protected void drawImageMosaic(Graphics2D g2) {
// Break the image up into tiles. Draw each
// tile with its own transparency, allowing
// the background to show through to varying
// degrees.
int side = 36;
int width = mImage.getWidth();
int height = mImage.getHeight();
for (int y = 0; y < height; y += side) {
for (int x = 0; x < width; x += side) {
// Calculate an appropriate transparency value.
float xBias = (float) x / (float) width;
float yBias = (float) y / (float) height;
float alpha = 1.0f - Math.abs(xBias - yBias);
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha));
// Draw the subimage.
int w = Math.min(side, width - x);
int h = Math.min(side, height - y);
BufferedImage tile = mImage.getSubimage(x, y, w, h);
g2.drawImage(tile, x, y, null);
}
}
// Reset the composite.
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
}
/**
* Write the given text string in the current font, centered on (x, y) and rotated by the
* specified number of degrees
*
* @param x the center x-coordinate of the text
* @param y the center y-coordinate of the text
* @param s the text
* @param degrees is the number of degrees to rotate counterclockwise
*/
public static void text(double x, double y, String s, double degrees) {
double xs = scaleX(x);
double ys = scaleY(y);
offscreen.rotate(Math.toRadians(-degrees), xs, ys);
text(x, y, s);
offscreen.rotate(Math.toRadians(+degrees), xs, ys);
}
/**
* Returns the specified image as icon.
*
* @param name name of icon
* @return icon
*/
public static ImageIcon icon(final String name) {
ImageIcon ii = ICONS.get(name);
if (ii != null) return ii;
Image img;
if (GUIConstants.scale > 1) {
// choose large image or none
final URL url =
GUIConstants.large() ? BaseXImages.class.getResource("/img/" + name + "_32.png") : null;
if (url == null) {
// resize low-res image if no hi-res image exists
img = get(url(name));
final int w = (int) (img.getWidth(null) * GUIConstants.scale);
final int h = (int) (img.getHeight(null) * GUIConstants.scale);
final BufferedImage tmp = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
final Graphics2D g2 = tmp.createGraphics();
g2.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
g2.drawImage(img, 0, 0, w, h, null);
g2.dispose();
img = tmp;
} else {
img = get(url);
}
} else {
img = get(name);
}
ii = new ImageIcon(img);
ICONS.put(name, ii);
return ii;
}
// initialize default image
private BufferedImage getDefaultImage(int w, int h) {
BufferedImage defaultImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
Graphics2D graphics2D = defaultImage.createGraphics();
graphics2D.setColor(new Color(200, 200, 200));
graphics2D.fillRect(0, 0, w, h);
graphics2D.setColor(new Color(130, 130, 130));
graphics2D.drawRect(0, 0, w - 1, h - 1);
return defaultImage;
}
/**
* Write the given text string in the current font, left-aligned at (x, y).
*
* @param x the x-coordinate of the text
* @param y the y-coordinate of the text
* @param s the text
*/
public static void textLeft(double x, double y, String s) {
offscreen.setFont(font);
FontMetrics metrics = offscreen.getFontMetrics();
double xs = scaleX(x);
double ys = scaleY(y);
int hs = metrics.getDescent();
offscreen.drawString(s, (float) (xs), (float) (ys + hs));
draw();
}
public void paint(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
// Turn on antialiasing.
