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antoine-source/appleworksgs/WP/Src/Pages.aii
Antoine Vignau 5fef614692 First release
2023-03-04 03:45:20 +01:00

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load 'macros.dump'
include 'driver.equ'
include 'wp.equ'
;-----------------------------------------------
;
; Imported addresses
;
;-----------------------------------------------
IMPORT W_CalcDocRect
IMPORT W_CalcLineHeight
IMPORT W_CalcScrollVals
IMPORT W_CheckWidow
IMPORT D_Deref
IMPORT W_GetPageSize
IMPORT W_GetParRec
IMPORT W_GetTopSpace
IMPORT W_GotNewCtlVals
IMPORT lastline
IMPORT W_LastP
IMPORT W_LineToTopPixel
IMPORT W_NumPgs
IMPORT W_OverRide
IMPORT W_PaperSize
IMPORT W_ReadRulerP
IMPORT W_ScrollBar
IMPORT W_SetFullREct
IMPORT W_TopParHeight
IMPORT W_TopPg
IMPORT W_TopPgLine
IMPORT W_TopPgPar
IMPORT W_TopPgPixel
IMPORT D_UnLock
IMPORT W_ValidLines
;-----------------------------------------------
;
; Forward addresses and entries
;
;-----------------------------------------------
ENTRY W_NewNumPgs
********************************************************************
*
* includes...
*
* Wednesday, May 3, 1989 1:23:24 AM
********************************************************************
****************************************************************
* W_CalcPages
W_CalcPages PROC EXPORT
;Using WPGlobals
local CurPar:w,ParPtr:l,Page:w,Pixel:w,LineHand:l,LinePtr:l
local temp:w,line:w,lastline:w,PagePixs:w
begin
moveword #1,CurPar
sta Page
stz Pixel
lda CurPar
jsl W_GetParRec
movelong ax,ParPtr
lda Page
jsl W_GetPageSize
sta PagePixs
; this loop is for normal pars, drops into subloop for pars that cross line
addloop
moveword [ParPtr]:#W_pAttr,a
beq okpar
and #W_PgBrk
beq okpar
inc Page
lda Page
jsl W_GetPageSize
sta PagePixs
stz Pixel
brl nextpar
okpar
lda pixel
clc
ldy #W_pPixels
adc [ParPtr],y
cmp PagePixs
jcc gotnewpixel
lda curpar
jsl W_CheckWidow
bcc NoWidow
lda pixel
beq NoWidow
inc Page
lda Page
jsl W_GetPageSize
sta PagePixs
stz Pixel
brl addloop
NoWidow
pushword CurPar
jsl W_ValidLines
movelong ParPtr,ax
jsl W_ReadRulerP
movelong [ParPtr]:#W_pLineHand,LineHand
movelong LineHand,ax
jsl D_Deref
movelong ax,LinePtr
addlong #W_LineHeader,LinePtr,LinePtr
stz line
LineLoop
movelong LinePtr,ax
jsl W_CalcLineHeight
clc
adc Pixel
cmp PagePixs
bcs GotLine
sta Pixel
inc line
addlong #W_lBytes,LinePtr,LinePtr
bra LineLoop
GotLine
movelong LinePtr,ax
jsl W_CalcLineHeight
sta Pixel
inc Page
lda Page
jsl W_GetPageSize
sta PagePixs
moveword [ParPtr]:#W_pLastLine,lastline
bra EndLoop
LineLoop2
movelong LinePtr,ax
jsl W_CalcLineHeight
clc
adc Pixel
cmp PagePixs
bcs GotLine
RegPix
sta Pixel
EndLoop
inc line
addlong #W_lBytes,LinePtr,LinePtr
cmpw line,lastline
bcc LineLoop2
Linenextpar
movelong LineHand,ax
jsl D_UnLock
bra nextpar
gotnewpixel sta Pixel
nextpar inc CurPar
lda W_LastP
cmp Curpar
bcc AllDone
addlong #W_pBytes,ParPtr,ParPtr
brl addloop
AllDone
cmpw Page,W_NumPgs
beq W_AllSet
pushword Page
jsl W_NewNumPgs
W_AllSet
return
ENDP
****************************************************************
* W_NewNumPgs
W_NewNumPgs PROC EXPORT
;Using WPGlobals
input Pages:w
begin
moveword Pages,W_NumPgs
jsl W_SetFullREct
pha
pha
pha
jsl W_CalcScrollVals
pla
ply
pha
phy
pushlong W_ScrollBar
_SetCtlParams
pla
return
ENDP
****************************************************************
* W_SetTopPage
W_SetTopPage PROC EXPORT
;Using WPGlobals
local ParPtr:l,Page:w,Pixel:w,LineHand:l,LinePtr:l
local temp:w,line:w,lastline:w,StartPixel:w,PagePixs:w
local TParHt:w
begin
moveword #1,W_TopPgPar
sta Page
stz W_TopPgLine
stz W_TopParHeight
stz Pixel
lda Page
jsl W_GetPageSize
sta PagePixs
lda W_TopPgPar
jsl W_GetParRec
movelong ax,ParPtr
cmpw #1,W_TopPg
jeq AllDone
; this loop is for normal pars, drops into subloop for pars that cross line
addloop
stz W_TopPgLine
stz W_TopParHeight
moveword [ParPtr]:#W_pAttr,a
beq okpar
and #W_PgBrk
beq okpar
inc Page
lda Page
jsl W_GetPageSize
sta PagePixs
stz Pixel
brl nextpar
okpar
lda pixel
clc
ldy #W_pPixels
adc [ParPtr],y
cmp PagePixs
jcc gotnewpixel
lda W_TopPgPar
jsl W_CheckWidow
bcc NoWidow
lda pixel
beq NoWidow
inc Page
lda Page
jsl W_GetPageSize
sta PagePixs
stz Pixel
brl addloop
NoWidow
pushword W_TopPgPar
jsl W_ValidLines
movelong ParPtr,ax
jsl W_ReadRulerP
movelong [ParPtr]:#W_pLineHand,LineHand
movelong LineHand,ax
jsl D_Deref
movelong ax,LinePtr
addlong #W_LineHeader,LinePtr,LinePtr
stz line
stz TParHt
stz W_TopParHeight
LineLoop
movelong LinePtr,ax
jsl W_CalcLineHeight
tay
clc
adc Pixel
cmp PagePixs ;watch YYYYY!!!!!!
