bool DIALOG_KEEPOUT_AREA_PROPERTIES::TransferDataFromWindow()
{
    // Init keepout parameters:
    m_zonesettings.SetIsKeepout( true );
    m_zonesettings.SetDoNotAllowTracks( m_cbTracksCtrl->GetValue() );
    m_zonesettings.SetDoNotAllowVias( m_cbViasCtrl->GetValue() );
    m_zonesettings.SetDoNotAllowCopperPour( m_cbCopperPourCtrl->GetValue() );

    // Test for not allowed items: should have at least one item not allowed:
    if( ! m_zonesettings.GetDoNotAllowTracks() &&
        ! m_zonesettings.GetDoNotAllowVias() &&
        ! m_zonesettings.GetDoNotAllowCopperPour() )
    {
        DisplayError( NULL, _("Tracks, vias, and pads are allowed. The keepout will have no effect." ) );
        return false;
    }

    if( m_zonesettings.m_Layers.count() == 0 )
    {
        DisplayError( NULL, _( "No layers selected." ) );
        return false;
    }

    switch( m_OutlineAppearanceCtrl->GetSelection() )
    {
    case 0: m_zonesettings.m_Zone_HatchingStyle = ZONE_CONTAINER::NO_HATCH;      break;
    case 1: m_zonesettings.m_Zone_HatchingStyle = ZONE_CONTAINER::DIAGONAL_EDGE; break;
    case 2: m_zonesettings.m_Zone_HatchingStyle = ZONE_CONTAINER::DIAGONAL_FULL; break;
    }

    if( m_config )
        m_config->Write( ZONE_NET_OUTLINES_STYLE_KEY, (long) m_zonesettings.m_Zone_HatchingStyle );

    m_zonesettings.m_Zone_45_Only = m_cbConstrainCtrl->GetValue();
    m_zonesettings.m_ZonePriority = 0;  // for a keepout, this param is not used.

    *m_ptr = m_zonesettings;
    return true;
}
int PCB_EDIT_FRAME::Begin_Zone( wxDC* DC )
{
    ZONE_SETTINGS zoneInfo = GetZoneSettings();

    // verify if s_CurrentZone exists (could be deleted since last selection) :
    int ii;
    for( ii = 0; ii < GetBoard()->GetAreaCount(); ii++ )
    {
        if( s_CurrentZone == GetBoard()->GetArea( ii ) )
            break;
    }

    if( ii >= GetBoard()->GetAreaCount() ) // Not found: could be deleted since last selection
    {
        s_AddCutoutToCurrentZone = false;
        s_CurrentZone = NULL;
    }

    // If no zone contour in progress, a new zone is being created:
    if( !GetBoard()->m_CurrentZoneContour )
    {
        if( GetToolId() == ID_PCB_KEEPOUT_AREA_BUTT &&
            getActiveLayer() >= FIRST_NON_COPPER_LAYER )
        {
            DisplayError( this,
                          _( "Error: a keepout area is allowed only on copper layers" ) );
            return 0;
        }
        else
            GetBoard()->m_CurrentZoneContour = new ZONE_CONTAINER( GetBoard() );
    }

    ZONE_CONTAINER* zone = GetBoard()->m_CurrentZoneContour;

    if( zone->GetNumCorners() == 0 )    // Start a new contour: init zone params (net, layer ...)
    {
        if( !s_CurrentZone )            // A new outline is created, from scratch
        {
            ZONE_EDIT_T edited;

            // Init zone params to reasonable values
            zone->SetLayer( getActiveLayer() );

