C++ VIEW::Remove方法代码示例

void FOOTPRINT_EDIT_FRAME::RestoreCopyFromUndoList( wxCommandEvent& aEvent )
{
    if( UndoRedoBlocked() )
        return;

    if( GetScreen()->GetUndoCommandCount() <= 0 )
        return;

    // Inform tools that undo command was issued
    TOOL_EVENT event( TC_MESSAGE, TA_UNDO_REDO, AS_GLOBAL );
    m_toolManager->ProcessEvent( event );

    if( UndoRedoBlocked() )
        return;

    // Save current module state in redo list
    PICKED_ITEMS_LIST* lastcmd = new PICKED_ITEMS_LIST();
    MODULE* module = GetBoard()->m_Modules.PopFront();
    ITEM_PICKER wrapper( module, UR_MODEDIT );
    KIGFX::VIEW* view = GetGalCanvas()->GetView();
    lastcmd->PushItem( wrapper );
    GetScreen()->PushCommandToRedoList( lastcmd );

    view->Remove( module );
    module->RunOnChildren( std::bind( &KIGFX::VIEW::Remove, view, _1 ) );

    // Retrieve last module state from undo list
    lastcmd = GetScreen()->PopCommandFromUndoList();
    wrapper = lastcmd->PopItem();
    module = (MODULE*) wrapper.GetItem();
    delete lastcmd;

    if( module )
    {
        GetBoard()->Add( module, ADD_APPEND );
        view->Add( module );
        module->RunOnChildren( std::bind( &KIGFX::VIEW::Add, view, _1 ) );
        module->ViewUpdate();
    }

    SetCurItem( NULL );

    OnModify();
    m_canvas->Refresh();
}

void EDIT_TOOL::processChanges( const PICKED_ITEMS_LIST* aList )
{
    KIGFX::VIEW* view = getView();
    RN_DATA* ratsnest = getModel<BOARD>()->GetRatsnest();

    for( unsigned int i = 0; i < aList->GetCount(); ++i )
    {
        UNDO_REDO_T operation = aList->GetPickedItemStatus( i );
        BOARD_ITEM* updItem = static_cast<BOARD_ITEM*>( aList->GetPickedItem( i ) );

        switch( operation )
        {
        case UR_CHANGED:
            ratsnest->Update( updItem );
            // fall through

        case UR_MODEDIT:
            updItem->ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
            break;

        case UR_DELETED:
            if( updItem->Type() == PCB_MODULE_T )
                static_cast<MODULE*>( updItem )->RunOnChildren( boost::bind( &KIGFX::VIEW::Remove,
                                                                             view, _1 ) );

            view->Remove( updItem );
            //ratsnest->Remove( updItem );  // this is done in BOARD::Remove
            break;

        case UR_NEW:
            if( updItem->Type() == PCB_MODULE_T )
                static_cast<MODULE*>( updItem )->RunOnChildren( boost::bind( &KIGFX::VIEW::Add,
                                                                             view, _1 ) );

            view->Add( updItem );
            //ratsnest->Add( updItem );     // this is done in BOARD::Add
            break;

        default:
            assert( false );    // Not handled
            break;
        }
    }
}

int PCB_EDITOR_CONTROL::PlaceModule( const TOOL_EVENT& aEvent )
{
    MODULE* module = NULL;
    KIGFX::VIEW* view = getView();
    KIGFX::VIEW_CONTROLS* controls = getViewControls();
    BOARD* board = getModel<BOARD>();

    // Add a VIEW_GROUP that serves as a preview for the new item
    KIGFX::VIEW_GROUP preview( view );
    view->Add( &preview );

    m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );
    controls->ShowCursor( true );
    controls->SetSnapping( true );

    Activate();
    m_frame->SetToolID( ID_PCB_MODULE_BUTT, wxCURSOR_HAND, _( "Add footprint" ) );

    // Main loop: keep receiving events
    while( OPT_TOOL_EVENT evt = Wait() )
    {
        VECTOR2I cursorPos = controls->GetCursorPosition();

        if( evt->IsCancel() || evt->IsActivate() )
        {
            if( module )
            {
                board->Delete( module );  // it was added by LoadModuleFromLibrary()
                module = NULL;

                preview.Clear();
                preview.ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
                controls->ShowCursor( true );
            }
            else
                break;

            if( evt->IsActivate() )  // now finish unconditionally
                break;
        }

        else if( module && evt->Category() == TC_COMMAND )
        {
            if( evt->IsAction( &COMMON_ACTIONS::rotate ) )
            {
                module->Rotate( module->GetPosition(), m_frame->GetRotationAngle() );
                preview.ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
            }
            else if( evt->IsAction( &COMMON_ACTIONS::flip ) )
            {
                module->Flip( module->GetPosition() );
                preview.ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
            }
        }

        else if( evt->IsClick( BUT_LEFT ) )
        {
            if( !module )
            {
                // Pick the module to be placed
                module = m_frame->LoadModuleFromLibrary( wxEmptyString,
                                                         m_frame->Prj().PcbFootprintLibs(),
                                                         true, NULL );
                if( module == NULL )
                    continue;

                module->SetPosition( wxPoint( cursorPos.x, cursorPos.y ) );

