X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/259c43f679ca655362b5a439e11c87fc0666d663..64ea838d8f4d1853b7d850db93ee565e901d099a:/src/common/dobjcmn.cpp diff --git a/src/common/dobjcmn.cpp b/src/common/dobjcmn.cpp index 99e3947c72..7925041420 100644 --- a/src/common/dobjcmn.cpp +++ b/src/common/dobjcmn.cpp @@ -1,5 +1,5 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: common/dobjcmn.cpp +// Name: src/common/dobjcmn.cpp // Purpose: implementation of data object methods common to all platforms // Author: Vadim Zeitlin, Robert Roebling // Modified by: @@ -9,14 +9,7 @@ // Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// -// ============================================================================ -// declarations -// ============================================================================ - -// ---------------------------------------------------------------------------- -// headers -// ---------------------------------------------------------------------------- - +// For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ @@ -25,12 +18,13 @@ #if wxUSE_DATAOBJ +#include "wx/dataobj.h" + #ifndef WX_PRECOMP #include "wx/app.h" - #include "wx/debug.h" -#endif // WX_PRECOMP +#endif -#include "wx/dataobj.h" +#include "wx/textbuf.h" // ---------------------------------------------------------------------------- // lists @@ -62,15 +56,15 @@ wxDataObjectBase::~wxDataObjectBase() bool wxDataObjectBase::IsSupported(const wxDataFormat& format, Direction dir) const { - size_t nFormatCount = GetFormatCount(dir); + size_t nFormatCount = GetFormatCount( dir ); if ( nFormatCount == 1 ) { - return format == GetPreferredFormat(dir); + return format == GetPreferredFormat( dir ); } else { wxDataFormat *formats = new wxDataFormat[nFormatCount]; - GetAllFormats(formats, dir); + GetAllFormats( formats, dir ); size_t n; for ( n = 0; n < nFormatCount; n++ ) @@ -93,30 +87,28 @@ bool wxDataObjectBase::IsSupported(const wxDataFormat& format, wxDataObjectComposite::wxDataObjectComposite() { m_preferred = 0; + m_receivedFormat = wxFormatInvalid; } wxDataObjectComposite::~wxDataObjectComposite() { - WX_CLEAR_LIST(wxSimpleDataObjectList, m_dataObjects); + WX_CLEAR_LIST( wxSimpleDataObjectList, m_dataObjects ); } wxDataObjectSimple * -wxDataObjectComposite::GetObject(const wxDataFormat& format) const +wxDataObjectComposite::GetObject(const wxDataFormat& format, wxDataObjectBase::Direction dir) const { wxSimpleDataObjectList::compatibility_iterator node = m_dataObjects.GetFirst(); + while ( node ) { wxDataObjectSimple *dataObj = node->GetData(); - if ( dataObj->GetFormat() == format ) - { - return dataObj; - } - + if (dataObj->IsSupported(format,dir)) + return dataObj; node = node->GetNext(); } - - return (wxDataObjectSimple *)NULL; + return NULL; } void wxDataObjectComposite::Add(wxDataObjectSimple *dataObject, bool preferred) @@ -127,6 +119,11 @@ void wxDataObjectComposite::Add(wxDataObjectSimple *dataObject, bool preferred) m_dataObjects.Append( dataObject ); } +wxDataFormat wxDataObjectComposite::GetReceivedFormat() const +{ + return m_receivedFormat; +} + wxDataFormat wxDataObjectComposite::GetPreferredFormat(Direction WXUNUSED(dir)) const { @@ -168,7 +165,7 @@ const void* wxDataObjectComposite::GetSizeFromBuffer( const void* buffer, void* wxDataObjectComposite::SetSizeInBuffer( void* buffer, size_t size, const wxDataFormat& format ) { - wxDataObjectSimple *dataObj = GetObject(format); + wxDataObjectSimple *dataObj = GetObject( format ); wxCHECK_MSG( dataObj, NULL, wxT("unsupported format in wxDataObjectComposite")); @@ -178,21 +175,33 @@ void* wxDataObjectComposite::SetSizeInBuffer( void* buffer, size_t size, #endif -size_t wxDataObjectComposite::GetFormatCount(Direction WXUNUSED(dir)) const +size_t wxDataObjectComposite::GetFormatCount(Direction dir) const { - // TODO what about the Get/Set only formats? - return m_dataObjects.GetCount(); + size_t n = 0; + + // NOTE: some wxDataObjectSimple objects may return a number greater than 1 + // from GetFormatCount(): this is the case of e.g. wxTextDataObject + // under wxMac and wxGTK + wxSimpleDataObjectList::compatibility_iterator node; + for ( node = m_dataObjects.GetFirst(); node; node = node->GetNext() ) + n += node->GetData()->GetFormatCount(dir); + + return n; } void wxDataObjectComposite::GetAllFormats(wxDataFormat *formats, - Direction WXUNUSED(dir)) const + Direction dir) const { - size_t n = 0; + size_t index(0); wxSimpleDataObjectList::compatibility_iterator node; + for ( node = m_dataObjects.GetFirst(); node; node = node->GetNext() ) { - // TODO if ( !outputOnlyToo ) && this one counts ... - formats[n++] = node->GetData()->GetFormat(); + // NOTE: some wxDataObjectSimple objects may return more than 1 format + // from GetAllFormats(): this is the case of e.g. wxTextDataObject + // under wxMac and wxGTK + node->GetData()->GetAllFormats(formats+index, dir); + index += node->GetData()->GetFormatCount(dir); } } @@ -209,31 +218,43 @@ size_t wxDataObjectComposite::GetDataSize(const wxDataFormat& format) const bool wxDataObjectComposite::GetDataHere(const wxDataFormat& format, void *buf) const { - wxDataObjectSimple *dataObj = GetObject(format); + wxDataObjectSimple *dataObj = GetObject( format ); wxCHECK_MSG( dataObj, false, wxT("unsupported format in wxDataObjectComposite")); - return dataObj->GetDataHere(buf); + return dataObj->GetDataHere( buf ); } bool wxDataObjectComposite::SetData(const wxDataFormat& format, size_t len, const void *buf) { - wxDataObjectSimple *dataObj = GetObject(format); + wxDataObjectSimple *dataObj = GetObject( format ); wxCHECK_MSG( dataObj, false, wxT("unsupported format in wxDataObjectComposite")); - return dataObj->SetData(len, buf); + m_receivedFormat = format; + + // Notice that we must pass "format" here as wxTextDataObject, that we can + // have as one of our "simple" sub-objects actually is not that simple and + // can support multiple formats (ASCII/UTF-8/UTF-16/...) and so needs to + // know which one it is given. + return dataObj->SetData( format, len, buf ); } // ---------------------------------------------------------------------------- // wxTextDataObject // ---------------------------------------------------------------------------- -#if defined(__WXGTK20__) && wxUSE_UNICODE +#ifdef wxNEEDS_UTF8_FOR_TEXT_DATAOBJ + +// FIXME-UTF8: we should be able to merge wchar_t and UTF-8 versions once we +// have a way to get UTF-8 string (and its length) in both builds +// without loss of efficiency (i.e. extra buffer copy/strlen call) + +#if wxUSE_UNICODE_WCHAR static inline wxMBConv& GetConv(const wxDataFormat& format) { @@ -244,16 +265,21 @@ static inline wxMBConv& GetConv(const wxDataFormat& format) size_t wxTextDataObject::GetDataSize(const wxDataFormat& format) const { wxCharBuffer buffer = GetConv(format).cWX2MB( GetText().c_str() ); - return buffer ? strlen(buffer) + 1 : 0; + + return buffer ? strlen( buffer ) : 0; } bool wxTextDataObject::GetDataHere(const wxDataFormat& format, void *buf) const { + if ( !buf ) + return false; + wxCharBuffer buffer = GetConv(format).cWX2MB( GetText().c_str() ); if ( !buffer ) return false; - strcpy( (char*) buf, buffer ); + memcpy( (char*) buf, buffer, GetDataSize(format) ); + // strcpy( (char*) buf, buffer ); return true; } @@ -261,126 +287,269 @@ bool wxTextDataObject::GetDataHere(const wxDataFormat& format, void *buf) const bool wxTextDataObject::SetData(const wxDataFormat& format, size_t WXUNUSED(len), const void *buf) { - wxWCharBuffer buffer = GetConv(format).cMB2WX((const char *)buf); - if ( !buffer ) + if ( buf == NULL ) return false; - SetText(buffer); + wxWCharBuffer buffer = GetConv(format).cMB2WX( (const char*)buf ); + + SetText( buffer ); return true; } -#elif wxUSE_UNICODE && defined(__WXMAC__) +#else // wxUSE_UNICODE_UTF8 -static wxMBConvUTF16 sUTF16Converter ; +size_t wxTextDataObject::GetDataSize(const wxDataFormat& format) const +{ + const wxString& text = GetText(); + if ( format == wxDF_UNICODETEXT || wxLocaleIsUtf8 ) + { + return text.utf8_length(); + } + else // wxDF_TEXT + { + const wxCharBuffer buf(wxConvLocal.cWC2MB(text.wc_str())); + return buf ? strlen(buf) : 0; + } +} -static inline wxMBConv& GetConv(const wxDataFormat& format) +bool wxTextDataObject::GetDataHere(const wxDataFormat& format, void *buf) const { - return format == wxDF_UNICODETEXT ? sUTF16Converter : (wxMBConv&) wxConvLocal; + if ( !buf ) + return false; + + const wxString& text = GetText(); + if ( format == wxDF_UNICODETEXT || wxLocaleIsUtf8 ) + { + memcpy(buf, text.utf8_str(), text.utf8_length()); + } + else // wxDF_TEXT + { + const wxCharBuffer bufLocal(wxConvLocal.cWC2MB(text.wc_str())); + if ( !bufLocal ) + return false; + + memcpy(buf, bufLocal, strlen(bufLocal)); + } + + return true; } +bool wxTextDataObject::SetData(const wxDataFormat& format, + size_t len, const void *buf_) +{ + const char * const buf = static_cast(buf_); + + if ( buf == NULL ) + return false; + + if ( format == wxDF_UNICODETEXT || wxLocaleIsUtf8 ) + { + // normally the data is in UTF-8 so we could use FromUTF8Unchecked() + // but it's not absolutely clear what GTK+ does if the clipboard data + // is not in UTF-8 so do an extra check for tranquility, it shouldn't + // matter much if we lose a bit of performance when pasting from + // clipboard + SetText(wxString::FromUTF8(buf, len)); + } + else // wxDF_TEXT, convert from current (non-UTF8) locale + { + SetText(wxConvLocal.cMB2WC(buf, len, NULL)); + } + + return true; +} + +#endif // wxUSE_UNICODE_WCHAR/wxUSE_UNICODE_UTF8 + +#elif defined(wxNEEDS_UTF16_FOR_TEXT_DATAOBJ) + +namespace +{ + +inline wxMBConv& GetConv(const wxDataFormat& format) +{ + static wxMBConvUTF16 s_UTF16Converter; + + return format == wxDF_UNICODETEXT ? static_cast(s_UTF16Converter) + : static_cast(wxConvLocal); +} + +} // anonymous namespace + size_t wxTextDataObject::GetDataSize(const wxDataFormat& format) const { - size_t len = GetConv(format).WC2MB( NULL , GetText().c_str() , 0 ) - + ( format == wxDF_UNICODETEXT ? 2 : 1 ) ; - return len ; + return GetConv(format).WC2MB(NULL, GetText().wc_str(), 0); } bool wxTextDataObject::GetDataHere(const wxDataFormat& format, void *buf) const { - wxCharBuffer buffer = GetConv(format).cWX2MB( GetText().c_str() ); - if ( !buffer ) + if ( buf == NULL ) return false; - size_t len = GetConv(format).WC2MB( NULL , GetText().c_str() , 0 ) - + ( format == wxDF_UNICODETEXT ? 