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livetrax/libs/surfaces/push2/scale.cc

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/*
* Copyright (C) 2016-2018 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2016-2018 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/gui_thread.h"
#include "gtkmm2ext/colors.h"
#include "canvas/rectangle.h"
#include "canvas/text.h"
#include "canvas.h"
#include "menu.h"
#include "push2.h"
#include "scale.h"
#include "pbd/i18n.h"
#ifdef __APPLE__
#define Rect ArdourCanvas::Rect
#endif
using namespace ARDOUR;
using namespace PBD;
using namespace Glib;
using namespace ArdourSurface;
using namespace Gtkmm2ext;
using namespace ArdourCanvas;
static double unselected_root_alpha = 0.5;
static const char*
row_interval_string (const Push2::RowInterval row_interval, const bool inkey)
{
switch (row_interval) {
case Push2::Third:
return _("3rd \u2191");
case Push2::Fourth:
return _("4th \u2191");
case Push2::Fifth:
return _("5th \u2191");
case Push2::Sequential:
return inkey ? _("Octave \u2191") : _("Sequential \u2191");
}
return "";
}
static const char*
column_interval_string (const bool inkey)
{
return inkey ? _("Scale \u2192") : _("Semitone \u2192");
}
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ScaleLayout::ScaleLayout (Push2& p, Session & s, std::string const & name)
: Push2Layout (p, s, name)
, _last_vpot (-1)
, _vpot_delta_cnt (0)
{
Pango::FontDescription fd ("Sans 10");
/* background */
_bg = new ArdourCanvas::Rectangle (this);
_bg->set (Rect (0, 0, display_width(), display_height()));
_bg->set_fill_color (_p2.get_color (Push2::DarkBackground));
_left_scroll_text = new Text (this);
_left_scroll_text->set_font_description (fd);
_left_scroll_text->set_position (Duple (10, 5));
_left_scroll_text->set_color (_p2.get_color (Push2::LightBackground));
_close_text = new Text (this);
_close_text->set_font_description (fd);
_close_text->set_position (Duple (10, 5));
_close_text->set_color (_p2.get_color (Push2::LightBackground));
_close_text->set (_("Close"));
_right_scroll_text = new Text (this);
_right_scroll_text->set_font_description (fd);
_right_scroll_text->set_position (Duple (10 + (7 * Push2Canvas::inter_button_spacing()), 5));
_right_scroll_text->set_color (_p2.get_color (Push2::LightBackground));
Pango::FontDescription fd2 ("Sans 8");
_inkey_text = new Text (this);
_inkey_text->set_font_description (fd2);
_inkey_text->set_position (Duple (10, 140));
_inkey_text->set_color (_p2.get_color (Push2::LightBackground));
_inkey_text->set (_("Scale"));
_chromatic_text = new Text (this);
_chromatic_text->set_font_description (fd2);
_chromatic_text->set_position (Duple (45, 140));
_chromatic_text->set_color (_p2.get_color (Push2::LightBackground));
_chromatic_text->set (_("Chromatic"));
_fixed_text = new Text (this);
_fixed_text->set_font_description (fd2);
_fixed_text->set_position (Duple (10 + (7 * Push2Canvas::inter_button_spacing()), 140));
_fixed_text->set_color (_p2.get_color (Push2::LightBackground));
_fixed_text->set (_("Fixed"));
_rooted_text = new Text (this);
_rooted_text->set_font_description (fd2);
_rooted_text->set_position (Duple (45 + (7 * Push2Canvas::inter_button_spacing()), 140));
_rooted_text->set_color (_p2.get_color (Push2::LightBackground));
_rooted_text->set (_("Rooted"));
_row_interval_text = new Text (this);
_row_interval_text->set_font_description (fd);
_row_interval_text->set_position (Duple (10, 60));
_row_interval_text->set_color (_p2.get_color (Push2::LightBackground));
_row_interval_text->set (row_interval_string (_p2.row_interval (), _p2.in_key ()));
