mirror of
https://github.com/lvgl/lvgl.git
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create spinbox object, derivating lv_ta
This commit is contained in:
AloyseTech
parent
32843f9f91
commit
404c52e3c2
511
lv_objx/lv_spinbox.c
Normal file
511
lv_objx/lv_spinbox.c
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@ -0,0 +1,511 @@
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/**
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* @file lv_templ.c
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*
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*/
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/* TODO Remove these instructions
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* Search an replace: spinbox -> object normal name with lower case (e.g. button, label etc.)
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* templ -> object short name with lower case(e.g. btn, label etc)
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* TEMPL -> object short name with upper case (e.g. BTN, LABEL etc.)
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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_spinbox.h"
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#if USE_LV_SPINBOX != 0
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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_spinbox_design(lv_obj_t * templ, const lv_area_t * mask, lv_design_mode_t mode);
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static lv_res_t lv_spinbox_signal(lv_obj_t * spinbox, lv_signal_t sign, void * param);
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static void lv_spinbox_updatevalue(lv_obj_t * spinbox);
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static int32_t lv_spinbox_double_to_int(lv_obj_t * spinbox, double d);
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static double lv_spinbox_int_to_double(lv_obj_t * spinbox, int32_t i);
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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_design_func_t ancestor_design;
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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 spinbox object
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* @param par pointer to an object, it will be the parent of the new spinbox
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* @param copy pointer to a spinbox object, if not NULL then the new object will be copied from it
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* @return pointer to the created spinbox
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*/
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lv_obj_t * lv_spinbox_create(lv_obj_t * par, const lv_obj_t * copy)
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{
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LV_LOG_TRACE("spinbox create started");
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/*Create the ancestor of spinbox*/
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/*TODO modify it to the ancestor create function */
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lv_obj_t * new_spinbox = lv_ta_create(par, copy);
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lv_mem_assert(new_spinbox);
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if(new_spinbox == NULL) return NULL;
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/*Allocate the spinbox type specific extended data*/
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lv_spinbox_ext_t * ext = lv_obj_allocate_ext_attr(new_spinbox, sizeof(lv_spinbox_ext_t));
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lv_mem_assert(ext);
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if(ext == NULL) return NULL;
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if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_func(new_spinbox);
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if(ancestor_design == NULL) ancestor_design = lv_obj_get_design_func(new_spinbox);
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/*Initialize the allocated 'ext' */
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ext->ta.one_line = 1;
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ext->ta.pwd_mode = 0;
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ext->ta.accapted_chars = "1234567890+-.";
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ext->value = 0.0;
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ext->valueDigit = 0;
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ext->decPointPos = 2;
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ext->digitCount = 5;
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ext->step = 100;
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ext->rangeMax = 99999;
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ext->rangeMin = -99999;
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lv_ta_set_cursor_type(new_spinbox, LV_CURSOR_BLOCK | LV_CURSOR_HIDDEN); //hidden by default
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lv_ta_set_cursor_pos(new_spinbox, 4);
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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_spinbox, lv_spinbox_signal);
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lv_obj_set_design_func(new_spinbox, lv_spinbox_design);
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/*Init the new spinbox spinbox*/
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if(copy == NULL) {
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}
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/*Copy an existing spinbox*/
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else {
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lv_spinbox_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
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/*Refresh the style with new signal function*/
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lv_obj_refresh_style(new_spinbox);
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}
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lv_spinbox_updatevalue(new_spinbox);
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LV_LOG_INFO("spinbox created");
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return new_spinbox;
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}
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void lv_spinbox_step_next(lv_obj_t * spinbox)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
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if((ext->step / 10) < ext->rangeMax && (ext->step / 10) > ext->rangeMin && (ext->step / 10) > 0)
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{
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ext->step /= 10;
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}
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lv_spinbox_updatevalue(spinbox);
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}
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void lv_spinbox_step_previous(lv_obj_t * spinbox)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
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if((ext->step * 10) <= ext->rangeMax && (ext->step * 10) > ext->rangeMin && (ext->step * 10) > 0)
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{
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ext->step *= 10;
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}
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lv_spinbox_updatevalue(spinbox);
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}
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/*======================
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* Add/remove functions
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*=====================*/
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/*
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* New object specific "add" or "remove" functions come here
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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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* New object specific "set" functions come here
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*/
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void lv_spinbox_set_double(const lv_obj_t * spinbox, double d)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
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if(ext == NULL)
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return;
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}
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void lv_spinbox_set_int(const lv_obj_t * spinbox, int32_t i)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
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if(ext == NULL)
