LOK: Calc: missing invalidate when ending larger-than-cell edit text

- reason: when text content goes further than the cell border the
output area of the edit view is grown (extended to an adjacent cell),
on the contrary the output area of edit views used only for
invalidating windows of other view shells is never updated, so, in
other views, only the tile where the edit cell is placed is
invalidated;

- solution: instead of adding fake edit views for invalidation porpuse
(and having to updated the output area of each of them when required),
the new solution provides each new edit view, created on cell editing,
with a set of `foreign` windows related to other views, they are added
and removed to this collection owned by an edit view still using the
ScExtraEditViewManager, which has been in turn simplified; when
EdiEngine::UpdateViews is invoked not only the window where the edit
view lives is invalidated but also all `foreign` windows in the owned
set;

- note: ScTiledRenderingTest::testTextEditViewInvalidations unit test
has been enhanced in order to test correct invalidation when text
content goes out of the starting tile.

Change-Id: Id223fb1a032d3b18d2cf70df31f704abd245b3ac
Reviewed-on: https://gerrit.libreoffice.org/29625
Reviewed-by: Marco Cecchetti <mrcekets@gmail.com>
Tested-by: Marco Cecchetti <mrcekets@gmail.com>
Reviewed-on: https://gerrit.libreoffice.org/29658

1 files changed, 9 insertions, 1 deletions

diff --git a/include/editeng/editview.hxx b/include/editeng/editview.hxx
index 0f3c2de9bba8..b66486dcb8f3 100644
--- a/include/editeng/editview.hxx
+++ b/include/editeng/editview.hxx
@@ -85,6 +85,9 @@ class EDITENG_DLLPUBLIC EditView
     friend class ImpEditEngine;
     friend class EditSelFunctionSet;
 
+public:
+    typedef std::vector<VclPtr<vcl::Window>> OutWindowSet;
+
 public: // Needed for Undo
     ImpEditView*    GetImpEditView() const      { return pImpEditView; }
     ImpEditEngine*  GetImpEditEngine() const;
@@ -104,7 +107,12 @@ public:
     EditEngine*     GetEditEngine() const;
 
     void            SetWindow( vcl::Window* pWin );
-    vcl::Window*         GetWindow() const;
+    vcl::Window*    GetWindow() const;
+
+    OutWindowSet&   GetOtherViewWindows();
+    bool            HasOtherViewWindow( vcl::Window* pWin );
+    bool            AddOtherViewWindow( vcl::Window* pWin );
+    bool            RemoveOtherViewWindow( vcl::Window* pWin );
 
     void            Paint( const Rectangle& rRect, OutputDevice* pTargetDevice = nullptr );
     void            Invalidate();