Ejemplo n.º 1
0
void SCH_EDIT_FRAME::OrientComponent( COMPONENT_ORIENTATION_T aOrientation )
{
    SCH_SCREEN* screen = GetScreen();
    SCH_ITEM* item = screen->GetCurItem();

    wxCHECK_RET( item != NULL && item->Type() == SCH_COMPONENT_T,
                 wxT( "Cannot change orientation of invalid schematic item." ) );

    SCH_COMPONENT* component = (SCH_COMPONENT*) item;

    m_canvas->MoveCursorToCrossHair();

    if( item->GetFlags() == 0 )
        SetUndoItem( item );

    INSTALL_UNBUFFERED_DC( dc, m_canvas );

    component->SetOrientation( aOrientation );

    m_canvas->CrossHairOn( &dc );

    if( item->GetFlags() == 0 )
    {
        addCurrentItemToList();
        SchematicCleanUp( true );
    }

    if( GetScreen()->TestDanglingEnds() )
        m_canvas->Refresh();

    OnModify();
}
SCH_BUS_WIRE_ENTRY* SCH_EDIT_FRAME::CreateBusWireEntry()
{
    // Create and place a new bus entry at cursor position
    SCH_BUS_WIRE_ENTRY* busEntry = new SCH_BUS_WIRE_ENTRY( GetCrossHairPosition(), s_LastShape );

    busEntry->SetFlags( IS_NEW );
    GetScreen()->SetCurItem( busEntry );
    addCurrentItemToList();
    return busEntry;
}
Ejemplo n.º 3
0
void SCH_EDIT_FRAME::Process_Special_Functions( wxCommandEvent& event )
{
    int         id = event.GetId();
    wxPoint     pos;
    SCH_SCREEN* screen = GetScreen();
    SCH_ITEM*   item = screen->GetCurItem();

    pos = wxGetMousePosition();

    pos.y += 20;

    // If needed, stop the current command and deselect current tool
    switch( id )
    {
    case wxID_CUT:
    case wxID_COPY:
    case ID_POPUP_CANCEL_CURRENT_COMMAND:
    case ID_POPUP_SCH_ENTRY_SELECT_SLASH:
    case ID_POPUP_SCH_ENTRY_SELECT_ANTISLASH:
    case ID_POPUP_SCH_BEGIN_WIRE:
    case ID_POPUP_SCH_BEGIN_BUS:
    case ID_POPUP_END_LINE:
    case ID_POPUP_SCH_SET_SHAPE_TEXT:
    case ID_POPUP_SCH_CLEANUP_SHEET:
    case ID_POPUP_SCH_END_SHEET:
    case ID_POPUP_SCH_RESIZE_SHEET:
    case ID_POPUP_IMPORT_GLABEL:
    case ID_POPUP_SCH_INIT_CMP:
    case ID_POPUP_SCH_DISPLAYDOC_CMP:
    case ID_POPUP_SCH_EDIT_CONVERT_CMP:
    case ID_POPUP_DELETE_BLOCK:
    case ID_POPUP_PLACE_BLOCK:
    case ID_POPUP_ZOOM_BLOCK:
    case ID_POPUP_DRAG_BLOCK:
    case ID_POPUP_COPY_BLOCK:
    case ID_POPUP_SCH_DELETE_NODE:
    case ID_POPUP_SCH_DELETE_CONNECTION:
    case ID_POPUP_SCH_ENTER_SHEET:
    case ID_POPUP_SCH_LEAVE_SHEET:
    case ID_POPUP_SCH_ADD_JUNCTION:
    case ID_POPUP_SCH_ADD_LABEL:
    case ID_POPUP_SCH_GETINFO_MARKER:

        /* At this point: Do nothing. these commands do not need to stop the
         * current command (mainly a block command) or reset the current state
         * They will be executed later, in next switch structure.
         */
        break;

    case ID_POPUP_SCH_DELETE_CMP:
    case ID_POPUP_SCH_DELETE:

        // Stop the current command (if any) but keep the current tool
        m_canvas->EndMouseCapture();
        break;

    default:

        // Stop the current command and deselect the current tool
        m_canvas->EndMouseCapture( ID_NO_TOOL_SELECTED, m_canvas->GetDefaultCursor() );
        break;
    }

    INSTALL_UNBUFFERED_DC( dc, m_canvas );
    item = screen->GetCurItem();    // Can be modified by previous calls.

