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.effects3d;

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.support.design.widget.TabLayout;

import android.support.v4.view.ViewPager;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.CheckBox;

import org.distorted.examples.R;

import org.distorted.library.effect.EffectType;

import org.distorted.library.main.Distorted;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.main.MeshCubes;

import org.distorted.library.main.MeshFlat;

import org.distorted.library.main.MeshObject;

import java.io.IOException;

import java.io.InputStream;

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

public class Effects3DActivity2 extends AppCompatActivity

  {

  public static final int NUM_TABS = 3;

  private int mNumCols;

  private int mNumRows;

  private int mNumSlic;

  private int mObjectType;

  private int mBitmapID;

  private String mString;

  private DistortedTexture mTexture;

  private MeshObject mMesh;

  private Bitmap mBitmap;

  private float mCenterX, mCenterY, mCenterZ;

  private float mRegionX, mRegionY, mRegionR;

  private DistortedEffects mEffects;

  private ViewPager mViewPager;

  private Effects3DTabViewPager mPager;

  private static boolean mShowCenter = true;

  private static boolean mShowRegion = true;

  private static boolean mShowNormal = true;

  private static boolean mUseOIT     = false;

  private Effects3DTab[] mTab;

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

  @Override

  protected void onCreate(Bundle savedState)

    {

    super.onCreate(savedState);

    setTheme(R.style.Theme_AppCompat_NoActionBar);

    mTab = new Effects3DTab[NUM_TABS];

    Bundle b = getIntent().getExtras();

    mObjectType = b.getInt("type");

    mNumCols    = b.getInt("cols");

    mNumRows    = b.getInt("rows");

    mNumSlic    = b.getInt("slices");

    mBitmapID   = b.getInt("bitmap");

    mString     = b.getString("string");

    DistortedEffects.setMax(EffectType.VERTEX ,20);    // those have to be called before

    DistortedEffects.setMax(EffectType.FRAGMENT,3);    // any DistortedEffect get created!

    if( mObjectType==1 ) mMesh = new MeshFlat(mNumCols,mNumRows);

    else                 mMesh = new MeshCubes(mNumCols, mString, mNumSlic);

    mMesh.setShowNormals(mShowNormal);

    mTexture= new DistortedTexture(mNumCols,mNumRows);

    mEffects= new DistortedEffects();

    final View view = getLayoutInflater().inflate(R.layout.effects3dlayout, null);

    setContentView(view);

    mViewPager = findViewById(R.id.effects3d_viewpager);

    mViewPager.setOffscreenPageLimit( (NUM_TABS+1)/2 );

    mPager = new Effects3DTabViewPager(this, getSupportFragmentManager() );

    mViewPager.setAdapter(mPager);

    TabLayout tabLayout = findViewById(R.id.effects3d_sliding_tabs);

    tabLayout.setupWithViewPager(mViewPager);

    resetData();

    }

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

  public DistortedTexture getTexture()

    {

    return mTexture;

    }

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

  public MeshObject getMesh()

    {

    return mMesh;

    }

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

  public Bitmap getBitmap()

    {

    if( mBitmap==null )

      {

      if( mBitmapID!=-1)

        {

        InputStream is = getResources().openRawResource(mBitmapID);

        try

          {

          mBitmap = BitmapFactory.decodeStream(is);

          }

        finally

          {

          try

            {

            is.close();

            }

          catch(IOException e) { }

          }

        }

      else

        {

        final int W = 64*mNumCols;

        final int H = 64*mNumRows;

        Paint paint = new Paint();

        mBitmap = Bitmap.createBitmap(W,H, 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, W, H, paint);

        paint.setColor(0xffffffff);

        for(int i=0; i<=mNumCols ; i++ ) canvas.drawRect(W*i/mNumCols-1, 0, W*i/mNumCols + 1, H, paint);

        for(int i=0; i<=mNumRows ; i++ ) canvas.drawRect( 0, H*i/mNumRows-1, W,  H*i/mNumRows+1, paint);

        }

      }

    return mBitmap;

    }

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

  public void setRegion(float x, float y, float r)

    {

    mRegionX = x;

    mRegionY =-y;

    mRegionR = r;

    Effects3DSurfaceView view = findViewById(R.id.effects3dSurfaceView);

    view.getRenderer().setRegion(mRegionX, mRegionY, mRegionR);

