mirror of
https://github.com/elliotnunn/mac-rom.git
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380 lines
9.8 KiB
Plaintext
380 lines
9.8 KiB
Plaintext
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; File: IconLDEF.a
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;
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; Contains: A List Manager procedure definition which
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; creates a scrollable list of icons.
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;
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; Written by: Steve Horowitz & Francis Stanbach
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;
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; Copyright: <09> 1986-1992 by Apple Computer, Inc. All rights reserved.
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;
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; Change History (most recent first):
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;
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; <SM3> 11/5/92 SWC Changed PackMacs.a->Packages.a.
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; <SM2> 11/3/92 SWC Replaced INCLUDEs with a LOAD of StandardEqu.d.
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; <4> 1/8/91 JDR (dba) Private icon utilities are now in IconUtilsPriv.a
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; <3> 9/25/90 fjs add icon suite stuff for people who pass ICN#s to the list
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; (Network & Startup Panels)
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; <2> 6/22/90 fjs add support for icon suites and do international truncation
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; 6/21/90 fjs add icon suite support, and truncstring
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; 20jun86 sad preserve txFont, txFace, txSize and txMode
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; _LoadResource if ICON handle seems to have been purged
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; changed a couple lsr's into asr's
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; reorganize to calc rects and truncate text just once per call
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; handle cells w/o strings correctly
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; handle ICONs w/o masks
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; 8jun87 sad set HiliteMode bit for color text hilighting
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; 7nov89 fjs looks for Asyms in the Objects Folder
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;
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BLANKS ON
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STRING ASIS
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LOAD 'StandardEqu.d'
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INCLUDE 'Packages.a'
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include 'IconUtilsPriv.a'
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; Cell Format
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;cell RECORD
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;cHand ds.l 1 ; Icon Handle
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;cFont ds.w 1 ; font number?
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;cFace ds.w 1 ; font style in low-order byte
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;cSize ds.w 1 ; font size
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;cName ds.b 256 ; Str255
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; ENDR
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cMin equ 4 ; if cell length <20> cMin it has text
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; Variables
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stack RECORD {a6link},decr
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lsMessage ds.w 1 ; What to do?
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filler ds.b 1
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lsSelect ds.b 1 ; boolean
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lsRectp ds.l 1 ; ptr to Rectangle
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lsCell ds.l 1 ; point
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lsDataOffset ds.w 1 ; offset to desired data
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lsDataLen ds.w 1 ; data length
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lsHandle ds.l 1 ; listHandle
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return ds.l 1
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a6link ds.l 1
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fontinfo ds.w 4 ; font info for text font
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lsWidth ds.w 1 ; width of lsRect
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iconRect ds.l 2 ; Rect to draw icon in
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textRect ds.l 2 ; Rect to draw text in
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bitMap ds.b bitMapRec ; BitMap to draw icon with
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; --- copy of cell data
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text ds.b 256
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textSize ds.w 1
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textFace ds.w 1
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textFont ds.w 1
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iconHndl ds.l 1
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cellCopy equ *
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localsize equ *
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ENDR
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; IconLDEF
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; d5.w - cell width
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; d6.b - true iff there is text in this cell
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; a3.l - ptr to copy of text (gets truncated)
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; a4.l - Icon Handle
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IconLDEF main export
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with stack
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link a6,#localsize
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movem.l a3-a4/d3-d6,-(sp) ; preserve registers
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cmp.w #lDrawMsg,lsMessage(a6) ; is it a draw message?
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beq.s DrawIcon ; if so then draw icon
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cmp.w #lHiliteMsg,lsMessage(a6) ; is it a hilite message?
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beq.s DrawIcon ; if so then invert icon state
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IconExit movem.l (sp)+,a3-a4/d3-d6 ; restore registers
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unlk a6
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move.l (sp)+,a0
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lea stack-8(sp),sp
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jmp (a0) ; Exit
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DrawIcon cmp.w #lDrawMsg,lsMessage(a6) ; erase the cell if it is
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bne.s @1 ; a draw message
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move.l lsRectp(a6),-(sp) ; push cell rectangle
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_EraseRect ; erase it
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@1
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tst.w lsDataLen(a6) ; is there any data?