    switch( id )
    {
    case ID_HIERARCHY:
        InstallHierarchyFrame( &dc, pos );
        SetRepeatItem( NULL );
        break;

    case wxID_CUT:
        if( screen->m_BlockLocate.GetCommand() != BLOCK_MOVE )
            break;

        screen->m_BlockLocate.SetCommand( BLOCK_DELETE );
        screen->m_BlockLocate.SetMessageBlock( this );
        HandleBlockEnd( &dc );
        SetRepeatItem( NULL );
        SetSheetNumberAndCount();
        break;

    case wxID_PASTE:
        HandleBlockBegin( &dc, BLOCK_PASTE, GetCrossHairPosition() );
        break;

    case ID_POPUP_SCH_ENTRY_SELECT_SLASH:
        m_canvas->MoveCursorToCrossHair();
        SetBusEntryShape( &dc, dynamic_cast<SCH_BUS_ENTRY_BASE*>( item ), '/' );
        break;

    case ID_POPUP_SCH_ENTRY_SELECT_ANTISLASH:
        m_canvas->MoveCursorToCrossHair();
        SetBusEntryShape( &dc, dynamic_cast<SCH_BUS_ENTRY_BASE*>( item ), '\\' );
        break;

    case ID_POPUP_CANCEL_CURRENT_COMMAND:
        if( m_canvas->IsMouseCaptured() )
        {
            m_canvas->EndMouseCapture();
            SetToolID( GetToolId(), m_canvas->GetCurrentCursor(), wxEmptyString );
        }
        else
        {
            SetToolID( ID_NO_TOOL_SELECTED, m_canvas->GetDefaultCursor(), wxEmptyString );
        }

        break;

    case ID_POPUP_END_LINE:
        m_canvas->MoveCursorToCrossHair();
        EndSegment( &dc );
        break;

    case ID_POPUP_SCH_BEGIN_WIRE:
        m_canvas->MoveCursorToCrossHair();
        OnLeftClick( &dc, GetCrossHairPosition() );
        break;

    case ID_POPUP_SCH_BEGIN_BUS:
        m_canvas->MoveCursorToCrossHair();
        OnLeftClick( &dc, GetCrossHairPosition() );
        break;

    case ID_POPUP_SCH_SET_SHAPE_TEXT:
        // Not used
        break;

    case ID_POPUP_SCH_DELETE_NODE:
    case ID_POPUP_SCH_DELETE_CONNECTION:
        m_canvas->MoveCursorToCrossHair();
        DeleteConnection( id == ID_POPUP_SCH_DELETE_CONNECTION );
        screen->SetCurItem( NULL );
        SetRepeatItem( NULL );
        screen->TestDanglingEnds( m_canvas, &dc );
        m_canvas->Refresh();
        break;

    case ID_POPUP_SCH_BREAK_WIRE:
    {
        DLIST< SCH_ITEM > oldWires;

        oldWires.SetOwnership( false );      // Prevent DLIST for deleting items in destructor.
        m_canvas->MoveCursorToCrossHair();
        screen->ExtractWires( oldWires, true );
        screen->BreakSegment( GetCrossHairPosition() );

        if( oldWires.GetCount() != 0 )
        {
            PICKED_ITEMS_LIST oldItems;

            oldItems.m_Status = UR_WIRE_IMAGE;

            while( oldWires.GetCount() != 0 )
            {
                ITEM_PICKER picker = ITEM_PICKER( oldWires.PopFront(), UR_WIRE_IMAGE );
                oldItems.PushItem( picker );
            }

            SaveCopyInUndoList( oldItems, UR_WIRE_IMAGE );
        }

        screen->TestDanglingEnds( m_canvas, &dc );
    }
    break;

    case ID_POPUP_SCH_DELETE_CMP:
    case ID_POPUP_SCH_DELETE:
        if( item == NULL )
            break;

