src/mac/dirdlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dirdlg.cpp
   3 // Purpose:     wxDirDialog
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "dirdlg.h"
  14 #endif
  15
  16 #include "wx/defs.h"
  17 #include "wx/utils.h"
  18 #include "wx/dialog.h"
  19 #include "wx/dirdlg.h"
  20
  21 #include "wx/cmndata.h"
  22
  23 #if !USE_SHARED_LIBRARY
  24 IMPLEMENT_CLASS(wxDirDialog, wxDialog)
  25 #endif
  26
  27 // the data we need to pass to our standard file hook routine
  28 // includes a pointer to the dialog, a pointer to the standard
  29 // file reply record (so we can inspect the current selection)
  30 // and a copy of the "previous" file spec of the reply record
  31 // so we can see if the selection has changed
  32
  33 struct UserDataRec {
  34         StandardFileReply       *sfrPtr;
  35         FSSpec                          oldSelectionFSSpec;
  36         DialogPtr                       theDlgPtr;
  37 };
  38 typedef struct UserDataRec
  39         UserDataRec, *UserDataRecPtr;
  40
  41 #if !TARGET_CARBON
  42
  43 enum {
  44         kSelectItem = 10,                       // select button item number
  45         kSFGetFolderDlgID = 250,        // dialog resource number
  46         kStrListID = 250,                       // our strings
  47         kSelectStrNum = 1,                      // word 'Select: ' for button
  48         kDesktopStrNum = 2,                     // word 'Desktop' for button
  49         kSelectNoQuoteStrNum = 3,       // word 'Select: ' for button
  50
  51         kUseQuotes = true,                      // parameter for SetButtonName
  52         kDontUseQuotes = false
  53 };
  54
  55
  56 static void GetLabelString(StringPtr theStr, short stringNum)
  57 {
  58         GetIndString(theStr, kStrListID, stringNum);
  59 }
  60
  61 static void CopyPStr(StringPtr src, StringPtr dest)
  62 {
  63         BlockMoveData(src, dest, 1 + src[0]);
  64 }
  65
  66 static char GetSelectKey(void)
  67 {
  68         // this is the key used to trigger the select button
  69
  70         // NOT INTERNATIONAL SAVVY; should at least grab it from resources
  71
  72         return 's';
  73 }
  74
  75
  76 // SetButtonName sets the name of the Select button in the dialog
  77 //
  78 // To do this, we need to call the Script Manager to truncate the
  79 // label in the middle to fit the button and to merge the button
  80 // name with the word Select (possibly followed by quotes).  Using
  81 // the Script Manager avoids all sorts of problems internationally.
  82 //
  83 // buttonName is the name to appear following the word Select
  84 // quoteFlag should be true if the name is to appear in quotes
  85
  86 static void SetButtonName(DialogPtr theDlgPtr, short buttonID, StringPtr buttonName,
  87                                         Boolean quoteFlag)
  88 {
  89         short   buttonType;
  90         Handle  buttonHandle;
  91         Rect    buttonRect;
  92         short   textWidth;
  93         Handle  labelHandle;
  94         Handle  nameHandle;
  95         Str15   keyStr;
  96         Str255  labelStr;
  97         OSErr   err;
  98
  99         nameHandle = nil;
 100         labelHandle = nil;
 101
 102         // get the details of the button from the dialog
 103
 104         GetDialogItem(theDlgPtr, buttonID, &buttonType, &buttonHandle, &buttonRect);
 105
 106         // get the string for the select button label, "Select ^0" or "Select Ò^0Ó"
 107
 108         GetLabelString(labelStr, (quoteFlag == kUseQuotes) ? kSelectStrNum : kSelectNoQuoteStrNum);
 109
 110         // make string handles containing the select button label and the
 111         // file name to be stuffed into the button
 112
 113         err = PtrToHand(&labelStr[1], &labelHandle, labelStr[0]);
 114         if (err != noErr) goto Bail;
 115
 116         // cut out the middle of the file name to fit the button
 117         //
 118         // we'll temporarily use labelStr here to hold the modified button name
 119         // since we don't own the buttonName string storage space
 120
 121         textWidth = (buttonRect.right - buttonRect.left) - StringWidth(labelStr);
 122
 123         CopyPStr(buttonName, labelStr);
 124         (void) TruncString(textWidth, labelStr, smTruncMiddle);
 125
 126         err = PtrToHand(&labelStr[1], &nameHandle, labelStr[0]);
 127         if (err != noErr) goto Bail;
 128
 129         // replace the ^0 in the Select string with the file name
 130
 131         CopyPStr("\p^0", keyStr);
 132
 133         (void) ReplaceText(labelHandle, nameHandle, keyStr);
 134
 135         labelStr[0] = (unsigned char) GetHandleSize(labelHandle);
 136         BlockMoveData(*labelHandle, &labelStr[1], labelStr[0]);
 137
 138         // now set the control title, and re-validate the area
 139         // above the control to avoid a needless redraw
