How to use

getImage

method

in

org.pentaho.di.core.gui.GCInterface

painter.setMagnification( 0.25f );
painter.drawJob();
BufferedImage bufferedImage = (BufferedImage) gc.getImage();
int newWidth = bufferedImage.getWidth() - min.x;
int newHeigth = bufferedImage.getHeight() - min.y;

painter.setTranslationY( min.y );
painter.buildTransformationImage();
BufferedImage bufferedImage = (BufferedImage) gc.getImage();
int newWidth = bufferedImage.getWidth() - min.x;
int newHeigth = bufferedImage.getHeight() - min.y;

return (Image) gc.getImage();

public Image getTransformationImage( Device device, int x, int y, float magnificationFactor ) {
 GCInterface gc = new SWTGC( device, new Point( x, y ), iconsize );
 int gridSize =
  PropsUI.getInstance().isShowCanvasGridEnabled() ? PropsUI.getInstance().getCanvasGridSize() : 1;
 TransPainter transPainter =
  new TransPainter( gc, transMeta, new Point( x, y ), new SwtScrollBar( hori ), new SwtScrollBar( vert ),
   candidate, drop_candidate, selectionRegion, areaOwners, mouseOverSteps,
   PropsUI.getInstance().getIconSize(), PropsUI.getInstance().getLineWidth(), gridSize,
   PropsUI.getInstance().getShadowSize(), PropsUI.getInstance()
   .isAntiAliasingEnabled(), PropsUI.getInstance().getNoteFont().getName(), PropsUI.getInstance()
   .getNoteFont().getHeight(), trans, PropsUI.getInstance().isIndicateSlowTransStepsEnabled() );
 transPainter.setMagnification( magnificationFactor );
 transPainter.setStepLogMap( stepLogMap );
 transPainter.setStartHopStep( startHopStep );
 transPainter.setEndHopLocation( endHopLocation );
 transPainter.setNoInputStep( noInputStep );
 transPainter.setEndHopStep( endHopStep );
 transPainter.setCandidateHopType( candidateHopType );
 transPainter.setStartErrorHopStep( startErrorHopStep );
 transPainter.setShowTargetStreamsStep( showTargetStreamsStep );
 transPainter.buildTransformationImage();
 Image img = (Image) gc.getImage();
 gc.dispose();
 return img;
}