489 lines
15 KiB
C
489 lines
15 KiB
C
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/*
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* Copyright (c) 2019-2020 CTCaer
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file lv_kb.c
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*
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*/
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/*********************
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* INCLUDES
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*********************/
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#include "lv_kb.h"
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#if USE_LV_KB != 0
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#include "lv_ta.h"
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#include "../lv_themes/lv_theme.h"
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* STATIC PROTOTYPES
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**********************/
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static lv_res_t lv_kb_signal(lv_obj_t * kb, lv_signal_t sign, void * param);
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static lv_res_t lv_kb_def_action(lv_obj_t * kb, const char * txt);
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/**********************
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* STATIC VARIABLES
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**********************/
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static lv_signal_func_t ancestor_signal;
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static const char * kb_map_lc[] = {
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"\2051#", "\204q", "\204w", "\204e", "\204r", "\204t", "\204y", "\204u", "\204i", "\204o", "\204p", "\207Bksp", "\n",
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"\226ABC", "\203a", "\203s", "\203d", "\203f", "\203g", "\203h", "\203j", "\203k", "\203l", "\207Enter", "\n",
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"_", "-", "z", "x", "c", "v", "b", "n", "m", ".", ",", ":", "\n",
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"\202"SYMBOL_CLOSE, "\202"SYMBOL_LEFT, "\206 ", "\202"SYMBOL_RIGHT, "\202"SYMBOL_OK, ""
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};
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static const char * kb_map_uc[] = {
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"\2051#", "\204Q", "\204W", "\204E", "\204R", "\204T", "\204Y", "\204U", "\204I", "\204O", "\204P", "\207Bksp", "\n",
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"\226abc", "\203A", "\203S", "\203D", "\203F", "\203G", "\203H", "\203J", "\203K", "\203L", "\207Enter", "\n",
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"_", "-", "Z", "X", "C", "V", "B", "N", "M", ".", ",", ":", "\n",
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"\202"SYMBOL_CLOSE, "\202"SYMBOL_LEFT, "\206 ", "\202"SYMBOL_RIGHT, "\202"SYMBOL_OK, ""
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};
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static const char * kb_map_spec[] = {
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"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "\202Bksp", "\n",
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"\222abc", "+", "-", "/", "*", "=", "%", "!", "?", "#", "<", ">", "\n",
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"\\", "@", "$", "(", ")", "{", "}", "[", "]", ";", "\"", "'", "\n",
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"\202"SYMBOL_CLOSE, "\202"SYMBOL_LEFT, "\206 ", "\202"SYMBOL_RIGHT, "\202"SYMBOL_OK, ""
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};
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static const char * kb_map_num[] = {
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"1", "2", "3", "\202"SYMBOL_CLOSE, "\n",
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"4", "5", "6", "\202"SYMBOL_OK, "\n",
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"7", "8", "9", "\202Bksp", "\n",
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"+/-", "0", ".", SYMBOL_LEFT, SYMBOL_RIGHT, ""
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};
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static const char * kb_map_hex[] = {
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"1", "2", "3", "A", "D", "\212", "\n",
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"4", "5", "6", "B", "E", "\202Bksp", "\n",
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"7", "8", "9", "C", "F", "\202"SYMBOL_OK, "\n",
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"\211", "0", "\213", SYMBOL_LEFT, SYMBOL_RIGHT, ""
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};
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/**********************
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* MACROS
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**********************/
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/**********************
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* GLOBAL FUNCTIONS
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**********************/
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/**
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* Create a keyboard objects
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* @param par pointer to an object, it will be the parent of the new keyboard
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* @param copy pointer to a keyboard object, if not NULL then the new object will be copied from it
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* @return pointer to the created keyboard
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*/
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lv_obj_t * lv_kb_create(lv_obj_t * par, const lv_obj_t * copy)
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{
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LV_LOG_TRACE("keyboard create started");
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/*Create the ancestor of keyboard*/
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lv_obj_t * new_kb = lv_btnm_create(par, copy);
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lv_mem_assert(new_kb);
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if(new_kb == NULL) return NULL;
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if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_func(new_kb);
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/*Allocate the keyboard type specific extended data*/
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lv_kb_ext_t * ext = lv_obj_allocate_ext_attr(new_kb, sizeof(lv_kb_ext_t));
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lv_mem_assert(ext);
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if(ext == NULL) return NULL;
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/*Initialize the allocated 'ext' */
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ext->ta = NULL;
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ext->mode = LV_KB_MODE_TEXT;