                // Add all the drawable parts to preview
                preview.Add( module );
                module->RunOnChildren( boost::bind( &KIGFX::VIEW_GROUP::Add, &preview, _1 ) );

                preview.ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
            }
            else
            {
                // Place the selected module
                module->RunOnChildren( boost::bind( &KIGFX::VIEW::Add, view, _1 ) );
                view->Add( module );
                module->ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );

                m_frame->OnModify();
                m_frame->SaveCopyInUndoList( module, UR_NEW );

                // Remove from preview
                preview.Remove( module );
                module->RunOnChildren( boost::bind( &KIGFX::VIEW_GROUP::Remove, &preview, _1 ) );
                module = NULL;  // to indicate that there is no module that we currently modify
            }

            bool placing = ( module != NULL );

            controls->SetAutoPan( placing );
            controls->CaptureCursor( placing );
            controls->ShowCursor( !placing );
        }

        else if( module && evt->IsMotion() )
        {
            module->SetPosition( wxPoint( cursorPos.x, cursorPos.y ) );
//.........这里部分代码省略.........

void PCB_EDIT_FRAME::ReadPcbNetlist( const wxString& aNetlistFileName,
                                     const wxString& aCmpFileName,
                                     REPORTER*       aReporter,
                                     bool            aChangeFootprints,
                                     bool            aDeleteUnconnectedTracks,
                                     bool            aDeleteExtraFootprints,
                                     bool            aSelectByTimeStamp,
                                     bool            aDeleteSinglePadNets,
                                     bool            aIsDryRun )
{
    wxString        msg;
    NETLIST         netlist;
    KIGFX::VIEW*    view = GetGalCanvas()->GetView();
    BOARD*          board = GetBoard();
    std::vector<MODULE*> newFootprints;
    // keep trace of the initial baord area, if we want to place new footprints
    // outside the existinag board
    EDA_RECT bbox = board->GetBoundingBox();

    netlist.SetIsDryRun( aIsDryRun );
    netlist.SetFindByTimeStamp( aSelectByTimeStamp );
    netlist.SetDeleteExtraFootprints( aDeleteExtraFootprints );
    netlist.SetReplaceFootprints( aChangeFootprints );

    try
    {
        std::unique_ptr<NETLIST_READER> netlistReader( NETLIST_READER::GetNetlistReader(
            &netlist, aNetlistFileName, aCmpFileName ) );

        if( !netlistReader.get() )
        {
            msg.Printf( _( "Cannot open netlist file \"%s\"." ), GetChars( aNetlistFileName ) );
            wxMessageBox( msg, _( "Netlist Load Error." ), wxOK | wxICON_ERROR, this );
            return;
        }

        SetLastNetListRead( aNetlistFileName );
        netlistReader->LoadNetlist();
        LoadFootprints( netlist, aReporter );
    }
    catch( const IO_ERROR& ioe )
    {
        msg.Printf( _( "Error loading netlist.\n%s" ), ioe.What().GetData() );
        wxMessageBox( msg, _( "Netlist Load Error" ), wxOK | wxICON_ERROR );
        return;
    }

    // Clear undo and redo lists to avoid inconsistencies between lists
    if( !netlist.IsDryRun() )
        GetScreen()->ClearUndoRedoList();

    if( !netlist.IsDryRun() )
    {
        // Remove old modules
        for( MODULE* module = board->m_Modules; module; module = module->Next() )
        {
            view->Remove( module );
        }
    }

    // Clear selection, just in case a selected item has to be removed
    m_toolManager->RunAction( PCB_ACTIONS::selectionClear, true );

    netlist.SortByReference();
    board->ReplaceNetlist( netlist, aDeleteSinglePadNets, &newFootprints, aReporter );

    // If it was a dry run, nothing has changed so we're done.
    if( netlist.IsDryRun() )
        return;

    if( IsGalCanvasActive() )
    {
        SpreadFootprints( &newFootprints, false, false, GetCrossHairPosition() );

        if( !newFootprints.empty() )
        {
            for( MODULE* footprint : newFootprints )
            {
                m_toolManager->RunAction( PCB_ACTIONS::selectItem, true, footprint );
            }
            m_toolManager->InvokeTool( "pcbnew.InteractiveEdit" );
        }
    }
    else
    {
        wxPoint placementAreaPosition;

        // Place area to the left side of the board.
        // if the board is empty, the bbox position is (0,0)
        placementAreaPosition.x = bbox.GetEnd().x + Millimeter2iu( 10 );
        placementAreaPosition.y = bbox.GetOrigin().y;

