/**
* Draw a filled rectangle in current pen color.
*
* @param x starting x coord
* @param y starting y coord
* @param width rectangle width
* @param height rectangle height
*/
public void fillRect(int x, int y, int width, int height) {
if (width == m_extent.width && height == m_extent.height) {
clearRect(x, y, width, height); // if we're painting the entire background, just make it white
} else {
if (DEBUG) m_printstream.println("% fillRect");
setStateToLocal();
m_printstream.println(
xTransform(xScale(x))
+ " "
+ yTransform(yScale(y))
+ " "
+ xScale(width)
+ " "
+ yScale(height)
+ " true Rect");
}
}
/**
* Set current font. Default to Plain Courier 11 if null.
*
* @param font new font.
*/
public void setFont(Font font) {
if (font != null) {
m_localGraphicsState.setFont(font);
if (font.getName().equals(m_psGraphicsState.getFont().getName())
&& (m_psGraphicsState.getFont().getStyle() == font.getStyle())
&& (m_psGraphicsState.getFont().getSize() == yScale(font.getSize()))) return;
m_psGraphicsState.setFont(
new Font(font.getName(), font.getStyle(), yScale(getFont().getSize())));
} else {
m_localGraphicsState.setFont(new Font("Courier", Font.PLAIN, 11));
m_psGraphicsState.setFont(getFont());
}
m_printstream.println("/(" + replacePSFont(getFont().getPSName()) + ")" + " findfont");
m_printstream.println(yScale(getFont().getSize()) + " scalefont setfont");
}
/**
* Draw text in current pen color.
*
* @param str Text to output
* @param x starting x coord
* @param y starting y coord
*/
public void drawString(String str, int x, int y) {
setStateToLocal();
m_printstream.println(
xTransform(xScale(x))
+ " "
+ yTransform(yScale(y))
+ " moveto"
+ " ("
+ escape(str)
+ ") show stroke");
}
/**
* Draw a filled Oval in current pen color.
*
* @param x x-axis center of oval
* @param y y-axis center of oval
* @param width oval width
* @param height oval height
*/
public void fillOval(int x, int y, int width, int height) {
setStateToLocal();
m_printstream.println(
xTransform(xScale(x))
+ " "
+ yTransform(yScale(y))
+ " "
+ xScale(width)
+ " "
+ yScale(height)
+ " true Oval");
}
/**
* Draw an outlined rectangle in current pen color.
*
* @param x starting x coord
* @param y starting y coord
* @param width rectangle width
* @param height rectangle height
*/
public void drawRect(int x, int y, int width, int height) {
setStateToLocal();
m_printstream.println(
xTransform(xScale(x))
+ " "
+ yTransform(yScale(y))
+ " "
+ xScale(width)
+ " "
+ yScale(height)
+ " false Rect");
}
/**
* Draw a line in current pen color.
*
* @param x1 starting x coord
* @param y1 starting y coord
* @param x2 ending x coord
* @param y2 ending y coord
*/
public void drawLine(int x1, int y1, int x2, int y2) {
setStateToLocal();
m_printstream.println(
xTransform(xScale(x1))
+ " "
+ yTransform(yScale(y1))
+ " moveto "
+ xTransform(xScale(x2))
+ " "
+ yTransform(yScale(y2))
+ " lineto stroke");
}
/**
* Draw a filled rectangle with the background color.
