- * Many Java programs use Graphics2D to draw stuff on the screen, and while it - * is easy to save the output as a png or jpeg file, it is a little harder to - * export it as an EPS for including in a document or paper. - *
- * This class makes the whole process extremely easy, because you can use it as - * if it's a Graphics2D object. The only difference is that all of the - * implemented methods create EPS output, which means the diagrams you draw can - * be resized without leading to any of the jagged edges you may see when - * resizing pixel-based images, such as jpeg and png files. - *
- * Example usage: - *
- * - *
- * Graphics2D g = new EpsGraphics2D(); - * g.setColor(Color.black); - * - * // Line thickness 2. - * g.setStroke(new BasicStroke(2.0f)); - * - * // Draw a line. - * g.drawLine(10, 10, 50, 10); - * - * // Fill a rectangle in blue - * g.setColor(Color.blue); - * g.fillRect(10, 0, 20, 20); - * - * // Get the EPS output. - * String output = g.toString(); - *- * - *
- * You do not need to worry about the size of the canvas when drawing on a - * EpsGraphics2D object. The bounding box of the EPS document will automatically - * resize to accomodate new items that you draw. - *
- * Not all methods are implemented yet. Those that are not are clearly labelled. - *
- * Copyright Paul Mutton, http://www.jibble.org/ - * - */ -public class EpsGraphics2D extends java.awt.Graphics2D -{ - - public static final String VERSION = "0.8.8"; - - /** - * Constructs a new EPS document that is initially empty and can be drawn on - * like a Graphics2D object. The EPS document is stored in memory. - */ - public EpsGraphics2D() - { - this("Untitled"); - } - - /** - * Constructs a new EPS document that is initially empty and can be drawn on - * like a Graphics2D object. The EPS document is stored in memory. - */ - public EpsGraphics2D(String title) - { - _document = new EpsDocument(title); - _backgroundColor = Color.white; - _clip = null; - _transform = new AffineTransform(); - _clipTransform = new AffineTransform(); - _accurateTextMode = true; - setColor(Color.black); - setPaint(Color.black); - setComposite(AlphaComposite.getInstance(AlphaComposite.CLEAR)); - setFont(Font.decode(null)); - setStroke(new BasicStroke()); - } - - /** - * Constructs a new EPS document that is initially empty and can be drawn on - * like a Graphics2D object. The EPS document is written to the file as it - * goes, which reduces memory usage. The bounding box of the document is fixed - * and specified at construction time by minX,minY,maxX,maxY. The file is - * flushed and closed when the close() method is called. - */ - public EpsGraphics2D(String title, File file, int minX, int minY, - int maxX, int maxY) throws IOException - { - this(title, new FileOutputStream(file), minX, minY, maxX, maxY); - } - - /** - * Constructs a new EPS document that is initially empty and can be drawn on - * like a Graphics2D object. The EPS document is written to the output stream - * as it goes, which reduces memory usage. The bounding box of the document is - * fixed and specified at construction time by minX,minY,maxX,maxY. The output - * stream is flushed and closed when the close() method is called. - */ - public EpsGraphics2D(String title, OutputStream outputStream, int minX, - int minY, int maxX, int maxY) throws IOException - { - this(title); - _document = new EpsDocument(title, outputStream, minX, minY, maxX, maxY); - } - - /** - * Constructs a new EpsGraphics2D instance that is a copy of the supplied - * argument and points at the same EpsDocument. - */ - protected EpsGraphics2D(EpsGraphics2D g) - { - _document = g._document; - _backgroundColor = g._backgroundColor; - _clip = g._clip; - _clipTransform = (AffineTransform) g._clipTransform.clone(); - _transform = (AffineTransform) g._transform.clone(); - _color = g._color; - _paint = g._paint; - _composite = g._composite; - _font = g._font; - _stroke = g._stroke; - _accurateTextMode = g._accurateTextMode; - } - - /** - * This method is called to indicate that a particular method