+ 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 )
+{
+ Point current, 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
+
+ OSErr theErr = noErr;
+ long dv = desired.v - current.v;
+ long dh = desired.h - current.h;
+ TXNShowSelection( m_txn, kTXNShowStart ) ; // NB: should this be kTXNShowStart or kTXNShowEnd ??
+ theErr = TXNScroll( m_txn, kTXNScrollUnitsInPixels, kTXNScrollUnitsInPixels, &dv, &dh );
+
+ // there will be an error returned for classic MLTE implementation when the control is
+ // invisible, but HITextView works correctly, so we don't assert that one
+ // wxASSERT_MSG( theErr == noErr, _T("TXNScroll returned an error!") );
+}
+
+void wxMacMLTEControl::SetTXNData( const wxString& st, TXNOffset start, TXNOffset end )
+{
+#if wxUSE_UNICODE
+#if SIZEOF_WCHAR_T == 2
+ size_t len = st.length() ;
+ TXNSetData( m_txn, kTXNUnicodeTextData, (void*)st.wc_str(), len * 2, start, end );
+#else
+ wxMBConvUTF16 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
+#else
+ wxCharBuffer text = st.mb_str( wxConvLocal ) ;
+ TXNSetData( m_txn, kTXNTextData, (void*)text.data(), strlen( text ), start, end ) ;
+#endif
+}
+
+wxString wxMacMLTEControl::GetLineText(long lineNo) const
+{
+ wxString line ;
+
+ if ( lineNo < GetNumberOfLines() )
+ {
+ Point firstPoint;
+ Fixed lineWidth, lineHeight, currentHeight;
+ long ypos ;
+
+ // get the first possible position in the control
+ TXNOffsetToPoint(m_txn, 0, &firstPoint);
+
+ // Iterate through the lines until we reach the one we want,
+ // adding to our current y pixel point position
+ ypos = 0 ;
+ currentHeight = 0;
+ while (ypos < lineNo)
+ {
+ TXNGetLineMetrics(m_txn, ypos++, &lineWidth, &lineHeight);
+ currentHeight += lineHeight;
+ }
+
+ Point thePoint = { firstPoint.v + (currentHeight >> 16), firstPoint.h + (0) };
+ TXNOffset theOffset;
+ TXNPointToOffset(m_txn, thePoint, &theOffset);
+
+ wxString content = GetStringValue() ;
+ Point currentPoint = thePoint;
+ while (thePoint.v == currentPoint.v && theOffset < content.length())
+ {
+ line += content[theOffset];
+ TXNOffsetToPoint(m_txn, ++theOffset, ¤tPoint);
+ }
+ }
+
+ return line ;
+}
+
+int wxMacMLTEControl::GetLineLength(long lineNo) const
+{
+ int theLength = 0;
+
+ if ( lineNo < GetNumberOfLines() )
+ {
+ Point firstPoint;
+ Fixed lineWidth, lineHeight, currentHeight;
+ long ypos;
+
+ // get the first possible position in the control
+ TXNOffsetToPoint(m_txn, 0, &firstPoint);
+
+ // Iterate through the lines until we reach the one we want,
+ // adding to our current y pixel point position
+ ypos = 0;
+ currentHeight = 0;
+ while (ypos < lineNo)
+ {
+ TXNGetLineMetrics(m_txn, ypos++, &lineWidth, &lineHeight);
+ currentHeight += lineHeight;
+ }
+
+ Point thePoint = { firstPoint.v + (currentHeight >> 16), firstPoint.h + (0) };
+ TXNOffset theOffset;
+ TXNPointToOffset(m_txn, thePoint, &theOffset);
+
+ wxString content = GetStringValue() ;
+ Point currentPoint = thePoint;
+ while (thePoint.v == currentPoint.v && theOffset < content.length())
+ {
+ ++theLength;
+ TXNOffsetToPoint(m_txn, ++theOffset, ¤tPoint);
+ }
+ }
+
+ return theLength ;
+}
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5
+
+// ----------------------------------------------------------------------------
+// MLTE control implementation (classic part)
+// ----------------------------------------------------------------------------
+
+// OS X Notes : We still don't have a full replacement for MLTE, so this implementation
+// has to live on. We have different problems coming from outdated implementations on the
+// various OS X versions. Most deal with the scrollbars: they are not correctly embedded
+// while this can be solved on 10.3 by reassigning them the correct place, on 10.2 there is
+// no way out, therefore we are using our own implementation and our own scrollbars ....
