// 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;
+
+//-------------------------------------------------------------------------
+// wxDataFormat
+//-------------------------------------------------------------------------
+
+IMPLEMENT_CLASS(wxDataFormat, wxObject)
+
+wxDataFormat::wxDataFormat()
+{
+ PrepareFormats();
+ m_type = wxDF_INVALID;
+ m_hasAtom = FALSE;
+ m_atom = (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( const wxDataFormat &format )
+{
+ PrepareFormats();
+ m_type = format.GetType();
+ m_id = format.GetId();
+ m_hasAtom = TRUE;
+ m_atom = ((wxDataFormat &)format).GetAtom(); // const_cast
+}
+
+wxDataFormat::wxDataFormat( const GdkAtom atom )
+{
+ PrepareFormats();
+ m_hasAtom = TRUE;
+
+ m_atom = atom;
+
+ if (m_atom == g_textAtom)
+ {
+ m_type = wxDF_TEXT;
+ } else
+ if (m_atom == GDK_TARGET_BITMAP)
+ {
+ m_type = wxDF_BITMAP;
+ } else
+ {
+ m_type = wxDF_PRIVATE;
+ m_id = gdk_atom_name( m_atom );
+
+ if (m_id == _T("file:ALL"))
+ {
+ m_type = wxDF_FILENAME;
+ }
+ }
+}
+
+void wxDataFormat::SetType( wxDataFormatId type )
+{
+ m_type = type;
+
+ if (m_type == wxDF_TEXT)
+ {
+ m_id = _T("STRING");
+ }
+ else
+ if (m_type == wxDF_BITMAP)
+ {
+ m_id = _T("image/png");
+ }
+ else
+ if (m_type == wxDF_FILENAME)
+ {
+ m_id = _T("file:ALL");
+ }
+ else
+ {
+ wxFAIL_MSG( _T("invalid dataformat") );
+ }
+
+ m_hasAtom = FALSE;
+}
+
+wxDataFormatId wxDataFormat::GetType() const
+{
+ return m_type;
+}
+
+wxString wxDataFormat::GetId() const
+{
+ return m_id;
+}
+
+void wxDataFormat::SetId( const wxChar *id )
+{
+ m_type = wxDF_PRIVATE;
+ m_id = id;
+ m_hasAtom = FALSE;
+}
+
+GdkAtom wxDataFormat::GetAtom()
+{
+ if (!m_hasAtom)
+ {
+ m_hasAtom = TRUE;
+
+ if (m_type == wxDF_TEXT)
+ {
+ m_atom = g_textAtom;
+ }
+ else
+ if (m_type == wxDF_BITMAP)
+ {
+ m_atom = GDK_TARGET_BITMAP;
+ }
+ else
+ if (m_type == wxDF_PRIVATE)
+ {
+ m_atom = gdk_atom_intern( MBSTRINGCAST m_id.mbc_str(), FALSE );
+ }
+ else
+ if (m_type == wxDF_FILENAME)
+ {
+ m_atom = gdk_atom_intern( "file:ALL", FALSE );
+ }
+ else
+ {
+ m_hasAtom = FALSE;
+ m_atom = (GdkAtom) 0;
+ }
+ }
+
+ return m_atom;
+}
+
+void wxDataFormat::PrepareFormats()
+{
+ if (!g_textAtom) g_textAtom = gdk_atom_intern( "STRING", FALSE );
+ if (!g_pngAtom) g_pngAtom = gdk_atom_intern( "image/png", FALSE );
+}
+
+//-------------------------------------------------------------------------
+// wxDataBroker
+//-------------------------------------------------------------------------
+
+IMPLEMENT_CLASS(wxDataBroker,wxObject)
+
+wxDataBroker::wxDataBroker()
+{
+ m_dataObjects.DeleteContents(TRUE);
+ m_preferred = 0;
+}
+
+void wxDataBroker::Add( wxDataObject *dataObject, bool preferred )
+{
+ if (preferred) m_preferred = m_dataObjects.GetCount();
+ m_dataObjects.Append( dataObject );
+}
+
+size_t wxDataBroker::GetFormatCount() const
+{
+ return m_dataObjects.GetCount();
+}
+
+wxDataFormatId wxDataBroker::GetPreferredFormat() const
