/**
* Method to get the coordinates of the enclosing rectangle after this transformation is applied
* to the current picture
*
* @return the enclosing rectangle
*/
public Rectangle2D getTransformEnclosingRect(AffineTransform trans) {
int width = getWidth();
int height = getHeight();
double maxX = width - 1;
double maxY = height - 1;
double minX, minY;
Point2D.Double p1 = new Point2D.Double(0, 0);
Point2D.Double p2 = new Point2D.Double(maxX, 0);
Point2D.Double p3 = new Point2D.Double(maxX, maxY);
Point2D.Double p4 = new Point2D.Double(0, maxY);
Point2D.Double result = new Point2D.Double(0, 0);
Rectangle2D.Double rect = null;
// get the new points and min x and y and max x and y
trans.deltaTransform(p1, result);
minX = result.getX();
maxX = result.getX();
minY = result.getY();
maxY = result.getY();
trans.deltaTransform(p2, result);
minX = Math.min(minX, result.getX());
maxX = Math.max(maxX, result.getX());
minY = Math.min(minY, result.getY());
maxY = Math.max(maxY, result.getY());
trans.deltaTransform(p3, result);
minX = Math.min(minX, result.getX());
maxX = Math.max(maxX, result.getX());
minY = Math.min(minY, result.getY());
maxY = Math.max(maxY, result.getY());
trans.deltaTransform(p4, result);
minX = Math.min(minX, result.getX());
maxX = Math.max(maxX, result.getX());
minY = Math.min(minY, result.getY());
maxY = Math.max(maxY, result.getY());
// create the bounding rectangle to return
rect = new Rectangle2D.Double(minX, minY, maxX - minX + 1, maxY - minY + 1);
return rect;
}
