Initial commit, read more

This commit includes:

* Button
* TextLine
* TextBox
* TextField

It also includes these dependencies:

* Image
* BoundingBox

text_line.hpp

@@ -0,0 +1,53 @@
+/* Copyright: (c) Kayne Ruse 2013-2016
+ * 
+ * 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.
+*/
+#pragma once
+
+#include "SDL2/SDL.h"
+#include "SDL2/SDL_ttf.h"
+
+#include <string>
+
+class TextLine {
+public:
+	TextLine();
+	TextLine(SDL_Renderer*, TTF_Font*, SDL_Color, std::string, int x, int y);
+	virtual ~TextLine();
+
+	void DrawTo(SDL_Renderer*);
+
+	void SetText(SDL_Renderer*, TTF_Font*, SDL_Color, std::string);
+	void ClearText();
+
+	//accessors & mutators
+	int SetX(int i);
+	int SetY(int i);
+	int GetX() const;
+	int GetY() const;
+
+	//utility
+	int GetPointHeight();
+
+protected:
+	SDL_Texture* texture = nullptr;
+	int posX = 0, posY = 0;
+	int pointHeight = 0; //internal use for TextBox
+};