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ext->cursor_mng = 0;
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ext->hide_action = NULL;
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ext->ok_action = NULL;
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/*The signal and design functions are not copied so set them here*/
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lv_obj_set_signal_func(new_kb, lv_kb_signal);
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/*Init the new keyboard keyboard*/
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if(copy == NULL) {
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lv_obj_set_size(new_kb, LV_HOR_RES, LV_VER_RES / 2);
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lv_obj_align(new_kb, NULL, LV_ALIGN_IN_BOTTOM_MID, 0, 0);
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lv_btnm_set_action(new_kb, lv_kb_def_action);
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lv_btnm_set_map(new_kb, kb_map_lc);
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/*Set the default styles*/
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lv_theme_t * th = lv_theme_get_current();
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if(th) {
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lv_kb_set_style(new_kb, LV_KB_STYLE_BG, th->kb.bg);
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lv_kb_set_style(new_kb, LV_KB_STYLE_BTN_REL, th->kb.btn.rel);
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lv_kb_set_style(new_kb, LV_KB_STYLE_BTN_PR, th->kb.btn.pr);
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lv_kb_set_style(new_kb, LV_KB_STYLE_BTN_TGL_REL, th->kb.btn.tgl_rel);
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lv_kb_set_style(new_kb, LV_KB_STYLE_BTN_TGL_PR, th->kb.btn.tgl_pr);
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lv_kb_set_style(new_kb, LV_KB_STYLE_BTN_INA, th->kb.btn.ina);
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} else {
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/*Let the button matrix's styles*/
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}
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}
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/*Copy an existing keyboard*/
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else {
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lv_kb_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
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ext->ta = NULL;
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ext->ta = copy_ext->ta;
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ext->mode = copy_ext->mode;
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ext->cursor_mng = copy_ext->cursor_mng;
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ext->hide_action = copy_ext->hide_action;
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ext->ok_action = copy_ext->ok_action;
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/*Refresh the style with new signal function*/
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lv_obj_refresh_style(new_kb);
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}
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LV_LOG_INFO("keyboard created");
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return new_kb;
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}
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/*=====================
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* Setter functions
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*====================*/
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/**
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* Assign a Text Area to the Keyboard. The pressed characters will be put there.
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* @param kb pointer to a Keyboard object
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* @param ta pointer to a Text Area object to write there
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*/
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void lv_kb_set_ta(lv_obj_t * kb, lv_obj_t * ta)
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{
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lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
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lv_cursor_type_t cur_type;
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/*Hide the cursor of the old Text area if cursor management is enabled*/
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if(ext->ta && ext->cursor_mng) {
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cur_type = lv_ta_get_cursor_type(ext->ta);
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lv_ta_set_cursor_type(ext->ta, cur_type | LV_CURSOR_HIDDEN);
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}
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ext->ta = ta;
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/*Show the cursor of the new Text area if cursor management is enabled*/
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if(ext->ta && ext->cursor_mng) {
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cur_type = lv_ta_get_cursor_type(ext->ta);
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lv_ta_set_cursor_type(ext->ta, cur_type & (~LV_CURSOR_HIDDEN));
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}
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}
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/**
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* Set a new a mode (text or number map)
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* @param kb pointer to a Keyboard object
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* @param mode the mode from 'lv_kb_mode_t'
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*/
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void lv_kb_set_mode(lv_obj_t * kb, lv_kb_mode_t mode)
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{
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lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
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if(ext->mode == mode) return;
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ext->mode = mode;
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if(mode == LV_KB_MODE_TEXT) lv_btnm_set_map(kb, kb_map_lc);
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else if(mode == LV_KB_MODE_NUM) lv_btnm_set_map(kb, kb_map_num);
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else if (mode == LV_KB_MODE_HEX) lv_btnm_set_map(kb, kb_map_hex);
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}
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/**
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* Automatically hide or show the cursor of Text Area
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* @param kb pointer to a Keyboard object
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* @param en true: show cursor on the current text area, false: hide cursor
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*/
