UI Makeover

Capenovus · Sep 3, 2022 · ead0548 · ead0548
1 parent 8f80355
commit ead0548
Show file tree

Hide file tree

Showing 11 changed files with 547 additions and 516 deletions.
diff --git a/ENPEG/ENPEG.csproj b/ENPEG/ENPEG.csproj
@@ -67,18 +67,19 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="FolderPicker.cs" />
     <Compile Include="GUIDgen.cs" />
-    <Compile Include="Main.cs">
+    <Compile Include="OldStyle.cs">
       <SubType>Form</SubType>
     </Compile>
-    <Compile Include="Main.Designer.cs">
-      <DependentUpon>Main.cs</DependentUpon>
+    <Compile Include="OldStyle.Designer.cs">
+      <DependentUpon>OldStyle.cs</DependentUpon>
     </Compile>
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="RegeditGen.cs" />
-    <EmbeddedResource Include="Main.resx">
-      <DependentUpon>Main.cs</DependentUpon>
+    <EmbeddedResource Include="OldStyle.resx">
+      <DependentUpon>OldStyle.cs</DependentUpon>
     </EmbeddedResource>
     <EmbeddedResource Include="Properties\Resources.resx">
       <Generator>ResXFileCodeGenerator</Generator>

diff --git a/ENPEG/FolderPicker.cs b/ENPEG/FolderPicker.cs
@@ -0,0 +1,195 @@
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.ComTypes;
+
+public class FolderPicker
+{
+    public virtual string ResultPath { get; protected set; }
+    public virtual string ResultName { get; protected set; }
+    public virtual string InputPath { get; set; }
+    public virtual bool ForceFileSystem { get; set; }
+    public virtual string Title { get; set; }
+    public virtual string OkButtonLabel { get; set; }
+    public virtual string FileNameLabel { get; set; }
+
+    protected virtual int SetOptions(int options)
+    {
+        if (ForceFileSystem)
+        {
+            options |= (int)FOS.FOS_FORCEFILESYSTEM;
+        }
+        return options;
+    }
+
+    // for all .NET
+    public virtual bool? ShowDialog(IntPtr owner, bool throwOnError = false)
+    {
+        var dialog = (IFileOpenDialog)new FileOpenDialog();
+        if (!string.IsNullOrEmpty(InputPath))
+        {
+            if (CheckHr(SHCreateItemFromParsingName(InputPath, null, typeof(IShellItem).GUID, out var item), throwOnError) != 0)
+                return null;
+
+            dialog.SetFolder(item);
+        }
+
+        var options = FOS.FOS_PICKFOLDERS;
+        options = (FOS)SetOptions((int)options);
+        dialog.SetOptions(options);
+
+        if (Title != null)
+        {
+            dialog.SetTitle(Title);
+        }
+
+        if (OkButtonLabel != null)
+        {
+            dialog.SetOkButtonLabel(OkButtonLabel);
+        }
+
+        if (FileNameLabel != null)
+        {
+            dialog.SetFileName(FileNameLabel);
+        }
+
+        if (owner == IntPtr.Zero)
+        {
+            owner = Process.GetCurrentProcess().MainWindowHandle;
+            if (owner == IntPtr.Zero)
+            {
+                owner = GetDesktopWindow();
+            }
+        }
+
+        var hr = dialog.Show(owner);
+        if (hr == ERROR_CANCELLED)
+            return null;
+
+        if (CheckHr(hr, throwOnError) != 0)
+            return null;
+
+        if (CheckHr(dialog.GetResult(out var result), throwOnError) != 0)
+            return null;
+
+        if (CheckHr(result.GetDisplayName(SIGDN.SIGDN_DESKTOPABSOLUTEPARSING, out var path), throwOnError) != 0)
+            return null;
+
+        ResultPath = path;
+
+        if (CheckHr(result.GetDisplayName(SIGDN.SIGDN_DESKTOPABSOLUTEEDITING, out path), false) == 0)
+        {
+            ResultName = path;
+        }
+        return true;
+    }
+
+    private static int CheckHr(int hr, bool throwOnError)
+    {
+        if (hr != 0)
+        {
+            if (throwOnError)
+                Marshal.ThrowExceptionForHR(hr);
+        }
+        return hr;
+    }
+
+    [DllImport("shell32")]
+    private static extern int SHCreateItemFromParsingName([MarshalAs(UnmanagedType.LPWStr)] string pszPath, IBindCtx pbc, [MarshalAs(UnmanagedType.LPStruct)] Guid riid, out IShellItem ppv);
+
+    [DllImport("user32")]
+    private static extern IntPtr GetDesktopWindow();
+
+#pragma warning disable IDE1006 // Naming Styles
+    private const int ERROR_CANCELLED = unchecked((int)0x800704C7);
+#pragma warning restore IDE1006 // Naming Styles
