mayhem-firmware/firmware/application/ui/ui_spectrum.hpp

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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 {
class FrequencyScale : public Widget {
public:
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void on_show() override;
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void set_spectrum_sampling_rate(const int new_sampling_rate);
void set_channel_filter(const int pass_frequency, const int stop_frequency);
void show_cursor(const bool v);
void set_cursor_position(const int32_t value);
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void paint(Painter& painter) override;
private:
static constexpr int filter_band_height = 4;
bool _show_cursor { false };
int32_t cursor_position { 0 };
int spectrum_sampling_rate { 0 };
const int spectrum_bins = std::tuple_size<decltype(ChannelSpectrum::db)>::value;
int channel_filter_pass_frequency { 0 };
int channel_filter_stop_frequency { 0 };
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void clear();
void clear_background(Painter& painter, const Rect r);
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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:
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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:
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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();
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WaterfallWidget(const WaterfallWidget&) = delete;
WaterfallWidget(WaterfallWidget&&) = delete;
WaterfallWidget& operator=(const WaterfallWidget&) = delete;
WaterfallWidget& operator=(WaterfallWidget&&) = delete;
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void on_show() override;
void on_hide() override;
void on_focus() override;
void on_blur() override;
bool on_encoder(const EncoderEvent delta) override;
bool on_key(const KeyEvent key) override;
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void set_parent_rect(const Rect new_parent_rect) override;
void set_fft_widget(const bool show);
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void paint(Painter& painter) override;
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private:
void on_tick_second();
static constexpr ui::Dim audio_spectrum_height = 2 * 16;
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WaterfallView waterfall_view { };
FrequencyScale frequency_scale { };
ChannelSpectrumFIFO* channel_fifo { nullptr };
AudioSpectrumFIFO* audio_fifo { nullptr };
std::unique_ptr<Widget> fft_widget { };
bool _blink { false };
int sampling_rate { 0 };
int32_t cursor_position { 0 };
SignalToken signal_token_tick_second { };
int16_t audio_spectrum[128] { 0 };
ui::Rect waterfall_normal_rect { };
ui::Rect waterfall_reduced_rect { };
ui::Rect fft_widget_rect { };
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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_config {
Message::ID::AudioSpectrumConfig,
[this](const Message* const p) {
const auto message = *reinterpret_cast<const AudioSpectrumConfigMessage*>(p);
this->audio_fifo = message.fifo;
}
};
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_fifo ) {
AudioSpectrum audio_spectrum;
while( audio_fifo->out(audio_spectrum) ) {
// Unstack everything until and only use last buffer (should only be one max. ready per frame)
}
this->on_audio_spectrum(audio_spectrum);
}
}
};
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void on_channel_spectrum(const ChannelSpectrum& spectrum);
void on_audio_spectrum(const AudioSpectrum& spectrum);
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};
} /* namespace spectrum */
} /* namespace ui */
#endif/*__UI_SPECTRUM_H__*/