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/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* 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, 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __UI_SPECTRUM_H__
#define __UI_SPECTRUM_H__
#include "ui.hpp"
#include "ui_widget.hpp"
#include "event_m0.hpp"
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#include "message.hpp"
#include <cstdint>
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#include <cstddef>
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namespace ui {
namespace spectrum {
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class AudioSpectrumView : public View {
public:
AudioSpectrumView(const Rect parent_rect);
void paint(Painter& painter) override;
void on_audio_spectrum(const AudioSpectrum* spectrum);
private:
static constexpr int cursor_band_height = 4;
int16_t audio_spectrum[128]{0};
Labels labels{
{{6 * 8, 0 * 16}, "Hz", Color::light_grey()}};
NumberField field_frequency{
{0 * 8, 0 * 16},
5,
{0, 48000},
48000 / 240,
' '};
Waveform waveform{
{0, 1 * 16 + cursor_band_height, 30 * 8, 2 * 16},
audio_spectrum,
128,
0,
false,
Color::white()};
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};
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class FrequencyScale : public Widget {
public:
std::function<void(int32_t offset)> on_select{};
void on_show() override;
void on_focus() override;
void on_blur() override;
bool on_encoder(const EncoderEvent delta) override;
bool on_key(const KeyEvent key) override;
void set_spectrum_sampling_rate(const int new_sampling_rate);
void set_channel_filter(const int low_frequency, const int high_frequency, const int transition);
void paint(Painter& painter) override;
private:
static constexpr int filter_band_height = 4;
void on_tick_second();
bool _blink{false};
int32_t cursor_position{0};
SignalToken signal_token_tick_second{};
int spectrum_sampling_rate{0};
const int spectrum_bins = std::tuple_size<decltype(ChannelSpectrum::db)>::value;
int channel_filter_low_frequency{0};
int channel_filter_high_frequency{0};
int channel_filter_transition{0};
void clear();
void clear_background(Painter& painter, const Rect r);
void draw_frequency_ticks(Painter& painter, const Rect r);
void draw_filter_ranges(Painter& painter, const Rect r);
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};
class WaterfallView : public Widget {
public:
void on_show() override;
void on_hide() override;
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void paint(Painter& painter) override;
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void on_channel_spectrum(const ChannelSpectrum& spectrum);
private:
void clear();
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};
class WaterfallWidget : public View {
public:
std::function<void(int32_t offset)> on_select{};
WaterfallWidget(const bool cursor = false);
WaterfallWidget(const WaterfallWidget&) = delete;
WaterfallWidget(WaterfallWidget&&) = delete;
WaterfallWidget& operator=(const WaterfallWidget&) = delete;
WaterfallWidget& operator=(WaterfallWidget&&) = delete;
void on_show() override;
void on_hide() override;
void set_parent_rect(const Rect new_parent_rect) override;
void show_audio_spectrum_view(const bool show);
void paint(Painter& painter) override;
private:
void update_widgets_rect();
const Rect audio_spectrum_view_rect{0 * 8, 0 * 16, 30 * 8, 2 * 16 + 20};
static constexpr Dim audio_spectrum_height = 16 * 2 + 20;
static constexpr Dim scale_height = 20;
WaterfallView waterfall_view{};
FrequencyScale frequency_scale{};
ChannelSpectrumFIFO* channel_fifo{nullptr};
AudioSpectrum* audio_spectrum_data{nullptr};
bool audio_spectrum_update{false};
std::unique_ptr<AudioSpectrumView> audio_spectrum_view{};
int sampling_rate{0};
int32_t cursor_position{0};
ui::Rect waterfall_normal_rect{};
ui::Rect waterfall_reduced_rect{};
MessageHandlerRegistration message_handler_channel_spectrum_config{
Message::ID::ChannelSpectrumConfig,
[this](const Message* const p) {
const auto message = *reinterpret_cast<const ChannelSpectrumConfigMessage*>(p);
this->channel_fifo = message.fifo;
}};
MessageHandlerRegistration message_handler_audio_spectrum{
Message::ID::AudioSpectrum,
[this](const Message* const p) {
const auto message = *reinterpret_cast<const AudioSpectrumMessage*>(p);
this->audio_spectrum_data = message.data;
this->audio_spectrum_update = true;
}};
MessageHandlerRegistration message_handler_frame_sync{
Message::ID::DisplayFrameSync,
[this](const Message* const) {
if (this->channel_fifo) {
ChannelSpectrum channel_spectrum;
while (channel_fifo->out(channel_spectrum)) {
this->on_channel_spectrum(channel_spectrum);
}
}
if (this->audio_spectrum_update) {
this->audio_spectrum_update = false;
this->on_audio_spectrum();
}
}};
void on_channel_spectrum(const ChannelSpectrum& spectrum);
void on_audio_spectrum();
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};
} /* namespace spectrum */
} /* namespace ui */
#endif /*__UI_SPECTRUM_H__*/