Add missing she/win/vk.h file

src/she/win/vk.h

@@ -0,0 +1,59 @@
+// SHE library
+// Copyright (C) 2012-2016  David Capello
+//
+// This file is released under the terms of the MIT license.
+// Read LICENSE.txt for more information.
+
+#ifndef SHE_WIN_VK_H_INCLUDED
+#define SHE_WIN_VK_H_INCLUDED
+#pragma once
+
+#include <windows.h>
+
+#include "she/keys.h"
+
+namespace she {
+
+  KeyScancode win32vk_to_scancode(int vk);
+  KeyModifiers get_modifiers_from_last_win32_message();
+
+  class VkToUnicode {
+  public:
+    VkToUnicode() : m_size(0) {
+      m_ok = (GetKeyboardState(&m_keystate[0]) ? true: false);
+    }
+
+    void toUnicode(int vk, int scancode) {
+      // ToUnicode returns several characters inside the buffer in
+      // case that a dead-key wasn't combined with the next pressed
+      // character.
+      m_size =
+        ToUnicode(vk, scancode, m_keystate, m_buffer,
+                  sizeof(m_buffer)/sizeof(m_buffer[0]), 0);
+    }
+
+    operator bool() { return m_ok; }
+    int size() const { return ABS(m_size); }
+    LPCWSTR begin() const { return m_buffer; }
+    LPCWSTR end() const { return m_buffer+size(); }
+
+    int operator[](const int i) {
+      ASSERT(i >= 0 && i < size());
+      return m_buffer[i];
+    }
+
+    // ToUnicode() returns -1 if there is dead key waiting
+    bool isDeadKey() const {
+      return (m_size == -1);
+    }
+
+  private:
+    bool m_ok;
+    BYTE m_keystate[256];
+    WCHAR m_buffer[8];
+    int m_size;
+  };
+
+} // namespace she
+
+#endif