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|
package curses
/*
#include <ncurses.h>
#include <locale.h>
#cgo darwin LDFLAGS: -lncurses
#cgo linux,386 LDFLAGS: -lncurses
#cgo linux,amd64 LDFLAGS: -l:libncurses.a -l:libtinfo.a -l:libgpm.a -ldl
*/
import "C"
import (
"fmt"
"os"
"os/signal"
"syscall"
"time"
"unicode/utf8"
)
// Types of user action
const (
Rune = iota
CtrlA
CtrlB
CtrlC
CtrlD
CtrlE
CtrlF
CtrlG
CtrlH
Tab
CtrlJ
CtrlK
CtrlL
CtrlM
CtrlN
CtrlO
CtrlP
CtrlQ
CtrlR
CtrlS
CtrlT
CtrlU
CtrlV
CtrlW
CtrlX
CtrlY
CtrlZ
ESC
Invalid
Mouse
BTab
BSpace
Del
PgUp
PgDn
Up
Down
Left
Right
Home
End
SLeft
SRight
F1
F2
F3
F4
AltBS
AltA
AltB
AltC
AltD
AltE
AltF
AltZ = AltA + 'z' - 'a'
)
// Pallete
const (
ColNormal = iota
ColPrompt
ColMatch
ColCurrent
ColCurrentMatch
ColSpinner
ColInfo
ColCursor
ColSelected
ColHeader
ColUser
)
const (
doubleClickDuration = 500 * time.Millisecond
)
type ColorTheme struct {
UseDefault bool
Fg int16
Bg int16
DarkBg int16
Prompt int16
Match int16
Current int16
CurrentMatch int16
Spinner int16
Info int16
Cursor int16
Selected int16
Header int16
}
type Event struct {
Type int
Char rune
MouseEvent *MouseEvent
}
type MouseEvent struct {
Y int
X int
S int
Down bool
Double bool
Mod bool
}
var (
_buf []byte
_in *os.File
_color func(int, bool) C.int
_colorMap map[int]int
_prevDownTime time.Time
_clickY []int
_screen *C.SCREEN
Default16 *ColorTheme
Dark256 *ColorTheme
Light256 *ColorTheme
FG int
CurrentFG int
BG int
DarkBG int
)
func init() {
_prevDownTime = time.Unix(0, 0)
_clickY = []int{}
_colorMap = make(map[int]int)
Default16 = &ColorTheme{
UseDefault: true,
Fg: 15,
Bg: 0,
DarkBg: C.COLOR_BLACK,
Prompt: C.COLOR_BLUE,
Match: C.COLOR_GREEN,
Current: C.COLOR_YELLOW,
CurrentMatch: C.COLOR_GREEN,
Spinner: C.COLOR_GREEN,
Info: C.COLOR_WHITE,
Cursor: C.COLOR_RED,
Selected: C.COLOR_MAGENTA,
Header: C.COLOR_CYAN}
Dark256 = &ColorTheme{
UseDefault: true,
Fg: 15,
Bg: 0,
DarkBg: 236,
Prompt: 110,
Match: 108,
Current: 254,
CurrentMatch: 151,
Spinner: 148,
Info: 144,
Cursor: 161,
Selected: 168,
Header: 109}
Light256 = &ColorTheme{
UseDefault: true,
Fg: 15,
Bg: 0,
DarkBg: 251,
Prompt: 25,
Match: 66,
Current: 237,
CurrentMatch: 23,
Spinner: 65,
Info: 101,
Cursor: 161,
Selected: 168,
Header: 31}
}
func attrColored(pair int, bold bool) C.int {
var attr C.int
if pair > ColNormal {
attr = C.COLOR_PAIR(C.int(pair))
}
if bold {
attr = attr | C.A_BOLD
}
return attr
}
func attrMono(pair int, bold bool) C.int {
var attr C.int
switch pair {
case ColCurrent:
if bold {
attr = C.A_REVERSE
}
case ColMatch:
attr = C.A_UNDERLINE
case ColCurrentMatch:
attr = C.A_UNDERLINE | C.A_REVERSE
}
if bold {
attr = attr | C.A_BOLD
}
return attr
}
func MaxX() int {
return int(C.COLS)
}
func MaxY() int {
return int(C.LINES)
}
func getch(nonblock bool) int {
b := make([]byte, 1)
syscall.SetNonblock(int(_in.Fd()), nonblock)
_, err := _in.Read(b)
if err != nil {
return -1
}
return int(b[0])
}
func Init(theme *ColorTheme, black bool, mouse bool) {
{
in, err := os.OpenFile("/dev/tty", syscall.O_RDONLY, 0)
if err != nil {
panic("Failed to open /dev/tty")
}
_in = in
// Break STDIN
// syscall.Dup2(int(in.Fd()), int(os.Stdin.Fd()))
}
C.setlocale(C.LC_ALL, C.CString(""))
_screen = C.newterm(nil, C.stderr, C.stdin)
if _screen == nil {
fmt.Println("Invalid $TERM: " + os.Getenv("TERM"))
os.Exit(2)
}
C.set_term(_screen)
if mouse {
C.mousemask(C.ALL_MOUSE_EVENTS, nil)
}
C.noecho()
C.raw() // stty dsusp undef
intChan := make(chan os.Signal, 1)
signal.Notify(intChan, os.Interrupt, os.Kill)
go func() {
<-intChan
Close()
os.Exit(2)
}()
if theme != nil {
C.start_color()
initPairs(theme, black)
_color = attrColored
} else {
_color = attrMono
}
}
func initPairs(theme *ColorTheme, black bool) {
fg := C.short(theme.Fg)
bg := C.short(theme.Bg)
if black {
bg = C.COLOR_BLACK
} else if theme.UseDefault {
fg = -1
bg = -1
C
|