106 lines
4.0 KiB
C
106 lines
4.0 KiB
C
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/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2021 Dan Halbert for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/runtime.h"
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#include "shared-bindings/keypad/EventQueue.h"
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//| class EventQueue:
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//| """A queue of `Event` objects, filled by a `keypad` scanner such as `Keys` or `KeyMatrix`.
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//|
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//| You cannot create an instance of `EventQueue` directly. Each scanner creates an
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//| instance when it is created.
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//| """
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//| ...
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//| def next(self) -> Optional[Event]:
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//| """Return the next key transition event. Return ``None`` if no events are pending.
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//|
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//| Note that the queue size is limited; see ``max_events`` in the constructor of
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//| a scanner such as `Keys` or `KeyMatrix`.
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//| If a new event arrives when the queue is full, the oldest event is discarded.
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//|
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//| :return: the next queued key transition `Event`
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//| :rtype: Optional[Event]
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//| """
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//| ...
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//|
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STATIC mp_obj_t keypad_eventqueue_next(mp_obj_t self_in) {
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keypad_eventqueue_obj_t *self = MP_OBJ_TO_PTR(self_in);
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return common_hal_keypad_eventqueue_next(self);
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}
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MP_DEFINE_CONST_FUN_OBJ_1(keypad_eventqueue_next_obj, keypad_eventqueue_next);
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//| def clear(self) -> None:
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//| """Clear any queued key transition events.
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//| """
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//| ...
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//|
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STATIC mp_obj_t keypad_eventqueue_clear(mp_obj_t self_in) {
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keypad_eventqueue_obj_t *self = MP_OBJ_TO_PTR(self_in);
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common_hal_keypad_eventqueue_clear(self);
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return MP_ROM_NONE;
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}
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MP_DEFINE_CONST_FUN_OBJ_1(keypad_eventqueue_clear_obj, keypad_eventqueue_clear);
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//| def __bool__(self) -> bool:
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//| """``True`` if `len()` is greater than zero.
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//| This is an easy way to check if the queue is empty.
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//| """
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//| ...
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//|
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//| def __len__(self) -> int:
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//| """Return the number of events currently in the queue. Used to implement ``len()``."""
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//| ...
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//|
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STATIC mp_obj_t keypad_eventqueue_unary_op(mp_unary_op_t op, mp_obj_t self_in) {
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keypad_eventqueue_obj_t *self = MP_OBJ_TO_PTR(self_in);
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uint16_t len = common_hal_keypad_eventqueue_get_length(self);
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switch (op) {
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case MP_UNARY_OP_BOOL:
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return mp_obj_new_bool(len != 0);
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case MP_UNARY_OP_LEN:
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return MP_OBJ_NEW_SMALL_INT(len);
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default:
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return MP_OBJ_NULL; // op not supported
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}
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}
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STATIC const mp_rom_map_elem_t keypad_eventqueue_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_clear), MP_ROM_PTR(&keypad_eventqueue_clear_obj) },
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{ MP_ROM_QSTR(MP_QSTR_next), MP_ROM_PTR(&keypad_eventqueue_next_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(keypad_eventqueue_locals_dict, keypad_eventqueue_locals_dict_table);
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const mp_obj_type_t keypad_eventqueue_type = {
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{ &mp_type_type },
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.name = MP_QSTR_Keys,
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.unary_op = keypad_eventqueue_unary_op,
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.locals_dict = (mp_obj_t)&keypad_eventqueue_locals_dict,
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};
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