is not supported - * yet. The stack trace is printed to the standard output. - */ - private void methodNotSupported() - { - EpsException e = new EpsException(MessageManager.formatMessage( - "exception.eps_method_not_supported", new String[] { VERSION })); - e.printStackTrace(System.err); - } - - // ///////////// Specialist methods /////////////////////// - - /** - * Sets whether to use accurate text mode when rendering text in EPS. This is - * enabled (true) by default. When accurate text mode is used, all text will - * be rendered in EPS to appear exactly the same as it would do when drawn - * with a Graphics2D context. With accurate text mode enabled, it is not - * necessary for the EPS viewer to have the required font installed. - *
- * Turning off accurate text mode will require the EPS viewer to have the - * necessary fonts installed. If you are using a lot of text, you will find - * that this significantly reduces the file size of your EPS documents. - * AffineTransforms can only affect the starting point of text using this - * simpler text mode - all text will be horizontal. - */ - public void setAccurateTextMode(boolean b) - { - _accurateTextMode = b; - } - - /** - * Returns whether accurate text mode is being used. - */ - public boolean getAccurateTextMode() - { - return _accurateTextMode; - } - - /** - * Flushes the buffered contents of this EPS document to the underlying - * OutputStream it is being written to. - */ - public void flush() throws IOException - { - _document.flush(); - } - - /** - * Closes the EPS file being output to the underlying OutputStream. The - * OutputStream is automatically flushed before being closed. If you forget to - * do this, the file may be incomplete. - */ - public void close() throws IOException - { - flush(); - _document.close(); - } - - /** - * Appends a line to the EpsDocument. - */ - private void append(String line) - { - _document.append(this, line); - } - - /** - * Returns the point after it has been transformed by the transformation. - */ - private Point2D transform(float x, float y) - { - Point2D result = new Point2D.Float(x, y); - result = _transform.transform(result, result); - result.setLocation(result.getX(), -result.getY()); - return result; - } - - /** - * Appends the commands required to draw a shape on the EPS document. - */ - private void draw(Shape s, String action) - { - - if (s != null) - { - - // Rectangle2D userBounds = s.getBounds2D(); - if (!_transform.isIdentity()) - { - s = _transform.createTransformedShape(s); - } - - // Update the bounds. - if (!action.equals("clip")) - { - Rectangle2D shapeBounds = s.getBounds2D(); - Rectangle2D visibleBounds = shapeBounds; - if (_clip != null) - { - Rectangle2D clipBounds = _clip.getBounds2D(); - visibleBounds = shapeBounds.createIntersection(clipBounds); - } - float lineRadius = _stroke.getLineWidth() / 2; - float minX = (float) visibleBounds.getMinX() - lineRadius; - float minY = (float) visibleBounds.getMinY() - lineRadius; - float maxX = (float) visibleBounds.getMaxX() + lineRadius; - float maxY = (float) visibleBounds.getMaxY() + lineRadius; - _document.updateBounds(minX, -minY); - _document.updateBounds(maxX, -maxY); - } - - append("newpath"); - int type = 0; - float[] coords = new float[6]; - PathIterator it = s.getPathIterator(null); - float x0 = 0; - float y0 = 0; - int count = 0; - while (!it.isDone()) - { - type = it.currentSegment(coords); - float x1 = coords[0]; - float y1 = -coords[1]; - float x2 = coords[2]; - float y2 = -coords[3]; - float x3 = coords[4]; - float y3 = -coords[5]; - - if (type == PathIterator.SEG_CLOSE) - { - append("closepath"); - count++; - } - else if (type == PathIterator.SEG_CUBICTO) - { - append(x1 + " " + y1 + " " + x2 + " " + y2 + " " + x3 + " " + y3 - + " curveto"); - count++; - x0 = x3; - y0 = y3; - } - else if (type == PathIterator.SEG_LINETO) - { - append(x1 + " " + y1 + " lineto"); - count++; - x0 = x1; - y0 = y1; - } - else if (type == PathIterator.SEG_MOVETO) - { - append(x1 + " " + y1 + " moveto"); - count++; - x0 = x1; - y0 = y1; - } - else if (type == PathIterator.SEG_QUADTO) - { - // Convert the quad curve into a cubic. - float _x1 = x0 + 2 / 3f * (x1 - x0); - float _y1 = y0 + 2 / 3f * (y1 - y0); - float _x2 = x1 + 1 / 3f * (x2 - x1); - float _y2 = y1 + 1 / 3f * (y2 - y1); - float _x3 = x2; - float _y3 = y2; - append(_x1 + " " + _y1 + " " + _x2 + " " + _y2 + " " + _x3 + " " - + _y3 + " curveto"); - count++; - x0 = _x3; - y0 = _y3; - } - else if (type == PathIterator.WIND_EVEN_ODD) - { - // Ignore. - } - else if (type == PathIterator.WIND_NON_ZERO) - { - // Ignore. - } - it.next(); - } - append(action); - append("newpath"); - } - } - - /** - * Returns a hex string that always contains two characters. - */ - private String toHexString(int n) - { - String result = Integer.toString(n, 16); - while (result.length() < 2) - { - result = "0" + result; - } - return result; - } - - // ///////////// Graphics2D methods /////////////////////// - - /** - * Draws a 3D rectangle outline. If it is raised, light appears to come from - * the top left. - */ - public void draw3DRect(int x, int y, int width, int height, boolean raised) - { - Color originalColor = getColor(); - Stroke originalStroke = getStroke(); - - setStroke(new BasicStroke(1.0f)); - - if (raised) - { - setColor(originalColor.brighter()); - } - else - { - setColor(originalColor.darker()); - } - - drawLine(x, y, x + width, y); - drawLine(x, y, x, y + height); - - if (raised) - { - setColor(originalColor.darker()); - } - else - { - setColor(originalColor.brighter()); - } - - drawLine(x + width, y + height, x, y + height); - drawLine(x + width, y + height, x + width, y); - - setColor(originalColor); - setStroke(originalStroke); - } - - /** - * Fills a 3D rectangle. If raised, it has bright fill and light appears to - * come from the top left. - */ - public void fill3DRect(int x, int y, int width, int height, boolean raised) - { - Color originalColor = getColor(); - - if (raised) - { - setColor(originalColor.brighter()); - } - else - { - setColor(originalColor.darker()); - } - draw(new Rectangle(x, y, width, height), "fill"); - setColor(originalColor); - draw3DRect(x, y, width, height, raised); - } - - /** - * Draws a Shape on the EPS document. - */ - public void draw(Shape s) - { - draw(s, "stroke"); - } - - /** - * Draws an Image on the EPS document. - */ - public boolean drawImage(Image img, AffineTransform xform, - ImageObserver obs) - { - AffineTransform at = getTransform(); - transform(xform); - boolean st = drawImage(img, 0, 0, obs); - setTransform(at); - return st; - } - - /** - * Draws a BufferedImage on the EPS document. - */ - public void drawImage(BufferedImage img, BufferedImageOp op, int x, int y) - { - BufferedImage img1 = op.filter(img, null); - drawImage(img1, new AffineTransform(1f, 0f, 0f, 1f, x, y), null); - } - - /** - * Draws a RenderedImage on the EPS document. - */ - public void drawRenderedImage(RenderedImage img, AffineTransform xform) - { - Hashtable properties = new Hashtable(); - String[] names = img.getPropertyNames(); - for (int i = 0; i < names.length; i++) - { - properties.put(names[i], img.getProperty(names[i])); - } - - ColorModel cm = img.getColorModel(); - WritableRaster wr = img.copyData(null); - BufferedImage img1 = new BufferedImage(cm, wr, - cm.isAlphaPremultiplied(), properties); - AffineTransform at = AffineTransform.getTranslateInstance( - img.getMinX(), img.getMinY()); - at.preConcatenate(xform); - drawImage(img1, at, null); - } - - /** - * Draws a RenderableImage by invoking its createDefaultRendering method. - */ - public void drawRenderableImage(RenderableImage img, AffineTransform xform) - { - drawRenderedImage(img.createDefaultRendering(), xform); - } - - /** - * Draws a string at (x,y) - */ - public void drawString(String str, int x, int y) - { - drawString(str, (float) x, (float) y); - } - - /** - * Draws a string at (x,y) - */ - public void drawString(String s, float x, float y) - { - if (s != null && s.length() > 0) - { - AttributedString as = new