Th3maz1ng/W800_Smart_Watch
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Reworked the common screen header to add scrolling when the title is too long and to be able to update it's title after is has been created

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This commit is contained in:
anschrammh 2023-03-24 14:55:10 +01:00
parent 5d3b5b5285
commit 86be55b404
2 changed files with 60 additions and 5 deletions
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51
src/W800_SDK_v1.00.10/app/gfx/common_screen_components.c
View File

@ -1,7 +1,37 @@
#include "lvgl.h"
/***
* It is needed to have a reference on two header_titles because when
* switching from one screen using a header to an other screen which is also using one
* the header of the new screen will be created BEFORE the header of the previous screen
* is deleted ...
*/
/* A reference to the current and previous header title */
static lv_obj_t *header_title[2] = {NULL, NULL};
/* Pointer to the header_title to use */
lv_obj_t **header_title_p = &header_title[0];
static void cleanup_event_cb(lv_event_t * e)
{
lv_obj_t **header_title_deleted_p = e->user_data;
*header_title_deleted_p = NULL;
LV_LOG_USER("header_title cleanup");
}
void common_screen_header_component(lv_obj_t *parent, const char * title, lv_coord_t height)
{
if(header_title[0] == NULL)
header_title_p = &header_title[0];
else if(header_title[1] == NULL)
header_title_p = &header_title[1];
else
{
LV_LOG_ERROR("no free header_title");
return;
}
lv_obj_t *header = lv_obj_create(parent);
lv_obj_set_style_bg_color(header, lv_color_make(129, 141,181), LV_PART_MAIN);
lv_obj_set_size(header, lv_disp_get_hor_res(NULL), height);
@ -9,9 +39,20 @@ void common_screen_header_component(lv_obj_t *parent, const char * title, lv_coo
lv_obj_set_style_border_width(header, 0, LV_PART_MAIN);
lv_obj_clear_flag(header, LV_OBJ_FLAG_SCROLLABLE);
lv_obj_t *header_title = lv_label_create(header);
lv_label_set_text_static(header_title, title);
lv_obj_set_style_text_color(header_title, lv_color_white(), LV_PART_MAIN);
lv_obj_set_style_text_font(header_title, &lv_font_montserrat_30, LV_PART_MAIN);
lv_obj_set_align(header_title, LV_ALIGN_CENTER);
*header_title_p = lv_label_create(header);
lv_label_set_text_static(*header_title_p, title);
lv_obj_set_style_text_align(*header_title_p, LV_TEXT_ALIGN_CENTER, LV_PART_MAIN);
lv_obj_set_style_text_color(*header_title_p, lv_color_white(), LV_PART_MAIN);
lv_obj_set_style_text_font(*header_title_p, &lv_font_montserrat_30, LV_PART_MAIN);
lv_obj_set_width(*header_title_p, 150);
lv_obj_set_align(*header_title_p, LV_ALIGN_CENTER);
lv_label_set_long_mode(*header_title_p, LV_LABEL_LONG_SCROLL_CIRCULAR);
/* Once the current header_title is destroyed, mark it as NULL to prevent any crashes when trying to change it's title */
lv_obj_add_event_cb(*header_title_p, &(cleanup_event_cb), LV_EVENT_DELETE, header_title_p);
}
void common_screen_header_update_title(const char * title)
{
if(!*header_title_p)return;
lv_label_set_text_static(*header_title_p, title);
}

14
src/W800_SDK_v1.00.10/app/gfx/common_screen_components.h
View File

@ -3,6 +3,20 @@
#include "lvgl.h"
/**
* @brief Adds a screen header with the defined title to the screen passed as parent with the provided height.
*
* @param parent the screen to which the header will be added
* @param title a string used as the header's title
* @param height the height in pixel of the header
*/
void common_screen_header_component(lv_obj_t *parent, const char * title, lv_coord_t height);
/**
* @brief Updates the current title of displayed screen header
*
* @param title a string used as the new header's title
*/
void common_screen_header_update_title(const char * title);
#endif //COMMON_SCREEN_COMPONENTS_H