_column_interval_text = new Text (this);
_column_interval_text->set_font_description (fd);
_column_interval_text->set_position (Duple (10, 80));
_column_interval_text->set_color (_p2.get_color (Push2::LightBackground));
_column_interval_text->set (column_interval_string (false));
for (int n = 0; n < 8; ++n) {
/* text labels for root notes etc.*/
Text* t = new Text (this);
t->set_font_description (fd);
t->set_color (change_alpha (_p2.get_color (Push2::LightBackground), unselected_root_alpha));
t->set_position (Duple (10 + (n * Push2Canvas::inter_button_spacing()), 5));
switch (n) {
case 0:
/* zeroth element is a dummy */
break;
case 1:
t->set (S_("Note|C"));
break;
case 2:
t->set (S_("Note|G"));
break;
case 3:
t->set (S_("Note|D"));
break;
case 4:
t->set (S_("Note|A"));
break;
case 5:
t->set (S_("Note|E"));
break;
case 6:
t->set (S_("Note|B"));
break;
}
_upper_text.push_back (t);
t = new Text (this);
t->set_font_description (fd);
t->set_color (change_alpha (_p2.get_color (Push2::LightBackground), unselected_root_alpha));
t->set_position (Duple (10 + (n*Push2Canvas::inter_button_spacing()), 140));
switch (n) {
case 0:
/* zeroth element is a dummy */
break;
case 1:
t->set (S_("Note|F"));
break;
case 2:
t->set (S_("Note|B\u266D/A\u266F"));
break;
case 3:
t->set (S_("Note|E\u266D/D\u266F"));
break;
case 4:
t->set (S_("Note|A\u266D/G\u266F"));
break;
case 5:
t->set (S_("Note|D\u266D/C\u266F"));
break;
case 6:
t->set (S_("Note|G\u266D/F\u266F"));
break;
}
_lower_text.push_back (t);
}
build_scale_menu ();
_p2.ScaleChange.connect (_p2_connections, invalidator (*this), boost::bind (&ScaleLayout::show_root_state, this), &_p2);
}
ScaleLayout::~ScaleLayout ()
{
}
void
ScaleLayout::render (Rect const& area, Cairo::RefPtr<Cairo::Context> context) const
{
render_children (area, context);
}
void
ScaleLayout::button_upper (uint32_t n)
{
if (n == 0) {
if (_scale_menu->can_scroll_left()) {
_scale_menu->scroll (Push2Menu::DirectionLeft, true);
} else {
_p2.use_previous_layout ();
}
return;
}
if (n == 7) {
_scale_menu->scroll (Push2Menu::DirectionRight, true);
return;
}
int root = 0;
switch (n) {
case 1:
/* C */
root = 0;
break;
case 2:
/* G */
root = 7;
break;
case 3:
/* D */
root = 2;
break;
case 4:
/* A */
root = 9;
break;
case 5:
/* E */
root = 4;
break;
case 6:
/* B */
root = 11;
break;
case 7:
/* unused */
return;
}
_p2.set_pad_scale (root,
_p2.root_octave (),
_p2.mode (),
_p2.note_grid_origin (),
_p2.row_interval (),
_p2.in_key ());
}
void
ScaleLayout::button_lower (uint32_t n)
{
if (n == 0) {
_p2.set_pad_scale (_p2.scale_root (),
_p2.root_octave (),
_p2.mode (),
_p2.note_grid_origin (),
_p2.row_interval (),
!_p2.in_key ());
return;
}
int root = _p2.scale_root();
Push2::NoteGridOrigin origin = _p2.note_grid_origin ();
switch (n) {
case 1:
/* F */
root = 5;
break;
case 2:
/* B-flat */
root = 10;
break;
case 3:
/* E flat */
root = 3;
break;
case 4:
/* A flat */
root = 8;
break;
case 5:
/* D flat */
root = 1;
break;
case 6:
/* G flat */
root = 6;
break;
case 7:
/* fixed mode */
origin = (origin == Push2::Fixed) ? Push2::Rooted : Push2::Fixed;
break;
}
_p2.set_pad_scale (root,
_p2.root_octave (),
_p2.mode (),
origin,
_p2.row_interval (),
_p2.in_key ());
}
void
ScaleLayout::button_up ()
{
_scale_menu->scroll (Push2Menu::DirectionUp);
}
void
ScaleLayout::button_down ()
{
_scale_menu->scroll (Push2Menu::DirectionDown);
}
void
ScaleLayout::button_left ()
{
_scale_menu->scroll (Push2Menu::DirectionLeft);
}
void
ScaleLayout::button_right ()
{
_scale_menu->scroll (Push2Menu::DirectionRight);
}
void
ScaleLayout::show ()
{
boost::shared_ptr<Push2::Button> b;
