Update tr comments.

localization/rssguard-cs_CZ.ts

@@ -5,6 +5,7 @@
     <name>CornerButton</name>
     <message>
         <source>Open new tab</source>
+        <extracomment>Tooltip for &quot;new tab&quot; webbrowser corner button.</extracomment>
         <translation>Otevřít nový panel</translation>
     </message>
 </context>
@@ -51,10 +52,12 @@
     <name>FeedsModel</name>
     <message>
         <source>Title</source>
+        <extracomment>Title text in the feed list header.</extracomment>
         <translation>Nadpis</translation>
     </message>
     <message>
         <source>Titles of feeds/categories.</source>
+        <extracomment>Feed list header tooltips.</extracomment>
         <translation>Názvy kanálů/kategorií.</translation>
     </message>
     <message>
@@ -63,6 +66,7 @@
     </message>
     <message>
         <source>Root</source>
+        <extracomment>Name of root item of feed list which can be seen in feed add/edit dialog.</extracomment>
         <translation>Kořen</translation>
     </message>
 </context>
@@ -1532,42 +1536,52 @@ currently installed one.</source>
     <name>MessagesModel</name>
     <message>
         <source>Id</source>
+        <extracomment>Tooltip for ID of message.</extracomment>
         <translation></translation>
     </message>
     <message>
         <source>Read</source>
+        <extracomment>Tooltip for &quot;read&quot; column in msg list.</extracomment>
         <translation>Přečteno</translation>
     </message>
     <message>
         <source>Deleted</source>
+        <extracomment>Tooltip for &quot;deleted&quot; column in msg list.</extracomment>
         <translation>Smazáno</translation>
     </message>
     <message>
         <source>Important</source>
+        <extracomment>Tooltip for &quot;important&quot; column in msg list.</extracomment>
         <translation>Důležité</translation>
     </message>
     <message>
         <source>Feed</source>
+        <extracomment>Tooltip for name of feed for message.</extracomment>
         <translation>Kanál</translation>
     </message>
     <message>
         <source>Title</source>
+        <extracomment>Tooltip for title of message.</extracomment>
         <translation>Nadpis</translation>
     </message>
     <message>
         <source>Url</source>
+        <extracomment>Tooltip for url of message.</extracomment>
         <translation></translation>
     </message>
     <message>
         <source>Author</source>
+        <extracomment>Tooltip for author of message.</extracomment>
         <translation>Autor</translation>
     </message>
     <message>
         <source>Created on</source>
+        <extracomment>Tooltip for creation date of message.</extracomment>
         <translation>Vytvořeno</translation>
     </message>
     <message>
         <source>Contents</source>
+        <extracomment>Tooltip for contents of message.</extracomment>
         <translation>Obsah</translation>
     </message>
     <message>
@@ -1671,20 +1685,15 @@ currently installed one.</source>
     </message>
     <message numerus="yes">
         <source>%n unread message(s).</source>
+        <extracomment>Tooltip for &quot;unread&quot; column of feed list.
+----------
+Tooltip for &quot;unread&quot; column of feed list.</extracomment>
         <translation>
             <numerusform>%n nepřečtená zpráva.</numerusform>
             <numerusform>%n nepřečtené zprávy.</numerusform>
             <numerusform>%n nepřečtených zpráv.</numerusform>
         </translation>
     </message>
-    <message>
-        <source>ATOM 1.0</source>
-        <translation></translation>
-    </message>
-    <message>
-        <source>RSS 2.0/2.0.1</source>
-        <translation></translation>
-    </message>
     <message>
         <source>
 
@@ -1693,17 +1702,10 @@ This category does not contain any nested items.</source>
 
