portapack-mayhem/firmware/application/external/metronome/ui_metronome.hpp

/*
 * copyleft 2024 sommermorgentraum
 *
 * 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_METRONOME_H__
#define __UI_METRONOME_H__

#include "ui_navigation.hpp"
#include "ui_receiver.hpp"
#include "audio.hpp"
#include "ch.h"

#include <deque>

namespace ui::external_app::metronome {

class MetronomeView : public View {
   public:
    MetronomeView(NavigationView& nav);
    ~MetronomeView();
    MetronomeView(const MetronomeView& other) = delete;
    MetronomeView& operator=(const MetronomeView& other) = delete;

    void focus() override;

    std::string title() const override { return "Metronome"; };

   private:
    NavigationView& nav_;

    void beep_accent_beat();    // e.g. 3 of 3/4 beat
    void beep_unaccent_beat();  // e.g. 4 of 3/4 beat
    void stop_play();
    void play();
    // void paint(Painter& painter) override;

    Thread* thread{nullptr};
    bool should_exit{false};
    static msg_t static_fn(void* arg);
    void run();

    bool playing_{false};
    uint32_t current_beat_{0};

    Labels labels{
        {{0 * 8, 1 * 16}, "BPM:", Theme::getInstance()->fg_light->foreground},
        {{0 * 8, 2 * 16}, "Accent Beep Tune:", Theme::getInstance()->fg_light->foreground},
        {{0 * 8, 3 * 16}, "Unaccent Beep Tune:", Theme::getInstance()->fg_light->foreground},
        {{0 * 8, 4 * 16}, "Rhythm:", Theme::getInstance()->fg_light->foreground},
        {{(sizeof("Rhythm:") + 1) * 8 + 4 * 8, 4 * 16}, "/", Theme::getInstance()->fg_light->foreground},
        {{0 * 8, 5 * 16}, "Beep Flash Duration:", Theme::getInstance()->fg_light->foreground},
        {{0 * 8, 6 * 16}, "Volume:", Theme::getInstance()->fg_light->foreground}};

    NumberField field_bpm{
        {(sizeof("BPM:") + 1) * 8, 1 * 16},
        4,
        {1, 1000},
        1,
        ' '};

    Button button_enter_tap_tempo{
        {(sizeof("BPM:") + 6) * 8, 1 * 16, (sizeof("Tap Tempo") + 3) * 8, 16},
        "Tap Tempo",
    };

    NumberField field_rythm_unaccent_time{// e.g. 3 in 3/4 beat
                                          {(sizeof("Rhythm:") + 1) * 8, 4 * 16},
                                          2,
                                          {1, 99},
                                          1,
                                          ' '};

    NumberField field_rythm_accent_time{// e.g. 4 in 3/4 beat
                                        {(sizeof("Rhythm:") + 1) * 8 + 5 * 8, 4 * 16},
                                        2,
                                        {1, 99},
                                        1,
                                        ' '};

    NumberField field_beep_flash_duration{
        {(sizeof("Beep Flash Duration:") + 1) * 8, 5 * 16},
        3,
        {10, 999},
        1,
        ' '};

    NumberField field_accent_beep_tune{
        {(sizeof("Accent Beep Tune:") + 1) * 8, 2 * 16},
        5,
        {380, 24000},
        20,
        ' '};

    NumberField field_unaccent_beep_tune{
        {(sizeof("Unaccent Beep Tune:") + 1) * 8, 3 * 16},
        5,
        {380, 24000},
        20,
        ' '};

    AudioVolumeField field_volume{
        {(sizeof("Volume:") + 1) * 8, 6 * 16}};

    NewButton button_play_stop{
        {0 * 16, 16 * 16, screen_width, screen_height - 16 * 16},
        {},
        &bitmap_icon_replay,
        Theme::getInstance()->fg_red->foreground};

    ProgressBar progressbar{
        {0 * 16, 8 * 16, screen_width, screen_height - 14 * 16}};
};

class MetronomeTapTempoView : public View {
   public:
    std::function<void(uint16_t)> on_apply{};

    MetronomeTapTempoView(NavigationView& nav, uint16_t bpm);

    std::string title() const override { return "Tap.T"; };
    void focus() override;
    void paint(Painter& painter) override;

   private:
    void on_tap(Painter& painter);

    NavigationView& nav_;

    uint16_t bpm_{0};
    uint16_t bpm_when_entered_{0};          // this pass from MetronomeView and need to restore if user cancel
    std::deque<uint16_t> bpms_deque = {0};  // take average for recent taps to debounce
    uint32_t last_tap_time{0};

    std::string input_buffer{""};  // needed by text_prompt

    Button button_input{
        {0, 0, screen_width, 2 * 16},
        "Input BPM"};

    Button button_tap{
        {0, 8 * 16, screen_width, 7 * 16},
        "Tap BPM"};

    Button button_cancel{
        {1, 17 * 16, screen_width / 2 - 4, 2 * 16},
        "Cancel"};

    Button button_apply{
        {1 + screen_width / 2 + 1, 17 * 16, screen_width / 2 - 4, 2 * 16},
        "Apply"};
};

}  // namespace ui::external_app::metronome

#endif /*__UI_METRONOME_H__*/