// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
-// Licence: wxWindows licence
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
-#pragma implementation "dataobj.h"
+ #pragma implementation "dataobj.h"
#endif
#include "wx/dataobj.h"
#include "wx/app.h"
+#include "wx/debug.h"
+#include "wx/mstream.h"
+#include "wx/image.h"
+
+#include "gdk/gdk.h"
+
+
+//-------------------------------------------------------------------------
+// global data
+//-------------------------------------------------------------------------
+
+GdkAtom g_textAtom = 0;
+GdkAtom g_pngAtom = 0;
+GdkAtom g_fileAtom = 0;
+
+//-------------------------------------------------------------------------
+// wxDataFormat
+//-------------------------------------------------------------------------
+
+wxDataFormat::wxDataFormat()
+{
+ PrepareFormats();
+ m_type = wxDF_INVALID;
+ m_format = (GdkAtom) 0;
+}
+
+wxDataFormat::wxDataFormat( wxDataFormatId type )
+{
+ PrepareFormats();
+ SetType( type );
+}
+
+wxDataFormat::wxDataFormat( const wxChar *id )
+{
+ PrepareFormats();
+ SetId( id );
+}
+
+wxDataFormat::wxDataFormat( const wxString &id )
+{
+ PrepareFormats();
+ SetId( id );
+}
+
+wxDataFormat::wxDataFormat( NativeFormat format )
+{
+ PrepareFormats();
+ SetId( format );
+}
+
+void wxDataFormat::SetType( wxDataFormatId type )
+{
+ m_type = type;
+
+ if (m_type == wxDF_TEXT)
+ m_format = g_textAtom;
+ else
+ if (m_type == wxDF_BITMAP)
+ m_format = g_pngAtom;
+ else
+ if (m_type == wxDF_FILENAME)
+ m_format = g_fileAtom;
+ else
+ {
+ wxFAIL_MSG( wxT("invalid dataformat") );
+ }
+}
+
+wxDataFormatId wxDataFormat::GetType() const
+{
+ return m_type;
+}
+
+wxString wxDataFormat::GetId() const
+{
+ wxString ret( gdk_atom_name( m_format ) ); // this will convert from ascii to Unicode
+ return ret;
+}
+
+void wxDataFormat::SetId( NativeFormat format )
+{
+ m_format = format;
+
+ if (m_format == g_textAtom)
+ m_type = wxDF_TEXT;
+ else
+ if (m_format == g_pngAtom)
+ m_type = wxDF_BITMAP;
+ else
+ if (m_format == g_fileAtom)
+ m_type = wxDF_FILENAME;
+ else
+ m_type = wxDF_PRIVATE;
+}
+
+void wxDataFormat::SetId( const wxChar *id )
+{
+ m_type = wxDF_PRIVATE;
+ wxString tmp( id );
+ m_format = gdk_atom_intern( wxMBSTRINGCAST tmp.mbc_str(), FALSE ); // what is the string cast for?
+}
+
+void wxDataFormat::PrepareFormats()
+{
+ if (!g_textAtom)
+ g_textAtom = gdk_atom_intern( "STRING", FALSE );
+ if (!g_pngAtom)
+ g_pngAtom = gdk_atom_intern( "image/png", FALSE );
+ if (!g_fileAtom)
+ g_fileAtom = gdk_atom_intern( "file:ALL", FALSE );
+}
//-------------------------------------------------------------------------
// wxDataObject
IMPLEMENT_ABSTRACT_CLASS( wxDataObject, wxObject )
+wxDataObject::wxDataObject()
+{
+}
+
+wxDataObject::~wxDataObject()
+{
+}
+
+bool wxDataObject::IsSupportedFormat(const wxDataFormat& format) const
+{
+ size_t nFormatCount = GetFormatCount();
+ if ( nFormatCount == 1 ) {
+ return format == GetPreferredFormat();
+ }
+ else {
+ wxDataFormat *formats = new wxDataFormat[nFormatCount];
+ GetAllFormats(formats);
+
+ size_t n;
+ for ( n = 0; n < nFormatCount; n++ ) {
+ if ( formats[n] == format )
+ break;
+ }
+
+ delete [] formats;
+
+ // found?
