Gfx widget and Radio (#2685)

* widgetize
* gfx and Radio improvement
* format + handle not wfm visual states
* wf or gf
This commit is contained in:
Totoo 2025-06-07 11:43:07 +02:00 committed by GitHub
parent 37ca7a601c
commit 00853f526a
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GPG key ID: B5690EEEBB952194
8 changed files with 350 additions and 150 deletions

View file

@ -38,7 +38,7 @@ __attribute__((section(".external_app.app_fmradio.application_information"), use
/*.header_version = */ CURRENT_HEADER_VERSION,
/*.app_version = */ VERSION_MD5,
/*.app_name = */ "FM Radio",
/*.app_name = */ "Radio",
/*.bitmap_data = */ {
0x00,
0x00,

View file

@ -1,5 +1,5 @@
/*
* Copyright (C) 2024 HT Otto
* Copyright (C) 2024 HTotoo
* Copyright (C) 2025 RocketGod - Added modes from my Flipper Zero RF Jammer App - https://betaskynet.com
*
* This file is part of PortaPack.
@ -39,6 +39,28 @@ void FmRadioView::focus() {
field_frequency.focus();
}
void FmRadioView::show_hide_gfx(bool show) {
gr.hidden(!show);
gr.set_paused(!show);
waveform.set_paused(show);
btn_fav_0.hidden(show);
btn_fav_1.hidden(show);
btn_fav_2.hidden(show);
btn_fav_3.hidden(show);
btn_fav_4.hidden(show);
btn_fav_5.hidden(show);
btn_fav_6.hidden(show);
btn_fav_7.hidden(show);
btn_fav_8.hidden(show);
btn_fav_9.hidden(show);
txt_save_help.hidden(show);
btn_fav_save.hidden(show);
field_bw.hidden(show);
field_modulation.hidden(show);
text_mode_label.hidden(show);
set_dirty();
}
void FmRadioView::change_mode(int32_t mod) {
field_bw.on_change = [this](size_t n, OptionsField::value_t) { (void)n; };
@ -48,8 +70,8 @@ void FmRadioView::change_mode(int32_t mod) {
audio_spectrum_update = false; // Reset spectrum update flag
std::fill(audio_spectrum, audio_spectrum + 128, 0); // Clear spectrum buffer
ReceiverModel::Mode receiver_mode = static_cast<ReceiverModel::Mode>(mod);
waveform.set_dirty();
receiver_mode = static_cast<ReceiverModel::Mode>(mod);
bool is_ssb = (mod == static_cast<int32_t>(ReceiverModel::Mode::AMAudio) &&
(field_modulation.selected_index() == 3 || field_modulation.selected_index() == 4));
@ -70,6 +92,7 @@ void FmRadioView::change_mode(int32_t mod) {
radio_bw = index;
receiver_model.set_am_configuration(n);
};
show_hide_gfx(false);
break;
case static_cast<int32_t>(ReceiverModel::Mode::NarrowbandFMAudio):
audio_sampling_rate = audio::Rate::Hz_24000;
@ -82,6 +105,7 @@ void FmRadioView::change_mode(int32_t mod) {
radio_bw = index;
receiver_model.set_nbfm_configuration(n);
};
show_hide_gfx(false);
break;
case static_cast<int32_t>(ReceiverModel::Mode::WidebandFMAudio):
audio_sampling_rate = audio::Rate::Hz_48000;
@ -106,7 +130,6 @@ void FmRadioView::change_mode(int32_t mod) {
audio::set_rate(audio_sampling_rate);
audio::output::start();
receiver_model.set_headphone_volume(receiver_model.headphone_volume()); // WM8731 hack
receiver_model.enable();
}
@ -136,8 +159,10 @@ FmRadioView::FmRadioView(NavigationView& nav)
&btn_fav_9,
&audio,
&waveform,
&rssi});
&rssi,
&gr});
txt_save_help.set_focusable(false);
txt_save_help.visible(false);
for (uint8_t i = 0; i < 12; ++i) {
if (freq_fav_list[i].frequency == 0) {
@ -179,7 +204,20 @@ FmRadioView::FmRadioView(NavigationView& nav)
}
};
waveform.on_select = [this](Waveform&) {
if (receiver_mode != ReceiverModel::Mode::WidebandFMAudio) { // only there is spectrum message
return;
}
show_hide_gfx(!btn_fav_0.hidden());
};
gr.set_theme(themes[current_theme].base_color, themes[current_theme].peak_color);
gr.on_select = [this](GraphEq&) {
current_theme = (current_theme + 1) % themes.size();
gr.set_theme(themes[current_theme].base_color, themes[current_theme].peak_color);
gr.set_paused(false);
};
update_fav_btn_texts();
show_hide_gfx(false);
}
void FmRadioView::on_btn_clicked(uint8_t i) {
@ -226,8 +264,9 @@ FmRadioView::~FmRadioView() {
}
void FmRadioView::on_audio_spectrum() {
if (gr.visible() && audio_spectrum_data) gr.update_audio_spectrum(*audio_spectrum_data);
if (audio_spectrum_data && audio_spectrum_data->db.size() <= 128) {
for (size_t i = 0; i < audio_spectrum_data->db.size(); i++) {
for (size_t i = 0; i < audio_spectrum_data->db.size(); ++i) {
audio_spectrum[i] = ((int16_t)audio_spectrum_data->db[i] - 127) * 256;
}
waveform.set_dirty();