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
drawBackground(g2);
drawImageMosaic(g2);
drawText(g2);
}
public void paint(Graphics g) {
gRef = (Graphics2D) g;
// change size of font
gRef.setFont(gRef.getFont().deriveFont(9.0f));
fmRef = g.getFontMetrics();
// Clear background
if (Preferences.monochrome) {
gRef.setColor(Preferences.whiteColor);
} else {
gRef.setColor(Preferences.backgroundColor);
}
gRef.fillRect(0, 0, getWidth(), getHeight());
// set colour to correct drawing colour
if (Preferences.monochrome) {
gRef.setColor(Preferences.blackColor);
} else {
gRef.setColor(Preferences.penColor);
}
gRef.translate(0, margin);
// Call c code to draw tree
gRef.scale(scale, scale);
nativeDrawTree();
}
public void setPenColour(int colour) {
if (Preferences.monochrome) {
gRef.setColor(Preferences.blackColor);
} else {
if (colour == 0) {
gRef.setColor(Preferences.penColor);
}
if (colour == 1) {
gRef.setColor(Preferences.highlightColor);
}
}
}
public int print(Graphics g,PageFormat pf,int pageIndex) {
if (pageIndex == 0) {
Graphics2D g2d= (Graphics2D)g;
g2d.translate(pf.getImageableX(), pf.getImageableY());
g2d.setColor(Color.black);
g2d.drawString("example string", 250, 250);
g2d.fillRect(0, 0, 200, 200);
return Printable.PAGE_EXISTS;
} else {
return Printable.NO_SUCH_PAGE;
}
}
/* Draws the ball at its current position */
public void draw(Graphics2D g) {
double imageWidth = img.getWidth(parent);
double imageHeight = img.getHeight(parent);
// translate image such that its centred on its actual position
objectTransform.setToTranslation(
(double) pos_x - imageWidth / 2, (double) pos_y - imageHeight / 2);
// // this rotates the planet!
// objectTransform.rotate(Math.PI/800,50.0,51.0);
g.setTransform(new AffineTransform());
g.drawImage(img, objectTransform, parent);
}
/**
* Gets a buffered image.
*
* @return the image
*/
public BufferedImage getBufferedImage() {
if (image == null && isAnImage) {
Image im = getImage();
if (im == null) {
isAnImage = false;
} else {
image =
new BufferedImage(im.getWidth(null), im.getHeight(null), BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = image.createGraphics();
g2.drawImage(im, 0, 0, null);
}
}
return image;
}
/**
* Draw picture (gif, jpg, or png) centered on (x, y), rotated given number of degrees
*
* @param x the center x-coordinate of the image
* @param y the center y-coordinate of the image
* @param s the name of the image/picture, e.g., "ball.gif"
* @param degrees is the number of degrees to rotate counterclockwise
* @throws RuntimeException if the image is corrupt
*/
public static void picture(double x, double y, String s, double degrees) {
Image image = getImage(s);
double xs = scaleX(x);
double ys = scaleY(y);
int ws = image.getWidth(null);
int hs = image.getHeight(null);
if (ws < 0 || hs < 0) throw new RuntimeException("image " + s + " is corrupt");
offscreen.rotate(Math.toRadians(-degrees), xs, ys);
offscreen.drawImage(
image, (int) Math.round(xs - ws / 2.0), (int) Math.round(ys - hs / 2.0), null);
offscreen.rotate(Math.toRadians(+degrees), xs, ys);
draw();
}
protected void drawString(Graphics2D g2, double x, double y, double theta) {
// Transform to the requested location.
g2.translate(x, y);
// Rotate by the requested angle.
g2.rotate(theta);
// Draw the first part of the string.
String first = mMessage.substring(0, mSplit);
float width = drawBoxedString(g2, first, Color.white, Color.red, 0);
// Draw the second part of the string.
String second = mMessage.substring(mSplit);
drawBoxedString(g2, second, Color.blue, Color.white, width);
// Undo the transformations.
g2.rotate(-theta);
g2.translate(-x, -y);
}
private void drawString(String str, int x, int y) {
// text does not work correctly for very small scales.
if (textEnabled && scale > 0.05) {
gRef.drawString(str, x, y);
}
}
private void fillPolyline(int x[], int y[], int length, int symbolType) {
if (!Preferences.monochrome) {
setFillColor(symbolType);
gRef.fillPolygon(x, y, length);
restoreColor();
}
}
private void fillRectangle(int x, int y, int width, int height, int symbolType) {
if (!Preferences.monochrome) {
setFillColor(symbolType);
gRef.fillRect(x, y, width, height);
restoreColor();
}
}
public void paint(Graphics g) {
Graphics2D g2d = (Graphics2D) g;
AffineTransform trans = new AffineTransform();
int width = getSize().width;
int height = getSize().height;
g2d.setColor(Color.BLACK);
g2d.fillRect(0, 0, width, height);
trans.setTransform(identity);
trans.scale(scale, scale);
g2d.drawImage(image, trans, this);
}
private void fillArc(
int x, int y, int width, int height, int startAngle, int arcAngle, int symbolType) {
if (!Preferences.monochrome) {
setFillColor(symbolType);
gRef.fillArc(x, y, width, height, startAngle, arcAngle);
restoreColor();
}
}
/**
* Set the radius of the pen to the given size.
