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lvgl/lv_appx/lv_app_terminal.c
Kiss-Vamosi Gabor 966bdd0cc6 lv_app_terminal addded
2016-12-30 21:49:19 +01:00

375 lines
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C
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/**
* @file lv_app_terminal.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_app_terminal.h"
#if LV_APP_ENABLE != 0 && USE_LV_APP_TERMINAL != 0
#include "../lv_app/lv_app_util/lv_app_kb.h"
#include <stdio.h>
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/*Application specific data for an instance of this application*/
typedef struct
{
char txt[LV_APP_TERMINAL_LENGTH + 1];
lv_app_com_type_t com_type;
}my_app_data_t;
/*Application specific data a window of this application*/
typedef struct
{
lv_obj_t * label;
lv_obj_t * ta;
lv_obj_t * com_type_btn;
}my_win_data_t;
/*Application specific data for a shortcut of this application*/
typedef struct
{
lv_obj_t * label;
}my_sc_data_t;
/**********************
* STATIC PROTOTYPES
**********************/
static void my_app_run(lv_app_inst_t * app, const char * cstr, void * conf);
static void my_app_close(lv_app_inst_t * app);
static void my_com_rec(lv_app_inst_t * app_send, lv_app_inst_t * app_rec, lv_app_com_type_t type , const void * data, uint32_t size);
static void my_sc_open(lv_app_inst_t * app, lv_obj_t * sc);
static void my_sc_close(lv_app_inst_t * app);
static void my_win_open(lv_app_inst_t * app, lv_obj_t * win);
static void my_win_close(lv_app_inst_t * app);
static void add_data(lv_app_inst_t * app, const void * data, uint16_t data_len);
static lv_action_res_t win_ta_rel_action(lv_obj_t * ta, lv_dispi_t * dispi);
static lv_action_res_t win_comch_rel_action(lv_obj_t * btn, lv_dispi_t * dispi);
static void win_ta_kb_ok_action(lv_obj_t * ta);
/**********************
* STATIC VARIABLES
**********************/
static lv_app_dsc_t my_app_dsc =
{
.name = "Terminal",
.mode = LV_APP_MODE_NONE,
.app_run = my_app_run,
.app_close = my_app_close,
.com_rec = my_com_rec,
.win_open = my_win_open,
.win_close = my_win_close,
.sc_open = my_sc_open,
.sc_close = my_sc_close,
.app_data_size = sizeof(my_app_data_t),
.sc_data_size = sizeof(my_sc_data_t),
.win_data_size = sizeof(my_win_data_t),
};
const char * com_type_txt [LV_APP_COM_TYPE_NUM];
lv_objs_t sc_txt_bgs;
lv_labels_t sc_txts;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Initialize the application
* @return pointer to the application descriptor of this application
*/
const lv_app_dsc_t * lv_app_terminal_init(void)
{
com_type_txt[LV_APP_COM_TYPE_INT] = "Comm. ch.\nnumbers";
com_type_txt[LV_APP_COM_TYPE_CHAR] = "Comm. ch.\nchars";
com_type_txt[LV_APP_COM_TYPE_LOG] = "Comm. ch.\nlog";
com_type_txt[LV_APP_COM_TYPE_INV] = "Comm. ch.\nnone";
lv_app_style_t * app_style = lv_app_style_get();
memcpy(&sc_txts, &app_style->sc_txt_style, sizeof(lv_labels_t));
sc_txts.line_space = 0;
sc_txts.letter_space = 0;
sc_txts.objs.color = COLOR_WHITE;
lv_objs_get(LV_OBJS_DEF, &sc_txt_bgs);
sc_txt_bgs.color = COLOR_MAKE(0x20, 0x20, 0x20);
return &my_app_dsc;
}
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Run an application according to 'app_dsc'
* @param app_dsc pointer to an application descriptor
* @param cstr a Create STRing which can give initial parameters to the application (NULL or "" if unused)
* @param conf pointer to a lv_app_example_conf_t structure with configuration data or NULL if unused
* @return pointer to the opened application or NULL if any error occurred
*/
static void my_app_run(lv_app_inst_t * app, const char * cstr, void * conf)
{
/*Initialize the application*/
my_app_data_t * app_data = app->app_data;
app_data->com_type = LV_APP_COM_TYPE_CHAR;
}
/**
* Close a running application.
* Close the Window and the Shortcut too if opened.
* Free all the allocated memory by this application.
