public WatermarkedTextBox()
{
DefaultStyleKey = typeof(WatermarkedTextBox);
_listener = DependencyPropertyChangedListener.Create(this, "Text");
_listener.ValueChanged += OnTextChanged;
}
private void AttachLayerEventHandler(Layer layer)
{
Debug.Assert(layer != null);
if (layer is ILegendSupport)
{
(layer as ILegendSupport).LegendChanged += OnLayerLegendChanged;
}
_layerDisplayNameChangedListener = new DependencyPropertyChangedListener <MapLayerItem>(this, layer, "DisplayName")
{
OnEventAction = (instance, source, eventArgs) => instance.OnLayerPropertyChanged(source, eventArgs)
};
_layerMinScaleChangedListener = new DependencyPropertyChangedListener <MapLayerItem>(this, layer, "MinScale")
{
OnEventAction = (instance, source, eventArgs) => instance.OnLayerPropertyChanged(source, eventArgs)
};
_layerMaxScaleChangedListener = new DependencyPropertyChangedListener <MapLayerItem>(this, layer, "MaxScale")
{
OnEventAction = (instance, source, eventArgs) => instance.OnLayerPropertyChanged(source, eventArgs)
};
_layerIsVisibleChangedListener = new DependencyPropertyChangedListener <MapLayerItem>(this, layer, "IsVisible")
{
OnEventAction = (instance, source, eventArgs) => instance.OnLayerPropertyChanged(source, eventArgs)
};
_layerStatusChangedListener = new DependencyPropertyChangedListener <MapLayerItem>(this, layer, "Status")
{
OnEventAction = (instance, source, eventArgs) => instance.OnLayerPropertyChanged(source, eventArgs)
};
}
private void AttachLayerEventHandler(Layer layer)
{
Debug.Assert(layer != null);
if (layer is ILegendSupport)
(layer as ILegendSupport).LegendChanged += OnLayerLegendChanged;
_layerDisplayNameChangedListener = new DependencyPropertyChangedListener<MapLayerItem>(this, layer, "DisplayName")
{
OnEventAction = (instance, source, eventArgs) => instance.OnLayerPropertyChanged(source, eventArgs)
};
_layerMinScaleChangedListener = new DependencyPropertyChangedListener<MapLayerItem>(this, layer, "MinScale")
{
OnEventAction = (instance, source, eventArgs) => instance.OnLayerPropertyChanged(source, eventArgs)
};
_layerMaxScaleChangedListener = new DependencyPropertyChangedListener<MapLayerItem>(this, layer, "MaxScale")
{
OnEventAction = (instance, source, eventArgs) => instance.OnLayerPropertyChanged(source, eventArgs)
};
_layerIsVisibleChangedListener = new DependencyPropertyChangedListener<MapLayerItem>(this, layer, "IsVisible")
{
OnEventAction = (instance, source, eventArgs) => instance.OnLayerPropertyChanged(source, eventArgs)
};
_layerStatusChangedListener = new DependencyPropertyChangedListener<MapLayerItem>(this, layer, "Status")
{
OnEventAction = (instance, source, eventArgs) => instance.OnLayerPropertyChanged(source, eventArgs)
};
}
public static void addListener <TObject, TProperty>(TObject obj, DependencyProperty <TProperty> property, DependencyObject refHolder, PropertyChangedCallback <TObject, TProperty> callback) where TObject : DependencyObject
{
if (obj == null)
{
throw new ArgumentNullException("obj");
}
if (refHolder == null)
{
throw new ArgumentNullException("refHolder");
}
if (callback == null)
{
throw new ArgumentNullException("callback");
}
Binding binding = new Binding {
Source = obj, Path = new PropertyPath(property), Mode = BindingMode.OneWay
};
DependencyPropertyChangedListener listener = new DependencyPropertyChangedListener(obj, property, (d, e) => callback((TObject)d, e.of <TProperty>()));
BindingOperations.SetBinding(listener, DependencyPropertyChangedListener.ValueProperty, binding);
GetAttachedChangeListeners(refHolder).Add(listener);
}
private static void notifyValueChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
DependencyPropertyChangedListener listener = (DependencyPropertyChangedListener)sender;
listener._callback(listener._source, new DependencyPropertyChangedEventArgs(listener._property, args.OldValue, args.NewValue));
}
