| 1 | ; File name : menufile.asm
|
|---|
| 2 | ; Project name : Menu library
|
|---|
| 3 | ; Created date : 20.11.2009
|
|---|
| 4 | ; Last update : 8.1.2010
|
|---|
| 5 | ; Author : Tomi Tilli
|
|---|
| 6 | ; Description : ASM library to menu system.
|
|---|
| 7 | ; Contains functions for displaying file dialog.
|
|---|
| 8 |
|
|---|
| 9 | ;--------------- Equates -----------------------------
|
|---|
| 10 |
|
|---|
| 11 | ; Dialog init and return variables.
|
|---|
| 12 | ; This is an expanded MSGVARS struct.
|
|---|
| 13 | struc FDLGVARS
|
|---|
| 14 | .msgVars resb MSGVARS_size
|
|---|
| 15 |
|
|---|
| 16 | ; Dialog parameters
|
|---|
| 17 | .fpFileSrch resb 4 ; Far pointer to file search string
|
|---|
| 18 | .wFileCnt resb 2 ; Number of directories and files to display
|
|---|
| 19 | .wDrvCnt resb 2 ; Valid drive letter count
|
|---|
| 20 |
|
|---|
| 21 | ; Return variables for different dialogs
|
|---|
| 22 | .fpDTA resb 4 ; Ptr to DTA for selected file
|
|---|
| 23 | .fSuccess resb 1 ; Was data inputted successfully by user
|
|---|
| 24 | resb 1 ; Alignment
|
|---|
| 25 | endstruc
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | ;-------------- Private global variables -------------
|
|---|
| 29 | ; Section containing initialized data
|
|---|
| 30 | ;SECTION .data
|
|---|
| 31 |
|
|---|
| 32 | g_szDir: db "[%S]",STOP
|
|---|
| 33 | g_szDrv: db "[%c:]",STOP
|
|---|
| 34 |
|
|---|
| 35 |
|
|---|
| 36 | ;-------------- Public functions ---------------------
|
|---|
| 37 | ; Section containing code
|
|---|
| 38 | SECTION .text
|
|---|
| 39 |
|
|---|
| 40 |
|
|---|
| 41 | ;--------------------------------------------------------------------
|
|---|
| 42 | ; Displays file dialog.
|
|---|
| 43 | ;
|
|---|
| 44 | ; MenuFile_ShowDlg
|
|---|
| 45 | ; Parameters:
|
|---|
| 46 | ; BL: Dialog width with borders included
|
|---|
| 47 | ; SS:BP: Ptr to MENUVARS
|
|---|
| 48 | ; ES:DI: Ptr to STOP terminated string to display
|
|---|
| 49 | ; DS:SI: Ptr to file search string (* and ? wildcards supported)
|
|---|
| 50 | ; Returns:
|
|---|
| 51 | ; DS:SI: Ptr to selected file name string
|
|---|
| 52 | ; CF: Set if user data inputted successfully
|
|---|
| 53 | ; Cleared is input cancelled
|
|---|
| 54 | ; Corrupts registers:
|
|---|
| 55 | ; BX, CX
|
|---|
| 56 | ;--------------------------------------------------------------------
|
|---|
| 57 | ALIGN JUMP_ALIGN
|
|---|
| 58 | MenuFile_ShowDlg:
|
|---|
| 59 | ; Create stack frame
|
|---|
| 60 | eENTER FDLGVARS_size, 0
|
|---|
| 61 | sub bp, FDLGVARS_size ; Point to FDLGVARS
|
|---|
| 62 |
|
|---|
| 63 | ; Initialize menu variables
|
|---|
| 64 | mov bh, CNT_SCRN_ROW ; Menu height
|
|---|
| 65 | mov [bp+MENUVARS.wSize], bx ; Menu size
|
|---|
| 66 | mov [bp+MSGVARS.wStrOff], di ; Store far ptr...
|
|---|
| 67 | mov [bp+MSGVARS.wStrSeg], es ; ...to info string to display
|
|---|
| 68 | mov [bp+FDLGVARS.fpFileSrch], si ; Store far pointer...
