* 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 accommodate new items that you draw. *
* Not all methods are implemented yet. Those that are not are clearly labelled. *
* Copyright 2001-2006 Paul James Mutton, http://www.jibble.org/
* Copyright 2007 Arnaud Blouin
* 08/09/07
* @version 0.1
*/
public class EpsGraphics2D extends java.awt.Graphics2D
{
public static final String VERSION = "0.1";
public static final int BLACK_AND_WHITE = 1;
public static final int GRAYSCALE = 2;
public static final int RGB = 3; // Default
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 int _colorDepth;
private EpsDocument _document;
private static FontRenderContext _fontRenderContext = new FontRenderContext(null, false, true);
/**
* 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.
* @since 0.1
*/
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.
* @since 0.1
*/
public EpsGraphics2D(String title)
{
_document = new EpsDocument(title);
_backgroundColor = Color.white;
_clip = null;
_transform = new AffineTransform();
_clipTransform = new AffineTransform();
_accurateTextMode = true;
_colorDepth = EpsGraphics2D.RGB;
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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;
_colorDepth = g._colorDepth;
}
/**
* This method is called to indicate that a particular method is not
* supported yet. The stack trace is printed to the standard output.
* @since 0.1
*/
private void methodNotSupported()
{
EpsException e = new EpsException("Method not currently supported by jlibeps version " + 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.
* @since 0.1
*/
public void setAccurateTextMode(boolean b)
{
_accurateTextMode = b;
if(!getAccurateTextMode())
setFont(getFont());
}
/**
* Returns whether accurate text mode is being used.
* @since 0.1
*/
public boolean getAccurateTextMode()
{
return _accurateTextMode;
}
/**
* Sets the number of colours to use when drawing on the document. Can be
* either EpsGraphics2D.RGB (default) or EpsGraphics2D.GREYSCALE.
* @since 0.1
*/
public void setColorDepth(int c)
{
if(c == RGB || c == GRAYSCALE || c == BLACK_AND_WHITE)
_colorDepth = c;
}
/**
* Returns the colour depth used for all drawing operations. This can be
* either EpsGraphics2D.RGB (default) or EpsGraphics2D.GREYSCALE.
* @since 0.1
*/
public int getColorDepth()
{
return _colorDepth;
}
/**
* Flushes the buffered contents of this EPS document to the underlying
* OutputStream it is being written to.
* @since 0.1
*/
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.
* @since 0.1
*/
public void close() throws IOException
{
flush();
_document.close();
}
/**
* Appends a line to the EpsDocument.
* @since 0.1
*/
private void append(String line)
{
_document.append(this, line);
}
/**
* Returns the point after it has been transformed by the transformation.
* @since 0.1
*/
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.
* @since 0.1
*/
private void draw(Shape s, String action)
{
if(s != null)
{
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
public void draw(Shape s)
{
draw(s, "stroke");
}
/**
* Draws an Image on the EPS document.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
public void drawRenderableImage(RenderableImage img, AffineTransform xform)
{
drawRenderedImage(img.createDefaultRendering(), xform);
}
/**
* Draws a string at (x,y).
* @since 0.1
*/
public void drawString(String str, int x, int y)
{
drawString(str, (float)x, (float)y);
}
/**
* Draws a string at (x,y).
* @since 0.1
*/
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).
* @since 0.1
*/
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).
* @since 0.1
*/
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).
* @since 0.1
*/
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.
* @since 0.1
*/
public void fill(Shape s)
{
draw(s, "fill");
}
/**
* Checks whether or not the specified Shape intersects the specified Rectangle, which is in device space.
* @since 0.1
*/
public boolean hit(Rectangle rect, Shape s, boolean onStroke)
{
return s.intersects(rect);
}
/**
* Returns the device configuration associated with this EpsGraphics2D object.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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).
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
public Object getRenderingHint(RenderingHints.Key hintKey)
{
return null;
}
/**
* Sets the rendering hints. These are ignored by EpsGraphics2D.
* @since 0.1
*/
public void setRenderingHints(Map hints)
{
// Do nothing.
}
/**
* Adds rendering hints. These are ignored by EpsGraphics2D.
* @since 0.1
*/
public void addRenderingHints(Map hints)
{
// Do nothing.
}
/**
* Returns the preferences for the rendering algorithms.