        DeleteItem( item );
        screen->SetCurItem( NULL );
        SetRepeatItem( NULL );
        screen->TestDanglingEnds( m_canvas, &dc );
        SetSheetNumberAndCount();
        OnModify();
        break;

    case ID_POPUP_SCH_END_SHEET:
        m_canvas->MoveCursorToCrossHair();
        addCurrentItemToList( &dc );
        break;

    case ID_POPUP_SCH_RESIZE_SHEET:
        ReSizeSheet( (SCH_SHEET*) item, &dc );
        screen->TestDanglingEnds( m_canvas, &dc );
        break;

    case ID_POPUP_IMPORT_GLABEL:
        if( item != NULL && item->Type() == SCH_SHEET_T )
            screen->SetCurItem( ImportSheetPin( (SCH_SHEET*) item, &dc ) );
        break;

    case ID_POPUP_SCH_CLEANUP_SHEET:
        if( item != NULL && item->Type() == SCH_SHEET_T )
        {
            SCH_SHEET* sheet = (SCH_SHEET*) item;

            if( !sheet->HasUndefinedPins() )
            {
                DisplayInfoMessage( this,
                                    _( "There are no undefined labels in this sheet to clean up." ) );
                return;
            }

            if( !IsOK( this, _( "Do you wish to cleanup this sheet?" ) ) )
                return;

            /* Save sheet in undo list before cleaning up unreferenced hierarchical labels. */
            SaveCopyInUndoList( sheet, UR_CHANGED );
            sheet->CleanupSheet();
            OnModify();
            m_canvas->RefreshDrawingRect( sheet->GetBoundingBox() );
        }
        break;

    case ID_POPUP_SCH_INIT_CMP:
        m_canvas->MoveCursorToCrossHair();
        break;

    case ID_POPUP_SCH_EDIT_CONVERT_CMP:

        // Ensure the struct is a component (could be a struct of a component, like Field, text..)
        if( item && item->Type() == SCH_COMPONENT_T )
        {
            m_canvas->MoveCursorToCrossHair();
            ConvertPart( (SCH_COMPONENT*) item, &dc );
        }

        break;

    case ID_POPUP_SCH_DISPLAYDOC_CMP:

        // Ensure the struct is a component (could be a piece of a component, like Field, text..)
        if( item && item->Type() == SCH_COMPONENT_T )
        {
            LIB_ALIAS* LibEntry;
            LibEntry = CMP_LIBRARY::FindLibraryEntry( ( (SCH_COMPONENT*) item )->GetLibName() );

            if( LibEntry && LibEntry->GetDocFileName() != wxEmptyString )
            {
                GetAssociatedDocument( this, LibEntry->GetDocFileName(),
                                       &wxGetApp().GetLibraryPathList() );
            }
        }
        break;

    case ID_POPUP_SCH_ENTER_SHEET:

        if( item && (item->Type() == SCH_SHEET_T) )
        {
            m_CurrentSheet->Push( (SCH_SHEET*) item );
            DisplayCurrentSheet();
        }

        break;

    case ID_POPUP_SCH_LEAVE_SHEET:
        m_CurrentSheet->Pop();
        DisplayCurrentSheet();
        break;

    case wxID_COPY:         // really this is a Save block for paste
        screen->m_BlockLocate.SetCommand( BLOCK_SAVE );
        screen->m_BlockLocate.SetMessageBlock( this );
        HandleBlockEnd( &dc );
        break;

    case ID_POPUP_PLACE_BLOCK:
        m_canvas->SetAutoPanRequest( false );
        m_canvas->MoveCursorToCrossHair();
        HandleBlockPlace( &dc );
        break;

    case ID_POPUP_ZOOM_BLOCK:
        screen->m_BlockLocate.SetCommand( BLOCK_ZOOM );
        screen->m_BlockLocate.SetMessageBlock( this );
        HandleBlockEnd( &dc );
        break;

    case ID_POPUP_DELETE_BLOCK:
        m_canvas->MoveCursorToCrossHair();
        screen->m_BlockLocate.SetCommand( BLOCK_DELETE );
        screen->m_BlockLocate.SetMessageBlock( this );
        HandleBlockEnd( &dc );
        SetSheetNumberAndCount();
        break;

    case ID_POPUP_COPY_BLOCK:
        m_canvas->MoveCursorToCrossHair();
        screen->m_BlockLocate.SetCommand( BLOCK_COPY );
        screen->m_BlockLocate.SetMessageBlock( this );
        HandleBlockEnd( &dc );
        break;

    case ID_POPUP_DRAG_BLOCK:
        m_canvas->MoveCursorToCrossHair();
        screen->m_BlockLocate.SetCommand( BLOCK_DRAG );
        screen->m_BlockLocate.SetMessageBlock( this );
        HandleBlockEnd( &dc );
        break;

