1 | ; Project name : Assembly Library |
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2 | ; Description : Functions for calculation menu window dimensions. |
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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 | ; MenuLocation_GetTextCoordinatesToAXforItemInAX |
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26 | ; Parameters |
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27 | ; AX: Item index |
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28 | ; SS:BP: Ptr to MENU |
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29 | ; Returns: |
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30 | ; AL: Column (X) |
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31 | ; AH: Row (Y) |
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32 | ; Corrupts registers: |
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33 | ; Nothing |
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34 | ;-------------------------------------------------------------------- |
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35 | ALIGN MENU_JUMP_ALIGN |
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36 | MenuLocation_GetTextCoordinatesToAXforItemInAX: |
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37 | sub ax, [bp+MENU.wFirstVisibleItem] ; Item to line |
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38 | xchg al, ah ; Line to AH, clear AL |
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39 | add ax, (MENU_TEXT_ROW_OFFSET<<8) | MENU_TEXT_COLUMN_OFFSET |
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40 | SKIP2B f ; cmp ax, <next instruction> |
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41 | ; Fall to MenuLocation_GetItemBordersTopLeftCoordinatesToAX |
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42 | |
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43 | ;-------------------------------------------------------------------- |
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44 | ; MenuLocation_GetItemBordersTopLeftCoordinatesToAX |
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45 | ; MenuLocation_GetTitleTextTopLeftCoordinatesToAX |
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46 | ; MenuLocation_GetTitleBordersTopLeftCoordinatesToAX |
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47 | ; MenuLocation_GetInformationTextTopLeftCoordinatesToAX |
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48 | ; MenuLocation_GetBottomBordersTopLeftCoordinatesToAX |
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49 | ; Parameters |
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50 | ; SS:BP: Ptr to MENU |
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51 | ; Returns: |
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52 | ; AL: Column (X) |
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53 | ; AH: Row (Y) |
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54 | ; Corrupts registers: |
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55 | ; Nothing |
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56 | ;-------------------------------------------------------------------- |
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57 | MenuLocation_GetItemBordersTopLeftCoordinatesToAX: |
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58 | xor ax, ax |
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59 | jmp SHORT AddItemBordersTopLeftCoordinatesToAX |
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60 | |
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61 | ALIGN MENU_JUMP_ALIGN |
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62 | MenuLocation_GetTitleTextTopLeftCoordinatesToAX: |
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63 | mov ax, (MENU_TEXT_ROW_OFFSET<<8) | MENU_TEXT_COLUMN_OFFSET |
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64 | SKIP2B f ; cmp ax, <next instruction> |
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65 | MenuLocation_GetTitleBordersTopLeftCoordinatesToAX: |
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66 | xor ax, ax |
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67 | jmp SHORT MenuLocation_AddTitleBordersTopLeftCoordinatesToAX |
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68 | |
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69 | ALIGN MENU_JUMP_ALIGN |
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70 | MenuLocation_GetInformationTextTopLeftCoordinatesToAX: |
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71 | mov ax, (MENU_TEXT_ROW_OFFSET<<8) | MENU_TEXT_COLUMN_OFFSET |
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72 | jmp SHORT AddInformationBordersTopLeftCoordinatesToAX |
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73 | |
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74 | ALIGN MENU_JUMP_ALIGN |
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75 | MenuLocation_GetBottomBordersTopLeftCoordinatesToAX: |
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76 | xor ax, ax |
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77 | ; Fall to .AddBottomBordersTopLeftCoordinatesToAX |
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78 | |
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79 | ;-------------------------------------------------------------------- |
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80 | ; .AddBottomBordersTopLeftCoordinatesToAX |
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81 | ; AddInformationBordersTopLeftCoordinatesToAX |
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82 | ; AddItemBordersTopLeftCoordinatesToAX |
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83 | ; MenuLocation_AddTitleBordersTopLeftCoordinatesToAX |
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84 | ; Parameters |
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85 | ; AX: Zero of offset |
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86 | ; SS:BP: Ptr to MENU |
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87 | ; Returns: |
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88 | ; AL: Column (X) |
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89 | ; AH: Row (Y) |
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90 | ; Corrupts registers: |
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91 | ; Nothing |
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92 | ;-------------------------------------------------------------------- |
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93 | .AddBottomBordersTopLeftCoordinatesToAX: |
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94 | stc ; Compensate for Information top border |
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95 | adc ah, [bp+MENUINIT.bInfoLines] |
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96 | ALIGN MENU_JUMP_ALIGN |
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97 | AddInformationBordersTopLeftCoordinatesToAX: |
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98 | push cx |
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99 | call MenuScrollbars_GetMaxVisibleItemsOnPageToCX |
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100 | inc cx ; Compensate for Items top border |
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101 | add ah, cl |
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102 | pop cx |
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103 | ALIGN MENU_JUMP_ALIGN |
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104 | AddItemBordersTopLeftCoordinatesToAX: |
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105 | stc ; Compensate for Title top border |
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106 | adc ah, [bp+MENUINIT.bTitleLines] |
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107 | ALIGN MENU_JUMP_ALIGN |
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108 | MenuLocation_AddTitleBordersTopLeftCoordinatesToAX: |
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109 | push di |
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110 | push ax |
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111 | CALL_DISPLAY_LIBRARY GetColumnsToALandRowsToAH |
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112 | sub al, [bp+MENUINIT.bWidth] |
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113 | sub ah, [bp+MENUINIT.bHeight] |
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114 | shr al, 1 |
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115 | shr ah, 1 |
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116 | pop di ; Old AX to DI |
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117 | add ax, di ; Add old AX to menu top left coordinates |
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118 | pop di |
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119 | ret |
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120 | |
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121 | |
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122 | ;-------------------------------------------------------------------- |
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123 | ; MenuLocation_GetMaxTextLineLengthToAX |
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124 | ; Parameters |
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125 | ; SS:BP: Ptr to MENU |
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126 | ; Returns: |
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127 | ; AX: Maximum text line length in characters |
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128 | ; Corrupts registers: |
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129 | ; Nothing |
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130 | ;-------------------------------------------------------------------- |
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131 | ALIGN MENU_JUMP_ALIGN |
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132 | MenuLocation_GetMaxTextLineLengthToAX: |
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133 | eMOVZX ax, [bp+MENUINIT.bWidth] |
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134 | sub ax, BYTE MENU_HORIZONTAL_BORDER_LINES + MENU_TEXT_COLUMN_OFFSET |
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135 | ret |
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