/usr/share/gocode/src/github.com/daviddengcn/go-colortext/ct_win.go is in golang-github-daviddengcn-go-colortext-dev 0.0~git20150719.0.3b18c85-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | // +build windows
package ct
import (
"syscall"
"unsafe"
)
var fg_colors = []uint16{
0,
0,
foreground_red,
foreground_green,
foreground_red | foreground_green,
foreground_blue,
foreground_red | foreground_blue,
foreground_green | foreground_blue,
foreground_red | foreground_green | foreground_blue}
var bg_colors = []uint16{
0,
0,
background_red,
background_green,
background_red | background_green,
background_blue,
background_red | background_blue,
background_green | background_blue,
background_red | background_green | background_blue}
const (
foreground_blue = uint16(0x0001)
foreground_green = uint16(0x0002)
foreground_red = uint16(0x0004)
foreground_intensity = uint16(0x0008)
background_blue = uint16(0x0010)
background_green = uint16(0x0020)
background_red = uint16(0x0040)
background_intensity = uint16(0x0080)
foreground_mask = foreground_blue | foreground_green | foreground_red | foreground_intensity
background_mask = background_blue | background_green | background_red | background_intensity
)
var (
kernel32 = syscall.NewLazyDLL("kernel32.dll")
procGetStdHandle = kernel32.NewProc("GetStdHandle")
procSetConsoleTextAttribute = kernel32.NewProc("SetConsoleTextAttribute")
procGetConsoleScreenBufferInfo = kernel32.NewProc("GetConsoleScreenBufferInfo")
hStdout uintptr
initScreenInfo *console_screen_buffer_info
)
func setConsoleTextAttribute(hConsoleOutput uintptr, wAttributes uint16) bool {
ret, _, _ := procSetConsoleTextAttribute.Call(
hConsoleOutput,
uintptr(wAttributes))
return ret != 0
}
type coord struct {
X, Y int16
}
type small_rect struct {
Left, Top, Right, Bottom int16
}
type console_screen_buffer_info struct {
DwSize coord
DwCursorPosition coord
WAttributes uint16
SrWindow small_rect
DwMaximumWindowSize coord
}
func getConsoleScreenBufferInfo(hConsoleOutput uintptr) *console_screen_buffer_info {
var csbi console_screen_buffer_info
ret, _, _ := procGetConsoleScreenBufferInfo.Call(
hConsoleOutput,
uintptr(unsafe.Pointer(&csbi)))
if ret == 0 {
return nil
}
return &csbi
}
const (
std_output_handle = uint32(-11 & 0xFFFFFFFF)
)
func init() {
kernel32 := syscall.NewLazyDLL("kernel32.dll")
procGetStdHandle = kernel32.NewProc("GetStdHandle")
hStdout, _, _ = procGetStdHandle.Call(uintptr(std_output_handle))
initScreenInfo = getConsoleScreenBufferInfo(hStdout)
syscall.LoadDLL("")
}
func resetColor() {
if initScreenInfo == nil { // No console info - Ex: stdout redirection
return
}
setConsoleTextAttribute(hStdout, initScreenInfo.WAttributes)
}
func changeColor(fg Color, fgBright bool, bg Color, bgBright bool) {
attr := uint16(0)
if fg == None || bg == None {
cbufinfo := getConsoleScreenBufferInfo(hStdout)
if cbufinfo == nil { // No console info - Ex: stdout redirection
return
}
attr = getConsoleScreenBufferInfo(hStdout).WAttributes
} // if
if fg != None {
attr = attr & ^foreground_mask | fg_colors[fg]
if fgBright {
attr |= foreground_intensity
} // if
} // if
if bg != None {
attr = attr & ^background_mask | bg_colors[bg]
if bgBright {
attr |= background_intensity
} // if
} // if
setConsoleTextAttribute(hStdout, attr)
}
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