Magic Cube

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// Copyright 2020 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Magic Cube.                                                              //

//                                                                                               //

// Magic Cube is proprietary software licensed under an EULA which you should have received      //

// along with the code. If not, check https://distorted.org/magic/License-Magic-Cube.html        //

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package org.distorted.dialogs;

import androidx.annotation.NonNull;

import androidx.fragment.app.FragmentActivity;

import androidx.viewpager.widget.PagerAdapter;

import androidx.viewpager.widget.ViewPager;

import android.view.View;

import android.view.ViewGroup;

import org.distorted.patterns.RubikPattern;

import org.distorted.patterns.RubikPatternList;

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class RubikDialogPatternPagerAdapter extends PagerAdapter

  {

  private final FragmentActivity mAct;

  private final RubikDialogPatternView[] mViews;

  private final RubikDialogPattern mDialog;

  private final int mNumTabs;

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  RubikDialogPatternPagerAdapter(FragmentActivity act, ViewPager viewPager, RubikDialogPattern dialog)

    {

    mAct = act;

    mDialog = dialog;

    mNumTabs = RubikPatternList.NUM_OBJECTS;

    mViews = new RubikDialogPatternView[mNumTabs];

    viewPager.setAdapter(this);

    viewPager.setOffscreenPageLimit(mNumTabs-1);

    }

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  void rememberState()

    {

    RubikPattern pattern = RubikPattern.getInstance();

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

      {

      int cat = mViews[i].getCurrentCategory();

      int pos = mViews[i].getCurrentVisiblePos();

      int exp = mViews[i].getExpanded();

      pattern.rememberState(i,cat,pos,exp);

      }

    }

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  @Override

  @NonNull

  public Object instantiateItem(@NonNull ViewGroup collection, final int position)

    {

    mViews[position] = new RubikDialogPatternView(mAct, mDialog, position);

    collection.addView(mViews[position]);

    return mViews[position];

    }

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  @Override

  public void destroyItem(ViewGroup collection, int position, @NonNull Object view)

    {

    collection.removeView((View) view);

    }

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  @Override

  public int getCount()

    {

    return mNumTabs;

    }

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  @Override

  public boolean isViewFromObject(@NonNull View view, @NonNull Object object)

    {

    return view == object;

    }

  }