textctrl.cpp

Wxpython Implemented on Windows CE, Source code

    m_macUsesTXN = ! (style & wxTE_PASSWORD ) ;

    m_macUsesTXN &= (TXNInitTextension != (void*) kUnresolvedCFragSymbolAddress) ;

    // base initialization
    if ( !wxTextCtrlBase::Create(parent, id, pos, size, style & ~(wxHSCROLL|wxVSCROLL), validator, name) )
        return false;

    wxSize mySize = size ;
    if ( m_macUsesTXN )
    {
        m_macHorizontalBorder = 5 ; // additional pixels around the real control
        m_macVerticalBorder = 3 ;
    }
    else
    {
        m_macHorizontalBorder = 5 ; // additional pixels around the real control
        m_macVerticalBorder = 5 ;
    }


    Rect bounds ;
    Str255 title ;
    /*
    if ( mySize.y == -1 )
    {
        mySize.y = 13 ;
        if ( m_windowStyle & wxTE_MULTILINE )
            mySize.y *= 5 ;

        mySize.y += 2 * m_macVerticalBorder ;
    }
    */
    MacPreControlCreate( parent , id ,  wxEmptyString , pos , mySize ,style, validator , name , &bounds , title ) ;

    if ( m_windowStyle & wxTE_MULTILINE )
    {
        wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER),
                      wxT("wxTE_PROCESS_ENTER style is ignored for multiline text controls (they always process it)") );

        m_windowStyle |= wxTE_PROCESS_ENTER;
    }

    if ( m_windowStyle & wxTE_READONLY)
    {
        m_editable = false ;
    }

    wxString st = str ;
    wxMacConvertNewlines13To10( &st ) ;
    if ( !m_macUsesTXN )
    {
        m_macControl = (WXWidget) ::NewControl( MAC_WXHWND(parent->MacGetRootWindow()) , &bounds , "\p" , false , 0 , 0 , 1,
            (style & wxTE_PASSWORD) ? kControlEditTextPasswordProc : kControlEditTextProc , (long) this ) ;
        long size ;
        ::GetControlData((ControlHandle)  m_macControl , 0, kControlEditTextTEHandleTag , sizeof( TEHandle ) , (char*)((TEHandle *)&m_macTE) , &size ) ;

    }
    else
    {
        short featurSet;

        featurSet = kControlSupportsEmbedding | kControlSupportsFocus  | kControlWantsIdle
                | kControlWantsActivate | kControlHandlesTracking | kControlHasSpecialBackground
                | kControlGetsFocusOnClick | kControlSupportsLiveFeedback;
            /* create the control */
        m_macControl = (WXWidget) ::NewControl(MAC_WXHWND(parent->MacGetRootWindow()), &bounds, "\p", false , featurSet, 0, featurSet, kControlUserPaneProc, 0);
            /* set up the mUP specific features and data */
        mUPOpenControl((ControlHandle) m_macControl, m_windowStyle );
    }
    MacPostControlCreate() ;

    if ( !m_macUsesTXN )
    {
        wxCharBuffer text = st.mb_str(wxConvLocal) ;
        ::SetControlData( (ControlHandle) m_macControl, 0, ( m_windowStyle & wxTE_PASSWORD ) ? kControlEditTextPasswordTag : kControlEditTextTextTag , strlen(text) , text ) ;
    }
    else
    {
        STPTextPaneVars **tpvars;
            /* set up locals */
        tpvars = (STPTextPaneVars **) GetControlReference((ControlHandle) m_macControl);
            /* set the text in the record */
        m_macTXN =  (**tpvars).fTXNRec ;
        SetTXNData( (TXNObject) m_macTXN , st , kTXNStartOffset, kTXNEndOffset ) ;
        m_macTXNvars = tpvars ;
        m_macUsesTXN = true ;
        TXNSetSelection( (TXNObject) m_macTXN, 0, 0);
        TXNShowSelection( (TXNObject) m_macTXN, kTXNShowStart);
    }

    return true;
}

wxString wxTextCtrl::GetValue() const
{
    Size actualSize = 0;
    wxString result ;
    OSStatus err ;
    if ( !m_macUsesTXN )
    {
        err = ::GetControlDataSize((ControlHandle) m_macControl, 0,
            ( m_windowStyle & wxTE_PASSWORD ) ? kControlEditTextPasswordTag : kControlEditTextTextTag, &actualSize ) ;

