implemented rudimentary load/save

source/CMakeLists.txt

@@ -13,6 +13,7 @@ qt5_wrap_ui(UI_HEADERS
 add_executable(${PROJECT_NAME}
 	LogoTest.cpp
 	testdata.cpp
+	DataModel.cpp
 	MetaDataModel.cpp
 	mainwindow.cpp
 	${UI_HEADERS}

source/DataModel.cpp

@@ -0,0 +1,21 @@
+#include "DataModel.h"
+
+DataModel::DataModel(QObject *parent) : QObject(parent), m_metaData(this)
+{
+}
+
+void DataModel::write(QJsonObject &target) const
+{
+	QJsonObject metaData;
+	m_metaData.write(metaData);
+	target["MetaData"] = metaData;
+}
+
+void DataModel::read(const QJsonObject &source)
+{
+	const auto &metaData = source["MetaData"];
+	if (metaData.isObject())
+	{
+		m_metaData.read(metaData.toObject());
+	}
+}

source/DataModel.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include "MetaDataModel.h"
+
+#include <QJsonObject>
+
+class DataModel : public QObject
+{
+	Q_OBJECT
+
+public:
+	MetaDataModel m_metaData;
+
+public:
+	DataModel(QObject *parent);
+
+	void write(QJsonObject &target) const;
+	void read(const QJsonObject &source);
+};

source/MetaDataModel.cpp

@@ -40,7 +40,7 @@ QVariant MetaDataModel::data(const QModelIndex &index, int role) const
 	return QVariant();
 }
 
-void MetaDataModel::write(QJsonObject &json)
+void MetaDataModel::write(QJsonObject &json) const
 {
 	json["participant name"] = m_participant;
 	json["instructor name"] = m_instructor;

source/MetaDataModel.h

@@ -23,6 +23,6 @@ public:
 	QVariant data(
 		const QModelIndex &index, int role = Qt::DisplayRole) const override;
 
-	void write(QJsonObject &json);
+	void write(QJsonObject &json) const;
 	void read(const QJsonObject &json);
 };

source/mainwindow.cpp

@@ -2,34 +2,35 @@
 #include "ui_mainwindow.h"
 
 #include "testdata.h"
+#include "DataModel.h"
 #include "MetaDataModel.h"
+
 #include <QJsonObject>
 #include <QJsonDocument>
 #include <QFile>
 #include <QFileDialog>
 #include <QDataWidgetMapper>
 
-
 MainWindow::MainWindow(QWidget *parent)
-	: QMainWindow(parent), ui(new Ui::MainWindow)
+	: QMainWindow(parent), ui(new Ui::MainWindow),
+	  m_dataModel(new DataModel(parent))
+	  , m_widgetMapper(new QDataWidgetMapper(parent))
 {
 	ui->setupUi(this);
 
 	ui->actionSave_as->setIcon(QIcon::fromTheme("document-save-as", QIcon("/usr/share/gtk-doc/html/gtk2/document-save-as.png")));
+	ui->actionLoad->setIcon(QIcon::fromTheme("document-open", QIcon("/usr/share/gtk-doc/html/gtk2/document-open.png")));
+
 	connect(ui->actionSave_as, SIGNAL(triggered()), this, SLOT(saveAs()));
+	connect(ui->actionLoad, SIGNAL(triggered()), this, SLOT(load()));
 
-	MetaDataModel *metaDataModel = new MetaDataModel(this);
-
-	QDataWidgetMapper *mapper = new QDataWidgetMapper(this);
-	mapper->setModel(metaDataModel);
-	mapper->addMapping(ui->lineEdit, 0);
-	mapper->addMapping(ui->lineEdit_2, 1);
-	mapper->addMapping(ui->calendarWidget, 2);
-	mapper->addMapping(ui->calendarWidget_2, 3);
-	mapper->addMapping(ui->textEdit, 4);
-	mapper->toFirst();
-
-	//ui->tableView->setModel(metaDataModel);
+	m_widgetMapper->setModel(&m_dataModel->m_metaData);
+	m_widgetMapper->addMapping(ui->lineEdit, 0);
+	m_widgetMapper->addMapping(ui->lineEdit_2, 1);
+	m_widgetMapper->addMapping(ui->calendarWidget, 2);
+	m_widgetMapper->addMapping(ui->calendarWidget_2, 3);
+	m_widgetMapper->addMapping(ui->textEdit, 4);
+	m_widgetMapper->toFirst();
 }
 
 MainWindow::~MainWindow()
@@ -45,9 +46,8 @@ void MainWindow::saveAs()
 		return;
 	}
 
-	TestData testData;
 	QJsonObject saveData;
-	testData.write(saveData);
+	m_dataModel->write(saveData);
 
 	QJsonDocument saveDoc(saveData);
 
@@ -56,3 +56,26 @@ void MainWindow::saveAs()
 	saveFile.write(saveDoc.toJson());
 	saveFile.close();
 }
+
+void MainWindow::load()
+{
+	QString filename = QFileDialog::getOpenFileName(this);
+	if (filename.isEmpty())
+	{
+		return;
+	}
+
+	QFile loadFile(filename);
+	if (!loadFile.open(QFile::ReadOnly))
+	{
+		qWarning("Could not open file");
+		return;
+	}
+
+	QByteArray byteData = loadFile.readAll();
+	QJsonDocument loadDoc = QJsonDocument::fromJson(byteData);
+
+	m_dataModel->read(loadDoc.object());
+
+	m_widgetMapper->toFirst();
+}

source/mainwindow.h

@@ -2,6 +2,9 @@
 
 #include <QMainWindow>
 
+class DataModel;
+class QDataWidgetMapper;
+
 namespace Ui {
 class MainWindow;
 };
@@ -10,13 +13,16 @@ class MainWindow : public QMainWindow
 {
 	Q_OBJECT
 
+private:
+	Ui::MainWindow *ui;
+	DataModel *m_dataModel;
+	QDataWidgetMapper *m_widgetMapper;
+
 public:
 	MainWindow(QWidget *parent = nullptr);
 	~MainWindow();
 
 public slots:
 	void saveAs();
-
-private:
-	Ui::MainWindow *ui;
+	void load();
 };

source/mainwindow.ui

@@ -104,9 +104,6 @@
     <item>
      <widget class="QTextEdit" name="textEdit"/>
     </item>
-    <item>
-     <widget class="QTableView" name="tableView"/>
-    </item>
    </layout>
   </widget>
   <widget class="QMenuBar" name="menubar">
@@ -123,6 +120,7 @@
      <string>&amp;File</string>
     </property>
     <addaction name="actionSave_as"/>
+    <addaction name="actionLoad"/>
    </widget>
    <addaction name="menuFile"/>
   </widget>
@@ -138,6 +136,7 @@
     <bool>false</bool>
    </attribute>
    <addaction name="actionSave_as"/>
+   <addaction name="actionLoad"/>
   </widget>
   <action name="actionSave_as">
    <property name="text">
@@ -147,6 +146,11 @@
     <string>Save as...</string>
    </property>
   </action>
+  <action name="actionLoad">
+   <property name="text">
+    <string>Load</string>
+   </property>
+  </action>
  </widget>
  <resources/>
  <connections/>