while (img.getHeight(this) == -1) { | |
| try { | |
| wait(); | |
| } catch (InterruptedException e) { | |
| } | |
| } | |
| return img.getHeight(this); | |
| } | |
| /** | |
| * This private class does not return from its constructor | |
| * until 'img's width and height are available. | |
| */ | |
| protected class ImageWaiter implements ImageObserver { | |
| private int mWidth; | |
| private int mHeight; | |
| private boolean badImage = false; | |
| ImageWaiter(Image img) { | |
| waitForDimensions(img); | |
| } | |
| public int getWidth() { | |
| return mWidth; | |
| } | |
| public int getHeight() { | |
| return mHeight; | |
| } | |
| private synchronized void waitForDimensions(Image img) { | |
| mHeight = img.getHeight(this); | |
| mWidth = img.getWidth(this); | |
| while (!badImage && (mWidth < 0 || mHeight < 0)) { | |
| try { | |
| Thread.sleep(50); | |
| } catch(InterruptedException e) { | |
| // do nothing. | |
| } | |
| mHeight = img.getHeight(this); | |
| mWidth = img.getWidth(this); | |
| } | |
| if (badImage) { | |
| mHeight = 0; | |
| mWidth = 0; | |
| } | |
| } | |
| public synchronized boolean imageUpdate(Image image, int flags, | |
| int x, int y, int w, int h) { | |
| boolean dontCallMeAgain = (flags & (HEIGHT | ABORT | ERROR)) != 0; | |
| badImage = (flags & (ABORT | ERROR)) != 0; | |
| return dontCallMeAgain; | |
| } | |
| } | |
| } |