Merge branch 'feature/custom_scrollbar' into develop

README.md

@@ -30,25 +30,43 @@ Legend:
 * Mouse Scroll wheel: MScrl
 * Context any means Name List, Value List or Waveform
 
-| Input     | Modifier | Context  | Action                            |
-|-----------|----------|----------|-----------------------------------|
-| LMB klick |          | any      | select                            |
-| LMB klick | Shift    | Waveform | move selected marker to position  |
-| LMB klick | Control  | Waveform | move cursor to position           |
-| LMB drag  |          | Waveform | zoom to range                     |
-| MMB klick |          | Waveform | move selected marker to position  |
-| MScrl     |          | any      | scroll window up/down             |
-| MScrl     | Shift    | any      | scroll window left/right          |
-| Key left  |          | Waveform | scroll window to the left (slow)  |
-| Key right |          | Waveform | scroll window to the right (slow) |
-| Key left  | Shift    | Waveform | scroll window to the left (fast)  |
-| Key right | Shift    | Waveform | scroll window to the right (fast) |
-| Key up    |          | Waveform | move selection up                 |
-| Key down  |          | Waveform | move selection down               |
-| Key up    | Control  | Waveform | move selected track up            |
-| Key down  | Control  | Waveform | move selected track down          |
-| Key +     | Control  | Waveform | zoom in                           |
-| Key -     | Control  | Waveform | zoom out                          |
-| Key Pos1  |          | Waveform | jump to selected marker           |
-| Key End   |          | Waveform | jump to cursor                    |
-| Key Del   |          | any      | delete selected entries           |
+| Input      | Modifier | Context  | Action                            |
+|------------|----------|----------|-----------------------------------|
+| LMB click  |          | any      | select                            |
+| LMB click  | Shift    | Waveform | move selected marker to position  |
+| LMB click  | Control  | Waveform | move cursor to position           |
+| LMB drag   |          | Waveform | zoom to range                     |
+| MMB click  |          | Waveform | move selected marker to position  |
+| MScrl      |          | any      | scroll window up/down             |
+| MScrl      | Shift    | any      | scroll window left/right          |
+| MScrl      | Control  | Waveform | zoom in/out                       |
+| Key left   |          | Waveform | scroll window to the left (slow)  |
+| Key right  |          | Waveform | scroll window to the right (slow) |
+| Key left   | Shift    | Waveform | scroll window to the left (fast)  |
+| Key right  | Shift    | Waveform | scroll window to the right (fast) |
+| Key up     |          | Waveform | move selection up                 |
+| Key down   |          | Waveform | move selection down               |
+| Key up     | Control  | Waveform | move selected track up            |
+| Key down   | Control  | Waveform | move selected track down          |
+| Key +      | Control  | Waveform | zoom in                           |
+| Key -      | Control  | Waveform | zoom out                          |
+| Key Pos1   |          | Waveform | jump to selected marker           |
+| Key End    |          | Waveform | jump to cursor                    |
+| Key Del    |          | any      | delete selected entries           |
+| LMB click  |          | ZoomBar  | increment/decrement 1 page        |
+| LMB drag   |          | ZoomBar  | drag both markers (pan)           |
+| LMB drag   | Control  | ZoomBar  | drag one marker (zoom)            |
+| MMB drag   |          | ZoomBar  | drag one marker (zoom)            |
+| xMB dclick |          | ZoomBar  | pan to position                   |
+| MScrl      |          | ZoomBar  | scroll window left/right          |
+| MScrl      | Shift    | ZoomBar  | scroll window left/right double speed |
+| MScrl      | Control  | ZoomBar  | zoom in/out                       |
+| Key left   |          | ZoomBar  | scroll window to the left (slow)  |
+| Key right  |          | ZoomBar  | scroll window to the right (slow) |
+| Key up     |          | ZoomBar  | scroll window to the left (slow)  |
+| Key down   |          | ZoomBar  | scroll window to the right (slow) |
+| Key PgUp   |          | ZoomBar  | scroll window to the left (fast)  |
+| Key PgDown |          | ZoomBar  | scroll window to the right (fast) |
+| Key Pos1   |          | ZoomBar  | scroll to begin                   |
+| Key End    |          | ZoomBar  | scroll to end                     |
+

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/DatabaseUiPlugin.java

@@ -13,6 +13,7 @@ package com.minres.scviewer.database.ui.swt;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Plugin;
 import org.eclipse.core.runtime.Status;
+import org.eclipse.wb.swt.SWTResourceManager;
 import org.osgi.framework.BundleContext;
 
 public class DatabaseUiPlugin extends Plugin {
@@ -24,6 +25,7 @@ public class DatabaseUiPlugin extends Plugin {
 
 	@Override
 	public void stop(BundleContext context) throws Exception {
+		SWTResourceManager.dispose();
 		getLog().log(new Status(IStatus.OK, "org.eclipse.e4.core", "Stopping org.eclipse.e4.core bundle..."));
 	}
 }

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/TrackAreaPainter.java

@@ -19,7 +19,7 @@ import org.eclipse.swt.graphics.Rectangle;
 import com.minres.scviewer.database.ui.WaveformColors;
 
 public class TrackAreaPainter implements IPainter {
-	
+
 	/**
 	 * 
 	 */
@@ -35,14 +35,15 @@ public class TrackAreaPainter implements IPainter {
 	}
 
 	public void paintArea(Projection proj, Rectangle a) {
-	    Rectangle area = proj.unProject(new Rectangle(a.x, a.y+waveCanvas.rulerHeight, a.width, a.height-waveCanvas.rulerHeight));
-	    proj.setBackground(this.waveCanvas.styleProvider.getColor(WaveformColors.TRACK_BG_EVEN));
-	    proj.setFillRule(SWT.FILL_EVEN_ODD);
-	    proj.fillRectangle(area);
+		Rectangle area = proj.unProject(new Rectangle(a.x, a.y+waveCanvas.rulerHeight, a.width, a.height-waveCanvas.rulerHeight));
+		proj.setBackground(this.waveCanvas.styleProvider.getColor(WaveformColors.TRACK_BG_EVEN));
+		proj.setFillRule(SWT.FILL_EVEN_ODD);
+		proj.fillRectangle(area);
 		if(trackVerticalOffset.size()>0){
 			Integer firstKey=trackVerticalOffset.floorKey(area.y);
 			if(firstKey==null) firstKey=trackVerticalOffset.firstKey();
 			Integer lastKey = trackVerticalOffset.floorKey(area.y+area.height);
+			//if(lastKey==null) lastKey= trackVerticalOffset.lastKey();
 			Rectangle subArea = new Rectangle(area.x, 0, area.width, 0);
 			if(lastKey.equals(firstKey)){
 				subArea.y=firstKey;
@@ -61,9 +62,9 @@ public class TrackAreaPainter implements IPainter {
 
 	public void addTrackPainter(IWaveformPainter trackPainter){
 		trackVerticalOffset.put(trackPainter.getVerticalOffset()+waveCanvas.rulerHeight, trackPainter);
-		
+
 	}
-	
+
 	public int getHeight(){
 		if(trackVerticalOffset.size()==0) return 1;
 		return trackVerticalOffset.lastKey() + trackVerticalOffset.lastEntry().getValue().getHeight();

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/WaveformCanvas.java

@@ -46,21 +46,24 @@ import com.minres.scviewer.database.ui.IWaveformZoom;
 import com.minres.scviewer.database.ui.TrackEntry;
 import com.minres.scviewer.database.ui.ZoomKind;
 import com.minres.scviewer.database.ui.swt.Constants;
+import com.minres.scviewer.database.ui.swt.internal.slider.ZoomBar;
 
 public class WaveformCanvas extends Canvas implements IWaveformZoom{
 
 	public static final long ZOOM_FIT = -2;
 
 	public static final long ZOOM_FULL = -1;
+
+	private static final int INITIAL_ZOOM_BAR_MAX = 1000;
 	
 	private boolean doubleBuffering = true;
 
 	IWaveformStyleProvider styleProvider;
 
 	private int scaleMagnitude = 6;
-	
+
 	private long scaleFactor = Constants.POWERS_OF_TEN[scaleMagnitude];
-	
+
 	private long maxTime;
 
 	protected Point origin; /* original size */
@@ -81,22 +84,23 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 
 	private List<CursorPainter> cursorPainters;
 
+	private ZoomBar horizontal;
+
+	private int[] lastHorSelection;
+	
+	private long sliderScaleFactor = 1;
+	
+	private ScrollBar vertical;
+
 	HashMap<IWaveform, IWaveformPainter> wave2painterMap;
-	/**
-	 * Constructor for ScrollableCanvas.
-	 * 
-	 * @param parent
-	 *            the parent of this control.super(parent, style | SWT.DOUBLE_BUFFERED | SWT.NO_BACKGROUND | SWT.NO_REDRAW_RESIZE | SWT.V_SCROLL | SWT.H_SCROLL);
-	 * @param style
-	 *            the style of this control.
-	 */
-	public WaveformCanvas(final Composite parent, int style, IWaveformStyleProvider styleProvider) {
-		super(parent, style | SWT.DOUBLE_BUFFERED | SWT.NO_BACKGROUND | SWT.V_SCROLL | SWT.H_SCROLL);
+
+	public WaveformCanvas(final Composite parent, int style, IWaveformStyleProvider styleProvider, ZoomBar.IProvider scrollbarProvider) {
+		super(parent, (style & ~SWT.H_SCROLL) | SWT.DOUBLE_BUFFERED | SWT.NO_BACKGROUND | SWT.V_SCROLL );
 		this.styleProvider=styleProvider;
 		addControlListener(new ControlAdapter() { /* resize listener. */
 			@Override
 			public void controlResized(ControlEvent event) {
-				syncScrollBars();
+				syncSb();
 			}
 		});
 		addPaintListener((final PaintEvent event) -> paint(event.gc));
@@ -106,6 +110,8 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 		cursorPainters= new ArrayList<>();
 		wave2painterMap=new HashMap<>();
 
+		horizontal = scrollbarProvider.getScrollBar();
+		vertical = getVerticalBar();
 		initScrollBars();
 		// order is important: it is bottom to top
 		trackAreaPainter=new TrackAreaPainter(this);
@@ -114,10 +120,10 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 		painterList.add(arrowPainter);
 		rulerPainter=new RulerPainter(this);
 		painterList.add(rulerPainter);
-		CursorPainter cp = new CursorPainter(this, scaleFactor * 10, cursorPainters.size()-1);
+		CursorPainter cp = new CursorPainter(this, getScale() * 10, cursorPainters.size()-1);
 		painterList.add(cp);
 		cursorPainters.add(cp);
-		CursorPainter marker = new CursorPainter(this, scaleFactor * 100, cursorPainters.size()-1);
+		CursorPainter marker = new CursorPainter(this, getScale() * 100, cursorPainters.size()-1);
 		painterList.add(marker);
 		cursorPainters.add(marker);
 		wave2painterMap=new HashMap<>();
@@ -149,15 +155,9 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 
 	public void setOrigin(int x, int y) {
 		checkWidget();
-		ScrollBar hBar = getHorizontalBar();
-		if(x<=0) hBar.setSelection(-x);
-		x = -hBar.getSelection();
-		ScrollBar vBar = getVerticalBar();
-		if(y<=0) vBar.setSelection(-y);
-		y = -vBar.getSelection();
 		origin.x = x;
 		origin.y = y;
-		syncScrollBars();
+		syncSb();
 	}
 
 	@Override
@@ -167,14 +167,20 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 
 	public void setMaxTime(long maxTime) {
 		this.maxTime = maxTime;
-		syncScrollBars();
+		if(maxTime>INITIAL_ZOOM_BAR_MAX) {
+			long maxBarTime = maxTime;
+			while(maxBarTime>Integer.MAX_VALUE)	maxBarTime/=1000;
+			horizontal.setMaximum((int) maxBarTime);
+		}
+		sliderScaleFactor = maxTime/horizontal.getMaximum();
+		syncSb();
 	}
 
 	@Override
 	public long getScale() {
 		return scaleFactor;
 	}
-	
+
 	@Override
 	public void setScale(long factor) {
 		setScalingFactor(factor, (getMaxVisibleTime()+getMinVisibleTime())/2);
@@ -206,37 +212,41 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 			factor=1;
 		else if(factor>maxFactor)
 			factor=maxFactor;
-		if(factor!=scaleFactor || (getMaxVisibleTime()+getMinVisibleTime()/2) != centerTime) {
-			scaleFactor = factor;
-			scaleMagnitude = 0;
-			for(int i=Constants.POWERS_OF_TEN.length-1; i>0; i--) {
-				if(scaleFactor>=Constants.POWERS_OF_TEN[i]) {
-					scaleMagnitude = i;
-					break;
-				}
-			}
+		if(factor!=getScale() || (getMaxVisibleTime()+getMinVisibleTime()/2) != centerTime) {
+			updateScaleFactor(factor);
 			ITx tx = arrowPainter.getTx();
 			arrowPainter.setTx(null);
 			/*
 			 * xc = tc/oldScaleFactor
 			 * xoffs = xc+origin.x
 			 * xcn = tc/newScaleFactor
-			 * t0n = (xcn-xoffs)*scaleFactor
+			 * t0n = (xcn-xoffs)*getScale()
 			 */
 			long xoffs = clientAreaWidth/2;
-			long xcn=centerTime/scaleFactor; // new total x-offset
+			long xcn=centerTime/getScale(); // new total x-offset
 			long originX=xcn-xoffs;
 			if(originX>0) {
 				origin.x=(int) -originX; // new cursor time offset relative to left border
 			}else {
 				origin.x=0;
 			}
-			syncScrollBars();
+			syncSb();
 			arrowPainter.setTx(tx);    		
 			redraw();
 		}
 	}
 
+	private void updateScaleFactor(long factor) {
+		scaleFactor = factor;
+		scaleMagnitude = 0;
+		for(int i=Constants.POWERS_OF_TEN.length-1; i>0; i--) {
+			if(scaleFactor>=Constants.POWERS_OF_TEN[i]) {
+				scaleMagnitude = i;
+				break;
+			}
+		}
+	}
+
 	@Override
 	public String timeToString(long time) {
 		int idx = scaleMagnitude/3;
@@ -245,7 +255,7 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 	}
 
 	public long getTimeForOffset(int xOffset){
-		return (xOffset-origin.x) * scaleFactor;
+		return (xOffset-origin.x) * getScale();
 	}
 
 	public void addPainter(IPainter painter) {
@@ -265,7 +275,7 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 	void clearAllWaveformPainter(boolean update) {
 		trackAreaPainter.trackVerticalOffset.clear();
 		wave2painterMap.clear();
-		if(update) syncScrollBars();
+		if(update) syncSb();
 	}
 
 	public void addWaveformPainter(IWaveformPainter painter) {
@@ -275,7 +285,7 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 	void addWaveformPainter(IWaveformPainter painter, boolean update) {
 		trackAreaPainter.addTrackPainter(painter);
 		wave2painterMap.put(painter.getTrackEntry().waveform, painter);
-		if(update) syncScrollBars();
+		if(update) syncSb();
 	}
 
 	public List<CursorPainter> getCursorPainters() {
@@ -284,26 +294,41 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 
 	/* Initialize the scrollbar and register listeners. */
 	private void initScrollBars() {
-		ScrollBar horizontal = getHorizontalBar();
 		horizontal.setEnabled(false);
 		horizontal.setVisible(true);
 		horizontal.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent event) {
-				if (painterList.isEmpty())
-					return;
-				setOrigin(-((ScrollBar) event.widget).getSelection(), origin.y);
+				if (!painterList.isEmpty()) {
+					int[] sel = horizontal.getSelection();
+					long lowerTime = sel[0]*sliderScaleFactor;
+					long upperTime = sel[1]*sliderScaleFactor;
+					if(sel[1]-sel[0] != lastHorSelection[1]-lastHorSelection[0]) {
+						long time_diff = upperTime-lowerTime;
+						long factor = time_diff/getClientArea().width;
+						setScalingFactor(factor, lowerTime+time_diff/2);
+					} else {
+						origin.x = -(int) (lowerTime/getScale());
+						WaveformCanvas.this.getDisplay().asyncExec(() -> {redraw();});
+					}
+					lastHorSelection=sel;
+				}
 			}
 		});
-		ScrollBar vertical = getVerticalBar();
+		horizontal.setMinimum(0);
+		horizontal.setMaximum(INITIAL_ZOOM_BAR_MAX);
+		lastHorSelection = horizontal.getSelection();
+		
 		vertical.setEnabled(false);
 		vertical.setVisible(true);
 		vertical.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent event) {
-				if (painterList.isEmpty())
-					return;
-				setOrigin(origin.x, -((ScrollBar) event.widget).getSelection());
+				if (!painterList.isEmpty()) {
+					origin.y=-vertical.getSelection();
+					fireSelectionEvent();
+					WaveformCanvas.this.getDisplay().asyncExec(() -> {redraw();});
+				}
 			}
 		});
 	}
@@ -313,50 +338,48 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 	 * range, it will correct it. This function considers only following factors
 	 * :<b> transform, image size, client area</b>.
 	 */
-	public void syncScrollBars() {
-		if (painterList.isEmpty()) {
-			redraw();
-			return;
+	public void syncSb() {
+		if (!painterList.isEmpty()) {
+			syncHSb();
+			syncVSb();
+			fireSelectionEvent();
 		}
-		int height = trackAreaPainter.getHeight(); // incl. Ruler
-		long width = maxTime / scaleFactor;
-		Rectangle clientArea=getClientArea();
-		ScrollBar horizontal = getHorizontalBar();
-		horizontal.setIncrement(getClientArea().width / 100);
-		horizontal.setPageIncrement(getClientArea().width);
-		int clientWidthw = clientArea.width;
-		if (width > clientWidthw) { /* image is wider than client area */
-			horizontal.setMinimum(0);
-			horizontal.setMaximum((int)width);
-			horizontal.setEnabled(true);
-			if (-origin.x > horizontal.getMaximum() - clientWidthw) {
-				origin.x = -horizontal.getMaximum() + clientWidthw;
-			}
-		} else { /* image is narrower than client area */
-			horizontal.setEnabled(false);
-		}
-		horizontal.setThumb(clientWidthw);
-		horizontal.setSelection(-origin.x);
+		redraw();
+	}
 
