bool PCB_EDIT_FRAME::OnHotkeyPlaceItem( wxDC* aDC )
{
    BOARD_ITEM* item = GetCurItem();
    bool no_tool = GetToolId() == ID_NO_TOOL_SELECTED;
    bool itemCurrentlyEdited = item && item->GetFlags();

    m_canvas->SetAutoPanRequest( false );

    if( itemCurrentlyEdited )
    {
        m_canvas->SetIgnoreMouseEvents( true );
        m_canvas->CrossHairOff( aDC );

        switch( item->Type() )
        {
        case PCB_TRACE_T:
        case PCB_VIA_T:
            if( item->IsDragging() )
                PlaceDraggedOrMovedTrackSegment( static_cast<TRACK*>( item ), aDC );

            break;

        case PCB_TEXT_T:
            Place_Texte_Pcb( static_cast<TEXTE_PCB*>( item ), aDC );
            break;

        case PCB_MODULE_TEXT_T:
            PlaceTexteModule( static_cast<TEXTE_MODULE*>( item ), aDC );
            break;

        case PCB_PAD_T:
            PlacePad( static_cast<D_PAD*>( item ), aDC );
            break;

        case PCB_MODULE_T:
            PlaceModule( static_cast<MODULE*>( item ), aDC );
            break;

        case PCB_TARGET_T:
            PlaceTarget( static_cast<PCB_TARGET*>( item ), aDC );
            break;

        case PCB_LINE_T:
            if( no_tool )   // when no tools: existing item moving.
                Place_DrawItem( static_cast<DRAWSEGMENT*>( item ), aDC );

            break;

        default:
            break;
        }

        m_canvas->SetIgnoreMouseEvents( false );
        m_canvas->CrossHairOn( aDC );

        return true;
    }

    return false;
}

void LIB_EDIT_FRAME::OnUpdateEditingPart( wxUpdateUIEvent& aEvent )
{
    aEvent.Enable( m_component != NULL );

    if( m_component != NULL && aEvent.GetEventObject() == m_drawToolBar )
        aEvent.Check( GetToolId() == aEvent.GetId() );
}

void GERBVIEW_FRAME::HandleBlockPlace( wxDC* DC )
{
    wxASSERT( m_canvas->IsMouseCaptured() );

    GetScreen()->m_BlockLocate.SetState( STATE_BLOCK_STOP );

    switch( GetScreen()->m_BlockLocate.GetCommand() )
    {
    case BLOCK_MOVE:                /* Move */
        if( m_canvas->IsMouseCaptured() )
            m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );

        Block_Move( DC );
        GetScreen()->m_BlockLocate.ClearItemsList();
        break;

    default:
        wxFAIL_MSG( wxT("HandleBlockPlace: Unexpected block command") );
        break;
    }

    m_canvas->EndMouseCapture( GetToolId(), m_canvas->GetCurrentCursor(), wxEmptyString, false );
    GetScreen()->SetModify();
    GetScreen()->ClearBlockCommand();

    wxASSERT( GetScreen()->m_BlockLocate.GetCount() == 0 );

    DisplayToolMsg( wxEmptyString );
}

void FOOTPRINT_EDIT_FRAME::OnUpdateVerticalToolbar( wxUpdateUIEvent& aEvent )
{
    aEvent.Enable( GetBoard()->m_Modules != NULL );

    if( aEvent.GetEventObject() == m_drawToolBar )
        aEvent.Check( GetToolId() == aEvent.GetId() );
}

void LIB_EDIT_FRAME::OnUpdateEditingPart( wxUpdateUIEvent& aEvent )
{
    LIB_PART* part = GetCurPart();

    aEvent.Enable( part != NULL );

    if( part && aEvent.GetEventObject() == m_drawToolBar )
        aEvent.Check( GetToolId() == aEvent.GetId() );
}

void PCB_EDIT_FRAME::HandleBlockPlace( wxDC* DC )
{
    GetBoard()->m_Status_Pcb &= ~DO_NOT_SHOW_GENERAL_RASTNEST;

    if( !m_canvas->IsMouseCaptured() )
    {
        DisplayError( this, wxT( "Error in HandleBlockPLace : m_mouseCaptureCallback = NULL" ) );
    }

