// 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"
-
+#include <gdk/gdk.h>
//-------------------------------------------------------------------------
// global data
//-------------------------------------------------------------------------
GdkAtom g_textAtom = 0;
+GdkAtom g_pngAtom = 0;
+GdkAtom g_fileAtom = 0;
//-------------------------------------------------------------------------
// wxDataFormat
//-------------------------------------------------------------------------
-IMPLEMENT_CLASS(wxDataFormat, wxObject)
-
wxDataFormat::wxDataFormat()
{
- if (!g_textAtom) g_textAtom = gdk_atom_intern( "STRING", FALSE );
+ // do *not* call PrepareFormats() from here for 2 reasons:
+ //
+ // 1. we will have time to do it later because some other Set function
+ // must be called before we really need them
+ //
+ // 2. doing so prevents us from declaring global wxDataFormats because
+ // calling PrepareFormats (and thus gdk_atom_intern) before GDK is
+ // initialised will result in a crash
m_type = wxDF_INVALID;
- m_hasAtom = FALSE;
- m_atom = (GdkAtom) 0;
+ m_format = (GdkAtom) 0;
}
-wxDataFormat::wxDataFormat( wxDataType type )
+wxDataFormat::wxDataFormat( wxDataFormatId type )
{
- if (!g_textAtom) g_textAtom = gdk_atom_intern( "STRING", FALSE );
+ PrepareFormats();
SetType( type );
}
-wxDataFormat::wxDataFormat( const char *id )
+wxDataFormat::wxDataFormat( const wxChar *id )
{
- if (!g_textAtom) g_textAtom = gdk_atom_intern( "STRING", FALSE );
+ PrepareFormats();
SetId( id );
}
wxDataFormat::wxDataFormat( const wxString &id )
{
- if (!g_textAtom) g_textAtom = gdk_atom_intern( "STRING", FALSE );
+ PrepareFormats();
SetId( id );
}
-wxDataFormat::wxDataFormat( wxDataFormat &format )
-{
- if (!g_textAtom) g_textAtom = gdk_atom_intern( "STRING", FALSE );
- m_type = format.GetType();
- m_id = format.GetId();
- m_hasAtom = TRUE;
- m_atom = format.GetAtom();
-}
-
-wxDataFormat::wxDataFormat( const GdkAtom atom )
+wxDataFormat::wxDataFormat( NativeFormat format )
{
- if (!g_textAtom) g_textAtom = gdk_atom_intern( "STRING", FALSE );
- 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;
- }
- }
+ PrepareFormats();
+ SetId( format );
}
-void wxDataFormat::SetType( wxDataType type )
+void wxDataFormat::SetType( wxDataFormatId type )
{
+ PrepareFormats();
m_type = type;
-
+
if (m_type == wxDF_TEXT)
- {
- m_id = _T("STRING");
- }
+ m_format = g_textAtom;
else
if (m_type == wxDF_BITMAP)
- {
- m_id = _T("BITMAP");
- }
+ m_format = g_pngAtom;
else
if (m_type == wxDF_FILENAME)
- {
- m_id = _T("file:ALL");
- }
+ m_format = g_fileAtom;
else
{
- wxFAIL_MSG( _T("invalid dataformat") );
+ wxFAIL_MSG( wxT("invalid dataformat") );
}
-
- m_hasAtom = FALSE;
}
-
-wxDataType wxDataFormat::GetType() const
+
+wxDataFormatId wxDataFormat::GetType() const
{
return m_type;
}
wxString wxDataFormat::GetId() const
{
- return m_id;
+ wxString ret( gdk_atom_name( m_format ) ); // this will convert from ascii to Unicode
+ return ret;
}
-void wxDataFormat::SetId( const char *id )
+void wxDataFormat::SetId( NativeFormat format )
{
- m_type = wxDF_PRIVATE;
- m_id = id;
- m_hasAtom = FALSE;
-}
+ PrepareFormats();
+ m_format = format;
-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;
-}
-
-//-------------------------------------------------------------------------
-// wxDataBroker
-//-------------------------------------------------------------------------
-
-IMPLEMENT_CLASS(wxDataBroker,wxObject)
-
-wxDataBroker::wxDataBroker()
-{
- m_dataObjects.DeleteContents(TRUE);
- m_preferred = 0;
+ 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 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();
-}
-
-wxDataFormat &wxDataBroker::GetPreferredFormat() const
-{
- wxNode *node = m_dataObjects.Nth( m_preferred );
-
- wxASSERT( node );
-
- wxDataObject* data_obj = (wxDataObject*)node->Data();
-
- return data_obj->GetFormat();
-}
-
-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
+void wxDataFormat::SetId( const wxChar *id )
{
- 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;
+ PrepareFormats();
+ m_type = wxDF_PRIVATE;
+ wxString tmp( id );
+ m_format = gdk_atom_intern( wxMBSTRINGCAST tmp.mbc_str(), FALSE ); // what is the string cast for?
