implement scrollbar adapter and first version of zooming scrollbar

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

@@ -0,0 +1,37 @@
+package com.minres.scviewer.database.ui.swt.internal;
+
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.graphics.Point;
+
+public interface IScrollBar {
+
+	void setSelection(int i);
+
+	int getSelection();
+
+	void setEnabled(boolean b);
+
+	void setVisible(boolean b);
+
+	void addSelectionListener(SelectionListener selectionListener);
+
+	void setIncrement(int i);
+
+	void setPageIncrement(int width);
+
+	void setMinimum(int i);
+
+	void setMaximum(int width);
+
+	int getMaximum();
+
+	void setThumb(int clientWidthw);
+
+	Point getSize();
+
+	int getStyle();
+
+	boolean isVisible();
+
+}

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

@@ -0,0 +1,7 @@
+package com.minres.scviewer.database.ui.swt.internal;
+
+public interface IWaveformScrollBarProvider {
+
+	IScrollBar getHorizontalSb();
+	IScrollBar getVerticalSb();
+}

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

@@ -0,0 +1,83 @@
+package com.minres.scviewer.database.ui.swt.internal;
+
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.ScrollBar;
+
+public class ScrollBarAdapter implements IScrollBar {
+
+	ScrollBar delegate;
+	public ScrollBarAdapter(ScrollBar delegate) {
+		this.delegate=delegate;
+	}
+
+	@Override
+	public void setSelection(int i) {
+		delegate.setSelection(i);
+	}
+
+	@Override
+	public int getSelection() {
+		return delegate.getSelection();
+	}
+
+	@Override
+	public void setEnabled(boolean b) {
+		delegate.setEnabled(b);
+	}
+
+	@Override
+	public void setVisible(boolean b) {
+		delegate.setVisible(b);
+	}
+
+	@Override
+	public void addSelectionListener(SelectionListener selectionListener) {
+		delegate.addSelectionListener(selectionListener);	}
+
+	@Override
+	public void setIncrement(int i) {
+		delegate.setIncrement(i);
+	}
+
+	@Override
+	public void setPageIncrement(int width) {
+		delegate.setPageIncrement(width);
+	}
+
+	@Override
+	public void setMinimum(int i) {
+		delegate.setMinimum(i);
+	}
+
+	@Override
+	public void setMaximum(int width) {
+		delegate.setMaximum(width);
+	}
+
+	@Override
+	public int getMaximum() {
+		return delegate.getMaximum();
+	}
+
+	@Override
+	public void setThumb(int clientWidthw) {
+		delegate.setThumb(clientWidthw);
+	}
+
+	@Override
+	public Point getSize() {
+		return delegate.getSize();
+	}
+
+	@Override
+	public int getStyle() {
+		return delegate.getStyle();
+	}
+
+	@Override
+	public boolean isVisible() {
+		return delegate.isVisible();
+	}
+
+}

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

@@ -31,7 +31,6 @@ 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.swt.widgets.ScrollBar;
 
 import com.google.common.collect.Lists;
 import com.minres.scviewer.database.EventEntry;
@@ -81,6 +80,9 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 
 	private List<CursorPainter> cursorPainters;
 
+	IScrollBar horizontal;
+	IScrollBar vertical;
+
 	HashMap<IWaveform, IWaveformPainter> wave2painterMap;
 	/**
 	 * Constructor for ScrollableCanvas.
@@ -90,8 +92,8 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 	 * @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, IWaveformScrollBarProvider scrollbarProvider) {
+		super(parent, style | SWT.DOUBLE_BUFFERED | SWT.NO_BACKGROUND);
 		this.styleProvider=styleProvider;
 		addControlListener(new ControlAdapter() { /* resize listener. */
 			@Override
@@ -106,6 +108,8 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 		cursorPainters= new ArrayList<>();
 		wave2painterMap=new HashMap<>();
 
