Add support for reading studio state

.gitignore

@@ -7,3 +7,4 @@ nostalgia.gba
 nostalgia.sav
 nostalgia_media.oxfs
 media_header.txt
+studio_state.json

src/nostalgia/studio/lib/json_write.hpp

@@ -55,10 +55,11 @@ ox::Error JsonWriter::op(QString fieldName, T *src) {
 template<typename T>
 ox::Error JsonWriter::op(QString fieldName, QVector<T> *src) {
 	ox::Error err = 0;
-	auto &a = m_dest[fieldName] = QJsonArray();
+	QJsonArray a;
 	for (int i = 0; i < src->size(); i++) {
 		err |= op(a[i], &src->at(i));
 	}
+	m_dest[fieldName] = a;
 	return err;
 };
 

src/nostalgia/studio/mainwindow.cpp

@@ -16,8 +16,10 @@
 #include <QLineEdit>
 #include <QMenuBar>
 #include <QTabBar>
+#include <QTextStream>
 #include <QVector>
 
+#include "lib/json.hpp"
 #include "lib/wizard.hpp"
 #include "lib/oxfstreeview.hpp"
 #include "lib/project.hpp"
@@ -26,6 +28,8 @@
 namespace nostalgia {
 namespace studio {
 
+const QString MainWindow::StateFilePath = "studio_state.json";
+
 MainWindow::MainWindow(NostalgiaStudioProfile config, QWidget *parent) {
 	auto screenSize = QApplication::desktop()->screenGeometry();
 
@@ -42,6 +46,8 @@ MainWindow::MainWindow(NostalgiaStudioProfile config, QWidget *parent) {
 
 	setupMenu();
 	setupProjectExplorer();
+
+	readState();
 }
 
 MainWindow::~MainWindow() {
@@ -151,15 +157,48 @@ QAction *MainWindow::addAction(QMenu *menu, QString text, QString toolTip,
 	return action;
 }
 
-void MainWindow::openProject() {
-	auto p = QFileDialog::getExistingDirectory(this, tr("Select Project Directory..."), QDir::homePath());
-	auto project = QSharedPointer<Project>(new Project(p));
+int MainWindow::readState(QString path) {
+	int err = 0;
+	QString json;
+	QFile file(path);
+	err |= file.open(QIODevice::ReadOnly);
+	json = QTextStream(&file).readAll();
+	file.close();
+	err |= readJson(json, &m_state);
+	err |= openProject(m_state.projectPath);
+	return err;
+}
+
+int MainWindow::writeState(QString path) {
+	int err = 0;
+	QString json;
+	err |= writeJson(&json, &m_state);
+	QFile file(path);
+	err |= file.open(QIODevice::WriteOnly);
+	QTextStream(&file) << json;
+	file.close();
+	return err;
+}
+
+int MainWindow::openProject(QString projectPath) {
+	auto project = QSharedPointer<Project>(new Project(projectPath));
 	auto err = project->open();
 	if (err == 0) {
 		m_project = project;
 		m_projectExplorer->setModel(new OxFSModel(m_project->romFS()));
 		m_importAction->setEnabled(true);
+		m_state.projectPath = projectPath;
 	}
+	return err;
+}
+
+int MainWindow::openProject() {
+	auto projectPath = QFileDialog::getExistingDirectory(this, tr("Select Project Directory..."), QDir::homePath());
+	auto err = openProject(projectPath);
+	if (err == 0) {
+		writeState();
+	}
+	return err;
 }
 
 void MainWindow::showNewWizard() {

src/nostalgia/studio/mainwindow.hpp

@@ -57,8 +57,10 @@ class MainWindow: public QMainWindow {
 	public:
 		static const QString EditorSettings;
 		static const QString AppTitle;
+		static const QString StateFilePath;
 
 	private:
+		NostalgiaStudioState m_state;
 		QAction *m_importAction = nullptr;
 		QSharedPointer<Project> m_project;
 		QPointer<QMenu> m_viewMenu;
@@ -71,8 +73,6 @@ class MainWindow: public QMainWindow {
 
 		virtual ~MainWindow();
 
-		void openProject(QString);
-
 	private:
 		void setupDockWidgets();
 
@@ -85,17 +85,19 @@ class MainWindow: public QMainWindow {
 		QAction *addAction(QMenu *menu, QString text, QString toolTip, const QObject *tgt, const char *cb);
 
 		QAction *addAction(QMenu *menu, QString text, QString toolTip,
-		               QKeySequence::StandardKey key, const QObject *tgt, const char *cb);
+		                   QKeySequence::StandardKey key, const QObject *tgt, const char *cb);
 
 		QAction *addAction(QMenu *menu, QString text, QString toolTip,
-		               QKeySequence::StandardKey key, void (*cb)());
+		                   QKeySequence::StandardKey key, void (*cb)());
 
-		int readSettings(QString path);
+		int readState(QString path = StateFilePath);
 
-		int writeSettings(QString path);
+		int writeState(QString path = StateFilePath);
+
+		int openProject(QString);
 
 	private slots:
-		void openProject();
+		int openProject();
 
 		void showNewWizard();