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https://github.com/CTCaer/hekate.git
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185526d134
BDK will allow developers to use the full collection of drivers, with limited editing, if any, for making payloads for Nintendo Switch. Using a single source for everything will also help decoupling Switch specific code and easily port it to other Tegra X1/X1+ platforms. And maybe even to lower targets. Everything is now centrilized into bdk folder. Every module or project can utilize it by simply including it. This is just the start and it will continue to improve.
408 lines
12 KiB
C
408 lines
12 KiB
C
/**
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* @file lv_img.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_img.h"
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#if USE_LV_IMG != 0
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/*Testing of dependencies*/
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#if USE_LV_LABEL == 0
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#error "lv_img: lv_label is required. Enable it in lv_conf.h (USE_LV_LABEL 1) "
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#endif
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#include "../lv_core/lv_lang.h"
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#include "../lv_themes/lv_theme.h"
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#include "../lv_misc/lv_fs.h"
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#include "../lv_misc/lv_ufs.h"
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#include "../lv_misc/lv_txt.h"
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#include "../lv_misc/lv_log.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 bool lv_img_design(lv_obj_t * img, const lv_area_t * mask, lv_design_mode_t mode);
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static lv_res_t lv_img_signal(lv_obj_t * img, lv_signal_t sign, void * param);
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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 an image objects
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* @param par pointer to an object, it will be the parent of the new button
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* @param copy pointer to a image object, if not NULL then the new object will be copied from it
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* @return pointer to the created image
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*/
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lv_obj_t * lv_img_create(lv_obj_t * par, const lv_obj_t * copy)
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{
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LV_LOG_TRACE("image create started");
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lv_obj_t * new_img = NULL;
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/*Create a basic object*/
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new_img = lv_obj_create(par, copy);
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lv_mem_assert(new_img);
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if(new_img == NULL) return NULL;
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if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_func(new_img);
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/*Extend the basic object to image object*/
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lv_img_ext_t * ext = lv_obj_allocate_ext_attr(new_img, sizeof(lv_img_ext_t));
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lv_mem_assert(ext);
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if(ext == NULL) return NULL;
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ext->src = NULL;
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ext->src_type = LV_IMG_SRC_UNKNOWN;
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ext->cf = LV_IMG_CF_UNKOWN;
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ext->w = lv_obj_get_width(new_img);
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ext->h = lv_obj_get_height(new_img);
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ext->auto_size = 1;
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#if USE_LV_MULTI_LANG
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ext->lang_txt_id = LV_LANG_TXT_ID_NONE;
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#endif
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/*Init the new object*/
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lv_obj_set_signal_func(new_img, lv_img_signal);
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lv_obj_set_design_func(new_img, lv_img_design);
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if(copy == NULL) {
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lv_obj_set_click(new_img, false);
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/* Enable auto size for non screens
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* because image screens are wallpapers
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* and must be screen sized*/
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if(par != NULL) {
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ext->auto_size = 1;
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lv_obj_set_style(new_img, NULL); /*Inherit the style by default*/
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} else {
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ext->auto_size = 0;
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lv_obj_set_style(new_img, &lv_style_plain); /*Set a style for screens*/
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}
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} else {
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lv_img_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
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ext->auto_size = copy_ext->auto_size;
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lv_img_set_src(new_img, copy_ext->src);
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/*Refresh the style with new signal function*/
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lv_obj_refresh_style(new_img);
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}
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LV_LOG_INFO("image created");
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return new_img;
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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 the pixel map to display by the image
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* @param img pointer to an image object
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* @param data the image data
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*/
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void lv_img_set_src(lv_obj_t * img, const void * src_img)
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{
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lv_img_src_t src_type = lv_img_src_get_type(src_img);
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lv_img_ext_t * ext = lv_obj_get_ext_attr(img);
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#if LV_LOG_LEVEL >= LV_LOG_LEVEL_INFO
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switch(src_type) {
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case LV_IMG_SRC_FILE:
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LV_LOG_TRACE("lv_img_set_src: `LV_IMG_SRC_FILE` type found");
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break;
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case LV_IMG_SRC_VARIABLE:
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LV_LOG_TRACE("lv_img_set_src: `LV_IMG_SRC_VARIABLE` type found");
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break;
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case LV_IMG_SRC_SYMBOL:
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LV_LOG_TRACE("lv_img_set_src: `LV_IMG_SRC_SYMBOL` type found");
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break;
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default:
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LV_LOG_WARN("lv_img_set_src: unknown type");
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}
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#endif
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/*If the new source type is unknown free the memories of the old source*/
