Add a playlistlist view with a helper text

src/playlist/playlistlistview.cpp

@@ -0,0 +1,45 @@
+/* This file is part of Clementine.
+   Copyright 2013, David Sansome <me@davidsansome.com>
+
+   Clementine is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Clementine is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "playlistlistview.h"
+
+#include <QPainter>
+
+PlaylistListView::PlaylistListView(QWidget* parent)
+  : AutoExpandingTreeView(parent)
+{
+}
+
+
+void PlaylistListView::paintEvent(QPaintEvent* event) {
+  if (model()->rowCount() <= 0) {
+    QPainter p(viewport());
+    QRect rect(viewport()->rect());
+
+    p.setPen(palette().color(QPalette::Disabled, QPalette::Text));
+
+    QFont bold_font;
+    bold_font.setBold(true);
+    p.setFont(bold_font);
+
+    p.drawText(rect, Qt::AlignHCenter | Qt::TextWordWrap, tr("\n\n"
+        "You can favorite playlists by clicking the star icon next to a playlist name\n\n"
+        "Favorited playlists will be saved here"));
+  } else {
+    AutoExpandingTreeView::paintEvent(event);
+  }
+}

src/playlist/playlistlistview.h

@@ -0,0 +1,30 @@
+/* This file is part of Clementine.
+   Copyright 2013, David Sansome <me@davidsansome.com>
+
+   Clementine is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Clementine is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "widgets/autoexpandingtreeview.h"
+
+class PlaylistListView : public AutoExpandingTreeView {
+  Q_OBJECT
+
+ public:
+  PlaylistListView(QWidget* parent = NULL);
+  ~PlaylistListView() {}
+
+ protected:
+  // QWidget
+  void paintEvent(QPaintEvent* event);
+};