mac-rom/Toolbox/ListMgr/IconLDEF.a
Elliot Nunn 4325cdcc78 Bring in CubeE sources
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;
; File: IconLDEF.a
;
; Contains: A List Manager procedure definition which
; creates a scrollable list of icons.
;
; Written by: Steve Horowitz & Francis Stanbach
;
; Copyright: © 1986-1992 by Apple Computer, Inc. All rights reserved.
;
; Change History (most recent first):
;
; <SM3> 11/5/92 SWC Changed PackMacs.a->Packages.a.
; <SM2> 11/3/92 SWC Replaced INCLUDEs with a LOAD of StandardEqu.d.
; <4> 1/8/91 JDR (dba) Private icon utilities are now in IconUtilsPriv.a
; <3> 9/25/90 fjs add icon suite stuff for people who pass ICN#s to the list
; (Network & Startup Panels)
; <2> 6/22/90 fjs add support for icon suites and do international truncation
; 6/21/90 fjs add icon suite support, and truncstring
; 20jun86 sad preserve txFont, txFace, txSize and txMode
; _LoadResource if ICON handle seems to have been purged
; changed a couple lsr's into asr's
; reorganize to calc rects and truncate text just once per call
; handle cells w/o strings correctly
; handle ICONs w/o masks
; 8jun87 sad set HiliteMode bit for color text hilighting
; 7nov89 fjs looks for Asyms in the Objects Folder
;
BLANKS ON
STRING ASIS
LOAD 'StandardEqu.d'
INCLUDE 'Packages.a'
include 'IconUtilsPriv.a'
; Cell Format
;cell RECORD
;cHand ds.l 1 ; Icon Handle
;cFont ds.w 1 ; font number?
;cFace ds.w 1 ; font style in low-order byte
;cSize ds.w 1 ; font size
;cName ds.b 256 ; Str255
; ENDR
cMin equ 4 ; if cell length ­ cMin it has text
; Variables
stack RECORD {a6link},decr
lsMessage ds.w 1 ; What to do?
filler ds.b 1
lsSelect ds.b 1 ; boolean
lsRectp ds.l 1 ; ptr to Rectangle
lsCell ds.l 1 ; point
lsDataOffset ds.w 1 ; offset to desired data
lsDataLen ds.w 1 ; data length
lsHandle ds.l 1 ; listHandle
return ds.l 1
a6link ds.l 1
fontinfo ds.w 4 ; font info for text font
lsWidth ds.w 1 ; width of lsRect
iconRect ds.l 2 ; Rect to draw icon in
textRect ds.l 2 ; Rect to draw text in
bitMap ds.b bitMapRec ; BitMap to draw icon with
; --- copy of cell data
text ds.b 256
textSize ds.w 1
textFace ds.w 1
textFont ds.w 1
iconHndl ds.l 1
cellCopy equ *
localsize equ *
ENDR
; IconLDEF
; d5.w - cell width
; d6.b - true iff there is text in this cell
; a3.l - ptr to copy of text (gets truncated)
; a4.l - Icon Handle
IconLDEF main export
with stack
link a6,#localsize
movem.l a3-a4/d3-d6,-(sp) ; preserve registers
cmp.w #lDrawMsg,lsMessage(a6) ; is it a draw message?
beq.s DrawIcon ; if so then draw icon
cmp.w #lHiliteMsg,lsMessage(a6) ; is it a hilite message?
beq.s DrawIcon ; if so then invert icon state
IconExit movem.l (sp)+,a3-a4/d3-d6 ; restore registers
unlk a6
move.l (sp)+,a0
lea stack-8(sp),sp
jmp (a0) ; Exit
DrawIcon cmp.w #lDrawMsg,lsMessage(a6) ; erase the cell if it is
bne.s @1 ; a draw message
move.l lsRectp(a6),-(sp) ; push cell rectangle
_EraseRect ; erase it
@1
tst.w lsDataLen(a6) ; is there any data?