-		ScrollBar vertical = getVerticalBar();
-		vertical.setIncrement(getClientArea().height / 100);
-		vertical.setPageIncrement(getClientArea().height);
-		int clientHeighth = clientArea.height;
-		if (height > clientHeighth) { /* image is higher than client area */
+	private void syncVSb() {
+		Rectangle clientArea=getClientArea();
+		int height = trackAreaPainter.getHeight(); // incl. Ruler
+		int clientHeight = clientArea.height;
+		vertical.setIncrement(clientHeight / 100);
+		vertical.setPageIncrement(clientHeight/2);
+		if (height > clientHeight) { /* image is higher than client area */
 			vertical.setMinimum(0);
 			vertical.setMaximum(height);
 			vertical.setEnabled(true);
-			if ( -origin.y > vertical.getMaximum() - clientHeighth) {
-				origin.y = -vertical.getMaximum() + clientHeighth;
+			if ( -origin.y > vertical.getMaximum() - clientHeight) {
+				origin.y = -vertical.getMaximum() + clientHeight;
 			}
 		} else { /* image is less higher than client area */
-			vertical.setMaximum(clientHeighth);
+			vertical.setMaximum(clientHeight);
 			vertical.setEnabled(false);
 		}
-		vertical.setThumb(clientHeighth);
+		vertical.setThumb(clientHeight);
 		vertical.setSelection(-origin.y);
-		redraw();
-		fireSelectionEvent();
+	}
+
+	private void syncHSb() {
+		horizontal.setEnabled(wave2painterMap.size()>0);
+		Rectangle clientArea=getClientArea();
+		int clientWidth = clientArea.width;
+		if(sliderScaleFactor>0) {
+			int lower = (int) ( (           -origin.x  * getScale()) / sliderScaleFactor);
+			int upper = (int) (((clientWidth-origin.x) * getScale()) / sliderScaleFactor);
+			lastHorSelection = new int[] {Math.max(lower,0), Math.min(upper, horizontal.getMaximum())};
+			horizontal.setSelection(lastHorSelection);
+		}
+		long width = maxTime / getScale();
+		horizontal.setButtonsEnabled(width > clientWidth);
 	}
 
 	/* Paint function */
@@ -406,7 +429,7 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 					result.add(entry.getValue().getTrackEntry());
 				}
 			} else if (p instanceof CursorPainter) {
-				if (Math.abs(point.x - origin.x - ((CursorPainter) p).getTime()/scaleFactor) < 2) {
+				if (Math.abs(point.x - origin.x - ((CursorPainter) p).getTime()/getScale()) < 2) {
 					result.add(p);
 				}
 			}
@@ -434,11 +457,11 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 	}
 
 	public void reveal(ITx tx) {
-		int lower = (int) (tx.getBeginTime() / scaleFactor);
-		int higher = (int) (tx.getEndTime() / scaleFactor);
+		int lower = (int) (tx.getBeginTime() / getScale());
+		int higher = (int) (tx.getEndTime() / getScale());
 		Point size = getSize();
-		size.x -= getVerticalBar().getSize().x + 2;
-		size.y -= getHorizontalBar().getSize().y;
+		size.x -= vertical.getSize().x + 2;
+		size.y -= horizontal.getSize().y;
 		if (lower < -origin.x) {
 			setOrigin(-lower, origin.y);
 		} else if (higher > (size.x - origin.x)) {
@@ -467,9 +490,8 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 			if(te.waveform == waveform) {
 				Point size = getSize();
 				size.y -=+rulerHeight;
-				ScrollBar sb = getHorizontalBar();
-				if((sb.getStyle()&SWT.SCROLLBAR_OVERLAY)!=0 && sb.isVisible())
-					size.y-=  getHorizontalBar().getSize().y;
+				if((horizontal.getStyle()&SWT.SCROLLBAR_OVERLAY)!=0 && horizontal.isVisible())
+					size.y-=  horizontal.getSize().y;
 				int top = te.vOffset;
 				int bottom = top + styleProvider.getTrackHeight();
 				if (top < -origin.y) {
@@ -482,10 +504,10 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 	}
 
 	public void reveal(long time) {
-		int scaledTime = (int) (time / scaleFactor);
+		int scaledTime = (int) (time / getScale());
 		Point size = getSize();
-		size.x -= getVerticalBar().getSize().x + 2;
-		size.y -= getHorizontalBar().getSize().y;
+		size.x -= vertical.getSize().x + 2;
+		size.y -= horizontal.getSize().y;
 		if (scaledTime < -origin.x) {
 			setOrigin(-scaledTime+10, origin.y);
 		} else if (scaledTime > (size.x - origin.x)) {
@@ -495,7 +517,7 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 
 	@Override
 	public void centerAt(long time) {
-		int scaledTime = (int) (time / scaleFactor);
+		int scaledTime = (int) (time / getScale());
 		int newX = -scaledTime+getWidth()/2;
 		setOrigin(newX>0?0:newX, origin.y);
 	}
@@ -532,15 +554,15 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 		}
 	}
 
-	
+
 	@Override
 	public long getMaxVisibleTime() {
-		return (getClientArea().width-origin.x)*scaleFactor;
+		return (getClientArea().width-origin.x)*getScale();
 	}
 
 	@Override
 	public long getMinVisibleTime() {
-		return -origin.x * scaleFactor;
+		return -origin.x * getScale();
 	}
 
 	@Override
@@ -548,7 +570,7 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 		long duration = getMaxVisibleTime()-getMinVisibleTime();
 		if(time>0) {
 			if((time+duration)<getMaxTime()) {
-				int scaledTime = (int) (time / scaleFactor);
+				int scaledTime = (int) (time / getScale());
 				setOrigin(-scaledTime, origin.y);
 			}
 		} else {

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/WaveformView.java

@@ -91,6 +91,7 @@ import com.minres.scviewer.database.ui.IWaveformStyleProvider;
 import com.minres.scviewer.database.ui.IWaveformView;
 import com.minres.scviewer.database.ui.IWaveformZoom;
 import com.minres.scviewer.database.ui.TrackEntry;
+import com.minres.scviewer.database.ui.swt.internal.slider.ZoomBar;
 
 public class WaveformView implements IWaveformView {
 
@@ -112,6 +113,10 @@ public class WaveformView implements IWaveformView {
 
 	private final Canvas valueList;
 
+	private final Control nameFill;
+	
+	private final Control valueFill;
+
 	final WaveformCanvas waveformCanvas;
 
 	final ToolTipHandler toolTipHandler;
@@ -204,7 +209,7 @@ public class WaveformView implements IWaveformView {
 					long endTime = waveformCanvas.getTimeForOffset(end.x);
 					if(startTime<endTime) {
 						waveformCanvas.setVisibleRange(startTime, endTime);
-					} else {
+					} else if(start.x!=end.x){
 						long targetTimeRange = startTime-endTime;
 						long currentTimeRange = waveformCanvas.getMaxVisibleTime() - waveformCanvas.getMinVisibleTime();
 						long factor = currentTimeRange/targetTimeRange *waveformCanvas.getScale();
@@ -266,11 +271,24 @@ public class WaveformView implements IWaveformView {
 			switch (e.type) {
 			case SWT.MouseWheel:
 				if((e.stateMask & SWT.CTRL) != 0) {
-					if(e.count<0)
+					if(e.count<0) // up scroll
 						waveformCanvas.setScale(waveformCanvas.getScale()*11/10);
-					else
+					else // down scroll
 						waveformCanvas.setScale(waveformCanvas.getScale()*10/11);
-				} 
+					e.doit=false;
+				} else if((e.stateMask & SWT.SHIFT) != 0) {
+					long upper = waveformCanvas.getMaxVisibleTime();
+					long lower = waveformCanvas.getMinVisibleTime();
+					long duration = upper-lower;
+					if(e.count<0) { // up scroll
+						long newLower = Math.min(waveformCanvas.getMaxTime()-duration, lower+duration/10);
+						waveformCanvas.setMinVisibleTime(newLower);
+					} else {// down scroll
+						long newLower = Math.max(0, lower-duration/10);
+						waveformCanvas.setMinVisibleTime(newLower);
+					}
+					e.doit=false;
+				}
 				break;
 			case SWT.MouseDown:
 				start = new Point(e.x, e.y);
@@ -330,8 +348,26 @@ public class WaveformView implements IWaveformView {
 		rightSash.setBackground(SWTResourceManager.getColor(SWT.COLOR_GRAY));
 
 		Composite valuePane = new Composite(rightSash, SWT.NONE);
-		waveformCanvas = new WaveformCanvas(rightSash, SWT.NONE, styleProvider);
-
+		
+		Composite waveformPane = new Composite(rightSash, SWT.NONE);
+		GridLayout gl_waveformPane = new GridLayout(1, false);
+		gl_waveformPane.verticalSpacing = 0;
+		gl_waveformPane.marginWidth = 0;
+		gl_waveformPane.marginHeight = 0;
+		waveformPane.setLayout(gl_waveformPane);
+		
+		waveformCanvas = new WaveformCanvas(waveformPane, SWT.NONE | SWT.V_SCROLL /*| SWT.H_SCROLL*/, styleProvider, new ZoomBar.IProvider() {
+			
+			@Override
+			public ZoomBar getScrollBar() {
+				ZoomBar timeSliderPane = new ZoomBar(waveformPane, SWT.NONE);
+				GridData gd_timeSliderPane = new GridData(SWT.FILL, SWT.BOTTOM, false, false, 1, 1);
+				timeSliderPane.setLayoutData(gd_timeSliderPane);
+				return timeSliderPane;
+			}
+		});
+		waveformCanvas.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
+		
 		// create the name pane
 		createTextPane(namePane, "Name");
 
@@ -347,7 +383,10 @@ public class WaveformView implements IWaveformView {
 			@Override
 			public void controlResized(ControlEvent e) {
 				nameListScrolled.getVerticalBar().setVisible(false);
-
+				if(nameListScrolled.getSize().y == nameList.getSize().y) {
+					((GridData)nameFill.getLayoutData()).heightHint=18;
+					namePane.layout();
+				}
 			}
 		});
 		nameList = new Canvas(nameListScrolled, SWT.NONE) {
@@ -366,7 +405,8 @@ public class WaveformView implements IWaveformView {
 		});
 		nameList.addMouseListener(nameValueMouseListener);
 		nameListScrolled.setContent(nameList);
-
+		nameFill = createFill(namePane);
+		
 		createTextPane(valuePane, "Value");
 
 		valuePane.setBackground(SWTResourceManager.getColor(SWT.COLOR_WIDGET_BACKGROUND));
@@ -379,7 +419,10 @@ public class WaveformView implements IWaveformView {
 			@Override
 			public void controlResized(ControlEvent e) {
 				valueListScrolled.getVerticalBar().setVisible(false);
-
+				if(valueListScrolled.getSize().y == valueList.getSize().y) {
+					((GridData)valueFill.getLayoutData()).heightHint=18;
+					valuePane.layout();
+				}
 			}
 		});
 		valueList = new Canvas(valueListScrolled, SWT.NONE) {
@@ -398,6 +441,7 @@ public class WaveformView implements IWaveformView {
 		});
 		valueList.addMouseListener(nameValueMouseListener);
 		valueListScrolled.setContent(valueList);
+		valueFill = createFill(valuePane);
 
 		waveformCanvas.setMaxTime(1);
 		waveformCanvas.addPaintListener(waveformMouseListener);
@@ -457,6 +501,15 @@ public class WaveformView implements IWaveformView {
 	    });
 	}
 
+	private Control createFill(Composite pane) {
+		Label cLabel = new Label(pane, SWT.NONE);
+		cLabel.setBackground(SWTResourceManager.getColor(SWT.COLOR_WIDGET_BACKGROUND));
+		GridData gd_cLabel = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1);
+		gd_cLabel.heightHint = 0;
+		cLabel.setLayoutData(gd_cLabel);
+		return cLabel;
+	}
+
 	private void createTextPane(Composite namePane, String text) {
 		GridLayout glNamePane = new GridLayout(1, false);
 		glNamePane.verticalSpacing = 0;
@@ -522,7 +575,7 @@ public class WaveformView implements IWaveformView {
 			tracksVerticalHeight += streamEntry.height;
 			even = !even;
 		}
-		waveformCanvas.syncScrollBars();
+		waveformCanvas.syncSb();
 		nameList.setSize(nameMaxWidth + 15, tracksVerticalHeight);
 		nameListScrolled.setMinSize(nameMaxWidth + 15, tracksVerticalHeight);
 		nameList.redraw();

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/slider/ActionTimer.java

@@ -0,0 +1,35 @@
+package com.minres.scviewer.database.ui.swt.internal.slider;
+
+import org.eclipse.swt.widgets.Display;
+
+public class ActionTimer implements Runnable {
+
+	public static final int INITIAL_DELAY = 300;
+	public static final int FAST_DELAY = 50;
+
+	private final Display display;
+	private final TimerAction timerAction;
+
+	public interface TimerAction extends Runnable {
+		boolean isEnabled();
+	}
+
+	public ActionTimer( TimerAction timerAction, Display display ) {
+		this.display = display;
+		this.timerAction = timerAction;
+	}
+
+	public void activate() {
+		if( timerAction.isEnabled() ) {
+			display.timerExec( INITIAL_DELAY, this );
+		}
+	}
+
+	@Override
+	public void run() {
+		if( timerAction.isEnabled() ) {
+			timerAction.run();
+			display.timerExec( FAST_DELAY, this );
+		}
+	}
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/slider/ImageButton.java

