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.fragment3d;

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.SeekBar;

import android.widget.SeekBar.OnSeekBarChangeListener;

import android.widget.Spinner;

import android.widget.TableRow;

import android.widget.TextView;

import org.distorted.examples.R;

import org.distorted.library.Distorted;

import org.distorted.library.DistortedBitmap;

import org.distorted.library.DistortedCubes;

import org.distorted.library.DistortedObject;

import org.distorted.library.EffectNames;

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

public class Fragment3DActivity extends Activity

                                implements OnSeekBarChangeListener,

                                           View.OnClickListener,

                                           AdapterView.OnItemSelectedListener

  {

  private static final int COLOR_OFF = 0xffffe81f;

  private static final int COLOR_ON  = 0xff0000ff;

  private boolean firstScreen;

  // fields needed for the first 'pick-a-shape' screen

  //

  private int mNumCols = 3;

  private int mNumRows = 3;

  private NumberPicker mColsPicker, mRowsPicker;

  private LinearLayout mLay;

  private boolean[] mShape;

  private DistortedObject mObject;

  private int mObjectType;

  private int mBitmap;

  // fields needed for the second 'apply fragment effects' screen

  //

  private SeekBar bar;

  private TextView textChroma, textAlpha, textBrightness, textSaturation, textCenter;

  private int chromaL, chromaR, chromaG, chromaB;

  private int alphaL;

  private int brightnessL;

  private int saturationL;

  private int centerX, centerY;

  private float fchromaL, fchromaR, fchromaG, fchromaB;

  private float falphaL;

  private float fbrightnessL;

  private float fsaturationL;

  private float fcenterX, fcenterY;

  private EffectNames[] effects = new EffectNames[4];

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

  @Override

  protected void onCreate(Bundle savedState)

    {

    super.onCreate(savedState);

    setContentView(R.layout.objectpickerlayout);

    mColsPicker = (NumberPicker)findViewById(R.id.objectpicker_cols);

    mRowsPicker = (NumberPicker)findViewById(R.id.objectpicker_rows);

    mColsPicker.setMaxValue(10);

    mColsPicker.setMinValue( 0);

    mRowsPicker.setMaxValue(10);

    mRowsPicker.setMinValue( 0);

    mColsPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener()

      {

      @Override

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

        {

        mNumCols = mColsPicker.getValue();

        }

      });

    mRowsPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener()

      {

      @Override

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

        {

        mNumRows = mRowsPicker.getValue();

        }

      });

    firstScreen = true;

    mObjectType = 0;

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

    typeSpinner.setOnItemSelectedListener(this);

    String[] objectType = new String[] {"DistortedCubes", "DistortedBitmap"};

    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  = (Spinner)findViewById(R.id.objectpicker_spinnerBitmap);

    bitmapSpinner.setOnItemSelectedListener(this);

    String[] objectBitmap = new String[] {"Girl", "Dog", "Cat", "Grid"};

    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);

    }

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

  private void setGrid()

    {

    mLay = (LinearLayout)findViewById(R.id.objectpicker_buttongrid);

    int width = mLay.getWidth();

    int height= mLay.getHeight();

    int w = mNumCols>0 ? (width / mNumCols) -10 : 0;

    int h = mNumRows>0 ? (height/ mNumRows) -10 : 0;

    int size= w<h ? w:h;

    int pad = 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 DistortedObject getObject()

    {

    return mObject;

    }

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

  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);

    }

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

  public int getBitmap()

    {

    return mBitmap;

    }

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

  public void Continue(View v)

    {

    if( mObjectType==1 )

      {

      firstScreen = false;

      mObject = new DistortedBitmap(100,100,mNumCols);

      setContentView(R.layout.fragment3dlayout);

      Default(null);

      }

    else

      {

      View view = getLayoutInflater().inflate(R.layout.objectpicker2layout, null);

      setContentView(view);

      view.post(new Runnable() {

            @Override

            public void run() {

              setGrid();

            }

        });

      }

    }

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

  public void Create(View v)

    {

    firstScreen = false;

    String str = "";

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

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

    mObject = new DistortedCubes(mNumCols, str, 10);

    setContentView(R.layout.fragment3dlayout);

    Default(null);

    }

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

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

    {

    switch(parent.getId())

      {

      case R.id.objectpicker_spinnerType  : mObjectType = pos; break;

      case R.id.objectpicker_spinnerBitmap: switch(pos)

