583 lines
21 KiB
C
583 lines
21 KiB
C
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/**
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* @file lv_roller.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_roller.h"
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#if USE_LV_ROLLER != 0
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#include "../lv_draw/lv_draw.h"
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#include "../lv_core/lv_group.h"
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#include "../lv_themes/lv_theme.h"
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/*********************
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* DEFINES
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*********************/
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#if USE_LV_ANIMATION
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# ifndef LV_ROLLER_ANIM_TIME
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# define LV_ROLLER_ANIM_TIME 200 /*ms*/
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# endif
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#else
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# undef LV_ROLLER_ANIM_TIME
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# define LV_ROLLER_ANIM_TIME 0 /*No animation*/
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#endif
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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_roller_design(lv_obj_t * roller, const lv_area_t * mask, lv_design_mode_t mode);
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static lv_res_t lv_roller_scrl_signal(lv_obj_t * roller_scrl, lv_signal_t sign, void * param);
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static lv_res_t lv_roller_signal(lv_obj_t * roller, lv_signal_t sign, void * param);
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static void refr_position(lv_obj_t * roller, bool anim_en);
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static void draw_bg(lv_obj_t * roller, const lv_area_t * mask);
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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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static lv_signal_func_t ancestor_scrl_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 roller object
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* @param par pointer to an object, it will be the parent of the new roller
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* @param copy pointer to a roller object, if not NULL then the new object will be copied from it
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* @return pointer to the created roller
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*/
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lv_obj_t * lv_roller_create(lv_obj_t * par, const lv_obj_t * copy)
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{
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LV_LOG_TRACE("roller create started");
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/*Create the ancestor of roller*/
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lv_obj_t * new_roller = lv_ddlist_create(par, copy);
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lv_mem_assert(new_roller);
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if(new_roller == NULL) return NULL;
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if(ancestor_scrl_signal == NULL) ancestor_scrl_signal = lv_obj_get_signal_func(lv_page_get_scrl(new_roller));
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if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_func(new_roller);
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/*Allocate the roller type specific extended data*/
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lv_roller_ext_t * ext = lv_obj_allocate_ext_attr(new_roller, sizeof(lv_roller_ext_t));
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lv_mem_assert(ext);
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if(ext == NULL) return NULL;
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ext->ddlist.draw_arrow = 0; /*Do not draw arrow by default*/
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/*The signal and design functions are not copied so set them here*/
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lv_obj_set_signal_func(new_roller, lv_roller_signal);
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lv_obj_set_design_func(new_roller, lv_roller_design);
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/*Init the new roller roller*/
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if(copy == NULL) {
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lv_obj_t * scrl = lv_page_get_scrl(new_roller);
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lv_obj_set_drag(scrl, true); /*In ddlist is might be disabled*/
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lv_page_set_rel_action(new_roller, NULL); /*Roller don't uses it (like ddlist)*/
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lv_page_set_scrl_fit(new_roller, true, false); /*Height is specified directly*/
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lv_ddlist_open(new_roller, false);
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lv_ddlist_set_anim_time(new_roller, LV_ROLLER_ANIM_TIME);
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lv_roller_set_visible_row_count(new_roller, 3);
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lv_label_set_align(ext->ddlist.label, LV_LABEL_ALIGN_CENTER);
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lv_obj_set_signal_func(scrl, lv_roller_scrl_signal);
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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_roller_set_style(new_roller, LV_ROLLER_STYLE_BG, th->roller.bg);
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lv_roller_set_style(new_roller, LV_ROLLER_STYLE_SEL, th->roller.sel);
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} else {
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/*Let the ddlist's style*/
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lv_obj_refresh_style(new_roller); /*To set scrollable size automatically*/
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}
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}
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/*Copy an existing roller*/
