making implementation independent of a wx-peer of that control

[wxWidgets.git] / src / mac / carbon / dataobj.cpp

diff --git a/src/mac/carbon/dataobj.cpp b/src/mac/carbon/dataobj.cpp
index 5949c6300b088c908ee83c8ab1644783dc1fc883..65401b5f33931e1ba76073fe81b588886540ec25 100644 (file)
--- a/src/mac/carbon/dataobj.cpp
+++ b/src/mac/carbon/dataobj.cpp
@@ -17,24 +17,27 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
   #pragma implementation "dataobj.h"
 #endif
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
+#if wxUSE_DATAOBJ
+
 #ifndef WX_PRECOMP
 #include "wx/intl.h"
 #endif
-#include "wx/defs.h"
 
 #include "wx/log.h"
 #include "wx/dataobj.h"
+#include "wx/dcmemory.h"
 #include "wx/mstream.h"
 #include "wx/image.h"
+#include "wx/metafile.h"
 #include "wx/mac/private.h"
-#include "Scrap.h"
+#include <Scrap.h>
 
 // ----------------------------------------------------------------------------
 // functions
@@ -85,19 +88,21 @@ void wxDataFormat::SetType(  wxDataFormatId  Type )
     else
     {
        wxFAIL_MSG( wxT("invalid dataformat") );
-    }
-}
 
-wxDataFormatId wxDataFormat::GetType() const
-{
-    return m_type;
+       // this is '????' but it can't be used in the code because ??' is
+       // parsed as a trigraph!
+       m_format = 0x3f3f3f3f;
+    }
 }
 
 wxString wxDataFormat::GetId() const
 {
-       char text[5] ;
-       strncpy( text , (char*) m_format , 4 ) ;
-       text[4] = 0 ;
+    // note that m_format is not a pointer to string, it *is* itself a 4
+    // character string
+    char text[5] ;
+    strncpy( text , (char*) &m_format , 4 ) ;
+    text[4] = 0 ;
+
     return wxString::FromAscii( text ) ;
 }
 
@@ -107,14 +112,11 @@ void wxDataFormat::SetId(  NativeFormat  format )
 
     if (m_format == kScrapFlavorTypeText)
         m_type = wxDF_TEXT;
-    else
-    if (m_format == kScrapFlavorTypeUnicode )
+    else if (m_format == kScrapFlavorTypeUnicode )
         m_type = wxDF_UNICODETEXT;
-    else
-    if (m_format == kScrapFlavorTypePicture)
+    else if (m_format == kScrapFlavorTypePicture)
         m_type = wxDF_BITMAP;
-    else
-    if (m_format == kDragFlavorTypeHFS )
+    else if (m_format == kDragFlavorTypeHFS )
         m_type = wxDF_FILENAME;
     else
         m_type = wxDF_PRIVATE;
@@ -122,8 +124,6 @@ void wxDataFormat::SetId(  NativeFormat  format )
 
 void wxDataFormat::SetId( const wxChar* zId )
 {
-    wxString                        tmp(zId);
-
     m_type = wxDF_PRIVATE;
     m_format = 0;// TODO: get the format gdk_atom_intern( wxMBSTRINGCAST tmp.mbc_str(), FALSE );
 }
@@ -169,6 +169,19 @@ bool wxDataObject::IsSupportedFormat(
     }
 }
 
+// ----------------------------------------------------------------------------
+// wxTextDataObject
+// ----------------------------------------------------------------------------
+
+#if wxUSE_UNICODE
+void wxTextDataObject::GetAllFormats(wxDataFormat *formats, wxDataObjectBase::Direction dir) const
+{
+    *formats++ = wxDataFormat( wxDF_TEXT );
+    *formats = wxDataFormat( wxDF_UNICODETEXT );
+}
+
+#endif
+
 // ----------------------------------------------------------------------------
 // wxFileDataObject
 // ----------------------------------------------------------------------------
@@ -209,7 +222,10 @@ bool wxFileDataObject::SetData(
 {
     m_filenames.Empty();
 
-    AddFile(wxString::FromAscii((char*)pBuf));
+    // only add if this is not an empty string
+    // we can therefore clear the list by just setting an empty string
+    if ( (*(char*)pBuf) != 0 )
+        AddFile(wxString::FromAscii((char*)pBuf));
 
     return TRUE;
 }
@@ -238,7 +254,8 @@ wxBitmapDataObject::wxBitmapDataObject(
     Init();
     if ( m_bitmap.Ok() )
     {
-        m_pictHandle = m_bitmap.GetPict( &m_pictCreated ) ;
+        m_pictHandle = m_bitmap.GetBitmapData()->GetPictHandle() ;
+        m_pictCreated = false ;
     }
 }
 
@@ -255,7 +272,8 @@ void wxBitmapDataObject::SetBitmap(
     wxBitmapDataObjectBase::SetBitmap(rBitmap);
     if ( m_bitmap.Ok() )
     {
-        m_pictHandle = m_bitmap.GetPict( &m_pictCreated ) ;
+        m_pictHandle = m_bitmap.GetBitmapData()->GetPictHandle() ;
+        m_pictCreated = false ;
     }
 }
 
@@ -301,11 +319,19 @@ bool wxBitmapDataObject::SetData(
     PicHandle picHandle = (PicHandle) NewHandle( nSize ) ;
     memcpy( *picHandle , pBuf , nSize ) ;
     m_pictHandle = picHandle ;
+    // ownership is transferred to the bitmap
     m_pictCreated = false ;
     Rect frame = (**picHandle).picFrame ;
     
-    m_bitmap.SetPict( picHandle ) ;
-    m_bitmap.SetWidth( frame.right - frame.left ) ;
-    m_bitmap.SetHeight( frame.bottom - frame.top ) ;
+    wxMetafile mf ;
+    mf.SetHMETAFILE( (WXHMETAFILE) m_pictHandle ) ;
+    wxMemoryDC mdc ;
+    m_bitmap.Create( frame.right - frame.left ,frame.bottom - frame.top ) ;
+    mdc.SelectObject(m_bitmap ) ;
+    mf.Play( &mdc ) ;
+    mdc.SelectObject( wxNullBitmap ) ;
+    
     return m_bitmap.Ok();
 }
+
+#endif
\ No newline at end of file