| // |
| // Copyright(c) 2016 spdlog |
| // Distributed under the MIT License (http://opensource.org/licenses/MIT) |
| // |
| |
| #pragma once |
| |
| #ifndef SPDLOG_H |
| #include "spdlog/spdlog.h" |
| #endif |
| |
| #include "spdlog/common.h" |
| #include "spdlog/details/console_globals.h" |
| #include "spdlog/details/null_mutex.h" |
| #include "spdlog/sinks/sink.h" |
| |
| #include <memory> |
| #include <mutex> |
| #include <string> |
| #include <unordered_map> |
| #include <wincon.h> |
| |
| namespace spdlog { |
| namespace sinks { |
| /* |
| * Windows color console sink. Uses WriteConsoleA to write to the console with |
| * colors |
| */ |
| template<typename OutHandle, typename ConsoleMutex> |
| class wincolor_sink : public sink |
| { |
| public: |
| const WORD BOLD = FOREGROUND_INTENSITY; |
| const WORD RED = FOREGROUND_RED; |
| const WORD GREEN = FOREGROUND_GREEN; |
| const WORD CYAN = FOREGROUND_GREEN | FOREGROUND_BLUE; |
| const WORD WHITE = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE; |
| const WORD YELLOW = FOREGROUND_RED | FOREGROUND_GREEN; |
| |
| wincolor_sink() |
| : out_handle_(OutHandle::handle()) |
| , mutex_(ConsoleMutex::mutex()) |
| { |
| colors_[level::trace] = WHITE; |
| colors_[level::debug] = CYAN; |
| colors_[level::info] = GREEN; |
| colors_[level::warn] = YELLOW | BOLD; |
| colors_[level::err] = RED | BOLD; // red bold |
| colors_[level::critical] = BACKGROUND_RED | WHITE | BOLD; // white bold on red background |
| colors_[level::off] = 0; |
| } |
| |
| ~wincolor_sink() override |
| { |
| this->flush(); |
| } |
| |
| wincolor_sink(const wincolor_sink &other) = delete; |
| wincolor_sink &operator=(const wincolor_sink &other) = delete; |
| |
| // change the color for the given level |
| void set_color(level::level_enum level, WORD color) |
| { |
| std::lock_guard<mutex_t> lock(mutex_); |
| colors_[level] = color; |
| } |
| |
| void log(const details::log_msg &msg) final override |
| { |
| std::lock_guard<mutex_t> lock(mutex_); |
| fmt::memory_buffer formatted; |
| formatter_->format(msg, formatted); |
| if (msg.color_range_end > msg.color_range_start) |
| { |
| // before color range |
| print_range_(formatted, 0, msg.color_range_start); |
| |
| // in color range |
| auto orig_attribs = set_console_attribs(colors_[msg.level]); |
| print_range_(formatted, msg.color_range_start, msg.color_range_end); |
| ::SetConsoleTextAttribute(out_handle_, |
| orig_attribs); // reset to orig colors |
| // after color range |
| print_range_(formatted, msg.color_range_end, formatted.size()); |
| } |
| else // print without colors if color range is invalid |
| { |
| print_range_(formatted, 0, formatted.size()); |
| } |
| } |
| |
| void flush() final override |
| { |
| // windows console always flushed? |
| } |
| |
| void set_pattern(const std::string &pattern) override final |
| { |
| std::lock_guard<mutex_t> lock(mutex_); |
| formatter_ = std::unique_ptr<spdlog::formatter>(new pattern_formatter(pattern)); |
| } |
| |
| void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) override final |
| { |
| std::lock_guard<mutex_t> lock(mutex_); |
| formatter_ = std::move(sink_formatter); |
| } |
| |
| private: |
| using mutex_t = typename ConsoleMutex::mutex_t; |
| // set color and return the orig console attributes (for resetting later) |
| WORD set_console_attribs(WORD attribs) |
| { |
| CONSOLE_SCREEN_BUFFER_INFO orig_buffer_info; |
| ::GetConsoleScreenBufferInfo(out_handle_, &orig_buffer_info); |
| WORD back_color = orig_buffer_info.wAttributes; |
| // retrieve the current background color |
| back_color &= static_cast<WORD>(~(FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE | FOREGROUND_INTENSITY)); |
| // keep the background color unchanged |
| ::SetConsoleTextAttribute(out_handle_, attribs | back_color); |
| return orig_buffer_info.wAttributes; // return orig attribs |
| } |
| |
| // print a range of formatted message to console |
| void print_range_(const fmt::memory_buffer &formatted, size_t start, size_t end) |
| { |
| auto size = static_cast<DWORD>(end - start); |
| ::WriteConsoleA(out_handle_, formatted.data() + start, size, nullptr, nullptr); |
| } |
| |
| HANDLE out_handle_; |
| mutex_t &mutex_; |
| std::unordered_map<level::level_enum, WORD, level::level_hasher> colors_; |
| }; |
| |
| using wincolor_stdout_sink_mt = wincolor_sink<details::console_stdout, details::console_mutex>; |
| using wincolor_stdout_sink_st = wincolor_sink<details::console_stdout, details::console_nullmutex>; |
| |
| using wincolor_stderr_sink_mt = wincolor_sink<details::console_stderr, details::console_mutex>; |
| using wincolor_stderr_sink_st = wincolor_sink<details::console_stderr, details::console_nullmutex>; |
| |
| } // namespace sinks |
| } // namespace spdlog |