+		horizontal = (style& SWT.H_SCROLL)==0?scrollbarProvider.getHorizontalSb() : new ScrollBarAdapter(getHorizontalBar());
+		vertical = (style& SWT.V_SCROLL)==0?scrollbarProvider.getVerticalSb() : new ScrollBarAdapter(getVerticalBar());
 		initScrollBars();
 		// order is important: it is bottom to top
 		trackAreaPainter=new TrackAreaPainter(this);
@@ -149,12 +153,10 @@ 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();
+		if(x<=0) horizontal.setSelection(-x);
+		x = -horizontal.getSelection();
+		if(y<=0) vertical.setSelection(-y);
+		y = -vertical.getSelection();
 		origin.x = x;
 		origin.y = y;
 		syncScrollBars();
@@ -284,7 +286,6 @@ 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() {
@@ -292,10 +293,9 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 			public void widgetSelected(SelectionEvent event) {
 				if (painterList.isEmpty())
 					return;
-				setOrigin(-((ScrollBar) event.widget).getSelection(), origin.y);
+				setOrigin(-horizontal.getSelection(), origin.y);
 			}
 		});
-		ScrollBar vertical = getVerticalBar();
 		vertical.setEnabled(false);
 		vertical.setVisible(true);
 		vertical.addSelectionListener(new SelectionAdapter() {
@@ -303,7 +303,7 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 			public void widgetSelected(SelectionEvent event) {
 				if (painterList.isEmpty())
 					return;
-				setOrigin(origin.x, -((ScrollBar) event.widget).getSelection());
+				setOrigin(origin.x, -vertical.getSelection());
 			}
 		});
 	}
@@ -321,10 +321,9 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 		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;
+		horizontal.setIncrement(clientWidthw / 100);
+		horizontal.setPageIncrement(clientWidthw/2);
 		if (width > clientWidthw) { /* image is wider than client area */
 			horizontal.setMinimum(0);
 			horizontal.setMaximum((int)width);
@@ -338,10 +337,9 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 		horizontal.setThumb(clientWidthw);
 		horizontal.setSelection(-origin.x);
 
-		ScrollBar vertical = getVerticalBar();
-		vertical.setIncrement(getClientArea().height / 100);
-		vertical.setPageIncrement(getClientArea().height);
 		int clientHeighth = clientArea.height;
+		vertical.setIncrement(clientHeighth / 100);
+		vertical.setPageIncrement(clientHeighth/2);
 		if (height > clientHeighth) { /* image is higher than client area */
 			vertical.setMinimum(0);
 			vertical.setMaximum(height);
@@ -437,8 +435,8 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 		int lower = (int) (tx.getBeginTime() / scaleFactor);
 		int higher = (int) (tx.getEndTime() / scaleFactor);
 		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 +465,8 @@ 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) {
@@ -484,8 +481,8 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 	public void reveal(long time) {
 		int scaledTime = (int) (time / scaleFactor);
 		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)) {

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

@@ -95,6 +95,7 @@ import com.minres.scviewer.database.ui.IWaveformZoom;
 import com.minres.scviewer.database.ui.TrackEntry;
 import com.minres.scviewer.database.ui.swt.internal.slider.ImageButton;
 import com.minres.scviewer.database.ui.swt.internal.slider.RangeSlider;
+import com.minres.scviewer.database.ui.swt.internal.slider.ZoomingScrollbar;
 import com.minres.scviewer.database.ui.swt.sb.FlatScrollBar;
 
 public class WaveformView implements IWaveformView {
@@ -343,40 +344,23 @@ public class WaveformView implements IWaveformView {
 		gl_waveformPane.marginHeight = 0;
 		waveformPane.setLayout(gl_waveformPane);
 		