View file

@ -58,13 +58,14 @@ class FmRadioView : public View {
void focus() override;
std::string title() const override { return "FM radio"; };
std::string title() const override { return "Radio"; };
private:
NavigationView& nav_;
RxRadioState radio_state_{};
int16_t audio_spectrum[128]{0};
bool audio_spectrum_update = false;
ReceiverModel::Mode receiver_mode = ReceiverModel::Mode::WidebandFMAudio;
AudioSpectrum* audio_spectrum_data{nullptr};
struct Favorite {
rf::Frequency frequency = 0;
@ -74,7 +75,7 @@ class FmRadioView : public View {
Favorite freq_fav_list[12];
audio::Rate audio_sampling_rate = audio::Rate::Hz_48000;
uint8_t radio_bw = 0;
uint32_t current_theme{0};
app_settings::SettingsManager settings_{
"rx_fmradio",
app_settings::Mode::RX,
@ -114,7 +115,8 @@ class FmRadioView : public View {
{"favlist9_bw"sv, &freq_fav_list[9].bandwidth},
{"favlist10_bw"sv, &freq_fav_list[10].bandwidth},
{"favlist11_bw"sv, &freq_fav_list[11].bandwidth},
{"radio_bw"sv, &radio_bw}}};
{"radio_bw"sv, &radio_bw},
{"theme"sv, &current_theme}}};
RFAmpField field_rf_amp{
{13 * 8, 0 * 16}};
@ -157,7 +159,7 @@ class FmRadioView : public View {
{21 * 8, 10, 6 * 8, 4}};
Waveform waveform{
{0, 20, screen_width, 2 * 16},
{0, 20, UI_POS_MAXWIDTH, 2 * 16},
audio_spectrum,
128,
0,
@ -165,6 +167,8 @@ class FmRadioView : public View {
Theme::getInstance()->bg_darkest->foreground,
true};
GraphEq gr{{2, FMR_BTNGRID_TOP, UI_POS_MAXWIDTH - 4, UI_POS_MAXHEIGHT - FMR_BTNGRID_TOP}, true};
Button btn_fav_0{{2, FMR_BTNGRID_TOP + 0 * 34, 10 * 8, 28}, "---"};
Button btn_fav_1{{2 + 15 * 8, FMR_BTNGRID_TOP + 0 * 34, 10 * 8, 28}, "---"};
Button btn_fav_2{{2, FMR_BTNGRID_TOP + 1 * 34, 10 * 8, 28}, "---"};
@ -185,6 +189,35 @@ class FmRadioView : public View {
void on_audio_spectrum();
void change_mode(int32_t mod);
void show_hide_gfx(bool show);
struct ColorTheme {
Color base_color;
Color peak_color;
};
const std::array<ColorTheme, 20> themes{
ColorTheme{Color(255, 0, 255), Color(255, 255, 255)},
ColorTheme{Color(0, 255, 0), Color(255, 0, 0)},
ColorTheme{Color(0, 0, 255), Color(255, 255, 0)},
ColorTheme{Color(255, 128, 0), Color(255, 0, 128)},
ColorTheme{Color(128, 0, 255), Color(0, 255, 255)},
ColorTheme{Color(255, 255, 0), Color(0, 255, 128)},
ColorTheme{Color(255, 0, 0), Color(0, 128, 255)},
ColorTheme{Color(0, 255, 128), Color(255, 128, 255)},
ColorTheme{Color(128, 128, 128), Color(255, 255, 255)},
ColorTheme{Color(255, 64, 0), Color(0, 255, 64)},
ColorTheme{Color(0, 128, 128), Color(255, 192, 0)},
ColorTheme{Color(0, 255, 0), Color(0, 128, 0)},
ColorTheme{Color(32, 64, 32), Color(0, 255, 0)},
ColorTheme{Color(64, 0, 128), Color(255, 0, 255)},
ColorTheme{Color(0, 64, 0), Color(0, 255, 128)},
ColorTheme{Color(255, 255, 255), Color(0, 0, 255)},
ColorTheme{Color(128, 0, 0), Color(255, 128, 0)},
ColorTheme{Color(0, 128, 255), Color(255, 255, 128)},
ColorTheme{Color(64, 64, 64), Color(255, 0, 0)},
ColorTheme{Color(255, 192, 0), Color(0, 64, 128)}};
MessageHandlerRegistration message_handler_audio_spectrum{
Message::ID::AudioSpectrum,
[this](const Message* const p) {