 Tato kategorie neobsahuje žádné podřízené položky.</translation>
     </message>
-    <message>
-        <source>RDF</source>
-        <translation></translation>
-    </message>
-    <message>
-        <source>RSS 0.91/0.92/0.93</source>
-        <translation></translation>
-    </message>
     <message>
         <source>%1 (standard category)
 %2%3</source>
+        <extracomment>Tooltip for standard feed.</extracomment>
         <translation>%1 (standardní kategorie)
 %2%3</translation>
     </message>
@@ -1713,22 +1715,27 @@ Tato kategorie neobsahuje žádné podřízené položky.</translation>
     </message>
     <message>
         <source>Access denied. Invalid username or password used.</source>
+        <extracomment>Access to MySQL server was denied.</extracomment>
         <translation>Přístup zamítnut. Nesprávne jméno či heslo.</translation>
     </message>
     <message>
         <source>Unknown error.</source>
+        <extracomment>Unknown MySQL error arised.</extracomment>
         <translation>Neznámá chyba.</translation>
     </message>
     <message>
         <source>does not use auto-update</source>
+        <extracomment>Describes feed auto-update status.</extracomment>
         <translation>nepoužívá auto-aktualizace</translation>
     </message>
     <message>
         <source>uses global settings</source>
+        <extracomment>Describes feed auto-update status.</extracomment>
         <translation>používá globální nastavení</translation>
     </message>
     <message numerus="yes">
         <source>uses specific settings (%n minute(s) to next auto-update)</source>
+        <extracomment>Describes feed auto-update status.</extracomment>
         <translation>
             <numerusform>používá specifické nastavení (%n minuta do další aktualizace)</numerusform>
             <numerusform>používá specifické nastavení (%n minuty do další aktualizace)</numerusform>
@@ -1741,6 +1748,7 @@ Tato kategorie neobsahuje žádné podřízené položky.</translation>
 
 Encoding: %4
 Auto-update status: %5</source>
+        <extracomment>Tooltip for feed.</extracomment>
         <translation>%1 (%2)
 %3
 
@@ -1753,58 +1761,72 @@ Status auto-aktualizace: %5</translation>
     </message>
     <message>
         <source>protocol error</source>
+        <extracomment>Network status.</extracomment>
         <translation>chyba protokolu</translation>
     </message>
     <message>
         <source>host not found</source>
+        <extracomment>Network status.</extracomment>
         <translation>hostitel nenalezen</translation>
     </message>
     <message>
         <source>connection refused</source>
+        <extracomment>Network status.</extracomment>
         <translation>spojení odmítnuto</translation>
     </message>
     <message>
         <source>connection timed out</source>
+        <extracomment>Network status.</extracomment>
         <translation>spojení vypršelo</translation>
     </message>
     <message>
         <source>SSL handshake failed</source>
+        <extracomment>Network status.</extracomment>
         <translation>SSL handshake selhal</translation>
     </message>
     <message>
         <source>proxy server connection refused</source>
+        <extracomment>Network status.</extracomment>
         <translation>spojení k proxy serveru odmítnuto</translation>
     </message>
     <message>
         <source>temporary failure</source>
+        <extracomment>Network status.</extracomment>
         <translation>dočasný výpadek</translation>
     </message>
     <message>
         <source>proxy authentication required</source>
+        <extracomment>Network status.</extracomment>
         <translation>proxy autentifikace selhala</translation>
     </message>
     <message>
         <source>proxy server not found</source>
+        <extracomment>Network status.</extracomment>
         <translation>proxy server nenalezen</translation>
     </message>
     <message>
         <source>success</source>
+        <extracomment>Network status.</extracomment>
         <translation>úspěch</translation>
     </message>
     <message>
         <source>uknown content</source>
+        <extracomment>Network status.</extracomment>
         <translation>neznámý obsah</translation>
     </message>
     <message>
         <source>unknown error</source>
+        <extracomment>Network status.</extracomment>
         <translation>neznámá chyba</translation>
     </message>
     <message>
         <source>authentication failed</source>
+        <extracomment>Network status.</extracomment>
         <translation>autentifikace selhala</translation>
     </message>
     <message>
         <source>content not found</source>
+        <extracomment>Network status.</extracomment>
         <translation>obsah nenalezen</translation>
     </message>
 </context>

