private async void mainImage_ManipulationDelta(object sender, ManipulationDeltaRoutedEventArgs e)
{
//if (e.IsInertial)
{
PagePicture lpCurrent = (PagePicture)mainImage.Items[0];
if (lpCurrent != null)
{
Point currentpoint = e.Position;
if (currentpoint.X - initialpoint.X >= 5 && lpCurrent.Previous != null)//500 is the threshold value, where you want to trigger the swipe right event
{
await LibraryView.PictureImageLoad(lpCurrent.Previous, mainImage);
LibraryView.onPictureChanged(sender, new OnPictureChangedArgs(lpCurrent.Previous, "grid"));
e.Complete();
}
else if (currentpoint.X - initialpoint.X <= -5 && lpCurrent.Next != null)//500 is the threshold value, where you want to trigger the swipe right event
{
await LibraryView.PictureImageLoad(lpCurrent.Next, mainImage);
LibraryView.onPictureChanged(sender, new OnPictureChangedArgs(lpCurrent.Next, "grid"));
e.Complete();
}
}
}
}
private async void mainImage_ManipulationCompleted(object sender, ManipulationCompletedRoutedEventArgs e)
{
if (Math.Abs(e.Velocities.Linear.X) > .1 || Math.Abs(e.Velocities.Linear.Y) > .1)
{
PagePicture lpCurrent = (PagePicture)mainImage.Items[0];
PageFile lpfFile = null;
if (lpCurrent != null)
{
var step = StepSize.small;
var directionUp = true;
if (Math.Abs(e.Velocities.Linear.X) > Math.Abs(e.Velocities.Linear.Y))
{
directionUp = (e.Velocities.Linear.X < 0);
if (Math.Abs(e.Velocities.Linear.X) > 2)
{
step = StepSize.large;
}
}
else
{
directionUp = (e.Velocities.Linear.Y < 0);
if (Math.Abs(e.Velocities.Linear.Y) > 2)
{
step = StepSize.series;
}
else
{
step = StepSize.seriesTag;
}
}
if (directionUp)
{
lpfFile = lpCurrent.StepNext(step);
}
else
{
lpfFile = lpCurrent.StepPrevious(step);
}
if (lpfFile != null)
{
await LibraryView.PictureImageLoad(lpfFile, mainImage);
LibraryView.onPictureChanged(sender, new OnPictureChangedArgs(lpfFile, "grid"));
}
else
{
e.Handled = false;
}
}
}
}
async void gridView_Tapped(object sender, TappedRoutedEventArgs e)
{
{
PagePicture lpCurrent = (PagePicture)mainImage.Items[0];
PageFile lpfFile = null;
var up = false;
if (lpCurrent != null)
{
var position = e.GetPosition(mainImage);
var height3 = mainImage.ActualHeight / 3;
var width2 = mainImage.ActualWidth / 2;
var stepSize = StepSize.small;
if (position.X < 50 || position.X > mainImage.ActualWidth - 75)
{
up = position.X > mainImage.ActualWidth - 75;
if (position.Y < height3)
{
stepSize = StepSize.small;
}
else if (position.Y < 2 * height3)
{
stepSize = StepSize.large;
}
else
{
stepSize = StepSize.seriesTag;
}
}
else if (position.Y < 50 || position.Y > mainImage.ActualHeight - 75)
{
up = position.Y > mainImage.ActualHeight - 75;
stepSize = StepSize.series;
}
else
{
e.Handled = false;
return;
}
if (up)
{
lpfFile = lpCurrent.StepNext(stepSize);
}
else
{
lpfFile = lpCurrent.StepPrevious(stepSize);
}
if (lpfFile != null)
{
await LibraryView.PictureImageLoad(lpfFile, mainImage);
LibraryView.onPictureChanged(sender, new OnPictureChangedArgs(lpfFile, "grid"));
}
else
{
e.Handled = false;
}
}
}
}
