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#ifndef __HAYAI_CONSOLE
#define __HAYAI_CONSOLE
#include <iostream>
#if !defined(HAYAI_NO_COLOR)
# if defined(_WIN32)
# ifndef NOMINMAX
# define NOMINMAX
# endif
# include <windows.h>
# else
# include <unistd.h>
# include <cstdio>
# endif
#endif
namespace hayai
{
/// Static helper class for outputting to a terminal/console.
class Console
{
public:
/// Console text colors.
enum TextColor
{
/// Default console color. Used for resets.
TextDefault,
/// Black.
///
/// @warning Avoid using black unless it is absolutely necesssary.
TextBlack,
/// Blue.
TextBlue,
/// Green.
TextGreen,
/// Cyan.
TextCyan,
/// Red.
TextRed,
/// Purple.
TextPurple,
/// Yellow.
TextYellow,
/// White.
///
/// @warning Avoid using white unless it is absolutely necessary.
TextWhite
};
/// Get the singleton instance of @ref Console.
/// @returns a reference to the singleton instance of the
/// benchmarker execution controller.
inline static Console& Instance()
{
static Console singleton;
return singleton;
}
/// Test if formatting is enabled.
inline static bool IsFormattingEnabled()
{
return Instance()._formattingEnabled;
}
/// Set whether formatting is enabled.
inline static void SetFormattingEnabled(bool enabled)
{
Instance()._formattingEnabled = enabled;
}
private:
inline Console()
: _formattingEnabled(true)
{
}
bool _formattingEnabled;
};
#if defined(_WIN32) && !defined(HAYAI_NO_COLOR) // Windows
static inline WORD GetConsoleAttributes()
{
CONSOLE_SCREEN_BUFFER_INFO consoleInfo;
GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE),
&consoleInfo);
return consoleInfo.wAttributes;
}
inline std::ostream& operator <<(std::ostream& stream,
const Console::TextColor& color)
{
static const WORD defaultConsoleAttributes =
GetConsoleAttributes();
WORD newColor;
if ((!Console::IsFormattingEnabled()) ||
((stream.rdbuf() != std::cout.rdbuf()) &&
(stream.rdbuf() != std::cerr.rdbuf())))
return stream;
switch(color)
{
case Console::TextDefault:
newColor = defaultConsoleAttributes;
break;
case Console::TextBlack:
newColor = 0;
break;
case Console::TextBlue:
newColor = FOREGROUND_BLUE;
break;
case Console::TextGreen:
newColor = FOREGROUND_GREEN;
break;
case Console::TextCyan:
newColor = FOREGROUND_GREEN | FOREGROUND_BLUE;
break;
case Console::TextRed:
newColor = FOREGROUND_RED;
break;
case Console::TextPurple:
newColor = FOREGROUND_RED | FOREGROUND_BLUE;
break;
case Console::TextYellow:
newColor =
FOREGROUND_RED |
FOREGROUND_GREEN |
FOREGROUND_INTENSITY;
break;
case Console::TextWhite:
newColor =
FOREGROUND_RED |
FOREGROUND_GREEN |
FOREGROUND_BLUE |
FOREGROUND_INTENSITY;
break;
}
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), newColor);
return stream;
}
#elif !defined(HAYAI_NO_COLOR) // Linux or others
inline std::ostream& operator <<(std::ostream& stream,
const Console::TextColor& color)
{
static const bool outputNoColor = isatty(fileno(stdout)) != 1;
if ((!Console::IsFormattingEnabled()) ||
(outputNoColor) ||
((stream.rdbuf() != std::cout.rdbuf()) &&
(stream.rdbuf() != std::cerr.rdbuf())))
return stream;
const char* value = "";
switch(color) {
case Console::TextDefault:
value = "\033[m"; break;
case Console::TextBlack:
value = "\033[0;30m"; break;
case Console::TextBlue:
value = "\033[0;34m"; break;
case Console::TextGreen:
value = "\033[0;32m"; break;
case Console::TextCyan:
value = "\033[0;36m"; break;
case Console::TextRed:
value = "\033[0;31m"; break;
case Console::TextPurple:
value = "\033[0;35m"; break;
case Console::TextYellow:
value = "\033[0;33m"; break;
case Console::TextWhite:
value = "\033[0;37m"; break;
}
return stream << value;
}
#else // No color
inline std::ostream& operator <<(std::ostream& stream,
const Console::TextColor&)
{
return stream;
}
#endif
}
#endif
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