source: xtideuniversalbios/trunk/Assembly_Library/Src/Menu/Dialog/DialogMessage.asm@ 541

Last change on this file since 541 was 526, checked in by krille_n_@…, 12 years ago

Changes:

  • Update of the copyright notices to include the year 2013.
File size: 4.0 KB
Line 
1; Project name : Assembly Library
2; Description : Displays message dialog.
3
4;
5; XTIDE Universal BIOS and Associated Tools
6; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
7;
8; This program is free software; you can redistribute it and/or modify
9; it under the terms of the GNU General Public License as published by
10; the Free Software Foundation; either version 2 of the License, or
11; (at your option) any later version.
12;
13; This program is distributed in the hope that it will be useful,
14; but WITHOUT ANY WARRANTY; without even the implied warranty of
15; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16; GNU General Public License for more details.
17; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
18;
19
20
21; Section containing code
22SECTION .text
23
24;--------------------------------------------------------------------
25; DialogMessage_DisplayMessageWithInputInDSSI
26; Parameters:
27; DS:SI: Ptr to DIALOG_INPUT
28; SS:BP: Ptr to parent MENU
29; Returns:
30; Nothing
31; Corrupts registers:
32; AX, BX, CX, DX, SI, DI
33;--------------------------------------------------------------------
34ALIGN JUMP_ALIGN
35DialogMessage_DisplayMessageWithInputInDSSI:
36 mov bx, MessageEventHandler
37 jmp Dialog_DisplayWithDialogInputInDSSIandHandlerInBX
38
39
40;--------------------------------------------------------------------
41; MessageEventHandler
42; Common parameters for all events:
43; BX: Menu event (anything from MENUEVENT struct)
44; SS:BP: Ptr to DIALOG
45; Common return values for all events:
46; CF: Set if event processed
47; Cleared if event not processed
48; Corrupts registers:
49; All
50;--------------------------------------------------------------------
51ALIGN JUMP_ALIGN
52MessageEventHandler:
53 jmp [cs:bx+.rgfnEventHandlers]
54
55
56ALIGN JUMP_ALIGN
57.InitializeMenuinitFromDSSI:
58 or BYTE [bp+MENU.bFlags], FLG_MENU_USER_HANDLES_SCROLLING | FLG_MENU_NOHIGHLIGHT
59 xor ax, ax ; Cannot be NO_ITEM_HIGHLIGHTED because of scrolling
60 jmp Dialog_EventInitializeMenuinitFromDSSIwithHighlightedItemInAX
61
62
63ALIGN JUMP_ALIGN
64.KeyStrokeInAX:
65 call ProcessMessageScrollingKeysFromAX
66 stc
67 ret
68
69
70ALIGN WORD_ALIGN
71.rgfnEventHandlers:
72istruc MENUEVENT
73 at MENUEVENT.InitializeMenuinitFromDSSI, dw .InitializeMenuinitFromDSSI
74 at MENUEVENT.ExitMenu, dw Dialog_EventExitMenu
75 at MENUEVENT.IdleProcessing, dw Dialog_EventNotHandled
76 at MENUEVENT.ItemHighlightedFromCX, dw Dialog_EventNotHandled
77 at MENUEVENT.ItemSelectedFromCX, dw Dialog_EventAnyThatClosesDialog
78 at MENUEVENT.KeyStrokeInAX, dw .KeyStrokeInAX
79 at MENUEVENT.RefreshTitle, dw Dialog_EventRefreshTitle
80 at MENUEVENT.RefreshInformation, dw Dialog_EventRefreshInformation
81 at MENUEVENT.RefreshItemFromCX, dw Dialog_EventRefreshItemFromCX
82iend
83
84
85;--------------------------------------------------------------------
86; ProcessMessageScrollingKeysFromAX
87; Parameters
88; AL: ASCII character
89; AH: BIOS scan code
90; SS:BP: Ptr to DIALOG
91; Returns:
92; Nothing
93; Corrupts registers:
94; BX, CX, DX, SI, DI
95;--------------------------------------------------------------------
96ALIGN JUMP_ALIGN
97ProcessMessageScrollingKeysFromAX:
98 cmp ah, MENU_KEY_UP
99 je SHORT .DecrementLines
100 cmp ah, MENU_KEY_DOWN
101 je SHORT .IncrementLines
102 jmp MenuLoop_ProcessScrollingKeysFromAX
103
104ALIGN JUMP_ALIGN
105.DecrementLines:
106 cmp WORD [bp+MENUINIT.wHighlightedItem], BYTE 0
107 je SHORT .AlreadyAtTheTopOrBottom
108
109 mov ax, [bp+MENU.wFirstVisibleItem]
110 mov [bp+MENUINIT.wHighlightedItem], ax
111 mov ah, MENU_KEY_UP
112 jmp MenuLoop_ProcessScrollingKeysFromAX
113
114ALIGN JUMP_ALIGN
115.IncrementLines:
116 mov ax, [bp+MENUINIT.wItems]
117 dec ax ; Last possible item to highlight
118 cmp [bp+MENUINIT.wHighlightedItem], ax
119 jae SHORT .AlreadyAtTheTopOrBottom
120
121 call MenuScrollbars_GetLastVisibleItemOnPageToAX
122 mov [bp+MENUINIT.wHighlightedItem], ax
123 mov ah, MENU_KEY_DOWN
124 jmp MenuLoop_ProcessScrollingKeysFromAX
125
126ALIGN JUMP_ALIGN
127.AlreadyAtTheTopOrBottom:
128 ret
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