C++ LIB_ITEM::IsNew方法代码示例

static void AbortSymbolTraceOn( EDA_DRAW_PANEL* Panel, wxDC* DC )
{
    LIB_EDIT_FRAME* parent = (LIB_EDIT_FRAME*) Panel->GetParent();
    LIB_ITEM* item = parent->GetDrawItem();

    if( item == NULL )
        return;

    bool newItem = item->IsNew();
    item->EndEdit( parent->GetCrossHairPosition( true ), true );

    if( newItem )
    {
        delete item;
    }
    else
        parent->RestoreComponent();

    parent->SetDrawItem( NULL );
    Panel->Refresh();
}

void LIB_EDIT_FRAME::EndDrawGraphicItem( wxDC* DC )
{
    LIB_ITEM* item = GetDrawItem();

    if( item == NULL )
        return;

    if( LIB_PART* part = GetCurPart() )
    {
        if( GetToolId() != ID_NO_TOOL_SELECTED )
            SetCursor( wxCURSOR_PENCIL );
        else
            SetCursor( (wxStockCursor) m_canvas->GetDefaultCursor() );

        if( GetTempCopyComponent() )    // used when editing an existing item
            SaveCopyInUndoList( GetTempCopyComponent() );
        else
        {
            // When creating a new item, there is still no change for the
            // current symbol. So save it.
            SaveCopyInUndoList( part );
        }

        if( item->IsNew() )
            part->AddDrawItem( item );

        item->EndEdit( GetCrossHairPosition( true ) );

        SetDrawItem( NULL );

        OnModify();

        m_canvas->SetMouseCapture( NULL, NULL );
        m_canvas->Refresh();
    }
}

void LIB_EDIT_FRAME::OnLeftClick( wxDC* DC, const wxPoint& aPosition )
{
    LIB_ITEM*   item = GetDrawItem();
    bool        item_in_edit = item && item->InEditMode();
    bool        no_item_edited = !item_in_edit;

    LIB_PART*      part = GetCurPart();

    if( !part )         // No component loaded !
        return;

    if( ( GetToolId() == ID_NO_TOOL_SELECTED ) && no_item_edited )
    {
        item = LocateItemUsingCursor( aPosition );

        if( item )
        {
            MSG_PANEL_ITEMS items;
            item->GetMsgPanelInfo( items );

            SetMsgPanel( items );
        }
        else
        {
            DisplayCmpDoc();

            if( m_canvas->GetAbortRequest() )
                m_canvas->SetAbortRequest( false );
        }
    }

    switch( GetToolId() )
    {
    case ID_ZOOM_SELECTION:
        break;

    case ID_NO_TOOL_SELECTED:
        // If an item is currently in edit, finish edit
        if( item_in_edit )
        {
            switch( item->Type() )
            {
            case LIB_PIN_T:
                PlacePin();
                break;

            default:
                EndDrawGraphicItem( DC );
                break;
            }
        }
        break;

    case ID_LIBEDIT_PIN_BUTT:
        if( no_item_edited )
            CreatePin( DC );
        else
            PlacePin();
        break;

    case ID_LIBEDIT_BODY_LINE_BUTT:
    case ID_LIBEDIT_BODY_ARC_BUTT:
    case ID_LIBEDIT_BODY_CIRCLE_BUTT:
    case ID_LIBEDIT_BODY_RECT_BUTT:
    case ID_LIBEDIT_BODY_TEXT_BUTT:
        if( no_item_edited )
            SetDrawItem( CreateGraphicItem( part, DC ) );
        else if( item )
        {
            if( item->IsNew() )
                GraphicItemBeginDraw( DC );
            else
                EndDrawGraphicItem( DC );
        }
        break;

    case ID_LIBEDIT_DELETE_ITEM_BUTT:
        item = LocateItemUsingCursor( aPosition );

        if( item )
        {
            deleteItem( DC, item );
        }
        else
        {
            DisplayCmpDoc();

            if( m_canvas->GetAbortRequest() )
                m_canvas->SetAbortRequest( false );
        }
        break;

