C++ VIEW::Add方法代码示例

bool InvokeDXFDialogBoardImport( PCB_BASE_FRAME* aCaller )
{
    DIALOG_DXF_IMPORT dlg( aCaller );
    bool success = ( dlg.ShowModal() == wxID_OK );

    if( success )
    {
        const std::list<BOARD_ITEM*>& list = dlg.GetImportedItems();
        PICKED_ITEMS_LIST picklist;

        BOARD* board = aCaller->GetBoard();
        KIGFX::VIEW* view = aCaller->GetGalCanvas()->GetView();

        std::list<BOARD_ITEM*>::const_iterator it, itEnd;
        for( it = list.begin(), itEnd = list.end(); it != itEnd; ++it )
        {
            BOARD_ITEM* item = *it;
            board->Add( item );

            ITEM_PICKER itemWrapper( item, UR_NEW );
            picklist.PushItem( itemWrapper );

            if( aCaller->IsGalCanvasActive() )
                view->Add( item );
        }

        aCaller->SaveCopyInUndoList( picklist, UR_NEW, wxPoint( 0, 0 ) );
        aCaller->OnModify();
    }

    return success;
}

bool InvokeDXFDialogModuleImport( PCB_BASE_FRAME* aCaller, MODULE* aModule )
{
    wxASSERT( aModule );

    DIALOG_DXF_IMPORT dlg( aCaller );
    bool success = ( dlg.ShowModal() == wxID_OK );

    if( success )
    {
        const std::list<BOARD_ITEM*>& list = dlg.GetImportedItems();
        KIGFX::VIEW* view = aCaller->GetGalCanvas()->GetView();

        aCaller->SaveCopyInUndoList( aModule, UR_MODEDIT );
        aCaller->OnModify();

        std::list<BOARD_ITEM*>::const_iterator it, itEnd;
        for( it = list.begin(), itEnd = list.end(); it != itEnd; ++it )
        {
            BOARD_ITEM* item = *it;
            BOARD_ITEM* converted = NULL;

            // Modules use different types for the same things,
            // so we need to convert imported items to appropriate classes.
            switch( item->Type() )
            {
            case PCB_LINE_T:
            {
                converted = new EDGE_MODULE( aModule );
                *static_cast<DRAWSEGMENT*>( converted ) = *static_cast<DRAWSEGMENT*>( item );
                aModule->Add( converted );
                static_cast<EDGE_MODULE*>( converted )->SetLocalCoord();
                delete item;
                break;
            }

            case PCB_TEXT_T:
            {
                converted = new TEXTE_MODULE( aModule );
                *static_cast<TEXTE_PCB*>( converted ) = *static_cast<TEXTE_PCB*>( item );
                aModule->Add( converted );
                static_cast<TEXTE_MODULE*>( converted )->SetLocalCoord();
                delete item;
                break;
            }

            default:
                wxLogDebug( wxT( "type %d currently not handled" ), item->Type() );
                break;
            }

            if( aCaller->IsGalCanvasActive() && converted )
                view->Add( converted );
        }
    }

    return success;
}

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;
        }
    }
}

bool GERBVIEW_FRAME::Read_EXCELLON_File( const wxString& aFullFileName )
{
    wxString msg;
    int layerId = GetActiveLayer();      // current layer used in GerbView
    GERBER_FILE_IMAGE_LIST* images = GetGerberLayout()->GetImagesList();
    auto gerber_layer = images->GetGbrImage( layerId );
    auto drill_layer = dynamic_cast<EXCELLON_IMAGE*>( gerber_layer );

    if( gerber_layer && !drill_layer )
    {
        // The active layer contains old gerber data we have to clear
        Erase_Current_DrawLayer( false );
    }

    if( drill_layer == nullptr )
    {
        drill_layer = new EXCELLON_IMAGE( layerId );
        layerId = images->AddGbrImage( drill_layer, layerId );
    }

    if( layerId < 0 )
    {
        DisplayError( this, _( "No room to load file" ) );
        return false;
    }

    // Read the Excellon drill file:
    bool success = drill_layer->LoadFile( aFullFileName );

    if( !success )
    {
        msg.Printf( _( "File %s not found" ), GetChars( aFullFileName ) );
        DisplayError( this, msg );
        return false;
    }