AttributedString(s); - as.addAttribute(TextAttribute.FONT, getFont()); - drawString(as.getIterator(), x, y); - } - } - - /** - * Draws the characters of an AttributedCharacterIterator, starting from - * (x,y). - */ - public void drawString(AttributedCharacterIterator iterator, int x, int y) - { - drawString(iterator, (float) x, (float) y); - } - - /** - * Draws the characters of an AttributedCharacterIterator, starting from - * (x,y). - */ - public void drawString(AttributedCharacterIterator iterator, float x, - float y) - { - if (getAccurateTextMode()) - { - TextLayout layout = new TextLayout(iterator, getFontRenderContext()); - Shape shape = layout.getOutline(AffineTransform.getTranslateInstance( - x, y)); - draw(shape, "fill"); - } - else - { - append("newpath"); - Point2D location = transform(x, y); - append(location.getX() + " " + location.getY() + " moveto"); - StringBuffer buffer = new StringBuffer(); - for (char ch = iterator.first(); ch != CharacterIterator.DONE; ch = iterator - .next()) - { - if (ch == '(' || ch == ')') - { - buffer.append('\\'); - } - buffer.append(ch); - } - append("(" + buffer.toString() + ") show"); - } - } - - /** - * Draws a GlyphVector at (x,y) - */ - public void drawGlyphVector(GlyphVector g, float x, float y) - { - Shape shape = g.getOutline(x, y); - draw(shape, "fill"); - } - - /** - * Fills a Shape on the EPS document. - */ - public void fill(Shape s) - { - draw(s, "fill"); - } - - /** - * Checks whether or not the specified Shape intersects the specified - * Rectangle, which is in device space. - */ - public boolean hit(Rectangle rect, Shape s, boolean onStroke) - { - return s.intersects(rect); - } - - /** - * Returns the device configuration associated with this EpsGraphics2D object. - */ - public GraphicsConfiguration getDeviceConfiguration() - { - GraphicsConfiguration gc = null; - GraphicsEnvironment ge = GraphicsEnvironment - .getLocalGraphicsEnvironment(); - GraphicsDevice[] gds = ge.getScreenDevices(); - for (int i = 0; i < gds.length; i++) - { - GraphicsDevice gd = gds[i]; - GraphicsConfiguration[] gcs = gd.getConfigurations(); - if (gcs.length > 0) - { - return gcs[0]; - } - } - return gc; - } - - /** - * Sets the Composite to be used by this EpsGraphics2D. EpsGraphics2D does not - * make use of these. - */ - public void setComposite(Composite comp) - { - _composite = comp; - } - - /** - * Sets the Paint attribute for the EpsGraphics2D object. Only Paint objects - * of type Color are respected by EpsGraphics2D. - */ - public void setPaint(Paint paint) - { - _paint = paint; - if (paint instanceof Color) - { - setColor((Color) paint); - } - } - - /** - * Sets the stroke. Only accepts BasicStroke objects (or subclasses of - * BasicStroke). - */ - public void setStroke(Stroke s) - { - if (s instanceof BasicStroke) - { - _stroke = (BasicStroke) s; - - append(_stroke.getLineWidth() + " setlinewidth"); - float miterLimit = _stroke.getMiterLimit(); - if (miterLimit < 1.0f) - { - miterLimit = 1; - } - append(miterLimit + " setmiterlimit"); - append(_stroke.getLineJoin() + " setlinejoin"); - append(_stroke.getEndCap() + " setlinecap"); - - StringBuffer dashes = new StringBuffer(); - dashes.append("[ "); - float[] dashArray = _stroke.getDashArray(); - if (dashArray != null) - { - for (int i = 0; i < dashArray.length; i++) - { - dashes.append((dashArray[i]) + " "); - } - } - dashes.append("]"); - append(dashes.toString() + " 0 setdash"); - } - } - - /** - * Sets a rendering hint. These are not used by EpsGraphics2D. - */ - public void setRenderingHint(RenderingHints.Key hintKey, Object hintValue) - { - // Do nothing. - } - - /** - * Returns the value of a single preference for the rendering algorithms. - * Rendering hints are not used by EpsGraphics2D. - */ - public Object getRenderingHint(RenderingHints.Key hintKey) - { - return null; - } - - /** - * Sets the rendering hints. These are ignored by EpsGraphics2D. - */ - public void setRenderingHints(Map hints) - { - // Do nothing. - } - - /** - * Adds rendering hints. These are ignored by EpsGraphics2D. - */ - public void addRenderingHints(Map hints) - { - // Do