*
* @param r the radius of the pen
* @throws RuntimeException if r is negative
*/
public static void setPenRadius(double r) {
if (r < 0) throw new RuntimeException("pen radius must be positive");
penRadius = r * DEFAULT_SIZE;
BasicStroke stroke =
new BasicStroke((float) penRadius, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
// BasicStroke stroke = new BasicStroke((float) penRadius);
offscreen.setStroke(stroke);
}
protected void drawBackground(Graphics2D g2) {
// Draw circles of different colors.
int side = 45;
int width = getSize().width;
int height = getSize().height;
Color[] colors = {
Color.yellow, Color.cyan, Color.orange, Color.pink, Color.magenta, Color.lightGray
};
for (int y = 0; y < height; y += side) {
for (int x = 0; x < width; x += side) {
Ellipse2D ellipse = new Ellipse2D.Float(x, y, side, side);
int index = (x + y) / side % colors.length;
g2.setPaint(colors[index]);
g2.fill(ellipse);
}
}
}
/**
* Set the radius of the pen to the given size.
*
* @param r the radius of the pen
* @throws IllegalArgumentException if r is negative
*/
public static void setPenRadius(double r) {
if (r < 0) throw new IllegalArgumentException("pen radius must be nonnegative");
penRadius = r;
float scaledPenRadius = (float) (r * DEFAULT_SIZE);
BasicStroke stroke =
new BasicStroke(scaledPenRadius, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
// BasicStroke stroke = new BasicStroke(scaledPenRadius);
offscreen.setStroke(stroke);
}
/**
* Draw a filled polygon with the given (x[i], y[i]) coordinates.
*
* @param x an array of all the x-coordindates of the polygon
* @param y an array of all the y-coordindates of the polygon
*/
public static void filledPolygon(double[] x, double[] y) {
int N = x.length;
GeneralPath path = new GeneralPath();
path.moveTo((float) scaleX(x[0]), (float) scaleY(y[0]));
for (int i = 0; i < N; i++) path.lineTo((float) scaleX(x[i]), (float) scaleY(y[i]));
path.closePath();
offscreen.fill(path);
draw();
}
/**
* Draw a circle of radius r, centered on (x, y).
*
* @param x the x-coordinate of the center of the circle
* @param y the y-coordinate of the center of the circle
* @param r the radius of the circle
* @throws IllegalArgumentException if the radius of the circle is negative
*/
public static void circle(double x, double y, double r) {
if (r < 0) throw new IllegalArgumentException("circle radius must be nonnegative");
double xs = scaleX(x);
double ys = scaleY(y);
double ws = factorX(2 * r);
double hs = factorY(2 * r);
if (ws <= 1 && hs <= 1) pixel(x, y);
else offscreen.draw(new Ellipse2D.Double(xs - ws / 2, ys - hs / 2, ws, hs));
draw();
}
public JGImage rotateAny(double angle) {
JGPoint size = getSize();
int sw = size.x;
int sh = size.y;
// destination size is upper bound size. Upper bound is the max
// of the longest dimension and the figure's dimension at 45 degrees
// = sw*sin(45)+sh*cos(45) ~= 1.5*(sw+sh)
int dw = (int) Math.max(Math.max(sw, sh), 0.75 * (sw + sh));
int dh = dw;
int xtrans = (dw - sw) / 2;
int ytrans = (dh - sh) / 2;
BufferedImage dst = createCompatibleImage(dw, dh, Transparency.BITMASK);
Graphics2D g = (Graphics2D) dst.getGraphics();
AffineTransform tt = AffineTransform.getTranslateInstance(xtrans, ytrans);
AffineTransform tr = AffineTransform.getRotateInstance(angle, sw / 2, sh / 2);
tt.concatenate(tr);
g.drawImage(img, tt, null);
return new JREImage(dst);
}
/**
* Draw a square of side length 2r, centered on (x, y).
