643 lines
21 KiB
C
643 lines
21 KiB
C
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/**
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* @file lv_cont.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_cont.h"
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#if USE_LV_CONT != 0
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#include <stdint.h>
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#include <string.h>
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#include "../lv_draw/lv_draw.h"
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#include "../lv_draw/lv_draw_vbasic.h"
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#include "../lv_themes/lv_theme.h"
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#include "../lv_misc/lv_area.h"
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#include "../lv_misc/lv_color.h"
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#include "../lv_misc/lv_math.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_cont_signal(lv_obj_t * cont, lv_signal_t sign, void * param);
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static void lv_cont_refr_layout(lv_obj_t * cont);
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static void lv_cont_layout_col(lv_obj_t * cont);
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static void lv_cont_layout_row(lv_obj_t * cont);
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static void lv_cont_layout_center(lv_obj_t * cont);
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static void lv_cont_layout_pretty(lv_obj_t * cont);
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static void lv_cont_layout_grid(lv_obj_t * cont);
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static void lv_cont_refr_autofit(lv_obj_t * cont);
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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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/**********************
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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 container objects
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* @param par pointer to an object, it will be the parent of the new container
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* @param copy pointer to a container object, if not NULL then the new object will be copied from it
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* @return pointer to the created container
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*/
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lv_obj_t * lv_cont_create(lv_obj_t * par, const lv_obj_t * copy)
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{
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LV_LOG_TRACE("container create started");
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/*Create a basic object*/
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lv_obj_t * new_cont = lv_obj_create(par, copy);
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lv_mem_assert(new_cont);
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if(new_cont == NULL) return NULL;
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if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_func(new_cont);
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lv_obj_allocate_ext_attr(new_cont, sizeof(lv_cont_ext_t));
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lv_cont_ext_t * ext = lv_obj_get_ext_attr(new_cont);
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if(ext == NULL) return NULL;
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lv_mem_assert(ext);
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ext->hor_fit = 0;
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ext->ver_fit = 0;
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ext->layout = LV_LAYOUT_OFF;
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lv_obj_set_signal_func(new_cont, lv_cont_signal);
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/*Init the new container*/
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if(copy == NULL) {
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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_cont_set_style(new_cont, th->cont);
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} else {
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lv_cont_set_style(new_cont, &lv_style_pretty);
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}
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}
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/*Copy an existing object*/
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else {
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lv_cont_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
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ext->hor_fit = copy_ext->hor_fit;
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ext->ver_fit = copy_ext->ver_fit;
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ext->layout = copy_ext->layout;
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/*Refresh the style with new signal function*/
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lv_obj_refresh_style(new_cont);
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}
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LV_LOG_INFO("container created");
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return new_cont;
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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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* Set a layout on a container
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* @param cont pointer to a container object
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* @param layout a layout from 'lv_cont_layout_t'
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*/
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void lv_cont_set_layout(lv_obj_t * cont, lv_layout_t layout)
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{
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lv_cont_ext_t * ext = lv_obj_get_ext_attr(cont);
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if(ext->layout == layout) return;
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ext->layout = layout;
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/*Send a signal to refresh the layout*/
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cont->signal_func(cont, LV_SIGNAL_CHILD_CHG, NULL);
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}
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/**
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* Enable the horizontal or vertical fit.
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* The container size will be set to involve the children horizontally or vertically.
