/**
* Code to paint the WhiteboardShapeRect.
*
* @param g graphics context
* @param t 2D affine transformation
*/
public void paintShape(Graphics2D g, AffineTransform t) {
double x = point.getX();
double y = point.getY();
g.setStroke(new BasicStroke(this.getThickness(), BasicStroke.CAP_ROUND, BasicStroke.CAP_ROUND));
Point2D w0 = new Point2D.Double(x, y);
Point2D v0 = t.transform(w0, null);
int x0 = (int) v0.getX();
int y0 = (int) v0.getY();
Point2D w1 = new Point2D.Double(x + width, y + height);
Point2D v1 = t.transform(w1, null);
int xWidth = (int) v1.getX() - x0;
int yHeight = (int) v1.getY() - y0;
g.setColor(Color.getColor("", this.getColor()));
if (fill) {
g.fillRect(x0, y0, xWidth, yHeight);
} else {
g.drawRect(x0, y0, xWidth, yHeight);
}
}
/**
* WhiteboardShapeRect constructor.
*
* @param id String that uniquely identifies this WhiteboardShapeRect
* @param thickness number of pixels that this object (or its border) should be thick
* @param color WhiteboardShapeRect's color (or rather it's border)
* @param point coordinates of this object.
* @param width width value of this object (in pixel)
* @param height height value of this object (in pixel)
* @param fill True is filled, false is unfilled
* @param transform 2D affine transformation
*/
public WhiteboardShapeRect(
String id,
int thickness,
Color color,
WhiteboardPoint point,
double width,
double height,
boolean fill,
AffineTransform transform) {
super(id);
Point2D v0 = new Point2D.Double(point.getX(), point.getY());
Point2D w0 = transform.transform(v0, null);
double x = w0.getX();
double y = w0.getY();
point.setX(x);
point.setY(y);
Point2D v1 = new Point2D.Double(x + width, y + height);
Point2D w1 = transform.transform(v1, null);
double transformedWidth = w1.getX() - x;
double transformedHeight = w1.getY() - y;
this.initShape(thickness, color, point, transformedWidth, transformedHeight, fill);
}
/**
* Code to paint the specific shape
*
* @param w2v 2D affine transform
* @param g graphics context
*/
public void paintShape(Graphics2D g, AffineTransform w2v) {
double x = startPoint.getX();
double y = startPoint.getY();
double xEnd = endPoint.getX();
double yEnd = endPoint.getY();
g.setStroke(new BasicStroke(this.getThickness(), BasicStroke.CAP_ROUND, BasicStroke.CAP_ROUND));
Point2D v0 = w2v.transform(new Point2D.Double(x, y), null);
int ix = (int) v0.getX();
int iy = (int) v0.getY();
Point2D v1 = w2v.transform(new Point2D.Double(xEnd, yEnd), null);
g.drawLine(ix, iy, (int) v1.getX(), (int) v1.getY());
}
/**
* Tests if a point p is over a selection point.
*
* @param p point
* @return nearest selection point
*/
public WhiteboardPoint getSelectionPoint(Point2D p) {
WhiteboardPoint givenPoint = new WhiteboardPoint(p.getX(), p.getY());
if (startPoint.distance(givenPoint) < 10) return startPoint;
else if (endPoint.distance(givenPoint) < 10) return endPoint;
return null;
}
/**
* Tests if a point p is over a selection point.
*
* @param p point
* @return nearest selection point
*/
public WhiteboardPoint getSelectionPoint(Point2D p) {
WhiteboardPoint givenPoint = new WhiteboardPoint(p.getX(), p.getY());
for (int i = 0; i < selectionPoints.size(); i++) {
WhiteboardPoint point = (WhiteboardPoint) selectionPoints.get(i);
if (point.distance(givenPoint) < 18) return point;
}
return null;
}
/**
* Tests if the shape contains a point.
*
* @param p coord point
* @return true if shape contains p
*/
public boolean contains(Point2D p) {
double x = startPoint.getX();
double y = startPoint.getY();
double xEnd = endPoint.getX();
double yEnd = endPoint.getY();
Line2D line = new Line2D.Double(x, y, xEnd, yEnd);
return line.intersects(p.getX(), p.getY(), 10, 10);
}
/**
* WhiteboardShapeLine constructor
*
* @param id String that uniquely identifies this WhiteboardObject.
* @param t number of pixels that this object (or its border)
* @param c WhiteboardShapeLine's color (or rather it's border)
* @param startPoint the start coordinates of this line.
* @param endPoint the end coordinates of this line.
* @param v2w 2D affine transform
*/
public WhiteboardShapeLine(
String id,
int t,
Color c,
WhiteboardPoint startPoint,
WhiteboardPoint endPoint,
AffineTransform v2w) {
super(id);
this.setThickness(t);
setColor(c);
Point2D v0 = new Point2D.Double(startPoint.getX(), startPoint.getY());
Point2D w0 = v2w.transform(v0, null);
this.startPoint = new WhiteboardPoint(w0.getX(), w0.getY());
Point2D v1 = new Point2D.Double(endPoint.getX(), endPoint.getY());
Point2D w1 = v2w.transform(v1, null);
this.endPoint = new WhiteboardPoint(w1.getX(), w1.getY());
}