*
* @param x starting x coord
* @param y starting y coord
* @param width rectangle width
* @param height rectangle height
*/
public void clearRect(int x, int y, int width, int height) {
setStateToLocal();
Color saveColor = getColor();
setColor(Color.white); // background color for page
m_printstream.println(
xTransform(xScale(x))
+ " "
+ yTransform(yScale(y))
+ " "
+ xScale(width)
+ " "
+ yScale(height)
+ " true Rect");
setColor(saveColor);
}
/**
* PS see http://astronomy.swin.edu.au/~pbourke/geomformats/postscript/ Java
* http://show.docjava.com:8086/book/cgij/doc/ip/graphics/SimpleImageFrame.java.html
*/
public boolean drawImage(
Image img, int x, int y, int width, int height, Color bgcolor, ImageObserver observer) {
try {
// get data from image
int[] pixels = new int[width * height];
PixelGrabber grabber = new PixelGrabber(img, 0, 0, width, height, pixels, 0, width);
grabber.grabPixels();
ColorModel model = ColorModel.getRGBdefault();
// print data to ps
m_printstream.println("gsave");
m_printstream.println(
xTransform(xScale(x)) + " " + (yTransform(yScale(y)) - yScale(height)) + " translate");
m_printstream.println(xScale(width) + " " + yScale(height) + " scale");
m_printstream.println(
width + " " + height + " " + "8" + " [" + width + " 0 0 " + (-height) + " 0 " + height
+ "]");
m_printstream.println("{<");
int index;
for (int i = 0; i < height; i++) {
for (int j = 0; j < width; j++) {
index = i * width + j;
m_printstream.print(toHex(model.getRed(pixels[index])));
m_printstream.print(toHex(model.getGreen(pixels[index])));
m_printstream.print(toHex(model.getBlue(pixels[index])));
}
m_printstream.println();
}
m_printstream.println(">}");
m_printstream.println("false 3 colorimage");
m_printstream.println("grestore");
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* Set current pen color. Default to black if null.
*
* @param c new pen color.
*/
public void setColor(Color c) {
if (c != null) {
m_localGraphicsState.setColor(c);
if (m_psGraphicsState.getColor().equals(c)) {
return;
}
m_psGraphicsState.setColor(c);
} else {
m_localGraphicsState.setColor(Color.black);
m_psGraphicsState.setColor(getColor());
}
m_printstream.print(getColor().getRed() / 255.0);
m_printstream.print(" ");
m_printstream.print(getColor().getGreen() / 255.0);
m_printstream.print(" ");
m_printstream.print(getColor().getBlue() / 255.0);
m_printstream.println(" setrgbcolor");
}
/** Clone a PostscriptGraphics object */
public Graphics create() {
if (DEBUG) m_printstream.println("%create");
PostscriptGraphics psg = new PostscriptGraphics(this);
return (psg);
}
/** Output postscript header to PrintStream, including helper macros. */
private void Header() {
m_printstream.println("%!PS-Adobe-3.0 EPSF-3.0");
m_printstream.println(
"%%BoundingBox: 0 0 " + xScale(m_extent.width) + " " + yScale(m_extent.height));
m_printstream.println("%%CreationDate: " + Calendar.getInstance().getTime());
m_printstream.println("/Oval { % x y w h filled");
m_printstream.println("gsave");
m_printstream.println("/filled exch def /h exch def /w exch def /y exch def /x exch def");
m_printstream.println("x w 2 div add y h 2 div sub translate");
m_printstream.println("1 h w div scale");
m_printstream.println("filled {0 0 moveto} if");
m_printstream.println("0 0 w 2 div 0 360 arc");
m_printstream.println("filled {closepath fill} {stroke} ifelse grestore} bind def");
m_printstream.println("/Rect { % x y w h filled");
m_printstream.println("/filled exch def /h exch def /w exch def /y exch def /x exch def");
m_printstream.println("newpath ");
m_printstream.println("x y moveto");
m_printstream.println("w 0 rlineto");
m_printstream.println("0 h neg rlineto");
m_printstream.println("w neg 0 rlineto");
m_printstream.println("closepath");
m_printstream.println("filled {fill} {stroke} ifelse} bind def");
m_printstream.println("%%BeginProlog\n%%EndProlog");
m_printstream.println("%%Page 1 1");
setFont(null); // set to default
setColor(null); // set to default
setStroke(null); // set to default
}