private void OnImageOpened(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
var image = sender as Windows.UI.Xaml.Controls.Image;
var canvas = image.Parent as Windows.UI.Xaml.Controls.Canvas;
// Make the image 75% of the canvas and position it at the center of the canvas
var scale = 0.75 * System.Math.Min(
(canvas.ActualHeight / image.ActualHeight),
(canvas.ActualWidth / image.ActualWidth));
image.RenderTransform = new Windows.UI.Xaml.Media.TransformGroup
{
Children =
{
new Windows.UI.Xaml.Media.TranslateTransform
{
X = (canvas.ActualWidth - image.ActualWidth) / 2,
Y = (canvas.ActualHeight - image.ActualHeight) / 2
},
new Windows.UI.Xaml.Media.ScaleTransform
{
CenterX = canvas.ActualWidth / 2,
CenterY = canvas.ActualHeight / 2,
ScaleX = scale,
ScaleY = scale
},
}
};
this._manipulationManager = new Manipulations.ManipulationManager(image, canvas);
this._manipulationManager.OnFilterManipulation = Manipulations.ManipulationFilter.Clamp;
this._manipulationManager.Configure(true, false, true, true);
}
private void OnImageOpened(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
var image = sender as Windows.UI.Xaml.Controls.Image;
var canvas = image.Parent as Windows.UI.Xaml.Controls.Canvas;
// Make the image 70% of the canvas and position it at the center of the canvas
var scale = 0.7 * System.Math.Min(
(canvas.ActualHeight / image.ActualHeight),
(canvas.ActualWidth / image.ActualWidth));
image.RenderTransform = new Windows.UI.Xaml.Media.TransformGroup
{
Children =
{
new Windows.UI.Xaml.Media.TranslateTransform
{
X = (canvas.ActualWidth - image.ActualWidth) / 2,
Y = (canvas.ActualHeight - image.ActualHeight) / 2
},
new Windows.UI.Xaml.Media.ScaleTransform
{
CenterX = canvas.ActualWidth / 2,
CenterY = canvas.ActualHeight / 2,
ScaleX = scale,
ScaleY = scale
},
}
};
// Create and configure manipulation manager for this image
// leftImage can only be rotated, while rightImage can also be translated
var manManager = new Manipulations.ManipulationManager(image, canvas);
if (image == leftImage)
{
manManager.OnFilterManipulation = Manipulations.ManipulationFilter.RotateAboutCenter;
manManager.Configure(false, true, false, true);
}
else if (image == rightImage)
{
manManager.OnFilterManipulation = Manipulations.ManipulationFilter.ClampCenterOfMass;
manManager.Configure(false, true, true, true);
}
else
{
// Should never happen
throw new System.Exception("RotatePage.OnImageOpened");
}
this._manipulationManager[image] = manManager;
}
