[2] | 1 | ; File name : MenuEvent.asm |
---|
| 2 | ; Project name : XTIDE Univeral BIOS Configurator |
---|
| 3 | ; Created date : 16.4.2010 |
---|
| 4 | ; Last update : 29.4.2010 |
---|
| 5 | ; Author : Tomi Tilli |
---|
| 6 | ; Description : Handlers for menu library events. |
---|
| 7 | |
---|
| 8 | ; Section containing code |
---|
| 9 | SECTION .text |
---|
| 10 | |
---|
| 11 | ;-------------------------------------------------------------------- |
---|
| 12 | ; Main event handler for all incoming events. |
---|
| 13 | ; |
---|
| 14 | ; MenuEvent_Handler |
---|
| 15 | ; Parameters: |
---|
| 16 | ; BX: Callback event |
---|
| 17 | ; CX: Menuitem index (usually index of selected Menuitem) |
---|
| 18 | ; DX: Event parameter (event specific) |
---|
| 19 | ; SS:BP: Ptr to MENUVARS |
---|
| 20 | ; Returns: |
---|
| 21 | ; AH: Event specific or unused. Set to 0 if unused. |
---|
| 22 | ; AL: 1=Event processed |
---|
| 23 | ; 0=Event not processed (default action if any) |
---|
| 24 | ; Corrupts registers: |
---|
| 25 | ; BX, CX, DX |
---|
| 26 | ;-------------------------------------------------------------------- |
---|
| 27 | ALIGN JUMP_ALIGN |
---|
| 28 | MenuEvent_Handler: |
---|
| 29 | push es |
---|
| 30 | push ds |
---|
| 31 | push di |
---|
| 32 | push si |
---|
| 33 | |
---|
| 34 | xor ax, ax ; Event not processed |
---|
| 35 | cmp bx, BYTE EVNT_MNU_INITDONE ; Event in jump table? |
---|
| 36 | ja SHORT .Return |
---|
| 37 | shl bx, 1 |
---|
| 38 | call [cs:bx+.rgwEventJmp] |
---|
| 39 | .Return: |
---|
| 40 | pop si |
---|
| 41 | pop di |
---|
| 42 | pop ds |
---|
| 43 | pop es |
---|
| 44 | ret |
---|
| 45 | ALIGN WORD_ALIGN |
---|
| 46 | .rgwEventJmp: |
---|
| 47 | dw MenuEvent_Exit ; 0, EVNT_MNU_EXIT (Menu will quit) |
---|
| 48 | dw MenuEvent_EventItemSelectionChanged ; 1, EVNT_MMU_SELCHG (Menuitem selection changed (with arrows)) |
---|
| 49 | dw MenuEvent_EventItemSelected ; 2, EVNT_MNU_SELSET (Menuitem selected (with Enter)) |
---|
| 50 | dw MenuEvent_EventKeyPressed ; 3, EVNT_MNU_KEY (Keyboard key pressed) |
---|
| 51 | dw MenuEvent_EventMenuDraw ; 4, EVNT_MNU_UPD (Menu needs to be updated) |
---|
| 52 | dw MenuEvent_EventGetDefaultMenuitem ; 5, EVNT_MNU_GETDEF (Request menuitem to be selected by default) |
---|
| 53 | dw MenuEvent_EventMenuInitDone ; 6, EVNT_MNU_INITDONE (Menu has been initialized but not yet drawn) |
---|
| 54 | |
---|
| 55 | |
---|
| 56 | ;-------------------------------------------------------------------- |
---|
| 57 | ; Handles Menu Exit notification (EVNT_MNU_EXIT). |
---|
| 58 | ; |
---|
| 59 | ; MenuEvent_Exit |
---|
| 60 | ; Parameters: |
---|
| 61 | ; SS:BP: Ptr to MENUVARS |
---|
| 62 | ; Returns: |
---|
| 63 | ; AH: 1 to cancel exit |
---|
| 64 | ; 0 to allow menu exit |
---|
| 65 | ; AL: 1 = Event processed |
---|
| 66 | ; Corrupts registers: |
---|
| 67 | ; Nothing |
---|
| 68 | ;-------------------------------------------------------------------- |
---|
