C++ BOARD_ITEM::UnLink方法代码示例

void PCB_EDIT_FRAME::Block_Delete()
{
    OnModify();
    SetCurItem( NULL );

    PICKED_ITEMS_LIST* itemsList = &GetScreen()->m_BlockLocate.GetItems();
    itemsList->m_Status = UR_DELETED;

    // unlink items and clear flags
    for( unsigned ii = 0; ii < itemsList->GetCount(); ii++ )
    {
        BOARD_ITEM* item = (BOARD_ITEM*) itemsList->GetPickedItem( ii );
        itemsList->SetPickedItemStatus( UR_DELETED, ii );
        GetBoard()->GetConnectivity()->Remove( item );

        switch( item->Type() )
        {
        case PCB_MODULE_T:
        {
            MODULE* module = (MODULE*) item;
            module->ClearFlags();
            module->UnLink();
            m_Pcb->m_Status_Pcb = 0;
        }
        break;

        case PCB_ZONE_AREA_T:     // a zone area
            m_Pcb->Remove( item );
            break;

        case PCB_LINE_T:          // a segment not on copper layers
        case PCB_TEXT_T:          // a text on a layer
        case PCB_TRACE_T:         // a track segment (segment on a copper layer)
        case PCB_VIA_T:           // a via (like track segment on a copper layer)
        case PCB_DIMENSION_T:     // a dimension (graphic item)
        case PCB_TARGET_T:        // a target (graphic item)
            item->UnLink();
            break;

        // These items are deleted, but not put in undo list
        case PCB_MARKER_T:                  // a marker used to show something
        case PCB_ZONE_T:                     // SEG_ZONE items are now deprecated
            item->UnLink();
            itemsList->RemovePicker( ii );
            ii--;
            item->DeleteStructure();
            break;

        default:
            wxMessageBox( wxT( "PCB_EDIT_FRAME::Block_Delete( ) error: unexpected type" ) );
            break;
        }
    }

    SaveCopyInUndoList( *itemsList, UR_DELETED );

    Compile_Ratsnest( NULL, true );
    m_canvas->Refresh( true );
}

void PCB_EDIT_FRAME::Delete_Drawings_All_Layer( LAYER_ID aLayer )
{
    if( IsCopperLayer( aLayer ) )
    {
        DisplayError( this, _( "Copper layer global delete not allowed!" ) );
        return;
    }

    wxString msg = wxString::Format(
        _( "Delete everything on layer %s?" ),
        GetChars( GetBoard()->GetLayerName( aLayer ) ) );

    if( !IsOK( this, msg ) )
        return;

    PICKED_ITEMS_LIST   pickList;
    ITEM_PICKER         picker( NULL, UR_DELETED );
    BOARD_ITEM*         PtNext;

    for( BOARD_ITEM* item = GetBoard()->m_Drawings;  item;  item = PtNext )
    {
        PtNext = item->Next();

        switch( item->Type() )
        {
        case PCB_LINE_T:
        case PCB_TEXT_T:
        case PCB_DIMENSION_T:
        case PCB_TARGET_T:
            if( item->GetLayer() == aLayer )
            {
                item->UnLink();
                picker.SetItem( item );
                pickList.PushItem( picker );
            }

            break;

        default:
        {
            wxString msg;
            msg.Printf( wxT("Delete_Drawings_All_Layer() error: unknown type %d"),
                        item->Type() );
            wxMessageBox( msg );
            break;
        }
        }
    }

    if( pickList.GetCount() )
    {
        OnModify();
        SaveCopyInUndoList(pickList, UR_DELETED);
    }
}

void DIALOG_GLOBAL_DELETION::AcceptPcbDelete( )
{
    bool gen_rastnest = false;

    m_Parent->SetCurItem( NULL );

    if( m_DelAlls->GetValue() )
    {
        m_Parent->Clear_Pcb( true );
    }
    else
    {
        if( !IsOK( this, _( "Are you sure you want to delete the selected items?" ) ) )
            return;

        BOARD*            pcb = m_Parent->GetBoard();
        PICKED_ITEMS_LIST pickersList;
        ITEM_PICKER       itemPicker( NULL, UR_DELETED );
        BOARD_ITEM*       item;
        BOARD_ITEM*       nextitem;
        RN_DATA*          ratsnest = pcb->GetRatsnest();

        LSET layers_filter = LSET().set();

        if( m_rbLayersOption->GetSelection() != 0 )     // Use current layer only
            layers_filter = LSET( ToLAYER_ID( m_currentLayer ) );

        if( m_DelZones->GetValue() )
        {
            int area_index = 0;
            item = pcb->GetArea( area_index );

            while( item )
            {
                if( layers_filter[item->GetLayer()] )
                {
                    itemPicker.SetItem( item );
                    pickersList.PushItem( itemPicker );
                    pcb->Remove( item );
                    item->ViewRelease();
                    ratsnest->Remove( item );
                    gen_rastnest = true;
                }
                else
                {
                    area_index++;
                }

                item = pcb->GetArea( area_index );
            }
        }

        if( m_DelDrawings->GetValue() || m_DelBoardEdges->GetValue() )
        {
            LSET masque_layer;

            if( m_DelDrawings->GetValue() )
                 masque_layer = LSET::AllNonCuMask().set( Edge_Cuts, false );

            if( m_DelBoardEdges->GetValue() )
                 masque_layer.set( Edge_Cuts );

            masque_layer &= layers_filter;

            for( item = pcb->m_Drawings; item; item = nextitem )
            {
                nextitem = item->Next();

                if( item->Type() == PCB_LINE_T  &&  masque_layer[item->GetLayer()] )
                {
                    itemPicker.SetItem( item );
                    pickersList.PushItem( itemPicker );
                    item->ViewRelease();
                    item->UnLink();
                }
            }
        }

        if( m_DelTexts->GetValue() )
        {
            LSET del_text_layers = layers_filter;

            for( item = pcb->m_Drawings; item; item = nextitem )
            {
                nextitem = item->Next();

                if( item->Type() == PCB_TEXT_T  &&  del_text_layers[item->GetLayer()] )
                {
                    itemPicker.SetItem( item );
                    pickersList.PushItem( itemPicker );
                    item->ViewRelease();
                    item->UnLink();
                }
            }
        }

        if( m_DelModules->GetValue() )
        {
            for( item = pcb->m_Modules; item; item = nextitem )
            {
//.........这里部分代码省略.........