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.cubes;

import org.distorted.library.main.Distorted;

import org.distorted.examples.R;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.mesh.MeshBase;

import org.distorted.library.mesh.MeshCubes;

import android.app.Activity;

import android.opengl.GLSurfaceView;

import android.os.Bundle;

import android.view.Gravity;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.LinearLayout;

import android.widget.NumberPicker;

import android.widget.NumberPicker.OnValueChangeListener;

import android.widget.SeekBar;

import android.widget.Spinner;

import android.widget.TableRow;

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

public class CubesActivity extends Activity implements View.OnClickListener, SeekBar.OnSeekBarChangeListener, AdapterView.OnItemSelectedListener

{

    private static final int COLOR_OFF = 0xffffe81f;

    private static final int COLOR_ON  = 0xff0000ff;

    private int mNumCols = 3;

    private int mNumRows = 3;

    private int mNumSlic = 1;

    private NumberPicker mColsPicker, mRowsPicker, mSlicPicker;

    private LinearLayout mLay;

    private boolean[] mShape;

    private DistortedTexture mTexture;

    private MeshBase mMesh;

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

    @Override

    protected void onCreate(Bundle savedState) 

      {

      super.onCreate(savedState);

      setContentView(R.layout.cubespickerlayout);

      mLay = findViewById(R.id.cubespicker_buttongrid);

      mColsPicker = findViewById(R.id.cubespicker_cols);

      mRowsPicker = findViewById(R.id.cubespicker_rows);

      mSlicPicker = findViewById(R.id.cubespicker_slices);

      mColsPicker.setMaxValue(40);

      mColsPicker.setMinValue( 0);

      mRowsPicker.setMaxValue(40);

      mRowsPicker.setMinValue( 0);

      mSlicPicker.setMaxValue(40);

      mSlicPicker.setMinValue( 0);

      mColsPicker.setOnValueChangedListener(new OnValueChangeListener() 

         {

         @Override

         public void onValueChange(NumberPicker picker, int oldVal, int newVal) 

           { 

           setGrid();

           }

         });

      mRowsPicker.setOnValueChangedListener(new OnValueChangeListener() 

         {

         @Override

         public void onValueChange(NumberPicker picker, int oldVal, int newVal) 

           { 

           setGrid();

           }

         });

      mSlicPicker.setOnValueChangedListener(new OnValueChangeListener()

         {

         @Override

         public void onValueChange(NumberPicker picker, int oldVal, int newVal)

           {

           mNumSlic = mSlicPicker.getValue();

           }

         });

      }

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

    private void setGrid()

      {

      mNumCols = mColsPicker.getValue();

      mNumRows = mRowsPicker.getValue();

      int width = mLay.getWidth();

      int height= mLay.getHeight();

      int w = mNumCols>0 ? (int)( 0.9f*width / mNumCols) : 0;

      int h = mNumRows>0 ? (int)( 0.9f*height/ mNumRows) : 0;

      int size= w<h ? w:h;

      int pad = size<20 ? 1 : size/20;

      mLay.removeAllViews();

      mShape = new boolean[mNumRows*mNumCols];

      TableRow.LayoutParams p = new android.widget.TableRow.LayoutParams();

      p.rightMargin  = pad;

      p.leftMargin   = pad;

      p.topMargin    = pad;

      p.bottomMargin = pad;

      p.height       = size;

      p.width        = size;

      for (int rows=0; rows<mNumRows; rows++) 

        {

        TableRow tr = new TableRow(this);

        tr.setGravity(Gravity.CENTER);

        for(int cols=0; cols<mNumCols; cols++) 

          {

          Button b = new Button(this);

          b.setOnClickListener(this);

          b.setId(rows*mNumCols+cols);

          b.setLayoutParams(p);          

          b.setBackgroundColor(COLOR_ON);

          tr.addView(b, p);

          mShape[rows*mNumCols+cols] = true;

          }

        mLay.addView(tr);

        }

      }

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

    public void onClick(View view) 

      {

      Button tmp = (Button)view;  

      int id = tmp.getId();

      mShape[id] = !mShape[id];

      tmp.setBackgroundColor(mShape[id] ? COLOR_ON:COLOR_OFF);

      }

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

    @Override

    public void onWindowFocusChanged(boolean hasFocus) 

      {

      super.onWindowFocusChanged(hasFocus);

      mColsPicker.setValue(mNumCols);

      mRowsPicker.setValue(mNumRows);

      mSlicPicker.setValue(mNumSlic);

      if( hasFocus ) setGrid();

      }

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

    @Override

    protected void onPause() 

      {

      GLSurfaceView mView = this.findViewById(R.id.cubesSurfaceView);

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

      Distorted.onPause();

      super.onPause();

      }

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

    @Override

    protected void onResume() 

      {

      super.onResume();

      GLSurfaceView mView = this.findViewById(R.id.cubesSurfaceView);

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

      }

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

    @Override

    protected void onDestroy() 

      {

      Distorted.onDestroy();  

      super.onDestroy();

      }

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

    public void Create(View v)

      {

      String str = "";

      for(int i=0; i<mNumRows*mNumCols; i++)

        str += mShape[i] ? "1" : "0";

      mMesh = new MeshCubes(mNumCols, str, mNumSlic);

      mTexture = new DistortedTexture(mNumCols,mNumRows);

      setContentView(R.layout.cubeslayout);

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

      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);

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

      transparencyBar.setOnSeekBarChangeListener(this);

      CubesSurfaceView view = this.findViewById(R.id.cubesSurfaceView);

      view.getRenderer().setTransparency(50);

      transparencyBar.setProgress(50);

      }

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

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

      {

      CubesSurfaceView v = this.findViewById(R.id.cubesSurfaceView);

      CubesRenderer renderer = v.getRenderer();

      switch(parent.getId())

        {

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

                                     break;

        }

      }

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

    public void onNothingSelected(AdapterView<?> parent)

      {

      }

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

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

      {

      switch (bar.getId())

        {

        case R.id.cubesTransparency: CubesSurfaceView view = this.findViewById(R.id.cubesSurfaceView);

                                     view.getRenderer().setTransparency(progress);

                                     break;

        }

      }

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

    public void onStartTrackingTouch(SeekBar bar) { }

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

    public void onStopTrackingTouch(SeekBar bar)  { }

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

    public DistortedTexture getTexture()

      {

      return mTexture;

      }

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

    public MeshBase getMesh()

      {

      return mMesh;

      }

}