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* @param cont pointer to a container object
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* @param hor_en true: enable the horizontal fit
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* @param ver_en true: enable the vertical fit
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*/
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void lv_cont_set_fit(lv_obj_t * cont, bool hor_en, bool ver_en)
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{
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lv_obj_invalidate(cont);
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lv_cont_ext_t * ext = lv_obj_get_ext_attr(cont);
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if(ext->hor_fit == hor_en && ext->ver_fit == ver_en) return;
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ext->hor_fit = hor_en == false ? 0 : 1;
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ext->ver_fit = ver_en == false ? 0 : 1;
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/*Send a signal to refresh the layout*/
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cont->signal_func(cont, LV_SIGNAL_CHILD_CHG, NULL);
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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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* Get the layout of a container
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* @param cont pointer to container object
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* @return the layout from 'lv_cont_layout_t'
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*/
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lv_layout_t lv_cont_get_layout(const lv_obj_t * cont)
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{
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lv_cont_ext_t * ext = lv_obj_get_ext_attr(cont);
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return ext->layout;
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}
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/**
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* Get horizontal fit enable attribute of a container
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* @param cont pointer to a container object
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* @return true: horizontal fit is enabled; false: disabled
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*/
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bool lv_cont_get_hor_fit(const lv_obj_t * cont)
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{
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lv_cont_ext_t * ext = lv_obj_get_ext_attr(cont);
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return ext->hor_fit == 0 ? false : true;
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}
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/**
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* Get vertical fit enable attribute of a container
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* @param cont pointer to a container object
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* @return true: vertical fit is enabled; false: disabled
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*/
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bool lv_cont_get_ver_fit(const lv_obj_t * cont)
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{
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lv_cont_ext_t * ext = lv_obj_get_ext_attr(cont);
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return ext->ver_fit == 0 ? false : true;
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}
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/**
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* Get that width reduced by the horizontal padding. Useful if a layout is used.
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* @param cont pointer to a container object
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* @return the width which still fits into the container
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*/
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lv_coord_t lv_cont_get_fit_width(lv_obj_t * cont)
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{
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lv_style_t * style = lv_cont_get_style(cont);
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return lv_obj_get_width(cont) - 2 * style->body.padding.hor;
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}
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/**
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* Get that height reduced by the vertical padding. Useful if a layout is used.
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* @param cont pointer to a container object
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* @return the height which still fits into the container
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*/