localization/rssguard-en_GB.ts

@@ -5,6 +5,7 @@
     <name>CornerButton</name>
     <message>
         <source>Open new tab</source>
+        <extracomment>Tooltip for &quot;new tab&quot; webbrowser corner button.</extracomment>
         <translation type="unfinished"></translation>
     </message>
 </context>
@@ -51,10 +52,12 @@
     <name>FeedsModel</name>
     <message>
         <source>Title</source>
+        <extracomment>Title text in the feed list header.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Titles of feeds/categories.</source>
+        <extracomment>Feed list header tooltips.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
@@ -63,6 +66,7 @@
     </message>
     <message>
         <source>Root</source>
+        <extracomment>Name of root item of feed list which can be seen in feed add/edit dialog.</extracomment>
         <translation type="unfinished"></translation>
     </message>
 </context>
@@ -1514,42 +1518,52 @@ currently installed one.</source>
     <name>MessagesModel</name>
     <message>
         <source>Id</source>
+        <extracomment>Tooltip for ID of message.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Read</source>
+        <extracomment>Tooltip for &quot;read&quot; column in msg list.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Deleted</source>
+        <extracomment>Tooltip for &quot;deleted&quot; column in msg list.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Important</source>
+        <extracomment>Tooltip for &quot;important&quot; column in msg list.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Feed</source>
+        <extracomment>Tooltip for name of feed for message.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Title</source>
+        <extracomment>Tooltip for title of message.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Url</source>
+        <extracomment>Tooltip for url of message.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Author</source>
+        <extracomment>Tooltip for author of message.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Created on</source>
+        <extracomment>Tooltip for creation date of message.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Contents</source>
+        <extracomment>Tooltip for contents of message.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
@@ -1653,36 +1667,24 @@ currently installed one.</source>
     </message>
     <message numerus="yes">
         <source>%n unread message(s).</source>
+        <extracomment>Tooltip for &quot;unread&quot; column of feed list.
+----------
+Tooltip for &quot;unread&quot; column of feed list.</extracomment>
         <translation type="unfinished">
             <numerusform></numerusform>
             <numerusform></numerusform>
         </translation>
     </message>
-    <message>
-        <source>ATOM 1.0</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>RSS 2.0/2.0.1</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>
 
 This category does not contain any nested items.</source>
         <translation type="unfinished"></translation>
     </message>
-    <message>
-        <source>RDF</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>RSS 0.91/0.92/0.93</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>%1 (standard category)
 %2%3</source>
+        <extracomment>Tooltip for standard feed.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
@@ -1691,22 +1693,27 @@ This category does not contain any nested items.</source>
     </message>
     <message>
         <source>Access denied. Invalid username or password used.</source>
+        <extracomment>Access to MySQL server was denied.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Unknown error.</source>
+        <extracomment>Unknown MySQL error arised.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>does not use auto-update</source>
+        <extracomment>Describes feed auto-update status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>uses global settings</source>
+        <extracomment>Describes feed auto-update status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message numerus="yes">
         <source>uses specific settings (%n minute(s) to next auto-update)</source>
+        <extracomment>Describes feed auto-update status.</extracomment>
         <translation type="unfinished">
             <numerusform></numerusform>
             <numerusform></numerusform>
@@ -1718,6 +1725,7 @@ This category does not contain any nested items.</source>
 
 Encoding: %4
 Auto-update status: %5</source>
+        <extracomment>Tooltip for feed.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
@@ -1726,58 +1734,72 @@ Auto-update status: %5</source>
     </message>
     <message>
         <source>protocol error</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>host not found</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>connection refused</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>connection timed out</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>SSL handshake failed</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>proxy server connection refused</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>temporary failure</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>proxy authentication required</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>proxy server not found</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>success</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>uknown content</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>unknown error</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>authentication failed</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>content not found</source>
+        <extracomment>Network status.</extracomment>
         <translation type="unfinished"></translation>
     </message>
 </context>

