From a05f041470f90e8e2a3cd1190a435821376ee1a8 Mon Sep 17 00:00:00 2001
From: Pavel Sanda <sanda@lyx.org>
Date: Mon, 11 Feb 2008 23:52:25 +0000
Subject: [PATCH] ui-toggle lfun tweaks.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@22950 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/LyXAction.cpp             |  1 +
 src/frontends/qt4/GuiView.cpp | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/src/LyXAction.cpp b/src/LyXAction.cpp
index ac3c906f9d..321d38f50f 100644
--- a/src/LyXAction.cpp
+++ b/src/LyXAction.cpp
@@ -1109,6 +1109,7 @@ void LyXAction::init()
  * \li Syntax: ui-toggle <statusbar|menubar|frame|fullscreen>
  * \li Params: statusbar  : Toggle visibility of the statusbar.\n
                menubar    : Toggle visibility of the menubar.\n
+	       scrollbar  : Toggle visibility of the scrollbar.\n
 	       frame      : Toggle visibility of the frames around editing window.\n
 	       fullscreen : Toggle fullscreen mode. This also covers calling the
 	                    previous functions. However #LFUN_TOOLBAR_TOGGLE for the
diff --git a/src/frontends/qt4/GuiView.cpp b/src/frontends/qt4/GuiView.cpp
index ffda79e6d7..17fa83bd29 100644
--- a/src/frontends/qt4/GuiView.cpp
+++ b/src/frontends/qt4/GuiView.cpp
@@ -84,6 +84,7 @@
 #include <QTimer>
 #include <QToolBar>
 #include <QUrl>
+#include <QScrollBar>
 
 #include <boost/assert.hpp>
 #include <boost/bind.hpp>
@@ -1815,6 +1816,18 @@ bool GuiView::dispatch(FuncRequest const & cmd)
 void GuiView::lfunUiToggle(FuncRequest const & cmd)
 {
 	string const arg = cmd.getArg(0);
+	if (arg == "scrollbar") {
+		// hide() is of no help
+		if (d.current_work_area_->verticalScrollBarPolicy() ==
+			Qt::ScrollBarAlwaysOff)
+
+			d.current_work_area_->setVerticalScrollBarPolicy(
+				Qt::ScrollBarAsNeeded);
+		else
+			d.current_work_area_->setVerticalScrollBarPolicy(
+				Qt::ScrollBarAlwaysOff);
+		return;
+	}
 	if (arg == "statusbar") {
 		statusBar()->setVisible(!statusBar()->isVisible());
 		return;