zoom_in_shortcut_ = new QShortcut(QKeySequence(Qt::Key_Plus), this, SLOT(on_zoom_in_shortcut_triggered()));
zoom_in_shortcut_->setAutoRepeat(false);
+ zoom_in_shortcut_2_ = new QShortcut(QKeySequence(Qt::Key_Up), this, SLOT(on_zoom_in_shortcut_triggered()));
+
zoom_out_shortcut_ = new QShortcut(QKeySequence(Qt::Key_Minus), this, SLOT(on_zoom_out_shortcut_triggered()));
zoom_out_shortcut_->setAutoRepeat(false);
+ zoom_out_shortcut_2_ = new QShortcut(QKeySequence(Qt::Key_Down), this, SLOT(on_zoom_out_shortcut_triggered()));
+
home_shortcut_ = new QShortcut(QKeySequence(Qt::Key_Home), this, SLOT(on_scroll_to_start_triggered()));
home_shortcut_->setAutoRepeat(false);