leveledit.c

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#include "leveledit.h"

#include "cfg/cfg_menu.h"
#include <cfg/macros.h> /* MAX() */

#include <drv/kbd.h>
#include <drv/timer.h>

#include <gui/levelbar.h>

#include <cpu/pgm.h>

#include <gfx/text.h>
#include <gfx/font.h>

#if CONFIG_MENU_MENUBAR
#include <gui/menubar.h>
#endif

#warning FIXME: Revise me!

#define LBAR_HEIGHT 16

void level_edit(struct LevelEdit *lev)
{
#if CONFIG_MENU_MENUBAR
    /* Labels for menubars */
    enum LabelId ch_labels[] = { LABEL_C1PLUS2, LABEL_CH_1, LABEL_CH_2 };
    const_iptr_t labels[] =
    {
        (const_iptr_t)LABEL_BACK,
        (const_iptr_t)LABEL_MINUS,
        (const_iptr_t)LABEL_PLUS,
        (const_iptr_t)LABEL_EMPTY
    };
    struct MenuBar mb;
#endif /* CONFIG_MENU_MENUBAR */

    struct LevelBar bar1, bar2;
    keymask_t keys, old_rpt_mask;
    int step, rep_step;

    rep_step = MAX(lev->step, ((lev->max - lev->min) / 200));
    step = lev->step;

    // Allow keys repetition.
    old_rpt_mask = kbd_setRepeatMask(K_UP | K_DOWN);

    text_clear(lev->bitmap);
    //text_style(STYLEF_UNDERLINE, STYLEF_UNDERLINE);
    text_puts(lev->title, lev->bitmap);
    //text_style(0, STYLEF_UNDERLINE);

    if (lev->type & LEVELEDIT_DOUBLE)
    {
        int chn = 0;  /* edit both channels */

        /* Levelbars init */
        lbar_init(&bar1, lev->bitmap, LBAR_HORIZONTAL,
                lev->min, lev->max, *lev->ch1_val, 0, 16, lev->bitmap->width / 2 - 1, 23);
        lbar_init(&bar2, lev->bitmap, LBAR_HORIZONTAL,
                lev->min, lev->max, *lev->ch2_val, lev->bitmap->width / 2 + 1, 16, lev->bitmap->width, 23);

        #if CONFIG_MENU_MENUBAR
            labels[3] = (const_iptr_t)ch_labels[chn];
            mbar_init(&mb, lev->bitmap, labels, countof(labels));
            mbar_draw(&mb);
        #endif /* CONFIG_MENU_MENUBAR */

        /* Input loop for double level setting */
        for (;;)
        {
            #if CONFIG_LEVELEDIT_TIMEOUT != 0
                ticks_t idle_timeout = timer_clock();
            #endif
            do
            {
                if (lev->display_hook)
                    lev->display_hook(lev);
                else
                {
                    text_xprintf(lev->bitmap, 1, 0, TEXT_CENTER | TEXT_FILL, lev->unit);
                    PGM_FUNC(text_xprintf)(lev->bitmap, 1, 3, 0, PGM_STR("%d"), *lev->ch1_val);
                    PGM_FUNC(text_xprintf)(lev->bitmap, 1, 14, 0, PGM_STR("%d"), *lev->ch2_val);

                    lbar_setLevel(&bar1, *lev->ch1_val);
                    lbar_setLevel(&bar2, *lev->ch2_val);
                    lbar_draw(&bar1);
                    lbar_draw(&bar2);
                }

                #if CONFIG_LEVELEDIT_TIMEOUT != 0
                    if (timer_clock() - idle_timeout > ms_to_ticks(CONFIG_LEVELEDIT_TIMEOUT))
                    {
                        /* Accept input implicitly */
                        keys = K_OK;
                        break;
                    }
                #endif
            }
            while (!(keys = kbd_peek()));

            if (keys & K_CANCEL)
                break;

            if (keys & K_OK)
            {
                chn = (chn + 1) % 3;

                #if CONFIG_MENU_MENUBAR
                    labels[3] = (const_iptr_t)ch_labels[chn];
                    mbar_draw(&mb);
                #endif /* CONFIG_MENU_MENUBAR */
            }