    case ID_POPUP_SCH_ADD_JUNCTION:
        m_canvas->MoveCursorToCrossHair();
        screen->SetCurItem( AddJunction( &dc, GetCrossHairPosition(), true ) );
        screen->TestDanglingEnds( m_canvas, &dc );
        screen->SetCurItem( NULL );
        break;

    case ID_POPUP_SCH_ADD_LABEL:
    case ID_POPUP_SCH_ADD_GLABEL:
        screen->SetCurItem( CreateNewText( &dc, id == ID_POPUP_SCH_ADD_LABEL ?
                                           LAYER_LOCLABEL : LAYER_GLOBLABEL ) );
        item = screen->GetCurItem();

        if( item )
            addCurrentItemToList( &dc );

        break;

    case ID_POPUP_SCH_GETINFO_MARKER:
        if( item && item->Type() == SCH_MARKER_T )
            ( (SCH_MARKER*) item )->DisplayMarkerInfo( this );

        break;

    default:        // Log error:
        wxFAIL_MSG( wxString::Format( wxT( "Cannot process command event ID %d" ),
                                      event.GetId() ) );
        break;
    }

    // End switch ( id )    (Command execution)

    if( GetToolId() == ID_NO_TOOL_SELECTED )
        SetRepeatItem( NULL );
}
void SCH_EDIT_FRAME::OnLeftClick( wxDC* aDC, const wxPoint& aPosition )
{
    SCH_ITEM*   item = GetScreen()->GetCurItem();
    wxPoint     gridPosition = GetGridPosition( aPosition );

    if( ( GetToolId() == ID_NO_TOOL_SELECTED ) || ( item && item->GetFlags() ) )
    {
        m_canvas->SetAutoPanRequest( false );
        SetRepeatItem( NULL );

        if( item && item->GetFlags() )
        {
            switch( item->Type() )
            {
            case SCH_LABEL_T:
            case SCH_GLOBAL_LABEL_T:
            case SCH_HIERARCHICAL_LABEL_T:
            case SCH_TEXT_T:
            case SCH_SHEET_PIN_T:
            case SCH_SHEET_T:
            case SCH_BUS_WIRE_ENTRY_T:
            case SCH_BUS_BUS_ENTRY_T:
            case SCH_JUNCTION_T:
            case SCH_COMPONENT_T:
            case SCH_FIELD_T:
            case SCH_BITMAP_T:
            case SCH_NO_CONNECT_T:
                addCurrentItemToList();
                return;

            case SCH_LINE_T:    // May already be drawing segment.
                break;

            default:
                wxFAIL_MSG( wxT( "SCH_EDIT_FRAME::OnLeftClick error.  Item type <" ) +
                            item->GetClass() + wxT( "> is already being edited." ) );
                item->ClearFlags();
                break;
            }
        }
        else
        {
            item = LocateAndShowItem( aPosition );
        }
    }

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

    case ID_HIGHLIGHT:
        HighlightConnectionAtPosition( aPosition );
        break;

    case ID_HIERARCHY_PUSH_POP_BUTT:
        if( ( item && item->GetFlags() ) || ( g_RootSheet->CountSheets() == 0 ) )
            break;

        item = LocateAndShowItem( aPosition, SCH_COLLECTOR::SheetsOnly );

        if( item )  // The user has clicked on a sheet: this is an enter sheet command
        {
            m_CurrentSheet->push_back( (SCH_SHEET*) item );
            DisplayCurrentSheet();
        }
        else if( m_CurrentSheet->Last() != g_RootSheet )
        {   // The user has clicked ouside a sheet:this is an leave sheet command
            m_CurrentSheet->pop_back();
            DisplayCurrentSheet();
        }
        break;

    case ID_NOCONN_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            if( GetScreen()->GetItem( gridPosition, 0, SCH_NO_CONNECT_T ) == NULL )
            {
                SCH_NO_CONNECT*  no_connect = AddNoConnect( aDC, gridPosition );
                SetRepeatItem( no_connect );
                GetScreen()->SetCurItem( no_connect );
                m_canvas->SetAutoPanRequest( true );
            }
        }
        else
        {
            addCurrentItemToList();
        }
        break;

    case ID_JUNCTION_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            if( GetScreen()->GetItem( gridPosition, 0, SCH_JUNCTION_T ) == NULL )
            {
                SCH_JUNCTION* junction = AddJunction( aDC, gridPosition, true );
                SetRepeatItem( junction );
                GetScreen()->SetCurItem( junction );
                m_canvas->SetAutoPanRequest( true );
            }
        }
        else
        {
            addCurrentItemToList();
        }
        break;

