C++ EXCHG函数代码示例

void SCH_TEXT::Draw( EDA_DRAW_PANEL* panel, wxDC* DC, const wxPoint& aOffset,
                     GR_DRAWMODE DrawMode, EDA_COLOR_T Color )
{
    EDA_COLOR_T color;
    int         linewidth = ( m_Thickness == 0 ) ? GetDefaultLineThickness() : m_Thickness;

    linewidth = Clamp_Text_PenSize( linewidth, m_Size, m_Bold );

    if( Color >= 0 )
        color = Color;
    else
        color = ReturnLayerColor( m_Layer );

    GRSetDrawMode( DC, DrawMode );

    wxPoint text_offset = aOffset + GetSchematicTextOffset();
    EXCHG( linewidth, m_Thickness );            // Set the minimum width
    EDA_TEXT::Draw( panel, DC, text_offset, color, DrawMode, FILLED, UNSPECIFIED_COLOR );
    EXCHG( linewidth, m_Thickness );            // set initial value

    if( m_isDangling )
        DrawDanglingSymbol( panel, DC, m_Pos + aOffset, color );

    // Enable these line to draw the bounding box (debug tests purposes only)
#if 0
    {
        EDA_RECT BoundaryBox = GetBoundingBox();
        GRRect( panel->GetClipBox(), DC, BoundaryBox, 0, BROWN );
    }
#endif
}

void PS_PLOTTER::Arc( const wxPoint& centre, double StAngle, double EndAngle,
                      int radius, FILL_T fill, int width )
{
    wxASSERT( outputFile );
    if( radius <= 0 )
        return;

    if( StAngle > EndAngle )
        EXCHG( StAngle, EndAngle );

    SetCurrentLineWidth( width );

    // Calculate start point.
    DPOINT centre_dev = userToDeviceCoordinates( centre );
    double radius_dev = userToDeviceSize( radius );

    if( m_plotMirror )
    {
        if( m_mirrorIsHorizontal )
        {
            StAngle = 1800.0 -StAngle;
            EndAngle = 1800.0 -EndAngle;
            EXCHG( StAngle, EndAngle );
        }
        else
        {
            StAngle = -StAngle;
            EndAngle = -EndAngle;
        }
    }

    fprintf( outputFile, "%g %g %g %g %g arc%d\n", centre_dev.x, centre_dev.y,
             radius_dev, StAngle / 10.0, EndAngle / 10.0, fill );
}

void PCB_TARGET::Exchg( PCB_TARGET* source )
{
    EXCHG( m_Pos,   source->m_Pos );
    EXCHG( m_Width, source->m_Width );
    EXCHG( m_Size,  source->m_Size );
    EXCHG( m_Shape, source->m_Shape );
}

void SCH_BUS_ENTRY::SwapData( SCH_ITEM* aItem )
{
    wxCHECK_RET( (aItem != NULL) && (aItem->Type() == SCH_BUS_ENTRY_T),
                 wxT( "Cannot swap bus entry data with invalid item." ) );

    SCH_BUS_ENTRY* item = (SCH_BUS_ENTRY*)aItem;
    EXCHG( m_pos, item->m_pos );
    EXCHG( m_size, item->m_size );
    EXCHG( m_width, item->m_width );
}

void GERBER_PLOTTER::FlashPadOval( const wxPoint& pos, const wxSize& aSize, double orient,
                                   EDA_DRAW_MODE_T trace_mode )
{
    wxASSERT( outputFile );
    int x0, y0, x1, y1, delta;
    wxSize size( aSize );

    /* Plot a flashed shape. */
    if( ( orient == 0 || orient == 900 || orient == 1800 || orient == 2700 )
       && trace_mode == FILLED )
    {
        if( orient == 900 || orient == 2700 ) /* orientation turned 90 deg. */
            EXCHG( size.x, size.y );