    GetScreen()->m_BlockLocate.SetState( STATE_BLOCK_STOP );

    const BLOCK_COMMAND_T command = GetScreen()->m_BlockLocate.GetCommand();

    switch( command )
    {
    case BLOCK_IDLE:
        break;

    case BLOCK_DRAG:                // Drag
    case BLOCK_MOVE:                // Move
    case BLOCK_PRESELECT_MOVE:      // Move with preselection list
        if( m_canvas->IsMouseCaptured() )
            m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );

        Block_Move();
        GetScreen()->m_BlockLocate.ClearItemsList();
        break;

    case BLOCK_COPY:     // Copy
    case BLOCK_COPY_AND_INCREMENT:
        if( m_canvas->IsMouseCaptured() )
            m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );

        Block_Duplicate( command == BLOCK_COPY_AND_INCREMENT );
        GetScreen()->m_BlockLocate.ClearItemsList();
        break;

    case BLOCK_PASTE:
        break;

    case BLOCK_ZOOM:        // Handled by HandleBlockEnd()
    default:
        break;
    }

    OnModify();

    m_canvas->EndMouseCapture( GetToolId(), m_canvas->GetCurrentCursor(), wxEmptyString, false );
    GetScreen()->ClearBlockCommand();

    if( GetScreen()->m_BlockLocate.GetCount() )
    {
        DisplayError( this, wxT( "Error in HandleBlockPLace some items left in list" ) );
        GetScreen()->m_BlockLocate.ClearItemsList();
    }
}

void NewToolDlg::OnButtonOk( wxCommandEvent& event )
{
	wxUnusedVar(event);
	int rc(wxID_OK);
	
	// load all the tools
	ExternalToolsData inData;
	m_mgr->GetConfigTool()->ReadObject(wxT("ExternalTools"), &inData);
	for(size_t i=0; i<inData.GetTools().size(); i++){
		if(GetToolId() == inData.GetTools().at(i).GetId()){
			int answer = wxMessageBox(wxString::Format(wxT("Continue updating tool ID '%s'"), GetToolId().c_str()), wxT("EmbeddedLite"), wxYES_NO|wxCANCEL, this);
			if(answer != wxYES){
				rc = wxID_CANCEL;
			}
			break;
		}
	}
	
	EndModal(rc);
}

void PCB_BASE_FRAME::SetToolID( int aId, int aCursor, const wxString& aToolMsg )
{
    bool redraw = false;

    EDA_DRAW_FRAME::SetToolID( aId, aCursor, aToolMsg );

    if( aId < 0 )
        return;

    // handle color changes for transitions in and out of ID_TRACK_BUTT
    if( ( GetToolId() == ID_TRACK_BUTT && aId != ID_TRACK_BUTT )
        || ( GetToolId() != ID_TRACK_BUTT && aId== ID_TRACK_BUTT ) )
    {
        if( DisplayOpt.ContrastModeDisplay )
            redraw = true;
    }

    // must do this after the tool has been set, otherwise pad::Draw() does
    // not show proper color when DisplayOpt.ContrastModeDisplay is true.
    if( redraw && m_canvas)
        m_canvas->Refresh();
}

void LIB_EDIT_FRAME::OnRotateItem( wxCommandEvent& aEvent )
{
    if( m_drawItem == NULL )
        return;

    if( !m_drawItem->InEditMode() )
    {
        SaveCopyInUndoList( m_component );
        m_drawItem->SetUnit( m_unit );
    }

    m_drawItem->Rotate();
    OnModify();

    if( !m_drawItem->InEditMode() )
        m_drawItem->ClearFlags();

    m_canvas->Refresh();

    if( GetToolId() == ID_NO_TOOL_SELECTED )
        m_lastDrawItem = NULL;
}

bool GERBVIEW_FRAME::HandleBlockEnd( wxDC* DC )
{
    bool nextcmd  = false;
    bool zoom_command = false;

    if( m_canvas->IsMouseCaptured() )

        switch( GetScreen()->m_BlockLocate.GetCommand() )
        {
        case BLOCK_MOVE:            /* Move */
            GetScreen()->m_BlockLocate.SetState( STATE_BLOCK_MOVE );
            nextcmd = true;
            m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );
            m_canvas->SetMouseCaptureCallback( DrawMovingBlockOutlines );
            m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );
            break;

        case BLOCK_ZOOM: /* Window Zoom */
            zoom_command = true;
            break;

        default:
            wxFAIL_MSG( wxT("HandleBlockEnd: Unexpected block command") );
            break;
        }