        SpreadFootprints( &newFootprints, false, false, placementAreaPosition );
    }

    OnModify();

    SetCurItem( NULL );

    // Reload modules
//.........这里部分代码省略.........

int POINT_EDITOR::OnSelectionChange( const TOOL_EVENT& aEvent )
{
    const SELECTION& selection = m_selectionTool->GetSelection();

    if( selection.Size() == 1 )
    {
        Activate();

        KIGFX::VIEW_CONTROLS* controls = getViewControls();
        KIGFX::VIEW* view = getView();
        PCB_BASE_EDIT_FRAME* editFrame = getEditFrame<PCB_BASE_EDIT_FRAME>();
        EDA_ITEM* item = selection.items.GetPickedItem( 0 );

        m_editPoints = EDIT_POINTS_FACTORY::Make( item, getView()->GetGAL() );

        if( !m_editPoints )
            return 0;

        view->Add( m_editPoints.get() );
        m_editedPoint = NULL;
        bool modified = false;

        // Main loop: keep receiving events
        while( OPT_TOOL_EVENT evt = Wait() )
        {
            if( !m_editPoints ||
                evt->Matches( m_selectionTool->ClearedEvent ) ||
                evt->Matches( m_selectionTool->UnselectedEvent ) ||
                evt->Matches( m_selectionTool->SelectedEvent ) )
            {
                break;
            }

            if( evt->IsMotion() )
            {
                EDIT_POINT* point = m_editPoints->FindPoint( evt->Position() );

                if( m_editedPoint != point )
                    setEditedPoint( point );
            }

            else if( evt->IsAction( &COMMON_ACTIONS::pointEditorAddCorner ) )
            {
                addCorner( controls->GetCursorPosition() );
                updatePoints();
            }

            else if( evt->IsAction( &COMMON_ACTIONS::pointEditorRemoveCorner ) )
            {
                if( m_editedPoint )
                {
                    removeCorner( m_editedPoint );
                    updatePoints();
                }
            }

            else if( evt->IsDrag( BUT_LEFT ) && m_editedPoint )
            {
                if( !modified )
                {
                    // Save items, so changes can be undone
                    editFrame->OnModify();
                    editFrame->SaveCopyInUndoList( selection.items, UR_CHANGED );
                    controls->ForceCursorPosition( false );
                    m_original = *m_editedPoint;    // Save the original position
                    controls->SetAutoPan( true );
                    modified = true;
                }

                bool enableAltConstraint = !!evt->Modifier( MD_CTRL );
                if( enableAltConstraint != (bool) m_altConstraint )  // alternative constraint
                    setAltConstraint( enableAltConstraint );

                m_editedPoint->SetPosition( controls->GetCursorPosition() );

                if( m_altConstraint )
                    m_altConstraint->Apply();
                else
                    m_editedPoint->ApplyConstraint();

                updateItem();
                updatePoints();

                m_editPoints->ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
            }

            else if( evt->IsAction( &COMMON_ACTIONS::pointEditorUpdate ) )
            {
                updatePoints();
            }

            else if( evt->IsMouseUp( BUT_LEFT ) )
            {
                controls->SetAutoPan( false );
                setAltConstraint( false );
                modified = false;
                m_toolMgr->PassEvent();
            }

            else if( evt->IsCancel() )
//.........这里部分代码省略.........

bool SELECTION_TOOL::selectMultiple()
{
    bool cancelled = false;     // Was the tool cancelled while it was running?
    m_multiple = true;          // Multiple selection mode is active
    KIGFX::VIEW* view = getView();
    getViewControls()->SetAutoPan( true );

    SELECTION_AREA area;
    view->Add( &area );

    while( OPT_TOOL_EVENT evt = Wait() )
    {
        if( evt->IsCancel() )
        {
            cancelled = true;
            break;
        }

        if( evt->IsDrag( BUT_LEFT ) )
        {
            if( !m_additive )
                clearSelection();

            // Start drawing a selection box
            area.SetOrigin( evt->DragOrigin() );
            area.SetEnd( evt->Position() );
            area.ViewSetVisible( true );
            area.ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
        }

        if( evt->IsMouseUp( BUT_LEFT ) )
        {
            // End drawing the selection box
            area.ViewSetVisible( false );

            // Mark items within the selection box as selected
            std::vector<KIGFX::VIEW::LAYER_ITEM_PAIR> selectedItems;
            BOX2I selectionBox = area.ViewBBox();
            view->Query( selectionBox, selectedItems );         // Get the list of selected items

            std::vector<KIGFX::VIEW::LAYER_ITEM_PAIR>::iterator it, it_end;

            for( it = selectedItems.begin(), it_end = selectedItems.end(); it != it_end; ++it )
            {
                BOARD_ITEM* item = static_cast<BOARD_ITEM*>( it->first );

