480 lines
14 KiB
C++
480 lines
14 KiB
C++
/*
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Copyright (C) 2013 Paul Davis
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Author: Robin Gareus
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <gtkmm2ext/cairo_widget.h>
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#include <gtkmm2ext/gtk_ui.h>
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#include <gtkmm2ext/utils.h>
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#include <gtkmm2ext/rgb_macros.h>
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#include "ardour_ui.h"
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#include "utils.h"
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#include "logmeter.h"
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#include "meter_patterns.h"
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#include "i18n.h"
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using namespace ARDOUR;
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using namespace PBD;
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using namespace Gtk;
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using namespace Gtkmm2ext;
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using namespace std;
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static const int max_pattern_metric_size = 1026;
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sigc::signal<void> ResetAllPeakDisplays;
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sigc::signal<void,ARDOUR::Route*> ResetRoutePeakDisplays;
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sigc::signal<void,ARDOUR::RouteGroup*> ResetGroupPeakDisplays;
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cairo_pattern_t*
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meter_render_ticks (Gtk::Widget& w, vector<ARDOUR::DataType> types)
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{
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Glib::RefPtr<Gdk::Window> win (w.get_window());
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bool background;
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gint width, height;
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win->get_size (width, height);
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background =
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w.get_name().substr(w.get_name().length() - 4) == "Left"
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|| w.get_name().substr(w.get_name().length() - 5) == "Right";
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cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
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cairo_t* cr = cairo_create (surface);
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cairo_move_to (cr, 0, 0);
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cairo_rectangle (cr, 0, 0, width, height);
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{
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Gdk::Color c = w.get_style()->get_bg (background ? Gtk::STATE_ACTIVE : Gtk::STATE_NORMAL);
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cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
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}
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cairo_fill (cr);
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height = min(max_pattern_metric_size, height);
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uint32_t peakcolor = ARDOUR_UI::config()->color_by_name ("meterbridge peaklabel");
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for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
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Gdk::Color c;
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c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
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if (types.size() > 1) {
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/* we're overlaying more than 1 set of marks, so use different colours */
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switch (*i) {
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case DataType::AUDIO:
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c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
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cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
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break;
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case DataType::MIDI:
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c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
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cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
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break;
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}
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} else {
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c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
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cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
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}
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std::map<int,float> points;
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switch (*i) {
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case DataType::AUDIO:
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points.insert (std::pair<int,float>(-60, 0.5));
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points.insert (std::pair<int,float>(-50, 0.5));
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points.insert (std::pair<int,float>(-40, 0.5));
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points.insert (std::pair<int,float>(-30, 0.5));
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points.insert (std::pair<int,float>(-25, 0.5));
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points.insert (std::pair<int,float>(-20, 1.0));
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points.insert (std::pair<int,float>(-19, 0.5));
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points.insert (std::pair<int,float>(-18, 1.0));
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points.insert (std::pair<int,float>(-17, 0.5));
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points.insert (std::pair<int,float>(-16, 0.5));
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points.insert (std::pair<int,float>(-15, 1.0));
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points.insert (std::pair<int,float>(-14, 0.5));
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points.insert (std::pair<int,float>(-13, 0.5));
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points.insert (std::pair<int,float>(-12, 0.5));
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points.insert (std::pair<int,float>(-11, 0.5));
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points.insert (std::pair<int,float>(-10, 1.0));
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points.insert (std::pair<int,float>( -9, 0.5));
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points.insert (std::pair<int,float>( -8, 0.5));
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points.insert (std::pair<int,float>( -7, 0.5));
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points.insert (std::pair<int,float>( -6, 0.5));
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points.insert (std::pair<int,float>( -5, 1.0));
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points.insert (std::pair<int,float>( -4, 0.5));
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points.insert (std::pair<int,float>( -3, 0.5));
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points.insert (std::pair<int,float>( -2, 0.5));
