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A2osX/BIN/EDIT.S.SCRN.txt
Rémy GIBERT abfd50a7d4 Kernel 0.94
2020-07-27 16:09:19 +02:00

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NEW
AUTO 3,1
.LIST OFF
*--------------------------------------
SCRN.Init >PUSHW L.SEQ.INIT
>LDA.G ScreenH
dec
>PUSHA
>PUSHBI 1
>SYSCALL PrintF
bcs SCRN.Init.9
jsr SCRN.Home
SCRN.Repaint lda #$ff
>STA.G bUpdateTop
>STA.G bUpdateStatus
jsr SCRN.UpdateTopBar
bcs SCRN.Init.9
jsr SCRN.GotoCurXCurY
bcs SCRN.Init.9
jmp SCRN.UpdateMainAndStatus
SCRN.Init.9 rts
*--------------------------------------
SCRN.Home lda #0
ldy #FileX Zero FileXY,ScreenXY & CurXY
.1 sta (pData),y
iny
cpy #CurY+1
bne .1
rts
*--------------------------------------
SCRN.ResetScrollRgn
>PUSHW L.SEQ.SCROLLRGN
>LDA.G ScreenH
dec
>PUSHA
>PUSHBI 1
>SYSCALL PrintF
rts
*--------------------------------------
SCRN.UnSaved >LDA.G bUnSaved
bne SCRN.UpdateTopBar.8
dec
sta (pData),y
*--------------------------------------
SCRN.UpdateTopBar
>LDA.G bUpdateTop
bmi SCRN.UpdateTopBar.1
SCRN.UpdateTopBar.8
clc
rts
SCRN.UpdateTopBar.1
lda #0
sta (pData),y
jsr SCRN.LineBufInitBar
ldx #SEQ.CURSAVE-SEQS
jsr SCRN.SEQS.ToLineBuf
ldy #1
jsr SCRN.LineBufGotoLineY
bcs .9
>LDA.G ScreenW
tax
lda #C.SPACE
.1 jsr SCRN.ToLineBuf
dex
bne .1
lda #C.CR
jsr SCRN.ToLineBuf
>PUSHW LineBufPtr
>PUSHW L.MSG.TOPBAR
>PUSHB #K.VER
>PUSHB /K.VER
>LDA.G hFileName
>SYSCALL GetMemPtr
>PUSHYA
>LDA.G FileType
tax
>PUSHW L.MSG.FILETYPES,x
>PUSHBI 6
jsr SCRN.LineBufSprintf
bcs .9
>LDA.G bUnSaved
beq .2
lda #'!'
jsr SCRN.ToLineBuf
.2 ldx #SEQ.CURRESTORE-SEQS
jsr SCRN.SEQS.ToLineBuf
jmp SCRN.LineBufOut
.8 clc
.9 rts
*--------------------------------------
SCRN.UpdateViewPort
stz bRepaint
.1 >LDA.G FileX
>CMP.G ScreenX
bcs .2 out of left border ?
>DEC.G ScreenX yes
sec
ror bRepaint
bra .1
.2 bit bRepaint
bmi .30
.21 >LDA.G ScreenX
clc
>ADC.G ScreenW
dec
>CMP.G FileX
bcs .3 out of right border ?
>INC.G ScreenX
sec
ror bRepaint
bra .21
.3 bit bRepaint
.30 bmi .6
.31 >LDA.G FileY+1
tax
dey
lda (pData),y A,X = FileY
>CMP.G ScreenY
iny
txa
sbc (pData),y
bcs .4 out of top border ?
>DECW.G ScreenY move viewport up one line....
bit bRepaint
bmi .31 skip scroll, will be repainted later
jsr SCRN.scrollDn ...and move content one line down
bcc .31
rts
.4 bit bRepaint
bmi .6
.41 >LDA.G ScreenY+1
tax
dey
lda (pData),y
clc
>ADC.G ViewPortHm1
bcc .5
inx
.5 >CMP.G FileY A,X = screen bottom
txa
iny FileY > screen bottom ?
sbc (pData),y
bcs .6 CS : fileY>= screen bottom
>INCW.G ScreenY move viewport down one line....
