X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dc8928439fa4bc0cfa69e98a98a7831dff3d459b..a5655d37db9baabce654849fd66173f95f74e230:/src/common/dobjcmn.cpp

diff --git a/src/common/dobjcmn.cpp b/src/common/dobjcmn.cpp
index 20d6b2999c..271144ee76 100644
--- a/src/common/dobjcmn.cpp
+++ b/src/common/dobjcmn.cpp
@@ -111,31 +111,9 @@ wxDataObjectComposite::GetObject(const wxDataFormat& format, wxDataObjectBase::D
 
 void wxDataObjectComposite::Add(wxDataObjectSimple *dataObject, bool preferred)
 {
-   // check if the data format of the passed object already exists in the composite data object, if this is the case
-   // do not add the data object and display a message in debug mode (otherwise this method fails silently):
-   // start checking if the data format exists for the 'GET' direction:
-    size_t indexFormats;
-    size_t noOfFormats;
-    wxDataFormat* formats;
-    
-    noOfFormats = dataObject->GetFormatCount(wxDataObjectBase::Get);
-    formats = new wxDataFormat[noOfFormats];
-    for (indexFormats=0; indexFormats<noOfFormats; ++indexFormats)
-      wxCHECK_RET(this->GetObject(formats[indexFormats],wxDataObjectBase::Get) == NULL,
-                  _("The data format for the GET-direction of the to be added data object already exists"));
-    delete[] formats;
-   // do the same with the 'SET' direction:
-    noOfFormats = dataObject->GetFormatCount(wxDataObjectBase::Set);
-    
-    formats = new wxDataFormat[noOfFormats];
-    for (indexFormats=0; indexFormats<noOfFormats; ++indexFormats)
-      wxCHECK_RET(this->GetObject(formats[indexFormats],wxDataObjectBase::Set) == NULL,
-                  _("The data format for the SET-direction of the to be added data object already exists"));
-    delete[] formats;
-
-   // if we reach this location the data object can simply be appended:
     if ( preferred )
         m_preferred = m_dataObjects.GetCount();
+
     m_dataObjects.Append( dataObject );
 }
 
@@ -195,10 +173,18 @@ void* wxDataObjectComposite::SetSizeInBuffer( void* buffer, size_t size,
 
 #endif
 
-size_t wxDataObjectComposite::GetFormatCount(Direction WXUNUSED(dir)) const
+size_t wxDataObjectComposite::GetFormatCount(Direction dir) const
 {
-    // TODO what about the Get/Set only formats?
-    return m_dataObjects.GetCount();
+    size_t n = 0;
+
+    // NOTE: some wxDataObjectSimple objects may return a number greater than 1
+    //       from GetFormatCount(): this is the case of e.g. wxTextDataObject
+    //       under wxMac and wxGTK
+    wxSimpleDataObjectList::compatibility_iterator node;
+    for ( node = m_dataObjects.GetFirst(); node; node = node->GetNext() )
+        n += node->GetData()->GetFormatCount(dir);
+
+    return n;
 }
 
 void wxDataObjectComposite::GetAllFormats(wxDataFormat *formats,
@@ -209,8 +195,11 @@ void wxDataObjectComposite::GetAllFormats(wxDataFormat *formats,
 
     for ( node = m_dataObjects.GetFirst(); node; node = node->GetNext() )
     {
-      node->GetData()->GetAllFormats(formats+index,dir);
-      index += node->GetData()->GetFormatCount(dir);
+        // NOTE: some wxDataObjectSimple objects may return more than 1 format
+        //       from GetAllFormats(): this is the case of e.g. wxTextDataObject
+        //       under wxMac and wxGTK
+        node->GetData()->GetAllFormats(formats+index, dir);
+        index += node->GetData()->GetFormatCount(dir);
     }
 }
 
@@ -422,14 +411,16 @@ size_t wxTextDataObject::GetDataSize() const
 
 bool wxTextDataObject::GetDataHere(void *buf) const
 {
-    wxStrcpy( (wxChar*)buf, GetText().c_str() );
+    // NOTE: use wxTmemcpy() instead of wxStrncpy() to allow
+    //       retrieval of strings with embedded NULLs
+    wxTmemcpy( (wxChar*)buf, GetText().c_str(), GetTextLength() );
 
     return true;
 }
 
-bool wxTextDataObject::SetData(size_t WXUNUSED(len), const void *buf)
+bool wxTextDataObject::SetData(size_t len, const void *buf)
 {
-    SetText( wxString((const wxChar*)buf) );
+    SetText( wxString((const wxChar*)buf, len/sizeof(wxChar)) );
 
     return true;
 }