}
-
-void wxDataBroker::WriteData( wxDataFormat& format, void *dest ) const
+
+void wxDataFormat::PrepareFormats()
{
- wxNode *node = m_dataObjects.First();
- while (node)
- {
- wxDataObject *dobj = (wxDataObject*)node->Data();
-
- if (dobj->GetFormat().GetAtom() == format.GetAtom())
- {
- dobj->WriteData( dest );
- }
-
- node = node->Next();
- }
+ // VZ: GNOME included in RedHat 6.1 uses the MIME types below and not the
+ // atoms STRING and file:ALL as the old code was, but normal X apps
+ // use STRING for text selection when transfering the data via
+ // clipboard, for example, so do use STRING for now (GNOME apps will
+ // probably support STRING as well for compatibility anyhow), but use
+ // text/uri-list for file dnd because compatibility is not important
+ // here (with whom?)
+ if (!g_textAtom)
+ g_textAtom = gdk_atom_intern( "STRING" /* "text/plain" */, FALSE );
+ if (!g_pngAtom)
+ g_pngAtom = gdk_atom_intern( "image/png", FALSE );
+ if (!g_fileAtom)
+ g_fileAtom = gdk_atom_intern( "text/uri-list", FALSE );
}
//-------------------------------------------------------------------------
// wxDataObject
//-------------------------------------------------------------------------
-IMPLEMENT_ABSTRACT_CLASS( wxDataObject, wxObject )
-
wxDataObject::wxDataObject()
{
}
-
-wxDataObject::~wxDataObject()
-{
-}
-wxDataFormat &wxDataObject::GetFormat()
+bool wxDataObject::IsSupportedFormat(const wxDataFormat& format, Direction dir) const
{
- return m_format;
-}
+ size_t nFormatCount = GetFormatCount(dir);
+ if ( nFormatCount == 1 )
+ {
+ return format == GetPreferredFormat();
+ }
+ else
+ {
+ wxDataFormat *formats = new wxDataFormat[nFormatCount];
+ GetAllFormats(formats,dir);
-wxDataType wxDataObject::GetFormatType() const
-{
- return m_format.GetType();
-}
+ size_t n;
+ for ( n = 0; n < nFormatCount; n++ )
+ {
+ if ( formats[n] == format )
+ break;
+ }
-wxString wxDataObject::GetFormatId() const
-{
- return m_format.GetId();
-}
+ delete [] formats;
-GdkAtom wxDataObject::GetFormatAtom() const
-{
- GdkAtom ret = ((wxDataObject*) this)->m_format.GetAtom();
- return ret;
-}
+ // found?