            // Prompt user for parameters:
            m_canvas->SetIgnoreMouseEvents( true );

            if( zone->IsOnCopperLayer() )
            {
                // Put a zone on a copper layer
                if( GetBoard()->GetHighLightNetCode() > 0 )
                {
                    zoneInfo.m_NetcodeSelection = GetBoard()->GetHighLightNetCode();

                    zone->SetNet( zoneInfo.m_NetcodeSelection );
                    zone->SetNetNameFromNetCode( );
                }
                double tmp = ZONE_THERMAL_RELIEF_GAP_MIL;
                wxGetApp().GetSettings()->Read( ZONE_THERMAL_RELIEF_GAP_STRING_KEY, &tmp );
                zoneInfo.m_ThermalReliefGap = KiROUND( tmp * IU_PER_MILS);

                tmp = ZONE_THERMAL_RELIEF_COPPER_WIDTH_MIL;
                wxGetApp().GetSettings()->Read( ZONE_THERMAL_RELIEF_COPPER_WIDTH_STRING_KEY,
                                                &tmp );
                zoneInfo.m_ThermalReliefCopperBridge = KiROUND( tmp * IU_PER_MILS );

                tmp = ZONE_CLEARANCE_MIL;
                wxGetApp().GetSettings()->Read( ZONE_CLEARANCE_WIDTH_STRING_KEY,
                                                &tmp );
                zoneInfo.m_ZoneClearance = KiROUND( tmp * IU_PER_MILS );

                tmp = ZONE_THICKNESS_MIL;
                wxGetApp().GetSettings()->Read( ZONE_MIN_THICKNESS_WIDTH_STRING_KEY,
                                                &tmp );
                zoneInfo.m_ZoneMinThickness = KiROUND( tmp * IU_PER_MILS );

                zoneInfo.m_CurrentZone_Layer = zone->GetLayer();

                if( GetToolId() == ID_PCB_KEEPOUT_AREA_BUTT )
                {
                    zoneInfo.SetIsKeepout( true );
                    edited = InvokeKeepoutAreaEditor( this, &zoneInfo );
                }
                else
                {
                    zoneInfo.SetIsKeepout( false );
                    edited = InvokeCopperZonesEditor( this, &zoneInfo );
                }
            }
            else   // Put a zone on a non copper layer (technical layer)
            {
                zoneInfo.SetIsKeepout( false );
                zoneInfo.m_NetcodeSelection = 0;     // No net for non copper zones
                edited = InvokeNonCopperZonesEditor( this, zone, &zoneInfo );
            }

            m_canvas->MoveCursorToCrossHair();
            m_canvas->SetIgnoreMouseEvents( false );

            if( edited == ZONE_ABORT )
                return 0;

            // Switch active layer to the selected zone layer
            setActiveLayer( zoneInfo.m_CurrentZone_Layer );

            SetZoneSettings( zoneInfo );
        }
        else
        {
            // Start a new contour: init zone params (net and layer) from an existing
            // zone (add cutout or similar zone)

            zoneInfo.m_CurrentZone_Layer = s_CurrentZone->GetLayer();
            setActiveLayer( s_CurrentZone->GetLayer() );

            zoneInfo << *s_CurrentZone;

            SetZoneSettings( zoneInfo );
        }

        // Show the Net for zones on copper layers
        if( zoneInfo.m_CurrentZone_Layer < FIRST_NO_COPPER_LAYER &&
            ! zoneInfo.GetIsKeepout() )
        {
            if( s_CurrentZone )
            {
                zoneInfo.m_NetcodeSelection = s_CurrentZone->GetNet();
                GetBoard()->SetZoneSettings( zoneInfo );
            }

            if( GetBoard()->IsHighLightNetON() )
            {
                HighLight( DC );    // Remove old highlight selection
            }

            GetBoard()->SetHighLightNet( zoneInfo.m_NetcodeSelection );
            HighLight( DC );
        }

        if( !s_AddCutoutToCurrentZone )
            s_CurrentZone = NULL; // the zone is used only once ("add similar zone" command)
    }

    // if first segment
    if( zone->GetNumCorners() == 0 )
    {
        zone->SetFlags( IS_NEW );
        zone->SetTimeStamp( GetNewTimeStamp() );

        zoneInfo.ExportSetting( *zone );

        zone->m_Poly->Start( zoneInfo.m_CurrentZone_Layer,
                             GetScreen()->GetCrossHairPosition().x,
                             GetScreen()->GetCrossHairPosition().y,
                             zone->GetHatchStyle() );

        zone->AppendCorner( GetScreen()->GetCrossHairPosition() );

        if( Drc_On && (m_drc->Drc( zone, 0 ) == BAD_DRC) && zone->IsOnCopperLayer() )
        {
            zone->ClearFlags();
            zone->RemoveAllContours();

