From f19f813537c7aea1c20749c914e756b54a9c3cf5 Mon Sep 17 00:00:00 2001
From: Igor Pavlov <87184205+ip7z@users.noreply.github.com>
Date: Mon, 27 Dec 2021 00:00:00 +0000
Subject: '21.07'

---
 CPP/Windows/Menu.cpp | 216 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 216 insertions(+)
 create mode 100644 CPP/Windows/Menu.cpp

(limited to 'CPP/Windows/Menu.cpp')

diff --git a/CPP/Windows/Menu.cpp b/CPP/Windows/Menu.cpp
new file mode 100644
index 0000000..3ad6953
--- /dev/null
+++ b/CPP/Windows/Menu.cpp
@@ -0,0 +1,216 @@
+// Windows/Menu.cpp
+
+#include "StdAfx.h"
+
+#ifndef _UNICODE
+#include "../Common/StringConvert.h"
+#endif
+#include "Menu.h"
+
+#ifndef _UNICODE
+extern bool g_IsNT;
+#endif
+
+namespace NWindows {
+
+/*
+structures
+  MENUITEMINFOA
+  MENUITEMINFOW
+contain additional member:
+  #if (WINVER >= 0x0500)
+    HBITMAP hbmpItem;
+  #endif
+If we compile the source code with (WINVER >= 0x0500), some functions
+will not work at NT 4.0, if cbSize is set as sizeof(MENUITEMINFO*).
+So we use size of old version of structure. */
+
+#if defined(UNDER_CE) || defined(_WIN64) || (WINVER < 0x0500)
+  #ifndef _UNICODE
+  #define my_compatib_MENUITEMINFOA_size  sizeof(MENUITEMINFOA)
+  #endif
+  #define my_compatib_MENUITEMINFOW_size  sizeof(MENUITEMINFOW)
+#else
+  #define MY_STRUCT_SIZE_BEFORE(structname, member) ((UINT)(UINT_PTR)((LPBYTE)(&((structname*)0)->member) - (LPBYTE)(structname*)0))
+  #ifndef _UNICODE
+  #define my_compatib_MENUITEMINFOA_size MY_STRUCT_SIZE_BEFORE(MENUITEMINFOA, hbmpItem)
+  #endif
+  #define my_compatib_MENUITEMINFOW_size MY_STRUCT_SIZE_BEFORE(MENUITEMINFOW, hbmpItem)
+#endif
+
+static void ConvertItemToSysForm(const CMenuItem &item, MENUITEMINFOW &si)
+{
+  ZeroMemory(&si, sizeof(si));
+  si.cbSize = my_compatib_MENUITEMINFOW_size; // sizeof(si);
+  si.fMask = item.fMask;
+  si.fType = item.fType;
+  si.fState = item.fState;
+  si.wID = item.wID;
+  si.hSubMenu = item.hSubMenu;
+  si.hbmpChecked = item.hbmpChecked;
+  si.hbmpUnchecked = item.hbmpUnchecked;
+  si.dwItemData = item.dwItemData;
+}
+
+#ifndef _UNICODE
+static void ConvertItemToSysForm(const CMenuItem &item, MENUITEMINFOA &si)
+{
+  ZeroMemory(&si, sizeof(si));
+  si.cbSize = my_compatib_MENUITEMINFOA_size; // sizeof(si);
+  si.fMask = item.fMask;
+  si.fType = item.fType;
+  si.fState = item.fState;
+  si.wID = item.wID;
+  si.hSubMenu = item.hSubMenu;
+  si.hbmpChecked = item.hbmpChecked;
+  si.hbmpUnchecked = item.hbmpUnchecked;
+  si.dwItemData = item.dwItemData;
+}
+#endif
+
+static void ConvertItemToMyForm(const MENUITEMINFOW &si, CMenuItem &item)
+{
+  item.fMask = si.fMask;
+  item.fType = si.fType;
+  item.fState = si.fState;
+  item.wID = si.wID;
+  item.hSubMenu = si.hSubMenu;
+  item.hbmpChecked = si.hbmpChecked;
+  item.hbmpUnchecked = si.hbmpUnchecked;
+  item.dwItemData = si.dwItemData;
+}
+
+#ifndef _UNICODE
+static void ConvertItemToMyForm(const MENUITEMINFOA &si, CMenuItem &item)
+{
+  item.fMask = si.fMask;
+  item.fType = si.fType;
+  item.fState = si.fState;
+  item.wID = si.wID;
+  item.hSubMenu = si.hSubMenu;
