| author | Claus Gittinger <cg@exept.de> |
| Wed, 05 May 1999 16:31:47 +0200 | |
| changeset 1356 | 68b9f4468961 |
| parent 1353 | fbac065072ce |
| child 1362 | 178613e27d74 |
| permissions | -rw-r--r-- |
| 914 | 1 |
TerminalView subclass:#VT52TerminalView |
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instanceVariableNames:'param1 param2' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Views-TerminalViews' |
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! |
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||
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!VT52TerminalView class methodsFor:'documentation'! |
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documentation |
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" |
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VT52 terminal |
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[start with:] |
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VT52TerminalView openShell |
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" |
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||
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! ! |
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!VT52TerminalView methodsFor:'defaults'! |
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vt52KeyCodes |
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^ IdentityDictionary withKeysAndValues: |
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#( |
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#CursorUp '\eA' |
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#CursorDown '\eB' |
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#CursorRight '\eC' |
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#CursorLeft '\eD' |
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#Home '\eH' |
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#Escape '\e' |
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#BackSpace '\b' |
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#Return '\r' |
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#Delete '\0177' |
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#Tab '\t' |
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) |
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"Modified: / 5.5.1999 / 15:01:37 / cg" |
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! ! |
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||
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!VT52TerminalView methodsFor:'events'! |
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defineWindowSize |
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super defineWindowSize. |
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rangeEndLine := numberOfLines |
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"Created: / 13.6.1998 / 18:15:43 / cg" |
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"Modified: / 20.6.1998 / 20:33:29 / cg" |
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! ! |
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||
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!VT52TerminalView methodsFor:'initialization'! |
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initialize |
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super initialize. |
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self endOfSequence. |
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"Modified: / 20.6.1998 / 20:34:18 / cg" |
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! |
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initializeKeyboardSequences |
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kbdSequences := (self vt52KeyCodes) |
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! ! |
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||
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!VT52TerminalView methodsFor:'processing - input'! |
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doNothing |
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self endOfSequence |
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"Created: / 12.6.1998 / 20:40:43 / cg" |
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! |
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endOfSequence |
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state := 0. |
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"Created: / 12.6.1998 / 20:39:52 / cg" |
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! |
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nextPut:char |
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"process a character (i.e. the shells output)" |
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"/ Transcript show:state; show:' '; showCR:char storeString. |
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state == #gotReturn ifTrue:[ |
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state := 0. |
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char == Character nl ifTrue:[ |
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"/ cr-nl |
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"/ stay in buffering mode. |
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super nextPut:Character cr. |
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^ self. |
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]. |
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self endEntry. |
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self cursorToBeginOfLine. |
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"/ continue in initial state |
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]. |
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||
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state == 0 ifTrue:[ |
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"/ Currently, we are in initial state. |
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"/ Decide what to do on the basis of the parameter char. |
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(char == Character esc) ifTrue:[ |
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self endEntry. |
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state := #gotESC. |
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^ self |
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]. |
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(char == Character nl) ifTrue:[ |
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self doCursorDown:1. |
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^ self endEntry. |
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]. |
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(char == Character return) ifTrue:[ |
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(rangeEndLine notNil and:[rangeEndLine ~~ numberOfLines]) ifTrue:[ |
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self endEntry. |
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self cursorToBeginOfLine. |
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] ifFalse:[ |
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state := #gotReturn. |
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]. |
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^ self. |
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]. |
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(char == Character backspace) ifTrue:[ |
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self doCursorLeft. "/ doBackspace |
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^ self endEntry. |
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]. |
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(char == Character bell) ifTrue:[ |
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self beep. |
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^ self |
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]. |
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char asciiValue < 32 ifTrue:[ |
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char ~~ Character tab ifTrue:[ |
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char asciiValue ~~ 0 ifTrue:[ |
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Transcript show:'unhandled control key: '; showCR:char storeString. |
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]. |
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^ self. |
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] |
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]. |
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^ super nextPut:char |
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]. |
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state == #gotESC ifTrue:[ |
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"/ Currently, we are in ESC state. |
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"/ Decide what to do on the basis of the parameter char. |
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char == $A ifTrue:[ |
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"/ ESC-A |
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self doCursorUp:1. |
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^ self endOfSequence |
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]. |
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char == $B ifTrue:[ |
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"/ ESC-B |
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self doCursorDown:1. |
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^ self endOfSequence |
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]. |
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char == $C ifTrue:[ |
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"/ ESC-C |
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self doCursorRight:1. |
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^ self endOfSequence |
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]. |
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char == $D ifTrue:[ |
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"/ ESC-D |
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self doCursorLeft:1. |
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^ self endOfSequence |
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]. |
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char == $H ifTrue: [ |
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"/ ESC-H |
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self doCursorHome. |
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^ self endOfSequence |
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]. |
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char == $J ifTrue: [ |
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"/ ESC-J |
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|
1001
7fe14ad43ae3
fixed clear-to-end-of-screen function.
Claus Gittinger <cg@exept.de>
parents:
998
diff
changeset
|
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self doClearToEndOfScreen. |
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^ self endOfSequence |
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]. |
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char == $K ifTrue: [ |
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"/ ESC-J |
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self doClearToEndOfLine. |
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^ self endOfSequence |
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]. |
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char == $Y ifTrue: [ |
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"/ ESC-Y - cursor positioning |
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state := #motion1. |
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^ self |
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]. |
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Transcript show:'unhandled esc-key: '; showCR:char storeString. |
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]. |
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||
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state == #motion1 ifTrue:[ |
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"/ char-value - 32 is line |
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param1 := (char asciiValue - 32). |
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state := #motion2. |
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^ self. |
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]. |
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state == #motion2 ifTrue:[ |
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"/ char-value - 32 is col |
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param2 := (char asciiValue - 32). |
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"/ Transcript show:'motion '; show:param1+1; show:' '; showCR:param2+1. |
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self cursorVisibleLine:param1+1 col:param2+1. |
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^ self endOfSequence |
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]. |
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||
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self doNothing |
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||
|
1001
7fe14ad43ae3
fixed clear-to-end-of-screen function.
Claus Gittinger <cg@exept.de>
parents:
998
diff
changeset
|
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"Modified: / 21.7.1998 / 20:06:04 / cg" |
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! ! |
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!VT52TerminalView methodsFor:'queries'! |
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terminalType |
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^ 'vt52' |
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"Created: / 10.6.1998 / 16:22:46 / cg" |
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"Modified: / 5.5.1999 / 11:22:50 / cg" |
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! ! |
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!VT52TerminalView class methodsFor:'documentation'! |
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version |
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^ '$Header: /cvs/stx/stx/libwidg2/VT52TerminalView.st,v 1.13 1999-05-05 14:31:47 cg Exp $' |
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! ! |