                // Add only those items that are visible and fully within the selection box
                if( !item->IsSelected() && selectable( item ) &&
                        selectionBox.Contains( item->ViewBBox() ) )
                {
                    select( item );
                }
            }

            // Do not display information about selected item,as there is more than one
            m_frame->SetCurItem( NULL );

            if( !m_selection.Empty() )
            {
                // Inform other potentially interested tools
                m_toolMgr->ProcessEvent( SelectedEvent );
            }

            break;  // Stop waiting for events
        }
    }

    // Stop drawing the selection box
    area.ViewSetVisible( false );
    view->Remove( &area );
    m_multiple = false;         // Multiple selection mode is inactive
    getViewControls()->SetAutoPan( false );

    return cancelled;
}

void PCB_EDIT_FRAME::ReadPcbNetlist( const wxString& aNetlistFileName,
                                     const wxString& aCmpFileName,
                                     REPORTER*       aReporter,
                                     bool            aChangeFootprints,
                                     bool            aDeleteUnconnectedTracks,
                                     bool            aDeleteExtraFootprints,
                                     bool            aSelectByTimeStamp,
                                     bool            aDeleteSinglePadNets,
                                     bool            aIsDryRun )
{
    wxString        msg;
    NETLIST         netlist;
    KIGFX::VIEW*    view = GetGalCanvas()->GetView();
    BOARD*          board = GetBoard();

    netlist.SetIsDryRun( aIsDryRun );
    netlist.SetFindByTimeStamp( aSelectByTimeStamp );
    netlist.SetDeleteExtraFootprints( aDeleteExtraFootprints );
    netlist.SetReplaceFootprints( aChangeFootprints );

    try
    {
        std::auto_ptr<NETLIST_READER> netlistReader( NETLIST_READER::GetNetlistReader(
            &netlist, aNetlistFileName, aCmpFileName ) );

        if( !netlistReader.get() )
        {
            msg.Printf( _( "Cannot open netlist file \"%s\"." ), GetChars( aNetlistFileName ) );
            wxMessageBox( msg, _( "Netlist Load Error." ), wxOK | wxICON_ERROR, this );
            return;
        }

        SetLastNetListRead( aNetlistFileName );
        netlistReader->LoadNetlist();
        loadFootprints( netlist, aReporter );
    }
    catch( const IO_ERROR& ioe )
    {
        msg.Printf( _( "Error loading netlist.\n%s" ), ioe.errorText.GetData() );
        wxMessageBox( msg, _( "Netlist Load Error" ), wxOK | wxICON_ERROR );
        return;
    }

    // Clear undo and redo lists to avoid inconsistencies between lists
    if( !netlist.IsDryRun() )
        GetScreen()->ClearUndoRedoList();

    if( !netlist.IsDryRun() )
    {
        // Remove old modules
        for( MODULE* module = board->m_Modules; module; module = module->Next() )
        {
            module->RunOnChildren( boost::bind( &KIGFX::VIEW::Remove, view, _1 ) );
            view->Remove( module );
        }
    }

    // Clear selection, just in case a selected item has to be removed
    m_toolManager->RunAction( COMMON_ACTIONS::selectionClear, true );

    netlist.SortByReference();
    board->ReplaceNetlist( netlist, aDeleteSinglePadNets, aReporter );

    // If it was a dry run, nothing has changed so we're done.
    if( netlist.IsDryRun() )
        return;

    OnModify();

    SetCurItem( NULL );

    // Reload modules
    for( MODULE* module = board->m_Modules; module; module = module->Next() )
    {
        module->RunOnChildren( boost::bind( &KIGFX::VIEW::Add, view, _1 ) );
        view->Add( module );
        module->ViewUpdate();
    }

    if( aDeleteUnconnectedTracks && board->m_Track )
    {
        // Remove erroneous tracks.  This should probably pushed down to the #BOARD object.
        RemoveMisConnectedTracks();
    }

    // Rebuild the board connectivity:
    if( IsGalCanvasActive() )
        board->GetRatsnest()->ProcessBoard();

    Compile_Ratsnest( NULL, true );

    SetMsgPanel( board );
    m_canvas->Refresh();
}

void PCB_EDIT_FRAME::PutDataInPreviousState( PICKED_ITEMS_LIST* aList, bool aRedoCommand,
                                             bool aRebuildRatsnet )
{
    BOARD_ITEM* item;
    bool        not_found = false;
    bool        reBuild_ratsnest = false;
    KIGFX::VIEW* view = GetGalCanvas()->GetView();
    RN_DATA* ratsnest = GetBoard()->GetRatsnest();

    // Undo in the reverse order of list creation: (this can allow stacked changes
    // like the same item can be changes and deleted in the same complex command

    bool build_item_list = true;    // if true the list of existing items must be rebuilt

    for( int ii = aList->GetCount() - 1; ii >= 0 ; ii-- )
    {
        item = (BOARD_ITEM*) aList->GetPickedItem( ii );
        wxASSERT( item );

