[41] | 1 | ; File name : MenuInit.asm
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| 2 | ; Project name : Assembly Library
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| 3 | ; Created date : 13.7.2010
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| 4 | ; Last update : 16.9.2010
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| 5 | ; Author : Tomi Tilli
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| 6 | ; Description : Functions for initializing menu system.
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| 7 |
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| 8 | ; Section containing code
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| 9 | SECTION .text
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| 10 |
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| 11 | ;--------------------------------------------------------------------
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| 12 | ; MenuInit_DisplayMenuWithHandlerInBXandUserDataInDXAX
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| 13 | ; Parameters
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| 14 | ; DX:AX: User specified data
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| 15 | ; BX: Menu event handler
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| 16 | ; Returns:
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| 17 | ; AX: Index of selected item or NO_ITEM_SELECTED
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| 18 | ; Corrupts registers:
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| 19 | ; All except segments
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| 20 | ;--------------------------------------------------------------------
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| 21 | ALIGN JUMP_ALIGN
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| 22 | MenuInit_DisplayMenuWithHandlerInBXandUserDataInDXAX:
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| 23 | push es
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| 24 | push ds
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| 25 | LOAD_BDA_SEGMENT_TO ds, cx
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| 26 | push WORD [BDA.wVidCurShape]
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| 27 | eENTER_STRUCT MENU_size
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| 28 |
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| 29 | mov cx, MENU_size / 2
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| 30 | call Memory_ZeroSSBPbyWordsInCX
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| 31 | call MenuInit_EnterMenuWithHandlerInBXandUserDataInDXAX
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| 32 | mov ax, [bp+MENU.wHighlightedItem]
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| 33 |
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| 34 | eLEAVE_STRUCT MENU_size
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| 35 | pop ax
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| 36 | CALL_DISPLAY_LIBRARY SetCursorShapeFromAX
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| 37 | pop ds
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| 38 | pop es
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| 39 | ret
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| 40 |
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| 41 |
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| 42 | ;--------------------------------------------------------------------
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| 43 | ; MenuInit_EnterMenuWithHandlerInBXandUserDataInDXAX
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| 44 | ; Parameters
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| 45 | ; DX:AX: User specified data
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| 46 | ; BX: Menu event handler
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| 47 | ; SS:BP: Ptr to MENU
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| 48 | ; Returns:
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| 49 | ; Nothing
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| 50 | ; Corrupts registers:
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| 51 | ; All, except SS:BP
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| 52 | ;--------------------------------------------------------------------
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| 53 | ALIGN JUMP_ALIGN
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| 54 | MenuInit_EnterMenuWithHandlerInBXandUserDataInDXAX:
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| 55 | mov [bp+MENU.fnEventHandler], bx
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| 56 | mov [bp+MENU.dwUserData], ax
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| 57 | mov [bp+MENU.dwUserData+2], dx
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| 58 | mov WORD [bp+MENU.wHighlightedItem], NO_ITEM_HIGHLIGHTED
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| 59 |
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| 60 | mov ax, CURSOR_HIDDEN
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| 61 | CALL_DISPLAY_LIBRARY SetCursorShapeFromAX
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| 62 | call MenuEvent_InitializeMenuinit ; User initialization
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| 63 | call MenuTime_RestartSelectionTimeout
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| 64 | call MenuInit_RefreshMenuWindow
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| 65 | jmp MenuLoop_Enter
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| 66 |
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| 67 |
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| 68 | ;--------------------------------------------------------------------
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| 69 | ; MenuInit_RefreshMenuWindow
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| 70 | ; Parameters
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| 71 | ; SS:BP: Ptr to MENU
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| 72 | ; Returns:
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| 73 | ; Nothing
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| 74 | ; Corrupts registers:
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| 75 | ; AX, BX, CX, DX, SI, DI
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| 76 | ;--------------------------------------------------------------------
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| 77 | ALIGN JUMP_ALIGN
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| 78 | MenuInit_RefreshMenuWindow:
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| 79 | call MenuBorders_RefreshAll ; Draw borders
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| 80 | call MenuText_RefreshTitle ; Draw title strings
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| 81 | call MenuText_RefreshAllItems ; Draw item strings
