/**
* Finds a top level Figure, but supresses the passed in figure. Use this method to ignore a
* figure that is temporarily inserted into the drawing.
*
* @param x the x coordinate
* @param y the y coordinate
* @param without the figure to be ignored during the find.
*/
public Figure findFigureWithout(int x, int y, Figure without) {
if (without == null) return findFigure(x, y);
FigureEnumeration k = figuresReverse();
while (k.hasMoreElements()) {
Figure figure = k.nextFigure();
if (figure.containsPoint(x, y) && !figure.includes(without)) return figure;
}
return null;
}
private Figure findConnectableFigure(int x, int y, Drawing drawing) {
FigureEnumeration fe = drawing.figuresReverse();
while (fe.hasNextFigure()) {
Figure figure = fe.nextFigure();
if (!figure.includes(getConnection()) && figure.canConnect() && figure.containsPoint(x, y)) {
return figure;
}
}
return null;
}
/** Finds a connection end figure. */
protected Connector findConnectionTarget(int x, int y, Drawing drawing) {
Figure target = findConnectableFigure(x, y, drawing);
if ((target != null)
&& target.canConnect()
&& !target.includes(owner())
&& getConnection().canConnect(owner(), target)) {
return findConnector(x, y, target);
}
return null;
}
/** Checks if the composite figure has the argument as one of its children. */
public boolean includes(Figure figure) {
if (super.includes(figure)) return true;
FigureEnumeration k = figures();
while (k.hasMoreElements()) {
Figure f = k.nextFigure();
if (f.includes(figure)) return true;
}
return false;
}
/**
* Finds a top level Figure that intersects the given rectangle. It supresses the passed in
* figure. Use this method to ignore a figure that is temporarily inserted into the drawing.
*/
public Figure findFigure(Rectangle r, Figure without) {
if (without == null) return findFigure(r);
FigureEnumeration k = figuresReverse();
while (k.hasMoreElements()) {
Figure figure = k.nextFigure();
Rectangle fr = figure.displayBox();
if (r.intersects(fr) && !figure.includes(without)) return figure;
}
return null;
}
/** Check existance of figure in the drawing */
public boolean figureExists(Figure inf, FigureEnumeration fe) {
while (fe.hasNextFigure()) {
Figure figure = fe.nextFigure();
if (figure.includes(inf)) {
return true;
}
}
return false;
}
private Figure findConnectableFigure(int x, int y, Drawing drawing) {
FigureEnumeration k = drawing.figuresReverse();
while (k.hasMoreElements()) {
Figure figure = k.nextFigure();
if (!figure.includes(getConnection()) && figure.canConnect()) {
if (figure.containsPoint(x, y)) {
return figure;
}
}
}
return null;
}
private Connector findConnectionTarget(int x, int y, Drawing drawing) {
Figure target = findConnectableFigure(x, y, drawing);
if ((target != null)
&& target.canConnect()
&& target != fOriginalTarget
&& !target.includes(owner())
&& getConnection().canConnect(source().owner(), target)) {
return findConnector(x, y, target);
}
return null;
}
