172 lines
4.5 KiB
Plaintext
172 lines
4.5 KiB
Plaintext
;
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; File: LCursor.a
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;
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; Contains: xxx put contents here (or delete the whole line) xxx
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;
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; Written by: xxx put name of writer here (or delete the whole line) xxx
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;
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; Copyright: © 1981-1990 by Apple Computer, Inc., all rights reserved.
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;
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; This file is used in these builds: Mac32 Bigbang Sys606
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;
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; Change History (most recent first):
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;
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; <3> 9/17/90 BG Removed <2>. 040s are now behaving more reliably.
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; <2> 6/26/90 BG Added EclipseNOPs for flakey 040s.
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; <•1.4> 5/29/89 BAL Blasting in 32-Bit QuickDraw version 1.0 Final
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; <•1.3> 4/12/89 BAL Blasting in 32-Bit QuickDraw 1.0B1
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; 10/13/86 EHB Moved AllocCrsr to CRSRCORE; Call it from AllocCursor
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; 10/6/86 EHB Redid AllocCrsr to lock handles down and expand data.
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; 10/3/86 EHB Moved AllocCrsr here from GrafAsm Added routine SetCCursor
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;
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BLANKS ON
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STRING ASIS
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;------------------------------------------------------------------
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;
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; --> LCURSOR.TEXT
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;
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; Interfaces to low-level cursor routines.
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;
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; New color cursor support routines.
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;
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;------------------------------------------------------------------
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AllocCursor PROC EXPORT
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IMPORT AllocCrsr
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;----------------------------------------------------------
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;
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; PROCEDURE AllocCursor;
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;
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LEA AllocCrsr,A0 ;get default cursor routine
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MOVE.L JAllocCrsr,D0 ;has vector been initialized?
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BEQ.S @0 ;=>no, use default routine
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MOVE.L D0,A0 ;else use routine in vector
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@0 JMP (A0) ;and call it
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InitCursor PROC EXPORT
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;----------------------------------------------------------
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;
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; PROCEDURE InitCursor;
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;
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MOVE.L GRAFGLOBALS(A5),A0 ;POINT TO QUICKDRAW GLOBALS
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PEA ARROW(A0) ;PUSH ADDR OF ARROW
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_SetCursor ;INSTALL ARROW CURSOR
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MOVE.L JInitCrsr,A0 ;get lo mem pointer
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JMP (A0) ;and call it
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SetCursor PROC EXPORT
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;---------------------------------------------------
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;
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; PROCEDURE SetCursor(crsr: Cursor);
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;
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MOVE.L 4(SP),A0 ;Point to Cursor
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MOVE.L HOTSPOT+V(A0),-(SP) ;PUSH HOTX & HOTY
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MOVE #16,-(SP) ;HEIGHT:=16
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PEA DATA(A0) ;PUSH ADDR OF DATA
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PEA MASK(A0) ;PUSH ADDR OF MASK
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MOVE.L JSetCrsr,A0 ;get lo mem vector
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JSR (A0) ;call vector
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MOVE.L (SP)+,(SP) ;strip param
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RTS ;and return
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SetCCursor PROC EXPORT
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;---------------------------------------------------
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;
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; PROCEDURE SetCCursor(CCRSR: CCrsrHandle);
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;
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; For compatibility with other cursor drawing routines, set up the
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; old cursor data as before, but make sure it's hidden so the B/W cursor
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; isn't displayed.
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; _HideCursor ; make sure it's hidden
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; MOVE.L 4(SP),A0 ; get the color cursor handle
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; MOVE.L (A0),A0 ; get the color cursor pointer
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; PEA CRSR1DATA(A0) ; point to the old-style cursor
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; _SetCursor ; and set it the old way
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MOVE.L 4(SP),-(SP) ; Push handle to color cursor
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MOVE.L JSetCCrsr,A0 ; get lo mem vector
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JSR (A0) ; call vector (but don't call him hector)
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; _ShowCursor ; balance is a virtue
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MOVE.L (SP)+,(SP) ; strip param
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RTS ; and return
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HideCursor PROC EXPORT
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;---------------------------------------------------------
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;
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; PROCEDURE HideCursor;
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;
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; ALL REGS PRESERVED.
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;
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MOVE.L JHideCursor,-(SP) ;get lo mem vector
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RTS ;and call it
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ShowCursor PROC EXPORT
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;---------------------------------------------------------
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;
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; PROCEDURE ShowCursor;
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;
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; ALL REGS PRESERVED.
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;
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MOVE.L JShowCursor,-(SP) ;get lo mem vector
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RTS ;and call it
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ShieldCursor PROC EXPORT
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;---------------------------------------------------------
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;
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; PROCEDURE ShieldCursor(shieldRect: Rect; offset: Point);
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;
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; ALL REGS PRESERVED.
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;
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MOVEM.L D0-D3/A0-A1,-(SP) ;SAVE REGS
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MOVE.L 32(SP),A0 ;POINT TO SHIELDRECT
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MOVEM.W (A0)+,D0/D1/D2/D3 ;GET TOP ... RIGHT
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LEA 28(SP),A1
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SUB (A1),D0 ;TOP - OFFSET.V
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SUB (A1)+,D2 ;BOTTOM - OFFSET.V
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SUB (A1),D1 ;LEFT - OFFSET.H
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SUB (A1),D3 ;RIGHT - OFFSET.H
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MOVE D1,-(SP) ;PUSH GLOBAL LEFT
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MOVE D0,-(SP) ;PUSH GLOBAL TOP
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MOVE D3,-(SP) ;PUSH GLOBAL RIGHT
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MOVE D2,-(SP) ;PUSH GLOBAL BOTTOM
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MOVE.L JShieldCursor,A0 ;get lo mem vector
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JSR (A0) ;and call it
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MOVEM.L (SP)+,D0-D3/A0-A1 ;RESTORE REGS
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MOVE.L (SP)+,(SP)
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MOVE.L (SP)+,(SP) ;STRIP 8 BYTES
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RTS ;AND RETURN
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ObscureCursor PROC EXPORT
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;---------------------------------------------------------
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;
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; PROCEDURE ObscureCursor;
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;
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; Hide the cursor image until the next time the mouse moves.
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;
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MOVE.L JCrsrObscure,A0 ;get lo mem vector
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JMP (A0) ;and call it
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ENDPROC
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