New Feature: Right-to-Left Layout for Feed Articles in RTL Languages

I added a feature that lets change the feed's articles from right to left for languages such as Arabic, Urdu, Hebrew, Farsi...
To enable it :  **The desired feed -> Edit selected item -> Articles -> Right-to-left layout**.

![LTR](https://github.com/martinrotter/rssguard/assets/25085777/a555d38d-a066-44d2-b0d0-158daae4ac2b)
![RTL](https://github.com/martinrotter/rssguard/assets/25085777/81cde3e3-f645-4c2b-a46a-d60aa5f54bd7)

resources/sql/db_init_sqlite.sql

@@ -43,6 +43,7 @@ CREATE TABLE Feeds (
   update_interval INTEGER     NOT NULL DEFAULT 900 CHECK (update_interval >= 1),
   is_off          INTEGER     NOT NULL DEFAULT 0 CHECK (is_off >= 0 AND is_off <= 1),
   is_quiet        INTEGER     NOT NULL DEFAULT 0 CHECK (is_quiet >= 0 AND is_quiet <= 1),
+  is_rtl          INTEGER     NOT NULL DEFAULT 0 CHECK (is_rtl >= 0 AND is_rtl <= 1),
   add_any_datetime_articles	INTEGER NOT NULL DEFAULT 0 CHECK(add_any_datetime_articles >= 0 AND add_any_datetime_articles <= 1),
   avoid_old_articles	INTEGER NOT NULL DEFAULT 0 CHECK(avoid_old_articles >= 0 AND avoid_old_articles <= 1),
   datetime_to_avoid	BIGINT      NOT NULL DEFAULT 0 CHECK (datetime_to_avoid >= 0),

resources/sql/db_update_sqlite_3_4.sql

@@ -13,6 +13,7 @@ CREATE TABLE Feeds (
   update_interval INTEGER     NOT NULL DEFAULT 900 CHECK (update_interval >= 1),
   is_off          INTEGER     NOT NULL DEFAULT 0 CHECK (is_off >= 0 AND is_off <= 1),
   is_quiet        INTEGER     NOT NULL DEFAULT 0 CHECK (is_quiet >= 0 AND is_quiet <= 1),
+  is_rtl          INTEGER     NOT NULL DEFAULT 0 CHECK (is_rtl >= 0 AND is_rtl <= 1),
   add_any_datetime_articles	INTEGER NOT NULL DEFAULT 0 CHECK(add_any_datetime_articles >= 0 AND add_any_datetime_articles <= 1),
   avoid_old_articles	INTEGER NOT NULL DEFAULT 0 CHECK(avoid_old_articles >= 0 AND avoid_old_articles <= 1),
   datetime_to_avoid	BIGINT      NOT NULL DEFAULT 0 CHECK (datetime_to_avoid >= 0),

src/librssguard/database/databasequeries.cpp

@@ -2180,7 +2180,7 @@ void DatabaseQueries::createOverwriteFeed(const QSqlDatabase& db, Feed* feed, in
             "SET title = :title, ordr = :ordr, description = :description, date_created = :date_created, "
             " icon = :icon, category = :category, source = :source, update_type = :update_type,"
             " update_interval = :update_interval, is_off = :is_off, is_quiet = :is_quiet, open_articles ="
-            " :open_articles, add_any_datetime_articles = :add_any_datetime_articles,"
+            " :open_articles, is_rtl = :is_rtl, add_any_datetime_articles = :add_any_datetime_articles,"
             " avoid_old_articles = :avoid_old_articles, datetime_to_avoid = :datetime_to_avoid, account_id"
             " = :account_id, custom_id = :custom_id, custom_data = :custom_data WHERE id = :id;");
   q.bindValue(QSL(":title"), feed->title());
@@ -2198,6 +2198,7 @@ void DatabaseQueries::createOverwriteFeed(const QSqlDatabase& db, Feed* feed, in
   q.bindValue(QSL(":is_off"), feed->isSwitchedOff());
   q.bindValue(QSL(":is_quiet"), feed->isQuiet());
   q.bindValue(QSL(":open_articles"), feed->openArticlesDirectly());
+  q.bindValue(QSL(":is_rtl"), feed->isRTL());
   q.bindValue(QSL(":add_any_datetime_articles"), feed->addAnyDatetimeArticles());
   q.bindValue(QSL(":avoid_old_articles"), feed->avoidOldArticles());
   q.bindValue(QSL(":datetime_to_avoid"), feed->datetimeToAvoid().toMSecsSinceEpoch());

