Initial (already working) implementation of json profile import/export.

app/FileIO.h

@@ -0,0 +1,50 @@
+#ifndef FILEIO_H
+#define FILEIO_H
+
+#include <QObject>
+#include <QFile>
+#include <QTextStream>
+#include <QUrl>
+
+class FileIO : public QObject
+{
+    Q_OBJECT
+
+public:
+    FileIO() {}
+
+public slots:
+    bool write(const QString& sourceUrl, const QString& data) {
+        if (sourceUrl.isEmpty())
+            return false;
+
+        QUrl url(sourceUrl);
+        QFile file(url.toLocalFile());
+        if (!file.open(QFile::WriteOnly | QFile::Truncate))
+            return false;
+
+        QTextStream out(&file);
+        out << data;
+        file.close();
+        return true;
+    }
+
+    QString read(const QString& sourceUrl) {
+        if (sourceUrl.isEmpty())
+            return "";
+
+        QUrl url(sourceUrl);
+        QFile file(url.toLocalFile());
+        if (!file.open(QFile::ReadOnly))
+            return "";
+
+        QTextStream in(&file);
+        QString result = in.readAll();
+
+        file.close();
+
+        return result;
+    }
+};
+
+#endif // FILEIO_H

app/app.pro

@@ -15,3 +15,6 @@ RESOURCES += qml/resources.qrc
 target.path += /usr/bin/
 
 INSTALLS += target
+
+HEADERS += \
+    FileIO.h

app/main.cpp

@@ -9,6 +9,8 @@
 #include <QDebug>
 #include <stdlib.h>
 
+#include <FileIO.h>
+
 
 QString getNamedArgument(QStringList args, QString name) {
     int index = args.indexOf(name);
@@ -37,6 +39,10 @@ int main(int argc, char *argv[])
     engine.rootContext()->setContextProperty("workdir", getNamedArgument(args, "--workdir"));
     engine.rootContext()->setContextProperty("shellProgram", getNamedArgument(args, "--program"));
 
+    // Used to read and write files
+    FileIO fileIO;
+    engine.rootContext()->setContextProperty("fileio", &fileIO);
+
     // Manage import paths for Linux and OSX.
     QStringList importPathList = engine.importPathList();
     importPathList.prepend(QCoreApplication::applicationDirPath() + "/imports/");

app/qml/ApplicationSettings.qml

@@ -181,8 +181,8 @@ Item{
         return JSON.stringify(settings);
     }
 
-    function composeProfileString(){
-        var settings = {
+    function composeProfileObject(){
+        var profile = {
             background_color: _background_color,
             font_color: _font_color,
             brightness_flickering: brightness_flickering,
@@ -205,7 +205,11 @@ Item{
             fontIndex: fontIndexes[rasterization],
             fontWidth: fontWidth
         }
-        return JSON.stringify(settings);
+        return profile;
+    }
+
+    function composeProfileString(){
+        return JSON.stringify(composeProfileObject());
     }
 
     function loadSettings(){

app/qml/SettingsGeneralTab.qml

@@ -21,6 +21,7 @@
 import QtQuick 2.2
 import QtQuick.Controls 1.1
 import QtQuick.Layouts 1.1
+import QtQuick.Dialogs 1.1
 
 Tab{
     ColumnLayout{
@@ -62,10 +63,67 @@ Tab{
                         }
                     }
                 }
+                RowLayout{
+                    Layout.fillWidth: true
+                    Button{
+                        Layout.fillWidth: true
+                        text: qsTr("Import From File")
+                        onClicked: {
+                            fileDialog.selectExisting = true;
+                            fileDialog.callBack = function (url) {loadFile(url);};
+                            fileDialog.open();
+                        }
+
+                        function loadFile(url) {
+                            console.log("Loading file: " + url);
+                            var profileStirng = fileio.read(url);
+                            shadersettings.loadProfileString(profileStirng);
+                        }
+                    }
+                    Button{
+                        Layout.fillWidth: true
+                        text: qsTr("Export To File")
+                        onClicked: {
+                            fileDialog.selectExisting = false;
+                            fileDialog.callBack = function (url) {storeFile(url);};
+                            fileDialog.open();
+                        }
+
+                        function storeFile(url) {
+                            console.log("Storing file: " + url);
+                            var profileObject = shadersettings.composeProfileObject();
+                            fileio.write(url, JSON.stringify(profileObject, undefined, 2));
+                        }
+                    }
+                }
                 InsertNameDialog{
                     id: insertname
                     onNameSelected: shadersettings.addNewCustomProfile(name)
                 }
+                Loader {
+                    property var callBack
+                    property bool selectExisting: false
+                    id: fileDialog
+
+                    sourceComponent: FileDialog{
+                        nameFilters: ["Json files (*.json)"]
+                        selectMultiple: false
+                        selectFolder: false
+                        selectExisting: fileDialog.selectExisting
+                        onAccepted: callBack(fileUrl);
+                    }
+
+                    onSelectExistingChanged: reload()
+
+                    function open() {
+                        item.open();
+                    }
+
+                    function reload() {
+                        active = false;
+                        active = true;
+                    }
+                }
             }
         }
         GroupBox{