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else {
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lv_obj_t * scrl = lv_page_get_scrl(new_roller);
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lv_ddlist_open(new_roller, false);
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lv_obj_set_signal_func(scrl, lv_roller_scrl_signal);
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lv_obj_refresh_style(new_roller); /*Refresh the style with new signal function*/
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}
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LV_LOG_INFO("roller created");
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return new_roller;
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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 align of the roller's options (left or center)
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* @param roller - pointer to a roller object
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* @param align - one of lv_label_align_t values (left, right, center)
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*/
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void lv_roller_set_align(lv_obj_t * roller, lv_label_align_t align)
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{
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lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller);
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lv_mem_assert(ext);
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if(ext->ddlist.label == NULL) return; /*Probably the roller is being deleted if the label is NULL.*/
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lv_label_set_align(ext->ddlist.label, align);
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}
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/**
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* Set the selected option
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* @param roller pointer to a roller object
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* @param sel_opt id of the selected option (0 ... number of option - 1);
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* @param anim_en true: set with animation; false set immediately
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*/
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void lv_roller_set_selected(lv_obj_t * roller, uint16_t sel_opt, bool anim_en)
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{
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#if USE_LV_ANIMATION == 0
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anim_en = false;
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#endif
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if(lv_roller_get_selected(roller) == sel_opt) return;
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lv_ddlist_set_selected(roller, sel_opt);
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refr_position(roller, anim_en);
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}
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/**
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* Set the height to show the given number of rows (options)
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* @param roller pointer to a roller object
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* @param row_cnt number of desired visible rows
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*/
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void lv_roller_set_visible_row_count(lv_obj_t * roller, uint8_t row_cnt)
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{
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lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller);
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lv_style_t * style_label = lv_obj_get_style(ext->ddlist.label);
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uint8_t n_line_space = (row_cnt > 1) ? row_cnt - 1 : 1;
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lv_ddlist_set_fix_height(roller, lv_font_get_height(style_label->text.font) * row_cnt + style_label->text.line_space * n_line_space);
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}
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/**
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* Set a style of a roller
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* @param roller pointer to a roller object
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* @param type which style should be set
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* @param style pointer to a style
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*/
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void lv_roller_set_style(lv_obj_t * roller, lv_roller_style_t type, lv_style_t * style)
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{
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switch(type) {
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case LV_ROLLER_STYLE_BG:
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lv_obj_set_style(roller, style);
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break;
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case LV_ROLLER_STYLE_SEL:
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lv_ddlist_set_style(roller, LV_DDLIST_STYLE_SEL, style);
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break;
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}
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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 align attribute. Default alignment after _create is LV_LABEL_ALIGN_CENTER
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* @param roller pointer to a roller object
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* @return LV_LABEL_ALIGN_LEFT, LV_LABEL_ALIGN_RIGHT or LV_LABEL_ALIGN_CENTER
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*/
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lv_label_align_t lv_roller_get_align(const lv_obj_t * roller)
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{
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lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller);
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lv_mem_assert(ext);
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lv_mem_assert(ext->ddlist.label);