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return;
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if(i > ext->rangeMax)
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i = ext->rangeMax;
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if(i < ext->rangeMin)
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i = ext->rangeMin;
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ext->valueDigit = i;
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}
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void lv_spinbox_set_digit_format(const lv_obj_t * spinbox, uint8_t digit_count, uint8_t separator_position)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
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if(ext == NULL)
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return;
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if(digit_count > LV_SPINBOX_MAX_DIGIT_COUNT)
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digit_count = LV_SPINBOX_MAX_DIGIT_COUNT;
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if(separator_position < LV_SPINBOX_MAX_DIGIT_COUNT)
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separator_position = LV_SPINBOX_MAX_DIGIT_COUNT;
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ext->digitCount = digit_count;
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ext->decPointPos = separator_position;
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lv_spinbox_updatevalue(spinbox);
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}
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void lv_spinbox_set_range_int(const lv_obj_t * spinbox, int32_t rangeMin, int32_t rangeMax)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
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if(ext == NULL)
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return;
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ext->rangeMax = rangeMax;
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ext->rangeMin = rangeMin;
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if(ext->valueDigit > ext->rangeMax)
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{
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ext->valueDigit = ext->rangeMax;
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lv_obj_invalidate(spinbox);
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}
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if(ext->valueDigit < ext->rangeMin)
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{
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ext->valueDigit = ext->rangeMin;
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lv_obj_invalidate(spinbox);
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}
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}
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void lv_spinbox_set_range_double(const lv_obj_t * spinbox, double rangeMin, double rangeMax)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
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if(ext == NULL)
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return;
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double rMinDouble = lv_spinbox_double_to_int(spinbox, rangeMin);
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double rMaxDouble = lv_spinbox_double_to_int(spinbox, rangeMax);
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lv_spinbox_set_range_int(spinbox, rMinDouble, rMaxDouble);
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}
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/**
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* Set a style of a spinbox.
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* @param templ pointer to spinbox 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_spinbox_set_style(lv_obj_t * spinbox, lv_spinbox_style_t type, lv_style_t * style)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
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switch(type) {
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case LV_SPINBOX_STYLE_BG:
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lv_page_set_style(spinbox, LV_PAGE_STYLE_BG, style);
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break;
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case LV_SPINBOX_STYLE_SB:
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lv_page_set_style(spinbox, LV_PAGE_STYLE_SB, style);
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break;
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case LV_SPINBOX_STYLE_CURSOR:
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ext->ta.cursor.style = style;
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lv_obj_refresh_ext_size(lv_page_get_scrl(spinbox)); /*Refresh ext. size because of cursor drawing*/
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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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* New object specific "get" functions come here
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*/
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/**
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* Get style of a spinbox.
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* @param templ pointer to spinbox object
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* @param type which style should be get
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* @return style pointer to the style
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*/
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lv_style_t * lv_spinbox_get_style(const lv_obj_t * templ, lv_spinbox_style_t type)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(templ);
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switch(type) {
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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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* Other functions
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*====================*/
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/*
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* New object specific "other" functions come here
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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 spinboxs
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* @param templ 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_spinbox_design(lv_obj_t * templ, 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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}
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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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}
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return true;
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}
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/**
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* Signal function of the spinbox
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* @param templ pointer to a spinbox 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_spinbox_signal(lv_obj_t * spinbox, lv_signal_t sign, void * param)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
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lv_res_t res;
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/* Include the ancient signal function */
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if(sign != LV_SIGNAL_CONTROLL)
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{
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res = ancestor_signal(spinbox, sign, param);
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if(res != LV_RES_OK) return res;
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}
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if(sign == LV_SIGNAL_CLEANUP) {
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/*Nothing to cleanup. (No dynamically allocated memory in 'ext')*/
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} else if(sign == LV_SIGNAL_GET_TYPE)
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{
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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++)
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{ /*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_spinbox";
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}else if(sign == LV_SIGNAL_CONTROLL)
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{
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uint32_t c = *((uint32_t *)param); /*uint32_t because can be UTF-8*/
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if(c == LV_GROUP_KEY_RIGHT)
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{
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if(ext->valueDigit - ext->step >= ext->rangeMin)