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if(src_type == LV_IMG_SRC_UNKNOWN) {
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LV_LOG_WARN("lv_img_set_src: unknown image type");
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if(ext->src_type == LV_IMG_SRC_SYMBOL || ext->src_type == LV_IMG_SRC_FILE) {
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lv_mem_free(ext->src);
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}
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ext->src = NULL;
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ext->src_type = LV_IMG_SRC_UNKNOWN;
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return;
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}
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lv_img_header_t header;
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lv_img_dsc_get_info(src_img, &header);
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/*Save the source*/
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if(src_type == LV_IMG_SRC_VARIABLE) {
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LV_LOG_INFO("lv_img_set_src: `LV_IMG_SRC_VARIABLE` type found");
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/*If memory was allocated because of the previous `src_type` then free it*/
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if(ext->src_type == LV_IMG_SRC_FILE || ext->src_type == LV_IMG_SRC_SYMBOL) {
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lv_mem_free(ext->src);
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}
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ext->src = src_img;
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} else if(src_type == LV_IMG_SRC_FILE || src_type == LV_IMG_SRC_SYMBOL) {
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/* If the new and the old src are the same then it was only a refresh.*/
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if(ext->src != src_img) {
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/*If memory was allocated because of the previous `src_type` then free it*/
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if(ext->src_type == LV_IMG_SRC_FILE || ext->src_type == LV_IMG_SRC_SYMBOL) {
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lv_mem_free(ext->src);
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}
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char * new_str = lv_mem_alloc(strlen(src_img) + 1);
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lv_mem_assert(new_str);
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if(new_str == NULL) return;
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strcpy(new_str, src_img);
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ext->src = new_str;
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}
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}
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if(src_type == LV_IMG_SRC_SYMBOL) {
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/*`lv_img_dsc_get_info` couldn't set the with and height of a font so set it here*/
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lv_style_t * style = lv_img_get_style(img);
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lv_point_t size;
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lv_txt_get_size(&size, src_img, style->text.font, style->text.letter_space, style->text.line_space, LV_COORD_MAX, LV_TXT_FLAG_NONE);
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header.w = size.x;
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header.h = size.y;
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}
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ext->src_type = src_type;
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ext->w = header.w;
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ext->h = header.h;
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ext->cf = header.cf;
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if(lv_img_get_auto_size(img) != false) {
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lv_obj_set_size(img, ext->w, ext->h);
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}
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lv_obj_invalidate(img);
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}
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#if USE_LV_MULTI_LANG
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/**
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* Set an ID which means a the same source but in different languages
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* @param img pointer to an image object
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* @param src_id ID of the source
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*/
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void lv_img_set_src_id(lv_obj_t * img, uint32_t src_id)
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{
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lv_img_ext_t * ext = lv_obj_get_ext_attr(img);
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ext->lang_txt_id = src_id;
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/*Apply the new language*/
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img->signal_func(img, LV_SIGNAL_LANG_CHG, NULL);
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}
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#endif
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/**
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* Enable the auto size feature.
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* If enabled the object size will be same as the picture size.
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* @param img pointer to an image
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* @param en true: auto size enable, false: auto size disable
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*/
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void lv_img_set_auto_size(lv_obj_t * img, bool en)
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{
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lv_img_ext_t * ext = lv_obj_get_ext_attr(img);
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ext->auto_size = (en == false ? 0 : 1);
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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 source of the image
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* @param img pointer to an image object
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* @return the image source (symbol, file name or C array)
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*/
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const void * lv_img_get_src(lv_obj_t * img)
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{
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lv_img_ext_t * ext = lv_obj_get_ext_attr(img);
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return ext->src;
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}
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/**
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* Get the name of the file set for an image
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* @param img pointer to an image
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* @return file name
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*/
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const char * lv_img_get_file_name(const lv_obj_t * img)
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{
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lv_img_ext_t * ext = lv_obj_get_ext_attr(img);
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if(ext->src_type == LV_IMG_SRC_FILE) return ext->src;
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else return "";
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}
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#if USE_LV_MULTI_LANG
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/**
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* Get the source ID of the image. (Used by the multi-language feature)
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* @param img pointer to an image
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* @return ID of the source
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*/
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uint16_t lv_img_get_src_id(lv_obj_t * img)
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{
