remember memory parameter in cfg

.gitignore

@@ -8,3 +8,5 @@
 /Release/stickersolve-gui.exe
 /gmon.out
 /gmon.txt
+/cfg.txt
+/releases/

src/ConfigParser.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <fstream>
+#include <iostream>
+#include <string>
+
+class ConfigFile {
+public:
+    std::string path;
+    double maxMemory = 9;
+
+    ConfigFile(std::string path) : path(path) {}
+
+    void parse() {
+        std::fstream file{path, std::ios::in | std::ios::app};
+        if(!(file >> maxMemory)){
+            maxMemory = 9;
+        }
+        file.close();
+    }
+
+    void save() {
+        std::fstream file{path, std::ios::out | std::ios::trunc};
+        file << maxMemory;
+        file.close();
+    }
+};

src/main.cpp

@@ -1,4 +1,5 @@
 #include "AspectRatioWidget.hpp"
+#include "ConfigParser.h"
 #include "NxNeditor.hpp"
 #include "SelectColorButton.hpp"
 #include "SelectColorPanel.hpp"
@@ -24,7 +25,10 @@
 using namespace estd::shortnames;
 using namespace std;
 
+ConfigFile cfgFile{"./cfg.txt"};
+
 int main(int argc, char** argv) {
+    cfgFile.parse();
     cptr<QApplication> app = new QApplication(argc, argv);
     cptr<QMainWindow> mw = new QMainWindow();
 
@@ -75,7 +79,7 @@ int main(int argc, char** argv) {
     numSolutions->setRange(-1, INT_MAX);
     searchDepth->setValue(14);
     numSolutions->setValue(-1);
-    maxMemoryLimitGb->setValue(9);
+    maxMemoryLimitGb->setValue(cfgFile.maxMemory);
     puzzleColumn->addLayout(configForm);
     configForm->addRow(QObject::tr("Apply Moves:"), applyMoves);
     configForm->addRow(new EQLayoutWidget<QHBoxLayout>({cleanBtn, swapScramble, resetToSolved, applyMovesBtn}));
@@ -242,5 +246,9 @@ int main(int argc, char** argv) {
 
     QObject::connect(solveBtn, &QPushButton::clicked, [&]() { solveCallback(false); });
     QObject::connect(solveIncrementalBtn, &QPushButton::clicked, [&]() { solveCallback(true); });
-    return app->exec();
+    QObject::connect(maxMemoryLimitGb, QOverload<double>::of(&QDoubleSpinBox::valueChanged), [&](double val) { cfgFile.maxMemory = val; });
+
+    int errcode = app->exec();
+    cfgFile.save();
+    return errcode;
 }