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mirror of https://github.com/lvgl/lvgl.git synced 2025-01-28 07:03:00 +08:00

lv_pb: slider function added

This commit is contained in:
Kiss-Vamosi Gabor 2017-02-03 12:48:22 +01:00
parent a97d4b6af5
commit 7f79910092
2 changed files with 181 additions and 32 deletions

View File

@ -20,6 +20,8 @@
*********************/
#define LV_PB_TXT_MAX_LENGTH 64
#define LV_PB_DEF_FORMAT "%d %%"
#define LV_PB_DEF_WIDTH (120 * LV_DOWNSCALE)
#define LV_PB_DEF_HEIGHT (40 * LV_DOWNSCALE)
/**********************
* TYPEDEFS
@ -35,6 +37,7 @@ static void lv_pbs_init(void);
* STATIC VARIABLES
**********************/
static lv_pbs_t lv_pbs_def;
static lv_pbs_t lv_pbs_slider;
static lv_design_f_t ancestor_design_f;
/**********************
@ -67,6 +70,8 @@ lv_obj_t * lv_pb_create(lv_obj_t * par, lv_obj_t * copy)
ext->min_value = 0;
ext->max_value = 100;
ext->act_value = 0;
ext->tmp_value = 0;
ext->set_in_prog = 0;
ext->format_str = NULL;
ext->label = NULL;
@ -85,6 +90,7 @@ lv_obj_t * lv_pb_create(lv_obj_t * par, lv_obj_t * copy)
ext->label = lv_label_create(new_pb, NULL);
lv_rect_set_layout(new_pb, LV_RECT_LAYOUT_CENTER);
lv_obj_set_size(new_pb, LV_PB_DEF_WIDTH, LV_PB_DEF_HEIGHT);
lv_obj_set_style(new_pb, lv_pbs_get(LV_PBS_DEF, NULL));
lv_pb_set_value(new_pb, ext->act_value);
@ -124,6 +130,8 @@ bool lv_pb_signal(lv_obj_t * pb, lv_signal_t sign, void * param)
if(valid != false) {
lv_pb_ext_t * ext = lv_obj_get_ext(pb);
lv_pbs_t * style = lv_obj_get_style(pb);
point_t p;
char buf[LV_PB_TXT_MAX_LENGTH];
switch(sign) {
case LV_SIGNAL_CORD_CHG:
@ -136,6 +144,42 @@ bool lv_pb_signal(lv_obj_t * pb, lv_signal_t sign, void * param)
case LV_SIGNAL_STYLE_CHG:
lv_obj_set_style(ext->label, &style->label);
lv_pb_set_value(pb, lv_pb_get_value(pb));
break;
case LV_SIGNAL_PRESSING:
ext->set_in_prog = 1;
lv_dispi_get_point(param, &p);
if(lv_obj_get_width(pb) > lv_obj_get_height(pb)) {
p.x -= pb->cords.x1 + style->btn_size / 2;
ext->tmp_value = (int32_t) ((int32_t) p.x * (ext->max_value - ext->min_value + 1)) /
(lv_obj_get_width(pb) - style->btn_size);
} else {
p.y -= pb->cords.y1 + style->btn_size / 2;
ext->tmp_value = (int32_t) ((int32_t) p.y * (ext->max_value - ext->min_value + 1)) /
(lv_obj_get_height(pb) - style->btn_size);
/*Invert the value: greater y means smaller value
* because it on a lower position on the screen*/
ext->tmp_value = ext->max_value - ext->tmp_value;
}
ext->tmp_value = ext->tmp_value > ext->max_value ? ext->max_value : ext->tmp_value;
ext->tmp_value = ext->tmp_value < ext->min_value ? ext->min_value : ext->tmp_value;
sprintf(buf, ext->format_str, ext->tmp_value);
lv_label_set_text(ext->label, buf);
lv_obj_inv(pb);
break;
case LV_SIGNAL_PRESS_LOST:
ext->set_in_prog = 0;
ext->tmp_value = ext->act_value;
sprintf(buf, ext->format_str, ext->act_value);
lv_label_set_text(ext->label, buf);
lv_obj_inv(pb);
break;
case LV_SIGNAL_RELEASED:
lv_pb_set_value(pb, ext->tmp_value);
ext->set_in_prog = 0;
break;
default:
break;
