///////////////////////////////////////////////////////////////////////////////
-// Name: dataobj.cpp
+// Name: src/gtk/dataobj.cpp
// Purpose: wxDataObject class
// Author: Robert Roebling
// Id: $Id$
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
- #pragma implementation "dataobj.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if wxUSE_DATAOBJ
#include "wx/dataobj.h"
-#include "wx/app.h"
-#include "wx/debug.h"
-#include "wx/mstream.h"
-#include "wx/image.h"
-#include "gdk/gdk.h"
+#ifndef WX_PRECOMP
+ #include "wx/log.h"
+ #include "wx/app.h"
+ #include "wx/image.h"
+#endif
+
+#include "wx/mstream.h"
+#include "wx/uri.h"
+#include "wx/gtk/private.h"
//-------------------------------------------------------------------------
// global data
//-------------------------------------------------------------------------
GdkAtom g_textAtom = 0;
+GdkAtom g_altTextAtom = 0;
GdkAtom g_pngAtom = 0;
+GdkAtom g_fileAtom = 0;
//-------------------------------------------------------------------------
// wxDataFormat
//-------------------------------------------------------------------------
-IMPLEMENT_CLASS(wxDataFormat, wxObject)
-
wxDataFormat::wxDataFormat()
{
- PrepareFormats();
+ // 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( wxDataFormatId type )
SetType( type );
}
-wxDataFormat::wxDataFormat( const wxChar *id )
-{
- PrepareFormats();
- SetId( id );
-}
-
-wxDataFormat::wxDataFormat( const wxString &id )
+void wxDataFormat::InitFromString( const wxString &id )
{
PrepareFormats();
SetId( id );
}
-wxDataFormat::wxDataFormat( const wxDataFormat &format )
+wxDataFormat::wxDataFormat( NativeFormat format )
{
PrepareFormats();
- m_type = format.GetType();
- m_id = format.GetId();
- m_hasAtom = TRUE;
- m_atom = ((wxDataFormat &)format).GetAtom(); // const_cast
+ SetId( format );
}
-wxDataFormat::wxDataFormat( const GdkAtom atom )
+void wxDataFormat::SetType( wxDataFormatId type )
{
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");
- }
+#if wxUSE_UNICODE
+ if (m_type == wxDF_UNICODETEXT)
+ m_format = g_textAtom;
+ else if (m_type == wxDF_TEXT)
+ m_format = g_altTextAtom;
+#else
+ if (m_type == wxDF_TEXT || m_type == wxDF_UNICODETEXT)
+ m_format = g_textAtom;
+#endif
else
if (m_type == wxDF_BITMAP)
- {
- m_id = T("image/png");
- }
+ 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;
}
wxDataFormatId wxDataFormat::GetType() const
wxString wxDataFormat::GetId() const
{
- return m_id;
+ wxGtkString atom_name(gdk_atom_name(m_format));
+ return wxString::FromAscii(atom_name);
}
-void wxDataFormat::SetId( const wxChar *id )
+void wxDataFormat::SetId( NativeFormat format )
{
- m_type = wxDF_PRIVATE;
- m_id = id;
- m_hasAtom = FALSE;
+ PrepareFormats();
+ m_format = format;
+
+ if (m_format == g_textAtom)
+#if wxUSE_UNICODE
+ m_type = wxDF_UNICODETEXT;
+#else
+ m_type = wxDF_TEXT;
+#endif
+ else
+ if (m_format == g_altTextAtom)
+ 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;
}
-GdkAtom wxDataFormat::GetAtom()
+void wxDataFormat::SetId( const wxString& id )
{
- 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( wxMBSTRINGCAST 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;
+ PrepareFormats();
+ m_type = wxDF_PRIVATE;
+ m_format = gdk_atom_intern( id.ToAscii(), FALSE );
}
void wxDataFormat::PrepareFormats()
{
- if (!g_textAtom) g_textAtom = gdk_atom_intern( "STRING", FALSE );
- if (!g_pngAtom) g_pngAtom = gdk_atom_intern( "image/png", FALSE );
+ // 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)
+#if wxUSE_UNICODE
+ g_textAtom = gdk_atom_intern( "UTF8_STRING", FALSE );
+ g_altTextAtom = gdk_atom_intern( "STRING", FALSE );
+#else
+ g_textAtom = gdk_atom_intern( "STRING" /* "text/plain" */, FALSE );
+#endif
+ if (!g_pngAtom)
+ g_pngAtom = gdk_atom_intern( "image/png", FALSE );
+ if (!g_fileAtom)
+ g_fileAtom = gdk_atom_intern( "text/uri-list", FALSE );
}
//-------------------------------------------------------------------------
-// wxDataBroker
+// wxDataObject
//-------------------------------------------------------------------------
-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
+wxDataObject::wxDataObject()
{
- 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
+wxDataObject::~wxDataObject()
{
