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.predeform;

import android.app.Activity;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.opengl.GLSurfaceView;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.SeekBar;

import android.widget.Spinner;

import android.widget.TextView;

import org.distorted.examples.R;

import org.distorted.library.main.DistortedLibrary;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.mesh.MeshBase;

import java.io.IOException;

import java.io.InputStream;

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

public class PredeformActivity2 extends Activity implements SeekBar.OnSeekBarChangeListener, AdapterView.OnItemSelectedListener

{

    private Bitmap mBitmap;

    private TextView mTextLevel;

    private DistortedTexture mTexture;

    private MeshBase mMesh;

    private int mNumRows, mNumCols, mNumSlic;

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

    @Override

    protected void onPause() 

      {

      GLSurfaceView mView = findViewById(R.id.predeformSurfaceView);

      if( mView!=null ) mView.onPause();

      DistortedLibrary.onPause();

      super.onPause();

      }

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    @Override

    protected void onResume() 

      {

      super.onResume();

      GLSurfaceView mView = findViewById(R.id.predeformSurfaceView);

      if( mView!=null ) mView.onResume();  

      }

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    @Override

    protected void onDestroy() 

      {

      DistortedLibrary.onDestroy();

      super.onDestroy();

      }

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    @Override

    protected void onCreate(Bundle savedState)

      {

      super.onCreate(savedState);

      Bundle b = getIntent().getExtras();

      int objectType = b.getInt("type");

      int bitmapID   = b.getInt("bitmap");

      mNumCols       = b.getInt("cols");

      mNumRows       = b.getInt("rows");

      mNumSlic       = b.getInt("slices");

      StringBuilder strBuilder = new StringBuilder();

      for(int i=0; i<mNumCols*mNumRows; i++) strBuilder.append('1');

      int maxsize = mNumCols > mNumRows ? (Math.max(mNumCols, mNumSlic)) : (Math.max(mNumRows, mNumSlic));

      createBitmap(maxsize,bitmapID);

      mMesh =  PredeformMeshList.createMesh(objectType, mNumCols, mNumRows, mNumSlic, bitmapID, strBuilder.toString() );

      mTexture = new DistortedTexture();

      setContentView(R.layout.predeformlayout);

      Spinner renderSpinner = findViewById(R.id.predeformSpinnerMode);

      renderSpinner.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);

      renderSpinner.setAdapter(adapterBitmap);

      mTextLevel = findViewById(R.id.predeformInflateText);

      SeekBar transparencyBar = findViewById(R.id.predeformTransparency);

      transparencyBar.setOnSeekBarChangeListener(this);

      transparencyBar.setProgress(50);

      SeekBar inflateBar = findViewById(R.id.predeformInflateLevel);

      inflateBar.setOnSeekBarChangeListener(this);

      inflateBar.setProgress(50);

      }

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    private void createBitmap(int size, int bitmapID)

      {

      if( bitmapID!=-1)

        {

        try (InputStream is = getResources().openRawResource(bitmapID))

          {

          mBitmap = BitmapFactory.decodeStream(is);

          }

        catch( IOException ex ) { android.util.Log.e("act", "failed to open resource "+bitmapID); }

        }

      else

        {

        final int T = 64;

        final int S = T*size;

        Paint paint = new Paint();

        mBitmap = Bitmap.createBitmap(S,S, Bitmap.Config.ARGB_8888);

        Canvas canvas = new Canvas(mBitmap);

        paint.setAntiAlias(true);

        paint.setTextAlign(Paint.Align.CENTER);

        paint.setColor(0xff008800);

        paint.setStyle(Paint.Style.FILL);

        canvas.drawRect(0, 0, S, S, paint);

        paint.setColor(0xffffffff);

        for(int i=0; i<=size ; i++ )

          {

          canvas.drawRect( T*i-1, 0, T*i+1, S, paint);

          canvas.drawRect( 0, T*i-1, S, T*i+1, paint);

          }

        }

      }

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    int getRows()

      {

      return mNumRows;

      }

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    int getCols()

      {

      return mNumCols;

      }

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    int getSlic()

      {

      return mNumSlic;

      }

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    public Bitmap getBitmap()

      {

      return mBitmap;

      }

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

      {

      PredeformSurfaceView v = findViewById(R.id.predeformSurfaceView);

      PredeformRenderer renderer = v.getRenderer();

      if( parent.getId()==R.id.predeformSpinnerMode)

        {

        renderer.setRenderModeToOIT(pos==1);

        }

      }

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    public void onNothingSelected(AdapterView<?> parent)

      {

      }

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

      {

      switch (bar.getId())

        {

        case R.id.predeformTransparency: PredeformSurfaceView v1 = findViewById(R.id.predeformSurfaceView);

                                         v1.getRenderer().setTransparency(progress);

                                         break;

        case R.id.predeformInflateLevel: PredeformSurfaceView v2 = findViewById(R.id.predeformSurfaceView);

                                         float level = v2.getRenderer().setLevel(progress);

                                         mTextLevel.setText(getString(R.string.inflate_placeholder, level));

                                         break;

        }

      }

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    public void onStartTrackingTouch(SeekBar bar) { }

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    public void onStopTrackingTouch(SeekBar bar)  { }

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    public DistortedTexture getTexture()

      {

      return mTexture;

      }

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

    public MeshBase getMesh()

      {

      return mMesh;

      }

}