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292 lines
12 KiB
C++
292 lines
12 KiB
C++
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#ifndef INDICATORS_BLOCK_PROGRESS_BAR
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#define INDICATORS_BLOCK_PROGRESS_BAR
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#include <indicators/color.hpp>
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#include <indicators/details/stream_helper.hpp>
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#include <algorithm>
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#include <atomic>
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#include <chrono>
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#include <indicators/setting.hpp>
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#include <indicators/terminal_size.hpp>
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#include <iomanip>
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#include <iostream>
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#include <sstream>
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#include <mutex>
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#include <string>
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#include <thread>
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#include <tuple>
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#include <utility>
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namespace indicators {
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class BlockProgressBar {
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using Settings = std::tuple<option::ForegroundColor, option::BarWidth, option::Start, option::End,
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option::PrefixText, option::PostfixText, option::ShowPercentage,
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option::ShowElapsedTime, option::ShowRemainingTime, option::Completed,
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option::SavedStartTime, option::MaxPostfixTextLen, option::FontStyles,
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option::MaxProgress, option::Stream>;
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public:
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template <typename... Args,
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typename std::enable_if<details::are_settings_from_tuple<
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Settings, typename std::decay<Args>::type...>::value,
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void *>::type = nullptr>
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explicit BlockProgressBar(Args &&... args)
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: settings_(details::get<details::ProgressBarOption::foreground_color>(
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option::ForegroundColor{Color::unspecified}, std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::bar_width>(option::BarWidth{100},
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std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::start>(option::Start{"["},
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std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::end>(option::End{"]"},
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std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::prefix_text>(
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option::PrefixText{""}, std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::postfix_text>(
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option::PostfixText{""}, std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::show_percentage>(
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option::ShowPercentage{true}, std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::show_elapsed_time>(
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option::ShowElapsedTime{false}, std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::show_remaining_time>(
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option::ShowRemainingTime{false}, std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::completed>(option::Completed{false},
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std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::saved_start_time>(
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option::SavedStartTime{false}, std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::max_postfix_text_len>(
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option::MaxPostfixTextLen{0}, std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::font_styles>(
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option::FontStyles{std::vector<FontStyle>{}}, std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::max_progress>(
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option::MaxProgress{100}, std::forward<Args>(args)...),
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details::get<details::ProgressBarOption::stream>(option::Stream{std::cout},
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std::forward<Args>(args)...)) {}
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template <typename T, details::ProgressBarOption id>
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void set_option(details::Setting<T, id> &&setting) {
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static_assert(!std::is_same<T, typename std::decay<decltype(details::get_value<id>(
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std::declval<Settings>()))>::type>::value,
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"Setting has wrong type!");
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std::lock_guard<std::mutex> lock(mutex_);
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get_value<id>() = std::move(setting).value;
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}
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template <typename T, details::ProgressBarOption id>
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void set_option(const details::Setting<T, id> &setting) {
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static_assert(!std::is_same<T, typename std::decay<decltype(details::get_value<id>(
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std::declval<Settings>()))>::type>::value,
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"Setting has wrong type!");
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std::lock_guard<std::mutex> lock(mutex_);
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get_value<id>() = setting.value;
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}
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void set_option(
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const details::Setting<std::string, details::ProgressBarOption::postfix_text> &setting) {
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std::lock_guard<std::mutex> lock(mutex_);
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get_value<details::ProgressBarOption::postfix_text>() = setting.value;
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if (setting.value.length() > get_value<details::ProgressBarOption::max_postfix_text_len>()) {
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get_value<details::ProgressBarOption::max_postfix_text_len>() = setting.value.length();
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}
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}
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void
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set_option(details::Setting<std::string, details::ProgressBarOption::postfix_text> &&setting) {
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std::lock_guard<std::mutex> lock(mutex_);
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get_value<details::ProgressBarOption::postfix_text>() = std::move(setting).value;
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auto &new_value = get_value<details::ProgressBarOption::postfix_text>();
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if (new_value.length() > get_value<details::ProgressBarOption::max_postfix_text_len>()) {
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get_value<details::ProgressBarOption::max_postfix_text_len>() = new_value.length();
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}
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}
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void set_progress(float value) {
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{
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std::lock_guard<std::mutex> lock{mutex_};
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progress_ = value;
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}
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save_start_time();
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print_progress();
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}
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void tick() {
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{
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std::lock_guard<std::mutex> lock{mutex_};
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progress_ += 1;
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}
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save_start_time();
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print_progress();
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}
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size_t current() {
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std::lock_guard<std::mutex> lock{mutex_};
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return (std::min)(static_cast<size_t>(progress_),
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size_t(get_value<details::ProgressBarOption::max_progress>()));
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}
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bool is_completed() const { return get_value<details::ProgressBarOption::completed>(); }
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void mark_as_completed() {
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get_value<details::ProgressBarOption::completed>() = true;
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print_progress();
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}
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private:
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template <details::ProgressBarOption id>
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auto get_value() -> decltype((details::get_value<id>(std::declval<Settings &>()).value)) {
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return details::get_value<id>(settings_).value;
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}
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template <details::ProgressBarOption id>
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auto get_value() const
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-> decltype((details::get_value<id>(std::declval<const Settings &>()).value)) {