+{
+ wxNode *node = m_dataObjects.Nth( m_preferred );
+
+ wxASSERT( node );
+
+ wxDataObject* data_obj = (wxDataObject*)node->Data();
+
+ return data_obj->GetFormat().GetType();
+}
+
+wxDataFormat &wxDataBroker::GetNthFormat( size_t nth ) const
+{
+ wxNode *node = m_dataObjects.Nth( nth );
+
+ wxASSERT( node );
+
+ wxDataObject* data_obj = (wxDataObject*)node->Data();
+
+ return data_obj->GetFormat();
+}
+
+bool wxDataBroker::IsSupportedFormat( wxDataFormat &format ) const
+{
+ wxNode *node = m_dataObjects.First();
+ while (node)
+ {
+ wxDataObject *dobj = (wxDataObject*)node->Data();
+
+ if (dobj->GetFormat().GetAtom() == format.GetAtom())
+ {
+ return TRUE;
+ }
+
+ node = node->Next();
+ }
+
+ return FALSE;
+}
+
+size_t wxDataBroker::GetSize( wxDataFormat& format ) const
+{
+ wxNode *node = m_dataObjects.First();
+ while (node)
+ {
+ wxDataObject *dobj = (wxDataObject*)node->Data();
+
+ if (dobj->GetFormat().GetAtom() == format.GetAtom())
+ {
+ return dobj->GetSize();
+ }
+
+ node = node->Next();
+ }
+
+ return 0;
+}
+
+void wxDataBroker::WriteData( wxDataFormat& format, void *dest ) const
+{
+ wxNode *node = m_dataObjects.First();
+ while (node)
+ {
+ wxDataObject *dobj = (wxDataObject*)node->Data();
+
+ if (dobj->GetFormat().GetAtom() == format.GetAtom())
+ {
+ dobj->WriteData( dest );
+ }
+
+ node = node->Next();
+ }
+}
//-------------------------------------------------------------------------
// wxDataObject
IMPLEMENT_ABSTRACT_CLASS( wxDataObject, wxObject )
+wxDataObject::wxDataObject()
+{
+}
+
+wxDataObject::~wxDataObject()
+{
+}
+
+wxDataFormat &wxDataObject::GetFormat()
+{
+ return m_format;
+}
+
+wxDataFormatId wxDataObject::GetFormatType() const
+{
+ return m_format.GetType();
+}
+
+wxString wxDataObject::GetFormatId() const
+{
+ return m_format.GetId();
+}
+
+GdkAtom wxDataObject::GetFormatAtom() const
+{
+ GdkAtom ret = ((wxDataObject*) this)->m_format.GetAtom();
+ return ret;
+}
+
// ----------------------------------------------------------------------------
// wxTextDataObject
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS( wxTextDataObject, wxDataObject )
+wxTextDataObject::wxTextDataObject()
+{
+ m_format.SetType( wxDF_TEXT );
+}
+
+wxTextDataObject::wxTextDataObject( const wxString& data )
+{
+ m_format.SetType( wxDF_TEXT );
+
+ m_data = data;
+}
+
+void wxTextDataObject::SetText( const wxString& data )
+{
+ m_data = data;
+}
+
+wxString wxTextDataObject::GetText() const
+{
+ return m_data;
+}
+
+void wxTextDataObject::WriteData( void *dest ) const
+{
+ WriteString( m_data, dest );
+}
+
+size_t wxTextDataObject::GetSize() const
+{
+ return m_data.Len() + 1;
+}
+
+void wxTextDataObject::WriteString( const wxString &str, void *dest ) const
+{
+ memcpy( dest, str.mb_str(), str.Len()+1 );
+}
+
// ----------------------------------------------------------------------------
// wxFileDataObject