@@ -0,0 +1,192 @@
+package com.minres.scviewer.database.ui.swt.internal.slider;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.SWTException;
+import org.eclipse.swt.events.MouseAdapter;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseTrackAdapter;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Event;
+
+public class ImageButton extends Composite
+{
+	private Image   hoverImage;
+	private Image   normalImage;
+	private Image   pressedImage;
+	private Image   disabledImage;
+	private int     width;
+	private int     height;
+	private boolean hover;
+	private boolean pressed;
+	private boolean autoFire;
+	private ActionTimer actionTimer;
+	private ActionTimer.TimerAction timerAction;
+
+	public ImageButton(Composite parent, int style)	{
+		super(parent, style);		
+		timerAction = new ActionTimer.TimerAction() {
+			@Override
+			public void run() {
+				notifyListeners();
+			}
+			@Override
+			public boolean isEnabled() {
+				return pressed;
+			}
+		};
+		actionTimer = new ActionTimer(timerAction, this.getDisplay() );
+		addListener(SWT.Dispose, event ->  {
+			if (hoverImage != null)	hoverImage.dispose();
+			if (normalImage != null) normalImage.dispose();
+			if (pressedImage != null) pressedImage.dispose();
+			if (disabledImage != null) disabledImage.dispose();
+		});
+		addListener(SWT.Paint, event -> {
+			paintControl(event);
+		});
+		addMouseTrackListener(new MouseTrackAdapter() {
+			public void mouseEnter(MouseEvent arg0) {
+				if(isEnabled()) {
+					hover=true;
+					redraw();
+				}
+			}
+			public void mouseExit(MouseEvent arg0) {
+				if(isEnabled()) {
+					hover=false;
+					redraw();
+				}
+			}
+		});
+		addMouseListener(new MouseAdapter() {
+			@Override
+			public void mouseDown(MouseEvent e) {
+				if(isEnabled()) {
+					pressed=true;
+					notifyListeners();
+					if(autoFire) actionTimer.activate();
+					redraw();
+				}
+			}
+
+			@Override
+			public void mouseUp(MouseEvent e) {
+				pressed=false;
+				redraw();
+			}
+		});
+	}
+
+	private void paintControl(Event event) { 
+		GC gc = event.gc;
+		if (hoverImage != null)	{
+			if(pressed)
+				gc.drawImage(pressedImage, 1, 1);
+			else if(hover) {
+				gc.drawImage(hoverImage, 1, 1);
+			} else if(isEnabled()){
+				gc.drawImage(normalImage, 1, 1);
+			} else
+				gc.drawImage(disabledImage, 1, 1);
+		}
+	}
+
+	public void setImage(Image[] imgs) {
+		assert(imgs.length==3);
+		Display d = Display.getDefault();
+		normalImage =   new Image(d, imgs[0], SWT.IMAGE_COPY);
+		hoverImage =    new Image(d, imgs[1], SWT.IMAGE_COPY);
+		pressedImage =  new Image(d, imgs[2], SWT.IMAGE_COPY);
+		disabledImage = new Image(d, imgs[0], SWT.IMAGE_DISABLE);
+		width = imgs[0].getBounds().width;
+		height = imgs[0].getBounds().height;
+		redraw();
+	}
+
+	@Override
+	public Point computeSize(int wHint, int hHint, boolean changed) {
+		int overallWidth = width;
+		int overallHeight = height;
+		if (wHint != SWT.DEFAULT && wHint < overallWidth)
+			overallWidth = wHint;
+		if (hHint != SWT.DEFAULT && hHint < overallHeight)
+			overallHeight = hHint;
+		return new Point(overallWidth + 2, overallHeight + 2);
+	}
+	/**
+	 * Adds the listener to the collection of listeners who will be notified when
+	 * the user changes the receiver's value, by sending it one of the messages
+	 * defined in the <code>SelectionListener</code> interface.
+	 * <p>
+	 * <code>widgetSelected</code> is called when the user changes the receiver's
+	 * value. <code>widgetDefaultSelected</code> is not called.
+	 * </p>
+	 *
+	 * @param listener the listener which should be notified
+	 *
+	 * @exception IllegalArgumentException
+	 *                <ul>
+	 *                <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+	 *                </ul>
+	 * @exception SWTException
+	 *                <ul>
+	 *                <li>ERROR_WIDGET_DISPOSED - if the receiver has been
+	 *                disposed</li>
+	 *                <li>ERROR_THREAD_INVALID_ACCESS - if not called from the
+	 *                thread that created the receiver</li>
+	 *                </ul>
+	 *
+	 * @see SelectionListener
+	 * @see #removeSelectionListener
+	 */
+	public void addSelectionListener(final SelectionListener listener) {
+		checkWidget();
+		SelectionListenerUtil.addSelectionListener(this, listener);
+	}
+
+	/**
+	 * Removes the listener from the collection of listeners who will be notified
+	 * when the user changes the receiver's value.
+	 *
+	 * @param listener the listener which should no longer be notified
+	 *
+	 * @exception IllegalArgumentException
+	 *                <ul>
+	 *                <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+	 *                </ul>
+	 * @exception SWTException
+	 *                <ul>
+	 *                <li>ERROR_WIDGET_DISPOSED - if the receiver has been
+	 *                disposed</li>
+	 *                <li>ERROR_THREAD_INVALID_ACCESS - if not called from the
+	 *                thread that created the receiver</li>
+	 *                </ul>
+	 *
+	 * @see SelectionListener
+	 * @see #addSelectionListener
+	 */
+	public void removeSelectionListener(final SelectionListener listener) {
+		checkWidget();
+		SelectionListenerUtil.removeSelectionListener(this, listener);
+	}
+
+	private void notifyListeners() {
+		Event e = new Event();
+		e.widget=this;
+		e.type=SWT.Selection;
+		SelectionListenerUtil.fireSelectionListeners(this,e);
+	}
+
+	public boolean isAutoFire() {
+		return autoFire;
+	}
+
+	public void setAutoFire(boolean autoFire) {
+		this.autoFire = autoFire;
+	}
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/slider/RangeSlider.java

@@ -0,0 +1,631 @@
+package com.minres.scviewer.database.ui.swt.internal.slider;
+
+import java.text.Format;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseTrackAdapter;
+import org.eclipse.swt.events.PaintEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Canvas;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.wb.swt.SWTResourceManager;
+
+public class RangeSlider extends Canvas {
+
+	private static final int NONE = 0;
+	private static final int UPPER = 1 << 0;
+	private static final int LOWER = 1 << 1;
+	private static final int BOTH = UPPER | LOWER;
+
+	private final int minHeight;
+	private final int markerWidth;
+	private final int thumbWidth = 0;
+	private final Image[] slider, sliderHover, sliderDrag;
+	
+	private int minimum;
+	private int maximum;
+	private int lowerValue;
+	private int upperValue;
+	
+	private int increment;
+	private int pageIncrement;
+	private int selectedElement;
+	private boolean upperHover, lowerHover;
+	private int previousUpperValue, previousLowerValue;
+	private int startDragUpperValue, startDragLowerValue;
+	private Point startDragPoint;
+	private final boolean isFullSelection=false;
+	private final boolean isHighQuality;
+	private final boolean isOn;
+	private Format toolTipFormatter;
+	private String clientToolTipText;
+	private StringBuffer toolTip;
+	private Point coordUpper;
+	private Point coordLower;
+
+	public RangeSlider(final Composite parent, final int style) {
+		super(parent, SWT.DOUBLE_BUFFERED | ((style & SWT.BORDER) == SWT.BORDER ? SWT.BORDER : SWT.NONE));
+		slider = new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "marker_l.png"),
+				SWTResourceManager.getImage(this.getClass(), "marker_r.png")};
+		sliderHover = new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "marker_l_hover.png"),
+				SWTResourceManager.getImage(this.getClass(), "marker_r_hover.png")};
+		sliderDrag = new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "marker_l_pressed.png"),
+				SWTResourceManager.getImage(this.getClass(), "marker_r_pressed.png")};
+		Rectangle imgSize = slider[0].getBounds();
+		minHeight =imgSize.height+2;
+		markerWidth = imgSize.width;
+		minimum = lowerValue = 0;
+		maximum = upperValue = 100;
+		increment = 1;
+		pageIncrement = 10;
+		isHighQuality = (style & SWT.HIGH) == SWT.HIGH;
+		isOn = (style & SWT.ON) == SWT.ON;
+		selectedElement = NONE;
+
+		addMouseListeners();
+		addListener(SWT.Resize, event -> {
+		});
+		addListener(SWT.KeyDown, event -> {
+			handleKeyDown(event);
+		});
+		addPaintListener(event -> {
+			drawWidget(event);
+		});
+	}
+
+	@Override
+	public int getStyle() {
+		return super.getStyle() | //
+				(isOn ? SWT.ON : SWT.NONE) | //
+				(isFullSelection ? SWT.CONTROL : SWT.NONE) | //
+				(isHighQuality ? SWT.HIGH : SWT.NONE);
+	}
+
+	private void addMouseListeners() {
+		addListener(SWT.MouseDown, e -> {
+			if (e.button == 1 || e.button == 2) {
+				selectKnobs(e);
+				selectedElement = (lowerHover ? LOWER : NONE) | (upperHover ? UPPER : NONE);
+				if (selectedElement!=NONE) {
+					if((e.stateMask & SWT.CTRL)==0 && e.button != 2)
+						selectedElement=BOTH;
+					startDragLowerValue = previousLowerValue = lowerValue;
+					startDragUpperValue = previousUpperValue = upperValue;
+					startDragPoint = new Point(e.x, e.y);
+				}
+			}
+		});
+
+		addListener(SWT.MouseUp, e -> {
+			if (selectedElement!=NONE) {
+				startDragPoint = null;
+				validateNewValues(e);
+				super.setToolTipText(clientToolTipText);
+				selectedElement=NONE;
+				redraw();
+			} else if (e.button == 1) {
+				if(e.x<coordLower.x) {
+					translateValues(-pageIncrement);
+					validateNewValues(e);
+					redraw();
+				} else if(e.x>coordUpper.x+markerWidth) {
+					translateValues(pageIncrement);
+					validateNewValues(e);
+					redraw();
+				}
+			}
+		});
+
+		addListener(SWT.MouseDoubleClick, event -> {
+			handleMouseDoubleClick(event);
+		});
+
+		addListener(SWT.MouseMove, event -> {
+			handleMouseMove(event);
+		});
+
+		addListener(SWT.MouseWheel, event -> {
+			handleMouseWheel(event);
+		});
+
+		addListener(SWT.MouseHover, event -> {
+			handleMouseHover(event);
+		});
+
+		addMouseTrackListener(new MouseTrackAdapter() {
+			public void mouseExit(MouseEvent event) {
+				lowerHover = upperHover = false;
+				redraw();
+			}
+		});
+
+	}
+
+	private void validateNewValues(final Event e) {
+		if (upperValue != previousUpperValue || lowerValue != previousLowerValue) {
+			if (!SelectionListenerUtil.fireSelectionListeners(this,e)) {
+				upperValue = previousUpperValue;
+				lowerValue = previousLowerValue;
+			}
+			previousUpperValue = upperValue;
+			previousLowerValue = lowerValue;
+			increment = Math.max(1,  (upperValue-lowerValue)/100);
+			pageIncrement = Math.max(1, (upperValue-lowerValue)/2);
+			redraw();
+		}
+	}
+
+	private boolean busy = false;
+	
+	private void handleMouseMove(final Event e) {
+		if (selectedElement==NONE) {
+			final boolean wasUpper = upperHover;
+			final boolean wasLower = lowerHover;
+			selectKnobs(e);
+			if (wasUpper != upperHover || wasLower != lowerHover) {
+				redraw();
+			}
+		} else { // dragInProgress
+			final int x = e.x;
+			if (selectedElement == BOTH) {
+				final int diff = (int) ((startDragPoint.x - x) / computePixelSizeForSlider()) + minimum;
+				int newUpper = startDragUpperValue - diff;
+				int newLower = startDragLowerValue - diff;
+				if (newUpper > maximum) {
+					newUpper = maximum;
+					newLower = maximum - (startDragUpperValue - startDragLowerValue);
+				} else if (newLower < minimum) {
+					newLower = minimum;
+					newUpper = minimum + startDragUpperValue - startDragLowerValue;
+				}
+				upperValue = newUpper;
+				lowerValue = newLower;
+				handleToolTip(lowerValue, upperValue);
+			} else if (selectedElement == UPPER) {
+				upperValue = (int) Math.round((double)(x - markerWidth) / computePixelSizeForSlider()) + minimum;
+				checkUpperValue();
+				handleToolTip(upperValue);
+			} else if (selectedElement == LOWER){
+				lowerValue = (int) Math.round((double)(x - markerWidth) / computePixelSizeForSlider()) + minimum;
+				checkLowerValue();
+				handleToolTip(lowerValue);
+			}
+			if (isOn && !busy) {
+				validateNewValues(e);
+				busy=true;
+				getDisplay().timerExec(50, ()->{busy=false;});
+			} else {
+				redraw();
+			}
+		}
+	}
+
+	private boolean isBetweenKnobs(int x, int y) {
+		return x < coordUpper.x && x > coordLower.x && y >= minHeight/3 && y <= minHeight/3 + getClientArea().height - 2*minHeight/3;
+	}
+
+	private void selectKnobs(final Event e) {
+		if (coordLower != null) {
+			final Rectangle imgBounds = slider[0].getBounds();
+			final int x = e.x, y = e.y;
+			lowerHover = x >= coordLower.x && x <= coordLower.x + imgBounds.width && y >= coordLower.y && y <= coordLower.y + imgBounds.height;
+			upperHover = ((e.stateMask & (SWT.CTRL | SWT.SHIFT)) != 0 || !lowerHover) && //
+					x >= coordUpper.x && x <= coordUpper.x + imgBounds.width && //
+					y >= coordUpper.y && y <= coordUpper.y + imgBounds.height;
+					lowerHover &= (e.stateMask & SWT.CTRL) != 0 || !upperHover;
+			if (!lowerHover && !upperHover && isBetweenKnobs(x, y)) {
+				lowerHover = upperHover = true;
+			}		
+		}
+	}
+
+	private int getCursorValue(int x, int y) {
+		int value = -1;
+		final Rectangle clientArea = getClientArea();
+		if (x < clientArea.width - 2*markerWidth && x >= markerWidth && y >= minHeight/3 && y <=  clientArea.height - minHeight/3) {
+			value = (int) Math.round((x - 9d) / computePixelSizeForSlider()) + minimum;
+		}
+		return value;
+	}
+
+	private void handleMouseDoubleClick(final Event e) {
+		final int value = getCursorValue(e.x, e.y);
+		if (value >= 0) {
+			if (value > upperValue) {
+				translateValues(value-upperValue);
+			} else if (value < lowerValue) {
+				translateValues(value-lowerValue);
+			}
+			validateNewValues(e);
+		}
+	}
+
+	private void handleToolTip(int... values) {
+		if (toolTipFormatter != null) {
+			try {
+				if (values.length == 1) {
+					toolTip.setLength(0);
+					toolTipFormatter.format(values[0], toolTip, null);
+					super.setToolTipText(toolTip.toString());
+				} else if (values.length == 2) {
+					toolTip.setLength(0);
+					toolTipFormatter.format(values[0], toolTip, null);
+					toolTip.append(" \u2194 "); // LEFT RIGHT ARROW
+					toolTipFormatter.format(values[1], toolTip, null);
+					super.setToolTipText(toolTip.toString());
+				}
+			} catch (final IllegalArgumentException ex) {
+				super.setToolTipText(clientToolTipText);
+			}
+		}
+	}
+
+	private void handleMouseHover(final Event e) {
+		if (selectedElement!=NONE && toolTipFormatter != null) {
+			final int value = getCursorValue(e.x, e.y);
+			if (value >= 0) {
+				try {
+					toolTip.setLength(0);
+					toolTipFormatter.format(value, toolTip, null);
+					super.setToolTipText(toolTip.toString());
+				} catch (final IllegalArgumentException ex) {
+					super.setToolTipText(clientToolTipText);
+				}
+			} else {
+				super.setToolTipText(clientToolTipText);
+			}
+		}
+	}
+
+	public void setToolTipFormatter(Format formatter) {
+		toolTip = formatter != null ? new StringBuffer() : null;
+		toolTipFormatter = formatter;
+	}
+
+	@Override
+	public void setToolTipText(String string) {
+		super.setToolTipText(clientToolTipText = string);
+	}
+
+	private void handleMouseWheel(final Event e) {
+		previousLowerValue = lowerValue;
+		previousUpperValue = upperValue;
+		final int amount = Math.max(1, ((e.stateMask & SWT.SHIFT) != 0 ? (upperValue-lowerValue)/6 : (upperValue-lowerValue)/15));
+		if ((e.stateMask&SWT.CTRL)==0) {
+			int newLower = lowerValue + e.count * amount;
+			int newUpper = upperValue + e.count * amount;
+			if (newUpper > maximum) {
+				newUpper = maximum;
+				newLower = maximum - (upperValue - lowerValue);
+			} else if (newLower < minimum) {
+				newLower = minimum;
+				newUpper = minimum + upperValue - lowerValue;
+			}
+			upperValue = newUpper;
+			lowerValue = newLower;
+		} else {
+			int newLower = lowerValue + e.count * amount/2;
+			int newUpper = upperValue - e.count * amount/2;
+			int dist = newUpper - newLower;
+			if (newUpper > maximum) {
+				newUpper = maximum;
+				newLower = maximum - dist;
+			} else if (newLower < minimum) {
+				newLower = minimum;
+				newUpper = minimum + dist;
+			}
+			if(newUpper<=newLower) {
+				newLower=lowerValue + (upperValue - lowerValue)/2;
+				newUpper=newLower+1;
+			}
+			upperValue = newUpper;
+			lowerValue = newLower;
+		}
+		validateNewValues(e);
+		e.doit = false; // we are consuming this event
+	}
+
+	private void checkLowerValue() {
+		if (lowerValue < minimum) {
+			lowerValue = minimum;
+		} else if (lowerValue > (upperValue-thumbWidth)) {
+			lowerValue = (upperValue-thumbWidth);
+		}
+	}
+
+	private void checkUpperValue() {
+		if (upperValue > maximum) {
+			upperValue = maximum;
+		} else if (upperValue < (lowerValue+thumbWidth)) {
+			upperValue = lowerValue+thumbWidth;
+		}
+	}
+
+	private float computePixelSizeForSlider() {
+		return (getClientArea().width - 2.0f*markerWidth) / (maximum - minimum);
+	}
+
+	private void drawWidget(final PaintEvent e) {
+		final Rectangle rect = getClientArea();
+		if (rect.width == 0 || rect.height == 0) {
+			return;
+		}
+		e.gc.setAdvanced(true);
+		e.gc.setAntialias(SWT.ON);
+		drawBackground(e.gc);
+		if (lowerHover || (selectedElement & LOWER) != 0) {
+			coordUpper = drawMarker(e.gc, upperValue, true);
+			coordLower = drawMarker(e.gc, lowerValue, false);
+		} else {
+			coordLower = drawMarker(e.gc, lowerValue, false);
+			coordUpper = drawMarker(e.gc, upperValue, true);
+		}
+	}
+
+	private void drawBackground(final GC gc) {
+		final Rectangle clientArea = getClientArea();
+		gc.setBackground(getBackground());
+		gc.fillRectangle(clientArea);
+		if (isEnabled()) {
+			gc.setForeground(getForeground());
+		} else {
+			gc.setForeground(getDisplay().getSystemColor(SWT.COLOR_GRAY));
+		}
+		gc.drawRoundRectangle(markerWidth, minHeight/3, clientArea.width - 2*markerWidth, clientArea.height -  2*minHeight/3, 3, 3);
+
+		final float pixelSize = computePixelSizeForSlider();
+		final int startX = (int) (pixelSize * lowerValue);
+		final int endX = (int) (pixelSize * upperValue);
+		if (isEnabled()) {
+			gc.setBackground(getForeground());
+		} else {
+			gc.setBackground(getDisplay().getSystemColor(SWT.COLOR_GRAY));
+		}
+		gc.fillRectangle(markerWidth+startX, minHeight/3, endX - startX, clientArea.height - 2*minHeight/3);
+
+	}
+
+	private Point drawMarker(final GC gc, final int value, final boolean upper) {
+		final float pixelSize = computePixelSizeForSlider();
+		int x = (int) (pixelSize * value);
+		final int idx = upper?1:0;
+		Image image;
+		if (upper) {
+			if (upperHover) {
+				image = (selectedElement & UPPER) != 0 ? sliderDrag[idx] : sliderHover[idx];
+			} else {
+				image = slider[idx];
+			}
+		} else {
+			if (lowerHover) {
+				image = (selectedElement & LOWER) != 0 ? sliderDrag[idx] : sliderHover[idx];
+			} else {
+				image = slider[idx];
+			}
+		}
+		if(upper)
+			x+=slider[idx].getBounds().width;
+		if (isEnabled()) {
+			gc.drawImage(image, x, getClientArea().height / 2 - slider[idx].getBounds().height / 2);
+		} else {
+			final Image temp = new Image(getDisplay(), image, SWT.IMAGE_DISABLE);
+			gc.drawImage(temp, x, getClientArea().height / 2 - slider[idx].getBounds().height / 2);
+			temp.dispose();
+		}
+		return new Point(x, getClientArea().height / 2 - slider[idx].getBounds().height / 2);
+	}
+
+	private void moveCursorPosition(int xDelta, int yDelta) {
+		final Point cursorPosition = getDisplay().getCursorLocation();
+		cursorPosition.x += xDelta;
+		cursorPosition.y += yDelta;
+		getDisplay().setCursorLocation(cursorPosition);
+	}
+
+	private void handleKeyDown(final Event event) {
+		int accelerator = (event.stateMask & SWT.SHIFT) != 0 ? 10 : (event.stateMask & SWT.CTRL) != 0 ? 2 : 1;
+		if (selectedElement != NONE) {
+			switch (event.keyCode) {
+			case SWT.ESC:
+				startDragPoint = null;
+				upperValue = startDragUpperValue;
+				lowerValue = startDragLowerValue;
+				validateNewValues(event);
+				selectedElement = NONE;
+				if (!isOn) {
+					redraw();
+				}
+				event.doit = false;
+				break;
+			case SWT.ARROW_UP:
+				accelerator = -accelerator;
+			case SWT.ARROW_LEFT:
+				moveCursorPosition(-accelerator, 0);
+				event.doit = false;
+				break;
+			case SWT.ARROW_DOWN:
+				accelerator = -accelerator;
+			case SWT.ARROW_RIGHT:
+				moveCursorPosition(accelerator, 0);
+				event.doit = false;
+				break;
+			}
+			return;
+		}
+		previousLowerValue = lowerValue;
+		previousUpperValue = upperValue;
+
+		switch (event.keyCode) {
+		case SWT.HOME:
+			if ((event.stateMask & (SWT.SHIFT| SWT.CTRL)) == 0) {
+				upperValue = minimum + upperValue - lowerValue;
+				lowerValue = minimum;
+			}
+			break;
+		case SWT.END:
+			if ((event.stateMask & (SWT.SHIFT| SWT.CTRL)) == 0) {
+				lowerValue = maximum - (upperValue - lowerValue);
+				upperValue = maximum;
+			}
+			break;
+		case SWT.PAGE_UP:
+			translateValues(-accelerator * pageIncrement);
+			break;
+		case SWT.PAGE_DOWN:
+			translateValues( accelerator * pageIncrement);
+			break;
+		case SWT.ARROW_DOWN:
+		case SWT.ARROW_RIGHT:
+			translateValues( accelerator * increment);
+			break;
+		case SWT.ARROW_UP:
+		case SWT.ARROW_LEFT:
+			translateValues(-accelerator * increment);
+			break;
+		}
+		if (previousLowerValue != lowerValue || previousUpperValue != upperValue) {
+			checkLowerValue();
+			checkUpperValue();
+			validateNewValues(event);
+		}
+	}
+
+	private void translateValues(int amount) {
+		int newLower = lowerValue + amount;
+		int newUpper = upperValue + amount;
+		if (newUpper > maximum) {
+			newUpper = maximum;
+			newLower = maximum - (upperValue - lowerValue);
+		} else if (newLower < minimum) {
+			newLower = minimum;
+			newUpper = minimum + upperValue - lowerValue;
+		}
+		upperValue = newUpper;
+		lowerValue = newLower;
+	}
+
+	public void addSelectionListener(final SelectionListener listener) {
+		checkWidget();
+		SelectionListenerUtil.addSelectionListener(this, listener);
+	}
+
+	public void removeSelectionListener(final SelectionListener listener) {
+		checkWidget();
+		SelectionListenerUtil.removeSelectionListener(this, listener);
+	}
+
+	@Override
+	public Point computeSize(final int wHint, final int hHint, final boolean changed) {
+		checkWidget();
+		final int width = Math.max(2*markerWidth+100, wHint);
+		final int height = Math.max(minHeight, hHint);
+		return new Point(width, height);
+	}
+
+	public int[] getSelection() {
+		checkWidget();
+		return new int[] {lowerValue, upperValue};
+	}
+
+	public int getIncrement() {
+		checkWidget();
+		return increment;
+	}
+
+	public int getMaximum() {
+		checkWidget();
+		return maximum;
+	}
+
+	public int getMinimum() {
+		checkWidget();
+		return minimum;
+	}
+
+	public int getPageIncrement() {
+		checkWidget();
+		return pageIncrement;
+	}
+
+	public void setMaximum(final int value) {
+		setLimits(minimum, value);
+	}
+
+	public void setMinimum(final int value) {
+		setLimits(value, maximum);
+	}
+
+	public void setLimits(final int min, final int max) {
+		checkWidget();
+		if (min >= 0 && min < max && (min != minimum || max != maximum)) {
+			minimum = min;
+			maximum = max;
+			if (lowerValue < minimum) {
+				lowerValue = minimum;
+			} else if (lowerValue > maximum) {
+				lowerValue = maximum;
+			}
+			if (upperValue < minimum) {
+				upperValue = minimum;
+			} else if (upperValue > maximum) {
+				upperValue = maximum;
+			}
+			redraw();
+		}
+	}
+
+	public int getUpperValue() {
+		checkWidget();
+		return upperValue;
+	}
+
+	public void setUpperValue(final int value) {
+		setValues(lowerValue, value);
+	}
+
+	public int getLowerValue() {
+		checkWidget();
+		return lowerValue;
+	}
+
+	public void setLowerValue(final int value) {
+		setValues(value, upperValue);
+	}
+
+	public void setValues(final int[] values) {
+		if (values.length == 2) {
+			setValues(values[0], values[1]);
+		}
+	}
+
+	public void setValues(final int lowerValue, final int upperValue) {
+		setValues(lowerValue, upperValue, false);
+	}
+
+	public void setValues(final int lowerValue, final int upperValue, boolean update) {
+		checkWidget();
+		if (lowerValue <= upperValue && lowerValue >= minimum && upperValue <= maximum && (this.lowerValue != lowerValue || this.upperValue != upperValue)) {
+			this.lowerValue = lowerValue;
+			this.upperValue = upperValue;
+			if(update) {
+				Event e = new Event();
+				e.type=SWT.Selection;
+				e.doit=true;
+				validateNewValues(e);			
+			} else {
+				increment = Math.max(1,  (upperValue-lowerValue)/100);
+				pageIncrement = Math.max(1, (upperValue-lowerValue)/2);
+			}
+			redraw();
+		}
+	}
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/slider/ReflectionUtils.java