bz.s IconExit ; if not, leave
; save cell width
move.l lsRectp(a6),a0
move.w right(a0),d5
sub.w left(a0),d5
; copy the cell data into our stack frame (aligning it)
move.l lsHandle(a6),a0 ; get handle to List
move.l (a0),a0 ; handle -> ptr
move.l cells(a0),a0 ; get dataHandle into a0
move.l (a0),a0 ; handle -> ptr
add.w lsDataOffset(a6),a0 ; put start of data in a0
lea cellCopy(a6),a1 ; a1 points to destination
move.l #0,d0 ; clear high word
move.w lsDataLen(a6),d0 ; number of bytes to move
_BlockMove
; calculate iconRect and textRect vertical
lea text(a6),a3 ; get ptr to copy of text
moveq #32,d4 ; vertical size of Icon
; is there text?
cmp #cMin,lsDataLen(a6)
sne d6 ; true iff there is text
beq.s @2 ; skip this if no text
; set up text Font, Face, Size and Mode
move.l GrafGlobals(a5),a0 ; get quickDraw globals ptr
move.l thePort(a0),a0 ; get thePort
move.l txFont(a0),-(sp) ; save txFace, txFont
move.l txMode(a0),-(sp) ; save txSize, txMode
move.l textFont(a6),-(sp) ; push cell text Face, Font
_TextFont
_TextFace
move.w #srcOr,-(sp) ; text transfer mode
_TextMode
move.w textSize(a6),-(sp) ; push cell text Size
_TextSize
pea fontinfo(a6) ; push ptr to fontInfo
_GetFontInfo
add.w fontinfo+leading(a6),d4
add.w fontinfo+ascent(a6),d4 ; add up height of text
add.w fontinfo+descent(a6),d4
@2
move.l lsRectp(a6),a0 ; a0 points to Rect
move.w bottom(a0),d1 ; calculates height of Rect
sub.w top(a0),d1 ; rect height in d0
sub.w d4,d1 ; subtract icon height from rect
asr.w #1,d1 ; divide d0 by 2
add.w top(a0),d1 ; add original top
move.w d1,iconRect+top(a6) ; assign rectTop
add.w #32,d1
move.w d1,iconRect+bottom(a6) ; assign rectBottom
; calculate icon Rect width
move.w d5,d0 ; get cell width
sub.w #32,d0 ; subtract icon width
asr.w #1,d0 ; divide d1 by 2
add.w left(a0),d0 ; add original left
move.w d0,iconRect+left(a6) ; assign rectLeft
add.w #32,d0
move.w d0,iconRect+right(a6) ; assign rectRight
tst.b d6 ; is there text?
bz.s @6 ; no, skip
move.w d1,textRect+top(a6)
add.w fontinfo+leading(a6),d1
add.w fontinfo+ascent(a6),d1 ; add text height
add.w fontinfo+descent(a6),d1
move.w d1,textRect+bottom(a6) ; setup bottom of text rect
; truncate text
move.w d5,d4 ; get cell width
sub.w #2,d4 ; donÕt let text touch sides of cell
moveq #0,d3 ; clear d3
move.b (a3),d3 ; get length of string
add.b #1,d3 ; initial conditions
sub.l #2,sp ; room for result of _StringWidths
@3
move.l a3,-(sp) ; push string
_StringWidth
cmp.w (sp),d4 ; is string too long? (no pop!)