-		waveformCanvas = new WaveformCanvas(waveformPane, SWT.NONE | SWT.V_SCROLL /*| SWT.H_SCROLL*/, styleProvider);
+		IWaveformScrollBarProvider sbProvider = new IWaveformScrollBarProvider() {
+			@Override
+			public IScrollBar getVerticalSb() {
+				return null;
+			}
+			
+			@Override
+			public IScrollBar getHorizontalSb() {
+				ZoomingScrollbar timeSliderPane = new ZoomingScrollbar(waveformPane, SWT.NONE);
+				GridData gd_timeSliderPane = new GridData(SWT.FILL, SWT.BOTTOM, false, false, 1, 1);
+				timeSliderPane.setLayoutData(gd_timeSliderPane);
+				return timeSliderPane;
+			}
+		};
+		waveformCanvas = new WaveformCanvas(waveformPane, SWT.NONE | SWT.V_SCROLL /*| SWT.H_SCROLL*/, styleProvider, sbProvider);
 		waveformCanvas.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
 		
-		
-		//Composite timeSliderPane = new WaveformSlider(waveformPane, SWT.NONE);
-		Composite timeSliderPane = new Composite(waveformPane, SWT.NONE);
-//		timeSliderPane.setBackground(SWTResourceManager.getColor(SWT.COLOR_RED));
-		GridData gd_timeSliderPane = new GridData(SWT.FILL, SWT.BOTTOM, false, false, 1, 1);
-//		gd_timeSliderPane.heightHint = 22;
-		timeSliderPane.setLayoutData(gd_timeSliderPane);
-		GridLayout  gl_timeSliderPane = new GridLayout(3, false);
-		gl_timeSliderPane.marginHeight=0;
-		gl_timeSliderPane.marginWidth=0;
-		gl_timeSliderPane.horizontalSpacing=0;
-		gl_timeSliderPane.verticalSpacing=0;
-		timeSliderPane.setLayout(gl_timeSliderPane);
-		ImageButton b1 = new ImageButton(timeSliderPane, SWT.NONE);
-		GridData gd_b1 = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
-		gd_b1.widthHint=18;
-		gd_b1.heightHint=18;
-		b1.setLayoutData(gd_b1);
-		b1.setImage(SWTResourceManager.getImage(RangeSlider.class, "bullet_left.png"));
-		
-		Composite timeSlider = new RangeSlider(timeSliderPane, SWT.ON|SWT.HIGH|SWT.SMOOTH|SWT.CONTROL);
-		GridData gd_timeSlide = new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1);
-		timeSlider.setLayoutData(gd_timeSlide);
-		
-		ImageButton b2 = new ImageButton(timeSliderPane, SWT.NONE);
-		GridData gd_b2 = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
-		gd_b2.widthHint=18;
-		gd_b2.heightHint=18;
-		b2.setLayoutData(gd_b2);
-		b2.setImage(SWTResourceManager.getImage(RangeSlider.class, "bullet_right.png"));
-
 		// create the name pane
 		createTextPane(namePane, "Name");
 