@@ -0,0 +1,48 @@
+package com.minres.scviewer.database.ui.swt.internal.slider;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+public class ReflectionUtils {
+	/**
+	 * Call a method using introspection (so ones can call a private or protected method)
+	 * @param object object on which the method will be called
+	 * @param methodName method name
+	 * @param args arguments of this method (can be null)
+	 * @return the value returned by this method (if this method returns a value)
+	 */
+	public static Object callMethod(final Object object, final String methodName, final Object... args) {
+		if (object == null) {
+			return null;
+		}
+		final Class<?>[] array = new Class<?>[args == null ? 0 : args.length];
+		int index = 0;
+		if (args != null) {
+			for (final Object o : args) {
+				array[index++] = o == null ? Object.class : o.getClass();
+			}
+		}
+
+		return callMethodWithClassType(object, methodName, array, args);
+	}
+
+	private static Object callMethodWithClassType(final Object object, final String methodName, final Class<?>[] array, final Object... args) {
+		Class<?> currentClass = object.getClass();
+		Method method = null;
+		while (currentClass != null) {
+			try {
+				method = currentClass.getDeclaredMethod(methodName, array);
+				break;
+			} catch (final NoSuchMethodException nsme) {
+				currentClass = currentClass.getSuperclass();
+			}
+		}
+
+		try {
+			method.setAccessible(true);
+			return method.invoke(object, args);
+		} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
+			e.printStackTrace();
+			return null;
+		}
+	}
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/slider/SelectionListenerUtil.java

@@ -0,0 +1,74 @@
+package com.minres.scviewer.database.ui.swt.internal.slider;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+import org.eclipse.swt.widgets.TypedListener;
+
+public class SelectionListenerUtil {
+	/**
+	 * Add a <code>SelectionListener</code> to a given Control
+	 * 
+	 * @param control control on which the selection listener is added
+	 * @param listener listener to add
+	 */
+	public static void addSelectionListener(final Control control, final SelectionListener listener) {
+		if (listener == null) {
+			SWT.error(SWT.ERROR_NULL_ARGUMENT);
+		}
+		TypedListener typedListener = new TypedListener(listener);
+		control.addListener(SWT.Selection, typedListener);
+	}
+
+	/**
+	 * Remove a <code>SelectionListener</code> of a given Control
+	 * 
+	 * @param control control on which the selection listener is removed
+	 * @param listener listener to remove
+	 */
+	public static void removeSelectionListener(final Control control, final SelectionListener listener) {
+		if (listener == null) {
+			SWT.error(SWT.ERROR_NULL_ARGUMENT);
+		}
+		final Listener[] listeners = control.getListeners(SWT.Selection);
+		for (Listener l : listeners) {
+			if (l instanceof TypedListener) {
+				TypedListener typedListener = (TypedListener) l;
+				if (typedListener.getEventListener() == listener) {
+					ReflectionUtils.callMethod(control, "removeListener", SWT.Selection, ((TypedListener) l).getEventListener());
+					return;
+				}
+			}
+		}
+	}
+
+	/**
+	 * Fire the selection listeners of a given control
+	 *
+	 * @param control the control that fires the event
+	 * @param sourceEvent mouse event
+	 * @return true if the selection could be changed, false otherwise
+	 */
+	public static boolean fireSelectionListeners(final Control control, final Event sourceEvent) {
+		for (final Listener listener : control.getListeners(SWT.Selection)) {
+			final Event event = new Event();
+
+			event.button = sourceEvent==null?1:sourceEvent.button;
+			event.display = control.getDisplay();
+			event.item = null;
+			event.widget = control;
+			event.data = sourceEvent == null ? null : sourceEvent.data;
+			event.time = sourceEvent == null ? 0 : sourceEvent.time;
+			event.x = sourceEvent == null ? 0 : sourceEvent.x;
+			event.y = sourceEvent == null ? 0 : sourceEvent.y;
+			event.type = SWT.Selection;
+
+			listener.handleEvent(event);
+			if (!event.doit) {
+				return false;
+			}
+		}
+		return true;
+	}
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/slider/ZoomBar.java

@@ -0,0 +1,127 @@
+package com.minres.scviewer.database.ui.swt.internal.slider;
+
+import java.text.Format;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.wb.swt.SWTResourceManager;
+
+public class ZoomBar extends Composite {
+	
+	static public interface IProvider {
+		ZoomBar getScrollBar();
+	}
+
+	final RangeSlider timeSlider;
+	final ImageButton leftButton;
+	final ImageButton rightButton;
+	/**
+	 * Create the composite.
+	 * @param parent
+	 * @param style
+	 */
+	public ZoomBar(Composite parent, int style) {
+		super(parent, SWT.NO_FOCUS);
+		GridLayout gridLayout = new GridLayout(3, false);
+		gridLayout.horizontalSpacing = 0;
+		gridLayout.verticalSpacing = 0;
+		gridLayout.marginWidth = 0;
+		gridLayout.marginHeight = 0;
+		setLayout(gridLayout);
+
+		leftButton = new ImageButton(this, SWT.NONE);
+		GridData gd_leftButton = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
+		gd_leftButton.widthHint=14;
+		gd_leftButton.heightHint=18;
+		leftButton.setLayoutData(gd_leftButton);
+		leftButton.setImage(new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "arrow_left.png"),
+				SWTResourceManager.getImage(this.getClass(), "arrow_left_hover.png"),
+				SWTResourceManager.getImage(this.getClass(), "arrow_left_pressed.png")});
+		leftButton.setAutoFire(true);
+		
+		timeSlider = new RangeSlider(this, SWT.ON|SWT.HIGH|SWT.SMOOTH|SWT.CONTROL);
+		timeSlider.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
+
+		rightButton = new ImageButton(this, SWT.NONE);
+		GridData gd_rightButton = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
+		gd_rightButton.widthHint=18;
+		gd_rightButton.heightHint=18;
+		rightButton.setLayoutData(gd_rightButton);
+		rightButton.setImage(new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "arrow_right.png"),
+				SWTResourceManager.getImage(this.getClass(), "arrow_right_hover.png"),
+				SWTResourceManager.getImage(this.getClass(), "arrow_right_pressed.png")});
+		rightButton.setAutoFire(true);
+		
+		leftButton.addSelectionListener(new SelectionAdapter() {
+			@Override
+			public void widgetSelected(SelectionEvent e) {
+				int[] value = timeSlider.getSelection();
+				int incr=timeSlider.getIncrement();
+				int lower = Math.max(timeSlider.getMinimum(), value[0]-incr);
+				timeSlider.setValues(lower, lower + (value[1]-value[0]), true);
+			}
+		});
+		rightButton.addSelectionListener(new SelectionAdapter() {
+			@Override
+			public void widgetSelected(SelectionEvent e) {
+				int[] value = timeSlider.getSelection();
+				int incr=timeSlider.getIncrement();
+				int upper = Math.min(timeSlider.getMaximum(), value[1]+incr);
+				timeSlider.setValues(upper - (value[1]-value[0]), upper, true);
+			}
+		});
+
+	}
+	@Override
+	public void setEnabled (boolean enabled) {
+		timeSlider.setEnabled(enabled);
+		leftButton.setEnabled(enabled);
+		rightButton.setEnabled(enabled);
+		super.setEnabled(enabled);
+		redraw();
+	}
+	public void setButtonsEnabled (boolean enabled) {
+		leftButton.setEnabled(enabled);
+		rightButton.setEnabled(enabled);
+		redraw();
+	}
+	public void setToolTipFormatter(Format formatter){
+		timeSlider.setToolTipFormatter(formatter);
+	}
+	public void setToolTipText(String string) {
+		timeSlider.setToolTipText(string);
+	}
+	public void setSelection(int sel) {
+		timeSlider.setLowerValue(sel);
+	}
+	public void setSelection(int[] sel) {
+		assert(sel.length==2);
+		timeSlider.setValues(sel[0], sel[1]);
+	}
+	public int[] getSelection() {
+		return timeSlider.getSelection();
+	}
+	public void addSelectionListener(SelectionListener selectionListener) {
+		timeSlider.addSelectionListener(selectionListener);	
+	}
+	public void setMinimum(int value) {
+		timeSlider.setMinimum(value);	
+	}
+	public void setMaximum(int value) {
+		timeSlider.setMaximum(value);	
+	}
+	public int getMaximum() {
+		return timeSlider.getMaximum();
+	}
+	public int getMinimum() {
+		return timeSlider.getMinimum();
+	}
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ActionScheduler.java

@@ -0,0 +1,18 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.widgets.Display;
+
+public class ActionScheduler {
+
+  private final Display display;
+  private final Runnable action;
+
+  public ActionScheduler( Display display, Runnable action ) {
+    this.display = display;
+    this.action = action;
+  }
+
+  public void schedule( int delay ) {
+    display.timerExec( delay, action );
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ButtonClick.java

@@ -0,0 +1,45 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Control;
+
+public class ButtonClick {
+
+  public static final int LEFT_BUTTON = 1;
+
+  private boolean armed;
+
+  public boolean isArmed() {
+    return armed;
+  }
+
+  public void arm( MouseEvent event ) {
+    if( event.button == LEFT_BUTTON ) {
+      armed = true;
+    }
+  }
+
+  public void disarm() {
+    armed = false;
+  }
+
+  public void trigger( MouseEvent event, Runnable action ) {
+    try {
+      doTrigger( event, action );
+    } finally {
+      disarm();
+    }
+  }
+
+  private void doTrigger( MouseEvent event, Runnable action ) {
+    if( armed && inRange( event ) ) {
+      action.run();
+    }
+  }
+
+  private static boolean inRange( MouseEvent event ) {
+    Point size = ( ( Control )event.widget ).getSize();
+    return event.x >= 0 && event.x <= size.x && event.y >= 0 && event.y <= size.y;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ClickControl.java

