/**
* EpsGraphics.java
*
* This file is part of the EPS Graphics Library
*
* The EPS Graphics Library 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 2 of the License, or
* (at your option) any later version.
*
* The EPS Graphics Library 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 the EPS Graphics Library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Copyright (c) 2001-2004, Paul Mutton
*
* Copyright (c) 2006-2009, Thomas Abeel
*
* Project: http://sourceforge.net/projects/epsgraphics/
*
* based on original code by Paul Mutton, http://www.jibble.org/
*/
package net.sf.epsgraphics;
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.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.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;
/**
* EpsGraphics 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
* EpsGraphics 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.
*
*/
public class EpsGraphics extends java.awt.Graphics2D {
public static final String VERSION = "1.0.0";
/**
* 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 EpsGraphics(String title, OutputStream outputStream, int minX,
int minY, int maxX, int maxY, ColorMode colorMode)
throws IOException {
_document = new EpsDocument(title, outputStream, minX, minY, maxX, maxY);
this.colorMode = colorMode;
_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());
}
/**
* Copy constructor. Creates a copy of this EPSGraphics object.
*/
public EpsGraphics(EpsGraphics g) throws IOException {
System.err.println("G: " + g._document);
EpsDocument doc = g._document;
this._document = doc;
this.colorMode = g.colorMode;
_backgroundColor = g._backgroundColor;
_clip = g.getClip();
_transform = g.getTransform();
_clipTransform = g._clipTransform;
_accurateTextMode = true;
setColor(g.getColor());
setPaint(g.getPaint());
setComposite(g.getComposite());
setFont(g.getFont());
setStroke(g.getStroke());
}
/**
* 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() {
throw new RuntimeException(
"Method not currently supported by EpsGraphics2D version "
+ VERSION);
}
// ///////////// 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;
if (!getAccurateTextMode()) {
setFont(getFont());
}
}
/**
* 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();
System.err.println("Document is closed");
}
/**
* 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(double x, double y) {
Point2D result = new Point2D.Double(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) {
appendStroke();
if (!_transform.isIdentity()) {
s = _transform.createTransformedShape(s);
}
append("newpath");
int type = 0;
double[] coords = new double[6];
PathIterator it = s.getPathIterator(null);
double x0 = 0;
double y0 = 0;
int count = 0;
while (!it.isDone()) {
type = it.currentSegment(coords);
double x1 = coords[0];
double y1 = -coords[1];
double x2 = coords[2];
double y2 = -coords[3];
double x3 = coords[4];
double 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.
double _x1 = x0 + 2 / 3f * (x1 - x0);
double _y1 = y0 + 2 / 3f * (y1 - y0);
double _x2 = x1 + 1 / 3f * (x2 - x1);
double _y2 = y1 + 1 / 3f * (y2 - y1);
double _x3 = x2;
double _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.
*/
@Override
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<String, Object> properties = new Hashtable<String, Object>();
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((float) x, (float) 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);
}
}
Stroke currentStroke = null;
/**
* Sets the stroke. Only accepts BasicStroke objects (or subclasses of
* BasicStroke).
*/
public void setStroke(Stroke s) {
this.currentStroke = s;
}
public void appendStroke() {
if (currentStroke instanceof BasicStroke) {
_stroke = (BasicStroke) currentStroke;
append(_stroke.getLineWidth() + " setlinewidth");
double 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.
*/
@Override
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.
*/
@Override
public Object getRenderingHint(RenderingHints.Key hintKey) {
return null;
}
/**
* Sets the rendering hints. These are ignored by EpsGraphics2D.
*/
@Override
public void setRenderingHints(Map hints) {
// Do nothing.
}
/**
* Adds rendering hints. These are ignored by EpsGraphics2D.
*/
@Override
public void addRenderingHints(Map hints) {
// Do nothing.
}
/**
* Returns the preferences for the rendering algorithms.
*/
@Override
public RenderingHints getRenderingHints() {
return new RenderingHints(null);
}
/**
* Translates the origin of the EpsGraphics2D context to the point (x,y) in
* the current coordinate system.
*/
@Override
public void translate(int x, int y) {
translate((double) x, (double) y);
}
/**
* Concatenates the current EpsGraphics2D Transformation with a translation
* transform.
*/
@Override
public void translate(double tx, double ty) {
transform(AffineTransform.getTranslateInstance(tx, ty));
}
/**
* Concatenates the current EpsGraphics2D Transform with a rotation
* transform.
*/
@Override
public void rotate(double theta) {
rotate(theta, 0, 0);
}
/**
* Concatenates the current EpsGraphics2D Transform with a translated
* rotation transform.
*/
@Override
public void rotate(double theta, double x, double y) {
transform(AffineTransform.getRotateInstance(theta, x, y));
}
/**
* Concatenates the current EpsGraphics2D Transform with a scaling
* transformation.
