public static void OnScrollOnNewItemChanged(
DependencyObject d,
DependencyPropertyChangedEventArgs e)
{
var listBox = d as ListBox;
if (listBox == null)
{
return;
}
bool oldValue = (bool)e.OldValue, newValue = (bool)e.NewValue;
if (newValue == oldValue)
{
return;
}
if (newValue)
{
listBox.Loaded += ListBox_Loaded;
listBox.Unloaded += ListBox_Unloaded;
var itemsSourcePropertyDescriptor = TypeDescriptor.GetProperties(listBox)["ItemsSource"];
itemsSourcePropertyDescriptor.AddValueChanged(listBox, ListBox_ItemsSourceChanged);
}
else
{
listBox.Loaded -= ListBox_Loaded;
listBox.Unloaded -= ListBox_Unloaded;
if (Associations.ContainsKey(listBox))
{
Associations[listBox].Dispose();
}
var itemsSourcePropertyDescriptor = TypeDescriptor.GetProperties(listBox)["ItemsSource"];
itemsSourcePropertyDescriptor.RemoveValueChanged(listBox, ListBox_ItemsSourceChanged);
}
}
/// <summary>
/// Ассоциация расширений с редактором
/// </summary>
/// <param name="exts">Массив расширений</param>
/// <param name="editor">Тип редактора, которым эти файлы открывать</param>
public static void Register(string[] exts, Type editor)
{
if (exts != null)
{
if (Associations == null)
{
Associations = new Dictionary <string, Type>();
}
foreach (string ext in exts)
{
if (!Associations.ContainsKey(ext))
{
Associations.Add(ext, editor);
}
}
}
}
/// <summary>
/// Создание из файла
/// </summary>
/// <param name="file">Путь до файла</param>
public static Editor Create(string file)
{
string ext = System.IO.Path.GetExtension(file).ToLower();
if (Associations != null)
{
if (Associations.ContainsKey(ext))
{
// Создание редактора
Type t = Associations[ext];
Editor e = Activator.CreateInstance(t) as Editor;
e.FileName = file;
e.CreateAssocForm();
e.Load();
return(e);
}
}
return(null);
}