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bz.s IconExit ; if not, leave
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; save cell width
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move.l lsRectp(a6),a0
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move.w right(a0),d5
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sub.w left(a0),d5
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; copy the cell data into our stack frame (aligning it)
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move.l lsHandle(a6),a0 ; get handle to List
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move.l (a0),a0 ; handle -> ptr
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move.l cells(a0),a0 ; get dataHandle into a0
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move.l (a0),a0 ; handle -> ptr
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add.w lsDataOffset(a6),a0 ; put start of data in a0
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lea cellCopy(a6),a1 ; a1 points to destination
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move.l #0,d0 ; clear high word
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move.w lsDataLen(a6),d0 ; number of bytes to move
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_BlockMove
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; calculate iconRect and textRect vertical
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lea text(a6),a3 ; get ptr to copy of text
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moveq #32,d4 ; vertical size of Icon
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; is there text?
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cmp #cMin,lsDataLen(a6)
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sne d6 ; true iff there is text
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beq.s @2 ; skip this if no text
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; set up text Font, Face, Size and Mode
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move.l GrafGlobals(a5),a0 ; get quickDraw globals ptr
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move.l thePort(a0),a0 ; get thePort
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move.l txFont(a0),-(sp) ; save txFace, txFont
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move.l txMode(a0),-(sp) ; save txSize, txMode
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move.l textFont(a6),-(sp) ; push cell text Face, Font
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_TextFont
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_TextFace
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move.w #srcOr,-(sp) ; text transfer mode
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_TextMode
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move.w textSize(a6),-(sp) ; push cell text Size
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_TextSize
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pea fontinfo(a6) ; push ptr to fontInfo
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_GetFontInfo
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add.w fontinfo+leading(a6),d4
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add.w fontinfo+ascent(a6),d4 ; add up height of text
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add.w fontinfo+descent(a6),d4
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@2
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move.l lsRectp(a6),a0 ; a0 points to Rect
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move.w bottom(a0),d1 ; calculates height of Rect
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sub.w top(a0),d1 ; rect height in d0
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sub.w d4,d1 ; subtract icon height from rect
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asr.w #1,d1 ; divide d0 by 2
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add.w top(a0),d1 ; add original top
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move.w d1,iconRect+top(a6) ; assign rectTop
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add.w #32,d1
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move.w d1,iconRect+bottom(a6) ; assign rectBottom
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; calculate icon Rect width
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move.w d5,d0 ; get cell width
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sub.w #32,d0 ; subtract icon width
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asr.w #1,d0 ; divide d1 by 2
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add.w left(a0),d0 ; add original left
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move.w d0,iconRect+left(a6) ; assign rectLeft
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add.w #32,d0
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move.w d0,iconRect+right(a6) ; assign rectRight
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tst.b d6 ; is there text?
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bz.s @6 ; no, skip
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move.w d1,textRect+top(a6)
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add.w fontinfo+leading(a6),d1
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add.w fontinfo+ascent(a6),d1 ; add text height
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add.w fontinfo+descent(a6),d1
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move.w d1,textRect+bottom(a6) ; setup bottom of text rect
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; truncate text
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move.w d5,d4 ; get cell width
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sub.w #2,d4 ; don<6F>t let text touch sides of cell
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moveq #0,d3 ; clear d3
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move.b (a3),d3 ; get length of string
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add.b #1,d3 ; initial conditions
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sub.l #2,sp ; room for result of _StringWidths
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@3
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move.l a3,-(sp) ; push string
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_StringWidth
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cmp.w (sp),d4 ; is string too long? (no pop!)
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bgt.s @4 ; no, continue
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; if the string is too long then truncate it
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subq #2,sp ; returns whether string truncated
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move.w d4,-(sp) ; width
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move.l a3,-(sp) ; StringPtr
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move.w #smTruncMiddle,-(sp) ; truncate in the middle
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_TruncString
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addq #2,sp ; ignore result
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move.l a3,-(sp) ; push string
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_StringWidth
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@4
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move.w (sp)+,d3 ; pop string width into d3
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; calculate textRect left and right
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move.w d5,d0 ; get cell width
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sub.w d3,d0 ; subtract text width
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asr.w #1,d0 ; divide d0 by 2
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move.l lsRectp(a6),a0 ; a0 points to listRect
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add.w left(a0),d0 ; add original left
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move.w d0,textRect+left(a6) ; setup left of text rect
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add.w d0,d3 ; setup right of text rect
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add.w #1,d3
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move.w d3,textRect+right(a6)
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@6
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; set up bitmap for _CopyBits
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move.l #0,bitmap+bounds+topLeft(a6) ; (0,0)
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move.l #$00200020,bitmap+bounds+botRight(a6) ; (32,32)
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move.w #4,bitmap+rowBytes(a6) ; set up rowBytes field
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move.l iconHndl(a6),a4 ; get icon handle
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; check to see if this is an icon suite
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move.l a4,a0
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_GetHandleSize
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cmp #128,d0 ; if it less than 64, it is an icon suite
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blt DoSuite
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; <20><><EFBFBD> start
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subq #4,sp ; make space for suite handle
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move.l sp,a0 ; pointer to space in a0
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tst.l (a4) ; is it purged?
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bnz.s @5
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move.l a4,-(sp)
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_LoadResource ; preserves all regs
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; create the suite
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@5 subq #2,sp ; make room for error
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move.l a0,-(sp) ; place for suite
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_NewIconSuite ; create a suite
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move.w (sp)+,d0 ; error in d0
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move.l (sp)+,a0 ; suite in a0
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bnz.s @error ; IconExit
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; add the icon
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subq #2,sp ; room for error
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move.l a4,-(sp) ; push the icon
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move.l a0,-(sp) ; push the suite
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move.l #'ICN#',-(sp) ; its a B & W Icon
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move.l a0,a4 ; save the suite before the trap is called
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_AddIconToSuite
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move.w (sp)+,d0 ; ignore error
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bsr SDrawIt ; draw the suite
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; dispose the suite
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subq #2,sp ; room for result
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move.l a4,-(sp) ; icon suite
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move.b #0,-(sp) ; do not kill ICN#
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_DisposeIconSuite
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addq #2,sp ; ignore
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@error bra AfterSDrawit ; jump back in
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InvertText
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tst.b d6 ; is there text?
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bz IconExit ; no, split
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bclr #7,HiliteMode ; now in color! <8Jun87 sad>
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pea textRect(a6) ; push enclosing rectangle
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_InverRect ; invert text
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TextExit
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; restore text Mode, Size, Font and Face and leave
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_TextMode
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_TextSize
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_TextFont
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_TextFace
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bra IconExit
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; draw the text if it exists
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DrawTheText
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tst.b d6 ; is there text?
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bz.s @1 ; no
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move.w textRect+left(a6),d0
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add.w #1,d0 ; don<6F>t touch left side of textRect
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move.w d0,-(sp) ; horiz
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move.w textRect+top(a6),d0
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add.w fontinfo+leading(a6),d0
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add.w fontinfo+ascent(a6),d0
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move.w d0,-(sp) ; vert
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_MoveTo
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move.l a3,-(sp) ; push ptr to string
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_DrawString ; draw it
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@1
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rts
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;------------------------------
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DoSuite
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move.l a4,d0 ; is it there?
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bz IconExit
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bsr.s SDrawIt ; always draw the icon
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AfterSDrawIt
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cmp.w #lDrawMsg,lsMessage(a6) ; is it a draw message?
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bne InvertText ; no, its a hilite message
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SDoDrawMsg
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bsr.s DrawTheText
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tst.b lsSelect(a6) ; is it selected?
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bnz InvertText ; yes
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tst.b d6 ; is there text?
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bz IconExit ; no, split
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bra TextExit ; else, split with fonts
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|||
|
|
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
|
|||
|
|
|