| 1 | ; File name : MenuBorders.asm
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| 2 | ; Project name : Assembly Library
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| 3 | ; Created date : 14.7.2010
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| 4 | ; Last update : 7.9.2010
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| 5 | ; Author : Tomi Tilli
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| 6 | ; Description : Functions for drawing menu borders.
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| 7 |
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| 8 | ; Struct containing border characters for different types of menu window lines
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| 9 | struc BORDER_CHARS
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| 10 | .cLeft resb 1
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| 11 | .cMiddle resb 1
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| 12 | .cRight resb 1
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| 13 | endstruc
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| 14 |
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| 15 |
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| 16 | ; Section containing code
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| 17 | SECTION .text
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| 18 |
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| 19 | ;--------------------------------------------------------------------
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| 20 | ; MenuBorders_RefreshAll
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| 21 | ; Parameters
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| 22 | ; SS:BP: Ptr to MENU
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| 23 | ; Returns:
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| 24 | ; Nothing
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| 25 | ; Corrupts registers:
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| 26 | ; AX, BX, CX, DX, SI, DI
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| 27 | ;--------------------------------------------------------------------
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| 28 | ALIGN JUMP_ALIGN
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| 29 | MenuBorders_RefreshAll:
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| 30 | call MenuBorders_AdjustDisplayContextForDrawingBorders
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| 31 | call GetNumberOfMiddleCharactersToDX
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| 32 | call RefreshTitleBorders
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| 33 | call RefreshItemBorders
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| 34 | call RefreshInformationBorders
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| 35 | call DrawBottomBorderLine
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| 36 | call DrawBottomShadowLine
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| 37 | jmp MenuTime_DrawWithoutUpdating
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| 38 |
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| 39 |
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| 40 | ;--------------------------------------------------------------------
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| 41 | ; MenuBorders_AdjustDisplayContextForDrawingBorders
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| 42 | ; Parameters
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| 43 | ; SS:BP: Ptr to MENU
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| 44 | ; Returns:
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| 45 | ; Nothing
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| 46 | ; Corrupts registers:
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| 47 | ; AX, SI, DI
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| 48 | ;--------------------------------------------------------------------
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| 49 | ALIGN JUMP_ALIGN
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| 50 | MenuBorders_AdjustDisplayContextForDrawingBorders:
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| 51 | mov ax, MenuCharOut_MenuBorderTeletypeOutputWithAttribute
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| 52 | CALL_DISPLAY_LIBRARY SetCharacterOutputFunctionFromAX
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| 53 |
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| 54 | mov ax, bp
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| 55 | CALL_DISPLAY_LIBRARY SetCharacterOutputParameterFromAX
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| 56 |
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| 57 | call MenuLocation_GetTitleBordersTopLeftCoordinatesToAX
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| 58 | CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
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| 59 |
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| 60 | mov si, ATTRIBUTE_CHARS.cBordersAndBackground
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| 61 | jmp MenuAttribute_SetToDisplayContextFromTypeInSI
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| 62 |
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| 63 |
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| 64 | ;--------------------------------------------------------------------
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| 65 | ; MenuBorders_RefreshItemBorders
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| 66 | ; Parameters
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| 67 | ; SS:BP: Ptr to MENU
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| 68 | ; Returns:
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| 69 | ; Nothing
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| 70 | ; Corrupts registers:
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| 71 | ; AX, BX, CX, DX, SI, DI
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| 72 | ;--------------------------------------------------------------------
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| 73 | ALIGN JUMP_ALIGN
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| 74 | MenuBorders_RefreshItemBorders:
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| 75 | call MenuBorders_AdjustDisplayContextForDrawingBorders
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| 76 | call MenuLocation_GetItemBordersTopLeftCoordinatesToAX
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| 77 | CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
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| 78 |
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| 79 | call GetNumberOfMiddleCharactersToDX
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| 80 | jmp SHORT RefreshItemBorders
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| 81 |
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| 82 |
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| 83 | ;--------------------------------------------------------------------
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| 84 | ; GetNumberOfMiddleCharactersToDX
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| 85 | ; Parameters
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| 86 | ; SS:BP: Ptr to MENU
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| 87 | ; Returns:
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| 88 | ; DX: Number of middle border characters when drawing border lines
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| 89 | ; Corrupts registers:
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| 90 | ; Nothing
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| 91 | ;--------------------------------------------------------------------
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| 92 | ALIGN JUMP_ALIGN
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| 93 | GetNumberOfMiddleCharactersToDX:
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| 94 | eMOVZX dx, BYTE [bp+MENUINIT.bWidth]
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| 95 | sub dx, BYTE MENU_HORIZONTAL_BORDER_LINES
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| 96 | ret
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| 97 |
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| 98 |
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| 99 | ;--------------------------------------------------------------------
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| 100 | ; RefreshTitleBorders
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| 101 | ; Parameters
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| 102 | ; DX: Number of times to repeat middle character
