[41] | 1 | ; File name : MenuText.asm |
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| 2 | ; Project name : Assembly Library |
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| 3 | ; Created date : 21.7.2010 |
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[52] | 4 | ; Last update : 12.10.2010 |
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[41] | 5 | ; Author : Tomi Tilli |
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| 6 | ; Description : Functions for drawing menu texts by the user. |
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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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[48] | 12 | ; MenuText_ClearTitleArea |
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| 13 | ; MenuText_ClearInformationArea |
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| 14 | ; Parameters |
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| 15 | ; SS:BP: Ptr to MENU |
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| 16 | ; Returns: |
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| 17 | ; Nothing |
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| 18 | ; Corrupts registers: |
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| 19 | ; AX, BX, CX, DX, SI, DI |
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| 20 | ;-------------------------------------------------------------------- |
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| 21 | ALIGN JUMP_ALIGN |
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| 22 | MenuText_ClearTitleArea: |
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| 23 | call PrepareToDrawTitleArea |
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| 24 | mov cl, [bp+MENUINIT.bTitleLines] |
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| 25 | jmp SHORT ClearCLlinesOfText |
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| 26 | |
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| 27 | ALIGN JUMP_ALIGN |
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| 28 | MenuText_ClearInformationArea: |
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| 29 | call PrepareToDrawInformationArea |
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| 30 | mov cl, [bp+MENUINIT.bInfoLines] |
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| 31 | ClearCLlinesOfText: |
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| 32 | mov al, [bp+MENUINIT.bWidth] |
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| 33 | sub al, MENU_HORIZONTAL_BORDER_LINES+MENU_TEXT_COLUMN_OFFSET |
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| 34 | mul cl |
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| 35 | xchg cx, ax |
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| 36 | mov al, ' ' |
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| 37 | CALL_DISPLAY_LIBRARY PrintRepeatedCharacterFromALwithCountInCX |
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| 38 | ret |
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| 39 | |
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| 40 | |
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| 41 | ;-------------------------------------------------------------------- |
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[41] | 42 | ; MenuText_RefreshTitle |
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| 43 | ; MenuText_RefreshInformation |
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| 44 | ; Parameters |
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| 45 | ; SS:BP: Ptr to MENU |
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| 46 | ; Returns: |
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| 47 | ; Nothing |
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| 48 | ; Corrupts registers: |
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[48] | 49 | ; AX, BX, CX, DX, SI, DI |
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[41] | 50 | ;-------------------------------------------------------------------- |
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| 51 | ALIGN JUMP_ALIGN |
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| 52 | MenuText_RefreshTitle: |
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| 53 | cmp BYTE [bp+MENUINIT.bTitleLines], 0 |
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| 54 | jz SHORT NothingToRefresh |
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[48] | 55 | call PrepareToDrawTitleArea |
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[41] | 56 | jmp MenuEvent_RefreshTitle |
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| 57 | |
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| 58 | ALIGN JUMP_ALIGN |
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| 59 | MenuText_RefreshInformation: |
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| 60 | cmp BYTE [bp+MENUINIT.bInfoLines], 0 |
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| 61 | jz SHORT NothingToRefresh |
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[48] | 62 | call PrepareToDrawInformationArea |
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| 63 | jmp MenuEvent_RefreshInformation |
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[41] | 64 | |
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[48] | 65 | ;-------------------------------------------------------------------- |
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| 66 | ; PrepareToDrawTitleArea |
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| 67 | ; PrepareToDrawInformationArea |
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| 68 | ; Parameters |
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| 69 | ; SS:BP: Ptr to MENU |
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| 70 | ; Returns: |
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| 71 | ; Nothing |
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| 72 | ; Corrupts registers: |
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| 73 | ; AX, BX, DX, SI, DI |
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| 74 | ;-------------------------------------------------------------------- |
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| 75 | ALIGN JUMP_ALIGN |
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| 76 | PrepareToDrawTitleArea: |
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| 77 | mov si, ATTRIBUTE_CHARS.cTitle |
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| 78 | call MenuLocation_GetTitleTextTopLeftCoordinatesToAX |
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[52] | 79 | jmp SHORT FinishPreparationsToDrawTitleOrInformationArea |
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[48] | 80 | |
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| 81 | ALIGN JUMP_ALIGN |
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| 82 | PrepareToDrawInformationArea: |
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[41] | 83 | mov si, ATTRIBUTE_CHARS.cInformation |
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| 84 | call MenuLocation_GetInformationTextTopLeftCoordinatesToAX |
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[52] | 85 | FinishPreparationsToDrawTitleOrInformationArea: |
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| 86 | mov dx, MenuCharOut_MenuTeletypeOutputWithAutomaticLineChange |
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| 87 | jmp SHORT AdjustDisplayContextForDrawingTextsAtCoordsInAXwithAttrTypeInSIandCharOutFunctionInDX |
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[41] | 88 | |
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| 89 | |
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| 90 | ;-------------------------------------------------------------------- |
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| 91 | ; MenuText_RefreshAllItems |
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| 92 | ; Parameters |
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| 93 | ; SS:BP: Ptr to MENU |
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| 94 | ; Returns: |
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| 95 | ; Nothing |
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| 96 | ; Corrupts registers: |
