Cleanup: rename BKE_font.h -> BKE_vfont.h

Match API naming prefix (BKE_vfont_*) and DNA_vfont_types.h.

1 files changed, 0 insertions, 1828 deletions

diff --git a/source/blender/blenkernel/intern/font.c b/source/blender/blenkernel/intern/font.c
deleted file mode 100644
index d749237971a..00000000000
--- a/source/blender/blenkernel/intern/font.c
+++ /dev/null
@@ -1,1828 +0,0 @@
-/*
- * 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) 2001-2002 by NaN Holding BV.
- * All rights reserved.
- */
-
-/** \file
- * \ingroup bke
- */
-
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <wctype.h>
-
-#include "CLG_log.h"
-
-#include "MEM_guardedalloc.h"
-
-#include "BLI_ghash.h"
-#include "BLI_listbase.h"
-#include "BLI_math.h"
-#include "BLI_math_base_safe.h"
-#include "BLI_path_util.h"
-#include "BLI_string.h"
-#include "BLI_string_utf8.h"
-#include "BLI_threads.h"
-#include "BLI_utildefines.h"
-
-#include "BLT_translation.h"
-
-#include "DNA_curve_types.h"
-#include "DNA_object_types.h"
-#include "DNA_packedFile_types.h"
-#include "DNA_vfont_types.h"
-
-#include "BKE_anim_path.h"
-#include "BKE_curve.h"
-#include "BKE_font.h"
-#include "BKE_global.h"
-#include "BKE_idtype.h"
-#include "BKE_lib_id.h"
-#include "BKE_main.h"
-#include "BKE_packedFile.h"
-#include "BKE_vfontdata.h"
-
-#include "BLO_read_write.h"
-
-static CLG_LogRef LOG = {"bke.data_transfer"};
-static ThreadRWMutex vfont_rwlock = BLI_RWLOCK_INITIALIZER;
-
-/**************************** Prototypes **************************/
-
-static PackedFile *get_builtin_packedfile(void);
-
-/****************************** VFont Datablock ************************/
-
-static void vfont_init_data(ID *id)
-{
-  VFont *vfont = (VFont *)id;
-  PackedFile *pf = get_builtin_packedfile();
-
-  if (pf) {
-    VFontData *vfd;
-
-    vfd = BKE_vfontdata_from_freetypefont(pf);
-    if (vfd) {
-      vfont->data = vfd;
-
-      BLI_strncpy(vfont->filepath, FO_BUILTIN_NAME, sizeof(vfont->filepath));
-    }
-
-    /* Free the packed file */
-    BKE_packedfile_free(pf);
-  }
-}
-
-static void vfont_copy_data(Main *UNUSED(bmain),
-                            ID *id_dst,
-                            const ID *UNUSED(id_src),
-                            const int flag)
-{
-  VFont *vfont_dst = (VFont *)id_dst;
-
-  /* We never handle usercount here for own data. */
-  const int flag_subdata = flag | LIB_ID_CREATE_NO_USER_REFCOUNT;
-
-  /* Just to be sure, should not have any value actually after reading time. */
-  vfont_dst->temp_pf = NULL;
-
-  if (vfont_dst->packedfile) {
-    vfont_dst->packedfile = BKE_packedfile_duplicate(vfont_dst->packedfile);
-  }
-
-  if (vfont_dst->data) {
-    vfont_dst->data = BKE_vfontdata_copy(vfont_dst->data, flag_subdata);
-  }
-}
-
-/** Free (or release) any data used by this font (does not free the font itself). */
-static void vfont_free_data(ID *id)
-{
-  VFont *vfont = (VFont *)id;
-  BKE_vfont_free_data(vfont);
-
-  if (vfont->packedfile) {
-    BKE_packedfile_free(vfont->packedfile);
-    vfont->packedfile = NULL;
-  }
-}
-
-static void vfont_blend_write(BlendWriter *writer, ID *id, const void *id_address)
-{
-  VFont *vf = (VFont *)id;
-  const bool is_undo = BLO_write_is_undo(writer);
-
-  /* Clean up, important in undo case to reduce false detection of changed datablocks. */
-  vf->data = NULL;
-  vf->temp_pf = NULL;
-