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points.insert (std::pair<int,float>( -1, 0.5));
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points.insert (std::pair<int,float>( 0, 1.0));
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points.insert (std::pair<int,float>( 1, 0.5));
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points.insert (std::pair<int,float>( 2, 0.5));
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points.insert (std::pair<int,float>( 3, 0.5));
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points.insert (std::pair<int,float>( 4, 0.5));
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points.insert (std::pair<int,float>( 5, 0.5));
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break;
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case DataType::MIDI:
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points.insert (std::pair<int,float>( 0, 1.0));
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points.insert (std::pair<int,float>( 16, 0.5));
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points.insert (std::pair<int,float>( 32, 0.5));
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points.insert (std::pair<int,float>( 48, 0.5));
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points.insert (std::pair<int,float>( 64, 1.0));
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points.insert (std::pair<int,float>( 80, 0.5));
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points.insert (std::pair<int,float>( 96, 0.5));
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points.insert (std::pair<int,float>(100, 1.0));
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points.insert (std::pair<int,float>(112, 0.5));
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points.insert (std::pair<int,float>(127, 1.0));
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break;
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}
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for (std::map<int,float>::const_iterator j = points.begin(); j != points.end(); ++j) {
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cairo_set_line_width (cr, (j->second));
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float fraction = 0;
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gint pos;
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switch (*i) {
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case DataType::AUDIO:
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if (j->first >= 0 || j->first == -9) {
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cairo_set_source_rgb (cr,
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UINT_RGBA_R_FLT(peakcolor),
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UINT_RGBA_G_FLT(peakcolor),
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UINT_RGBA_B_FLT(peakcolor));
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} else {
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cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
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}
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fraction = log_meter (j->first);
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pos = height - (gint) floor (height * fraction);
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cairo_move_to(cr, 0, pos + .5);
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cairo_line_to(cr, 3, pos + .5);
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cairo_stroke (cr);
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break;
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case DataType::MIDI:
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fraction = (j->first) / 127.0;
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pos = 1 + height - (gint) floor (height * fraction);
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pos = min (pos, height);
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cairo_arc(cr, 1.5, pos + .5, 1.0, 0, 2 * M_PI);
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cairo_fill(cr);
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break;
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}
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}
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}
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cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
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cairo_destroy (cr);
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cairo_surface_destroy (surface);
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return pattern;
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}
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cairo_pattern_t*
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meter_render_metrics (Gtk::Widget& w, vector<DataType> types)
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{
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Glib::RefPtr<Gdk::Window> win (w.get_window());
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bool tickleft;
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bool background;
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gint width, height;
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win->get_size (width, height);
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tickleft = w.get_name().substr(w.get_name().length() - 4) == "Left";
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background = tickleft || w.get_name().substr(w.get_name().length() - 5) == "Right";
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cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
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cairo_t* cr = cairo_create (surface);
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Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(w.get_pango_context());
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Pango::AttrList audio_font_attributes;
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Pango::AttrList midi_font_attributes;
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Pango::AttrList unit_font_attributes;
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Pango::AttrFontDesc* font_attr;
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Pango::FontDescription font;
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font = Pango::FontDescription (""); // use defaults
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//font = get_font_for_style("gain-fader");
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//font = w.get_style()->get_font();
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font.set_weight (Pango::WEIGHT_NORMAL);
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font.set_size (9.0 * PANGO_SCALE);
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font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
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audio_font_attributes.change (*font_attr);
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delete font_attr;
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font.set_weight (Pango::WEIGHT_ULTRALIGHT);
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font.set_stretch (Pango::STRETCH_ULTRA_CONDENSED);
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font.set_size (7.5 * PANGO_SCALE);
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font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
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midi_font_attributes.change (*font_attr);
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delete font_attr;
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font.set_size (7.0 * PANGO_SCALE);
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font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