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lv_img_ext_t * ext = lv_obj_get_ext_attr(img);
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return ext->lang_txt_id;
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}
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#endif
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/**
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* Get the auto size enable attribute
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* @param img pointer to an image
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* @return true: auto size is enabled, false: auto size is disabled
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*/
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bool lv_img_get_auto_size(const lv_obj_t * img)
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{
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lv_img_ext_t * ext = lv_obj_get_ext_attr(img);
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return ext->auto_size == 0 ? false : true;
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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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* Handle the drawing related tasks of the images
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* @param img pointer to an object
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* @param mask the object will be drawn only in this area
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* @param mode LV_DESIGN_COVER_CHK: only check if the object fully covers the 'mask_p' area
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* (return 'true' if yes)
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* LV_DESIGN_DRAW: draw the object (always return 'true')
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* LV_DESIGN_DRAW_POST: drawing after every children are drawn
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* @param return true/false, depends on 'mode'
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*/
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static bool lv_img_design(lv_obj_t * img, const lv_area_t * mask, lv_design_mode_t mode)
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{
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lv_style_t * style = lv_obj_get_style(img);
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lv_img_ext_t * ext = lv_obj_get_ext_attr(img);
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if(mode == LV_DESIGN_COVER_CHK) {
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bool cover = false;
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if(ext->src_type == LV_IMG_SRC_UNKNOWN || ext->src_type == LV_IMG_SRC_SYMBOL) return false;
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if(ext->cf == LV_IMG_CF_TRUE_COLOR || ext->cf == LV_IMG_CF_RAW) cover = lv_area_is_in(mask, &img->coords);
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return cover;
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} else if(mode == LV_DESIGN_DRAW_MAIN) {
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if(ext->h == 0 || ext->w == 0) return true;
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lv_area_t coords;
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lv_opa_t opa_scale = lv_obj_get_opa_scale(img);
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lv_obj_get_coords(img, &coords);
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if(ext->src_type == LV_IMG_SRC_FILE || ext->src_type == LV_IMG_SRC_VARIABLE) {
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LV_LOG_TRACE("lv_img_design: start to draw image");
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lv_area_t cords_tmp;
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cords_tmp.y1 = coords.y1;
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cords_tmp.y2 = coords.y1 + ext->h - 1;
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for(; cords_tmp.y1 < coords.y2; cords_tmp.y1 += ext->h, cords_tmp.y2 += ext->h) {
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cords_tmp.x1 = coords.x1;
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cords_tmp.x2 = coords.x1 + ext->w - 1;
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for(; cords_tmp.x1 < coords.x2; cords_tmp.x1 += ext->w, cords_tmp.x2 += ext->w) {
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lv_draw_img(&cords_tmp, mask, ext->src, style, opa_scale);
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}
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}
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} else if(ext->src_type == LV_IMG_SRC_SYMBOL) {
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LV_LOG_TRACE("lv_img_design: start to draw symbol");
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lv_style_t style_mod;
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lv_style_copy(&style_mod, style);
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style_mod.text.color = style->image.color;
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lv_draw_label(&coords, mask, &style_mod, opa_scale, ext->src, LV_TXT_FLAG_NONE, NULL);
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} else {
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/*Trigger the error handler of image drawer*/
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LV_LOG_WARN("lv_img_design: image source type is unknown");
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lv_draw_img(&img->coords, mask, NULL, style, opa_scale);
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}
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}
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return true;
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}
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/**
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* Signal function of the image
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* @param img pointer to an image 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_img_signal(lv_obj_t * img, 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(img, sign, param);
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if(res != LV_RES_OK) return res;
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lv_img_ext_t * ext = lv_obj_get_ext_attr(img);
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if(sign == LV_SIGNAL_CLEANUP) {
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if(ext->src_type == LV_IMG_SRC_FILE || ext->src_type == LV_IMG_SRC_SYMBOL) {
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lv_mem_free(ext->src);
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ext->src = NULL;
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ext->src_type = LV_IMG_SRC_UNKNOWN;
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}
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} else if(sign == LV_SIGNAL_STYLE_CHG) {
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/*Refresh the file name to refresh the symbol text size*/
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if(ext->src_type == LV_IMG_SRC_SYMBOL) {
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lv_img_set_src(img, ext->src);
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}
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} else if(sign == LV_SIGNAL_LANG_CHG) {
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#if USE_LV_MULTI_LANG
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if(ext->lang_txt_id != LV_LANG_TXT_ID_NONE) {
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const char * lang_src = lv_lang_get_text(ext->lang_txt_id);
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if(lang_src) {
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lv_img_set_src(img, lang_src);
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} else {
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LV_LOG_WARN("lv_lang_get_text return NULL for an image's source");
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}
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}
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#endif
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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_img";
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}
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return res;
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}
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#endif
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