TransactionAdapter.java :  » Client » bankdroid » bankdroid » start » Android Open Source

package bankdroid.start;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import bankdroid.util.GUIUtil;

import com.csaba.connector.model.Amount;
import com.csaba.connector.model.HistoryItem;
import com.csaba.util.Formatters;

/**
 * @author Gabe
 */
public class TransactionAdapter extends BaseAdapter
{
  private final List<HistoryItem> items;

  public final Comparator<HistoryItem> AMOUNT_COMPARATOR = new Comparator<HistoryItem>()
  {

    @Override
    public int compare( final HistoryItem object1, final HistoryItem object2 )
    {
      return (int) ( object1.getAmount().getAmount() - object2.getAmount().getAmount() );
    }
  };

  public final Comparator<HistoryItem> DATE_COMPARATOR = new Comparator<HistoryItem>()
  {

    @Override
    public int compare( final HistoryItem object1, final HistoryItem object2 )
    {
      return object1.getDate().compareTo(object2.getDate());
    }
  };

  public TransactionAdapter()
  {
    items = new ArrayList<HistoryItem>();
  }

  @Override
  public int getCount()
  {
    return items.size();
  }

  @Override
  public Object getItem( final int position )
  {
    return items.get(position);
  }

  @Override
  public long getItemId( final int position )
  {
    return position;
  }

  @Override
  public View getView( final int position, View contentView, final ViewGroup parent )
  {
    final Context context = parent.getContext();
    if ( contentView == null )
    {
      contentView = View.inflate(context, R.layout.tranitem, null);
    }

    final HistoryItem item = items.get(position);

    final TextView amount = (TextView) contentView.findViewById(R.id.amount);
    amount.setText(item.getAmount().toString());
    amount.setTextColor(GUIUtil.getColor(context, item.getAmount().getAmount()));

    ( (TextView) contentView.findViewById(R.id.date) ).setText(Formatters.getShortDateFormat().format(
        item.getDate()));
    ( (TextView) contentView.findViewById(R.id.description) ).setText(item.getDescription());

    return contentView;
  }

  public void setItems( final HistoryItem[] items )
  {
    if ( items == null )
      return;

    this.items.clear();
    for ( final HistoryItem item : items )
    {
      this.items.add(item);
    }

    Collections.sort(this.items, DATE_COMPARATOR);

    notifyDataSetChanged();
  }

  public void addItems( final HistoryItem[] items )
  {
    if ( items == null || items.length == 0 )
      return;

    for ( final HistoryItem item : items )
    {
      this.items.add(item);
    }

    Collections.sort(this.items, DATE_COMPARATOR);

    notifyDataSetChanged();
  }

  public Amount getCredits()
  {
    Amount amount = null;
    for ( final HistoryItem item : items )
    {
      final Amount other = item.getAmount();
      if ( other.getAmount() > 0 )
      {
        if ( amount == null )
        {
          amount = new Amount(other);
        }
        else
        {
          if ( !amount.getCurrency().equals(other.getCurrency()) )
            throw new IllegalArgumentException("Currency mismatch in transaction list.");
          amount.setAmount(amount.getAmount() + other.getAmount());
        }
      }
    }
    return amount;
  }

  public Amount getDebits()
  {
    Amount amount = null;
    for ( final HistoryItem item : items )
    {
      final Amount other = item.getAmount();
      if ( other.getAmount() < 0 )
      {
        if ( amount == null )
        {
          amount = new Amount(other);
        }
        else
        {
          if ( !amount.getCurrency().equals(other.getCurrency()) )
            throw new IllegalArgumentException("Currency mismatch in transaction list.");
          amount.setAmount(amount.getAmount() + other.getAmount());
        }
      }
    }
    return amount;
  }

}