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unit_font_attributes.change (*font_attr);
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delete font_attr;
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cairo_move_to (cr, 0, 0);
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cairo_rectangle (cr, 0, 0, width, height);
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{
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Gdk::Color c = w.get_style()->get_bg (background ? Gtk::STATE_ACTIVE : Gtk::STATE_NORMAL);
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cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
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}
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cairo_fill (cr);
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height = min(max_pattern_metric_size, height);
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uint32_t peakcolor = ARDOUR_UI::config()->color_by_name ("meterbridge peaklabel");
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for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
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Gdk::Color c;
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if (types.size() > 1) {
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/* we're overlaying more than 1 set of marks, so use different colours */
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Gdk::Color c;
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switch (*i) {
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case DataType::AUDIO:
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c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
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cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
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break;
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case DataType::MIDI:
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c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
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cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
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break;
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}
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} else {
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c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
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cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
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}
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std::map<int,float> points;
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switch (*i) {
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case DataType::AUDIO:
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layout->set_attributes (audio_font_attributes);
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points.insert (std::pair<int,float>(-50, 0.5));
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points.insert (std::pair<int,float>(-40, 0.5));
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points.insert (std::pair<int,float>(-30, 0.5));
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points.insert (std::pair<int,float>(-20, 1.0));
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if (types.size() == 1) {
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points.insert (std::pair<int,float>(-25, 0.5));
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points.insert (std::pair<int,float>(-15, 1.0));
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}
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points.insert (std::pair<int,float>(-18, 1.0));
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points.insert (std::pair<int,float>(-10, 1.0));
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points.insert (std::pair<int,float>( -5, 1.0));
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points.insert (std::pair<int,float>( -3, 0.5));
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points.insert (std::pair<int,float>( 0, 1.0));
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points.insert (std::pair<int,float>( 3, 0.5));
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break;
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case DataType::MIDI:
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layout->set_attributes (midi_font_attributes);
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points.insert (std::pair<int,float>( 0, 1.0));
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if (types.size() == 1) {
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points.insert (std::pair<int,float>( 16, 0.5));
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points.insert (std::pair<int,float>( 32, 0.5));
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points.insert (std::pair<int,float>( 48, 0.5));
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points.insert (std::pair<int,float>( 64, 1.0));
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points.insert (std::pair<int,float>( 80, 0.5));
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points.insert (std::pair<int,float>( 96, 0.5));
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points.insert (std::pair<int,float>(100, 0.5));
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points.insert (std::pair<int,float>(112, 0.5));
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} else {
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/* labels that don't overlay with dB */
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points.insert (std::pair<int,float>( 24, 0.5));
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points.insert (std::pair<int,float>( 48, 0.5));
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points.insert (std::pair<int,float>( 72, 0.5));
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}
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points.insert (std::pair<int,float>(127, 1.0));
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break;
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}
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char buf[32];
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gint pos;
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for (std::map<int,float>::const_iterator j = points.begin(); j != points.end(); ++j) {
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float fraction = 0;
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switch (*i) {
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case DataType::AUDIO:
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cairo_set_line_width (cr, (j->second));
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if (j->first >= 0) {
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cairo_set_source_rgb (cr,
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UINT_RGBA_R_FLT(peakcolor),
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UINT_RGBA_G_FLT(peakcolor),
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UINT_RGBA_B_FLT(peakcolor));
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}
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fraction = log_meter (j->first);
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snprintf (buf, sizeof (buf), "%+2d", j->first);
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pos = height - (gint) floor (height * fraction);
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if (tickleft) {
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cairo_move_to(cr, width-2.5, pos + .5);
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cairo_line_to(cr, width, pos + .5);
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} else {