@@ -0,0 +1,98 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.ControlAdapter;
+import org.eclipse.swt.events.ControlEvent;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseListener;
+import org.eclipse.swt.events.MouseTrackListener;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Label;
+
+
+class ClickControl extends ControlAdapter implements ViewComponent, MouseDownActionTimer.TimerAction, MouseListener, MouseTrackListener {
+
+  private final MouseDownActionTimer mouseDownActionTimer;
+  private final ClickAction clickAction;
+  private final ButtonClick buttonClick;
+  private final Label control;
+  private final ImageUpdate imageUpdate;
+
+  public interface ClickAction extends Runnable {
+    void setCoordinates( int x, int y );
+  }
+
+  ClickControl( Composite parent, ClickAction clickAction, int maxExtension  ) {
+    this.control = new Label( parent, SWT.NONE );
+    this.imageUpdate = new ImageUpdate( control, maxExtension );
+    this.buttonClick = new ButtonClick();
+    this.mouseDownActionTimer = new MouseDownActionTimer( this, buttonClick, control.getDisplay() );
+    this.clickAction = clickAction;
+    this.control.addMouseTrackListener( this );
+    this.control.addMouseListener( this );
+    this.control.addControlListener( this );
+  }
+
+  @Override
+  public void controlResized( ControlEvent event ) {
+    imageUpdate.update();
+  }
+
+  @Override
+  public Label getControl() {
+    return control;
+  }
+
+  @Override
+  public void mouseDown( MouseEvent event ) {
+    buttonClick.arm( event );
+    clickAction.setCoordinates( event.x, event.y );
+    mouseDownActionTimer.activate();
+  }
+
+  @Override
+  public void mouseUp( MouseEvent event ) {
+    buttonClick.trigger( event, clickAction );
+  }
+
+  @Override
+  public void run() {
+    clickAction.run();
+  }
+
+  @Override
+  public boolean isEnabled() {
+    return true;
+  }
+
+  @Override
+  public void mouseExit( MouseEvent event ) {
+    buttonClick.disarm();
+  }
+
+  void setForeground( Color color ) {
+    imageUpdate.setForeground( color );
+  }
+
+  Color getForeground() {
+    return imageUpdate.getForeground();
+  }
+
+  void setBackground( Color color ) {
+    imageUpdate.setBackground( color );
+  }
+
+  Color getBackground() {
+    return imageUpdate.getBackground();
+  }
+
+  @Override
+  public void mouseEnter( MouseEvent event ) {}
+
+  @Override
+  public void mouseHover( MouseEvent event ) {}
+
+  @Override
+  public void mouseDoubleClick( MouseEvent event ) {}
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ComponentDistribution.java

@@ -0,0 +1,105 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static java.lang.Math.max;
+
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+
+class ComponentDistribution {
+
+  private static final int MIN_DRAG_LENGTH = 17;
+
+  final int upFastLength;
+  final int dragStart;
+  final int dragLength;
+  final int downFastStart;
+  final int downFastLength;
+  final int downStart;
+  final int buttonLen;
+
+  ComponentDistribution( int buttonLen, int len, int range, int pos, int thumb ) {
+    int slideLen = slideLen( buttonLen, len );
+    int relDragLen = relDragLen( slideLen, range, thumb );
+    int minDragLength = max( MIN_DRAG_LENGTH, buttonLen );
+    int interval = interval( range, relDragLen, minDragLength );
+    this.dragLength = dragLen( minDragLength, relDragLen );
+    this.upFastLength = upFastLen( minDragLength, interval, pos, slideLen, relDragLen, dragLength );
+    this.downStart = downStart( buttonLen, len );
+    this.downFastStart = downFastStart( buttonLen, upFastLength, dragLength );
+    this.dragStart = dragStart( buttonLen, upFastLength );
+    this.downFastLength = downFastLen( minDragLength, interval, pos, slideLen, relDragLen, dragLength, upFastLength );
+    this.buttonLen = buttonLen;
+  }
+
+  private static int slideLen( int buttonLen, int len ) {
+    return len - buttonLen * 2;
+  }
+
+  private static int relDragLen( int slideLen, int range, int thumb ) {
+    return divide( slideLen * thumb, range );
+  }
+
+  private static int interval( int range, int relDragLen, int minDragLength ) {
+    int result = range;
+    if( useMinDragLen( minDragLength, relDragLen ) ) {
+      result += minDragLength - relDragLen / 2;
+    }
+    return result;
+  }
+
+  private static int dragLen( int buttonLen, int relDragLen   ) {
+    return max( relDragLen, buttonLen );
+  }
+
+  private static int upFastLen( int buttonLen, int range, int pos, int slideLen, int relDragLen, int dragLen ) {
+    int result = slideLen * pos / range;
+    if( useMinDragLen( buttonLen, relDragLen ) ) {
+      result -= divide( ( dragLen - relDragLen ) * pos, range );
+    }
+    return result;
+  }
+
+  private static int downStart( int buttonLen, int len ) {
+    return len - buttonLen;
+  }
+
+  private static int downFastStart( int buttonLen, int upFastLength, int dragLength ) {
+    return buttonLen + upFastLength + dragLength;
+  }
+
+  private static int dragStart( int buttonLen, int upFastLen ) {
+    return buttonLen + upFastLen;
+  }
+
+  private static int downFastLen(
+    int buttonLen, int range, int pos, int slideLen, int relDragLen, int dragLen, int upFastLen )
+  {
+    int result = divide( slideLen * ( range - pos ), range ) - dragLen;
+    if( useMinDragLen( buttonLen, relDragLen ) ) {
+      result += divide( ( dragLen - relDragLen ) * pos, range );
+    }
+    return adjustDownFastLen( result, slideLen, dragLen, upFastLen );
+  }
+
+  private static boolean useMinDragLen( int buttonLen, int relDragLen ) {
+    return relDragLen < buttonLen;
+  }
+
+  static int divide( int dividend, int divisor ) {
+    BigDecimal bigDividend = new BigDecimal( dividend );
+    BigDecimal bigDivisor = new BigDecimal( divisor );
+    return bigDividend .divide( bigDivisor, 0, RoundingMode.HALF_EVEN ) .intValue();
+  }
+
+  private static int adjustDownFastLen( int tentative, int slideLen, int dragLen, int upFastLen ) {
+    // TODO [fappel]: Without this there is a flickering of the downFast label of one pixel.
+    //                Check whether this can be resolved by better rounding or whatsoever.
+    int result = tentative;
+    if( slideLen < upFastLen + dragLen + result ) {
+      result--;
+    } else if( slideLen > upFastLen + dragLen + result ) {
+      result++;
+    }
+    return result;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/Decrementer.java

@@ -0,0 +1,24 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+
+import com.minres.scviewer.database.ui.swt.sb.ClickControl.ClickAction;
+
+class Decrementer implements ClickAction {
+
+  private final FlatScrollBar scrollBar;
+
+  Decrementer( FlatScrollBar scrollBar ) {
+    this.scrollBar = scrollBar;
+  }
+
+  @Override
+  public void run() {
+    int selection = scrollBar.getSelection() - scrollBar.getIncrement();
+    scrollBar.setSelectionInternal( selection, SWT.ARROW_UP );
+  }
+
+  @Override
+  public void setCoordinates( int x, int y ) {
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/Direction.java

@@ -0,0 +1,203 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static com.minres.scviewer.database.ui.swt.sb.FlatScrollBar.BAR_BREADTH;
+import static java.lang.Math.max;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+
+enum Direction {
+
+  HORIZONTAL( SWT.HORIZONTAL ) {
+
+    @Override
+    protected void layout( FlatScrollBar scrollBar, int buttonLength  ) {
+      ComponentDistribution distribution = calculateComponentDistribution( scrollBar, buttonLength );
+      Rectangle[] componentBounds = calculateComponentBounds( distribution, scrollBar );
+      applyComponentBounds( scrollBar, componentBounds );
+    }
+
+    private ComponentDistribution calculateComponentDistribution( FlatScrollBar scrollBar, int buttonLength  ) {
+      return calculateComponentDistribution( scrollBar, buttonLength, getControlBounds( scrollBar ).width );
+    }
+
+    private Rectangle[] calculateComponentBounds( ComponentDistribution distribution, FlatScrollBar scrollBar ) {
+      int width = getControlBounds( scrollBar ).width;
+      int height = getControlBounds( scrollBar ).height - FlatScrollBar.BAR_BREADTH + 1;
+      int balance = getRoundingBalance( distribution, scrollBar );
+      return new Rectangle[] {
+        calcButtons( distribution, width, $( 0, CLEARANCE, distribution.buttonLen, height ) ),
+        $( distribution.buttonLen, CLEARANCE, distribution.upFastLength, height ),
+        calcDrag( distribution, $( distribution.dragStart, CLEARANCE, distribution.dragLength + balance, height ) ),
+        $( distribution.downFastStart, CLEARANCE, distribution.downFastLength - balance, height ),
+        calcButtons( distribution, width, $( distribution.downStart, CLEARANCE, distribution.buttonLen, height ) )
+      };
+    }
+
+    private Rectangle calcButtons( ComponentDistribution distribution, int length, Rectangle bounds ) {
+      Rectangle result = bounds;
+      if( length <= distribution.buttonLen* 2 ) {
+        int downStart = calcDownStartForSmallLength( bounds.x, length );
+        result = $( downStart, CLEARANCE, length / 2, bounds.height );
+      }
+      return result;
+    }
+
+    @Override
+    protected void setDefaultSize( Control control ) {
+      Point size = control.getSize();
+      control.setSize( size.x, FlatScrollBar.BAR_BREADTH );
+    }
+
+    @Override
+    protected Point computeSize( Composite composite, int wHint, int hHint, boolean changed ) {
+      int x = wHint == SWT.DEFAULT ? composite.getParent().getClientArea().width : wHint;
+      return new Point( x, FlatScrollBar.BAR_BREADTH );
+    }
+
+    @Override
+    protected void expand( Control control, int maxExpansion ) {
+      Rectangle bounds = control.getBounds();
+      int expand = expand( bounds.height, maxExpansion );
+      control.setBounds( bounds.x, bounds.y - expand, bounds.width, bounds.height + expand );
+    }
+  },
+
+  VERTICAL( SWT.VERTICAL ) {
+
+    @Override
+    protected void layout( FlatScrollBar scrollBar, int buttonLength ) {
+      ComponentDistribution calculation = calculateComponentDistribution( scrollBar, buttonLength );
+      applyComponentBounds( scrollBar, calculateComponentBounds( calculation, scrollBar ) );
+    }
+
+    private ComponentDistribution calculateComponentDistribution( FlatScrollBar scrollBar, int buttonLength ) {
+      return calculateComponentDistribution( scrollBar, buttonLength, getControlBounds( scrollBar ).height );
+    }
+
+    private Rectangle[] calculateComponentBounds( ComponentDistribution distribution, FlatScrollBar scrollBar ) {
+      int width = getControlBounds( scrollBar ).width - FlatScrollBar.BAR_BREADTH + 1;
+      int height = getControlBounds( scrollBar ).height;
+      int balance = getRoundingBalance( distribution, scrollBar );
+      return new Rectangle[] {
+        calculateButtons( distribution, height, $( CLEARANCE, 0, width, distribution.buttonLen ) ),
+        $( CLEARANCE, distribution.buttonLen, width, distribution.upFastLength ),
+        calcDrag( distribution, $( CLEARANCE, distribution.dragStart, width, distribution.dragLength + balance ) ),
+        $( CLEARANCE, distribution.downFastStart, width, distribution.downFastLength - balance ),
+        calculateButtons( distribution, height, $( CLEARANCE, distribution.downStart, width, distribution.buttonLen ) )
+      };
+    }
+
+    private Rectangle calculateButtons( ComponentDistribution distribution, int length, Rectangle bounds ) {
+      Rectangle result = bounds;
+      if( length <= distribution.buttonLen * 2 ) {
+        int downStart = calcDownStartForSmallLength( bounds.y, length );
+        result = $( CLEARANCE, downStart, bounds.width, length / 2 );
+      }
+      return result;
+    }
+
+    @Override
+    protected void setDefaultSize( Control control ) {
+      Point size = control.getSize();
+      control.setSize( FlatScrollBar.BAR_BREADTH, size.y );
+    }
+
+    @Override
+    protected Point computeSize( Composite composite, int wHint, int hHint, boolean changed ) {
+      int y = hHint == SWT.DEFAULT ? composite.getParent().getClientArea().height : hHint;
+      return new Point( FlatScrollBar.BAR_BREADTH, y );
+    }
+
+    @Override
+    protected void expand( Control control, int maxExpansion ) {
+      Rectangle bounds = control.getBounds();
+      int expand = expand( bounds.width, maxExpansion );
+      control.setBounds( bounds.x - expand, bounds.y, bounds.width + expand, bounds.height );
+    }
+  };
+
+  static final Rectangle EMPTY_RECTANGLE = $( 0, 0, 0, 0 );
+  static final int CLEARANCE = BAR_BREADTH - 2;
+
+  private final int value;
+
+  protected abstract void layout( FlatScrollBar scrollBar, int buttonLength );
+  protected abstract void setDefaultSize( Control control );
+  protected abstract Point computeSize( Composite comp, int wHint, int hHint, boolean changed );
+  protected abstract void expand( Control control, int maxExpansion  );
+
+  Direction( int value ) {
+    this.value = value;
+  }
+
+  public int value() {
+    return value;
+  }
+
+  private static ComponentDistribution calculateComponentDistribution(
+    FlatScrollBar scrollBar , int buttonLength , int length  )
+  {
+    int range = scrollBar.getMaximum() - scrollBar.getMinimum();
+    int position = scrollBar.getSelection() - scrollBar.getMinimum();
+    int thumb = scrollBar.getThumb();
+    return new ComponentDistribution( buttonLength, length, range, position, thumb );
+  }
+
+  private static Rectangle getControlBounds( FlatScrollBar scrollBar ) {
+    return scrollBar.getClientArea();
+  }
+
+  private static void applyComponentBounds( FlatScrollBar scrollBar, Rectangle[] bounds ) {
+    scrollBar.up.getControl().setBounds( bounds[ 0 ] );
+    scrollBar.upFast.getControl().setBounds( bounds[ 1 ] );
+    scrollBar.drag.getControl().setBounds( bounds[ 2 ] );
+    scrollBar.downFast.getControl().setBounds( bounds[ 3 ] );
+    scrollBar.down.getControl().setBounds( bounds[ 4 ] );
+  }
+
+  // TODO [fappel]: There is a 1 pixel rounding problem at the seam of drag/downFast with down.
+  //                Seems to work but I would prefer a better solution if possible
+  private static int getRoundingBalance( ComponentDistribution calculation, FlatScrollBar scrollBar ) {
+    int result = 0;
+    int maximumSelection = scrollBar.getMaximum() - scrollBar.getThumb();
+    if( scrollBar.getSelection() == maximumSelection && 0 != calculation.downFastLength ) {
+      result = 1;
+    }
+    return result;
+  }
+
+  private static int expand( int toExpand, int maxExpansion ) {
+    return max( 0, FlatScrollBar.BAR_BREADTH + maxExpansion - max( FlatScrollBar.BAR_BREADTH, toExpand ) );
+  }
+
+  private static Rectangle calcDrag( ComponentDistribution distribution, Rectangle bounds ) {
+    Rectangle result = bounds;
+    if( isUndercutOfDragVisibility( distribution ) ) {
+      result = EMPTY_RECTANGLE;
+    }
+    return result;
+  }
+
+  private static boolean isUndercutOfDragVisibility( ComponentDistribution distribution ) {
+    return distribution.dragLength + distribution.buttonLen >= distribution.downStart;
+  }
+
+  private static int calcDownStartForSmallLength( int position, int length ) {
+    int result = position;
+    if( isDownStartPosition( position ) ) {
+      result = length / 2;
+    }
+    return result;
+  }
+  private static boolean isDownStartPosition( int position ) {
+    return position > 0 || position < 0;
+  }
+
+  private static Rectangle $( int x, int y, int width, int height ) {
+    return new Rectangle( x, y , width , height );
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/DragControl.java

