C++ SCH_LINE::ClearFlags方法代码示例

void SCH_EDIT_FRAME::BeginSegment( wxDC* DC, int type )
{
    SCH_LINE* segment;
    SCH_LINE* nextSegment;
    wxPoint   cursorpos = GetCrossHairPosition();

    // We should know if a segment is currently in progress
    segment = (SCH_LINE*) GetScreen()->GetCurItem();
    if( segment )   // a current item exists, but not necessary a currently edited item
    {
        if( !segment->GetFlags() || ( segment->Type() != SCH_LINE_T ) )
        {
            if( segment->GetFlags() )
            {
                wxLogDebug( wxT( "BeginSegment: item->GetFlags()== %X" ),
                    segment->GetFlags() );
            }
            // no wire, bus or graphic line in progress
            segment = NULL;
        }
    }

    if( !segment )      // first point : Create the first wire or bus segment
    {
        switch( type )
        {
        default:
            segment = new SCH_LINE( cursorpos, LAYER_NOTES );
            break;

        case LAYER_WIRE:
            segment = new SCH_LINE( cursorpos, LAYER_WIRE );

            /* A junction will be created later, when we'll know the
             * segment end position, and if the junction is really needed */
            break;

        case LAYER_BUS:
            segment = new SCH_LINE( cursorpos, LAYER_BUS );
            break;
        }

        segment->SetFlags( IS_NEW );
        s_wires.PushBack( segment );
        GetScreen()->SetCurItem( segment );

        // We need 2 segments to go from a given start pin to an end point when the horizontal
        // and vertical lines only switch is on.
        if( GetForceHVLines() )
        {
            nextSegment = new SCH_LINE( *segment );
            nextSegment->SetFlags( IS_NEW );
            s_wires.PushBack( nextSegment );
            GetScreen()->SetCurItem( nextSegment );
        }

        m_canvas->SetMouseCapture( DrawSegment, AbortCreateNewLine );
        SetRepeatItem( NULL );
    }
    else    // A segment is in progress: terminates the current segment and add a new segment.
    {
        SCH_LINE* prevSegment = segment->Back();

        // Be aware prevSegment can be null when the horizontal and vertical lines only switch is off
        // when we create the first segment.

        if( !GetForceHVLines() )
        {
            // If only one segment is needed and it has a zero length, do not create a new one.
            if( segment->IsNull() )
                return;
        }
        else
        {
            wxCHECK_RET( prevSegment != NULL, wxT( "Failed to create second line segment." ) );

            // If two segments are required and they both have zero length, do not
            // create a new one.
            if( prevSegment && prevSegment->IsNull() && segment->IsNull() )
                return;
        }

        m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );

        // Terminate the command if the end point is on a pin, junction, or another wire or bus.
        if( GetScreen()->IsTerminalPoint( cursorpos, segment->GetLayer() ) )
        {
            EndSegment( DC );
            return;
        }

        // Create a new segment, and chain it after the current new segment.
        nextSegment = new SCH_LINE( *segment );
        nextSegment->SetStartPoint( cursorpos );
        s_wires.PushBack( nextSegment );

        segment->SetEndPoint( cursorpos );
        segment->ClearFlags( IS_NEW );
        segment->SetFlags( SELECTED );
        nextSegment->SetFlags( IS_NEW );
//.........这里部分代码省略.........