nothing. - } - - /** - * Returns the preferences for the rendering algorithms. - */ - public RenderingHints getRenderingHints() - { - return new RenderingHints(null); - } - - /** - * Translates the origin of the EpsGraphics2D context to the point (x,y) in - * the current coordinate system. - */ - public void translate(int x, int y) - { - translate((double) x, (double) y); - } - - /** - * Concatenates the current EpsGraphics2D Transformation with a translation - * transform. - */ - public void translate(double tx, double ty) - { - transform(AffineTransform.getTranslateInstance(tx, ty)); - } - - /** - * Concatenates the current EpsGraphics2D Transform with a rotation transform. - */ - public void rotate(double theta) - { - rotate(theta, 0, 0); - } - - /** - * Concatenates the current EpsGraphics2D Transform with a translated rotation - * transform. - */ - public void rotate(double theta, double x, double y) - { - transform(AffineTransform.getRotateInstance(theta, x, y)); - } - - /** - * Concatenates the current EpsGraphics2D Transform with a scaling - * transformation. - */ - public void scale(double sx, double sy) - { - transform(AffineTransform.getScaleInstance(sx, sy)); - } - - /** - * Concatenates the current EpsGraphics2D Transform with a shearing transform. - */ - public void shear(double shx, double shy) - { - transform(AffineTransform.getShearInstance(shx, shy)); - } - - /** - * Composes an AffineTransform object with the Transform in this EpsGraphics2D - * according to the rule last-specified-first-applied. - */ - public void transform(AffineTransform Tx) - { - _transform.concatenate(Tx); - setTransform(getTransform()); - } - - /** - * Sets the AffineTransform to be used by this EpsGraphics2D. - */ - public void setTransform(AffineTransform Tx) - { - if (Tx == null) - { - _transform = new AffineTransform(); - } - else - { - _transform = new AffineTransform(Tx); - } - // Need to update the stroke and font so they know the scale changed - setStroke(getStroke()); - setFont(getFont()); - } - - /** - * Gets the AffineTransform used by this EpsGraphics2D. - */ - public AffineTransform getTransform() - { - return new AffineTransform(_transform); - } - - /** - * Returns the current Paint of the EpsGraphics2D object. - */ - public Paint getPaint() - { - return _paint; - } - - /** - * returns the current Composite of the EpsGraphics2D object. - */ - public Composite getComposite() - { - return _composite; - } - - /** - * Sets the background color to be used by the clearRect method. - */ - public void setBackground(Color color) - { - if (color == null) - { - color = Color.black; - } - _backgroundColor = color; - } - - /** - * Gets the background color that is used by the clearRect method. - */ - public Color getBackground() - { - return _backgroundColor; - } - - /** - * Returns the Stroke currently used. Guaranteed to be an instance of - * BasicStroke. - */ - public Stroke getStroke() - { - return _stroke; - } - - /** - * Intersects the current clip with the interior of the specified Shape and - * sets the clip to the resulting intersection. - */ - public void clip(Shape s) - { - if (_clip == null) - { - setClip(s); - } - else - { - Area area = new Area(_clip); - area.intersect(new Area(s)); - setClip(area); - } - } - - /** - * Returns the FontRenderContext. - */ - public FontRenderContext getFontRenderContext() - { - return _fontRenderContext; - } - - // ///////////// Graphics methods /////////////////////// - - /** - * Returns a new Graphics object that is identical to this EpsGraphics2D. - */ - public Graphics create() - { - return new EpsGraphics2D(this); - } - - /** - * Returns an EpsGraphics2D object based on this Graphics object, but with a - * new translation and clip area. - */ - public Graphics create(int x, int y, int width, int height) - { - Graphics g = create(); - g.translate(x, y); - g.clipRect(0, 0, width, height); - return g; - } - - /** - * Returns the current Color. This will be a default value (black) until it is - * changed using the setColor method. - */ - public