Add possibility to read INI file

Add fileName property so we can choose specific settings file.

Task-number: QTBUG-59507
Change-Id: Iedd59eb703a8d00e7f0a6824dde929de5924b451
Reviewed-by: J-P Nurmi <jpnurmi@qt.io>

5 files changed, 46 insertions, 6 deletions

diff --git a/src/imports/settings/plugin.cpp b/src/imports/settings/plugin.cpp
index dc193d1a10..3ac0ad4653 100644
--- a/src/imports/settings/plugin.cpp
+++ b/src/imports/settings/plugin.cpp
@@ -55,6 +55,7 @@ public:
     {
         Q_ASSERT(QByteArray(uri) == QByteArray("Qt.labs.settings"));
         qmlRegisterType<QQmlSettings>(uri, 1, 0, "Settings");
+        qmlRegisterType<QQmlSettings,1>(uri, 1, 1, "Settings");
     }
 };
 
diff --git a/src/imports/settings/plugins.qmltypes b/src/imports/settings/plugins.qmltypes
index 40d8746525..ae3de3dfff 100644
--- a/src/imports/settings/plugins.qmltypes
+++ b/src/imports/settings/plugins.qmltypes
@@ -4,15 +4,20 @@ import QtQuick.tooling 1.2
 // It is used for QML tooling purposes only.
 //
 // This file was auto-generated by:
-// 'qmlplugindump -nonrelocatable -noforceqtquick Qt.labs.settings 1.0'
+// 'qmlplugindump -nonrelocatable -noforceqtquick Qt.labs.settings 1.1'
 
 Module {
     dependencies: []
     Component {
         name: "QQmlSettings"
         prototype: "QObject"
-        exports: ["Qt.labs.settings/Settings 1.0"]
-        exportMetaObjectRevisions: [0]
+        exports: [
+            "Qt.labs.settings/Settings 1.0",
+            "Qt.labs.settings/Settings 1.1"
+        ]
+        exportMetaObjectRevisions: [0, 1]
         Property { name: "category"; type: "string" }
+        Property { name: "fileName"; revision: 1; type: "string" }
     }
 }
+
diff --git a/src/imports/settings/qqmlsettings.cpp b/src/imports/settings/qqmlsettings.cpp
index 2271774643..12d057e503 100644
--- a/src/imports/settings/qqmlsettings.cpp
+++ b/src/imports/settings/qqmlsettings.cpp
@@ -156,7 +156,8 @@ QT_BEGIN_NAMESPACE
     Application specific settings are identified by providing application
     \l {QCoreApplication::applicationName}{name},
     \l {QCoreApplication::organizationName}{organization} and
-    \l {QCoreApplication::organizationDomain}{domain}.
+    \l {QCoreApplication::organizationDomain}{domain}, or by specifying
+    \l fileName.
 
     \code
     #include <QGuiApplication>
@@ -258,6 +259,7 @@ public:
     int timerId = 0;
     bool initialized = false;
     QString category;
+    QString fileName;
     mutable QPointer<QSettings> settings;
     QHash<const char *, QVariant> changedProperties;
 };
@@ -268,7 +270,7 @@ QSettings *QQmlSettingsPrivate::instance() const
 {
     if (!settings) {
         QQmlSettings *q = const_cast<QQmlSettings*>(q_func());
-        settings = new QSettings(q);
+        settings = fileName.isEmpty() ? new QSettings(q) : new QSettings(fileName, QSettings::IniFormat, q);
         if (!category.isEmpty())
             settings->beginGroup(category);
         if (initialized)
@@ -299,6 +301,7 @@ void QQmlSettingsPrivate::load()
     const QMetaObject *mo = q->metaObject();
     const int offset = mo->propertyOffset();
     const int count = mo->propertyCount();
+
     for (int i = offset; i < count; ++i) {
         QMetaProperty property = mo->property(i);
 
@@ -398,6 +401,33 @@ void QQmlSettings::setCategory(const QString &category)
     }
 }
 
+/*!
+    \qmlproperty string Settings::fileName
+
+    This property holds the path to the settings file. If the file doesn't
+    already exist, it is created.
+
+    \sa QSettings::fileName, QSettings::IniFormat
+
+    \since Qt.labs.settings 1.1
+*/
+QString QQmlSettings::fileName() const
+{
+    Q_D(const QQmlSettings);
+    return d->fileName;
+}
+
+void QQmlSettings::setFileName(const QString &fileName)
+{
+    Q_D(QQmlSettings);
+    if (d->fileName != fileName) {
+        d->reset();
+        d->fileName = fileName;
+        if (d->initialized)
+            d->load();
+    }
+}
+
 void QQmlSettings::classBegin()
 {
 }
diff --git a/src/imports/settings/qqmlsettings_p.h b/src/imports/settings/qqmlsettings_p.h
index ce942d7564..1f8721c1a0 100644
--- a/src/imports/settings/qqmlsettings_p.h
+++ b/src/imports/settings/qqmlsettings_p.h
@@ -65,6 +65,7 @@ class QQmlSettings : public QObject, public QQmlParserStatus
     Q_OBJECT
     Q_INTERFACES(QQmlParserStatus)
     Q_PROPERTY(QString category READ category WRITE setCategory FINAL)
+    Q_PROPERTY(QString fileName READ fileName WRITE setFileName FINAL REVISION 1)
 
 public:
     explicit QQmlSettings(QObject *parent = 0);
@@ -73,6 +74,9 @@ public:
     QString category() const;
     void setCategory(const QString &category);
 
+    QString fileName() const;
+    void setFileName(const QString &fileName);
+
 protected:
     void timerEvent(QTimerEvent *event) override;
 
diff --git a/src/imports/settings/settings.pro b/src/imports/settings/settings.pro
index 29229f59cb..816a6a9fef 100644
--- a/src/imports/settings/settings.pro
+++ b/src/imports/settings/settings.pro
@@ -1,7 +1,7 @@
 CXX_MODULE = qml
 TARGET  = qmlsettingsplugin
 TARGETPATH = Qt/labs/settings
-IMPORT_VERSION = 1.0
+IMPORT_VERSION = 1.1
 
 QT = core qml