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C/C++ Source or Header  |  1992-02-17  |  5.2 KB  |  241 lines
  1. /* ----------- fileopen.c ------------- */
  2.  
  3. #include "dflat.h"
  4.  
  5. static BOOL DlgFileOpen(char *, char *, DBOX *);
  6. static int DlgFnOpen(WINDOW, MESSAGE, PARAM, PARAM);
  7. static void InitDlgBox(WINDOW);
  8. static void StripPath(char *);
  9. static BOOL IncompleteFilename(char *);
  10.  
  11. static char *OrigSpec;
  12. static char *FileSpec;
  13. static char *FileName;
  14. static char *NewFileName;
  15.  
  16. static BOOL Saving;
  17. extern DBOX FileOpen;
  18. extern DBOX SaveAs;
  19.  
  20. /*
  21.  * Dialog Box to select a file to open
  22.  */
  23. BOOL OpenFileDialogBox(char *Fpath, char *Fname)
  24. {
  25.     return DlgFileOpen(Fpath, Fname, &FileOpen);
  26. }
  27.  
  28. /*
  29.  * Dialog Box to select a file to save as
  30.  */
  31. BOOL SaveAsDialogBox(char *Fname)
  32. {
  33.     return DlgFileOpen(NULL, Fname, &SaveAs);
  34. }
  35.  
  36. /* --------- generic file open ---------- */
  37. static BOOL DlgFileOpen(char *Fpath, char *Fname, DBOX *db)
  38. {
  39.     BOOL rtn;
  40.     char savedir[80];
  41.     char OSpec[80];
  42.     char FSpec[80];
  43.     char FName[80];
  44.     char NewFName[80];
  45.  
  46.     OrigSpec = OSpec;
  47.     FileSpec = FSpec;
  48.     FileName = FName;
  49.     NewFileName = NewFName;
  50.  
  51.     getcwd(savedir, sizeof savedir);
  52.     if (Fpath != NULL)    {
  53.         strncpy(FileSpec, Fpath, 80);
  54.         Saving = FALSE;
  55.     }
  56.     else    {
  57.         *FileSpec = '\0';
  58.         Saving = TRUE;
  59.     }
  60.     strcpy(FileName, FileSpec);
  61.     strcpy(OrigSpec, FileSpec);
  62.  
  63.     if ((rtn = DialogBox(NULL, db, TRUE, DlgFnOpen)) != FALSE)
  64.         strcpy(Fname, NewFileName);
  65.     else
  66.         *Fname = '\0';
  67.  
  68.     setdisk(toupper(*savedir) - 'A');
  69.     chdir(savedir);
  70.  
  71.     return rtn;
  72. }
  73.  
  74. /*
  75.  *  Process dialog box messages
  76.  */
  77. static int DlgFnOpen(WINDOW wnd, MESSAGE msg, PARAM p1, PARAM p2)
  78. {
  79.     switch (msg)    {
  80.         case CREATE_WINDOW:    {
  81.             int rtn = DefaultWndProc(wnd, msg, p1, p2);
  82.             DBOX *db = wnd->extension;
  83.             WINDOW cwnd = ControlWindow(db, ID_FILENAME);
  84.             SendMessage(cwnd, SETTEXTLENGTH, 64, 0);
  85.             return rtn;
  86.         }
  87.         case INITIATE_DIALOG:
  88.             InitDlgBox(wnd);
  89.             break;
  90.         case COMMAND:
  91.             switch ((int) p1)    {
  92.                 case ID_FILENAME:
  93.                     if (p2 != ENTERFOCUS)    {
  94.                         /* allow user to modify the file spec */
  95.                         GetItemText(wnd, ID_FILENAME,
  96.                                 FileName, 65);
  97.                         if (IncompleteFilename(FileName) || Saving)    {
  98.                             strcpy(OrigSpec, FileName);
  99.                             StripPath(OrigSpec);
  100.                         }
  101.                         if (p2 != LEAVEFOCUS)
  102.                             SendMessage(wnd, COMMAND, ID_OK, 0);
  103.                     }
  104.                     return TRUE;
  105.                 case ID_OK:
  106.                     if (p2 != 0)
  107.                         break;
  108.                     GetItemText(wnd, ID_FILENAME,
  109.                             FileName, 65);
  110.                     strcpy(FileSpec, FileName);
  111.                     if (IncompleteFilename(FileName))    {
  112.                         /* no file name yet */
  113.                         InitDlgBox(wnd);
  114.                         strcpy(OrigSpec, FileSpec);
  115.                         return TRUE;
  116.                     }
  117.                     else    {
  118.                         GetItemText(wnd, ID_PATH, FileName, 65);
  119.                         strcat(FileName, FileSpec);
  120.                         strcpy(NewFileName, FileName);
  121.                     }
  122.                     break;
  123.                 case ID_FILES:
  124.                     switch ((int) p2)    {
  125.                         case ENTERFOCUS:
  126.                         case LB_SELECTION:
  127.                             /* selected a different filename */