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cairo_move_to(cr, 0, pos + .5);
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cairo_line_to(cr, 2.5, pos + .5);
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}
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cairo_stroke (cr);
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break;
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case DataType::MIDI:
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cairo_set_line_width (cr, 1.0);
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fraction = (j->first) / 127.0;
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snprintf (buf, sizeof (buf), "%3d", j->first);
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pos = 1 + height - (gint) rintf (height * fraction);
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pos = min (pos, height);
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if (tickleft) {
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cairo_arc(cr, width - 2.0, pos + .5, 1.0, 0, 2 * M_PI);
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} else {
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cairo_arc(cr, 3, pos + .5, 1.0, 0, 2 * M_PI);
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}
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cairo_fill(cr);
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break;
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}
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layout->set_text(buf);
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/* we want logical extents, not ink extents here */
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int tw, th;
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layout->get_pixel_size(tw, th);
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int p = pos - (th / 2);
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p = min (p, height - th);
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p = max (p, 0);
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cairo_move_to (cr, width-4-tw, p);
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pango_cairo_show_layout (cr, layout->gobj());
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}
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}
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if (types.size() == 1) {
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int tw, th;
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layout->set_attributes (unit_font_attributes);
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switch (types.at(0)) {
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case DataType::AUDIO:
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layout->set_text("dBFS");
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layout->get_pixel_size(tw, th);
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break;
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case DataType::MIDI:
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layout->set_text("vel");
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layout->get_pixel_size(tw, th);
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break;
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}
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Gdk::Color c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
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cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
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cairo_move_to (cr, 1, height - th - 1.5);
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pango_cairo_show_layout (cr, layout->gobj());
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}
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cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
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cairo_destroy (cr);
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cairo_surface_destroy (surface);
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return pattern;
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}
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typedef std::map<std::string,cairo_pattern_t*> TickPatterns;
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static TickPatterns ticks_patterns;
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gint meter_expose_ticks (GdkEventExpose *ev, std::vector<ARDOUR::DataType> types, Gtk::DrawingArea *mta)
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{
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Glib::RefPtr<Gdk::Window> win (mta->get_window());
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cairo_t* cr;
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cr = gdk_cairo_create (win->gobj());
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/* clip to expose area */
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gdk_cairo_rectangle (cr, &ev->area);
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cairo_clip (cr);
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cairo_pattern_t* pattern;
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TickPatterns::iterator i = ticks_patterns.find (mta->get_name());
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if (i == ticks_patterns.end()) {
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pattern = meter_render_ticks (*mta, types);
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ticks_patterns[mta->get_name()] = pattern;
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} else {
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pattern = i->second;
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}
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cairo_move_to (cr, 0, 0);
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cairo_set_source (cr, pattern);
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gint width, height;
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win->get_size (width, height);
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cairo_rectangle (cr, 0, 0, width, height);
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cairo_fill (cr);
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cairo_destroy (cr);
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return true;
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}
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typedef std::map<std::string,cairo_pattern_t*> MetricPatterns;
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static MetricPatterns metric_patterns;
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gint meter_expose_metrics (GdkEventExpose *ev, std::vector<ARDOUR::DataType> types, Gtk::DrawingArea *mma)
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{
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Glib::RefPtr<Gdk::Window> win (mma->get_window());
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cairo_t* cr;
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cr = gdk_cairo_create (win->gobj());
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/* clip to expose area */
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gdk_cairo_rectangle (cr, &ev->area);
|
|
cairo_clip (cr);
|
|
|
|
cairo_pattern_t* pattern;
|
|
MetricPatterns::iterator i = metric_patterns.find (mma->get_name());
|
|
|
|
if (i == metric_patterns.end()) {
|
|
pattern = meter_render_metrics (*mma, types);
|
|
metric_patterns[mma->get_name()] = pattern;
|
|
} else {
|
|
pattern = i->second;
|
|
}
|
|
|
|
cairo_move_to (cr, 0, 0);
|
|
cairo_set_source (cr, pattern);
|
|
|
|
gint width, height;
|
|
win->get_size (width, height);
|
|
|
|
cairo_rectangle (cr, 0, 0, width, height);
|
|
cairo_fill (cr);
|
|
|
|
cairo_destroy (cr);
|
|
|
|
return true;
|
|
}
|
|
|
|
void meter_clear_pattern_cache() {
|
|
metric_patterns.clear();
|
|
ticks_patterns.clear();
|
|
}
|