        if ( err )
            return wxEmptyString ;

        if ( actualSize > 0 )
        {
            wxCharBuffer buf(actualSize) ;
            ::GetControlData( (ControlHandle) m_macControl, 0,
                ( m_windowStyle & wxTE_PASSWORD ) ? kControlEditTextPasswordTag : kControlEditTextTextTag,
                actualSize , buf.data() , &actualSize ) ;
            result = wxString( buf , wxConvLocal) ;
        }
    }
    else
    {
#if wxUSE_UNICODE
        Handle theText ;
        err = TXNGetDataEncoded( ((TXNObject) m_macTXN), kTXNStartOffset, kTXNEndOffset, &theText , kTXNUnicodeTextData );
        // all done
        if ( err )
        {
            actualSize = 0 ;
        }
        else
        {
            actualSize = GetHandleSize( theText ) / sizeof( UniChar) ;
            if ( actualSize > 0 )
            {
                wxChar *ptr = result.GetWriteBuf(actualSize*sizeof(wxChar)) ;
#if SIZEOF_WCHAR_T == 2
                wxStrncpy( ptr , (wxChar*) *theText , actualSize ) ;
#else
                wxMBConvUTF16BE converter ;
                HLock( theText ) ;
                converter.MB2WC( ptr , (const char*)*theText , actualSize ) ;
                HUnlock( theText ) ;
#endif
                ptr[actualSize] = 0 ;
                result.UngetWriteBuf( actualSize *sizeof(wxChar) ) ;
            }
            DisposeHandle( theText ) ;
        }
#else
        Handle theText ;
        err = TXNGetDataEncoded( ((TXNObject) m_macTXN), kTXNStartOffset, kTXNEndOffset, &theText , kTXNTextData );
        // all done
        if ( err )
        {
            actualSize = 0 ;
        }
        else
        {
            actualSize = GetHandleSize( theText ) ;
            if ( actualSize > 0 )
            {
                HLock( theText ) ;
                result = wxString( *theText , wxConvLocal , actualSize ) ;
                HUnlock( theText ) ;
            }
            DisposeHandle( theText ) ;
        }
#endif
    }
    wxMacConvertNewlines10To13( &result ) ;
    return result ;
}

void wxTextCtrl::GetSelection(long* from, long* to) const
{
  if ( !m_macUsesTXN )
  {
    *from = (**((TEHandle) m_macTE)).selStart;
    *to = (**((TEHandle) m_macTE)).selEnd;
   }
   else
   {
        TXNGetSelection( (TXNObject) m_macTXN , (TXNOffset*) from , (TXNOffset*) to ) ;
   }
}

void wxTextCtrl::SetValue(const wxString& str)
{
    wxString st = str ;
    wxMacConvertNewlines13To10( &st ) ;
    if ( !m_macUsesTXN )
    {
        wxCharBuffer text =  st.mb_str(wxConvLocal) ;
        ::SetControlData( (ControlHandle) m_macControl, 0, ( m_windowStyle & wxTE_PASSWORD ) ? kControlEditTextPasswordTag : kControlEditTextTextTag , strlen(text) , text ) ;
    }
    else
    {
        bool formerEditable = m_editable ;
        if ( !formerEditable )
            SetEditable(true) ;
        SetTXNData( (TXNObject) m_macTXN , st , kTXNStartOffset, kTXNEndOffset ) ;
        TXNSetSelection( (TXNObject) m_macTXN, 0, 0);
        TXNShowSelection( (TXNObject) m_macTXN, kTXNShowStart);
        if ( !formerEditable )
            SetEditable(formerEditable) ;
    }
    MacRedrawControl() ;
}

void wxTextCtrl::SetMaxLength(unsigned long len)
{
    m_maxLength = len ;
}

bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
{
    if ( m_macUsesTXN )
    {
        bool formerEditable = m_editable ;
        if ( !formerEditable )
            SetEditable(true) ;
        TXNTypeAttributes typeAttr[4] ;
        Str255 fontName = "\pMonaco" ;
        SInt16 fontSize = 12 ;
        Style fontStyle = normal ;
        RGBColor color ;
        int attrCounter = 0 ;
        if ( style.HasFont() )
        {
            const wxFont &font = style.GetFont() ;
            wxMacStringToPascal( font.GetFaceName() , fontName ) ;
            fontSize = font.GetPointSize() ;
            if ( font.GetUnderlined() )
                fontStyle |= underline ;
            if ( font.GetWeight() == wxBOLD )
                fontStyle |= bold ;
            if ( font.GetStyle() == wxITALIC )
                fontStyle |= italic ;

