Distorted Android

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// 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/>.                            //

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package org.distorted.examples.transparency;

import android.app.Activity;

import android.opengl.GLSurfaceView;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.CheckBox;

import android.widget.SeekBar;

import android.widget.Spinner;

import org.distorted.examples.R;

import org.distorted.library.main.DistortedLibrary;

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public class TransparencyActivity extends Activity implements SeekBar.OnSeekBarChangeListener, AdapterView.OnItemSelectedListener

{

    private int mRenderFirst;

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    @Override

    protected void onCreate(Bundle savedState) 

      {

      super.onCreate(savedState);

      DistortedLibrary.onCreate();

      setContentView(R.layout.transparencylayout);

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

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

      barRed.setOnSeekBarChangeListener(this);

      barYellow.setOnSeekBarChangeListener(this);

      if( savedState==null )

        {

        barRed.setProgress(50);

        barYellow.setProgress(50);

        privateRenderFirst(0);

        }

      Spinner typeSpinner  = findViewById(R.id.transparency_spinnerFirst);

      typeSpinner.setOnItemSelectedListener(this);

      String[] objectType = new String[] {"First: Red", "First: Yellow"};

      ArrayAdapter<String> adapterType = new ArrayAdapter<>(this, android.R.layout.simple_spinner_item, objectType);

      adapterType.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

      typeSpinner.setAdapter(adapterType);

      Spinner bitmapSpinner  = findViewById(R.id.transparency_spinnerMode);

      bitmapSpinner.setOnItemSelectedListener(this);

      String[] objectBitmap = new String[] { "Render: Normal", "Render: OIT" };

      ArrayAdapter<String> adapterBitmap = new ArrayAdapter<>(this, android.R.layout.simple_spinner_item, objectBitmap);

      adapterBitmap.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

      bitmapSpinner.setAdapter(adapterBitmap);

      }

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  public void onItemSelected(AdapterView<?> parent, View view, int pos, long id)

    {

    switch(parent.getId())

      {

      case R.id.transparency_spinnerFirst  : privateRenderFirst(pos);

                                             break;

      case R.id.transparency_spinnerMode   : setRenderModeToOIT(pos==1);

                                             break;

      }

    }

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  public void onNothingSelected(AdapterView<?> parent)

    {

    }

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    @Override

    protected void onPause() 

      {

      super.onPause();

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

      view.onPause();

      DistortedLibrary.onPause();

      }

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    @Override

    protected void onResume() 

      {

      super.onResume();

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

      view.onResume();

      }

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    @Override

    protected void onDestroy() 

      {

      DistortedLibrary.onDestroy();

      super.onDestroy();

      }

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    @Override

    public void onSaveInstanceState(Bundle savedInstanceState)

      {

      super.onSaveInstanceState(savedInstanceState);

      savedInstanceState.putInt("render", mRenderFirst);

      }

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    @Override

    public void onRestoreInstanceState(Bundle savedInstanceState)

      {

      super.onRestoreInstanceState(savedInstanceState);

      mRenderFirst= savedInstanceState.getInt("render");

      privateRenderFirst(mRenderFirst);

      }

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

      {

      switch (bar.getId())

        {

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

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

                                          break;

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

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

                                          break;

        }

      }

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    public void onStartTrackingTouch(SeekBar bar) { }

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    public void onStopTrackingTouch(SeekBar bar)  { }

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    private void setRenderModeToOIT(boolean oit)

      {

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

      TransparencyRenderer renderer= view.getRenderer();

      renderer.setRenderModeToOIT(oit);

      }

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    private void privateRenderFirst(int index)

      {

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

      TransparencyRenderer renderer= view.getRenderer();

      renderer.setRenderFirst(index);

      mRenderFirst = index;

      }

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    public void onClick(View view)

      {

      CheckBox box = (CheckBox)view;

      boolean checked = box.isChecked();

      TransparencySurfaceView sView = findViewById(R.id.transparencySurfaceView);

      switch(box.getId())

        {

        case R.id.transparencyCheckBox0  : sView.getRenderer().setPostprocess(0,checked); break;

        case R.id.transparencyCheckBox1  : sView.getRenderer().setPostprocess(1,checked); break;

        }

      }

}