@@ -0,0 +1,105 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.ControlAdapter;
+import org.eclipse.swt.events.ControlEvent;
+import org.eclipse.swt.events.DragDetectEvent;
+import org.eclipse.swt.events.DragDetectListener;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseListener;
+import org.eclipse.swt.events.MouseMoveListener;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Label;
+
+
+class DragControl
+  extends ControlAdapter
+  implements ViewComponent, DragDetectListener, MouseListener, MouseMoveListener
+{
+
+  private final DragDetector dragDetector;
+  private final ImageUpdate imageUpdate;
+  private final DragAction dragAction;
+  private final Label control;
+
+  private Point startingPosition;
+
+  public interface DragAction {
+    void start();
+    void run( int startX, int startY, int currentX, int currentY );
+    void end();
+  }
+
+  DragControl( Composite parent, DragAction dragAction, int maxExpansion ) {
+    this.control = new Label( parent, SWT.NONE );
+    this.imageUpdate = new ImageUpdate( control, maxExpansion );
+    this.dragDetector = new DragDetector( control, 0 );
+    this.dragAction = dragAction;
+    initializeControl();
+  }
+
+  @Override
+  public Label getControl() {
+    return control;
+  }
+
+  @Override
+  public void dragDetected( DragDetectEvent event ) {
+    if( startingPosition != null ) {
+      dragAction.run( startingPosition.x, startingPosition.y, event.x, event.y );
+    }
+    dragDetector.dragHandled();
+  }
+
+  @Override
+  public void mouseDown( MouseEvent event ) {
+    startingPosition = new Point( event.x, event.y );
+    dragAction.start();
+  }
+
+  @Override
+  public void mouseUp( MouseEvent event ) {
+    if( startingPosition != null ) {
+      dragAction.end();
+    }
+    startingPosition = null;
+  }
+
+  @Override
+  public void mouseMove( MouseEvent event ) {
+    dragDetector.mouseMove( event );
+  }
+
+  @Override
+  public void controlResized( ControlEvent event ) {
+    imageUpdate.update();
+  }
+
+  void setForeground( Color color ) {
+    imageUpdate.setForeground( color );
+  }
+
+  Color getForeground() {
+    return imageUpdate.getForeground();
+  }
+
+  Color getBackground() {
+    return imageUpdate.getBackground();
+  }
+
+  void setBackground( Color color ) {
+    imageUpdate.setBackground( color );
+  }
+
+  private void initializeControl( ) {
+    control.addMouseListener( this );
+    control.addMouseMoveListener( this );
+    control.addControlListener( this );
+    control.addDragDetectListener( this );
+  }
+
+  @Override
+  public void mouseDoubleClick( MouseEvent event ) {}
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/DragDetector.java

@@ -0,0 +1,60 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Event;
+
+// TODO [fappel]: This is a workaround for a problem described here:
+// http://stackoverflow.com/questions/3908290/mousedown-events-are-not-delivered-until-mouseup-when-a-drag-source-is-present
+// This seems to be related to https://bugs.eclipse.org/bugs/show_bug.cgi?id=328396
+// which is resolved. As it did not work on my setup I adapted the workaround of the last
+// stackoverflow answer.
+
+public class DragDetector {
+
+  int lastMouseX;
+  int lastMouseY;
+  boolean dragEventGenerated;
+
+  private final Control control;
+  private final int sensibility;
+
+  public DragDetector( Control control, int sensibility ) {
+    this.control = control;
+    this.sensibility = sensibility;
+    this.control.setDragDetect( false );
+  }
+
+  public void mouseMove( MouseEvent e ) {
+    if( ( e.stateMask & SWT.BUTTON1 ) > 0 ) {
+      int deltaX = lastMouseX - e.x;
+      int deltaY = lastMouseY - e.y;
+      int dragDistance = deltaX * deltaX + deltaY * deltaY;
+      if( !dragEventGenerated && dragDistance > sensibility ) {
+        dragEventGenerated = true;
+        Event event = createDragEvent( e );
+        control.notifyListeners( SWT.DragDetect, event );
+      }
+      lastMouseX = e.x;
+      lastMouseY = e.y;
+    }
+  }
+
+  public void dragHandled() {
+    dragEventGenerated = false;
+  }
+
+  private Event createDragEvent( MouseEvent e ) {
+    Event event = new Event();
+    event.type = SWT.DragDetect;
+    event.display = control.getDisplay();
+    event.widget = control;
+    event.button = e.button;
+    event.stateMask = e.stateMask;
+    event.time = e.time;
+    event.x = e.x;
+    event.y = e.y;
+    return event;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/DragShifter.java

@@ -0,0 +1,59 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static com.minres.scviewer.database.ui.swt.sb.Direction.HORIZONTAL;
+import static com.minres.scviewer.database.ui.swt.sb.ShiftData.calculateSelectionRange;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Point;
+
+import com.minres.scviewer.database.ui.swt.sb.DragControl.DragAction;
+
+final class DragShifter implements DragAction {
+
+  private final FlatScrollBar scrollBar;
+  private final int buttonLength;
+
+  public DragShifter( FlatScrollBar scrollBar, int buttonLength ) {
+    this.scrollBar = scrollBar;
+    this.buttonLength = buttonLength;
+  }
+
+  @Override
+  public void start() {
+    scrollBar.notifyListeners( SWT.DRAG );
+  }
+
+  @Override
+  public void run( int startX, int startY, int currentX, int currentY ) {
+    ShiftData shiftData = newShiftData( startX, startY, currentX, currentY );
+    if( shiftData.canShift() ) {
+      int selectionRange = calculateSelectionRange( scrollBar );
+      int selectionDelta = shiftData.calculateSelectionDelta( selectionRange );
+      int selection = scrollBar.getSelection() + selectionDelta;
+      scrollBar.setSelectionInternal( selection, SWT.DRAG );
+    }
+  }
+
+  @Override
+  public void end() {
+    scrollBar.notifyListeners( SWT.NONE );
+  }
+
+  private ShiftData newShiftData( int startX, int startY, int currentX, int currentY ) {
+    ShiftData result;
+    if( scrollBar.direction == HORIZONTAL ) {
+      result = new ShiftData( buttonLength, getScrollBarSize().x, getDragSize().x, currentX - startX );
+    } else {
+      result = new ShiftData( buttonLength, getScrollBarSize().y, getDragSize().y, currentY - startY );
+    }
+    return result;
+  }
+
+  private Point getScrollBarSize() {
+    return scrollBar.getSize();
+  }
+
+  private Point getDragSize() {
+    return scrollBar.drag.getControl().getSize();
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/FastDecrementer.java

@@ -0,0 +1,49 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Display;
+
+import com.minres.scviewer.database.ui.swt.sb.ClickControl.ClickAction;
+
+class FastDecrementer implements ClickAction {
+
+  private final FlatScrollBar scrollBar;
+
+  private int x;
+  private int y;
+
+  FastDecrementer( FlatScrollBar scrollBar ) {
+    this.scrollBar = scrollBar;
+  }
+
+  @Override
+  public void run() {
+    Rectangle drag = getDragBounds();
+    Point mouse = getMouseLocation();
+    if( mouse.x <= drag.x || mouse.y <= drag.y ) {
+      int selection = scrollBar.getSelection() - scrollBar.getPageIncrement();
+      scrollBar.setSelectionInternal( selection, SWT.PAGE_UP );
+    }
+  }
+
+  @Override
+  public void setCoordinates( int x, int y ) {
+    this.x = x;
+    this.y = y;
+  }
+
+  private Point getMouseLocation() {
+    return getDisplay().map( scrollBar.upFast.getControl(), null, x, y );
+  }
+
+  private Rectangle getDragBounds() {
+    Rectangle dragBounds = scrollBar.drag.getControl().getBounds();
+    return getDisplay().map( scrollBar, null, dragBounds );
+  }
+
+  private Display getDisplay() {
+    return scrollBar.getDisplay();
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/FastIncrementer.java

@@ -0,0 +1,42 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Display;
+
+import com.minres.scviewer.database.ui.swt.sb.ClickControl.ClickAction;
+
+class FastIncrementer implements ClickAction {
+
+  private final FlatScrollBar scrollBar;
+
+  private Point mouse;
+
+  FastIncrementer( FlatScrollBar scrollBar ) {
+    this.scrollBar = scrollBar;
+  }
+
+  @Override
+  public void run() {
+    Rectangle drag = getDragBounds();
+    if( mouse.x > drag.x + drag.width || mouse.y > drag.y + drag.height ) {
+      int selection = scrollBar.getSelection() + scrollBar.getPageIncrement();
+      scrollBar.setSelectionInternal( selection, SWT.PAGE_DOWN );
+    }
+  }
+
+  @Override
+  public void setCoordinates( int x, int y ) {
+    mouse = getMouseLocation( x, y );
+  }
+
+  private Point getMouseLocation(int x, int y) {
+    return Display.getCurrent().map( scrollBar.downFast.getControl(), null, x, y );
+  }
+
+  private Rectangle getDragBounds() {
+    Rectangle dragBounds = scrollBar.drag.getControl().getBounds();
+    return Display.getCurrent().map( scrollBar, null, dragBounds );
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/FlatScrollBar.java

@@ -0,0 +1,295 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static com.minres.scviewer.database.ui.swt.sb.UntypedSelectionAdapter.lookup;
+
+import java.util.Collection;
+import java.util.HashSet;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Layout;
+import org.eclipse.swt.widgets.Listener;
+
+public class FlatScrollBar extends Composite {
+
+  public static final int BAR_BREADTH = 6;
+
+  static final int DEFAULT_MINIMUM = 0;
+  static final int DEFAULT_MAXIMUM = 100;
+  static final int DEFAULT_INCREMENT = 1;
+  static final int DEFAULT_THUMB = 10;
+  static final int DEFAULT_PAGE_INCREMENT = DEFAULT_THUMB;
+  static final int DEFAULT_SELECTION = 0;
+  static final int DEFAULT_BUTTON_LENGTH = 0;
+  static final int DEFAULT_MAX_EXPANSION = Direction.CLEARANCE + 2;
+
+  final ClickControl up;
+  final ClickControl upFast;
+  final DragControl drag;
+  final ClickControl downFast;
+  final ClickControl down;
+  final Direction direction;
+  final MouseWheelShifter mouseWheelHandler;
+  final Collection<SelectionListener> listeners;
+
+  private int minimum;
+  private int maximum;
+  private int increment;
+  private int pageIncrement;
+  private int thumb;
+  private int selection;
+  private boolean onDrag;
+  private int buttonLength;
+
+  public FlatScrollBar( final Composite parent, int style ) {
+    this( parent, style, DEFAULT_BUTTON_LENGTH, DEFAULT_MAX_EXPANSION );
+  }
+
+  FlatScrollBar( Composite parent, int style, int buttonLength, int maxExpansion ) {
+    super( parent, SWT.NONE );
+    super.setLayout( new FlatScrollBarLayout( getDirection( style ) ) );
+    this.minimum = DEFAULT_MINIMUM;
+    this.maximum = DEFAULT_MAXIMUM;
+    this.increment = DEFAULT_INCREMENT;
+    this.pageIncrement = DEFAULT_PAGE_INCREMENT;
+    this.thumb = DEFAULT_THUMB;
+    this.selection = DEFAULT_SELECTION;
+    this.buttonLength = buttonLength;
+    this.direction = getDirection( style );
+    this.direction.setDefaultSize( this );
+    this.up = new ClickControl( this, new Decrementer( this ), maxExpansion );
+    this.upFast = new ClickControl( this, new FastDecrementer( this ), maxExpansion );
+    this.drag = new DragControl( this, new DragShifter( this, buttonLength ), maxExpansion );
+    this.downFast = new ClickControl( this, new FastIncrementer( this ), maxExpansion );
+    this.down = new ClickControl( this, new Incrementer( this ), maxExpansion );
+    this.mouseWheelHandler = new MouseWheelShifter( this, parent, buttonLength );
+    this.listeners = new HashSet<SelectionListener>();
+    addMouseTrackListener( new MouseTracker( this, maxExpansion ) );
+    addControlListener( new ResizeObserver( this ) );
+    setDefaultColorScheme();
+  }
+
+  @Override
+  public void setLayout( Layout layout ) {
+    throw new UnsupportedOperationException( FlatScrollBar.class.getName() + " does not allow to change layout." );
+  };
+
+  @Override
+  public int getStyle() {
+    return direction != null ? super.getStyle() | direction.value() : super.getStyle();
+  };
+
+  Direction getDirection() {
+    return direction;
+  }
+
+  public void setMinimum( int minimum ) {
+    if( this.minimum != minimum && minimum >= 0 && minimum < maximum ) {
+      this.minimum = minimum;
+      adjustThumb();
+      adjustSelection();
+      layout();
+    }
+  }
+
+  public int getMinimum() {
+    return minimum;
+  }
+
+  public void setMaximum( int maximum ) {
+    if( this.maximum != maximum && maximum >= 0 && maximum > minimum ) {
+      this.maximum = maximum;
+      adjustThumb();
+      adjustSelection();
+      layout();
+    }
+  }
+
+  public int getMaximum() {
+    return maximum;
+  }
+
+  public void setThumb( int thumb ) {
+    if( this.thumb != thumb && thumb >= 1 ) {
+      this.thumb = thumb;
+      adjustThumb();
+      adjustSelection();
+      layout();
+    }
+  }
+
+  public int getThumb() {
+    return thumb;
+  }
+
+  public void setIncrement( int increment ) {
+    if( this.increment != increment ) {
+      this.increment = increment;
+      layout();
+    }
+  }
+
+  public int getIncrement() {
+    return increment;
+  }
+
+  public void setPageIncrement( int pageIncrement ) {
+    this.pageIncrement = pageIncrement;
+  }
+
+  public int getPageIncrement() {
+    return pageIncrement;
+  }
+
+  public void setSelection( int selection ) {
+    if( !onDrag ) {
+      updateSelection( selection );
+    }
+  }
+
+  public int getSelection() {
+    return selection;
+  }
+
+  public void addSelectionListener( SelectionListener selectionListener ) {
+    listeners.add( selectionListener );
+  }
+
+  public void removeSelectionListener( SelectionListener selectionListener ) {
+    listeners.remove( selectionListener );
+  }
+
+  @Override
+  public void addListener( int eventType, final Listener listener ) {
+    if( eventType == SWT.Selection ) {
+      addSelectionListener( new UntypedSelectionAdapter( listener ) );
+    } else {
+      super.addListener( eventType, listener );
+    }
+  }
+
+  @Override
+  public void removeListener( int eventType, Listener listener ) {
+    if( eventType == SWT.Selection ) {
+      removeSelectionListener( lookup( listeners, listener ) );
+    } else {
+      super.removeListener( eventType, listener );
+    }
+  }
+
+  @Override
+  public void layout() {
+    direction.layout( this, buttonLength );
+    update();
+  }
+
+  public void setIncrementButtonLength( int length ) {
+    this.buttonLength = length;
+    layout();
+  }
+
+  public int getIncrementButtonLength() {
+    return buttonLength;
+  }
+
+  public void setIncrementColor( Color color ) {
+    up.setForeground( color );
+    down.setForeground( color );
+  }
+
+  public Color getIncrementColor() {
+    return up.getForeground();
+  }
+
+  public void setPageIncrementColor( Color color ) {
+    upFast.setForeground( color );
+    downFast.setForeground( color );
+  }
+
+  public Color getPageIncrementColor() {
+    return upFast.getForeground();
+  }
+
+  public void setThumbColor( Color color ) {
+    drag.setForeground( color );
+  }
+
+  public Color getThumbColor() {
+    return drag.getForeground();
+  }
+
+  @Override
+  public void setBackground( Color color ) {
+    up.setBackground( color );
+    upFast.setBackground( color );
+    drag.setBackground( color );
+    downFast.setBackground( color );
+    down.setBackground( color );
+    super.setBackground( color );
+  }
+
+  protected void setSelectionInternal( int selection, int detail ) {
+    int oldSelection = this.selection;
+    updateSelection( selection );
+    if( oldSelection != this.selection ) {
+      notifyListeners( detail );
+    }
+  }
+
+  private void updateSelection( int selection ) {
+    if( this.selection != selection ) {
+      this.selection = selection;
+      adjustSelection();
+      layout();
+    }
+  }
+
+  public void notifyListeners( int detail ) {
+    updateOnDrag( detail );
+    SelectionEvent selectionEvent = createEvent( detail );
+    for( SelectionListener listener : listeners ) {
+      listener.widgetSelected( selectionEvent );
+    }
+  }
+
+  private void updateOnDrag( int detail ) {
+    onDrag = ( onDrag || ( SWT.DRAG & detail ) > 0 ) && ( SWT.NONE != detail );
+  }
+
+  private SelectionEvent createEvent( int detail ) {
+    Event event = new Event();
+    event.widget = this;
+    event.detail = detail;
+    return new SelectionEvent( event );
+  }
+
+  private void adjustThumb() {
+    if( thumb > maximum - minimum ) {
+      thumb = Math.min( maximum - minimum, thumb );
+      thumb = Math.max( 1, thumb );
+    }
+  }
+
+  private void adjustSelection() {
+    selection = Math.min( selection, maximum - thumb );
+    selection = Math.max( selection, minimum );
+  }
+
+  private static Direction getDirection( int style ) {
+    return ( style & SWT.HORIZONTAL ) > 0 ? Direction.HORIZONTAL : Direction.VERTICAL;
+  }
+
+  private void setDefaultColorScheme() {
+    up.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_NORMAL_SHADOW ) );
+    upFast.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_BACKGROUND ) );
+    drag.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_FOREGROUND ) );
+    downFast.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_BACKGROUND ) );
+    down.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_NORMAL_SHADOW ) );
+    setBackground( getBackground() );
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/FlatScrollBarLayout.java