    if( ! nextcmd )
    {
        GetScreen()->ClearBlockCommand();
        m_canvas->EndMouseCapture( GetToolId(), m_canvas->GetCurrentCursor(), wxEmptyString,
                                   false );
    }

    if( zoom_command )
        Window_Zoom( GetScreen()->m_BlockLocate );

    return nextcmd ;
}

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();
    }
}

/*
 * Called on a mouse left button double click
 */
void FOOTPRINT_EDIT_FRAME::OnLeftDClick( wxDC* DC, const wxPoint& MousePos )
{
    BOARD_ITEM* item = GetCurItem();

    switch( GetToolId() )
    {
    case ID_NO_TOOL_SELECTED:
        if( ( item == NULL ) || ( item->GetFlags() == 0 ) )
        {
            item = ModeditLocateAndDisplay();
        }

        if( ( item == NULL ) || ( item->GetFlags() != 0 ) )
            break;

        // Item found
        SetCurItem( item );
        OnEditItemRequest( DC, item );
        break;      // end case 0

    case ID_PCB_ADD_LINE_BUTT:
    {
        if( item && item->IsNew() )
        {
            End_Edge_Module( (EDGE_MODULE*) item );
            SetCurItem( NULL );
            m_canvas->Refresh();
        }

        break;
    }

    default:
        break;
    }
}

/* Must be called on a click on the left toolbar (options toolbar
 * Update variables according to tools states
 */
void PCB_EDIT_FRAME::OnSelectOptionToolbar( wxCommandEvent& event )
{
    int id = event.GetId();
    bool state = event.IsChecked();

    switch( id )
    {
    case ID_TB_OPTIONS_DRC_OFF:
        g_Drc_On = !state;

        if( GetToolId() == ID_TRACK_BUTT )
        {
            if( g_Drc_On )
                m_canvas->SetCursor( wxCURSOR_PENCIL );
            else
                m_canvas->SetCursor( wxCURSOR_QUESTION_ARROW );
        }
        break;

    case ID_TB_OPTIONS_SHOW_RATSNEST:
        SetElementVisibility( RATSNEST_VISIBLE, state );

        if( state && (GetBoard()->m_Status_Pcb & LISTE_RATSNEST_ITEM_OK) == 0 )
            Compile_Ratsnest( NULL, true );

        m_canvas->Refresh();
        break;

    case ID_TB_OPTIONS_SHOW_MODULE_RATSNEST:
        g_Show_Module_Ratsnest = state; // TODO: use the visibility list
        break;

    case ID_TB_OPTIONS_AUTO_DEL_TRACK:
        g_AutoDeleteOldTrack = state;
        break;

    case ID_TB_OPTIONS_SHOW_ZONES:
        DisplayOpt.DisplayZonesMode = 0;
        m_canvas->Refresh();
        break;

    case ID_TB_OPTIONS_SHOW_ZONES_DISABLE:
        DisplayOpt.DisplayZonesMode = 1;
        m_canvas->Refresh();
        break;

    case ID_TB_OPTIONS_SHOW_ZONES_OUTLINES_ONLY:
        DisplayOpt.DisplayZonesMode = 2;
        m_canvas->Refresh();
        break;

    case ID_TB_OPTIONS_SHOW_VIAS_SKETCH:
        m_DisplayViaFill = DisplayOpt.DisplayViaFill = !state;
        m_canvas->Refresh();
        break;

    case ID_TB_OPTIONS_SHOW_TRACKS_SKETCH:
        m_DisplayPcbTrackFill = DisplayOpt.DisplayPcbTrackFill = !state;
        m_canvas->Refresh();
        break;

    case ID_TB_OPTIONS_SHOW_HIGH_CONTRAST_MODE:
    {
        DisplayOpt.ContrastModeDisplay = state;
        m_canvas->Refresh();
        break;
    }

    case ID_TB_OPTIONS_SHOW_EXTRA_VERTICAL_TOOLBAR_MICROWAVE:
        m_show_microwave_tools = state;
        m_auimgr.GetPane( wxT( "m_microWaveToolBar" ) ).Show( m_show_microwave_tools );
        m_auimgr.Update();

