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/**
* $Id:
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2009 Blender Foundation.
* All rights reserved.
*
*
* Contributor(s): Blender Foundation
*
* ***** END GPL LICENSE BLOCK *****
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#ifdef WITH_FREETYPE2
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_GLYPH_H
#endif /* WITH_FREETYPE2 */
#include "MEM_guardedalloc.h"
#include "DNA_listBase.h"
#include "DNA_vec_types.h"
#include "BKE_utildefines.h"
#include "BLI_blenlib.h"
#include "BLI_linklist.h" /* linknode */
#include "BLI_string.h"
#include "BIF_gl.h"
#include "BIF_glutil.h"
#include "blf_internal_types.h"
#include "blf_internal.h"
#ifdef WITH_FREETYPE2
/* Max number of font in memory.
* Take care that now every font have a glyph cache per size/dpi,
* so we don't need load the same font with different size, just
* load one and call BLF_size.
*/
#define BLF_MAX_FONT 16
/* Font array. */
FontBLF *global_font[BLF_MAX_FONT];
/* Number of font. */
int global_font_num= 0;
/* Current font. */
int global_font_cur= 0;
#endif /* WITH_FREETYPE2 */
int BLF_init(void)
{
#ifdef WITH_FREETYPE2
int i;
for (i= 0; i < BLF_MAX_FONT; i++)
global_font[i]= NULL;
return(blf_font_init());
#else
return(0);
#endif
}
void BLF_exit(void)
{
#ifdef WITH_FREETYPE2
FontBLF *font;
int i;
for (i= 0; i < global_font_num; i++) {
font= global_font[i];
if(font)
blf_font_free(font);
}
blf_font_exit();
#endif
}
int blf_search(char *name)
{
#ifdef WITH_FREETYPE2
FontBLF *font;
int i;
for (i= 0; i < BLF_MAX_FONT; i++) {
font= global_font[i];
if (font && (!strcmp(font->name, name)))
return(i);
}
#endif
return(-1);
}
int BLF_load(char *name)
{
#ifdef WITH_FREETYPE2
FontBLF *font;
char *filename;
int i;
if (!name)
return(-1);
/* check if we already load this font. */
i= blf_search(name);
if (i >= 0) {
font= global_font[i];
font->ref++;
printf("Increment reference (%d): %s\n", font->ref, name);
return(i);
}
if (global_font_num+1 >= BLF_MAX_FONT) {
printf("Too many fonts!!!\n");
return(-1);
}
filename= blf_dir_search(name);
if (!filename) {
printf("Can't found font: %s\n", name);
return(-1);
}
font= blf_font_new(name, filename);
MEM_freeN(filename);
if (!font) {
printf("Can't load font: %s\n", name);
return(-1);
}
global_font[global_font_num]= font;
i= global_font_num;
global_font_num++;
return(i);
#else
return(-1);
#endif /* WITH_FREETYPE2 */
}
int BLF_load_mem(char *name, unsigned char *mem, int mem_size)
{
#ifdef WITH_FREETYPE2
FontBLF *font;
int i;
if (!name || !mem || !mem_size)
return(-1);
i= blf_search(name);
if (i >= 0) {
font= global_font[i];
font->ref++;
printf("Increment reference (%d): %s\n", font->ref, name);
return(i);
}
if (global_font_num+1 >= BLF_MAX_FONT) {
printf("Too many fonts!!!\n");
return(-1);
}
font= blf_font_new_from_mem(name, mem, mem_size);
if (!font) {
printf("Can't load font, %s from memory!!\n", name);
return(-1);
}
global_font[global_font_num]= font;
i= global_font_num;
global_font_num++;
return(i);
#else
return(-1);
#endif /* WITH_FREETYPE2 */
}
void BLF_set(int fontid)
{
#ifdef WITH_FREETYPE2
if (fontid >= 0 && fontid < BLF_MAX_FONT)
global_font_cur= fontid;
#endif
}
void BLF_aspect(float aspect)
{
#ifdef WITH_FREETYPE2
FontBLF *font;
font= global_font[global_font_cur];
if (font)
font->aspect= aspect;
#endif
}
void BLF_position(float x, float y, float z)
{
#ifdef WITH_FREETYPE2
FontBLF *font;
float remainder;
font= global_font[global_font_cur];
if (font) {
remainder= x - floor(x);
if (remainder > 0.4 && remainder < 0.6) {
if (remainder < 0.5)
x -= 0.1 * font->aspect;
else
x += 0.1 * font->aspect;
}
remainder= y - floor(y);
if (remainder > 0.4 && remainder < 0.6) {
if (remainder < 0.5)
y -= 0.1 * font->aspect;
else
y += 0.1 * font->aspect;
}
font->pos[0]= x;
font->pos[1]= y;
font->pos[2]= z;
}
#endif
}
void BLF_size(int size, int dpi)
{
#ifdef WITH_FREETYPE2
FontBLF *font;
font= global_font[global_font_cur];
if (font)
blf_font_size(font, size, dpi);
#endif
}
void BLF_draw(char *str)
{
#ifdef WITH_FREETYPE2
FontBLF *font;
font= global_font[global_font_cur];
if (font && font->glyph_cache) {
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glPushMatrix();
glTranslatef(font->pos[0], font->pos[1], font->pos[2]);
glScalef(font->aspect, font->aspect, 1.0);
glRotatef(font->angle, 0.0f, 0.0f, 1.0f);
blf_font_draw(font, str);
glPopMatrix();
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
}
#endif /* WITH_FREETYPE2 */
}
void BLF_boundbox(char *str, rctf *box)
{
#ifdef WITH_FREETYPE2
FontBLF *font;
font= global_font[global_font_cur];
if (font && font->glyph_cache)
blf_font_boundbox(font, str, box);
#endif
}
float BLF_width(char *str)
{
#ifdef WITH_FREETYPE2
FontBLF *font;
font= global_font[global_font_cur];
if (font && font->glyph_cache)
return(blf_font_width(font, str));
#endif
return(0.0f);
}
float BLF_height(char *str)
{
#ifdef WITH_FREETYPE2
FontBLF *font;
font= global_font[global_font_cur];
if (font && font->glyph_cache)
return(blf_font_height(font, str));
#endif
return(0.0f);
}
void BLF_rotation(float angle)
{
#ifdef WITH_FREETYPE2
FontBLF *font;
font= global_font[global_font_cur];
if (font)
font->angle= angle;
#endif
}
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