mirror of
https://github.com/lvgl/lvgl.git
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246 lines
7.2 KiB
C
246 lines
7.2 KiB
C
/**
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* @file lv_app_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_app_kb.h"
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#if LV_APP_ENABLE != 0
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#include "lvgl/lv_objx/lv_btnm.h"
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#include "lvgl/lv_objx/lv_ta.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_action_res_t lv_app_kb_action(lv_obj_t * btnm, uint16_t i);
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/**********************
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* STATIC VARIABLES
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**********************/
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static lv_obj_t * kb_btnm;
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static lv_obj_t * kb_win;
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static lv_obj_t * kb_ta;
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static const char * kb_map_lc[] = {
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"\0051#", "\004q", "\004w", "\004e", "\004r", "\004t", "\004y", "\004u", "\004i", "\004o", "\004p", "\007Del", "\n",
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"\007ABC", "\004a", "\004s", "\004d", "\004f", "\004g", "\004h", "\004j", "\004k", "\004l", "\010Enter", "\n",
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"_", "-", "z", "x", "c", "v", "b", "n", "m", ".", ",", ":", "\n",
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"\002Hide", "\002Left", "\006 ", "\002Right", "\002Ok", ""
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};
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static const char * kb_map_uc[] = {
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"\0051#", "\004Q", "\004W", "\004E", "\004R", "\004T", "\004Y", "\004U", "\004I", "\004O", "\004P", "\007Del", "\n",
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"\007abc", "\004A", "\004S", "\004D", "\004F", "\004G", "\004H", "\004J", "\004K", "\004L", "\010Enter", "\n",
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"_", "-", "Z", "X", "C", "V", "B", "N", "M", ".", ",", ":", "\n",
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"\002Hide", "\002Left", "\006 ", "\002Right", "\002Ok", ""
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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", "\002Del", "\n",
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"\002abc", "+", "-", "/", "*", "=", "%", "!", "?", "#", "<", ">", "\n",
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"\\", "@", "$", "(", ")", "{", "}", "[", "]", ";", "\"", "'", "\n",
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"\002Hide", "\002Left", "\006 ", "\002Right", "\002Ok", ""
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};
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static const char * kb_map_num[] = {
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"1", "2", "3", "\002Hide","\n",
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"4", "5", "6", "\002Ok", "\n",
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"7", "8", "9", "\002Del", "\n",
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"+/-", "0", ".", "Left", "Right", ""
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};
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static cord_t kb_ta_ori_size;
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static uint8_t kb_mode;
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static void (*kb_close_action)(lv_obj_t *);
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static void (*kb_ok_action)(lv_obj_t *);
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static lv_btnms_t kb_btnms;
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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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void lv_app_kb_init(void)
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{
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lv_btnms_get(LV_BTNMS_DEF, &kb_btnms);
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kb_btnms.rects.gcolor = COLOR_WHITE;
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kb_btnms.rects.objs.color = COLOR_WHITE;
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kb_btnms.rects.opad = 4 + LV_DOWNSCALE;
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kb_btnms.rects.vpad = 3 + LV_DOWNSCALE;
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kb_btnms.rects.hpad = 3 + LV_DOWNSCALE;
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kb_btnms.rects.round = 0;
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kb_btnms.rects.bwidth = 0;
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kb_btnms.btns.rects.bwidth = 0;
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kb_btnms.btns.rects.round = 0;
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}
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/**
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* Open a keyboard for a text area object
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* @param ta pointer to a text area object
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* @param mode 'OR'd values of 'lv_app_kb_mode_t' enum
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* @param close a function to call when the keyboard is closed
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* @param ok a function to called when the "Ok" button is pressed
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*/
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void lv_app_kb_open(lv_obj_t * ta, lv_app_kb_mode_t mode, void (*close)(lv_obj_t *), void (*ok)(lv_obj_t *))
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{
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/*Close the previous keyboard*/
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if(kb_btnm != NULL) {
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lv_app_kb_close(false);
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}
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/*Save some parameters*/
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kb_ta = ta;
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kb_mode = mode;
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kb_close_action = close;
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kb_ok_action = ok;
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/*Create a button matrix for the keyboard */
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kb_btnm = lv_btnm_create(lv_scr_act(), NULL);
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lv_obj_set_size(kb_btnm, LV_HOR_RES, LV_VER_RES / 2);
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lv_obj_align(kb_btnm, NULL, LV_ALIGN_IN_BOTTOM_MID, 0, 0);
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lv_btnm_set_cb(kb_btnm, lv_app_kb_action);
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if(mode & LV_APP_KB_MODE_TXT) {
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kb_btnms.labels.font = LV_APP_FONT_MEDIUM;
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lv_btnm_set_map(kb_btnm, kb_map_lc);
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}
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else if(mode & LV_APP_KB_MODE_NUM) {
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kb_btnms.labels.font = LV_APP_FONT_LARGE;
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lv_btnm_set_map(kb_btnm, kb_map_num);
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}
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lv_obj_set_style(kb_btnm, &kb_btnms);
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/*Reduce teh size of the window and align it to the top*/
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kb_win = lv_app_win_get_from_obj(kb_ta);
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lv_obj_set_height(kb_win, LV_VER_RES / 2);
