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