X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e1ee679c2e3f48bc4f2607e35033ed5505ed6665..059d234d4176165d975048eaa5436ef40af7d037:/src/gtk/dataobj.cpp diff --git a/src/gtk/dataobj.cpp b/src/gtk/dataobj.cpp index dc7effd747..dbe0952d50 100644 --- a/src/gtk/dataobj.cpp +++ b/src/gtk/dataobj.cpp @@ -1,5 +1,5 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: dataobj.cpp +// Name: src/gtk/dataobj.cpp // Purpose: wxDataObject class // Author: Robert Roebling // Id: $Id$ @@ -7,23 +7,30 @@ // 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" + +#ifndef WX_PRECOMP + #include "wx/log.h" + #include "wx/app.h" + #include "wx/image.h" +#endif + #include "wx/mstream.h" -#include "wx/image.h" +#include "wx/uri.h" -#include "gdk/gdk.h" +#include "wx/gtk/private.h" //------------------------------------------------------------------------- // global data //------------------------------------------------------------------------- GdkAtom g_textAtom = 0; +GdkAtom g_altTextAtom = 0; GdkAtom g_pngAtom = 0; GdkAtom g_fileAtom = 0; @@ -33,7 +40,14 @@ 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; } @@ -44,13 +58,7 @@ 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 ); @@ -64,10 +72,22 @@ wxDataFormat::wxDataFormat( NativeFormat format ) void wxDataFormat::SetType( wxDataFormatId type ) { + PrepareFormats(); + m_type = type; +#if wxUSE_UNICODE + if (m_type == wxDF_UNICODETEXT) + m_format = g_textAtom; + else if (m_type == wxDF_TEXT) + m_format = g_altTextAtom; +#else // !wxUSE_UNICODE + // notice that we don't map wxDF_UNICODETEXT to g_textAtom here, this + // would lead the code elsewhere to treat data objects with this format as + // containing UTF-8 data which is not true if (m_type == wxDF_TEXT) m_format = g_textAtom; +#endif // wxUSE_UNICODE/!wxUSE_UNICODE else if (m_type == wxDF_BITMAP) m_format = g_pngAtom; @@ -87,15 +107,23 @@ wxDataFormatId wxDataFormat::GetType() const wxString wxDataFormat::GetId() const { - wxString ret( gdk_atom_name( m_format ) ); // this will convert from ascii to Unicode - return ret; + wxGtkString atom_name(gdk_atom_name(m_format)); + return wxString::FromAscii(atom_name); } 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) @@ -107,49 +135,65 @@ void wxDataFormat::SetId( NativeFormat format ) m_type = wxDF_PRIVATE; } -void wxDataFormat::SetId( const wxChar *id ) +void wxDataFormat::SetId( const wxString& 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( id.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 transferring 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; } @@ -161,28 +205,117 @@ bool wxDataObject::IsSupportedFormat(const wxDataFormat& format) const } } +// ---------------------------------------------------------------------------- +// wxTextDataObject +// ---------------------------------------------------------------------------- + +#if wxUSE_UNICODE + +void +wxTextDataObject::GetAllFormats(wxDataFormat *formats, + wxDataObjectBase::Direction WXUNUSED(dir)) const +{ + *formats++ = GetPreferredFormat(); + *formats = g_altTextAtom; +} + +#endif // wxUSE_UNICODE + // ---------------------------------------------------------------------------- // wxFileDataObject // ---------------------------------------------------------------------------- bool wxFileDataObject::GetDataHere(void *buf) const { - const wxString& filenames = GetFilenames(); - memcpy( buf, filenames.mbc_str(), filenames.Len() + 1 ); + wxString filenames; - return TRUE; + 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.length() + 1 ); + + return true; } 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].length(); + 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); + // we get data in the text/uri-list format, i.e. as a sequence of URIs + // (filenames prefixed by "file:") delimited by "\r\n". size includes + // the trailing zero (in theory, not for Nautilus in early GNOME + // versions). + + m_filenames.Empty(); + + const gchar *nexttemp = (const gchar*) buf; + for ( ; ; ) + { + int len = 0; + const gchar *temp = nexttemp; + for (;;) + { + if (temp[len] == 0) + { + if (len > 0) + { + // if an app omits '\r''\n' + nexttemp = temp+len; + break; + } + + return true; + } + if (temp[len] == '\r') + { + if (temp[len+1] == '\n') + nexttemp = temp+len+2; + else + nexttemp = temp+len+1; + break; + } + len++; + } + + if (len == 0) + break; + + // required to give it a trailing zero + gchar *uri = g_strndup( temp, len ); + + gchar *fn = g_filename_from_uri( uri, NULL, NULL ); + + g_free( uri ); + + if (fn) + { + AddFile( wxConvFileName->cMB2WX( fn ) ); + g_free( fn ); + } + } - return TRUE; + return true; +} + +void wxFileDataObject::AddFile( const wxString &filename ) +{ + m_filenames.Add( filename ); } // ---------------------------------------------------------------------------- @@ -222,97 +355,105 @@ bool wxBitmapDataObject::GetDataHere(void *buf) const { wxFAIL_MSG( wxT("attempt to copy empty bitmap failed") ); - return FALSE; + return false; } memcpy(buf, m_pngData, m_pngSize); - return TRUE; + return true; } 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; + 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 ); + wxMemoryOutputStream mstream((char*) m_pngData, m_pngSize); + image.SaveFile(mstream, wxBITMAP_TYPE_PNG); } // ---------------------------------------------------------------------------- -// wxPrivateDataObject +// wxURLDataObject // ---------------------------------------------------------------------------- -IMPLEMENT_CLASS( wxPrivateDataObject, wxDataObject ) - -void wxPrivateDataObject::Free() +wxURLDataObject::wxURLDataObject(const wxString& url) : + wxDataObjectSimple( wxDataFormat( gdk_atom_intern("text/x-moz-url",FALSE) ) ) { - if ( m_data ) - free(m_data); + m_url = url; } -wxPrivateDataObject::wxPrivateDataObject() +size_t wxURLDataObject::GetDataSize() const { - wxString id = wxT("application/"); - id += wxTheApp->GetAppName(); + if (m_url.empty()) + return 0; - m_format.SetId( id ); - - m_size = 0; - m_data = (void *)NULL; + return 2*m_url.Len()+2; } -void wxPrivateDataObject::SetData( const void *data, size_t size ) +bool wxURLDataObject::GetDataHere(void *buf) const { - Free(); + if (m_url.empty()) + return false; - m_size = size; - m_data = malloc(size); + wxCSConv conv( "UCS2" ); + conv.FromWChar( (char*) buf, 2*m_url.Len()+2, m_url.wc_str() ); - memcpy( m_data, data, size ); + return true; } -void wxPrivateDataObject::WriteData( void *dest ) const + // copy data from buffer to our data +bool wxURLDataObject::SetData(size_t len, const void *buf) { - WriteData( m_data, dest ); -} + if (len == 0) + { + m_url = wxEmptyString; + return false; + } -size_t wxPrivateDataObject::GetSize() const -{ - return m_size; -} + wxCSConv conv( "UCS2" ); + wxWCharBuffer res = conv.cMB2WC( (const char*) buf ); + m_url = res; + int pos = m_url.Find( '\n' ); + if (pos != wxNOT_FOUND) + m_url.Remove( pos, m_url.Len() - pos ); -void wxPrivateDataObject::WriteData( const void *data, void *dest ) const -{ - memcpy( dest, data, GetSize() ); + return true; } + +#endif // wxUSE_DATAOBJ