        GetMenuBar()->SetLabel( ID_MENU_PCB_SHOW_HIDE_MUWAVE_TOOLBAR,
                        m_show_microwave_tools ?
                        _( "Hide Microwave Toolbar" ): _( "Show Microwave Toolbar" ));
        break;

    case ID_TB_OPTIONS_SHOW_MANAGE_LAYERS_VERTICAL_TOOLBAR:
        // show auxiliary Vertical layers and visibility manager toolbar
        m_show_layer_manager_tools = state;
        m_auimgr.GetPane( wxT( "m_LayersManagerToolBar" ) ).Show( m_show_layer_manager_tools );
        m_auimgr.Update();

        GetMenuBar()->SetLabel( ID_MENU_PCB_SHOW_HIDE_LAYERS_MANAGER_DIALOG,
                                m_show_layer_manager_tools ?
                                _( "Hide &Layers Manager" ) : _( "Show &Layers Manager" ) );
        break;

    default:
        DisplayError( this,
                      wxT( "PCB_EDIT_FRAME::OnSelectOptionToolbar error \n (event not handled!)" ) );
        break;
    }
}

void LIB_EDIT_FRAME::OnLeftClick( wxDC* DC, const wxPoint& aPosition )
{
    LIB_ITEM*   item = m_drawItem;
    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_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 )
            m_drawItem = CreateGraphicItem( part, DC );
        else if( m_drawItem )
        {
            if( m_drawItem->IsNew() )
                GraphicItemBeginDraw( DC );
            else
                EndDrawGraphicItem( DC );
        }
        break;

    case ID_LIBEDIT_DELETE_ITEM_BUTT:
        m_drawItem = LocateItemUsingCursor( aPosition );

        if( m_drawItem )
            deleteItem( DC );
        else
            DisplayCmpDoc();

        break;

    case ID_LIBEDIT_ANCHOR_ITEM_BUTT:
        SaveCopyInUndoList( part );
        PlaceAnchor();
        SetToolID( ID_NO_TOOL_SELECTED, m_canvas->GetDefaultCursor(), wxEmptyString );
        break;

    default:
        wxFAIL_MSG( wxString::Format( wxT( "Unhandled command ID %d" ), GetToolId() ) );
        SetToolID( ID_NO_TOOL_SELECTED, m_canvas->GetDefaultCursor(), wxEmptyString );
        break;
    }
}

void PCB_EDIT_FRAME::GeneralControl( wxDC* aDC, const wxPoint& aPosition, int aHotKey )
{
    // Filter out the 'fake' mouse motion after a keyboard movement
    if( !aHotKey && m_movingCursorWithKeyboard )
    {
        m_movingCursorWithKeyboard = false;
        return;
    }

    // when moving mouse, use the "magnetic" grid, unless the shift+ctrl keys is pressed
    // for next cursor position
    // ( shift or ctrl key down are PAN command with mouse wheel)
    bool snapToGrid = true;
    if( !aHotKey && wxGetKeyState( WXK_SHIFT ) && wxGetKeyState( WXK_CONTROL ) )
        snapToGrid = false;

    wxPoint oldpos = GetCrossHairPosition();
    wxPoint pos = aPosition;
    GeneralControlKeyMovement( aHotKey, &pos, snapToGrid );

    // Put cursor in new position, according to the zoom keys (if any).
    SetCrossHairPosition( pos, snapToGrid );

    /* Put cursor on grid or a pad centre if requested. If the tool DELETE is active the
     * cursor is left off grid this is better to reach items to delete off grid,
     */
    if( GetToolId() == ID_PCB_DELETE_ITEM_BUTT )
        snapToGrid = false;

    // Cursor is left off grid if no block in progress
    if( GetScreen()->m_BlockLocate.GetState() != STATE_NO_BLOCK )
        snapToGrid = true;

    wxPoint curs_pos = pos;

    wxRealPoint gridSize = GetScreen()->GetGridSize();
    wxSize igridsize;
    igridsize.x = KiROUND( gridSize.x );
    igridsize.y = KiROUND( gridSize.y );

    if( Magnetize( this, GetToolId(), igridsize, curs_pos, &pos ) )
    {
        SetCrossHairPosition( pos, false );
    }
    else
    {
        // If there's no intrusion and DRC is active, we pass the cursor
        // "as is", and let ShowNewTrackWhenMovingCursor figure out what to do.
        if( !g_Drc_On || !g_CurrentTrackSegment ||
            (BOARD_ITEM*)g_CurrentTrackSegment != this->GetCurItem() ||
            !LocateIntrusion( m_Pcb->m_Track, g_CurrentTrackSegment,
                              GetScreen()->m_Active_Layer, RefPos( true ) ) )
        {
            SetCrossHairPosition( curs_pos, snapToGrid );
        }
    }

