diff options
author | David Robillard <drobilla@leibniz.local> | 2014-12-20 01:11:28 -0500 |
---|---|---|
committer | David Robillard <drobilla@leibniz.local> | 2014-12-20 01:13:25 -0500 |
commit | 670938c8c455f2ded443d0ea222ed1cd07ecc528 (patch) | |
tree | 9c58aae398dafb1eb2d8b106a91130c27f88991f /gtk2_ardour/cursor_context.cc | |
parent | 5d8021bf44c066ad9b5ee4e8ab824267824be738 (diff) |
Fix various cursor problems.
Add a new scoped cursor system that makes it much harder to screw up and end up
with stick cursors and so on.
Diffstat (limited to 'gtk2_ardour/cursor_context.cc')
-rw-r--r-- | gtk2_ardour/cursor_context.cc | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/gtk2_ardour/cursor_context.cc b/gtk2_ardour/cursor_context.cc new file mode 100644 index 0000000000..fed9460018 --- /dev/null +++ b/gtk2_ardour/cursor_context.cc @@ -0,0 +1,62 @@ +/* + Copyright (C) 2014 Paul Davis + Author: David Robillard + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include <pbd/error.h> + +#include "editor.h" +#include "cursor_context.h" + +CursorContext::CursorContext(Editor& editor, Gdk::Cursor* cursor) + : _editor(editor) + , _index(editor.push_canvas_cursor(cursor)) +{} + +CursorContext::~CursorContext() +{ + if (_index == _editor._cursor_stack.size() - 1) { + _editor.pop_canvas_cursor(); + } else { + _editor._cursor_stack[_index] = NULL; + } +} + +CursorContext::Handle +CursorContext::create(Editor& editor, Gdk::Cursor* cursor) +{ + return CursorContext::Handle(new CursorContext(editor, cursor)); +} + +void +CursorContext::change(Gdk::Cursor* cursor) +{ + _editor._cursor_stack[_index] = cursor; + if (_index == _editor._cursor_stack.size() - 1) { + _editor.set_canvas_cursor(cursor); + } +} + +void +CursorContext::set(Handle* handle, Editor& editor, Gdk::Cursor* cursor) +{ + if (*handle) { + (*handle)->change(cursor); + } else { + *handle = CursorContext::create(editor, cursor); + } +} |