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| 97 | ; AX, BX, DX, SI, DI |
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| 98 | ;-------------------------------------------------------------------- |
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| 99 | ALIGN JUMP_ALIGN |
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| 100 | MenuText_RefreshAllItems: |
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| 101 | push cx |
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| 102 | |
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| 103 | call MenuScrollbars_GetActualVisibleItemsOnPageToCX |
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| 104 | mov ax, [bp+MENU.wFirstVisibleItem] |
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| 105 | ALIGN JUMP_ALIGN |
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| 106 | .ItemRefreshLoop: |
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| 107 | call MenuText_RefreshItemFromAX |
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| 108 | inc ax |
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| 109 | loop .ItemRefreshLoop |
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| 110 | |
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| 111 | pop cx |
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| 112 | NothingToRefresh: |
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| 113 | ret |
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| 114 | |
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| 115 | ;-------------------------------------------------------------------- |
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| 116 | ; MenuText_RefreshItemFromAX |
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| 117 | ; Parameters |
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| 118 | ; AX: Item to refresh |
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| 119 | ; SS:BP: Ptr to MENU |
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| 120 | ; Returns: |
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| 121 | ; Nothing |
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| 122 | ; Corrupts registers: |
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| 123 | ; BX, DX, SI, DI |
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| 124 | ;-------------------------------------------------------------------- |
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| 125 | ALIGN JUMP_ALIGN |
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| 126 | MenuText_RefreshItemFromAX: |
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| 127 | push cx |
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| 128 | mov cx, ax ; Backup item to CX |
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| 129 | |
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| 130 | call MenuScrollbars_IsItemInCXonVisiblePage |
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| 131 | jnc SHORT .InvalidItem |
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[52] | 132 | call MenuText_AdjustDisplayContextForDrawingItemFromCX |
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[41] | 133 | call MenuEvent_RefreshItemFromCX |
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| 134 | call DrawScrollbarIfNecessary |
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| 135 | .InvalidItem: |
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| 136 | xchg ax, cx ; Restore AX |
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| 137 | pop cx |
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| 138 | ret |
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| 139 | |
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| 140 | ;-------------------------------------------------------------------- |
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[52] | 141 | ; MenuText_AdjustDisplayContextForDrawingItemFromCX |
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[41] | 142 | ; Parameters |
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[52] | 143 | ; CX: Item to refresh |
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[41] | 144 | ; SS:BP: Ptr to MENU |
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| 145 | ; Returns: |
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[52] | 146 | ; Nothing |
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[41] | 147 | ; Corrupts registers: |
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[52] | 148 | ; AX, BX, DX, SI, DI |
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[41] | 149 | ;-------------------------------------------------------------------- |
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| 150 | ALIGN JUMP_ALIGN |
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[52] | 151 | MenuText_AdjustDisplayContextForDrawingItemFromCX: |
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| 152 | mov ax, cx |
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| 153 | call GetItemTextAttributeTypeToSIforItemInCX |
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[41] | 154 | call MenuLocation_GetTextCoordinatesToAXforItemInAX |
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[52] | 155 | mov dx, MenuCharOut_MenuTeletypeOutput |
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| 156 | ; Fall to AdjustDisplayContextForDrawingTextsAtCoordinatesInAXwithAttributeTypeInSI |
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| 157 | |
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| 158 | ;-------------------------------------------------------------------- |
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| 159 | ; AdjustDisplayContextForDrawingTextsAtCoordsInAXwithAttrTypeInSIandCharOutFunctionInDX |
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| 160 | ; Parameters |
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| 161 | ; AX: Cursor coordinates to set |
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| 162 | ; DX: Character output function |
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| 163 | ; SI: Attribute type (from ATTRIBUTE_CHARS) |
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| 164 | ; SS:BP: Ptr to MENU |
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| 165 | ; Returns: |
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| 166 | ; Nothing |
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| 167 | ; Corrupts registers: |
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| 168 | ; AX, BX, DX, SI, DI |
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| 169 | ;-------------------------------------------------------------------- |
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| 170 | ALIGN JUMP_ALIGN |
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| 171 | AdjustDisplayContextForDrawingTextsAtCoordsInAXwithAttrTypeInSIandCharOutFunctionInDX: |
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[41] | 172 | CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX |
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| 173 | |
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[52] | 174 | xchg ax, dx |
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| 175 | mov bl, ATTRIBUTES_ARE_USED |
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| 176 | CALL_DISPLAY_LIBRARY SetCharOutputFunctionFromAXwithAttribFlagInBL |
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| 177 | |
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| 178 | call CharOutLineSplitter_PrepareForPrintingTextLines |
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| 179 | jmp MenuAttribute_SetToDisplayContextFromTypeInSI |
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| 180 | |
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| 181 | |
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[41] | 182 | ;-------------------------------------------------------------------- |
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[52] | 183 | ; GetItemTextAttributeTypeToSIforItemInCX |
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[41] | 184 | ; Parameters |
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| 185 | ; CX: Item to refresh |
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| 186 | ; SS:BP: Ptr to MENU |