            typeAttr[attrCounter].tag = kTXNQDFontNameAttribute ;
            typeAttr[attrCounter].size = kTXNQDFontNameAttributeSize ;
            typeAttr[attrCounter].data.dataPtr = (void*) fontName ;
            typeAttr[attrCounter+1].tag = kTXNQDFontSizeAttribute ;
            typeAttr[attrCounter+1].size = kTXNFontSizeAttributeSize ;
            typeAttr[attrCounter+1].data.dataValue =  (fontSize << 16) ;
            typeAttr[attrCounter+2].tag = kTXNQDFontStyleAttribute ;
            typeAttr[attrCounter+2].size = kTXNQDFontStyleAttributeSize ;
            typeAttr[attrCounter+2].data.dataValue = fontStyle ;
            attrCounter += 3 ;

        }
        if ( style.HasTextColour() )
        {
            typeAttr[attrCounter].tag = kTXNQDFontColorAttribute ;
            typeAttr[attrCounter].size = kTXNQDFontColorAttributeSize ;
            typeAttr[attrCounter].data.dataPtr = (void*) &color ;
            color = MAC_WXCOLORREF(style.GetTextColour().GetPixel()) ;
            attrCounter += 1 ;
        }

        if ( attrCounter > 0 )
        {
#ifdef __WXDEBUG__
            OSStatus status =
#endif // __WXDEBUG__
                TXNSetTypeAttributes ((TXNObject)m_macTXN, attrCounter , typeAttr, start,end);
            wxASSERT_MSG( status == noErr , wxT("Couldn't set text attributes") ) ;
        }
        if ( !formerEditable )
            SetEditable(formerEditable) ;
    }
    return true ;
}

bool wxTextCtrl::SetDefaultStyle(const wxTextAttr& style)
{
    wxTextCtrlBase::SetDefaultStyle( style ) ;
    SetStyle( kTXNUseCurrentSelection , kTXNUseCurrentSelection , GetDefaultStyle() ) ;
    return true ;
}

// Clipboard operations
void wxTextCtrl::Copy()
{
    if (CanCopy())
    {
      if ( !m_macUsesTXN )
      {
            TECopy( ((TEHandle) m_macTE) ) ;
            ClearCurrentScrap();
            TEToScrap() ;
            MacRedrawControl() ;
        }
        else
        {
            ClearCurrentScrap();
            TXNCopy((TXNObject)m_macTXN);
            TXNConvertToPublicScrap();
        }
    }
}

void wxTextCtrl::Cut()
{
    if (CanCut())
    {
        if ( !m_macUsesTXN )
        {
            TECut( ((TEHandle) m_macTE) ) ;
            ClearCurrentScrap();
            TEToScrap() ;
            MacRedrawControl() ;
        }
        else
        {
            ClearCurrentScrap();
            TXNCut((TXNObject)m_macTXN);
            TXNConvertToPublicScrap();
        }
        wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
        event.SetEventObject( this );
        GetEventHandler()->ProcessEvent(event);
      }
}

void wxTextCtrl::Paste()
{
    if (CanPaste())
    {
        if ( !m_macUsesTXN )
        {
            TEFromScrap() ;
            TEPaste( (TEHandle) m_macTE ) ;
            MacRedrawControl() ;
        }
        else
        {
            TXNConvertFromPublicScrap();
            TXNPaste((TXNObject)m_macTXN);
            SetStyle( kTXNUseCurrentSelection , kTXNUseCurrentSelection , GetDefaultStyle() ) ;
        }
        wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
        event.SetEventObject( this );
        GetEventHandler()->ProcessEvent(event);
    }
}

bool wxTextCtrl::CanCopy() const
{
    // Can copy if there's a selection
    long from, to;
    GetSelection(& from, & to);
    return (from != to);
}

bool wxTextCtrl::CanCut() const
{
    if ( !IsEditable() )
    {
        return false ;
    }
    // Can cut if there's a selection
    long from, to;
    GetSelection(& from, & to);