| /* |
| * Copyright (c) 1998, 2006, 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.Graphics; |
| 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.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.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</code> object that is |
| * a copy of this <code>Graphics</code> object. |
| * @return a new graphics context that is a copy of |
| * this graphics context. |
| * @since JDK1.0 |
| */ |
| 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 JDK1.0 |
| */ |
| 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 JDK1.0 |
| */ |
| 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 JDK1.0 |
| */ |
| 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 JDK1.0 |
| */ |
| 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 JDK1.0 |
| */ |
| 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 JDK1.0 |
| */ |
| 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(java.lang.String, int, int) |
| * @see java.awt.Graphics#drawString(byte[], int, int, int, int) |
| * @see java.awt.Graphics#drawBytes(char[], int, int, int, int) |
| * @since JDK1.0 |
| */ |
| 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 JDK1.0 |
| */ |
| 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 JDK1.1 |
| */ |
| 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 JDK1.1 |
| */ |
| 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</code> 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 JDK1.1 |
| */ |
| public Shape getClip() { |
| return mGraphics.getClip(); |
| } |
| |
| |
| /** |
| * Sets the current clipping area to an arbitrary clip shape. |
| * Not all objects which implement the <code>Shape</code> |
| * interface can be used to set the clip. The only |
| * <code>Shape</code> objects which are guaranteed to be |
| * supported are <code>Shape</code> objects which are |
| * obtained via the <code>getClip</code> method and via |
| * <code>Rectangle</code> objects. |
| * @see java.awt.Graphics#getClip() |
| * @see java.awt.Graphics#clipRect |
| * @see java.awt.Graphics#setClip(int, int, int, int) |
| * @since JDK1.1 |
| */ |
| public void setClip(Shape clip) { |
| mGraphics.setClip(clip); |
| } |
| |
| |
| /** |
| * Copies an area of the component by a distance specified by |
| * <code>dx</code> and <code>dy</code>. From the point specified |
| * by <code>x</code> and <code>y</code>, 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</code> or <code>dy</code>. |
| * If a portion of the source rectangle lies outside the bounds |
| * of the component, or is obscured by another window or component, |
| * <code>copyArea</code> will be unable to copy the associated |
| * pixels. The area that is omitted can be refreshed by calling |
| * the component's <code>paint</code> 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 JDK1.0 |
| */ |
| 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 JDK1.0 |
| */ |
| 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</code> and <code>x + width - 1</code>. |
| * The top and bottom edges are at |
| * <code>y</code> and <code>y + height - 1</code>. |
| * The resulting rectangle covers an area |
| * <code>width</code> pixels wide by |
| * <code>height</code> pixels tall. |
| * The rectangle is filled using the graphics context's current color. |
| * @param x the <i>x</i> coordinate |
| * of the rectangle to be filled. |
| * @param y the <i>y</i> coordinate |
| * of the rectangle to be filled. |
| * @param width the width of the rectangle to be filled. |
| * @param height the height of the rectangle to be filled. |
| * @see java.awt.Graphics#fillRect |
| * @see java.awt.Graphics#clearRect |
| * @since JDK1.0 |
| */ |
| 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</code> followed by <code>fillRect</code> to |
| * ensure that an offscreen image is cleared to a specific color. |
| * @param x the <i>x</i> coordinate of the rectangle to clear. |
| * @param y the <i>y</i> coordinate of the rectangle to clear. |
| * @param width the width of the rectangle to clear. |
| * @param height the height of the rectangle to clear. |
| * @see java.awt.Graphics#fillRect(int, int, int, int) |
| * @see java.awt.Graphics#drawRect |
| * @see java.awt.Graphics#setColor(java.awt.Color) |
| * @see java.awt.Graphics#setPaintMode |
| * @see java.awt.Graphics#setXORMode(java.awt.Color) |
| * @since JDK1.0 |
| */ |
| 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</code> and <code>x + width</code>, |
| * respectively. The top and bottom edges of the rectangle are at |
| * <code>y</code> and <code>y + height</code>. |
| * @param x the <i>x</i> coordinate of the rectangle to be drawn. |
| * @param y the <i>y</i> coordinate of the rectangle to be drawn. |
| * @param width the width of the rectangle to be drawn. |
| * @param height the height of the rectangle to be drawn. |
| * @param arcWidth the horizontal diameter of the arc |