| 69 | ALIGN JUMP_ALIGN |
---|
| 70 | MenuEvent_Exit: |
---|
| 71 | cmp WORD [bp+MENUVARS.user], g_MenuPageMain ; Exiting main menu? |
---|
| 72 | je SHORT .AskUserAboutQuitting |
---|
| 73 | mov ax, 1 ; Event handled |
---|
| 74 | ret |
---|
| 75 | ALIGN JUMP_ALIGN |
---|
| 76 | .AskUserAboutQuitting: |
---|
| 77 | call BiosFile_SaveUnsavedChanges |
---|
| 78 | mov ax, 1 ; Event handled |
---|
| 79 | ret |
---|
| 80 | |
---|
| 81 | |
---|
| 82 | ;-------------------------------------------------------------------- |
---|
| 83 | ; Handles Menuitem Selection Changed notification (EVNT_MMU_SELCHG). |
---|
| 84 | ; |
---|
| 85 | ; MenuEvent_EventItemSelectionChanged |
---|
| 86 | ; Parameters: |
---|
| 87 | ; CX: Index of selected Menuitem |
---|
| 88 | ; SS:BP: Ptr to MENUVARS |
---|
| 89 | ; Returns: |
---|
| 90 | ; AX: 1 = Event processed |
---|
| 91 | ; Corrupts registers: |
---|
| 92 | ; BX, CX, DX, DI |
---|
| 93 | ;-------------------------------------------------------------------- |
---|
| 94 | ALIGN JUMP_ALIGN |
---|
| 95 | MenuEvent_EventItemSelectionChanged: |
---|
| 96 | mov dl, MFL_UPD_NFO |
---|
| 97 | call Menu_Invalidate ; Invalidate info message |
---|
| 98 | mov ax, 1 ; Event handled |
---|
| 99 | ret |
---|
| 100 | |
---|
| 101 | |
---|
| 102 | ;-------------------------------------------------------------------- |
---|
| 103 | ; Handles Menuitem Selected notification (EVNT_MNU_SELSET). |
---|
| 104 | ; |
---|
| 105 | ; MenuEvent_EventItemSelected |
---|
| 106 | ; Parameters: |
---|
| 107 | ; CX: Index of selected Menuitem |
---|
| 108 | ; SS:BP: Ptr to MENUVARS |
---|
| 109 | ; Returns: |
---|
| 110 | ; AX: 1 = Event processed |
---|
| 111 | ; Corrupts registers: |
---|
| 112 | ; BX, CX, DX, SI, DI, DS, ES |
---|
| 113 | ;-------------------------------------------------------------------- |
---|
| 114 | ALIGN JUMP_ALIGN |
---|
| 115 | MenuEvent_EventItemSelected: |
---|
| 116 | lds si, [bp+MENUVARS.user] ; DS:SI now points to MENUPAGE |
---|
| 117 | call MenuPage_GetMenuPageItemForVisibleIndex ; DS:DI now points to MENUPAGEITEM |
---|
| 118 | jnc SHORT .Return |
---|
| 119 | push cx |
---|
| 120 | call [di+MENUPAGEITEM.fnActivate] |
---|
| 121 | pop cx |
---|
| 122 | jnc SHORT .Return ; No changes |
---|
| 123 | mov dl, MFL_UPD_ITEM | MFL_UPD_NOCLEAR |
---|
| 124 | call Menu_Invalidate ; Invalidate menuitem |
---|
| 125 | .Return: |
---|
| 126 | mov ax, 1 ; Event handled |
---|
| 127 | ret |
---|
| 128 | |
---|
| 129 | |
---|
| 130 | ;-------------------------------------------------------------------- |
---|
| 131 | ; Handles Key pressed notification (EVNT_MNU_KEY). |
---|
| 132 | ; |
---|
| 133 | ; MenuEvent_EventKeyPressed |
---|
| 134 | ; Parameters: |
---|
| 135 | ; CX: Index of currently selected Menuitem |
---|
| 136 | ; DL: ASCII character |
---|
| 137 | ; DH: BIOS Scan Code |
---|
| 138 | ; SS:BP: Ptr to MENUVARS |
---|
| 139 | ; Returns: |
---|
| 140 | ; AX: 1 = Event processed |