+
+#ifdef __WXMAC_OSX__
+
+TXNScrollInfoUPP gTXNScrollInfoProc = NULL ;
+ControlActionUPP gTXNScrollActionProc = NULL ;
+
+pascal void wxMacMLTEClassicControl::TXNScrollInfoProc(
+ SInt32 iValue, SInt32 iMaximumValue,
+ TXNScrollBarOrientation iScrollBarOrientation, SInt32 iRefCon )
+{
+ wxMacMLTEClassicControl* mlte = (wxMacMLTEClassicControl*) iRefCon ;
+ SInt32 value = wxMax( iValue , 0 ) ;
+ SInt32 maximum = wxMax( iMaximumValue , 0 ) ;
+
+ if ( iScrollBarOrientation == kTXNHorizontal )
+ {
+ if ( mlte->m_sbHorizontal )
+ {
+ SetControl32BitValue( mlte->m_sbHorizontal , value ) ;
+ SetControl32BitMaximum( mlte->m_sbHorizontal , maximum ) ;
+ mlte->m_lastHorizontalValue = value ;
+ }
+ }
+ else if ( iScrollBarOrientation == kTXNVertical )
+ {
+ if ( mlte->m_sbVertical )
+ {
+ SetControl32BitValue( mlte->m_sbVertical , value ) ;
+ SetControl32BitMaximum( mlte->m_sbVertical , maximum ) ;
+ mlte->m_lastVerticalValue = value ;
+ }
+ }
+}
+
+pascal void wxMacMLTEClassicControl::TXNScrollActionProc( ControlRef controlRef , ControlPartCode partCode )
+{
+ wxMacMLTEClassicControl* mlte = (wxMacMLTEClassicControl*) GetControlReference( controlRef ) ;
+ if ( mlte == NULL )
+ return ;
+
+ if ( controlRef != mlte->m_sbVertical && controlRef != mlte->m_sbHorizontal )
+ return ;
+
+ OSStatus err ;
+ bool isHorizontal = ( controlRef == mlte->m_sbHorizontal ) ;
+
+ SInt32 minimum = 0 ;
+ SInt32 maximum = GetControl32BitMaximum( controlRef ) ;
+ SInt32 value = GetControl32BitValue( controlRef ) ;
+ SInt32 delta = 0;
+
+ switch ( partCode )
+ {
+ case kControlDownButtonPart :
+ delta = 10 ;
+ break ;
+
+ case kControlUpButtonPart :
+ delta = -10 ;
+ break ;
+
+ case kControlPageDownPart :
+ delta = GetControlViewSize( controlRef ) ;
+ break ;
+
+ case kControlPageUpPart :
+ delta = -GetControlViewSize( controlRef ) ;
+ break ;
+
+ case kControlIndicatorPart :
+ delta = value - (isHorizontal ? mlte->m_lastHorizontalValue : mlte->m_lastVerticalValue) ;
+ break ;
+
+ default :
+ break ;
+ }
+
+ if ( delta != 0 )
+ {
+ SInt32 newValue = value ;
+
+ if ( partCode != kControlIndicatorPart )
+ {
+ if ( value + delta < minimum )
+ delta = minimum - value ;
+ if ( value + delta > maximum )
+ delta = maximum - value ;
+
+ SetControl32BitValue( controlRef , value + delta ) ;
+ newValue = value + delta ;
+ }
+
+ SInt32 verticalDelta = isHorizontal ? 0 : delta ;
+ SInt32 horizontalDelta = isHorizontal ? delta : 0 ;
+
+ err = TXNScroll(
+ mlte->m_txn, kTXNScrollUnitsInPixels, kTXNScrollUnitsInPixels,
+ &verticalDelta, &horizontalDelta );
