BTIRenderer

BTIRenderer (or Box, Text, and Image Renderer) is a single header, bare-bones SDL2 wrapper to ease the implementation of boxes, texts, images and rendering shapes and copies in SDL2, specifically made to be used in Cxxdroid.

Setup

Download the header, add it to the same directory of your program and include the following libraries:

//necessary standard libraries to include
#include <string>
#include <vector>

//include SDL library GUI
#include <SDL2/SDL.h>
#include <SDL2/SDL_ttf.h>
#include <SDL2/SDL_image.h>

//define macros for the window size
#define WIDTH 600
#define HEIGHT 600

//include the BTIRenderer wrapper
#include "BTIRenderer.h"

Example

Hello World!

To print a Hello World! text, do the following:

//Initialize SDL and TTF
SDL_Init(SDL_INIT_EVERYTHING);
TTF_Init();
	
//Add context
BTI::draw ctx;
	
//create a text and add it to the renderer
BTI::text hello_text(ctx.renderer,ctx.font,{255,255,255},"Hello World!",0,0,3);
ctx.addCopy(hello_text.texture,NULL,&hello_text.rect);

//clear the screen
ctx.clear_render();
	
//render it to the buffer
ctx.render();
	
//render it to the screen
ctx.renderOutput();
	
//delay 1 second to view the program
SDL_Delay(1000);

Bouncing DVD

//Initialize SDL and TTF
SDL_Init(SDL_INIT_EVERYTHING);
TTF_Init();

//Add context
BTI::draw ctx;

//declare variables for velocity
int vx1 = 1, vy1 = 1;

//create the DVD text and add it to the renderer
BTI::text dvd1(ctx.renderer, ctx.font, {195, 255, 235}, "DVD", 0, 0, 5);
ctx.addCopy(dvd1.texture, NULL, &dvd1.rect);

int vx2 = -1, vy2 = -1;	
BTI::text dvd2(ctx.renderer, ctx.font, {255, 195, 235}, "DVD", 100, 500, 5);
ctx.addCopy(dvd2.texture, NULL, &dvd2.rect);

while (1)
{
	//clear the screen
	ctx.clear_render();

	//update position
	dvd1.rect.x += vx1;
	dvd1.rect.y += vy1;

	dvd2.rect.x += vx2;
	dvd2.rect.y += vy2;

	//check collision
	if (dvd1.rect.x <= 0 || dvd1.rect.x + dvd1.rect.w >= WIDTH)
		vx1 = -vx1;
	if (dvd1.rect.y <= 0 || dvd1.rect.y + dvd1.rect.h >= HEIGHT)
		vy1 = -vy1;

	if (dvd2.rect.x <= 0 || dvd2.rect.x + dvd2.rect.w >= WIDTH)
		vx2 = -vx2;
	if (dvd2.rect.y <= 0 || dvd2.rect.y + dvd2.rect.h >= HEIGHT)
		vy2 = -vy2;

	//render it to the buffer
	ctx.render();

	//render it to the screen
	ctx.renderOutput();

	SDL_Delay(5);
}

Gif: