Class: Curses::Field

Inherits:
Data
  • Object
show all
Defined in:
ext/curses/curses.c

Instance Method Summary collapse

Constructor Details

#initialize(height, width, toprow, leftcol, offscreen, nbuffers) ⇒ Object

call-seq:

new(height, width, toprow, leftcol, offscreen, nbuffers)

Construct a new Curses::Field.



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# File 'ext/curses/curses.c', line 3756

static VALUE
field_initialize(VALUE obj, VALUE height, VALUE width,
		 VALUE toprow, VALUE leftcol, VALUE offscreen, VALUE nbuffers)
{
    struct fielddata *fieldp;

    curses_init_screen();
    TypedData_Get_Struct(obj, struct fielddata, &fielddata_type, fieldp);
    if (fieldp->field) {
	rb_raise(rb_eRuntimeError, "already initialized field");
    }
    fieldp->field = new_field(NUM2INT(height), NUM2INT(width),
			      NUM2INT(toprow), NUM2INT(leftcol),
			      NUM2INT(offscreen), NUM2INT(nbuffers));
    if (fieldp->field == NULL) {
	check_curses_error(errno);
    }

    return obj;
}

Instance Method Details

#back ⇒ Object

call-seq:

back

Get the background attribute of the field.



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# File 'ext/curses/curses.c', line 3879

static VALUE
field_get_back(VALUE obj)
{
    struct fielddata *fieldp;

    GetFIELD(obj, fieldp);
    return CHTYPE2NUM(field_back(fieldp->field));
}

#back=(attr) ⇒ Object

call-seq:

set_back(attr)

Set the background attribute of the field.



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# File 'ext/curses/curses.c', line 3860

static VALUE
field_set_back(VALUE obj, VALUE attr)
{
    struct fielddata *fieldp;

    GetFIELD(obj, fieldp);
    set_field_back(fieldp->field, NUM2CHTYPE(attr));

    return attr;
}

#buffer(buf) ⇒ Object

call-seq:

buffer(buf)

Get the numbered buffer of the field.



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# File 'ext/curses/curses.c', line 3805

static VALUE
field_buffer_m(VALUE obj, VALUE buf)
{
    struct fielddata *fieldp;
    char *s;

    GetFIELD(obj, fieldp);
    s = field_buffer(fieldp->field, NUM2INT(buf));
    return rb_external_str_new_with_enc(s, strlen(s), terminal_encoding);
}

#dynamic_height ⇒ Object 



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# File 'ext/curses/curses.c', line 4015

static VALUE
field_dynamic_height(VALUE obj)
{
    struct fielddata *fieldp;
    int error, val;

    GetFIELD(obj, fieldp);
    error = dynamic_field_info(fieldp->field, &val, NULL, NULL);
    check_curses_error(error);
    return INT2NUM(val);
}

#dynamic_width ⇒ Object 



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# File 'ext/curses/curses.c', line 4027

static VALUE
field_dynamic_width(VALUE obj)
{
    struct fielddata *fieldp;
    int error, val;

    GetFIELD(obj, fieldp);
    error = dynamic_field_info(fieldp->field, NULL, &val, NULL);
    check_curses_error(error);
    return INT2NUM(val);
}

#fore ⇒ Object

call-seq:

fore

Get the foreground attribute of the field.



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# File 'ext/curses/curses.c', line 3843

static VALUE
field_get_fore(VALUE obj)
{
    struct fielddata *fieldp;

    GetFIELD(obj, fieldp);
    return CHTYPE2NUM(field_fore(fieldp->field));
}

#fore=(attr) ⇒ Object

call-seq:

set_fore(attr)

Set the foreground attribute of the field.