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lv_coord_t lv_cont_get_fit_height(lv_obj_t * cont)
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{
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lv_style_t * style = lv_cont_get_style(cont);
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return lv_obj_get_height(cont) - 2 * style->body.padding.ver;
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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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* Signal function of the container
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* @param cont pointer to a container object
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* @param sign a signal type from lv_signal_t enum
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* @param param pointer to a signal specific variable
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* @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted
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*/
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static lv_res_t lv_cont_signal(lv_obj_t * cont, lv_signal_t sign, void * param)
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{
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lv_res_t res;
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/* Include the ancient signal function */
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res = ancestor_signal(cont, sign, param);
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if(res != LV_RES_OK) return res;
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if(sign == LV_SIGNAL_STYLE_CHG) { /*Recalculate the padding if the style changed*/
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lv_cont_refr_layout(cont);
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lv_cont_refr_autofit(cont);
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} else if(sign == LV_SIGNAL_CHILD_CHG) {
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lv_cont_refr_layout(cont);
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lv_cont_refr_autofit(cont);
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} else if(sign == LV_SIGNAL_CORD_CHG) {
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if(lv_obj_get_width(cont) != lv_area_get_width(param) ||
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lv_obj_get_height(cont) != lv_area_get_height(param)) {
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lv_cont_refr_layout(cont);
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lv_cont_refr_autofit(cont);
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}
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} else if(sign == LV_SIGNAL_GET_TYPE) {
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lv_obj_type_t * buf = param;
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uint8_t i;
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for(i = 0; i < LV_MAX_ANCESTOR_NUM - 1; i++) { /*Find the last set data*/
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if(buf->type[i] == NULL) break;
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}
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buf->type[i] = "lv_cont";
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}
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return res;
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}
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/**
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* Refresh the layout of a container
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* @param cont pointer to an object which layout should be refreshed
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*/
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static void lv_cont_refr_layout(lv_obj_t * cont)
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{
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lv_layout_t type = lv_cont_get_layout(cont);
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/*'cont' has to be at least 1 child*/
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if(lv_obj_get_child(cont, NULL) == NULL) return;
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if(type == LV_LAYOUT_OFF) return;
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if(type == LV_LAYOUT_CENTER) {
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lv_cont_layout_center(cont);
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} else if(type == LV_LAYOUT_COL_L || type == LV_LAYOUT_COL_M || type == LV_LAYOUT_COL_R) {
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lv_cont_layout_col(cont);
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} else if(type == LV_LAYOUT_ROW_T || type == LV_LAYOUT_ROW_M || type == LV_LAYOUT_ROW_B) {
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lv_cont_layout_row(cont);
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} else if(type == LV_LAYOUT_PRETTY) {
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lv_cont_layout_pretty(cont);
