Momentum-Apps/input/songinfo.c

#include "songinfo.h"

#include <gui/modules/text_input.h>

void edit_songinfo_param(FlizzerTrackerApp *tracker, uint8_t selected_param, int8_t delta)
{
    if (!(tracker->current_digit))
    {
        delta *= 16;
    }

    switch (selected_param)
    {
        case SI_PATTERNPOS:
        {
            if ((int16_t)tracker->song.pattern_length + (int16_t)delta > 1 && (int16_t)tracker->song.pattern_length + (int16_t)delta <= 0xff)
            {
                tracker->song.pattern_length += delta;
            }

            break;
        }

        case SI_SEQUENCEPOS:
        {
            if ((int16_t)tracker->song.num_sequence_steps + (int16_t)delta > 1 && (int16_t)tracker->song.num_sequence_steps + (int16_t)delta <= 0xff)
            {
                tracker->song.num_sequence_steps += delta;
            }

            break;
        }

        case SI_SONGSPEED:
        {
            if ((int16_t)tracker->song.speed + (int16_t)delta > 1 && (int16_t)tracker->song.speed + (int16_t)delta <= 0xff)
            {
                tracker->song.speed += delta;
            }

            break;
        }

        case SI_SONGRATE:
        {
            if ((int16_t)tracker->song.rate + (int16_t)delta > 1 && (int16_t)tracker->song.rate + (int16_t)delta <= 0xff)
            {
                tracker->song.rate += delta;
            }

            break;
        }

        case SI_MASTERVOL:
        {
            if ((int16_t)tracker->tracker_engine.master_volume + (int16_t)delta > 0 && (int16_t)tracker->tracker_engine.master_volume + (int16_t)delta <= 0xff)
            {
                tracker->tracker_engine.master_volume += delta;
            }

            break;
        }

        case SI_SONGNAME:
        {
            break;
        }

        default:
            break;
    }
}

void songinfo_edit_event(FlizzerTrackerApp *tracker, FlizzerTrackerEvent *event)
{
    if (event->input.key == InputKeyOk && event->input.type == InputTypeShort && !tracker->tracker_engine.playing)
    {
        tracker->editing = !tracker->editing;
    }

    if (event->input.key == InputKeyRight && event->input.type == InputTypeShort && tracker->editing)
    {
        tracker->current_digit++;

        if (tracker->current_digit > 1)
        {
            tracker->selected_param++;

            tracker->current_digit = 0;

            if (tracker->selected_param > SI_PARAMS - 1)
            {
                tracker->selected_param = 0;
            }
        }
    }

    if (event->input.key == InputKeyLeft && event->input.type == InputTypeShort && tracker->editing)
    {
        tracker->current_digit--;

        if (tracker->current_digit > 1) // unsigned int overflow
        {
            tracker->selected_param--;

            tracker->current_digit = 1;

            if (tracker->selected_param > SI_PARAMS - 1) // unsigned int overflow
            {
                tracker->selected_param = SI_PARAMS - 1;
            }
        }
    }

    if (event->input.key == InputKeyDown && event->input.type == InputTypeShort)
    {
        if (tracker->editing)
        {
            edit_songinfo_param(tracker, tracker->selected_param, -1);
        }
    }

    if (event->input.key == InputKeyUp && event->input.type == InputTypeShort)
    {
        if (tracker->editing)
        {
            edit_songinfo_param(tracker, tracker->selected_param, 1);
        }
    }
}