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| 103 | ; SS:BP: Ptr to MENU
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| 104 | ; Returns:
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| 105 | ; Nothing
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| 106 | ; Corrupts registers:
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| 107 | ; AX, BX, CX, SI, DI
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| 108 | ;--------------------------------------------------------------------
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| 109 | ALIGN JUMP_ALIGN
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| 110 | RefreshTitleBorders:
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| 111 | call DrawTopBorderLine
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| 112 | eMOVZX cx, BYTE [bp+MENUINIT.bTitleLines]
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| 113 | jmp SHORT DrawTextBorderLinesByCXtimes
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| 114 |
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| 115 | ;--------------------------------------------------------------------
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| 116 | ; RefreshInformationBorders
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| 117 | ; Parameters
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| 118 | ; DX: Number of times to repeat middle character
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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 | ; AX, BX, CX, SI, DI
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| 124 | ;--------------------------------------------------------------------
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| 125 | ALIGN JUMP_ALIGN
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| 126 | RefreshInformationBorders:
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| 127 | call DrawSeparationBorderLine
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| 128 | eMOVZX cx, BYTE [bp+MENUINIT.bInfoLines]
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| 129 | jmp SHORT DrawTextBorderLinesByCXtimes
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| 130 |
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| 131 | ;--------------------------------------------------------------------
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| 132 | ; RefreshItemBorders
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| 133 | ; Parameters
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| 134 | ; DX: Number of times to repeat middle character
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| 135 | ; SS:BP: Ptr to MENU
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| 136 | ; Returns:
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| 137 | ; Nothing
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| 138 | ; Corrupts registers:
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| 139 | ; AX, BX, CX, SI, DI
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| 140 | ;--------------------------------------------------------------------
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| 141 | ALIGN JUMP_ALIGN
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| 142 | RefreshItemBorders:
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| 143 | call DrawSeparationBorderLine
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| 144 | call MenuScrollbars_GetMaxVisibleItemsOnPageToCX
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| 145 | DrawTextBorderLinesByCXtimes:
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| 146 | mov bx, DrawTextBorderLine
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| 147 | ; Fall to DrawBorderLinesByCXtimes
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| 148 |
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| 149 | ;--------------------------------------------------------------------
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| 150 | ; DrawBorderLinesByCXtimes
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| 151 | ; Parameters
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| 152 | ; BX: Offset to border drawing function
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| 153 | ; CX: Number of border lines to draw
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| 154 | ; DX: Number of times to repeat middle character
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| 155 | ; SS:BP: Ptr to MENU
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| 156 | ; Returns:
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| 157 | ; Nothing
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| 158 | ; Corrupts registers:
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| 159 | ; AX, CX, SI, DI
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| 160 | ;--------------------------------------------------------------------
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| 161 | DrawBorderLinesByCXtimes:
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| 162 | jcxz .Return
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| 163 | ALIGN JUMP_ALIGN
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| 164 | .DrawBordersWithFunctionInBX:
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| 165 | call bx
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| 166 | loop .DrawBordersWithFunctionInBX
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| 167 | .Return:
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| 168 | ret
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| 169 |
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| 170 |
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| 171 | ;--------------------------------------------------------------------
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| 172 | ; DrawTopBorderLine
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| 173 | ; DrawSeparationBorderLine
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| 174 | ; DrawBottomBorderLine
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| 175 | ; DrawBottomShadowLine
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| 176 | ; DrawTextBorderLine
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| 177 | ; Parameters
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| 178 | ; DX: Number of times to repeat middle character
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| 179 | ; SS:BP: Ptr to MENU
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| 180 | ; Returns:
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| 181 | ; Nothing
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| 182 | ; Corrupts registers:
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| 183 | ; AX, SI, DI
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| 184 | ;--------------------------------------------------------------------
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| 185 | ALIGN JUMP_ALIGN
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| 186 | DrawTopBorderLine:
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| 187 | mov si, g_rgbTopBorderCharacters
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| 188 | call PrintBorderCharactersFromCSSI
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| 189 | jmp SHORT PrintNewlineToEndBorderLine
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| 190 |
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| 191 | ALIGN JUMP_ALIGN
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| 192 | DrawSeparationBorderLine:
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| 193 | mov si, g_rgbSeparationBorderCharacters
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| 194 | jmp SHORT PrintBorderCharactersFromCSSIandShadowCharacter
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| 195 |
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| 196 | ALIGN JUMP_ALIGN
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| 197 | DrawBottomBorderLine:
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| 198 | mov si, g_rgbBottomBorderCharacters
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| 199 | jmp SHORT PrintBorderCharactersFromCSSIandShadowCharacter
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| 200 |
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| 201 | ALIGN JUMP_ALIGN
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| 202 | DrawBottomShadowLine:
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| 203 | CALL_DISPLAY_LIBRARY GetSoftwareCoordinatesToAX
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| 204 | inc ax ; Increment column
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| 205 | CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
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| 206 | inc dx ; Increment repeat count...
