1/*
2 * Copyright (C) 2014 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 */
16
17package android.text;
18
19import android.annotation.Nullable;
20
21// Based on the native implementation of TabStops in
22// frameworks/base/core/jni/android_text_StaticLayout.cpp revision b808260
23public class TabStops {
24    @Nullable
25    private int[] mStops;
26    private final int mTabWidth;
27
28    public TabStops(@Nullable int[] stops, int defaultTabWidth) {
29        mTabWidth = defaultTabWidth;
30        mStops = stops;
31    }
32
33    public float width(float widthSoFar) {
34        if (mStops != null) {
35            for (int i : mStops) {
36                if (i > widthSoFar) {
37                    return i;
38                }
39            }
40        }
41        // find the next tabStop after widthSoFar.
42        return (int) ((widthSoFar + mTabWidth) / mTabWidth) * mTabWidth;
43    }
44}
45