        /* Test for existence of item on board.
         * It could be deleted, and no more on board:
         *   - if a call to SaveCopyInUndoList was forgotten in Pcbnew
         *   - in zones outlines, when a change in one zone merges this zone with an other
         * This test avoids a Pcbnew crash
         * Obviously, this test is not made for deleted items
         */
        UNDO_REDO_T status = aList->GetPickedItemStatus( ii );

        if( status != UR_DELETED )
        {
            if( build_item_list )
                // Build list of existing items, for integrity test
                TestForExistingItem( GetBoard(), NULL );

            build_item_list = false;

            if( !TestForExistingItem( GetBoard(), item ) )
            {
                // Remove this non existent item
                aList->RemovePicker( ii );
                ii++;       // the current item was removed, ii points now the next item
                            // decrement it because it will be incremented later
                not_found = true;
                continue;
            }
        }

        item->ClearFlags();

        // see if we must rebuild ratsnets and pointers lists
        switch( item->Type() )
        {
        case PCB_MODULE_T:
        case PCB_ZONE_AREA_T:
        case PCB_TRACE_T:
        case PCB_VIA_T:
            reBuild_ratsnest = true;
            break;

        default:
            break;
        }

        switch( aList->GetPickedItemStatus( ii ) )
        {
        case UR_CHANGED:    /* Exchange old and new data for each item */
        {
            BOARD_ITEM* image = (BOARD_ITEM*) aList->GetPickedItemLink( ii );

            // Remove all pads/drawings/texts, as they become invalid
            // for the VIEW after SwapData() called for modules
            if( item->Type() == PCB_MODULE_T )
            {
                MODULE* oldModule = static_cast<MODULE*>( item );
                oldModule->RunOnChildren( boost::bind( &KIGFX::VIEW::Remove, view, _1 ) );
            }
            ratsnest->Remove( item );

            item->SwapData( image );

            // Update all pads/drawings/texts, as they become invalid
            // for the VIEW after SwapData() called for modules
            if( item->Type() == PCB_MODULE_T )
            {
                MODULE* newModule = static_cast<MODULE*>( item );
                newModule->RunOnChildren( boost::bind( &KIGFX::VIEW::Add, view, _1 ) );
            }
            ratsnest->Add( item );

            item->ClearFlags( SELECTED );
            item->ViewUpdate( KIGFX::VIEW_ITEM::LAYERS );
        }
        break;

        case UR_NEW:        /* new items are deleted */
            aList->SetPickedItemStatus( UR_DELETED, ii );
            GetBoard()->Remove( item );

            if( item->Type() == PCB_MODULE_T )
            {
//.........这里部分代码省略.........

int PCB_EDITOR_CONTROL::PlaceModule( const TOOL_EVENT& aEvent )
{
    MODULE* module = NULL;
    KIGFX::VIEW* view = getView();
    KIGFX::VIEW_CONTROLS* controls = getViewControls();
    BOARD* board = getModel<BOARD>();

    // Add a VIEW_GROUP that serves as a preview for the new item
    KIGFX::VIEW_GROUP preview( view );
    view->Add( &preview );

    m_toolMgr->RunAction( PCB_ACTIONS::selectionClear, true );
    controls->ShowCursor( true );
    controls->SetSnapping( true );

    Activate();
    m_frame->SetToolID( ID_PCB_MODULE_BUTT, wxCURSOR_HAND, _( "Add footprint" ) );

    // Main loop: keep receiving events
    while( OPT_TOOL_EVENT evt = Wait() )
    {
        VECTOR2I cursorPos = controls->GetCursorPosition();

        if( evt->IsCancel() || evt->IsActivate() )
        {
            if( module )
            {
                delete module;
                module = NULL;

                preview.Clear();
                controls->ShowCursor( true );
            }
            else
                break;

            if( evt->IsActivate() )  // now finish unconditionally
                break;
        }

        else if( module && evt->Category() == TC_COMMAND )
        {
            if( TOOL_EVT_UTILS::IsRotateToolEvt( *evt ) )
            {
                const auto rotationAngle = TOOL_EVT_UTILS::GetEventRotationAngle(
                        *m_frame, *evt );
                module->Rotate( module->GetPosition(), rotationAngle );
                view->Update( &preview );
            }
            else if( evt->IsAction( &PCB_ACTIONS::flip ) )
            {
                module->Flip( module->GetPosition() );
                view->Update( &preview );
            }
        }

        else if( evt->IsClick( BUT_LEFT ) )
        {
            if( !module )
            {
                // Pick the module to be placed
                module = m_frame->LoadModuleFromLibrary( wxEmptyString,
                                                         m_frame->Prj().PcbFootprintLibs(),
                                                         true, NULL );

                if( module == NULL )
                    continue;