* @param app pointer to an application
*/
static void my_app_close(lv_app_inst_t * app)
{
/*No dynamically allocated data in 'my_app_data'*/
}
/**
* Read the data have been sent to this applicationstring
* @param app_send pointer to an application which sent the message
* @param app_rec pointer to an application which is receiving the message
* @param type type of data from 'lv_app_com_type_t' enum
* @param data pointer to the sent data
* @param size length of 'data' in bytes
*/
static void my_com_rec(lv_app_inst_t * app_send, lv_app_inst_t * app_rec,
lv_app_com_type_t type , const void * data, uint32_t size)
{
my_app_data_t * app_data = app_rec->app_data;
/*Add the recevied data if the type is matches*/
if(type == app_data->com_type) {
add_data(app_rec, "@", 1);
add_data(app_rec, app_send->name, strlen(app_send->name));
add_data(app_rec, "\n", 1);
add_data(app_rec, data, size);
add_data(app_rec, "\n", 1);
}
}
/**
* Open a shortcut for an application
* @param app pointer to an application
* @param sc pointer to an object where the application
* can create content of the shortcut
*/
static void my_sc_open(lv_app_inst_t * app, lv_obj_t * sc)
{
my_sc_data_t * sc_data = app->sc_data;
my_app_data_t * app_data = app->app_data;
/*Create a dark background*/
lv_obj_t * txt_bg = lv_obj_create(sc, NULL);
lv_obj_set_size(txt_bg, 7 * LV_APP_SC_WIDTH / 8 , app->sc->cords.y2 - app->sc_title->cords.y2 - 10 * LV_DOWNSCALE);
lv_obj_set_style(txt_bg, &sc_txt_bgs);
lv_obj_align(txt_bg, app->sc_title, LV_ALIGN_OUT_BOTTOM_MID, 0, 3 * LV_DOWNSCALE);
lv_obj_set_click(txt_bg, false);
/*Add a text with the text of the terminal*/
sc_data->label = lv_label_create(txt_bg, NULL);
lv_obj_set_style(sc_data->label, &sc_txts);
lv_label_set_long_mode(sc_data->label, LV_LABEL_LONG_BREAK);
lv_obj_set_width(sc_data->label, lv_obj_get_width(txt_bg) - LV_APP_SC_WIDTH / 8);
lv_label_set_text_static(sc_data->label, app_data->txt);
lv_obj_align(sc_data->label, txt_bg, LV_ALIGN_IN_BOTTOM_MID, 0, 0);
}
/**
* Close the shortcut of an application
* @param app pointer to an application
*/
static void my_sc_close(lv_app_inst_t * app)
{
/*No dynamically allocated data in 'my_sc_data'*/
}
/**
* Open the application in a window
* @param app pointer to an application
* @param win pointer to a window object where
* the application can create content
*/
static void my_win_open(lv_app_inst_t * app, lv_obj_t * win)
{
my_win_data_t * win_data = app->win_data;
my_app_data_t * app_data = app->app_data;
lv_app_style_t * app_style = lv_app_style_get();
cord_t opad = app_style->win_style.content.scrable_rects.opad;
/*Create a label for the text of the terminal*/
win_data->label = lv_label_create(win, NULL);
lv_label_set_long_mode(win_data->label, LV_LABEL_LONG_BREAK);
lv_obj_set_width(win_data->label, LV_HOR_RES -
2 * (app_style->win_style.content.bg_rects.hpad +
app_style->win_style.content.scrable_rects.hpad));
lv_obj_set_style(win_data->label, &app_style->win_txt_style);
lv_label_set_text_static(win_data->label, app_data->txt); /*Use the app. data text directly*/
/*Create a text area. Text can be added to the terminal from here by app. keyboard.*/
win_data->ta = lv_ta_create(win, NULL);
lv_obj_set_size(win_data->ta, LV_HOR_RES / 2, LV_VER_RES / 4);
lv_obj_align(win_data->ta, win_data->label, LV_ALIGN_OUT_BOTTOM_LEFT, 0, opad);
lv_obj_set_free_p(win_data->ta, app);
lv_page_set_rel_action(win_data->ta, win_ta_rel_action);
lv_ta_set_text(win_data->ta, "");
/*Creat a button to set the communication type (char, integer etc.)*/
win_data->com_type_btn = lv_btn_create(win, NULL);
lv_rect_set_fit(win_data->com_type_btn, true, true);
lv_obj_set_free_p(win_data->com_type_btn, app);
lv_btn_set_rel_action(win_data->com_type_btn, win_comch_rel_action);
lv_obj_t * btn_label = lv_label_create(win_data->com_type_btn, NULL);
lv_obj_set_style(btn_label, lv_labels_get(LV_LABELS_BTN, NULL));
lv_label_set_text(btn_label, com_type_txt[app_data->com_type]);
lv_obj_align(win_data->com_type_btn, win_data->ta, LV_ALIGN_OUT_RIGHT_TOP, opad, 0);
