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/*
Copyright (C) 2009 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "ardour/route_group.h"
#include "editor_group_tabs.h"
#include "editor.h"
#include "time_axis_view.h"
#include "utils.h"
using namespace std;
using namespace ARDOUR;
EditorGroupTabs::EditorGroupTabs (Editor* e)
: _editor (e)
{
}
void
EditorGroupTabs::render (cairo_t* cr)
{
/* background */
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_rectangle (cr, 0, 0, _width, _height);
cairo_fill (cr);
int32_t curr_start = 0;
RouteGroup* curr_group = 0;
Gdk::Color curr_colour;
int32_t y = 0;
for (Editor::TrackViewList::iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
if ((*i)->marked_for_display() == false) {
continue;
}
RouteGroup* g = (*i)->route_group ();
if (g != curr_group) {
if (curr_group) {
draw_group (cr, curr_start, y, curr_group, curr_colour);
}
curr_start = y;
curr_group = g;
curr_colour = (*i)->color ();
}
y += (*i)->effective_height ();
}
if (curr_group) {
draw_group (cr, curr_start, y, curr_group, curr_colour);
}
}
void
EditorGroupTabs::draw_group (cairo_t* cr, int32_t y1, int32_t y2, RouteGroup* g, Gdk::Color const & colour)
{
double const arc_radius = _width;
if (g->is_active()) {
cairo_set_source_rgba (cr, colour.get_red_p (), colour.get_green_p (), colour.get_blue_p (), 1);
} else {
cairo_set_source_rgba (cr, 1, 1, 1, 0.2);
}
cairo_move_to (cr, 0, y1 + arc_radius);
cairo_arc (cr, _width, y1 + arc_radius, arc_radius, M_PI, 3 * M_PI / 2);
cairo_line_to (cr, _width, y2);
cairo_arc (cr, _width, y2 - arc_radius, arc_radius, M_PI / 2, M_PI);
cairo_line_to (cr, 0, y1 + arc_radius);
cairo_fill (cr);
pair<string, double> const f = fit_to_pixels (cr, g->name(), y2 - y1 - arc_radius * 2);
cairo_text_extents_t ext;
cairo_text_extents (cr, g->name().c_str(), &ext);
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_move_to (cr, _width - ext.height / 2, y1 + (f.second + y2 - y1) / 2);
cairo_save (cr);
cairo_rotate (cr, - M_PI / 2);
cairo_show_text (cr, f.first.c_str());
cairo_restore (cr);
}
RouteGroup*
EditorGroupTabs::click_to_route_group (GdkEventButton* ev)
{
int32_t y = 0;
Editor::TrackViewList::iterator i = _editor->track_views.begin();
while (y < ev->y && i != _editor->track_views.end()) {
if ((*i)->marked_for_display()) {
y += (*i)->effective_height ();
}
if (y < ev->y) {
++i;
}
}
if (i == _editor->track_views.end()) {
return 0;
}
return (*i)->route_group ();
}
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