Move code adjusting whitespaces and tabs into Wizards/Util

Change-Id: Ife956ad518ad2b3a087c3887a83cfab8c70df666
Reviewed-by: Miguel Costa <miguel.costa@qt.io>

5 files changed, 78 insertions, 9 deletions

diff --git a/QtVsTools.Wizards/ItemWizard/QtClass/QtClassWizard.cs b/QtVsTools.Wizards/ItemWizard/QtClass/QtClassWizard.cs
index 45a60165..10a47d21 100644
--- a/QtVsTools.Wizards/ItemWizard/QtClass/QtClassWizard.cs
+++ b/QtVsTools.Wizards/ItemWizard/QtClass/QtClassWizard.cs
@@ -9,14 +9,13 @@ using System.Linq;
 using System.Text;
 using System.Text.RegularExpressions;
 using System.Windows.Controls;
-using Microsoft.VisualStudio.Shell;
 using EnvDTE;
+using Microsoft.VisualStudio.Shell;
 
 namespace QtVsTools.Wizards.ItemWizard
 {
     using Common;
     using Core;
-    using Core.MsBuild;
     using ProjectWizard;
     using QtVsTools.Common;
     using Util;
@@ -161,7 +160,7 @@ namespace QtVsTools.Wizards.ItemWizard
         public override void ProjectItemFinishedGenerating(ProjectItem projectItem)
         {
             ThreadHelper.ThrowIfNotOnUIThread();
-            QtProject.AdjustWhitespace(Dte, projectItem.Properties.Item("FullPath").Value.ToString());
+            TextAndWhitespace.Adjust(Dte, projectItem.Properties.Item("FullPath").Value.ToString());
         }
     }
 }
diff --git a/QtVsTools.Wizards/ItemWizard/Translation/TranslationWizard.cs b/QtVsTools.Wizards/ItemWizard/Translation/TranslationWizard.cs
index 48242590..31338de2 100644
--- a/QtVsTools.Wizards/ItemWizard/Translation/TranslationWizard.cs
+++ b/QtVsTools.Wizards/ItemWizard/Translation/TranslationWizard.cs
@@ -7,13 +7,12 @@ using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
-using Microsoft.VisualStudio.Shell;
 using EnvDTE;
+using Microsoft.VisualStudio.Shell;
 
 namespace QtVsTools.Wizards.ItemWizard
 {
     using Common;
-    using Core.MsBuild;
     using ProjectWizard;
     using QtVsTools.Common;
     using Util;
@@ -92,7 +91,7 @@ namespace QtVsTools.Wizards.ItemWizard
         public override void ProjectItemFinishedGenerating(ProjectItem projectItem)
         {
             ThreadHelper.ThrowIfNotOnUIThread();
-            QtProject.AdjustWhitespace(Dte, projectItem.Properties.Item("FullPath").Value.ToString());
+            TextAndWhitespace.Adjust(Dte, projectItem.Properties.Item("FullPath").Value.ToString());
         }
     }
 }
diff --git a/QtVsTools.Wizards/ItemWizard/WidgetsClass/WidgetsClassWizard.cs b/QtVsTools.Wizards/ItemWizard/WidgetsClass/WidgetsClassWizard.cs
index d3f7af32..d8a1a2b3 100644
--- a/QtVsTools.Wizards/ItemWizard/WidgetsClass/WidgetsClassWizard.cs
+++ b/QtVsTools.Wizards/ItemWizard/WidgetsClass/WidgetsClassWizard.cs
@@ -10,14 +10,13 @@ using System.Linq;
 using System.Text;
 using System.Text.RegularExpressions;
 using System.Windows.Controls;
-using Microsoft.VisualStudio.Shell;
 using EnvDTE;
+using Microsoft.VisualStudio.Shell;
 