@ -154,11 +198,13 @@ bool lv_pb_signal(lv_obj_t * pb, lv_signal_t sign, void * param)
* @param pb pointer to a progress bar object
* @param value new value
*/
void lv_pb_set_value(lv_obj_t * pb, uint16_t value)
void lv_pb_set_value(lv_obj_t * pb, int16_t value)
{
lv_pb_ext_t * ext = lv_obj_get_ext(pb);
ext->act_value = value > ext->max_value ? ext->max_value : value;
ext->act_value = ext->act_value < ext->min_value ? ext->min_value : ext->act_value;
ext->tmp_value = ext->act_value;
char buf[LV_PB_TXT_MAX_LENGTH];
sprintf(buf, ext->format_str, ext->act_value);
lv_label_set_text(ext->label, buf);
@ -172,7 +218,7 @@ void lv_pb_set_value(lv_obj_t * pb, uint16_t value)
* @param min minimum value
* @param max maximum value
*/
void lv_pb_set_min_max_value(lv_obj_t * pb, uint16_t min, uint16_t max)
void lv_pb_set_min_max_value(lv_obj_t * pb, int16_t min, int16_t max)
{
lv_pb_ext_t * ext = lv_obj_get_ext(pb);
ext->max_value = max;
@ -207,7 +253,7 @@ void lv_pb_set_format_str(lv_obj_t * pb, const char * format)
* @param pb pointer to a progress bar object
* @return the value of the progress bar
*/
uint16_t lv_pb_get_value(lv_obj_t * pb)
int16_t lv_pb_get_value(lv_obj_t * pb)
{
lv_pb_ext_t * ext = lv_obj_get_ext(pb);
return ext->act_value;
@ -235,6 +281,9 @@ lv_pbs_t * lv_pbs_get(lv_pbs_builtin_t style, lv_pbs_t * copy)
case LV_PBS_DEF:
style_p = &lv_pbs_def;
break;
case LV_PBS_SLIDER:
style_p = &lv_pbs_slider;
break;
default:
style_p = &lv_pbs_def;
}
@ -273,47 +322,138 @@ static bool lv_pb_design(lv_obj_t * pb, const area_t * mask, lv_design_mode_t mo
ancestor_design_f(pb, mask, mode);
lv_pb_ext_t * ext = lv_obj_get_ext(pb);
lv_pbs_t * style = lv_obj_get_style(pb);
area_t bar_area;
area_t tmp_area;
uint32_t tmp;
area_cpy(&bar_area, &pb->cords);
area_cpy(&tmp_area, &pb->cords);
cord_t w = lv_obj_get_width(pb);
cord_t h = lv_obj_get_height(pb);
if(w >= h) {
tmp = (uint32_t)ext->act_value * w;
tmp = (uint32_t) tmp / (ext->max_value - ext->min_value);
bar_area.x2 = bar_area.x1 + (cord_t) tmp;
tmp = (int32_t)ext->act_value * (w - style->btn_size);
tmp = (int32_t) tmp / (ext->max_value - ext->min_value);
bar_area.x2 = bar_area.x1 + style->btn_size + (cord_t) tmp;
tmp = (int32_t)ext->tmp_value * (w - style->btn_size);
tmp = (int32_t) tmp / (ext->max_value - ext->min_value);
tmp_area.x2 = tmp_area.x1 + style->btn_size + (cord_t) tmp;
} else {
tmp = (uint32_t)ext->act_value * h;
tmp = (uint32_t) tmp / (ext->max_value - ext->min_value);
bar_area.y1 = bar_area.y2 - (cord_t) tmp;
tmp = (int32_t)ext->act_value * (h - style->btn_size);
tmp = (int32_t) tmp / (ext->max_value - ext->min_value);
bar_area.y1 = bar_area.y2 - style->btn_size - (cord_t) tmp;
tmp = (int32_t)ext->tmp_value * (h - style->btn_size);
tmp = (int32_t) tmp / (ext->max_value - ext->min_value);
tmp_area.y1 = tmp_area.y2 - style->btn_size - (cord_t) tmp;
}
lv_pbs_t * style_p = lv_obj_get_style(pb);
lv_draw_rect(&bar_area, mask, &style_p->bar, OPA_COVER);
/*Draw the main bar*/
opa_t opa = lv_obj_get_opa(pb);