|
|---|
| 69 | mov [bp+FDLGVARS.fpFileSrch+2], ds ; ...to file search string
|
|---|
| 70 | ;call File_GetValidDrvCnt ; Get drive letter count to CX (drive support broken! Works on DOSBox, not on DOS 6.22)
|
|---|
| 71 | xor cx, cx
|
|---|
| 72 | mov [bp+FDLGVARS.wDrvCnt], cx
|
|---|
| 73 | mov WORD [bp+MENUVARS.fnEvent], MenuFile_Event
|
|---|
| 74 | mov BYTE [bp+FDLGVARS.fSuccess], 0 ; For user cancel
|
|---|
| 75 | call MenuMsg_GetLineCnt ; Get Info line count to CX
|
|---|
| 76 | xchg cl, ch ; CH=Info lines, CL=Title lines
|
|---|
| 77 | mov [bp+MENUVARS.wTopDwnH], cx
|
|---|
| 78 |
|
|---|
| 79 | ; Enter menu
|
|---|
| 80 | mov dx, si ; File search str ptr to DS:DX
|
|---|
| 81 | call MenuFile_GetItemCnt ; Get menuitem count to CX
|
|---|
| 82 | call MenuCrsr_GetCenter ; Get X and Y coordinates to DX
|
|---|
| 83 | xor ax, ax ; Selection timeout (disable)
|
|---|
| 84 | xor bx, bx ; Menu flags
|
|---|
| 85 | call Menu_Init ; Returns only after dlg closed
|
|---|
| 86 |
|
|---|
| 87 | ; Return
|
|---|
| 88 | mov si, [bp+FDLGVARS.fpDTA] ; Load offset to return DTA
|
|---|
| 89 | mov ds, [bp+FDLGVARS.fpDTA+2] ; Load segment to return DTA
|
|---|
| 90 | mov bl, [bp+FDLGVARS.fSuccess] ; Load success flag
|
|---|
| 91 | add bp, FDLGVARS_size ; Point to old BP
|
|---|
| 92 | eLEAVE ; Destroy stack frame
|
|---|
| 93 | rcr bl, 1 ; Move success flag to CF
|
|---|
| 94 | ret
|
|---|
| 95 |
|
|---|
| 96 |
|
|---|
| 97 | ;-------------- Private functions ---------------------
|
|---|
| 98 |
|
|---|
| 99 | ;--------------------------------------------------------------------
|
|---|
| 100 | ; File dialog event handler.
|
|---|
| 101 | ;
|
|---|
| 102 | ; MenuFile_Event
|
|---|
| 103 | ; Parameters:
|
|---|
| 104 | ; DS:DX: Ptr to file search string (for example *.* or C:\temp\*.txt)
|
|---|
| 105 | ; SS:BP: Ptr to FDLGVARS
|
|---|
| 106 | ; Returns:
|
|---|
| 107 | ; CX: Number of menuitems to display files and drives
|
|---|
| 108 | ; Corrupts registers:
|
|---|
| 109 | ; AX
|
|---|
| 110 | ;--------------------------------------------------------------------
|
|---|
| 111 | ALIGN JUMP_ALIGN
|
|---|
| 112 | MenuFile_GetItemCnt:
|
|---|
| 113 | call File_FindAndCount ; Get message line count to CX
|
|---|
| 114 | mov [bp+FDLGVARS.wFileCnt], cx ; Store file and dir count
|
|---|
| 115 | add cx, [bp+FDLGVARS.wDrvCnt] ; Add drive letter count to CX
|
|---|
| 116 | ret
|
|---|
| 117 |
|
|---|
| 118 |
|
|---|
| 119 | ;--------------------------------------------------------------------
|
|---|
| 120 | ; Directory, File and Drive rendering functions for menuitems.
|
|---|
| 121 | ; Cursor is assumed to be on correct position when this function is called.