| * at the four corners. |
| * @param arcHeight the vertical diameter of the arc |
| * at the four corners. |
| * @see java.awt.Graphics#fillRoundRect |
| * @since JDK1.0 |
| */ |
| 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</code> and <code>x + width - 1</code>, |
| * respectively. The top and bottom edges of the rectangle are at |
| * <code>y</code> and <code>y + height - 1</code>. |
| * @param x the <i>x</i> coordinate of the rectangle to be filled. |
| * @param y the <i>y</i> coordinate of the rectangle to be filled. |
| * @param width the width of the rectangle to be filled. |
| * @param height the height of the rectangle to be filled. |
| * @param arcWidth the horizontal diameter |
| * of the arc at the four corners. |
| * @param arcHeight the vertical diameter |
| * of the arc at the four corners. |
| * @see java.awt.Graphics#drawRoundRect |
| * @since JDK1.0 |
| */ |
| 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>, <code>y</code>, |
| * <code>width</code>, and <code>height</code> arguments. |
| * <p> |
| * The oval covers an area that is |
| * <code>width + 1</code> pixels wide |
| * and <code>height + 1</code> pixels tall. |
| * @param x the <i>x</i> coordinate of the upper left |
| * corner of the oval to be drawn. |
| * @param y the <i>y</i> coordinate of the upper left |
| * corner of the oval to be drawn. |
| * @param width the width of the oval to be drawn. |
| * @param height the height of the oval to be drawn. |
| * @see java.awt.Graphics#fillOval |
| * @since JDK1.0 |
| */ |
| public void drawOval(int x, int y, int width, int height) { |
| 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 JDK1.0 |
| */ |
| 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</code> and extends |
| * for <code>arcAngle</code> degrees, using the current color. |
| * Angles are interpreted such that 0 degrees |
| * is at the 3 o'clock position. |
| * A positive value indicates a counter-clockwise rotation |
| * while a negative value indicates a clockwise rotation. |
| * <p> |
| * The center of the arc is the center of the rectangle whose origin |
| * is (<i>x</i>, <i>y</i>) and whose size is specified by the |
| * <code>width</code> and <code>height</code> arguments. |
| * <p> |
| * The resulting arc covers an area |
| * <code>width + 1</code> pixels wide |
| * by <code>height + 1</code> pixels tall. |
| * @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 JDK1.0 |
| */ |
| 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</code> and extends |
| * for <code>arcAngle</code> degrees. |
| * Angles are interpreted such that 0 degrees |
| * is at the 3 o'clock position. |
| * A positive value indicates a counter-clockwise rotation |
| * while a negative value indicates a clockwise rotation. |
| * <p> |
| * The center of the arc is the center of the rectangle whose origin |
| * is (<i>x</i>, <i>y</i>) and whose size is specified by the |
| * <code>width</code> and <code>height</code> arguments. |
| * <p> |
| * The resulting arc covers an area |
| * <code>width + 1</code> pixels wide |
| * by <code>height + 1</code> pixels tall. |
| * @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 JDK1.0 |
| */ |
| 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 JDK1.1 |
| */ |
| 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</code> line |
| * segments, where the first <code>nPoint - 1</code> |
| * line segments are line segments from |
| * <code>(xPoints[i - 1], yPoints[i - 1])</code> |
| * to <code>(xPoints[i], yPoints[i])</code>, for |
| * 1 ≤ <i>i</i> ≤ <code>nPoints</code>. |
| * The figure is automatically closed by drawing a line connecting |
| * the final point to the first point, if those points are different. |
| * @param xPoints a an array of <code>x</code> coordinates. |
| * @param yPoints a an array of <code>y</code> coordinates. |
| * @param nPoints a the total number of points. |
| * @see java.awt.Graphics#fillPolygon |
| * @see java.awt.Graphics#drawPolyline |
| * @since JDK1.0 |
| */ |
| 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</code> line |
| * segments, where the first <code>nPoint - 1</code> |
| * line segments are line segments from |
| * <code>(xPoints[i - 1], yPoints[i - 1])</code> |
| * to <code>(xPoints[i], yPoints[i])</code>, for |
| * 1 ≤ <i>i</i> ≤ <code>nPoints</code>. |
| * The figure is automatically closed by drawing a line connecting |
| * the final point to the first point, if those points are different. |
| * <p> |
| * The area inside the polygon is defined using an |
| * even-odd fill rule, also known as the alternating rule. |
| * @param xPoints a an array of <code>x</code> coordinates. |
| * @param yPoints a an array of <code>y</code> coordinates. |
| * @param nPoints a the total number of points. |
| * @see java.awt.Graphics#drawPolygon(int[], int[], int) |
| * @since JDK1.0 |
| */ |
| 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 JDK1.0 |
| */ |
