/*******************************************************************************
 * Breakout Cave Survey Visualizer
 *
 * Copyright (C) 2014 James Edwards
 *
 * jedwards8 at fastmail dot fm
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 2 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 General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *******************************************************************************/
package com.andork.plot;

import java.awt.Component;
import java.awt.Point;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;

import javax.swing.SwingUtilities;

import org.andork.swing.event.MouseEventFaker;

import com.andork.plot.PlotAxis.Orientation;

public class PlotController extends MouseAdapter {
	private Component view;
	private PlotAxisController haxis;
	private PlotAxisController vaxis;

	public PlotController(Component view, PlotAxisController haxis, PlotAxisController vaxis) {
		super();
		this.view = view;
		this.haxis = haxis;
		this.vaxis = vaxis;
	}

	private MouseEvent convertForAxis(MouseEvent e, PlotAxis axis) {
		Point p = SwingUtilities.convertPoint(e.getComponent(), e.getPoint(), axis);
		if (axis.getOrientation() == Orientation.HORIZONTAL) {
			p.y = axis.getHeight() / 2;
		} else {
			p.x = axis.getWidth() / 2;
		}

		if (e instanceof MouseWheelEvent) {
			MouseWheelEvent we = (MouseWheelEvent) e;
			return new MouseWheelEvent(axis, e.getID(), e.getWhen(), e.getModifiers(), p.x, p.y, e.getClickCount(),
					e.isPopupTrigger(), we.getScrollType(), we.getScrollAmount(), we.getWheelRotation());
		} else {
			int xAbs = e.getXOnScreen() + p.x - e.getX();
			int yAbs = e.getYOnScreen() + p.y - e.getY();
			return new MouseEvent(axis, e.getID(), e.getWhen(), e.getModifiers(), p.x, p.y, xAbs, yAbs,
					e.getClickCount(), e.isPopupTrigger(), e.getButton());
		}
	}

	@Override
	public void mouseDragged(MouseEvent e) {
		retarget(e);
	}

	@Override
	public void mousePressed(MouseEvent e) {
		retarget(e);
	}

	@Override
	public void mouseReleased(MouseEvent e) {
		retarget(e);
	}

	@Override
	public void mouseWheelMoved(MouseWheelEvent e) {
		retarget(e);
	}

	private void retarget(MouseEvent e) {
		if (haxis != null) {
			retarget(e, haxis);
		}
		if (vaxis != null) {
			retarget(e, vaxis);
		}
	}

	private void retarget(MouseEvent e, PlotAxisController axis) {
		boolean enableZoom = axis.isEnableZoom();
		if (e instanceof MouseWheelEvent) {
			axis.setEnableZoom(true);
		}
		MouseEventFaker.dispatch(convertForAxis(e, axis.getView()), axis.getMouseHandler());
		axis.setEnableZoom(enableZoom);
	}
}