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mac-rom/Toolbox/ControlMgr/ControlMgrPatches.a

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Bring in CubeE sources Resource forks are included only for .rsrc files. These are DeRezzed into their data fork. 'ckid' resources, from the Projector VCS, are not included. The Tools directory, containing mostly junk, is also excluded.
2017-09-17 09:09:04 +00:00
;
; File: ControlMgrPatches.a
;
; Contains: linked patches to the Control Mgr.
;
; Copyright: <09> 1989-1990, 1992 by Apple Computer, Inc., all rights reserved.
;
; Change History (most recent first):
;
; <9> 7/1/92 JSM Fix bug in one of the changes I made for TheFuture in the last
; revision, add comments about IIci patches that have been rolled
; into ControlMgr.a: FixNewControl32Bit,
; PatchDisposeControlForInvisibleControlsIIci,
; PatchDisposeControlForCorrectLayer, CheckMemErrInSetCTitle, and
; ThrottleScrollingSpeed.
; <8> 6/30/92 JSM Move patch on _TrackControl for scroll speed throttling here
; from ScrollSpeedFix.a, add a MakeInstall for TheFuture to
; allocate globals in ExpandMem for this patch.
; <7> 4/22/92 pvh Fix bug so that the right layer is switched in when we're
; disposing of a control (_DisposeControl patch). Added new patch
; to swap in the correct layer before calling real
; _DisposeControl.
; <6> 1/18/91 VL <jsm> DrawThumbOutline should check whether it is coming from
; DragControl also. Otherwise, we may be accessing bogus
; ControlRecord.
; <5> 1/13/91 VL <dba> Added a patch to FrameRect to draw a solid outline when
; dragging the thumb in 7.0 scroll bar (CDEF 1).
; <4> 11/8/90 dba & gbm; move patch that does a system error if we can<61>t load a
; CDEF here from PTCH files; move patch that disables Plus check
; for control visible (for MacExpress) here from PatchPlusROM
; <3> 10/24/90 KSM <dba>Fix SetCTitle to check if SetHandleSize failed.
; <2> 10/8/90 dba move the NewControl/contrlOwner bug fix here from
; WindowMgrPatches.a
; <1> 9/23/90 dba Created today with two patches; NewControl heap scramble bug in
; 32-bit mode, DisposeControl erasing invisible controls.
;
load 'StandardEqu.d'
include 'LinkedPatchMacros.a'
include 'LayerEqu.a'
include 'ControlPriv.a'
; NOTE: patches to SetCtlColor and GetAuxCtl are found in WindowMgrPatches.a
EraseControlInDisposeControl ROMBind (Plus,$12E9C),(SE,$D4A0),(II,$11DC4),(Portable,$1270E),(IIci,$15F00)
AfterEraseControlInDisposeControl ROMBind (Plus,$12E9E),(SE,$D4A2),(II,$11DC6),(Portable,$12710),(IIci,$15F02)
AfterSetCtlColorInNewControl ROMBind (II,$11C6A),(IIci,$15D84)
AfterSetHandleSizeInSetCTitle ROMBind (Plus,$13002),(SE,$D606),(II,$11F44),(IIci,$160C0),(Portable,$12874)
GoTstVisInSetCTitle ROMBind (Plus,$13010),(SE,$D614),(II,$11F52),(IIci,$160CE),(Portable,$12882)
AfterLoadResourceInCallControl ROMBind (Plus,$12E58),(SE,$0D45C),(II,$11D46)
AfterSectRectInCallControl ROMBind (Plus,$12E1E)
AfterFrameRectInFastPaint ROMBind (II,$105B4),(IIci,$19492)
GetCVariantInCallControl ROMBind (II,$11D2E),(IIci,$15E48)
OwnerPortInROM ROMBind (II,$12084),(IIci,$16218)
AfterDragTheRgnInDragControl ROMBind (II,$12044),(IIci,$161D8)
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; NewControl <20> also, SetCtlColor needs contrlOwner, so we need to set it up before calling
; fix bug where we have a dereferenced handle across SetCtlColor in 32-bit mode
;
; This patch has been rolled into ControlMgr.a.
