opposite JavaFX Rectangle Corner - Java JavaFX

Java examples for JavaFX:Rectangle

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Description

opposite JavaFX Rectangle Corner

Demo Code


import javafx.event.EventTarget;
import javafx.geometry.Bounds;
import javafx.geometry.Point2D;
import javafx.scene.image.ImageView;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.Region;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.scene.shape.Rectangle;

public class Main{
    static double SLOP = 8;
    static public Point2D oppositeCorner(MouseEvent ev, Rectangle r) {
        return oppositeCorner(ev.getX(), ev.getY(), r);
    }//from www.java  2  s. co m
    static public Point2D oppositeCorner(Point2D pt, Rectangle r) {
        return oppositeCorner(pt.getX(), pt.getY(), r);
    }
    static public Point2D oppositeCorner(Point2D pt, StackPane r) {
        return oppositeCorner(pt.getX(), pt.getY(), r.getBoundsInLocal());
    }
    static public Point2D oppositeCorner(Point2D pt, Bounds r) {
        return oppositeCorner(pt.getX(), pt.getY(), r);
    }
    static public Point2D oppositeCorner(double inX, double inY, Rectangle r) {
        double outX = -1, outY = -1;
        double x = inX;
        double y = inY;
        double left = r.getX();
        double right = left + r.getWidth();
        double top = r.getY();
        double bottom = top + r.getHeight();
        if (Math.abs(x - left) < SLOP)
            outX = right;
        else if (Math.abs(x - right) < SLOP)
            outX = left;
        else
            return null;

        if (Math.abs(y - top) < SLOP)
            outY = bottom;
        else if (Math.abs(y - bottom) < SLOP)
            outY = top;
        else
            return null;

        return new Point2D(outX, outY);
    }
    static public Point2D oppositeCorner(double inX, double inY, Bounds r) {
        double outX = -1, outY = -1;
        double x = inX;
        double y = inY;
        double left = r.getMinX();
        double right = left + r.getWidth();
        double top = r.getMinY();
        double bottom = top + r.getHeight();
        if (Math.abs(x - left) < SLOP)
            outX = right;
        else if (Math.abs(x - right) < SLOP)
            outX = left;
        else
            return null;

        if (Math.abs(y - top) < SLOP)
            outY = bottom;
        else if (Math.abs(y - bottom) < SLOP)
            outY = top;
        else
            return null;

        return new Point2D(outX, outY);
    }
    static public Point2D oppositeCorner(MouseEvent ev) {
        if (ev == null)
            return null;
        EventTarget target = ev.getTarget();
        if (target instanceof Rectangle)
            return RectangleUtil.oppositeCorner(ev.getX(), ev.getY(),
                    (Rectangle) target);
        if (ev.getTarget() instanceof StackPane)
            return RectangleUtil.oppositeCorner(ev.getX(), ev.getY(),
                    ((StackPane) target).getBoundsInLocal());
        if (ev.getTarget() instanceof VBox)
            return RectangleUtil.oppositeCorner(ev.getX(), ev.getY(),
                    ((VBox) target).getBoundsInLocal());

        return null;
    }
}

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