1 files changed, 144 insertions, 0 deletions
diff --git a/lib/spdlog/sinks/wincolor_sink.h b/lib/spdlog/sinks/wincolor_sink.h
new file mode 100644
index 0000000..402fa12
--- /dev/null
+++ b/lib/spdlog/sinks/wincolor_sink.h
@@ -0,0 +1,144 @@
+//
+// Copyright(c) 2016 spdlog
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../common.h"
+#include "../details/null_mutex.h"
+#include "base_sink.h"
+
+#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<class Mutex>
+class wincolor_sink : public base_sink<Mutex>
+{
+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(HANDLE std_handle)
+        : out_handle_(std_handle)
+    {
+        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> lock(base_sink<Mutex>::_mutex);
+        colors_[level] = color;
+    }
+
+protected:
+    void _sink_it(const details::log_msg &msg) override
+    {
+        if (msg.color_range_end > msg.color_range_start)
+        {
+            // before color range
+            _print_range(msg, 0, msg.color_range_start);
+
+            // in color range
+            auto orig_attribs = set_console_attribs(colors_[msg.level]);
+            _print_range(msg, msg.color_range_start, msg.color_range_end);
+            ::SetConsoleTextAttribute(out_handle_, orig_attribs); // reset to orig colors
+            // after color range
+            _print_range(msg, msg.color_range_end, msg.formatted.size());
+        }
+        else // print without colors if color range is invalid
+        {
+            _print_range(msg, 0, msg.formatted.size());
+        }
+    }
+
+    void _flush() override
+    {
+        // windows console always flushed?
+    }
+
+private:
+    HANDLE out_handle_;
+    std::unordered_map<level::level_enum, WORD, level::level_hasher> colors_;
+
+    // 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 details::log_msg &msg, size_t start, size_t end)
+    {
+        DWORD size = static_cast<DWORD>(end - start);
+        WriteConsoleA(out_handle_, msg.formatted.data() + start, size, nullptr, nullptr);
+    }
+};
+
+//
+// windows color console to stdout
+//
+template<class Mutex>
+class wincolor_stdout_sink : public wincolor_sink<Mutex>
+{
+public:
+    wincolor_stdout_sink()
+        : wincolor_sink<Mutex>(GetStdHandle(STD_OUTPUT_HANDLE))
+    {
+    }
+};
+
+using wincolor_stdout_sink_mt = wincolor_stdout_sink<std::mutex>;
+using wincolor_stdout_sink_st = wincolor_stdout_sink<details::null_mutex>;
+
+//
+// windows color console to stderr
+//
+template<class Mutex>
+class wincolor_stderr_sink : public wincolor_sink<Mutex>
+{
+public:
+    wincolor_stderr_sink()
+        : wincolor_sink<Mutex>(GetStdHandle(STD_ERROR_HANDLE))
+    {
+    }
+};
+
+using wincolor_stderr_sink_mt = wincolor_stderr_sink<std::mutex>;
+using wincolor_stderr_sink_st = wincolor_stderr_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog