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.content.Intent;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.NumberPicker;

import android.widget.Spinner;

import org.distorted.examples.R;

import org.distorted.library.mesh.MeshBase;

import java.io.IOException;

import java.io.InputStream;

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

public class PredeformActivity extends Activity implements AdapterView.OnItemSelectedListener

  {

  private int mNumCols;

  private int mNumRows;

  private int mNumSlic;

  private int mObjectType;

  private int mBitmapID;

  private NumberPicker mColsPicker, mRowsPicker, mSlicPicker;

  private boolean[] mShape;

  private MeshBase mMesh;

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

  @Override

  protected void onCreate(Bundle savedState)

    {

    super.onCreate(savedState);

    mNumCols = 1;

    mNumRows = 1;

    mNumSlic = 1;

    mBitmapID=-1;

    resetShape();

    setContentView(R.layout.object_picker_layout);

    mColsPicker = findViewById(R.id.objectpicker_cols);

    mRowsPicker = findViewById(R.id.objectpicker_rows);

    mSlicPicker = findViewById(R.id.objectpicker_slices);

    mColsPicker.setMaxValue(40);

    mColsPicker.setMinValue( 1);

    mRowsPicker.setMaxValue(40);

    mRowsPicker.setMinValue( 1);

    mSlicPicker.setMaxValue(40);

    mSlicPicker.setMinValue( 0);

    mColsPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener()

         {

         @Override

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

           {

           mNumCols = newVal;

           resetShape();

           }

         });

    mRowsPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener()

         {

         @Override

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

           {

           mNumRows = newVal;

           resetShape();

           }

         });

    mSlicPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener()

         {

         @Override

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

           {

           mNumSlic = newVal;

           resetShape();

           }

         });

    mObjectType = 0;

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

    typeSpinner.setOnItemSelectedListener(this);

    String[] objectType = new String[PredeformMeshList.LENGTH];

    for(int mesh = 0; mesh< PredeformMeshList.LENGTH; mesh++)

      {

      objectType[mesh] = "Mesh: "+ PredeformMeshList.getName(mesh);

      }

    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.objectpicker_spinnerBitmap);

    bitmapSpinner.setOnItemSelectedListener(this);

    String[] objectBitmap = new String[] { "Texture: Grid", "Texture: Girl", "Texture: Dog", "Texture: Cat",

                                           "Texture: Squares", "Texture: Bean", "Texture: Lisa", "Texture: World" };

    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 resetShape()

    {

    mShape = new boolean[mNumRows*mNumCols];

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

      {

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

        {

        mShape[rows*mNumCols+cols] = true;

        }

      }

    recreateObject();

    }

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

  MeshBase getMesh()

    {

    return mMesh;

    }

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

  Bitmap getBitmap()

    {

    return createBitmap(mBitmapID);

    }

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

  private void recreateObject()

    {

    String str = PredeformMeshList.getString(mObjectType, mNumCols, mNumRows, mShape);

    mMesh      = PredeformMeshList.createMesh(mObjectType, mNumCols, mNumRows, mNumSlic, mBitmapID, str);

    }

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

  private Bitmap createBitmap(int bitmapID)

    {

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

    if( bitmapID!=-1)

      {

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

        {

        return 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();

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

      Canvas canvas = new Canvas(bmp);

      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);

        }

      return bmp;

      }

    return null;

    }

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

  void click(int row, int col)

    {

    if( mObjectType==0 )  // cubes

      {

      int id = row*mNumCols+col;

      mShape[id] = !mShape[id];

      recreateObject();

      }

    }

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

  private void uncheckAll()

    {

    if( mObjectType==0 )  // cubes

      {

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

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

          mShape[row*mNumCols+col] = true;

      recreateObject();

      }

    }

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

  public void Create(View v)

    {

    Intent mainInt = new Intent( getApplicationContext(), PredeformActivity2.class);

    Bundle b = new Bundle();

    b.putInt("type"  , mObjectType);

    b.putInt("cols"  , PredeformMeshList.getCols(mObjectType, mNumCols, mNumRows, mNumSlic) );

    b.putInt("rows"  , PredeformMeshList.getRows(mObjectType, mNumCols, mNumRows, mNumSlic) );

    b.putInt("slices", PredeformMeshList.getSlic(mObjectType, mNumCols, mNumRows, mNumSlic) );

    b.putInt("bitmap", mBitmapID);

    b.putString("string", PredeformMeshList.getString(mObjectType, mNumCols, mNumRows, mShape));

    mainInt.putExtras(b);

    startActivity(mainInt);

    }

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

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

    {

    switch(parent.getId())

      {

      case R.id.objectpicker_spinnerType  : if( mObjectType!=pos )

                                              {

                                              mObjectType = pos;

                                              uncheckAll();

                                              int dim = PredeformMeshList.getDimension(mObjectType);

                                              mRowsPicker.setEnabled(dim>=1);

                                              mColsPicker.setEnabled(dim>=2);

                                              mSlicPicker.setEnabled(dim>=3);

                                              recreateObject();

                                              }

                                            break;

      case R.id.objectpicker_spinnerBitmap: switch(pos)

                                              {

                                              case 0: mBitmapID = -1            ; break;

                                              case 1: mBitmapID = R.raw.face    ; break;

                                              case 2: mBitmapID = R.raw.dog     ; break;

                                              case 3: mBitmapID = R.raw.cat     ; break;

                                              case 4: mBitmapID = R.raw.grid    ; break;

                                              case 5: mBitmapID = R.raw.bean    ; break;

                                              case 6: mBitmapID = R.raw.monalisa; break;

                                              case 7: mBitmapID = R.raw.world   ; break;

                                              }

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

                                            v.getRenderer().setTexture( createBitmap(mBitmapID) );

                                            break;

      }

    }

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

  public void onNothingSelected(AdapterView<?> parent)

    {

    }

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

// Overrides

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

  @Override

  public void onWindowFocusChanged(boolean hasFocus)

    {

    super.onWindowFocusChanged(hasFocus);

    mColsPicker.setValue(mNumCols);

    mRowsPicker.setValue(mNumRows);

    mSlicPicker.setValue(mNumSlic);

    resetShape();

    }

  }