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.NonNull;
20import android.text.StaticLayout.LineBreaks;
21
22import java.util.Collections;
23import java.util.List;
24
25// Based on the native implementation of LineBreaker in
26// frameworks/base/core/jni/android_text_StaticLayout.cpp revision b808260
27public abstract class LineBreaker {
28
29    protected static final int TAB_MASK   = 0x20000000;  // keep in sync with StaticLayout
30
31    protected final @NonNull List<Primitive> mPrimitives;
32    protected final @NonNull LineWidth mLineWidth;
33    protected final @NonNull TabStops mTabStops;
34
35    public LineBreaker(@NonNull List<Primitive> primitives, @NonNull LineWidth lineWidth,
36            @NonNull TabStops tabStops) {
37        mPrimitives = Collections.unmodifiableList(primitives);
38        mLineWidth = lineWidth;
39        mTabStops = tabStops;
40    }
41
42    public abstract void computeBreaks(@NonNull LineBreaks breakInfo);
43}
44