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{
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//Special mode when zero crossing
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if((ext->valueDigit - ext->step) < 0 && ext->valueDigit > 0)
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{
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ext->valueDigit = -ext->valueDigit;
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}//end special mode
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ext->valueDigit -= ext->step;
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}
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lv_spinbox_updatevalue(spinbox);
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lv_label_set_text(ext->ta.label, (char*)ext->digits);
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}
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else if(c == LV_GROUP_KEY_LEFT)
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{
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if(ext->valueDigit + ext->step <= ext->rangeMax)
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{
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//Special mode when zero crossing
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if((ext->valueDigit + ext->step) > 0 && ext->valueDigit < 0)
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{
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ext->valueDigit = -ext->valueDigit;
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}//end special mode
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ext->valueDigit += ext->step;
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}
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lv_spinbox_updatevalue(spinbox);
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lv_label_set_text(ext->ta.label, (char*)ext->digits);
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}
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else if(c == LV_GROUP_KEY_UP)
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{
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lv_ta_cursor_up(spinbox);
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}
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else if(c == LV_GROUP_KEY_DOWN)
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{
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lv_ta_cursor_down(spinbox);
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}
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else
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{
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if(c == '\n')
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{
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int p = lv_ta_get_cursor_pos(spinbox);
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if(p == ext->digitCount + 1)
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{
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for(int i = 0; i < ext->digitCount; i++)
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lv_spinbox_step_previous(spinbox);
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} else
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{
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lv_spinbox_step_next(spinbox);
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}
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lv_spinbox_updatevalue(spinbox);
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lv_label_set_text(ext->ta.label, (char*)ext->digits);
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}
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else
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{
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lv_ta_add_char(spinbox, c);
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}
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}
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}
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return res;
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}
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static void lv_spinbox_updatevalue(lv_obj_t * spinbox)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
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int32_t v = ext->valueDigit;
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int32_t intDigits, decDigits;
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uint8_t dc = ext->digitCount;
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intDigits = (ext->decPointPos==0)?ext->digitCount:ext->decPointPos;
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decDigits = ext->digitCount - intDigits;
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ext->digits[0] = v>=0?'+':'-';
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int i = 0;
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uint8_t digits[16];
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if(v < 0)
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v = -v;
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for(i = 0; i < dc; i++)
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{
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digits[i] = v%10;
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v = v/10;
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}
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int k;
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for(k = 0; k < intDigits; k++)
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{
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ext->digits[1 + k] = '0' + digits[--i];
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}
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ext->digits[1 + intDigits] = '.';
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int d;
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for(d = 0; d < decDigits; d++)
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{
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ext->digits[1 + intDigits + 1 + d] = '0' + digits[--i];
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}
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ext->digits[1 + intDigits + 1 + decDigits] = '\0';
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lv_label_set_text(ext->ta.label, (char*)ext->digits);
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int32_t step = ext->step;
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uint8_t cPos = ext->digitCount;
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while(step >= 10)
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{
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step /= 10;
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cPos--;
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}
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if(cPos > intDigits)
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{
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cPos ++;
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}
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lv_ta_set_cursor_pos(spinbox, cPos);
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}
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static double lv_spinbox_int_to_double(lv_obj_t * spinbox, int32_t i)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
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/*
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if(i > ext->rangeMax)
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i = ext->rangeMax;
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if(i < ext->rangeMin)
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i = ext->rangeMin;
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*/
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||||
|
||||
return (double)( i / (10 * (ext->digitCount - ext->decPointPos)));
|
||||
}
|
||||
|
||||
static int32_t lv_spinbox_double_to_int(lv_obj_t * spinbox, double d)
|
||||
{
|
||||
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
|
||||
|
||||
int32_t i = (int32_t)(d * (10 * (ext->digitCount - ext->decPointPos)));
|
||||
|
||||
/*
|
||||
if(i > ext->rangeMax)
|
||||
i = ext->rangeMax;
|
||||
if(i < ext->rangeMin)
|
||||
i = ext->rangeMin;
|
||||
*/
|
||||
|
||||
return i;
|
||||
}
|
||||
|
||||
#endif
|
||||
139
lv_objx/lv_spinbox.h
Normal file
139
lv_objx/lv_spinbox.h
Normal file
@ -0,0 +1,139 @@
|
||||
/**
|
||||
* @file lv_templ.h
|
||||
*
|
||||
*/
|
||||
|
||||
|
||||
/* TODO Remove these instructions
|
||||
* Search an replace: template -> object normal name with lower case (e.g. button, label etc.)
|
||||
* templ -> object short name with lower case(e.g. btn, label etc)
|
||||
* TEMPL -> object short name with upper case (e.g. BTN, LABEL etc.)