| 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 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 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</code> returns <code>false</code>. As more of |
| * the image becomes available, the process that draws the image notifies |
| * the specified image observer. |
| * @param img the specified image to be drawn. |
| * @param x the <i>x</i> coordinate. |
| * @param y the <i>y</i> coordinate. |
| * @param observer object to be notified as more of |
| * the image is converted. |
| * @see java.awt.Image |
| * @see java.awt.image.ImageObserver |
| * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) |
| * @since JDK1.0 |
| */ |
| public boolean drawImage(Image img, int x, int y, |
| ImageObserver observer) { |
| |
| 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</code> returns <code>false</code>. As more of |
| * the image becomes available, the process that draws the image notifies |
| * the image observer by calling its <code>imageUpdate</code> method. |
| * <p> |
| * A scaled version of an image will not necessarily be |
| * available immediately just because an unscaled version of the |
| * image has been constructed for this output device. Each size of |
| * the image may be cached separately and generated from the original |
| * data in a separate image production sequence. |
| * @param img the specified image to be drawn. |
| * @param x the <i>x</i> coordinate. |
| * @param y the <i>y</i> coordinate. |
| * @param width the width of the rectangle. |
| * @param height the height of the rectangle. |
| * @param observer object to be notified as more of |
| * the image is converted. |
| * @see java.awt.Image |
| * @see java.awt.image.ImageObserver |
| * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) |
| * @since JDK1.0 |
| */ |
| public boolean drawImage(Image img, int x, int y, |
| int width, int height, |
| ImageObserver observer) { |
| |
| 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</code> returns <code>false</code>. As more of |
| * the image becomes available, the process that draws the image notifies |
| * the specified image observer. |
| * @param img the specified image to be drawn. |
| * @param x the <i>x</i> coordinate. |
| * @param y the <i>y</i> coordinate. |
| * @param bgcolor the background color to paint under the |
| * non-opaque portions of the image. |
| * @param observer object to be notified as more of |
| * the image is converted. |
| * @see java.awt.Image |
| * @see java.awt.image.ImageObserver |
| * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) |
| * @since JDK1.0 |
| */ |
| 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</code> returns <code>false</code>. As more of |
| * the image becomes available, the process that draws the image notifies |
| * the specified image observer. |
| * <p> |
| * A scaled version of an image will not necessarily be |
| * available immediately just because an unscaled version of the |
| * image has been constructed for this output device. Each size of |
| * the image may be cached separately and generated from the original |
| * data in a separate image production sequence. |
| * @param img the specified image to be drawn. |
| * @param x the <i>x</i> coordinate. |
| * @param y the <i>y</i> coordinate. |
| * @param width the width of the rectangle. |
| * @param height the height of the rectangle. |
| * @param bgcolor the background color to paint under the |
| * non-opaque portions of the image. |
| * @param observer object to be notified as more of |
| * the image is converted. |
| * @see java.awt.Image |
| * @see java.awt.image.ImageObserver |
| * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) |
| * @since JDK1.0 |
| */ |
| public boolean drawImage(Image img, int x, int y, |
| int width, int height, |
| Color bgcolor, |
| ImageObserver observer) { |
| |
| if (img == null) { |
| return true; |
| } |
| |
| 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</code> returns <code>false</code>. As more of |
| * the image becomes available, the process that draws the image notifies |
| * the specified image observer. |
| * <p> |
| * This method always uses the unscaled version of the image |
| * to render the scaled rectangle and performs the required |
| * scaling on the fly. It does not use a cached, scaled version |
| * of the image for this operation. Scaling of the image from source |
| * to destination is performed such that the first coordinate |
| * of the source rectangle is mapped to the first coordinate of |
| * the destination rectangle, and the second source coordinate is |
| * mapped to the second destination coordinate. The subimage is |
| * scaled and flipped as needed to preserve those mappings. |
| * @param img the specified image to be drawn |
| * @param dx1 the <i>x</i> coordinate of the first corner of the |
| * destination rectangle. |