* @since 0.1
*/
public RenderingHints getRenderingHints()
{
return new RenderingHints(null);
}
/**
* Translates the origin of the EpsGraphics2D context to the point (x,y) in the current coordinate system.
* @since 0.1
*/
public void translate(int x, int y)
{
translate((double)x, (double)y);
}
/**
* Concatenates the current EpsGraphics2D Transformation with a translation transform.
* @since 0.1
*/
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.
* @since 0.1
*/
public void rotate(double theta, double x, double y)
{
transform(AffineTransform.getRotateInstance(theta, x, y));
}
/**
* Concatenates the current EpsGraphics2D Transform with a scaling transformation.
* @since 0.1
*/
public void scale(double sx, double sy)
{
transform(AffineTransform.getScaleInstance(sx, sy));
}
/**
* Concatenates the current EpsGraphics2D Transform with a shearing transform.
* @since 0.1
*/
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.
* @since 0.1
*/
public void transform(AffineTransform Tx)
{
_transform.concatenate(Tx);
setTransform(getTransform());
}
/**
* Sets the AffineTransform to be used by this EpsGraphics2D.
* @since 0.1
*/
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.
* @since 0.1
*/
public AffineTransform getTransform()
{
return new AffineTransform(_transform);
}
/**
* Returns the current Paint of the EpsGraphics2D object.
* @since 0.1
*/
public Paint getPaint()
{
return _paint;
}
/**
* returns the current Composite of the EpsGraphics2D object.
* @since 0.1
*/
public Composite getComposite()
{
return _composite;
}
/**
* Sets the background colour to be used by the clearRect method.
* @since 0.1
*/
public void setBackground(Color color)
{
if(color == null)
color = Color.black;
_backgroundColor = color;
}
/**
* Gets the background colour that is used by the clearRect method.
* @since 0.1
*/
public Color getBackground()
{
return _backgroundColor;
}
/**
* Returns the Stroke currently used. Guaranteed to be an instance of BasicStroke.
* @since 0.1
*/
public Stroke getStroke()
{
return _stroke;
}
/**
* Intersects the current clip with the interior of the specified Shape and
* sets the clip to the resulting intersection.
* @since 0.1
*/
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.
* @since 0.1
*/
public FontRenderContext getFontRenderContext()
{
return _fontRenderContext;
}
/////////////// Graphics methods ///////////////////////
/**
* Returns a new Graphics object that is identical to this EpsGraphics2D.
* @since 0.1
*/
public Graphics create()
{
return new EpsGraphics2D(this);
}
/**
* Returns an EpsGraphics2D object based on this Graphics object, but with a
* new translation and clip area.
* @since 0.1
*/
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.
* @since 0.1
*/
public Color getColor()
{
return _color;
}
/**
* Sets the Color to be used when drawing all future shapes, text, etc.
* @since 0.1
*/
public void setColor(Color c)
{
if(c == null)
c = Color.black;
_color = c;
if(getColorDepth() == BLACK_AND_WHITE)
{
float value = 0;
if(c.getRed() + c.getGreen() + c.getBlue() > 255 * 1.5 - 1)
value = 1;
append(value + " setgray");
}
else
if(getColorDepth() == GRAYSCALE)
{
float value = ((c.getRed() + c.getGreen() + c.getBlue()) / (3 * 255f));
append(value + " setgray");
}
else
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 colour.
* @since 0.1
*/
public void setPaintMode()
{
// Do nothing - paint mode is the only method supported anyway.
}
/**
* Not implemented - performs no action.
* @since 0.1
*/
public void setXORMode(Color c1)
{
methodNotSupported();
}
/**
* Returns the Font currently being used.
* @since 0.1
*/
public Font getFont()
{
return _font;
}
/**
* Sets the Font to be used in future text.
* @since 0.1
*/
public void setFont(Font font)
{
if(font == null)
font = Font.decode(null);
_font = font;
if(!getAccurateTextMode())
append("/" + _font.getPSName() + " findfont " + _font.getSize() + " scalefont setfont");
}
/**
* Gets the font metrics of the current font.
* @since 0.1
*/
public FontMetrics getFontMetrics()
{
return getFontMetrics(getFont());
}
/**
* Gets the font metrics for the specified font.
* @since 0.1
*/
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.
* @since 0.1
*/
public Rectangle getClipBounds()
{
if(_clip == null)
return null;
return getClip().getBounds();
}
/**
* Intersects the current clip with the specified rectangle.