                // Module has been added in LoadModuleFromLibrary(),
                // so we have to remove it before committing the change     @todo LEGACY
                board->Remove( module );
                module->SetPosition( wxPoint( cursorPos.x, cursorPos.y ) );

                // Add all the drawable parts to preview
                preview.Add( module );
                module->RunOnChildren( std::bind( &KIGFX::VIEW_GROUP::Add, &preview, _1 ) );
            }
            else
            {
                BOARD_COMMIT commit( m_frame );
                commit.Add( module );
                commit.Push( _( "Place a module" ) );

                // Remove from preview
                preview.Remove( module );
                module->RunOnChildren( std::bind( &KIGFX::VIEW_GROUP::Remove, &preview, _1 ) );
                module = NULL;  // to indicate that there is no module that we currently modify
            }

            bool placing = ( module != NULL );

            controls->SetAutoPan( placing );
            controls->CaptureCursor( placing );
            controls->ShowCursor( !placing );
        }

        else if( module && evt->IsMotion() )
        {
            module->SetPosition( wxPoint( cursorPos.x, cursorPos.y ) );
            view->Update( &preview );
//.........这里部分代码省略.........

//.........这里部分代码省略.........

                    if( !( changeFlags & CHT_DONE ) )
                        board->m_Modules->Add( boardItem );
                }

                view->Add( boardItem );
                break;
            }

            case CHT_REMOVE:
            {
                if( !m_editModules && aCreateUndoEntry )
                    undoList.PushItem( ITEM_PICKER( boardItem, UR_DELETED ) );

                switch( boardItem->Type() )
                {
                // Module items
                case PCB_PAD_T:
                case PCB_MODULE_EDGE_T:
                case PCB_MODULE_TEXT_T:
                    // This level can only handle module items when editing modules
                    if( !m_editModules )
                        break;

                    if( boardItem->Type() == PCB_MODULE_TEXT_T )
                    {
                        TEXTE_MODULE* text = static_cast<TEXTE_MODULE*>( boardItem );

                        // don't allow deletion of Reference or Value
                        if( text->GetType() != TEXTE_MODULE::TEXT_is_DIVERS )
                            break;
                    }

                    view->Remove( boardItem );

                    if( !( changeFlags & CHT_DONE ) )
                    {
                        MODULE* module = static_cast<MODULE*>( boardItem->GetParent() );
                        wxASSERT( module && module->Type() == PCB_MODULE_T );
                        module->Delete( boardItem );
                    }

                    board->m_Status_Pcb = 0; // it is done in the legacy view (ratsnest perhaps?)

                    break;

                // Board items
                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)
                case PCB_MARKER_T:              // a marker used to show something
                case PCB_ZONE_AREA_T:
                    itemsToDeselect.push_back( boardItem );

                    view->Remove( boardItem );

                    if( !( changeFlags & CHT_DONE ) )
                        board->Remove( boardItem );

                    break;

                case PCB_MODULE_T:
                {

void BOARD_COMMIT::Revert()
{
    PICKED_ITEMS_LIST undoList;
    KIGFX::VIEW* view = m_toolMgr->GetView();
    BOARD* board = (BOARD*) m_toolMgr->GetModel();
    auto connectivity = board->GetConnectivity();

    for( auto it = m_changes.rbegin(); it != m_changes.rend(); ++it )
    {
        COMMIT_LINE& ent = *it;
        BOARD_ITEM* item = static_cast<BOARD_ITEM*>( ent.m_item );
        BOARD_ITEM* copy = static_cast<BOARD_ITEM*>( ent.m_copy );
        int changeType = ent.m_type & CHT_TYPE;
        int changeFlags = ent.m_type & CHT_FLAGS;

        switch( changeType )
        {
        case CHT_ADD:
            if( !( changeFlags & CHT_DONE ) )
                break;

            view->Remove( item );
            connectivity->Remove( item );
            board->Remove( item );
            break;

        case CHT_REMOVE:
            if( !( changeFlags & CHT_DONE ) )
                break;

            if( item->Type() == PCB_MODULE_T )
            {
                MODULE* newModule = static_cast<MODULE*>( item );
                newModule->RunOnChildren( std::bind( &EDA_ITEM::ClearFlags, _1, SELECTED ) );
            }

            view->Add( item );
            connectivity->Add( item );
            board->Add( item );
            break;

        case CHT_MODIFY:
        {
            view->Remove( item );
            connectivity->Remove( item );

            item->SwapData( copy );
            item->ClearFlags( SELECTED );

