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/** \file
* \brief Text and Font Simulation using FreeType library.
*
* See Copyright Notice in cd.h
*/
#include <string.h>
#include <stdlib.h>
#include <memory.h>
#include <stdio.h>
#include "cd_truetype.h"
/*******************************************
Inicializa o Rasterizador
********************************************/
#ifdef WIN32
#include <windows.h>
static int ReadStringKey(HKEY base_key, char* key_name, char* value_name, char* value)
{
HKEY key;
DWORD max_size = 512;
if (RegOpenKeyEx(base_key, key_name, 0, KEY_READ, &key) != ERROR_SUCCESS)
return 0;
if (RegQueryValueEx(key, value_name, NULL, NULL, (LPBYTE)value, &max_size) != ERROR_SUCCESS)
{
RegCloseKey(key);
return 0;
}
RegCloseKey(key);
return 1;
}
char* GetFontDir(void)
{
static char font_dir[512];
if (!ReadStringKey(HKEY_CURRENT_USER, "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders", "Fonts", font_dir))
return "";
else
{
int i, size = (int)strlen(font_dir);
for(i = 0; i < size; i++)
{
if (font_dir[i] == '\\')
font_dir[i] = '/';
}
return font_dir;
}
}
#endif
int cdTT_load(cdTT_Text * tt_text, const char *font, int size, double xres, double yres)
{
char filename[10240];
FILE *file; /* usado apenas para procurar pelo arquivo */
FT_Error error;
FT_Face face;
/* abre arq. no dir. corrente */
sprintf(filename, "%s.ttf", font);
file = fopen(filename, "r");
if (file)
fclose(file);
else
{
/* se nao conseguiu, abre arq. no dir. do cd, */
char* env = getenv("CDDIR");
if (env)
{
sprintf(filename, "%s/%s.ttf", env, font);
file = fopen(filename, "r");
}
if (file)
fclose(file);
else
{
#ifdef WIN32
/* no caso do Windows procura no seu diretorio de fontes. */
sprintf(filename, "%s/%s.ttf", GetFontDir(), font);
file = fopen(filename, "r");
if (file)
fclose(file);
else
return 0;
#else
return 0;
#endif
}
}
error = FT_New_Face(tt_text->library, filename, 0, &face );
if (error)
return 0;
/* char_height is 1/64th of points */
error = FT_Set_Char_Size(face, 0, size*64, (int)(xres*25.4), (int)(yres*25.4));
if (error)
{
FT_Done_Face(face);
return 0;
}
if (tt_text->face && tt_text->face != face)
FT_Done_Face(tt_text->face);
tt_text->face = face;
tt_text->ascent = face->size->metrics.ascender >> 6;
tt_text->descent = abs(face->size->metrics.descender >> 6);
tt_text->max_height = face->size->metrics.height >> 6;
tt_text->max_width = face->size->metrics.max_advance >> 6;
if (!face->charmap)
FT_Set_Charmap(face, face->charmaps[0]);
return 1;
}
static void cdTT_checkversion(cdTT_Text* tt_text)
{
FT_Int major, minor, patch;
FT_Library_Version(tt_text->library, &major, &minor, &patch);
if (major != FREETYPE_MAJOR ||
minor != FREETYPE_MINOR)
{
printf("CD - Canvas Draw: Warning - Different FreeType library used!\n"
" Compiled = %d.%d.%d\n"
" RunTime = %d.%d.%d\n",
FREETYPE_MAJOR, FREETYPE_MINOR, FREETYPE_PATCH, major, minor, patch);
}
}
/*******************************************
Inicializaccao
********************************************/
cdTT_Text* cdTT_create(void)
{
static int first = 1;
cdTT_Text * tt_text = malloc(sizeof(cdTT_Text));
memset(tt_text, 0, sizeof(cdTT_Text));
FT_Init_FreeType(&tt_text->library);
if (first)
{
cdTT_checkversion(tt_text);
first = 0;
}
return tt_text;
}
/*******************************************
Desaloca Recursos
********************************************/
void cdTT_free(cdTT_Text * tt_text)
{
if (tt_text->rgba_data)
free(tt_text->rgba_data);
if (tt_text->face)
FT_Done_Face(tt_text->face);
FT_Done_FreeType(tt_text->library);
free(tt_text);
}
#ifdef SunOS_OLD
void *memmove( void *dest, const void *src, size_t count )
{
return memcpy(dest, src, count);
}
#endif
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