2 Copyright (C) 2010 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
45 LED::render (cairo_t* cr)
47 float diameter = std::min (_width, _height);
50 cairo_rectangle(cr, 0, 0, _width, _height);
51 cairo_stroke_preserve(cr);
52 cairo_set_source_rgb(cr, 0, 0, 0);
55 cairo_translate(cr, _width/2, _height/2);
59 cairo_pattern_t *pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, diameter);
60 cairo_pattern_add_color_stop_rgba (pat, 0, 0,0,0, 0.4);
61 cairo_pattern_add_color_stop_rgba (pat, 1, 1,1,1, 0.7);
62 cairo_arc (cr, 0, 0, diameter/2, 0, 2 * M_PI);
63 cairo_set_source (cr, pat);
65 cairo_pattern_destroy (pat);
68 cairo_set_source_rgb (cr, 0, 0, 0);
69 cairo_arc (cr, 0, 0, diameter/2-2, 0, 2 * M_PI);
73 cairo_set_source_rgba (cr, _red, _green, _blue, _active ? 0.8 : 0.2);
74 cairo_arc (cr, 0, 0, diameter/2-3, 0, 2 * M_PI);
78 cairo_scale(cr, 0.7, 0.7);
79 cairo_pattern_t *pat2 = cairo_pattern_create_linear (0.0, 0.0, 0.0, diameter/2-3);
80 cairo_pattern_add_color_stop_rgba (pat2, 0, 1,1,1, _active ? 0.4 : 0.2);
81 cairo_pattern_add_color_stop_rgba (pat2, 1, 1,1,1, 0.0);
82 cairo_arc (cr, 0, 0, diameter/2-3, 0, 2 * M_PI);
83 cairo_set_source (cr, pat2);
85 cairo_pattern_destroy (pat2);
88 cairo_set_source_rgba (cr, _red, _green, _blue, 1.0);
89 cairo_arc (cr, 0, 0, diameter/2-5, 0, 2 * M_PI);
96 LED::set_visual_state (int32_t s)
98 if (s != _visual_state) {
102 RefPtr<Style> style = get_style();
105 switch (_visual_state) {
107 c = style->get_fg (STATE_NORMAL);
110 c = style->get_fg (STATE_ACTIVE);
114 _red = c.get_red_p ();
115 _green = c.get_green_p ();
116 _blue = c.get_blue_p ();