lv_draw_rect(&bar_area, mask, &style->bar, opa);
/*Draw a "phantom" bar when setting by a display input*/
if(ext->set_in_prog != 0) {
lv_rects_t tmp_rects;
memcpy(&tmp_rects, &style->bar, sizeof(lv_rects_t));
tmp_rects.objs.color = style->tmp_bar_mcolor;
tmp_rects.gcolor = style->tmp_bar_gcolor;
lv_draw_rect(&tmp_area, mask, &tmp_rects, (opa * style->tmp_bar_opa) / 100);
}
/*Draw a button if its size is not 0*/
if(style->btn_size != 0) {
lv_rects_t tmp_rects;
memcpy(&tmp_rects, &style->btn, sizeof(lv_rects_t));
if(w >= h) {
tmp_area.x1 = tmp_area.x2 - style->btn_size ;
if(tmp_area.x1 < pb->cords.x1) {
tmp_area.x1 = pb->cords.x1;
tmp_area.x2 = tmp_area.x1 + style->btn_size;
}
if(tmp_area.x2 > pb->cords.x2) {
tmp_area.x2 = pb->cords.x2;
tmp_area.x1 = tmp_area.x2 - style->btn_size;
}
} else {
tmp_area.y2 = tmp_area.y1 + style->btn_size ;
if(tmp_area.y1 < pb->cords.y1) {
tmp_area.y1 = pb->cords.y1;
tmp_area.y2 = tmp_area.y1 + style->btn_size;
}
if(tmp_area.y2 > pb->cords.y2) {
tmp_area.y2 = pb->cords.y2;
tmp_area.y1 = tmp_area.y2 - style->btn_size;
}
}
lv_draw_rect(&tmp_area, mask, &tmp_rects, opa );
}
}
return true;
}
/**
* Initialize the progess bar styles
* Set a new temporal (ghost) value on the progress bar
* @param pb pointer to a progress bar object
* @param value new value
*/
void lv_pb_set_tmp_value(lv_obj_t * pb, int16_t value)
{
lv_pb_ext_t * ext = lv_obj_get_ext(pb);
ext->act_value = value > ext->max_value ? ext->max_value : value;
char buf[LV_PB_TXT_MAX_LENGTH];
sprintf(buf, ext->format_str, ext->act_value);
lv_label_set_text(ext->label, buf);
lv_obj_inv(pb);
}
/**
* Initialize the progress bar styles
*/
static void lv_pbs_init(void)
{
/*Default style*/
lv_rects_get(LV_RECTS_DEF, &lv_pbs_def.bg); /*Background*/
lv_pbs_def.bg.objs.color = COLOR_WHITE;
lv_pbs_def.bg.gcolor = COLOR_SILVER,
lv_pbs_def.bg.bcolor = COLOR_BLACK;
lv_rects_get(LV_RECTS_DEF, &lv_pbs_def.bg); /*Background*/
lv_pbs_def.bg.objs.color = COLOR_WHITE;
lv_pbs_def.bg.gcolor = COLOR_SILVER,
lv_pbs_def.bg.bcolor = COLOR_BLACK;
lv_rects_get(LV_RECTS_DEF, &lv_pbs_def.bar); /*Bar*/
lv_pbs_def.bar.objs.color = COLOR_LIME;
lv_pbs_def.bar.gcolor = COLOR_GREEN;
lv_pbs_def.bar.bcolor = COLOR_BLACK;
lv_rects_get(LV_RECTS_DEF, &lv_pbs_def.bar); /*Bar*/
lv_pbs_def.bar.objs.color = COLOR_LIME;
lv_pbs_def.bar.gcolor = COLOR_GREEN;
lv_pbs_def.bar.bcolor = COLOR_BLACK;
lv_labels_get(LV_LABELS_DEF, &lv_pbs_def.label);
lv_pbs_def.label.objs.color = COLOR_MAKE(0x20, 0x20, 0x20);
lv_pbs_def.label.line_space = 0;
lv_pbs_def.tmp_bar_mcolor = COLOR_YELLOW;
lv_pbs_def.tmp_bar_gcolor = COLOR_LIME;
lv_pbs_def.tmp_bar_opa = 80;
lv_rects_get(LV_RECTS_DEF, &lv_pbs_def.btn); /*Button*/
lv_pbs_def.btn.objs.color = COLOR_WHITE;
lv_pbs_def.btn.gcolor = COLOR_GRAY;
lv_pbs_def.btn.bcolor = COLOR_GRAY;
lv_pbs_def.btn_size = 0;
lv_labels_get(LV_LABELS_DEF, &lv_pbs_def.label); /*Label*/
lv_pbs_def.label.objs.color = COLOR_MAKE(0x20, 0x20, 0x20);
lv_pbs_def.label.line_space = 0;
/*Slider style*/
memcpy(&lv_pbs_slider, &lv_pbs_def, sizeof(lv_pbs_t));