 140
 141         SetControlTitle((ControlHandle) buttonHandle, labelStr);
 142
 143         ValidRect(&buttonRect);
 144
 145 Bail:
 146         if (nameHandle)         DisposeHandle(nameHandle);
 147         if (labelHandle)        DisposeHandle(labelHandle);
 148
 149 }
 150
 151 // FlashButton briefly highlights the dialog button
 152 // as feedback for key equivalents
 153
 154 static void FlashButton(DialogPtr theDlgPtr, short buttonID)
 155 {
 156         short   buttonType;
 157         Handle  buttonHandle;
 158         Rect    buttonRect;
 159         unsigned long   finalTicks;
 160
 161         GetDialogItem(theDlgPtr, buttonID, &buttonType, &buttonHandle, &buttonRect);
 162         HiliteControl((ControlHandle) buttonHandle, kControlButtonPart);
 163         Delay(10, &finalTicks);
 164         HiliteControl((ControlHandle) buttonHandle, 0);
 165 }
 166
 167 static Boolean SameFSSpec(FSSpecPtr spec1, FSSpecPtr spec2)
 168 {
 169         return (spec1->vRefNum == spec2->vRefNum
 170                         && spec1->parID == spec2->parID
 171                         && EqualString(spec1->name, spec2->name, false, false));
 172 }
 173 // MyModalDialogFilter maps a key to the Select button, and handles
 174 // flashing of the button when the key is hit
 175
 176 static pascal Boolean SFGetFolderModalDialogFilter(DialogPtr theDlgPtr, EventRecord *eventRec,
 177                                                                                         short *item, Ptr dataPtr)
 178 {
 179 #pragma unused (dataPtr)
 180
 181         // make certain the proper dialog is showing, 'cause standard file
 182         // can nest dialogs but calls the same filter for each
 183
 184         if (((WindowPeek) theDlgPtr)->refCon == sfMainDialogRefCon)
 185         {
 186                 // check if the select button was hit
 187
 188                 if ((eventRec->what == keyDown)
 189                         && (eventRec->modifiers & cmdKey)
 190                         && ((eventRec->message & charCodeMask) == GetSelectKey()))
 191                 {
 192                         *item = kSelectItem;
 193                         FlashButton(theDlgPtr, kSelectItem);
 194                         return true;
 195                 }
 196         }
 197
 198         return false;
 199 }
 200
 201
 202 // MyDlgHook is a hook routine that maps the select button to Open
 203 // and sets the Select button name
 204
 205 static pascal short SFGetFolderDialogHook(short item, DialogPtr theDlgPtr, Ptr dataPtr)
 206 {
 207         UserDataRecPtr  theUserDataRecPtr;
 208         long                    desktopDirID;
 209         short                   desktopVRefNum;
 210         FSSpec                  tempSpec;
 211         Str63                   desktopName;
 212         OSErr                   err;
 213
 214         // be sure Std File is really showing us the intended dialog,
 215         // not a nested modal dialog
 216
 217         if (((WindowPeek) theDlgPtr)->refCon != sfMainDialogRefCon)
 218         {
 219                 return item;
 220         }
 221
 222         theUserDataRecPtr = (UserDataRecPtr) dataPtr;
 223
 224         // map the Select button to Open
 225
 226         if (item == kSelectItem)
 227         {
 228                 item = sfItemOpenButton;
 229         }
 230
 231         // find the desktop folder
 232
 233         err = FindFolder(theUserDataRecPtr->sfrPtr->sfFile.vRefNum,
 234                                         kDesktopFolderType, kDontCreateFolder,
 235                                         &desktopVRefNum, &desktopDirID);
 236
 237         if (err != noErr)
 238         {
 239                 // for errors, get value that won't match any real vRefNum/dirID
 240                 desktopVRefNum = 0;
 241                 desktopDirID = 0;
 242         }
 243
 244         // change the Select button label if the selection has changed or
 245         // if this is the first call to the hook
 246
 247         if (item == sfHookFirstCall
 248                 || item == sfHookChangeSelection
 249                 || item == sfHookRebuildList
 250                 || ! SameFSSpec(&theUserDataRecPtr->sfrPtr->sfFile,
 251                                         &theUserDataRecPtr->oldSelectionFSSpec))
 252         {
 253                 // be sure there is a file name selected
 254
 255                 if (theUserDataRecPtr->sfrPtr->sfFile.name[0] != '\0')
 256                 {
 257                         SetButtonName(theDlgPtr, kSelectItem,
 258                                                         theUserDataRecPtr->sfrPtr->sfFile.name,
 259                                                         kUseQuotes);    // true -> use quotes
 260                 }
 261                 else
 262                 {
 263                         // is the desktop selected?
