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/*
* Copyright (C) 2013 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.ingest.adapter;
import android.app.Activity;
import android.content.Context;
import android.mtp.MtpObjectInfo;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.SectionIndexer;
import com.android.gallery3d.R;
import com.android.gallery3d.ingest.MtpDeviceIndex;
import com.android.gallery3d.ingest.MtpDeviceIndex.SortOrder;
import com.android.gallery3d.ingest.SimpleDate;
import com.android.gallery3d.ingest.ui.DateTileView;
import com.android.gallery3d.ingest.ui.MtpThumbnailTileView;
public class MtpAdapter extends BaseAdapter implements SectionIndexer {
public static final int ITEM_TYPE_MEDIA = 0;
public static final int ITEM_TYPE_BUCKET = 1;
private Context mContext;
private MtpDeviceIndex mModel;
private SortOrder mSortOrder = SortOrder.Descending;
private LayoutInflater mInflater;
private int mGeneration = 0;
public MtpAdapter(Activity context) {
super();
mContext = context;
mInflater = LayoutInflater.from(context);
}
public void setMtpDeviceIndex(MtpDeviceIndex index) {
mModel = index;
notifyDataSetChanged();
}
public MtpDeviceIndex getMtpDeviceIndex() {
return mModel;
}
@Override
public void notifyDataSetChanged() {
mGeneration++;
super.notifyDataSetChanged();
}
@Override
public void notifyDataSetInvalidated() {
mGeneration++;
super.notifyDataSetInvalidated();
}
public boolean deviceConnected() {
return (mModel != null) && (mModel.getDevice() != null);
}
public boolean indexReady() {
return (mModel != null) && mModel.indexReady();
}
@Override
public int getCount() {
return mModel != null ? mModel.size() : 0;
}
@Override
public Object getItem(int position) {
return mModel.get(position, mSortOrder);
}
@Override
public boolean areAllItemsEnabled() {
return true;
}
@Override
public boolean isEnabled(int position) {
return true;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public int getViewTypeCount() {
return 2;
}
@Override
public int getItemViewType(int position) {
// If the position is the first in its section, then it corresponds to
// a title tile, if not it's a media tile
if (position == getPositionForSection(getSectionForPosition(position))) {
return ITEM_TYPE_BUCKET;
} else {
return ITEM_TYPE_MEDIA;
}
}
public boolean itemAtPositionIsBucket(int position) {
return getItemViewType(position) == ITEM_TYPE_BUCKET;
}
public boolean itemAtPositionIsMedia(int position) {
return getItemViewType(position) == ITEM_TYPE_MEDIA;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
int type = getItemViewType(position);
if (type == ITEM_TYPE_MEDIA) {
MtpThumbnailTileView imageView;
if (convertView == null) {
imageView = (MtpThumbnailTileView) mInflater.inflate(
R.layout.ingest_thumbnail, parent, false);
} else {
imageView = (MtpThumbnailTileView) convertView;
}
imageView.setMtpDeviceAndObjectInfo(mModel.getDevice(), (MtpObjectInfo)getItem(position), mGeneration);
return imageView;
} else {
DateTileView dateTile;
if (convertView == null) {
dateTile = (DateTileView) mInflater.inflate(
R.layout.ingest_date_tile, parent, false);
} else {
dateTile = (DateTileView) convertView;
}
dateTile.setDate((SimpleDate)getItem(position));
return dateTile;
}
}
@Override
public int getPositionForSection(int section) {
if (getCount() == 0) {
return 0;
}
int numSections = getSections().length;
if (section >= numSections) {
section = numSections - 1;
}
return mModel.getFirstPositionForBucketNumber(section, mSortOrder);
}
@Override
public int getSectionForPosition(int position) {
int count = getCount();
if (count == 0) {
return 0;
}
if (position >= count) {
position = count - 1;
}
return mModel.getBucketNumberForPosition(position, mSortOrder);
}
@Override
public Object[] getSections() {
return getCount() > 0 ? mModel.getBuckets(mSortOrder) : null;
}
public SortOrder getSortOrder() {
return mSortOrder;
}
public int translatePositionWithoutLabels(int position) {
if (mModel == null) return -1;
return mModel.getPositionFromPositionWithoutLabels(position, mSortOrder);
}
}
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