-  /* Do not store packed files in case this is a library override ID. */
-  if (ID_IS_OVERRIDE_LIBRARY(vf) && !is_undo) {
-    vf->packedfile = NULL;
-  }
-
-  /* write LibData */
-  BLO_write_id_struct(writer, VFont, id_address, &vf->id);
-  BKE_id_blend_write(writer, &vf->id);
-
-  /* direct data */
-  BKE_packedfile_blend_write(writer, vf->packedfile);
-}
-
-static void vfont_blend_read_data(BlendDataReader *reader, ID *id)
-{
-  VFont *vf = (VFont *)id;
-  vf->data = NULL;
-  vf->temp_pf = NULL;
-  BKE_packedfile_blend_read(reader, &vf->packedfile);
-}
-
-IDTypeInfo IDType_ID_VF = {
-    .id_code = ID_VF,
-    .id_filter = FILTER_ID_VF,
-    .main_listbase_index = INDEX_ID_VF,
-    .struct_size = sizeof(VFont),
-    .name = "Font",
-    .name_plural = "fonts",
-    .translation_context = BLT_I18NCONTEXT_ID_VFONT,
-    .flags = IDTYPE_FLAGS_NO_ANIMDATA | IDTYPE_FLAGS_APPEND_IS_REUSABLE,
-
-    .init_data = vfont_init_data,
-    .copy_data = vfont_copy_data,
-    .free_data = vfont_free_data,
-    .make_local = NULL,
-    .foreach_id = NULL,
-    .foreach_cache = NULL,
-    .owner_get = NULL,
-
-    .blend_write = vfont_blend_write,
-    .blend_read_data = vfont_blend_read_data,
-    .blend_read_lib = NULL,
-    .blend_read_expand = NULL,
-
-    .blend_read_undo_preserve = NULL,
-
-    .lib_override_apply_post = NULL,
-};
-
-/***************************** VFont *******************************/
-
-/* The vfont code */
-void BKE_vfont_free_data(struct VFont *vfont)
-{
-  if (vfont->data) {
-    if (vfont->data->characters) {
-      GHashIterator gh_iter;
-      GHASH_ITER (gh_iter, vfont->data->characters) {
-        VChar *che = BLI_ghashIterator_getValue(&gh_iter);
-
-        while (che->nurbsbase.first) {
-          Nurb *nu = che->nurbsbase.first;
-          if (nu->bezt) {
-            MEM_freeN(nu->bezt);
-          }
-          BLI_freelinkN(&che->nurbsbase, nu);
-        }
-
-        MEM_freeN(che);
-      }
-
-      BLI_ghash_free(vfont->data->characters, NULL, NULL);
-    }
-
-    MEM_freeN(vfont->data);
-    vfont->data = NULL;
-  }
-
-  if (vfont->temp_pf) {
-    BKE_packedfile_free(vfont->temp_pf); /* NULL when the font file can't be found on disk */
-    vfont->temp_pf = NULL;
-  }
-}
-
-static const void *builtin_font_data = NULL;
-static int builtin_font_size = 0;
-
-bool BKE_vfont_is_builtin(const struct VFont *vfont)
-{
-  return STREQ(vfont->filepath, FO_BUILTIN_NAME);
-}
-
-void BKE_vfont_builtin_register(const void *mem, int size)
-{
-  builtin_font_data = mem;
-  builtin_font_size = size;
-}
-
-static PackedFile *get_builtin_packedfile(void)
-{
-  if (!builtin_font_data) {
-    CLOG_ERROR(&LOG, "Internal error, builtin font not loaded");
-
-    return NULL;
-  }
-
-  void *mem = MEM_mallocN(builtin_font_size, "vfd_builtin");
-
-  memcpy(mem, builtin_font_data, builtin_font_size);
-
-  return BKE_packedfile_new_from_memory(mem, builtin_font_size);
-}
-
-static VFontData *vfont_get_data(VFont *vfont)
-{
-  if (vfont == NULL) {
-    return NULL;
-  }
-
-  /* And then set the data */
-  if (!vfont->data) {
-    PackedFile *pf;
-
-    BLI_rw_mutex_lock(&vfont_rwlock, THREAD_LOCK_WRITE);
-
-    if (vfont->data) {
-      /* Check data again, since it might have been already
-       * initialized from other thread (previous check is
-       * not accurate or threading, just prevents unneeded
-       * lock if all the data is here for sure).