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

@@ -1,108 +0,0 @@
-package com.minres.scviewer.database.ui.swt.internal;
-
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.swt.layout.GridLayout;
-import org.eclipse.swt.widgets.Button;
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.widgets.Label;
-import org.eclipse.swt.widgets.Canvas;
-import org.eclipse.swt.layout.GridData;
-import org.eclipse.wb.swt.ResourceManager;
-import org.eclipse.swt.custom.SashForm;
-import org.eclipse.swt.widgets.Slider;
-import org.eclipse.wb.swt.SWTResourceManager;
-import org.eclipse.swt.widgets.Scale;
-import org.eclipse.jface.fieldassist.ControlDecoration;
-import org.eclipse.swt.layout.FormLayout;
-import org.eclipse.swt.layout.FillLayout;
-
-public class ZoomingScrollbar extends Composite {
-
-	/**
-	 * Create the composite.
-	 * @param parent
-	 * @param style
-	 */
-	public ZoomingScrollbar(Composite parent, int style) {
-		super(parent, SWT.BORDER | SWT.NO_FOCUS);
-		GridLayout gridLayout = new GridLayout(3, false);
-		gridLayout.horizontalSpacing = 0;
-		gridLayout.verticalSpacing = 0;
-		gridLayout.marginWidth = 0;
-		gridLayout.marginHeight = 0;
-		setLayout(gridLayout);
-		
-		Button scrlLeft = new Button(this, SWT.BORDER | SWT.FLAT | SWT.CENTER);
-		scrlLeft.setFont(SWTResourceManager.getFont("Sans", 5, SWT.NORMAL));
-		GridData gd_scrlLeft = new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1);
-		gd_scrlLeft.heightHint = 16;
-		gd_scrlLeft.widthHint = 16;
-		scrlLeft.setLayoutData(gd_scrlLeft);
-		
-		Slider slider = new Slider(this, SWT.NONE);
-		slider.setBackground(SWTResourceManager.getColor(SWT.COLOR_WIDGET_BACKGROUND));
-		GridData gd_canvas = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1);
-		gd_canvas.heightHint = 16;
-		slider.setLayoutData(gd_canvas);
-		
-		Button scrlRight = new Button(this, SWT.BORDER | SWT.FLAT | SWT.CENTER);
-		scrlRight.setAlignment(SWT.CENTER);
-		GridData gd_scrlRight = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
-		gd_scrlRight.heightHint = 16;
-		gd_scrlRight.widthHint = 16;
-		scrlRight.setLayoutData(gd_scrlRight);
-		
-		SashForm sashForm = new SashForm(this, SWT.NONE);
-		sashForm.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 3, 1));
-		
-		Composite composite = new Composite(sashForm, SWT.NONE);
-		composite.setBackground(SWTResourceManager.getColor(SWT.COLOR_MAGENTA));
-		composite.setLayout(null);
-		
-		Composite wavformPane = new Composite(sashForm, SWT.BORDER | SWT.NO_FOCUS);
-		wavformPane.setBackground(SWTResourceManager.getColor(SWT.COLOR_BLUE));
-		GridLayout gl_wavformPane = new GridLayout(1, false);
-		gl_wavformPane.verticalSpacing = 0;
-		gl_wavformPane.marginWidth = 0;
-		gl_wavformPane.marginHeight = 0;
-		wavformPane.setLayout(gl_wavformPane);
-		
-		Composite waveformCanvas = new Composite(wavformPane, SWT.NONE);
-		waveformCanvas.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
-		
-		Composite timeSlider = new Composite(wavformPane, SWT.BORDER | SWT.NO_FOCUS);
-		GridLayout gl_timeSlider = new GridLayout(3, false);
-		gl_timeSlider.marginWidth = 0;
-		gl_timeSlider.verticalSpacing = 0;
-		gl_timeSlider.marginHeight = 0;
-		gl_timeSlider.horizontalSpacing = 0;
-		timeSlider.setLayout(gl_timeSlider);
-		GridData gd_timeSlider = new GridData(SWT.FILL, SWT.BOTTOM, false, false, 1, 1);
-		gd_timeSlider.heightHint = 16;
-		timeSlider.setLayoutData(gd_timeSlider);
-		
-		Button buttonLeft = new Button(timeSlider, SWT.BORDER | SWT.FLAT | SWT.CENTER);
-		buttonLeft.setFont(SWTResourceManager.getFont("Sans", 5, SWT.NORMAL));
-		GridData gd_buttonLeft = new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1);
-		gd_buttonLeft.widthHint = 10;
-		gd_buttonLeft.heightHint = 16;
-		buttonLeft.setLayoutData(gd_buttonLeft);
-		
-		Slider slider2 = new Slider(timeSlider, SWT.NONE);
-		slider2.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, true, 1, 1));
-		
-		Button buttonRight = new Button(timeSlider, SWT.FLAT | SWT.CENTER);
-		buttonRight.setFont(SWTResourceManager.getFont("Sans", 5, SWT.NORMAL));
-		GridData gd_buttonRight = new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1);
-		gd_buttonRight.widthHint = 10;
-		gd_buttonRight.heightHint = 16;
-		buttonRight.setLayoutData(gd_buttonRight);
-		sashForm.setWeights(new int[] {1, 1});
-
-	}
-
-	@Override
-	protected void checkSubclass() {
-		// Disable the check that prevents subclassing of SWT components
-	}
-}