src/librssguard/database/databasequeries.h

@@ -353,6 +353,7 @@ Assignment DatabaseQueries::getFeeds(const QSqlDatabase& db,
     feed->setAutoUpdateInterval(query.value(FDS_DB_UPDATE_INTERVAL_INDEX).toInt());
     feed->setIsSwitchedOff(query.value(FDS_DB_IS_OFF_INDEX).toBool());
     feed->setIsQuiet(query.value(FDS_DB_IS_QUIET_INDEX).toBool());
+    feed->setIsRTL(query.value(FDS_DB_IS_RTL_INDEX).toBool());
     feed->setAddAnyDatetimeArticles(query.value(FDS_DB_ADD_ANY_DATETIME_ARTICLES_INDEX).toBool());
     feed->setAvoidOldArticles(query.value(FDS_DB_AVOID_OLD_ARTICLES_INDEX).toBool());
     feed->setDatetimeToAvoid(query.value(FDS_DB_DATETIME_TO_AVOID_INDEX).toDateTime());

src/librssguard/definitions/definitions.h

@@ -295,13 +295,14 @@
 #define FDS_DB_UPDATE_INTERVAL_INDEX 9
 #define FDS_DB_IS_OFF_INDEX 10
 #define FDS_DB_IS_QUIET_INDEX 11
-#define FDS_DB_ADD_ANY_DATETIME_ARTICLES_INDEX 12
+#define FDS_DB_IS_RTL_INDEX 12
-#define FDS_DB_AVOID_OLD_ARTICLES_INDEX 13
+#define FDS_DB_ADD_ANY_DATETIME_ARTICLES_INDEX 13
-#define FDS_DB_DATETIME_TO_AVOID_INDEX 14
+#define FDS_DB_AVOID_OLD_ARTICLES_INDEX 14
-#define FDS_DB_OPEN_ARTICLES_INDEX 15
+#define FDS_DB_DATETIME_TO_AVOID_INDEX 15
-#define FDS_DB_ACCOUNT_ID_INDEX 16
+#define FDS_DB_OPEN_ARTICLES_INDEX 16
-#define FDS_DB_CUSTOM_ID_INDEX 17
+#define FDS_DB_ACCOUNT_ID_INDEX 17
-#define FDS_DB_CUSTOM_DATA_INDEX 18
+#define FDS_DB_CUSTOM_ID_INDEX 18
+#define FDS_DB_CUSTOM_DATA_INDEX 19
 
 // Indexes of columns for feed models.
 #define FDS_MODEL_TITLE_INDEX 0

src/librssguard/gui/feedsview.cpp

@@ -231,6 +231,10 @@ void FeedsView::editSelectedItem() {
                           QSystemTrayIcon::MessageIcon::Warning});
   }
 
+  RootItem* selected_item = selectedItem();
+  emit itemSelected(selected_item);
+
+
   // Changes are done, unlock the update master lock.
   qApp->feedUpdateLock()->unlock();
 }

src/librssguard/gui/messagesview.cpp

@@ -516,6 +516,13 @@ void MessagesView::loadItem(RootItem* item) {
   sort(col, ord, false, true, false, true);
   m_sourceModel->loadMessages(item);
 