| * @param dy1 the <i>y</i> coordinate of the first corner of the |
| * destination rectangle. |
| * @param dx2 the <i>x</i> coordinate of the second corner of the |
| * destination rectangle. |
| * @param dy2 the <i>y</i> coordinate of the second corner of the |
| * destination rectangle. |
| * @param sx1 the <i>x</i> coordinate of the first corner of the |
| * source rectangle. |
| * @param sy1 the <i>y</i> coordinate of the first corner of the |
| * source rectangle. |
| * @param sx2 the <i>x</i> coordinate of the second corner of the |
| * source rectangle. |
| * @param sy2 the <i>y</i> coordinate of the second corner of the |
| * source rectangle. |
| * @param observer object to be notified as more of the image is |
| * scaled and converted. |
| * @see java.awt.Image |
| * @see java.awt.image.ImageObserver |
| * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) |
| * @since JDK1.1 |
| */ |
| public boolean drawImage(Image img, |
| int dx1, int dy1, int dx2, int dy2, |
| int sx1, int sy1, int sx2, int sy2, |
| ImageObserver observer) { |
| |
| 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</code> returns <code>false</code>. As more of |
| * the image becomes available, the process that draws the image notifies |
| * the specified image observer. |
| * <p> |
| * This method always uses the unscaled version of the image |
| * to render the scaled rectangle and performs the required |
| * scaling on the fly. It does not use a cached, scaled version |
| * of the image for this operation. Scaling of the image from source |
| * to destination is performed such that the first coordinate |
| * of the source rectangle is mapped to the first coordinate of |
| * the destination rectangle, and the second source coordinate is |
| * mapped to the second destination coordinate. The subimage is |
| * scaled and flipped as needed to preserve those mappings. |
| * @param img the specified image to be drawn |
| * @param dx1 the <i>x</i> coordinate of the first corner of the |
| * destination rectangle. |
| * @param dy1 the <i>y</i> coordinate of the first corner of the |
| * destination rectangle. |
| * @param dx2 the <i>x</i> coordinate of the second corner of the |
| * destination rectangle. |
| * @param dy2 the <i>y</i> coordinate of the second corner of the |
| * destination rectangle. |
| * @param sx1 the <i>x</i> coordinate of the first corner of the |
| * source rectangle. |
| * @param sy1 the <i>y</i> coordinate of the first corner of the |
| * source rectangle. |
| * @param sx2 the <i>x</i> coordinate of the second corner of the |
| * source rectangle. |
| * @param sy2 the <i>y</i> coordinate of the second corner of the |
| * source rectangle. |
| * @param bgcolor the background color to paint under the |
| * non-opaque portions of the image. |
| * @param observer object to be notified as more of the image is |
| * scaled and converted. |
| * @see java.awt.Image |
| * @see java.awt.image.ImageObserver |
| * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) |
| * @since JDK1.1 |
| */ |
| public boolean drawImage(Image img, |
| int dx1, int dy1, int dx2, int dy2, |
| int sx1, int sy1, int sx2, int sy2, |
| Color bgcolor, |
| ImageObserver observer) { |
| |
| 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</code> object cannot be used after |
| * <code>dispose</code>has been called. |
| * <p> |
| * When a Java program runs, a large number of <code>Graphics</code> |
| * 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</code> and <code>update</code> methods |
| * of components are automatically released by the system when |
| * those methods return. For efficiency, programmers should |
| * call <code>dispose</code> when finished using |
| * a <code>Graphics</code> object only if it was created |
| * directly from a component or another <code>Graphics</code> 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 JDK1.0 |
| */ |
| public void dispose() { |
| mGraphics.dispose(); |
| } |
| |
| /** |
| * Empty finalizer as no clean up needed here. |
| */ |
| 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 s 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 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 GradientPaint |
| * @see 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 RenderingHings |
| */ |
| 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 currrent 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 TransformChain |
| * @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 TransformChain |
| * @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 backgroung 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</code> |
| * 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; |
| } |
| |
| synchronized private 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; |
| } |
| } |
| |
| synchronized public 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; |
| } |
| |
| } |
| } |
