Merge pull request bigdataviewer#10 from haesleinhuepf/positionAndVie…

…wLogging

Implement ViewerTransformLogger and PositionLogger

src/main/java/sc/fiji/bdv/log/Logger.java

@@ -0,0 +1,7 @@
+package sc.fiji.bdv.log;
+
+public interface Logger
+{
+	void out( String msg );
+	void err( String msg );
+}

src/main/java/sc/fiji/bdv/log/Logs.java

@@ -0,0 +1,6 @@
+package sc.fiji.bdv.log;
+
+public class Logs
+{
+	public static String BDV = "BigDataViewer";
+}

src/main/java/sc/fiji/bdv/log/SystemLogger.java

@@ -0,0 +1,16 @@
+package sc.fiji.bdv.log;
+
+import sc.fiji.bdv.log.Logger;
+
+public class SystemLogger implements Logger
+{
+	public void out( String msg )
+	{
+		System.out.println( msg );
+	}
+
+	public void err( String msg )
+	{
+		System.err.println( msg );
+	}
+}

src/main/java/sc/fiji/bdv/navigate/PositionLogger.java

@@ -0,0 +1,32 @@
+package sc.fiji.bdv.navigate;
+
+import bdv.util.BdvHandle;
+import net.imglib2.RealPoint;
+import sc.fiji.bdv.log.Logger;
+import sc.fiji.bdv.log.Logs;
+import sc.fiji.bdv.log.SystemLogger;
+
+public class PositionLogger implements Runnable
+{
+	private final BdvHandle bdvHandle;
+	private final Logger logger;
+
+	public PositionLogger( BdvHandle bdvHandle )
+	{
+		this( bdvHandle, new SystemLogger() );
+	}
+
+	public PositionLogger( BdvHandle bdvHandle, Logger logger )
+	{
+		this.bdvHandle = bdvHandle;
+		this.logger = logger;
+	}
+
+	@Override
+	public void run()
+	{
+		final RealPoint realPoint = new RealPoint( 3 );
+		bdvHandle.getViewerPanel().getGlobalMouseCoordinates( realPoint );
+		logger.out( Logs.BDV + ": Position at Mouse: " + realPoint.toString() );
+	}
+}

src/main/java/sc/fiji/bdv/navigate/ViewerTransformLogger.java

@@ -0,0 +1,33 @@
+package sc.fiji.bdv.navigate;
+
+import bdv.util.BdvHandle;
+import net.imglib2.RealPoint;
+import net.imglib2.realtransform.AffineTransform3D;
+import sc.fiji.bdv.log.Logger;
+import sc.fiji.bdv.log.Logs;
+import sc.fiji.bdv.log.SystemLogger;
+
+public class ViewerTransformLogger implements Runnable
+{
+	private final BdvHandle bdvHandle;
+	private final Logger logger;
+
+	public ViewerTransformLogger( BdvHandle bdvHandle )
+	{
+		this( bdvHandle, new SystemLogger() );
+	}
+
+	public ViewerTransformLogger( BdvHandle bdvHandle, Logger logger )
+	{
+		this.bdvHandle = bdvHandle;
+		this.logger = logger;
+	}
+
+	@Override
+	public void run()
+	{
+		final AffineTransform3D view = new AffineTransform3D();
+		bdvHandle.getViewerPanel().getState().getViewerTransform( view );
+		logger.out( Logs.BDV + ": Viewer Transform: " + view.toString() );
+	}
+}