    // Display errors list
    if( drill_layer->GetMessages().size() > 0 )
    {
        HTML_MESSAGE_BOX dlg( this, _( "Error reading EXCELLON drill file" ) );
        dlg.ListSet( drill_layer->GetMessages() );
        dlg.ShowModal();
    }

    if( success )
    {
        EDA_DRAW_PANEL_GAL* canvas = GetGalCanvas();

        if( canvas )
        {
            KIGFX::VIEW* view = canvas->GetView();

            for( GERBER_DRAW_ITEM* item = drill_layer->GetItemsList(); item; item = item->Next() )
            {
                view->Add( (KIGFX::VIEW_ITEM*) item );
            }
        }
    }

    return success;
}

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;
}

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.........

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.........

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();
}

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.........

bool GERBVIEW_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 );

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

    while( OPT_TOOL_EVENT evt = Wait() )
    {
        if( 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 );
        }

        if( evt->IsMouseUp( BUT_LEFT ) )
        {
            // End drawing the selection box
            view->SetVisible( &area, false );

            // Mark items within the selection box as selected
            std::vector<KIGFX::VIEW::LAYER_ITEM_PAIR> selectedItems;

            // Filter the view items based on the selection box
            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;

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

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

            selectionRect.Normalize();

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

                if( !item || !selectable( item ) )
                    continue;

                /* 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
                 */

                if( width >= 0 )
                {
                    if( selectionBox.Contains( item->ViewBBox() ) )
                    {
                        if( m_subtractive )
                            unselect( item );
                        else
                            select( item );
                    }
                }
                else
                {
                    if( item->HitTest( selectionRect ) )
                    {
                        if( m_subtractive )
                            unselect( item );
                        else
                            select( item );
                    }

                }
            }

            if( m_selection.Size() == 1 )
                m_frame->SetCurItem( static_cast<GERBER_DRAW_ITEM*>( m_selection.Front() ) );
            else
                m_frame->SetCurItem( NULL );

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

            break;  // Stop waiting for events
        }
//.........这里部分代码省略.........

int PCBNEW_CONTROL::AppendBoard( const TOOL_EVENT& aEvent )
{
    int open_ctl;
    wxString fileName;
    PICKED_ITEMS_LIST undoListPicker;
    ITEM_PICKER picker( NULL, UR_NEW );

    PCB_EDIT_FRAME* editFrame = dynamic_cast<PCB_EDIT_FRAME*>( m_frame );
    BOARD* board = getModel<BOARD>();
    KIGFX::VIEW* view = getView();

    if( !editFrame )
        return 0;

    // Pick a file to append
    if( !AskLoadBoardFileName( editFrame, &open_ctl, &fileName, true ) )
        return 0;

    IO_MGR::PCB_FILE_T pluginType = plugin_type( fileName, open_ctl );
    PLUGIN::RELEASER pi( IO_MGR::PluginFind( pluginType ) );

    // keep track of existing items, in order to know what are the new items
    // (for undo command for instance)

    // Tracks are inserted, not appended, so mark the existing tracks to know what are the new tracks
    for( TRACK* track = board->m_Track; track; track = track->Next() )
        track->SetFlags( FLAG0 );

    // Other items are appended to the item list, so keep trace to the last existing item is enough
    MODULE* module = board->m_Modules.GetLast();
    BOARD_ITEM* drawing = board->m_Drawings.GetLast();
    int zonescount = board->GetAreaCount();

    // Keep also the count of copper layers, to adjust if necessary
    int initialCopperLayerCount = board->GetCopperLayerCount();
    LSET initialEnabledLayers = board->GetEnabledLayers();

    // Load the data
    try
    {
        PROPERTIES  props;
        char        xbuf[30];
        char        ybuf[30];