            // Update all pads/drawings/texts, as they become invalid
            // for the VIEW after SwapData() called for modules
            if( item->Type() == PCB_MODULE_T )
            {
                MODULE* newModule = static_cast<MODULE*>( item );
                newModule->RunOnChildren( std::bind( &EDA_ITEM::ClearFlags, _1, SELECTED ) );
            }

            view->Add( item );
            connectivity->Add( item );
            delete copy;
            break;
        }

        default:
            wxASSERT( false );
            break;
        }
    }

    if ( !m_editModules )
        connectivity->RecalculateRatsnest();

    clear();
}

//.........这里部分代码省略.........
                    // Do not allow footprint text removal when not editing a module
                    if( !m_editModules )
                        break;

                    bool remove = true;

                    if( boardItem->Type() == PCB_MODULE_TEXT_T )
                    {
                        TEXTE_MODULE* text = static_cast<TEXTE_MODULE*>( boardItem );

                        switch( text->GetType() )
                        {
                            case TEXTE_MODULE::TEXT_is_REFERENCE:
                                //DisplayError( frame, _( "Cannot delete component reference." ) );
                                remove = false;
                                break;

                            case TEXTE_MODULE::TEXT_is_VALUE:
                                //DisplayError( frame, _( "Cannot delete component value." ) );
                                remove = false;
                                break;

                            case TEXTE_MODULE::TEXT_is_DIVERS:    // suppress warnings
                                break;

                            default:
                                assert( false );
                                break;
                        }
                    }

                    if( remove )
                    {
                        view->Remove( boardItem );

                        if( !( changeFlags & CHT_DONE ) )
                        {
                            MODULE* module = static_cast<MODULE*>( boardItem->GetParent() );
                            assert( module && module->Type() == PCB_MODULE_T );
                            module->Delete( boardItem );
                        }

                        board->m_Status_Pcb = 0; // it is done in the legacy view (ratsnest perhaps?)
                    }

                    break;
                }

                // Board items
                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)
                case PCB_MARKER_T:              // a marker used to show something
                case PCB_ZONE_T:                // SEG_ZONE items are now deprecated
                case PCB_ZONE_AREA_T:
                    view->Remove( boardItem );

                    if( !( changeFlags & CHT_DONE ) )
                        board->Remove( boardItem );

                    //ratsnest->Remove( boardItem );    // currently done by BOARD::Remove()
                    break;

void BOARD_COMMIT::Revert()
{
    PICKED_ITEMS_LIST undoList;
    KIGFX::VIEW* view = m_toolMgr->GetView();
    BOARD* board = (BOARD*) m_toolMgr->GetModel();
    RN_DATA* ratsnest = board->GetRatsnest();

    for( auto it = m_changes.rbegin(); it != m_changes.rend(); ++it )
    {
        COMMIT_LINE& ent = *it;
        BOARD_ITEM* item = static_cast<BOARD_ITEM*>( ent.m_item );
        BOARD_ITEM* copy = static_cast<BOARD_ITEM*>( ent.m_copy );

        switch( ent.m_type )
        {
        case CHT_ADD:
            if( item->Type() == PCB_MODULE_T )
            {
                MODULE* oldModule = static_cast<MODULE*>( item );
                oldModule->RunOnChildren( boost::bind( &KIGFX::VIEW::Remove, view, _1 ) );
            }

            view->Remove( item );
            ratsnest->Remove( item );
            break;

        case CHT_REMOVE:
            if( item->Type() == PCB_MODULE_T )
            {
                MODULE* newModule = static_cast<MODULE*>( item );
                newModule->RunOnChildren( boost::bind( &EDA_ITEM::ClearFlags, _1, SELECTED ) );
                newModule->RunOnChildren( boost::bind( &KIGFX::VIEW::Add, view, _1 ) );
            }

            view->Add( item );
            ratsnest->Add( item );
            break;

        case CHT_MODIFY:
        {
            if( item->Type() == PCB_MODULE_T )
            {
                MODULE* oldModule = static_cast<MODULE*>( item );
                oldModule->RunOnChildren( boost::bind( &KIGFX::VIEW::Remove, view, _1 ) );
            }

            view->Remove( item );
            ratsnest->Remove( item );

            item->SwapData( copy );

            item->ClearFlags( SELECTED );

            // Update all pads/drawings/texts, as they become invalid
            // for the VIEW after SwapData() called for modules
            if( item->Type() == PCB_MODULE_T )
            {
                MODULE* newModule = static_cast<MODULE*>( item );
                newModule->RunOnChildren( boost::bind( &EDA_ITEM::ClearFlags, _1, SELECTED ) );
                newModule->RunOnChildren( boost::bind( &KIGFX::VIEW::Add, view, _1 ) );
            }

            view->Add( item );
            ratsnest->Add( item );
            delete copy;
            break;
        }

        default:
            assert( false );
            break;
        }
    }

    ratsnest->Recalculate();

    clear();
}

//.........这里部分代码省略.........
            }

            if( ( source_module != NULL )
              && ( id == ID_MODEDIT_INSERT_MODULE_IN_BOARD ) ) // source not found
            {
                wxString msg;
                msg.Printf( _( "A footprint source was found on the main board" ) );
                msg << _( "\nCannot insert this footprint" );
                DisplayError( this, msg );
                break;
            }

            m_toolManager->RunAction( COMMON_ACTIONS::selectionClear, true );