+ return n < nFormatCount;
+ }
+}
// ----------------------------------------------------------------------------
-// wxTextDataObject
+// wxFileDataObject
// ----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS( wxTextDataObject, wxDataObject )
-
-wxTextDataObject::wxTextDataObject()
+bool wxFileDataObject::GetDataHere(void *buf) const
{
- m_format.SetType( wxDF_TEXT );
-}
+ wxString filenames;
-wxTextDataObject::wxTextDataObject( const wxString& data )
-{
- m_format.SetType( wxDF_TEXT );
-
- m_data = data;
-}
+ for (size_t i = 0; i < m_filenames.GetCount(); i++)
+ {
+ filenames += m_filenames[i];
+ filenames += (wxChar) 0;
+ }
-void wxTextDataObject::SetText( const wxString& data )
-{
- m_data = data;
-}
+ memcpy( buf, filenames.mbc_str(), filenames.Len() + 1 );
-wxString wxTextDataObject::GetText() const
-{
- return m_data;
+ return TRUE;
}
-void wxTextDataObject::WriteData( void *dest ) const
+size_t wxFileDataObject::GetDataSize() const
{
- WriteString( m_data, dest );
-}
+ size_t res = 0;
-size_t wxTextDataObject::GetSize() const
-{
- return m_data.Len() + 1;
-}
+ for (size_t i = 0; i < m_filenames.GetCount(); i++)
+ {
+ res += m_filenames[i].Len();
+ res += 1;
+ }
-void wxTextDataObject::WriteString( const wxString &str, void *dest ) const
-{
- memcpy( dest, m_data.c_str(), GetSize() );
+ return res + 1;
}
-
-// ----------------------------------------------------------------------------
-// wxFileDataObject
-// ----------------------------------------------------------------------------
-
-IMPLEMENT_DYNAMIC_CLASS( wxFileDataObject, wxDataObject )
-wxFileDataObject::wxFileDataObject()
+bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *buf)
{
- m_format.SetType( wxDF_FILENAME );
-}
+ // VZ: old format
+#if 0
+ // filenames are stores as a string with #0 as deliminators
+ const char *filenames = (const char*) buf;
+ size_t pos = 0;
+ for(;;)
+ {
+ if (filenames[0] == 0)
+ break;
+ if (pos >= size)
+ break;
+ wxString file( filenames ); // this returns the first file
+ AddFile( file );
+ pos += file.Len()+1;
+ filenames += file.Len()+1;
+ }
+#else // 1
+ m_filenames.Empty();
+
+ // the text/uri-list format is a sequence of URIs (filenames prefixed by
+ // "file:" as far as I see) delimited by "\r\n" of total length size
+ // (I wonder what happens if the file has '\n' in its filename??)
+ wxString filename;
+ for ( const char *p = (const char *)buf; ; p++ )
+ {
+ // some broken programs (testdnd GTK+ sample!) omit the trailing
+ // "\r\n", so check for '\0' explicitly here instead of doing it in
+ // the loop statement to account for it
+ if ( (*p == '\r' && *(p+1) == '\n') || !*p )
+ {
+ size_t lenPrefix = 5; // strlen("file:")
+ if ( filename.Left(lenPrefix).MakeLower() == _T("file:") )
+ {
+ // sometimes the syntax is "file:filename", sometimes it's
+ // URL-like: "file://filename" - deal with both
+ if ( filename[lenPrefix] == _T('/') &&
+ filename[lenPrefix + 1] == _T('/') )
+ {
+ // skip the slashes
+ lenPrefix += 2;
+ }
+
+ AddFile(filename.c_str() + lenPrefix);
+ filename.Empty();
+ }
+ else
+ {
+ wxLogDebug(_T("Unsupported URI '%s' in wxFileDataObject"),
+ filename.c_str());
+ }
+
+ if ( !*p )
+ break;
+
+ // skip '\r'
+ p++;
+ }
+ else
+ {
+ filename += *p;
+ }
+ }
+#endif // 0/1
-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.c_str(), GetSize() );
+ return TRUE;
}
-
-size_t wxFileDataObject::GetSize() const
+
