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/*
 * Copyright (C) 2014 Dmitry Ovchinnikov
 * Marid, the free data acquisition and visualization software
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 */

package org.marid.swing.adapters;

import java.awt.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;

/**
 * @author Dmitry Ovchinnikov.
 */
public class ComponentDragger implements MouseMotionListener {

    private final Component target;
    private int cx, cy;
    private int x, y;

    public ComponentDragger(Component target) {
        this.target = target;
    }

    @Override
    public void mouseDragged(MouseEvent e) {
        target.setLocation(cx + e.getXOnScreen() - x, cy + e.getYOnScreen() - y);
        target.getParent().revalidate();
    }

    @Override
    public void mouseMoved(MouseEvent e) {
        x = e.getXOnScreen();
        y = e.getYOnScreen();
        cx = target.getX();
        cy = target.getY();
    }
}