source: xtideuniversalbios/trunk/Assembly_Library/Src/Menu/MenuInit.asm@ 298

Last change on this file since 298 was 289, checked in by aitotat@…, 13 years ago

Changes to Assembly Library:

  • Menu Library now properly restores cursor when closing menu.
File size: 5.4 KB
Line 
1; Project name : Assembly Library
2; Description : Functions for initializing menu system.
3
4; Section containing code
5SECTION .text
6
7;--------------------------------------------------------------------
8; MenuInit_DisplayMenuWithHandlerInBXandUserDataInDXAX
9; Parameters
10; DX:AX: User specified data
11; BX: Menu event handler
12; Returns:
13; AX: Index of selected item or NO_ITEM_SELECTED
14; Corrupts registers:
15; All except segments
16;--------------------------------------------------------------------
17ALIGN JUMP_ALIGN
18MenuInit_DisplayMenuWithHandlerInBXandUserDataInDXAX:
19 push es
20 push ds
21 LOAD_BDA_SEGMENT_TO ds, cx, !
22 push WORD [BDA.wVidCurShape]
23 mov cl, MENU_size
24 eENTER_STRUCT cx
25
26 call Memory_ZeroSSBPwithSizeInCX
27 call MenuInit_EnterMenuWithHandlerInBXandUserDataInDXAX
28 mov dx, [bp+MENUINIT.wHighlightedItem]
29
30 eLEAVE_STRUCT MENU_size
31 pop ax
32 CALL_DISPLAY_LIBRARY SetCursorShapeFromAX
33 CALL_DISPLAY_LIBRARY SynchronizeDisplayContextToHardware
34 xchg ax, dx ; Return highlighted item in AX
35 pop ds
36 pop es
37 ret
38
39
40;--------------------------------------------------------------------
41; MenuInit_EnterMenuWithHandlerInBXandUserDataInDXAX
42; Parameters
43; DX:AX: User specified data
44; BX: Menu event handler
45; SS:BP: Ptr to MENU
46; Returns:
47; Nothing
48; Corrupts registers:
49; All, except SS:BP
50;--------------------------------------------------------------------
51ALIGN JUMP_ALIGN
52MenuInit_EnterMenuWithHandlerInBXandUserDataInDXAX:
53 mov [bp+MENU.fnEventHandler], bx
54 mov [bp+MENU.dwUserData], ax
55 mov [bp+MENU.dwUserData+2], dx
56
57 mov ax, CURSOR_HIDDEN
58 CALL_DISPLAY_LIBRARY SetCursorShapeFromAX
59 call MenuEvent_InitializeMenuinit ; User initialization
60%ifndef USE_186
61 call MenuInit_RefreshMenuWindow
62 jmp MenuLoop_Enter
63%else
64 push MenuLoop_Enter
65 ; Fall to MenuInit_RefreshMenuWindow
66%endif
67
68
69;--------------------------------------------------------------------
70; MenuInit_RefreshMenuWindow
71; Parameters
72; SS:BP: Ptr to MENU
73; Returns:
74; Nothing
75; Corrupts registers:
76; AX, BX, CX, DX, SI, DI
77;--------------------------------------------------------------------
78ALIGN JUMP_ALIGN
79MenuInit_RefreshMenuWindow:
80 call MenuBorders_RefreshAll ; Draw borders
81 call MenuText_RefreshTitle ; Draw title strings
82 call MenuText_RefreshAllItems ; Draw item strings
83 jmp MenuText_RefreshInformation ; Draw information strings
84
85
86;--------------------------------------------------------------------
87; MenuInit_CloseMenuIfExitEventAllows
88; Parameters
89; SS:BP: Ptr to MENU
90; Returns:
91; Nothing
92; Corrupts registers:
93; AX, BX, DX
94;--------------------------------------------------------------------
95%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
96ALIGN JUMP_ALIGN
97MenuInit_CloseMenuIfExitEventAllows:
98 call MenuEvent_ExitMenu
99 jc SHORT MenuInit_CloseMenuWindow
100 ret
101%endif
102
103
104;--------------------------------------------------------------------
105; MenuInit_CloseMenuWindow
106; Parameters
107; SS:BP: Ptr to MENU
108; Returns:
109; Nothing
110; Corrupts registers:
111; Nothing
112;--------------------------------------------------------------------
113ALIGN JUMP_ALIGN
114MenuInit_CloseMenuWindow:
115 or BYTE [bp+MENU.bFlags], FLG_MENU_EXIT
116 ret
117
118
119;--------------------------------------------------------------------
120; MenuInit_HighlightItemFromAX
121; Parameters
122; AX: Item to highlight
123; SS:BP: Ptr to MENU
124; Returns:
125; Nothing
126; Corrupts registers:
127; AX, BX, CX, DX, SI, DI
128;--------------------------------------------------------------------
129ALIGN JUMP_ALIGN
130MenuInit_HighlightItemFromAX:
131 sub ax, [bp+MENUINIT.wHighlightedItem]
132 jmp MenuScrollbars_MoveHighlightedItemByAX
133
134;--------------------------------------------------------------------
135; MenuInit_GetHighlightedItemToAX
136; Parameters
137; SS:BP: Ptr to MENU
138; Returns:
139; AX: Index of highlighted item or NO_ITEM_HIGHLIGHTED
140; Corrupts registers:
141; Nothing
142;--------------------------------------------------------------------
143%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
144ALIGN JUMP_ALIGN
145MenuInit_GetHighlightedItemToAX:
146 mov ax, [bp+MENUINIT.wHighlightedItem]
147 ret
148%endif
149
150
151;--------------------------------------------------------------------
152; MenuInit_SetTitleHeightFromAL
153; MenuInit_SetInformationHeightFromAL
154; MenuInit_SetTotalItemsFromAX
155; Parameters
156; AX/AL: Parameter
157; SS:BP: Ptr to MENU
158; Returns:
159; Nothing
160; Corrupts registers:
161; Nothing
162;--------------------------------------------------------------------
163%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
164ALIGN JUMP_ALIGN
165MenuInit_SetTitleHeightFromAL:
166 mov [bp+MENUINIT.bTitleLines], al
167 ret
168
169ALIGN JUMP_ALIGN
170MenuInit_SetInformationHeightFromAL:
171 mov [bp+MENUINIT.bInfoLines], al
172 ret
173
174ALIGN JUMP_ALIGN
175MenuInit_SetTotalItemsFromAX:
176 mov [bp+MENUINIT.wItems], ax
177 ret
178%endif
179
180
181;--------------------------------------------------------------------
182; MenuInit_SetUserDataFromDSSI
183; MenuInit_GetUserDataToDSSI
184; Parameters
185; DS:SI: User data (MenuInit_SetUserDataFromDSSI)
186; SS:BP: Ptr to MENU
187; Returns:
188; DS:SI: User data (MenuInit_GetUserDataToDSSI)
189; Corrupts registers:
190; Nothing
191;--------------------------------------------------------------------
192%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
193ALIGN JUMP_ALIGN
194MenuInit_SetUserDataFromDSSI:
195 mov [bp+MENU.dwUserData], si
196 mov [bp+MENU.dwUserData+2], ds
197 ret
198
199ALIGN JUMP_ALIGN
200MenuInit_GetUserDataToDSSI:
201 lds si, [bp+MENU.dwUserData]
202 ret
203%endif
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