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void lv_kb_set_cursor_manage(lv_obj_t * kb, bool en)
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{
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lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
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if(ext->cursor_mng == en) return;
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ext->cursor_mng = en == false ? 0 : 1;
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if(ext->ta) {
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lv_cursor_type_t cur_type;
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cur_type = lv_ta_get_cursor_type(ext->ta);
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if(ext->cursor_mng) {
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lv_ta_set_cursor_type(ext->ta, cur_type & (~LV_CURSOR_HIDDEN));
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} else {
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lv_ta_set_cursor_type(ext->ta, cur_type | LV_CURSOR_HIDDEN);
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}
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}
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}
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/**
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* Set call back to call when the "Ok" button is pressed
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* @param kb pointer to Keyboard object
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* @param action a callback with 'lv_action_t' type
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*/
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void lv_kb_set_ok_action(lv_obj_t * kb, lv_action_t action)
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{
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lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
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ext->ok_action = action;
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}
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/**
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* Set call back to call when the "Hide" button is pressed
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* @param kb pointer to Keyboard object
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* @param action a callback with 'lv_action_t' type
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*/
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void lv_kb_set_hide_action(lv_obj_t * kb, lv_action_t action)
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{
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lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
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ext->hide_action = action;
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}
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/**
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* Set a style of a keyboard
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* @param kb pointer to a keyboard object
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* @param type which style should be set
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* @param style pointer to a style
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*/
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void lv_kb_set_style(lv_obj_t * kb, lv_kb_style_t type, lv_style_t * style)
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{
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switch(type) {
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case LV_KB_STYLE_BG:
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lv_btnm_set_style(kb, LV_BTNM_STYLE_BG, style);
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break;
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case LV_KB_STYLE_BTN_REL:
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lv_btnm_set_style(kb, LV_BTNM_STYLE_BTN_REL, style);
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break;
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case LV_KB_STYLE_BTN_PR:
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lv_btnm_set_style(kb, LV_BTNM_STYLE_BTN_PR, style);
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break;
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case LV_KB_STYLE_BTN_TGL_REL:
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lv_btnm_set_style(kb, LV_BTNM_STYLE_BTN_TGL_REL, style);
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break;
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case LV_KB_STYLE_BTN_TGL_PR:
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lv_btnm_set_style(kb, LV_BTNM_STYLE_BTN_TGL_PR, style);
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break;
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case LV_KB_STYLE_BTN_INA:
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lv_btnm_set_style(kb, LV_BTNM_STYLE_BTN_INA, style);
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break;
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}
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}
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/*=====================
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* Getter functions
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*====================*/
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/**
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* Assign a Text Area to the Keyboard. The pressed characters will be put there.
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* @param kb pointer to a Keyboard object
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* @return pointer to the assigned Text Area object
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*/
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lv_obj_t * lv_kb_get_ta(const lv_obj_t * kb)
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{
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lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
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return ext->ta;
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}
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/**
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* Set a new a mode (text or number map)
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* @param kb pointer to a Keyboard object
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* @return the current mode from 'lv_kb_mode_t'
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*/
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lv_kb_mode_t lv_kb_get_mode(const lv_obj_t * kb)
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{
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lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
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return ext->mode;
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}
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/**
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* Get the current cursor manage mode.
