tdf#87009 Add a tooltip to the sidebar settings button

Change-Id: I6332e9c7c98f87885f40f4d99224cccfe582029c

include/sfx2/sidebar/Sidebar.hrc

@@ -56,5 +56,6 @@
 
 #define SFX_STR_SIDEBAR_MORE_OPTIONS                (RID_SFX_SIDEBAR_START +  1)
 #define SFX_STR_SIDEBAR_CLOSE_DECK                  (RID_SFX_SIDEBAR_START +  2)
+#define SFX_STR_SIDEBAR_SETTINGS                    (RID_SFX_SIDEBAR_START +  3)
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

sfx2/source/sidebar/Sidebar.src

@@ -170,5 +170,9 @@ String SFX_STR_SIDEBAR_CLOSE_DECK
     Text [en-US] = "Close Sidebar Deck";
 };
 
+String SFX_STR_SIDEBAR_SETTINGS
+{
+    Text [en-US] = "Sidebar Settings";
+};
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

sfx2/source/sidebar/TabBar.cxx

@@ -25,9 +25,11 @@
 #include <sfx2/sidebar/Theme.hxx>
 #include <sfx2/sidebar/Tools.hxx>
 #include <sfx2/sidebar/FocusManager.hxx>
-
 #include <sfx2/sidebar/SidebarController.hxx>
 
+#include <sfx2/sfxresid.hxx>
+#include <sfx2/sidebar/Sidebar.hrc>
+
 #include <vcl/gradient.hxx>
 #include <vcl/image.hxx>
 #include <vcl/wrkwin.hxx>
@@ -60,6 +62,7 @@ TabBar::TabBar(vcl::Window* pParentWindow,
 
     mpMenuButton->SetModeImage(Theme::GetImage(Theme::Image_TabBarMenu));
     mpMenuButton->SetClickHdl(LINK(this, TabBar, OnToolboxClicked));
+    mpMenuButton->SetQuickHelpText(SFX2_RESSTR(SFX_STR_SIDEBAR_SETTINGS));
     Layout();
 
 #ifdef DEBUG