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/*
* Copyright (C) 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 "gtkmm2ext/utils.h"
#include "widgets/tooltips.h"
#include "ardour_gauge.h"
#include "ui_config.h"
#define PADDING 3
ArdourGauge::ArdourGauge (std::string const& max_text)
{
_layout = Pango::Layout::create (get_pango_context ());
_layout->set_text (max_text);
}
ArdourGauge::~ArdourGauge ()
{
}
void
ArdourGauge::on_size_request (Gtk::Requisition* req)
{
req->width = req->height = 0;
CairoWidget::on_size_request (req);
int w, h;
_layout->get_pixel_size (w, h);
req->width = std::max (req->width, 100 /*std::max (20, w + PADDING) */);
req->height = std::max (req->height, std::max (12, h + PADDING));
}
void
ArdourGauge::update ()
{
queue_draw ();
ArdourWidgets::set_tooltip (*this, tooltip_text ());
}
void
ArdourGauge::update (std::string const& txt)
{
_layout->set_text (txt);
update ();
}
void
ArdourGauge::blink (bool onoff)
{
_blink = onoff;
queue_draw ();
}
void
ArdourGauge::render (Cairo::RefPtr<Cairo::Context> const& ctx, cairo_rectangle_t*)
{
cairo_t* cr = ctx->cobj ();
Gtkmm2ext::Color bg = UIConfiguration::instance().color ("gtk_background");
Gtkmm2ext::Color base = UIConfiguration::instance ().color ("ruler base");
Gtkmm2ext::Color text = UIConfiguration::instance ().color ("ruler text");
const int width = get_width ();
const int height = get_height ();
cairo_rectangle (cr, 0, 0, width, height);
cairo_set_source_rgba (cr, 0,0,0,1 );
cairo_fill (cr);
cairo_rectangle (cr, 1, 1, width-2, height-2);
Gtkmm2ext::set_source_rgba (cr, bg);
cairo_fill (cr);
if (alert () && _blink) {
Gtkmm2ext::rounded_rectangle (cr, 1, 1, width - 2, height - 2, 1);
cairo_set_source_rgba (cr, 0.5, 0, 0, 1.0);
cairo_fill (cr);
}
cairo_rectangle (cr, PADDING, PADDING, width - PADDING - PADDING, height - PADDING - PADDING);
cairo_clip (cr);
const float lvl = level ();
int bw = (width - PADDING - PADDING) * lvl;
cairo_rectangle (cr, PADDING, PADDING, bw, height-PADDING);
switch (indicator ()) {
case Level_OK:
break;
case Level_WARN:
cairo_set_source_rgba (cr, .7, .6, 0, 1.0);
cairo_fill (cr);
break;
case Level_CRIT:
cairo_set_source_rgba (cr, .9, 0, 0, 1.0);
cairo_fill (cr);
break;
}
int w, h;
_layout->get_pixel_size (w, h);
cairo_save (cr);
cairo_translate (cr, 2+PADDING, height * .5);
cairo_move_to (cr, 0, h * -.5); //vertically center the text
pango_cairo_update_layout (cr, _layout->gobj());
Gtkmm2ext::set_source_rgba (cr, text);
pango_cairo_show_layout (cr, _layout->gobj());
cairo_restore (cr);
}
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