Made wxNO_DEFAULT set the "no" button as the default, according to the docs

[wxWidgets.git] / src / gtk / dataobj.cpp

diff --git a/src/gtk/dataobj.cpp b/src/gtk/dataobj.cpp
index 353633fc7c3982b2628daa1de2d80ab4240fc204..1e87427cd71d24e8a2ae581faca475e00b0c5c77 100644 (file)
--- a/src/gtk/dataobj.cpp
+++ b/src/gtk/dataobj.cpp
@@ -4,15 +4,276 @@
 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling

-// Licence:    wxWindows licence
+// Licence:     wxWindows licence

 ///////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
 ///////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__

-#pragma implementation "dataobj.h"
+    #pragma implementation "dataobj.h"

 #endif
 
 #include "wx/dataobj.h"
 #include "wx/app.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
 
 //-------------------------------------------------------------------------
 // wxDataObject


@@ -20,50 +281,240 @@
 
 IMPLEMENT_ABSTRACT_CLASS( wxDataObject, wxObject )
 
 
 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
 // ----------------------------------------------------------------------------
 
 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
 // ----------------------------------------------------------------------------
 
 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
 // ----------------------------------------------------------------------------
 
 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
 // ----------------------------------------------------------------------------
 
 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;
     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() );

 }
 
 }