static {
Stroke stroke = new BasicStroke(2);
selectionShape = stroke.createStrokedShape(hitRect);
format.setMinimumIntegerDigits(1);
format.setMinimumFractionDigits(1);
format.setMaximumFractionDigits(2);
}
/**
* Get the bounding box of the shape when stroked. This method takes account of the thickness of
* the stroke.
*/
public Rectangle2D getBounds() {
// FIXME: these bounds REALLY need to be cached. But it's
// painful because of the public members.
if (stroke == null) {
return shape.getBounds2D();
} else if (stroke instanceof BasicStroke) {
// For some reason (antialiasing?) the bounds returned by
// BasicStroke is off by one. This code works around it.
// if all we want is the bounds, then we don't need to actually
// stroke the shape. We've had reports that this is no longer
// necessary with JDK1.3.
Rectangle2D rect = shape.getBounds2D();
int width = (int) ((BasicStroke) stroke).getLineWidth() + 2;
return new Rectangle2D.Double(
rect.getX() - width,
rect.getY() - width,
rect.getWidth() + width + width,
rect.getHeight() + width + width);
} else {
// For some reason (antialiasing?) the bounds returned by
// BasicStroke is off by one. This code works around it.
// We've had reports that this is no longer
// necessary with JDK1.3.
Rectangle2D rect = stroke.createStrokedShape(shape).getBounds2D();
return new Rectangle2D.Double(
rect.getX() - 1, rect.getY() - 1, rect.getWidth() + 2, rect.getHeight() + 2);
}
}
/**
* Calculates the bounds of the line taking stroke width into account.
*
* @return rectangle representing the bounds of the line taking stroke width into account
*/
public Rectangle2D getLineBoundsWithStroke() {
if (stroke != null) {
return stroke.createStrokedShape(lineShape).getBounds2D();
} else {
return lineShape.getBounds2D();
}
}
/**
* Returns {@code true} if the rectangle (in device space) intersects with the shape (the
* interior, if {@code onStroke} is false, otherwise the stroked outline of the shape).
*
* @param rect a rectangle (in device space).
* @param s the shape.
* @param onStroke test the stroked outline only?
* @return A boolean.
*/
@Override
public boolean hit(Rectangle rect, Shape s, boolean onStroke) {
AffineTransform transform = getTransform();
Shape ts;
if (onStroke) {
Stroke stroke = getStroke();
ts = transform.createTransformedShape(stroke.createStrokedShape(s));
} else {
ts = transform.createTransformedShape(s);
}
if (!rect.getBounds2D().intersects(ts.getBounds2D())) {
return false;
}
Area a1 = new Area(rect);
Area a2 = new Area(ts);
a1.intersect(a2);
return !a1.isEmpty();
}
/** @see Graphics2D#hit(Rectangle, Shape, boolean) */
public boolean hit(Rectangle rect, Shape s, boolean onStroke) {
if (onStroke) {
s = stroke.createStrokedShape(s);
}
s = transform.createTransformedShape(s);
Area area = new Area(s);
if (clip != null) area.intersect(clip);
return area.intersects(rect.x, rect.y, rect.width, rect.height);
}
/** Get the bounding box of this terminal. */
@Override
public Rectangle2D getBounds() {
Rectangle2D bounds = _stroke.createStrokedShape(_line).getBounds2D();
if (_end != null) {
Rectangle2D.union(bounds, _end.getBounds(), bounds);
}
return bounds;
}
/** {@inheritDoc} */
public boolean intersects(final Rectangle2D aBounds) {
if (super.intersects(aBounds)) {
if (lineShape.intersects(aBounds)) {
return true;
} else if (stroke != null && strokePaint != null) {
return stroke.createStrokedShape(lineShape).intersects(aBounds);
}
}
return false;
}
public Shape createStrokedShape(Shape shape) {
Area area1 = new Area(stroke1.createStrokedShape(shape));
Area area2 = new Area(stroke2.createStrokedShape(shape));
switch (operation) {
case ADD:
area1.add(area2);
break;
case SUBSTRACT:
area1.subtract(area2);
break;
case INTERSECT:
area1.intersect(area2);
break;
case DIFFERENCE:
area1.exclusiveOr(area2);
break;
}
return area1;
}
public Shape createStrokedShape(Shape shape) {
GeneralPath result = new GeneralPath();
PathIterator it = new FlatteningPathIterator(shape.getPathIterator(null), FLATNESS);
float points[] = new float[6];
float moveX = 0, moveY = 0;
float lastX = 0, lastY = 0;
float thisX = 0, thisY = 0;
int type = 0;
float next = 0;
int phase = 0;
while (!it.isDone()) {
type = it.currentSegment(points);
switch (type) {
case PathIterator.SEG_MOVETO:
moveX = lastX = points[0];
moveY = lastY = points[1];
result.moveTo(moveX, moveY);
next = wavelength / 2;
break;
case PathIterator.SEG_CLOSE:
points[0] = moveX;
points[1] = moveY;
// Fall into....