    case ID_LIBEDIT_ANCHOR_ITEM_BUTT:
        SaveCopyInUndoList( part );
        PlaceAnchor();
        SetNoToolSelected();
        break;

    default:
        wxFAIL_MSG( wxString::Format( wxT( "Unhandled command ID %d" ), GetToolId() ) );
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        if( not_edited )
        {
            msg = AddHotkeyName( _( "Drag Rectangle Edge" ), g_Libedit_Hokeys_Descr, HK_DRAG );
            AddMenuItem( PopMenu, ID_POPUP_LIBEDIT_MODIFY_ITEM, msg,
                         KiBitmap( move_rectangle_xpm ) );
            msg = AddHotkeyName( _( "Delete Rectangle" ), g_Libedit_Hokeys_Descr, HK_DELETE );
            AddMenuItem( PopMenu, ID_POPUP_LIBEDIT_DELETE_ITEM, msg,
                         KiBitmap( delete_rectangle_xpm ) );
        }

        break;

    case LIB_TEXT_T:
        if( not_edited )
        {
            msg = AddHotkeyName( _( "Move Text" ), g_Libedit_Hokeys_Descr,
                                 HK_LIBEDIT_MOVE_GRAPHIC_ITEM );
            AddMenuItem( PopMenu, ID_POPUP_LIBEDIT_MOVE_ITEM_REQUEST, msg,
                         KiBitmap( move_text_xpm ) );
        }

        msg = AddHotkeyName( _( "Edit Text" ), g_Libedit_Hokeys_Descr, HK_EDIT );
        AddMenuItem( PopMenu, ID_POPUP_LIBEDIT_BODY_EDIT_ITEM, msg, KiBitmap( edit_text_xpm ) );

        msg = AddHotkeyName( _( "Rotate Text" ), g_Libedit_Hokeys_Descr, HK_ROTATE );
        AddMenuItem( PopMenu, ID_LIBEDIT_ROTATE_ITEM, msg, KiBitmap( edit_text_xpm ) );

        if( not_edited )
        {
            msg = AddHotkeyName( _( "Delete Text" ), g_Libedit_Hokeys_Descr, HK_DELETE );
            AddMenuItem( PopMenu, ID_POPUP_LIBEDIT_DELETE_ITEM, msg, KiBitmap( delete_text_xpm ) );
        }
        break;

    case LIB_POLYLINE_T:
        if( not_edited )
        {
            msg = AddHotkeyName( _( "Move Line" ), g_Libedit_Hokeys_Descr,
                                 HK_LIBEDIT_MOVE_GRAPHIC_ITEM );
            AddMenuItem( PopMenu, ID_POPUP_LIBEDIT_MOVE_ITEM_REQUEST, msg,
                         KiBitmap( move_line_xpm ) );
            msg = AddHotkeyName( _( "Drag Edge Point" ), g_Libedit_Hokeys_Descr, HK_DRAG );
            AddMenuItem( PopMenu, ID_POPUP_LIBEDIT_MODIFY_ITEM, msg, KiBitmap( move_line_xpm ) );
        }

        if( item->IsNew() )
        {
            AddMenuItem( PopMenu, ID_POPUP_LIBEDIT_END_CREATE_ITEM, _( "Line End" ),
                         KiBitmap( checked_ok_xpm ) );
        }

        msg = AddHotkeyName( _( "Edit Line Options" ), g_Libedit_Hokeys_Descr, HK_EDIT );
        AddMenuItem( PopMenu, ID_POPUP_LIBEDIT_BODY_EDIT_ITEM, msg,
                     KiBitmap( options_segment_xpm ) );

        if( not_edited )
        {
            msg = AddHotkeyName( _( "Delete Line " ), g_Libedit_Hokeys_Descr, HK_DELETE );
            AddMenuItem( PopMenu, ID_POPUP_LIBEDIT_DELETE_ITEM, msg,
                         KiBitmap( delete_segment_xpm ) );
        }