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| 207 | inc dx ; ...for both corner characters
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| 208 | call PrintShadowCharactersByDXtimes
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| 209 | dec dx ; Restore...
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| 210 | dec dx ; ...DX
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| 211 | ret
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| 212 |
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| 213 | ALIGN JUMP_ALIGN
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| 214 | DrawTextBorderLine:
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| 215 | mov si, g_rgbTextBorderCharacters
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| 216 | ; Fall to PrintBorderCharactersFromCSSIandShadowCharacter
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| 217 |
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| 218 | ;--------------------------------------------------------------------
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| 219 | ; PrintBorderCharactersFromCSSIandShadowCharacter
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| 220 | ; Parameters
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| 221 | ; DX: Number of times to repeat middle character
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| 222 | ; CS:SI: Ptr to BORDER_CHARS
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| 223 | ; SS:BP: Ptr to MENU
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| 224 | ; Returns:
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| 225 | ; Nothing
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| 226 | ; Corrupts registers:
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| 227 | ; AX, SI, DI
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| 228 | ;--------------------------------------------------------------------
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| 229 | ALIGN JUMP_ALIGN
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| 230 | PrintBorderCharactersFromCSSIandShadowCharacter:
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| 231 | call PrintBorderCharactersFromCSSI
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| 232 | push dx
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| 233 | mov dx, 1
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| 234 | call PrintShadowCharactersByDXtimes
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| 235 | pop dx
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| 236 | ; Fall to PrintNewlineToEndBorderLine
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| 237 |
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| 238 | ;--------------------------------------------------------------------
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| 239 | ; PrintNewlineToEndBorderLine
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| 240 | ; Parameters
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| 241 | ; SS:BP: Ptr to MENU
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| 242 | ; Returns:
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| 243 | ; Nothing
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| 244 | ; Corrupts registers:
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| 245 | ; AX, DI
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| 246 | ;--------------------------------------------------------------------
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| 247 | ALIGN JUMP_ALIGN
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| 248 | PrintNewlineToEndBorderLine:
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| 249 | CALL_DISPLAY_LIBRARY PrintNewlineCharacters
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| 250 | ret
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| 251 |
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| 252 |
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| 253 | ;--------------------------------------------------------------------
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| 254 | ; PrintShadowCharactersByDXtimes
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| 255 | ; Parameters
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| 256 | ; DX: Number of shadow characters to print
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| 257 | ; SS:BP: Ptr to MENU
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| 258 | ; Returns:
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| 259 | ; Nothing
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| 260 | ; Corrupts registers:
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| 261 | ; AX, SI, DI
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| 262 | ;--------------------------------------------------------------------
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| 263 | ALIGN JUMP_ALIGN
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| 264 | PrintShadowCharactersByDXtimes:
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| 265 | CALL_DISPLAY_LIBRARY PushDisplayContext
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| 266 |
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| 267 | mov si, ATTRIBUTE_CHARS.cShadow
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| 268 | call MenuAttribute_SetToDisplayContextFromTypeInSI
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| 269 |
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| 270 | mov ax, FAST_OUTPUT_WITH_ATTRIBUTE_ONLY
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| 271 | CALL_DISPLAY_LIBRARY SetCharacterOutputFunctionFromAX
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| 272 |
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| 273 | call PrintMultipleBorderCharactersFromAL ; AL does not matter
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| 274 |
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| 275 | CALL_DISPLAY_LIBRARY PopDisplayContext
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| 276 | ret
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| 277 |
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| 278 |
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| 279 | ;--------------------------------------------------------------------
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| 280 | ; PrintBorderCharactersFromCSSI
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| 281 | ; Parameters
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| 282 | ; DX: Number of times to repeat middle character
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| 283 | ; CS:SI: Ptr to BORDER_CHARS