localization/rssguard-nl_NL.ts

@@ -5,6 +5,7 @@
     <name>CornerButton</name>
     <message>
         <source>Open new tab</source>
+        <extracomment>Tooltip for &quot;new tab&quot; webbrowser corner button.</extracomment>
         <translation>Open nieuw tabblad</translation>
     </message>
 </context>
@@ -51,10 +52,12 @@
     <name>FeedsModel</name>
     <message>
         <source>Title</source>
+        <extracomment>Title text in the feed list header.</extracomment>
         <translation>Titel</translation>
     </message>
     <message>
         <source>Titles of feeds/categories.</source>
+        <extracomment>Feed list header tooltips.</extracomment>
         <translation>Naam van feeds/categorieën.</translation>
     </message>
     <message>
@@ -63,6 +66,7 @@
     </message>
     <message>
         <source>Root</source>
+        <extracomment>Name of root item of feed list which can be seen in feed add/edit dialog.</extracomment>
         <translation>Root</translation>
     </message>
 </context>
@@ -1535,42 +1539,52 @@ de geïnstalleerde.</translation>
     <name>MessagesModel</name>
     <message>
         <source>Id</source>
+        <extracomment>Tooltip for ID of message.</extracomment>
         <translation>ld</translation>
     </message>
     <message>
         <source>Read</source>
+        <extracomment>Tooltip for &quot;read&quot; column in msg list.</extracomment>
         <translation>Lees</translation>
     </message>
     <message>
         <source>Deleted</source>
+        <extracomment>Tooltip for &quot;deleted&quot; column in msg list.</extracomment>
         <translation>verwijder</translation>
     </message>
     <message>
         <source>Important</source>
+        <extracomment>Tooltip for &quot;important&quot; column in msg list.</extracomment>
         <translation>Belangrijk</translation>
     </message>
     <message>
         <source>Feed</source>
+        <extracomment>Tooltip for name of feed for message.</extracomment>
         <translation>Feed</translation>
     </message>
     <message>
         <source>Title</source>
+        <extracomment>Tooltip for title of message.</extracomment>
         <translation>Titel</translation>
     </message>
     <message>
         <source>Url</source>
+        <extracomment>Tooltip for url of message.</extracomment>
         <translation>Url</translation>
     </message>
     <message>
         <source>Author</source>
+        <extracomment>Tooltip for author of message.</extracomment>
         <translation>Auteur</translation>
     </message>
     <message>
         <source>Created on</source>
+        <extracomment>Tooltip for creation date of message.</extracomment>
         <translation>Gemaakt op</translation>
     </message>
     <message>
         <source>Contents</source>
+        <extracomment>Tooltip for contents of message.</extracomment>
         <translation>Inhoud</translation>
     </message>
     <message>
@@ -1674,19 +1688,14 @@ de geïnstalleerde.</translation>
     </message>
     <message numerus="yes">
         <source>%n unread message(s).</source>
+        <extracomment>Tooltip for &quot;unread&quot; column of feed list.
+----------
+Tooltip for &quot;unread&quot; column of feed list.</extracomment>
         <translation>
             <numerusform>%n ongelezen bericht.</numerusform>
             <numerusform>%n ongelezen berichten.</numerusform>
         </translation>
     </message>
-    <message>
-        <source>ATOM 1.0</source>
-        <translation>ATOM 1.0</translation>
-    </message>
-    <message>
-        <source>RSS 2.0/2.0.1</source>
-        <translation>RSS 2.0/2.0.1</translation>
-    </message>
     <message>
         <source>
 
@@ -1695,17 +1704,10 @@ This category does not contain any nested items.</source>
 
