public void SnapToFirstRepeatedZoomSnapPoint()
{
Scroller scroller = null;
Rectangle rectangleScrollerContent = null;
AutoResetEvent scrollerLoadedEvent = new AutoResetEvent(false);
RunOnUIThread.Execute(() =>
{
rectangleScrollerContent = new Rectangle();
scroller = new Scroller();
SetupDefaultUI(scroller, rectangleScrollerContent, scrollerLoadedEvent);
});
WaitForEvent("Waiting for Loaded event", scrollerLoadedEvent);
// Jump to absolute zoom factor, and center the content in the viewport.
ZoomTo(scroller,
zoomFactor: 6.0f,
centerPointX: 690.0f,
centerPointY: 340.0f,
AnimationMode.Disabled,
SnapPointsMode.Default);
// Add zoom repeated snap point with different offset and start.
RunOnUIThread.Execute(() =>
{
RepeatedZoomSnapPoint snapPoint = new RepeatedZoomSnapPoint(
offset: 5,
interval: 6,
start: 1,
end: 9);
scroller.ZoomSnapPoints.Add(snapPoint);
});
// Flick with zoom factor velocity to naturally land around factor 1.5.
ZoomFrom(scroller,
zoomFactorVelocity: -5.0f,
inertiaDecayRate: 0.6675f,
centerPointX: 150.0f,
centerPointY: 100.0f,
hookViewChanged: false);
RunOnUIThread.Execute(() =>
{
// ZoomFactor expected to have snapped to first instance of repeated snap point: 5.
// Scroll offsets do not snap and end close to 2850, 1400 for a centered content.
Verify.IsTrue(Math.Abs(scroller.HorizontalOffset - 2850.0) < 1.0);
Verify.IsTrue(Math.Abs(scroller.VerticalOffset - 1400.0) < 1.0);
Verify.AreEqual(5.0f, scroller.ZoomFactor);
});
}
private void BtnMRAddSnapPoint_Click(object sender, RoutedEventArgs e)
{
try
{
double offset = Convert.ToDouble(txtMRSnapPointOffset.Text);
double interval = Convert.ToDouble(txtMRSnapPointInterval.Text);
double start = Convert.ToDouble(txtMRSnapPointStart.Text);
double end = Convert.ToDouble(txtMRSnapPointEnd.Text);
RepeatedZoomSnapPoint newSnapPoint = new RepeatedZoomSnapPoint(offset, interval, start, end);
markupScrollPresenter.ZoomSnapPoints.Add(newSnapPoint);
}
catch (Exception ex)
{
this.fullLogs.Add(ex.ToString());
txtExceptionReport.Text = ex.ToString();
}
}