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return lv_label_get_align(ext->ddlist.label);
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}
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/**
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* Get the auto width set attribute
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* @param roller pointer to a roller object
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* @return true: auto size enabled; false: manual width settings enabled
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*/
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bool lv_roller_get_hor_fit(const lv_obj_t * roller)
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{
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return lv_page_get_scrl_hor_fit(roller);
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}
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/**
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* Get a style of a roller
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* @param roller pointer to a roller object
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* @param type which style should be get
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* @return style pointer to a style
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* */
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lv_style_t * lv_roller_get_style(const lv_obj_t * roller, lv_roller_style_t type)
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{
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switch(type) {
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case LV_ROLLER_STYLE_BG:
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return lv_obj_get_style(roller);
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case LV_ROLLER_STYLE_SEL:
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return lv_ddlist_get_style(roller, LV_DDLIST_STYLE_SEL);
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default:
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return NULL;
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}
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/*To avoid warning*/
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return NULL;
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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 rollers
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* @param roller 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_roller_design(lv_obj_t * roller, const lv_area_t * mask, lv_design_mode_t mode)
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{
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/*Return false if the object is not covers the mask_p area*/
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if(mode == LV_DESIGN_COVER_CHK) {
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return false;
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}
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/*Draw the object*/
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else if(mode == LV_DESIGN_DRAW_MAIN) {
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draw_bg(roller, mask);
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lv_style_t * style = lv_roller_get_style(roller, LV_ROLLER_STYLE_BG);
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lv_opa_t opa_scale = lv_obj_get_opa_scale(roller);
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const lv_font_t * font = style->text.font;
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lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller);
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lv_coord_t font_h = lv_font_get_height(font);
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lv_area_t rect_area;
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rect_area.y1 = roller->coords.y1 + lv_obj_get_height(roller) / 2 - font_h / 2 - style->text.line_space / 2;
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if((font_h & 0x1) && (style->text.line_space & 0x1)) rect_area.y1 --; /*Compensate the two rounding error*/
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rect_area.y2 = rect_area.y1 + font_h + style->text.line_space - 1;
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rect_area.x1 = roller->coords.x1;
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rect_area.x2 = roller->coords.x2;
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lv_draw_rect(&rect_area, mask, ext->ddlist.sel_style, opa_scale);
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}
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/*Post draw when the children are drawn*/
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else if(mode == LV_DESIGN_DRAW_POST) {
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lv_style_t * style = lv_roller_get_style(roller, LV_ROLLER_STYLE_BG);
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lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller);
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const lv_font_t * font = style->text.font;
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lv_coord_t font_h = lv_font_get_height(font);
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lv_opa_t opa_scale = lv_obj_get_opa_scale(roller);
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/*Redraw the text on the selected area with a different color*/
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lv_area_t rect_area;
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rect_area.y1 = roller->coords.y1 + lv_obj_get_height(roller) / 2 - font_h / 2 - style->text.line_space / 2;
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if((font_h & 0x1) && (style->text.line_space & 0x1)) rect_area.y1 --; /*Compensate the two rounding error*/
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rect_area.y2 = rect_area.y1 + font_h + style->text.line_space - 1;
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rect_area.x1 = roller->coords.x1;
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rect_area.x2 = roller->coords.x2;
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lv_area_t mask_sel;
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bool area_ok;
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area_ok = lv_area_intersect(&mask_sel, mask, &rect_area);
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if(area_ok) {
