private static void UpdateColor(Xamarin.Forms.BindableObject bindable, object oldColor, object newColor)
{
if (newColor == null || oldColor == null)
{
return;
}
var oldcolor = (Xamarin.Forms.Color)oldColor;
var newcolor = (Xamarin.Forms.Color)newColor;
if (!oldcolor.Equals(newcolor))
{
var view = (CustomCachedImage)bindable;
var transformations = new System.Collections.Generic.List <FFImageLoading.Work.ITransformation>()
{
new FFImageLoading.Transformations.TintTransformation((int)(newcolor.R * 255), (int)(newcolor.G * 255), (int)(newcolor.B * 255), (int)(newcolor.A * 255))
{
EnableSolidColor = true
}
};
view.Transformations = transformations;
}
}
/// <summary>
/// Invoked when the HoldingLocation's value has changed
/// </summary>
private static void OnHoldingLocationControllerChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (e.NewValue is HoldingLocationController)
{
((HoldingLocationController)e.NewValue).SetGeoView(d as GeoView);
}
}
/// <summary>
/// Invoked when the ViewPoint value has changed
/// </summary>
private async static void OnViewpointChanged(DependencyObject bindable, DependencyPropertyChangedEventArgs e)
{
if (e.NewValue is Viewpoint && !(bindable as ViewpointController)._isGeoViewViewpointChangedEventFiring)
{
(bindable as ViewpointController)._isOnViewpointChangedExecuting = true;
await(bindable as ViewpointController)?.GeoView?.SetViewpointAsync((Viewpoint)e.NewValue);
(bindable as ViewpointController)._isOnViewpointChangedExecuting = false;
}
}
/// <summary>
/// ViewpointControllerCollection getter method
/// </summary>
public static ViewpointControllerCollection GetViewpointControllerCollection(DependencyObject geoView)
{
var viewpointControllerCollection = (geoView as GeoView).GetValue(ViewpointControllerCollectionProperty) as ViewpointControllerCollection;
if (viewpointControllerCollection == null)
{
viewpointControllerCollection = new ViewpointControllerCollection();
SetViewpointControllerCollection(geoView, viewpointControllerCollection);
}
return(viewpointControllerCollection);
}
/// <summary>
/// Invoked when the ViewpointControllerCollection's value has changed
/// </summary>
private static void OnViewpointControllerCollectionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (e.NewValue is ViewpointControllerCollection collection)
{
// Set the initial items in the collection
foreach (ViewpointController item in collection)
{
item.SetGeoView(d as GeoView);
}
// Listen for collection changed, and set the geoview for those new items
collection.CollectionChanged += (sender, args) =>
{
foreach (ViewpointController item in args.NewItems)
{
item.SetGeoView(d as GeoView);
}
};
}
}
/// <summary>
/// ViewpointControllerCollection setter method
/// </summary>
public static void SetViewpointControllerCollection(DependencyObject geoView, ViewpointControllerCollection ViewpointControllerCollection)
{
(geoView as GeoView)?.SetValue(ViewpointControllerCollectionProperty, ViewpointControllerCollection);
}
/// <summary>
/// HoldingLocationController setter method
/// </summary>
public static void SetHoldingLocationController(DependencyObject geoView, HoldingLocationController HoldingLocationController)
{
(geoView as GeoView)?.SetValue(HoldingLocationControllerProperty, HoldingLocationController);
}
/// <summary>
/// HoldingLocationController getter method
/// </summary>
public static HoldingLocationController GetHoldingLocationController(DependencyObject geoView)
{
return((geoView as GeoView)?.GetValue(HoldingLocationControllerProperty) as HoldingLocationController);
}
