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Fixed ZoomFit

This commit is contained in:
Brita Keller 2018-09-10 20:39:20 +02:00
parent 0833bca1bd
commit 23131e7527
2 changed files with 40 additions and 2 deletions
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2
com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/swt/internal/WaveformCanvas.java
View File

@ -56,7 +56,7 @@ public class WaveformCanvas extends Canvas {
private int level = 12;
public final static String[] unitString={"fs", "ps", "ns", "µs", "ms"};//, "s"};
public final static String[] unitString={"fs", "ps", "ns", "µs", "ms"};//, "s"};
public final static int[] unitMultiplier={1, 3, 10, 30, 100, 300};

40
com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java
View File

@ -17,6 +17,7 @@ import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
@ -55,8 +56,11 @@ import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import com.minres.scviewer.database.ITx;
@ -79,6 +83,7 @@ import com.minres.scviewer.e4.application.internal.util.IFileChangeListener;
import com.minres.scviewer.e4.application.internal.util.IModificationChecker;
import com.minres.scviewer.e4.application.preferences.DefaultValuesInitializer;
import com.minres.scviewer.e4.application.preferences.PreferenceConstants;
//import com.minres.scviewer.database.swt.internal.WaveformCanvas;
/**
* The Class WaveformViewerPart.
@ -724,6 +729,7 @@ public class WaveformViewer implements IFileChangeListener, IPreferenceChangeLis
* @param level the new zoom level
*/
public void setZoomLevel(Integer level) {
//System.out.println("setZoomLevel() - ZoomLevel: " + level);
if (level < 0)
level = 0;
if (level > zoomLevel.length - 1)
@ -732,11 +738,43 @@ public class WaveformViewer implements IFileChangeListener, IPreferenceChangeLis
updateAll();
}
//FIXME: need to use unitString and unitMultiplier from class WaveformCanvas which is located in >com.minres.scviewer.database.swt.internal.
//Trying to import com.minres.scviewer.database.swt.internal.WaveformCanvas results in the error:
//'Access restriction: The type 'WaveformCanvas' is not API (restriction on required project 'com.minres.scviewer.database.ui.swt')'.
public final static String[] unitString={"fs", "ps", "ns", "µs", "ms"};//, "s"};
public final static int[] unitMultiplier={1, 3, 10, 30, 100, 300};
/**
* Sets the zoom fit.
*/
public void setZoomFit() {
waveformPane.setZoomLevel(6);
//actual max time of signal
long maxTime = waveformPane.getMaxTime();
//get area actually capable of displaying data, i.e. area of the receiver which is capable of displaying data
Rectangle clientArea = myParent.getClientArea();
long clientAreaWidth = clientArea.width;
//System.out.println("ZoomLevel[] Array (Length " + zoomLevel.length + "): " + Arrays.toString(zoomLevel));
//System.out.println("ClientArea myParent: " + myParent.getClientArea());
//System.out.println("MaxTime: " + maxTime);
//System.out.println("clientAreaWidth: " + clientAreaWidth);
boolean foundZoom=false;
//try to find existing zoomlevel where scaleFactor*clientAreaWidth >= maxTime, if one is found set it as new zoomlevel
for (int level=0; level<unitMultiplier.length*unitString.length; level++){
long scaleFactor = (long) Math.pow(10, level/2);
if(level%2==1) scaleFactor*=3;
if(scaleFactor*clientAreaWidth >= maxTime) {
setZoomLevel(level);
foundZoom=true;
break;
}
}
//if no zoom level is found, set biggest one available
if(!foundZoom) setZoomLevel(unitMultiplier.length*unitString.length-1);
updateAll();
}