        DPOINT pos_dev = userToDeviceCoordinates( pos );
        selectAperture( size, APERTURE::Oval );
        emitDcode( pos_dev, 3 );
    }
    else /* Plot pad as a segment. */
    {
        if( size.x > size.y )
        {
            EXCHG( size.x, size.y );

            if( orient < 2700 )
                orient += 900;
            else
                orient -= 2700;
        }

        if( trace_mode == FILLED )
        {
	    /* XXX to do: use an aperture macro to declare the rotated pad */
            /* The pad  is reduced to an oval with dy > dx */
            delta = size.y - size.x;
            x0    = 0;
            y0    = -delta / 2;
            x1    = 0;
            y1    = delta / 2;
            RotatePoint( &x0, &y0, orient );
            RotatePoint( &x1, &y1, orient );
            ThickSegment( wxPoint( pos.x + x0, pos.y + y0 ),
                           wxPoint( pos.x + x1, pos.y + y1 ),
                           size.x, trace_mode );
        }
        else
        {
            sketchOval( pos, size, orient, -1 );
        }
    }
}

void PLOTTER::Arc( const wxPoint& centre, double StAngle, double EndAngle, int radius,
                   FILL_T fill, int width )
{
    wxPoint   start, end;
    const int delta = 50;   // increment (in 0.1 degrees) to draw circles

    if( StAngle > EndAngle )
        EXCHG( StAngle, EndAngle );

    SetCurrentLineWidth( width );
    /* Please NOTE the different sign due to Y-axis flip */
    start.x = centre.x + KiROUND( cosdecideg( radius, -StAngle ) );
    start.y = centre.y + KiROUND( sindecideg( radius, -StAngle ) );
    MoveTo( start );
    for( int ii = StAngle + delta; ii < EndAngle; ii += delta )
    {
        end.x = centre.x + KiROUND( cosdecideg( radius, -ii ) );
        end.y = centre.y + KiROUND( sindecideg( radius, -ii ) );
        LineTo( end );
    }

    end.x = centre.x + KiROUND( cosdecideg( radius, -EndAngle ) );
    end.y = centre.y + KiROUND( sindecideg( radius, -EndAngle ) );
    FinishTo( end );
}

wxPoint GERBER_DRAW_ITEM::GetABPosition( const wxPoint& aXYPosition ) const
{
    /* Note: RS274Xrevd_e is obscure about the order of transforms:
     * For instance: Rotation must be made after or before mirroring ?
     * Note: if something is changed here, GetYXPosition must reflect changes
     */
    wxPoint abPos = aXYPosition + m_imageParams->m_ImageJustifyOffset;

    if( m_swapAxis )
        EXCHG( abPos.x, abPos.y );

    abPos  += m_layerOffset + m_imageParams->m_ImageOffset;
    abPos.x = KiROUND( abPos.x * m_drawScale.x );
    abPos.y = KiROUND( abPos.y * m_drawScale.y );
    double rotation = m_lyrRotation * 10 + m_imageParams->m_ImageRotation * 10;

    if( rotation )
        RotatePoint( &abPos, -rotation );

    // Negate A axis if mirrored
    if( m_mirrorA )
        NEGATE( abPos.x );

    // abPos.y must be negated when no mirror, because draw axis is top to bottom
    if( !m_mirrorB )
        NEGATE( abPos.y );
    return abPos;
}

void DIALOG_EESCHEMA_CONFIG::OnButtonDownClick( wxCommandEvent& event )
{
    wxArrayInt selections;

    m_ListLibr->GetSelections(selections);

    if ( selections.GetCount() <= 0 )   // No selection.
        return;

    // The last lib is selected. cannot move down it
    if( selections.Last() == (int)(m_ListLibr->GetCount()-1) )
        return;

    wxArrayString libnames = m_ListLibr->GetStrings();

    for( int ii = selections.GetCount()-1; ii >= 0; ii-- )
    {
        int jj = selections[ii];
        EXCHG( libnames[jj],  libnames[jj+1]);
    }

    m_ListLibr->Set( libnames );

    // Reselect previously selected names
    for( size_t ii = 0; ii < selections.GetCount(); ii++ )
    {
        int jj = selections[ii];
        m_ListLibr->SetSelection(jj+1);
    }

    m_LibListChanged = true;
}

/* Plot oval pad.
 */
void HPGL_PLOTTER::FlashPadOval( const wxPoint& pos, const wxSize& aSize, double orient,
                                 EDA_DRAW_MODE_T trace_mode )
{
    wxASSERT( outputFile );
    int     deltaxy, cx, cy;
    wxSize  size( aSize );