    case ID_WIRETOBUS_ENTRY_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            CreateBusWireEntry();
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList();
        }
        break;

    case ID_BUSTOBUS_ENTRY_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            CreateBusBusEntry();
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList();
        }
        break;

    case ID_SCHEMATIC_DELETE_ITEM_BUTT:
        DeleteItemAtCrossHair( aDC );
        break;

    case ID_WIRE_BUTT:
        BeginSegment( aDC, LAYER_WIRE );
        m_canvas->SetAutoPanRequest( true );
        break;

    case ID_BUS_BUTT:
        BeginSegment( aDC, LAYER_BUS );
        m_canvas->SetAutoPanRequest( true );
        break;

    case ID_LINE_COMMENT_BUTT:
        BeginSegment( aDC, LAYER_NOTES );
        m_canvas->SetAutoPanRequest( true );
        break;

    case ID_TEXT_COMMENT_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            GetScreen()->SetCurItem( CreateNewText( aDC, LAYER_NOTES ) );
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList();
        }
        break;

    case ID_ADD_IMAGE_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            GetScreen()->SetCurItem( CreateNewImage( aDC ) );
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList();
        }
        break;

    case ID_LABEL_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            GetScreen()->SetCurItem( CreateNewText( aDC, LAYER_LOCLABEL ) );
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList();
        }
        break;

    case ID_GLABEL_BUTT:
    case ID_HIERLABEL_BUTT:
        if( (item == NULL) || (item->GetFlags() == 0) )
        {
            if( GetToolId() == ID_GLABEL_BUTT )
                GetScreen()->SetCurItem( CreateNewText( aDC, LAYER_GLOBLABEL ) );

            if( GetToolId() == ID_HIERLABEL_BUTT )
                GetScreen()->SetCurItem( CreateNewText( aDC, LAYER_HIERLABEL ) );

            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList();
        }
        break;

    case ID_SHEET_SYMBOL_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            item = CreateSheet( aDC );

            if( item != NULL )
            {
                GetScreen()->SetCurItem( item );
                m_canvas->SetAutoPanRequest( true );
            }
        }
        else
        {
            addCurrentItemToList();
        }
        break;

    case ID_IMPORT_HLABEL_BUTT:
    case ID_SHEET_PIN_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
            item = LocateAndShowItem( aPosition, SCH_COLLECTOR::SheetsAndSheetLabels );

        if( item == NULL )
            break;

        if( (item->Type() == SCH_SHEET_T) && (item->GetFlags() == 0) )
        {
            if( GetToolId() == ID_IMPORT_HLABEL_BUTT )
                GetScreen()->SetCurItem( ImportSheetPin( (SCH_SHEET*) item, aDC ) );
            else
                GetScreen()->SetCurItem( CreateSheetPin( (SCH_SHEET*) item, aDC ) );
        }
        else if( (item->Type() == SCH_SHEET_PIN_T) && (item->GetFlags() != 0) )
        {
            addCurrentItemToList();
        }
        break;

    case ID_SCH_PLACE_COMPONENT:
        if( (item == NULL) || (item->GetFlags() == 0) )
        {
            GetScreen()->SetCurItem( Load_Component( aDC, NULL,
                                                     s_CmpNameList, s_CmpLastUnit, true ) );
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList();
        }
        break;

    case ID_PLACE_POWER_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            SCHLIB_FILTER filter;
            filter.FilterPowerParts( true );
            GetScreen()->SetCurItem( Load_Component( aDC, &filter,
                                                     s_PowerNameList, s_LastPowerUnit, false ) );
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList();
        }
        break;

#ifdef KICAD_SPICE
    case ID_SIM_PROBE:
        {
            const KICAD_T wiresAndComponents[] = { SCH_LINE_T, SCH_COMPONENT_T, SCH_SHEET_PIN_T };
            item = LocateAndShowItem( aPosition, wiresAndComponents );

            if( !item )
                break;

