29-12-2015 15:18:25 C# / WPF 0 Bookmark(s) 245 View(s)

 

public void UpdateStylesByScreenResolution(double resolutionChangeFactor)

  {
        ResourceDictionary[] dicArray = new ResourceDictionary[Application.Current.Resources.MergedDictionaries.Count];
        Application.Current.Resources.MergedDictionaries.CopyTo(dicArray, 0);

        foreach (ResourceDictionary oldResourceDic in dicArray)
        {
            ResourceDictionary newResourceDic = new ResourceDictionary();
            newResourceDic.Source = oldResourceDic.Source;

            IList<SetterBaseCollection> setterCollectionList = newResourceDic.OfType<DictionaryEntry>().Select(row => row.Value).OfType<Style>().Select(row => row.Setters).ToList();

            foreach (SetterBaseCollection setterCollection in setterCollectionList)
            {
                IList<Setter> setterList = setterCollection.Select(row => (Setter)row).Where(row => row.Value != null && (row.Value.GetType() == typeof(double) || row.Value.GetType() == typeof(Thickness))).ToList();

                foreach (Setter setter in setterList)
                {
                    if (setter.Value.GetType() == typeof(double))
                    {
                        setter.Value = Convert.ToDouble(Convert.ToDouble(setter.Value) * resolutionChangeFactor);
                    }
                    else if (setter.Value.GetType() == typeof(Thickness))
                    {
                        Thickness thickness = (Thickness)setter.Value;
                        thickness.Left = thickness.Left * resolutionChangeFactor;
                        thickness.Top = thickness.Top * resolutionChangeFactor;
                        thickness.Right = thickness.Right * resolutionChangeFactor;
                        thickness.Bottom = thickness.Bottom * resolutionChangeFactor;
                        setter.Value = thickness;
                    }
                }
            }

            Application.Current.Resources.MergedDictionaries.Remove(oldResourceDic);
            Application.Current.Resources.MergedDictionaries.Add(newResourceDic);
        }
    }