|
|---|
| 122 | ;
|
|---|
| 123 | ; MenuFile_DrawItem
|
|---|
| 124 | ; Parameters:
|
|---|
| 125 | ; CX: Index of menuitem to draw
|
|---|
| 126 | ; SS:BP: Ptr to FDLGVARS
|
|---|
| 127 | ; Returns:
|
|---|
| 128 | ; Nothing
|
|---|
| 129 | ; Corrupts registers:
|
|---|
| 130 | ; AX, BX, CX, DX
|
|---|
| 131 | ;--------------------------------------------------------------------
|
|---|
| 132 | ALIGN JUMP_ALIGN
|
|---|
| 133 | MenuFile_DrawItem:
|
|---|
| 134 | push ds
|
|---|
| 135 | mov dx, [bp+FDLGVARS.fpFileSrch] ; Load ptr to file search str
|
|---|
| 136 | mov ds, [bp+FDLGVARS.fpFileSrch+2]
|
|---|
| 137 | call File_GetDTA ; Get DTA ptr to DS:BX
|
|---|
| 138 | jc .DrawDrv ; No dir or file, draw drive
|
|---|
| 139 | test BYTE [bx+DTA.bFileAttr], FLG_FATTR_DIR
|
|---|
| 140 | jnz .DrawDir
|
|---|
| 141 |
|
|---|
| 142 | ;--------------------------------------------------------------------
|
|---|
| 143 | ; Directory, File and Drive rendering for menuitems.
|
|---|
| 144 | ; Cursor is assumed to be on correct position.
|
|---|
| 145 | ;
|
|---|
| 146 | ; .DrawFile Draws file menuitem
|
|---|
| 147 | ; .DrawDir Draws directory menuitem
|
|---|
| 148 | ; .DrawDrv Draws drive menuitem
|
|---|
| 149 | ; Parameters:
|
|---|
| 150 | ; CX: Index of menuitem to draw
|
|---|
| 151 | ; DS:BX: Ptr to DTA for menuitem (not for .DrawDrv)
|
|---|
| 152 | ; SS:BP: Ptr to FDLGVARS
|
|---|
| 153 | ; Returns:
|
|---|
| 154 | ; Nothing
|
|---|
| 155 | ; Corrupts registers:
|
|---|
| 156 | ; AX, BX, CX, DX
|
|---|
| 157 | ;--------------------------------------------------------------------
|
|---|
| 158 | .DrawFile:
|
|---|
| 159 | lea dx, [bx+DTA.szFile] ; DS:DX now points to filename string
|
|---|
| 160 | PRINT_STR
|
|---|
| 161 | pop ds
|
|---|
| 162 | ret
|
|---|
| 163 | ALIGN JUMP_ALIGN
|
|---|
| 164 | .DrawDir:
|
|---|
| 165 | push si
|
|---|
| 166 | lea ax, [bx+DTA.szFile] ; Dir string offset to AX
|
|---|
| 167 | push ds ; Push dir string segment
|
|---|
| 168 | push ax ; Push dir string offset
|
|---|
| 169 | push cs ; Copy CS...
|
|---|
| 170 | pop ds ; ...to DS for format string
|
|---|
| 171 | mov si, g_szDir ; Format string now in DS:SI
|
|---|
| 172 | call Print_Format
|
|---|
| 173 | add sp, 4 ; Clean stack variables
|
|---|
| 174 | pop si
|
|---|
| 175 | pop ds
|
|---|
| 176 | ret
|
|---|
| 177 | ALIGN JUMP_ALIGN
|
|---|
| 178 | .DrawDrv:
|
|---|
| 179 | push si
|
|---|
| 180 | sub cx, [bp+FDLGVARS.wFileCnt] ; Menuitem to valid drive index
|
|---|
| 181 | call File_GetNthValidDrv ; Get letter to AX
|
|---|
| 182 | push ax ; Push drive letter
|
|---|
| 183 | push cs ; Copy CS...
|
|---|
| 184 | pop ds ; ...to DS for format string
|
|---|
| 185 | mov si, g_szDrv ; Format string now in DS:SI
|
|---|
| 186 | call Print_Format
|
|---|
| 187 | add sp, 2 ; Clean stack variables
|
|---|
| 188 | pop si
|
|---|
| 189 | pop ds
|
|---|
| 190 | ret
|
|---|
| 191 |
|
|---|
| 192 |
|
|---|
| 193 | ;--------------------------------------------------------------------
|
|---|
| 194 | ; File dialog event handler.
