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menu.asm
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set LftMenu,(iy+BetaFlags)
set MenuInDisplay,(iy+BetaFlags)
call DRAWMENU
ld a,1
ld (RgtMenuCur),a
UPDATE_MENU:
call DELETE_LEFT
ld a,1
ld (LftMenuCur),a
vLocate(44,6)
ld a,$D0
bit XText,(iy+SelectFlags)
call z,LOAD_EMPTY
bcall(_vputmap)
vLocate(44,12)
ld a,$D0
bit XCalc,(iy+SelectFlags)
call z,LOAD_EMPTY
bcall(_vputmap)
;| vLocate(44,18) ; These are two extra menu items after the existing two. Now obsolete.
;| ld a,$D0
;| bit XScheikunde,(iy+SelectFlags)
;| call z,LOAD_EMPTY
;| bcall(_vputmap)
;| vLocate(44,24)
;| ld a,$D0
;| bit XNoSubject,(iy+SelectFlags)
;| call z,LOAD_EMPTY
;| bcall(_vputmap)
bcall(_zeroop1)
ld a,progobj
ld (op1),a
call _FindBetaUp
jp c,NONE_FOUND
call OUTPUT_PROGRAM_LIST_UP
bit LftMenu,(iy+BetaFlags)
call nz,PLACE_LEFT
LMENU_LOOP:
call _chkfindplugin
call CLEAR_PROGRAM_INFO
vLocate(40,40)
ld hl,(Author)
bcall(_vPuts)
vLocate(2,56)
ld hl,Description
bcall(_vPuts)
bit LftMenu,(iy+BetaFlags)
jp z,RMENU_LOOP
bcall(_grbufcpy)
LMENU_KEYLOOP:
call BETAKEY
cp key_up
jr z,LEFT_UP
cp key_down
jr z,LEFT_DOWN
cp key_right
jr z,RIGHT_MENU
cp key_enter
jr z,LEFT_ENTER
jr LMENU_KEYLOOP
LEFT_UP:
ld a,(LftMenuCur)
cp 1
jr z,PLUG_UP
dec a
ld (x),a
call _FindBetaDown ; update op1
; jr c,LMENU_KEYLOOP ; should not be possible
jp c,_errTolTooSmall
call DELETE_LEFT
ld a,(x)
ld (LftMenuCur),a
call PLACE_LEFT
jr LMENU_LOOP
PLUG_UP: ; scroll list up
call _FindBetaDown
jr c,LMENU_KEYLOOP
call OUTPUT_PROGRAM_LIST_UP
jr LMENU_LOOP
LEFT_DOWN:
ld a,(LftMenuCur)
cp 9
jr z,PLUG_DOWN
inc a
ld (x),a
call _FindBetaUp
jr c,LMENU_KEYLOOP
call DELETE_LEFT
ld a,(x)
ld (LftMenuCur),a
call PLACE_LEFT
jp LMENU_LOOP
PLUG_DOWN:
call _FindBetaUp
jr c,LMENU_KEYLOOP
call OUTPUT_PROGRAM_LIST_DOWN
jp LMENU_LOOP
LEFT_ENTER:
res MenuInDisplay,(iy+BetaFlags)
bit xCalc,(iy+properties)
jp nz,CALC_PLUG
jp z,SIMPLE_SCROLL
LOAD_EMPTY:
ld a,$06
ret
RIGHT_MENU:
res LftMenu,(iy+BetaFlags)
call DELETE_LEFT
call PLACE_RIGHT
RMENU_LOOP:
bcall(_grbufcpy)
RMENU_KEYLOOP:
call BETAKEY
cp key_up
jr z,RIGHT_UP
cp key_down
jr z,RIGHT_DOWN
cp key_left
jr z,LEFT_MENU
cp key_enter
jr z,RIGHT_ENTER
jr RMENU_KEYLOOP
RIGHT_UP:
ld a,(RightMenuCur)
cp 1
jr z,RMENU_KEYLOOP
dec a
push af
call DELETE_RIGHT
pop af
ld (RightMenuCur),a
call PLACE_RIGHT
jr RMENU_LOOP
RIGHT_DOWN:
ld a,(RightMenuCur)
cp 2
jr z,RMENU_KEYLOOP
inc a
push af
call DELETE_RIGHT
pop af
ld (RightMenuCur),a
call PLACE_RIGHT
jr RMENU_LOOP
LEFT_MENU:
ld a,(LeftMenuCur)
and a
jr z,RMENU_KEYLOOP
set LftMenu,(iy+BetaFlags)
call DELETE_RIGHT
call PLACE_LEFT
jp LMENU_LOOP
RIGHT_ENTER:
ld a,(RightMenuCur)