 Deze categorie bevat geen nested items.</translation>
     </message>
-    <message>
-        <source>RDF</source>
-        <translation>RDF</translation>
-    </message>
-    <message>
-        <source>RSS 0.91/0.92/0.93</source>
-        <translation>RSS 0.91/0.92/0.93</translation>
-    </message>
     <message>
         <source>%1 (standard category)
 %2%3</source>
+        <extracomment>Tooltip for standard feed.</extracomment>
         <translation>%1 (standaard categorie)
 %2%3</translation>
     </message>
@@ -1715,22 +1717,27 @@ Deze categorie bevat geen nested items.</translation>
     </message>
     <message>
         <source>Access denied. Invalid username or password used.</source>
+        <extracomment>Access to MySQL server was denied.</extracomment>
         <translation>Toegang geweigerd. Ongeldig gebruikersnaam of paswoord gebruikt.</translation>
     </message>
     <message>
         <source>Unknown error.</source>
+        <extracomment>Unknown MySQL error arised.</extracomment>
         <translation>Onbekende fout.</translation>
     </message>
     <message>
         <source>does not use auto-update</source>
+        <extracomment>Describes feed auto-update status.</extracomment>
         <translation>automatisch bijwerken niet gebruiken</translation>
     </message>
     <message>
         <source>uses global settings</source>
+        <extracomment>Describes feed auto-update status.</extracomment>
         <translation>gebruik algemene instellingen</translation>
     </message>
     <message numerus="yes">
         <source>uses specific settings (%n minute(s) to next auto-update)</source>
+        <extracomment>Describes feed auto-update status.</extracomment>
         <translation>
             <numerusform>gebruik specifieke instellingen (%n minuut voor volgende automatische update)</numerusform>
             <numerusform>gebruik specifieke instellingen (%n minuten voor volgende automatische update)</numerusform>
@@ -1742,6 +1749,7 @@ Deze categorie bevat geen nested items.</translation>
 
 Encoding: %4
 Auto-update status: %5</source>
+        <extracomment>Tooltip for feed.</extracomment>
         <translation>%1 (%2)
 %3
 
@@ -1754,58 +1762,72 @@ Status automatisch bijwerken: %5</translation>
     </message>
     <message>
         <source>protocol error</source>
+        <extracomment>Network status.</extracomment>
         <translation>protocol fout</translation>
     </message>
     <message>
         <source>host not found</source>
+        <extracomment>Network status.</extracomment>
         <translation>host niet gevonden</translation>
     </message>
     <message>
         <source>connection refused</source>
+        <extracomment>Network status.</extracomment>
         <translation>verbinding geweigerd</translation>
     </message>
     <message>
         <source>connection timed out</source>
+        <extracomment>Network status.</extracomment>
         <translation>Verbindings time-out</translation>
     </message>
     <message>
         <source>SSL handshake failed</source>
+        <extracomment>Network status.</extracomment>
         <translation>SSL handshake is mislukt</translation>
     </message>
     <message>
         <source>proxy server connection refused</source>
+        <extracomment>Network status.</extracomment>
         <translation>proxy server verbinding geweigerd</translation>
     </message>
     <message>
         <source>temporary failure</source>
+        <extracomment>Network status.</extracomment>
         <translation>tijdelijke storing</translation>
     </message>
     <message>
         <source>proxy authentication required</source>
+        <extracomment>Network status.</extracomment>
         <translation>proxy verificatie vereist</translation>
     </message>
     <message>
         <source>proxy server not found</source>
+        <extracomment>Network status.</extracomment>
         <translation>proxy server niet gevonden</translation>
     </message>
     <message>
         <source>success</source>
+        <extracomment>Network status.</extracomment>
         <translation>succes</translation>
     </message>
     <message>
         <source>uknown content</source>
+        <extracomment>Network status.</extracomment>
         <translation>onbekende inhoud</translation>
     </message>
     <message>
         <source>unknown error</source>
+        <extracomment>Network status.</extracomment>
         <translation>onbekende fout</translation>
     </message>
     <message>
         <source>authentication failed</source>
+        <extracomment>Network status.</extracomment>
         <translation>verificatie mislukt</translation>
     </message>
     <message>
         <source>content not found</source>
+        <extracomment>Network status.</extracomment>
         <translation>inhoud niet gevonden</translation>
     </message>
 </context>

src/core/databasefactory.cpp

@@ -87,9 +87,11 @@ QString DatabaseFactory::mysqlInterpretErrorCode(MySQLError error_code) {
       return QObject::tr("No MySQL server is running in the target destination.");
 
