Example usage for com.google.gwt.coreext.client JsIntegerDoubleMap create

Introduction

In this page you can find the example usage for com.google.gwt.coreext.client JsIntegerDoubleMap create.

Prototype

public static JsIntegerDoubleMap create() 

Source Link

Document

Create a new empty map.

Usage

From source file:com.google.speedtracer.client.visualizations.model.ReportDataCollector.java

License:Apache License

private ReportData gatherDataWithinWindowImpl(double leftBound, double rightBound,
        List<? extends EventRecord> eventList, Collector collector) {
    // Find the index of the last record that falls within the right edge of the
    // selected window bound.
    int numRecords = eventList.size();
    int index = EventRecord.getIndexOfRecord(eventList, rightBound);

    // If we have a bogus insertion index, do nothing.
    if (index <= 0 || index > numRecords) {
        return new ReportData(null, null);
    }/*  w w  w . j  av a2 s  . co  m*/

    // The insertion index is always to the right of the record we want to start
    // with. Unless we hit it directly. But if we hit the start time directly
    // with the right edge of the window, we can ignore anyways. So it is always
    // correct to decrement index by 1.
    index = index - 1;

    // Not all records will be UiEvents. But we want access to fields like
    // duration and the type maps. These will return appropriate 0 and null
    // values for non-UiEvent EventRecords.
    UiEvent record = eventList.get(index).cast();
    final List<HintRecord> hints = new ArrayList<HintRecord>();
    final JsIntegerDoubleMap aggregateTypeDurations = JsIntegerDoubleMap.create();

    // We want to add a wedge in the pie chart for the time the browser's UI
    // thread was available.
    collector.setTotalAvailableTime(rightBound - leftBound);

    // We are starting at the right edge of the window, which may chop an event.
    if (UiEvent.isUiEvent(record)) {
        record = splitEventTreeOnBoundary(record, rightBound, true);
        // Guard against having the record split an event outside the window.
        if (record == null) {
            return new ReportData(null, null);
        }
    }

    // We will walk backward to find the left window boundary. Because we can
    // have ResourceUpdate records that have nonsensical time stamps, we place
    // the terminating condition within the loop.
    while (index >= 0) {
        double endTime = record.getTime() + record.getDuration();
        // Our real terminating condition is if the record passes the left edge.
        if (endTime < leftBound) {
            break;
        }
        // Chop records that fall within the window, but start to the left of
        // the leftBound.
        if (UiEvent.isUiEvent(record) && record.getTime() < leftBound && endTime >= leftBound) {
            record = splitEventTreeOnBoundary(record, leftBound, false);
            assert (record != null) : "Splitting a node should yield a valid non-null clone here!";
        }

        collector.examineRecord(record, aggregateTypeDurations);

        // Walk backward.
        --index;
        if (index >= 0) {
            record = eventList.get(index).cast();
        }
    }

    collector.finishCollection(aggregateTypeDurations, hints);

    return new ReportData(aggregateTypeDurations, hints);
}

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From source file:com.google.speedtracer.client.visualizations.view.EventTraceBreakdown.java

License:Apache License

private void ensureMasterIsRendered() {
    if (masterCanvasElement != null) {
        return;/*ww w.  j  a  v  a 2 s.co  m*/
    }

    // See comment in renderNode.
    final JsIntegerDoubleMap accumlatedErrorByType = JsIntegerDoubleMap.create();
    final Canvas canvas = new Canvas(MASTER_COORD_WIDTH, COORD_HEIGHT);
    traverseAndRender(canvas, null, rootEvent, accumlatedErrorByType);
    masterCanvasElement = canvas.getElement();
}

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