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hekate/nyx/nyx_gui/libs/lvgl/lv_objx/lv_mbox.c
ctcaer@gmail.com c41f98039c [Nyx] Introducing hekate GUI, named Nyx! 
Version 0.8.0.

Expect dragons!
2019-06-30 04:03:00 +03:00

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/*
* Copyright (c) 2019 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file lv_mbox.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_mbox.h"
#if USE_LV_MBOX != 0
#include "../lv_core/lv_group.h"
#include "../lv_themes/lv_theme.h"
#include "../lv_misc/lv_anim.h"
#include "../lv_misc/lv_math.h"
/*********************
* DEFINES
*********************/
#if USE_LV_ANIMATION
# ifndef LV_MBOX_CLOSE_ANIM_TIME
# define LV_MBOX_CLOSE_ANIM_TIME 200 /*List close animation time) */
# endif
#else
# undef LV_MBOX_CLOSE_ANIM_TIME
# define LV_MBOX_CLOSE_ANIM_TIME 0 /*No animations*/
#endif
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static lv_res_t lv_mbox_signal(lv_obj_t * mbox, lv_signal_t sign, void * param);
static void mbox_realign(lv_obj_t * mbox);
static lv_res_t lv_mbox_close_action(lv_obj_t * btn, const char * txt);
#if USE_LV_ANIMATION
static void lv_mbox_close_end_cb(lv_obj_t * mbox);
#endif
/**********************
* STATIC VARIABLES
**********************/
static lv_signal_func_t ancestor_signal;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Create a message box objects
* @param par pointer to an object, it will be the parent of the new message box
* @param copy pointer to a message box object, if not NULL then the new object will be copied from it
* @return pointer to the created message box
*/
lv_obj_t * lv_mbox_create(lv_obj_t * par, const lv_obj_t * copy)
{
LV_LOG_TRACE("mesasge box create started");
/*Create the ancestor message box*/
lv_obj_t * new_mbox = lv_cont_create(par, copy);
lv_mem_assert(new_mbox);
if(new_mbox == NULL) return NULL;
if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_func(new_mbox);
/*Allocate the message box type specific extended data*/
lv_mbox_ext_t * ext = lv_obj_allocate_ext_attr(new_mbox, sizeof(lv_mbox_ext_t));
lv_mem_assert(ext);
if(ext == NULL) return NULL;
ext->text = NULL;
ext->btnm = NULL;
ext->anim_time = LV_MBOX_CLOSE_ANIM_TIME;
/*The signal and design functions are not copied so set them here*/
lv_obj_set_signal_func(new_mbox, lv_mbox_signal);
/*Init the new message box message box*/
if(copy == NULL) {
ext->text = lv_label_create(new_mbox, NULL);
lv_label_set_align(ext->text, LV_LABEL_ALIGN_CENTER);
lv_label_set_long_mode(ext->text, LV_LABEL_LONG_BREAK);
lv_label_set_text(ext->text, "Message");
lv_cont_set_layout(new_mbox, LV_LAYOUT_COL_M);
lv_cont_set_fit(new_mbox, false, true);
lv_obj_set_width(new_mbox, LV_HOR_RES / 2);
lv_obj_align(new_mbox, NULL, LV_ALIGN_CENTER, 0, 0);
/*Set the default styles*/
lv_theme_t * th = lv_theme_get_current();
if(th) {
lv_mbox_set_style(new_mbox, LV_MBOX_STYLE_BG, th->mbox.bg);
} else {
lv_mbox_set_style(new_mbox, LV_MBOX_STYLE_BG, &lv_style_pretty);
}
}
/*Copy an existing message box*/
else {
lv_mbox_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
ext->text = lv_label_create(new_mbox, copy_ext->text);
/*Copy the buttons and the label on them*/
if(copy_ext->btnm) ext->btnm = lv_btnm_create(new_mbox, copy_ext->btnm);
/*Refresh the style with new signal function*/
lv_obj_refresh_style(new_mbox);
}
LV_LOG_INFO("mesasge box created");
return new_mbox;
}
/*======================
* Add/remove functions
*=====================*/
/**
* Add button to the message box
* @param mbox pointer to message box object
* @param btn_map button descriptor (button matrix map).