+void wxFileDataObject::AddFile( const wxString &filename )
{
- return m_files.Len() + 1;
+ m_filenames.Add( filename );
}
-
+
// ----------------------------------------------------------------------------
// wxBitmapDataObject
// ----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS( wxBitmapDataObject, wxDataObject )
-
wxBitmapDataObject::wxBitmapDataObject()
{
- m_format.SetType( wxDF_BITMAP );
+ Init();
}
wxBitmapDataObject::wxBitmapDataObject( const wxBitmap& bitmap )
+ : wxBitmapDataObjectBase(bitmap)
{
- m_format.SetType( wxDF_BITMAP );
-
- m_bitmap = bitmap;
-}
+ Init();
-void wxBitmapDataObject::SetBitmap( const wxBitmap &bitmap )
-{
- m_bitmap = bitmap;
+ DoConvertToPng();
}
-wxBitmap wxBitmapDataObject::GetBitmap() const
+wxBitmapDataObject::~wxBitmapDataObject()
{
- return m_bitmap;
+ Clear();
}
-void wxBitmapDataObject::WriteData( void *dest ) const
+void wxBitmapDataObject::SetBitmap( const wxBitmap &bitmap )
{
- WriteBitmap( m_bitmap, dest );
-}
+ ClearAll();
-size_t wxBitmapDataObject::GetSize() const
-{
- return 0;
+ wxBitmapDataObjectBase::SetBitmap(bitmap);
+
+ DoConvertToPng();
}
-void wxBitmapDataObject::WriteBitmap( const wxBitmap &bitmap, void *dest ) const
+bool wxBitmapDataObject::GetDataHere(void *buf) const
{
- memcpy( dest, m_bitmap.GetPixmap(), GetSize() );
-}
-
-// ----------------------------------------------------------------------------
-// wxPrivateDataObject
-// ----------------------------------------------------------------------------
+ if ( !m_pngSize )
+ {
+ wxFAIL_MSG( wxT("attempt to copy empty bitmap failed") );
-IMPLEMENT_DYNAMIC_CLASS( wxPrivateDataObject, wxDataObject )
-
-wxPrivateDataObject::wxPrivateDataObject()
-{
- m_id = "application/";
- m_id += wxTheApp->GetAppName();
-
- m_format.SetId( m_id );
-
- m_size = 0;
- m_data = (char*) NULL;
-}
-
-wxPrivateDataObject::~wxPrivateDataObject()
-{
- if (m_data) delete[] m_data;
-}
-
-void wxPrivateDataObject::SetId( const wxString& id )
-{
- m_id = id;
- m_format.SetId( m_id );
-}
-
-wxString wxPrivateDataObject::GetId() const
-{
- return m_id;
-}
+ return FALSE;
+ }
-void wxPrivateDataObject::SetData( const char *data, size_t size )
-{
- m_size = size;
-
- if (m_data) delete[] m_data;
-
- m_data = new char[size];
+ memcpy(buf, m_pngData, m_pngSize);
- memcpy( m_data, data, size );
+ return TRUE;
}
-char* wxPrivateDataObject::GetData() const
+bool wxBitmapDataObject::SetData(size_t size, const void *buf)
{
- return m_data;
-}
+ Clear();
-void wxPrivateDataObject::WriteData( void *dest ) const
-{
- WriteData( m_data, dest );
-}
+#if wxUSE_LIBPNG
+ m_pngSize = size;
+ m_pngData = malloc(m_pngSize);
-size_t wxPrivateDataObject::GetSize() const
-{
- return m_size;
+ memcpy( m_pngData, buf, m_pngSize );
+
+ wxMemoryInputStream mstream( (char*) m_pngData, m_pngSize );
+ wxImage image;
+ wxPNGHandler handler;
+ if ( !handler.LoadFile( &image, mstream ) )
+ {
+ return FALSE;
+ }
+
+ m_bitmap = image.ConvertToBitmap();
+
+ return m_bitmap.Ok();
+#else
+ return FALSE;
+#endif
}
-void wxPrivateDataObject::WriteData( const char *data, void *dest ) const
+void wxBitmapDataObject::DoConvertToPng()
{
- memcpy( dest, data, GetSize() );
+#if wxUSE_LIBPNG
+ 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 = malloc(m_pngSize);
+
+ wxMemoryOutputStream mstream( (char*) m_pngData, m_pngSize );
+ handler.SaveFile( &image, mstream );
+#endif
}
+
projects / wxWidgets.git / blobdiff