InteractiveElement.java

// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.plugins.turnlanes.gui;

import java.awt.Graphics2D;
import java.awt.geom.Point2D;

abstract class InteractiveElement {
    interface Type {
        Type INCOMING_CONNECTOR = new Type() {};
        Type OUTGOING_CONNECTOR = new Type() {};
        Type TURN_CONNECTION = new Type() {};
        Type LANE_ADDER = new Type() {};
        Type EXTENDER = new Type() {};
        Type VIA_CONNECTOR = new Type() {};
    }

    public void paintBackground(Graphics2D g2d, State state) {}

    abstract void paint(Graphics2D g2d, State state);

    abstract boolean contains(Point2D p, State state);

    abstract Type getType();

    State activate(State old) {
        return old;
    }

    boolean beginDrag(double x, double y) {
        return false;
    }

    State drag(double x, double y, InteractiveElement target, State old) {
        return old;
    }

    State drop(double x, double y, InteractiveElement target, State old) {
        return old;
    }

    abstract int getZIndex();

    State click(State old) {
        return old;
    }
}