Magic Cube

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// Copyright 2020 Leszek Koltunski                                                               //

//                                                                                               //

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

//                                                                                               //

// Magic Cube 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.                                                           //

//                                                                                               //

// Magic Cube 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 Magic Cube.  If not, see <http://www.gnu.org/licenses/>.                           //

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package org.distorted.dialog;

import android.content.Context;

import android.support.v4.app.FragmentActivity;

import android.util.AttributeSet;

import android.util.DisplayMetrics;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.FrameLayout;

import android.widget.LinearLayout;

import android.widget.ScrollView;

import android.widget.Spinner;

import org.distorted.magic.R;

import org.distorted.magic.RubikActivity;

import org.distorted.object.RubikObjectList;

import org.distorted.patterns.RubikPattern;

import org.distorted.uistate.RubikState;

import org.distorted.uistate.RubikStatePattern;

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public class RubikDialogPatternView extends FrameLayout implements AdapterView.OnItemSelectedListener

  {

  private LinearLayout mLayout;

  private ScrollView mScroll;

  private RubikDialogPattern mDialog;

  private int mTab, mPos;

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  public RubikDialogPatternView(Context context, AttributeSet attrs, int defStyle)

    {

    super(context, attrs, defStyle);

    }

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  public RubikDialogPatternView(Context context, AttributeSet attrs)

    {

    super(context, attrs);

    }

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  public RubikDialogPatternView(FragmentActivity act, RubikDialogPattern dialog, int position)

    {

    super(act);

    mDialog = dialog;

    mTab = position;

    View tab = inflate( act, R.layout.dialog_pattern_tab, null);

    mLayout = tab.findViewById(R.id.tabLayout);

    mScroll = tab.findViewById(R.id.tabScrollView);

    String[] categories = createCategories();

    Spinner spinner = tab.findViewById(R.id.pattern_category_spinner);

    spinner.setOnItemSelectedListener(this);

    ArrayAdapter<String> adapter = new ArrayAdapter<>(act, android.R.layout.simple_spinner_item, categories);

    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

    spinner.setAdapter(adapter);

    RubikPattern pattern = RubikPattern.getInstance();

    spinner.setSelection(pattern.recallCategory(mTab));

    addView(tab);

    }

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  private String[] createCategories()

    {

    RubikPattern pattern = RubikPattern.getInstance();

    int numCat = pattern.getNumCategories(mTab);

    String[] ret = new String[numCat];

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

      {

      ret[i] = pattern.getCategoryName(mTab,i);

      }

    return ret;

    }

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  private String[] createPatterns(int category)

    {

    RubikPattern pattern = RubikPattern.getInstance();

    int numPat = pattern.getNumPatterns(mTab, category);

    String[] ret = new String[numPat];

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

      {

      ret[i] = pattern.getPatternName(mTab, category, i);

      }

    return ret;

    }

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  private void fillPatterns(final int category)

    {

    final RubikActivity act = (RubikActivity)getContext();

    DisplayMetrics metrics = act.getResources().getDisplayMetrics();

    final float scale = metrics.density;

    int margin = (int)(3*scale + 0.5f);

    LinearLayout.LayoutParams bParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.WRAP_CONTENT);

    bParams.setMargins(margin, margin, margin, margin);

    final String[] patterns = createPatterns(category);

    int len = patterns.length;

    final RubikPattern pattern = RubikPattern.getInstance();

    mLayout.removeAllViews();

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

      {

      final int ii = i;

      Button button = new Button(act);

      button.setLayoutParams(bParams);

      button.setText(patterns[i]);

      button.setOnClickListener( new View.OnClickListener()

        {

        @Override

        public void onClick(View view)

          {

          int[] sizes = RubikObjectList.CUBE.getSizes();

          int[][] moves = pattern.reInitialize(mTab, category, ii);

          act.changeObject(RubikObjectList.CUBE,sizes[mTab],moves);

          RubikStatePattern state = (RubikStatePattern) RubikState.PATT.getStateClass();

          state.setPattern(act, mTab, category, ii);

          mDialog.rememberState();

          mDialog.dismiss();

          }

        });

      mLayout.addView(button);

      }

    }

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  int getCurrentCategory()

    {

    return mPos;

    }

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  int getCurrentScrollPos()

    {

    return mScroll.getScrollY();

    }

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  @Override

  protected void onLayout(boolean changed, int left, int top, int right, int bottom)

    {

    super.onLayout(changed,left,top,right,bottom);

    if( !changed )

      {

      final RubikPattern pattern = RubikPattern.getInstance();

      mScroll.setScrollY( pattern.recallScrollPos(mTab) );

      }

    }

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  @Override

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

    {

    if( parent.getId() == R.id.pattern_category_spinner )

      {

      mPos = pos;

      fillPatterns(pos);

      }

    }

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  @Override

  public void onNothingSelected(AdapterView<?> parent)

    {

    }

  }