        // EAGLE_PLUGIN can use this info to center the BOARD, but it does not yet.
        sprintf( xbuf, "%d", editFrame->GetPageSizeIU().x );
        sprintf( ybuf, "%d", editFrame->GetPageSizeIU().y );

        props["page_width"]  = xbuf;
        props["page_height"] = ybuf;

        editFrame->GetDesignSettings().m_NetClasses.Clear();
        pi->Load( fileName, board, &props );
    }
    catch( const IO_ERROR& ioe )
    {
        wxString msg = wxString::Format( _( "Error loading board.\n%s" ), GetChars( ioe.errorText ));
        DisplayError( editFrame, msg );

        return 0;
    }

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

    // Process the new items
    for( TRACK* track = board->m_Track; track; track = track->Next() )
    {
        if( track->GetFlags() & FLAG0 )
        {
            track->ClearFlags( FLAG0 );
            continue;
        }

        picker.SetItem( track );
        undoListPicker.PushItem( picker );
        view->Add( track );
        m_toolMgr->RunAction( COMMON_ACTIONS::selectItem, true, track );
    }

    module = module ? module->Next() : board->m_Modules;

    for( ; module; module = module->Next() )
    {
        picker.SetItem( module );
        undoListPicker.PushItem( picker );

        module->RunOnChildren( boost::bind( &KIGFX::VIEW::Add, view, _1 ) );
        view->Add( module );
        m_toolMgr->RunAction( COMMON_ACTIONS::selectItem, true, module );
    }

    drawing = drawing ? drawing->Next() : board->m_Drawings;

    for( ; drawing; drawing = drawing->Next() )
    {
        picker.SetItem( drawing );
        undoListPicker.PushItem( picker );
        view->Add( drawing );
        m_toolMgr->RunAction( COMMON_ACTIONS::selectItem, true, drawing );
    }
//.........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( 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 BOARD_COMMIT::Push( const wxString& aMessage )
{
    // Objects potentially interested in changes:
    PICKED_ITEMS_LIST undoList;
    KIGFX::VIEW* view = m_toolMgr->GetView();
    BOARD* board = (BOARD*) m_toolMgr->GetModel();
    PCB_BASE_FRAME* frame = (PCB_BASE_FRAME*) m_toolMgr->GetEditFrame();
    RN_DATA* ratsnest = board->GetRatsnest();
    std::set<EDA_ITEM*> savedModules;

    if( Empty() )
        return;

    for( COMMIT_LINE& ent : m_changes )
    {
        int changeType = ent.m_type & CHT_TYPE;
        int changeFlags = ent.m_type & CHT_FLAGS;
        BOARD_ITEM* boardItem = static_cast<BOARD_ITEM*>( ent.m_item );

        // Module items need to be saved in the undo buffer before modification
        if( m_editModules )
        {
            // Be sure that we are storing a module
            if( ent.m_item->Type() != PCB_MODULE_T )
                ent.m_item = ent.m_item->GetParent();

            // We have not saved the module yet, so let's create an entry
            if( savedModules.count( ent.m_item ) == 0 )
            {
                if( !ent.m_copy )
                {
                    assert( changeType != CHT_MODIFY );     // too late to make a copy..
                    ent.m_copy = ent.m_item->Clone();
                }

                assert( ent.m_item->Type() == PCB_MODULE_T );
                assert( ent.m_copy->Type() == PCB_MODULE_T );

                ITEM_PICKER itemWrapper( ent.m_item, UR_CHANGED );
                itemWrapper.SetLink( ent.m_copy );
                undoList.PushItem( itemWrapper );
                frame->SaveCopyInUndoList( undoList, UR_CHANGED );

                savedModules.insert( ent.m_item );
                static_cast<MODULE*>( ent.m_item )->SetLastEditTime();
            }
        }

        switch( changeType )
        {
            case CHT_ADD:
            {
                if( !m_editModules )
                {
                    undoList.PushItem( ITEM_PICKER( boardItem, UR_NEW ) );

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

                    //ratsnest->Add( boardItem );       // TODO currently done by BOARD::Add()

                    if( boardItem->Type() == PCB_MODULE_T )
                    {
                        MODULE* mod = static_cast<MODULE*>( boardItem );
                        mod->RunOnChildren( boost::bind( &KIGFX::VIEW::Add, view, _1 ) );
                    }
                }
                else
                {
                    // modules inside modules are not supported yet
                    assert( boardItem->Type() != PCB_MODULE_T );

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

                view->Add( boardItem );
                break;
            }

            case CHT_REMOVE:
            {
                if( !m_editModules )
                {
                    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:
                {
                    // Do not allow footprint text removal when not editing a module
                    if( !m_editModules )
                        break;

                    bool remove = true;

//.........这里部分代码省略.........

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();
}