/*Align the window to see the text area on the bottom*/
lv_obj_align(lv_page_get_scrable(lv_win_get_content(app->win)), NULL, LV_ALIGN_IN_BOTTOM_LEFT,
0, - app_style->win_style.content.scrable_rects.vpad);
}
/**
* Close the window of an application
* @param app pointer to an application
*/
static void my_win_close(lv_app_inst_t * app)
{
}
/*--------------------
* OTHER FUNCTIONS
---------------------*/
/**
* Called when the Text area is released to open the app. keybard
* @param ta pointer to the text area
* @param dispi pointer to the caller display input
* @return LV_ACTION_RES_OK because the text area is not deleted
*/
static lv_action_res_t win_ta_rel_action(lv_obj_t * ta, lv_dispi_t * dispi)
{
lv_app_kb_open(ta, LV_APP_KB_MODE_TXT, NULL, win_ta_kb_ok_action);
return LV_ACTION_RES_OK;
}
/**
* Called when the communication type button is released to change the type
* @param btn pointer to the comm. type button
* @param dispi pointer to the caller display input
* @return LV_ACTION_RES_OK because the button is not deleted
*/
static lv_action_res_t win_comch_rel_action(lv_obj_t * btn, lv_dispi_t * dispi)
{
lv_app_inst_t * app = lv_obj_get_free_p(btn);
my_app_data_t * app_data = app->app_data;
my_win_data_t * win_data = app->win_data;
if(app_data->com_type == LV_APP_COM_TYPE_CHAR) app_data->com_type = LV_APP_COM_TYPE_LOG;
else if(app_data->com_type == LV_APP_COM_TYPE_LOG) app_data->com_type = LV_APP_COM_TYPE_INT;
else if(app_data->com_type == LV_APP_COM_TYPE_INT) app_data->com_type = LV_APP_COM_TYPE_INV;
else app_data->com_type = LV_APP_COM_TYPE_CHAR;
lv_label_set_text(lv_obj_get_child(win_data->com_type_btn, NULL), com_type_txt[app_data->com_type]);
return LV_ACTION_RES_OK;
}
/**
* Called when the 'Ok' button of the keyboard in the window
* is pressed to write to the Terminal
* @param ta pointer to the Text area in the window
*/
static void win_ta_kb_ok_action(lv_obj_t * ta)
{
lv_app_inst_t * app = lv_obj_get_free_p(ta);
const char * ta_txt = lv_ta_get_txt(ta);
uint32_t ta_txt_len = strlen(ta_txt);
add_data(app, ">", 1);
add_data(app, ta_txt, ta_txt_len);
add_data(app, "\n", 1);
my_app_data_t * app_data = app->app_data;
lv_app_com_send(app, app_data->com_type, ta_txt, ta_txt_len);
lv_ta_set_text(ta, "");
}
/**
* Add data to the terminal
* @param app pointer to a Terminal application
* @param data pointer to the data
* @param data_len length of 'data' in bytes
*/
static void add_data(lv_app_inst_t * app, const void * data, uint16_t data_len)
{
my_app_data_t * app_data = app->app_data;
uint16_t old_len = strlen(app_data->txt);
const char * txt = data;
/*If the text become too long 'forget' the oldest lines*/
if(old_len + data_len > LV_APP_TERMINAL_LENGTH) {
uint16_t i;
for(i = 0; i < old_len; i++) {
if(app_data->txt[i] == '\n') {
/*If there is enough space break*/
if(i >= data_len) {
/*Ignore line braks*/
while(app_data->txt[i] == '\n' || app_data->txt[i] == '\r') i++;
break;
}
}
}
uint16_t j;
for(j = i; j < old_len; j++) {
app_data->txt[j - i] = app_data->txt[j];
}
old_len = old_len - i;
app_data->txt[old_len] = '\0';
}
memcpy(&app_data->txt[old_len], txt, data_len);
app_data->txt[old_len + data_len] = '\0';
my_win_data_t * win_data = app->win_data;
my_sc_data_t * sc_data = app->sc_data;
lv_app_style_t * app_style = lv_app_style_get();
if(win_data != NULL) {
cord_t opad = app_style->win_style.content.scrable_rects.opad;
lv_label_set_text_static(win_data->label, app_data->txt);
lv_obj_align(win_data->ta, win_data->label, LV_ALIGN_OUT_BOTTOM_LEFT, 0, opad);
lv_obj_align(win_data->com_type_btn, win_data->ta, LV_ALIGN_OUT_RIGHT_TOP, opad, 0);
lv_obj_align(lv_page_get_scrable(lv_win_get_content(app->win)), NULL, LV_ALIGN_IN_BOTTOM_LEFT, 0, - app_style->win_style.content.scrable_rects.vpad);
}
/*Set the last line on the shortcut*/
if(sc_data != NULL) {
lv_label_set_text_static(sc_data->label, app_data->txt);
lv_obj_align(sc_data->label, NULL, LV_ALIGN_IN_BOTTOM_LEFT, 0, 0);
}
}
#endif /*LV_APP_ENABLE != 0 && USE_LV_APP_TERMINAL != 0*/
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