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lv_obj_set_y(kb_win, 0);
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/*If the text area is higher then the new size of the window redus its size too*/
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lv_app_style_t * app_style = lv_app_style_get();
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cord_t win_h = lv_obj_get_height(kb_win) - 2 * app_style->win_style.pages.scrl_rects.vpad;
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kb_ta_ori_size = lv_obj_get_height(kb_ta);
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if(lv_obj_get_height(kb_ta) > win_h) {
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lv_obj_set_height(kb_ta, win_h);
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}
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lv_ta_set_cursor_pos(kb_ta, LV_TA_CUR_LAST);
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#if LV_APP_ANIM_LEVEL != 0
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lv_page_focus(lv_win_get_content(kb_win), kb_ta, true);
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#else
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lv_page_focus(kb_win, kb_ta, false);
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#endif
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}
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/**
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* Close the keyboard
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* @param ok true: call the ok function, false: call the close function
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*/
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void lv_app_kb_close(bool ok)
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{
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if(kb_btnm == NULL) return;
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if(ok == false) {
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if(kb_close_action != NULL) kb_close_action(kb_ta);
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} else {
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if(kb_ok_action != NULL) kb_ok_action(kb_ta);
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}
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/*Reset the modified sizes*/
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lv_obj_set_height(kb_ta, kb_ta_ori_size);
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lv_obj_set_size(kb_win, LV_HOR_RES, LV_VER_RES);
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kb_win = NULL;
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lv_obj_del(kb_btnm);
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kb_btnm = NULL;
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kb_ta = NULL;
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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/**
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* Called when a button of 'kb_btnm' is released
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* @param btnm pointer to 'kb_btnm'
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* @param i the index of the released button from the current btnm map
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* @return LV_ACTION_RES_INV if the btnm is deleted else LV_ACTION_RES_OK
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*/
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static lv_action_res_t lv_app_kb_action(lv_obj_t * btnm, uint16_t i)
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{
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const char ** map = lv_btnm_get_map(btnm);
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const char * txt = map[i];
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/*Ignore the unit size number of the text*/
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if(txt[0] <= '\011') txt++;
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/*Do the corresponding action according to the text of the button*/
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if(strcmp(txt, "abc") == 0) {
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lv_btnm_set_map(btnm, kb_map_lc);
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} else if(strcmp(txt, "ABC") == 0) {
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lv_btnm_set_map(btnm, kb_map_uc);
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} else if(strcmp(txt, "1#") == 0) {
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lv_btnm_set_map(btnm, kb_map_spec);
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} else if(strcmp(txt, "Enter") == 0) {
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lv_ta_add_char(kb_ta, '\n');
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} else if(strcmp(txt, "Left") == 0) {
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lv_ta_cursor_left(kb_ta);
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} else if(strcmp(txt, "Right") == 0) {
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lv_ta_cursor_right(kb_ta);
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} else if(strcmp(txt, "Del") == 0) {
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lv_ta_del(kb_ta);
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} else if(strcmp(txt, "+/-") == 0) {
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uint16_t cur = lv_ta_get_cursor_pos(kb_ta);
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const char * ta_txt = lv_ta_get_txt(kb_ta);
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if(ta_txt[0] == '-') {
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lv_ta_set_cursor_pos(kb_ta, 1);
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lv_ta_del(kb_ta);
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lv_ta_add_char(kb_ta, '+');
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lv_ta_set_cursor_pos(kb_ta, cur);
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} else if(ta_txt[0] == '+') {
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lv_ta_set_cursor_pos(kb_ta, 1);
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lv_ta_del(kb_ta);
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lv_ta_add_char(kb_ta, '-');
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lv_ta_set_cursor_pos(kb_ta, cur);
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} else {
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lv_ta_set_cursor_pos(kb_ta, 0);
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lv_ta_add_char(kb_ta, '-');
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lv_ta_set_cursor_pos(kb_ta, cur + 1);
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}
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} else if(strcmp(txt, "Hide") == 0) {
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lv_app_kb_close(false);
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return LV_ACTION_RES_INV;
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} else if(strcmp(txt, "Ok") == 0) {
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lv_app_kb_close(true);
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return LV_ACTION_RES_INV;
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} else {
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lv_ta_add_text(kb_ta, txt);
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}
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#if LV_APP_ANIM_LEVEL != 0
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lv_page_focus(lv_win_get_content(kb_win), kb_ta, true);
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#else
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lv_page_focus(kb_win, kb_ta, false);
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#endif
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return LV_ACTION_RES_OK;
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}
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#endif /*LV_APP_ENABLE != 0*/
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