|
|---|
| 195 | ;
|
|---|
| 196 | ; MenuFile_Event
|
|---|
| 197 | ; Parameters:
|
|---|
| 198 | ; BX: Callback event
|
|---|
| 199 | ; CX: Selected menuitem index
|
|---|
| 200 | ; DX: Event parameter (event specific)
|
|---|
| 201 | ; SS:BP: Ptr to FDLGVARS
|
|---|
| 202 | ; Returns:
|
|---|
| 203 | ; AH: Event specific or unused
|
|---|
| 204 | ; AL: 1=Event processed
|
|---|
| 205 | ; 0=Event not processed (default action if any)
|
|---|
| 206 | ; Corrupts registers:
|
|---|
| 207 | ; BX, CX, DX
|
|---|
| 208 | ;--------------------------------------------------------------------
|
|---|
| 209 | ALIGN JUMP_ALIGN
|
|---|
| 210 | MenuFile_Event:
|
|---|
| 211 | cmp bx, EVNT_MNU_UPD ; Above last supported?
|
|---|
| 212 | ja .EventNotHandled ; If so, return
|
|---|
| 213 | shl bx, 1 ; Shift for word lookup
|
|---|
| 214 | jmp [cs:bx+.rgwEventJump] ; Jumpt to handle event
|
|---|
| 215 | ALIGN WORD_ALIGN
|
|---|
| 216 | .rgwEventJump:
|
|---|
| 217 | dw .EventExit ; 0, EVNT_MNU_EXIT
|
|---|
| 218 | dw .EventSelChg ; 1, EVNT_MMU_SELCHG
|
|---|
| 219 | dw .EventSelSet ; 2, EVNT_MNU_SELSET
|
|---|
| 220 | dw .EventKey ; 3, EVNT_MNU_KEY
|
|---|
| 221 | dw .EventUpd ; 4, EVNT_MNU_UPD
|
|---|
| 222 |
|
|---|
| 223 | ; Events that do not require any handling
|
|---|
| 224 | ALIGN JUMP_ALIGN
|
|---|
| 225 | .EventSelChg:
|
|---|
| 226 | .EventKey:
|
|---|
| 227 | .EventNotHandled:
|
|---|
| 228 | xor ax, ax ; Event not processed
|
|---|
| 229 | ret
|
|---|
| 230 | ALIGN JUMP_ALIGN
|
|---|
| 231 | .EventExit:
|
|---|
| 232 | .EventHandled: ; Return point from all handled events
|
|---|
| 233 | mov ax, 1
|
|---|
| 234 | ret
|
|---|
| 235 |
|
|---|
| 236 |
|
|---|
| 237 | ;--------------------------------------------------------------------
|
|---|
| 238 | ; EVNT_MNU_SELSET event handler.
|
|---|
| 239 | ;
|
|---|
| 240 | ; .EventSelSet
|
|---|
| 241 | ; Parameters:
|
|---|
| 242 | ; CX: Index of menuitem that user selected
|
|---|
| 243 | ; SS:BP: Ptr to FDLGVARS
|
|---|
| 244 | ;--------------------------------------------------------------------
|
|---|
| 245 | ALIGN JUMP_ALIGN
|
|---|
| 246 | .EventSelSet:
|
|---|
| 247 | push ds
|
|---|
| 248 | cmp cx, [bp+FDLGVARS.wFileCnt] ; Selecting file or dir?