_last_vpot = -1;
b = _p2.button_by_id (Push2::Upper1);
b->set_color (Push2::LED::White);
b->set_state (Push2::LED::OneShot24th);
_p2.write (b->state_msg());
b = _p2.button_by_id (Push2::Upper8);
b->set_color (Push2::LED::White);
b->set_state (Push2::LED::OneShot24th);
_p2.write (b->state_msg());
b = _p2.button_by_id (Push2::Lower1);
b->set_color (Push2::LED::White);
b->set_state (Push2::LED::OneShot24th);
_p2.write (b->state_msg());
/* all root buttons should be dimly lit */
Push2::ButtonID root_buttons[] = { Push2::Upper2, Push2::Upper3, Push2::Upper4, Push2::Upper5, Push2::Upper6, Push2::Upper7,
Push2::Lower2, Push2::Lower3, Push2::Lower4, Push2::Lower5, Push2::Lower6, Push2::Lower7, };
for (size_t n = 0; n < sizeof (root_buttons) / sizeof (root_buttons[0]); ++n) {
b = _p2.button_by_id (root_buttons[n]);
b->set_color (Push2::LED::DarkGray);
b->set_state (Push2::LED::OneShot24th);
_p2.write (b->state_msg());
}
show_root_state ();
show_fixed_state ();
Container::show ();
}
void
ScaleLayout::strip_vpot (int n, int delta)
{
if (_last_vpot != n) {
if (n > 0) {
uint32_t effective_column = n - 1;
uint32_t active = _scale_menu->active ();
if (active / _scale_menu->rows() != effective_column) {
/* knob turned is different than the current active column.
Just change that.
*/
_scale_menu->set_active (effective_column * _scale_menu->rows()); /* top entry of that column */
return;
}
}
/* new vpot, reset delta cnt */
_vpot_delta_cnt = 0;
}
if ((delta < 0 && _vpot_delta_cnt > 0) || (delta > 0 && _vpot_delta_cnt < 0)) {
/* direction changed, reset */
_vpot_delta_cnt = 0;
}
_vpot_delta_cnt += delta;
_last_vpot = n;
/* this thins out vpot delta events so that we don't scroll so fast
through the menu.
*/
const int vpot_slowdown_factor = 4;
const bool moved_enough = _vpot_delta_cnt % vpot_slowdown_factor == 0;
if (moved_enough) {
if (n == 0) {
Push2::RowInterval row_interval = _p2.row_interval();
if (_vpot_delta_cnt < 0 && row_interval > Push2::Third) {
row_interval = (Push2::RowInterval)(row_interval - 1);
} else if (_vpot_delta_cnt > 0 && row_interval < Push2::Sequential) {
row_interval = (Push2::RowInterval)(row_interval + 1);
}
_p2.set_pad_scale (_p2.scale_root (),
_p2.root_octave (),
_p2.mode (),
_p2.note_grid_origin (),
row_interval,
_p2.in_key ());
_row_interval_text->set(row_interval_string(row_interval, _p2.in_key ()));
} else {
if (_vpot_delta_cnt < 0) {
_scale_menu->scroll (Push2Menu::DirectionUp);
} else {
_scale_menu->scroll (Push2Menu::DirectionDown);
}
}
}
}
void
ScaleLayout::build_scale_menu ()
{
std::vector<std::string> v;
/* must match in which enums are declared in push2.h
*/
v.push_back ("Dorian");
v.push_back ("Ionian (Major)");
v.push_back ("Aeolian (Minor)");
v.push_back ("Harmonic Minor");
v.push_back ("MelodicMinor Asc.");
v.push_back ("MelodicMinor Desc.");
v.push_back ("Phrygian");
v.push_back ("Lydian");
v.push_back ("Mixolydian");
v.push_back ("Locrian");
v.push_back ("Pentatonic Major");
v.push_back ("Pentatonic Minor");
v.push_back ("Chromatic");
v.push_back ("Blues Scale");
v.push_back ("Neapolitan Minor");
v.push_back ("Neapolitan Major");
v.push_back ("Oriental");
v.push_back ("Double Harmonic");
v.push_back ("Enigmatic");
v.push_back ("Hirajoshi");
v.push_back ("Hungarian Minor");
v.push_back ("Hungarian Major");
v.push_back ("Kumoi");
v.push_back ("Iwato");
v.push_back ("Hindu");
v.push_back ("Spanish 8 Tone");
v.push_back ("Pelog");
v.push_back ("Hungarian Gypsy");
v.push_back ("Overtone");
v.push_back ("Leading Whole Tone");
v.push_back ("Arabian");
v.push_back ("Balinese");
v.push_back ("Gypsy");
v.push_back ("Mohammedan");