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return details::get_value<id>(settings_).value;
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}
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Settings settings_;
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float progress_{0.0};
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std::chrono::time_point<std::chrono::high_resolution_clock> start_time_point_;
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std::mutex mutex_;
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template <typename Indicator, size_t count> friend class MultiProgress;
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template <typename Indicator> friend class DynamicProgress;
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std::atomic<bool> multi_progress_mode_{false};
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void save_start_time() {
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auto &show_elapsed_time = get_value<details::ProgressBarOption::show_elapsed_time>();
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auto &saved_start_time = get_value<details::ProgressBarOption::saved_start_time>();
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auto &show_remaining_time = get_value<details::ProgressBarOption::show_remaining_time>();
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if ((show_elapsed_time || show_remaining_time) && !saved_start_time) {
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start_time_point_ = std::chrono::high_resolution_clock::now();
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saved_start_time = true;
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}
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}
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std::pair<std::string, int> get_prefix_text() {
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std::stringstream os;
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os << get_value<details::ProgressBarOption::prefix_text>();
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const auto result = os.str();
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const auto result_size = unicode::display_width(result);
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return {result, result_size};
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}
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std::pair<std::string, int> get_postfix_text() {
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std::stringstream os;
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const auto max_progress = get_value<details::ProgressBarOption::max_progress>();
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auto now = std::chrono::high_resolution_clock::now();
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auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(now - start_time_point_);
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if (get_value<details::ProgressBarOption::show_percentage>()) {
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os << " " << (std::min)(static_cast<size_t>(progress_ / max_progress * 100.0), size_t(100))
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<< "%";
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}
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auto &saved_start_time = get_value<details::ProgressBarOption::saved_start_time>();
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if (get_value<details::ProgressBarOption::show_elapsed_time>()) {
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os << " [";
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if (saved_start_time)
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details::write_duration(os, elapsed);
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else
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os << "00:00s";
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}
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if (get_value<details::ProgressBarOption::show_remaining_time>()) {
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if (get_value<details::ProgressBarOption::show_elapsed_time>())
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os << "<";
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else
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os << " [";
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if (saved_start_time) {
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auto eta = std::chrono::nanoseconds(
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progress_ > 0
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? static_cast<long long>(std::ceil(float(elapsed.count()) *
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max_progress / progress_))
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: 0);
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auto remaining = eta > elapsed ? (eta - elapsed) : (elapsed - eta);
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details::write_duration(os, remaining);
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} else {
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os << "00:00s";
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}
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os << "]";
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} else {
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if (get_value<details::ProgressBarOption::show_elapsed_time>())
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os << "]";
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}
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os << " " << get_value<details::ProgressBarOption::postfix_text>();
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const auto result = os.str();
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const auto result_size = unicode::display_width(result);
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return {result, result_size};
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}
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public:
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void print_progress(bool from_multi_progress = false) {
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std::lock_guard<std::mutex> lock{mutex_};
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auto &os = get_value<details::ProgressBarOption::stream>();
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const auto max_progress = get_value<details::ProgressBarOption::max_progress>();
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if (multi_progress_mode_ && !from_multi_progress) {
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if (progress_ > max_progress) {
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get_value<details::ProgressBarOption::completed>() = true;
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}
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return;
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}
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if (get_value<details::ProgressBarOption::foreground_color>() != Color::unspecified)
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details::set_stream_color(os, get_value<details::ProgressBarOption::foreground_color>());
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for (auto &style : get_value<details::ProgressBarOption::font_styles>())
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details::set_font_style(os, style);
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const auto prefix_pair = get_prefix_text();
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const auto prefix_text = prefix_pair.first;
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const auto prefix_length = prefix_pair.second;
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os << "\r" << prefix_text;
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os << get_value<details::ProgressBarOption::start>();
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details::BlockProgressScaleWriter writer{os,
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get_value<details::ProgressBarOption::bar_width>()};
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writer.write(progress_ / max_progress * 100);
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os << get_value<details::ProgressBarOption::end>();
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const auto postfix_pair = get_postfix_text();
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const auto postfix_text = postfix_pair.first;
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const auto postfix_length = postfix_pair.second;
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os << postfix_text;
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// Get length of prefix text and postfix text
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const auto start_length = get_value<details::ProgressBarOption::start>().size();
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const auto bar_width = get_value<details::ProgressBarOption::bar_width>();
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const auto end_length = get_value<details::ProgressBarOption::end>().size();
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const auto terminal_width = terminal_size().second;
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// prefix + bar_width + postfix should be <= terminal_width
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const int remaining = terminal_width - (prefix_length + start_length + bar_width + end_length + postfix_length);
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if (prefix_length == -1 || postfix_length == -1) {
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os << "\r";
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} else if (remaining > 0) {
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os << std::string(remaining, ' ') << "\r";
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} else if (remaining < 0) {
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// Do nothing. Maybe in the future truncate postfix with ...
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}
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os.flush();
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if (progress_ > max_progress) {
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get_value<details::ProgressBarOption::completed>() = true;
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}
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if (get_value<details::ProgressBarOption::completed>() &&
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!from_multi_progress) // Don't std::endl if calling from MultiProgress
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os << termcolor::reset << std::endl;
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}
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};
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} // namespace indicators
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#endif |