source: xtideuniversalbios/trunk/Assembly_Library/Src/Menu/Dialog/DialogDrive.asm@ 540

Last change on this file since 540 was 526, checked in by krille_n_@…, 12 years ago

Changes:

  • Update of the copyright notices to include the year 2013.
File size: 4.1 KB
Line 
1; Project name : Assembly Library
2; Description : Displays drive 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; Section containing code
21SECTION .text
22
23;--------------------------------------------------------------------
24; DialogDrive_GetDriveWithIoInDSSI
25; Parameters:
26; DS:SI: Ptr to DRIVE_DIALOG_IO
27; SS:BP: Ptr to parent MENU
28; Returns:
29; Nothing
30; Corrupts registers:
31; AX, BX, CX, DX, SI, DI
32;--------------------------------------------------------------------
33ALIGN JUMP_ALIGN
34DialogDrive_GetDriveWithIoInDSSI:
35 mov bx, DriveEventHandler
36 mov BYTE [si+DRIVE_DIALOG_IO.bUserCancellation], TRUE
37 jmp Dialog_DisplayWithDialogInputInDSSIandHandlerInBX
38
39
40;--------------------------------------------------------------------
41; DriveEventHandler
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
52DriveEventHandler:
53 jmp [cs:bx+.rgfnEventHandlers]
54
55
56ALIGN JUMP_ALIGN
57.InitializeMenuinitFromDSSI:
58 xor ax, ax
59 call Dialog_EventInitializeMenuinitFromDSSIforSingleItemWithHighlightedItemInAX
60 call Drive_GetFlagsForAvailableDrivesToDXAX
61 mov [bp+MENU.dwUserData], ax
62 mov [bp+MENU.dwUserData+2], dx
63
64 call Bit_GetSetCountToCXfromDXAX
65 mov [bp+MENUINIT.wItems], cx
66
67 dec cx ; Items initialized to one. Ignore it.
68 add cl, [bp+MENUINIT.bHeight]
69 CALL_DISPLAY_LIBRARY GetColumnsToALandRowsToAH
70 MIN_U cl, ah
71 mov [bp+MENUINIT.bHeight], cl
72 ret
73
74
75ALIGN JUMP_ALIGN
76.ItemSelectedFromCX:
77 call ConvertDriveLetterToBLfromItemIndexInCX
78 lds si, [bp+DIALOG.fpDialogIO]
79 mov BYTE [si+DRIVE_DIALOG_IO.bUserCancellation], FALSE
80 mov [si+DRIVE_DIALOG_IO.cReturnDriveLetter], bl
81 sub bl, 'A'
82 mov [si+DRIVE_DIALOG_IO.bReturnDriveNumber], bl
83 jmp MenuInit_CloseMenuWindow
84
85
86ALIGN JUMP_ALIGN
87.RefreshItemFromCX:
88 push bp
89
90 call ConvertDriveLetterToBLfromItemIndexInCX
91 mov bp, sp
92 push bx
93 mov si, g_szDriveFormat
94 CALL_DISPLAY_LIBRARY FormatNullTerminatedStringFromCSSI
95
96 pop bp
97 stc
98 ret
99
100
101.rgfnEventHandlers:
102istruc MENUEVENT
103 at MENUEVENT.InitializeMenuinitFromDSSI, dw .InitializeMenuinitFromDSSI
104 at MENUEVENT.ExitMenu, dw Dialog_EventExitMenu
105 at MENUEVENT.IdleProcessing, dw Dialog_EventNotHandled
106 at MENUEVENT.ItemHighlightedFromCX, dw Dialog_EventNotHandled
107 at MENUEVENT.ItemSelectedFromCX, dw .ItemSelectedFromCX
108 at MENUEVENT.KeyStrokeInAX, dw Dialog_EventNotHandled
109 at MENUEVENT.RefreshTitle, dw Dialog_EventRefreshTitle
110 at MENUEVENT.RefreshInformation, dw Dialog_EventRefreshInformation
111 at MENUEVENT.RefreshItemFromCX, dw .RefreshItemFromCX
112iend
113
114
115;--------------------------------------------------------------------
116; ConvertDriveLetterToBLfromItemIndexInCX
117; Parameters:
118; CX: Item index
119; SS:BP: Ptr to DIALOG
120; Returns:
121; BL: Drive letter
122; Corrupts registers:
123; AX, CX, DX
124;--------------------------------------------------------------------
125ALIGN JUMP_ALIGN
126ConvertDriveLetterToBLfromItemIndexInCX:
127 inc cx ; Index to count
128 mov bl, 'A'-1
129 mov ax, [bp+MENU.dwUserData]
130 mov dx, [bp+MENU.dwUserData+2]
131ALIGN JUMP_ALIGN
132.CheckNextBit:
133 inc bx ; Increment drive letter
134 shr dx, 1
135 rcr ax, 1
136 jnc SHORT .CheckNextBit
137 loop .CheckNextBit
138 ret
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