public void FadeToBlack()
{
BeeImage.SetShowingImage(null);
if (m_imgOld != null)
{
GridImage.Children.Remove(m_imgOld);
}
m_imgOld = m_imgNew;
m_imgNew = null;
if (m_imgOld != null)
{
m_currentStoryboard = new Storyboard
{
Duration = TimeSpan.FromSeconds(m_fadeSeconds)
};
DoubleAnimation animFadeOut = new DoubleAnimation(0, TimeSpan.FromSeconds(m_fadeSeconds));
Storyboard.SetTarget(animFadeOut, m_imgOld);
Storyboard.SetTargetProperty(animFadeOut, new PropertyPath("Opacity"));
m_currentStoryboard.Children.Add(animFadeOut);
m_currentStoryboard.Begin();
}
}
public double QueueImage(BeeImage bi)
{
BeeImage.SetShowingImage(bi);
if (m_imgOld != null)
{
GridImage.Children.Remove(m_imgOld);
}
m_imgOld = m_imgNew;
m_imgNew = new Image
{
Source = bi.BitmapFrame,
// Start with 0 opacity
Opacity = 0,
Stretch = Stretch.None
};
GridImage.Children.Add(m_imgNew);
DoubleAnimation animFadeIn = new DoubleAnimation(1, TimeSpan.FromSeconds(m_fadeSeconds));
ScaleTransform scaleTransform = new ScaleTransform(1, 1);
m_imgNew.RenderTransformOrigin = new Point(0, 0);
m_imgNew.RenderTransform = scaleTransform;
OffsetScale os1 = bi.GetStartOffsetScale(new BeeRect(0, 0, GridImage.ActualWidth, GridImage.ActualHeight));
OffsetScale os2 = bi.GetEndOffsetScale(new BeeRect(0, 0, GridImage.ActualWidth, GridImage.ActualHeight));
// Let's animate a random amount of time between 0.25 and 1.0 of the configuration value.
double mult = (m_rng.NextDouble() * 0.75) + 0.25;
double panSeconds = mult * m_panSeconds;
TimeSpan tsAnim = TimeSpan.FromSeconds(panSeconds + m_fadeSeconds);
m_currentStoryboard = new Storyboard
{
Duration = tsAnim
};
DoubleAnimation animScaleX = new DoubleAnimation(os1.Scale, os2.Scale, tsAnim);
DoubleAnimation animScaleY = new DoubleAnimation(os1.Scale, os2.Scale, tsAnim);
DoubleAnimation animOffsetX = new DoubleAnimation(-os1.OffsetX, -os2.OffsetX, tsAnim);
DoubleAnimation animOffsetY = new DoubleAnimation(-os1.OffsetY, -os2.OffsetY, tsAnim);
Storyboard.SetTarget(animScaleX, m_imgNew);
Storyboard.SetTargetProperty(animScaleX, new PropertyPath("RenderTransform.ScaleX"));
m_currentStoryboard.Children.Add(animScaleX);
Storyboard.SetTarget(animScaleY, m_imgNew);
Storyboard.SetTargetProperty(animScaleY, new PropertyPath("RenderTransform.ScaleY"));
m_currentStoryboard.Children.Add(animScaleY);
Storyboard.SetTarget(animOffsetX, m_imgNew);
Storyboard.SetTargetProperty(animOffsetX, new PropertyPath("RenderTransform.CenterX"));
m_currentStoryboard.Children.Add(animOffsetX);
Storyboard.SetTarget(animOffsetY, m_imgNew);
Storyboard.SetTargetProperty(animOffsetY, new PropertyPath("RenderTransform.CenterY"));
m_currentStoryboard.Children.Add(animOffsetY);
if (m_imgOld != null)
{
DoubleAnimation animFadeOut = new DoubleAnimation(0, TimeSpan.FromSeconds(m_fadeSeconds));
Storyboard.SetTarget(animFadeOut, m_imgOld);
Storyboard.SetTargetProperty(animFadeOut, new PropertyPath("Opacity"));
m_currentStoryboard.Children.Add(animFadeOut);
}
Storyboard.SetTarget(animFadeIn, m_imgNew);
Storyboard.SetTargetProperty(animFadeIn, new PropertyPath("Opacity"));
m_currentStoryboard.Children.Add(animFadeIn);
m_currentStoryboard.Duration = new Duration(tsAnim);
m_currentStoryboard.Begin();
return(panSeconds);
}