1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package android.support.v17.leanback.widget;
17
18import java.io.PrintWriter;
19import java.io.StringWriter;
20
21public abstract class GridTest {
22
23    static class Provider implements Grid.Provider {
24
25        int[] mItems;
26        int mCount;
27        int[] mEdges;
28
29        Provider(int[] items) {
30            mItems = items;
31            mCount = items.length;
32            mEdges = new int[mCount];
33        }
34
35        @Override
36        public int getMinIndex() {
37            return 0;
38        }
39
40        @Override
41        public int getCount() {
42            return mCount;
43        }
44
45        @Override
46        public int createItem(int index, boolean append, Object[] item, boolean disappearingItem) {
47            return mItems[index];
48        }
49
50        @Override
51        public void addItem(Object item, int index, int length, int rowIndex, int edge) {
52            if (edge == Integer.MAX_VALUE || edge == Integer.MIN_VALUE) {
53                // initialize edge for first item added
54                edge = 0;
55            }
56            mEdges[index] = edge;
57        }
58
59        @Override
60        public void removeItem(int index) {
61        }
62
63        @Override
64        public int getEdge(int index) {
65            return mEdges[index];
66        }
67
68        @Override
69        public int getSize(int index) {
70            return mItems[index];
71        }
72
73        void scroll(int distance) {
74            for (int i= 0; i < mEdges.length; i++) {
75                mEdges[i] -= distance;
76            }
77        }
78    }
79
80    Provider mProvider;
81
82    static String dump(Grid grid) {
83        StringWriter w = new StringWriter();
84        grid.debugPrint(new PrintWriter(w));
85        return w.toString();
86    }
87}
88