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.
34 , _fixed_diameter (false)
47 LED::render (cairo_t* cr)
49 if (!_fixed_diameter) {
50 _diameter = std::min (_width, _height);
59 parent = get_parent ();
61 while (parent && !parent->get_has_window()) {
62 parent = parent->get_parent();
65 if (parent && parent->get_has_window()) {
66 style = parent->get_style ();
67 c = style->get_bg (parent->get_state());
70 c = style->get_bg (get_state());
74 cairo_rectangle(cr, 0, 0, _width, _height);
75 cairo_stroke_preserve(cr);
76 cairo_set_source_rgb(cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
80 cairo_translate(cr, _width/2, _height/2);
83 cairo_pattern_t *pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, _diameter);
84 cairo_pattern_add_color_stop_rgba (pat, 0, 0,0,0, 0.4);
85 cairo_pattern_add_color_stop_rgba (pat, 1, 1,1,1, 0.7);
86 cairo_arc (cr, 0, 0, _diameter/2, 0, 2 * M_PI);
87 cairo_set_source (cr, pat);
89 cairo_pattern_destroy (pat);
92 cairo_set_source_rgb (cr, 0, 0, 0);
93 cairo_arc (cr, 0, 0, _diameter/2-2, 0, 2 * M_PI);
97 cairo_set_source_rgba (cr, _red, _green, _blue, _active ? 0.8 : 0.2);
98 cairo_arc (cr, 0, 0, _diameter/2-3, 0, 2 * M_PI);
102 cairo_scale(cr, 0.7, 0.7);
103 cairo_pattern_t *pat2 = cairo_pattern_create_linear (0.0, 0.0, 0.0, _diameter/2-3);
104 cairo_pattern_add_color_stop_rgba (pat2, 0, 1,1,1, _active ? 0.4 : 0.2);
105 cairo_pattern_add_color_stop_rgba (pat2, 1, 1,1,1, 0.0);
106 cairo_arc (cr, 0, 0, _diameter/2-3, 0, 2 * M_PI);
107 cairo_set_source (cr, pat2);
109 cairo_pattern_destroy (pat2);
115 LED::set_active (bool yn)
118 _visual_state = (yn ? 1 : 0);
119 set_colors_from_style ();
123 LED::set_visual_state (int32_t s)
125 if (s != _visual_state) {
128 set_colors_from_style ();
133 LED::set_diameter (float d)
135 _diameter = (d*2) + 5.0;
137 if (_diameter != 0.0) {
138 _fixed_diameter = true;
147 set_colors_from_style ();
148 CairoWidget::on_realize ();
152 LED::on_size_request (Gtk::Requisition* req)
154 if (_fixed_diameter) {
155 req->width = _diameter;
156 req->height = _diameter;
158 CairoWidget::on_size_request (req);
163 LED::set_colors_from_style ()
165 RefPtr<Style> style = get_style();
168 switch (_visual_state) {
170 c = style->get_fg (STATE_NORMAL);
173 c = style->get_fg (STATE_ACTIVE);
177 _red = c.get_red_p ();
178 _green = c.get_green_p ();
179 _blue = c.get_blue_p ();