v.push_back ("Javanese");
v.push_back ("Persian");
v.push_back ("Algeria");
_scale_menu = new Push2Menu (this, v);
_scale_menu->Rearranged.connect (_menu_connections, invalidator (*this), boost::bind (&ScaleLayout::menu_rearranged, this), &_p2);
_scale_menu->set_layout (6, 6);
_scale_menu->set_text_color (_p2.get_color (Push2::ParameterName));
_scale_menu->set_active_color (_p2.get_color (Push2::LightBackground));
Pango::FontDescription fd ("Sans Bold Condensed 8");
_scale_menu->set_font_description (fd);
/* Move menu horizontally so that the leftmost column is in the
2nd-from-left column of the display/button layout. The Y position is
just what appears centered to me. */
_scale_menu->set_position (Duple (10 + Push2Canvas::inter_button_spacing(), 32));
/* listen for changes */
_scale_menu->ActiveChanged.connect (_menu_connections, invalidator (*this), boost::bind (&ScaleLayout::mode_changed, this), &_p2);
}
void
ScaleLayout::show_root_state ()
{
if (!parent()) {
/* don't do this stuff if we're not visible */
return;
}
_row_interval_text->set (
row_interval_string (_p2.row_interval (), _p2.in_key ()));
_column_interval_text->set (column_interval_string (_p2.in_key ()));
if (_p2.in_key()) {
_chromatic_text->set_color (change_alpha (_chromatic_text->color(), unselected_root_alpha));
_inkey_text->set_color (change_alpha (_inkey_text->color(), 1.0));
} else {
_inkey_text->set_color (change_alpha (_chromatic_text->color(), unselected_root_alpha));
_chromatic_text->set_color (change_alpha (_inkey_text->color(), 1.0));
}
Pango::FontDescription fd_bold ("Sans Bold 10");
Pango::FontDescription fd ("Sans 10");
uint32_t highlight_text = 0;
std::vector<Text*>* none_text_array = 0;
std::vector<Text*>* one_text_array = 0;
Push2::ButtonID bid = Push2::Upper2; /* keep compilers quiet */
switch (_p2.scale_root()) {
case 0:
highlight_text = 1;
none_text_array = &_lower_text;
one_text_array = &_upper_text;
bid = Push2::Upper2;
break;
case 1:
highlight_text = 5;
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none_text_array = &_upper_text;
one_text_array = &_lower_text;
bid = Push2::Lower6;
break;
case 2:
highlight_text = 3;
none_text_array = &_lower_text;
one_text_array = &_upper_text;
bid = Push2::Upper4;
break;
case 3:
highlight_text = 3;
none_text_array = &_upper_text;
one_text_array = &_lower_text;
bid = Push2::Lower4;
break;
case 4:
highlight_text = 5;
none_text_array = &_lower_text;
one_text_array = &_upper_text;
bid = Push2::Upper6;
break;
case 5:
highlight_text = 1;
none_text_array = &_upper_text;
one_text_array = &_lower_text;
bid = Push2::Lower2;
break;
case 6:
highlight_text = 6;
none_text_array = &_upper_text;
one_text_array = &_lower_text;
bid = Push2::Lower7;
break;
case 7:
highlight_text = 2;
none_text_array = &_lower_text;
one_text_array = &_upper_text;
bid = Push2::Upper3;
break;
case 8:
highlight_text = 4;
none_text_array = &_upper_text;
one_text_array = &_lower_text;
bid = Push2::Lower5;
break;
case 9:
highlight_text = 4;
none_text_array = &_lower_text;
one_text_array = &_upper_text;
bid = Push2::Upper5;
break;
case 10:
highlight_text = 2;
none_text_array = &_upper_text;
one_text_array = &_lower_text;
bid = Push2::Lower3;
break;
case 11:
highlight_text = 6;
none_text_array = &_lower_text;
one_text_array = &_upper_text;
bid = Push2::Upper7;
break;
default:
return;
}
if (none_text_array) {
for (uint32_t nn = 1; nn < 7; ++nn) {
(*none_text_array)[nn]->set_font_description (fd);
(*none_text_array)[nn]->set_color (change_alpha ((*none_text_array)[nn]->color(), unselected_root_alpha));
if (nn == highlight_text) {