- wxNode *node = m_dataObjects.Nth( nth );
-
- wxASSERT( node );
-
- wxDataObject* data_obj = (wxDataObject*)node->Data();
-
- return data_obj->GetFormat();
+ // dtor is empty but needed for Darwin and AIX -- otherwise it doesn't link
}
-bool wxDataBroker::IsSupportedFormat( wxDataFormat &format ) const
+bool wxDataObject::IsSupportedFormat(const wxDataFormat& format, Direction dir) const
{
- wxNode *node = m_dataObjects.First();
- while (node)
+ size_t nFormatCount = GetFormatCount(dir);
+ if ( nFormatCount == 1 )
{
- wxDataObject *dobj = (wxDataObject*)node->Data();
-
- if (dobj->GetFormat().GetAtom() == format.GetAtom())
- {
- return TRUE;
- }
-
- node = node->Next();
+ return format == GetPreferredFormat();
}
-
- return FALSE;
-}
-
-size_t wxDataBroker::GetSize( wxDataFormat& format ) const
-{
- wxNode *node = m_dataObjects.First();
- while (node)
+ else
{
- wxDataObject *dobj = (wxDataObject*)node->Data();
-
- if (dobj->GetFormat().GetAtom() == format.GetAtom())
- {
- return dobj->GetSize();
- }
-
- node = node->Next();
- }
-
- return 0;
-}
+ wxDataFormat *formats = new wxDataFormat[nFormatCount];
+ GetAllFormats(formats,dir);
-void wxDataBroker::WriteData( wxDataFormat& format, void *dest ) const
-{
- wxNode *node = m_dataObjects.First();
- while (node)
- {
- wxDataObject *dobj = (wxDataObject*)node->Data();
+ size_t n;
+ for ( n = 0; n < nFormatCount; n++ )
+ {
+ if ( formats[n] == format )
+ break;
+ }
- if (dobj->GetFormat().GetAtom() == format.GetAtom())
- {
- dobj->WriteData( dest );
- }
+ delete [] formats;
- node = node->Next();
+ // found?
+ return n < nFormatCount;
}
}
-//-------------------------------------------------------------------------
-// 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()
+#if defined(__WXGTK20__) && wxUSE_UNICODE
+void wxTextDataObject::GetAllFormats(wxDataFormat *formats, wxDataObjectBase::Direction dir) const
{
- m_format.SetType( wxDF_TEXT );
+ *formats++ = GetPreferredFormat();
+ *formats = g_altTextAtom;
}
+#endif
-wxTextDataObject::wxTextDataObject( const wxString& data )
-{
- m_format.SetType( wxDF_TEXT );
-
- m_data = data;
-}
+// ----------------------------------------------------------------------------
+// wxFileDataObject
+// ----------------------------------------------------------------------------
-void wxTextDataObject::SetText( const wxString& data )
+bool wxFileDataObject::GetDataHere(void *buf) const
{
- m_data = data;
-}
+ wxString filenames;
-wxString wxTextDataObject::GetText() const
-{
- return m_data;
-}
+ for (size_t i = 0; i < m_filenames.GetCount(); i++)
+ {
+ filenames += wxT("file:");
+ filenames += m_filenames[i];
+ filenames += wxT("\r\n");
+ }
-void wxTextDataObject::WriteData( void *dest ) const
-{
- WriteString( m_data, dest );
-}
+ memcpy( buf, filenames.mbc_str(), filenames.length() + 1 );
-size_t wxTextDataObject::GetSize() const
-{
- return m_data.Len() + 1;
+ return true;
}
-void wxTextDataObject::WriteString( const wxString &str, void *dest ) const
+size_t wxFileDataObject::GetDataSize() const
{
- memcpy( dest, str.mb_str(), str.Len()+1 );
-}
-
-// ----------------------------------------------------------------------------
-// wxFileDataObject
-// ----------------------------------------------------------------------------
+ size_t res = 0;
-IMPLEMENT_DYNAMIC_CLASS( wxFileDataObject, wxDataObject )
+ for (size_t i = 0; i < m_filenames.GetCount(); i++)
+ {
+ // This is junk in UTF-8
+ res += m_filenames[i].length();
+ res += 5 + 2; // "file:" (5) + "\r\n" (2)
+ }
-wxFileDataObject::wxFileDataObject()
-{
- m_format.SetType( wxDF_FILENAME );
+ return res + 1;
}
-void wxFileDataObject::AddFile( const wxString &file )
+bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *buf)
{
- m_files += file;
- m_files += (wxChar)0;
-}
+ m_filenames.Empty();
-wxString wxFileDataObject::GetFiles() const
-{
- return m_files;
-}
+ // we get data in the text/uri-list format, i.e. as a sequence of URIs
+ // (filenames prefixed by "file:") delimited by "\r\n"
+ 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;
+ }
+
+ // It would probably be nicer to use a GTK or Glib
+ // function to unescape the 8-bit strings pointed to
+ // by buf, but this does the same in wx code.
