Added touch API

src/SFML/Window/CMakeLists.txt

@@ -18,6 +18,8 @@ set(SRC
     ${INCROOT}/Mouse.h
     ${SRCROOT}/Sensor.cpp
     ${INCROOT}/Sensor.h
+    ${SRCROOT}/Touch.cpp
+    ${INCROOT}/Touch.h
     ${INCROOT}/Types.h
     ${SRCROOT}/VideoMode.cpp
     ${INCROOT}/VideoMode.h

src/SFML/Window/Touch.cpp

@@ -0,0 +1,53 @@
+////////////////////////////////////////////////////////////
+//
+// SFML - Simple and Fast Multimedia Library
+// Copyright (C) 2007-2015 Laurent Gomila (laurent@sfml-dev.org)
+//
+// This software is provided 'as-is', without any express or implied warranty.
+// In no event will the authors be held liable for any damages arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it freely,
+// subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented;
+//    you must not claim that you wrote the original software.
+//    If you use this software in a product, an acknowledgment
+//    in the product documentation would be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such,
+//    and must not be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source distribution.
+//
+////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////
+// Headers
+////////////////////////////////////////////////////////////
+#include <SFML/Window/Touch.h>
+#include <SFML/Window/Touch.hpp>
+#include <SFML/Window/WindowStruct.h>
+#include <SFML/Internal.h>
+
+
+////////////////////////////////////////////////////////////
+sfBool sfTouch_isDown(unsigned int finger)
+{
+    return sf::Touch::isDown(finger);
+}
+
+////////////////////////////////////////////////////////////
+sfVector2i sfTouch_getPosition(unsigned int finger, const sfWindow* relativeTo)
+{
+    sf::Vector2i sfmlPosition;
+
+    if (relativeTo)
+        sfmlPosition = sf::Touch::getPosition(finger, relativeTo->This);
+    else
+        sfmlPosition = sf::Touch::getPosition(finger);
+
+    sfVector2i position = {sfmlPosition.x, sfmlPosition.y};
+    return position;
+}
+