| 1 | ; Project name : Assembly Library
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| 2 | ; Description : Functions for drawing menu texts by the user.
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| 3 |
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| 4 | ;
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| 5 | ; XTIDE Universal BIOS and Associated Tools
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| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 by XTIDE Universal BIOS Team.
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| 7 | ;
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| 8 | ; This program is free software; you can redistribute it and/or modify
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| 9 | ; it under the terms of the GNU General Public License as published by
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| 10 | ; the Free Software Foundation; either version 2 of the License, or
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| 11 | ; (at your option) any later version.
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| 12 | ;
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| 13 | ; This program is distributed in the hope that it will be useful,
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| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | ; GNU General Public License for more details.
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| 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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| 18 | ;
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| 19 |
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| 20 |
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| 21 | ; Section containing code
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| 22 | SECTION .text
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| 23 |
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| 24 | ;--------------------------------------------------------------------
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| 25 | ; MenuText_ClearTitleArea
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| 26 | ; MenuText_ClearInformationArea
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| 27 | ; Parameters
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| 28 | ; SS:BP: Ptr to MENU
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| 29 | ; Returns:
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| 30 | ; Nothing
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| 31 | ; Corrupts registers:
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| 32 | ; AX, BX, CX, DX, SI, DI
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| 33 | ;--------------------------------------------------------------------
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| 34 | %ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
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| 35 | ALIGN MENU_JUMP_ALIGN
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| 36 | MenuText_ClearTitleArea:
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| 37 | CALL_DISPLAY_LIBRARY PushDisplayContext ; Save cursor coordinates
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| 38 | call PrepareToDrawTitleArea
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| 39 | mov cl, [bp+MENUINIT.bTitleLines]
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| 40 | jmp SHORT MenuText_ClearInformationArea.ClearCLlinesOfText
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| 41 | %endif
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| 42 |
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| 43 | ALIGN MENU_JUMP_ALIGN
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| 44 | MenuText_ClearInformationArea:
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| 45 | CALL_DISPLAY_LIBRARY PushDisplayContext ; Save cursor coordinates
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| 46 | call MenuText_PrepareToDrawInformationArea
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| 47 | mov cl, [bp+MENUINIT.bInfoLines]
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| 48 | .ClearCLlinesOfText:
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| 49 | mov al, [bp+MENUINIT.bWidth]
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| 50 | sub al, MENU_HORIZONTAL_BORDER_LINES+(MENU_TEXT_COLUMN_OFFSET/2)
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| 51 | mul cl
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| 52 | xchg cx, ax
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| 53 | mov al, ' '
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| 54 | CALL_DISPLAY_LIBRARY PrintRepeatedCharacterFromALwithCountInCX
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| 55 | CALL_DISPLAY_LIBRARY PopDisplayContext
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| 56 | ret
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| 57 |
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| 58 |
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| 59 | ;--------------------------------------------------------------------
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| 60 | ; MenuText_RefreshTitle
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| 61 | ; MenuText_RefreshInformation
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| 62 | ; Parameters
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| 63 | ; SS:BP: Ptr to MENU
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| 64 | ; Returns:
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| 65 | ; Nothing
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| 66 | ; Corrupts registers:
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| 67 | ; AX, BX, CX, DX, SI, DI
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| 68 | ;--------------------------------------------------------------------
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| 69 | ALIGN MENU_JUMP_ALIGN
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| 70 | MenuText_RefreshTitle:
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| 71 | cmp BYTE [bp+MENUINIT.bTitleLines], 0
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| 72 | jz SHORT NothingToRefresh
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| 73 | call PrepareToDrawTitleArea
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| 74 | jmp MenuEvent_RefreshTitle
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| 75 |
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| 76 | ALIGN MENU_JUMP_ALIGN
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| 77 | MenuText_RefreshInformation:
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| 78 | cmp BYTE [bp+MENUINIT.bInfoLines], 0
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| 79 | jz SHORT NothingToRefresh
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| 80 | call MenuText_PrepareToDrawInformationArea
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| 81 | jmp MenuEvent_RefreshInformation
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| 82 |
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| 83 | ;--------------------------------------------------------------------
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| 84 | ; PrepareToDrawTitleArea
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| 85 | ; PrepareToDrawInformationArea
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| 86 | ; Parameters
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| 87 | ; SS:BP: Ptr to MENU
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| 88 | ; Returns:
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| 89 | ; Nothing
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| 90 | ; Corrupts registers:
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| 91 | ; AX, BX, DX, SI, DI
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| 92 | ;--------------------------------------------------------------------
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| 93 | ALIGN MENU_JUMP_ALIGN
