OMG -> Better now.

src/core/messagesmodel.cpp

@@ -79,6 +79,12 @@ void MessagesModel::loadMessages(const QList<int> feed_ids) {
   qDebug("Loading messages from feeds: %s.", qPrintable(assembled_ids));
 }
 
+void MessagesModel::filterMessages(MessagesModel::DisplayFilter filter) {
+  m_filter = filter;
+  emit layoutAboutToBeChanged();
+  emit layoutChanged();
+}
+
 QStringList MessagesModel::textualFeeds() const {
   QStringList stringy_ids;
   stringy_ids.reserve(m_currentFeeds.size());
@@ -171,6 +177,25 @@ QVariant MessagesModel::data(const QModelIndex &idx, int role) const {
             m_normalFont :
             m_boldFont;
 
+    case Qt::ForegroundRole:
+      switch (m_filter) {
+        case DisplayImportant:
+          return QSqlTableModel::data(index(idx.row(),
+                                            MSG_DB_IMPORTANT_INDEX)).toInt() == 1 ?
+                QColor(Qt::blue) :
+                QVariant();
+
+        case DisplayUnread:
+          return QSqlTableModel::data(index(idx.row(),
+                                            MSG_DB_READ_INDEX)).toInt() == 0 ?
+                QColor(Qt::blue) :
+                QVariant();
+
+        case DisplayAll:
+        default:
+          return QVariant();
+      }
+
     case Qt::DecorationRole: {
       int index_column = idx.column();
 

src/core/messagesmodel.h

@@ -104,6 +104,8 @@ class MessagesModel : public QSqlTableModel {
     // Loads messages of given feeds.
     void loadMessages(const QList<int> feed_ids);
 
+    void filterMessages(DisplayFilter filter);
+
   signals:
     // Emitted if some persistent change is made which affects
     // count of "unread/all" messages.

src/gui/feedmessageviewer.cpp

@@ -197,8 +197,8 @@ void FeedMessageViewer::createConnections() {
   // Filtering & searching.
   connect(m_toolBarMessages, SIGNAL(messageSearchPatternChanged(QString)),
           m_messagesView, SLOT(searchMessages(QString)));
-  /*connect(m_toolBarMessages, SIGNAL(messageFilterChanged(MessagesModel::DisplayFilter)),
+  connect(m_toolBarMessages, SIGNAL(messageFilterChanged(MessagesModel::DisplayFilter)),
-          m_messagesView, SLOT(filterMessages(MessagesModel::DisplayFilter)));*/
+          m_messagesView, SLOT(filterMessages(MessagesModel::DisplayFilter)));
 
   // Message changers.
   connect(m_messagesView, SIGNAL(currentMessagesRemoved()),

src/gui/messagestoolbar.cpp

@@ -25,13 +25,13 @@ MessagesToolBar::MessagesToolBar(const QString &title, QWidget *parent)
   m_actionSearchMessages->setProperty("type", SEACRH_MESSAGES_ACTION_NAME);
   m_actionSearchMessages->setProperty("name", tr("Message search box"));
 
-  m_menuFilterMessages = new QMenu(tr("Menu for filtering messages"), this);
+  m_menuFilterMessages = new QMenu(tr("Menu for highlighting messages"), this);
   m_menuFilterMessages->addAction(IconFactory::instance()->fromTheme("mail-mark-read"),
-                                  tr("Display all messages"))->setData(QVariant::fromValue(MessagesModel::DisplayAll));
+                                  tr("No extra highlighting"))->setData(QVariant::fromValue(MessagesModel::DisplayAll));
   m_menuFilterMessages->addAction(IconFactory::instance()->fromTheme("mail-mark-unread"),
-                                  tr("Display unread messages"))->setData(QVariant::fromValue(MessagesModel::DisplayUnread));
+                                  tr("Highlight unread messages"))->setData(QVariant::fromValue(MessagesModel::DisplayUnread));
   m_menuFilterMessages->addAction(IconFactory::instance()->fromTheme("mail-mark-favorite"),
-                                  tr("Display important messages"))->setData(QVariant::fromValue(MessagesModel::DisplayImportant));
+                                  tr("Highlight important messages"))->setData(QVariant::fromValue(MessagesModel::DisplayImportant));
 
   m_btnFilterMessages = new QToolButton(this);
   m_btnFilterMessages->setToolTip(tr("Display all messages"));
@@ -42,7 +42,7 @@ MessagesToolBar::MessagesToolBar(const QString &title, QWidget *parent)
   m_actionFilterMessages = new QWidgetAction(this);
   m_actionFilterMessages->setDefaultWidget(m_btnFilterMessages);
   m_actionFilterMessages->setProperty("type", FILTER_ACTION_NAME);
-  m_actionFilterMessages->setProperty("name", tr("Message filter"));
+  m_actionFilterMessages->setProperty("name", tr("Message highlighter"));
 
   // Update right margin of filter textbox.
   QMargins margins = contentsMargins();

src/gui/messagesview.cpp

@@ -411,6 +411,10 @@ void MessagesView::searchMessages(const QString &pattern) {
   }
 }
 
+void MessagesView::filterMessages(MessagesModel::DisplayFilter filter) {
+  m_sourceModel->filterMessages(filter);
+}
+
 void MessagesView::adjustColumns() {
   if (header()->count() > 0 && !m_columnsAdjusted) {
     m_columnsAdjusted = true;

src/gui/messagesview.h

@@ -78,6 +78,7 @@ class MessagesView : public QTreeView {
 
     // Searchs the visible message according to given pattern.
     void searchMessages(const QString &pattern);
+    void filterMessages(MessagesModel::DisplayFilter filter);
 
   protected slots:
     // Marks given indexes as selected.