  128.                             GetDlgListText(wnd, FileName,
  129.                                         ID_FILES);
  130.                             PutItemText(wnd, ID_FILENAME,
  131.                                             FileName);
  132.                             break;
  133.                         case LB_CHOOSE:
  134.                             /* chose a file name */
  135.                             GetDlgListText(wnd, FileName,
  136.                                     ID_FILES);
  137.                             SendMessage(wnd, COMMAND, ID_OK, 0);
  138.                             break;
  139.                         default:
  140.                             break;
  141.                     }
  142.                     return TRUE;
  143.                 case ID_DRIVE:
  144.                     switch ((int) p2)    {
  145.                         case ENTERFOCUS:
  146.                             if (Saving)
  147.                                 *FileSpec = '\0';
  148.                             break;
  149.                         case LEAVEFOCUS:
  150.                             if (Saving)
  151.                                 strcpy(FileSpec, FileName);
  152.                             break;
  153.                         case LB_SELECTION:    {
  154.                             char dd[25];
  155.                             /* selected different drive/dir */
  156.                             GetDlgListText(wnd, dd,
  157.                                                 ID_DRIVE);
  158.                             if (*(dd+2) == ':')
  159.                                 *(dd+3) = '\0';
  160.                             else
  161.                                 *(dd+strlen(dd)-1) = '\0';
  162.                             strcpy(FileName, dd+1);
  163.                             if (*(dd+2) != ':' && *OrigSpec != '\\')
  164.                                 strcat(FileName, "\\");
  165.                             strcat(FileName, OrigSpec);
  166.                             if (*(FileName+1) != ':' && *FileName != '.')    {
  167.                                 GetItemText(wnd, ID_PATH, FileSpec, 65);
  168.                                 strcat(FileSpec, FileName);
  169.                             }
  170.                             else 
  171.                                 strcpy(FileSpec, FileName);
  172.                             break;
  173.                         }
  174.                         case LB_CHOOSE:
  175.                             /* chose drive/dir */
  176.                             if (Saving)
  177.                                 PutItemText(wnd, ID_FILENAME, "");
  178.                             InitDlgBox(wnd);
  179.                             return TRUE;
  180.                         default:
  181.                             break;
  182.                     }
  183.                     PutItemText(wnd, ID_FILENAME, FileSpec);
  184.                     return TRUE;
  185.  
  186.  
  187.                 default:
  188.                     break;
  189.             }
  190.         default:
  191.             break;
  192.     }
  193.     return DefaultWndProc(wnd, msg, p1, p2);
  194. }
  195.  
  196. /*
  197.  *  Initialize the dialog box
  198.  */
  199. static void InitDlgBox(WINDOW wnd)
  200. {
  201.     if (*FileSpec && !Saving)
  202.         PutItemText(wnd, ID_FILENAME, FileSpec);
  203.     if (DlgDirList(wnd, FileSpec, ID_FILES, ID_PATH, 0))    {
  204.         StripPath(FileSpec);
  205.         DlgDirList(wnd, "*.*", ID_DRIVE, 0, 0xc010);
  206.     }
  207. }
  208.  
  209. /*
  210.  * Strip the drive and path information from a file spec
  211.  */
  212. static void StripPath(char *filespec)
  213. {
  214.     char *cp, *cp1;
  215.  
  216.     cp = strchr(filespec, ':');
  217.     if (cp != NULL)
  218.         cp++;
  219.     else
  220.         cp = filespec;
  221.     while (TRUE)    {
  222.         cp1 = strchr(cp, '\\');
  223.         if (cp1 == NULL)
  224.             break;
  225.         cp = cp1+1;
  226.     }
  227.     strcpy(filespec, cp);
  228. }
  229.  
  230.  
  231. static BOOL IncompleteFilename(char *s)
  232. {
  233.     int lc = strlen(s)-1;
  234.     if (strchr(s, '?') || strchr(s, '*') || !*s)
  235.         return TRUE;
  236.     if (*(s+lc) == ':' || *(s+lc) == '\\')
  237.         return TRUE;
  238.     return FALSE;
  239. }
  240.  
  241.