How to find a ProjectItem by the file name

Question

I'm developing a custom tool for the Visual Studio. The tool is assigned to the file, at the time when the file changed I receive name of this file and should generate some changes in the project. I need to find a ProjectItem by the received file name. I have found only one solution it's enumerate all project items in the each project of the solution. But it seems to be huge solution. Is there a way to get a project item by the file name without enumeration?

This is my implementation of the Generate method of the IVsSingleFileGenerator

public int Generate(string sourceFilePath, string sourceFileContent, string defaultNamespace, IntPtr[] outputFileContents, out uint output, IVsGeneratorProgress generateProgress)
{
    var dte = (EnvDTE.DTE)Package.GetGlobalService(typeof(EnvDTE.DTE));

    ProjectItem projectItem = null;

    foreach (Project project in dte.Solution.Projects)
    {
        foreach (ProjectItem item in project.ProjectItems)
        {
            var path = item.Properties.Item("FullPath").Value;
            if (sourceFilePath.Equals(path, StringComparison.OrdinalIgnoreCase))
            {
                projectItem = item;
            }
        }               
    }

    output = 0;
    outputFileContents[0] = IntPtr.Zero;

    return Microsoft.VisualStudio.VSConstants.S_OK;
}

Answer 1

May be a little late but use DTE2.Solution.FindProjectItem(fullPathofChangedFile);