* E.g. a const char *txt[] = {"ok", "close", ""} (Can not be local variable)
* @param action a function which will be called when a button is released
*/
void lv_mbox_add_btns(lv_obj_t * mbox, const char ** btn_map, lv_btnm_action_t action)
{
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
/*Create a button matrix if not exists yet*/
if(ext->btnm == NULL) {
ext->btnm = lv_btnm_create(mbox, NULL);
/*Set the default styles*/
lv_theme_t * th = lv_theme_get_current();
if(th) {
lv_mbox_set_style(mbox, LV_MBOX_STYLE_BTN_BG, th->mbox.btn.bg);
lv_mbox_set_style(mbox, LV_MBOX_STYLE_BTN_REL, th->mbox.btn.rel);
lv_mbox_set_style(mbox, LV_MBOX_STYLE_BTN_PR, th->mbox.btn.pr);
} else {
lv_btnm_set_style(ext->btnm, LV_BTNM_STYLE_BG, &lv_style_transp_fit);
}
}
lv_btnm_set_map(ext->btnm, btn_map);
if(action == NULL) lv_btnm_set_action(ext->btnm, lv_mbox_close_action); /*Set a default action anyway*/
else lv_btnm_set_action(ext->btnm, action);
mbox_realign(mbox);
}
/*=====================
* Setter functions
*====================*/
/**
* Set the text of the message box
* @param mbox pointer to a message box
* @param txt a '\0' terminated character string which will be the message box text
*/
void lv_mbox_set_text(lv_obj_t * mbox, const char * txt)
{
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
lv_label_set_text(ext->text, txt);
mbox_realign(mbox);
}
/**
* Stop the action to call when button is released
* @param pointer to an 'lv_btnm_action_t' action. In the action you need to use `lv_mbox_get_from_btn()` to get the `mbox`.
* @param pointer to an 'lv_btnm_action_t' action
*/
void lv_mbox_set_action(lv_obj_t * mbox, lv_btnm_action_t action)
{
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
lv_btnm_set_action(ext->btnm, action);
}
/**
* Set animation duration
* @param mbox pointer to a message box object
* @param anim_time animation length in milliseconds (0: no animation)
*/
void lv_mbox_set_anim_time(lv_obj_t * mbox, uint16_t anim_time)
{
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
#if USE_LV_ANIMATION == 0
anim_time = 0;
#endif
ext->anim_time = anim_time;
}
/**
* Automatically delete the message box after a given time
* @param mbox pointer to a message box object
* @param delay a time (in milliseconds) to wait before delete the message box
*/
void lv_mbox_start_auto_close(lv_obj_t * mbox, uint16_t delay)
{
#if USE_LV_ANIMATION
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
if(ext->anim_time != 0) {
/*Add shrinking animations*/
lv_obj_animate(mbox, LV_ANIM_GROW_H | LV_ANIM_OUT, ext->anim_time, delay, NULL);
lv_obj_animate(mbox, LV_ANIM_GROW_V | LV_ANIM_OUT, ext->anim_time, delay, lv_mbox_close_end_cb);
/*Disable fit to let shrinking work*/
lv_cont_set_fit(mbox, false, false);
} else {
lv_obj_animate(mbox, LV_ANIM_NONE, ext->anim_time, delay, lv_mbox_close_end_cb);
}
#else
(void)delay; /*Unused*/
lv_obj_del(mbox);
#endif
}
/**
* Stop the auto. closing of message box
* @param mbox pointer to a message box object
*/
void lv_mbox_stop_auto_close(lv_obj_t * mbox)
{
#if USE_LV_ANIMATION
lv_anim_del(mbox, NULL);
#else
(void)mbox; /*Unused*/
#endif
}
/**
* Set a style of a message box
* @param mbox pointer to a message box object
* @param type which style should be set