*/
@Override
public void scale(double sx, double sy) {
transform(AffineTransform.getScaleInstance(sx, sy));
}
/**
* Concatenates the current EpsGraphics2D Transform with a shearing
* transform.
*/
@Override
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.
*/
@Override
public void transform(AffineTransform Tx) {
_transform.concatenate(Tx);
setTransform(getTransform());
}
/**
* Sets the AffineTransform to be used by this EpsGraphics2D.
*/
@Override
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() {
if (_paint == null)
return Color.black;
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 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() {
if (color == null)
return Color.black;
return color;
}
/**
* Sets the Color to be used when drawing all future shapes, text, etc.
*/
public void setColor(Color color) {
if (color == null) {
color = Color.BLACK;
}
this.color = color;
switch (colorMode) {
case BLACK_AND_WHITE:
double value = 0;
if (color.getRed() + color.getGreen() + color.getBlue() > 255 * 1.5 - 1) {
value = 1;
}
append(value + " setgray");
break;
case GRAYSCALE:
double grayvalue = ((color.getRed() + color.getGreen() + color
.getBlue()) / (3 * 255f));
append(grayvalue + " setgray");
break;
case COLOR_RGB:
append((color.getRed() / 255f) + " " + (color.getGreen() / 255f)
+ " " + (color.getBlue() / 255f) + " setrgbcolor");
break;
case COLOR_CMYK:
if (color.equals(Color.BLACK)) {
append("0.0 0.0 0.0 1.0 setcmykcolor");
} else {
double c = 1 - (color.getRed() / 255f);
double m = 1 - (color.getGreen() / 255f);
double y = 1 - (color.getBlue() / 255f);
double k = Math.min(Math.min(c, y), m);
append((c - k) / (1 - k) + " " + (m - k) / (1 - k) + " "
+ (y - k) / (1 - k) + " " + k + " setcmykcolor");
}
break;
}
}
/**
* 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;
if (!getAccurateTextMode()) {
append("/" + _font.getPSName() + " findfont "
+ ((int) _font.getSize()) + " scalefont setfont");
}
}
/**
* Gets the font metrics of the current font.
*/
@Override
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 RuntimeException("Unable to get inverse of matrix: "
+ _transform);
}
}
}
/**
* 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.Double(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.Double(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.Double(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.Double(x, y, width, height);
draw(shape);
}
/**
* Fills an oval.
*/
public void fillOval(int x, int y, int width, int height) {
Shape shape = new Ellipse2D.Double(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.Double(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.Double(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, img.getWidth(observer), img.getHeight(observer),
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 RuntimeException("Unable to get inverse of matrix: "
+ matrix);
}
matrix.scale(1, -1);
matrix.getMatrix(m);
String bitsPerSample = "8";
// TODO Not using proper imagemask function yet
// if (getColorDepth() == BLACK_AND_WHITE) {
// bitsPerSample = "true";
// }
append(width + " " + height + " " + bitsPerSample + " [" + 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);
if (this.colorMode.equals(ColorMode.BLACK_AND_WHITE)
|| this.colorMode.equals(ColorMode.GRAYSCALE)) {
// TODO Should really use imagemask.
append("{currentfile " + width + " string readhexstring pop} bind");
append("image");
} else {// TODO: no difference between RGB and CMYK
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]);
if (this.colorMode.equals(ColorMode.BLACK_AND_WHITE)) {
if (color.getRed() + color.getGreen() + color.getBlue() > 255 * 1.5 - 1) {
line.append("ff");
} else {
line.append("00");
}
} else if (this.colorMode.equals(ColorMode.GRAYSCALE)) {
line
.append(toHexString((color.getRed()
+ color.getGreen() + color.getBlue()) / 3));
} else {// TODO: no difference between RGB and CMYK
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 EpsGraphics object. If this is the
* only remaining EpsGraphics instance pointing at a EpsDocument object,
* then the EpsDocument object shall become eligible for garbage collection.
*/
public void dispose() {
System.err.println("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() {
if (_document == null)
return null;
StringWriter writer = new StringWriter();
try {
_document.write(writer);
_document.flush();
_document.close();
} catch (IOException e) {
throw new RuntimeException(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 AffineTransform _clipTransform;
private Color _backgroundColor;
private Paint _paint;
private Composite _composite;
private BasicStroke _stroke;
private Font _font;
private Shape _clip;
private AffineTransform _transform = new AffineTransform();
private boolean _accurateTextMode;
private EpsDocument _document;
private static FontRenderContext _fontRenderContext = new FontRenderContext(
null, false, true);
private ColorMode colorMode = ColorMode.COLOR_RGB;
@Override
public Graphics create() {
try {
return new EpsGraphics(this);
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException("Could not create EpsGraphics object.");
}
}
}