+ return n < nFormatCount;
+ }
+}
+
+
// ----------------------------------------------------------------------------
// wxTextDataObject
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS( wxTextDataObject, wxDataObject )
+wxTextDataObject::wxTextDataObject()
+{
+}
+
+wxTextDataObject::wxTextDataObject(const wxString& strText)
+ : m_strText(strText)
+{
+}
+
+size_t wxTextDataObject::GetDataSize(const wxDataFormat& format) const
+{
+ return m_strText.Len() + 1; // +1 for trailing '\0'of course
+}
+
+bool wxTextDataObject::GetDataHere(const wxDataFormat& format, void *buf) const
+{
+ memcpy(buf, m_strText.c_str(), GetDataSize(format));
+ return TRUE;
+}
+
+bool wxTextDataObject::SetData(const wxDataFormat& format, const void *buf)
+{
+ m_strText = (const wxChar *)buf;
+ return TRUE;
+}
+
// ----------------------------------------------------------------------------
// wxFileDataObject
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS( wxFileDataObject, wxDataObject )
+wxFileDataObject::wxFileDataObject()
+{
+}
+
+void wxFileDataObject::AddFile( const wxString &file )
+{
+ m_files += file;
+ m_files += (wxChar)0;
+}
+
+wxString wxFileDataObject::GetFiles() const
+{
+ return m_files;
+}
+
+bool wxFileDataObject::GetDataHere(const wxDataFormat& format, void *buf) const
+{
+ if (format == wxDF_FILENAME)
+ {
+ memcpy( buf, m_files.mbc_str(), m_files.Len() + 1 );
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+size_t wxFileDataObject::GetDataSize(const wxDataFormat& format) const
+{
+ if (format != wxDF_FILENAME) return 0;
+
+ return m_files.Len() + 1;
+}
+
+bool wxFileDataObject::SetData(const wxDataFormat& format, const void *buf)
+{
+ if (format != wxDF_FILENAME)
+ return FALSE;
+
+ m_files = (char*)(buf); // this is so ugly, I cannot look at it
+
+ return TRUE;
+}
+
// ----------------------------------------------------------------------------
// wxBitmapDataObject
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS( wxBitmapDataObject, wxDataObject )
+wxBitmapDataObject::wxBitmapDataObject()
+{
+ m_pngData = (void*)NULL;
+ m_pngSize = 0;
+}
+
+wxBitmapDataObject::wxBitmapDataObject( const wxBitmap& bitmap )
+{
+ m_pngData = (void*)NULL;
+ m_pngSize = 0;
+ m_bitmap = bitmap;
+ DoConvertToPng();
+}
+
+wxBitmapDataObject::~wxBitmapDataObject()
+{
+ if (m_pngData)
+ delete[] m_pngData;
+}
+
+void wxBitmapDataObject::SetBitmap( const wxBitmap &bitmap )
+{
+ if (m_pngData)
+ delete[] m_pngData;
+ m_pngData = (void*)NULL;
+ m_pngSize = 0;
+
+ m_bitmap = bitmap;
+ DoConvertToPng();
+}
+
+size_t wxBitmapDataObject::GetDataSize(const wxDataFormat& format) const
+{
+ if (format != wxDF_BITMAP) return 0;
+
+ return m_pngSize;
+}
+
+bool wxBitmapDataObject::GetDataHere(const wxDataFormat& format, void *buf) const
+{
+ if (format != wxDF_BITMAP) return FALSE;
+
+ if (m_pngSize > 0)
+ {
+ memcpy(buf, m_pngData, m_pngSize);
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+bool wxBitmapDataObject::SetData(const wxDataFormat& format, const void *buf)
+{
+ if (m_pngData) delete[] m_pngData;
+ m_pngData = (void*) NULL;
+ m_pngSize = 0;
+ m_bitmap = wxNullBitmap;
+
+ return FALSE;
+}
+
+void wxBitmapDataObject::SetPngData(const void *buf, size_t size)
+{
+ if (m_pngData) delete[] m_pngData;
+ m_pngSize = size;
+ m_pngData = (void*) new char[m_pngSize];
+
+ memcpy( m_pngData, buf, m_pngSize );
+
+ wxMemoryInputStream mstream( (char*) m_pngData, m_pngSize );
+ wxImage image;
+ wxPNGHandler handler;
+ handler.LoadFile( &image, mstream );
+ m_bitmap = image.ConvertToBitmap();
+}
+
+void wxBitmapDataObject::DoConvertToPng()
+{
+ if (!m_bitmap.Ok()) return;
+
+ wxImage image( m_bitmap );
+ wxPNGHandler handler;
+
+ wxCountingOutputStream count;
+ handler.SaveFile( &image, count );
+ m_pngSize = count.GetSize() + 100; // sometimes the size seems to vary ???
+ m_pngData = (void*) new char[m_pngSize];
+
+ wxMemoryOutputStream mstream( (char*) m_pngData, m_pngSize );
+ handler.SaveFile( &image, mstream );
+}
+
// ----------------------------------------------------------------------------
// wxPrivateDataObject
// ----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS( wxPrivateDataObject, wxDataObject )
+IMPLEMENT_CLASS( wxPrivateDataObject, wxDataObject )
-wxPrivateDataObject::wxPrivateDataObject()
-{
- m_size = 0;
- m_data = (char*) NULL;
- m_id = wxTheApp->GetAppName();
+void wxPrivateDataObject::Free()
+{
+ if ( m_data )
+ free(m_data);
}
-
-wxPrivateDataObject::~wxPrivateDataObject()
-{
- if (m_data) delete[] m_data;
+
+wxPrivateDataObject::wxPrivateDataObject()
+{
+ wxString id = wxT("application/");
+ id += wxTheApp->GetAppName();
+
+ m_format.SetId( id );
+
+ m_size = 0;
+ m_data = (void *)NULL;
}
-
-void wxPrivateDataObject::SetData( const char *data, size_t size )
+
+void wxPrivateDataObject::SetData( const void *data, size_t size )
{
+ Free();
+
m_size = size;
-
- if (m_data) delete[] m_data;
-
- m_data = new char[size];
+ m_data = malloc(size);
- memcpy( m_data, data, size );
+ memcpy( m_data, data, size );
+}
+
+void wxPrivateDataObject::WriteData( void *dest ) const
+{
+ WriteData( m_data, dest );
+}
+
+size_t wxPrivateDataObject::GetSize() const
+{
+ return m_size;
+}
+
+void wxPrivateDataObject::WriteData( const void *data, void *dest ) const
+{
+ memcpy( dest, data, GetSize() );
}
projects / wxWidgets.git / blobdiff