+  if (item->toFeed() != nullptr) {
+    if (item->toFeed()->isRTL())
+      setLayoutDirection(Qt::RightToLeft);
+    else
+      setLayoutDirection(Qt::LeftToRight);
+  }
+
   // Messages are loaded, make sure that previously
   // active message is not shown in browser.
   emit currentMessageRemoved(m_sourceModel->loadedItem());

src/librssguard/services/abstract/feed.cpp

@@ -21,8 +21,8 @@ Feed::Feed(RootItem* parent)
   : RootItem(parent), m_source(QString()), m_status(Status::Normal), m_statusString(QString()),
     m_autoUpdateType(AutoUpdateType::DefaultAutoUpdate), m_autoUpdateInterval(DEFAULT_AUTO_UPDATE_INTERVAL),
     m_lastUpdated(QDateTime::currentDateTimeUtc()), m_isSwitchedOff(false), m_isQuiet(false),
-    m_addAnyDatetimeArticles(false), m_avoidOldArticles(false), m_datetimeToAvoid(QDateTime::currentDateTime()),
+    m_isRTL(false), m_addAnyDatetimeArticles(false), m_avoidOldArticles(false), m_openArticlesDirectly(false),
-    m_openArticlesDirectly(false), m_messageFilters(QList<QPointer<MessageFilter>>()) {
+    m_datetimeToAvoid(QDateTime::currentDateTime()), m_messageFilters(QList<QPointer<MessageFilter>>()) {
   setKind(RootItem::Kind::Feed);
 }
 
@@ -48,6 +48,7 @@ Feed::Feed(const Feed& other) : RootItem(other) {
   setAvoidOldArticles(other.avoidOldArticles());
   setAvoidOldArticlesEnabled(other.isAvoidOldArticlesEnabled());
   setDatetimeToAvoid(other.datetimeToAvoid());
+  setIsRTL(other.isRTL());
   setIsSwitchedOff(other.isSwitchedOff());
   setIsQuiet(other.isQuiet());
 }
@@ -194,6 +195,14 @@ void Feed::setOpenArticlesDirectly(bool opn) {
   m_openArticlesDirectly = opn;
 }
 
+bool Feed::isRTL() const {
+  return m_isRTL;
+}
+
+void Feed::setIsRTL(bool rtl) {
+  m_isRTL = rtl;
+}
+
 bool Feed::addAnyDatetimeArticles() const {
   return m_addAnyDatetimeArticles;
 }

src/librssguard/services/abstract/feed.h

@@ -83,6 +83,9 @@ class Feed : public RootItem {
     QDateTime lastUpdated() const;
     void setLastUpdated(const QDateTime& last_updated);
 
+    bool isRTL() const;
+    void setIsRTL(bool rtl);
+
     bool addAnyDatetimeArticles() const;
     void setAddAnyDatetimeArticles(bool addAnyDatetimeArticles);
 
@@ -113,6 +116,7 @@ class Feed : public RootItem {
     bool m_isSwitchedOff;
     bool m_isQuiet;
     bool m_openArticlesDirectly;
+    bool m_isRTL;
     bool m_addAnyDatetimeArticles;
     bool m_avoidOldArticles;
     bool m_avoidOldArticlesEnabled;