 264
 265                         if (theUserDataRecPtr->sfrPtr->sfFile.vRefNum == desktopVRefNum
 266                                 && theUserDataRecPtr->sfrPtr->sfFile.parID == desktopDirID)
 267                         {
 268                                 // set button to "Select Desktop"
 269
 270                                 GetLabelString(desktopName, kDesktopStrNum);
 271                                 SetButtonName(theDlgPtr, kSelectItem,
 272                                                                 desktopName, kDontUseQuotes);   // false -> no quotes
 273                         }
 274                         else
 275                         {
 276                                 // get parent directory's name for the Select button
 277                                 //
 278                                 // passing an empty name string to FSMakeFSSpec gets the
 279                                 // name of the folder specified by the parID parameter
 280
 281                                 (void) FSMakeFSSpec(theUserDataRecPtr->sfrPtr->sfFile.vRefNum,
 282                                         theUserDataRecPtr->sfrPtr->sfFile.parID, "\p",
 283                                         &tempSpec);
 284                                 SetButtonName(theDlgPtr, kSelectItem,
 285                                                         tempSpec.name, kUseQuotes); // true -> use quotes
 286                         }
 287                 }
 288         }
 289
 290         // save the current selection as the old selection for comparison next time
 291         //
 292         // it's not valid on the first call, though, or if we don't have a
 293         // name available from standard file
 294
 295         if (item != sfHookFirstCall || theUserDataRecPtr->sfrPtr->sfFile.name[0] != '\0')
 296         {
 297                 theUserDataRecPtr->oldSelectionFSSpec = theUserDataRecPtr->sfrPtr->sfFile;
 298         }
 299         else
 300         {
 301                 // on first call, empty string won't set the button correctly,
 302                 // so invalidate oldSelection
 303
 304                 theUserDataRecPtr->oldSelectionFSSpec.vRefNum = 999;
 305                 theUserDataRecPtr->oldSelectionFSSpec.parID = 0;
 306         }
 307
 308         return item;
 309 }
 310 #endif
 311
 312 void StandardGetFolder( ConstStr255Param message , ConstStr255Param path , FileFilterYDUPP fileFilter, StandardFileReply *theSFR)
 313 {
 314         Point                           thePt;
 315         SFTypeList                      mySFTypeList;
 316         UserDataRec                     myData;
 317         FSSpec                          tempSpec;
 318         Boolean                         folderFlag;
 319         Boolean                         wasAliasedFlag;
 320         DlgHookYDUPP            dlgHookUPP;
 321         ModalFilterYDUPP        myModalFilterUPP;
 322         OSErr                           err;
 323
 324
 325         // presumably we're running System 7 or later so CustomGetFile is
 326         // available
 327
 328         // set initial contents of Select button to a space
 329
 330         memcpy(theSFR->sfFile.name, "\p ", 2);
 331
 332         // point the user data parameter at the reply record so we can get to it later
 333
 334         myData.sfrPtr = theSFR;
 335
 336         // display the dialog
 337
 338         #if !TARGET_CARBON
 339
 340         dlgHookUPP = NewDlgHookYDProc(SFGetFolderDialogHook);
 341         myModalFilterUPP = NewModalFilterYDProc(SFGetFolderModalDialogFilter);
 342
 343         thePt.h = thePt.v = -1; // center dialog
 344
 345         ParamText( message , NULL , NULL , NULL ) ;
 346
 347         CustomGetFile(  fileFilter,
 348                                         -1,                                     // show all types
 349                                         mySFTypeList,
 350                                         theSFR,
 351                                         kSFGetFolderDlgID,
 352                                         thePt,                          // top left point
 353                                         dlgHookUPP,
 354                                         myModalFilterUPP,
 355                                         nil,                            // activate list
 356                                         nil,                            // activate proc
 357                                         &myData);
 358
 359         DisposeRoutineDescriptor(dlgHookUPP);
 360         DisposeRoutineDescriptor(myModalFilterUPP);
 361         #else
 362         #endif
 363
 364         // if cancel wasn't pressed and no fatal error occurred...