2 : 1 ) ; + wxCharBuffer buffer(GetConv(format).cWX2MB(GetText().c_str())); - memcpy( (char*) buf, (const char*) buffer , len ); // trailing (uni)char 0 + memcpy(buf, buffer.data(), buffer.length()); return true; } bool wxTextDataObject::SetData(const wxDataFormat& format, - size_t WXUNUSED(len), const void *buf) + size_t WXUNUSED(len), + const void *buf) { - wxWCharBuffer buffer = GetConv(format).cMB2WX((const char *)buf); - if ( !buffer ) + if ( buf == NULL ) return false; - - SetText(buffer); - + + SetText(GetConv(format).cMB2WX(static_cast(buf))); + return true; } -#else +#else // !wxNEEDS_UTF{8,16}_FOR_TEXT_DATAOBJ + +// NB: This branch, using native wxChar for the clipboard, is only used under +// Windows currently. It's just a coincidence, but Windows is also the only +// platform where we need to convert the text to the native EOL format, so +// wxTextBuffer::Translate() is only used here and not in the code above. size_t wxTextDataObject::GetDataSize() const { - return GetTextLength() * sizeof(wxChar); + return (wxTextBuffer::Translate(GetText()).length() + 1)*sizeof(wxChar); } bool wxTextDataObject::GetDataHere(void *buf) const { - wxStrcpy((wxChar *)buf, GetText().c_str()); + const wxString textNative = wxTextBuffer::Translate(GetText()); + + // NOTE: use wxTmemcpy() instead of wxStrncpy() to allow + // retrieval of strings with embedded NULLs + wxTmemcpy(static_cast(buf), + textNative.t_str(), + textNative.length() + 1); return true; } -bool wxTextDataObject::SetData(size_t WXUNUSED(len), const void *buf) +bool wxTextDataObject::SetData(size_t len, const void *buf) { - SetText(wxString((const wxChar *)buf)); + const wxString + text = wxString(static_cast(buf), len/sizeof(wxChar)); + SetText(wxTextBuffer::Translate(text, wxTextFileType_Unix)); return true; } -#endif +#endif // different wxTextDataObject implementations // ---------------------------------------------------------------------------- -// wxFileDataObjectBase +// wxHTMLDataObject // ---------------------------------------------------------------------------- -// VZ: I don't need this in MSW finally, so if it is needed in wxGTK, it should -// be moved to gtk/dataobj.cpp -#if 0 +size_t wxHTMLDataObject::GetDataSize() const +{ + const wxScopedCharBuffer buffer(GetHTML().utf8_str()); -wxString wxFileDataObjectBase::GetFilenames() const + size_t size = buffer.length(); + +#ifdef __WXMSW__ + // On Windows we need to add some stuff to the string to satisfy + // its clipboard format requirements. + size += 400; +#endif + + return size; +} + +bool wxHTMLDataObject::GetDataHere(void *buf) const { - wxString str; - size_t count = m_filenames.GetCount(); - for ( size_t n = 0; n < count; n++ ) - { - str << m_filenames[n] << wxT('\0'); - } + if ( !buf ) + return false; + + // Windows and Mac always use UTF-8, and docs suggest GTK does as well. + const wxScopedCharBuffer html(GetHTML().utf8_str()); + if ( !html ) + return false; - return str; + char* const buffer = static_cast(buf); + +#ifdef __WXMSW__ + // add the extra info that the MSW clipboard format requires. + + // Create a template string for the HTML header... + strcpy(buffer, + "Version:0.9\r\n" + "StartHTML:00000000\r\n" + "EndHTML:00000000\r\n" + "StartFragment:00000000\r\n" + "EndFragment:00000000\r\n" + "\r\n" + "\r\n"); + + // Append the HTML... + strcat(buffer, html); + strcat(buffer, "\r\n"); + // Finish up the HTML format... + strcat(buffer, + "\r\n" + "\r\n" + ""); + + // Now go back, calculate all the lengths, and write out the + // necessary header information. Note, wsprintf() truncates the + // string when you overwrite it so you follow up with code to replace + // the 0 appended at the end with a '\r'... + char *ptr = strstr(buffer, "StartHTML"); + sprintf(ptr+10, "%08u", (unsigned)(strstr(buffer, "") - buffer)); + *(ptr+10+8) = '\r'; + + ptr = strstr(buffer, "EndHTML"); + sprintf(ptr+8, "%08u", (unsigned)strlen(buffer)); + *(ptr+8+8) = '\r'; + + ptr = strstr(buffer, "StartFragment"); + sprintf(ptr+14, "%08u", (unsigned)(strstr(buffer, "", fragmentStart) + 3; + int endCommentStart = html.rfind("