Arvos.java

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/*
 Copyright (C) 2013, Peter Graf

   This file is part of Arvos - AR Viewer Open Source for Android.
   Arvos is free software.

    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 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 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/>.
    
   For more information on the AR Viewer Open Source or Peter Graf,
   please see: http://www.mission-base.com/.
 */

package com.mission_base.arviewer_android;

import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Intent;
import android.hardware.SensorManager;
import android.view.OrientationEventListener;

import com.mission_base.arviewer_android.viewer.Augment;
import com.mission_base.arviewer_android.viewer.WebViewer;
import com.mission_base.arviewer_android.viewer.opengl.ArvosObject;

@SuppressLint("UseSparseArrays")
public class Arvos
{
    public boolean mSimulateWeb = true;

    public boolean mUseCache = true;
    public boolean mIsAuthor = false;
    public String mAuthorKey;
    public String mDeveloperKey;

    private static String mLock = "Lock";
    private static Arvos mInstance = null;

    private Activity mActivity;
    private OrientationEventListener mListener;
    private int mOrientation = 0;

    public String mSessionId;
    public float mLongitude = -1000f;
    public float mLatitude = -1000f;
    public int mVersion = 1;

    public Augment mAugment;
    public String mAugmentsUrl = "http://www.mission-base.com/arvos/augments.json";

    public float mAzimuth = 0;
    public float mCorrectedAzimuth = 0;
    public float mPitch = 0;
    public float mRoll = 0;
    public long mFPS = 0;

    public int mWidth;
    public int mHeight;
    public volatile boolean mHandleTouch = false;
    public volatile boolean mModelViewMatrixesRequested = false;

    public float[] mProjectionMatrix = null;

    public final HashMap<Integer, float[]> mModelViewMatrixes = new HashMap<Integer, float[]>();

    public final List<ArvosObject> mArvosObjects = Collections.synchronizedList(new LinkedList<ArvosObject>());

    private Arvos()
    {
    }

    public static Arvos getInstance()
    {
        if (mInstance == null)
        {
            synchronized (mLock)
            {
                if (mInstance == null)
                {
                    mInstance = new Arvos();
                }
            }
        }
        return mInstance;
    }

    public static Arvos getInstance(Activity activity)
    {
        getInstance();
        if (activity != null)
        {
            mInstance.setActivity(activity);
        }
        return mInstance;
    }

    public Activity getActivity()
    {
        return mActivity;
    }

    private void setActivity(Activity activity)
    {
        mActivity = activity;
        if (mActivity != null && mListener == null)
        {
            mListener = new OrientationEventListener(mActivity, SensorManager.SENSOR_DELAY_UI)
            {
                public void onOrientationChanged(int orientation)
                {
                    if (orientation == ORIENTATION_UNKNOWN)
                    {
                        mOrientation = 0;
                    }
                    else
                    {
                        mOrientation = orientation;
                    }
                }
            };
        }
    }

    public int getOrientation()
    {
        return mOrientation;
    }

    public int getRotationDegrees()
    {
        int degrees = 0;
        if (mOrientation < 45)
        {
            degrees = 0;
        }
        else if (mOrientation < 135)
        {
            degrees = 270;
        }
        else if (mOrientation < 225)
        {
            degrees = 180;
        }
        else if (mOrientation < 315)
        {
            degrees = 90;
        }
        return degrees;
    }

    public void onResume()
    {
        mListener.enable();
    }

    public void onPause()
    {
        mListener.disable();
    }

    private static float toDegreesFactor = 180 / 3.14159f;

    public static float toDegrees(float radians)
    {
        return radians * toDegreesFactor;
    }

    private static String mMessage;

    public static void log(String tag, String message)
    {
        mMessage = tag + "" + message;
        getInstance().mActivity.runOnUiThread(new Runnable()
        {
            public void run()
            {
                getInstance().mActivity.getActionBar().setSubtitle(mMessage);
            }
        });
    }

    public void startWebViewer(String url)
    {
        new ArvosRunnable(url).run();
    }

    private class ArvosRunnable extends Thread
    {
        private String mUrl;

        public ArvosRunnable(String url)
        {
            mUrl = url;
        }

        public void run()
        {
            Intent intent = new Intent(Arvos.getInstance().mActivity, WebViewer.class);
            intent.putExtra("url", mUrl);

            Arvos.getInstance().mActivity.startActivity(intent);
        }
    }
}