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livetrax/libs/canvas/outline.cc

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C++

/*
Copyright (C) 2011-2013 Paul Davis
Author: Carl Hetherington <cth@carlh.net>
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 <cairomm/context.h>
#include "pbd/compose.h"
#include "pbd/convert.h"
#include "ardour/utils.h"
#include "canvas/outline.h"
#include "canvas/utils.h"
#include "canvas/debug.h"
using namespace ArdourCanvas;
Outline::Outline (Group* parent)
: Item (parent)
, _outline_color (0x000000ff)
, _outline_width (0.5)
, _outline (true)
{
}
void
Outline::set_outline_color (Color color)
{
begin_visual_change ();
_outline_color = color;
end_visual_change ();
}
void
Outline::set_outline_width (Distance width)
{
begin_change ();
_outline_width = width;
_bounding_box_dirty = true;
end_change ();
DEBUG_TRACE (PBD::DEBUG::CanvasItemsDirtied, "canvas item dirty: outline width change\n");
}
void
Outline::set_outline (bool outline)
{
begin_change ();
_outline = outline;
_bounding_box_dirty = true;
end_change ();
}
void
Outline::setup_outline_context (Cairo::RefPtr<Cairo::Context> context) const
{
set_source_rgba (context, _outline_color);
context->set_line_width (_outline_width);
}