View file

@ -21,9 +21,9 @@ using namespace portapack;
namespace ui::external_app::gfxeq {
gfxEQView::gfxEQView(NavigationView& nav)
: nav_{nav}, bar_heights(NUM_BARS, 0), prev_bar_heights(NUM_BARS, 0) {
: nav_{nav} {
add_children({&button_frequency, &field_rf_amp, &field_lna, &field_vga,
&button_mood, &field_volume});
&button_mood, &field_volume, &gr});
audio::output::stop();
receiver_model.disable();
@ -69,6 +69,7 @@ gfxEQView::gfxEQView(NavigationView& nav)
};
button_mood.on_select = [this](Button&) { this->cycle_theme(); };
gr.set_theme(themes[current_theme].base_color, themes[current_theme].peak_color);
}
// needed to answer usb serial frequency set
@ -87,110 +88,9 @@ void gfxEQView::focus() {
button_frequency.focus();
}
void gfxEQView::on_show() {
needs_background_redraw = true;
}
void gfxEQView::on_hide() {
needs_background_redraw = true;
}
void gfxEQView::update_audio_spectrum(const AudioSpectrum& spectrum) {
const float bin_frequency_size = 48000.0f / 128;
for (int bar = 0; bar < NUM_BARS; bar++) {
float start_freq = FREQUENCY_BANDS[bar];
float end_freq = FREQUENCY_BANDS[bar + 1];
int start_bin = std::max(1, (int)(start_freq / bin_frequency_size));
int end_bin = std::min(127, (int)(end_freq / bin_frequency_size));
if (start_bin >= end_bin) {
end_bin = start_bin + 1;
}
float total_energy = 0;
int bin_count = 0;
for (int bin = start_bin; bin <= end_bin; bin++) {
total_energy += spectrum.db[bin];
bin_count++;
}
float avg_db = bin_count > 0 ? (total_energy / bin_count) : 0;
// Manually boost highs for better visual balance
float treble_boost = 1.0f;
if (bar == 10)
treble_boost = 1.7f;
else if (bar >= 9)
treble_boost = 1.3f;
else if (bar >= 7)
treble_boost = 1.3f;
// Mid emphasis for a V-shape effect
float mid_boost = 1.0f;
if (bar == 4 || bar == 5 || bar == 6) mid_boost = 1.2f;
float amplified_db = avg_db * treble_boost * mid_boost;
if (amplified_db > 255) amplified_db = 255;
float band_scale = 1.0f;
int target_height = (amplified_db * RENDER_HEIGHT * band_scale) / 255;
if (target_height > RENDER_HEIGHT) {
target_height = RENDER_HEIGHT;
}
// Adjusted to look nice to my eyes
float rise_speed = 0.8f;
float fall_speed = 1.0f;
if (target_height > bar_heights[bar]) {
bar_heights[bar] = bar_heights[bar] * (1.0f - rise_speed) + target_height * rise_speed;
} else {
bar_heights[bar] = bar_heights[bar] * (1.0f - fall_speed) + target_height * fall_speed;
}
}
}
void gfxEQView::render_equalizer(Painter& painter) {
const int num_segments = RENDER_HEIGHT / SEGMENT_HEIGHT;
const ColorTheme& theme = themes[current_theme];
for (int bar = 0; bar < NUM_BARS; bar++) {
int x = HORIZONTAL_OFFSET + bar * (BAR_WIDTH + BAR_SPACING);
int active_segments = (bar_heights[bar] * num_segments) / RENDER_HEIGHT;
if (prev_bar_heights[bar] > active_segments) {
int clear_height = (prev_bar_heights[bar] - active_segments) * SEGMENT_HEIGHT;
int clear_y = screen_height - prev_bar_heights[bar] * SEGMENT_HEIGHT;
painter.fill_rectangle({x, clear_y, BAR_WIDTH, clear_height}, Color(0, 0, 0));
}
for (int seg = 0; seg < active_segments; seg++) {
int y = screen_height - (seg + 1) * SEGMENT_HEIGHT;
if (y < header_height) break;
Color segment_color = (seg >= active_segments - 2 && seg < active_segments) ? theme.peak_color : theme.base_color;
painter.fill_rectangle({x, y, BAR_WIDTH, SEGMENT_HEIGHT - 1}, segment_color);
}
prev_bar_heights[bar] = active_segments;
}
}
void gfxEQView::paint(Painter& painter) {
if (needs_background_redraw) {
painter.fill_rectangle({0, header_height, screen_width, RENDER_HEIGHT}, Color(0, 0, 0));
needs_background_redraw = false;
}
render_equalizer(painter);
}
void gfxEQView::cycle_theme() {
current_theme = (current_theme + 1) % themes.size();
gr.set_theme(themes[current_theme].base_color, themes[current_theme].peak_color);
}
} // namespace ui::external_app::gfxeq

View file

@ -32,45 +32,17 @@ class gfxEQView : public View {
void focus() override;
std::string title() const override { return "gfxEQ"; }
void on_show() override;
void on_hide() override;
void paint(Painter& painter) override;
void on_freqchg(int64_t freq);
private:
static constexpr ui::Dim header_height = 2 * 16;
static constexpr int RENDER_HEIGHT = 288;
static constexpr int NUM_BARS = 11;
static constexpr int BAR_SPACING = 2;
int BAR_WIDTH = (screen_width - (BAR_SPACING * (NUM_BARS - 1))) / NUM_BARS;
static constexpr int HORIZONTAL_OFFSET = 2;
static constexpr int SEGMENT_HEIGHT = 10;
static constexpr std::array<int, NUM_BARS + 1> FREQUENCY_BANDS = {
375, // Bass warmth and low rumble (e.g., deep basslines, kick drum body)
750, // Upper bass punch (e.g., bass guitar punch, kick drum attack)
1500, // Lower midrange fullness (e.g., warmth in vocals, guitar body)
2250, // Midrange clarity (e.g., vocal presence, snare crack)
3375, // Upper midrange bite (e.g., instrument definition, vocal articulation)
4875, // Presence and edge (e.g., guitar bite, vocal sibilance start)
6750, // Lower brilliance (e.g., cymbal shimmer, vocal clarity)
9375, // Brilliance and air (e.g., hi-hat crispness, breathy vocals)
13125, // High treble sparkle (e.g., subtle overtones, synth shimmer)
16875, // Upper treble airiness (e.g., faint harmonics, room ambiance)
20625, // Top-end sheen (e.g., ultra-high harmonics, noise floor)
24375 // Extreme treble limit (e.g., inaudible overtones, signal cutoff, static)
};
struct ColorTheme {
Color base_color;
Color peak_color;
};
NavigationView& nav_;
bool needs_background_redraw{false};
std::vector<int> bar_heights;
std::vector<int> prev_bar_heights;
uint32_t current_theme{0};
const std::array<ColorTheme, 20> themes{
ColorTheme{Color(255, 0, 255), Color(255, 255, 255)},
@ -100,6 +72,7 @@ class gfxEQView : public View {
VGAGainField field_vga{{18 * 8, 0 * 16}};
Button button_mood{{21 * 8, 0, 6 * 8, 16}, "MOOD"};
AudioVolumeField field_volume{{screen_width - 2 * 8, 0 * 16}};
GraphEq gr{{2, UI_POS_DEFAULT_HEIGHT, UI_POS_MAXWIDTH - 4, UI_POS_HEIGHT_REMAINING(2)}, false};
rf::Frequency frequency_value{93100000};
@ -111,16 +84,13 @@ class gfxEQView : public View {
{{"theme", &current_theme},
{"frequency", &frequency_value}}};
void update_audio_spectrum(const AudioSpectrum& spectrum);
void render_equalizer(Painter& painter);
void cycle_theme();
MessageHandlerRegistration message_handler_audio_spectrum{
Message::ID::AudioSpectrum,
[this](const Message* const p) {
const auto message = *reinterpret_cast<const AudioSpectrumMessage*>(p);
this->update_audio_spectrum(*message.data);
this->set_dirty();
this->gr.update_audio_spectrum(*message.data);
}};
MessageHandlerRegistration message_handler_freqchg{

View file

@ -57,6 +57,8 @@ namespace ui {
#define UI_POS_HEIGHT_REMAINING(linenum) ((int)(screen_height - ((linenum)*UI_POS_DEFAULT_HEIGHT)))
// remaining px from the charnum-th character to the right of the screen
#define UI_POS_WIDTH_REMAINING(charnum) ((int)(screen_width - ((charnum)*UI_POS_DEFAULT_WIDTH)))
// px width of the screen
#define UI_POS_MAXHEIGHT (screen_height)
// Escape sequences for colored text; second character is index into term_colors[]
#define STR_COLOR_BLACK "\x1B\x00"