* @param style pointer to a style
*/
void lv_mbox_set_style(lv_obj_t * mbox, lv_mbox_style_t type, lv_style_t * style)
{
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
switch(type) {
case LV_MBOX_STYLE_BG:
lv_obj_set_style(mbox, style);
break;
case LV_MBOX_STYLE_BTN_BG:
lv_btnm_set_style(ext->btnm, LV_BTNM_STYLE_BG, style);
break;
case LV_MBOX_STYLE_BTN_REL:
lv_btnm_set_style(ext->btnm, LV_BTNM_STYLE_BTN_REL, style);
break;
case LV_MBOX_STYLE_BTN_PR:
lv_btnm_set_style(ext->btnm, LV_BTNM_STYLE_BTN_PR, style);
break;
case LV_MBOX_STYLE_BTN_TGL_REL:
lv_btnm_set_style(ext->btnm, LV_BTNM_STYLE_BTN_TGL_REL, style);
break;
case LV_MBOX_STYLE_BTN_TGL_PR:
lv_btnm_set_style(ext->btnm, LV_BTNM_STYLE_BTN_TGL_PR, style);
break;
case LV_MBOX_STYLE_BTN_INA:
lv_btnm_set_style(ext->btnm, LV_BTNM_STYLE_BTN_INA, style);
break;
}
mbox_realign(mbox);
}
/**
* Set whether recoloring is enabled
* @param btnm pointer to button matrix object
* @param en whether recoloring is enabled
*/
void lv_mbox_set_recolor(lv_obj_t * mbox, bool en)
{
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
if(ext->btnm)
lv_btnm_set_recolor(ext->btnm, en);
}
void lv_mbox_set_recolor_text(lv_obj_t * mbox, bool en)
{
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
if (ext->text)
lv_label_set_recolor(ext->text, en);
}
/*=====================
* Getter functions
*====================*/
/**
* Get the text of the message box
* @param mbox pointer to a message box object
* @return pointer to the text of the message box
*/
const char * lv_mbox_get_text(const lv_obj_t * mbox)
{
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
return lv_label_get_text(ext->text);
}
/**
* Get the message box object from one of its button.
* It is useful in the button release actions where only the button is known
* @param btn pointer to a button of a message box
* @return pointer to the button's message box
*/
lv_obj_t * lv_mbox_get_from_btn(const lv_obj_t * btn)
{
lv_obj_t * mbox = lv_obj_get_parent(btn);
return mbox;
}
/**
* Get the animation duration (close animation time)
* @param mbox pointer to a message box object
* @return animation length in milliseconds (0: no animation)
*/
uint16_t lv_mbox_get_anim_time(const lv_obj_t * mbox)
{
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
return ext->anim_time;
}
/**
* Get a style of a message box
* @param mbox pointer to a message box object
* @param type which style should be get
* @return style pointer to a style
*/
lv_style_t * lv_mbox_get_style(const lv_obj_t * mbox, lv_mbox_style_t type)
{
lv_style_t * style = NULL;
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
switch(type) {
case LV_MBOX_STYLE_BG:
style = lv_obj_get_style(mbox);
break;
case LV_MBOX_STYLE_BTN_BG:
style = lv_btnm_get_style(ext->btnm, LV_BTNM_STYLE_BG);
break;
case LV_MBOX_STYLE_BTN_REL:
style = lv_btnm_get_style(ext->btnm, LV_BTNM_STYLE_BTN_REL);
break;
case LV_MBOX_STYLE_BTN_PR:
style = lv_btnm_get_style(ext->btnm, LV_BTNM_STYLE_BTN_PR);
break;
case LV_MBOX_STYLE_BTN_TGL_REL:
style = lv_btnm_get_style(ext->btnm, LV_BTNM_STYLE_BTN_TGL_REL);
break;
case LV_MBOX_STYLE_BTN_TGL_PR:
style = lv_btnm_get_style(ext->btnm, LV_BTNM_STYLE_BTN_TGL_PR);
break;
case LV_MBOX_STYLE_BTN_INA:
style = lv_btnm_get_style(ext->btnm, LV_BTNM_STYLE_BTN_INA);