     case MySQLAccessDenied:
+      //: Access to MySQL server was denied.
       return QObject::tr("Access denied. Invalid username or password used.");
 
     default:
+      //: Unknown MySQL error arised.
       return QObject::tr("Unknown error.");
   }
 }

src/core/feedsmodel.cpp

@@ -38,10 +38,16 @@ FeedsModel::FeedsModel(QObject *parent) : QAbstractItemModel(parent) {
 
   m_rootItem = new FeedsModelRootItem();
   m_rootItem->setId(NO_PARENT_CATEGORY);
+
+  //: Name of root item of feed list which can be seen in feed add/edit dialog.
   m_rootItem->setTitle(tr("Root"));
   m_rootItem->setIcon(IconThemeFactory::instance()->fromTheme("folder-root"));
   m_countsIcon = IconThemeFactory::instance()->fromTheme("mail-mark-unread");
+
+  //: Title text in the feed list header.
   m_headerData << tr("Title");
+
+  //: Feed list header tooltips.
   m_tooltipData << tr("Titles of feeds/categories.") <<
                    tr("Counts of unread/all meesages.");
 

src/core/feedsmodelfeed.cpp

@@ -52,17 +52,17 @@ int FeedsModelFeed::countOfUnreadMessages() const {
 QString FeedsModelFeed::typeToString(FeedsModelFeed::Type type) {
   switch (type) {
     case StandardAtom10:
-      return QObject::tr("ATOM 1.0");
+      return "ATOM 1.0";
 
     case StandardRdf:
-      return QObject::tr("RDF");
+      return "RDF";
 
     case StandardRss0X:
-      return QObject::tr("RSS 0.91/0.92/0.93");
+      return "RSS 0.91/0.92/0.93";
 
     case StandardRss2X:
     default:
-      return QObject::tr("RSS 2.0/2.0.1");
+      return "RSS 2.0/2.0.1";
   }
 }
 

src/core/feedsmodelstandardcategory.cpp

@@ -40,6 +40,7 @@ QVariant FeedsModelStandardCategory::data(int column, int role) const {
   switch (role) {
     case Qt::ToolTipRole:
       if (column == FDS_MODEL_TITLE_INDEX) {
+        //: Tooltip for standard feed.
         return QObject::tr("%1 (standard category)\n"
                            "%2%3").arg(m_title,
                                        m_description,
@@ -48,6 +49,7 @@ QVariant FeedsModelStandardCategory::data(int column, int role) const {
                                          "");
       }
       else if (column == FDS_MODEL_COUNTS_INDEX) {
+        //: Tooltip for "unread" column of feed list.
         return QObject::tr("%n unread message(s).", "", countOfUnreadMessages());
       }
       else {

src/core/feedsmodelstandardfeed.cpp

@@ -227,15 +227,18 @@ QVariant FeedsModelStandardFeed::data(int column, int role) const {
 
         switch (m_autoUpdateType) {
           case DontAutoUpdate:
+            //: Describes feed auto-update status.
             auto_update_string = QObject::tr("does not use auto-update");
             break;
 
           case DefaultAutoUpdate:
+            //: Describes feed auto-update status.
             auto_update_string = QObject::tr("uses global settings");
             break;
 
           case SpecificAutoUpdate:
           default:
+            //: Describes feed auto-update status.
             auto_update_string = QObject::tr("uses specific settings "
                                              "(%n minute(s) to next auto-update)",
                                              0,
@@ -243,6 +246,7 @@ QVariant FeedsModelStandardFeed::data(int column, int role) const {
             break;
         }
 