            // Create the "new" module
            MODULE* newmodule = new MODULE( *module_in_edit );
            newmodule->SetParent( mainpcb );
            newmodule->SetLink( 0 );

            // Put the footprint in the main pcb linked list.
            mainpcb->Add( newmodule );

            if( source_module )         // this is an update command
            {
                // In the main board,
                // the new module replace the old module (pos, orient, ref, value
                // and connexions are kept)
                // and the source_module (old module) is deleted
                PICKED_ITEMS_LIST pickList;

                if( pcbframe->IsGalCanvasActive() )
                {
                    KIGFX::VIEW* view = pcbframe->GetGalCanvas()->GetView();
                    source_module->RunOnChildren( boost::bind( &KIGFX::VIEW::Remove, view, _1 ) );
                    view->Remove( source_module );
                }

                pcbframe->Exchange_Module( source_module, newmodule, &pickList );
                newmodule->SetTimeStamp( module_in_edit->GetLink() );

                if( pickList.GetCount() )
                    pcbframe->SaveCopyInUndoList( pickList, UR_UNSPECIFIED );
            }
            else        // This is an insert command
            {
                wxPoint cursor_pos = pcbframe->GetCrossHairPosition();

                pcbframe->SetCrossHairPosition( wxPoint( 0, 0 ) );
                pcbframe->PlaceModule( newmodule, NULL );
                newmodule->SetPosition( wxPoint( 0, 0 ) );
                pcbframe->SetCrossHairPosition( cursor_pos );
                newmodule->SetTimeStamp( GetNewTimeStamp() );
                pcbframe->SaveCopyInUndoList( newmodule, UR_NEW );
            }

            newmodule->ClearFlags();
            GetScreen()->ClrModify();
            pcbframe->SetCurItem( NULL );
            mainpcb->m_Status_Pcb = 0;

            if( pcbframe->IsGalCanvasActive() )
            {
                RN_DATA* ratsnest = pcbframe->GetBoard()->GetRatsnest();
                ratsnest->Update( newmodule );
                ratsnest->Recalculate();

bool PL_SELECTION_TOOL::selectMultiple()
{
    bool cancelled = false;     // Was the tool cancelled while it was running?
    m_multiple = true;          // Multiple selection mode is active
    KIGFX::VIEW* view = getView();

    KIGFX::PREVIEW::SELECTION_AREA area;
    view->Add( &area );

    while( OPT_TOOL_EVENT evt = Wait() )
    {
        if( evt->IsAction( &ACTIONS::cancelInteractive ) || evt->IsActivate() || evt->IsCancel() )
        {
            cancelled = true;
            break;
        }

        if( evt->IsDrag( BUT_LEFT ) )
        {
            // Start drawing a selection box
            area.SetOrigin( evt->DragOrigin() );
            area.SetEnd( evt->Position() );
            area.SetAdditive( m_additive );
            area.SetSubtractive( m_subtractive );

            view->SetVisible( &area, true );
            view->Update( &area );
            getViewControls()->SetAutoPan( true );
        }

        if( evt->IsMouseUp( BUT_LEFT ) )
        {
            getViewControls()->SetAutoPan( false );

            // End drawing the selection box
            view->SetVisible( &area, false );

            int width = area.GetEnd().x - area.GetOrigin().x;
            int height = area.GetEnd().y - area.GetOrigin().y;

            /* Selection mode depends on direction of drag-selection:
             * Left > Right : Select objects that are fully enclosed by selection
             * Right > Left : Select objects that are crossed by selection
             */
            bool windowSelection = width >= 0 ? true : false;

            // Construct an EDA_RECT to determine EDA_ITEM selection
            EDA_RECT selectionRect( (wxPoint)area.GetOrigin(), wxSize( width, height ) );

            selectionRect.Normalize();

            for( WS_DATA_ITEM* dataItem : WS_DATA_MODEL::GetTheInstance().GetItems() )
            {
                for( WS_DRAW_ITEM_BASE* item : dataItem->GetDrawItems() )
                {
                    if( item->HitTest( selectionRect, windowSelection ) )
                    {
                        if( m_subtractive )
                            unselect( item );
                        else
                            select( item );
                    }
                }
            }

            // Inform other potentially interested tools
            if( !m_selection.Empty() )
                m_toolMgr->ProcessEvent( EVENTS::SelectedEvent );

            break;  // Stop waiting for events
        }
    }

    getViewControls()->SetAutoPan( false );

    // Stop drawing the selection box
    view->Remove( &area );
    m_multiple = false;         // Multiple selection mode is inactive

    if( !cancelled )
        m_selection.ClearReferencePoint();

    return cancelled;
}