@@ -0,0 +1,23 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Layout;
+
+class FlatScrollBarLayout extends Layout {
+
+  private final Direction direction;
+
+  public FlatScrollBarLayout( Direction orientation ) {
+    this.direction = orientation;
+  }
+
+  @Override
+  protected void layout( Composite composite, boolean flushCache ) {
+  }
+
+  @Override
+  protected Point computeSize( Composite composite, int wHint, int hHint, boolean flushCache ) {
+    return direction.computeSize( composite, wHint, hHint, flushCache );
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ImageDrawer.java

@@ -0,0 +1,109 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static java.lang.Math.min;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.widgets.Display;
+
+class ImageDrawer {
+
+  static final String IMAGE_DRAWER_IS_DISPOSED = "ImageDrawer is disposed.";
+
+  private final int maxExpansion;
+
+  private Color background;
+  private Color foreground;
+
+  ImageDrawer( int expansion  ) {
+    this( expansion, getSystemColor( SWT.COLOR_WIDGET_DARK_SHADOW ), getSystemColor( SWT.COLOR_LIST_BACKGROUND ) );
+  }
+
+  ImageDrawer( int expansion, Color background, Color foreground ) {
+    this.maxExpansion = expansion;
+    this.foreground = defensiveCopy( background );
+    this.background = defensiveCopy( foreground );
+  }
+
+  void setForeground( Color foreground ) {
+    checkDisposed();
+    if( foreground != null ) {
+      this.foreground = prepareColorAttribute( this.foreground, foreground );
+    }
+  }
+
+  Color getForeground() {
+    checkDisposed();
+    return foreground;
+  }
+
+  void setBackground( Color background ) {
+    checkDisposed();
+    if( background != null ) {
+      this.background = prepareColorAttribute( this.background, background );
+    }
+  }
+
+  Color getBackground() {
+    checkDisposed();
+    return background;
+  }
+
+  Image draw( int width, int height ) {
+    checkDisposed();
+    Image result = new Image( getDisplay(), width, height );
+    GC gc = new GC( result );
+    try {
+      draw( gc, width, height );
+    } finally {
+      gc.dispose();
+    }
+    return result;
+  }
+
+  boolean isDisposed() {
+    return background.isDisposed();
+  }
+
+  void dispose() {
+    if( !isDisposed() ) {
+      this.background.dispose();
+      this.foreground.dispose();
+    }
+  }
+
+  private void draw( GC gc, int width, int height ) {
+    gc.setBackground( background );
+    gc.fillRectangle( 0, 0, width, height );
+    gc.setBackground( foreground );
+    gc.setAdvanced( true );
+    gc.setAntialias( SWT.ON );
+    int arc = min( width, height ) == 1 ? 1 : maxExpansion + 2;
+    gc.fillRoundRectangle( 0, 0, width, height, arc, arc );
+  }
+
+  private void checkDisposed() {
+    if( isDisposed() ) {
+      throw new IllegalStateException( IMAGE_DRAWER_IS_DISPOSED );
+    }
+  }
+
+  private static Color getSystemColor( int colorCode ) {
+    return getDisplay().getSystemColor( colorCode );
+  }
+
+  private static Color prepareColorAttribute( Color oldColor, Color newColor ) {
+    oldColor.dispose();
+    return defensiveCopy( newColor );
+  }
+
+  private static Color defensiveCopy( Color background ) {
+    return new Color( getDisplay(), background.getRGB() );
+  }
+
+  private static Display getDisplay() {
+    return Display.getCurrent();
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ImageUpdate.java

@@ -0,0 +1,46 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Label;
+
+class ImageUpdate {
+
+  private final ImageDrawer imageDrawer;
+  private final Label control;
+
+  ImageUpdate( Label control, int maxExpansion ) {
+    this.imageDrawer = new ImageDrawer( maxExpansion );
+    this.control = control;
+    this.control.addListener( SWT.Dispose, evt -> imageDrawer.dispose() );
+  }
+
+  void setForeground( Color color ) {
+    imageDrawer.setForeground( color );
+  }
+
+  Color getForeground() {
+    return imageDrawer.getForeground();
+  }
+
+  void setBackground( Color color ) {
+    imageDrawer.setBackground( color );
+  }
+
+  Color getBackground() {
+    return imageDrawer.getBackground();
+  }
+
+  void update() {
+    if( !control.isDisposed() ) {
+      if( control.getImage() != null ) {
+        control.getImage().dispose();
+      }
+      Point size = control.getSize();
+      if( size.x > 0 && size.y > 0 ) {
+        control.setImage( imageDrawer.draw( size.x, size.y ) );
+      }
+    }
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/Incrementer.java

@@ -0,0 +1,24 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+
+import com.minres.scviewer.database.ui.swt.sb.ClickControl.ClickAction;
+
+class Incrementer implements ClickAction {
+
+  private final FlatScrollBar scrollBar;
+
+  Incrementer( FlatScrollBar scrollBar ) {
+    this.scrollBar = scrollBar;
+  }
+
+  @Override
+  public void run() {
+    int selection = scrollBar.getSelection() + scrollBar.getIncrement();
+    scrollBar.setSelectionInternal( selection, SWT.ARROW_DOWN );
+  }
+
+  @Override
+  public void setCoordinates( int x, int y ) {
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/MouseDownActionTimer.java

@@ -0,0 +1,37 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.widgets.Display;
+
+public class MouseDownActionTimer implements Runnable {
+
+  public static final int INITIAL_DELAY = 300;
+  public static final int FAST_DELAY = 50;
+
+  private final ActionScheduler scheduler;
+  private final TimerAction timerAction;
+  private final ButtonClick mouseClick;
+
+  public interface TimerAction extends Runnable {
+    boolean isEnabled();
+  }
+
+  public MouseDownActionTimer( TimerAction timerAction, ButtonClick mouseClick, Display display ) {
+    this.scheduler = new ActionScheduler( display, this );
+    this.timerAction = timerAction;
+    this.mouseClick = mouseClick;
+  }
+
+  public void activate() {
+    if( timerAction.isEnabled() ) {
+      scheduler.schedule( INITIAL_DELAY );
+    }
+  }
+
+  @Override
+  public void run() {
+    if( mouseClick.isArmed() && timerAction.isEnabled() ) {
+      timerAction.run();
+      scheduler.schedule( FAST_DELAY );
+    }
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/MouseTracker.java

@@ -0,0 +1,66 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.events.DisposeEvent;
+import org.eclipse.swt.events.DisposeListener;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseTrackAdapter;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Display;
+
+class MouseTracker extends MouseTrackAdapter implements Runnable, DisposeListener {
+
+  static final int DELAY = 500;
+
+  private final FlatScrollBar scrollBar;
+  private final int maxExpansion;
+
+  private Rectangle expandedBounds;
+  private Rectangle originBounds;
+  private boolean mouseOver;
+  private boolean disposed;
+
+  MouseTracker( FlatScrollBar scrollBar, int maxExpansion  ) {
+    this.scrollBar = scrollBar;
+    this.maxExpansion = maxExpansion;
+    this.scrollBar.addDisposeListener( this );
+    this.scrollBar.up.getControl().addMouseTrackListener( this );
+    this.scrollBar.upFast.getControl().addMouseTrackListener( this );
+    this.scrollBar.drag.getControl().addMouseTrackListener( this );
+    this.scrollBar.downFast.getControl().addMouseTrackListener( this );
+    this.scrollBar.down.getControl().addMouseTrackListener( this );
+  }
+
+  @Override
+  public void mouseEnter( MouseEvent event ) {
+    mouseOver = true;
+    if( !disposed && originBounds == null ) {
+      originBounds = scrollBar.getBounds();
+      scrollBar.getDirection().expand( scrollBar, maxExpansion );
+      expandedBounds = scrollBar.getBounds();
+    }
+  }
+
+  @Override
+  public void mouseExit( MouseEvent event ) {
+    mouseOver = false;
+    if( !disposed ) {
+      Display.getCurrent().timerExec( DELAY, this );
+    }
+  }
+
+  @Override
+  public void run() {
+    if( !disposed && !mouseOver ) {
+      if( scrollBar.getBounds().equals( expandedBounds ) ) {
+        scrollBar.setBounds( originBounds );
+      }
+      originBounds = null;
+      expandedBounds = null;
+    }
+  }
+
+  @Override
+  public void widgetDisposed( DisposeEvent e ) {
+    disposed = true;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/MouseWheelShifter.java

@@ -0,0 +1,69 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static com.minres.scviewer.database.ui.swt.sb.Direction.HORIZONTAL;
+import static com.minres.scviewer.database.ui.swt.sb.ShiftData.calculateSelectionRange;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.DisposeEvent;
+import org.eclipse.swt.events.DisposeListener;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+
+public class MouseWheelShifter implements Listener, DisposeListener {
+
+  private final FlatScrollBar scrollBar;
+  private final Composite parent;
+  private final int buttonLength;
+
+  MouseWheelShifter( FlatScrollBar scrollBar, Composite parent, int buttonLength ) {
+    this.scrollBar = scrollBar;
+    this.parent = parent;
+    this.buttonLength = buttonLength;
+    parent.addListener( getListenerType(), this );
+    scrollBar.addDisposeListener( this );
+  }
+
+  @Override
+  public void handleEvent( Event event ) {
+    handleMouseWheelScroll( event );
+  }
+
+  @Override
+  public void widgetDisposed( DisposeEvent e ) {
+    parent.removeListener( getListenerType(), this );
+  }
+
+  private void handleMouseWheelScroll( Event event ) {
+    ShiftData shiftData = newShiftData( event.count );
+    if( shiftData.canShift() ) {
+      int selectionRange = calculateSelectionRange( scrollBar );
+      int selectionDelta = shiftData.calculateSelectionDelta( selectionRange );
+      int selection = scrollBar.getSelection() - selectionDelta;
+      scrollBar.setSelectionInternal( selection, scrollBar.direction.value() );
+    }
+  }
+
+  private ShiftData newShiftData( int delta ) {
+    ShiftData result;
+    if( scrollBar.direction == Direction.HORIZONTAL ) {
+      result = new ShiftData( buttonLength, getScrollBarSize().x, getDragSize().x, delta );
+    } else {
+      result = new ShiftData( buttonLength, getScrollBarSize().y, getDragSize().y, delta );
+    }
+    return result;
+  }
+
+  private Point getScrollBarSize() {
+    return scrollBar.getSize();
+  }
+
+  private Point getDragSize() {
+    return scrollBar.drag.getControl().getSize();
+  }
+
+  private int getListenerType() {
+    return scrollBar.direction == HORIZONTAL ? SWT.MouseHorizontalWheel: SWT.MouseVerticalWheel;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ResizeObserver.java

@@ -0,0 +1,19 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.events.ControlAdapter;
+import org.eclipse.swt.events.ControlEvent;
+
+class ResizeObserver extends ControlAdapter {
+
+  private final FlatScrollBar flatScrollBar;
+
+  public ResizeObserver( FlatScrollBar flatScrollBar ) {
+    this.flatScrollBar = flatScrollBar;
+  }
+
+  @Override
+  public void controlResized( ControlEvent event ) {
+    flatScrollBar.layout();
+    flatScrollBar.moveAbove( null );
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ShiftData.java

@@ -0,0 +1,32 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static com.minres.scviewer.database.ui.swt.sb.ComponentDistribution.divide;
+
+class ShiftData {
+
+  private final int slidePixels;
+  private final int movedPixels;
+  private final int buttonLength;
+
+  ShiftData( int buttonLength, int scrollBarPixels, int dragPixels, int movedPixels ) {
+    this.buttonLength = buttonLength;
+    this.slidePixels = calculateSlidePixels( scrollBarPixels, dragPixels );
+    this.movedPixels = movedPixels;
+  }
+
+  boolean canShift( ) {
+    return slidePixels > 0;
+  }
+
+  int calculateSelectionDelta( int selectionRange ) {
+    return divide( movedPixels * selectionRange, slidePixels );
+  }
+
+  static int calculateSelectionRange( FlatScrollBar scrollBar ) {
+    return scrollBar.getMaximum() - scrollBar.getMinimum() - scrollBar.getThumb();
+  }
+
+  private int calculateSlidePixels( int scrollBarPixels, int dragPixels ) {
+    return scrollBarPixels - 2 * buttonLength - dragPixels;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/UntypedSelectionAdapter.java

@@ -0,0 +1,43 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import java.util.Collection;
+
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+
+class UntypedSelectionAdapter extends SelectionAdapter {
+
+  final Listener listener;
+
+  UntypedSelectionAdapter( Listener listener ) {
+    this.listener = listener;
+  }
+
+  @Override
+  public void widgetSelected( SelectionEvent selectionEvent ) {
+    Event event = new Event();
+    event.widget = selectionEvent.widget;
+    event.detail = selectionEvent.detail;
+    listener.handleEvent( event );
+  }
+
+  static SelectionListener lookup( Collection<SelectionListener> listeners, Listener untypedListener ) {
+    for( SelectionListener listener : listeners ) {
+      if( isAdapterType( listener ) && matches( untypedListener, listener ) ) {
+        return listener;
+      }
+    }
+    return null;
+  }
+
+  private static boolean isAdapterType( SelectionListener listener ) {
+    return listener instanceof UntypedSelectionAdapter;
+  }
+
+  private static boolean matches( Listener untypedListener, SelectionListener listener ) {
+    return ( ( UntypedSelectionAdapter )listener ).listener == untypedListener;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ViewComponent.java

@@ -0,0 +1,7 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.widgets.Control;
+
+public interface ViewComponent {
+  Control getControl();
+}

plugins/com.minres.scviewer.database.ui.swt/src/org/eclipse/wb/swt/SWTResourceManager.java

@@ -29,17 +29,14 @@ import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.widgets.Display;
 