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# File 'ext/curses/curses.c', line 3824

static VALUE
field_set_fore(VALUE obj, VALUE attr)
{
    struct fielddata *fieldp;

    GetFIELD(obj, fieldp);
    set_field_fore(fieldp->field, NUM2CHTYPE(attr));

    return attr;
}

#height ⇒ Object 



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# File 'ext/curses/curses.c', line 3943

static VALUE
field_height(VALUE obj)
{
    struct fielddata *fieldp;
    int error, val;

    GetFIELD(obj, fieldp);
    error = field_info(fieldp->field, &val, NULL, NULL, NULL, NULL, NULL);
    check_curses_error(error);
    return INT2NUM(val);
}

#leftcol ⇒ Object 



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# File 'ext/curses/curses.c', line 3979

static VALUE
field_leftcol(VALUE obj)
{
    struct fielddata *fieldp;
    int error, val;

    GetFIELD(obj, fieldp);
    error = field_info(fieldp->field, NULL, NULL, NULL, &val, NULL, NULL);
    check_curses_error(error);
    return INT2NUM(val);
}

#max ⇒ Object 



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# File 'ext/curses/curses.c', line 4039

static VALUE
field_max(VALUE obj)
{
    struct fielddata *fieldp;
    int error, val;

    GetFIELD(obj, fieldp);
    error = dynamic_field_info(fieldp->field, NULL, NULL, &val);
    check_curses_error(error);
    return INT2NUM(val);
}

#max=(max) ⇒ Object 



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# File 'ext/curses/curses.c', line 4051

static VALUE
field_set_max(VALUE obj, VALUE max)
{
    struct fielddata *fieldp;
    int error;

    GetFIELD(obj, fieldp);
    error = set_max_field(fieldp->field, NUM2INT(max));
    check_curses_error(error);
    return max;
}

#nbuffers ⇒ Object 



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# File 'ext/curses/curses.c', line 4003

static VALUE
field_nbuffers(VALUE obj)
{
    struct fielddata *fieldp;
    int error, val;

    GetFIELD(obj, fieldp);
    error = field_info(fieldp->field, NULL, NULL, NULL, NULL, NULL, &val);
    check_curses_error(error);
    return INT2NUM(val);
}

#offscreen ⇒ Object 



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# File 'ext/curses/curses.c', line 3991

static VALUE
field_offscreen(VALUE obj)
{
    struct fielddata *fieldp;
    int error, val;

    GetFIELD(obj, fieldp);
    error = field_info(fieldp->field, NULL, NULL, NULL, NULL, &val, NULL);
    check_curses_error(error);
    return INT2NUM(val);
}

#opts ⇒ Object

call-seq:

opts

Get the current option bits.



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# File 'ext/curses/curses.c', line 3934

static VALUE
field_opts_m(VALUE obj)
{
    struct fielddata *fieldp;

    GetFIELD(obj, fieldp);
    return INT2NUM(field_opts(fieldp->field));
}

#opts_off(opts) ⇒ Object

call-seq:

opts_off(opts)

Turn off the given option bits.



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# File 'ext/curses/curses.c', line 3915

static VALUE
field_opts_off_m(VALUE obj, VALUE opts)
{
    struct fielddata *fieldp;

    GetFIELD(obj, fieldp);
    field_opts_off(fieldp->field, NUM2INT(opts));

    return opts;
}

#opts_on(opts) ⇒ Object

call-seq:

opts_on(opts)

Turn on the given option bits.



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# File 'ext/curses/curses.c', line 3896

static VALUE
field_opts_on_m(VALUE obj, VALUE opts)
{
    struct fielddata *fieldp;

    GetFIELD(obj, fieldp);
    field_opts_on(fieldp->field, NUM2INT(opts));

    return opts;
}

#set_back(attr) ⇒ Object

call-seq:

set_back(attr)

Set the background attribute of the field.



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# File 'ext/curses/curses.c', line 3860

static VALUE
field_set_back(VALUE obj, VALUE attr)
{
    struct fielddata *fieldp;

    GetFIELD(obj, fieldp);
    set_field_back(fieldp->field, NUM2CHTYPE(attr));

    return attr;
}

#set_buffer(buf, value) ⇒ Object

call-seq:

set_buffer(buf, value)

Set the numbered buffer of the field.



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# File 'ext/curses/curses.c', line 3785

static VALUE
field_set_buffer(VALUE obj, VALUE buf, VALUE value)
{
    struct fielddata *fieldp;

    GetFIELD(obj, fieldp);
    value = rb_str_export_to_enc(value, terminal_encoding);
    set_field_buffer(fieldp->field, NUM2INT(buf), StringValueCStr(value));

    return obj;
}

#set_fore(attr) ⇒ Object

call-seq:

set_fore(attr)

Set the foreground attribute of the field.