+ verify_noerr( err );
+
+ if ( isHorizontal )
+ mlte->m_lastHorizontalValue = newValue ;
+ else
+ mlte->m_lastVerticalValue = newValue ;
+ }
+}
+#endif
+
+// make correct activations
+void wxMacMLTEClassicControl::MacActivatePaneText(bool setActive)
+{
+ wxTextCtrl* textctrl = (wxTextCtrl*) GetControlReference(m_controlRef);
+
+ wxMacWindowClipper clipper( textctrl ) ;
+ TXNActivate( m_txn, m_txnFrameID, setActive );
+
+ ControlRef controlFocus = 0 ;
+ GetKeyboardFocus( m_txnWindow , &controlFocus ) ;
+ if ( controlFocus == m_controlRef )
+ TXNFocus( m_txn, setActive );
+}
+
+void wxMacMLTEClassicControl::MacFocusPaneText(bool setFocus)
+{
+ TXNFocus( m_txn, setFocus );
+}
+
+// guards against inappropriate redraw (hidden objects drawing onto window)
+
+void wxMacMLTEClassicControl::MacSetObjectVisibility(bool vis)
+{
+ ControlRef controlFocus = 0 ;
+ GetKeyboardFocus( m_txnWindow , &controlFocus ) ;
+
+ if ( !vis && (controlFocus == m_controlRef ) )
+ SetKeyboardFocus( m_txnWindow , m_controlRef , kControlFocusNoPart ) ;
+
+ TXNControlTag iControlTags[1] = { kTXNVisibilityTag };
+ TXNControlData iControlData[1] = { { (UInt32)false } };
+
+ verify_noerr( TXNGetTXNObjectControls( m_txn , 1, iControlTags, iControlData ) ) ;
+
+ if ( iControlData[0].uValue != vis )
+ {
+ iControlData[0].uValue = vis ;
+ verify_noerr( TXNSetTXNObjectControls( m_txn, false , 1, iControlTags, iControlData ) ) ;
+ }
+
+ // currently, we always clip as partial visibility (overlapped) visibility is also a problem,
+ // if we run into further problems we might set the FrameBounds to an empty rect here
+}
+
+// make sure that the TXNObject is at the right position
+
+void wxMacMLTEClassicControl::MacUpdatePosition()
+{
+ wxTextCtrl* textctrl = (wxTextCtrl*)GetControlReference( m_controlRef );
+ if ( textctrl == NULL )
+ return ;
+
+ Rect bounds ;
+ UMAGetControlBoundsInWindowCoords( m_controlRef, &bounds );
+
+ wxRect visRect = textctrl->MacGetClippedClientRect() ;
+ Rect visBounds = { visRect.y , visRect.x , visRect.y + visRect.height , visRect.x + visRect.width } ;
+ int x , y ;
+ x = y = 0 ;
+ textctrl->MacWindowToRootWindow( &x , &y ) ;
+ OffsetRect( &visBounds , x , y ) ;
+
+ if ( !EqualRect( &bounds, &m_txnControlBounds ) || !EqualRect( &visBounds, &m_txnVisBounds ) )
+ {
+ m_txnControlBounds = bounds ;
+ m_txnVisBounds = visBounds ;
+ wxMacWindowClipper cl( textctrl ) ;
+
+#ifdef __WXMAC_OSX__
+ if ( m_sbHorizontal || m_sbVertical )
+ {
+ int w = bounds.right - bounds.left ;
+ int h = bounds.bottom - bounds.top ;
+
+ if ( m_sbHorizontal )