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using System.ComponentModel;
using System.Runtime.CompilerServices;
namespace Xamarin.Forms.Controls
{
[Preserve (AllMembers = true)]
internal class MultiBindingHack : INotifyPropertyChanged
{
string _labelWithBounds;
public MultiBindingHack (VisualElement element)
{
LabelWithBounds = string.Format("{{X={0:0.00} Y={1:0.00} Width={2:0.00} Height={3:0.00}}}", element.X, element.Y, element.Width, element.Height);
element.PropertyChanged += (sender, args) => {
if (args.PropertyName == "X" ||
args.PropertyName == "Y" ||
args.PropertyName == "Width" ||
args.PropertyName == "Height" ||
args.PropertyName == "Rotation") {
LabelWithBounds = string.Format("{{X={0:0.00} Y={1:0.00} Width={2:0.00} Height={3:0.00}}}", element.X, element.Y, element.Width, element.Height); // super hack
}
};
}
public string LabelWithBounds
{
get { return _labelWithBounds; }
set
{
if (_labelWithBounds == value)
return;
_labelWithBounds = value;
OnPropertyChanged ();
}
}
public event PropertyChangedEventHandler PropertyChanged;
void OnPropertyChanged ([CallerMemberName] string propertyName = null)
{
PropertyChangedEventHandler handler = PropertyChanged;
if (handler != null)
handler (this, new PropertyChangedEventArgs (propertyName));
}
}
}
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