/*
* Copyright (C) 2007-2008 Esmertec AG. Copyright (C) 2007-2008 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 info.guardianproject.otr.app.im.app;
import java.util.List;
import info.guardianproject.otr.app.im.R;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListAdapter;
import android.widget.TextView;
/** A general image list adapter. */
public class ImageListAdapter extends BaseAdapter implements ListAdapter {
public static interface ImageListItem {
public Drawable getDrawable();
public CharSequence getText();
}
private final LayoutInflater mInflater;
private final List<? extends ImageListItem> mData;
private final int mItemViewId;
private final int mImageId;
private final int mTextId;
private final boolean mAreAllItemsSelectable;
private final int mSeparatorId;
public ImageListAdapter(Context context, List<? extends ImageListItem> data) {
this(context, data, R.layout.imglist_item, R.id.image, R.id.text, R.id.separator);
}
public ImageListAdapter(Context context, List<? extends ImageListItem> data, int itemViewId,
int imgId, int textId, int separatorId) {
mData = data;
mItemViewId = itemViewId;
mImageId = imgId;
mTextId = textId;
mAreAllItemsSelectable = !data.contains(null);
mSeparatorId = separatorId;
mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount() {
return mData.size();
}
public Object getItem(int position) {
return mData.get(position);
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
View v;
if (convertView == null) {
v = mInflater.inflate(mItemViewId, parent, false);
} else {
v = convertView;
}
setupView(position, v);
return v;
}
private void setupView(int position, View view) {
ImageView iv = (ImageView) view.findViewById(mImageId);
TextView tv = (TextView) view.findViewById(mTextId);
View separator = view.findViewById(mSeparatorId);
if (!isEnabled(position)) {
if (iv != null) {
iv.setVisibility(View.GONE);
}
if (tv != null) {
tv.setVisibility(View.GONE);
}
if (separator != null) {
separator.setVisibility(View.VISIBLE);
}
} else {
if (separator != null) {
separator.setVisibility(View.GONE);
}
final ImageListItem item = mData.get(position);
if (iv != null) {
iv.setVisibility(View.VISIBLE);
iv.setImageDrawable(item.getDrawable());
}
if (tv != null) {
tv.setVisibility(View.VISIBLE);
tv.setText(item.getText());
}
}
}
@Override
public boolean areAllItemsEnabled() {
return mAreAllItemsSelectable;
}
@Override
public boolean isEnabled(int position) {
return mData.get(position) != null;
}
}