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lv_style_t * sel_style = lv_roller_get_style(roller, LV_ROLLER_STYLE_SEL);
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lv_style_t new_style;
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lv_txt_flag_t txt_align = LV_TXT_FLAG_NONE;
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{
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lv_label_align_t label_align = lv_label_get_align(ext->ddlist.label);
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if(LV_LABEL_ALIGN_CENTER == label_align) {
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txt_align |= LV_TXT_FLAG_CENTER;
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} else if(LV_LABEL_ALIGN_RIGHT == label_align) {
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txt_align |= LV_TXT_FLAG_RIGHT;
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}
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}
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lv_style_copy(&new_style, style);
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new_style.text.color = sel_style->text.color;
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new_style.text.opa = sel_style->text.opa;
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lv_draw_label(&ext->ddlist.label->coords, &mask_sel, &new_style, opa_scale,
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lv_label_get_text(ext->ddlist.label), txt_align, NULL);
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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 roller
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* @param roller pointer to a roller 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_roller_signal(lv_obj_t * roller, lv_signal_t sign, void * param)
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{
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lv_res_t res = LV_RES_OK;
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/*Don't let the drop down list to handle the control signals. It works differently*/
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if(sign != LV_SIGNAL_CONTROLL && sign != LV_SIGNAL_FOCUS && sign != LV_SIGNAL_DEFOCUS) {
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/* Include the ancient signal function */
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res = ancestor_signal(roller, sign, param);
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if(res != LV_RES_OK) return res;
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}
|
||
|
|
|
||
|
|
lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller);
|
||
|
|
lv_align_t obj_align = LV_ALIGN_IN_LEFT_MID;
|
||
|
|
if(ext->ddlist.label) {
|
||
|
|
lv_label_align_t label_align = lv_label_get_align(ext->ddlist.label);
|
||
|
|
if(LV_LABEL_ALIGN_CENTER == label_align) obj_align = LV_ALIGN_CENTER;
|
||
|
|
else if(LV_LABEL_ALIGN_RIGHT == label_align) obj_align = LV_ALIGN_IN_RIGHT_MID;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(sign == LV_SIGNAL_STYLE_CHG) {
|
||
|
|
lv_obj_set_height(lv_page_get_scrl(roller),
|
||
|
|
lv_obj_get_height(ext->ddlist.label) + lv_obj_get_height(roller));
|
||
|
|
lv_obj_align(ext->ddlist.label, NULL, obj_align, 0, 0);
|
||
|
|
lv_ddlist_set_selected(roller, ext->ddlist.sel_opt_id);
|
||
|
|
refr_position(roller, false);
|
||
|
|
} else if(sign == LV_SIGNAL_CORD_CHG) {
|
||
|
|
|
||
|
|
if(lv_obj_get_width(roller) != lv_area_get_width(param) ||
|
||
|
|
lv_obj_get_height(roller) != lv_area_get_height(param)) {
|
||
|
|
|
||
|
|
lv_ddlist_set_fix_height(roller, lv_obj_get_height(roller));
|
||
|
|
lv_obj_set_height(lv_page_get_scrl(roller),
|
||
|
|
lv_obj_get_height(ext->ddlist.label) + lv_obj_get_height(roller));
|
||
|
|
|
||
|
|
lv_obj_align(ext->ddlist.label, NULL, obj_align, 0, 0);
|
||
|
|
lv_ddlist_set_selected(roller, ext->ddlist.sel_opt_id);
|
||
|
|
refr_position(roller, false);
|
||
|
|
}
|
||
|
|
} else if(sign == LV_SIGNAL_FOCUS) {
|
||
|
|
#if USE_LV_GROUP
|
||
|
|
lv_group_t * g = lv_obj_get_group(roller);
|
||
|
|
bool editing = lv_group_get_editing(g);
|
||
|
|
lv_hal_indev_type_t indev_type = lv_indev_get_type(lv_indev_get_act());
|
||
|
|
|
||
|
|
/*Encoders need special handling*/
|
||
|
|
if(indev_type == LV_INDEV_TYPE_ENCODER) {
|
||
|
|
/*In navigate mode revert the original value*/
|
||
|
|
if(!editing) {
|
||
|
|
if(ext->ddlist.sel_opt_id != ext->ddlist.sel_opt_id_ori) {
|
||
|
|
ext->ddlist.sel_opt_id = ext->ddlist.sel_opt_id_ori;
|
||
|
|
refr_position(roller, true);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/*Save the current state when entered to edit mode*/
|
||
|
|
else {
|
||
|
|
ext->ddlist.sel_opt_id_ori = ext->ddlist.sel_opt_id;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
ext->ddlist.sel_opt_id_ori = ext->ddlist.sel_opt_id; /*Save the current value. Used to revert this state if ENER wont't be pressed*/
|
||
|
|
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
} else if(sign == LV_SIGNAL_DEFOCUS) {
|
||
|
|
#if USE_LV_GROUP
|
||
|
|
/*Revert the original state*/
|
||
|
|
if(ext->ddlist.sel_opt_id != ext->ddlist.sel_opt_id_ori) {
|
||
|
|
ext->ddlist.sel_opt_id = ext->ddlist.sel_opt_id_ori;
|
||
|
|
refr_position(roller, true);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
} else if(sign == LV_SIGNAL_CONTROLL) {
|
||
|
|
char c = *((char *)param);
|
||
|
|
if(c == LV_GROUP_KEY_RIGHT || c == LV_GROUP_KEY_DOWN) {
|
||
|
|
if(ext->ddlist.sel_opt_id + 1 < ext->ddlist.option_cnt) {
|
||
|
|
lv_roller_set_selected(roller, ext->ddlist.sel_opt_id + 1, true);
|
||
|
|
}
|
||
|
|
} else if(c == LV_GROUP_KEY_LEFT || c == LV_GROUP_KEY_UP) {
|
||
|
|
if(ext->ddlist.sel_opt_id > 0) {
|
||
|
|
lv_roller_set_selected(roller, ext->ddlist.sel_opt_id - 1, true);
|
||
|
|
}
|
||
|
|
} else if(c == LV_GROUP_KEY_ENTER) {
|
||
|
|
ext->ddlist.sel_opt_id_ori = ext->ddlist.sel_opt_id; /*Set the entered value as default*/
|
||
|
|
if(ext->ddlist.action) ext->ddlist.action(roller);
|
||
|
|
|
||
|
|
#if USE_LV_GROUP
|
||
|
|
lv_group_t * g = lv_obj_get_group(roller);
|
||
|
|
bool editing = lv_group_get_editing(g);
|
||
|
|
if(editing) lv_group_set_editing(g, false); /*In edit mode go to navigate mode if an option is selected*/
|
||
|
|
#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_roller";
|
||
|
|
}
|
||
|
|
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Signal function of the scrollable part of the roller.
