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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.
472 lines
13 KiB
C
472 lines
13 KiB
C
/**
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* @file lv_spinbox.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_spinbox.h"
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#if USE_LV_SPINBOX != 0
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#include "../lv_themes/lv_theme.h"
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#include "../lv_misc/lv_math.h"
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* STATIC PROTOTYPES
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**********************/
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static lv_res_t lv_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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/**********************
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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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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;
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ext->dec_point_pos = 0;
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ext->digit_count = 5;
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ext->digit_padding_left = 0;
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ext->step = 1;
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ext->range_max = 99999;
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ext->range_min = -99999;
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ext->value_changed_cb = NULL;
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lv_ta_set_cursor_type(new_spinbox, LV_CURSOR_BLOCK | LV_CURSOR_HIDDEN); /*hidden 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_spinbox, lv_spinbox_signal);
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lv_obj_set_design_func(new_spinbox, ancestor_design); /*Leave the Text area's design function*/
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/*Init the new spinbox spinbox*/
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if(copy == NULL) {
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/*Set the default styles*/
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lv_theme_t * th = lv_theme_get_current();
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if(th) {
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lv_spinbox_set_style(new_spinbox, LV_SPINBOX_STYLE_BG, th->spinbox.bg);
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lv_spinbox_set_style(new_spinbox, LV_SPINBOX_STYLE_CURSOR, th->spinbox.cursor);
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lv_spinbox_set_style(new_spinbox, LV_SPINBOX_STYLE_SB, th->spinbox.sb);
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}
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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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lv_spinbox_set_value(new_spinbox, copy_ext->value);
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lv_spinbox_set_digit_format(new_spinbox, copy_ext->digit_count, copy_ext->dec_point_pos);
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lv_spinbox_set_range(new_spinbox, copy_ext->range_min, copy_ext->range_max);
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lv_spinbox_set_step(new_spinbox, copy_ext->step);
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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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/*=====================
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* Setter functions
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*====================*/
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/**
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* Set spinbox value
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* @param spinbox pointer to spinbox
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* @param i value to be set
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*/
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void lv_spinbox_set_value(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->range_max)
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i = ext->range_max;
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if(i < ext->range_min)
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i = ext->range_min;
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ext->value = i;
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lv_spinbox_updatevalue(spinbox);
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}
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/**
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* Set spinbox digit format (digit count and decimal format)
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* @param spinbox pointer to spinbox
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* @param digit_count number of digit excluding the decimal separator and the sign
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* @param separator_position number of digit before the decimal point. If 0, decimal point is not shown
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*/
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void lv_spinbox_set_digit_format(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->digit_count = digit_count;
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ext->dec_point_pos = separator_position;
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lv_spinbox_updatevalue(spinbox);
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}
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/**
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* Set spinbox step
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* @param spinbox pointer to spinbox
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* @param step steps on increment/decrement
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*/
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void lv_spinbox_set_step(lv_obj_t * spinbox, uint32_t step)
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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) return;
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ext->step = step;
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}
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/**
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* Set spinbox value range
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* @param spinbox pointer to spinbox
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* @param range_min maximum value, inclusive
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* @param range_max minimum value, inclusive
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*/
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void lv_spinbox_set_range(lv_obj_t * spinbox, int32_t range_min, int32_t range_max)
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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) return;
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ext->range_max = range_max;
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ext->range_min = range_min;
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if(ext->value > ext->range_max) {
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ext->value = ext->range_max;
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lv_obj_invalidate(spinbox);
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}
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if(ext->value < ext->range_min) {
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ext->value = ext->range_min;
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lv_obj_invalidate(spinbox);
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}
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}
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/**
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* Set spinbox callback on calue change
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* @param spinbox pointer to spinbox
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* @param cb Callback function called on value change event
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*/
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void lv_spinbox_set_value_changed_cb(lv_obj_t * spinbox, lv_spinbox_value_changed_cb_t cb)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
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ext->value_changed_cb = cb;
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}
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/**
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* Set spinbox left padding in digits count (added between sign and first digit)
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* @param spinbox pointer to spinbox
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* @param cb Callback function called on value change event
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*/
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void lv_spinbox_set_padding_left(lv_obj_t * spinbox, uint8_t padding)
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{
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lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
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ext->digit_padding_left = padding;
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lv_spinbox_updatevalue(spinbox);
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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 spinbox numeral value (user has to convert to float according to its digit format)
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* @param spinbox pointer to spinbox
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* @return value integer value of the spinbox
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*/
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int32_t lv_spinbox_get_value(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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return ext->value;
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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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* Select next lower digit for edition by dividing the step by 10
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* @param spinbox pointer to 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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int32_t new_step = ext->step / 10;
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if((new_step) > 0) ext->step = new_step;
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else ext->step = 1;
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lv_spinbox_updatevalue(spinbox);
