1 /*
2  * Copyright (C) 2009-2011 Carl Hetherington <carl@carlh.net>
3  * Copyright (C) 2009-2011 David Robillard <d@drobilla.net>
4  * Copyright (C) 2011-2016 Paul Davis <paul@linuxaudiosystems.com>
5  * Copyright (C) 2014-2017 Robin Gareus <robin@gareus.org>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License along
18  * with this program; if not, write to the Free Software Foundation, Inc.,
19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20  */
21 
22 #include "gtkmm2ext/utils.h"
23 
24 #include "ardour/route_group.h"
25 
26 #include "gtkmm2ext/colors.h"
27 
28 #include "editor.h"
29 #include "editor_group_tabs.h"
30 #include "editor_route_groups.h"
31 #include "editor_routes.h"
32 #include "rgb_macros.h"
33 #include "route_time_axis.h"
34 #include "ui_config.h"
35 #include "utils.h"
36 
37 #include "pbd/i18n.h"
38 
39 using namespace std;
40 using namespace ARDOUR;
41 using namespace ARDOUR_UI_UTILS;
42 
EditorGroupTabs(Editor * e)43 EditorGroupTabs::EditorGroupTabs (Editor* e)
44 	: EditorComponent (e)
45 {
46 
47 }
48 
49 list<GroupTabs::Tab>
compute_tabs() const50 EditorGroupTabs::compute_tabs () const
51 {
52 	list<Tab> tabs;
53 
54 	Tab tab;
55 	tab.from = 0;
56 	tab.group = 0;
57 
58 	int32_t y = 0;
59 	for (TrackViewList::iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
60 
61 		if ((*i)->marked_for_display() == false) {
62 			continue;
63 		}
64 
65 		RouteGroup* g = (*i)->route_group ();
66 
67 		if (g != tab.group) {
68 			if (tab.group) {
69 				tab.to = y;
70 				tabs.push_back (tab);
71 			}
72 
73 			tab.from = y;
74 			tab.group = g;
75 			if (g) {
76 				tab.color = group_color (g);
77 			}
78 		}
79 
80 		y += (*i)->effective_height ();
81 	}
82 
83 	if (tab.group) {
84 		tab.to = y;
85 		tabs.push_back (tab);
86 	}
87 
88 	return tabs;
89 }
90 
91 void
draw_tab(cairo_t * cr,Tab const & tab)92 EditorGroupTabs::draw_tab (cairo_t* cr, Tab const & tab)
93 {
94 	double const arc_radius = get_width();
95 	double r, g, b, a;
96 
97 	if (tab.group && tab.group->is_active()) {
98 		Gtkmm2ext::color_to_rgba (tab.color, r, g, b, a);
99 	} else {
100 		Gtkmm2ext::color_to_rgba (UIConfiguration::instance().color ("inactive group tab"), r, g, b, a);
101 	}
102 
103 	a = 1.0;
104 
105 	cairo_set_source_rgba (cr, r, g, b, a);
106 	cairo_move_to (cr, 0, tab.from + arc_radius);
107 	cairo_arc (cr, get_width(), tab.from + arc_radius, arc_radius, M_PI, 3 * M_PI / 2);
108 	cairo_line_to (cr, get_width(), tab.to);
109 	cairo_arc (cr, get_width(), tab.to - arc_radius, arc_radius, M_PI / 2, M_PI);
110 	cairo_line_to (cr, 0, tab.from + arc_radius);
111 	cairo_fill (cr);
112 
113 	if (tab.group && (tab.to - tab.from) > arc_radius) {
114 		int text_width, text_height;
115 
116 		Glib::RefPtr<Pango::Layout> layout;
117 		layout = Pango::Layout::create (get_pango_context ());
118 		layout->set_ellipsize (Pango::ELLIPSIZE_MIDDLE);
119 
120 		layout->set_text (tab.group->name ());
121 		layout->set_width ((tab.to - tab.from - arc_radius) * PANGO_SCALE);
122 		layout->get_pixel_size (text_width, text_height);
123 
124 		cairo_move_to (cr, (get_width() - text_height) * .5, (text_width + tab.to + tab.from) * .5);
125 
126 		Gtkmm2ext::Color c = Gtkmm2ext::contrasting_text_color (Gtkmm2ext::rgba_to_color (r, g, b, a));
127 		Gtkmm2ext::color_to_rgba (c, r, g, b, a);
128 		cairo_set_source_rgb (cr, r, g, b);
129 
130 		cairo_save (cr);
131 		cairo_rotate (cr, M_PI * -.5);
132 		pango_cairo_show_layout (cr, layout->gobj ());
133 		cairo_restore (cr);
134 	}
135 }
136 
137 double
primary_coordinate(double,double y) const138 EditorGroupTabs::primary_coordinate (double, double y) const
139 {
140 	return y;
141 }
142 
143 RouteList
routes_for_tab(Tab const * t) const144 EditorGroupTabs::routes_for_tab (Tab const * t) const
145 {
146 	RouteList routes;
147 	int32_t y = 0;
148 
149 	for (TrackViewList::iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
150 
151 		if ((*i)->marked_for_display() == false) {
152 			continue;
153 		}
154 
155 		RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
156 		if (rtv) {
157 
158 			if (y >= t->to) {
159 				/* tab finishes before this track starts */
160 				break;
161 			}
162 
163 			double const h = y + (*i)->effective_height() / 2;
164 
165 			if (t->from < h && t->to > h) {
166 				routes.push_back (rtv->route ());
167 			}
168 		}
169 
170 		y += (*i)->effective_height ();
171 	}
172 
173 	return routes;
174 }
175 
176 
177 void
add_menu_items(Gtk::Menu * m,RouteGroup * g)178 EditorGroupTabs::add_menu_items (Gtk::Menu* m, RouteGroup* g)
179 {
180 	using namespace Gtk::Menu_Helpers;
181 
182 	if (g) {
183 		MenuList& items = m->items ();
184 		items.push_back (MenuElem (_("Fit to Window"), sigc::bind (sigc::mem_fun (*_editor, &Editor::fit_route_group), g)));
185 	}
186 }
187 
188 RouteList
selected_routes() const189 EditorGroupTabs::selected_routes () const
190 {
191 	RouteList rl;
192 
193 	for (TrackSelection::iterator i = _editor->get_selection().tracks.begin(); i != _editor->get_selection().tracks.end(); ++i) {
194 		RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
195 		if (rtv) {
196 			rl.push_back (rtv->route());
197 		}
198 	}
199 
200 	return rl;
201 }
202 
203