    RefreshCrossHair( oldpos, aPosition, aDC );

    if( aHotKey )
    {
        OnHotKey( aDC, aHotKey, aPosition );
    }

    UpdateStatusBar();    // Display new cursor coordinates
}

//.........这里部分代码省略.........

        case BLOCK_DELETE:
            GetScreen()->UpdatePickList();
            DrawAndSizingBlockOutlines( m_canvas, aDC, wxDefaultPosition, false );

            if( block->GetCount() )
            {
                DeleteItemsInList( m_canvas, block->GetItems() );
                OnModify();
            }
            block->ClearItemsList();
            GetScreen()->TestDanglingEnds( m_canvas, aDC );
            m_canvas->Refresh();
            break;

        case BLOCK_SAVE:    // Save a copy of items in paste buffer
            GetScreen()->UpdatePickList();
            DrawAndSizingBlockOutlines( m_canvas, aDC, wxDefaultPosition, false );

            if( block->GetCount() )
            {
                wxPoint move_vector = -GetScreen()->m_BlockLocate.GetLastCursorPosition();
                copyBlockItems( block->GetItems() );
                MoveItemsInList( m_blockItems.GetItems(), move_vector );
            }

            block->ClearItemsList();
            break;

        case BLOCK_PASTE:
            block->SetState( STATE_BLOCK_MOVE );
            break;

        case BLOCK_ZOOM:
            zoom_command = true;
            break;

        case BLOCK_MIRROR_X:
            GetScreen()->UpdatePickList();
            DrawAndSizingBlockOutlines( m_canvas, aDC, wxDefaultPosition, false );

            if( block->GetCount() )
            {
                // Compute the mirror center and put it on grid.
                wxPoint mirrorPoint = block->Centre();
                mirrorPoint = GetNearestGridPosition( mirrorPoint );
                SetCrossHairPosition( mirrorPoint );
                SaveCopyInUndoList( block->GetItems(), UR_MIRRORED_X, mirrorPoint );
                MirrorX( block->GetItems(), mirrorPoint );
                OnModify();
            }

            GetScreen()->TestDanglingEnds( m_canvas, aDC );
            m_canvas->Refresh();
            break;

        case BLOCK_MIRROR_Y:
            GetScreen()->UpdatePickList();
            DrawAndSizingBlockOutlines( m_canvas, aDC, wxDefaultPosition, false );

            if( block->GetCount() )
            {
                // Compute the mirror center and put it on grid.
                wxPoint mirrorPoint = block->Centre();
                mirrorPoint = GetNearestGridPosition( mirrorPoint );
                SetCrossHairPosition( mirrorPoint );
                SaveCopyInUndoList( block->GetItems(), UR_MIRRORED_Y, mirrorPoint );
                MirrorY( block->GetItems(), mirrorPoint );
                OnModify();
            }

            GetScreen()->TestDanglingEnds( m_canvas, aDC );
            m_canvas->Refresh();
            break;

        default:
            break;
        }
    }

    if( block->GetCommand() == BLOCK_ABORT )
    {
        GetScreen()->ClearDrawingState();
        m_canvas->Refresh();
    }

    if( ! nextcmd )
    {
        block->SetState( STATE_NO_BLOCK );
        block->SetCommand( BLOCK_IDLE );
        GetScreen()->SetCurItem( NULL );
        m_canvas->EndMouseCapture( GetToolId(), m_canvas->GetCurrentCursor(), wxEmptyString,
                                   false );
    }

    if( zoom_command )
        Window_Zoom( GetScreen()->m_BlockLocate );

    return nextcmd;
}

void PCB_EDIT_FRAME::OnUpdateMuWaveToolbar( wxUpdateUIEvent& aEvent )
{
    if( aEvent.GetEventObject() == m_microWaveToolBar )
        aEvent.Check( GetToolId() == aEvent.GetId() );
}

void PCB_EDIT_FRAME::GeneralControl( wxDC* aDC, const wxPoint& aPosition, int aHotKey )
{
    wxRealPoint gridSize;
    wxPoint     oldpos;
    wxPoint     pos = aPosition;