View file

@ -2667,7 +2667,6 @@ bool Waveform::is_clickable() const {
}
void Waveform::getAccessibilityText(std::string& result) {
// no idea what this is in use in any places, but others have it
result = paused_ ? "paused waveform" : "waveform";
}
@ -2689,7 +2688,6 @@ bool Waveform::on_key(const KeyEvent key) {
}
bool Waveform::on_keyboard(const KeyboardEvent key) {
// no idea what this is for, but others have it
if (!clickable_) return false;
if (key == 32 || key == 10) {
@ -2822,6 +2820,204 @@ void Waveform::paint(Painter& painter) {
}
}
/* GraphEq *************************************************************/
GraphEq::GraphEq(
Rect parent_rect,
bool clickable)
: Widget{parent_rect},
clickable_{clickable},
bar_heights(NUM_BARS, 0),
prev_bar_heights(NUM_BARS, 0) {
if (clickable) {
set_focusable(true);
// previous_data.resize(length_, 0);
}
}
void GraphEq::set_parent_rect(const Rect new_parent_rect) {
Widget::set_parent_rect(new_parent_rect);
calculate_params();
}
void GraphEq::calculate_params() {
y_top = screen_rect().top();
RENDER_HEIGHT = parent_rect().height();
BAR_WIDTH = (parent_rect().width() - (BAR_SPACING * (NUM_BARS - 1))) / NUM_BARS;
HORIZONTAL_OFFSET = screen_rect().left();
}
bool GraphEq::is_paused() const {
return paused_;
}
void GraphEq::set_paused(bool paused) {
paused_ = paused;
needs_background_redraw = true;
set_dirty();
}
bool GraphEq::is_clickable() const {
return clickable_;
}
void GraphEq::getAccessibilityText(std::string& result) {
result = paused_ ? "paused GraphEq" : "GraphEq";
}
void GraphEq::getWidgetName(std::string& result) {
result = "GraphEq";
}
bool GraphEq::on_key(const KeyEvent key) {
if (!clickable_) return false;
if (key == KeyEvent::Select) {
set_paused(!paused_);
if (on_select) {
on_select(*this);
}
return true;
}
return false;
}
bool GraphEq::on_keyboard(const KeyboardEvent key) {
if (!clickable_) return false;
if (key == 32 || key == 10) {
set_paused(!paused_);
if (on_select) {
on_select(*this);
}
return true;
}
return false;
}
bool GraphEq::on_touch(const TouchEvent event) {
if (!clickable_) return false;
switch (event.type) {
case TouchEvent::Type::Start:
focus();
return true;
case TouchEvent::Type::End:
set_paused(!paused_);
if (on_select) {
on_select(*this);
}
return true;
default:
return false;
}
}
void GraphEq::set_theme(Color base_color_, Color peak_color_) {
base_color = base_color_;
peak_color = peak_color_;
set_dirty();
}
void GraphEq::update_audio_spectrum(const AudioSpectrum& spectrum) {
const float bin_frequency_size = 48000.0f / 128;
for (int bar = 0; bar < NUM_BARS; bar++) {
float start_freq = FREQUENCY_BANDS[bar];
float end_freq = FREQUENCY_BANDS[bar + 1];
