src/com/android/gallery3d/data/LocalMediaItem.java

/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.gallery3d.data;

import android.database.Cursor;

import com.android.gallery3d.util.GalleryUtils;

import java.text.DateFormat;
import java.util.Date;

//
// LocalMediaItem is an abstract class captures those common fields
// in LocalImage and LocalVideo.
//
public abstract class LocalMediaItem extends MediaItem {

    @SuppressWarnings("unused")
    private static final String TAG = "LocalMediaItem";

    // database fields
    public int id;
    public String caption;
    public String mimeType;
    public long fileSize;
    public double latitude = INVALID_LATLNG;
    public double longitude = INVALID_LATLNG;
    public long dateTakenInMs;
    public long dateAddedInSec;
    public long dateModifiedInSec;
    public String filePath;
    public int bucketId;
    public int width;
    public int height;

    public LocalMediaItem(Path path, long version) {
        super(path, version);
    }

    @Override
    public long getDateInMs() {
        return dateTakenInMs;
    }

    @Override
    public String getName() {
        return caption;
    }

    public String getPathTile(String path) {
        // extract file name after last slash
        int lastSlash = path.lastIndexOf('/');
        if (lastSlash >= 0) {
            lastSlash++;
            if (lastSlash < path.length()) {
                path = path.substring(lastSlash);
            }
        }
        // truncate the file extension (if any)
        int lastDot = path.lastIndexOf('.');
        if (lastDot > 0) {
            path = path.substring(0, lastDot);
        }
        return path;
    }

    @Override
    public void getLatLong(double[] latLong) {
        latLong[0] = latitude;
        latLong[1] = longitude;
    }

    abstract protected boolean updateFromCursor(Cursor cursor);

    public int getBucketId() {
        return bucketId;
    }

    protected void updateContent(Cursor cursor) {
        if (updateFromCursor(cursor)) {
            mDataVersion = nextVersionNumber();
        }
    }

    @Override
    public MediaDetails getDetails() {
        MediaDetails details = super.getDetails();
        details.addDetail(MediaDetails.INDEX_PATH, filePath);
        details.addDetail(MediaDetails.INDEX_TITLE, caption);
        DateFormat formater = DateFormat.getDateTimeInstance();
        details.addDetail(MediaDetails.INDEX_DATETIME,
                formater.format(new Date(dateModifiedInSec * 1000)));
        details.addDetail(MediaDetails.INDEX_WIDTH, width);
        details.addDetail(MediaDetails.INDEX_HEIGHT, height);

        if (GalleryUtils.isValidLocation(latitude, longitude)) {
            details.addDetail(MediaDetails.INDEX_LOCATION, new double[] {latitude, longitude});
        }
        if (fileSize > 0) details.addDetail(MediaDetails.INDEX_SIZE, fileSize);
        return details;
    }

    @Override
    public String getMimeType() {
        return mimeType;
    }

    @Override
    public long getSize() {
        return fileSize;
    }
}