+ wxString filename_unicode = wxURI::Unescape(filename.c_str() + lenPrefix);
+ wxCharBuffer filename_8bit = filename_unicode.mb_str(wxConvISO8859_1);
+ AddFile(wxString(filename_8bit, *wxConvFileName));
+ filename.Empty();
+ }
+ else if ( !filename.empty() )
+ {
+ wxLogDebug(_T("Unsupported URI \"%s\" in wxFileDataObject"),
+ filename.c_str());
+ }
+
+ if ( !*p )
+ break;
+
+ // skip '\r'
+ p++;
+ }
+ else
+ {
+ // The string is in ISO-8859-1 according to XDND spec
+ filename += *p;
+ }
+ }
-void wxFileDataObject::WriteData( void *dest ) const
-{
- memcpy( dest, m_files.mbc_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 );
- m_pngData = (char*)NULL;
- m_pngSize = 0;
+ Init();
}
wxBitmapDataObject::wxBitmapDataObject( const wxBitmap& bitmap )
+ : wxBitmapDataObjectBase(bitmap)
{
- m_format.SetType( wxDF_BITMAP );
- m_pngData = (char*)NULL;
- m_pngSize = 0;
- m_bitmap = bitmap;
+ Init();
+
DoConvertToPng();
}
wxBitmapDataObject::~wxBitmapDataObject()
{
- if (m_pngData) delete[] m_pngData;
+ Clear();
}
void wxBitmapDataObject::SetBitmap( const wxBitmap &bitmap )
{
- m_bitmap = bitmap;
- DoConvertToPng();
-}
+ ClearAll();
-wxBitmap wxBitmapDataObject::GetBitmap() const
-{
- return m_bitmap;
-}
+ wxBitmapDataObjectBase::SetBitmap(bitmap);
-void wxBitmapDataObject::WriteData( void *dest ) const
-{
- WriteBitmap( m_bitmap, dest );
+ DoConvertToPng();
}
-size_t wxBitmapDataObject::GetSize() const
+bool wxBitmapDataObject::GetDataHere(void *buf) const
{
- return m_pngSize;
-}
+ if ( !m_pngSize )
+ {
+ wxFAIL_MSG( wxT("attempt to copy empty bitmap failed") );
-void wxBitmapDataObject::WriteBitmap( const wxBitmap &WXUNUSED(bitmap), void *dest ) const
-{
-// if (m_bitmap == bitmap)
- memcpy( dest, m_pngData, m_pngSize );
-}
+ return false;
+ }
-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();
+ memcpy(buf, m_pngData, m_pngSize);
+
+ return true;
}
-void wxBitmapDataObject::DoConvertToPng()
+bool wxBitmapDataObject::SetData(size_t size, const void *buf)
{
- 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 );
-}
+ Clear();
-// ----------------------------------------------------------------------------
-// wxPrivateDataObject
-// ----------------------------------------------------------------------------
+ wxCHECK_MSG( wxImage::FindHandler(wxBITMAP_TYPE_PNG) != NULL,
+ false, wxT("You must call wxImage::AddHandler(new wxPNGHandler); to be able to use clipboard with bitmaps!") );
-IMPLEMENT_DYNAMIC_CLASS( wxPrivateDataObject, wxDataObject )
+ m_pngSize = size;
+ m_pngData = malloc(m_pngSize);
-void wxPrivateDataObject::Free()
-{
- if ( m_data )
- free(m_data);
-}
+ memcpy(m_pngData, buf, m_pngSize);
-wxPrivateDataObject::wxPrivateDataObject()
-{
- wxString id = T("application/");
- id += wxTheApp->GetAppName();
+ wxMemoryInputStream mstream((char*) m_pngData, m_pngSize);
+ wxImage image;
+ if ( !image.LoadFile( mstream, wxBITMAP_TYPE_PNG ) )
+ {
+ return false;
+ }
- m_format.SetId( id );
+ m_bitmap = wxBitmap(image);
- m_size = 0;
- m_data = (void *)NULL;
+ return m_bitmap.Ok();
}
-void wxPrivateDataObject::SetData( const void *data, size_t size )
+void wxBitmapDataObject::DoConvertToPng()
{
- Free();
+ if ( !m_bitmap.Ok() )
+ return;
- m_size = size;
- m_data = malloc(size);
+ wxCHECK_RET( wxImage::FindHandler(wxBITMAP_TYPE_PNG) != NULL,
+ wxT("You must call wxImage::AddHandler(new wxPNGHandler); to be able to use clipboard with bitmaps!") );
- memcpy( m_data, data, size );
-}
+ wxImage image = m_bitmap.ConvertToImage();
-void wxPrivateDataObject::WriteData( void *dest ) const
-{
- WriteData( m_data, dest );
-}
+ wxCountingOutputStream count;
+ image.SaveFile(count, wxBITMAP_TYPE_PNG);
-size_t wxPrivateDataObject::GetSize() const
-{
- return m_size;
-}
+ m_pngSize = count.GetSize() + 100; // sometimes the size seems to vary ???
+ m_pngData = malloc(m_pngSize);
-void wxPrivateDataObject::WriteData( const void *data, void *dest ) const
-{
- memcpy( dest, data, GetSize() );
+ wxMemoryOutputStream mstream((char*) m_pngData, m_pngSize);
+ image.SaveFile(mstream, wxBITMAP_TYPE_PNG);
}
+#endif // wxUSE_DATAOBJ
projects / wxWidgets.git / blobdiff