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

@@ -1,111 +1,100 @@
 package com.minres.scviewer.database.ui.swt.internal.slider;
 
 import org.eclipse.swt.SWT;
-import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.SWTException;
+import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.graphics.GC;
 import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.graphics.ImageData;
 import org.eclipse.swt.graphics.Point;
-import org.eclipse.swt.graphics.Rectangle;
-import org.eclipse.swt.graphics.Transform;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Event;
-import org.eclipse.swt.widgets.Listener;
 
 public class ImageButton extends Composite
 {
-	private Color   textColor;
-	private Image   image;
-	private Image   grayImage;
-	private ImageData imageData;
-	private String  text = "";
+	private Image   hoverImage;
+	private Image   normalImage;
+	private Image   pressedImage;
 	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)
-	{
+	public ImageButton(Composite parent, int style)	{
 		super(parent, style);
-
-		textColor = Display.getDefault().getSystemColor(SWT.COLOR_WHITE);
-
-		/* Add dispose listener for the image */
+		
+		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 (image != null)
-					image.dispose();
+			if (hoverImage != null)	hoverImage.dispose();
+			if (normalImage != null) normalImage.dispose();
+			if (pressedImage != null) pressedImage.dispose();
 		});
 
-		/* Add custom paint listener that paints the stars */
 		addListener(SWT.Paint, event -> {
-				paintControl(event);
+			paintControl(event);
 		});
 
-		/* Listen for click events */
-		addListener(SWT.MouseDown, event -> {
-				System.out.println("Click");
-		});
 		addListener(SWT.MouseDown, event -> {
+			pressed=true;
+			notifyListeners();
+		    if(autoFire) actionTimer.activate();
+			redraw();
 		});
 
 		addListener(SWT.MouseUp, event -> {
+			pressed=false;
+			redraw();
 		});
 
 		addListener(SWT.MouseMove, event -> {
-			hover=false;
+			Point sz = ((ImageButton)event.widget).getSize();
+			final boolean within_x = event.x>0 && event.x<sz.x-1;
+			final boolean within_y = event.y>0 && event.y<sz.y-1;
+			hover= within_x && within_y;
 			redraw();
 		});
-
-		addListener(SWT.MouseWheel, event -> {
-		});
-
-		addListener(SWT.MouseHover, event -> {
-			hover=true;
-			redraw();
-		});
-
-		addListener(SWT.MouseDoubleClick, event -> {
-		});
 	}
 
 	private void paintControl(Event event) { 
 		GC gc = event.gc;
 
-		if (image != null)
-		{
-//			gc.drawImage(image, 1, 1);
-//			if(hover) {
-//				Rectangle rect = image.getBounds ();
-//				Transform tr = new Transform (event.display);
-//				tr.setElements (1, 0, 0, -1, 1, 2*(1+rect.height));
-//				gc.setTransform (tr);
-//				gc.drawImage (image, 1, 1);
-//				gc.setTransform (null);
-//			}
-			if(hover) {
-				gc.drawImage(image, 1, 1);
+		if (hoverImage != null)	{
+			if(pressed)
+				gc.drawImage(pressedImage, 1, 1);
+			else if(hover) {
+				gc.drawImage(hoverImage, 1, 1);
 			} else {
-				gc.drawImage(grayImage, 1, 1);
+				gc.drawImage(normalImage, 1, 1);
 			}
-			Point textSize = gc.textExtent(text);
-			gc.setForeground(textColor);
-			gc.drawText(text, (width - textSize.x) / 2 + 1, (height - textSize.y) / 2 + 1, true);
 		}
 	}
 