+  item.hbmpChecked = si.hbmpChecked;
+  item.hbmpUnchecked = si.hbmpUnchecked;
+  item.dwItemData = si.dwItemData;
+}
+#endif
+
+bool CMenu::GetItem(UINT itemIndex, bool byPosition, CMenuItem &item)
+{
+  const UINT kMaxSize = 512;
+  #ifndef _UNICODE
+  if (!g_IsNT)
+  {
+    CHAR s[kMaxSize + 1];
+    MENUITEMINFOA si;
+    ConvertItemToSysForm(item, si);
+    if (item.IsString())
+    {
+      si.cch = kMaxSize;
+      si.dwTypeData = s;
+    }
+    if (GetItemInfo(itemIndex, byPosition, &si))
+    {
+      ConvertItemToMyForm(si, item);
+      if (item.IsString())
+        item.StringValue = GetUnicodeString(s);
+      return true;
+    }
+  }
+  else
+  #endif
+  {
+    wchar_t s[kMaxSize + 1];
+    MENUITEMINFOW si;
+    ConvertItemToSysForm(item, si);
+    if (item.IsString())
+    {
+      si.cch = kMaxSize;
+      si.dwTypeData = s;
+    }
+    if (GetItemInfo(itemIndex, byPosition, &si))
+    {
+      ConvertItemToMyForm(si, item);
+      if (item.IsString())
+        item.StringValue = s;
+      return true;
+    }
+  }
+  return false;
+}
+
+bool CMenu::SetItem(UINT itemIndex, bool byPosition, const CMenuItem &item)
+{
+  #ifndef _UNICODE
+  if (!g_IsNT)
+  {
+    MENUITEMINFOA si;
+    ConvertItemToSysForm(item, si);
+    AString s;
+    if (item.IsString())
+    {
+      s = GetSystemString(item.StringValue);
+      si.dwTypeData = s.Ptr_non_const();
+    }
+    return SetItemInfo(itemIndex, byPosition, &si);
+  }
+  else
+  #endif
+  {
+    MENUITEMINFOW si;
+    ConvertItemToSysForm(item, si);
+    if (item.IsString())
+      si.dwTypeData = item.StringValue.Ptr_non_const();
+    return SetItemInfo(itemIndex, byPosition, &si);
+  }
+}
+
+bool CMenu::InsertItem(UINT itemIndex, bool byPosition, const CMenuItem &item)
+{
+  #ifndef _UNICODE
+  if (!g_IsNT)
+  {
+    MENUITEMINFOA si;
+    ConvertItemToSysForm(item, si);
+    AString s;
+    if (item.IsString())
+    {
+      s = GetSystemString(item.StringValue);
+      si.dwTypeData = s.Ptr_non_const();
+    }
+    return InsertItem(itemIndex, byPosition, &si);
+  }
+  else
+  #endif
+  {
+    MENUITEMINFOW si;
+    ConvertItemToSysForm(item, si);
+    if (item.IsString())
+      si.dwTypeData = item.StringValue.Ptr_non_const();
+    #ifdef UNDER_CE
+    UINT flags = (item.fType & MFT_SEPARATOR) ? MF_SEPARATOR : MF_STRING;
+    UINT id = item.wID;
+    if ((item.fMask & MIIM_SUBMENU) != 0)
+    {
+      flags |= MF_POPUP;
+      id = (UINT)item.hSubMenu;
+    }
+    if (!Insert(itemIndex, flags | (byPosition ? MF_BYPOSITION : MF_BYCOMMAND), id, item.StringValue))
+      return false;
+    return SetItemInfo(itemIndex, byPosition, &si);
+    #else
+    return InsertItem(itemIndex, byPosition, &si);
+    #endif
+  }
+}
+
+#ifndef _UNICODE
+bool CMenu::AppendItem(UINT flags, UINT_PTR newItemID, LPCWSTR newItem)
+{
+  if (g_IsNT)
+    return BOOLToBool(::AppendMenuW(_menu, flags, newItemID, newItem));
+  else
+    return AppendItem(flags, newItemID, GetSystemString(newItem));
+}
+#endif
+
+}
-- 
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