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livetrax/gtk2_ardour/mixer_group_tabs.cc

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/*
* Copyright (C) 2009-2011 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2009-2012 David Robillard <d@drobilla.net>
* Copyright (C) 2009-2016 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2014-2017 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <boost/foreach.hpp>
#include "gtkmm2ext/utils.h"
#include "ardour/route_group.h"
#include "gtkmm2ext/colors.h"
#include "mixer_group_tabs.h"
#include "mixer_strip.h"
#include "mixer_ui.h"
#include "rgb_macros.h"
#include "route_group_dialog.h"
#include "ui_config.h"
#include "utils.h"
#include "pbd/i18n.h"
using namespace std;
using namespace Gtk;
using namespace ARDOUR;
using namespace ARDOUR_UI_UTILS;
using namespace PBD;
MixerGroupTabs::MixerGroupTabs (Mixer_UI* m)
: _mixer (m)
{
}
list<GroupTabs::Tab>
MixerGroupTabs::compute_tabs () const
{
list<Tab> tabs;
Tab tab;
tab.from = 0;
tab.group = 0;
int32_t x = 0;
TreeModel::Children rows = _mixer->track_model->children ();
for (TreeModel::Children::iterator i = rows.begin(); i != rows.end(); ++i) {
AxisView* av = (*i)[_mixer->stripable_columns.strip];
MixerStrip* s = dynamic_cast<MixerStrip*> (av);
if (!s) {
continue;
}
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if (s->route()->is_main_bus () || !s->marked_for_display()) {
continue;
}
#ifdef MIXBUS
if (s->route()->mixbus()) {
continue;
}
#endif
RouteGroup* g = s->route_group ();
if (g != tab.group) {
if (tab.group) {
tab.to = x;
tabs.push_back (tab);
}
tab.from = x;
tab.group = g;
if (g) {
tab.color = group_color (g);
}
}
int ww = 0, wh = 0;
s->get_size_request (ww, wh); // widget may not be realized, get_width() is invalid.
x += ww;
}
if (tab.group) {
tab.to = x;
tabs.push_back (tab);
}
return tabs;
}
void
MixerGroupTabs::draw_tab (cairo_t* cr, Tab const & tab)
{
double const arc_radius = get_height();
double r, g, b, a;
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if (tab.group && tab.group->is_active()) {
Gtkmm2ext::color_to_rgba (tab.color, r, g, b, a);
} else {
Gtkmm2ext::color_to_rgba (UIConfiguration::instance().color ("inactive group tab"), r, g, b, a);
}
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a = 1.0;
cairo_set_source_rgba (cr, r, g, b, a);
cairo_arc (cr, tab.from + arc_radius, get_height(), arc_radius, M_PI, 3 * M_PI / 2);
cairo_line_to (cr, tab.to - arc_radius, 0);
cairo_arc (cr, tab.to - arc_radius, get_height(), arc_radius, 3 * M_PI / 2, 2 * M_PI);
cairo_line_to (cr, tab.from, get_height());
cairo_fill (cr);
if (tab.group && (tab.to - tab.from) > arc_radius) {
int text_width, text_height;
Glib::RefPtr<Pango::Layout> layout;
layout = Pango::Layout::create (get_pango_context ());
layout->set_ellipsize (Pango::ELLIPSIZE_MIDDLE);
layout->set_text (tab.group->name ());
layout->set_width ((tab.to - tab.from - arc_radius) * PANGO_SCALE);
layout->get_pixel_size (text_width, text_height);
cairo_move_to (cr, tab.from + (tab.to - tab.from - text_width) * .5, (get_height () - text_height) * .5);
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Gtkmm2ext::Color c = Gtkmm2ext::contrasting_text_color (Gtkmm2ext::rgba_to_color (r, g, b, a));
Gtkmm2ext::color_to_rgba (c, r, g, b, a);
cairo_set_source_rgb (cr, r, g, b);
pango_cairo_show_layout (cr, layout->gobj ());
}
}
double
MixerGroupTabs::primary_coordinate (double x, double) const
{
return x;
}
RouteList
MixerGroupTabs::routes_for_tab (Tab const * t) const
{
RouteList routes;
int32_t x = 0;
TreeModel::Children rows = _mixer->track_model->children ();
for (TreeModel::Children::iterator i = rows.begin(); i != rows.end(); ++i) {
AxisView* av = (*i)[_mixer->stripable_columns.strip];
MixerStrip* s = dynamic_cast<MixerStrip*> (av);
if (!s) {
continue;
}
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if (s->route()->is_main_bus () || !s->marked_for_display()) {
continue;
}
if (x >= t->to) {
/* tab finishes before this track starts */
break;
}
double const h = x + s->get_width() / 2;
if (t->from < h && t->to > h) {
routes.push_back (s->route ());
}
x += s->get_width ();
}
return routes;
}
RouteList
MixerGroupTabs::selected_routes () const
{
RouteList rl;
BOOST_FOREACH (AxisView* r, _mixer->selection().axes) {
std::shared_ptr<Route> rp = std::dynamic_pointer_cast<Route> (r->stripable());
if (rp) {
rl.push_back (rp);
}
}
return rl;
}