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}
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/**
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* Select next higher digit for edition by multiplying the step by 10
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* @param spinbox pointer to 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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int32_t step_limit;
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step_limit = LV_MATH_MAX(ext->range_max, (ext->range_min < 0 ? (-ext->range_min) : ext->range_min));
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int32_t new_step = ext->step * 10;
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if(new_step <= step_limit) ext->step = new_step;
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lv_spinbox_updatevalue(spinbox);
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}
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/**
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* Increment spinbox value by one step
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* @param spinbox pointer to spinbox
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*/
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void lv_spinbox_increment(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->value + ext->step <= ext->range_max) {
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/*Special mode when zero crossing*/
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if((ext->value + ext->step) > 0 && ext->value < 0) ext->value = -ext->value;
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ext->value += ext->step;
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} else {
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ext->value = ext->range_max;
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}
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if(ext->value_changed_cb != NULL) ext->value_changed_cb(spinbox, ext->value);
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lv_spinbox_updatevalue(spinbox);
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}
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/**
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* Decrement spinbox value by one step
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* @param spinbox pointer to spinbox
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*/
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void lv_spinbox_decrement(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->value - ext->step >= ext->range_min) {
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/*Special mode when zero crossing*/
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if((ext->value - ext->step) < 0 && ext->value > 0) ext->value = -ext->value;
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ext->value -= ext->step;
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} else {
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ext->value = ext->range_min;
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}
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if(ext->value_changed_cb != NULL) ext->value_changed_cb(spinbox, ext->value);
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lv_spinbox_updatevalue(spinbox);
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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/**
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* Signal function of the spinbox
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* @param spinbox 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 = LV_RES_OK;
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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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}
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else if(sign == LV_SIGNAL_CONTROLL) {
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lv_hal_indev_type_t indev_type = lv_indev_get_type(lv_indev_get_act());
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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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if(indev_type == LV_INDEV_TYPE_ENCODER) lv_spinbox_increment(spinbox);
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else lv_spinbox_step_next(spinbox);
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}
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else if(c == LV_GROUP_KEY_LEFT) {
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if(indev_type == LV_INDEV_TYPE_ENCODER) lv_spinbox_decrement(spinbox);
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else lv_spinbox_step_previous(spinbox);
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}
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else if(c == LV_GROUP_KEY_UP) {
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lv_spinbox_increment(spinbox);
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}
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else if(c == LV_GROUP_KEY_DOWN) {
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lv_spinbox_decrement(spinbox);
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}
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else if(c == LV_GROUP_KEY_ENTER) {
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if(ext->step > 1) {
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lv_spinbox_step_next(spinbox);
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} else {
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/*Restart from the MSB*/
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ext->step = 1;
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uint32_t i;
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for(i = 0; i < ext->digit_count; i++) {
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int32_t new_step = ext->step * 10;
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if(new_step >= ext->range_max) break;
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ext->step = new_step;
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}
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lv_spinbox_step_previous(spinbox);
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}
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}
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else {
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lv_ta_add_char(spinbox, c);
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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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char buf[LV_SPINBOX_MAX_DIGIT_COUNT + 8];
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memset(buf, 0, sizeof(buf));
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char * buf_p = buf;
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/*Add the sign*/
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(*buf_p) = ext->value >= 0 ? '+' : '-';
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buf_p++;
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int i;
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/*padding left*/
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for(i = 0; i < ext->digit_padding_left; i++) {
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(*buf_p) = ' ';
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buf_p++;
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}
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char digits[64];
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/*Convert the numbers to string (the sign is already handled so always covert positive number)*/
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lv_math_num_to_str(ext->value < 0 ? -ext->value : ext->value, digits);
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/*Add leading zeros*/
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int lz_cnt = ext->digit_count - (int)strlen(digits);
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if(lz_cnt > 0) {
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for(i = strlen(digits); i >= 0; i--) {
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digits[i + lz_cnt] = digits[i];
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}
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for(i = 0; i < lz_cnt; i++) {
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digits[i] = '0';
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}
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}
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int32_t intDigits;
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intDigits = (ext->dec_point_pos == 0) ? ext->digit_count : ext->dec_point_pos;
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/*Add the decimal part*/
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for(i = 0; i < intDigits && digits[i] != '\0'; i++) {
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(*buf_p) = digits[i];
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buf_p++;
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}
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if(ext->dec_point_pos != 0) {
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/*Insert the decimal point*/
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(*buf_p) = '.';
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buf_p++;
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for(/*Leave i*/ ;i < ext->digit_count && digits[i] != '\0'; i++) {
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(*buf_p) = digits[i];
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buf_p++;
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}
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}
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/*Refresh the text*/
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lv_ta_set_text(spinbox, (char*)buf);
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/*Set the cursor position*/
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int32_t step = ext->step;
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uint8_t cur_pos = ext->digit_count;
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while(step >= 10)
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{
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step /= 10;
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cur_pos--;
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}
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if(cur_pos > intDigits ) cur_pos ++; /*Skip teh decimal point*/
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cur_pos += ext->digit_padding_left;
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lv_ta_set_cursor_pos(spinbox, cur_pos);
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}
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#endif
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