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef LV_SPINBOX_H
|
||||
#define LV_SPINBOX_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*********************
|
||||
* INCLUDES
|
||||
*********************/
|
||||
#ifdef LV_CONF_INCLUDE_SIMPLE
|
||||
#include "lv_conf.h"
|
||||
#else
|
||||
#include "../../lv_conf.h"
|
||||
#endif
|
||||
|
||||
#if USE_LV_SPINBOX != 0
|
||||
|
||||
#include "../lv_core/lv_obj.h"
|
||||
#include "../lv_objx/lv_ta.h"
|
||||
|
||||
/*********************
|
||||
* DEFINES
|
||||
*********************/
|
||||
#define LV_SPINBOX_MAX_DIGIT_COUNT 16
|
||||
|
||||
/**********************
|
||||
* TYPEDEFS
|
||||
**********************/
|
||||
/*Data of template*/
|
||||
typedef struct {
|
||||
lv_ta_ext_t ta; /*Ext. of ancestor*/
|
||||
/*New data for this type */
|
||||
double value;
|
||||
int32_t valueDigit;
|
||||
int32_t rangeMax;
|
||||
int32_t rangeMin;
|
||||
int32_t step;
|
||||
uint8_t digitCount:4;
|
||||
uint8_t decPointPos:4; //if 0, there is no separator and the number is an integer
|
||||
uint8_t digits[1+1+16]; //1 sign, 1 point, 16 num digits
|
||||
|
||||
} lv_spinbox_ext_t;
|
||||
|
||||
|
||||
/*Styles*/
|
||||
enum {
|
||||
LV_SPINBOX_STYLE_BG,
|
||||
LV_SPINBOX_STYLE_SB,
|
||||
LV_SPINBOX_STYLE_CURSOR,
|
||||
};
|
||||
typedef uint8_t lv_spinbox_style_t;
|
||||
|
||||
|
||||
/**********************
|
||||
* GLOBAL PROTOTYPES
|
||||
**********************/
|
||||
|
||||
/**
|
||||
* Create a template objects
|
||||
* @param par pointer to an object, it will be the parent of the new template
|
||||
* @param copy pointer to a template object, if not NULL then the new object will be copied from it
|
||||
* @return pointer to the created template
|
||||
*/
|
||||
lv_obj_t * lv_spinbox_create(lv_obj_t * par, const lv_obj_t * copy);
|
||||
|
||||
void lv_spinbox_step_next(lv_obj_t * spinbox);
|
||||
void lv_spinbox_step_previous(lv_obj_t * spinbox);
|
||||
|
||||
|
||||
/*======================
|
||||
* Add/remove functions
|
||||
*=====================*/
|
||||
|
||||
|
||||
/*=====================
|
||||
* Setter functions
|
||||
*====================*/
|
||||
|
||||
/**
|
||||
* Set a style of a template.
|
||||
* @param templ pointer to template object
|
||||
* @param type which style should be set
|
||||
* @param style pointer to a style
|
||||
*/
|
||||
void lv_spinbox_set_style(lv_obj_t * templ, lv_spinbox_style_t type, lv_style_t *style);
|
||||
|
||||
|
||||
void lv_spinbox_set_double(const lv_obj_t * spinbox, double d);
|
||||
void lv_spinbox_set_int(const lv_obj_t * spinbox, int32_t i);
|
||||
void lv_spinbox_set_digit_format(const lv_obj_t * spinbox, uint8_t digit_count, uint8_t separator_position);
|
||||
void lv_spinbox_set_range_int(const lv_obj_t * spinbox, int32_t rangeMin, int32_t rangeMax);
|
||||
void lv_spinbox_set_range_double(const lv_obj_t * spinbox, double rangeMin, double rangeMax);
|
||||
|
||||
|
||||
/*=====================
|
||||
* Getter functions
|
||||
*====================*/
|
||||
|
||||
/**
|
||||
* Get style of a template.
|
||||
* @param templ pointer to template object
|
||||
* @param type which style should be get
|
||||
* @return style pointer to the style
|
||||
*/
|
||||
lv_style_t * lv_spinbox_get_style(const lv_obj_t * templ, lv_spinbox_style_t type);
|
||||
|
||||
|
||||
double lv_spinbox_get_double(const lv_obj_t * spinbox);
|
||||
int32_t lv_spinbox_get_int(const lv_obj_t * spinbox);
|
||||
|
||||
/*=====================
|
||||
* Other functions
|
||||
*====================*/
|
||||
|
||||
/**********************
|
||||
* MACROS
|
||||
**********************/
|
||||
|
||||
#endif /*USE_LV_TEMPL*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
} /* extern "C" */
|
||||
#endif
|
||||
|
||||
#endif /*LV_SPINBOX_H*/
|
||||
Loading…
x
Reference in New Issue
Block a user