;
FixNewControl32Bit ComeFromPatchProc _SetCtlColor,AfterSetCtlColorInNewControl,(II,IIci)
addq #4,sp ; get rid of the return address
move.l 30(a6),contrlOwner(a2) ; copy the owner into the field
jsrOld ; call SetCtlColor
move.l (a3),a2 ; re-dereference the control handle
jmpROM AfterSetCtlColorInNewControl
EndProc
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; DisposeControl <20> fix bug where we erase controls even if they are invisible
PatchDisposeControlForInvisibleControls PatchProc _DisposeControl,(Plus,SE,II,Portable)
; Here we check to see if the control is invisible, and rejoin the ROM just before the routine that
; does the erasing, if the control is visible, or just after if it is invisible.
MOVE.L A3,-(SP) ;preserve a work register
MOVE.L 8(SP),A3 ;get the control handle
move.l (a3),a0
tst.b contrlVis(A0) ;is the control visible?
beqROM AfterEraseControlInDisposeControl ; no, skip erasing
jmpROM EraseControlInDisposeControl ; yes, go erase
EndProc
PatchDisposeControlForInvisibleControlsIIci PatchProc _DisposeControl,(IIci)
; The IIci version of the control manager saves two registers instead of one.
;
; This patch has been rolled into ControlMgr.a.
;
MOVEM.L A2/A3,-(SP) ;preserve work registers
MOVE.L 12(SP),A3 ;get the control handle
move.l (a3),a0
tst.b contrlVis(A0) ;is the control visible?
beqROM AfterEraseControlInDisposeControl ; no, skip erasing
jmpROM EraseControlInDisposeControl ; yes, go erase
EndProc
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; DisposeControl <20> fix bug so that the current layer is switched in when disposing the control <7>
;
; This patch has been rolled into ControlMgr.a.
;
PatchDisposeControlForCorrectLayer PatchProc _DisposeControl,(Plus,SE,II,IIci,Portable) ; <7>
move.l 4(sp), d0 ; get the control handle <7>
move.l d0, a0
beq.s @failNil ; in case it's bogus <7>
move.l (a0), a0 ; get pointer <7>
subq.l #4, sp ; room for result <7>
subq.l #4, sp ; room for result for _SwapCurLayer <7>
move.l contrlOwner(a0), -(sp) ; setup for _GetParent <7>
_GetParent
_SwapCurLayer ; swap for parent, leaves original layer on stack <7>
move.l 8(sp), -(sp) ; repush control handle for old routine <7>
jsrOld ; call old <7>
_SetCurLayer ; original should be on stack waiting for us <7>
@failNil move.l (sp), a0 ; get return address <7>
addq.l #8, sp ; remove address and control handle <7>
jmp (a0) ; return from whence we came <7>
EndProc ; <7>
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; SetCTitle <20> Check MemError after SetHandleSize before BlockMoving new data
;
; This patch has been rolled into ControlMgr.a.
;
CheckMemErrInSetCTitle ComeFromPatchProc _SetHandleSize,AfterSetHandleSizeInSetCTitle,(Plus,SE,II,IIci,Portable)
LEA AfterOSDispatcher, A1 ; after doing the SetHandleSize, come back here
MOVE.L A1, ReturnAddressDepth(sp) ; jam in that return address
jmpOld ; go do the SetHandleSize
AfterOSDispatcher
beqROM AfterSetHandleSizeInSetCTitle
ADDQ.W #4, SP ; Pull the size off the stack
jmpROM GoTstVisInSetCTitle ; And skip over BlockMove call
EndProc
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; LoadResource <20> do a system error if we try to load a CDEF resource and fail
SysErrorIfNoCDEF ComeFromPatchProc _LoadResource,AfterLoadResourceInCallControl,(Plus,SE,II)
addq #4,sp ; get rid of the return address
jsrOld ; call LoadResource
tst.l (a0) ; is the handle we just tried to load still empty?
