+++ /dev/null
-/*
- * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
- * Copyright (C) $$Year-Rel$$ The Jalview Authors
- *
- * This file is part of Jalview.
- *
- * Jalview is free software: you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3
- * of the License, or (at your option) any later version.
- *
- * Jalview 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 for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
- * The Jalview Authors are detailed in the 'AUTHORS' file.
- */
-package org.jibble.epsgraphics;
-
-import jalview.util.MessageManager;
-
-import java.awt.AlphaComposite;
-import java.awt.BasicStroke;
-import java.awt.Color;
-import java.awt.Composite;
-import java.awt.Font;
-import java.awt.FontMetrics;
-import java.awt.Graphics;
-import java.awt.GraphicsConfiguration;
-import java.awt.GraphicsDevice;
-import java.awt.GraphicsEnvironment;
-import java.awt.Image;
-import java.awt.Paint;
-import java.awt.Polygon;
-import java.awt.Rectangle;
-import java.awt.RenderingHints;
-import java.awt.Shape;
-import java.awt.Stroke;
-import java.awt.font.FontRenderContext;
-import java.awt.font.GlyphVector;
-import java.awt.font.TextAttribute;
-import java.awt.font.TextLayout;
-import java.awt.geom.AffineTransform;
-import java.awt.geom.Arc2D;
-import java.awt.geom.Area;
-import java.awt.geom.Ellipse2D;
-import java.awt.geom.GeneralPath;
-import java.awt.geom.Line2D;
-import java.awt.geom.PathIterator;
-import java.awt.geom.Point2D;
-import java.awt.geom.Rectangle2D;
-import java.awt.geom.RoundRectangle2D;
-import java.awt.image.BufferedImage;
-import java.awt.image.BufferedImageOp;
-import java.awt.image.ColorModel;
-import java.awt.image.ImageObserver;
-import java.awt.image.PixelGrabber;
-import java.awt.image.RenderedImage;
-import java.awt.image.WritableRaster;
-import java.awt.image.renderable.RenderableImage;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.io.StringWriter;
-import java.text.AttributedCharacterIterator;
-import java.text.AttributedString;
-import java.text.CharacterIterator;
-import java.util.Hashtable;
-import java.util.Map;
-
-/**
- * EpsGraphics2D is suitable for creating high quality EPS graphics for use in
- * documents and papers, and can be used just like a standard Graphics2D object.
- * <p>
- * 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.
- * <p>
- * 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.
- * <p>
- * Example usage:
- * <p>
- *
- * <pre>
- * 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();
- * </pre>
- *
- * <p>
- * 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.
- * <p>
- * Not all methods are implemented yet. Those that are not are clearly labelled.
- * <p>
- * Copyright Paul Mutton, <a
- * href="http://www.jibble.org/">http://www.jibble.org/</a>
- *
- */
-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.
- * <p>
- * 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.
- }
-
- /**
- * <b><i><font color="red">Not implemented</font></i></b> - 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;
- }
- }
-
- /**
- * <b><i><font color="red">Not implemented</font></i></b> - 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);
-}
git://source.jalview.org / jalview.git / blobdiff