combobxc.cpp

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

        m_choice->DoAppend( choices[ i ] );
    }
    SetInitialSize(csize);   // Needed because it is a wxControlWithItems
#endif

    return true;
}

wxString wxComboBox::GetValue() const
{
#if USE_HICOMBOBOX
    CFStringRef myString;
    HIComboBoxCopyTextItemAtIndex( m_peer->GetControlRef(), (CFIndex)GetSelection(), &myString );
    return wxMacCFStringHolder( myString, m_font.GetEncoding() ).AsString();
#else
    wxString        result;

    if ( m_text == NULL )
    {
        result = m_choice->GetString( m_choice->GetSelection() );
    }
    else
    {
        result = m_text->GetValue();
    }

    return result;
#endif
}

void wxComboBox::SetValue(const wxString& value)
{
#if USE_HICOMBOBOX

#else
    int s = FindString (value);
    if (s == wxNOT_FOUND && !HasFlag(wxCB_READONLY) )
    {
        m_choice->Append(value);
    }
    SetStringSelection( value );
#endif
}

// Clipboard operations
void wxComboBox::Copy()
{
    if ( m_text != NULL )
    {
        m_text->Copy();
    }
}

void wxComboBox::Cut()
{
    if ( m_text != NULL )
    {
        m_text->Cut();
    }
}

void wxComboBox::Paste()
{
    if ( m_text != NULL )
    {
        m_text->Paste();
    }
}

void wxComboBox::SetEditable(bool editable)
{
    if ( ( m_text == NULL ) && editable )
    {
        m_text = new wxComboBoxText( this );
    }
    else if ( ( m_text != NULL ) && !editable )
    {
        delete m_text;
        m_text = NULL;
    }

    int currentX, currentY;
    GetPosition( &currentX, &currentY );

    int currentW, currentH;
    GetSize( &currentW, &currentH );

    DoMoveWindow( currentX, currentY, currentW, currentH );
}

void wxComboBox::SetInsertionPoint(long pos)
{
    // TODO
}

void wxComboBox::SetInsertionPointEnd()
{
    // TODO
}

long wxComboBox::GetInsertionPoint() const
{
    // TODO
    return 0;
}

wxTextPos wxComboBox::GetLastPosition() const
{
    // TODO
    return 0;
}

void wxComboBox::Replace(long from, long to, const wxString& value)
{
    // TODO
}

void wxComboBox::Remove(long from, long to)
{
    // TODO
}

void wxComboBox::SetSelection(long from, long to)
{
    // TODO
}

int wxComboBox::DoAppend(const wxString& item)
{
#if USE_HICOMBOBOX
    CFIndex outIndex;
    HIComboBoxAppendTextItem( m_peer->GetControlRef(), wxMacCFStringHolder( item, m_font.GetEncoding() ), &outIndex );
    //SetControl32BitMaximum( m_peer->GetControlRef(), GetCount() );
    return (int) outIndex;
#else
    return m_choice->DoAppend( item );
#endif
}

int wxComboBox::DoInsert(const wxString& item, unsigned int pos)
{
#if USE_HICOMBOBOX
    HIComboBoxInsertTextItemAtIndex( m_peer->GetControlRef(), (CFIndex)pos, wxMacCFStringHolder(item, m_font.GetEncoding()) );

    //SetControl32BitMaximum( m_peer->GetControlRef(), GetCount() );

    return pos;
#else
    return m_choice->DoInsert( item , pos );
#endif
}

void wxComboBox::DoSetItemClientData(unsigned int n, void* clientData)
{
#if USE_HICOMBOBOX
    return; //TODO
#else
    return m_choice->DoSetItemClientData( n , clientData );
#endif
}

void* wxComboBox::DoGetItemClientData(unsigned int n) const
{
#if USE_HICOMBOBOX
    return NULL; //TODO
#else
    return m_choice->DoGetItemClientData( n );
#endif
}

void wxComboBox::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
{
#if USE_HICOMBOBOX
    return; //TODO
#else
    return m_choice->DoSetItemClientObject( n , clientData );
#endif
}

wxClientData* wxComboBox::DoGetItemClientObject(unsigned int n) const
{
#if USE_HICOMBOBOX
    return NULL;
#else
    return m_choice->DoGetItemClientObject( n );
#endif
}

void wxComboBox::FreeData()
{
    if (HasClientObjectData())
    {
        unsigned int count = GetCount();
        for ( unsigned int n = 0; n < count; n++ )
        {
            SetClientObject( n, NULL );
        }
    }
}

unsigned int wxComboBox::GetCount() const {
#if USE_HICOMBOBOX
    return (unsigned int) HIComboBoxGetItemCount( m_peer->GetControlRef() );
#else
    return m_choice->GetCount();
#endif
}

void wxComboBox::Delete(unsigned int n)
{
#if USE_HICOMBOBOX
    HIComboBoxRemoveItemAtIndex( m_peer->GetControlRef(), (CFIndex)n );
#else
    // force client object deletion
    if( HasClientObjectData() )
        SetClientObject( n, NULL );
    m_choice->Delete( n );
#endif
}