;| ld b,%10000000 ; Wiskunde
;| cp 1
;| jr z,XOR_IT
;| ld b,%01000000 ; Natuurkunde
;| cp 2
;| jr z,XOR_IT
;| ld b,%00100000 ; Scheikunde
;| cp 3
;| jr z,XOR_IT
;| ld b,%00010000 ; Overigen
ld b,%00000100 ; Text
cp 1
jr z,XOR_IT
ld b,%00001000 ; Calc
XOR_IT:
ld a,b
xor (iy+SelectFlags)
ld (iy+SelectFlags),a
jp UPDATE_MENU
NONE_FOUND:
ld a,(LftMenuCur)
and a
jr z,RMENU_KEYLOOP
call CLEAR_PROGRAM_LIST
call CLEAR_PROGRAM_INFO
Text(6,1,NONE_TXT)
res LftMenu,(iy+BetaFlags)
call DELETE_LEFT
call PLACE_RIGHT
xor a
ld (LeftMenuCur),a
jp RMENU_LOOP
DELETE_LEFT:
call CALCULATE_LEFT
ld a,$06
bcall(_vputmap)
ret
PLACE_LEFT:
call CALCULATE_LEFT
ld a,$05
bcall(_vputmap)
CALCULATE_LEFT:
ld a,(LeftMenuCur)
and a
jr z,CALCULATE_INVALID
ld l,a
ld h,6
bcall(_htimesl)
ld a,l
sub 5
ld h,a
ld l,2
ld (pencol),hl
ret
CALCULATE_INVALID:
pop hl
ret
DELETE_RIGHT:
call CALCULATE_RIGHT
ld a,$06
bcall(_vputmap)
ret
PLACE_RIGHT:
call CALCULATE_RIGHT
ld a,$05
bcall(_vputmap)
CALCULATE_RIGHT:
ld a,(RightMenuCur)
ld l,a
ld h,6
bcall(_htimesl)
ld h,l
ld l,40
ld (pencol),hl
ret
DRAWMENU:
bcall(_GrBufClr)
; Vertical Lines
LineOn
Line(00,00,00,63)
Line(38,00,38,55)
Line(95,05,95,63)
; Horizontal Lines
LineChange
Line(00,00,38,00)
Line(38,05,95,05)
Line(38,31,95,31)
Line(38,39,95,39)
Line(38,47,95,47)
Line(00,55,95,55)
Line(00,63,95,63)
; Square(0,0,38,0)
; Square(38,5,94,5)
; Square(38,31,94,31)
; Square(38,39,94,39)
; Square(38,47,94,47)
; Square(0,55,94,55)
; Square(0,0,0,63)
; Square(38,0,38,55)
; Square(94,5,94,63)
; Square(0,63,94,63)
Text(48,6,TEXT_TXT)
Text(48,12,CALC_TXT)
Text(40,32,AUTHOR_TXT)
Text(40,48,DESCRIPTION_TXT)
ret
OUTPUT_PROGRAM_LIST_UP:
call CLEAR_PROGRAM_LIST
bcall(_op1toop4)
ld b,9 ; there are 9 slots in the menu
UP_PROGRAM_LIST_LOOP:
push bc
ld h,b ; 55-(b*6)->penrow
ld l,6
bcall(_htimesl)
ld a,55
sub l
ld h,a
ld l,6
ld (pencol),hl
ld hl,op1+1
bcall(_vputs) ; outputs plugin name
call _FindBetaUp ; find next Plugin
jr c,UP_PROGRAM_LIST_LOOP_END
pop bc
djnz UP_PROGRAM_LIST_LOOP
push bc
UP_PROGRAM_LIST_LOOP_END:
pop bc
bcall(_op4toop1)
ret
OUTPUT_PROGRAM_LIST_DOWN:
call CLEAR_PROGRAM_LIST
bcall(_op1toop4)
ld b,9 ; there are 9 slots in the menu
DN_PROGRAM_LIST_LOOP:
push bc
ld h,b ; (b*6)-5->penrow
ld l,6
bcall(_htimesl)
ld a,l
sub 5
ld h,a
ld l,6
ld (pencol),hl
ld hl,op1+1
bcall(_vputs) ; outputs plugin name
call _FindBetaDown ; Find next Plugin
jr c,DN_PROGRAM_LIST_LOOP_END
pop bc
djnz DN_PROGRAM_LIST_LOOP
push bc
DN_PROGRAM_LIST_LOOP_END:
pop bc
bcall(_op4toop1)
ret
CLEAR_PROGRAM_LIST:
LineOff
Square(6,1,37,54) ; clear program list
ret
CLEAR_PROGRAM_INFO:
LineOff
Square(2,56,93,61) ; clear author
Square(40,40,93,45) ; clear description
ret