 /**
- * Utility class for managing OS resources associated with SWT controls such as
- * colors, fonts, images, etc.
+ * Utility class for managing OS resources associated with SWT controls such as colors, fonts, images, etc.
  * <p>
- * !!! IMPORTANT !!! Application code must explicitly invoke the
- * <code>dispose()</code> method to release the operating system resources
- * managed by cached objects when those objects and OS resources are no longer
+ * !!! IMPORTANT !!! Application code must explicitly invoke the <code>dispose()</code> method to release the
+ * operating system resources managed by cached objects when those objects and OS resources are no longer
  * needed (e.g. on application shutdown)
  * <p>
  * This class may be freely distributed as part of any application or plugin.
  * <p>
- * 
  * @author scheglov_ke
  * @author Dan Rubel
  */
@@ -49,54 +46,57 @@ public class SWTResourceManager {
 	// Color
 	//
 	////////////////////////////////////////////////////////////////////////////
-	private static Map<RGB, Color> colorMap = new HashMap<>();
-
-	private SWTResourceManager() {}
-	
+	private static Map<RGB, Color> m_colorMap = new HashMap<RGB, Color>();
 	/**
 	 * Returns the system {@link Color} matching the specific ID.
 	 * 
-	 * @param systemColorID the ID value for the color
+	 * @param systemColorID
+	 *            the ID value for the color
 	 * @return the system {@link Color} matching the specific ID
 	 */
 	public static Color getColor(int systemColorID) {
 		Display display = Display.getCurrent();
 		return display.getSystemColor(systemColorID);
 	}
-
 	/**
 	 * Returns a {@link Color} given its red, green and blue component values.
 	 * 
-	 * @param r the red component of the color
-	 * @param g the green component of the color
-	 * @param b the blue component of the color
-	 * @return the {@link Color} matching the given red, green and blue component
-	 *         values
+	 * @param r
+	 *            the red component of the color
+	 * @param g
+	 *            the green component of the color
+	 * @param b
+	 *            the blue component of the color
+	 * @return the {@link Color} matching the given red, green and blue component values
 	 */
 	public static Color getColor(int r, int g, int b) {
 		return getColor(new RGB(r, g, b));
 	}
-
 	/**
 	 * Returns a {@link Color} given its RGB value.
 	 * 
-	 * @param rgb the {@link RGB} value of the color
+	 * @param rgb
+	 *            the {@link RGB} value of the color
 	 * @return the {@link Color} matching the RGB value
 	 */
 	public static Color getColor(RGB rgb) {
-		return colorMap.computeIfAbsent(rgb, k -> new Color(Display.getCurrent(), rgb));
+		Color color = m_colorMap.get(rgb);
+		if (color == null) {
+			Display display = Display.getCurrent();
+			color = new Color(display, rgb);
+			m_colorMap.put(rgb, color);
+		}
+		return color;
 	}
-
 	/**
 	 * Dispose of all the cached {@link Color}'s.
 	 */
 	public static void disposeColors() {
-		for (Color color : colorMap.values()) {
+		for (Color color : m_colorMap.values()) {
 			color.dispose();
 		}
-		colorMap.clear();
+		m_colorMap.clear();
 	}
-
 	////////////////////////////////////////////////////////////////////////////
 	//
 	// Image
@@ -105,12 +105,12 @@ public class SWTResourceManager {
 	/**
 	 * Maps image paths to images.
 	 */
-	private static Map<String, Image> imageMap = new HashMap<>();
-
+	private static Map<String, Image> m_imageMap = new HashMap<String, Image>();
 	/**
 	 * Returns an {@link Image} encoded by the specified {@link InputStream}.
 	 * 
-	 * @param stream the {@link InputStream} encoding the image data
+	 * @param stream
+	 *            the {@link InputStream} encoding the image data
 	 * @return the {@link Image} encoded by the specified input stream
 	 */
 	protected static Image getImage(InputStream stream) throws IOException {
@@ -125,55 +125,52 @@ public class SWTResourceManager {
 			stream.close();
 		}
 	}
-
 	/**
 	 * Returns an {@link Image} stored in the file at the specified path.
 	 * 
-	 * @param path the path to the image file
+	 * @param path
+	 *            the path to the image file
 	 * @return the {@link Image} stored in the file at the specified path
 	 */
 	public static Image getImage(String path) {
-		Image image = imageMap.get(path);
+		Image image = m_imageMap.get(path);
 		if (image == null) {
 			try {
 				image = getImage(new FileInputStream(path));
-				imageMap.put(path, image);
+				m_imageMap.put(path, image);
 			} catch (Exception e) {
 				image = getMissingImage();
-				imageMap.put(path, image);
+				m_imageMap.put(path, image);
 			}
 		}
 		return image;
 	}
-
 	/**
-	 * Returns an {@link Image} stored in the file at the specified path relative to
-	 * the specified class.
+	 * Returns an {@link Image} stored in the file at the specified path relative to the specified class.
 	 * 
-	 * @param clazz the {@link Class} relative to which to find the image
-	 * @param path  the path to the image file, if starts with <code>'/'</code>
+	 * @param clazz
+	 *            the {@link Class} relative to which to find the image
+	 * @param path
+	 *            the path to the image file, if starts with <code>'/'</code>
 	 * @return the {@link Image} stored in the file at the specified path
 	 */
 	public static Image getImage(Class<?> clazz, String path) {
 		String key = clazz.getName() + '|' + path;
-		Image image = imageMap.get(key);
+		Image image = m_imageMap.get(key);
 		if (image == null) {
 			try {
 				image = getImage(clazz.getResourceAsStream(path));
-				imageMap.put(key, image);
+				m_imageMap.put(key, image);
 			} catch (Exception e) {
 				image = getMissingImage();
-				imageMap.put(key, image);
+				m_imageMap.put(key, image);
 			}
 		}
 		return image;
 	}
-
 	private static final int MISSING_IMAGE_SIZE = 10;
-
 	/**
-	 * @return the small {@link Image} that can be used as placeholder for missing
-	 *         image.
+	 * @return the small {@link Image} that can be used as placeholder for missing image.
 	 */
 	private static Image getMissingImage() {
 		Image image = new Image(Display.getCurrent(), MISSING_IMAGE_SIZE, MISSING_IMAGE_SIZE);
@@ -185,7 +182,6 @@ public class SWTResourceManager {
 		//
 		return image;
 	}
-
 	/**
 	 * Style constant for placing decorator image in top left corner of base image.
 	 */
@@ -195,13 +191,11 @@ public class SWTResourceManager {
 	 */
 	public static final int TOP_RIGHT = 2;
 	/**
-	 * Style constant for placing decorator image in bottom left corner of base
-	 * image.
+	 * Style constant for placing decorator image in bottom left corner of base image.
 	 */
 	public static final int BOTTOM_LEFT = 3;
 	/**
-	 * Style constant for placing decorator image in bottom right corner of base
-	 * image.
+	 * Style constant for placing decorator image in bottom right corner of base image.
 	 */
 	public static final int BOTTOM_RIGHT = 4;
 	/**
@@ -212,77 +206,83 @@ public class SWTResourceManager {
 	 * Maps images to decorated images.
 	 */
 	@SuppressWarnings("unchecked")
-	private static Map<Image, Map<Image, Image>>[] decoratedImageMap = new Map[LAST_CORNER_KEY];
-
+	private static Map<Image, Map<Image, Image>>[] m_decoratedImageMap = new Map[LAST_CORNER_KEY];
 	/**
 	 * Returns an {@link Image} composed of a base image decorated by another image.
 	 * 
-	 * @param baseImage the base {@link Image} that should be decorated
-	 * @param decorator the {@link Image} to decorate the base image
+	 * @param baseImage
+	 *            the base {@link Image} that should be decorated
+	 * @param decorator
+	 *            the {@link Image} to decorate the base image
 	 * @return {@link Image} The resulting decorated image
 	 */
 	public static Image decorateImage(Image baseImage, Image decorator) {
 		return decorateImage(baseImage, decorator, BOTTOM_RIGHT);
 	}
-
 	/**
 	 * Returns an {@link Image} composed of a base image decorated by another image.
 	 * 
-	 * @param baseImage the base {@link Image} that should be decorated
-	 * @param decorator the {@link Image} to decorate the base image
-	 * @param corner    the corner to place decorator image
+	 * @param baseImage
+	 *            the base {@link Image} that should be decorated
+	 * @param decorator
+	 *            the {@link Image} to decorate the base image
+	 * @param corner
+	 *            the corner to place decorator image
 	 * @return the resulting decorated {@link Image}
 	 */
 	public static Image decorateImage(final Image baseImage, final Image decorator, final int corner) {
 		if (corner <= 0 || corner >= LAST_CORNER_KEY) {
 			throw new IllegalArgumentException("Wrong decorate corner");
 		}
-		Map<Image, Map<Image, Image>> cornerDecoratedImageMap = decoratedImageMap[corner];
+		Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[corner];
 		if (cornerDecoratedImageMap == null) {
-			cornerDecoratedImageMap = new HashMap<>();
-			decoratedImageMap[corner] = cornerDecoratedImageMap;
+			cornerDecoratedImageMap = new HashMap<Image, Map<Image, Image>>();
+			m_decoratedImageMap[corner] = cornerDecoratedImageMap;
 		}
-		Map<Image, Image> decoratedMap = cornerDecoratedImageMap.computeIfAbsent(baseImage,
-				k -> new HashMap<Image, Image>());
-		return decoratedMap.computeIfAbsent(decorator, k -> {
+		Map<Image, Image> decoratedMap = cornerDecoratedImageMap.get(baseImage);
+		if (decoratedMap == null) {
+			decoratedMap = new HashMap<Image, Image>();
+			cornerDecoratedImageMap.put(baseImage, decoratedMap);
+		}
+		//
+		Image result = decoratedMap.get(decorator);
+		if (result == null) {
 			Rectangle bib = baseImage.getBounds();
 			Rectangle dib = decorator.getBounds();
-			Image result = new Image(Display.getCurrent(), bib.width, bib.height);
+			//
+			result = new Image(Display.getCurrent(), bib.width, bib.height);
+			//
 			GC gc = new GC(result);
 			gc.drawImage(baseImage, 0, 0);
-			switch (corner) {
-			case TOP_LEFT:
+			if (corner == TOP_LEFT) {
 				gc.drawImage(decorator, 0, 0);
-				break;
-			case TOP_RIGHT:
+			} else if (corner == TOP_RIGHT) {
 				gc.drawImage(decorator, bib.width - dib.width, 0);
-				break;
-			case BOTTOM_LEFT:
+			} else if (corner == BOTTOM_LEFT) {
 				gc.drawImage(decorator, 0, bib.height - dib.height);
-				break;
-			case BOTTOM_RIGHT:
+			} else if (corner == BOTTOM_RIGHT) {
 				gc.drawImage(decorator, bib.width - dib.width, bib.height - dib.height);
-				break;
-			default:
-				// do nothing
 			}
 			gc.dispose();
-			return result;
-		});
+			//
+			decoratedMap.put(decorator, result);
+		}
+		return result;
 	}
-
 	/**
 	 * Dispose all of the cached {@link Image}'s.
 	 */
 	public static void disposeImages() {
 		// dispose loaded images
-		for (Image image : imageMap.values()) {
-			image.dispose();
+		{
+			for (Image image : m_imageMap.values()) {
+				image.dispose();
+			}
+			m_imageMap.clear();
 		}
-		imageMap.clear();
 		// dispose decorated images
-		for (int i = 0; i < decoratedImageMap.length; i++) {
-			Map<Image, Map<Image, Image>> cornerDecoratedImageMap = decoratedImageMap[i];
+		for (int i = 0; i < m_decoratedImageMap.length; i++) {
+			Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[i];
 			if (cornerDecoratedImageMap != null) {
 				for (Map<Image, Image> decoratedMap : cornerDecoratedImageMap.values()) {
 					for (Image image : decoratedMap.values()) {
@@ -294,7 +294,6 @@ public class SWTResourceManager {
 			}
 		}
 	}
-
 	////////////////////////////////////////////////////////////////////////////
 	//
 	// Font
@@ -303,39 +302,45 @@ public class SWTResourceManager {
 	/**
 	 * Maps font names to fonts.
 	 */
-	private static Map<String, Font> fontMap = new HashMap<>();
+	private static Map<String, Font> m_fontMap = new HashMap<String, Font>();
 	/**
 	 * Maps fonts to their bold versions.
 	 */
-	private static Map<Font, Font> fontToBoldFontMap = new HashMap<>();
-
+	private static Map<Font, Font> m_fontToBoldFontMap = new HashMap<Font, Font>();
 	/**
 	 * Returns a {@link Font} based on its name, height and style.
 	 * 
-	 * @param name   the name of the font
-	 * @param height the height of the font
-	 * @param style  the style of the font
+	 * @param name
+	 *            the name of the font
+	 * @param height
+	 *            the height of the font
+	 * @param style
+	 *            the style of the font
 	 * @return {@link Font} The font matching the name, height and style
 	 */
 	public static Font getFont(String name, int height, int style) {
 		return getFont(name, height, style, false, false);
 	}
-
 	/**
-	 * Returns a {@link Font} based on its name, height and style. Windows-specific
-	 * strikeout and underline flags are also supported.
+	 * Returns a {@link Font} based on its name, height and style. Windows-specific strikeout and underline
+	 * flags are also supported.
 	 * 
-	 * @param name      the name of the font
-	 * @param size      the size of the font
-	 * @param style     the style of the font
-	 * @param strikeout the strikeout flag (warning: Windows only)
-	 * @param underline the underline flag (warning: Windows only)
-	 * @return {@link Font} The font matching the name, height, style, strikeout and
-	 *         underline
+	 * @param name
+	 *            the name of the font
+	 * @param size
+	 *            the size of the font
+	 * @param style
+	 *            the style of the font
+	 * @param strikeout
+	 *            the strikeout flag (warning: Windows only)
+	 * @param underline
+	 *            the underline flag (warning: Windows only)
+	 * @return {@link Font} The font matching the name, height, style, strikeout and underline
 	 */
 	public static Font getFont(String name, int size, int style, boolean strikeout, boolean underline) {
 		String fontName = name + '|' + size + '|' + style + '|' + strikeout + '|' + underline;
-		return fontMap.computeIfAbsent(fontName, k -> {
+		Font font = m_fontMap.get(fontName);
+		if (font == null) {
 			FontData fontData = new FontData(name, size, style);
 			if (strikeout || underline) {
 				try {
@@ -349,45 +354,47 @@ public class SWTResourceManager {
 							logFontClass.getField("lfUnderline").set(logFont, Byte.valueOf((byte) 1)); //$NON-NLS-1$
 						}
 					}
-				} catch (Exception e) {
+				} catch (Throwable e) {
+					System.err.println("Unable to set underline or strikeout" + " (probably on a non-Windows platform). " + e); //$NON-NLS-1$ //$NON-NLS-2$
 				}
 			}
-			return new Font(Display.getCurrent(), fontData);
-
-		});
-
+			font = new Font(Display.getCurrent(), fontData);
+			m_fontMap.put(fontName, font);
+		}
+		return font;
 	}
-
 	/**
 	 * Returns a bold version of the given {@link Font}.
 	 * 
-	 * @param baseFont the {@link Font} for which a bold version is desired
+	 * @param baseFont
+	 *            the {@link Font} for which a bold version is desired
 	 * @return the bold version of the given {@link Font}
 	 */
 	public static Font getBoldFont(Font baseFont) {
-		return fontToBoldFontMap.computeIfAbsent(baseFont, k -> {
-			FontData[] fontDatas = baseFont.getFontData();
+		Font font = m_fontToBoldFontMap.get(baseFont);
+		if (font == null) {
+			FontData fontDatas[] = baseFont.getFontData();
 			FontData data = fontDatas[0];
-			return new Font(Display.getCurrent(), data.getName(), data.getHeight(), SWT.BOLD);
-		});
+			font = new Font(Display.getCurrent(), data.getName(), data.getHeight(), SWT.BOLD);
+			m_fontToBoldFontMap.put(baseFont, font);
+		}
+		return font;
 	}
-
 	/**
 	 * Dispose all of the cached {@link Font}'s.
 	 */
 	public static void disposeFonts() {
 		// clear fonts
-		for (Font font : fontMap.values()) {
+		for (Font font : m_fontMap.values()) {
 			font.dispose();
 		}
-		fontMap.clear();
+		m_fontMap.clear();
 		// clear bold fonts
-		for (Font font : fontToBoldFontMap.values()) {
+		for (Font font : m_fontToBoldFontMap.values()) {
 			font.dispose();
 		}
-		fontToBoldFontMap.clear();
+		m_fontToBoldFontMap.clear();
 	}
-
 	////////////////////////////////////////////////////////////////////////////
 	//
 	// Cursor
@@ -396,38 +403,40 @@ public class SWTResourceManager {
 	/**
 	 * Maps IDs to cursors.
 	 */
-	private static Map<Integer, Cursor> idToCursorMap = new HashMap<>();
-
+	private static Map<Integer, Cursor> m_idToCursorMap = new HashMap<Integer, Cursor>();
 	/**
 	 * Returns the system cursor matching the specific ID.
 	 * 
-	 * @param id int The ID value for the cursor
+	 * @param id
+	 *            int The ID value for the cursor
 	 * @return Cursor The system cursor matching the specific ID
 	 */
 	public static Cursor getCursor(int id) {
 		Integer key = Integer.valueOf(id);
-		return idToCursorMap.computeIfAbsent(key, k -> new Cursor(Display.getDefault(), id));
+		Cursor cursor = m_idToCursorMap.get(key);
+		if (cursor == null) {
+			cursor = new Cursor(Display.getDefault(), id);
+			m_idToCursorMap.put(key, cursor);
+		}
+		return cursor;
 	}
-
 	/**
 	 * Dispose all of the cached cursors.
 	 */
 	public static void disposeCursors() {
-		for (Cursor cursor : idToCursorMap.values()) {
+		for (Cursor cursor : m_idToCursorMap.values()) {
 			cursor.dispose();
 		}
-		idToCursorMap.clear();
+		m_idToCursorMap.clear();
 	}
-
 	////////////////////////////////////////////////////////////////////////////
 	//
 	// General
 	//
 	////////////////////////////////////////////////////////////////////////////
 	/**
-	 * Dispose of cached objects and their underlying OS resources. This should only
-	 * be called when the cached objects are no longer needed (e.g. on application
-	 * shutdown).
+	 * Dispose of cached objects and their underlying OS resources. This should only be called when the cached
+	 * objects are no longer needed (e.g. on application shutdown).
 	 */
 	public static void dispose() {
 		disposeColors();

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java

@@ -787,18 +787,15 @@ public class WaveformViewer implements IFileChangeListener, IPreferenceChangeLis
 	protected void restoreWaveformViewerState(Map<String, String> state) {
 		Integer waves = state.containsKey(SHOWN_WAVEFORM+"S") ? Integer.parseInt(state.get(SHOWN_WAVEFORM + "S")):0; //$NON-NLS-1$ //$NON-NLS-2$
 		List<TrackEntry> trackEntries = new LinkedList<>();
+		List<TrackEntry> selectedTrackEntries = new LinkedList<>();
 		for (int i = 0; i < waves; i++) {
 			IWaveform waveform = database.getStreamByName(state.get(SHOWN_WAVEFORM + i));
 			if (waveform != null) {
 				TrackEntry trackEntry = waveformPane.addWaveform(waveform, -1);
 				//check if t is selected
-				boolean isSelected = Boolean.parseBoolean(state.get(SHOWN_WAVEFORM + i + WAVEFORM_SELECTED));
-				if(isSelected) {
-					trackEntry.selected = true;
-				} else {
-					trackEntry.selected = false;
-				}
 				trackEntries.add(trackEntry);
+				if(Boolean.parseBoolean(state.get(SHOWN_WAVEFORM + i + WAVEFORM_SELECTED)))
+					selectedTrackEntries.add(trackEntry);
 				String v = state.get(SHOWN_WAVEFORM + i + VALUE_DISPLAY);
 				if(v!=null)
 					trackEntry.valueDisplay=ValueDisplay.valueOf(v);
@@ -856,6 +853,8 @@ public class WaveformViewer implements IFileChangeListener, IPreferenceChangeLis
 			} catch (NumberFormatException e) {
 			}
 		}
+		ISelection sel = new StructuredSelection(selectedTrackEntries);
+		waveformPane.setSelection(sel);
 		updateAll();
 	}
 

products/com.minres.scviewer.e4.product/scviewer.product

@@ -78,7 +78,6 @@
 
    <repositories>
       <repository location="http://https://minres.github.io/SCViewer/repository" enabled="true" />
-      <repository location="http://https://minres.github.io/SCViewer/repository" enabled="true" />
    </repositories>
 
    <preferencesInfo>