break;
default:
style = NULL;
break;
}
return style;
}
/**
* Get whether recoloring is enabled
* @param btnm pointer to button matrix object
* @return whether recoloring is enabled
*/
bool lv_mbox_get_recolor(const lv_obj_t * mbox)
{
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
if(!ext->btnm)
return false;
return lv_btnm_get_recolor(ext->btnm);
}
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Signal function of the message box
* @param mbox pointer to a message box 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_mbox_signal(lv_obj_t * mbox, lv_signal_t sign, void * param)
{
lv_res_t res;
/*Translate LV_GROUP_KEY_UP/DOWN to LV_GROUP_KEY_LEFT/RIGHT */
char c_trans = 0;
if(sign == LV_SIGNAL_CONTROLL) {
c_trans = *((char *)param);
if(c_trans == LV_GROUP_KEY_DOWN) c_trans = LV_GROUP_KEY_LEFT;
if(c_trans == LV_GROUP_KEY_UP) c_trans = LV_GROUP_KEY_RIGHT;
param = &c_trans;
}
/* Include the ancient signal function */
res = ancestor_signal(mbox, sign, param);
if(res != LV_RES_OK) return res;
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
if(sign == LV_SIGNAL_CORD_CHG) {
if(lv_obj_get_width(mbox) != lv_area_get_width(param)) {
mbox_realign(mbox);
}
} else if(sign == LV_SIGNAL_STYLE_CHG) {
mbox_realign(mbox);
} else if(sign == LV_SIGNAL_FOCUS || sign == LV_SIGNAL_DEFOCUS ||
sign == LV_SIGNAL_CONTROLL || sign == LV_SIGNAL_GET_EDITABLE) {
if(ext->btnm) {
ext->btnm->signal_func(ext->btnm, sign, param);
}
/* The button matrix with ENCODER input supposes it's in a group but in this case it isn't (Only the message box's container)
* So so some actions here instead*/
if(sign == LV_SIGNAL_FOCUS) {
#if USE_LV_GROUP
lv_indev_t * indev = lv_indev_get_act();
lv_hal_indev_type_t indev_type = lv_indev_get_type(indev);
if(indev_type == LV_INDEV_TYPE_ENCODER) {
/*In navigation mode don't select any button but in edit mode select the fist*/
lv_btnm_ext_t * btnm_ext = lv_obj_get_ext_attr(ext->btnm);
if(lv_group_get_editing(lv_obj_get_group(mbox))) btnm_ext->btn_id_pr = 0;
else btnm_ext->btn_id_pr = LV_BTNM_PR_NONE;
}
#endif
}
} 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_mbox";
}
return res;
}
/**
* Resize the button holder to fit
* @param mbox pointer to message box object
*/
static void mbox_realign(lv_obj_t * mbox)
{
lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
lv_style_t * style = lv_mbox_get_style(mbox, LV_MBOX_STYLE_BG);
lv_coord_t w = lv_obj_get_width(mbox) - 2 * style->body.padding.hor;
if(ext->text) {
lv_obj_set_width(ext->text, w);
}
if(ext->btnm) {
lv_style_t * btn_bg_style = lv_mbox_get_style(mbox, LV_MBOX_STYLE_BTN_BG);
lv_style_t * btn_rel_style = lv_mbox_get_style(mbox, LV_MBOX_STYLE_BTN_REL);
lv_coord_t font_h = lv_font_get_height(btn_rel_style->text.font);
lv_obj_set_size(ext->btnm, w, font_h + 2 * btn_rel_style->body.padding.ver + 2 * btn_bg_style->body.padding.ver);
}
}
static lv_res_t lv_mbox_close_action(lv_obj_t * btn, const char * txt)
{
lv_obj_t * mbox = lv_mbox_get_from_btn(btn);
if(txt[0] != '\0') {
lv_mbox_start_auto_close(mbox, 0);
return LV_RES_INV;
}
return LV_RES_OK;
}
#if USE_LV_ANIMATION
static void lv_mbox_close_end_cb(lv_obj_t * mbox)
{
lv_obj_del(mbox);
}
#endif
#endif
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