public static XProperty CreateProperty <TThis, TValue>(
string propertyName,
bool affectsMeasure,
Func <TPainter, TValue> defaultValueGet,
Action <TPainter, TValue> propertySet,
Action <TThis, TValue>?updateOtherProperty = null)
where TThis : BaseView <TPainter, TContent>
{
var defaultValue = defaultValueGet(staticPainter);
void PropertyChanged(TThis @this, object?newValue)
{
// We need to support nullable classes and structs, so we cannot forbid null here
// So this use of the null-forgiving operator should be blamed on non-generic PropertyChanged handlers
var @new = (TValue)newValue !;
propertySet(@this.Painter, @new);
updateOtherProperty?.Invoke(@this, @new);
if (affectsMeasure)
{
@this.InvalidateMeasure();
}
// Redraw immediately! No deferred drawing
#if Avalonia
@this.InvalidateVisual();
}
var prop = XProperty.Register <TThis, TValue>(propertyName, defaultValue);
global::Avalonia.AvaloniaObjectExtensions.AddClassHandler <TThis>(prop.Changed, (t, e) => PropertyChanged(t, e.NewValue));
return(prop);
}
public static XProperty CreateProperty <TThis, TValue>(
string propertyName,
bool affectsMeasure,
Func <TPainter, TValue> defaultValueGet,
Action <TPainter, TValue> propertySet,
Action <TThis, TValue>?updateOtherProperty = null)
where TThis : BaseView <TPainter, TContent>
{
var defaultValue = defaultValueGet(staticPainter);
void PropertyChanged(TThis @this, object newValue)
{
propertySet(@this.Painter, (TValue)newValue);
updateOtherProperty?.Invoke(@this, (TValue)newValue);
if (affectsMeasure)
{
@this.InvalidateMeasure();
}
// Redraw immediately! No deferred drawing
#if Avalonia
@this.InvalidateVisual();
}
var prop = XProperty.Register <TThis, TValue>(propertyName, defaultValue);
global::Avalonia.AvaloniaObjectExtensions.AddClassHandler <TThis>(prop.Changed, (t, e) => PropertyChanged(t, e.NewValue));
return(prop);
}