1 /*
2  * Copyright (C) 2017 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 
17 #include <algorithm>
18 #include <iomanip>
19 
20 #include "TextTable.h"
21 
22 namespace android {
23 namespace lshal {
24 
computeWidth(const std::vector<std::string> & v)25 void TextTable::computeWidth(const std::vector<std::string>& v) {
26     if (mWidths.size() < v.size()) {
27         mWidths.resize(v.size());
28     }
29     for (size_t i = 0; i < v.size(); ++i) {
30         mWidths[i] = std::max(mWidths[i], v[i].length());
31     }
32 }
33 
dump(std::ostream & out) const34 void TextTable::dump(std::ostream& out) const {
35     out << std::left;
36     for (const auto& row : mTable) {
37         if (!row.isRow()) {
38             out << row.line() << std::endl;
39             continue;
40         }
41 
42         for (size_t i = 0; i < row.fields().size(); ++i) {
43             if (i != 0) {
44                 out << " ";
45             }
46             // last column does not std::setw to avoid printing unnecessary spaces.
47             if (i < row.fields().size() - 1) {
48                 out << std::setw(mWidths[i]);
49             }
50             out << row.fields()[i];
51         }
52         out << std::endl;
53     }
54 }
55 
addAll(TextTable && other)56 void TextTable::addAll(TextTable&& other) {
57     for (auto&& row : other.mTable) {
58         if (row.isRow()) {
59             computeWidth(row.fields());
60         }
61 
62         mTable.emplace_back(std::move(row));
63     }
64 }
65 
66 } // namespace lshal
67 } // namespace android
68