            /* Increment step to achieve greater accelerations on larger values */
            if (keys & K_REPEAT)
                step = MIN(rep_step, step + 1);
            else
                step = lev->step;

            if (keys & (K_UP | K_DOWN))
            {
                if (keys & K_UP)
                {
                    /* If changing both channels (chn == 0), don't change
                     * level if one of two is at min or max */
                    if (chn != 0 ||
                            (*lev->ch1_val + step <= lev->max
                             && *lev->ch2_val + step <= lev->max))
                    {
                        /* If chn == 0 change both channels */
                        if (chn != 2)
                        {
                            *lev->ch1_val += step;
                            if (*lev->ch1_val > lev->max)
                                *lev->ch1_val = lev->max;
                        }
                        if (chn != 1)
                        {
                            *lev->ch2_val += step;
                            if (*lev->ch2_val > lev->max)
                                *lev->ch2_val = lev->max;
                        }
                    }
                }
                else
                {
                    if (chn != 0 ||
                            (*lev->ch1_val - step >= lev->min
                             && *lev->ch2_val - step >= lev->min))
                    {
                        if (chn != 2)
                        {
                            *lev->ch1_val -= step;
                            if (*lev->ch1_val < lev->min)
                                *lev->ch1_val = lev->min;
                        }
                        if (chn != 1)
                        {
                            *lev->ch2_val -= step;
                            if (*lev->ch2_val < lev->min)
                                *lev->ch2_val = lev->min;
                        }
                    }
                }

                if (lev->set_hook)
                    lev->set_hook();
            }
        } // end for(;;)
    }
    else
    {
        const PGM_ATTR char *fmt = lev->unit ? PGM_STR("%d %s") : PGM_STR("%d");

/*
        const int textw = MAX(PGM_FUNC(text_widthf)(lev->bitmap, fmt, lev->max, lev->unit),
                        PGM_FUNC(text_widthf)(lev->bitmap, fmt, lev->min, lev->unit));

        const coord_t barlen = lev->bitmap->width - 6 - textw;
*/
        const coord_t barlen = lev->bitmap->width;
        const coord_t barvtop = lev->bitmap->height / 2 - LBAR_HEIGHT/2 + lev->bitmap->font->height;
        lbar_init(&bar1, lev->bitmap, LBAR_HORIZONTAL,
              lev->min, lev->max, *lev->ch1_val,
              0, barvtop, barlen,  barvtop + LBAR_HEIGHT);

        #if CONFIG_MENU_MENUBAR
            mbar_init(&mb, lev->bitmap, labels, countof(labels));
            mbar_draw(&mb);
        #endif /* CONFIG_MENU_MENUBAR */

        /* Input loop for single level setting */
        for (;;)
        {
            #if CONFIG_LEVELEDIT_TIMEOUT != 0
                ticks_t idle_timeout = timer_clock();
            #endif
            do
            {
                if (lev->display_hook)
                    lev->display_hook(lev);
                else
                {
                    if (lev->type != LEVELEDIT_NOBAR)
                    {
                        lbar_setLevel(&bar1, *lev->ch1_val);
                        lbar_draw(&bar1);
                    }
                    PGM_FUNC(text_xyprintf)(lev->bitmap, 0, bar1.y1 - lev->bitmap->font->height,
                        TEXT_CENTER | TEXT_FILL, fmt, *lev->ch1_val, lev->unit);
                }

                #if CONFIG_LEVELEDIT_TIMEOUT != 0
                    if (timer_clock() - idle_timeout > CONFIG_LEVELEDIT_TIMEOUT)
                    {
                        /* Accept input implicitly */
                        keys = K_CANCEL;
                        break;
                    }
                #endif

            }
            while (!(keys = kbd_peek()));

            if (keys & K_CANCEL)
                break;

            /* Increment step to achieve greater accelerations on larger values */
            if (keys & K_REPEAT)
                step = MIN(rep_step, step + 1);
            else
                step = lev->step;

            if (keys & K_UP)
            {
                *lev->ch1_val += step;
                if (*lev->ch1_val > lev->max)
                    *lev->ch1_val = lev->max;
            }

            if (keys & K_DOWN)
            {
                *lev->ch1_val -= step;
                if (*lev->ch1_val < lev->min)
                    *lev->ch1_val = lev->min;
            }

            if (lev->set_hook)
                lev->set_hook();
        }
    }

    kbd_setRepeatMask(old_rpt_mask);
}

void level_init(struct LevelEdit *lev,
        int type,
        struct Bitmap *bmp, const char *title, const char *unit,
        int min, int max, int step,
        int *ch1_val, int *ch2_val,
        level_set_callback *set_hook, display_callback *display_hook)
{
    lev->type   = type;
    lev->bitmap = bmp;
    lev->title  = title;
    lev->unit   = unit;
    lev->min    = min;
    lev->max    = max;
    lev->step   = step;

    lev->ch1_val = ch1_val;
    lev->ch2_val = ch2_val;
    lev->set_hook     = set_hook;
    lev->display_hook = display_hook;
}