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livetrax/libs/canvas/pixbuf.cc

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/*
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/cairomm.h>
#include <gdkmm/general.h>
#include "canvas/pixbuf.h"
using namespace std;
using namespace ArdourCanvas;
Pixbuf::Pixbuf (Canvas* c)
: Item (c)
{
}
Pixbuf::Pixbuf (Item* parent)
: Item (parent)
{
}
void
Pixbuf::render (Rect const & /*area*/, Cairo::RefPtr<Cairo::Context> context) const
{
Gdk::Cairo::set_source_pixbuf (context, _pixbuf, 0, 0);
context->paint ();
}
void
Pixbuf::compute_bounding_box () const
{
if (_pixbuf) {
_bounding_box = boost::optional<Rect> (Rect (0, 0, _pixbuf->get_width(), _pixbuf->get_height()));
} else {
_bounding_box = boost::optional<Rect> ();
}
_bounding_box_dirty = false;
}
void
Pixbuf::set (Glib::RefPtr<Gdk::Pixbuf> pixbuf)
{
begin_change ();
_pixbuf = pixbuf;
_bounding_box_dirty = true;
end_change ();
}
Glib::RefPtr<Gdk::Pixbuf>
Pixbuf::pixbuf() {
return _pixbuf;
}