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api_common.go
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api_common.go
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// termbox is a library for creating cross-platform text-based interfaces
package termbox
// public API, common OS agnostic part
type (
InputMode int
EventType uint8
Modifier uint8
Key uint16
Attribute uint16
)
// This type represents a termbox event. The 'Mod', 'Key' and 'Ch' fields are
// valid if 'Type' is EventKey. The 'Width' and 'Height' fields are valid if
// 'Type' is EventResize. The 'Err' field is valid if 'Type' is EventError.
type Event struct {
Type EventType // one of Event* constants
Mod Modifier // one of Mod* constants or 0
Key Key // one of Key* constants, invalid if 'Ch' is not 0
Ch rune // a unicode character
Width int // width of the screen
Height int // height of the screen
Err error // error in case if input failed
MouseX int // x coord of mouse
MouseY int // y coord of mouse
}
// A cell, single conceptual entity on the screen. The screen is basically a 2d
// array of cells. 'Ch' is a unicode character, 'Fg' and 'Bg' are foreground
// and background attributes respectively.
type Cell struct {
Ch rune
Fg Attribute
Bg Attribute
}
// To know if termbox has been initialized or not
var (
IsInit bool = false
)
// Key constants, see Event.Key field.
const (
KeyF1 Key = 0xFFFF - iota
KeyF2
KeyF3
KeyF4
KeyF5
KeyF6
KeyF7
KeyF8
KeyF9
KeyF10
KeyF11
KeyF12
KeyInsert
KeyDelete
KeyHome
KeyEnd
KeyPgup
KeyPgdn
KeyArrowUp
KeyArrowDown
KeyArrowLeft
KeyArrowRight
key_min // see terminfo
MouseLeft
MouseMiddle
MouseRight
)
const (
KeyCtrlTilde Key = 0x00
KeyCtrl2 Key = 0x00
KeyCtrlSpace Key = 0x00
KeyCtrlA Key = 0x01
KeyCtrlB Key = 0x02
KeyCtrlC Key = 0x03
KeyCtrlD Key = 0x04
KeyCtrlE Key = 0x05
KeyCtrlF Key = 0x06
KeyCtrlG Key = 0x07
KeyBackspace Key = 0x08
KeyCtrlH Key = 0x08
KeyTab Key = 0x09
KeyCtrlI Key = 0x09
KeyCtrlJ Key = 0x0A
KeyCtrlK Key = 0x0B
KeyCtrlL Key = 0x0C
KeyEnter Key = 0x0D
KeyCtrlM Key = 0x0D
KeyCtrlN Key = 0x0E
KeyCtrlO Key = 0x0F
KeyCtrlP Key = 0x10
KeyCtrlQ Key = 0x11
KeyCtrlR Key = 0x12
KeyCtrlS Key = 0x13
KeyCtrlT Key = 0x14
KeyCtrlU Key = 0x15
KeyCtrlV Key = 0x16
KeyCtrlW Key = 0x17
KeyCtrlX Key = 0x18
KeyCtrlY Key = 0x19
KeyCtrlZ Key = 0x1A
KeyEsc Key = 0x1B
KeyCtrlLsqBracket Key = 0x1B
KeyCtrl3 Key = 0x1B
KeyCtrl4 Key = 0x1C
KeyCtrlBackslash Key = 0x1C
KeyCtrl5 Key = 0x1D
KeyCtrlRsqBracket Key = 0x1D
KeyCtrl6 Key = 0x1E
KeyCtrl7 Key = 0x1F
KeyCtrlSlash Key = 0x1F
KeyCtrlUnderscore Key = 0x1F
KeySpace Key = 0x20
KeyBackspace2 Key = 0x7F
KeyCtrl8 Key = 0x7F
)
// Alt modifier constant, see Event.Mod field and SetInputMode function.
const (
ModAlt Modifier = 0x01
)
// Cell colors, you can combine a color with multiple attributes using bitwise
// OR ('|').
const (
ColorDefault Attribute = iota
ColorBlack
ColorRed
ColorGreen
ColorYellow
ColorBlue
ColorMagenta
ColorCyan
ColorWhite
)
// Cell attributes, it is possible to use multiple attributes by combining them
// using bitwise OR ('|'). Although, colors cannot be combined. But you can
// combine attributes and a single color.
//
// It's worth mentioning that some platforms don't support certain attibutes.
// For example windows console doesn't support AttrUnderline. And on some
// terminals applying AttrBold to background may result in blinking text. Use
// them with caution and test your code on various terminals.
const (
AttrBold Attribute = 1 << (iota + 8)
AttrUnderline
AttrReverse
)
// Input mode. See SetInputMode function.
const (
InputEsc InputMode = 1 << iota
InputAlt
InputMouse
InputCurrent InputMode = 0
)
// Event type. See Event.Type field.
const (
EventKey EventType = iota
EventResize
EventMouse
EventError
)
// used to construct palettes from 24-bit RGB values
type RGB struct{ R, G, B byte }
// a preconfigured palette corresponding to XTERM's defaults
var Palette256 []RGB