a2d/desktop.inc

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;;; ==================================================
;;; DeskTop Internals
;;; ==================================================
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DA_LOAD_ADDRESS := $800
DA_MAX_SIZE := $1C00 - DA_LOAD_ADDRESS
;;; ==================================================
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;;; Direct Calls (from main memory)
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;;; * = Used by Desk Accessories
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JUMP_TABLE_00 := $4000 ; ???
JUMP_TABLE_A2D_RELAY := $4003 ; A2D relay call (main>aux)
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JUMP_TABLE_06 := $4006 ; ???
JUMP_TABLE_09 := $4009 ; ???
JUMP_TABLE_0C := $400C ; ???
JUMP_TABLE_0F := $400F ; Auxload
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JUMP_TABLE_EJECT := $4012 ; Eject command
JUMP_TABLE_REDRAW_ALL := $4015 ; Redraw all windows (e.g. after a drag) *
JUMP_TABLE_DESKTOP_RELAY:= $4018 ; DESKTOP relay call (main>aux)
JUMP_TABLE_LOAD_SEG := $401B ; Load dynamic routine
JUMP_TABLE_CLEAR_SEL := $401E ; Clear DeskTop selection *
JUMP_TABLE_MLI := $4021 ; ProDOS MLI call (Y=call, X,A=params addr) *
JUMP_TABLE_COPY_TO_BUF := $4024 ; Copy to buffer
JUMP_TABLE_COPY_FROM_BUF:= $4027 ; Copy from buffer
JUMP_TABLE_NOOP := $402A ; No-Op command (RTS)
JUMP_TABLE_2D := $402D ; ??? (Draw type/size/date in non-icon views?)
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JUMP_TABLE_30 := $4030 ; Show alert 0
JUMP_TABLE_33 := $4033 ; Show alert X
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JUMP_TABLE_LAUNCH_FILE := $4036 ; Launch file
JUMP_TABLE_CUR_POINTER := $4039 ; Changes mouse cursor to pointer *
JUMP_TABLE_CUR_WATCH := $403C ; Changes mouse cursor to watch
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JUMP_TABLE_RESTORE_SEG := $403F ; Restore from dynamic routine
;;; ==================================================
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;;; API Calls
;;; NOTE: Some of these are used by Desk Accessories
DESKTOP := $8E00
;; MLI-style call (jsr A2D ; .byte call ; .addr params)
;; Call from AUX (RAMRDON/RAMWRTON)
;; Implementation bounces to $93BC, uses jump table at $939E
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;; $02 ???
;; $03 ???
;; $06 ???
;; $07 ???
DESKTOP_REDRAW_ICONS := $0C ; Repaints desktop icons
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;; $0D used at start of drag-select
;; $09 at end (then another $0D)
;;; Call a DESKTOP entry point:
;;; DESKTOP_CALL n - params is $0000
;;; DESKTOP_CALL n, params_addr
;;; DESKTOP_CALL m, params_addr, label - params_addr is labeled for modifying
.macro DESKTOP_CALL op, addr, label
jsr DESKTOP
.byte op
.if .paramcount > 2
label := *
.endif
.if .paramcount > 1
.addr addr
.else
.addr 0
.endif
.endmacro
;;; ==================================================
;;; Internals - Windows (paths) and Icons (files)
;;; NOTE: Some of these are used by Desk Accessories
;; These are DeskTop internals, but it appears there is no
;; API for getting the selected file.
file_selected := $DF21 ; 0 if no selection, 1 otherwise
path_index := $DF20 ; index of selected window (used to get prefix)
path_table := $DFB3 ; window address table
;; each entry is 65 bytes long
;; length-prefixed path string (no trailing /)
file_index := $DF22 ; index of selected file (global, not w/in window)
file_table := $DD9F ; file address table
;; each entry is 27 bytes long
;; .byte ??
;; .byte ??
;; .byte type/icon (bits 4,5,6 clear = directory)
;; .word iconx (pixels)
;; .word icony (pixels)
;; .byte ??
;; .byte ??
;; .byte len, name (length-prefixed, spaces before/after; 17 byte buffer)
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;;; ==================================================
;;; Internals - Default Font
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;;; Used by DAs for window definitions
DEFAULT_FONT := $8800
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;;; Modified by Show Text File DA to toggle fixed width
font_flag := $8800 ; = $00 - if high bit set, glyphs are 2 bytes wide (???)
font_size_count := $8801 ; = $7F - max glyph number (count is this + 1)
font_height := $8802 ; 9 pixels
font_width_table := $8803 ; width in pixels, indexed by ASCII code
font_glyphs := $8883 ; $80 glyphs, organized by row, 9 bytes per
;;; So glyph for A $41
;;; width is at $8803 + $41 = $8844 which is 7
;;; row0 is at $8883 + $41 + (0 * $80) = $88C4 ~ $1E = %00011110
;;; row1 is at $8883 + $41 + (1 * $80) = $8944 ~ $33 = %00110011
;;; etc
;;; Control Character Glyphs
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;;;
;;; Glyphs $00-$1F are useful symbols; some overlap with MouseText
;;; (called out as MT:X in the table below)
;;;
;;; $00 = space $10 = TM left
;;; $01 = folder left (MT:X) $11 = TM right
;;; $02 = folder right (MT:Y) $12 = pound
;;; $03 = hourglass (MT:C) $13 = pi
;;; $04 = insertion pt $14 = divide
;;; $05 = pointer (MT:B) $15 = rarrow (MT:U)
;;; $06 = vbar (MT:_) $16 = tri
;;; $07 = hbar (MT:S) $17 = open circ
;;; $08 = larrow $18 = close (MT:])
;;; $09 = left box $19 = gray odd (MT:W)
;;; $0A = darrow (MT:J) $1A = gray even (MT:V)
;;; $0B = uarrow (MT:K) $1B = solid circ
;;; $0C = right box $1C = inv check (MT:E)
;;; $0D = return (MT:M) $1D = check (MT:D)
;;; $0E = (C) $1E = solid apple (MT:@)
;;; $0F = (R) $1F = open apple (MT:A)
GLYPH_LARROW := $09
GLYPH_RARROW := $15
GLYPH_UARROW := $0B
GLYPH_DARROW := $0A
GLYPH_RETURN := $0D
GLYPH_OAPPLE := $1F
GLYPH_CAPPLE := $1E