Hi Xavier,
I'm a bit confused, is this for the TimeChartView from the framework, or a
modified one you use? Because the Time Chart view already does show
bookmarks as a little banner above the corresponding events (see the code
in TimeChartView$DecorateThread).
It also doesn't have a getExperiment() method? We usually work on generic
ITmfTrace which may or may not be an experiment.
A view or widget should know which trace(s) it's currently handling.
Getting the bookmarks file is a bit tricky because of CTF traces whose
resource is a folder (and you can't open a bookmark from a folder
resource). There's a bug 409542 which if ever resolved, might make finding
the bookmarks file easier...
As for the code above, if you have access to the TimeGraphViewer, there's a
public helper method now which could help: getXForTime().
Patrick
On Fri, Oct 25, 2013 at 11:30 AM, Xavier Raynaud
<xavier.rayn...@kalray.eu>wrote:
> Hi Alexandre,
>
> Following our discussions at #linuxcon, please find hereafter the code I
> wrote to draw bookmarks on TMF timegraphs.
> I just override TimeGraphPresentationProvider.postDrawControl() method.
>
> However, this I also need to know the current experiment when this method
> is called, I've added a field in the TimeGraphPresentation provider.
>
> Perhaps there is a better way to do that ? Perhaps using
> TmfTraceManager.getCurrentTrace() ?
> Where is the best place to contribute this code ? Directly in
> TimeGraphPresentationProvider ?
>
> Xavier Raynaud
>
> ------------------------------
>
> public abstract class KTimeGraphProvider extends
> TimeGraphPresentationProvider {
>
> private TimeChartView fTimeChartView;
>
> public KTimeGraphProvider(TimeChartView tgv) {
> super();
> this.fTimeChartView = tgv;
> }
>
> abstract protected void postDrawEventImpl(IModelTimeEvent
> currentEvent, Rectangle rect, GC gc);
>
> private void drawBookmarks(Rectangle bounds, GC gc) {
> if (fTimeChartView != null) {
> TmfExperiment experiment = fTimeChartView.getExperiment();
> TimeGraphViewer timeGraphViewer =
> fTimeChartView.getTimeGraphViewer();
> if (experiment != null && timeGraphViewer != null) {
> int nameSpace = timeGraphViewer.getNameSpace();
> long time0 = timeGraphViewer.getTime0();
> long time1 = timeGraphViewer.getTime1();
> try {
> for (IMarker bookmark :
> experiment.getBookmarksFile().findMarkers(IMarker.BOOKMARK, false,
> IResource.DEPTH_ZERO)) {
> int location =
> bookmark.getAttribute(IMarker.LOCATION, -1);
> if (location != -1) {
> long rank = location;
> ITmfContext context =
> experiment.seekEvent(rank);
> ITmfEvent ev = experiment.getNext(context);
> context.dispose();
> if (ev != null) {
> ITmfTimestamp ts = ev.getTimestamp();
> long selectedTime = ts.normalize(0,
> -9).getValue();
> double pixelsPerNanoSec = (bounds.width -
> nameSpace <= TimeGraphBaseControl.RIGHT_MARGIN) ? 0
> : (double) (bounds.width -
> nameSpace - TimeGraphBaseControl.RIGHT_MARGIN)
> / (time1 - time0);
> int x = bounds.x + nameSpace + (int)
> ((selectedTime - time0) * pixelsPerNanoSec);
> if (x >= nameSpace && x < bounds.x +
> bounds.width) {
>
> gc.setForeground(PlatformUI.getWorkbench().getDisplay()
>
> .getSystemColor(SWT.COLOR_BLACK));
> gc.drawLine(x, bounds.y, x, bounds.y +
> bounds.height);
> }
> }
> }
> }
> } catch (CoreException e) {
> Activator.getDefault().getLog().log(e.getStatus());
> }
> }
> }
> }
>
> /*
> * (non-Javadoc)
> * @see
> *
> org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphPresentationProvider#postDrawControl(org.eclipse.swt
> * .graphics.Rectangle, org.eclipse.swt.graphics.GC)
> */
> @Override
> public void postDrawControl(Rectangle bounds, GC gc) {
> super.postDrawControl(bounds, gc);
> drawBookmarks(bounds, gc);
> }
> }
>
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> linuxtools-dev@eclipse.org
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>
>
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