670938c8c4
Add a new scoped cursor system that makes it much harder to screw up and end up with stick cursors and so on.
63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
/*
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Copyright (C) 2014 Paul Davis
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Author: David Robillard
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <pbd/error.h>
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#include "editor.h"
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#include "cursor_context.h"
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CursorContext::CursorContext(Editor& editor, Gdk::Cursor* cursor)
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: _editor(editor)
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, _index(editor.push_canvas_cursor(cursor))
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{}
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CursorContext::~CursorContext()
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{
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if (_index == _editor._cursor_stack.size() - 1) {
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_editor.pop_canvas_cursor();
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} else {
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_editor._cursor_stack[_index] = NULL;
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}
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}
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CursorContext::Handle
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CursorContext::create(Editor& editor, Gdk::Cursor* cursor)
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{
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return CursorContext::Handle(new CursorContext(editor, cursor));
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}
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void
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CursorContext::change(Gdk::Cursor* cursor)
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{
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_editor._cursor_stack[_index] = cursor;
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if (_index == _editor._cursor_stack.size() - 1) {
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_editor.set_canvas_cursor(cursor);
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}
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}
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void
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CursorContext::set(Handle* handle, Editor& editor, Gdk::Cursor* cursor)
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{
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if (*handle) {
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(*handle)->change(cursor);
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} else {
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*handle = CursorContext::create(editor, cursor);
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}
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}
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