int start_bin = std::max(1, (int)(start_freq / bin_frequency_size));
int end_bin = std::min(127, (int)(end_freq / bin_frequency_size));
if (start_bin >= end_bin) {
end_bin = start_bin + 1;
}
float total_energy = 0;
int bin_count = 0;
for (int bin = start_bin; bin <= end_bin; bin++) {
total_energy += spectrum.db[bin];
bin_count++;
}
float avg_db = bin_count > 0 ? (total_energy / bin_count) : 0;
// Manually boost highs for better visual balance
float treble_boost = 1.0f;
if (bar == 10)
treble_boost = 1.7f;
else if (bar >= 9)
treble_boost = 1.3f;
else if (bar >= 7)
treble_boost = 1.3f;
// Mid emphasis for a V-shape effect
float mid_boost = 1.0f;
if (bar == 4 || bar == 5 || bar == 6) mid_boost = 1.2f;
float amplified_db = avg_db * treble_boost * mid_boost;
if (amplified_db > 255) amplified_db = 255;
float band_scale = 1.0f;
int target_height = (amplified_db * RENDER_HEIGHT * band_scale) / 255;
if (target_height > RENDER_HEIGHT) {
target_height = RENDER_HEIGHT;
}
// Adjusted to look nice to my eyes
float rise_speed = 0.8f;
float fall_speed = 1.0f;
if (target_height > bar_heights[bar]) {
bar_heights[bar] = bar_heights[bar] * (1.0f - rise_speed) + target_height * rise_speed;
} else {
bar_heights[bar] = bar_heights[bar] * (1.0f - fall_speed) + target_height * fall_speed;
}
}
set_dirty();
}
void GraphEq::paint(Painter& painter) {
if (!visible()) return;
if (!is_calculated) { // calc positions first
calculate_params();
is_calculated = true;
}
if (needs_background_redraw) {
painter.fill_rectangle(screen_rect(), Theme::getInstance()->bg_darkest->background);
needs_background_redraw = false;
}
if (paused_) {
return;
}
const int num_segments = RENDER_HEIGHT / SEGMENT_HEIGHT;
uint16_t bottom = screen_rect().bottom();
for (int bar = 0; bar < NUM_BARS; bar++) {
int x = HORIZONTAL_OFFSET + bar * (BAR_WIDTH + BAR_SPACING);
int active_segments = (bar_heights[bar] * num_segments) / RENDER_HEIGHT;
if (prev_bar_heights[bar] > active_segments) {
int clear_height = (prev_bar_heights[bar] - active_segments) * SEGMENT_HEIGHT;
int clear_y = bottom - prev_bar_heights[bar] * SEGMENT_HEIGHT;
painter.fill_rectangle({x, clear_y, BAR_WIDTH, clear_height}, Theme::getInstance()->bg_darkest->background);
}
for (int seg = 0; seg < active_segments; seg++) {
int y = bottom - (seg + 1) * SEGMENT_HEIGHT;
if (y < y_top) break;
Color segment_color = (seg >= active_segments - 2 && seg < active_segments) ? peak_color : base_color;
painter.fill_rectangle({x, y, BAR_WIDTH, SEGMENT_HEIGHT - 1}, segment_color);
}
prev_bar_heights[bar] = active_segments;
}
}
/* VuMeter **************************************************************/
VuMeter::VuMeter(