bit bRepaint
bmi .41
jsr SCRN.scrollUp ...and move content one line up
bcc .41
.9 rts
.6 >LDA.G FileX
sec
>SBC.G ScreenX
>STA.G CurX
>LDA.G FileY
sec
>SBC.G ScreenY
>STA.G CurY
jsr BUF.ComputeCOffset
jsr SCRN.GotoCurXCurY
bit bRepaint
bmi SCRN.UpdateMain
jmp SCRN.UpdateStatusBar
*--------------------------------------
SCRN.UpdateMainAndStatus
jsr SCRN.UpdateStatusBar
*--------------------------------------
SCRN.UpdateMain >LDA.G ScreenY
sta TmpIndex
iny
lda (pData),y
sta TmpIndex+1
stz TmpByte
>LDA.G ViewPortH
bra SCRN.UpdateMain.1
SCRN.UpdateLast >LDA.G ViewPortHm1
sta TmpByte
clc
>ADC.G ScreenY
sta TmpIndex
iny
lda (pData),y
adc #0
sta TmpIndex+1
lda #1
SCRN.UpdateMain.1
sta TmpCount
.1 lda TmpIndex
ldx TmpIndex+1
jsr BUF.GetLineAX Y = line length
bcs .5
lda TmpByte
jsr SCRN.UpdateLineAtALenY
bcs SCRN.UpdateMain.9
.3 inc TmpByte
inc TmpIndex
bne .4
inc TmpIndex+1
.4 dec TmpCount
bne .1
bra .8
.5 ldx #0
ldy TmpByte
jsr SCRN.GotoXY
bcs SCRN.UpdateMain.9
>PUSHW L.SEQ.CEOL
>PUSHBI 0
>SYSCALL PrintF
bcs SCRN.UpdateMain.9
inc TmpByte
dec TmpCount
bne .5
.8 jsr BUF.ComputeCOffset
jmp SCRN.GotoCurXCurY
SCRN.UpdateMain.9
rts
*--------------------------------------
SCRN.UpdateCurrentEOL
jsr SCRN.LineBufInitEdit
bra SCRN.UpdateLineAtBufPtr
*--------------------------------------
SCRN.UpdateCurrentLine
>LDA.G ScreenY+1
tax
dey
lda (pData),y
clc
>ADC.G CurY
bcc .1
inx
.1 jsr BUF.GetLineAX
bcc .2
jsr SCRN.LineBufInitEdit
jmp SCRN.UpdateLineAtBufPtr.EOL
.2 phy
>LDA.G CurY
ply
*--------------------------------------
* A = Target Screen Y position
* BufPtr = Text line start, Y = len
*--------------------------------------
SCRN.UpdateLineAtALenY
sty TmpLen
inc
inc
sta TmpLen+1
jsr SCRN.LineBufInitEdit
ldy TmpLen+1
jsr SCRN.LineBufGotoLineY
>LDA.G ScreenX
cmp TmpLen
bcs SCRN.UpdateLineAtBufPtr.EOL
tay
clc
adc BUF.LOffset
sta BUF.COffset
lda #0
adc BUF.LOffset+1
sta BUF.COffset+1
tya
* clc
adc BufPtr
sta BufPtr
bcc .2
inc BufPtr+1
.2
SCRN.UpdateLineAtBufPtr
>LDA.G ScreenW
tax
stz bSelected
.2 lda (BufPtr)
beq .8
cmp #C.CR
beq .8
jsr BUF.CheckSelected
eor bSelected
bpl .5
jsr SCRN.ToggleSel
.5 lda (BufPtr)
cmp #'\'
beq .50
cmp #'%'
bne .51
.50 pha
lda #'\'
jsr SCRN.ToLineBuf
pla
.51 jsr SCRN.ToLineBuf
inc BufPtr
bne .6
inc BufPtr+1
.6 inc BUF.COffset
bne .7
inc BUF.COffset+1
.7 dex
bne .2
.8 bit bSelected
bpl SCRN.UpdateLineAtBufPtr.EOL
jsr SCRN.ToggleSel
SCRN.UpdateLineAtBufPtr.EOL
ldx #SEQ.CEOL-SEQS
jsr SCRN.SEQS.ToLineBuf
jmp SCRN.LineBufOut
*--------------------------------------
SCRN.ToggleSel ldy #SEQ.NORM-SEQS
lda bSelected
eor #$ff
sta bSelected
bpl .1
ldy #SEQ.INV-SEQS
.1 lda SEQS,y
beq .8
jsr SCRN.ToLineBuf
iny
bra .1
.8
SCRN.ToggleSel.RTS
clc
rts
*--------------------------------------
SCRN.UpdateStatusBar
>LDA.G bUpdateStatus
