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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
using System;
using System.IO;
using System.Threading;
using EnvDTE;
using Microsoft.VisualStudio.Shell;
using Microsoft.Win32;
using Tasks = System.Threading.Tasks;
namespace QtVsTools.Core
{
using Common;
using VisualStudio;
public static class NatvisHelper
{
private static Tasks.Task _initTask;
private static string _visualizersPath;
public static void CopyVisualizersFiles(string qtNamespace = null)
{
if (string.IsNullOrEmpty(qtNamespace))
return;
ThreadHelper.JoinableTaskFactory.Run(async () =>
await CopyVisualizersFilesAsync(qtNamespace));
}
public static async Tasks.Task CopyVisualizersFilesAsync(string qtNamespace = null)
{
string[] files = {
"QtMSBuild\\vs-debugtools\\natvis\\qt5.natvis",
"QtMSBuild\\vs-debugtools\\natvis\\qt6.natvis"
};
foreach (var file in files)
await CopyVisualizersFileAsync(file, qtNamespace);
}
private static async Tasks.Task CopyVisualizersFileAsync(string filename, string qtNamespace)
{
await EnsureVisualizersPathInitializedAsync();
try {
string visualizerFile;
var text = await Utils.ReadAllTextAsync(Path.Combine(Utils.PackageInstallPath,
filename));
if (string.IsNullOrEmpty(qtNamespace)) {
text = text.Replace("##NAMESPACE##::", string.Empty);
visualizerFile = Path.GetFileName(filename);
} else {
text = text.Replace("##NAMESPACE##", qtNamespace);
visualizerFile = filename.Substring(0, filename.IndexOf('.'))
+ $"_{qtNamespace.Replace("::", "_")}.natvis";
}
if (!Directory.Exists(_visualizersPath))
Directory.CreateDirectory(_visualizersPath);
await Utils.WriteAllTextAsync(Path.Combine(_visualizersPath, visualizerFile), text);
} catch (Exception exception) {
exception.Log();
}
}
private static async Tasks.Task EnsureVisualizersPathInitializedAsync()
{
if (!string.IsNullOrEmpty(_visualizersPath))
return;
var initTask = _initTask;
if (initTask == null) {
var task = InitializeVisualizersPathAsync();
initTask = Interlocked.CompareExchange(ref _initTask, task, null) ?? task;
}
await initTask;
}
private static async Tasks.Task InitializeVisualizersPathAsync()
{
await VsShell.UiThreadAsync(() =>
{
ThreadHelper.ThrowIfNotOnUIThread();
try {
if (VsServiceProvider.GetService<DTE>() is not { } dte)
throw new InvalidOperationException("Unable to get service: DTE");
using var vsRootKey = Registry.CurrentUser.OpenSubKey(dte.RegistryRoot);
if (vsRootKey?.GetValue("VisualStudioLocation") is string vsLocation)
_visualizersPath = Path.Combine(vsLocation, "Visualizers");
} catch (Exception exception) {
exception.Log();
}
if (string.IsNullOrEmpty(_visualizersPath)) {
_visualizersPath = Path.Combine(Environment.GetFolderPath(Environment
.SpecialFolder.MyDocuments),
#if VS2022
@"Visual Studio 2022\Visualizers\");
#elif VS2019
@"Visual Studio 2019\Visualizers\");
#endif
}
});
}
}
}
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