Add comment on files with no "Transfer Syntax"

[gdcm.git] / src / gdcmDocument.cxx

diff --git a/src/gdcmDocument.cxx b/src/gdcmDocument.cxx
index 3dc2920c89d7b885cef9f363e393b0d64210fd76..5f6d117066a1b0b01e0bc889ccc336bcad3df691 100644 (file)
--- a/src/gdcmDocument.cxx
+++ b/src/gdcmDocument.cxx
@@ -3,8 +3,8 @@
   Program:   gdcm
   Module:    $RCSfile: gdcmDocument.cxx,v $
   Language:  C++
-  Date:      $Date: 2005/10/21 07:38:58 $
-  Version:   $Revision: 1.302 $
+  Date:      $Date: 2005/10/26 06:34:03 $
+  Version:   $Revision: 1.309 $
                                                                                 
   Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
   l'Image). All rights reserved. See Doc/License.txt or
@@ -386,7 +386,8 @@ FileType Document::GetFileType()
  * \brief   Accessor to the Transfer Syntax (when present) of the
  *          current document (it internally handles reading the
  *          value from disk when only parsing occured).
- * @return  The encountered Transfer Syntax of the current document.
+ * @return  The encountered Transfer Syntax of the current document, if DICOM.
+ *          GDCM_UNKNOWN for ACR-NEMA files (or broken headers ...)
  */
 std::string Document::GetTransferSyntax()
 {
@@ -605,7 +606,7 @@ void Document::WriteContent(std::ofstream *fp, FileType filetype)
    // Skip if user wants to write an ACR-NEMA file
 
    if ( filetype == ImplicitVR || filetype == ExplicitVR ||
-     filetype == JPEG )
+        filetype == JPEG )
    {
       // writing Dicom File Preamble
       char filePreamble[128];
@@ -684,7 +685,7 @@ void Document::LoadEntryBinArea(DataEntry *entry)
       return;
    }
 
-   // Read the datas
+   // Read the data
    Fp->read((char*)data, l);
    if ( Fp->fail() || Fp->eof() )
    {
@@ -718,7 +719,7 @@ void Document::LoadEntryBinArea(DataEntry *entry)
       }
       case 8:
       {
-         gdcmWarningMacro("Can't swap 64 bits datas");
+         gdcmWarningMacro("Can't swap 64 bits data");
 /*         uint64_t *data64 = (uint64_t *)data;
          for(i=0;i<l/vrLgth;i++)
             data64[i] = SwapLongLong(data64[i]);*/
@@ -903,7 +904,7 @@ int Document::ComputeGroup0002Length( )
             // (no SQ, OW, UT in group 0x0002;)
                if ( vr == "OB" ) 
                {
-                  // explicit VR AND OB, OW, SQ, UT : 4 more bytes
+                  // explicit VR AND (OB, OW, SQ, UT) : 4 more bytes
                   groupLength +=  4;
                }
             //}
@@ -998,16 +999,22 @@ void Document::ParseDES(DocEntrySet *set, long offset,
       if ( newDataEntry )  
       {
          //////////////////////////// DataEntry
+ 
          vr = newDocEntry->GetVR();
+ 
+         // Useless checking, now !
+         /*
          if ( Filetype == ExplicitVR && 
                !Global::GetVR()->IsVROfBinaryRepresentable(vr) )
          { 
                ////// No DataEntry: should mean UNKOWN VR
                gdcmWarningMacro( std::hex << newDocEntry->GetGroup() 
                                  << "|" << newDocEntry->GetElement()
-                                 << " : No DataEntry." 
-                                 "Probably unknown VR.");
+                                 << " : unknown VR." 
+                                 " Probably 'Implicit VR' entry within "
+                                 "an explicit VR 'document'.");
          }
+         */
 
          if ( !set->AddEntry( newDataEntry ) )
          {
@@ -1019,6 +1026,7 @@ void Document::ParseDES(DocEntrySet *set, long offset,
          }
          else
          {
+            newDataEntry->Delete();
             // Load only if we can add (not a duplicate key)
             LoadDocEntry( newDataEntry );
          }
@@ -1051,7 +1059,7 @@ void Document::ParseDES(DocEntrySet *set, long offset,
                (!delim_mode && ((long)(Fp->tellg())-offset) >= l_max) )
          {
             if ( !used )
-               delete newDocEntry;
+               newDocEntry->Delete();
             break;
          }
 