-	public void setImage(Image img)
+	public void setImage(Image[] imgs)
 	{
-		image = new Image(Display.getDefault(), img, SWT.IMAGE_COPY);
-		grayImage = new Image(Display.getDefault(),img,SWT.IMAGE_GRAY);
-		width = img.getBounds().width;
-		height = img.getBounds().height;
-		imageData = img.getImageData();
-		redraw();
-	}
-
-	public void setText(String text)
-	{
-		this.text = text;
+		Display d = Display.getDefault();
+		hoverImage = new Image(d, imgs[0], SWT.IMAGE_COPY);
+		normalImage = imgs.length>1? 
+				new Image(d, imgs[1], SWT.IMAGE_COPY):
+					new Image(d,imgs[0],SWT.IMAGE_GRAY);
+		pressedImage = imgs.length>2?
+				new Image(d, imgs[2], SWT.IMAGE_COPY):
+					new Image(d,imgs[0],SWT.IMAGE_DISABLE);
+		width = imgs[0].getBounds().width;
+		height = imgs[0].getBounds().height;
 		redraw();
 	}
 
@@ -125,5 +114,77 @@ public class ImageButton extends Composite
 		/* Return computed dimensions plus border */
 		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

@@ -59,7 +59,7 @@ public class RangeSlider extends Canvas {
 	private int maximum;
 	private int lowerValue;
 	private int upperValue;
-	private final Image slider, sliderHover, sliderDrag, sliderSelected;
+	private final Image[] slider, sliderHover, sliderDrag, sliderSelected;
 	private final Image vSlider, vSliderHover, vSliderDrag, vSliderSelected;
 	private int orientation;
 	private int increment;
@@ -114,10 +114,18 @@ public class RangeSlider extends Canvas {
 		maximum = upperValue = 100;
 		increment = 1;
 		pageIncrement = 10;
-		slider = SWTResourceManager.getImage(this.getClass(), "marker_r.png");
-		sliderHover = SWTResourceManager.getImage(this.getClass(), "marker_r_lt.png");
-		sliderDrag = SWTResourceManager.getImage(this.getClass(), "marker_r_bl.png");
-		sliderSelected = SWTResourceManager.getImage(this.getClass(), "marker_r_bl_lt.png");
+		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_lt.png"),
+				SWTResourceManager.getImage(this.getClass(), "marker_r_lt.png")};
+		sliderDrag = new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "marker_l_bl.png"),
+				SWTResourceManager.getImage(this.getClass(), "marker_r_bl.png")};
+		sliderSelected = new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "marker_l_bl_lt.png"),
+				SWTResourceManager.getImage(this.getClass(), "marker_r_bl_lt.png")};
 
 		vSlider = SWTResourceManager.getImage(this.getClass(), "h-slider-normal.png");
 		vSliderHover = SWTResourceManager.getImage(this.getClass(), "h-slider-hover.png");
@@ -371,7 +379,7 @@ public class RangeSlider extends Canvas {
 		if (coordLower == null) {
 			return;
 		}
-		final Image img = orientation == SWT.HORIZONTAL ? slider : vSlider;
+		final Image img = orientation == SWT.HORIZONTAL ? slider[0] : vSlider;
 		final int x = e.x, y = e.y;
 		lowerHover = x >= coordLower.x && x <= coordLower.x + img.getBounds().width && y >= coordLower.y && y <= coordLower.y + img.getBounds().height;
 		upperHover = ((e.stateMask & (SWT.CTRL | SWT.SHIFT)) != 0 || !lowerHover) && //
@@ -621,7 +629,6 @@ public class RangeSlider extends Canvas {
 	 */
 	private void drawHorizontalRangeSlider(final GC gc) {
 		drawBackgroundHorizontal(gc);
-		drawBarsHorizontal(gc);
 		if (lowerHover || (selectedElement & LOWER) != 0) {
 			coordUpper = drawHorizontalKnob(gc, upperValue, true);
 			coordLower = drawHorizontalKnob(gc, lowerValue, false);
@@ -640,6 +647,7 @@ public class RangeSlider extends Canvas {
 		final Rectangle clientArea = getClientArea();
 
 		gc.setBackground(getBackground());
+		//gc.setBackground(SWTResourceManager.getColor(SWT.COLOR_BLUE));//getBackground());
 		gc.fillRectangle(clientArea);
 