    // when moving mouse, use the "magnetic" grid, unless the shift+ctrl keys is pressed
    // for next cursor position
    // ( shift or ctrl key down are PAN command with mouse wheel)
    bool snapToGrid = true;
    if( !aHotKey && wxGetKeyState( WXK_SHIFT ) && wxGetKeyState( WXK_CONTROL ) )
        snapToGrid = false;

    if( snapToGrid )
        pos = GetNearestGridPosition( pos );

    oldpos = GetCrossHairPosition();

    gridSize = GetScreen()->GetGridSize();

    switch( aHotKey )
    {
    case WXK_NUMPAD8:
    case WXK_UP:
        pos.y -= KiROUND( gridSize.y );
        m_canvas->MoveCursor( pos );
        break;

    case WXK_NUMPAD2:
    case WXK_DOWN:
        pos.y += KiROUND( gridSize.y );
        m_canvas->MoveCursor( pos );
        break;

    case WXK_NUMPAD4:
    case WXK_LEFT:
        pos.x -= KiROUND( gridSize.x );
        m_canvas->MoveCursor( pos );
        break;

    case WXK_NUMPAD6:
    case WXK_RIGHT:
        pos.x += KiROUND( gridSize.x );
        m_canvas->MoveCursor( pos );
        break;

    default:
        break;
    }

    // Put cursor in new position, according to the zoom keys (if any).
    SetCrossHairPosition( pos, snapToGrid );

    /* Put cursor on grid or a pad centre if requested. If the tool DELETE is active the
     * cursor is left off grid this is better to reach items to delete off grid,
     */
    if( GetToolId() == ID_PCB_DELETE_ITEM_BUTT )
        snapToGrid = false;

    // Cursor is left off grid if no block in progress
    if( GetScreen()->m_BlockLocate.GetState() != STATE_NO_BLOCK )
        snapToGrid = true;

    wxPoint curs_pos = pos;

    wxSize igridsize;
    igridsize.x = KiROUND( gridSize.x );
    igridsize.y = KiROUND( gridSize.y );

    if( Magnetize( this, GetToolId(), igridsize, curs_pos, &pos ) )
    {
        SetCrossHairPosition( pos, false );
    }
    else
    {
        // If there's no intrusion and DRC is active, we pass the cursor
        // "as is", and let ShowNewTrackWhenMovingCursor figure out what to do.
        if( !g_Drc_On || !g_CurrentTrackSegment ||
            (BOARD_ITEM*)g_CurrentTrackSegment != this->GetCurItem() ||
            !LocateIntrusion( m_Pcb->m_Track, g_CurrentTrackSegment,
                              GetScreen()->m_Active_Layer, RefPos( true ) ) )
        {
            SetCrossHairPosition( curs_pos, snapToGrid );
        }
    }


    if( oldpos != GetCrossHairPosition() )
    {
        pos = GetCrossHairPosition();
        SetCrossHairPosition( oldpos, false );
        m_canvas->CrossHairOff( aDC );
        SetCrossHairPosition( pos, false );
        m_canvas->CrossHairOn( aDC );

        if( m_canvas->IsMouseCaptured() )
        {
#ifdef USE_WX_OVERLAY
            wxDCOverlay oDC( m_overlay, (wxWindowDC*)aDC );
            oDC.Clear();
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        SetCrossHairPosition( wxPoint(  GetScreen()->m_BlockLocate.GetRight(),
                                        GetScreen()->m_BlockLocate.GetBottom() ) );
        m_canvas->MoveCursorToCrossHair();
    }

    switch( GetScreen()->m_BlockLocate.GetCommand() )
    {
    case  BLOCK_IDLE:
        DisplayError( this, wxT( "Error in HandleBlockPLace" ) );
        break;

    case BLOCK_DRAG:        // Drag
    case BLOCK_MOVE:        // Move
    case BLOCK_COPY:        // Copy
        itemsCount = MarkItemsInBloc( currentModule, GetScreen()->m_BlockLocate );

        if( itemsCount )
        {
            nextcmd = true;

            if( m_canvas->IsMouseCaptured() )
            {
                m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );
                m_canvas->SetMouseCaptureCallback( DrawMovingBlockOutlines );
                m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );
            }

            GetScreen()->m_BlockLocate.SetState( STATE_BLOCK_MOVE );
            m_canvas->Refresh( true );
        }

        break;

    case BLOCK_PRESELECT_MOVE:     // Move with preselection list
        nextcmd = true;
        m_canvas->SetMouseCaptureCallback( DrawMovingBlockOutlines );
        GetScreen()->m_BlockLocate.SetState( STATE_BLOCK_MOVE );
        break;

    case BLOCK_DELETE:     // Delete
        itemsCount = MarkItemsInBloc( currentModule, GetScreen()->m_BlockLocate );

        if( itemsCount )
            SaveCopyInUndoList( currentModule, UR_MODEDIT );