case PathIterator.SEG_LINETO:
thisX = points[0];
thisY = points[1];
float dx = thisX - lastX;
float dy = thisY - lastY;
float distance = (float) Math.sqrt(dx * dx + dy * dy);
if (distance >= next) {
float r = 1.0f / distance;
while (distance >= next) {
float x = lastX + next * dx * r;
float y = lastY + next * dy * r;
if ((phase & 1) == 0) result.lineTo(x + amplitude * dy * r, y - amplitude * dx * r);
else result.lineTo(x - amplitude * dy * r, y + amplitude * dx * r);
next += wavelength;
phase++;
}
}
next -= distance;
lastX = thisX;
lastY = thisY;
if (type == PathIterator.SEG_CLOSE) result.closePath();
break;
}
it.next();
}
return stroke.createStrokedShape(result);
}
/**
* Sets the current stroke. Calls writeStroke if stroke is unequal to the current stroke.
*
* @param stroke to be set
*/
public void setStroke(Stroke stroke) {
if (stroke.equals(currentStroke)) {
return;
}
try {
writeStroke(stroke);
} catch (IOException e) {
handleException(e);
}
currentStroke = stroke;
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
this.setBackground(Color.WHITE);
Graphics2D g2d = (Graphics2D) g;
RenderingHints rh =
new RenderingHints(
RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
g2d.setRenderingHints(rh);
for (int i = 0; i < strokes.size(); i++) {
Stroke currentStroke = strokes.get(i);
g2d.setPaint(currentStroke.getColor());
g2d.setStroke(new BasicStroke(currentStroke.getThickness()));
ArrayList<Point2D> currentStrokePoints = currentStroke.getPoints();
for (int j = 1; j < currentStrokePoints.size(); j++) {
g2d.drawLine(
(int) (currentStrokePoints.get(j - 1).getX() * this.getSize().getWidth()),
(int) (currentStrokePoints.get(j - 1).getY() * this.getSize().getHeight()),
(int) (currentStrokePoints.get(j).getX() * this.getSize().getWidth()),
(int) (currentStrokePoints.get(j).getY() * this.getSize().getHeight()));
}
}
}
public void setStroke(Stroke s) {
if (s != null) {
m_localGraphicsState.setStroke(s);
if (s.equals(m_psGraphicsState.getStroke())) {
return;
}
m_psGraphicsState.setStroke(s);
} else {
m_localGraphicsState.setStroke(new BasicStroke());
m_psGraphicsState.setStroke(getStroke());
}
// ouput postscript here to set stroke.
}
/** Creates the composite shape */
@Override
public Shape createStrokedShape(Shape shape) {
return stroke2.createStrokedShape(stroke1.createStrokedShape(shape));
}
private void followPath(Shape s, int drawType) {
if (s == null) return;
if (drawType == STROKE) {
if (!(stroke instanceof BasicStroke)) {
s = stroke.createStrokedShape(s);
followPath(s, FILL);
return;
}
}
if (drawType == STROKE) {
setStrokeDiff(stroke, oldStroke);
oldStroke = stroke;
setStrokePaint();
} else if (drawType == FILL) setFillPaint();
PathIterator points;
int traces = 0;
if (drawType == CLIP) points = s.getPathIterator(IDENTITY);
else points = s.getPathIterator(transform);
float[] coords = new float[6];
while (!points.isDone()) {
++traces;
int segtype = points.currentSegment(coords);
normalizeY(coords);
switch (segtype) {
case PathIterator.SEG_CLOSE:
cb.closePath();
break;
case PathIterator.SEG_CUBICTO:
cb.curveTo(coords[0], coords[1], coords[2], coords[3], coords[4], coords[5]);
break;
case PathIterator.SEG_LINETO:
cb.lineTo(coords[0], coords[1]);
break;
case PathIterator.SEG_MOVETO:
cb.moveTo(coords[0], coords[1]);
break;
case PathIterator.SEG_QUADTO:
cb.curveTo(coords[0], coords[1], coords[2], coords[3]);
break;
}
points.next();
}
switch (drawType) {
case FILL:
if (traces > 0) {
if (points.getWindingRule() == PathIterator.WIND_EVEN_ODD) cb.eoFill();
else cb.fill();
}
break;
case STROKE:
if (traces > 0) cb.stroke();
break;
default: // drawType==CLIP
if (traces == 0) cb.rectangle(0, 0, 0, 0);
if (points.getWindingRule() == PathIterator.WIND_EVEN_ODD) cb.eoClip();
else cb.clip();
cb.newPath();
}
}