 		if (isEnabled()) {
@@ -647,7 +655,7 @@ public class RangeSlider extends Canvas {
 		} else {
 			gc.setForeground(getDisplay().getSystemColor(SWT.COLOR_GRAY));
 		}
-		gc.drawRoundRectangle(minHeight/3+imgWidth, minHeight/3, clientArea.width - 2*(minHeight/3+imgWidth), clientArea.height -  2*minHeight/3+3, 3, 3);
+		gc.drawRoundRectangle(imgWidth, minHeight/3, clientArea.width - 2*imgWidth, clientArea.height -  2*minHeight/3, 3, 3);
 
 		final float pixelSize = computePixelSizeForHorizontalSlider();
 		final int startX = (int) (pixelSize * lowerValue);
@@ -657,7 +665,7 @@ public class RangeSlider extends Canvas {
 		} else {
 			gc.setBackground(getDisplay().getSystemColor(SWT.COLOR_GRAY));
 		}
-		gc.fillRectangle(minHeight/3+3 + startX, minHeight/3, endX - startX - 3, clientArea.height - 2*minHeight/3+3);
+		gc.fillRectangle(imgWidth+startX, minHeight/3, endX - startX, clientArea.height - 2*minHeight/3);
 
 	}
 
@@ -665,15 +673,7 @@ public class RangeSlider extends Canvas {
 	 * @return how many pixels corresponds to 1 point of value
 	 */
 	private float computePixelSizeForHorizontalSlider() {
-		return (getClientArea().width - 20f) / (maximum - minimum);
-	}
-
-	/**
-	 * Draw the bars
-	 *
-	 * @param gc graphic context
-	 */
-	private void drawBarsHorizontal(final GC gc) {
+		return (getClientArea().width - 2.0f*imgWidth) / (maximum - minimum);
 	}
 
 	/**
@@ -687,33 +687,36 @@ public class RangeSlider extends Canvas {
 	 */
 	private Point drawHorizontalKnob(final GC gc, final int value, final boolean upper) {
 		final float pixelSize = computePixelSizeForHorizontalSlider();
-		final int x = (int) (pixelSize * value);
+		int x = (int) (pixelSize * value);
+		final int idx = upper?1:0;
 		Image image;
 		if (upper) {
 			if (upperHover) {
-				image = dragInProgress || (selectedElement & UPPER) != 0 ? sliderDrag : sliderHover;
+				image = dragInProgress || (selectedElement & UPPER) != 0 ? sliderDrag[idx] : sliderHover[idx];
 			} else if ((selectedElement & UPPER) != 0 && !lowerHover) {
-				image = hasFocus ? sliderSelected : sliderHover;
+				image = hasFocus ? sliderSelected[idx] : sliderHover[idx];
 			} else {
-				image = slider;
+				image = slider[idx];
 			}
 		} else {
 			if (lowerHover) {
-				image = dragInProgress || (selectedElement & LOWER) != 0 ? sliderDrag : sliderHover;
+				image = dragInProgress || (selectedElement & LOWER) != 0 ? sliderDrag[idx] : sliderHover[idx];
 			} else if ((selectedElement & LOWER) != 0 && !upperHover) {
-				image = hasFocus ? sliderSelected : sliderHover;
+				image = hasFocus ? sliderSelected[idx] : sliderHover[idx];
 			} else {
-				image = slider;
+				image = slider[idx];
 			}
 		}
+		if(upper)
+			x+=slider[idx].getBounds().width;
 		if (isEnabled()) {
-			gc.drawImage(image, x + 5, getClientArea().height / 2 - slider.getBounds().height / 2);
+			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 + 5, getClientArea().height / 2 - slider.getBounds().height / 2);
+			gc.drawImage(temp, x, getClientArea().height / 2 - slider[idx].getBounds().height / 2);
 			temp.dispose();
 		}
-		return new Point(x + 5, getClientArea().height / 2 - slider.getBounds().height / 2);
+		return new Point(x, getClientArea().height / 2 - slider[idx].getBounds().height / 2);
 	}
 