            NETLIST_OBJECT_LIST* netlist = BuildNetListBase();

            for( NETLIST_OBJECT* obj : *netlist )
            {
                if( obj->m_Comp == item )
                {
                    SIM_PLOT_FRAME* simFrame = (SIM_PLOT_FRAME*) Kiway().Player( FRAME_SIMULATOR, false );

                    if( simFrame )
                        simFrame->AddVoltagePlot( obj->GetNetName() );

                    break;
                }
            }
        }
        break;

    case ID_SIM_TUNE:
        {
            const KICAD_T fieldsAndComponents[] = { SCH_COMPONENT_T, SCH_FIELD_T };
            item = LocateAndShowItem( aPosition, fieldsAndComponents );

            if( !item )
                return;

            if( item->Type() != SCH_COMPONENT_T )
            {
                item = static_cast<SCH_ITEM*>( item->GetParent() );

                if( item->Type() != SCH_COMPONENT_T )
                    return;
            }

            SIM_PLOT_FRAME* simFrame = (SIM_PLOT_FRAME*) Kiway().Player( FRAME_SIMULATOR, false );

            if( simFrame )
                simFrame->AddTuner( static_cast<SCH_COMPONENT*>( item ) );
        }
        break;
#endif /* KICAD_SPICE */

    default:
        SetToolID( ID_NO_TOOL_SELECTED, m_canvas->GetDefaultCursor(), wxEmptyString );
        wxFAIL_MSG( wxT( "SCH_EDIT_FRAME::OnLeftClick invalid tool ID <" ) +
                    wxString::Format( wxT( "%d> selected." ), GetToolId() ) );
    }
}
Ejemplo n.º 5
0
void SCH_EDIT_FRAME::OnLeftClick( wxDC* aDC, const wxPoint& aPosition )
{
    SCH_ITEM*   item = GetScreen()->GetCurItem();
    wxPoint     gridPosition = GetGridPosition( aPosition );

    if( ( GetToolId() == ID_NO_TOOL_SELECTED ) || ( item && item->GetFlags() ) )
    {
        m_canvas->SetAutoPanRequest( false );
        SetRepeatItem( NULL );

        if( item && item->GetFlags() )
        {
            switch( item->Type() )
            {
            case SCH_LABEL_T:
            case SCH_GLOBAL_LABEL_T:
            case SCH_HIERARCHICAL_LABEL_T:
            case SCH_TEXT_T:
            case SCH_SHEET_PIN_T:
            case SCH_SHEET_T:
            case SCH_BUS_WIRE_ENTRY_T:
            case SCH_BUS_BUS_ENTRY_T:
            case SCH_JUNCTION_T:
            case SCH_COMPONENT_T:
            case SCH_FIELD_T:
            case SCH_BITMAP_T:
            case SCH_NO_CONNECT_T:
                addCurrentItemToList( aDC );
                return;

            case SCH_LINE_T:    // May already be drawing segment.
                break;

            default:
                wxFAIL_MSG( wxT( "SCH_EDIT_FRAME::OnLeftClick error.  Item type <" ) +
                            item->GetClass() + wxT( "> is already being edited." ) );
                item->ClearFlags();
                break;
            }
        }
        else
        {
            item = LocateAndShowItem( aPosition );
        }
    }

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

    case ID_HIERARCHY_PUSH_POP_BUTT:
        if( ( item && item->GetFlags() ) || ( g_RootSheet->CountSheets() == 0 ) )
            break;

        item = LocateAndShowItem( aPosition, SCH_COLLECTOR::SheetsOnly );

        if( item )  // The user has clicked on a sheet: this is an enter sheet command
        {
            m_CurrentSheet->Push( (SCH_SHEET*) item );
            DisplayCurrentSheet();
        }
        else if( m_CurrentSheet->Last() != g_RootSheet )
        {   // The user has clicked ouside a sheet:this is an leave sheet command
            m_CurrentSheet->Pop();
            DisplayCurrentSheet();
        }
        break;

    case ID_NOCONN_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            if( false == GetScreen()->GetItem( gridPosition, 0, SCH_NO_CONNECT_T ) )
            {
                SCH_NO_CONNECT*  no_connect = AddNoConnect( aDC, gridPosition );
                SetRepeatItem( no_connect );
                GetScreen()->SetCurItem( no_connect );
                m_canvas->SetAutoPanRequest( true );
            }
        }
        else
        {
            addCurrentItemToList( aDC );
        }
        break;