|
|---|
| 249 | jae .ChgDrv ; If not, must be drive
|
|---|
| 250 | mov dx, [bp+FDLGVARS.fpFileSrch] ; Load ptr to file search str
|
|---|
| 251 | mov ds, [bp+FDLGVARS.fpFileSrch+2]
|
|---|
| 252 | call File_GetDTA ; Get DTA ptr to DS:BX
|
|---|
| 253 | rcl al, 1 ; CF to AL
|
|---|
| 254 | test BYTE [bx+DTA.bFileAttr], FLG_FATTR_DIR
|
|---|
| 255 | jnz .ChgDir ; If directory, go change
|
|---|
| 256 |
|
|---|
| 257 | ; File selected, close dialog
|
|---|
| 258 | not al ; Invert CF
|
|---|
| 259 | mov [bp+FDLGVARS.fSuccess], al ; Store success flag
|
|---|
| 260 | mov [bp+FDLGVARS.fpDTA], bx ; Store offset to DTA
|
|---|
| 261 | mov [bp+FDLGVARS.fpDTA+2], ds ; Store segment to DTA
|
|---|
| 262 | pop ds
|
|---|
| 263 | jmp MenuDlg_ExitHandler ; Close dialog
|
|---|
| 264 |
|
|---|
| 265 | ALIGN JUMP_ALIGN
|
|---|
| 266 | .ChgDrv:
|
|---|
| 267 | sub cx, [bp+FDLGVARS.wFileCnt] ; Menuitem to drive index
|
|---|
| 268 | call File_GetNthValidDrv ; Drv device num to DX
|
|---|
| 269 | call File_SetDrive ; Change drive
|
|---|
| 270 | jmp .ChangeDone ; Update menu
|
|---|
| 271 | ALIGN JUMP_ALIGN
|
|---|
| 272 | .ChgDir:
|
|---|
| 273 | lea dx, [bx+DTA.szFile] ; Offset to new path
|
|---|
| 274 | call File_ChangeDir ; Change directory
|
|---|
| 275 | ALIGN JUMP_ALIGN
|
|---|
| 276 | .ChangeDone:
|
|---|
| 277 | mov dx, [bp+FDLGVARS.fpFileSrch] ; Load ptr to file search str
|
|---|
| 278 | mov ds, [bp+FDLGVARS.fpFileSrch+2]
|
|---|
| 279 | call MenuFile_GetItemCnt ; Get file count from new dir
|
|---|
| 280 | pop ds
|
|---|
| 281 | xor dx, dx ; Redraw only necessary
|
|---|
| 282 | call Menu_InvItemCnt ; Redraw with new items
|
|---|
| 283 | jmp .EventHandled
|
|---|
| 284 |
|
|---|
| 285 | ;--------------------------------------------------------------------
|
|---|
| 286 | ; EVNT_MNU_UPD event handler.
|
|---|
| 287 | ;
|
|---|
| 288 | ; .EventUpd
|
|---|
| 289 | ; Parameters:
|
|---|
| 290 | ; CX: Index of menuitem to update (MFL_UPD_ITEM only)
|
|---|
| 291 | ; DL: Update flag:
|
|---|
| 292 | ; MFL_UPD_TITLE Set to update title string
|
|---|
| 293 | ; MFL_UPD_NFO Set to update info string
|
|---|
| 294 | ; MFL_UPD_ITEM Set to update menuitem string
|
|---|
| 295 | ; SS:BP: Ptr to FDLGVARS
|
|---|
| 296 | ;--------------------------------------------------------------------
|
|---|
| 297 | ALIGN JUMP_ALIGN
|
|---|
| 298 | .EventUpd:
|
|---|
| 299 | test dl, MFL_UPD_TITLE ; Update title?
|
|---|
| 300 | jnz .EventNotHandled ; If so, return without handling event
|
|---|
| 301 | test dl, MFL_UPD_NFO ; Update info?
|
|---|
| 302 | jnz .DrawInfo ; If so, jump to update
|
|---|
| 303 |
|
|---|
| 304 | ; Update Menuitem
|
|---|
| 305 | call MenuFile_DrawItem ; Draw menuitem
|
|---|
| 306 | jmp .EventHandled
|
|---|
| 307 |
|
|---|
| 308 | ; Update Info string
|
|---|
| 309 | ALIGN JUMP_ALIGN
|
|---|
| 310 | .DrawInfo:
|
|---|
| 311 | push es
|
|---|
| 312 | push di
|
|---|
| 313 | mov di, [bp+MSGVARS.wStrOff] ; Load string offset
|
|---|
| 314 | mov es, [bp+MSGVARS.wStrSeg] ; Load string segment
|
|---|
| 315 | eMOVZX cx, BYTE [bp+MENUVARS.bInfoH] ; Load info line count to CX
|
|---|
| 316 | call MenuDraw_MultilineStr ; Draw multiline str
|
|---|
| 317 | pop di
|
|---|
| 318 | pop es
|
|---|
| 319 | jmp .EventHandled
|
|---|