src/librssguard/services/abstract/gui/formfeeddetails.cpp

@@ -49,6 +49,7 @@ void FormFeedDetails::apply() {
                                                                 .toInt()));
   m_feed->setAutoUpdateInterval(int(m_ui->m_spinAutoUpdateInterval->value()));
   m_feed->setOpenArticlesDirectly(m_ui->m_cbOpenArticlesAutomatically->isChecked());
+  m_feed->setIsRTL(m_ui->m_cbFeedRTL->isChecked());
   m_feed->setAddAnyDatetimeArticles(m_ui->m_cbAddAnyDateArticles->isChecked());
   m_feed->setAvoidOldArticles(m_ui->m_gbAvoidOldArticles->isChecked());
   m_feed->setDatetimeToAvoid(m_ui->m_dtDateTimeToAvoid->dateTime());
@@ -106,6 +107,7 @@ void FormFeedDetails::loadFeedData() {
     ->setCurrentIndex(m_ui->m_cmbAutoUpdateType->findData(QVariant::fromValue(int(m_feed->autoUpdateType()))));
   m_ui->m_spinAutoUpdateInterval->setValue(m_feed->autoUpdateInterval());
   m_ui->m_cbOpenArticlesAutomatically->setChecked(m_feed->openArticlesDirectly());
+  m_ui->m_cbFeedRTL->setChecked(m_feed->isRTL());
   m_ui->m_cbAddAnyDateArticles->setChecked(m_feed->addAnyDatetimeArticles());
   m_ui->m_gbAvoidOldArticles->setChecked(m_feed->avoidOldArticles());
   m_ui->m_gbAvoidOldArticles->setEnabled(!m_feed->addAnyDatetimeArticles());

src/librssguard/services/abstract/gui/formfeeddetails.ui

@@ -60,13 +60,20 @@
         </widget>
        </item>
        <item row="2" column="0" colspan="2">
+        <widget class="QCheckBox" name="m_cbFeedRTL">
+         <property name="text">
+          <string>Right-to-left layout</string>
+         </property>
+        </widget>
+       </item>
+       <item row="3" column="0" colspan="2">
         <widget class="Line" name="line">
          <property name="orientation">
           <enum>Qt::Horizontal</enum>
          </property>
         </widget>
        </item>
-       <item row="3" column="0" colspan="2">
+       <item row="4" column="0" colspan="2">
         <widget class="QCheckBox" name="m_cbAddAnyDateArticles">
          <property name="text">
           <string>Add articles with any date into the database</string>
@@ -76,7 +83,7 @@
          </property>
         </widget>
        </item>
-       <item row="4" column="0" colspan="2">
+       <item row="5" column="0" colspan="2">
         <widget class="QGroupBox" name="m_gbAvoidOldArticles">
          <property name="enabled">
           <bool>true</bool>

src/librssguard/services/abstract/serviceroot.cpp

@@ -384,6 +384,7 @@ QMap<QString, QVariantMap> ServiceRoot::storeCustomFeedsData() {
     feed_custom_data.insert(QSL("is_off"), feed->isSwitchedOff());
     feed_custom_data.insert(QSL("is_quiet"), feed->isQuiet());
     feed_custom_data.insert(QSL("open_articles_directly"), feed->openArticlesDirectly());
+    feed_custom_data.insert(QSL("is_rtl"), feed->isRTL()); 
     feed_custom_data.insert(QSL("add_any_datetime_articles"), feed->addAnyDatetimeArticles());
     feed_custom_data.insert(QSL("avoid_old_articles"), feed->avoidOldArticles());
     feed_custom_data.insert(QSL("datetime_to_avoid"), feed->datetimeToAvoid().toMSecsSinceEpoch());
@@ -436,6 +437,7 @@ void ServiceRoot::restoreCustomFeedsData(const QMap<QString, QVariantMap>& data,
       feed->setIsSwitchedOff(feed_custom_data.value(QSL("is_off")).toBool());
       feed->setIsQuiet(feed_custom_data.value(QSL("is_quiet")).toBool());
       feed->setOpenArticlesDirectly(feed_custom_data.value(QSL("open_articles_directly")).toBool());
+      feed->setIsRTL(feed_custom_data.value(QSL("is_rtl")).toBool());
       feed->setAddAnyDatetimeArticles(feed_custom_data.value(QSL("add_any_datetime_articles")).toBool());
       feed->setAvoidOldArticles(feed_custom_data.value(QSL("avoid_date_message")).toBool());
       feed->setDatetimeToAvoid(feed_custom_data.value(QSL("avoid_message_datetime")).toDateTime());