|
||
|
|
* @param roller_scrl ointer to the scrollable part of roller (page)
|
||
|
|
* @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_roller_scrl_signal(lv_obj_t * roller_scrl, lv_signal_t sign, void * param)
|
||
|
|
{
|
||
|
|
lv_res_t res;
|
||
|
|
|
||
|
|
/* Include the ancient signal function */
|
||
|
|
res = ancestor_scrl_signal(roller_scrl, sign, param);
|
||
|
|
if(res != LV_RES_OK) return res;
|
||
|
|
|
||
|
|
lv_indev_t * indev = lv_indev_get_act();
|
||
|
|
int32_t id = -1;
|
||
|
|
lv_obj_t * roller = lv_obj_get_parent(roller_scrl);
|
||
|
|
lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller);
|
||
|
|
|
||
|
|
if(ext->ddlist.label == NULL) return LV_RES_INV; /*On delete the ddlist signal deletes the label so nothing left to do here*/
|
||
|
|
|
||
|
|
lv_style_t * style_label = lv_obj_get_style(ext->ddlist.label);
|
||
|
|
const lv_font_t * font = style_label->text.font;
|
||
|
|
lv_coord_t font_h = lv_font_get_height(font);
|
||
|
|
|
||
|
|
if(sign == LV_SIGNAL_DRAG_END) {
|
||
|
|
/*If dragged then align the list to there be an element in the middle*/
|
||
|
|
lv_coord_t label_y1 = ext->ddlist.label->coords.y1 - roller->coords.y1;
|
||
|
|
lv_coord_t label_unit = font_h + style_label->text.line_space;
|
||
|
|
lv_coord_t mid = (roller->coords.y2 - roller->coords.y1) / 2;
|
||
|
|
id = (mid - label_y1 + style_label->text.line_space / 2) / label_unit;
|
||
|
|
if(id < 0) id = 0;
|
||
|
|
if(id >= ext->ddlist.option_cnt) id = ext->ddlist.option_cnt - 1;
|
||
|
|
ext->ddlist.sel_opt_id = id;
|
||
|
|
if(ext->ddlist.action) ext->ddlist.action(roller);
|
||
|
|
} else if(sign == LV_SIGNAL_RELEASED) {
|
||
|
|
/*If picked an option by clicking then set it*/
|
||
|
|
if(!lv_indev_is_dragging(indev)) {
|
||
|
|
lv_point_t p;
|
||
|
|
lv_indev_get_point(indev, &p);
|
||
|
|
p.y = p.y - ext->ddlist.label->coords.y1;
|
||
|
|
id = p.y / (font_h + style_label->text.line_space);
|
||
|
|
if(id < 0) id = 0;
|
||
|
|
if(id >= ext->ddlist.option_cnt) id = ext->ddlist.option_cnt - 1;
|
||
|
|
ext->ddlist.sel_opt_id = id;
|
||
|
|
if(ext->ddlist.action) ext->ddlist.action(roller);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*Position the scrollable according to the new selected option*/
|
||
|
|
if(id != -1) {
|
||
|
|
refr_position(roller, true);
|
||
|
|
}
|
||
|
|
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Draw a rectangle which has gradient on its top and bottom
|
||
|
|
* @param roller pointer to a roller object
|
||
|
|
* @param mask pointer to the current mask (from the design function)
|
||
|
|
*/
|
||
|
|
static void draw_bg(lv_obj_t * roller, const lv_area_t * mask)
|
||
|
|
{
|
||
|
|
lv_style_t * style = lv_roller_get_style(roller, LV_ROLLER_STYLE_BG);
|
||
|
|
lv_area_t half_mask;
|
||
|
|
lv_area_t half_roller;
|
||
|
|
lv_coord_t h = lv_obj_get_height(roller);
|
||
|
|
bool union_ok;
|
||
|
|
lv_area_copy(&half_roller, &roller->coords);
|
||
|
|
|
||
|
|
half_roller.x1 -= roller->ext_size; /*Add ext size too (e.g. because of shadow draw) */
|
||
|
|
half_roller.x2 += roller->ext_size;
|
||
|
|
half_roller.y1 -= roller->ext_size;
|
||
|
|
half_roller.y2 = roller->coords.y1 + h / 2;
|
||
|
|
|
||
|