@@ -1081,7 +1089,7 @@ void Document::ParseDES(DocEntrySet *set, long offset,
             if ( newDocEntry->GetGroup()%2 != 0 )
             {
                 Fp->seekg( l, std::ios::cur);
-                delete newDocEntry;  // Delete, not in the set 
+                newDocEntry->Delete();  // Delete, not in the set 
                 continue;  
             } 
          } 
@@ -1089,7 +1097,7 @@ void Document::ParseDES(DocEntrySet *set, long offset,
          {
            // User asked to skip *any* SeQuence
             Fp->seekg( l, std::ios::cur);
-            delete newDocEntry; // Delete, not in the set
+            newDocEntry->Delete(); // Delete, not in the set
             continue;
          }
          // delay the dynamic cast as late as possible
@@ -1138,18 +1146,22 @@ void Document::ParseDES(DocEntrySet *set, long offset,
                                 << newSeqEntry->GetOffset() << " )" ); 
             used = false;
          }
+         else
+         {
+            newDocEntry->Delete();
+         }
  
          if ( !delim_mode && ((long)(Fp->tellg())-offset) >= l_max)
          {
             if ( !used )
-               delete newDocEntry;  
-               break;
+               newDocEntry->Delete();
+            break;
          }
       }  // end SeqEntry : VR = "SQ"
 
       if ( !used )
       {
-         delete newDocEntry;
+         newDocEntry->Delete();
       }
       first = false;
    }                               // end While
@@ -1183,16 +1195,17 @@ void Document::ParseSQ( SeqEntry *seqEntry,
          if ( newDocEntry->IsSequenceDelimitor() )
          {
             seqEntry->SetDelimitationItem( newDocEntry ); 
+            newDocEntry->Delete();
             break;
          }
       }
       if ( !delim_mode && ((long)(Fp->tellg())-offset) >= l_max)
       {
-         delete newDocEntry;
+         newDocEntry->Delete();
          break;
       }
       // create the current SQItem
-      SQItem *itemSQ = new SQItem( seqEntry->GetDepthLevel() );
+      SQItem *itemSQ = SQItem::New( seqEntry->GetDepthLevel() );
       unsigned int l = newDocEntry->GetReadLength();
       
       if ( l == 0xffffffff )
@@ -1206,7 +1219,6 @@ void Document::ParseSQ( SeqEntry *seqEntry,
 
       // Let's try :------------
       // remove fff0,e000, created out of the SQItem
-      delete newDocEntry;
       Fp->seekg(offsetStartCurrentSQItem, std::ios::beg);
       // fill up the current SQItem, starting at the beginning of fff0,e000
 
@@ -1216,6 +1228,8 @@ void Document::ParseSQ( SeqEntry *seqEntry,
       // end try -----------------
  
       seqEntry->AddSQItem( itemSQ, SQItemNumber ); 
+      itemSQ->Delete();
+      newDocEntry->Delete();
       SQItemNumber++;
       if ( !delim_mode && ((long)(Fp->tellg())-offset ) >= l_max )
       {
@@ -1234,7 +1248,7 @@ DocEntry *Document::Backtrack(DocEntry *docEntry)
 {
    // delete the Item Starter, built erroneously out of any Sequence
    // it's not yet in the HTable/chained list
-   delete docEntry;
+   docEntry->Delete();
 
    // Get all info we can from PreviousDocEntry
    uint16_t group = PreviousDocEntry->GetGroup();
@@ -1489,7 +1503,7 @@ VRKey Document::FindDocEntryVR()
    VRKey vr;
    Fp->read(&(vr[0]),(size_t)2);
 
-   gdcmDebugMacro( "--> VR: " << vr )
+   //gdcmDebugMacro( "--> VR: " << vr )
    if ( !CheckDocEntryVR(vr) )
    {
       gdcmWarningMacro( "Unknown VR '" << vr << "'" )
@@ -1969,7 +1983,7 @@ DocEntry *Document::ReadNextDocEntry()
          }
       }
    }
-   gdcmDebugMacro( "Found VR: " << vr << " / Real VR: " << realVR );
+  // gdcmDebugMacro( "Found VR: " << vr << " / Real VR: " << realVR );
 
    DocEntry *newEntry;
    if ( Global::GetVR()->IsVROfSequence(realVR) )
@@ -2006,7 +2020,7 @@ DocEntry *Document::ReadNextDocEntry()
    catch ( FormatError )
    {
       // Call it quits
-      delete newEntry;
+      newEntry->Delete();
       return 0;
    }