1 | ; Project name : Assembly Library |
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2 | ; Description : Displays message dialog. |
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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, 2011-2013 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 | ; DialogMessage_DisplayMessageWithInputInDSSI |
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26 | ; Parameters: |
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27 | ; DS:SI: Ptr to DIALOG_INPUT |
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28 | ; SS:BP: Ptr to parent 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 | ALIGN JUMP_ALIGN |
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35 | DialogMessage_DisplayMessageWithInputInDSSI: |
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36 | mov bx, MessageEventHandler |
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37 | jmp Dialog_DisplayWithDialogInputInDSSIandHandlerInBX |
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38 | |
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39 | |
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40 | ;-------------------------------------------------------------------- |
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41 | ; MessageEventHandler |
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42 | ; Common parameters for all events: |
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43 | ; BX: Menu event (anything from MENUEVENT struct) |
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44 | ; SS:BP: Ptr to DIALOG |
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45 | ; Common return values for all events: |
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46 | ; CF: Set if event processed |
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47 | ; Cleared if event not processed |
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48 | ; Corrupts registers: |
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49 | ; All |
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50 | ;-------------------------------------------------------------------- |
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51 | ALIGN JUMP_ALIGN |
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52 | MessageEventHandler: |
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53 | jmp [cs:bx+.rgfnEventHandlers] |
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54 | |
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55 | |
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56 | ALIGN JUMP_ALIGN |
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57 | .InitializeMenuinitFromDSSI: |
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58 | or BYTE [bp+MENU.bFlags], FLG_MENU_USER_HANDLES_SCROLLING | FLG_MENU_NOHIGHLIGHT |
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59 | xor ax, ax ; Cannot be NO_ITEM_HIGHLIGHTED because of scrolling |
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60 | jmp Dialog_EventInitializeMenuinitFromDSSIwithHighlightedItemInAX |
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61 | |
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62 | |
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63 | ALIGN JUMP_ALIGN |
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64 | .KeyStrokeInAX: |
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65 | call ProcessMessageScrollingKeysFromAX |
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66 | stc |
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67 | ret |
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68 | |
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69 | |
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70 | ALIGN WORD_ALIGN |
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71 | .rgfnEventHandlers: |
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72 | istruc MENUEVENT |
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73 | at MENUEVENT.InitializeMenuinitFromDSSI, dw .InitializeMenuinitFromDSSI |
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74 | at MENUEVENT.ExitMenu, dw Dialog_EventExitMenu |
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75 | at MENUEVENT.IdleProcessing, dw Dialog_EventNotHandled |
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76 | at MENUEVENT.ItemHighlightedFromCX, dw Dialog_EventNotHandled |
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77 | at MENUEVENT.ItemSelectedFromCX, dw Dialog_EventAnyThatClosesDialog |
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78 | at MENUEVENT.KeyStrokeInAX, dw .KeyStrokeInAX |
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79 | at MENUEVENT.RefreshTitle, dw Dialog_EventRefreshTitle |
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80 | at MENUEVENT.RefreshInformation, dw Dialog_EventRefreshInformation |
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81 | at MENUEVENT.RefreshItemFromCX, dw Dialog_EventRefreshItemFromCX |
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82 | iend |
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83 | |
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84 | |
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85 | ;-------------------------------------------------------------------- |
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86 | ; ProcessMessageScrollingKeysFromAX |
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87 | ; Parameters |
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88 | ; AL: ASCII character |
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89 | ; AH: BIOS scan code |
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90 | ; SS:BP: Ptr to DIALOG |
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91 | ; Returns: |
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92 | ; Nothing |
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93 | ; Corrupts registers: |
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94 | ; BX, CX, DX, SI, DI |
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95 | ;-------------------------------------------------------------------- |
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96 | ALIGN JUMP_ALIGN |
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97 | ProcessMessageScrollingKeysFromAX: |
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98 | cmp ah, MENU_KEY_UP |
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99 | je SHORT .DecrementLines |
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100 | cmp ah, MENU_KEY_DOWN |
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101 | je SHORT .IncrementLines |
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102 | jmp MenuLoop_ProcessScrollingKeysFromAX |
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103 | |
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104 | ALIGN JUMP_ALIGN |
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105 | .DecrementLines: |
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106 | cmp WORD [bp+MENUINIT.wHighlightedItem], BYTE 0 |
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107 | je SHORT .AlreadyAtTheTopOrBottom |
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108 | |
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109 | mov ax, [bp+MENU.wFirstVisibleItem] |
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110 | mov [bp+MENUINIT.wHighlightedItem], ax |
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111 | mov ah, MENU_KEY_UP |
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112 | jmp MenuLoop_ProcessScrollingKeysFromAX |
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113 | |
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114 | ALIGN JUMP_ALIGN |
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115 | .IncrementLines: |
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116 | mov ax, [bp+MENUINIT.wItems] |
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117 | dec ax ; Last possible item to highlight |
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118 | cmp [bp+MENUINIT.wHighlightedItem], ax |
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119 | jae SHORT .AlreadyAtTheTopOrBottom |
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120 | |
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121 | call MenuScrollbars_GetLastVisibleItemOnPageToAX |
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122 | mov [bp+MENUINIT.wHighlightedItem], ax |
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123 | mov ah, MENU_KEY_DOWN |
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124 | jmp MenuLoop_ProcessScrollingKeysFromAX |
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125 | |
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126 | ALIGN JUMP_ALIGN |
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127 | .AlreadyAtTheTopOrBottom: |
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128 | ret |
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