bgt.s @4 ; no, continue
; if the string is too long then truncate it
subq #2,sp ; returns whether string truncated
move.w d4,-(sp) ; width
move.l a3,-(sp) ; StringPtr
move.w #smTruncMiddle,-(sp) ; truncate in the middle
_TruncString
addq #2,sp ; ignore result
move.l a3,-(sp) ; push string
_StringWidth
@4
move.w (sp)+,d3 ; pop string width into d3
; calculate textRect left and right
move.w d5,d0 ; get cell width
sub.w d3,d0 ; subtract text width
asr.w #1,d0 ; divide d0 by 2
move.l lsRectp(a6),a0 ; a0 points to listRect
add.w left(a0),d0 ; add original left
move.w d0,textRect+left(a6) ; setup left of text rect
add.w d0,d3 ; setup right of text rect
add.w #1,d3
move.w d3,textRect+right(a6)
@6
; set up bitmap for _CopyBits
move.l #0,bitmap+bounds+topLeft(a6) ; (0,0)
move.l #$00200020,bitmap+bounds+botRight(a6) ; (32,32)
move.w #4,bitmap+rowBytes(a6) ; set up rowBytes field
move.l iconHndl(a6),a4 ; get icon handle
; check to see if this is an icon suite
move.l a4,a0
_GetHandleSize
cmp #128,d0 ; if it less than 64, it is an icon suite
blt DoSuite
; ¥¥¥ start
subq #4,sp ; make space for suite handle
move.l sp,a0 ; pointer to space in a0
tst.l (a4) ; is it purged?
bnz.s @5
move.l a4,-(sp)
_LoadResource ; preserves all regs
; create the suite
@5 subq #2,sp ; make room for error
move.l a0,-(sp) ; place for suite
_NewIconSuite ; create a suite
move.w (sp)+,d0 ; error in d0
move.l (sp)+,a0 ; suite in a0
bnz.s @error ; IconExit
; add the icon
subq #2,sp ; room for error
move.l a4,-(sp) ; push the icon
move.l a0,-(sp) ; push the suite
move.l #'ICN#',-(sp) ; its a B & W Icon
move.l a0,a4 ; save the suite before the trap is called
_AddIconToSuite
move.w (sp)+,d0 ; ignore error
bsr SDrawIt ; draw the suite
; dispose the suite
subq #2,sp ; room for result
move.l a4,-(sp) ; icon suite
move.b #0,-(sp) ; do not kill ICN#
_DisposeIconSuite
addq #2,sp ; ignore
@error bra AfterSDrawit ; jump back in
InvertText
tst.b d6 ; is there text?
bz IconExit ; no, split
bclr #7,HiliteMode ; now in color! <8Jun87 sad>
pea textRect(a6) ; push enclosing rectangle
_InverRect ; invert text
TextExit
; restore text Mode, Size, Font and Face and leave
_TextMode
_TextSize
_TextFont
_TextFace
bra IconExit
; draw the text if it exists
DrawTheText
tst.b d6 ; is there text?
bz.s @1 ; no
move.w textRect+left(a6),d0
add.w #1,d0 ; donÕt touch left side of textRect
move.w d0,-(sp) ; horiz
move.w textRect+top(a6),d0
add.w fontinfo+leading(a6),d0
add.w fontinfo+ascent(a6),d0
move.w d0,-(sp) ; vert
_MoveTo
move.l a3,-(sp) ; push ptr to string
_DrawString ; draw it
@1
rts
;------------------------------
DoSuite
move.l a4,d0 ; is it there?
bz IconExit
bsr.s SDrawIt ; always draw the icon
AfterSDrawIt
cmp.w #lDrawMsg,lsMessage(a6) ; is it a draw message?
bne InvertText ; no, its a hilite message
SDoDrawMsg
bsr.s DrawTheText
tst.b lsSelect(a6) ; is it selected?
bnz InvertText ; yes
tst.b d6 ; is there text?
bz IconExit ; no, split
bra TextExit ; else, split with fonts
SDrawIt
; draw the icon with the proper transform
move.w #ttNone,d0 ; assume no transform
tst.b lsSelect(a6) ; is it selected?
bz.s @plotSuite
move.w #ttSelected,d0 ; use selected transform
@plotSuite
subq #2,sp ; return error
pea iconRect(a6) ; push the rect
move.w #0,-(sp) ; no alignment
move.w d0,-(sp) ; transform
move.l a4,-(sp) ; push the suite
_PlotIconSuite ; thanks DC
move.w (sp)+,d0 ; get and ignore the error
rts
endwith
end