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Text File  |  1991-09-30  |  5KB  |  230 lines
  1. /* ----------- fileopen.c ------------- */
  2.  
  3. #include "dflat.h"
  4.  
  5. static int DlgFileOpen(char *, char *, DBOX *);
  6. static int DlgFnOpen(WINDOW, MESSAGE, PARAM, PARAM);
  7. static void InitDlgBox(WINDOW);
  8. static void StripPath(char *);
  9. static int IncompleteFilename(char *);
  10.  
  11. static char *OrigSpec;
  12. static char *FileSpec;
  13. static char *FileName;
  14.  
  15. static int Saving;
  16. extern DBOX FileOpen;
  17. extern DBOX SaveAs;
  18.  
  19. /*
  20.  * Dialog Box to select a file to open
  21.  */
  22. int OpenFileDialogBox(char *Fpath, char *Fname)
  23. {
  24.     return DlgFileOpen(Fpath, Fname, &FileOpen);
  25. }
  26.  
  27. /*
  28.  * Dialog Box to select a file to save as
  29.  */
  30. int SaveAsDialogBox(char *Fname)
  31. {
  32.     return DlgFileOpen(NULL, Fname, &SaveAs);
  33. }
  34.  
  35. /* --------- generic file open ---------- */
  36. static int DlgFileOpen(char *Fpath, char *Fname, DBOX *db)
  37. {
  38.     int  rtn;
  39.     char savedir[80];
  40.     char OSpec[80];
  41.     char FSpec[80];
  42.     char FName[80];
  43.  
  44.     OrigSpec = OSpec;
  45.     FileSpec = FSpec;
  46.     FileName = FName;
  47.  
  48.     getcwd(savedir, sizeof savedir);
  49.     if (Fpath != NULL)    {
  50.         strncpy(FileSpec, Fpath, 80);
  51.         Saving = FALSE;
  52.     }
  53.     else    {
  54.         *FileSpec = '\0';
  55.         Saving = TRUE;
  56.     }
  57.     strcpy(FileName, FileSpec);
  58.     strcpy(OrigSpec, FileSpec);
  59.  
  60.     if ((rtn = DialogBox(NULL, db, TRUE, DlgFnOpen)) != FALSE)
  61.         strcpy(Fname, FileName);
  62.     else
  63.         *Fname = '\0';
  64.  
  65.     setdisk(toupper(*savedir) - 'A');
  66.     chdir(savedir);
  67.  
  68.     return rtn;
  69. }
  70.  
  71. /*
  72.  *  Process dialog box messages
  73.  */
  74. static int DlgFnOpen(WINDOW wnd, MESSAGE msg, PARAM p1, PARAM p2)
  75. {
  76.     switch (msg)    {
  77.         case INITIATE_DIALOG:
  78.             InitDlgBox(wnd);
  79.             break;
  80.         case COMMAND:
  81.             switch ((int) p1)    {
  82.                 case ID_FILENAME:
  83.                     if (p2 != ENTERFOCUS)    {
  84.                         /* allow user to modify the file spec */
  85.                         GetItemText(wnd, ID_FILENAME,
  86.                                 FileName, 65);
  87.                         if (IncompleteFilename(FileName) || Saving)    {
  88.                             strcpy(OrigSpec, FileName);
  89.                             StripPath(OrigSpec);
  90.                         }
  91.                         if (p2 != LEAVEFOCUS)
  92.                             SendMessage(wnd, COMMAND, ID_OK, 0);
  93.                     }
  94.                     return TRUE;
  95.                 case ID_OK:
  96.                     if (p2 != 0)
  97.                         break;
  98.                     GetItemText(wnd, ID_FILENAME,
  99.                             FileName, 65);
  100.                     strcpy(FileSpec, FileName);
  101.                     if (IncompleteFilename(FileName))    {
  102.                         /* no file name yet */
  103.                         InitDlgBox(wnd);
  104.                         strcpy(OrigSpec, FileSpec);
  105.                         return TRUE;
  106.                     }
  107.                     else    {
  108.                         GetItemText(wnd, ID_PATH, FileName, 65);
  109.                         strcat(FileName, FileSpec);
  110.                     }
  111.                     break;
  112.                 case ID_FILES:
  113.                     switch ((int) p2)    {
  114.                         case ENTERFOCUS:
  115.                         case LB_SELECTION:
  116.                             /* selected a different filename */
  117.                             GetDlgListText(wnd, FileName,
  118.                                         ID_FILES);
  119.                             PutItemText(wnd, ID_FILENAME,
  120.                                             FileName);
