Distorted Android

///////////////////////////////////////////////////////////////////////////////////////////////////

// Copyright 2016 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Distorted.                                                               //

//                                                                                               //

// Distorted 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.                                                           //

//                                                                                               //

// Distorted 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 Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //

///////////////////////////////////////////////////////////////////////////////////////////////////

package org.distorted.examples.transparency;

import android.app.Activity;

import android.opengl.GLSurfaceView;

import android.os.Bundle;

import android.view.View;

import android.widget.SeekBar;

import org.distorted.examples.R;

import org.distorted.library.main.Distorted;

///////////////////////////////////////////////////////////////////////////////////////////////////

public class TransparencyActivity extends Activity implements SeekBar.OnSeekBarChangeListener

{

    private int mRenderFirst;

///////////////////////////////////////////////////////////////////////////////////////////////////

    @Override

    protected void onCreate(Bundle savedState) 

      {

      super.onCreate(savedState);

      setContentView(R.layout.transparencylayout);

      SeekBar barRed    = (SeekBar)findViewById(R.id.transparencySeekRed);

      SeekBar barYellow = (SeekBar)findViewById(R.id.transparencySeekYellow);

      barRed.setOnSeekBarChangeListener(this);

      barYellow.setOnSeekBarChangeListener(this);

      if( savedState==null )

        {

        barRed.setProgress(50);

        barYellow.setProgress(50);

        privateRenderFirst(0);

        }

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    @Override

    protected void onPause() 

      {

      GLSurfaceView view = (GLSurfaceView) this.findViewById(R.id.transparencySurfaceView);

      view.onPause();

      Distorted.onPause();

      super.onPause();

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    @Override

    protected void onResume() 

      {

      super.onResume();

      GLSurfaceView view = (GLSurfaceView) this.findViewById(R.id.transparencySurfaceView);

      view.onResume();

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    @Override

    protected void onDestroy() 

      {

      Distorted.onDestroy();  

      super.onDestroy();

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    @Override

    public void onSaveInstanceState(Bundle savedInstanceState)

      {

      super.onSaveInstanceState(savedInstanceState);

      savedInstanceState.putInt("render", mRenderFirst);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    @Override

    public void onRestoreInstanceState(Bundle savedInstanceState)

      {

      super.onRestoreInstanceState(savedInstanceState);

      mRenderFirst= savedInstanceState.getInt("render");

      privateRenderFirst(mRenderFirst);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public void onProgressChanged(SeekBar bar, int progress, boolean fromUser)

      {

      switch (bar.getId())

        {

        case R.id.transparencySeekRed:    TransparencySurfaceView view0 = (TransparencySurfaceView) this.findViewById(R.id.transparencySurfaceView);

                                          view0.getRenderer().setTransparency(0, (float)progress/100 );

                                          break;

        case R.id.transparencySeekYellow: TransparencySurfaceView view1 = (TransparencySurfaceView) this.findViewById(R.id.transparencySurfaceView);

                                          view1.getRenderer().setTransparency(1, (float)progress/100 );

                                          break;

        }

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public void onStartTrackingTouch(SeekBar bar) { }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public void onStopTrackingTouch(SeekBar bar)  { }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public void renderFirst(View v)

      {

      switch(v.getId())

        {

        case R.id.transparencyRed   : privateRenderFirst(0); break;

        case R.id.transparencyYellow: privateRenderFirst(1); break;

        }

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    private void privateRenderFirst(int index)

      {

      TransparencySurfaceView view = (TransparencySurfaceView) this.findViewById(R.id.transparencySurfaceView);

      TransparencyRenderer renderer= view.getRenderer();

      renderer.setRenderFirst(index);

      mRenderFirst = index;

      }

}