    }

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

  public void setCenter(float x, float y, float z)

    {

    mCenterX = x;

    mCenterY = y;

    mCenterZ = z;

    Effects3DSurfaceView view = findViewById(R.id.effects3dSurfaceView);

    view.getRenderer().setCenter( mCenterX, mCenterY, mCenterZ );

    }

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

  public float getCenterX()

    {

    return mCenterX;

    }

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

  public float getCenterY()

    {

    return mCenterY;

    }

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

  public float getRegionX()

    {

    return mRegionX;

    }

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

  public float getRegionY()

    {

    return mRegionY;

    }

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

  public float getRegionR()

    {

    return mRegionR;

    }

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

  public int getWidth()

    {

    return mTexture==null ? 0: mTexture.getWidth();

    }

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

  public int getHeight()

    {

    return mTexture==null ? 0: mTexture.getHeight();

    }

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

  public int getDepth()

    {

    return mTexture==null ? 0: mTexture.getDepth(mMesh);

    }

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

  public int getScreenWidth()

    {

    return 0;

    }

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

  void resetData()

    {

    mCenterX = 0.5f*getWidth();

    mCenterY = 0.5f*getHeight();

    mRegionX = 0;

    mRegionY = 0;

    mRegionR = getWidth()/2;

    Effects3DSurfaceView view = findViewById(R.id.effects3dSurfaceView);

    Effects3DRenderer renderer= view.getRenderer();

    renderer.setCenter( mCenterX, mCenterY, mCenterZ );

    renderer.setRegion( mRegionX, mRegionY, mRegionR );

    renderer.mQuat1.set(0,0,0,1);

    renderer.mQuat2.set(0,0,0,1);

    }

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

// 'second screen' methods

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

  public DistortedEffects getEffects()

    {

    return mEffects;

    }

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

  public void newEffect(View v)

    {

    int pos = mViewPager.getCurrentItem();

    if( pos>=0 && pos<NUM_TABS ) mTab[pos].newEffect();

    }

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

  public void removeAll(View v)

    {

    int pos = mViewPager.getCurrentItem();

    if( pos>=0 && pos<NUM_TABS ) mTab[pos].removeAll();

    }

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

  public void remove(View v)

    {

    int pos = mViewPager.getCurrentItem();

    if( pos>=0 && pos<NUM_TABS ) mTab[pos].remove(v);

    }

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

  void setTab(int pos, Effects3DTab tab)

    {

    if( pos>=0 && pos<NUM_TABS ) mTab[pos] = tab;

    }

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

  boolean getShowCenter()

    {

    return mShowCenter;

    }

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

  boolean getShowRegion()

    {

    return mShowRegion;

    }

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

  public void showCenter(View view)

    {

    CheckBox box = (CheckBox)view;

    mShowCenter = box.isChecked();

    Effects3DSurfaceView sv = findViewById(R.id.effects3dSurfaceView);

    sv.getRenderer().showRegionAndCenter(mShowRegion,mShowCenter);

    }

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

  public void showRegion(View view)

    {

    CheckBox box = (CheckBox)view;

    mShowRegion = box.isChecked();

    Effects3DSurfaceView sv = findViewById(R.id.effects3dSurfaceView);

    sv.getRenderer().showRegionAndCenter(mShowRegion,mShowCenter);

    }

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

  public void showNormal(View view)

    {

    CheckBox box = (CheckBox)view;

    mShowNormal = box.isChecked();

    if ( mMesh!=null )

      {

      mMesh.setShowNormals(mShowNormal);

      }

    }

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

  public void triggerOIT(View view)

    {

    CheckBox box = (CheckBox)view;

    mUseOIT = box.isChecked();

    Effects3DSurfaceView sv = findViewById(R.id.effects3dSurfaceView);

    sv.getRenderer().useOIT(mUseOIT);

    }

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

// Overrides

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

  @Override

  protected void onPause()

    {

    GLSurfaceView mView = findViewById(R.id.effects3dSurfaceView);

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

    Distorted.onPause();

    super.onPause();

    }

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

  @Override

  protected void onResume()

    {

    super.onResume();

    GLSurfaceView mView = findViewById(R.id.effects3dSurfaceView);

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

    }

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

  @Override

  protected void onDestroy()

    {

    Distorted.onDestroy();

    super.onDestroy();

    }

  }