Improve Shell::setBounds scaling on monitor change

This commit contributes to the correct scaling of the Shell using its
own zoom on Shell::setBounds call as the scaling of the shell in case of a monitor
change is also handled by the DPI_CHANGED event.

contributes to #62 and #127

Author: amartya4256

bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Shell.java

@@ -1582,8 +1582,11 @@ public Point getLocation() {
 public void setLocation(Point location) {
 	if (location == null) error (SWT.ERROR_NULL_ARGUMENT);
 	checkWidget ();
-	Point locationInPixels = getDisplay().translateToDisplayCoordinates(location, getZoom());
-	setLocationInPixels(locationInPixels.x, locationInPixels.y);
+	Monitor monitor = location instanceof MonitorAwarePoint monitorAwareLocation ? monitorAwareLocation.getMonitor() : null;
+	Point size = getSize();
+	MonitorAwareRectangle monAwareBounds = new MonitorAwareRectangle(location.x, location.y, size.x, size.y, monitor);
+	Rectangle boundsInPixels = getDisplay().translateToDisplayCoordinates(monAwareBounds, getZoom());
+	setLocationInPixels(boundsInPixels.x, boundsInPixels.y);
 }
 
 @Override
@@ -1596,7 +1599,11 @@ public void setBounds(Rectangle rect) {
 	if (rect == null) error (SWT.ERROR_NULL_ARGUMENT);
 	checkWidget ();
 	Rectangle boundsInPixels = getDisplay().translateToDisplayCoordinates(rect, getZoom());
-	setBoundsInPixels(boundsInPixels.x, boundsInPixels.y, boundsInPixels.width, boundsInPixels.height);
+	// The scaling of the width and height in case of a monitor change is handled by
+	// the WM_DPICHANGED event so we don't need to use the target monitor zoom for
+	// scaling them here.
+	setBoundsInPixels(boundsInPixels.x, boundsInPixels.y, DPIUtil.scaleUp(rect.width, getZoom()),
+			DPIUtil.scaleUp(rect.width, getZoom()));
 }
 
 @Override