* @since 0.1
*/
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.
* @since 0.1
*/
public void setClip(int x, int y, int width, int height)
{
setClip(new Rectangle(x, y, width, height));
}
/**
* Gets the current clipping area.
* @since 0.1
*/
public Shape getClip()
{
if(_clip == null)
return null;
try
{
AffineTransform t = _transform.createInverse();
t.concatenate(_clipTransform);
return t.createTransformedShape(_clip);
}catch(Exception e)
{
throw new EpsException("Unable to get inverse of matrix: " + _transform);
}
}
/**
* Sets the current clipping area to an arbitrary clip shape.
* @since 0.1
*/
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.
* @since 0.1
*/
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).
* @since 0.1
*/
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).
* @since 0.1
*/
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).
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
public void drawPolygon(int[] xPoints, int[] yPoints, int nPoints)
{
Shape shape = new Polygon(xPoints, yPoints, nPoints);
draw(shape);
}
/**
* Draws a polygon.
* @since 0.1
*/
public void drawPolygon(Polygon p)
{
draw(p);
}
/**
* Fills a polygon made with the specified points.
* @since 0.1
*/
public void fillPolygon(int[] xPoints, int[] yPoints, int nPoints)
{
Shape shape = new Polygon(xPoints, yPoints, nPoints);
draw(shape, "fill");
}
/**
* Fills a polygon.
* @since 0.1
*/
public void fillPolygon(Polygon p)
{
draw(p, "fill");
}
/**
* Draws the specified characters, starting from (x,y).
* @since 0.1
*/
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).
* @since 0.1
*/
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.
* @since 0.1
*/
public boolean drawImage(Image img, int x, int y, ImageObserver observer)
{
return drawImage(img, x, y, Color.white, observer);
}
/**
* Draws an image.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
public boolean drawImage(Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2,
Color bgcolor, ImageObserver observer)
{
if(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("Unable to get inverse of matrix: " + matrix);
}
matrix.scale(1, -1);
matrix.getMatrix(m);
String bitsPerSample = "8";
// 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(getColorDepth() == BLACK_AND_WHITE)
{
// Should really use imagemask.
append("{currentfile " + width + " string readhexstring pop} bind");
append("image");
}
else
if(getColorDepth() == GRAYSCALE)
{
append("{currentfile " + width + " string readhexstring pop} bind");
append("image");
}
else
{
append("{currentfile 3 " + width + " mul string readhexstring pop} bind");
append("false 3 colorimage");
}
System.err.println(getColorDepth());
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(getColorDepth() == BLACK_AND_WHITE)
if(color.getRed() + color.getGreen() + color.getBlue() > 255 * 1.5 - 1)
line.append("ff");
else
line.append("00");
else
if(getColorDepth() == GRAYSCALE)
line.append(toHexString((color.getRed() + color.getGreen() + color.getBlue()) / 3));
else
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.
* @since 0.1
*/
public void dispose()
{
_document = null;
}
/**
* Finalises the object.
* @since 0.1
*/
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.
* @since 0.1
*/
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.
* @since 0.1
*/
public boolean hitClip(int x, int y, int width, int height)
{
if(_clip == null)
return true;
return hit(new Rectangle(x, y, width, height), _clip, true);
}
/**
* Returns the bounding rectangle of the current clipping area.
* @since 0.1
*/
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;
}
}
jlibeps-0.1+2.orig/src/org/sourceforge/jlibeps/epsgraphics/EpsException.java 0000644 0000000 0000000 00000001673 10656642424 024116 0 ustar /*
* Copyright 2001-2006 Paul James Mutton, http://www.jibble.org/
* Copyright 2007 Arnaud Blouin
*
* This file is part of jlibeps.
*
* jlibeps 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.
*
* jlibeps is distributed 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.
*
*/
package org.sourceforge.jlibeps.epsgraphics;
/**
* Copyright 2001-2006 Paul James Mutton, http://www.jibble.org/
* Copyright 2007 Arnaud Blouin
* 08/09/07
* @version 0.1
*/
public class EpsException extends RuntimeException
{
public EpsException(String message)
{
super(message);
}
}
jlibeps-0.1+2.orig/.project 0000644 0000000 0000000 00000000556 10656334550 012450 0 ustar