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} else if(type == LV_LAYOUT_GRID) {
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lv_cont_layout_grid(cont);
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}
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}
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/**
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* Handle column type layouts
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* @param cont pointer to an object which layout should be handled
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*/
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static void lv_cont_layout_col(lv_obj_t * cont)
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{
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lv_layout_t type = lv_cont_get_layout(cont);
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lv_obj_t * child;
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/*Adjust margin and get the alignment type*/
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lv_align_t align;
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lv_style_t * style = lv_obj_get_style(cont);
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lv_coord_t hpad_corr;
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switch(type) {
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case LV_LAYOUT_COL_L:
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hpad_corr = style->body.padding.hor;
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align = LV_ALIGN_IN_TOP_LEFT;
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break;
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case LV_LAYOUT_COL_M:
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hpad_corr = 0;
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align = LV_ALIGN_IN_TOP_MID;
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break;
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case LV_LAYOUT_COL_R:
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hpad_corr = -style->body.padding.hor;
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align = LV_ALIGN_IN_TOP_RIGHT;
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break;
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default:
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hpad_corr = 0;
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align = LV_ALIGN_IN_TOP_LEFT;
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break;
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}
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/* Disable child change action because the children will be moved a lot
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* an unnecessary child change signals could be sent*/
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lv_obj_set_protect(cont, LV_PROTECT_CHILD_CHG);
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/* Align the children */
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lv_coord_t last_cord = style->body.padding.ver;
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LL_READ_BACK(cont->child_ll, child) {
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if(lv_obj_get_hidden(child) != false ||
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lv_obj_is_protected(child, LV_PROTECT_POS) != false) continue;
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lv_obj_align(child, cont, align, hpad_corr, last_cord);
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last_cord += lv_obj_get_height(child) + style->body.padding.inner;
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}
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lv_obj_clear_protect(cont, LV_PROTECT_CHILD_CHG);
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}
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/**
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* Handle row type layouts
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* @param cont pointer to an object which layout should be handled
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*/
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static void lv_cont_layout_row(lv_obj_t * cont)
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{
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lv_layout_t type = lv_cont_get_layout(cont);
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lv_obj_t * child;
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/*Adjust margin and get the alignment type*/
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lv_align_t align;
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lv_style_t * style = lv_obj_get_style(cont);
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lv_coord_t vpad_corr = style->body.padding.ver;
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switch(type) {
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case LV_LAYOUT_ROW_T:
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vpad_corr = style->body.padding.ver;