        if( item->IsNew() )
        {
            if( ( (LIB_POLYLINE*) item )->GetCornerCount() > 2 )
            {
                msg = AddHotkeyName( _( "Delete Segment" ), g_Libedit_Hokeys_Descr, HK_DELETE );
                AddMenuItem( PopMenu, ID_POPUP_LIBEDIT_DELETE_CURRENT_POLY_SEGMENT,
                             msg, KiBitmap( delete_segment_xpm ) );
            }
        }

        break;

    case LIB_FIELD_T:
        if( not_edited )
        {
            msg = AddHotkeyName( _( "Move Field" ), g_Libedit_Hokeys_Descr,
                                 HK_LIBEDIT_MOVE_GRAPHIC_ITEM );
            AddMenuItem( PopMenu, ID_POPUP_LIBEDIT_MOVE_ITEM_REQUEST, msg,
                         KiBitmap( move_field_xpm ) );
        }

        msg = AddHotkeyName( _( "Field Rotate" ), g_Libedit_Hokeys_Descr, HK_ROTATE );
        AddMenuItem( PopMenu, ID_LIBEDIT_ROTATE_ITEM, msg, KiBitmap( rotate_field_xpm ) );
        msg = AddHotkeyName( _( "Field Edit" ), g_Libedit_Hokeys_Descr, HK_EDIT );
        AddMenuItem( PopMenu, ID_POPUP_LIBEDIT_FIELD_EDIT_ITEM, msg, KiBitmap( edit_text_xpm ) );
        break;


    default:
        wxFAIL_MSG( wxString::Format( wxT( "Unknown library item type %d" ),
                                      item->Type() ) );
        m_drawItem = NULL;
        break;
    }

    PopMenu->AppendSeparator();
    return true;
}

/*
 * Called on a double click:
 *  If an editable item  (field, pin, graphic):
 *      Call the suitable dialog editor.
 */
void LIB_EDIT_FRAME::OnLeftDClick( wxDC* DC, const wxPoint& aPosition )
{
    LIB_PART*      part = GetCurPart();
    LIB_ITEM*      item = GetDrawItem();

    if( !part )
        return;

    if( !item || !item->InEditMode() )
    {   // We can locate an item
        item = LocateItemUsingCursor( aPosition, LIB_COLLECTOR::DoubleClickItems );

        if( item == NULL )
        {
            // The user canceled the disambiguation menu
            if( m_canvas->GetAbortRequest() )
                m_canvas->SetAbortRequest( false );
            else
            {
                // If there is only a random double-click, we allow the use to edit the part
                wxCommandEvent cmd( wxEVT_COMMAND_MENU_SELECTED );

                cmd.SetId( ID_LIBEDIT_GET_FRAME_EDIT_PART );
                GetEventHandler()->ProcessEvent( cmd );
            }
        }
    }

    if( item )
        SetMsgPanel( item );
    else
        return;

    m_canvas->SetIgnoreMouseEvents( true );
    bool not_edited = !item->InEditMode();

    switch( item->Type() )
    {
    case LIB_PIN_T:
        if( not_edited )
        {
            SetDrawItem( item );
            wxCommandEvent cmd( wxEVT_COMMAND_MENU_SELECTED );

            cmd.SetId( ID_LIBEDIT_EDIT_PIN );
            GetEventHandler()->ProcessEvent( cmd );
        }
        break;

    case LIB_ARC_T:
    case LIB_CIRCLE_T:
    case LIB_RECTANGLE_T:
        if( not_edited )
            EditGraphicSymbol( DC, item );
        break;

    case LIB_POLYLINE_T:
        if( not_edited )
            EditGraphicSymbol( DC, item );
        else if( item->IsNew() )
            EndDrawGraphicItem( DC );
        break;

    case LIB_TEXT_T:
        if( not_edited )
            EditSymbolText( DC, item );
        break;

    case LIB_FIELD_T:
        if( not_edited )
            EditField( (LIB_FIELD*) item );
        break;

    default:
        wxFAIL_MSG( wxT( "Unhandled item <" ) + item->GetClass() + wxT( ">" ) );
        break;
    }

    m_canvas->MoveCursorToCrossHair();
    m_canvas->SetIgnoreMouseEvents( false );
}