source: xtideuniversalbios/trunk/Assembly_Library/Src/Menu/MenuEvent.asm@ 95

Last change on this file since 95 was 58, checked in by Tomi Tilli, 14 years ago

Changes to Assembly Library:

  • Exiting menu with ESC can now be canceled.
File size: 5.1 KB
RevLine 
[41]1; File name : MenuEvent.asm
2; Project name : Assembly Library
3; Created date : 13.7.2010
[52]4; Last update : 12.10.2010
[41]5; Author : Tomi Tilli
6; Description : Functions for initializing menu system.
7
8; Section containing code
9SECTION .text
10
11;--------------------------------------------------------------------
12; MenuEvent_InitializeMenuinit
13; Parameters
14; SS:BP: Ptr to MENU
15; Returns:
16; DS:SI: Ptr to MENU with MENUINIT initialized from user handler
17; CF: Set if event processed
18; Cleared if event not processed
19; Corrupts registers:
20; AX, BX, DX
21;--------------------------------------------------------------------
22ALIGN JUMP_ALIGN
23MenuEvent_InitializeMenuinit:
24 push ss
25 pop ds
26 mov si, bp
27 mov bx, MENUEVENT.InitializeMenuinitFromDSSI
28 jmp SHORT MenuEvent_SendFromBX
29
30
31;--------------------------------------------------------------------
32; MenuEvent_ExitMenu
33; Parameters
34; SS:BP: Ptr to MENU
35; Returns:
[58]36; CF: Set to exit from menu
37; Cleared to cancel exit
[41]38; Corrupts registers:
39; AX, BX, DX
40;--------------------------------------------------------------------
41ALIGN JUMP_ALIGN
42MenuEvent_ExitMenu:
43 mov bx, MENUEVENT.ExitMenu
44 jmp SHORT MenuEvent_SendFromBX
45
46
47;--------------------------------------------------------------------
48; MenuEvent_IdleProcessing
49; Parameters
50; SS:BP: Ptr to MENU
51; Returns:
52; CF: Set if event processed
53; Cleared if event not processed
54; Corrupts registers:
55; AX, BX, DX
56;--------------------------------------------------------------------
57ALIGN JUMP_ALIGN
58MenuEvent_IdleProcessing:
59 mov bx, MENUEVENT.IdleProcessing
60 jmp SHORT MenuEvent_SendFromBX
61
62
63;--------------------------------------------------------------------
64; MenuEvent_RefreshTitle
65; MenuEvent_RefreshInformation
66; Parameters
[48]67; SS:BP: Ptr to MENU
[41]68; Cursor will be positioned to beginning of window
69; Returns:
70; CF: Set if event processed
71; Cleared if event not processed
72; Corrupts registers:
[48]73; AX, CX, BX, DX
[41]74;--------------------------------------------------------------------
75ALIGN JUMP_ALIGN
76MenuEvent_RefreshTitle:
77 mov bx, MENUEVENT.RefreshTitle
[48]78 jmp SHORT LoadHighlightedItemToCXandSendMessageFromBX
79
[41]80ALIGN JUMP_ALIGN
81MenuEvent_RefreshInformation:
82 mov bx, MENUEVENT.RefreshInformation
[48]83LoadHighlightedItemToCXandSendMessageFromBX:
[52]84 mov cx, [bp+MENUINIT.wHighlightedItem]
[41]85 jmp SHORT MenuEvent_SendFromBX
86
87
88;--------------------------------------------------------------------
89; MenuEvent_RefreshItemFromCX
90; Parameters
91; CX: Index of item to refresh
[48]92; SS:BP: Ptr to MENU
[41]93; Cursor has been positioned to the beginning of item line
94; Returns:
95; CF: Set if event processed
96; Cleared if event not processed
97; Corrupts registers:
98; AX, BX, DX
99;--------------------------------------------------------------------
100ALIGN JUMP_ALIGN
101MenuEvent_RefreshItemFromCX:
102 mov bx, MENUEVENT.RefreshItemFromCX
103 jmp SHORT MenuEvent_SendFromBX
104
105
106;--------------------------------------------------------------------
107; MenuEvent_HighlightItemFromCX
108; Parameters
109; CX: Index of item to highlight
[48]110; SS:BP: Ptr to MENU
[41]111; Returns:
112; Nothing
113; Corrupts registers:
114; AX, BX, DX, SI, DI
115;--------------------------------------------------------------------
116ALIGN JUMP_ALIGN
117MenuEvent_HighlightItemFromCX:
118 mov dx, cx
[52]119 xchg dx, [bp+MENUINIT.wHighlightedItem]
[41]120 push dx
121
122 mov bx, MENUEVENT.ItemHighlightedFromCX
123 call MenuEvent_SendFromBX
124
125 pop ax
126 call MenuText_RefreshItemFromAX
[52]127 mov ax, [bp+MENUINIT.wHighlightedItem]
[41]128 jmp MenuText_RefreshItemFromAX
129
130
131;--------------------------------------------------------------------
132; MenuEvent_KeyStrokeInAX
133; Parameters
134; AL: ASCII character for the key
135; AH: Keyboard library scan code for the key
[48]136; SS:BP: Ptr to MENU
[41]137; Returns:
138; CF: Set if event processed
139; Cleared if event not processed
140; Corrupts registers:
141; AX, BX, DX
142;--------------------------------------------------------------------
143ALIGN JUMP_ALIGN
144MenuEvent_KeyStrokeInAX:
145 mov bx, MENUEVENT.KeyStrokeInAX
146 jmp SHORT MenuEvent_SendFromBX
147
148
149;--------------------------------------------------------------------
150; MenuEvent_ItemSelectedFromCX
151; Parameters
152; CX: Index of selected item
[48]153; SS:BP: Ptr to MENU
[41]154; Returns:
155; CF: Set if event processed
156; Cleared if event not processed
157; Corrupts registers:
158; AX, BX, DX
159;--------------------------------------------------------------------
160ALIGN JUMP_ALIGN
161MenuEvent_ItemSelectedFromCX:
162 mov bx, MENUEVENT.ItemSelectedFromCX
163 jmp SHORT MenuEvent_SendFromBX
164
165
166;--------------------------------------------------------------------
167; MenuEvent_SendFromBX
168; Parameters
169; BX: Menu event to send
170; SS:BP: Ptr to MENU
171; Other registers: Event specific parameters
172; Returns:
173; AX, DX: Event specific return values
174; CF: Set if event processed
175; Cleared if event not processed
176; Corrupts registers:
177; BX
178;--------------------------------------------------------------------
179ALIGN JUMP_ALIGN
180MenuEvent_SendFromBX:
181 push es
182 push ds
183 push di
184 push si
185 push cx
186 call [bp+MENU.fnEventHandler]
187 pop cx
188 pop si
189 pop di
190 pop ds
191 pop es
192 ret
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