Related tdf#124263 Make sure sidebar is wide enough for content

If panel's requested minimal size is smaller than current sidebar width,
enlarge the sidebar to fit the content.

Change-Id: I9baa4ef6c01d5563951d4df0d939883fce02e87b
Reviewed-on: https://gerrit.libreoffice.org/69561
Tested-by: Jenkins
Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>

sfx2/source/sidebar/SidebarController.cxx

@@ -1216,9 +1216,16 @@ void SidebarController::RestrictWidth (sal_Int32 nWidth)
     {
         const sal_uInt16 nId (pSplitWindow->GetItemId(mpParentWindow.get()));
         const sal_uInt16 nSetId (pSplitWindow->GetSet(nId));
+        const sal_Int32 nRequestedWidth
+            = (TabBar::GetDefaultWidth() + nWidth) * mpTabBar->GetDPIScaleFactor();
+
+        // Make sure the sidebar is wide enough to fit the requested content
+        if (pSplitWindow->GetSizePixel().Width() < nRequestedWidth)
+            SetChildWindowWidth(nRequestedWidth);
+
         pSplitWindow->SetItemSizeRange(
             nSetId,
-            Range(TabBar::GetDefaultWidth() * mpTabBar->GetDPIScaleFactor() + nWidth,
+            Range(nRequestedWidth,
                   getMaximumWidth() * mpTabBar->GetDPIScaleFactor()));
     }
 }

test/source/sheet/xviewsplitable.cxx

@@ -23,12 +23,12 @@ void XViewSplitable::testSplit()
     uno::Reference< sheet::XViewSplitable > xViewSplitable(init(), UNO_QUERY_THROW);
     CPPUNIT_ASSERT_MESSAGE("View is already split", !xViewSplitable->getIsWindowSplit());
 
-    xViewSplitable->splitAtPosition(101, 51);
+    xViewSplitable->splitAtPosition(90, 51);
 
     CPPUNIT_ASSERT_MESSAGE("View wasn't split", xViewSplitable->getIsWindowSplit());
 
     CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong horizontal pixel position",
-                                 sal_Int32(101), xViewSplitable->getSplitHorizontal());
+                                 sal_Int32(90), xViewSplitable->getSplitHorizontal());
     CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong vertical pixel position",
                                  sal_Int32(51), xViewSplitable->getSplitVertical());