3b89d9eaa0
git-svn-id: svn://localhost/ardour2/branches/3.0@5069 d708f5d6-7413-0410-9779-e7cbd77b26cf
97 lines
2.3 KiB
C++
97 lines
2.3 KiB
C++
/*
|
|
Copyright (C) 2003 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 <cstdlib>
|
|
#include <cmath>
|
|
|
|
#include <algorithm>
|
|
#include <string>
|
|
|
|
#include <list>
|
|
|
|
#include "pbd/error.h"
|
|
|
|
#include <gtkmm2ext/utils.h>
|
|
#include <gtkmm2ext/selector.h>
|
|
#include <gtkmm2ext/gtk_ui.h>
|
|
|
|
#include "ardour/session.h"
|
|
#include "ardour/utils.h"
|
|
|
|
#include "public_editor.h"
|
|
#include "axis_view.h"
|
|
#include "i18n.h"
|
|
|
|
using namespace std;
|
|
using namespace Gtk;
|
|
using namespace Gtkmm2ext;
|
|
|
|
list<Gdk::Color> AxisView::used_colors;
|
|
|
|
AxisView::AxisView (ARDOUR::Session& sess) : _session(sess)
|
|
{
|
|
_selected = false;
|
|
_marked_for_display = false;
|
|
}
|
|
|
|
AxisView::~AxisView()
|
|
{
|
|
|
|
}
|
|
|
|
Gdk::Color
|
|
AxisView::unique_random_color()
|
|
{
|
|
Gdk::Color newcolor;
|
|
|
|
while (1) {
|
|
|
|
/* avoid neon/glowing tones by limiting them to the
|
|
"inner section" (paler) of a color wheel/circle.
|
|
*/
|
|
|
|
const int32_t max_saturation = 48000; // 65535 would open up the whole color wheel
|
|
|
|
newcolor.set_red (random() % max_saturation);
|
|
newcolor.set_blue (random() % max_saturation);
|
|
newcolor.set_green (random() % max_saturation);
|
|
|
|
if (used_colors.size() == 0) {
|
|
used_colors.push_back (newcolor);
|
|
return newcolor;
|
|
}
|
|
|
|
for (list<Gdk::Color>::iterator i = used_colors.begin(); i != used_colors.end(); ++i) {
|
|
Gdk::Color c = *i;
|
|
float rdelta, bdelta, gdelta;
|
|
|
|
rdelta = newcolor.get_red() - c.get_red();
|
|
bdelta = newcolor.get_blue() - c.get_blue();
|
|
gdelta = newcolor.get_green() - c.get_green();
|
|
|
|
if (sqrt (rdelta*rdelta + bdelta*bdelta + gdelta*gdelta) > 25.0) {
|
|
used_colors.push_back (newcolor);
|
|
return newcolor;
|
|
}
|
|
}
|
|
|
|
/* XXX need throttle here to make sure we don't spin for ever */
|
|
}
|
|
}
|