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# File 'ext/curses/curses.c', line 3824

static VALUE
field_set_fore(VALUE obj, VALUE attr)
{
    struct fielddata *fieldp;

    GetFIELD(obj, fieldp);
    set_field_fore(fieldp->field, NUM2CHTYPE(attr));

    return attr;
}

#set_max(max) ⇒ Object 



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# File 'ext/curses/curses.c', line 4051

static VALUE
field_set_max(VALUE obj, VALUE max)
{
    struct fielddata *fieldp;
    int error;

    GetFIELD(obj, fieldp);
    error = set_max_field(fieldp->field, NUM2INT(max));
    check_curses_error(error);
    return max;
}

#set_type(*args) ⇒ Object 



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# File 'ext/curses/curses.c', line 4070

static VALUE
field_set_type(int argc, VALUE *argv, VALUE obj)
{
    struct fielddata *fieldp;
    VALUE type;
    int type_code;
    int error;

    if (argc < 1) {
	rb_raise(rb_eArgError,
                 "wrong number of arguments (given %d, expected 1)", argc);
    }
    type_code = NUM2INT(argv[0]);
    GetFIELD(obj, fieldp);
    switch (type_code) {
    case TYPE_CODE_ALPHA:
        {
            VALUE width;
	    rb_scan_args(argc, argv, "11", &type, &width);
	    error = set_field_type(fieldp->field, TYPE_ALPHA,
                                   NIL_P(width) ? 0 : NUM2INT(width));
	}
        break;
    case TYPE_CODE_ALNUM:
        {
            VALUE width;
	    rb_scan_args(argc, argv, "11", &type, &width);
	    error = set_field_type(fieldp->field, TYPE_ALNUM,
                                   NIL_P(width) ? 0 : NUM2INT(width));
	}
        break;
#if 0
    case TYPE_CODE_ENUM:
        {
            /* TODO: consider how valuelist should be allocated? */
	}
        break;
#endif
    case TYPE_CODE_INTEGER:
        {
            VALUE padding, vmin, vmax;
	    rb_scan_args(argc, argv, "13", &type, &padding, &vmin, &vmax);
	    error = set_field_type(fieldp->field, TYPE_INTEGER,
                                   NIL_P(padding) ? 0 : NUM2INT(padding),
                                   NIL_P(vmin) ? INT_MIN : NUM2INT(vmin),
                                   NIL_P(vmax) ? INT_MAX : NUM2INT(vmax));
	}
        break;
    case TYPE_CODE_NUMERIC:
        {
            VALUE padding, vmin, vmax;
	    rb_scan_args(argc, argv, "13", &type, &padding, &vmin, &vmax);
	    error = set_field_type(fieldp->field, TYPE_INTEGER,
                                   NIL_P(padding) ? 0 : NUM2INT(padding),
                                   NIL_P(vmin) ? INT_MIN : NUM2INT(vmin),
                                   NIL_P(vmax) ? INT_MAX : NUM2INT(vmax));
	}
        break;
#if 0
    case TYPE_CODE_REGEXP:
        {
            /* TODO: consider how regexp should be allocated? */
	}
        break;
#endif
    default:
	rb_raise(rb_eArgError, "unknwon type: %d", type_code);
	break;
    }
    check_curses_error(error);
    return obj;
}

#toprow ⇒ Object 



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# File 'ext/curses/curses.c', line 3967

static VALUE
field_toprow(VALUE obj)
{
    struct fielddata *fieldp;
    int error, val;

    GetFIELD(obj, fieldp);
    error = field_info(fieldp->field, NULL, NULL, &val, NULL, NULL, NULL);
    check_curses_error(error);
    return INT2NUM(val);
}

#width ⇒ Object 



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# File 'ext/curses/curses.c', line 3955

static VALUE
field_width(VALUE obj)
{
    struct fielddata *fieldp;
    int error, val;

    GetFIELD(obj, fieldp);
    error = field_info(fieldp->field, NULL, &val, NULL, NULL, NULL, NULL);
    check_curses_error(error);
    return INT2NUM(val);
}