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* @param kb pointer to a Keyboard object
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* @return true: show cursor on the current text area, false: hide cursor
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*/
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bool lv_kb_get_cursor_manage(const lv_obj_t * kb)
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{
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lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
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return ext->cursor_mng == 0 ? false : true;
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}
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/**
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* Get the callback to call when the "Ok" button is pressed
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* @param kb pointer to Keyboard object
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* @return the ok callback
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*/
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lv_action_t lv_kb_get_ok_action(const lv_obj_t * kb)
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{
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lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
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return ext->ok_action;
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}
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/**
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* Get the callback to call when the "Hide" button is pressed
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* @param kb pointer to Keyboard object
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|
* @return the close callback
|
||
|
|
*/
|
||
|
|
lv_action_t lv_kb_get_hide_action(const lv_obj_t * kb)
|
||
|
|
{
|
||
|
|
lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
|
||
|
|
return ext->hide_action;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get a style of a keyboard
|
||
|
|
* @param kb pointer to a keyboard object
|
||
|
|
* @param type which style should be get
|
||
|
|
* @return style pointer to a style
|
||
|
|
*/
|
||
|
|
lv_style_t * lv_kb_get_style(const lv_obj_t * kb, lv_kb_style_t type)
|
||
|
|
{
|
||
|
|
lv_style_t * style = NULL;
|
||
|
|
|
||
|
|
switch(type) {
|
||
|
|
case LV_KB_STYLE_BG:
|
||
|
|
style = lv_btnm_get_style(kb, LV_BTNM_STYLE_BG);
|
||
|
|
break;
|
||
|
|
case LV_KB_STYLE_BTN_REL:
|
||
|
|
style = lv_btnm_get_style(kb, LV_BTNM_STYLE_BTN_REL);
|
||
|
|
break;
|
||
|
|
case LV_KB_STYLE_BTN_PR:
|
||
|
|
style = lv_btnm_get_style(kb, LV_BTNM_STYLE_BTN_PR);
|
||
|
|
break;
|
||
|
|
case LV_KB_STYLE_BTN_TGL_REL:
|
||
|
|
style = lv_btnm_get_style(kb, LV_BTNM_STYLE_BTN_TGL_REL);
|
||
|
|
break;
|
||
|
|
case LV_KB_STYLE_BTN_TGL_PR:
|
||
|
|
style = lv_btnm_get_style(kb, LV_BTNM_STYLE_BTN_TGL_PR);
|
||
|
|
break;
|
||
|
|
case LV_KB_STYLE_BTN_INA:
|
||
|
|
style = lv_btnm_get_style(kb, LV_BTNM_STYLE_BTN_INA);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
style = NULL;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return style;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**********************
|
||
|
|
* STATIC FUNCTIONS
|
||
|
|
**********************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Signal function of the keyboard
|
||
|
|
* @param kb pointer to a keyboard object
|
||
|
|
* @param sign a signal type from lv_signal_t enum
|
||
|
|
* @param param pointer to a signal specific variable
|
||
|
|