    case ID_JUNCTION_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            if( false == GetScreen()->GetItem( gridPosition, 0, SCH_JUNCTION_T ) )
            {
                SCH_JUNCTION* junction = AddJunction( aDC, gridPosition, true );
                SetRepeatItem( junction );
                GetScreen()->SetCurItem( junction );
                m_canvas->SetAutoPanRequest( true );
            }
        }
        else
        {
            addCurrentItemToList( aDC );
        }
        break;

    case ID_WIRETOBUS_ENTRY_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            CreateBusWireEntry( aDC );
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList( aDC );
        }
        break;

    case ID_BUSTOBUS_ENTRY_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            CreateBusBusEntry( aDC );
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList( aDC );
        }
        break;

    case ID_SCHEMATIC_DELETE_ITEM_BUTT:
        DeleteItemAtCrossHair( aDC );
        break;

    case ID_WIRE_BUTT:
        BeginSegment( aDC, LAYER_WIRE );
        m_canvas->SetAutoPanRequest( true );
        break;

    case ID_BUS_BUTT:
        BeginSegment( aDC, LAYER_BUS );
        m_canvas->SetAutoPanRequest( true );
        break;

    case ID_LINE_COMMENT_BUTT:
        BeginSegment( aDC, LAYER_NOTES );
        m_canvas->SetAutoPanRequest( true );
        break;

    case ID_TEXT_COMMENT_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            GetScreen()->SetCurItem( CreateNewText( aDC, LAYER_NOTES ) );
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList( aDC );
        }
        break;

    case ID_ADD_IMAGE_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            GetScreen()->SetCurItem( CreateNewImage( aDC ) );
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList( aDC );
        }
        break;

    case ID_LABEL_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            GetScreen()->SetCurItem( CreateNewText( aDC, LAYER_LOCLABEL ) );
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList( aDC );
        }
        break;

    case ID_GLABEL_BUTT:
    case ID_HIERLABEL_BUTT:
        if( (item == NULL) || (item->GetFlags() == 0) )
        {
            if( GetToolId() == ID_GLABEL_BUTT )
                GetScreen()->SetCurItem( CreateNewText( aDC, LAYER_GLOBLABEL ) );

            if( GetToolId() == ID_HIERLABEL_BUTT )
                GetScreen()->SetCurItem( CreateNewText( aDC, LAYER_HIERLABEL ) );

            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList( aDC );
        }
        break;

    case ID_SHEET_SYMBOL_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            item = CreateSheet( aDC );

            if( item != NULL )
            {
                GetScreen()->SetCurItem( item );
                m_canvas->SetAutoPanRequest( true );
            }
        }
        else
        {
            addCurrentItemToList( aDC );
        }
        break;

    case ID_IMPORT_HLABEL_BUTT:
    case ID_SHEET_PIN_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
            item = LocateAndShowItem( aPosition, SCH_COLLECTOR::SheetsAndSheetLabels );

        if( item == NULL )
            break;

        if( (item->Type() == SCH_SHEET_T) && (item->GetFlags() == 0) )
        {
            if( GetToolId() == ID_IMPORT_HLABEL_BUTT )
                GetScreen()->SetCurItem( ImportSheetPin( (SCH_SHEET*) item, aDC ) );
            else
                GetScreen()->SetCurItem( CreateSheetPin( (SCH_SHEET*) item, aDC ) );
        }
        else if( (item->Type() == SCH_SHEET_PIN_T) && (item->GetFlags() != 0) )
        {
            addCurrentItemToList( aDC );
        }
        break;

    case ID_SCH_PLACE_COMPONENT:
        if( (item == NULL) || (item->GetFlags() == 0) )
        {
            GetScreen()->SetCurItem( Load_Component( aDC, wxEmptyString,
                                                     s_CmpNameList, s_CmpLastUnit, true ) );
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList( aDC );
        }
        break;

    case ID_PLACE_POWER_BUTT:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            GetScreen()->SetCurItem( Load_Component( aDC, wxT( "power" ),
                                                     s_PowerNameList, s_LastPowerUnit, false ) );
            m_canvas->SetAutoPanRequest( true );
        }
        else
        {
            addCurrentItemToList( aDC );
        }
        break;

    default:
        SetToolID( ID_NO_TOOL_SELECTED, m_canvas->GetDefaultCursor(), wxEmptyString );
        wxFAIL_MSG( wxT( "SCH_EDIT_FRAME::OnLeftClick invalid tool ID <" ) +
                    wxString::Format( wxT( "%d> selected." ), GetToolId() ) );
    }
}