 	/**
@@ -775,7 +778,6 @@ public class RangeSlider extends Canvas {
 	 * @param gc graphic context
 	 */
 	private void drawBarsVertical(final GC gc) {
-		final Rectangle clientArea = getClientArea();
 		if (isEnabled()) {
 			gc.setForeground(getForeground());
 		} else {

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

@@ -0,0 +1,110 @@
+package com.minres.scviewer.database.ui.swt.internal.slider;
+
+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;
+
+import com.minres.scviewer.database.ui.swt.internal.IScrollBar;
+
+public class ZoomingScrollbar extends Composite implements IScrollBar {
+	RangeSlider timeSlider;
+	/**
+	 * Create the composite.
+	 * @param parent
+	 * @param style
+	 */
+	public ZoomingScrollbar(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);
+		//setBackground(SWTResourceManager.getColor(SWT.COLOR_RED));
+
+		ImageButton b1 = new ImageButton(this, SWT.NONE);
+		GridData gd_b1 = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
+		gd_b1.widthHint=14;
+		gd_b1.heightHint=18;
+		b1.setLayoutData(gd_b1);
+		b1.setImage(new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "arrow_left_hover.png"),
+				SWTResourceManager.getImage(this.getClass(), "arrow_left.png"),
+				SWTResourceManager.getImage(this.getClass(), "arrow_left_pressed.png")});
+		b1.addSelectionListener(new SelectionAdapter() {
+			@Override
+			public void widgetSelected(SelectionEvent e) {
+				int[] value = timeSlider.getSelection();
+				int diff = value[1]-value[0];
+				int newLow = Math.max(0, value[0]-Math.max(1,  diff/10));
+				timeSlider.setSelection(newLow, newLow+diff);
+			}
+		});
+		timeSlider = new RangeSlider(this, /*SWT.ON|*/SWT.HIGH|SWT.SMOOTH|SWT.CONTROL);
+		GridData gd_timeSlide = new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1);
+		timeSlider.setLayoutData(gd_timeSlide);
+
+		ImageButton b2 = new ImageButton(this, SWT.NONE);
+		GridData gd_b2 = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
+		gd_b2.widthHint=18;
+		gd_b2.heightHint=18;
+		b2.setLayoutData(gd_b2);
+		b2.setImage(new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "arrow_right_hover.png"),
+				SWTResourceManager.getImage(this.getClass(), "arrow_right.png"),
+				SWTResourceManager.getImage(this.getClass(), "arrow_right_pressed.png")});
+		b2.addSelectionListener(new SelectionAdapter() {
+			@Override
+			public void widgetSelected(SelectionEvent e) {
+				int[] value = timeSlider.getSelection();
+				int diff = value[1]-value[0];
+				int newHigh = Math.min(timeSlider.getMaximum(), value[1] + diff/10);
+				timeSlider.setSelection(newHigh-diff, newHigh);
+			}
+		});
+
+	}
+	@Override
+	public void setSelection(int i) {
+		timeSlider.setLowerValue(i);
+	}
+	@Override
+	public int getSelection() {
+		return timeSlider.getLowerValue();
+	}
+	@Override
+	public void addSelectionListener(SelectionListener selectionListener) {
+		timeSlider.addSelectionListener(selectionListener);	
+	}
+	@Override
+	public void setIncrement(int value) {
+		timeSlider.setIncrement(value);	
+	}
+	@Override
+	public void setPageIncrement(int value) {
+		timeSlider.setPageIncrement(value);	
+	}
+	@Override
+	public void setMinimum(int value) {
+		timeSlider.setMinimum(value);	
+	}
+	@Override
+	public void setMaximum(int value) {
+		timeSlider.setMaximum(value);	
+	}
+	@Override
+	public int getMaximum() {
+		return timeSlider.getMaximum();
+	}
+	@Override
+	public void setThumb(int w) {
+		timeSlider.setUpperValue(timeSlider.getLowerValue()+w);
+	}
+}