public void SetImageSource(ImageSource image, bool animateOpacity)
{
if (image != null && Brush.ImageSource == null)
{
if (animateOpacity)
{
var bitmap = image as BitmapSource;
if (bitmap != null && !bitmap.IsFrozen && bitmap.IsDownloading)
{
bitmap.DownloadCompleted += BitmapDownloadCompleted;
bitmap.DownloadFailed += BitmapDownloadFailed;
}
else
{
Brush.BeginAnimation(ImageBrush.OpacityProperty, new DoubleAnimation(1d, AnimationDuration));
}
}
else
{
Brush.Opacity = 1d;
}
}
Brush.ImageSource = image;
HasImageSource = true;
}
public static void AnimateImageSourceChange(this Brush background, ImageBrush newImage,
Action <ImageBrush> onChangeImage, AnimateImageChangeParams animateImageChangeParams = null)
{
var animationParameters = animateImageChangeParams ?? new AnimateImageChangeParams();
if (background != null)
{
var fadeOutAnimation = new DoubleAnimation(0d, animationParameters.FadeTime)
{
AutoReverse = false
};
var fadeInAnimation =
new DoubleAnimation(0d, animationParameters.TargetOpacity, animationParameters.FadeTime)
{
AutoReverse = false
};
fadeOutAnimation.Completed += (o, e) =>
{
newImage.Opacity = 0d;
onChangeImage(newImage);
background.Opacity = animationParameters.TargetOpacity;
newImage.BeginAnimation(Brush.OpacityProperty, fadeInAnimation);
};
background.BeginAnimation(Brush.OpacityProperty, fadeOutAnimation);
}
else
{
newImage.Opacity = animateImageChangeParams.TargetOpacity;
onChangeImage(newImage);
}
}
/// <summary>
/// Animation fade in for the background of the grid container
/// </summary>
/// <param name="brush"></param>
private void AnimateBackgroundFadeIn(ref ImageBrush brush)
{
if (!Container.Background.Equals(brush))
{
daFadeIn.From = 0;
daFadeIn.To = 0.5;
daFadeIn.Duration = new Duration(TimeSpan.FromSeconds(2));
Container.Background = brush;
brush.BeginAnimation(ImageBrush.OpacityProperty, daFadeIn);
}
}
private void StartKenBurnsAnimation(Shape elementFadeIn)
{
ImageBrush brush = (ImageBrush)elementFadeIn.Fill;
RectAnimation rectAnimation = new RectAnimation();
rectAnimation.From = _randomRects[_index];
rectAnimation.To = _randomRects[_index + 1];
rectAnimation.Duration = new Duration(TimeSpan.FromSeconds(30));
rectAnimation.AutoReverse = true;
rectAnimation.RepeatBehavior = RepeatBehavior.Forever;
Timeline.SetDesiredFrameRate(rectAnimation, 20);
brush.BeginAnimation(TileBrush.ViewboxProperty, rectAnimation);
}
private void IconGrid_Loaded(object sender, RoutedEventArgs e)
{
for (var i = 0; i < ColumnCount; i++)
{
ColumnDefinition columnDefinition = new ColumnDefinition();
columnDefinition.Width = new GridLength(100.0 / ColumnCount, GridUnitType.Star);
MainGrid.ColumnDefinitions.Add(columnDefinition);
}
for (var i = 0; i < RowCount; i++)
{
RowDefinition rowDefinition = new RowDefinition();
rowDefinition.Height = new GridLength(100.0 / RowCount, GridUnitType.Star);
MainGrid.RowDefinitions.Add(rowDefinition);
}
for (var i = 0; i < IconNames.Count; i++)
{
ImageBrush icon = FindResource(IconNames[i]) as ImageBrush;
DoubleAnimation fade = new DoubleAnimation(1.0, TimeSpan.FromSeconds(0.1));
fade.BeginTime = TimeSpan.FromSeconds(0.20 + i * 0.05);
icon.BeginAnimation(ImageBrush.OpacityProperty, fade);
Rectangle box = new Rectangle()
{
Stroke = Brushes.White, StrokeThickness = 2, Opacity = 0.0,
Width = IconWidth, Height = IconHeight, Fill = icon, Name = IconNames[i]
};
box.Margin = new Thickness(0, GrowthAmount, 0, GrowthAmount);
DoubleAnimation appear = new DoubleAnimation(1.0, TimeSpan.FromSeconds(0.05));
appear.BeginTime = TimeSpan.FromSeconds(i * 0.05);
box.BeginAnimation(Rectangle.OpacityProperty, appear);
box.MouseEnter += Box_MouseEnter;
box.MouseLeave += Box_MouseLeave;
box.MouseLeftButtonDown += Box_MouseLeftButtonDown;
Grid.SetRow(box, i % 2);
Grid.SetColumn(box, i / 2);
MainGrid.Children.Add(box);
}
}
public void Activate()
{
for (var i = 0; i < IconNames.Count; i++)
{
ImageBrush icon = Images[i];
DoubleAnimation fade = new DoubleAnimation(1.0, TimeSpan.FromSeconds(0.1));
fade.BeginTime = TimeSpan.FromSeconds(0.20 + i * 0.05);
icon.BeginAnimation(ImageBrush.OpacityProperty, fade);
Rectangle box = new Rectangle()
{
Stroke = Brushes.White,
StrokeThickness = 2,
Opacity = 0.0,
Width = IconWidth,
Height = IconHeight,
Fill = icon,
Name = IconNames[i]
};
box.Margin = new Thickness(0, _growth, 0, _growth);
DoubleAnimation appear = new DoubleAnimation(1.0, TimeSpan.FromSeconds(0.05));
appear.BeginTime = TimeSpan.FromSeconds(i * 0.05);
box.BeginAnimation(Rectangle.OpacityProperty, appear);
box.MouseEnter += Box_MouseEnter;
box.MouseLeave += Box_MouseLeave;
box.MouseLeftButtonDown += Box_MouseLeftButtonDown;
Grid.SetRow(box, i % 2);
Grid.SetColumn(box, i / 2);
_boxes.Add(box);
}
}