add next increment - basically working

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

@@ -84,6 +84,8 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 
 	private TimeZoomScrollbar horizontal;
 
+	private int[] lastHorSelection;
+	
 	private ScrollBar vertical;
 
 	HashMap<IWaveform, IWaveformPainter> wave2painterMap;
@@ -156,10 +158,10 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 
 	public void setOrigin(int x, int y) {
 		checkWidget();
-		if(x<=0) horizontal.setSelection(-x);
-		x = -horizontal.getSelection()[0];
-		if(y<=0) vertical.setSelection(-y);
-		y = -vertical.getSelection();
+//		if(x<=0) horizontal.setSelection(-x);
+//		x = -horizontal.getSelection()[0];
+//		if(y<=0) vertical.setSelection(-y);
+//		y = -vertical.getSelection();
 		origin.x = x;
 		origin.y = y;
 		syncSb();
@@ -300,18 +302,24 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 			public void widgetSelected(SelectionEvent event) {
 				if (!painterList.isEmpty()) {
 					int[] sel = horizontal.getSelection();
-					//long width = maxTime / getScale();
-					int currentThumbWidth = getClientArea().width;
-					int newThumbWidth = sel[1]-sel[0];
-					if(currentThumbWidth!=newThumbWidth) {						
-						long newScaleFactor =getScale()*newThumbWidth/currentThumbWidth;					
-						updateScaleFactor(Math.max(1, newScaleFactor));
+					long lowerTime = sel[0]*maxTime/horizontal.getMaximum();
+					long upperTime = sel[1]*maxTime/horizontal.getMaximum();
+					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());
+						event.widget.getDisplay().asyncExec(() -> {redraw();});
 					}
-					origin.x=-sel[0];
-					syncSb();
+					lastHorSelection=sel;
 				}
 			}
 		});
+		horizontal.setMinimum(0);
+		horizontal.setMaximum(10000);
+		lastHorSelection = horizontal.getSelection();
+		
 		vertical.setEnabled(false);
 		vertical.setVisible(true);
 		vertical.addSelectionListener(new SelectionAdapter() {
@@ -319,7 +327,8 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 			public void widgetSelected(SelectionEvent event) {
 				if (!painterList.isEmpty()) {
 					origin.y=-vertical.getSelection();
-					syncSb();
+					fireSelectionEvent();
+					event.widget.getDisplay().asyncExec(() -> {redraw();});
 				}
 			}
 		});
@@ -363,16 +372,15 @@ public class WaveformCanvas extends Canvas implements IWaveformZoom{
 	private void syncHSb() {
 		horizontal.setEnabled(wave2painterMap.size()>0);
 		Rectangle clientArea=getClientArea();
-		long width = maxTime / getScale();
 		int clientWidth = clientArea.width;
-		horizontal.setIncrement(clientWidth / 100);
-		horizontal.setPageIncrement(clientWidth/2);
-		horizontal.setMinimum(0);
-		horizontal.setMaximum((int)width);
-		if (width>0 && -origin.x > horizontal.getMaximum() - clientWidth) {
-			origin.x = -horizontal.getMaximum() + clientWidth;
+		if(maxTime>0) {
+			int lower = (int) (            -origin.x  * getScale() * horizontal.getMaximum() / maxTime);
+			int upper = (int) ((clientWidth-origin.x) * getScale() * horizontal.getMaximum() / maxTime);
+			int[] curSel = horizontal.getSelection();
+			lastHorSelection = new int[] {Math.max(lower,0), Math.min(upper, horizontal.getMaximum())};
+			horizontal.setSelection(lastHorSelection);
 		}
-		horizontal.setSelection(new int[] {Math.max(-origin.x,0), Math.min(clientWidth-origin.x, horizontal.getMaximum())});
+		long width = maxTime / getScale();
 		horizontal.setButtonsEnabled(width > clientWidth);
 	}
 

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

@@ -267,10 +267,23 @@ 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:

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

@@ -2,6 +2,9 @@ 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;
@@ -46,24 +49,36 @@ public class ImageButton extends Composite
 		addListener(SWT.Paint, event -> {
 			paintControl(event);
 		});
-		addListener(SWT.MouseDown, event -> {
-			if(!isEnabled()) return;
+		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();
-		});
-		addListener(SWT.MouseUp, event -> {
+				}
+			}
+
+			@Override
+			public void mouseUp(MouseEvent e) {
 				pressed=false;
 				redraw();
-		});
-		addListener(SWT.MouseMove, event -> {
-			if(!isEnabled()) return;
-			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();
+			}
 		});
 	}
 

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

@@ -64,18 +64,18 @@ public class TimeZoomScrollbar extends Composite {
 			@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, true);
+				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 diff = value[1]-value[0];
-				int newHigh = Math.min(timeSlider.getMaximum(), value[1] + diff/10);
-				timeSlider.setSelection(newHigh-diff, newHigh, true);
+				int incr=timeSlider.getIncrement();
+				int upper = Math.min(timeSlider.getMaximum(), value[1]+incr);
+				timeSlider.setValues(upper - (value[1]-value[0]), upper, true);
 			}
 		});
 
@@ -104,7 +104,7 @@ public class TimeZoomScrollbar extends Composite {
 	}
 	public void setSelection(int[] sel) {
 		assert(sel.length==2);
-		timeSlider.setSelection(sel[0], sel[1]);
+		timeSlider.setValues(sel[0], sel[1]);
 	}
 	public int[] getSelection() {
 		return timeSlider.getSelection();
@@ -112,12 +112,6 @@ public class TimeZoomScrollbar extends Composite {
 	public void addSelectionListener(SelectionListener selectionListener) {
 		timeSlider.addSelectionListener(selectionListener);	
 	}
-	public void setIncrement(int value) {
-		timeSlider.setIncrement(value);	
-	}
-	public void setPageIncrement(int value) {
-		timeSlider.setPageIncrement(value);	
-	}
 	public void setMinimum(int value) {
 		timeSlider.setMinimum(value);	
 	}

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();
 	}