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align = LV_ALIGN_IN_TOP_LEFT;
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break;
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case LV_LAYOUT_ROW_M:
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vpad_corr = 0;
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align = LV_ALIGN_IN_LEFT_MID;
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break;
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case LV_LAYOUT_ROW_B:
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vpad_corr = -style->body.padding.ver;
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align = LV_ALIGN_IN_BOTTOM_LEFT;
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break;
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default:
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vpad_corr = 0;
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align = LV_ALIGN_IN_TOP_LEFT;
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break;
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}
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/* Disable child change action because the children will be moved a lot
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|
|
* an unnecessary child change signals could be sent*/
|
||
|
|
lv_obj_set_protect(cont, LV_PROTECT_CHILD_CHG);
|
||
|
|
|
||
|
|
/* Align the children */
|
||
|
|
lv_coord_t last_cord = style->body.padding.hor;
|
||
|
|
LL_READ_BACK(cont->child_ll, child) {
|
||
|
|
if(lv_obj_get_hidden(child) != false ||
|
||
|
|
lv_obj_is_protected(child, LV_PROTECT_POS) != false) continue;
|
||
|
|
|
||
|
|
lv_obj_align(child, cont, align, last_cord, vpad_corr);
|
||
|
|
last_cord += lv_obj_get_width(child) + style->body.padding.inner;
|
||
|
|
}
|
||
|
|
|
||
|
|
lv_obj_clear_protect(cont, LV_PROTECT_CHILD_CHG);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handle the center layout
|
||
|
|
* @param cont pointer to an object which layout should be handled
|
||
|
|
*/
|
||
|
|
static void lv_cont_layout_center(lv_obj_t * cont)
|
||
|
|
{
|
||
|
|
lv_obj_t * child;
|
||
|
|
lv_style_t * style = lv_obj_get_style(cont);
|
||
|
|
uint32_t obj_num = 0;
|
||
|
|
lv_coord_t h_tot = 0;
|
||
|
|
|
||
|
|
LL_READ(cont->child_ll, child) {
|
||
|
|
if(lv_obj_get_hidden(child) != false ||
|
||
|
|
lv_obj_is_protected(child, LV_PROTECT_POS) != false) continue;
|
||
|
|
h_tot += lv_obj_get_height(child) + style->body.padding.inner;
|
||
|
|
obj_num ++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(obj_num == 0) return;
|
||
|
|
|
||
|
|
h_tot -= style->body.padding.inner;
|
||
|
|
|
||
|
|
/* Disable child change action because the children will be moved a lot
|
||
|
|
* an unnecessary child change signals could be sent*/
|
||
|
|
lv_obj_set_protect(cont, LV_PROTECT_CHILD_CHG);
|
||
|
|
|
||
|
|
/* Align the children */
|
||
|
|
lv_coord_t last_cord = - (h_tot / 2);
|
||
|
|
LL_READ_BACK(cont->child_ll, child) {
|
||
|
|
if(lv_obj_get_hidden(child) != false ||
|
||
|
|
lv_obj_is_protected(child, LV_PROTECT_POS) != false) continue;
|
||
|
|
|
||
|
|
lv_obj_align(child, cont, LV_ALIGN_CENTER, 0, last_cord + lv_obj_get_height(child) / 2);
|
||
|
|
last_cord += lv_obj_get_height(child) + style->body.padding.inner;
|
||
|
|
}
|
||
|
|
|
||
|
|
lv_obj_clear_protect(cont, LV_PROTECT_CHILD_CHG);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handle the pretty layout. Put as many object as possible in row
|
||
|
|
* then begin a new row
|
||
|
|
* @param cont pointer to an object which layout should be handled
|
||
|
|
*/
|
||
|
|
static void lv_cont_layout_pretty(lv_obj_t * cont)
|
||
|
|
{
|
||
|
|
lv_obj_t * child_rs; /* Row starter child */
|
||
|
|
lv_obj_t * child_rc; /* Row closer child */
|
||
|
|
lv_obj_t * child_tmp; /* Temporary child */
|
||
|
|
lv_style_t * style = lv_obj_get_style(cont);
|
||
|
|
lv_coord_t w_obj = lv_obj_get_width(cont);
|
||
|
|
lv_coord_t act_y = style->body.padding.ver;
|
||
|
|
/* Disable child change action because the children will be moved a lot
|
||
|
|
* an unnecessary child change signals could be sent*/
|
||
|
|
|
||
|
|
child_rs = lv_ll_get_tail(&cont->child_ll); /*Set the row starter child*/
|
||
|
|
if(child_rs == NULL) return; /*Return if no child*/
|
||
|
|
|
||
|
|
lv_obj_set_protect(cont, LV_PROTECT_CHILD_CHG);
|
||
|
|
|
||
|
|
child_rc = child_rs; /*Initially the the row starter and closer is the same*/
|
||
|
|
while(child_rs != NULL) {
|
||
|
|
lv_coord_t h_row = 0;
|
||
|
|
lv_coord_t w_row = style->body.padding.hor * 2; /*The width is at least the left+right hpad*/
|
||
|
|
uint32_t obj_num = 0;
|
||
|
|
|
||
|
|
/*Find the row closer object and collect some data*/
|
||
|
|
do {
|
||
|
|
if(lv_obj_get_hidden(child_rc) == false &&
|
||
|
|
lv_obj_is_protected(child_rc, LV_PROTECT_POS) == false) {
|
||
|
|
/*If this object is already not fit then break*/
|
||
|
|
if(w_row + lv_obj_get_width(child_rc) > w_obj) {
|
||
|
|
/*Step back one child because the last already not fit, so the previous is the closer*/
|
