[LyX/2.2.x] Row::Element::x2pos: go to nearest point also over insets

[Jean-Marc Lasgouttes]

commit b82137ef185d95505180f39e1d8d67a9ca3a4f49
Author: Jean-Marc Lasgouttes <lasgout...@lyx.org>
Date:   Thu Apr 6 15:13:24 2017 +0200

    Row::Element::x2pos: go to nearest point also over insets
    
    getPosNearX, which is the only user of x2pos, should always return the
    nearest position.
    
    In editXY, there is a need to return the position where the inset
    stands, but it is done using checkInsetHit.
    
    Fixes part of bug #10569.
    
    (cherry picked from commit 8769c0fb750a8c46e6f053c5f73b3991393dcd73)
    (cherry picked from commit 20696ecb7ee335dedcc8a1b0d24e4cc56736d81f)
---
 src/Row.cpp |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/src/Row.cpp b/src/Row.cpp
index f19a40b..662b5dc 100644
--- a/src/Row.cpp
+++ b/src/Row.cpp
@@ -99,14 +99,13 @@ pos_type Row::Element::x2pos(int &x) const
        case SPACE:
                // those elements contain only one position. Round to
                // the closest side.
-               if (x > full_width()) {
+               if (x > (full_width() + 1) / 2) {
                        x = int(full_width());
                        i = !isRTL();
                } else {
                        x = 0;
                        i = isRTL();
                }
-
        }
        //lyxerr << "=> p=" << pos + i << " x=" << x << endl;
        return pos + i;