bpl SCRN.ToggleSel.RTS
lda #0
sta (pData),y
jsr SCRN.ResetStatusBar
>PUSHW LineBufPtr
>PUSHW L.MSG.STATUSBAR
>PUSHW FileLen
>PUSHW BUF.COffset
>LDA.G FileX
inc
>PUSHA
>LDA.G FileY
tax
iny
lda (pData),y
inx
bne .2
inc
.2 >PUSHA
txa
>PUSHA
>PUSHBI 7
jsr SCRN.LineBufSprintf
bcs .9
ldx #SEQ.CURRESTORE-SEQS
jsr SCRN.SEQS.ToLineBuf
jmp SCRN.LineBufOut
.8 clc
.9 rts
*--------------------------------------
SCRN.ResetStatusBar
jsr SCRN.LineBufInitBar
ldx #SEQ.CURSAVE-SEQS
jsr SCRN.SEQS.ToLineBuf
>LDA.G ScreenH
tay
jsr SCRN.LineBufGotoLineY
>LDA.G ScreenW
tax
lda #C.SPACE
.1 jsr SCRN.ToLineBuf
dex
bne .1
lda #C.CR
jmp SCRN.ToLineBuf
*--------------------------------------
SCRN.CursorAdjust
.1 jsr BUF.ComputeCOffset
bcc .8
>DECW.G FileY
>STZ.G FileX
bra .1
.8 rts
*--------------------------------------
SCRN.GotoCurXCurY
ldy #CurX
lda (pData),y
tax
ldy #CurY
lda (pData),y
tay
SCRN.GotoXY >PUSHW L.MSG.GOTOXY
tya
inc
inc
>PUSHA
txa
inc
>PUSHA
>PUSHBI 2
>SYSCALL PrintF
rts
*--------------------------------------
SCRN.scrollUp >PUSHW L.SEQ.SCROLLUP
>PUSHBI 0
>SYSCALL PrintF
bcs .9
>LDA.G ScreenY+1
tax
dey
lda (pData),y
* clc
>ADC.G ViewPortHm1
bcc .1
inx
.1 jsr BUF.GetLineAX
bcs .9
phy
>LDA.G ViewPortHm1
ply
jmp SCRN.UpdateLineAtALenY
.9 rts
*--------------------------------------
SCRN.scrollDn >PUSHW L.SEQ.SCROLLDN
>PUSHBI 0
>SYSCALL PrintF
bcs .9
>LDA.G ScreenY+1
tax
dey
lda (pData),y
jsr BUF.GetLineAX
bcs .9
lda #0
jsr SCRN.UpdateLineAtALenY
.9 rts
*--------------------------------------
SCRN.LineBufInitBar
phx
ldx #SEQ.BAR-SEQS
bra SCRN.LineBufInit
SCRN.LineBufInitDLG
phx
ldx #SEQ.DLG-SEQS
bra SCRN.LineBufInit
SCRN.LineBufInitLBL
phx
ldx #SEQ.DLG.LBL-SEQS
bra SCRN.LineBufInit
SCRN.LineBufInitTB
phx
ldx #SEQ.DLG.TB-SEQS
bra SCRN.LineBufInit
SCRN.LineBufInitBut
phx
ldx #SEQ.DLG.BUT-SEQS
bra SCRN.LineBufInit
SCRN.LineBufInitEdit
phx
ldx #SEQ.EDIT-SEQS
SCRN.LineBufInit
>LDYA.G LineBufBase
>STYA LineBufPtr
jsr SCRN.SEQS.ToLineBuf
plx
rts
*--------------------------------------
SCRN.SEQS.ToLineBuf
lda SEQS,x
.1 jsr SCRN.ToLineBuf
inx
lda SEQS,x
bne .1
rts
*--------------------------------------
SCRN.LineBufGotoLineY
>PUSHW LineBufPtr
>PUSHW L.MSG.GOTOXY
tya
>PUSHA
>PUSHBI 1
>PUSHBI 2
*--------------------------------------
SCRN.LineBufSprintf
>SYSCALL SPrintF
bcs .9
tya
clc
adc LineBufPtr
sta LineBufPtr
bcc .9
inc LineBufPtr+1
clc
.9 rts
*--------------------------------------
SCRN.ToLineBuf sta (LineBufPtr)
inc LineBufPtr
bne .8
inc LineBufPtr+1
.8 rts
*--------------------------------------
SCRN.LineBufOut lda #0
sta (LineBufPtr)
>PUSHW.G LineBufBase
>PUSHBI 0
>SYSCALL PrintF
rts
*--------------------------------------
MAN
SAVE usr/src/bin/edit.s.scrn
LOAD usr/src/bin/edit.s
ASM
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