package org.jzy3d.chart.controllers.mouse.picking;

import org.jzy3d.chart.Chart;
import org.jzy3d.chart.controllers.ControllerType;
import org.jzy3d.chart.controllers.mouse.NewtMouseUtilities;
import org.jzy3d.maths.BoundingBox3d;
import org.jzy3d.maths.Coord2d;
import org.jzy3d.maths.Coord3d;
import org.jzy3d.plot3d.rendering.view.View;

import com.jogamp.newt.event.MouseEvent;

public class NewtMousePickingPan2dController extends NewtMousePickingController {

	public NewtMousePickingPan2dController() {
		super();
	}

	public NewtMousePickingPan2dController(Chart chart) {
		super(chart);
	}

	public NewtMousePickingPan2dController(Chart chart, int brushSize) {
		super(chart, brushSize);
	}

	public NewtMousePickingPan2dController(Chart chart, int brushSize, int bufferSize) {
		super(chart, brushSize, bufferSize);
	}

	/**
	 * *************
	 */
	@Override
    public void mouseDragged(MouseEvent e) {
		int yflip = -e.getY() + targets.get(0).getCanvas().getRendererHeight();
		Coord2d mouse = new Coord2d(e.getX(), yflip);
		View view = targets.get(0).getView();
		Coord3d thisMouse3d = view.projectMouse(e.getX(), yflip);

		// 1/2 pan for cleaner rendering
		if (!done) {
			pan(prevMouse3d, thisMouse3d);
			done = true;
		} else {
			done = false;
		}
		prevMouse = mouse;
		prevMouse3d = thisMouse3d;
	}
	protected boolean done;

	@Override
    public void mouseWheelMoved(MouseEvent e) {
		lastInc = NewtMouseUtilities.convertWheelRotation(e, 0.0f, 10.0f);
		factor = factor + lastInc;

		View view = targets.get(0).getView();
		mouse3d = view.projectMouse(lastMouseX, lastMouseY);

		zoom(1 + lastInc);
	}

	/**
	 * *******************
	 */
	protected void zoom(final float factor) {
		Chart chart = targets.get(0);
		BoundingBox3d viewBounds = chart.getView().getBounds();
		BoundingBox3d newBounds = viewBounds.scale(new Coord3d(factor, factor, 1));
		chart.getView().setBoundManual(newBounds);
		chart.getView().shoot();

		fireControllerEvent(ControllerType.ZOOM, factor);
	}

	protected void pan(Coord3d from, Coord3d to) {
		Chart chart = targets.get(0);

		BoundingBox3d viewBounds = chart.getView().getBounds();
		Coord3d offset = to.sub(from).div(-PAN_FACTOR);
		BoundingBox3d newBounds = viewBounds.shift(offset);
		chart.getView().setBoundManual(newBounds);
		chart.getView().shoot();

		fireControllerEvent(ControllerType.PAN, offset);
	}

	protected static float PAN_FACTOR = 0.25f;

	protected int lastMouseX = 0;
	protected int lastMouseY = 0;

	/**
	 * *******************
	 */
}