bcs GotLine
sta Pixel
addword y,TParHt,TParHt
inc line
addlong #W_lBytes,LinePtr,LinePtr
bra LineLoop
GotLine
cmpw Page,W_TopPg
bcs NoPutds
moveword line,W_TopPgLine
addword TParHt,W_TopParHeight,W_TopParHeight
NoPutds
movelong LinePtr,ax
jsl W_CalcLineHeight
sta Pixel
sta TParHt
inc Page
lda Page
jsl W_GetPageSize
sta PagePixs
moveword [ParPtr]:#W_pLastLine,lastline
bra EndLoop
LineLoop2
movelong LinePtr,ax
jsl W_CalcLineHeight
tay
clc
adc Pixel ;Watch YYY!!!!!!
cmp PagePixs
bcs GotLine
RegPix
sta Pixel
addword y,TParHt,TParHt
EndLoop
inc line
addlong #W_lBytes,LinePtr,LinePtr
cmpw line,lastline
bcc LineLoop2
Linenextpar
movelong LineHand,ax
jsl D_UnLock
bra nextpar
gotnewpixel sta Pixel
nextpar cmpw Page,W_TopPg
bcs AllDone
inc W_TopPgPar
addlong #W_pBytes,ParPtr,ParPtr
brl addloop
AllDone
moveword [ParPtr]:#W_pAttr,a
beq W_AllSet
and #W_PgBrk
beq W_AllSet
inc W_TopPgPar
W_AllSet
return
ENDP
*****************************************************************************************************
; W_PutOnScreen ( Paragraph:word, Line:word, rectptr:long )
;
; This routine is called to make sure that the line for the given paragraph is contained in the
; given rect on the screen. If it is then just return; else move things around so top pixel of line
; is assured to be on screen in the given rect.
;
; Note: if the override flag is set then will redo lines anyway.
W_PutOnScreen PROC EXPORT
;Using WPGlobals
input par:w,line:w,rectptr:l
local CurPar:w,ParPtr:l,Page:w,Pixel:w,LineHand:l,LinePtr:l
local temp:w,Curline:w,lastline:w,PagePixs:w,rect:r,AddTemp:w
local OldPage:l,ScreenSize:w,LastPage:w,LastPixel:w,PageMod:w
error didsome
begin
stz didsome
; Get current document rect. If rectptr is NIL then point to current document rect instead.
call W_CalcDocRect,in=(!rect:l)
cpzl rectptr
bne gettoppix
moveword !rect,rectptr
; Get pixel before the given line in A-reg and height of line in X-reg. If line starts before top
; of screen, or the override flag is set, or pixel above the line is before the top of the specified
; rect then proceed. Else add height of line to get top pixel for next line. If top pixel of next
; line is within rect then exit.
;
; Note: what this is really doing is determining whether the given line is fully contained within
; the specified rect. If so nothing needs to be updated (unless the overide flag has been set).
gettoppix call W_LineToTopPixel,in=(par:w,line:w),out=(a:w,x:w)
bmi GoOn
ldy W_OverRide
bne GoOn
cmpw a,[rectptr]
bcc GoOn
phx
clc
adc 1,s
plx
inc a
cmpw a,[rectptr]:#4
jcc exit
; Line was not contained in the given rect (or overide set). Remember current top page. Initialize
; local variables to start @ page 1, paragraph 1, pixel offset 0. Get pointer to paragraph and size
; of page in pixels.