+        //: Tooltip for feed.
         return QObject::tr("%1 (%2)\n"
                            "%3\n\n"
                            "Encoding: %4\n"
@@ -253,6 +257,7 @@ QVariant FeedsModelStandardFeed::data(int column, int role) const {
                                                          auto_update_string);
       }
       else if (column == FDS_MODEL_COUNTS_INDEX) {
+        //: Tooltip for "unread" column of feed list.
         return QObject::tr("%n unread message(s).", 0, countOfUnreadMessages());
       }
       else {

src/core/messagesmodel.cpp

@@ -111,9 +111,17 @@ Message MessagesModel::messageAt(int row_index) const {
 }
 
 void MessagesModel::setupHeaderData() {
-  m_headerData << tr("Id") << tr("Read") << tr("Deleted") << tr("Important") <<
+  m_headerData << /*: Tooltip for ID of message.*/ tr("Id") <<
-                  tr("Feed") << tr("Title") << tr("Url") << tr("Author") <<
+                  /*: Tooltip for "read" column in msg list.*/ tr("Read") <<
-                  tr("Created on") << tr("Contents");
+                  /*: Tooltip for "deleted" column in msg list.*/ tr("Deleted") <<
+                  /*: Tooltip for "important" column in msg list.*/ tr("Important") <<
+                  /*: Tooltip for name of feed for message.*/ tr("Feed") <<
+                  /*: Tooltip for title of message.*/ tr("Title") <<
+                  /*: Tooltip for url of message.*/ tr("Url") <<
+                  /*: Tooltip for author of message.*/ tr("Author") <<
+                  /*: Tooltip for creation date of message.*/ tr("Created on") <<
+                  /*: Tooltip for contents of message.*/ tr("Contents");
+
   m_tooltipData << tr("Id of the message.") << tr("Is message read?") <<
                    tr("Is message deleted?") << tr("Is message important?") <<
                    tr("Id of feed which this message belongs to.") <<

src/core/networkfactory.cpp

@@ -32,48 +32,62 @@ QString NetworkFactory::networkErrorText(QNetworkReply::NetworkError error_code)
   switch (error_code) {
     case QNetworkReply::ProtocolUnknownError:
     case QNetworkReply::ProtocolFailure:
+      //: Network status.
       return QObject::tr("protocol error");
 
     case QNetworkReply::HostNotFoundError:
+      //: Network status.
       return QObject::tr("host not found");
 
     case QNetworkReply::RemoteHostClosedError:
     case QNetworkReply::ConnectionRefusedError:
+      //: Network status.
       return QObject::tr("connection refused");
 
     case QNetworkReply::TimeoutError:
     case QNetworkReply::ProxyTimeoutError:
+      //: Network status.
       return QObject::tr("connection timed out");
 
     case QNetworkReply::SslHandshakeFailedError:
+      //: Network status.
       return QObject::tr("SSL handshake failed");
 
     case QNetworkReply::ProxyConnectionClosedError:
     case QNetworkReply::ProxyConnectionRefusedError:
+      //: Network status.
       return QObject::tr("proxy server connection refused");
 
     case QNetworkReply::TemporaryNetworkFailureError:
+      //: Network status.
       return QObject::tr("temporary failure");
 
     case QNetworkReply::AuthenticationRequiredError:
+      //: Network status.
       return QObject::tr("authentication failed");
 
     case QNetworkReply::ProxyAuthenticationRequiredError:
+      //: Network status.
       return QObject::tr("proxy authentication required");
 
     case QNetworkReply::ProxyNotFoundError:
+      //: Network status.
       return QObject::tr("proxy server not found");
 
     case QNetworkReply::NoError:
+      //: Network status.
       return QObject::tr("success");
 
     case QNetworkReply::UnknownContentError:
+      //: Network status.
       return QObject::tr("uknown content");
 
     case QNetworkReply::ContentNotFoundError:
+      //: Network status.
       return QObject::tr("content not found");
 
     default:
+      //: Network status.
       return QObject::tr("unknown error");
   }
 }

src/gui/cornerbutton.cpp

@@ -21,6 +21,7 @@
 
 
 CornerButton::CornerButton(QWidget *parent) : QToolButton(parent) {
+  //: Tooltip for "new tab" webbrowser corner button.
   setToolTip(tr("Open new tab"));
   setAutoRaise(true);
   setIcon(IconThemeFactory::instance()->fromTheme("list-add"));