/// <summary>
/// 将命令转为插件
/// </summary>
/// <param name="cmd">通过反射获取的功能命令</param>
/// <param name="appPath">插件所属应用软件的位置，插件的命令位置将设置为对于应用程序的相对路径</param>
/// <returns></returns>
public static PluginItem FromCommand(ICommand cmd, string appPath)
{
var type = cmd.GetType();
var assemblyPath = FileOpt.GetRelativePath(type.Assembly.Location, appPath);
return(new PluginItem
{
Id = Guid.NewGuid().ToString(),
Name = cmd.Name,
Text = cmd.Text,
AssemblyPath = assemblyPath,
TypeName = type.FullName,
Tips = cmd.Description,
Visible = true,
InvokType = EPluginInvokeType.OnClick,
Command = cmd,
});
}
private void TreeViewMenus_DragDrop(object sender, DragEventArgs e)//在完成拖放操作时
{
var targeTreeView = (TreeView)sender;
var sourceNode = (TreeNode)e.Data.GetData(typeof(TreeNode));//获得拖动过来的节点
if (sourceNode == null)
{
return;
}
var point = targeTreeView.PointToClient(new Point {
X = e.X, Y = e.Y
});
var targetNode = targeTreeView.GetNodeAt(point);//根据鼠标坐标获得目标节点
if (targetNode == null)
{
return;
}
var tag = sourceNode.Tag;
var pluginItem = tag is ICommand cmd?PluginItem.FromCommand(cmd, PluginDir) : tag as PluginItem;
//特殊处理：由于Assembly.LoadFrom方法反射程序集A会被缓存，
//随后再反射同名但路径不同的程序集B，因缓存原因实际反射的仍是程序集A的奇葩机制，目前未找到解决方案，此处只能强行替代程序集的路径
pluginItem.AssemblyPath = Path.Combine(PluginDir, Path.GetFileName(pluginItem.AssemblyPath));
pluginItem.AssemblyPath = FileOpt.GetRelativePath(pluginItem.AssemblyPath, PluginDir);
var insertNode = pluginItem.CreateNode(4);
AppendToMenu(targetNode, insertNode);
if (sourceNode.TreeView == targeTreeView)
{
sourceNode.Remove();
}
targeTreeView.SelectedNode = insertNode;
}