// -- Event handlers -- //
#region EventHandlers
/// <summary>
/// Triggered when the file picker button is clicked
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void UIButtonFilePick_Click(object sender, RoutedEventArgs e)
{
// Pick image file
var imageFile = await GetFilePickedAsync();
if (imageFile == null)
{
return;
}
UIResultPanel.Items.Clear();
// Disable UI
UISkillTabs.IsEnabled = false;
NotifyUser("", NotifyType.ClearMessage);
// Start our stopwatch to measure the time it takes to process all of this
m_perfWatch.Restart();
// Take a lock for using the binding
await m_bindingLock.WaitAsync();
// Display a staging content in our UI
m_currentSkillControl = SkillControl.CreateControl(m_currentSkillWrapper.Binding);
UIResultPanel.Items.Add(m_currentSkillControl);
m_currentSkillControl.RunButtonClicked += SkillControl_RunButtonClicked;
// Start a task that will Load the frame, display it in the UI, bind it and schedule
// execution of the skill against that binding
// (fire and forget)
var bindingTask = Task.Run(async() =>
{
// Execute concept tag skill
try
{
// Load the VideoFrame from the image file
var frame = await LoadVideoFrameFromFileAsync(imageFile);
if (frame == null)
{
throw new Exception($"Error reading image file: {imageFile.Path}");
}
var baseTime = (float)m_perfWatch.ElapsedTicks / Stopwatch.Frequency * 1000f;
// Bind input image
await m_currentSkillWrapper.Binding["InputImage"].SetFeatureValueAsync(frame);
// Display image
await UIResultPanel.Dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
async() =>
{
await m_currentSkillControl.UpdateSkillControlInputImageAsync(frame.SoftwareBitmap);
});
// Record bind time for display
m_currentSkillControl.BindTime = (float)m_perfWatch.ElapsedTicks / Stopwatch.Frequency * 1000f - baseTime;
}
catch (Exception ex)
{
NotifyUser(ex.Message, NotifyType.ErrorMessage);
}
m_bindingLock.Release();
// Enable UI
await Dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
() =>
{
UISkillTabs.IsEnabled = true;
UIButtonFilePick.IsEnabled = true;
});
});
}
