X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e1ee679c2e3f48bc4f2607e35033ed5505ed6665..cb719f2e29bd20effa3259d2d7dead9fd857442c:/src/gtk/dataobj.cpp?ds=sidebyside diff --git a/src/gtk/dataobj.cpp b/src/gtk/dataobj.cpp index dc7effd747..0602e78037 100644 --- a/src/gtk/dataobj.cpp +++ b/src/gtk/dataobj.cpp @@ -7,23 +7,28 @@ // Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "dataobj.h" #endif +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" + #include "wx/dataobj.h" #include "wx/app.h" #include "wx/debug.h" #include "wx/mstream.h" #include "wx/image.h" +#include "wx/log.h" -#include "gdk/gdk.h" +#include //------------------------------------------------------------------------- // global data //------------------------------------------------------------------------- GdkAtom g_textAtom = 0; +GdkAtom g_altTextAtom = 0; GdkAtom g_pngAtom = 0; GdkAtom g_fileAtom = 0; @@ -33,7 +38,14 @@ GdkAtom g_fileAtom = 0; 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_format = (GdkAtom) 0; } @@ -64,10 +76,19 @@ wxDataFormat::wxDataFormat( NativeFormat format ) void wxDataFormat::SetType( wxDataFormatId type ) { + PrepareFormats(); + m_type = type; - - if (m_type == wxDF_TEXT) + +#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_format = g_pngAtom; @@ -87,15 +108,23 @@ wxDataFormatId wxDataFormat::GetType() const wxString wxDataFormat::GetId() const { - wxString ret( gdk_atom_name( m_format ) ); // this will convert from ascii to Unicode + wxString ret = wxString::FromAscii( gdk_atom_name( m_format ) ); return ret; } void wxDataFormat::SetId( NativeFormat format ) { + 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) @@ -109,47 +138,62 @@ void wxDataFormat::SetId( NativeFormat format ) void wxDataFormat::SetId( const wxChar *id ) { + PrepareFormats(); m_type = wxDF_PRIVATE; wxString tmp( id ); - m_format = gdk_atom_intern( wxMBSTRINGCAST tmp.mbc_str(), FALSE ); // what is the string cast for? + m_format = gdk_atom_intern( (const char*) tmp.ToAscii(), FALSE ); } void wxDataFormat::PrepareFormats() { + // 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", FALSE ); +#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( "file:ALL", FALSE ); + g_fileAtom = gdk_atom_intern( "text/uri-list", FALSE ); } //------------------------------------------------------------------------- // wxDataObject //------------------------------------------------------------------------- -IMPLEMENT_ABSTRACT_CLASS( wxDataObject, wxObject ) - wxDataObject::wxDataObject() { } wxDataObject::~wxDataObject() { + // dtor is empty but needed for Darwin and AIX -- otherwise it doesn't link } -bool wxDataObject::IsSupportedFormat(const wxDataFormat& format) const +bool wxDataObject::IsSupportedFormat(const wxDataFormat& format, Direction dir) const { - size_t nFormatCount = GetFormatCount(); - if ( nFormatCount == 1 ) { + size_t nFormatCount = GetFormatCount(dir); + if ( nFormatCount == 1 ) + { return format == GetPreferredFormat(); } - else { + else + { wxDataFormat *formats = new wxDataFormat[nFormatCount]; - GetAllFormats(formats); + GetAllFormats(formats,dir); size_t n; - for ( n = 0; n < nFormatCount; n++ ) { + for ( n = 0; n < nFormatCount; n++ ) + { if ( formats[n] == format ) break; } @@ -161,13 +205,33 @@ bool wxDataObject::IsSupportedFormat(const wxDataFormat& format) const } } +// ---------------------------------------------------------------------------- +// wxTextDataObject +// ---------------------------------------------------------------------------- + +#if defined(__WXGTK20__) && wxUSE_UNICODE +void wxTextDataObject::GetAllFormats(wxDataFormat *formats, wxDataObjectBase::Direction dir) const +{ + *formats++ = GetPreferredFormat(); + *formats = g_altTextAtom; +} +#endif + // ---------------------------------------------------------------------------- // wxFileDataObject // ---------------------------------------------------------------------------- bool wxFileDataObject::GetDataHere(void *buf) const { - const wxString& filenames = GetFilenames(); + wxString filenames; + + for (size_t i = 0; i < m_filenames.GetCount(); i++) + { + filenames += wxT("file:"); + filenames += m_filenames[i]; + filenames += wxT("\r\n"); + } + memcpy( buf, filenames.mbc_str(), filenames.Len() + 1 ); return TRUE; @@ -175,16 +239,92 @@ bool wxFileDataObject::GetDataHere(void *buf) const size_t wxFileDataObject::GetDataSize() const { - return GetFilenames().Len() + 1; + size_t res = 0; + + for (size_t i = 0; i < m_filenames.GetCount(); i++) + { + // This is junk in UTF-8 + res += m_filenames[i].Len(); + res += 5 + 2; // "file:" (5) + "\r\n" (2) + } + + return res + 1; } -bool wxFileDataObject::SetData(const void *buf) +bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *buf) { - SetFilenames((const wxChar *)buf); + // 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 return TRUE; } +void wxFileDataObject::AddFile( const wxString &filename ) +{ + m_filenames.Add( filename ); +} + // ---------------------------------------------------------------------------- // wxBitmapDataObject // ---------------------------------------------------------------------------- @@ -234,85 +374,44 @@ bool wxBitmapDataObject::SetData(size_t size, const void *buf) { Clear(); + 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!") ); + m_pngSize = size; m_pngData = malloc(m_pngSize); - memcpy( m_pngData, buf, m_pngSize ); + memcpy(m_pngData, buf, m_pngSize); - wxMemoryInputStream mstream( (char*) m_pngData, m_pngSize ); + wxMemoryInputStream mstream((char*) m_pngData, m_pngSize); wxImage image; - wxPNGHandler handler; - if ( !handler.LoadFile( &image, mstream ) ) + if ( !image.LoadFile( mstream, wxBITMAP_TYPE_PNG ) ) { return FALSE; } - m_bitmap = image.ConvertToBitmap(); + m_bitmap = wxBitmap(image); + + return m_bitmap.Ok(); } void wxBitmapDataObject::DoConvertToPng() { - if (!m_bitmap.Ok()) + if ( !m_bitmap.Ok() ) return; - wxImage image( m_bitmap ); - wxPNGHandler handler; + wxCHECK_RET( wxImage::FindHandler(wxBITMAP_TYPE_PNG) != NULL, + wxT("You must call wxImage::AddHandler(new wxPNGHandler); to be able to use clipboard with bitmaps!") ); + + wxImage image = m_bitmap.ConvertToImage(); wxCountingOutputStream count; - handler.SaveFile( &image, count ); + image.SaveFile(count, wxBITMAP_TYPE_PNG); 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 ); -} - -// ---------------------------------------------------------------------------- -// wxPrivateDataObject -// ---------------------------------------------------------------------------- - -IMPLEMENT_CLASS( wxPrivateDataObject, wxDataObject ) - -void wxPrivateDataObject::Free() -{ - if ( m_data ) - free(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 void *data, size_t size ) -{ - Free(); - - m_size = size; - m_data = malloc(size); - - memcpy( m_data, data, size ); + wxMemoryOutputStream mstream((char*) m_pngData, m_pngSize); + image.SaveFile(mstream, wxBITMAP_TYPE_PNG); } -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() ); -}