 365
 366         if (theSFR->sfGood)
 367         {
 368                 // if no name is in the reply record file spec,
 369                 // use the file spec of the parent folder
 370
 371                 if (theSFR->sfFile.name[0] == '\0')
 372                 {
 373                         err = FSMakeFSSpec(theSFR->sfFile.vRefNum, theSFR->sfFile.parID,
 374                                                                 "\p", &tempSpec);
 375                         if (err == noErr)
 376                         {
 377                                 theSFR->sfFile = tempSpec;
 378                         }
 379                         else
 380                         {
 381                                 // no name to return, forget it
 382
 383                                 theSFR->sfGood = false;
 384                         }
 385                 }
 386
 387                 // if there is now a name in the file spec, check if it's
 388                 // for a folder or a volume
 389
 390                 if (theSFR->sfFile.name[0] != '\0')
 391                 {
 392                         // the parID of the root of a disk is always fsRtParID == 1
 393
 394                         if (theSFR->sfFile.parID == fsRtParID)
 395                         {
 396                                 theSFR->sfIsVolume = true;
 397                                 theSFR->sfIsFolder = false;     // it would be reasonable for this to be true, too
 398                         }
 399
 400                         // we have a valid FSSpec, now let's make sure it's not for an alias file
 401
 402                         err = ResolveAliasFile(&theSFR->sfFile, true, &folderFlag, &wasAliasedFlag);
 403                         if (err != noErr)
 404                         {
 405                                 theSFR->sfGood = false;
 406                         }
 407
 408                         // did the alias resolve to a folder?
 409
 410                         if (folderFlag  && ! theSFR->sfIsVolume)
 411                         {
 412                                 theSFR->sfIsFolder = true;
 413                         }
 414                 }
 415         }
 416 }
 417
 418 static pascal Boolean OnlyVisibleFoldersCustomFileFilter(CInfoPBPtr myCInfoPBPtr, Ptr dataPtr)
 419 {
 420 #pragma unused (dataPtr)
 421
 422         // return true if this item is invisible or a file
 423
 424         Boolean visibleFlag;
 425         Boolean folderFlag;
 426
 427         visibleFlag = ! (myCInfoPBPtr->hFileInfo.ioFlFndrInfo.fdFlags & kIsInvisible);
 428         folderFlag = (myCInfoPBPtr->hFileInfo.ioFlAttrib & 0x10);
 429
 430         // because the semantics of the filter proc are "true means don't show
 431         // it" we need to invert the result that we return
 432
 433         return !(visibleFlag && folderFlag);
 434 }
 435
 436 wxDirDialog::wxDirDialog(wxWindow *parent, const wxString& message,
 437         const wxString& defaultPath,
 438         long style, const wxPoint& pos)
 439 {
 440     m_message = message;
 441     m_dialogStyle = style;
 442     m_parent = parent;
 443         m_path = defaultPath;
 444 }
 445
 446 int wxDirDialog::ShowModal()
 447 {
 448         {
 449                 Str255                          prompt ;
 450                 Str255                          path ;
 451
 452                 strcpy((char *)prompt, m_message) ;
 453                 c2pstr((char *)prompt ) ;
 454
 455                 strcpy((char *)path, m_path ) ;
 456                 c2pstr((char *)path ) ;
 457
 458                 StandardFileReply       reply ;
 459                 FileFilterYDUPP         invisiblesExcludedCustomFilterUPP = 0 ;
 460                 #if !TARGET_CARBON
 461                 invisiblesExcludedCustomFilterUPP =
 462                         NewFileFilterYDProc(OnlyVisibleFoldersCustomFileFilter);
 463                 #endif
 464
 465                 StandardGetFolder( prompt , path , invisiblesExcludedCustomFilterUPP, &reply);
 466
 467                 #if !TARGET_CARBON
 468                 DisposeRoutineDescriptor(invisiblesExcludedCustomFilterUPP);
 469                 #endif
 470                 if ( reply.sfGood == false )
 471                 {
 472                         m_path = "" ;
 473                         return wxID_CANCEL ;
 474                 }
 475                 else
 476                 {
 477                         m_path = wxMacFSSpec2UnixFilename( &reply.sfFile ) ;
 478                         return wxID_OK ;
 479                 }
 480         }
 481         return wxID_CANCEL;
 482 }
 483