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147 lines
6.0 KiB
Plaintext
147 lines
6.0 KiB
Plaintext
;
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; File: ToolboxEventMgrPatches.a
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;
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; Contains: linked patches for the Toolbox Event Manager
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;
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; Copyright: © 1990, 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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; <3> 3/27/92 JSM Moved this file to ToolboxEventMgr folder, keeping all the old
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; revisions, to reflect current Reality structure.
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; <2> 3/3/92 PN Roll in DoSysErrorUpdates
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; <12> 4/2/91 DFH dba, #86111: Added using32BitHeaps to the FixCheckActivate
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; patch, so that apps (like MacWrite 5.0) that depend on the
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; undocumented sys-vs-user-window event modifier will work, at
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; least in 24-bit mode.
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; <11> 1/14/91 DC rlc - Honor ScrDmpEnb on all machines. Currently implemented on
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; the Plus. Fix Patches to SE and II. Add Patches for Portable and
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; IIci.
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; <10> 12/20/90 DFH (dba) Changed GetNextEvent and EventAvail to look for highlevel
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; events (with a higher priority than updates).
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; <9> 11/20/90 JSM <dba> Add come-from patches on _GetResource inside
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; GetNextEvent() for the Plus (to disable FKEYs from GNE) and the
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; II and SE (to disable FKEYs from the keypad). Moved here from
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; Patch[PlusSEII]ROM.a.
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; <8> 11/4/90 dba save the port around the call to PaintBehind
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; <7> 10/23/90 dba (with csd) fix patch to OSEventAvail; it does the wrong things
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; with the stack
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; <6> 9/22/90 dba Ed Tecot meant well when he told us to do a PaintOne(RootLayer),
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; but he really meant PaintBehind(RootLayer).
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; <5> 8/1/90 dba put in a hack to make the old DSWndUpdate thing work
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; <4> 7/2/90 stb Font fix
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; <3> 6/24/90 DTY Added come-from patch to _GetMouse, which sets the current port
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; to the Window Manager port before calling _GetMouse. This keeps
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; the journal driver happy.
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; <2> 4/26/90 dba add patch to GetNextEvent and EventAvail on the IIci to fix a
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; 32-bit deactivation bug
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; <1> 4/20/90 dba first checked in
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;
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; NOTE: These patches must be loaded *after* the Layer Mgr. since they call GetRootLayer.
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;
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load 'StandardEqu.d'
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include 'LinkedPatchMacros.a'
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include 'LayerEqu.a'
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include 'GestaltEqu.a'
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include 'MFPrivate.a'
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AfterGetMouseInGetNextEvent ROMBind (Plus,$11136),(SE,$B724),(II,$F2E6),(Portable,$10224),(IIci,$15C04)
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AfterOSEventAvailInCheckActivate ROMBind (IIci,$15C28)
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AfterSystemUserWindowInCheckActivate ROMBind (IIci,$15C4A)
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AfterGetResourceInTryFKey ROMBind (Plus,$110F8),(SE,$B6B8),(II,$F27A),(Portable,$101B8),(IIci,$15B98) ; <9> <11>
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DoneGNE ROMBind (Plus,$1112C) ; <9>
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TrySysEvent ROMBind (SE,$B6EA),(II,$F2AC) ; <9>
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AfterOSEventAvailInGetNextEvent ROMBind (Plus,$1108A),(SE,$B656),(II,$F218),(Portable,$10144),(IIci,$15B2A)
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AfterGetOSEventInGetNextEvent ROMBind (Plus,$1108E),(SE,$B65A),(II,$F21C),(Portable,$10148),(IIci,$15B2E)
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; GetNextEvent Ñ update windows when a disk switch dialog or other system error trashed the screen
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; There is some code (in all of our ROMs) that causes an update when a disk switch dialog has
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; appeared, but there was not enough room on the stack to save the bits behind the dialog.
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; There is a bug in this code (the high bit of the top coordinate was set, so we always painted
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; too much). Also, I needed the same mechanism to erase the space under the Òforced quitÓ system
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; error dialog. In order to fix the bug and add a new feature, I introduced a new global (off of
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; ExpandMem) to contain a rectangle that needs to be updated. Anyone (in system software) can union
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; a rectangle into this global (even when the Memory Manager cannot be used) and the next
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; GetNextEvent call will take care of the updating. Patches to the file systemÕs disk switch
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; dialog code in FileSystemPatches.a cause it to union with this rectangle, so that it participates
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; in this scheme.
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; *** This does not take care of the case when the bits are scrolled or otherwise moved before
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; GetNextEvent is called, but neither did the old code, and I donÕt have any ideas.
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DoSysErrorUpdates patchproc _GetNextEvent,(Plus,SE,II,Portable,IIci)
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import ClearSysErrorUpdateRect
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BSET #7,DSWndUpdate ; check if someone is trying to use the old update mechanism
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bnz.s @noUpdateNeeded
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move.l DSAlertRect+4,-(sp)
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move.l DSAlertRect,-(sp)
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bclr #7,(sp) ; clear the bit that is sometimes set here
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move.l sp,-(sp) ; copy of DSAlertRect without the high bit
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move.l ExpandMem,a0
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pea ExpandMemRec.SysErrorUpdateRect(a0)
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move.l (sp),-(sp)
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_UnionRect
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add #8,sp ; get rid of the rectangle on the stack
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@noUpdateNeeded
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TST.B WWExist ; does a window world exist?
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BNE.S @noWindowMgr ; no, one less world to worry about
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subq #2,sp ; make room for result
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move.l ExpandMem,a0
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pea ExpandMemRec.SysErrorUpdateRect(a0)
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_EmptyRect
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tst.b (sp)+ ; is it empty?
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bnz.s @rectIsEmpty
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subq #4,sp ; make room for saved port
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move.l sp,-(sp)
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_GetPort
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SUBQ #4,SP ; get a region for PaintBehind
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_NewRgn
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MOVE.L (SP),-(sp) ; and set region to the deep squid window
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move.l ExpandMem,a0
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pea ExpandMemRec.SysErrorUpdateRect(a0)
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_RectRgn
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subq #4,sp ; make room for root layer
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_GetRootLayer
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MOVE.L 4(sp),-(SP) ; clobber the whole region, from WindowList down!
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_PaintBehind
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_DisposRgn ; and then throw away the clobbered region
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_SetPort ; restore the port
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jsr ClearSysErrorUpdateRect ; no more rectangle
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@rectIsEmpty
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@noWindowMgr
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if forROM then
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import GetNextEvent
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jmp GetNextEvent
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else
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jmpOld
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endif
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endproc
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ClearSysErrorUpdateRect installproc (Plus,SE,II,Portable,IIci)
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; Empty out the sysErrorUpdateRect, and make the coordinates such that UnionRect with any
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; rectangle will return that rectangle. UnionRect will do this if top and left are maximum
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; and bottom and right are minimum.
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move.l ExpandMem,a0
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move.l #$7FFF7FFF,ExpandMemRec.SysErrorUpdateRect+topLeft(a0) ; highest numbers
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move.l #$80008000,ExpandMemRec.SysErrorUpdateRect+botRight(a0) ; lowest numbers
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rts
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endproc
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end
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