||
|
|
if(child_rc != NULL && obj_num != 0) {
|
||
|
|
child_rc = lv_ll_get_next(&cont->child_ll, child_rc);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
w_row += lv_obj_get_width(child_rc) + style->body.padding.inner; /*Add the object width + opad*/
|
||
|
|
h_row = LV_MATH_MAX(h_row, lv_obj_get_height(child_rc)); /*Search the highest object*/
|
||
|
|
obj_num ++;
|
||
|
|
if(lv_obj_is_protected(child_rc, LV_PROTECT_FOLLOW)) break; /*If can not be followed by an other object then break here*/
|
||
|
|
|
||
|
|
}
|
||
|
|
child_rc = lv_ll_get_prev(&cont->child_ll, child_rc); /*Load the next object*/
|
||
|
|
if(obj_num == 0) child_rs = child_rc; /*If the first object was hidden (or too long) then set the next as first */
|
||
|
|
} while(child_rc != NULL);
|
||
|
|
|
||
|
|
/*If the object is too long then align it to the middle*/
|
||
|
|
if(obj_num == 0) {
|
||
|
|
if(child_rc != NULL) {
|
||
|
|
lv_obj_align(child_rc, cont, LV_ALIGN_IN_TOP_MID, 0, act_y);
|
||
|
|
h_row = lv_obj_get_height(child_rc); /*Not set previously because of the early break*/
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/*If there is only one object in the row then align it to the middle*/
|
||
|
|
else if(obj_num == 1) {
|
||
|
|
lv_obj_align(child_rs, cont, LV_ALIGN_IN_TOP_MID, 0, act_y);
|
||
|
|
}
|
||
|
|
/*If there are two object in the row then align them proportionally*/
|
||
|
|
else if(obj_num == 2) {
|
||
|
|
lv_obj_t * obj1 = child_rs;
|
||
|
|
lv_obj_t * obj2 = lv_ll_get_prev(&cont->child_ll, child_rs);
|
||
|
|
w_row = lv_obj_get_width(obj1) + lv_obj_get_width(obj2);
|
||
|
|
lv_coord_t pad = (w_obj - w_row) / 3;
|
||
|
|
lv_obj_align(obj1, cont, LV_ALIGN_IN_TOP_LEFT, pad, act_y + (h_row - lv_obj_get_height(obj1)) / 2);
|
||
|
|
lv_obj_align(obj2, cont, LV_ALIGN_IN_TOP_RIGHT, -pad, act_y + (h_row - lv_obj_get_height(obj2)) / 2);
|
||
|
|
}
|
||
|
|
/* Align the children (from child_rs to child_rc)*/
|
||
|
|
else {
|
||
|
|
w_row -= style->body.padding.inner * obj_num;
|
||
|
|
lv_coord_t new_opad = (w_obj - w_row) / (obj_num - 1);
|
||
|
|
lv_coord_t act_x = style->body.padding.hor; /*x init*/
|
||
|
|
child_tmp = child_rs;
|
||
|
|
while(child_tmp != NULL) {
|
||
|
|
if(lv_obj_get_hidden(child_tmp) == false &&
|
||
|
|
lv_obj_is_protected(child_tmp, LV_PROTECT_POS) == false) {
|
||
|
|
lv_obj_align(child_tmp, cont, LV_ALIGN_IN_TOP_LEFT, act_x, act_y + (h_row - lv_obj_get_height(child_tmp)) / 2);
|
||
|
|
act_x += lv_obj_get_width(child_tmp) + new_opad;
|
||
|
|
}
|
||
|
|
if(child_tmp == child_rc) break;
|
||
|
|
child_tmp = lv_ll_get_prev(&cont->child_ll, child_tmp);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
if(child_rc == NULL) break;
|
||
|
|
act_y += style->body.padding.inner + h_row; /*y increment*/
|
||
|
|
child_rs = lv_ll_get_prev(&cont->child_ll, child_rc); /*Go to the next object*/
|
||
|
|
child_rc = child_rs;
|
||
|
|
}
|
||
|
|
lv_obj_clear_protect(cont, LV_PROTECT_CHILD_CHG);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handle the grid layout. Align same-sized objects in a grid
|
||
|
|
* @param cont pointer to an object which layout should be handled
|
||
|
|
*/
|
||
|
|
static void lv_cont_layout_grid(lv_obj_t * cont)
|
||
|
|
{
|
||
|
|
lv_obj_t * child;
|
||
|
|
lv_style_t * style = lv_obj_get_style(cont);
|
||
|
|
lv_coord_t w_tot = lv_obj_get_width(cont);
|
||
|
|
lv_coord_t w_obj = lv_obj_get_width(lv_obj_get_child(cont, NULL));
|
||
|
|
lv_coord_t h_obj = lv_obj_get_height(lv_obj_get_child(cont, NULL));
|
||
|
|
uint16_t obj_row = (w_tot - (2 * style->body.padding.hor)) / (w_obj + style->body.padding.inner); /*Obj. num. in a row*/
|
||
|
|
lv_coord_t x_ofs;
|
||
|
|
if(obj_row > 1) {
|
||
|
|
x_ofs = w_obj + (w_tot - (2 * style->body.padding.hor) - (obj_row * w_obj)) / (obj_row - 1);
|
||
|
|
} else {
|
||
|
|
x_ofs = w_tot / 2 - w_obj / 2;
|
||
|
|
}
|
||
|
|
lv_coord_t y_ofs = h_obj + style->body.padding.inner;
|
||
|
|
|
||
|
|
/* Disable child change action because the children will be moved a lot
|
||
|
|
* an unnecessary child change signals could be sent*/
|
||
|
|
lv_obj_set_protect(cont, LV_PROTECT_CHILD_CHG);
|
||
|
|
|
||
|
|
/* Align the children */
|
||
|
|
lv_coord_t act_x = style->body.padding.hor;
|
||
|
|
lv_coord_t act_y = style->body.padding.ver;
|
||
|
|
uint16_t obj_cnt = 0;
|
||
|
|
LL_READ_BACK(cont->child_ll, child) {
|
||
|
|
if(lv_obj_get_hidden(child) != false ||
|
||
|
|
lv_obj_is_protected(child, LV_PROTECT_POS) != false) continue;
|
||
|
|
|
||
|
|
if(obj_row > 1) {
|
||
|
|
lv_obj_set_pos(child, act_x, act_y);
|
||
|
|
act_x += x_ofs;
|
||
|
|
} else {
|
||
|
|
lv_obj_set_pos(child, x_ofs, act_y);
|
||
|
|
}
|
||
|
|
obj_cnt ++;
|
||
|
|
|
||
|
|
if(obj_cnt >= obj_row) {
|
||
|
|
obj_cnt = 0;
|
||
|
|
act_x = style->body.padding.hor;
|
||
|
|
act_y += y_ofs;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
lv_obj_clear_protect(cont, LV_PROTECT_CHILD_CHG);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handle auto fit. Set the size of the object to involve all children.