* @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted
|
||
|
|
*/
|
||
|
|
static lv_res_t lv_kb_signal(lv_obj_t * kb, lv_signal_t sign, void * param)
|
||
|
|
{
|
||
|
|
lv_res_t res;
|
||
|
|
|
||
|
|
/* Include the ancient signal function */
|
||
|
|
res = ancestor_signal(kb, sign, param);
|
||
|
|
if(res != LV_RES_OK) return res;
|
||
|
|
|
||
|
|
if(sign == LV_SIGNAL_CLEANUP) {
|
||
|
|
/*Nothing to cleanup. (No dynamically allocated memory in 'ext')*/
|
||
|
|
} else if(sign == LV_SIGNAL_GET_TYPE) {
|
||
|
|
lv_obj_type_t * buf = param;
|
||
|
|
uint8_t i;
|
||
|
|
for(i = 0; i < LV_MAX_ANCESTOR_NUM - 1; i++) { /*Find the last set data*/
|
||
|
|
if(buf->type[i] == NULL) break;
|
||
|
|
}
|
||
|
|
buf->type[i] = "lv_kb";
|
||
|
|
}
|
||
|
|
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Called when a button of 'kb_btnm' is released
|
||
|
|
* @param btnm pointer to 'kb_btnm'
|
||
|
|
* @param i the index of the released button from the current btnm map
|
||
|
|
* @return LV_ACTION_RES_INV if the btnm is deleted else LV_ACTION_RES_OK
|
||
|
|
*/
|
||
|
|
static lv_res_t lv_kb_def_action(lv_obj_t * kb, const char * txt)
|
||
|
|
{
|
||
|
|
lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
|
||
|
|
lv_res_t res = LV_RES_OK;
|
||
|
|
|
||
|
|
/*Do the corresponding action according to the text of the button*/
|
||
|
|
if(strcmp(txt, "abc") == 0) {
|
||
|
|
lv_btnm_set_map(kb, kb_map_lc);
|
||
|
|
return LV_RES_OK;
|
||
|
|
} else if(strcmp(txt, "ABC") == 0) {
|
||
|
|
lv_btnm_set_map(kb, kb_map_uc);
|
||
|
|
return LV_RES_OK;
|
||
|
|
} else if(strcmp(txt, "1#") == 0) {
|
||
|
|
lv_btnm_set_map(kb, kb_map_spec);
|
||
|
|
return LV_RES_OK;
|
||
|
|
} else if(strcmp(txt, SYMBOL_CLOSE) == 0) {
|
||
|
|
if(ext->hide_action) res = ext->hide_action(kb);
|
||
|
|
else {
|
||
|
|
lv_kb_set_ta(kb, NULL); /*De-assign the text area to hide it cursor if needed*/
|
||
|
|
lv_obj_del(kb);
|
||
|
|
}
|
||
|
|
return res;
|
||
|
|
} else if(strcmp(txt, SYMBOL_OK) == 0) {
|
||
|
|
if(ext->ok_action) res = ext->ok_action(kb);
|
||
|
|
else {
|
||
|
|
lv_kb_set_ta(kb, NULL); /*De-assign the text area to hide it cursor if needed*/
|
||
|
|
res = lv_obj_del(kb);
|
||
|
|
}
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(res != LV_RES_OK) return res; /*The keyboard might be deleted in the actions*/
|
||
|
|
|
||
|
|
/*Add the characters to the text area if set*/
|
||
|
|
if(ext->ta == NULL) return res;
|
||
|
|
|
||
|
|
if(strcmp(txt, "Enter") == 0)lv_ta_add_char(ext->ta, '\n');
|
||
|
|
else if(strcmp(txt, SYMBOL_LEFT) == 0) lv_ta_cursor_left(ext->ta);
|
||
|
|
else if(strcmp(txt, SYMBOL_RIGHT) == 0) lv_ta_cursor_right(ext->ta);
|
||
|
|
else if(strcmp(txt, "Bksp") == 0) lv_ta_del_char(ext->ta);
|
||
|
|
else if(strcmp(txt, "+/-") == 0) {
|
||
|
|
uint16_t cur = lv_ta_get_cursor_pos(ext->ta);
|
||
|
|
const char * ta_txt = lv_ta_get_text(ext->ta);
|
||
|
|
if(ta_txt[0] == '-') {
|
||
|
|
lv_ta_set_cursor_pos(ext->ta, 1);
|
||
|
|
lv_ta_del_char(ext->ta);
|
||
|
|
lv_ta_add_char(ext->ta, '+');
|
||
|
|
lv_ta_set_cursor_pos(ext->ta, cur);
|
||
|
|
} else if(ta_txt[0] == '+') {
|
||
|
|
lv_ta_set_cursor_pos(ext->ta, 1);
|
||
|
|
lv_ta_del_char(ext->ta);
|
||
|
|
lv_ta_add_char(ext->ta, '-');
|
||
|
|
lv_ta_set_cursor_pos(ext->ta, cur);
|
||
|
|
} else {
|
||
|
|
lv_ta_set_cursor_pos(ext->ta, 0);
|
||
|
|
lv_ta_add_char(ext->ta, '-');
|
||
|
|
lv_ta_set_cursor_pos(ext->ta, cur + 1);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
lv_ta_add_text(ext->ta, txt);
|
||
|
|
}
|
||
|
|
return LV_RES_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|