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS( wxFileDataObject, wxDataObject )
+wxFileDataObject::wxFileDataObject()
+{
+ m_format.SetType( wxDF_FILENAME );
+}
+
+void wxFileDataObject::AddFile( const wxString &file )
+{
+ m_files += file;
+ m_files += (wxChar)0;
+}
+
+wxString wxFileDataObject::GetFiles() const
+{
+ return m_files;
+}
+
+void wxFileDataObject::WriteData( void *dest ) const
+{
+ memcpy( dest, m_files.mbc_str(), GetSize() );
+}
+
+size_t wxFileDataObject::GetSize() const
+{
+ return m_files.Len() + 1;
+}
+
// ----------------------------------------------------------------------------
// wxBitmapDataObject
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS( wxBitmapDataObject, wxDataObject )
+wxBitmapDataObject::wxBitmapDataObject()
+{
+ m_format.SetType( wxDF_BITMAP );
+ m_pngData = (char*)NULL;
+ m_pngSize = 0;
+}
+
+wxBitmapDataObject::wxBitmapDataObject( const wxBitmap& bitmap )
+{
+ m_format.SetType( wxDF_BITMAP );
+ m_pngData = (char*)NULL;
+ m_pngSize = 0;
+ m_bitmap = bitmap;
+ DoConvertToPng();
+}
+
+wxBitmapDataObject::~wxBitmapDataObject()
+{
+ if (m_pngData) delete[] m_pngData;
+}
+
+void wxBitmapDataObject::SetBitmap( const wxBitmap &bitmap )
+{
+ m_bitmap = bitmap;
+ DoConvertToPng();
+}
+
+wxBitmap wxBitmapDataObject::GetBitmap() const
+{
+ return m_bitmap;
+}
+
+void wxBitmapDataObject::WriteData( void *dest ) const
+{
+ WriteBitmap( m_bitmap, dest );
+}
+
+size_t wxBitmapDataObject::GetSize() const
+{
+ return m_pngSize;
+}
+
+void wxBitmapDataObject::WriteBitmap( const wxBitmap &bitmap, void *dest ) const
+{
+// if (m_bitmap == bitmap)
+ memcpy( dest, m_pngData, m_pngSize );
+}
+
+void wxBitmapDataObject::SetPngData( const char *pngData, size_t pngSize )
+{
+ if (m_pngData) delete[] m_pngData;
+ m_pngData = (char*) NULL;
+ m_pngSize = pngSize;
+ m_pngData = new char[m_pngSize];
+ memcpy( m_pngData, pngData, m_pngSize );
+
+ wxMemoryInputStream mstream( pngData, pngSize );
+ wxImage image;
+ wxPNGHandler handler;
+ handler.LoadFile( &image, mstream );
+ m_bitmap = image.ConvertToBitmap();
+}
+
+void wxBitmapDataObject::DoConvertToPng()
+{
+ if (m_pngData) delete[] m_pngData;
+
+ 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 = new char[m_pngSize];
+
+ wxMemoryOutputStream mstream( m_pngData, m_pngSize );
+ handler.SaveFile( &image, mstream );
+}
+
// ----------------------------------------------------------------------------
// wxPrivateDataObject
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_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 = _T("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 );
+}
+
+void wxPrivateDataObject::WriteData( void *dest ) const
+{
+ WriteData( m_data, dest );
+}
+
+size_t wxPrivateDataObject::GetSize() const
+{
+ return m_size;
+}
- memcpy( m_data, data, size );
+void wxPrivateDataObject::WriteData( const void *data, void *dest ) const
+{
+ memcpy( dest, data, GetSize() );
}
projects / wxWidgets.git / blobdiff