                                              {

                                              case 0: mBitmap = R.raw.face; break;

                                              case 1: mBitmap = R.raw.dog;  break;

                                              case 2: mBitmap = R.raw.cat;  break;

                                              case 3: mBitmap = R.raw.grid; break;

                                              }

                                            break;

      }

    }

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

  public void onNothingSelected(AdapterView<?> parent)

    {

    }

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

// 'second screen' methods

  public void Default(View view)

    {

    effects[0] = EffectNames.CHROMA;

    effects[1] = EffectNames.ALPHA;

    effects[2] = EffectNames.BRIGHTNESS;

    effects[3] = EffectNames.SATURATION;

    chromaL = 0;

    chromaR = 0;

    chromaG = 0;

    chromaB = 0;

    alphaL     = 0;

    brightnessL= 0;

    saturationL= 0;

    centerX = 50;

    centerY = 50;

    textCenter = (TextView)findViewById(R.id.fragment3dcenterText);

    computeCenter();

    setCenterText();

    setBar(R.id.fragment3dcenterX, centerX);

    setBar(R.id.fragment3dcenterY, centerY);

    addViews();

    }

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

  private void addViews()

    {

    LinearLayout layout = (LinearLayout)findViewById(R.id.fragment3dlayout);

    layout.removeAllViews();

    View chroma    = getLayoutInflater().inflate(R.layout.fragment3dchroma    , null);

    View alpha     = getLayoutInflater().inflate(R.layout.fragment3dalpha     , null);

    View brightness= getLayoutInflater().inflate(R.layout.fragment3dbrightness, null);

    View saturation= getLayoutInflater().inflate(R.layout.fragment3dsaturation, null);

    for( int i=effects.length-1 ; i>=0 ; i-- )

      {

      switch(effects[i])

        {

        case CHROMA     : layout.addView(chroma    , 0); break;

        case ALPHA      : layout.addView(alpha     , 0); break;

        case BRIGHTNESS : layout.addView(brightness, 0); break;

        case SATURATION : layout.addView(saturation, 0); break;

        }

      }

    textChroma    = (TextView)findViewById(R.id.fragment3dchromaText);

    textAlpha     = (TextView)findViewById(R.id.fragment3dalphaText);

    textBrightness= (TextView)findViewById(R.id.fragment3dbrightnessText);

    textSaturation= (TextView)findViewById(R.id.fragment3dsaturationText);

    setChromaText();

    setAlphaText();

    setBrightnessText();

    setSaturationText();

    setBar(R.id.fragment3dchromaBar1, chromaL);

    setBar(R.id.fragment3dchromaBar2, chromaR);

    setBar(R.id.fragment3dchromaBar3, chromaG);

    setBar(R.id.fragment3dchromaBar4, chromaB);

    setBar(R.id.fragment3dalphaBar1     , alphaL);

    setBar(R.id.fragment3dbrightnessBar1, brightnessL);

    setBar(R.id.fragment3dsaturationBar1, saturationL);

    Fragment3DSurfaceView view = (Fragment3DSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    view.getRenderer().setOrder(effects);

    }

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

  private void moveUp(EffectNames name)

    {

    int len = effects.length-1;

    int index = -1;

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

      {

      if( effects[i]==name )

        {

        index=i;

        break;

        }

      }

    if( index==0 )

      {

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

        effects[i] = effects[i+1];

      effects[len] = name;

      }

    else if( index>0 )

      {

      effects[index]   = effects[index-1];

      effects[index-1] = name;

      }

    addViews();

    }

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

  public void ButtonChroma(View v)

    {

    moveUp(EffectNames.CHROMA);

    }

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

  public void ButtonAlpha(View v)

    {

    moveUp(EffectNames.ALPHA);

    }

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

  public void ButtonBrightness(View v)

    {

    moveUp(EffectNames.BRIGHTNESS);

    }

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

  public void ButtonSaturation(View v)

    {

    moveUp(EffectNames.SATURATION);

    }

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

  private void setBar(int id, int value)

    {

    bar = (SeekBar)findViewById(id);

    bar.setOnSeekBarChangeListener(this);

    bar.setProgress(value);

    }

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

  private void computeChroma()

    {

    Fragment3DSurfaceView view = (Fragment3DSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    Fragment3DRenderer renderer = view.getRenderer();

    fchromaL = chromaL/100.0f;

    fchromaR = chromaR*255/100.0f;

    fchromaG = chromaG*255/100.0f;

    fchromaB = chromaB*255/100.0f;

    renderer.setChroma( fchromaL, fchromaR, fchromaG, fchromaB );