+
+    [ComImport, Guid("DC1C5A9C-E88A-4dde-A5A1-60F82A20AEF7")] // CLSID_FileOpenDialog
+    private class FileOpenDialog
+    {
+    }
+
+    [ComImport, Guid("42f85136-db7e-439c-85f1-e4075d135fc8"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    private interface IFileOpenDialog
+    {
+        [PreserveSig] int Show(IntPtr parent); // IModalWindow
+        [PreserveSig] int SetFileTypes();  // not fully defined
+        [PreserveSig] int SetFileTypeIndex(int iFileType);
+        [PreserveSig] int GetFileTypeIndex(out int piFileType);
+        [PreserveSig] int Advise(); // not fully defined
+        [PreserveSig] int Unadvise();
+        [PreserveSig] int SetOptions(FOS fos);
+        [PreserveSig] int GetOptions(out FOS pfos);
+        [PreserveSig] int SetDefaultFolder(IShellItem psi);
+        [PreserveSig] int SetFolder(IShellItem psi);
+        [PreserveSig] int GetFolder(out IShellItem ppsi);
+        [PreserveSig] int GetCurrentSelection(out IShellItem ppsi);
+        [PreserveSig] int SetFileName([MarshalAs(UnmanagedType.LPWStr)] string pszName);
+        [PreserveSig] int GetFileName([MarshalAs(UnmanagedType.LPWStr)] out string pszName);
+        [PreserveSig] int SetTitle([MarshalAs(UnmanagedType.LPWStr)] string pszTitle);
+        [PreserveSig] int SetOkButtonLabel([MarshalAs(UnmanagedType.LPWStr)] string pszText);
+        [PreserveSig] int SetFileNameLabel([MarshalAs(UnmanagedType.LPWStr)] string pszLabel);
+        [PreserveSig] int GetResult(out IShellItem ppsi);
+        [PreserveSig] int AddPlace(IShellItem psi, int alignment);
+        [PreserveSig] int SetDefaultExtension([MarshalAs(UnmanagedType.LPWStr)] string pszDefaultExtension);
+        [PreserveSig] int Close(int hr);
+        [PreserveSig] int SetClientGuid();  // not fully defined
+        [PreserveSig] int ClearClientData();
+        [PreserveSig] int SetFilter([MarshalAs(UnmanagedType.IUnknown)] object pFilter);
+        [PreserveSig] int GetResults([MarshalAs(UnmanagedType.IUnknown)] out object ppenum);
+        [PreserveSig] int GetSelectedItems([MarshalAs(UnmanagedType.IUnknown)] out object ppsai);
+    }
+
+    [ComImport, Guid("43826D1E-E718-42EE-BC55-A1E261C37BFE"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    private interface IShellItem
+    {
+        [PreserveSig] int BindToHandler(); // not fully defined
+        [PreserveSig] int GetParent(); // not fully defined
+        [PreserveSig] int GetDisplayName(SIGDN sigdnName, [MarshalAs(UnmanagedType.LPWStr)] out string ppszName);
+        [PreserveSig] int GetAttributes();  // not fully defined
+        [PreserveSig] int Compare();  // not fully defined
+    }
+
+#pragma warning disable CA1712 // Do not prefix enum values with type name
+    private enum SIGDN : uint
+    {
+        SIGDN_DESKTOPABSOLUTEEDITING = 0x8004c000,
+        SIGDN_DESKTOPABSOLUTEPARSING = 0x80028000,
+        SIGDN_FILESYSPATH = 0x80058000,
+        SIGDN_NORMALDISPLAY = 0,
+        SIGDN_PARENTRELATIVE = 0x80080001,
+        SIGDN_PARENTRELATIVEEDITING = 0x80031001,
+        SIGDN_PARENTRELATIVEFORADDRESSBAR = 0x8007c001,
+        SIGDN_PARENTRELATIVEPARSING = 0x80018001,
+        SIGDN_URL = 0x80068000
+    }
+
+    [Flags]
+    private enum FOS
+    {
+        FOS_OVERWRITEPROMPT = 0x2,
+        FOS_STRICTFILETYPES = 0x4,
+        FOS_NOCHANGEDIR = 0x8,
+        FOS_PICKFOLDERS = 0x20,
+        FOS_FORCEFILESYSTEM = 0x40,
+        FOS_ALLNONSTORAGEITEMS = 0x80,
+        FOS_NOVALIDATE = 0x100,
+        FOS_ALLOWMULTISELECT = 0x200,
+        FOS_PATHMUSTEXIST = 0x800,
+        FOS_FILEMUSTEXIST = 0x1000,
+        FOS_CREATEPROMPT = 0x2000,
+        FOS_SHAREAWARE = 0x4000,
+        FOS_NOREADONLYRETURN = 0x8000,
+        FOS_NOTESTFILECREATE = 0x10000,
+        FOS_HIDEMRUPLACES = 0x20000,
+        FOS_HIDEPINNEDPLACES = 0x40000,
+        FOS_NODEREFERENCELINKS = 0x100000,
+        FOS_OKBUTTONNEEDSINTERACTION = 0x200000,
+        FOS_DONTADDTORECENT = 0x2000000,
+        FOS_FORCESHOWHIDDEN = 0x10000000,
+        FOS_DEFAULTNOMINIMODE = 0x20000000,
+        FOS_FORCEPREVIEWPANEON = 0x40000000,
+        FOS_SUPPORTSTREAMABLEITEMS = unchecked((int)0x80000000)
+    }
+#pragma warning restore CA1712 // Do not prefix enum values with type name
+}