            // use the form of SetCurItem() which does not write to the msg panel,
            // SCREEN::SetCurItem(), so the DRC error remains on screen.
            // PCB_EDIT_FRAME::SetCurItem() calls DisplayInfo().
            GetScreen()->SetCurItem( NULL );
            DisplayError( this,
                          _( "DRC error: this start point is inside or too close an other area" ) );
            return 0;
        }

        SetCurItem( zone );
        m_canvas->SetMouseCapture( Show_New_Edge_While_Move_Mouse, Abort_Zone_Create_Outline );
    }
    else    // edge in progress:
    {
        ii = zone->GetNumCorners() - 1;

        // edge in progress : the current corner coordinate was set
        // by Show_New_Edge_While_Move_Mouse
        if( zone->GetCornerPosition( ii - 1 ) != zone->GetCornerPosition( ii ) )
        {
            if( !Drc_On || !zone->IsOnCopperLayer() || ( m_drc->Drc( zone, ii - 1 ) == OK_DRC ) )
            {
                // Ok, we can add a new corner
                if( m_canvas->IsMouseCaptured() )
                    m_canvas->CallMouseCapture( DC, wxPoint(0,0), false );
                zone->AppendCorner( GetScreen()->GetCrossHairPosition() );
                SetCurItem( zone );     // calls DisplayInfo().
                if( m_canvas->IsMouseCaptured() )
                    m_canvas->CallMouseCapture( DC, wxPoint(0,0), false );
            }
        }
    }

    return zone->GetNumCorners();
}
int DRAWING_TOOL::drawZone( bool aKeepout )
{
    ZONE_CONTAINER* zone = NULL;
    DRAWSEGMENT line45;
    DRAWSEGMENT* helperLine = NULL;  // we will need more than one helper line

    // if one day it is possible to draw zones in the footprint editor,
    // then hereby I'm letting you know that this tool does not handle UR_MODEDIT undo yet
    assert( !m_editModules );

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

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

    Activate();

    VECTOR2I origin;
    int numPoints = 0;
    bool direction45 = false;       // 45 degrees only mode

    // Main loop: keep receiving events
    while( OPT_TOOL_EVENT evt = Wait() )
    {
        bool updatePreview = false;            // should preview be updated
        VECTOR2I cursorPos = m_controls->GetCursorPosition();

        // Enable 45 degrees lines only mode by holding control
        if( direction45 != ( evt->Modifier( MD_CTRL ) && numPoints > 0 ) )
        {
            direction45 = evt->Modifier( MD_CTRL );

            if( direction45 )
            {
                preview.Add( &line45 );
                make45DegLine( helperLine, &line45 );
            }
            else
            {
                preview.Remove( &line45 );
                helperLine->SetEnd( wxPoint( cursorPos.x, cursorPos.y ) );
            }

            updatePreview = true;
        }

        if( evt->IsCancel() || evt->IsActivate() )
        {
            if( numPoints > 0 )         // cancel the current zone
            {
                delete zone;
                zone = NULL;
                m_controls->SetAutoPan( false );
                m_controls->CaptureCursor( false );

                if( direction45 )
                {
                    preview.Remove( &line45 );
                    direction45 = false;
                }

                preview.FreeItems();
                updatePreview = true;

                numPoints = 0;
            }
            else                        // there is no zone currently drawn - just stop the tool
                break;

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

        else if( evt->IsClick( BUT_LEFT ) || evt->IsDblClick( BUT_LEFT ) )
        {
            // Check if it is double click / closing line (so we have to finish the zone)
            if( evt->IsDblClick( BUT_LEFT ) || ( numPoints > 0 && cursorPos == origin ) )
            {
                if( numPoints > 2 )     // valid zone consists of more than 2 points
                {
                    assert( zone->GetNumCorners() > 2 );

