102 lines
3.3 KiB
Go
102 lines
3.3 KiB
Go
// +build windows
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package winterm
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import (
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. "github.com/Azure/go-ansiterm"
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)
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const (
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FOREGROUND_COLOR_MASK = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE
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BACKGROUND_COLOR_MASK = BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE
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)
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// collectAnsiIntoWindowsAttributes modifies the passed Windows text mode flags to reflect the
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// request represented by the passed ANSI mode.
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func collectAnsiIntoWindowsAttributes(windowsMode WORD, inverted bool, baseMode WORD, ansiMode SHORT) (WORD, bool) {
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switch ansiMode {
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// Mode styles
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case ANSI_SGR_BOLD:
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windowsMode = windowsMode | FOREGROUND_INTENSITY
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case ANSI_SGR_DIM, ANSI_SGR_BOLD_DIM_OFF:
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windowsMode &^= FOREGROUND_INTENSITY
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case ANSI_SGR_UNDERLINE:
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windowsMode = windowsMode | COMMON_LVB_UNDERSCORE
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case ANSI_SGR_REVERSE:
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inverted = true
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case ANSI_SGR_REVERSE_OFF:
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inverted = false
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case ANSI_SGR_UNDERLINE_OFF:
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windowsMode &^= COMMON_LVB_UNDERSCORE
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// Foreground colors
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case ANSI_SGR_FOREGROUND_DEFAULT:
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windowsMode = (windowsMode &^ FOREGROUND_MASK) | (baseMode & FOREGROUND_MASK)
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case ANSI_SGR_FOREGROUND_BLACK:
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windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK)
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case ANSI_SGR_FOREGROUND_RED:
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windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED
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case ANSI_SGR_FOREGROUND_GREEN:
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windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_GREEN
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case ANSI_SGR_FOREGROUND_YELLOW:
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windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_GREEN
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case ANSI_SGR_FOREGROUND_BLUE:
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windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_BLUE
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case ANSI_SGR_FOREGROUND_MAGENTA:
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windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_BLUE
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case ANSI_SGR_FOREGROUND_CYAN:
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windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_GREEN | FOREGROUND_BLUE
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case ANSI_SGR_FOREGROUND_WHITE:
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windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE
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// Background colors
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case ANSI_SGR_BACKGROUND_DEFAULT:
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// Black with no intensity
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windowsMode = (windowsMode &^ BACKGROUND_MASK) | (baseMode & BACKGROUND_MASK)
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case ANSI_SGR_BACKGROUND_BLACK:
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windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK)
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case ANSI_SGR_BACKGROUND_RED:
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windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED
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case ANSI_SGR_BACKGROUND_GREEN:
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windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_GREEN
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case ANSI_SGR_BACKGROUND_YELLOW:
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windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_GREEN
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case ANSI_SGR_BACKGROUND_BLUE:
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windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_BLUE
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case ANSI_SGR_BACKGROUND_MAGENTA:
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windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_BLUE
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case ANSI_SGR_BACKGROUND_CYAN:
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windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_GREEN | BACKGROUND_BLUE
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case ANSI_SGR_BACKGROUND_WHITE:
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windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE
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}
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return windowsMode, inverted
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}
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// invertAttributes inverts the foreground and background colors of a Windows attributes value
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func invertAttributes(windowsMode WORD) WORD {
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return (COMMON_LVB_MASK & windowsMode) | ((FOREGROUND_MASK & windowsMode) << 4) | ((BACKGROUND_MASK & windowsMode) >> 4)
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}
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