2 Copyright (C) 2011-2013 Paul Davis
3 Author: Carl Hetherington <cth@carlh.net>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <cairomm/cairomm.h>
22 #include "ardour/utils.h"
24 #include "pbd/compose.h"
25 #include "pbd/convert.h"
27 #include "canvas/fill.h"
28 #include "canvas/item.h"
29 #include "canvas/types.h"
30 #include "canvas/utils.h"
31 #include "canvas/colors.h"
34 using namespace ArdourCanvas;
36 Fill::Fill (Item& self)
38 , _fill_color (0x000000ff)
40 , _transparent (false)
45 Fill::set_fill_color (Color color)
47 if (_fill_color != color) {
48 _self.begin_visual_change ();
52 color_to_rgba (color, r, g, b, a);
59 _self.end_visual_change ();
64 Fill::set_fill (bool fill)
67 _self.begin_visual_change ();
69 _self.end_visual_change ();
74 Fill::setup_fill_context (Cairo::RefPtr<Cairo::Context> context) const
77 context->set_source (_pattern);
79 set_source_rgba (context, _fill_color);
84 Fill::setup_gradient_context (Cairo::RefPtr<Cairo::Context> context, Rect const & self, Duple const & draw_origin) const
86 Cairo::RefPtr<Cairo::LinearGradient> _gradient;
88 if (_vertical_gradient) {
89 _gradient = Cairo::LinearGradient::create (draw_origin.x, self.y0, draw_origin.x, self.y1);
91 _gradient = Cairo::LinearGradient::create (self.x0, draw_origin.y, self.x1, draw_origin.y);
94 for (StopList::const_iterator s = _stops.begin(); s != _stops.end(); ++s) {
96 color_to_rgba (s->second, r, g, b, a);
97 _gradient->add_color_stop_rgba (s->first, r, g, b, a);
100 context->set_source (_gradient);
104 Fill::set_pattern (Cairo::RefPtr<Cairo::Pattern> p)
110 Fill::set_gradient (StopList const & stops, bool vertical)
112 _self.begin_visual_change ();
118 _vertical_gradient = vertical;
121 _self.end_visual_change ();