lv_pbs_slider.bg.round = LV_RECT_CIRCLE;
lv_pbs_slider.bar.round = LV_RECT_CIRCLE;
lv_pbs_slider.btn.round = LV_RECT_CIRCLE;
lv_pbs_slider.btn_size = 40 * LV_DOWNSCALE;
lv_pbs_def.tmp_bar_opa = 80;
}
#endif

View File

@ -23,6 +23,7 @@
#include "../lv_obj/lv_obj.h"
#include "lv_rect.h"
#include "lv_btn.h"
#include "lv_label.h"
/*********************
@ -38,11 +39,13 @@ typedef struct
{
lv_rect_ext_t rect_ext; /*Ext. of ancestor*/
/*New data for this type */
lv_obj_t * label; /*Pointer to the label on the progress bar*/
uint16_t act_value; /*Current value of the progress bar*/
uint16_t min_value; /*Minimum value of the progress bar*/
uint16_t max_value; /*Maximum value of the progress bar*/
char * format_str; /*Format string of the label. E.g. "Progress: %d"*/
lv_obj_t * label; /*Pointer to the label on the progress bar*/
int16_t act_value; /*Current value of the progress bar*/
int16_t tmp_value; /*Value when settings from a display input*/
int16_t min_value; /*Minimum value of the progress bar*/
int16_t max_value; /*Maximum value of the progress bar*/
char * format_str; /*Format string of the label. E.g. "Progress: %d"*/
uint8_t set_in_prog :1;/*Indicates the setting by display input is in progress*/
}lv_pb_ext_t;
/*Style of progress bar*/
@ -50,13 +53,19 @@ typedef struct
{
lv_rects_t bg; /*Style of the background (inherited)*/
lv_rects_t bar; /*Style of the bar*/
lv_labels_t label; /*Style of the label*/
lv_labels_t label; /*Style of the label*/
lv_rects_t btn; /*Style of the button (it is rectangle but acts as a button)*/
color_t tmp_bar_mcolor; /*Main color of temporal bar when settings by hand*/
color_t tmp_bar_gcolor; /*Gradient color of temporal bar when settings by hand*/
cord_t btn_size; /*Width or height of the button (depending on the orientation of the pb)*/
uint8_t tmp_bar_opa; /*Opacity of temporal bar in percentage of the object opacity [%]*/
}lv_pbs_t;
/*Built-in styles of progress bar*/
typedef enum
{
LV_PBS_DEF,
LV_PBS_SLIDER,
}lv_pbs_builtin_t;
/**********************
@ -84,7 +93,7 @@ bool lv_pb_signal(lv_obj_t * pb, lv_signal_t sign, void * param);
* @param pb pointer to a progress bar object
* @param value new value
*/
void lv_pb_set_value(lv_obj_t * pb, uint16_t value);
void lv_pb_set_value(lv_obj_t * pb, int16_t value);
/**
* Set minimum and the maximum values of a progress bar
@ -92,7 +101,7 @@ void lv_pb_set_value(lv_obj_t * pb, uint16_t value);
* @param min minimum value
* @param max maximum value
*/
void lv_pb_set_min_max_value(lv_obj_t * pb, uint16_t min, uint16_t max);
void lv_pb_set_min_max_value(lv_obj_t * pb, int16_t min, int16_t max);
/**
* Set format string for the label of the progress bar
@ -106,7 +115,7 @@ void lv_pb_set_format_str(lv_obj_t * pb, const char * format);
* @param pb pointer to a progress bar object
* @return the value of the progress bar
*/
uint16_t lv_pb_get_value(lv_obj_t * pb);
int16_t lv_pb_get_value(lv_obj_t * pb);
/**
* Return with a pointer to a built-in style and/or copy it to a variable