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Merge pull request #712 from joltwallet/get_txt_width_fix

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Correctly count text width
This commit is contained in:
Gabor Kiss-Vamosi
2019-01-11 16:42:57 +01:00
committed by GitHub
parent ec19c8c87e d25f0db948
commit ff21f5a590
7 changed files with 28 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lv_draw/lv_draw_label.c
+3 -1
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@@ -185,7 +185,9 @@ void lv_draw_label(const lv_area_t * coords, const lv_area_t * mask, const lv_st
letter_fp(&pos, mask, font, letter, color, opa);
letter_w = lv_font_get_width(font, letter);
pos.x += letter_w + style->text.letter_space;
if(letter_w > 0){
pos.x += letter_w + style->text.letter_space;
}
}
/*Go to next line*/
line_start = line_end;
lv_misc/lv_txt.c
+10 -5
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@@ -212,7 +212,7 @@ uint16_t lv_txt_get_next_line(const char * txt, const lv_font_t * font,
/**
* Give the length of a text with a given font
* @param txt a '\0' terminate string
* @param length length of 'txt' in character count and not bytes(UTF-8 can be 1,2,3 or 4 bytes long)
* @param length length of 'txt' in byte count and not characters (Á is 1 character but 2 bytes in UTF-8)
* @param font pointer to a font
* @param letter_space letter space
* @param flags settings for the text from 'txt_flag_t' enum
@@ -230,7 +230,7 @@ lv_coord_t lv_txt_get_width(const char * txt, uint16_t length,
uint32_t letter;
if(length != 0) {
while(i < length) {
while(i< length){
letter = lv_txt_encoded_next(txt, &i);
if((flag & LV_TXT_FLAG_RECOLOR) != 0) {
if(lv_txt_is_cmd(&cmd_state, letter) != false) {
@@ -238,11 +238,16 @@ lv_coord_t lv_txt_get_width(const char * txt, uint16_t length,
}
}
width += lv_font_get_width(font, letter);
width += letter_space;
lv_coord_t char_width = lv_font_get_width(font, letter);
if(char_width > 0){
width += lv_font_get_width(font, letter);
width += letter_space;
}
}
width -= letter_space; /*Trim the last letter space. Important if the text is center aligned */
if(width > 0) {
width -= letter_space; /*Trim the last letter space. Important if the text is center aligned */
}
}
return width;
lv_misc/lv_txt.h
+1 -1
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@@ -82,7 +82,7 @@ uint16_t lv_txt_get_next_line(const char * txt, const lv_font_t * font,
/**
* Give the length of a text with a given font
* @param txt a '\0' terminate string
* @param length length of 'txt' in character count and not bytes(UTF-8 can be 1,2,3 or 4 bytes long)
* @param length length of 'txt' in byte count and not characters (Á is 1 character but 2 bytes in UTF-8)
* @param font pointer to a font
* @param letter_space letter space
* @param flags settings for the text from 'txt_flag_t' enum
lv_objx/lv_calendar.c
+2 -1
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@@ -14,6 +14,7 @@
#include "../lv_misc/lv_math.h"
#include "../lv_core/lv_indev.h"
#include "../lv_themes/lv_theme.h"
#include <strings.h>
/*********************
* DEFINES
@@ -756,7 +757,7 @@ static void draw_header(lv_obj_t * calendar, const lv_area_t * mask)
/*Add the right arrow*/
arrow_style = ext->btn_pressing > 0 ? ext->style_header_pr : ext->style_header;
