+ TXNSetSelection( m_txn, from, to);
+ TXNShowSelection( m_txn, kTXNShowStart);
+}
+
+void wxMacMLTEControl::WriteText(const wxString& str)
+{
+ EditHelper helper( m_txn ) ;
+ wxString st = str ;
+ wxMacConvertNewlines10To13( &st ) ;
+
+ long start , end , dummy ;
+ GetSelection( &start , &dummy ) ;
+ SetTXNData( st , kTXNUseCurrentSelection, kTXNUseCurrentSelection ) ;
+ GetSelection( &dummy , &end ) ;
+ // TODO SetStyle( start , end , GetDefaultStyle() ) ;
+}
+
+void wxMacMLTEControl::Clear()
+{
+ EditHelper st(m_txn) ;
+ TXNSetSelection( m_txn , kTXNStartOffset , kTXNEndOffset ) ;
+ TXNClear(m_txn);
+}
+
+bool wxMacMLTEControl::CanUndo() const
+{
+ return TXNCanUndo( m_txn , NULL ) ;
+}
+
+void wxMacMLTEControl::Undo()
+{
+ TXNUndo( m_txn ) ;
+}
+
+bool wxMacMLTEControl::CanRedo() const
+{
+ return TXNCanRedo( m_txn , NULL ) ;
+}
+
+void wxMacMLTEControl::Redo()
+{
+ TXNRedo( m_txn ) ;
+}
+
+int wxMacMLTEControl::GetNumberOfLines() const
+{
+ ItemCount lines = 0 ;
+ TXNGetLineCount(m_txn, &lines ) ;
+ return lines ;
+}
+
+long wxMacMLTEControl::XYToPosition(long x, long y) const
+{
+ Point curpt ;
+
+ wxTextPos lastpos = GetLastPosition() ;
+
+ // TODO find a better implementation : while we can get the
+ // line metrics of a certain line, we don't get its starting
+ // position, so it would probably be rather a binary search
+ // for the start position
+ long xpos = 0 ;
+ long ypos = 0 ;
+ int lastHeight = 0 ;
+
+ ItemCount n ;
+ for ( n = 0 ; n <= (ItemCount) lastpos ; ++n )
+ {
+ if ( y == ypos && x == xpos )
+ return n ;
+
+ TXNOffsetToPoint( m_txn , n , &curpt);
+
+ if ( curpt.v > lastHeight )
+ {
+ xpos = 0 ;
+ if ( n > 0 )
+ ++ypos ;
+ lastHeight = curpt.v ;
+ }
+ else
+ ++xpos ;
+ }
+ return 0 ;
+}
+
+bool wxMacMLTEControl::PositionToXY(long pos, long *x, long *y) const
+{
+ Point curpt ;
+
+ wxTextPos lastpos = GetLastPosition() ;
+
+ if ( y ) *y = 0 ;
+ if ( x ) *x = 0 ;
+
+ if ( pos <= lastpos )
+ {
+ // TODO find a better implementation : while we can get the
+ // line metrics of a certain line, we don't get its starting
+ // position, so it would probably be rather a binary search
+ // for the start position
+ long xpos = 0 ;
+ long ypos = 0 ;
+ int lastHeight = 0 ;
+
+ ItemCount n ;
+ for ( n = 0 ; n <= (ItemCount) pos ; ++n )
+ {
+ TXNOffsetToPoint(m_txn , n , &curpt);
+
+ if ( curpt.v > lastHeight )
+ {
+ xpos = 0 ;
+ if ( n > 0 )
+ ++ypos ;
+ lastHeight = curpt.v ;
+ }
+ else
+ ++xpos ;
+ }
+ if ( y ) *y = ypos ;
+ if ( x ) *x = xpos ;
+ }
+
+ return false ;
+}
+
+void wxMacMLTEControl::ShowPosition( long pos )
+{
+#if TARGET_RT_MAC_MACHO && defined(AVAILABLE_MAC_OS_X_VERSION_10_2_AND_LATER)
+ {
+ Point current ;
+ Point desired ;
+ TXNOffset selstart , selend ;
+ TXNGetSelection( m_txn , &selstart , &selend) ;
+ TXNOffsetToPoint( m_txn, selstart , ¤t);
+ TXNOffsetToPoint( m_txn, pos , &desired);
+ //TODO use HIPoints for 10.3 and above
+ if ( (UInt32) TXNScroll != (UInt32) kUnresolvedCFragSymbolAddress )
+ {
+ OSErr theErr = noErr;
+ SInt32 dv = desired.v - current.v ;
+ SInt32 dh = desired.h - current.h ;
+ TXNShowSelection( m_txn , true ) ;
+ theErr = TXNScroll( m_txn, kTXNScrollUnitsInPixels , kTXNScrollUnitsInPixels , &dv , &dh );
+ wxASSERT_MSG( theErr == noErr, _T("TXNScroll returned an error!") );
+ }
+ }
+#endif
+}
+
+void wxMacMLTEControl::SetTXNData( const wxString& st , TXNOffset start , TXNOffset end )
+{
+#if wxUSE_UNICODE
+#if SIZEOF_WCHAR_T == 2
+ size_t len = st.Len() ;
+ TXNSetData( m_txn , kTXNUnicodeTextData, (void*)st.wc_str(), len * 2,
+ start, end);
+#else
+ wxMBConvUTF16BE converter ;
+ ByteCount byteBufferLen = converter.WC2MB( NULL , st.wc_str() , 0 ) ;
+ UniChar *unibuf = (UniChar*) malloc(byteBufferLen) ;
+ converter.WC2MB( (char*) unibuf , st.wc_str() , byteBufferLen ) ;
+ TXNSetData( m_txn , kTXNUnicodeTextData, (void*)unibuf, byteBufferLen ,
+ start, end);
+ free( unibuf ) ;
+#endif
projects / wxWidgets.git / blobdiff