---|
| 141 | ; Corrupts registers: |
---|
| 142 | ; BX, CX, DX, SI, DI, DS, ES |
---|
| 143 | ;-------------------------------------------------------------------- |
---|
| 144 | ALIGN JUMP_ALIGN |
---|
| 145 | MenuEvent_EventKeyPressed: |
---|
| 146 | lds si, [bp+MENUVARS.user] ; DS:SI now points to MENUPAGE |
---|
| 147 | call MenuPage_GetMenuPageItemForVisibleIndex ; DS:DI now points to MENUPAGEITEM |
---|
| 148 | jnc SHORT .Return |
---|
| 149 | call MenuEventHotkey_Pressed |
---|
| 150 | .Return: |
---|
| 151 | mov ax, 1 |
---|
| 152 | ret |
---|
| 153 | |
---|
| 154 | |
---|
| 155 | ;-------------------------------------------------------------------- |
---|
| 156 | ; Handles Menu Update notification (EVNT_MNU_UPD). |
---|
| 157 | ; |
---|
| 158 | ; MenuEvent_EventMenuDraw |
---|
| 159 | ; Parameters: |
---|
| 160 | ; CX: Index of Menuitem to update (if MFL_UPD_ITEM or MFL_UPD_NFO set) |
---|
| 161 | ; DL: Update flag (only one): |
---|
| 162 | ; MFL_UPD_TITLE Update Menu Title string(s) |
---|
| 163 | ; MFL_UPD_NFO Update Menu Info string(s) |
---|
| 164 | ; MFL_UPD_ITEM Update Menuitem string |
---|
| 165 | ; SS:BP: Ptr to MENUVARS |
---|
| 166 | ; Returns: |
---|
| 167 | ; AX: Was event processed |
---|
| 168 | ; Corrupts registers: |
---|
| 169 | ; BX, CX, DX, SI, DI, DS, ES |
---|
| 170 | ;-------------------------------------------------------------------- |
---|
| 171 | ALIGN JUMP_ALIGN |
---|
| 172 | MenuEvent_EventMenuDraw: |
---|
| 173 | test dl, MFL_UPD_ITEM ; Need to update Menuitem? |
---|
| 174 | jnz SHORT MenuEvent_DrawMenuitem |
---|
| 175 | test dl, MFL_UPD_NFO ; Need to update Info String(s)? |
---|
| 176 | jnz SHORT MenuEvent_DrawInfo |
---|
| 177 | test dl, MFL_UPD_TITLE ; Need to update Title String(s)? |
---|
| 178 | jnz SHORT MenuEvent_DrawTitle |
---|
| 179 | xor ax, ax |
---|
| 180 | ret |
---|
| 181 | |
---|
| 182 | ;-------------------------------------------------------------------- |
---|
| 183 | ; Draws Menuitem string. Cursor is set to a menuitem location. |
---|
| 184 | ; |
---|
| 185 | ; MenuEvent_DrawMenuitem |
---|
| 186 | ; Parameters: |
---|
| 187 | ; CX: Index of Menuitem to draw |
---|
| 188 | ; SS:BP: Ptr to MENUVARS |
---|
| 189 | ; Returns: |
---|
| 190 | ; AX: Was event processed |
---|
| 191 | ; Corrupts registers: |
---|
| 192 | ; BX, CX, DX, SI, DI, DS, ES |
---|
| 193 | ;-------------------------------------------------------------------- |
---|
| 194 | ALIGN JUMP_ALIGN |
---|
| 195 | MenuEvent_DrawMenuitem: |
---|
| 196 | lds si, [bp+MENUVARS.user] ; DS:SI now points to MENUPAGE |
---|
| 197 | call MenuPage_GetMenuPageItemForVisibleIndex ; DS:DI now points to MENUPAGEITEM |
---|
| 198 | jnc SHORT .Return |
---|
| 199 | call [di+MENUPAGEITEM.fnNameFormat] |
---|
| 200 | .Return: |
---|
| 201 | mov ax, 1 |
---|
| 202 | ret |
---|
| 203 | |
---|
| 204 | ;-------------------------------------------------------------------- |
---|
