sc tiled editing: Implement long-touch to select word in overflowing text.

Normally, the text overflowing from other cells is completely ignored by Calc,
and the user always works with the underlying cells.

On Android / mobile, it is though more natural to be able to select the text
directly; so implement a compromise:

* tap places the text cursor, so that the user can write into the
cells hidden by the text too
* long-tap selects the word in the text, even if the text 'just' overflows
from another cell

Change-Id: Ibe8666301ff1df0414c0206c1f3336842485433b

1 files changed, 8 insertions, 0 deletions

diff --git a/sc/source/ui/inc/gridwin.hxx b/sc/source/ui/inc/gridwin.hxx
index 259844ebfd35..0221e601b8ae 100644
--- a/sc/source/ui/inc/gridwin.hxx
+++ b/sc/source/ui/inc/gridwin.hxx
@@ -278,6 +278,14 @@ class ScGridWindow : public vcl::Window, public DropTargetHelper, public DragSou
     sal_uInt16          HitPageBreak( const Point& rMouse, ScRange* pSource = NULL,
                                     SCCOLROW* pBreak = NULL, SCCOLROW* pPrev = NULL );
 
+    /** The cell may be covered by text that overflows from a previous cell.
+
+        @return if true, the given cell is covered by (overflowing) text and
+        rTextStartPosX returns the column where the text that overflows
+        starts.
+    */
+    bool            IsCellCoveredByText(SCsCOL nPosX, SCsROW nPosY, SCTAB nTab, SCsCOL &rTextStartPosX);
+
     void            PasteSelection( const Point& rPosPixel );
 
     void            SelectForContextMenu( const Point& rPosPixel, SCsCOL nCellX, SCsROW nCellY );