bnzROM AfterLoadResourceInCallControl ; no, go back to the ROM
moveq #dsCDEFNotFound,D0 ; get error code
_SysError
EndProc
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; drawing controls <20> always draw controls, even if there rectangles are outside the portRect
; The control manager on the Plus only drew controls whose rects lay within the portRect.
; Unfortunately MacExpress does some strange mapping of coordinates into its split
; view windows at the QuickDraw level (that is, after we have decided not to draw it).
; This patch ignores the SectRect completely and returns that it should always be drawn.
DontCheckControlRects ComeFromPatchProc _SectRect,AfterSectRectInCallControl,(Plus)
move.l (sp)+,a0 ; get return address
lea 12(sp),sp ; strip parameters
st (sp) ; return true
jmp (a0) ; and return to caller
EndProc
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; FrameRect in FastPaint
DrawThumbOutline ComeFromPatchProc _FrameRect,AfterFrameRectInFastPaint,(II,IIci)
tst.w DragFlag ; are we drawing the thumb outline?
beqOld ; no => do the old stuff
cmpROM AfterDragTheRgnInDragControl,4(a6) ; do we come from DragControl?
bneOld ; no => do the old stuff
move.l -48(a6),a0 ; get the control record
move.l (a0),a0 ; get the ptr to control record
move.l contrlDefHandle(a0),a0 ; get the CDEF handle
move.l (a0),a0 ; get the ptr to CDEF
cmp.l #'CDEF',4(a0) ; Is this a CDEF?
bneOld ; No => FrameRect
btst #0,3(a0) ; Can CDEF handle this message?
beqOld ; No => FrameRect
move.l a3,-(sp) ; save off a3
move.l -48(a6),a3 ; put the control record in a3 since ROM routines need it
pea comeBackHere ; push an artificial return address
jsrROM OwnerPortInROM ; get the old port
clr.l -(sp) ; result code
clr.w -(sp) ; varCode
move.l a3,-(sp) ; control handle
move.w #drawThumbOutlineMsg,-(sp) ; message
move.l 28(sp),-(sp) ; put rect into parameter
subq.l #2,sp ; room for results
move.l a3,-(sp) ; control handle
jmpROM GetCVariantInCallControl ; borrow CallControl from ROM to save code
comeBackHere
move.l (sp)+,a3 ; restore a3
tst.l d0 ; did CDEF handle the drawing?
beqOld ; No => FrameRect
move.l (sp)+,(sp) ; back from CallControl
rts ; return to DragControl
EndProc
IF TheFuture THEN ; don<6F>t put data in code space in the future
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; InitScrollSpeedGlobals - defined in ControlMgrExtensions.a
;
; allocate and initialize globals stored in emScrollSpeedGlobals
;
import InitScrollSpeedGlobals
MakeInstall InitScrollSpeedGlobals,(Plus,SE,II,Portable,IIci)
ENDIF ; TheFuture
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; ThrottleScrollingSpeed - formerly in ScrollSpeedFix.a
;
; We patch TrackControl to substitute in our "special" action proc. In order to
; communicate the old action proc, we need to store it in a PC relative place.
; This makes TrackControl non-reentrant, but I don't think it ever was expected to be.
;
; This patch has been rolled into ControlMgr.a.
;
ThrottleScrollingSpeed PatchProc _TrackControl,(Plus,SE,II,Portable,IIci)
tcFrame RECORD 0
returnAddress DS.L 1
actionProc DS.L 1
startPoint DS.L 1
theControl DS.L 1
result DS.W 1
ENDR
WITH tcFrame
MOVE.L actionProc(SP), D0 ; Get the actionProc.