    }

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

  private void setChromaText()

    {

    fchromaL = ((int)(100*fchromaL))/100.0f;

    fchromaR = (float)((int)fchromaR);

    fchromaG = (float)((int)fchromaG);

    fchromaB = (float)((int)fchromaB);

    textChroma.setText("chroma("+fchromaL+"( "+fchromaR+" , "+fchromaG+" , "+fchromaB+" )");

    }

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

  private void computeAlpha()

    {

    Fragment3DSurfaceView view = (Fragment3DSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    falphaL = alphaL/100.0f;

    view.getRenderer().setAlpha(falphaL);

    }

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

  private void setAlphaText()

    {

    falphaL = ((int)(100*falphaL))/100.0f;

    textAlpha.setText("alpha("+falphaL+")");

    }

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

  private void computeBrightness()

    {

    Fragment3DSurfaceView view = (Fragment3DSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    fbrightnessL = brightnessL/100.0f;

    view.getRenderer().setBrightness( fbrightnessL );

    }

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

  private void setBrightnessText()

    {

    fbrightnessL = ((int)(100*fbrightnessL))/100.0f;

    textBrightness.setText("brightness("+fbrightnessL+")");

    }

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

  private void computeSaturation()

    {

    Fragment3DSurfaceView view = (Fragment3DSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    fsaturationL = saturationL/100.0f;

    view.getRenderer().setSaturation( fsaturationL );

    }

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

  private void setSaturationText()

    {

    fsaturationL = ((int)(100*fsaturationL))/100.0f;

    textSaturation.setText("saturation("+fsaturationL+")");

    }

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

  private void computeCenter()

    {

    Fragment3DSurfaceView view = (Fragment3DSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    fcenterX = centerX;

    fcenterY = centerY;

    view.getRenderer().setCenter( fcenterX, fcenterY );

    }

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

  private void setCenterText()

    {

    fcenterX = ((int)(100*fcenterX))/100.0f;

    fcenterY = ((int)(100*fcenterY))/100.0f;

    textCenter.setText("center("+fcenterX+","+fcenterY+")");

    }

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

  public float getCenterX()

    {

    return fcenterX;

    }

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

  public float getCenterY()

    {

    return fcenterY;

    }

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

// Overrides

  @Override

  protected void onPause()

    {

    GLSurfaceView mView = (GLSurfaceView)findViewById(R.id.fragment3dSurfaceView);

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

    super.onPause();

    }

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

  @Override

  protected void onResume()

    {

    super.onResume();

    GLSurfaceView mView = (GLSurfaceView)findViewById(R.id.fragment3dSurfaceView);

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

    }

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

  @Override

  public void onWindowFocusChanged(boolean hasFocus)

    {

    super.onWindowFocusChanged(hasFocus);

    if( firstScreen )

      {

      mColsPicker.setValue(mNumCols);

      mRowsPicker.setValue(mNumRows);

      }

    }

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

  @Override

  protected void onDestroy()

    {

    Distorted.onDestroy();

    super.onDestroy();

    }

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

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

    {

    switch (bar.getId())

      {

      case R.id.fragment3dcenterX       : centerX    = progress; computeCenter()    ; setCenterText()    ; break;

      case R.id.fragment3dcenterY       : centerY    = progress; computeCenter()    ; setCenterText()    ; break;

      case R.id.fragment3dchromaBar1    : chromaL    = progress; computeChroma()    ; setChromaText()    ; break;

      case R.id.fragment3dchromaBar2    : chromaR    = progress; computeChroma()    ; setChromaText()    ; break;

      case R.id.fragment3dchromaBar3    : chromaG    = progress; computeChroma()    ; setChromaText()    ; break;

      case R.id.fragment3dchromaBar4    : chromaB    = progress; computeChroma()    ; setChromaText()    ; break;

      case R.id.fragment3dalphaBar1     : alphaL     = progress; computeAlpha()     ; setAlphaText()     ; break;

      case R.id.fragment3dbrightnessBar1: brightnessL= progress; computeBrightness(); setBrightnessText(); break;

      case R.id.fragment3dsaturationBar1: saturationL= progress; computeSaturation(); setSaturationText(); break;

      }

    }

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

  public void onStartTrackingTouch(SeekBar bar) { }

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

  public void onStopTrackingTouch(SeekBar bar)  { }

  }