/* 
 
Copyright 2006 Rene Grothmann, modified by Eric Hakenholz

This file is part of C.a.R. software.

    C.a.R. is a 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, version 3 of the License.

    C.a.R. 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, see <http://www.gnu.org/licenses/>.
 
 */
 
 
 package rene.zirkel.tools;

import java.awt.event.MouseEvent;
import java.util.Enumeration;

import rene.util.MyVector;
import rene.util.xml.XmlWriter;
import rene.gui.Global;
import rene.zirkel.ZirkelCanvas;
import rene.zirkel.constructors.ObjectConstructor;
import rene.zirkel.objects.ConstructionObject;

public class BreakpointAnimator extends ObjectConstructor implements Runnable {
	MyVector Breaks; // Vector of breakpoints
	ZirkelCanvas ZC;
	boolean Loop = false;

	public BreakpointAnimator() {
		Breaks = new MyVector();
	}

	@Override
	public void mousePressed(final MouseEvent e, final ZirkelCanvas zc) {
		zc.y(e.getY());
		ZC = zc;
		if (Running) {
			if (e.isShiftDown())
				Loop = !Loop;
			else {
				Stopped = true;
				zc.paintUntil(null);
			}
		} else {
			reset(zc);
		}
	}

	@Override
	public synchronized void reset(final ZirkelCanvas zc) {
		super.reset(zc);
		ZC = zc;
		showStatus(zc);
		if (Running) {
			Stopped = true;
			zc.paintUntil(null);
		} else {
			Stopped = false;
			new Thread(this).start();
		}
	}

	@Override
	public void showStatus(final ZirkelCanvas zc) {
		zc.showStatus(Global.name("message.animatebreak"));
	}

	public void save(final XmlWriter xml) {
		xml.startTagStart("AnimateBreakpoints");
		xml.printArg("time", "" + SleepTime);
		if (Loop)
			xml.printArg("loop", "true");
		xml.finishTagNewLine();
	}

	boolean Running = false, Stopped = false;
	long SleepTime = 1024;

	public void run() {
		ZC.getConstruction().setOriginalOrder(true);
		Running = true;
		Breaks = new MyVector();
		final Enumeration e = ZC.getConstruction().elements();
		while (e.hasMoreElements()) {
			final ConstructionObject o = (ConstructionObject) e.nextElement();
			if (o.isBreak())
				Breaks.addElement(o);
		}
		final Object H[] = Breaks.getArray();
		int N = 0;
		if (Breaks.size() == 0) {
			Running = false;
			ZC.getConstruction().setOriginalOrder(false);
			return;
		}
		ConstructionObject O = (ConstructionObject) H[0];
		boolean forward = true;
		while (!Stopped) {
			if (!Stopped)
				ZC.paintUntil(O);
			try {
				Thread.sleep(SleepTime);
			} catch (final Exception ex) {
			}
			if (Stopped)
				break;
			if (Loop) {
				if (forward) {
					if (N < Breaks.size() - 1) {
						N++;
						O = (ConstructionObject) H[N];
					} else if (N == Breaks.size() - 1) {
						N++;
						forward = false;
						O = null;
					}
				} else {
					if (N > 0) {
						N--;
						O = (ConstructionObject) H[N];
					} else {
						N = 1;
						O = (ConstructionObject) H[N];
						forward = true;
					}
				}
			} else {
				if (N < Breaks.size() - 1) {
					N++;
					O = (ConstructionObject) H[N];
				} else if (N == Breaks.size() - 1) {
					N++;
					O = null;
				} else {
					N = 0;
					O = (ConstructionObject) H[N];
				}
			}
		}
		Running = false;
		ZC.getConstruction().setOriginalOrder(false);
	}

	@Override
	public synchronized void invalidate(final ZirkelCanvas zc) {
		Stopped = true;
		ZC.paintUntil(null);
	}

	@Override
	public boolean useSmartBoard() {
		return false;
	}

	public void increaseSpeed() {
		if (SleepTime >= 32000)
			return;
		SleepTime = SleepTime * 2;
	}

	public void decreaseSpeed() {
		if (SleepTime == 1)
			return;
		SleepTime = SleepTime / 2;
	}

	public void setSpeed(final long delay) {
		SleepTime = delay;
	}

	public void setLoop(final boolean flag) {
		Loop = flag;
	}
}