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/*
* Copyright (C) 2017 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.
*/
#ifndef FRAMEWORK_NATIVE_CMDS_LSHAL_TEXT_TABLE_H_
#define FRAMEWORK_NATIVE_CMDS_LSHAL_TEXT_TABLE_H_
#include <iostream>
#include <string>
#include <vector>
namespace android {
namespace lshal {
// An element in TextTable. This is either an actual row (an array of cells
// in this row), or a string of explanatory text.
// To see if this is an actual row, test fields().empty().
class TextTableRow {
public:
// An empty line.
TextTableRow() {}
// A row of cells.
explicit TextTableRow(std::vector<std::string>&& v) : mFields(std::move(v)) {}
// A single comment string.
explicit TextTableRow(std::string&& s) : mLine(std::move(s)) {}
explicit TextTableRow(const std::string& s) : mLine(s) {}
// Whether this row is an actual row of cells.
bool isRow() const { return !fields().empty(); }
// Get all cells.
const std::vector<std::string>& fields() const { return mFields; }
// Get the single comment string.
const std::string& line() const { return mLine; }
private:
std::vector<std::string> mFields;
std::string mLine;
};
// A TextTable is a 2D array of strings.
class TextTable {
public:
// Add a TextTableRow.
void add() { mTable.emplace_back(); }
void add(std::vector<std::string>&& v) {
computeWidth(v);
mTable.emplace_back(std::move(v));
}
void add(const std::string& s) { mTable.emplace_back(s); }
void add(std::string&& s) { mTable.emplace_back(std::move(s)); }
void addAll(TextTable&& other);
// Prints the table to out, with column widths adjusted appropriately according
// to the content.
void dump(std::ostream& out) const;
private:
void computeWidth(const std::vector<std::string>& v);
std::vector<size_t> mWidths;
std::vector<TextTableRow> mTable;
};
} // namespace lshal
} // namespace android
#endif // FRAMEWORK_NATIVE_CMDS_LSHAL_TEXT_TABLE_H_
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