header_area.x1 = header_area.x2 - ext->style_header->body.padding.hor -
lv_txt_get_width(SYMBOL_RIGHT, 1, arrow_style->text.font,
lv_txt_get_width(SYMBOL_RIGHT, strlen(SYMBOL_RIGHT), arrow_style->text.font,
arrow_style->text.line_space, LV_TXT_FLAG_NONE);
lv_draw_label(&header_area, mask, arrow_style, opa_scale, SYMBOL_RIGHT, LV_TXT_FLAG_NONE, NULL);
lv_objx/lv_ddlist.c
+2 -1
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@@ -16,6 +16,7 @@
#include "../lv_themes/lv_theme.h"
#include "../lv_misc/lv_symbol_def.h"
#include "../lv_misc/lv_anim.h"
#include <strings.h>
/*********************
* DEFINES
@@ -579,7 +580,7 @@ static bool lv_ddlist_design(lv_obj_t * ddlist, const lv_area_t * mask, lv_desig
new_style.text.opa = sel_style->text.opa;
lv_area_t area_arrow;
area_arrow.x2 = ddlist->coords.x2 - style->body.padding.hor;
area_arrow.x1 = area_arrow.x2 - lv_txt_get_width(SYMBOL_DOWN, 1, sel_style->text.font, 0, 0);
area_arrow.x1 = area_arrow.x2 - lv_txt_get_width(SYMBOL_DOWN, (strlen(SYMBOL_DOWN), sel_style->text.font, 0, 0);
area_arrow.y1 = ddlist->coords.y1 + style->text.line_space;
area_arrow.y2 = area_arrow.y1 + font_h;
lv_objx/lv_label.c
+9 -20
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@@ -440,28 +440,18 @@ void lv_label_get_letter_pos(const lv_obj_t * label, uint16_t index, lv_point_t
}
/*If the last character is line break then go to the next line*/
if((txt[index - 1] == '\n' || txt[index - 1] == '\r') && txt[index] == '\0') {
y += letter_height + style->text.line_space;
line_start = index;
if(index > 0) {
if((txt[index - 1] == '\n' || txt[index - 1] == '\r') && txt[index] == '\0') {
y += letter_height + style->text.line_space;
line_start = index;
}
}
/*Calculate the x coordinate*/
lv_coord_t x = 0;
uint32_t i = line_start;
uint32_t cnt = line_start; /*Count the letter (in UTF-8 1 letter not 1 byte)*/
lv_txt_cmd_state_t cmd_state = LV_TXT_CMD_STATE_WAIT;
uint32_t letter;
while(cnt < index) {
cnt += lv_txt_encoded_size(&txt[i]);
letter = lv_txt_encoded_next(txt, &i);
/*Handle the recolor command*/
if((flag & LV_TXT_FLAG_RECOLOR) != 0) {
if(lv_txt_is_cmd(&cmd_state, txt[i]) != false) {
continue; /*Skip the letter is it is part of a command*/
}
}
x += lv_font_get_width(font, letter) + style->text.letter_space;
}
lv_coord_t x = lv_txt_get_width(&txt[line_start], index - line_start,
font, style->text.letter_space, flag);
if(index != line_start) x += style->text.letter_space;
if(ext->align == LV_LABEL_ALIGN_CENTER) {
lv_coord_t line_w;
@@ -476,7 +466,6 @@ void lv_label_get_letter_pos(const lv_obj_t * label, uint16_t index, lv_point_t
x += lv_obj_get_width(label) - line_w;
}
pos->x = x;
pos->y = y;
}
lv_objx/lv_ta.c
+1 -1
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@@ -1281,7 +1281,7 @@ static void refr_cursor_area(lv_obj_t * ta)
lv_label_get_letter_pos(ext->label, cur_pos, &letter_pos);
/*If the cursor is out of the text (most right) draw it to the next line*/
if(letter_pos.x + ext->label->coords.x1 + letter_w > ext->label->coords.x2 && ext->one_line == 0) {
if(letter_pos.x + ext->label->coords.x1 + letter_w > ext->label->coords.x2 && ext->one_line == 0 && lv_label_get_align(ext->label) != LV_LABEL_ALIGN_RIGHT) {
letter_pos.x = 0;
letter_pos.y += letter_h + label_style->text.line_space;