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| 94 | PrepareToDrawTitleArea:
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| 95 | mov si, ATTRIBUTE_CHARS.cTitle
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| 96 | call MenuLocation_GetTitleTextTopLeftCoordinatesToAX
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| 97 | jmp SHORT FinishPreparationsToDrawTitleOrInformationArea
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| 98 |
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| 99 | ALIGN MENU_JUMP_ALIGN
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| 100 | MenuText_PrepareToDrawInformationArea:
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| 101 | mov si, ATTRIBUTE_CHARS.cInformation
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| 102 | call MenuLocation_GetInformationTextTopLeftCoordinatesToAX
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| 103 | FinishPreparationsToDrawTitleOrInformationArea:
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| 104 | mov dx, MenuCharOut_MenuTeletypeOutputWithAutomaticLineChange
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| 105 | jmp SHORT AdjustDisplayContextForDrawingTextsAtCoordsInAXwithAttrTypeInSIandCharOutFunctionInDX
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| 106 |
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| 107 |
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| 108 | ;--------------------------------------------------------------------
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| 109 | ; MenuText_RefreshAllItems
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| 110 | ; Parameters
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| 111 | ; SS:BP: Ptr to MENU
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| 112 | ; Returns:
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| 113 | ; Nothing
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| 114 | ; Corrupts registers:
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| 115 | ; AX, BX, DX, SI, DI
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| 116 | ;--------------------------------------------------------------------
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| 117 | ALIGN MENU_JUMP_ALIGN
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| 118 | MenuText_RefreshAllItems:
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| 119 | push cx
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| 120 |
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| 121 | call MenuScrollbars_GetActualVisibleItemsOnPageToCX
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| 122 | mov ax, [bp+MENU.wFirstVisibleItem]
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| 123 | ALIGN MENU_JUMP_ALIGN
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| 124 | .ItemRefreshLoop:
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| 125 | call MenuText_RefreshItemFromAX
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| 126 | inc ax
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| 127 | loop .ItemRefreshLoop
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| 128 |
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| 129 | pop cx
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| 130 | NothingToRefresh:
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| 131 | ret
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| 132 |
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| 133 | ;--------------------------------------------------------------------
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| 134 | ; MenuText_RefreshItemFromAX
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| 135 | ; Parameters
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| 136 | ; AX: Item to refresh
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| 137 | ; SS:BP: Ptr to MENU
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| 138 | ; Returns:
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| 139 | ; Nothing
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| 140 | ; Corrupts registers:
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| 141 | ; BX, DX, SI, DI
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| 142 | ;--------------------------------------------------------------------
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| 143 | ALIGN MENU_JUMP_ALIGN
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| 144 | MenuText_RefreshItemFromAX:
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| 145 | push cx
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| 146 | push ax
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| 147 |
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| 148 | xchg cx, ax
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| 149 | call MenuScrollbars_IsItemInCXonVisiblePage
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| 150 | jnc SHORT .InvalidItem
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| 151 | call MenuText_AdjustDisplayContextForDrawingItemFromCX
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| 152 | call ClearPreviousItem
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| 153 | call MenuEvent_RefreshItemFromCX
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| 154 | call DrawScrollbarCharacterForItemInCXifNecessary
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| 155 | .InvalidItem:
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| 156 | pop ax
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| 157 | pop cx
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| 158 | ret
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| 159 |
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| 160 | ;--------------------------------------------------------------------
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| 161 | ; MenuText_AdjustDisplayContextForDrawingItemFromCX
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| 162 | ; Parameters
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| 163 | ; CX: Item to refresh
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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 MENU_JUMP_ALIGN
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| 171 | MenuText_AdjustDisplayContextForDrawingItemFromCX:
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| 172 | mov ax, cx
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| 173 | call GetItemTextAttributeTypeToSIforItemInCX
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| 174 | call MenuLocation_GetTextCoordinatesToAXforItemInAX
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| 175 | mov dx, MenuCharOut_MenuTeletypeOutput
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| 176 | ; Fall to AdjustDisplayContextForDrawingTextsAtCoordsInAXwithAttrTypeInSIandCharOutFunctionInDX
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| 177 |
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| 178 | ;--------------------------------------------------------------------
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| 179 | ; AdjustDisplayContextForDrawingTextsAtCoordsInAXwithAttrTypeInSIandCharOutFunctionInDX
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| 180 | ; Parameters
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| 181 | ; AX: Cursor coordinates to set
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| 182 | ; DX: Character output function
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| 183 | ; SI: Attribute type (from ATTRIBUTE_CHARS)
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| 184 | ; SS:BP: Ptr to MENU
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| 185 | ; Returns:
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| 186 | ; Nothing
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| 187 | ; Corrupts registers:
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| 188 | ; AX, BX, DX, SI, DI
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| 189 | ;--------------------------------------------------------------------
