ArtistsAdapter.java

/*
 * Copyright (C) 2017 Team Gateship-One
 * (Hendrik Borghorst & Frederik Luetkes)
 *
 * The AUTHORS.md file contains a detailed contributors list:
 * <https://github.com/gateship-one/odyssey/blob/master/AUTHORS.md>
 *
 * This program 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 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package org.gateshipone.odyssey.adapter;

import android.content.Context;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.GridView;

import org.gateshipone.odyssey.R;
import org.gateshipone.odyssey.artworkdatabase.ArtworkManager;
import org.gateshipone.odyssey.models.ArtistModel;
import org.gateshipone.odyssey.viewitems.GridViewItem;
import org.gateshipone.odyssey.viewitems.ListViewItem;

public class ArtistsAdapter extends GenericSectionAdapter<ArtistModel> implements ArtworkManager.onNewArtistImageListener {
    private static final String TAG = ArtistsAdapter.class.getSimpleName();

    private final Context mContext;

    /**
     * The parent grid to adjust the layoutparams.
     */
    private final AbsListView mListView;

    private ArtworkManager mArtworkManager;

    private boolean mUseList;

    private boolean mHideArtwork;

    public ArtistsAdapter(final Context context, final AbsListView listView, final boolean useList) {
        super();

        mContext = context;
        mListView = listView;

        mUseList = useList;

        mArtworkManager = ArtworkManager.getInstance(context.getApplicationContext());

        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
        mHideArtwork = sharedPreferences.getBoolean(context.getString(R.string.pref_hide_artwork_key), context.getResources().getBoolean(R.bool.pref_hide_artwork_default));
    }

    /**
     * Get a View that displays the data at the specified position in the data set.
     *
     * @param position    The position of the item within the adapter's data set.
     * @param convertView The old view to reuse, if possible.
     * @param parent      The parent that this view will eventually be attached to.
     * @return A View corresponding to the data at the specified position.
     */
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ArtistModel artist = (ArtistModel) getItem(position);
        String label = artist.getArtistName();

        if (mUseList) {
            ListViewItem listItem;
            // Check if a view can be recycled
            if (convertView != null) {
                listItem = (ListViewItem) convertView;
                listItem.setTitle(label);
            } else {
                listItem = new ListViewItem(mContext, label, this);
            }

            if ( !mHideArtwork) {
                // This will prepare the view for fetching the image from the internet if not already saved in local database.
                listItem.prepareArtworkFetching(mArtworkManager, artist);

                // Check if the scroll speed currently is already 0, then start the image task right away.
                if (mScrollSpeed == 0) {
                    listItem.startCoverImageTask();
                }
            }
            return listItem;
        } else {
            GridViewItem gridItem;
            ViewGroup.LayoutParams layoutParams;
            // Check if a view can be recycled
            if (convertView != null) {
                gridItem = (GridViewItem) convertView;
                gridItem.setTitle(label);

                layoutParams = gridItem.getLayoutParams();
                layoutParams.height = ((GridView) mListView).getColumnWidth();
                layoutParams.width = ((GridView) mListView).getColumnWidth();
            } else {
                // Create new view if no reusable is available
                gridItem = new GridViewItem(mContext, label, this);
                layoutParams = new android.widget.AbsListView.LayoutParams(((GridView) mListView).getColumnWidth(), ((GridView) mListView).getColumnWidth());
            }

            // Make sure to reset the layoutParams in case of change (rotation for example)
            gridItem.setLayoutParams(layoutParams);

            if ( !mHideArtwork) {
                // This will prepare the view for fetching the image from the internet if not already saved in local database.
                gridItem.prepareArtworkFetching(mArtworkManager, artist);

                // Check if the scroll speed currently is already 0, then start the image task right away.
                if (mScrollSpeed == 0) {
                    gridItem.startCoverImageTask();
                }
            }
            return gridItem;
        }
    }

    @Override
    public void newArtistImage(ArtistModel artist) {
        notifyDataSetChanged();
    }
}