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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 "ardour/utils.h"
#include "pbd/compose.h"
#include "pbd/convert.h"
#include "canvas/fill.h"
#include "canvas/utils.h"
using namespace std;
using namespace ArdourCanvas;
Fill::Fill (Group* parent)
: Item (parent)
, _fill_color (0x000000ff)
, _fill (true)
{
}
void
Fill::set_fill_color (Color color)
{
begin_visual_change ();
_fill_color = color;
end_visual_change ();
}
void
Fill::set_fill (bool fill)
{
begin_visual_change ();
_fill = fill;
end_visual_change ();
}
void
Fill::setup_fill_context (Cairo::RefPtr<Cairo::Context> context) const
{
if (_gradient) {
context->set_source (_gradient);
} else {
set_source_rgba (context, _fill_color);
}
}
void
Fill::set_gradient (StopList const & stops, double height)
{
begin_visual_change ();
if (stops.empty()) {
_gradient.clear();
} else {
double r, g, b, a;
_gradient = Cairo::LinearGradient::create (0, 0, 0, height);
for (StopList::const_iterator s = stops.begin(); s != stops.end(); ++s) {
color_to_rgba (s->second, r, g, b, a);
_gradient->add_color_stop_rgba (s->first, r, g, b, a);
}
}
end_visual_change ();
}
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