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| 190 | ALIGN MENU_JUMP_ALIGN
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| 191 | AdjustDisplayContextForDrawingTextsAtCoordsInAXwithAttrTypeInSIandCharOutFunctionInDX:
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| 192 | CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
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| 193 |
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| 194 | xchg ax, dx
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| 195 | mov bl, ATTRIBUTES_ARE_USED
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| 196 | CALL_DISPLAY_LIBRARY SetCharOutputFunctionFromAXwithAttribFlagInBL
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| 197 |
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| 198 | call CharOutLineSplitter_PrepareForPrintingTextLines
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| 199 | jmp MenuAttribute_SetToDisplayContextFromTypeInSI
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| 200 |
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| 201 |
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| 202 | ;--------------------------------------------------------------------
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| 203 | ; ClearPreviousItem
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| 204 | ; Parameters
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| 205 | ; SS:BP: Ptr to MENU
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| 206 | ; Returns:
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| 207 | ; Nothing
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| 208 | ; Corrupts registers:
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| 209 | ; AX, BX, DX, DI
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| 210 | ;--------------------------------------------------------------------
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| 211 | ALIGN MENU_JUMP_ALIGN
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| 212 | ClearPreviousItem:
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| 213 | CALL_DISPLAY_LIBRARY GetSoftwareCoordinatesToAX
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| 214 | xchg bx, ax
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| 215 |
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| 216 | call MenuBorders_GetNumberOfMiddleCharactersToDX
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| 217 | sub dx, BYTE MENU_TEXT_COLUMN_OFFSET
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| 218 | mov al, [cs:g_rgbTextBorderCharacters+BORDER_CHARS.cMiddle]
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| 219 | call MenuBorders_PrintMultipleBorderCharactersFromAL
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| 220 |
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| 221 | xchg ax, bx
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| 222 | CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
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| 223 | ret
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| 224 |
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| 225 |
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| 226 | ;--------------------------------------------------------------------
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| 227 | ; GetItemTextAttributeTypeToSIforItemInCX
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| 228 | ; Parameters
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| 229 | ; CX: Item to refresh
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| 230 | ; SS:BP: Ptr to MENU
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| 231 | ; Returns:
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| 232 | ; SI: Text attribute type (ATTRIBUTE_CHARS)
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| 233 | ; Corrupts registers:
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| 234 | ; Nothing
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| 235 | ;--------------------------------------------------------------------
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| 236 | ALIGN MENU_JUMP_ALIGN
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| 237 | GetItemTextAttributeTypeToSIforItemInCX:
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| 238 | mov si, ATTRIBUTE_CHARS.cItem
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| 239 | test BYTE [bp+MENU.bFlags], FLG_MENU_NOHIGHLIGHT
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| 240 | jnz SHORT .ReturnAttributeTypeInSI
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| 241 |
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| 242 | cmp cx, [bp+MENUINIT.wHighlightedItem]
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| 243 | jne SHORT .ReturnAttributeTypeInSI
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| 244 | sub si, BYTE ATTRIBUTE_CHARS.cItem - ATTRIBUTE_CHARS.cHighlightedItem
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| 245 | ALIGN MENU_JUMP_ALIGN, ret
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| 246 | .ReturnAttributeTypeInSI:
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| 247 | ret
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| 248 |
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| 249 |
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| 250 | ;--------------------------------------------------------------------
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| 251 | ; DrawScrollbarCharacterForItemInCXifNecessary
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| 252 | ; Parameters
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| 253 | ; CX: Item to refresh
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| 254 | ; SS:BP: Ptr to MENU
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| 255 | ; Returns:
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| 256 | ; Nothing
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| 257 | ; Corrupts registers:
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| 258 | ; AX, CX, BX, DX, SI, DI
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| 259 | ;--------------------------------------------------------------------
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| 260 | ALIGN MENU_JUMP_ALIGN
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| 261 | DrawScrollbarCharacterForItemInCXifNecessary:
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| 262 | call MenuScrollbars_AreScrollbarsNeeded
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| 263 | jc SHORT .DrawScrollbarCharacter
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| 264 | ret
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| 265 |
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| 266 | ALIGN MENU_JUMP_ALIGN
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| 267 | .DrawScrollbarCharacter:
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| 268 | call MenuBorders_AdjustDisplayContextForDrawingBorders
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| 269 | mov ax, cx
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| 270 |
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| 271 | call MenuLocation_GetTextCoordinatesToAXforItemInAX
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| 272 | add al, [bp+MENUINIT.bWidth]
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| 273 | sub al, MENU_TEXT_COLUMN_OFFSET*2
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| 274 | CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
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| 275 |
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| 276 | mov di, cx
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| 277 | sub di, [bp+MENU.wFirstVisibleItem] ; Item to line
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| 278 | call MenuScrollbars_GetScrollCharacterToALForLineInDI
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| 279 | jmp MenuBorders_PrintSingleBorderCharacterFromAL
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