(*one_text_array)[nn]->set_font_description (fd_bold);
(*one_text_array)[nn]->set_color (change_alpha ((*one_text_array)[nn]->color(), 1.0));
} else {
(*one_text_array)[nn]->set_font_description (fd);
(*one_text_array)[nn]->set_color (change_alpha ((*one_text_array)[nn]->color(), unselected_root_alpha));
}
}
}
boost::shared_ptr<Push2::Button> b = _p2.button_by_id (bid);
if (b != _root_button) {
if (_root_button) {
/* turn the old one off (but not totally) */
_root_button->set_color (Push2::LED::DarkGray);
_root_button->set_state (Push2::LED::OneShot24th);
_p2.write (_root_button->state_msg());
}
_root_button = b;
if (_root_button) {
/* turn the new one on */
_root_button->set_color (Push2::LED::White);
_root_button->set_state (Push2::LED::OneShot24th);
_p2.write (_root_button->state_msg());
}
}
_scale_menu->set_active ((uint32_t) _p2.mode ());
show_fixed_state ();
}
void
ScaleLayout::show_fixed_state ()
{
if (!parent()) {
/* don't do this stuff if we're not visible */
return;
}
if (_p2.note_grid_origin() == Push2::Fixed) {
_rooted_text->set_color (change_alpha (_fixed_text->color(), unselected_root_alpha));
_fixed_text->set_color (change_alpha (_rooted_text->color(), 1.0));
} else {
_fixed_text->set_color (change_alpha (_fixed_text->color(), unselected_root_alpha));
_rooted_text->set_color (change_alpha (_rooted_text->color(), 1.0));
}
}
void
ScaleLayout::mode_changed ()
{
MusicalMode::Type m = (MusicalMode::Type) _scale_menu->active();
_p2.set_pad_scale (_p2.scale_root (),
_p2.root_octave (),
m,
_p2.note_grid_origin (),
_p2.row_interval (),
_p2.in_key ());
}
void
ScaleLayout::menu_rearranged ()
{
if (_scale_menu->can_scroll_left()) {
_left_scroll_text->set ("<");
_close_text->hide ();
} else {
_left_scroll_text->set (std::string());
_close_text->show ();
}
if (_scale_menu->can_scroll_right()) {
_right_scroll_text->set (">");
} else {
_right_scroll_text->set (std::string());
}
}
void
ScaleLayout::update_cursor_buttons ()
{
boost::shared_ptr<Push2::Button> b;
bool change;
b = _p2.button_by_id (Push2::Up);
change = false;
if (_scale_menu->active() == 0) {
if (b->color_index() != Push2::LED::Black) {
b->set_color (Push2::LED::Black);
change = true;
}
} else {
if (b->color_index() != Push2::LED::White) {
b->set_color (Push2::LED::White);
change = true;
}
}
if (change) {
b->set_state (Push2::LED::OneShot24th);
_p2.write (b->state_msg());
}
/* down */
b = _p2.button_by_id (Push2::Down);
change = false;
if (_scale_menu->active() == _scale_menu->items() - 1) {
if (b->color_index() != Push2::LED::Black) {
b->set_color (Push2::LED::Black);
change = true;
}
} else {
if (b->color_index() != Push2::LED::White) {
b->set_color (Push2::LED::White);
change = true;
}
}
if (change) {
b->set_color (Push2::LED::OneShot24th);
_p2.write (b->state_msg());
}
/* left */
b = _p2.button_by_id (Push2::Left);
change = false;
if (_scale_menu->active() < _scale_menu->rows()) {
if (b->color_index() != Push2::LED::Black) {
b->set_color (Push2::LED::Black);
change = true;
}
} else {
if (b->color_index() != Push2::LED::White) {
b->set_color (Push2::LED::White);
change = true;
}
}
if (change) {
b->set_color (Push2::LED::OneShot24th);
_p2.write (b->state_msg());
}
/* right */
b = _p2.button_by_id (Push2::Right);
change = false;
if (_scale_menu->active() > (_scale_menu->items() - _scale_menu->rows())) {
if (b->color_index() != Push2::LED::Black) {
b->set_color (Push2::LED::Black);
change = true;
}
} else {
if (b->color_index() != Push2::LED::White) {
b->set_color (Push2::LED::White);
change = true;
}
}
if (change) {
b->set_color (Push2::LED::OneShot24th);
_p2.write (b->state_msg());
}
}