*
* @param x the x-coordinate of the center of the square
* @param y the y-coordinate of the center of the square
* @param r radius is half the length of any side of the square
* @throws IllegalArgumentException if r is negative
*/
public static void square(double x, double y, double r) {
if (r < 0) throw new IllegalArgumentException("square side length must be nonnegative");
double xs = scaleX(x);
double ys = scaleY(y);
double ws = factorX(2 * r);
double hs = factorY(2 * r);
if (ws <= 1 && hs <= 1) pixel(x, y);
else offscreen.draw(new Rectangle2D.Double(xs - ws / 2, ys - hs / 2, ws, hs));
draw();
}
/**
* Draw a filled square of side length 2r, centered on (x, y).
*
* @param x the x-coordinate of the center of the square
* @param y the y-coordinate of the center of the square
* @param r radius is half the length of any side of the square
* @throws RuntimeException if r is negative
*/
public static void filledSquare(double x, double y, double r) {
if (r < 0) throw new RuntimeException("square side length can't be negative");
double xs = scaleX(x);
double ys = scaleY(y);
double ws = factorX(2 * r);
double hs = factorY(2 * r);
if (ws <= 1 && hs <= 1) pixel(x, y);
else offscreen.fill(new Rectangle2D.Double(xs - ws / 2, ys - hs / 2, ws, hs));
draw();
}
/**
* Draw filled circle of radius r, centered on (x, y).
*
* @param x the x-coordinate of the center of the circle
* @param y the y-coordinate of the center of the circle
* @param r the radius of the circle
* @throws RuntimeException if the radius of the circle is negative
*/
public static void filledCircle(double x, double y, double r) {
if (r < 0) throw new RuntimeException("circle radius can't be negative");
double xs = scaleX(x);
double ys = scaleY(y);
double ws = factorX(2 * r);
double hs = factorY(2 * r);
if (ws <= 1 && hs <= 1) pixel(x, y);
else offscreen.fill(new Ellipse2D.Double(xs - ws / 2, ys - hs / 2, ws, hs));
draw();
}
/**
* Draw a filled rectangle of given half width and half height, centered on (x, y).
*
* @param x the x-coordinate of the center of the rectangle
* @param y the y-coordinate of the center of the rectangle
* @param halfWidth is half the width of the rectangle
* @param halfHeight is half the height of the rectangle
* @throws RuntimeException if halfWidth or halfHeight is negative
*/
public static void filledRectangle(double x, double y, double halfWidth, double halfHeight) {
if (halfWidth < 0) throw new RuntimeException("half width can't be negative");
if (halfHeight < 0) throw new RuntimeException("half height can't be negative");
double xs = scaleX(x);
double ys = scaleY(y);
double ws = factorX(2 * halfWidth);
double hs = factorY(2 * halfHeight);
if (ws <= 1 && hs <= 1) pixel(x, y);
else offscreen.fill(new Rectangle2D.Double(xs - ws / 2, ys - hs / 2, ws, hs));
draw();
}
/**
* Draw an ellipse with given semimajor and semiminor axes, centered on (x, y).
*
* @param x the x-coordinate of the center of the ellipse
* @param y the y-coordinate of the center of the ellipse
* @param semiMajorAxis is the semimajor axis of the ellipse
* @param semiMinorAxis is the semiminor axis of the ellipse
* @throws RuntimeException if either of the axes are negative
*/
public static void filledEllipse(double x, double y, double semiMajorAxis, double semiMinorAxis) {
if (semiMajorAxis < 0) throw new RuntimeException("ellipse semimajor axis can't be negative");
if (semiMinorAxis < 0) throw new RuntimeException("ellipse semiminor axis can't be negative");
double xs = scaleX(x);
double ys = scaleY(y);
double ws = factorX(2 * semiMajorAxis);
double hs = factorY(2 * semiMinorAxis);
if (ws <= 1 && hs <= 1) pixel(x, y);
else offscreen.fill(new Ellipse2D.Double(xs - ws / 2, ys - hs / 2, ws, hs));
draw();
}
/**
* Draw a point at (x, y).
*
* @param x the x-coordinate of the point
* @param y the y-coordinate of the point
*/
public static void point(double x, double y) {
double xs = scaleX(x);
double ys = scaleY(y);
double r = penRadius;
// double ws = factorX(2*r);
// double hs = factorY(2*r);
// if (ws <= 1 && hs <= 1) pixel(x, y);
if (r <= 1) pixel(x, y);
else offscreen.fill(new Ellipse2D.Double(xs - r / 2, ys - r / 2, r, r));
draw();
}