                    // Finish the zone
                    if( direction45 )
                        zone->AppendCorner( cursorPos == origin ? line45.GetStart() : line45.GetEnd() );

                    zone->Outline()->CloseLastContour();
                    zone->Outline()->RemoveNullSegments();

                    m_board->Add( zone );
                    m_view->Add( zone );

                    if( !aKeepout )
                        static_cast<PCB_EDIT_FRAME*>( m_frame )->Fill_Zone( zone );

                    zone->ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
                    m_board->GetRatsnest()->Update( zone );

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

                    zone = NULL;
                }
                else
                {
                    delete zone;
                    zone = NULL;
                }

                numPoints = 0;
                m_controls->SetAutoPan( false );
                m_controls->CaptureCursor( false );

                if( direction45 )
                {
                    preview.Remove( &line45 );
                    direction45 = false;
                }

                preview.FreeItems();
                updatePreview = true;
            }
            else
            {
                if( numPoints == 0 )        // it's the first click
                {
                    // Get the current default settings for zones
                    ZONE_SETTINGS zoneInfo = m_frame->GetZoneSettings();
                    zoneInfo.m_CurrentZone_Layer = m_frame->GetScreen()->m_Active_Layer;
                    zoneInfo.SetIsKeepout( aKeepout );

                    m_controls->SetAutoPan( true );
                    m_controls->CaptureCursor( true );

                    // Show options dialog
                    ZONE_EDIT_T dialogResult;

                    if( aKeepout )
                        dialogResult = InvokeKeepoutAreaEditor( m_frame, &zoneInfo );
                    else
                    {
                        if( IsCopperLayer( zoneInfo.m_CurrentZone_Layer ) )
                            dialogResult = InvokeCopperZonesEditor( m_frame, &zoneInfo );
                        else
                            dialogResult = InvokeNonCopperZonesEditor( m_frame, NULL, &zoneInfo );
                    }

                    if( dialogResult == ZONE_ABORT )
                    {
                        m_controls->SetAutoPan( false );
                        m_controls->CaptureCursor( false );
                        continue;
                    }

                    // Apply the selected settings
                    zone = new ZONE_CONTAINER( m_board );
                    zoneInfo.ExportSetting( *zone );
                    m_frame->GetGalCanvas()->SetTopLayer( zoneInfo.m_CurrentZone_Layer );

                    // Add the first point
                    zone->Outline()->Start( zoneInfo.m_CurrentZone_Layer,
                                            cursorPos.x, cursorPos.y,
                                            zone->GetHatchStyle() );
                    origin = cursorPos;

                    // Helper line represents the currently drawn line of the zone polygon
                    helperLine = new DRAWSEGMENT;
                    helperLine->SetShape( S_SEGMENT );
                    helperLine->SetWidth( 1 );
                    helperLine->SetLayer( zoneInfo.m_CurrentZone_Layer );
                    helperLine->SetStart( wxPoint( cursorPos.x, cursorPos.y ) );
                    helperLine->SetEnd( wxPoint( cursorPos.x, cursorPos.y ) );
                    line45 = *helperLine;

                    preview.Add( helperLine );
                }
                else
                {
                    zone->AppendCorner( helperLine->GetEnd() );
                    helperLine = new DRAWSEGMENT( *helperLine );
                    helperLine->SetStart( helperLine->GetEnd() );
                    preview.Add( helperLine );
                }

                ++numPoints;
                updatePreview = true;
            }
        }

        else if( evt->IsMotion() && numPoints > 0 )
        {
            // 45 degree lines
            if( direction45 )
                make45DegLine( helperLine, &line45 );
            else
                helperLine->SetEnd( wxPoint( cursorPos.x, cursorPos.y ) );

            // Show a preview of the item
            updatePreview = true;
        }

        if( updatePreview )
            preview.ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
    }

    m_controls->ShowCursor( false );
    m_controls->SetSnapping( false );
    m_controls->SetAutoPan( false );
    m_controls->CaptureCursor( false );
    m_view->Remove( &preview );

    m_frame->SetToolID( ID_NO_TOOL_SELECTED, wxCURSOR_DEFAULT, wxEmptyString );

    return 0;
}