176 lines
2.6 KiB
Go
176 lines
2.6 KiB
Go
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// The contents of this file is free and unencumbered software released into
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// the public domain. Refer to <http://unlicense.org/> for more information.
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// Src: https://github.com/yakshaveinc/go-keycodes/blob/master/keycodes.go
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package keycodes
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import "fmt"
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type KeyCode uint8
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func (k KeyCode) String() string {
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if k == KeyUnset {
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return "unset"
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}
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return fmt.Sprintf("Key(%d)", k)
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}
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// note: similar keys have different key codes, like Enter and
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// Keypad Enter
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// cross-platform key codes, compatible with SDL 2 and USB HID speccy
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// https://hg.libsdl.org/SDL/file/default/include/SDL_scancode.h
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// http://www.usb.org/developers/hidpage/Hut1_12v2.pdf (page 53)
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// key for codes 0 - 3 are not present on keyboards, they are:
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// 0 - Reserved (no event)
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// 1 - ErrorRollOver
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// 2 - POSTFail
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// 3 - ErrorUndefined
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const (
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KeyA KeyCode = 4 + iota
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KeyB
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KeyC
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KeyD
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KeyE
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KeyF
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KeyG
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KeyH
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KeyI
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KeyJ
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KeyK
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KeyL
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KeyM
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KeyN
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KeyO
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KeyP
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KeyQ
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KeyR
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KeyS
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KeyT
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KeyU
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KeyV
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KeyW
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KeyX
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KeyY
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KeyZ
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)
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const (
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Key1 KeyCode = 30 + iota
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Key2
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Key3
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Key4
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Key5
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Key6
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Key7
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Key8
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Key9
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Key0
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)
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const (
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// choice is to use Enter name instead of Return
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// and the key code is different from Keypad Enter
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KeyEnter KeyCode = 40 + iota
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KeyEscape
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KeyBackspace
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KeyTab
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KeySpace
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// keypad minus has different key code
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KeyMinus
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KeyEquals
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KeyLeftBracket
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KeyRightBracket
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KeyBackslash
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)
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// key code number 50 is skipped, because it is unclear
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// where is the key, and what is its name and function
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const (
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// different name from SDL2 for brevity
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KeyColon KeyCode = 51 + iota
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KeyApostrophe
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// KeyTilde is an alias
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KeyGrave
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KeyCommad
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// KeyDot is an alias, keypad period is a different
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KeyPeriod
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Slash
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CapsLock
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)
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const KeyTilde = KeyGrave
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const KeyDot = KeyPeriod
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const (
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KeyF1 KeyCode = 58 + iota
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KeyF2
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KeyF3
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KeyF4
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KeyF5
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KeyF6
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KeyF7
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KeyF8
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KeyF9
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KeyF10
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KeyF11
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KeyF12
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)
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const (
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KeyPrintScreen KeyCode = 70 + iota
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KeyScrollLock
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KeyPause
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KeyInsert
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KeyHome
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KeyPageUp
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KeyDelete
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KeyEnd
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KeyPageDown
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KeyRight
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KeyLeft
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KeyDown
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KeyUp
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)
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const (
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KeyNumLock KeyCode = 83 + iota
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KeyKpDivide
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KeyKpMultiply
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KeyKpMinus
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KeyKpPlus
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KeyKpEnter
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KeyKp1
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KeyKp2
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KeyKp3
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KeyKp4
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KeyKp5
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KeyKp6
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KeyKp7
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KeyKp8
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KeyKp9
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KeyKp0
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// KeyKpDot is an alias
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KeyKpPeriod
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)
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const KeyKpDot = KeyKpPeriod
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// key code 100 is skipped, because I can not find the key
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// key code 101 is not present on Mac
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// key codes 102-223 are not present on PC
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const (
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KeyLCtrl KeyCode = 224 + iota
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KeyLShift
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KeyLAlt
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// KeyLWin is an alias
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KeyLGUI
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KeyRCtrl
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KeyRShift
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KeyRAlt
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// KeyRWin is an alias
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KeyRGUI
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)
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const KeyLWin = KeyLGUI
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const KeyRWin = KeyRGUI
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const KeyUnset = 255
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