6. Knobs Page Creation

6.1. Knobs Creation Main

A new knobs page is created with the function page_knobs.

<<knobs_function_declarations>>=

static void page_knobs(monolith_page *pg);

<<knobs_functions>>=

static void page_knobs(monolith_page *pg)
{
    page_knobs_d *knobs;
    knobs = calloc(1, sizeof(page_knobs_d));
    if(knobs == NULL) return;
    page_knobs_init(pg, knobs);
    if(knobs_type == 0)
        page_knobs_runtime_init(monolith_page_monolith(pg));
<<knobs_assign_callbacks>>
    monolith_page_data_set(pg, knobs);
}

6.2. Knobs Set Typeflag

<<knobs_assign_callbacks>>=

monolith_page_type_set(pg, knobs_type);

6.3. Knobs Open

When a knobs page is opened, the monome state is set.

<<knobs_function_declarations>>=

static void knobs_open(monolith_page *pg);

<<knobs_functions>>=

static void knobs_open(monolith_page *pg)
{
    page_knobs_d *knobs;
    knobs = monolith_page_data_get(pg);
    if(knobs == NULL) return;
    monolith_page_mstate_recall(knobs->mstate);
    monolith_page_arcstate_recall(knobs->astate);
}

<<knobs_assign_callbacks>>=

monolith_page_open_set(pg, knobs_open);

6.4. Knobs Free

<<knobs_function_declarations>>=

static void knobs_free(monolith_page *pg);

<<knobs_functions>>=

static void knobs_free(monolith_page *pg)
{
    page_knobs_d *knobs;
    knobs = (page_knobs_d *)monolith_page_data_get(pg);
    if(knobs == NULL) return;
    page_knobs_cleanup(knobs);
    free(knobs);
}

<<knobs_assign_callbacks>>=

monolith_page_free_set(pg, knobs_free);

6.5. Knobs Press Callback

Used to select the value to modify for the current knob.

<<knobs_function_declarations>>=

static void knobs_press(monolith_page *pg, int x, int y, int s);

<<knobs_functions>>=

static void knobs_press(monolith_page *pg, int x, int y, int s)
{
    int lane, kx, ky;
    page_knobs_d *knobs;
    if (s == 0) return;
    grid2knobs(x, y, &lane, &kx, &ky);
    knobs = monolith_page_data_get(pg);
    knobs_select(knobs, lane, kx, ky);
    knobs_draw_lane(knobs, lane);
}

<<knobs_assign_callbacks>>=

monolith_page_press_set(pg, knobs_press);

6.6. Knobs Turn Callback

A wildcard knob. Can be set to control any of the 128 knob values.

<<knobs_function_declarations>>=

static void knobs_turn(monolith_page *pg, int s);

<<knobs_functions>>=

static void knobs_turn(monolith_page *pg, int s)
{
    int aux_knob;
    GFFLT val;
    page_knobs_d *knobs;
    int lane, sel;
    int x, y;

    knobs = monolith_page_data_get(pg);
    aux_knob = knobs->aux_knob;

    if (aux_knob < 0) return;
    if (aux_knob >= 128) return;

    val = knobs->vals[aux_knob];

    val += s * knobs->inc * 3;

    if (val < 0) val = 0;
    if (val > 1) val = 1;

    knobs->vals[aux_knob] = val;

    x = aux_knob % 16;
    y = aux_knob / 16;

    lane = x / 4;
    sel = y * 4 + (x % 4);

    if (knobs->selected[lane] == sel) {
        knobs_draw_lane(knobs, lane);
    }
}

<<knobs_assign_callbacks>>=

monolith_page_turn_set(pg, knobs_turn);

6.7. Knobs Delta Callback

This is used to change the value of the currently selected knob.

<<knobs_function_declarations>>=

static void knobs_delta(monolith_page *pg, int n, int delta);

<<knobs_functions>>=

static void knobs_delta(monolith_page *pg, int n, int delta)
{
    page_knobs_d *knobs;
    knobs = monolith_page_data_get(pg);
    knobs_increment(knobs, n, delta);
    knobs_draw_lane(knobs, n);
}

<<knobs_assign_callbacks>>=

monolith_page_delta_set(pg, knobs_delta);

prev | home | next