2 Copyright (C) 2014 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include "pbd/compose.h"
23 #include "canvas/debug.h"
24 #include "canvas/scroll_group.h"
27 using namespace ArdourCanvas;
29 ScrollGroup::ScrollGroup (Group* parent, ScrollSensitivity s)
31 , _scroll_sensitivity (s)
35 ScrollGroup::ScrollGroup (Group* parent, Duple position, ScrollSensitivity s)
36 : Group (parent, position)
37 , _scroll_sensitivity (s)
42 ScrollGroup::scroll_to (Duple const& d)
44 if (_scroll_sensitivity & ScrollsHorizontally) {
45 _scroll_offset.x = d.x;
48 if (_scroll_sensitivity & ScrollsVertically) {
49 _scroll_offset.y = d.y;
54 ScrollGroup::covers_canvas (Duple const& d) const
56 boost::optional<Rect> r = bounding_box ();
62 return r->contains (d);
66 ScrollGroup::covers_window (Duple const& d) const
68 boost::optional<Rect> r = bounding_box ();
74 Rect w = r->translate (-_scroll_offset);
76 return w.contains (d);