app now just coordinates the components initialized in main

reduced responsibilities of constructors
started using more pointers.
sessions through app rather than app itself.
mostly split view away from app (still hard coded)
haven't decoupled sorts from timers as their actuator yet

src/sorters.cpp

@@ -1,29 +1,30 @@
 #include <cstdio>
+#include <memory>
 #include <utility>
 #include "sorters.hpp"
 using namespace std;
 
 
-SteppedBsort::SteppedBsort(SortInput &input): data(input) {};
+SteppedBsort::SteppedBsort(shared_ptr<SortInput> input): data(input) {};
 
 bool SteppedBsort:: step(){
 	if(is_finished==true) {
 		printf("finished");
 		return true;
 			}
-	if(data.values[j]>data.values[j+1])
+	if(data->values[j]>data->values[j+1])
 		{
-			swap(data.values[j], data.values[j+1]);
+			swap(data->values[j], data->values[j+1]);
 		}
 	j++;
-	if(j>=data.values.size()-1 -i){
+	if(j>=data->values.size()-1 -i){
 		j=0;
 		i++;
 	}
 
-	if (i==data.values.size()-1){
+	if (i==data->values.size()-1){
 		is_finished=true;
 	}
-	
+
 	return false;
 }