BEQ.S @noAction ; Skip patch if none.
BTST #0, D0 ; Is it odd?
BNE.S @noAction ; Skip patch if so.
IF TheFuture THEN
move.l ExpandMem,a0
move.l ExpandMemRec.emScrollSpeedGlobals(a0),a0
MOVE.L D0,ScrollSpeedGlobals.saveAction(A0) ; Save the old actionProc.
ELSE
LEA saveAction, A0
MOVE.L D0, (A0) ; Save the old actionProc.
ENDIF
LEA ScrollAction, A0
MOVE.L A0, actionProc(SP) ; And replace it with mine.
SUBQ.L #4, SP
_TickCount ; Get a time stamp.
IF TheFuture THEN
move.l ExpandMem,a0
move.l ExpandMemRec.emScrollSpeedGlobals(a0),a0
MOVE.L (SP)+,ScrollSpeedGlobals.startTicks(A0) ; And save it.
ELSE
LEA startTicks, A0
MOVE.L (SP)+, (A0) ; And save it.
ENDIF
@noAction
jmpOld ; Return to old _TrackControl
ENDWITH
IF NOT TheFuture THEN ; don<6F>t put data in code space in the future
saveAction DS.L 1
startTicks DS.L 1
actionTicks DS.L 1
saveReturn DS.L 1 ; must follow actionTicks
ENDIF ; NOT TheFuture
ScrollAction
saFrame RECORD 0
returnAddress DS.L 1
partCode DS.W 1
theControl DS.L 1
ENDR
WITH saFrame
MOVE.W partCode(SP), D0 ; Get the part code
CMP.W #inUpButton, D0 ; < up button?
BLT.S @callAction ; Skip if so.
CMP.W #inPageDown, D0 ; > page down?
BGT.S @callAction ; Skip if so.
SUBQ.L #4, SP
_TickCount ; Get a time stamp.
IF TheFuture THEN
move.l ExpandMem,a0
move.l ExpandMemRec.emScrollSpeedGlobals(a0),a0
MOVE.L (SP)+,ScrollSpeedGlobals.actionTicks(A0) ; Save it
MOVE.L (SP)+,ScrollSpeedGlobals.saveReturn(A0) ; Copy the return address into a safe place.
ELSE
LEA actionTicks, A0
MOVE.L (SP)+, (A0)+ ; Save it and have A0 point to saveReturn
MOVE.L (SP)+, (A0) ; Copy the return address into a safe place.
ENDIF
BSR.S @callAction ; Call the old action procedure.
ENDWITH
SUBQ.L #2, SP ; Room for result.
IF TheFuture THEN
move.l ExpandMem,a0
move.l ExpandMemRec.emScrollSpeedGlobals(a0),a0
MOVE.L ScrollSpeedGlobals.startTicks(a0), -(SP)
MOVE.L ScrollSpeedGlobals.actionTicks(a0), -(SP)
ELSE
MOVE.L startTicks(PC), -(SP)
MOVE.L actionTicks(PC), -(SP)
ENDIF
CLR.W -(SP) ; itemsVisible is unknown.
_ScrollDelay
ADDQ.L #2, SP ; Toss result.
IF TheFuture THEN
move.l ExpandMem,a0
move.l ExpandMemRec.emScrollSpeedGlobals(a0),a0
move.l ScrollSpeedGlobals.saveReturn(a0),a0
ELSE
MOVE.L saveReturn(PC), A0
ENDIF
JMP (A0) ; And return.
@callAction
IF TheFuture THEN
move.l ExpandMem,a0
move.l ExpandMemRec.emScrollSpeedGlobals(a0),a0
move.l ScrollSpeedGlobals.saveAction(a0),a0
ELSE
MOVE.L saveAction(PC), A0
ENDIF
JMP (A0) ; Just call the action proc normally.
ENDPROC
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End
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