  121.                             break;
  122.                         case LB_CHOOSE:
  123.                             /* chose a file name */
  124.                             GetDlgListText(wnd, FileName,
  125.                                     ID_FILES);
  126.                             SendMessage(wnd, COMMAND, ID_OK, 0);
  127.                             break;
  128.                         default:
  129.                             break;
  130.                     }
  131.                     return TRUE;
  132.                 case ID_DRIVE:
  133.                     switch ((int) p2)    {
  134.                         case ENTERFOCUS:
  135.                             if (Saving)
  136.                                 *FileSpec = '\0';
  137.                             break;
  138.                         case LEAVEFOCUS:
  139.                             if (Saving)
  140.                                 strcpy(FileSpec, FileName);
  141.                             break;
  142.                         case LB_SELECTION:    {
  143.                             char dd[25];
  144.                             /* selected different drive/dir */
  145.                             GetDlgListText(wnd, dd,
  146.                                                 ID_DRIVE);
  147.                             if (*(dd+2) == ':')
  148.                                 *(dd+3) = '\0';
  149.                             else
  150.                                 *(dd+strlen(dd)-1) = '\0';
  151.                             strcpy(FileName, dd+1);
  152.                             if (*(dd+2) != ':' && *OrigSpec != '\\')
  153.                                 strcat(FileName, "\\");
  154.                             strcat(FileName, OrigSpec);
  155.                             if (*(FileName+1) != ':' && *FileName != '.')    {
  156.                                 GetItemText(wnd, ID_PATH, FileSpec, 65);
  157.                                 strcat(FileSpec, FileName);
  158.                             }
  159.                             else 
  160.                                 strcpy(FileSpec, FileName);
  161.                             break;
  162.                         }
  163.                         case LB_CHOOSE:
  164.                             /* chose drive/dir */
  165.                             if (Saving)
  166.                                 PutItemText(wnd, ID_FILENAME, "");
  167.                             InitDlgBox(wnd);
  168.                             return TRUE;
  169.                         default:
  170.                             break;
  171.                     }
  172.                     PutItemText(wnd, ID_FILENAME, FileSpec);
  173.                     return TRUE;
  174.  
  175.  
  176.                 default:
  177.                     break;
  178.             }
  179.         default:
  180.             break;
  181.     }
  182.     return DefaultWndProc(wnd, msg, p1, p2);
  183. }
  184.  
  185. /*
  186.  *  Initialize the dialog box
  187.  */
  188. static void InitDlgBox(WINDOW wnd)
  189. {
  190.     if (*FileSpec && !Saving)
  191.         PutItemText(wnd, ID_FILENAME, FileSpec);
  192.     if (DlgDirList(wnd, FileSpec, ID_FILES, ID_PATH, 0))    {
  193.         StripPath(FileSpec);
  194.         DlgDirList(wnd, "*.*", ID_DRIVE, 0, 0xc010);
  195.     }
  196. }
  197.  
  198. /*
  199.  * Strip the drive and path information from a file spec
  200.  */
  201. static void StripPath(char *filespec)
  202. {
  203.     char *cp, *cp1;
  204.  
  205.     cp = strchr(filespec, ':');
  206.     if (cp != NULL)
  207.         cp++;
  208.     else
  209.         cp = filespec;
  210.     while (TRUE)    {
  211.         cp1 = strchr(cp, '\\');
  212.         if (cp1 == NULL)
  213.             break;
  214.         cp = cp1+1;
  215.     }
  216.     strcpy(filespec, cp);
  217. }
  218.  
  219.  
  220. static int IncompleteFilename(char *s)
  221. {
  222.     int lc = strlen(s)-1;
  223.     if (strchr(s, '?') || strchr(s, '*') || !*s)
  224.         return TRUE;
  225.     if (*(s+lc) == ':' || *(s+lc) == '\\')
  226.         return TRUE;
  227.     return FALSE;
  228. }
  229.  
  230.