blf_default.c

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/*
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2009 Blender Foundation.
 * All rights reserved.
 */
 
#include "DNA_userdef_types.h"
 
#include "BLI_assert.h"
 
#include "BLF_api.h"
 
#include "UI_interface.h"
 
#include "blf_internal.h"
 
/* call BLF_default_set first! */
#define ASSERT_DEFAULT_SET BLI_assert(global_font_default != -1)
 
/* Default size and dpi, for BLF_draw_default. */
static int global_font_default = -1;
static int global_font_dpi = 72;
 
void BLF_default_dpi(int dpi)
{
  global_font_dpi = dpi;
}
 
void BLF_default_set(int fontid)
{
  if ((fontid == -1) || blf_font_id_is_valid(fontid)) {
    global_font_default = fontid;
  }
}
 
int BLF_default(void)
{
  ASSERT_DEFAULT_SET;
  return global_font_default;
}
 
int BLF_set_default(void)
{
  ASSERT_DEFAULT_SET;
 
  const uiStyle *style = UI_style_get();
  BLF_size(global_font_default, style->widgetlabel.points, global_font_dpi);
 
  return global_font_default;
}
 
void BLF_draw_default(float x, float y, float z, const char *str, size_t len)
{
  ASSERT_DEFAULT_SET;
 
  const uiStyle *style = UI_style_get();
  BLF_size(global_font_default, style->widgetlabel.points, global_font_dpi);
  BLF_position(global_font_default, x, y, z);
  BLF_draw(global_font_default, str, len);
}
 
/* same as above but call 'BLF_draw_ascii' */
void BLF_draw_default_ascii(float x, float y, float z, const char *str, size_t len)
{
  ASSERT_DEFAULT_SET;
 
  const uiStyle *style = UI_style_get();
  BLF_size(global_font_default, style->widgetlabel.points, global_font_dpi);
  BLF_position(global_font_default, x, y, z);
  BLF_draw_ascii(global_font_default, str, len); /* XXX, use real length */
}