public override FrameworkElement GetControl(DataPreviewPluginArgument arg)
{
PropertyViewControl grid = new PropertyViewControl();
grid.DataContext = arg;
return(grid);
}
/// <summary>
/// 将控件转换为TabItem，便于显示到界面上
/// </summary>
/// <param name="arg"></param>
/// <returns></returns>
public FrameworkElement ToControl(DataPreviewPluginArgument arg)
{
TabItem ti = new TabItem();
if (!string.IsNullOrWhiteSpace(PluginInfo.Icon)) //设置了图标
{
try
{
Image img = new Image();
img.Source = new BitmapImage(new Uri(PluginInfo.Icon, UriKind.RelativeOrAbsolute));
img.Stretch = System.Windows.Media.Stretch.UniformToFill;
img.Width = img.Height = 16;
img.ToolTip = PluginInfo.Name;
ti.Header = img;
}
catch (Exception)
{
}
}
if (ti.Header == null)
{
ti.Header = PluginInfo.Name;
}
ti.Content = GetControl(arg);
return(ti);
}
public override FrameworkElement GetControl(DataPreviewPluginArgument arg)
{
ImageViewControl ctrl = new ImageViewControl();
ctrl.DataContext = arg;
return(ctrl);
}
public override FrameworkElement GetControl(DataPreviewPluginArgument arg)
{
MediaPlayerControl grid = new MediaPlayerControl();
grid.IsAudioFormat = false;
grid.DataContext = arg;
return(grid);
}
/// <summary>
/// 根据当前选择的数据获取视图列表
/// </summary>
/// <param name="pluginId"></param>
/// <param name="type"></param>
/// <returns></returns>
public IEnumerable <AbstractDataPreviewPlugin> GetView(DataPreviewPluginArgument arg)
{
if (arg.CurrentData == null)
{
return(new List <AbstractDataPreviewPlugin>());
}
if (arg.CurrentData is string file) //如果是字符串则认为是文件，此时通过文件后缀名判断
{
if (string.IsNullOrEmpty(file) || !System.IO.File.Exists(file))
{
return(new List <AbstractDataPreviewPlugin>());
}
string ext = System.IO.Path.GetExtension(file);
var views = Plugins.Where(p =>
((DataPreviewPluginInfo)p.PluginInfo).ViewType.Any(v => (v.PluginId == "*.*" || v.PluginId.Replace("*", "").Split('|').Any(e => e.Equals(ext, StringComparison.OrdinalIgnoreCase)))))
.OrderByDescending(iv => iv.PluginInfo.OrderIndex)
.ToList();
return(views);
}
else //否则认为是数据对象，此时通过类型判断
{
if (arg.Type == null || arg.PluginId == null)
{
arg.Type = arg.PluginId = "*";
//return new List<AbstractDataPreviewPlugin>();
}
string typeName = (arg.Type is Type) ? ((Type)arg.Type).Name : arg.Type.ToSafeString();
var views = Plugins.Where(p =>
((DataPreviewPluginInfo)p.PluginInfo).ViewType.Any(v => (v.PluginId.Equals(arg.PluginId) || v.PluginId == "*") && (v.TypeName.Equals(typeName) || v.TypeName == "*")))
.OrderByDescending(iv => iv.PluginInfo.OrderIndex)
.ToList();
return(views);
}
}
/// <summary> /// 获取显示的插件控件 /// </summary> /// <param name="arg"></param> /// <returns></returns> public abstract FrameworkElement GetControl(DataPreviewPluginArgument arg);