*** empty log message ***

[wxWidgets.git] / src / gtk1 / dataobj.cpp

diff --git a/src/gtk1/dataobj.cpp b/src/gtk1/dataobj.cpp
index 353633fc7c3982b2628daa1de2d80ab4240fc204..401dca0db08ec576f742f0633aff9ac960f674fe 100644 (file)
--- a/src/gtk1/dataobj.cpp
+++ b/src/gtk1/dataobj.cpp
@@ -4,15 +4,126 @@
 // 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;
+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
 
 //-------------------------------------------------------------------------
 // wxDataObject


@@ -20,50 +131,262 @@
 
 IMPLEMENT_ABSTRACT_CLASS( wxDataObject, wxObject )
 
 
 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
 // ----------------------------------------------------------------------------
 
 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
 // ----------------------------------------------------------------------------
 
 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
 // ----------------------------------------------------------------------------
 
 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
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 // 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;
     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() );

 }
 
 }