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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.filtershow.category;
import android.content.Context;
import android.content.res.TypedArray;
import android.database.DataSetObserver;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.LinearLayout;
import com.android.gallery3d.R;
public class CategoryTrack extends LinearLayout {
private CategoryAdapter mAdapter;
private int mElemSize;
private DataSetObserver mDataSetObserver = new DataSetObserver() {
@Override
public void onChanged() {
super.onChanged();
invalidate();
}
@Override
public void onInvalidated() {
super.onInvalidated();
fillContent();
}
};
public CategoryTrack(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.CategoryTrack);
mElemSize = a.getDimensionPixelSize(R.styleable.CategoryTrack_iconSize, 0);
}
public void setAdapter(CategoryAdapter adapter) {
mAdapter = adapter;
mAdapter.registerDataSetObserver(mDataSetObserver);
fillContent();
}
public void fillContent() {
removeAllViews();
mAdapter.setItemWidth(mElemSize);
mAdapter.setItemHeight(LayoutParams.MATCH_PARENT);
int n = mAdapter.getCount();
for (int i = 0; i < n; i++) {
View view = mAdapter.getView(i, null, this);
addView(view, i);
}
requestLayout();
}
@Override
public void invalidate() {
for (int i = 0; i < this.getChildCount(); i++) {
View child = getChildAt(i);
child.invalidate();
}
}
}
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