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| 82 | jmp MenuText_RefreshInformation ; Draw information strings
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| 83 |
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| 84 |
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| 85 | ;--------------------------------------------------------------------
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| 86 | ; MenuInit_CloseMenuWindow
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| 87 | ; Parameters
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| 88 | ; SS:BP: Ptr to MENU
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| 89 | ; Returns:
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| 90 | ; Nothing
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| 91 | ; Corrupts registers:
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| 92 | ; Nothing
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| 93 | ;--------------------------------------------------------------------
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| 94 | ALIGN JUMP_ALIGN
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| 95 | MenuInit_CloseMenuWindow:
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| 96 | or BYTE [bp+MENU.bFlags], FLG_MENU_EXIT
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| 97 | ret
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| 98 |
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| 99 |
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| 100 | ;--------------------------------------------------------------------
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| 101 | ; MenuInit_HighlightItemFromAX
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| 102 | ; Parameters
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| 103 | ; AX: Item to highlight
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| 104 | ; SS:BP: Ptr to MENU
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| 105 | ; Returns:
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| 106 | ; Nothing
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| 107 | ; Corrupts registers:
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| 108 | ; AX, BX, CX, DX, SI, DI
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| 109 | ;--------------------------------------------------------------------
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| 110 | ALIGN JUMP_ALIGN
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| 111 | MenuInit_HighlightItemFromAX:
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| 112 | sub ax, [bp+MENU.wHighlightedItem]
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| 113 | jmp MenuScrollbars_MoveHighlightedItemByAX
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| 114 |
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| 115 |
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| 116 | ;--------------------------------------------------------------------
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| 117 | ; MenuInit_SetTitleHeightFromAL
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| 118 | ; MenuInit_SetInformationHeightFromAL
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| 119 | ; MenuInit_SetTotalItemsFromAX
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| 120 | ; Parameters
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| 121 | ; AX/AL: Parameter
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| 122 | ; SS:BP: Ptr to MENU
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| 123 | ; Returns:
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| 124 | ; Nothing
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| 125 | ; Corrupts registers:
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| 126 | ; Nothing
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| 127 | ;--------------------------------------------------------------------
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| 128 | ALIGN JUMP_ALIGN
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| 129 | MenuInit_SetTitleHeightFromAL:
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| 130 | mov [bp+MENUINIT.bTitleLines], al
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| 131 | ret
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| 132 |
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| 133 | ALIGN JUMP_ALIGN
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| 134 | MenuInit_SetInformationHeightFromAL:
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| 135 | mov [bp+MENUINIT.bInfoLines], al
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| 136 | ret
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| 137 |
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| 138 | ALIGN JUMP_ALIGN
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| 139 | MenuInit_SetTotalItemsFromAX:
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| 140 | mov [bp+MENUINIT.wItems], ax
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| 141 | ret
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| 142 |
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| 143 |
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| 144 | ;--------------------------------------------------------------------
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| 145 | ; MenuInit_SetUserDataFromDSSI
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| 146 | ; MenuInit_GetUserDataToDSSI
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| 147 | ; Parameters
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| 148 | ; DS:SI: User data (MenuInit_SetUserDataFromDSSI)
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| 149 | ; SS:BP: Ptr to MENU
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| 150 | ; Returns:
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| 151 | ; DS:SI: User data (MenuInit_GetUserDataToDSSI)
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| 152 | ; Corrupts registers:
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| 153 | ; Nothing
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| 154 | ;--------------------------------------------------------------------
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| 155 | ALIGN JUMP_ALIGN
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| 156 | MenuInit_SetUserDataFromDSSI:
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| 157 | mov [bp+MENU.dwUserData], si
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| 158 | mov [bp+MENU.dwUserData+2], ds
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| 159 | ret
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| 160 |
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| 161 | ALIGN JUMP_ALIGN
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| 162 | MenuInit_GetUserDataToDSSI:
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| 163 | lds si, [bp+MENU.dwUserData]
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| 164 | ret
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