GoOn movelong W_TopPg,OldPage
moveword #1,CurPar
sta Page
stz Pixel
rcall W_GetParRec,in=(CurPar:a),out=(ParPtr:ax)
rcall W_GetPageSize,in=(Page:a),out=(PagePixs:a)
; this loop is for normal pars, drops into subloop for pars that cross line
; Set last page and pixel counts. If current paragraph is a page break then bump page count and set
; page modified flag. ( to say page break was found ) Get new page size and clear the pixel count.
addloop stz PageMod
moveword pixel,LastPixel
moveword page,LastPage
cmpw [ParPtr]:#W_pAttr,#W_PgBrk
bne okpar
inc PageMod
inc Page
rcall W_GetPageSize,in=(Page:a),out=(PagePixs:a)
stz Pixel
brl nextpar
; Add current paragraph's pixel height to current pixel offset to see if paragraph is fully
; contained on the page. If so branch.
okpar lda pixel
clc
ldy #W_pPixels
adc [ParPtr],y
cmp PagePixs
jcc gotnewpixel
; Paragraph goes over page bounds. Check if paragraph has paragraph lock flag on (widow flag). If it
; is a locked paragraph go to next if not already at top of page.
rcall W_CheckWidow,in=(curpar:a)
bcc NoWidow
lda pixel
beq NoWidow
inc Page
rcall W_GetPageSize,in=(Page:a),out=(PagePixs:a)
stz Pixel
brl addloop
NoWidow call W_ValidLines,in=(curpar:w)
movelong ParPtr,ax
jsl W_ReadRulerP
movelong [ParPtr]:#W_pLineHand,LineHand
movelong LineHand,ax
jsl D_Deref
movelong ax,LinePtr
addlong #W_LineHeader,LinePtr,LinePtr
stz CurLine
LineLoop
movelong LinePtr,ax
jsl W_CalcLineHeight
clc
adc Pixel
cmp PagePixs
bcs GotLine
sta Pixel
inc CurLine
addlong #W_lBytes,LinePtr,LinePtr
bra LineLoop
GotLine
movelong LinePtr,ax
jsl W_CalcLineHeight
sta Pixel
inc Page
lda Page
jsl W_GetPageSize
sta PagePixs
moveword [ParPtr]:#W_pLastLine,lastline
bra EndLoop
LineLoop2
movelong LinePtr,ax
jsl W_CalcLineHeight
clc
adc Pixel
cmp PagePixs
bcs GotLine
RegPix
sta Pixel
EndLoop
inc CurLine
addlong #W_lBytes,LinePtr,LinePtr
cmpw CurLine,lastline
bcc LineLoop2
; Unlock the line handle and go to next paragraph.
linenextpar rcall D_Unlock,in=(LineHand:ax)
bra nextpar
; Save new pixel position and fall through to next paragraph.
gotnewpixel sta Pixel
; Increment current paragraph count. If we have passed the paragraph we are trying to put on screen
; then branch; else bump paragraph pointer to next paragraph and go back for more.
nextpar inc curpar
cmpw par,curpar
bcc gotpar
addwl #W_pBytes,parptr
brl addloop
gotpar dec CurPar
moveword LastPage,page
moveword LastPixel,pixel
pushword CurPar
jsl W_ValidLines
movelong ParPtr,ax
jsl W_ReadRulerP
movelong [ParPtr]:#W_pLineHand,LineHand
movelong LineHand,ax
jsl D_Deref
movelong ax,LinePtr
addlong #W_LineHeader,LinePtr,LinePtr
stz CurLine
LLineLoop
movelong LinePtr,ax
jsl W_CalcLineHeight
clc
adc Pixel
sta Pixel
cmp PagePixs
bcs IsPPage
sta Pixel
W_NextLine
inc CurLine
cmpw line,CurLine
jcc DoneLines
addlong #W_lBytes,LinePtr,LinePtr
bra LLineLoop
IsPPage
movelong LinePtr,ax
jsl W_CalcLineHeight
sta Pixel
inc Page
lda Page
jsl W_GetPageSize
sta PagePixs
bra W_NextLine
DoneLines
movelong LineHand,ax
jsl D_UnLock
lda PageMod
jne exit
lda Page
sta W_TopPg
jsl W_GetTopSpace
clc
adc pixel
sta pixel
subword rect+4,rect,ScreenSize
;W_TopPgPixel = pixel - (([rectptr]-rect) + (([rectptr]:#4-[rectptr])/2))
subword [rectptr]:#4,[rectptr],a
lsr a
addword a,[rectptr],a
subword a,rect,a
sta AddTemp
lda pixel
sec
sbc AddTemp
bpl GotTPPix
clc
adc W_PaperSize
dec W_TopPg
ldy W_TopPg
bne GotTPPix
inc W_TopPg
lda #0
GotTPPix sta W_TopPgPixel
cmpw W_TopPg,W_NumPgs
bne W_AllSet
addword W_TopPgPixel,screensize,a
cmp W_PaperSize
bcc W_AllSet
subword W_PaperSize,screensize,W_TopPgPixel
W_AllSet
inc DidSome
jsl W_SetFullREct
pha
pha
pha
jsl W_CalcScrollVals
pla
pla
pushlong W_ScrollBar
_SetCtlValue
pushlong OldPage
jsl W_GotNewCtlVals
exit return
ENDP
END
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