|
||
|
|
* @param cont pointer to an object which size will be modified
|
||
|
|
*/
|
||
|
|
static void lv_cont_refr_autofit(lv_obj_t * cont)
|
||
|
|
{
|
||
|
|
lv_cont_ext_t * ext = lv_obj_get_ext_attr(cont);
|
||
|
|
|
||
|
|
if(ext->hor_fit == 0 &&
|
||
|
|
ext->ver_fit == 0) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
lv_area_t new_cords;
|
||
|
|
lv_area_t ori;
|
||
|
|
lv_style_t * style = lv_obj_get_style(cont);
|
||
|
|
lv_obj_t * i;
|
||
|
|
lv_coord_t hpad = style->body.padding.hor;
|
||
|
|
lv_coord_t vpad = style->body.padding.ver;
|
||
|
|
|
||
|
|
/*Search the side coordinates of the children*/
|
||
|
|
lv_obj_get_coords(cont, &ori);
|
||
|
|
lv_obj_get_coords(cont, &new_cords);
|
||
|
|
|
||
|
|
new_cords.x1 = LV_COORD_MAX;
|
||
|
|
new_cords.y1 = LV_COORD_MAX;
|
||
|
|
new_cords.x2 = LV_COORD_MIN;
|
||
|
|
new_cords.y2 = LV_COORD_MIN;
|
||
|
|
|
||
|
|
LL_READ(cont->child_ll, i) {
|
||
|
|
if(lv_obj_get_hidden(i) != false) continue;
|
||
|
|
new_cords.x1 = LV_MATH_MIN(new_cords.x1, i->coords.x1);
|
||
|
|
new_cords.y1 = LV_MATH_MIN(new_cords.y1, i->coords.y1);
|
||
|
|
new_cords.x2 = LV_MATH_MAX(new_cords.x2, i->coords.x2);
|
||
|
|
new_cords.y2 = LV_MATH_MAX(new_cords.y2, i->coords.y2);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*If the value is not the init value then the page has >=1 child.*/
|
||
|
|
if(new_cords.x1 != LV_COORD_MAX) {
|
||
|
|
if(ext->hor_fit != 0) {
|
||
|
|
new_cords.x1 -= hpad;
|
||
|
|
new_cords.x2 += hpad;
|
||
|
|
} else {
|
||
|
|
new_cords.x1 = cont->coords.x1;
|
||
|
|
new_cords.x2 = cont->coords.x2;
|
||
|
|
}
|
||
|
|
if(ext->ver_fit != 0) {
|
||
|
|
new_cords.y1 -= vpad;
|
||
|
|
new_cords.y2 += vpad;
|
||
|
|
} else {
|
||
|
|
new_cords.y1 = cont->coords.y1;
|
||
|
|
new_cords.y2 = cont->coords.y2;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*Do nothing if the coordinates are not changed*/
|
||
|
|
if(cont->coords.x1 != new_cords.x1 ||
|
||
|
|
cont->coords.y1 != new_cords.y1 ||
|
||
|
|
cont->coords.x2 != new_cords.x2 ||
|
||
|
|
cont->coords.y2 != new_cords.y2) {
|
||
|
|
|
||
|
|
lv_obj_invalidate(cont);
|
||
|
|
lv_area_copy(&cont->coords, &new_cords);
|
||
|
|
lv_obj_invalidate(cont);
|
||
|
|
|
||
|
|
/*Notify the object about its new coordinates*/
|
||
|
|
cont->signal_func(cont, LV_SIGNAL_CORD_CHG, &ori);
|
||
|
|
|
||
|
|
/*Inform the parent about the new coordinates*/
|
||
|
|
lv_obj_t * par = lv_obj_get_parent(cont);
|
||
|
|
par->signal_func(par, LV_SIGNAL_CHILD_CHG, cont);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|