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| 187 | ; Returns: |
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| 188 | ; SI: Text attribute type (ATTRIBUTE_CHARS) |
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| 189 | ; Corrupts registers: |
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| 190 | ; Nothing |
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| 191 | ;-------------------------------------------------------------------- |
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| 192 | ALIGN JUMP_ALIGN |
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[52] | 193 | GetItemTextAttributeTypeToSIforItemInCX: |
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[41] | 194 | mov si, ATTRIBUTE_CHARS.cItem |
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| 195 | test BYTE [bp+MENU.bFlags], FLG_MENU_NOHIGHLIGHT |
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| 196 | jnz SHORT .ReturnAttributeTypeInSI |
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[52] | 197 | |
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| 198 | cmp cx, [bp+MENUINIT.wHighlightedItem] |
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[41] | 199 | jne SHORT .ReturnAttributeTypeInSI |
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| 200 | sub si, BYTE ATTRIBUTE_CHARS.cItem - ATTRIBUTE_CHARS.cHighlightedItem |
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| 201 | ALIGN JUMP_ALIGN, ret |
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| 202 | .ReturnAttributeTypeInSI: |
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| 203 | ret |
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| 204 | |
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| 205 | |
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| 206 | ;-------------------------------------------------------------------- |
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| 207 | ; DrawScrollbarIfNecessary |
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| 208 | ; Parameters |
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| 209 | ; CX: Item to refresh |
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| 210 | ; SS:BP: Ptr to MENU |
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| 211 | ; Returns: |
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| 212 | ; Nothing |
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| 213 | ; Corrupts registers: |
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[48] | 214 | ; AX, BX, DX, SI, DI |
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[41] | 215 | ;-------------------------------------------------------------------- |
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| 216 | ALIGN JUMP_ALIGN |
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| 217 | DrawScrollbarIfNecessary: |
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| 218 | push cx |
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| 219 | call .DrawSpacesBeforeScrollbarCharacter |
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| 220 | call MenuScrollbars_AreScrollbarsNeeded |
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| 221 | pop cx |
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| 222 | jc SHORT .DrawScrollbarCharacter |
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| 223 | ret |
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| 224 | |
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| 225 | ;-------------------------------------------------------------------- |
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| 226 | ; .DrawSpacesBeforeScrollbarCharacter |
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| 227 | ; Parameters |
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| 228 | ; CX: Item to refresh |
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| 229 | ; SS:BP: Ptr to MENU |
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| 230 | ; Returns: |
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| 231 | ; Nothing |
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| 232 | ; Corrupts registers: |
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| 233 | ; AX, CX, DX, DI |
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| 234 | ;-------------------------------------------------------------------- |
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| 235 | ALIGN JUMP_ALIGN |
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| 236 | .DrawSpacesBeforeScrollbarCharacter: |
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| 237 | CALL_DISPLAY_LIBRARY GetSoftwareCoordinatesToAX |
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| 238 | xchg dx, ax ; Current coordinates to DX |
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| 239 | mov ax, cx |
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| 240 | call MenuLocation_GetScrollbarCoordinatesToAXforItemInAX |
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| 241 | sub al, dl |
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| 242 | sub al, MENU_TEXT_COLUMN_OFFSET/2 |
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| 243 | |
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| 244 | eMOVZX cx, al |
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| 245 | jcxz .NoSpacesNeeded |
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| 246 | mov al, ' ' |
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| 247 | CALL_DISPLAY_LIBRARY PrintRepeatedCharacterFromALwithCountInCX |
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| 248 | ALIGN JUMP_ALIGN, ret |
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| 249 | .NoSpacesNeeded: |
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| 250 | ret |
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| 251 | |
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| 252 | ;-------------------------------------------------------------------- |
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| 253 | ; .DrawScrollbarCharacter |
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| 254 | ; Parameters |
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| 255 | ; CX: Item to refresh |
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| 256 | ; SS:BP: Ptr to MENU |
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| 257 | ; Returns: |
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| 258 | ; Nothing |
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| 259 | ; Corrupts registers: |
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[48] | 260 | ; AX, BX, DX, SI, DI |
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[41] | 261 | ;-------------------------------------------------------------------- |
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| 262 | ALIGN JUMP_ALIGN |
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| 263 | .DrawScrollbarCharacter: |
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| 264 | push cx |
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| 265 | |
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[48] | 266 | call MenuBorders_AdjustDisplayContextForDrawingBorders |
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[41] | 267 | |
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| 268 | mov ax, cx |
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| 269 | call MenuLocation_GetScrollbarCoordinatesToAXforItemInAX |
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| 270 | CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX |
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| 271 | |
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| 272 | mov di, cx |
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| 273 | sub di, [bp+MENU.wFirstVisibleItem] ; Item to line |
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| 274 | call MenuScrollbars_GetScrollCharacterToALForLineInDI |
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| 275 | CALL_DISPLAY_LIBRARY PrintCharacterFromAL |
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| 276 | |
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| 277 | pop cx |
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| 278 | ret |
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