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| 284 | ; SS:BP: Ptr to MENU
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| 285 | ; Returns:
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| 286 | ; Nothing
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| 287 | ; Corrupts registers:
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| 288 | ; AX, SI, DI
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| 289 | ;--------------------------------------------------------------------
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| 290 | ALIGN JUMP_ALIGN
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| 291 | PrintBorderCharactersFromCSSI:
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| 292 | cld
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| 293 | eSEG cs
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| 294 | lodsb ; Load from [si+BORDER_CHARS.cLeft] to AL
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| 295 | call MenuBorders_PrintSingleBorderCharacterFromAL
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| 296 |
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| 297 | eSEG cs
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| 298 | lodsb ; Load from [si+BORDER_CHARS.cMiddle] to AL
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| 299 | call PrintMultipleBorderCharactersFromAL
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| 300 |
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| 301 | eSEG cs
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| 302 | lodsb ; Load from [si+BORDER_CHARS.cRight] to AL
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| 303 | ; Fall to MenuBorders_PrintSingleBorderCharacterFromAL
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| 304 |
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| 305 | ;--------------------------------------------------------------------
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| 306 | ; MenuBorders_PrintSingleBorderCharacterFromAL
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| 307 | ; PrintMultipleBorderCharactersFromAL
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| 308 | ; Parameters
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| 309 | ; AL: Character to print
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| 310 | ; DX: Repeat count (PrintMultipleBorderCharactersFromAL)
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| 311 | ; SS:BP: Ptr to MENU
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| 312 | ; Returns:
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| 313 | ; Nothing
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| 314 | ; Corrupts registers:
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| 315 | ; AX, DI
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| 316 | ;--------------------------------------------------------------------
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| 317 | ALIGN JUMP_ALIGN
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| 318 | MenuBorders_PrintSingleBorderCharacterFromAL:
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| 319 | CALL_DISPLAY_LIBRARY PrintCharacterFromAL
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| 320 | ret
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| 321 |
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| 322 | ALIGN JUMP_ALIGN
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| 323 | PrintMultipleBorderCharactersFromAL:
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| 324 | push cx
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| 325 | mov cx, dx
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| 326 | CALL_DISPLAY_LIBRARY PrintRepeatedCharacterFromALwithCountInCX
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| 327 | pop cx
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| 328 | ret
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| 329 |
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| 330 |
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| 331 |
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| 332 | ; Lookup tables for border characters
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| 333 | g_rgbTopBorderCharacters:
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| 334 | istruc BORDER_CHARS
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| 335 | at BORDER_CHARS.cLeft, db DOUBLE_TOP_LEFT_CORNER
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| 336 | at BORDER_CHARS.cMiddle, db DOUBLE_HORIZONTAL
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| 337 | at BORDER_CHARS.cRight, db DOUBLE_TOP_RIGHT_CORNER
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| 338 | iend
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| 339 |
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| 340 | g_rgbSeparationBorderCharacters:
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| 341 | istruc BORDER_CHARS
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| 342 | at BORDER_CHARS.cLeft, db DOUBLE_VERTICAL_TO_RIGHT_SINGLE
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| 343 | at BORDER_CHARS.cMiddle, db SINGLE_HORIZONTAL
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| 344 | at BORDER_CHARS.cRight, db DOUBLE_VERTICAL_TO_LEFT_SINGLE
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| 345 | iend
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| 346 |
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| 347 | g_rgbBottomBorderCharacters:
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| 348 | istruc BORDER_CHARS
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| 349 | at BORDER_CHARS.cLeft, db DOUBLE_BOTTOM_LEFT_CORNER
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| 350 | at BORDER_CHARS.cMiddle, db DOUBLE_HORIZONTAL
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| 351 | at BORDER_CHARS.cRight, db DOUBLE_BOTTOM_RIGHT_CORNER
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| 352 | iend
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| 353 |
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| 354 | g_rgbTextBorderCharacters:
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| 355 | istruc BORDER_CHARS
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| 356 | at BORDER_CHARS.cLeft, db DOUBLE_VERTICAL
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| 357 | at BORDER_CHARS.cMiddle, db ' '
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| 358 | at BORDER_CHARS.cRight, db DOUBLE_VERTICAL
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| 359 | iend
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