 namespace QtVsTools.Wizards.ItemWizard
 {
     using Common;
     using Core;
-    using Core.MsBuild;
     using ProjectWizard;
     using QtVsTools.Common;
     using Util;
@@ -207,7 +206,7 @@ namespace QtVsTools.Wizards.ItemWizard
         public override void ProjectItemFinishedGenerating(ProjectItem projectItem)
         {
             ThreadHelper.ThrowIfNotOnUIThread();
-            QtProject.AdjustWhitespace(Dte, projectItem.Properties.Item("FullPath").Value.ToString());
+            TextAndWhitespace.Adjust(Dte, projectItem.Properties.Item("FullPath").Value.ToString());
         }
     }
 }
diff --git a/QtVsTools.Wizards/QtVsTools.Wizards.csproj b/QtVsTools.Wizards/QtVsTools.Wizards.csproj
index c968feda..69dabac0 100644
--- a/QtVsTools.Wizards/QtVsTools.Wizards.csproj
+++ b/QtVsTools.Wizards/QtVsTools.Wizards.csproj
@@ -137,6 +137,7 @@
     <Compile Include="ProjectWizard\Library\LibraryWizard.cs" />
     <Compile Include="ItemWizard\QtClass\QtClassWizard.cs" />
     <Compile Include="ItemWizard\WidgetsClass\WidgetsClassWizard.cs" />
+    <Compile Include="Util\TextAndWhitespace.cs" />
     <Compile Include="Util\VCRulePropertyStorageHelper.cs" />
     <T4Template Include="Properties\AssemblyInfo.cs">
       <Generator>TextTemplatingFileGenerator</Generator>
diff --git a/QtVsTools.Wizards/Util/TextAndWhitespace.cs b/QtVsTools.Wizards/Util/TextAndWhitespace.cs
new file mode 100644
index 00000000..b9cc6e0c
--- /dev/null
+++ b/QtVsTools.Wizards/Util/TextAndWhitespace.cs
@@ -0,0 +1,71 @@
+/**************************************************************************************************
+ Copyright (C) 2023 The Qt Company Ltd.
+ SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+**************************************************************************************************/
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using Microsoft.VisualStudio.Shell;
+
+namespace QtVsTools.Wizards.Util
+{
+    using Core;
+
+    internal static class TextAndWhitespace
+    {
+
+        /// <summary>
+        /// Adjusts the whitespaces and tabs in the given file according to VS settings.
+        /// </summary>
+        /// <param name="dte"></param>
+        /// <param name="file"></param>
+        internal static void Adjust(EnvDTE.DTE dte, string file)
+        {
+            ThreadHelper.ThrowIfNotOnUIThread();
+
+            if (!File.Exists(file))
+                return;
+
+            // only replace whitespaces in known types
+            if (!HelperFunctions.IsSourceFile(file) && !HelperFunctions.IsHeaderFile(file)
+                && !HelperFunctions.IsUicFile(file)) {
+                return;
+            }
+
+            try {
+                var prop = dte.Properties["TextEditor", "C/C++"];
+                var tabSize = Convert.ToInt64(prop.Item("TabSize").Value);
+                var insertTabs = Convert.ToBoolean(prop.Item("InsertTabs").Value);
+
+                var oldValue = insertTabs ? "    " : "\t";
+                var newValue = insertTabs ? "\t" : GetWhitespaces(tabSize);
+
+                var list = new List<string>();
+                var reader = new StreamReader(file);
+                while (reader.ReadLine() is { } line) {
+                    if (line.StartsWith(oldValue, StringComparison.Ordinal))
+                        line = line.Replace(oldValue, newValue);
+                    list.Add(line);
+                }
+                reader.Close();
+
+                var writer = new StreamWriter(file);
+                foreach (var l in list)
+                    writer.WriteLine(l);
+                writer.Close();
+            } catch (Exception e) {
+                Messages.Print("Cannot adjust whitespace or tabs in file (write)."
+                    + Environment.NewLine + $"({e})");
+            }
+        }
+
+        private static string GetWhitespaces(long size)
+        {
+            var whitespaces = string.Empty;
+            for (long i = 0; i < size; ++i)
+                whitespaces += " ";
+            return whitespaces;
+        }
+    }
+}