View file

@ -1015,6 +1015,66 @@ class Waveform : public Widget {
bool if_ever_painted_pause{false}; // for prevent the "hidden" label keeps painting and being expensive
};
class GraphEq : public Widget {
public:
std::function<void(GraphEq&)> on_select{};
GraphEq(Rect parent_rect, bool clickable = false);
GraphEq(const GraphEq&) = delete;
GraphEq(GraphEq&&) = delete;
GraphEq& operator=(const GraphEq&) = delete;
GraphEq& operator=(GraphEq&&) = delete;
bool is_paused() const;
void set_paused(bool paused);
bool is_clickable() const;
void paint(Painter& painter) override;
bool on_key(const KeyEvent key) override;
bool on_touch(const TouchEvent event) override;
bool on_keyboard(const KeyboardEvent event) override;
void set_parent_rect(const Rect new_parent_rect) override;
void getAccessibilityText(std::string& result) override;
void getWidgetName(std::string& result) override;
void update_audio_spectrum(const AudioSpectrum& spectrum);
void set_theme(Color base_color, Color peak_color);
private:
bool is_calculated{false};
bool paused_{false};
bool clickable_{false};
bool needs_background_redraw{true}; // Redraw background only when needed.
Color base_color = Color(255, 0, 255);
Color peak_color = Color(255, 255, 255);
std::vector<ui::Dim> bar_heights;
std::vector<ui::Dim> prev_bar_heights;
ui::Dim y_top = 2 * 16;
ui::Dim RENDER_HEIGHT = 288;
ui::Dim BAR_WIDTH = 20;
ui::Dim HORIZONTAL_OFFSET = 2;
static const int NUM_BARS = 11;
static const int BAR_SPACING = 2;
static const int SEGMENT_HEIGHT = 10;
static constexpr std::array<int16_t, NUM_BARS + 1> FREQUENCY_BANDS = {
375, // Bass warmth and low rumble (e.g., deep basslines, kick drum body)
750, // Upper bass punch (e.g., bass guitar punch, kick drum attack)
1500, // Lower midrange fullness (e.g., warmth in vocals, guitar body)
2250, // Midrange clarity (e.g., vocal presence, snare crack)
3375, // Upper midrange bite (e.g., instrument definition, vocal articulation)
4875, // Presence and edge (e.g., guitar bite, vocal sibilance start)
6750, // Lower brilliance (e.g., cymbal shimmer, vocal clarity)
9375, // Brilliance and air (e.g., hi-hat crispness, breathy vocals)
13125, // High treble sparkle (e.g., subtle overtones, synth shimmer)
16875, // Upper treble airiness (e.g., faint harmonics, room ambiance)
20625, // Top-end sheen (e.g., ultra-high harmonics, noise floor)
24375 // Extreme treble limit (e.g., inaudible overtones, signal cutoff, static)
};
void calculate_params(); // re calculate some parameters based on parent_rect()
};
class VuMeter : public Widget {
public:
VuMeter(Rect parent_rect, uint32_t LEDs, bool show_max);