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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <SFML/Graphics/Font.h>
#include <SFML/Graphics/Text.h>
#include <SFML/Graphics.h>
#include <yaml.h>
#include "common.h"
#include "idlist.h"
#include "vector.h"
#include "text.h"
static inline unsigned int utf8_char_len(unsigned char c)
{
if (c > 0x00 && c < 0xC0)
return 1;
else if (c >= 0xC2 && c < 0xE0)
return 2;
else if (c >= 0xE0 && c < 0xF0)
return 3;
else if (c >= 0xF0 && c < 0xF5)
return 4;
else
return 0;
}
unsigned long utf8_strlen(void *string)
{
unsigned long len = 0, keep = 0;
for (unsigned char *c = string; *c; (keep ? --keep : ++len), ++c)
if (!keep)
keep = (keep = utf8_char_len(*c)) ? keep - 1 : keep;
return len;
}
void utf8to32_strcpy(wchar_t *dest, char *src)
{
wchar_t *dc = dest;
char *c = src;
unsigned long len = 0;
while (*c) {
int clen = utf8_char_len(*c);
if (clen == 1) {
dc[len] = c[0] & 0x7f;
} else if (clen == 2) {
dc[len] = ((c[0] & 0x1f) << 6) | ((c[1] & 0x3f) << 0);
} else if (clen == 3) {
dc[len] = ((c[0] & 0x0f) << 12) | ((c[1] & 0x3f) << 6) | ((c[2] & 0x3f) << 0);
} else if (clen == 4) {
dc[len] = ((c[0] & 0x07) << 18) | ((c[1] & 0x3f) << 12) | ((c[2] & 0x3f) << 6) | ((c[3] & 0x3f) << 0);
} else {
dc[len] = 0;
return;
}
c += clen;
++len;
}
dc[len] = 0;
}
static FILE *openFile(char *filename)
{
FILE *file;
if (!(file = fopen(filename, "rb"))){
printf("ERROR: file \"%s\"cannot be opened\n", filename);
exit(EXIT_FAILURE);
}
return file;
}
struct idlist *load_texts(char *filename)
{
FILE *file = openFile(filename);
yaml_parser_t parser;
yaml_event_t event;
yaml_parser_initialize(&parser);
yaml_parser_set_input_file(&parser, file);
struct idlist *texts = NULL;
struct idlist *texts_node = texts;
do {
if (!yaml_parser_parse(&parser, &event)) {
fprintf(stderr, "Parser error %d\n", parser.error);
exit(EXIT_FAILURE);
}
switch (event.type)
{
case YAML_MAPPING_START_EVENT:
if (!texts) {
texts = list_new();
texts_node = texts;
} else
texts_node = list_append(texts);
texts_node->obj = calloc(1, sizeof(struct text));
break;
case YAML_SCALAR_EVENT:
;yaml_event_t ev;
yaml_parser_parse(&parser, &ev);
while (ev.type != YAML_SCALAR_EVENT) {
yaml_event_delete(&ev);
if (!yaml_parser_parse(&parser, &ev)) {
fprintf(stderr, "Parser error %d\n", parser.error);
exit(EXIT_FAILURE);
}
}
struct text *text = texts_node->obj;
if (!strcmp((char *)event.data.scalar.value, "type")) {
text->type = malloc(sizeof(char) * (strlen((char *)ev.data.scalar.value) + 1));
strcpy(text->type, (char *)ev.data.scalar.value);
} else if (!strcmp((char *)event.data.scalar.value, "scene")) {
text->scene = malloc(sizeof(char) * (strlen((char *)ev.data.scalar.value) + 1));
strcpy(text->scene, (char *)ev.data.scalar.value);
} else if (!strcmp((char *)event.data.scalar.value, "text")) {
text->text = calloc((utf8_strlen(ev.data.scalar.value)) + 1, sizeof(unsigned int));
utf8to32_strcpy(text->text, (char *)ev.data.scalar.value);
} else if (!strcmp((char *)event.data.scalar.value, "font")) {
text->font = malloc(sizeof(char) * (strlen((char *)ev.data.scalar.value) + 1));
strcpy(text->font, (char *)ev.data.scalar.value);
} else if (!strcmp((char *)event.data.scalar.value, "size")) {
text->size = atoi((char *)ev.data.scalar.value);
} else if (!strcmp((char *)event.data.scalar.value, "x")) {
text->pos.x = atoi((char *)ev.data.scalar.value);
} else if (!strcmp((char *)event.data.scalar.value, "y")) {
text->pos.y = atoi((char *)ev.data.scalar.value);
}
yaml_event_delete(&ev);
break;
default:
break;
}
if (event.type != YAML_STREAM_END_EVENT)
yaml_event_delete(&event);
} while (event.type != YAML_STREAM_END_EVENT);
yaml_event_delete(&event);
yaml_parser_delete(&parser);
fclose(file);
return texts;
}
void text_destroy(void *obj)
{
struct text *text = obj;
if (text->type)
free(text->type);
if (text->scene)
free(text->scene);
if (text->text)
free(text->text);
if (text->font)
free(text->font);
free(text);
}
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