|
union_ok = lv_area_intersect(&half_mask, &half_roller, mask);
|
||
|
|
|
||
|
|
half_roller.x1 += roller->ext_size; /*Revert ext. size adding*/
|
||
|
|
half_roller.x2 -= roller->ext_size;
|
||
|
|
half_roller.y1 += roller->ext_size;
|
||
|
|
half_roller.y2 += style->body.radius;
|
||
|
|
|
||
|
|
if(union_ok) {
|
||
|
|
lv_draw_rect(&half_roller, &half_mask, style, lv_obj_get_opa_scale(roller));
|
||
|
|
}
|
||
|
|
|
||
|
|
half_roller.x1 -= roller->ext_size; /*Add ext size too (e.g. because of shadow draw) */
|
||
|
|
half_roller.x2 += roller->ext_size;
|
||
|
|
half_roller.y2 = roller->coords.y2 + roller->ext_size;
|
||
|
|
half_roller.y1 = roller->coords.y1 + h / 2;
|
||
|
|
if((h & 0x1) == 0) half_roller.y1++; /*With even height the pixels in the middle would be drawn twice*/
|
||
|
|
|
||
|
|
union_ok = lv_area_intersect(&half_mask, &half_roller, mask);
|
||
|
|
|
||
|
|
half_roller.x1 += roller->ext_size; /*Revert ext. size adding*/
|
||
|
|
half_roller.x2 -= roller->ext_size;
|
||
|
|
half_roller.y2 -= roller->ext_size;
|
||
|
|
half_roller.y1 -= style->body.radius;
|
||
|
|
|
||
|
|
if(union_ok) {
|
||
|
|
lv_color_t main_tmp = style->body.main_color;
|
||
|
|
lv_color_t grad_tmp = style->body.grad_color;
|
||
|
|
|
||
|
|
style->body.main_color = grad_tmp;
|
||
|
|
style->body.grad_color = main_tmp;
|
||
|
|
lv_draw_rect(&half_roller, &half_mask, style, lv_obj_get_opa_scale(roller));
|
||
|
|
style->body.main_color = main_tmp;
|
||
|
|
style->body.grad_color = grad_tmp;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Refresh the position of the roller. It uses the id stored in: ext->ddlist.selected_option_id
|
||
|
|
* @param roller pointer to a roller object
|
||
|
|
* @param anim_en true: refresh with animation; false: without animation
|
||
|
|
*/
|
||
|
|
static void refr_position(lv_obj_t * roller, bool anim_en)
|
||
|
|
{
|
||
|
|
#if USE_LV_ANIMATION == 0
|
||
|
|
anim_en = false;
|
||
|
|
#endif
|
||
|
|
lv_obj_t * roller_scrl = lv_page_get_scrl(roller);
|
||
|
|
lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller);
|
||
|
|
lv_style_t * style_label = lv_obj_get_style(ext->ddlist.label);
|
||
|
|
const lv_font_t * font = style_label->text.font;
|
||
|
|
lv_coord_t font_h = lv_font_get_height(font);
|
||
|
|
lv_coord_t h = lv_obj_get_height(roller);
|
||
|
|
int32_t id = ext->ddlist.sel_opt_id;
|
||
|
|
lv_coord_t line_y1 = id * (font_h + style_label->text.line_space) + ext->ddlist.label->coords.y1 - roller_scrl->coords.y1;
|
||
|
|
lv_coord_t new_y = - line_y1 + (h - font_h) / 2;
|
||
|
|
|
||
|
|
if(ext->ddlist.anim_time == 0 || anim_en == false) {
|
||
|
|
lv_obj_set_y(roller_scrl, new_y);
|
||
|
|
} else {
|
||
|
|
#if USE_LV_ANIMATION
|
||
|
|
lv_anim_t a;
|
||
|
|
a.var = roller_scrl;
|
||
|
|
a.start = lv_obj_get_y(roller_scrl);
|
||
|
|
a.end = new_y;
|
||
|
|
a.fp = (lv_anim_fp_t)lv_obj_set_y;
|
||
|
|
a.path = lv_anim_path_linear;
|
||
|
|
a.end_cb = NULL;
|
||
|
|
a.act_time = 0;
|
||
|
|
a.time = ext->ddlist.anim_time;
|
||
|
|
a.playback = 0;
|
||
|
|
a.playback_pause = 0;
|
||
|
|
a.repeat = 0;
|
||
|
|
a.repeat_pause = 0;
|
||
|
|
lv_anim_create(&a);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|