    /* The pad is reduced to an oval with size.y > size.x
     * (Oval vertical orientation 0)
     */
    if( size.x > size.y )
    {
        EXCHG( size.x, size.y );
        orient = AddAngles( orient, 900 );
    }

    deltaxy = size.y - size.x;     // distance between centers of the oval

    if( trace_mode == FILLED )
    {
        FlashPadRect( pos, wxSize( size.x, deltaxy + KiROUND( penDiameter ) ),
                      orient, trace_mode );
        cx = 0; cy = deltaxy / 2;
        RotatePoint( &cx, &cy, orient );
        FlashPadCircle( wxPoint( cx + pos.x, cy + pos.y ), size.x, trace_mode );
        cx = 0; cy = -deltaxy / 2;
        RotatePoint( &cx, &cy, orient );
        FlashPadCircle( wxPoint( cx + pos.x, cy + pos.y ), size.x, trace_mode );
    }
    else    // Plot in SKETCH mode.
    {
        sketchOval( pos, size, orient, KiROUND( penDiameter ) );
    }
}

wxPoint GERBER_DRAW_ITEM::GetXYPosition( const wxPoint& aABPosition )
{
    // do the inverse transform made by GetABPosition
    wxPoint xyPos = aABPosition;

    if( m_mirrorA )
        NEGATE( xyPos.x );

    if( !m_mirrorB )
        NEGATE( xyPos.y );

    double rotation = m_lyrRotation * 10 + m_imageParams->m_ImageRotation * 10;

    if( rotation )
        RotatePoint( &xyPos, rotation );

    xyPos.x = KiROUND( xyPos.x / m_drawScale.x );
    xyPos.y = KiROUND( xyPos.y / m_drawScale.y );
    xyPos  -= m_layerOffset + m_imageParams->m_ImageOffset;

    if( m_swapAxis )
        EXCHG( xyPos.x, xyPos.y );

    return xyPos - m_imageParams->m_ImageJustifyOffset;
}

int IsBusLabel( const char * LabelDrawList )
/**************************************************/

/* Routine qui verifie si le Label a une notation de type Bus
	Retourne 0 si non
	nombre de membres si oui
	met a jour FirstNumWireBus, LastNumWireBus et RootBusNameLength
*/

{
char * Num;
char BufLine[1024];
	
	if ( strchr(LabelDrawList,'[') == NULL )  /* 1er [ trouve : c'est une notation de Bus */
		return(0);

	strcpy(BufLine, LabelDrawList);

	Num = strtok(BufLine,"[");
	RootBusNameLength = strlen(Num);

	Num = strtok(NULL,".");
	FirstNumWireBus = atoi(Num);
	Num = strtok(NULL,".]");
	LastNumWireBus = atoi(Num);

	if( FirstNumWireBus < 0 )	  FirstNumWireBus = 0;
	if( LastNumWireBus < 0 )	 LastNumWireBus = 0;
	if( FirstNumWireBus > LastNumWireBus )
		{
		EXCHG( FirstNumWireBus, LastNumWireBus);
		}
	return(LastNumWireBus - FirstNumWireBus + 1 );
}

int gr_vline(int y1, int y2, int x)
{
	int i;
	if (y1 > y2) EXCHG(y1,y2);
	for (i=y1; i<=y2; i++ )
		gr_upixel( x, i );
	return 0;
}

int gr_vline(int y1, int y2, int x) {
	int i;
	if (y1 > y2) EXCHG(y1, y2);
	for (i = y1; i <= y2; i++)
		//		gr_upixel( x, i );
		DATA[ROWSIZE*i + x] = COLOR;
	return 0;
}

int gr_hline(int x1, int x2, int y)
{
	int i;

	if (x1 > x2) EXCHG(x1,x2);
	for (i=x1; i<=x2; i++ )
		gr_upixel( i, y );
	return 0;
}

int gr_hline(int x1, int x2, int y) {
	int i;
	int	t;

	if (x1 > x2) EXCHG(x1, x2);
	t = ROWSIZE * y;
	for (i = x1; i <= x2; i++) {
		//		gr_upixel( i, y );
		DATA[t + i] = COLOR;
	}
	return 0;
}