void wxComboBox::Clear()
{
    FreeData();
#if USE_HICOMBOBOX
    for ( CFIndex i = GetCount() - 1; i >= 0; ++ i )
        verify_noerr( HIComboBoxRemoveItemAtIndex( m_peer->GetControlRef(), i ) );
    m_peer->SetData<CFStringRef>(kHIComboBoxEditTextPart,kControlEditTextCFStringTag,CFSTR(""));
#else
    m_choice->Clear();
#endif
}

int wxComboBox::GetSelection() const
{
#if USE_HICOMBOBOX
    return FindString( GetStringSelection() );
#else
    return m_choice->GetSelection();
#endif
}

void wxComboBox::SetSelection(int n)
{
#if USE_HICOMBOBOX
    SetControl32BitValue( m_peer->GetControlRef() , n + 1 );
#else
    m_choice->SetSelection( n );

    if ( m_text != NULL )
    {
        m_text->SetValue(GetString(n));
    }
#endif
}

int wxComboBox::FindString(const wxString& s, bool bCase) const
{
#if USE_HICOMBOBOX
    for( unsigned int i = 0 ; i < GetCount() ; i++ )
    {
        if (GetString(i).IsSameAs(s, bCase) )
            return i ;
    }
    return wxNOT_FOUND;
#else
    return m_choice->FindString( s, bCase );
#endif
}

wxString wxComboBox::GetString(unsigned int n) const
{
#if USE_HICOMBOBOX
    CFStringRef itemText;
    HIComboBoxCopyTextItemAtIndex( m_peer->GetControlRef(), (CFIndex)n, &itemText );
    return wxMacCFStringHolder(itemText).AsString();
#else
    return m_choice->GetString( n );
#endif
}

wxString wxComboBox::GetStringSelection() const
{
#if USE_HICOMBOBOX
    return wxMacCFStringHolder(m_peer->GetData<CFStringRef>(kHIComboBoxEditTextPart,kControlEditTextCFStringTag)).AsString();
#else
    int sel = GetSelection ();
    if (sel != wxNOT_FOUND)
        return wxString(this->GetString((unsigned int)sel));
    else
        return wxEmptyString;
#endif
}

void wxComboBox::SetString(unsigned int n, const wxString& s)
{
#if USE_HICOMBOBOX
    verify_noerr ( HIComboBoxInsertTextItemAtIndex( m_peer->GetControlRef(), (CFIndex) n,
        wxMacCFStringHolder(s, m_font.GetEncoding()) ) );
    verify_noerr ( HIComboBoxRemoveItemAtIndex( m_peer->GetControlRef(), (CFIndex) n + 1 ) );
#else
    m_choice->SetString( n , s );
#endif
}

bool wxComboBox::IsEditable() const
{
#if USE_HICOMBOBOX
    // TODO
    return !HasFlag(wxCB_READONLY);
#else
    return m_text != NULL && !HasFlag(wxCB_READONLY);
#endif
}

void wxComboBox::Undo()
{
#if USE_HICOMBOBOX
    // TODO
#else
    if (m_text != NULL)
        m_text->Undo();
#endif
}

void wxComboBox::Redo()
{
#if USE_HICOMBOBOX
    // TODO
#else
    if (m_text != NULL)
        m_text->Redo();
#endif
}

void wxComboBox::SelectAll()
{
#if USE_HICOMBOBOX
    // TODO
#else
    if (m_text != NULL)
        m_text->SelectAll();
#endif
}

bool wxComboBox::CanCopy() const
{
#if USE_HICOMBOBOX
    // TODO
    return false;
#else
    if (m_text != NULL)
        return m_text->CanCopy();
    else
        return false;
#endif
}

bool wxComboBox::CanCut() const
{
#if USE_HICOMBOBOX
    // TODO
    return false;
#else
    if (m_text != NULL)
        return m_text->CanCut();
    else
        return false;
#endif
}

bool wxComboBox::CanPaste() const
{
#if USE_HICOMBOBOX
    // TODO
    return false;
#else
    if (m_text != NULL)
        return m_text->CanPaste();
    else
        return false;
#endif
}

bool wxComboBox::CanUndo() const
{
#if USE_HICOMBOBOX
    // TODO
    return false;
#else
    if (m_text != NULL)
        return m_text->CanUndo();
    else
        return false;
#endif
}

bool wxComboBox::CanRedo() const
{
#if USE_HICOMBOBOX
    // TODO
    return false;
#else
    if (m_text != NULL)
        return m_text->CanRedo();
    else
        return false;
#endif
}

wxInt32 wxComboBox::MacControlHit(WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
{
    wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, m_windowId );
    event.SetInt(GetSelection());
    event.SetEventObject(this);
    event.SetString(GetStringSelection());
    ProcessCommand(event);
    return noErr;
}