| 205 | ; Draws information strings. Cursor is set to a first information line. |
---|
| 206 | ; |
---|
| 207 | ; MenuEvent_DrawInfo |
---|
| 208 | ; Parameters: |
---|
| 209 | ; CX: Index of selected menuitem |
---|
| 210 | ; SS:BP: Ptr to MENUVARS |
---|
| 211 | ; Returns: |
---|
| 212 | ; AX: Was event processed |
---|
| 213 | ; Corrupts registers: |
---|
| 214 | ; BX, CX, DX, SI, DI, DS, ES |
---|
| 215 | ;-------------------------------------------------------------------- |
---|
| 216 | ALIGN JUMP_ALIGN |
---|
| 217 | MenuEvent_DrawInfo: |
---|
| 218 | lds si, [bp+MENUVARS.user] ; DS:SI now points to MENUPAGE |
---|
| 219 | call MenuPage_GetMenuPageItemForVisibleIndex ; DS:DI now points to MENUPAGEITEM |
---|
| 220 | jnc SHORT .Return |
---|
| 221 | call MenuPageItem_PrintInfo |
---|
| 222 | .Return: |
---|
| 223 | mov ax, 1 |
---|
| 224 | ret |
---|
| 225 | |
---|
| 226 | ;-------------------------------------------------------------------- |
---|
| 227 | ; Draws title strings. Cursor is set to a first title line. |
---|
| 228 | ; |
---|
| 229 | ; MenuEvent_DrawTitle |
---|
| 230 | ; Parameters: |
---|
| 231 | ; SS:BP: Ptr to MENUVARS |
---|
| 232 | ; Returns: |
---|
| 233 | ; AX: Was event processed |
---|
| 234 | ; Corrupts registers: |
---|
| 235 | ; BX, CX, DX, SI, DI, DS, ES |
---|
| 236 | ;-------------------------------------------------------------------- |
---|
| 237 | ALIGN JUMP_ALIGN |
---|
| 238 | MenuEvent_DrawTitle: |
---|
| 239 | call FormatTitle_String |
---|
| 240 | mov ax, 1 |
---|
| 241 | ret |
---|
| 242 | |
---|
| 243 | |
---|
| 244 | ;-------------------------------------------------------------------- |
---|
| 245 | ; Handles Get Default Menuitem notification (EVNT_MNU_GETDEF). |
---|
| 246 | ; |
---|
| 247 | ; MenuEvent_EventGetDefaultMenuitem |
---|
| 248 | ; Parameters: |
---|
| 249 | ; SS:BP: Ptr to MENUVARS |
---|
| 250 | ; Returns: |
---|
| 251 | ; AX: Was event processed |
---|
| 252 | ; CX: Index of menuitem to set selected |
---|
| 253 | ; Corrupts registers: |
---|
| 254 | ; Nothing |
---|
| 255 | ;-------------------------------------------------------------------- |
---|
| 256 | ALIGN JUMP_ALIGN |
---|
| 257 | MenuEvent_EventGetDefaultMenuitem: |
---|
| 258 | xor ax, ax ; Not processed, default to menuitem 0 |
---|
| 259 | ret |
---|
| 260 | |
---|
| 261 | |
---|
| 262 | ;-------------------------------------------------------------------- |
---|
| 263 | ; Handles Menu Initialized notification (EVNT_MNU_INITDONE). |
---|
| 264 | ; |
---|
| 265 | ; MenuEvent_EventMenuInitDone |
---|
| 266 | ; Parameters: |
---|
| 267 | ; SS:BP: Ptr to MENUVARS |
---|
| 268 | ; Returns: |
---|
| 269 | ; AX: Was event processed |
---|
| 270 | ; Corrupts registers: |
---|
| 271 | ; Nothing |
---|
| 272 | ;-------------------------------------------------------------------- |
---|
| 273 | ALIGN JUMP_ALIGN |
---|
| 274 | MenuEvent_EventMenuInitDone: |
---|
| 275 | mov ax, 1 |
---|
| 276 | ret |
---|