Color getColor() - { - return _color; - } - - /** - * Sets the Color to be used when drawing all future shapes, text, etc. - */ - public void setColor(Color c) - { - if (c == null) - { - c = Color.black; - } - _color = c; - append((c.getRed() / 255f) + " " + (c.getGreen() / 255f) + " " - + (c.getBlue() / 255f) + " setrgbcolor"); - } - - /** - * Sets the paint mode of this EpsGraphics2D object to overwrite the - * destination EpsDocument with the current color. - */ - public void setPaintMode() - { - // Do nothing - paint mode is the only method supported anyway. - } - - /** - * Not implemented - performs no - * action. - */ - public void setXORMode(Color c1) - { - methodNotSupported(); - } - - /** - * Returns the Font currently being used. - */ - public Font getFont() - { - return _font; - } - - /** - * Sets the Font to be used in future text. - */ - public void setFont(Font font) - { - if (font == null) - { - font = Font.decode(null); - } - _font = font; - append("/" + _font.getPSName() + " findfont " + ((int) _font.getSize()) - + " scalefont setfont"); - } - - /** - * Gets the font metrics of the current font. - */ - public FontMetrics getFontMetrics() - { - return getFontMetrics(getFont()); - } - - /** - * Gets the font metrics for the specified font. - */ - public FontMetrics getFontMetrics(Font f) - { - BufferedImage image = new BufferedImage(1, 1, - BufferedImage.TYPE_INT_RGB); - Graphics g = image.getGraphics(); - return g.getFontMetrics(f); - } - - /** - * Returns the bounding rectangle of the current clipping area. - */ - public Rectangle getClipBounds() - { - if (_clip == null) - { - return null; - } - Rectangle rect = getClip().getBounds(); - return rect; - } - - /** - * Intersects the current clip with the specified rectangle. - */ - public void clipRect(int x, int y, int width, int height) - { - clip(new Rectangle(x, y, width, height)); - } - - /** - * Sets the current clip to the rectangle specified by the given coordinates. - */ - public void setClip(int x, int y, int width, int height) - { - setClip(new Rectangle(x, y, width, height)); - } - - /** - * Gets the current clipping area. - */ - public Shape getClip() - { - if (_clip == null) - { - return null; - } - else - { - try - { - AffineTransform t = _transform.createInverse(); - t.concatenate(_clipTransform); - return t.createTransformedShape(_clip); - } catch (Exception e) - { - throw new EpsException(MessageManager.formatMessage( - "exception.eps_unable_to_get_inverse_matrix", - new String[] { _transform.toString() })); - } - } - } - - /** - * Sets the current clipping area to an arbitrary clip shape. - */ - public void setClip(Shape clip) - { - if (clip != null) - { - if (_document.isClipSet()) - { - append("grestore"); - append("gsave"); - } - else - { - _document.setClipSet(true); - append("gsave"); - } - draw(clip, "clip"); - _clip = clip; - _clipTransform = (AffineTransform) _transform.clone(); - } - else - { - if (_document.isClipSet()) - { - append("grestore"); - _document.setClipSet(false); - } - _clip = null; - } - } - - /** - * Not implemented - performs no - * action. - */ - public void copyArea(int x, int y, int width, int height, int dx, int dy) - { - methodNotSupported(); - } - - /** - * Draws a straight line from (x1,y1) to (x2,y2). - */ - public void drawLine(int x1, int y1, int x2, int y2) - { - Shape shape = new Line2D.Float(x1, y1, x2, y2); - draw(shape); - } - - /** - * Fills a rectangle with top-left corner placed at (x,y). - */ - public void fillRect(int x, int y, int width, int height) - { - Shape shape = new Rectangle(x, y, width, height); - draw(shape, "fill"); - } - - /** - * Draws a rectangle with top-left corner placed at (x,y). - */ - public void drawRect(int x, int y, int width, int height) - { - Shape shape = new Rectangle(x, y, width, height); - draw(shape); - } - - /** - * Clears a rectangle with top-left corner placed at (x,y) using the current - * background color. - */ - public void clearRect(int x, int y, int width, int height) - { - Color originalColor = getColor(); - - setColor(getBackground()); - Shape shape = new Rectangle(x, y, width, height); - draw(shape, "fill"); - - setColor(originalColor); - } - - /** - * Draws a rounded rectangle. - */ - public void drawRoundRect(int x, int y, int width, int height, - int arcWidth, int arcHeight) - { - Shape shape = new RoundRectangle2D.Float(x, y, width, height, arcWidth, - arcHeight); - draw(shape); - } - - /** - * Fills a rounded rectangle. - */ - public void fillRoundRect(int x, int y, int width, int height, - int arcWidth, int arcHeight) - { - Shape shape = new RoundRectangle2D.Float(x, y, width, height, arcWidth, - arcHeight); - draw(shape, "fill"); - } - - /** - * Draws an oval. - */ - public void drawOval(int x, int y, int width, int height) - { - Shape shape = new Ellipse2D.Float(x, y, width, height); - draw(shape); - } - - /** - * Fills an oval. - */ - public void fillOval(int x, int y, int width, int height) - { - Shape shape = new Ellipse2D.Float(x, y, width, height); - draw(shape, "fill"); - } - - /** - * Draws an arc. - */ - public void drawArc(int x, int y, int width, int height, int startAngle, - int arcAngle) - { - Shape shape = new Arc2D.Float(x, y, width, height, startAngle, - arcAngle, Arc2D.OPEN); - draw(shape); - } - - /** - * Fills an arc. - */ - public void fillArc(int x, int y, int width, int height, int startAngle, - int arcAngle) - { - Shape shape = new Arc2D.Float(x, y, width, height, startAngle, - arcAngle, Arc2D.PIE); - draw(shape, "fill"); - } - - /** - * Draws a polyline. - */ - public void drawPolyline(int[] xPoints, int[] yPoints, int nPoints) - { - if (nPoints > 0) - { - GeneralPath path = new GeneralPath(); - path.moveTo(xPoints[0], yPoints[0]); - for (int i = 1; i < nPoints; i++) - { - path.lineTo(xPoints[i], yPoints[i]); - } - draw(path); - } - } - - /** - * Draws a polygon made with the specified points. - */ - public void drawPolygon(int[] xPoints, int[] yPoints, int nPoints) - { - Shape shape = new Polygon(xPoints, yPoints, nPoints); - draw(shape); - } - - /** - * Draws a polygon. - */ - public void drawPolygon(Polygon p) - { - draw(p); - } - - /** - * Fills a polygon made with the specified points. - */ - public void fillPolygon(int[] xPoints, int[] yPoints, int nPoints) - { - Shape shape = new Polygon(xPoints, yPoints, nPoints); - draw(shape, "fill"); - } - - /** - * Fills a polygon. - */ - public void fillPolygon(Polygon p) - { - draw(p, "fill"); - } - - /** - * Draws the specified characters, starting from (x,y) - */ - public void drawChars(char[] data, int offset, int length, int x, int y) - { - String string = new String(data, offset, length); - drawString(string, x, y); - } - - /** - * Draws the specified bytes, starting from (x,y) - */ - public void drawBytes(byte[] data, int offset, int length, int x, int y) - { - String string = new String(data, offset, length); - drawString(string, x, y); - } - - /** - * Draws an image. - */ - public boolean drawImage(Image img, int x, int y, ImageObserver observer) - { - return drawImage(img, x, y, Color.white, observer); - } - - /** - * Draws an image. - */ - public boolean drawImage(Image img, int x, int y, int width, int height, - ImageObserver observer) - { - return drawImage(img, x, y, width, height, Color.white, observer); - } - - /** - * Draws an image. - */ - public boolean drawImage(Image img, int x, int y, Color bgcolor, - ImageObserver observer) - { - int width = img.getWidth(null); - int height = img.getHeight(null); - return drawImage(img, x, y, width, height, bgcolor, observer); - } - - /** - * Draws an image. - */ - public boolean drawImage(Image img, int x, int y, int width, int height, - Color bgcolor, ImageObserver observer) - { - return drawImage(img, x, y, x + width, y + height, 0, 0, width, height, - bgcolor, observer); - } - - /** - * Draws an image. - */ - public boolean drawImage(Image img, int dx1, int dy1, int dx2, int dy2, - int sx1, int sy1, int sx2, int sy2, ImageObserver observer) - { - return drawImage(img, dx1, dy1, dx2, dy2, sx1, sy1, sx2, sy2, - Color.white, observer); - } - - /** - * Draws