Utility: Rework cursors

-Rename WindowCursor to SystemCursor
-Merged Cursor class with SystemCursor enum

src/Nazara/Utility/Win32/CursorImpl.cpp

@@ -30,27 +30,77 @@ namespace Nz
 		iconInfo.hbmMask = monoBitmap;
 		iconInfo.hbmColor = bitmap;
 
-		m_cursor = CreateIconIndirect(&iconInfo);
+		m_icon = CreateIconIndirect(&iconInfo);
 
 		DeleteObject(bitmap);
 		DeleteObject(monoBitmap);
 
-		if (!m_cursor)
+		if (!m_icon)
 		{
 			NazaraError("Failed to create cursor: " + Error::GetLastSystemError());
 			return false;
 		}
 
+		m_cursor = m_icon;
+
+		return true;
+	}
+
+	bool CursorImpl::Create(SystemCursor cursor)
+	{
+		if (cursor != SystemCursor_Move)
+			m_cursor = static_cast<HCURSOR>(LoadImage(nullptr, s_systemCursorIds[cursor], IMAGE_CURSOR, 0, 0, LR_SHARED));
+		else
+			m_cursor = nullptr;
+
+		// No need to free the cursor if shared
+		// http://msdn.microsoft.com/en-us/library/windows/desktop/ms648045(v=vs.85).aspx
+		m_icon = nullptr;
+
 		return true;
 	}
 
 	void CursorImpl::Destroy()
 	{
-		DestroyIcon(m_cursor);
+		if (m_icon)
+			DestroyIcon(m_icon);
 	}
 
 	HCURSOR CursorImpl::GetCursor()
 	{
 		return m_cursor;
 	}
+
+	bool CursorImpl::Initialize()
+	{
+		return true;
+	}
+
+	void CursorImpl::Uninitialize()
+	{
+	}
+
+	std::array<LPTSTR, SystemCursor_Max + 1> CursorImpl::s_systemCursorIds =
+	{
+		IDC_CROSS,       // SystemCursor_Crosshair
+		IDC_ARROW,       // SystemCursor_Default
+		IDC_HAND,        // SystemCursor_Hand
+		IDC_HELP,        // SystemCursor_Help
+		IDC_SIZEALL,     // SystemCursor_Move
+		nullptr,         // SystemCursor_None
+		IDC_HAND,        // SystemCursor_Pointer
+		IDC_APPSTARTING, // SystemCursor_Progress
+		IDC_SIZEWE,      // SystemCursor_ResizeE
+		IDC_SIZENS,      // SystemCursor_ResizeN
+		IDC_SIZENESW,    // SystemCursor_ResizeNE
+		IDC_SIZENWSE,    // SystemCursor_ResizeNW
+		IDC_SIZENS,      // SystemCursor_ResizeS
+		IDC_SIZENWSE,    // SystemCursor_ResizeSE
+		IDC_SIZENESW,    // SystemCursor_ResizeSW
+		IDC_SIZEWE,      // SystemCursor_ResizeW
+		IDC_IBEAM,       // SystemCursor_Text
+		IDC_WAIT         // SystemCursor_Wait
+	};
+
+	static_assert(SystemCursor_Max + 1 == 18, "System cursor array is incomplete");
 }