        DeleteMarkedItems( currentModule );
        break;

    case BLOCK_SAVE:     // Save
    case BLOCK_PASTE:
        break;

    case BLOCK_ROTATE:
        itemsCount = MarkItemsInBloc( currentModule, GetScreen()->m_BlockLocate );

        if( itemsCount )
            SaveCopyInUndoList( currentModule, UR_MODEDIT );

        RotateMarkedItems( currentModule, GetScreen()->m_BlockLocate.Centre() );
        break;


    case BLOCK_MIRROR_X:
    case BLOCK_MIRROR_Y:
    case BLOCK_FLIP:     // mirror
        itemsCount = MarkItemsInBloc( currentModule, GetScreen()->m_BlockLocate );

        if( itemsCount )
            SaveCopyInUndoList( currentModule, UR_MODEDIT );

        MirrorMarkedItems( currentModule, GetScreen()->m_BlockLocate.Centre() );
        break;

    case BLOCK_ZOOM:     // Window Zoom
        Window_Zoom( GetScreen()->m_BlockLocate );
        break;

    case BLOCK_ABORT:
        break;

    case BLOCK_SELECT_ITEMS_ONLY:
        break;
    }

    if( !nextcmd )
    {
        if( GetScreen()->m_BlockLocate.GetCommand() != BLOCK_SELECT_ITEMS_ONLY )
        {
            ClearMarkItems( currentModule );
        }

        GetScreen()->ClearBlockCommand();
        SetCurItem( NULL );
        m_canvas->EndMouseCapture( GetToolId(), m_canvas->GetCurrentCursor(), wxEmptyString,
                                   false );
        m_canvas->Refresh( true );
    }

    return nextcmd;
}

bool SCH_EDIT_FRAME::GeneralControl( wxDC* aDC, const wxPoint& aPosition, EDA_KEY aHotKey )
{
    // Filter out the 'fake' mouse motion after a keyboard movement
    if( !aHotKey && m_movingCursorWithKeyboard )
    {
        m_movingCursorWithKeyboard = false;
        return false;
    }

    // when moving mouse, use the "magnetic" grid, unless the shift+ctrl keys is pressed
    // for next cursor position
    // ( shift or ctrl key down are PAN command with mouse wheel)
    bool snapToGrid = true;

    if( !aHotKey && wxGetKeyState( WXK_SHIFT ) && wxGetKeyState( WXK_CONTROL ) )
        snapToGrid = false;

    // Cursor is left off grid only if no block in progress
    if( GetScreen()->m_BlockLocate.GetState() != STATE_NO_BLOCK )
        snapToGrid = true;

    wxPoint pos = aPosition;
    bool keyHandled = GeneralControlKeyMovement( aHotKey, &pos, snapToGrid );

    if( GetToolId() == ID_NO_TOOL_SELECTED )
        m_canvas->CrossHairOff( aDC );
    else
        m_canvas->CrossHairOn( aDC );

    GetGalCanvas()->GetViewControls()->SetSnapping( snapToGrid );
    SetCrossHairPosition( pos, snapToGrid );

    if( m_canvas->IsMouseCaptured() )
        m_canvas->CallMouseCapture( aDC, aPosition, true );

    if( aHotKey )
    {
        if( m_movingCursorWithKeyboard )    // The hotkey was a move crossahir cursor command
        {
            // The crossair was moved. move the mouse cursor to the new crosshair position:
            GetGalCanvas()->GetViewControls()->WarpCursor( GetCrossHairPosition(), true );
            m_movingCursorWithKeyboard = 0;
        }
        else
        {
            SCH_SCREEN* screen = GetScreen();
            bool hk_handled;

            if( screen->GetCurItem() && screen->GetCurItem()->GetFlags() )
                hk_handled = OnHotKey( aDC, aHotKey, aPosition, screen->GetCurItem() );
            else
                hk_handled = OnHotKey( aDC, aHotKey, aPosition, NULL );

            if( hk_handled )
                keyHandled = true;
        }
    }

    UpdateStatusBar();    /* Display cursor coordinates info */

    return keyHandled;
}