an image. - */ - 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 (dx1 >= dx2) - { - throw new IllegalArgumentException("dx1 >= dx2"); - } - if (sx1 >= sx2) - { - throw new IllegalArgumentException("sx1 >= sx2"); - } - if (dy1 >= dy2) - { - throw new IllegalArgumentException("dy1 >= dy2"); - } - if (sy1 >= sy2) - { - throw new IllegalArgumentException("sy1 >= sy2"); - } - - append("gsave"); - - int width = sx2 - sx1; - int height = sy2 - sy1; - int destWidth = dx2 - dx1; - int destHeight = dy2 - dy1; - - int[] pixels = new int[width * height]; - PixelGrabber pg = new PixelGrabber(img, sx1, sy1, sx2 - sx1, sy2 - sy1, - pixels, 0, width); - try - { - pg.grabPixels(); - } catch (InterruptedException e) - { - return false; - } - - AffineTransform matrix = new AffineTransform(_transform); - matrix.translate(dx1, dy1); - matrix.scale(destWidth / (double) width, destHeight / (double) height); - double[] m = new double[6]; - try - { - matrix = matrix.createInverse(); - } catch (Exception e) - { - throw new EpsException(MessageManager.formatMessage( - "exception.eps_unable_to_get_inverse_matrix", - new String[] { matrix.toString() })); - } - matrix.scale(1, -1); - matrix.getMatrix(m); - append(width + " " + height + " 8 [" + m[0] + " " + m[1] + " " + m[2] - + " " + m[3] + " " + m[4] + " " + m[5] + "]"); - // Fill the background to update the bounding box. - Color oldColor = getColor(); - setColor(getBackground()); - fillRect(dx1, dy1, destWidth, destHeight); - setColor(oldColor); - append("{currentfile 3 " + width - + " mul string readhexstring pop} bind"); - append("false 3 colorimage"); - StringBuffer line = new StringBuffer(); - for (int y = 0; y < height; y++) - { - for (int x = 0; x < width; x++) - { - Color color = new Color(pixels[x + width * y]); - line.append(toHexString(color.getRed()) - + toHexString(color.getGreen()) - + toHexString(color.getBlue())); - if (line.length() > 64) - { - append(line.toString()); - line = new StringBuffer(); - } - } - } - if (line.length() > 0) - { - append(line.toString()); - } - - append("grestore"); - - return true; - } - - /** - * Disposes of all resources used by this EpsGraphics2D object. If this is the - * only remaining EpsGraphics2D instance pointing at a EpsDocument object, - * then the EpsDocument object shall become eligible for garbage collection. - */ - public void dispose() - { - _document = null; - } - - /** - * Finalizes the object. - */ - public void finalize() - { - super.finalize(); - } - - /** - * Returns the entire contents of the EPS document, complete with headers and - * bounding box. The returned String is suitable for being written directly to - * disk as an EPS file. - */ - public String toString() - { - StringWriter writer = new StringWriter(); - try - { - _document.write(writer); - _document.flush(); - _document.close(); - } catch (IOException e) - { - throw new EpsException(e.toString()); - } - return writer.toString(); - } - - /** - * Returns true if the specified rectangular area might intersect the current - * clipping area. - */ - public boolean hitClip(int x, int y, int width, int height) - { - if (_clip == null) - { - return true; - } - Rectangle rect = new Rectangle(x, y, width, height); - return hit(rect, _clip, true); - } - - /** - * Returns the bounding rectangle of the current clipping area. - */ - public Rectangle getClipBounds(Rectangle r) - { - if (_clip == null) - { - return r; - } - Rectangle rect = getClipBounds(); - r.setLocation((int) rect.getX(), (int) rect.getY()); - r.setSize((int) rect.getWidth(), (int) rect.getHeight()); - return r; - } - - private Color _color; - - private Color _backgroundColor; - - private Paint _paint; - - private Composite _composite; - - private BasicStroke _stroke; - - private Font _font; - - private Shape _clip; - - private AffineTransform _clipTransform; - - private AffineTransform _transform; - - private boolean _accurateTextMode; - - private EpsDocument _document; - - private static FontRenderContext _fontRenderContext = new FontRenderContext( - null, false, true); -}