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spdlog/sinks/wincolor_sink.h

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+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#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 <array>
+#include <cstdint>
+
+namespace spdlog {
+namespace sinks {
+/*
+ * Windows color console sink. Uses WriteConsoleA to write to the console with
+ * colors
+ */
+template<typename ConsoleMutex>
+class wincolor_sink : public sink
+{
+public:
+    wincolor_sink(void *out_handle, color_mode mode);
+    ~wincolor_sink() override;
+
+    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, std::uint16_t color);
+    void log(const details::log_msg &msg) final override;
+    void flush() final override;
+    void set_pattern(const std::string &pattern) override final;
+    void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) override final;
+    void set_color_mode(color_mode mode);
+
+protected:
+    using mutex_t = typename ConsoleMutex::mutex_t;
+    void *out_handle_;
+    mutex_t &mutex_;
+    bool should_do_colors_;
+    std::unique_ptr<spdlog::formatter> formatter_;
+    std::array<std::uint16_t, level::n_levels> colors_;
+
+    // set foreground color and return the orig console attributes (for resetting later)
+    std::uint16_t set_foreground_color_(std::uint16_t attribs);
+
+    // print a range of formatted message to console
+    void print_range_(const memory_buf_t &formatted, size_t start, size_t end);
+
+    // in case we are redirected to file (not in console mode)
+    void write_to_file_(const memory_buf_t &formatted);
+
+    void set_color_mode_impl(color_mode mode);
+};
+
+template<typename ConsoleMutex>
+class wincolor_stdout_sink : public wincolor_sink<ConsoleMutex>
+{
+public:
+    explicit wincolor_stdout_sink(color_mode mode = color_mode::automatic);
+};
+
+template<typename ConsoleMutex>
+class wincolor_stderr_sink : public wincolor_sink<ConsoleMutex>
+{
+public:
+    explicit wincolor_stderr_sink(color_mode mode = color_mode::automatic);
+};
+
+using wincolor_stdout_sink_mt = wincolor_stdout_sink<details::console_mutex>;
+using wincolor_stdout_sink_st = wincolor_stdout_sink<details::console_nullmutex>;
+
+using wincolor_stderr_sink_mt = wincolor_stderr_sink<details::console_mutex>;
+using wincolor_stderr_sink_st = wincolor_stderr_sink<details::console_nullmutex>;
+} // namespace sinks
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "wincolor_sink-inl.h"
+#endif