circuitpython/shared-bindings/terminalio/Terminal.c

155 lines
6.1 KiB
C

/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdint.h>
#include "shared-bindings/terminalio/Terminal.h"
#include "shared-bindings/util.h"
#include "py/stream.h"
#include "py/objproperty.h"
#include "py/objstr.h"
#include "py/runtime.h"
#include "py/stream.h"
#include "shared-bindings/fontio/BuiltinFont.h"
#include "supervisor/shared/translate/translate.h"
//| class Terminal:
//| """Display a character stream with a TileGrid
//|
//| ASCII control:
//| * ``\\r`` - Move cursor to column 1
//| * ``\\n`` - Move cursor down a row
//| * ``\\b`` - Move cursor left one if possible
//|
//| OSC control sequences:
//| * ``ESC ] 0; <s> ESC \\`` - Set title bar to <s>
//| * ``ESC ] ####; <s> ESC \\`` - Ignored
//|
//| VT100 control sequences:
//| * ``ESC [ K`` - Clear the remainder of the line
//| * ``ESC [ #### D`` - Move the cursor to the left by ####
//| * ``ESC [ 2 J`` - Erase the entire display
//| * ``ESC [ nnnn ; mmmm H`` - Move the cursor to mmmm, nnnn.
//| """
//|
//| def __init__(
//| self,
//| scroll_area: displayio.TileGrid,
//| font: fontio.BuiltinFont,
//| *,
//| status_bar: Optional[displayio.TileGrid] = None
//| ) -> None:
//| """Terminal manages tile indices and cursor position based on VT100 commands. The font should be
//| a `fontio.BuiltinFont` and the TileGrid's bitmap should match the font's bitmap."""
//| ...
STATIC mp_obj_t terminalio_terminal_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
enum { ARG_scroll_area, ARG_font, ARG_status_bar };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_scroll_area, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_font, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_status_bar, MP_ARG_KW_ONLY | MP_ARG_OBJ, { .u_obj = mp_const_none } },
};
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
displayio_tilegrid_t *scroll_area = mp_arg_validate_type(args[ARG_scroll_area].u_obj, &displayio_tilegrid_type, MP_QSTR_scroll_area);
displayio_tilegrid_t *status_bar = NULL;
if (args[ARG_status_bar].u_obj != mp_const_none) {
status_bar = mp_arg_validate_type(args[ARG_status_bar].u_obj, &displayio_tilegrid_type, MP_QSTR_status_bar);
}
fontio_builtinfont_t *font = mp_arg_validate_type(args[ARG_font].u_obj, &fontio_builtinfont_type, MP_QSTR_font);
mp_arg_validate_int_min(scroll_area->width_in_tiles, 2, MP_QSTR_scroll_area_width);
mp_arg_validate_int_min(scroll_area->height_in_tiles, 2, MP_QSTR_scroll_area_height);
terminalio_terminal_obj_t *self = mp_obj_malloc(terminalio_terminal_obj_t, &terminalio_terminal_type);
common_hal_terminalio_terminal_construct(self, scroll_area, font, status_bar);
return MP_OBJ_FROM_PTR(self);
}
// These are standard stream methods. Code is in py/stream.c.
//
//| def write(self, buf: ReadableBuffer) -> Optional[int]:
//| """Write the buffer of bytes to the bus.
//|
//| :return: the number of bytes written
//| :rtype: int or None"""
//| ...
//|
STATIC mp_uint_t terminalio_terminal_write(mp_obj_t self_in, const void *buf_in, mp_uint_t size, int *errcode) {
terminalio_terminal_obj_t *self = MP_OBJ_TO_PTR(self_in);
const byte *buf = buf_in;
return common_hal_terminalio_terminal_write(self, buf, size, errcode);
}
STATIC mp_uint_t terminalio_terminal_ioctl(mp_obj_t self_in, mp_uint_t request, mp_uint_t arg, int *errcode) {
terminalio_terminal_obj_t *self = MP_OBJ_TO_PTR(self_in);
mp_uint_t ret;
if (request == MP_STREAM_POLL) {
mp_uint_t flags = arg;
ret = 0;
if ((flags & MP_STREAM_POLL_WR) && common_hal_terminalio_terminal_ready_to_tx(self)) {
ret |= MP_STREAM_POLL_WR;
}
} else {
*errcode = MP_EINVAL;
ret = MP_STREAM_ERROR;
}
return ret;
}
STATIC const mp_rom_map_elem_t terminalio_terminal_locals_dict_table[] = {
// Standard stream methods.
{ MP_OBJ_NEW_QSTR(MP_QSTR_write), MP_ROM_PTR(&mp_stream_write_obj) },
};
STATIC MP_DEFINE_CONST_DICT(terminalio_terminal_locals_dict, terminalio_terminal_locals_dict_table);
STATIC const mp_stream_p_t terminalio_terminal_stream_p = {
MP_PROTO_IMPLEMENT(MP_QSTR_protocol_stream)
.read = NULL,
.write = terminalio_terminal_write,
.ioctl = terminalio_terminal_ioctl,
.is_text = true,
};
const mp_obj_type_t terminalio_terminal_type = {
{ &mp_type_type },
.flags = MP_TYPE_FLAG_EXTENDED,
.name = MP_QSTR_Terminal,
.make_new = terminalio_terminal_make_new,
.locals_dict = (mp_obj_dict_t *)&terminalio_terminal_locals_dict,
MP_TYPE_EXTENDED_FIELDS(
.getiter = mp_identity_getiter,
.iternext = mp_stream_unbuffered_iter,
.protocol = &terminalio_terminal_stream_p,
),
};