# HG changeset patch
# User Rik <rik@octave.org>
# Date 1578010086 28800
# Node ID 33219a1a613368babf9389cff0ee24fb4dcf8a93
# Parent  bfa80cf7c1db0d79117c70d33341e6af40ea80b2
Allow Qt selection rectangle to be slightly larger than axes for ease of use (patch #9763)

* Canvas.cc (select_object): Use Qt adjust() to expand selection bounding box
to be 20 pixels greater than axes area.

diff -r bfa80cf7c1db -r 33219a1a6133 libgui/graphics/Canvas.cc
--- a/libgui/graphics/Canvas.cc	Fri Jan 03 00:22:04 2020 +0100
+++ b/libgui/graphics/Canvas.cc	Thu Jan 02 16:08:06 2020 -0800
@@ -422,6 +422,10 @@
                 Matrix bb = it->get_properties ().get_boundingbox (true);
                 QRectF r (bb(0), bb(1), bb(2), bb(3));
 
+                // Allow a rectangle (e.g., Zoom box) to be slightly outside
+                // the axes and still select it.
+                r.adjust (-20, -20, 20, 20);
+
 #if defined (HAVE_QMOUSEEVENT_LOCALPOS)
                 bool rect_contains_pos = r.contains (event->localPos ());
 #else