-       */
-      BLI_rw_mutex_unlock(&vfont_rwlock);
-      return vfont->data;
-    }
-
-    if (BKE_vfont_is_builtin(vfont)) {
-      pf = get_builtin_packedfile();
-    }
-    else {
-      if (vfont->packedfile) {
-        pf = vfont->packedfile;
-
-        /* We need to copy a tmp font to memory unless it is already there */
-        if (vfont->temp_pf == NULL) {
-          vfont->temp_pf = BKE_packedfile_duplicate(pf);
-        }
-      }
-      else {
-        pf = BKE_packedfile_new(NULL, vfont->filepath, ID_BLEND_PATH_FROM_GLOBAL(&vfont->id));
-
-        if (vfont->temp_pf == NULL) {
-          vfont->temp_pf = BKE_packedfile_new(
-              NULL, vfont->filepath, ID_BLEND_PATH_FROM_GLOBAL(&vfont->id));
-        }
-      }
-      if (!pf) {
-        CLOG_WARN(&LOG, "Font file doesn't exist: %s", vfont->filepath);
-
-        /* DON'T DO THIS
-         * missing file shouldn't modify path! - campbell */
-#if 0
-        strcpy(vfont->filepath, FO_BUILTIN_NAME);
-#endif
-        pf = get_builtin_packedfile();
-      }
-    }
-
-    if (pf) {
-      vfont->data = BKE_vfontdata_from_freetypefont(pf);
-      if (pf != vfont->packedfile) {
-        BKE_packedfile_free(pf);
-      }
-    }
-
-    BLI_rw_mutex_unlock(&vfont_rwlock);
-  }
-
-  return vfont->data;
-}
-
-VFont *BKE_vfont_load(Main *bmain, const char *filepath)
-{
-  char filename[FILE_MAXFILE];
-  VFont *vfont = NULL;
-  PackedFile *pf;
-  bool is_builtin;
-
-  if (STREQ(filepath, FO_BUILTIN_NAME)) {
-    BLI_strncpy(filename, filepath, sizeof(filename));
-
-    pf = get_builtin_packedfile();
-    is_builtin = true;
-  }
-  else {
-    BLI_split_file_part(filepath, filename, sizeof(filename));
-    pf = BKE_packedfile_new(NULL, filepath, BKE_main_blendfile_path(bmain));
-
-    is_builtin = false;
-  }
-
-  if (pf) {
-    VFontData *vfd;
-
-    vfd = BKE_vfontdata_from_freetypefont(pf);
-    if (vfd) {
-      /* If there's a font name, use it for the ID name. */
-      vfont = BKE_libblock_alloc(bmain, ID_VF, vfd->name[0] ? vfd->name : filename, 0);
-      vfont->data = vfd;
-      BLI_strncpy(vfont->filepath, filepath, sizeof(vfont->filepath));
-
-      /* if autopack is on store the packedfile in de font structure */
-      if (!is_builtin && (G.fileflags & G_FILE_AUTOPACK)) {
-        vfont->packedfile = pf;
-      }
-
-      /* Do not add FO_BUILTIN_NAME to temporary listbase */
-      if (!STREQ(filename, FO_BUILTIN_NAME)) {
-        vfont->temp_pf = BKE_packedfile_new(NULL, filepath, BKE_main_blendfile_path(bmain));
-      }
-    }
-
-    /* Free the packed file */
-    if (!vfont || vfont->packedfile != pf) {
-      BKE_packedfile_free(pf);
-    }
-  }
-
-  return vfont;
-}
-
-VFont *BKE_vfont_load_exists_ex(struct Main *bmain, const char *filepath, bool *r_exists)
-{
-  VFont *vfont;
-  char str[FILE_MAX], strtest[FILE_MAX];
-
-  BLI_strncpy(str, filepath, sizeof(str));
-  BLI_path_abs(str, BKE_main_blendfile_path(bmain));
-
-  /* first search an identical filepath */
-  for (vfont = bmain->fonts.first; vfont; vfont = vfont->id.next) {
-    BLI_strncpy(strtest, vfont->filepath, sizeof(vfont->filepath));
-    BLI_path_abs(strtest, ID_BLEND_PATH(bmain, &vfont->id));
-
-    if (BLI_path_cmp(strtest, str) == 0) {
-      id_us_plus(&vfont->id); /* officially should not, it doesn't link here! */
-      if (r_exists) {
-        *r_exists = true;
-      }
-      return vfont;
-    }
-  }
-
-  if (r_exists) {
-    *r_exists = false;
-  }
-  return BKE_vfont_load(bmain, filepath);
-}
-
-VFont *BKE_vfont_load_exists(struct Main *bmain, const char *filepath)
-{
-  return BKE_vfont_load_exists_ex(bmain, filepath, NULL);
-}
-
-static VFont *which_vfont(Curve *cu, CharInfo *info)
-{
-  switch (info->flag & (CU_CHINFO_BOLD | CU_CHINFO_ITALIC)) {
-    case CU_CHINFO_BOLD:
-      return cu->vfontb ? cu->vfontb : cu->vfont;
-    case CU_CHINFO_ITALIC:
-      return cu->vfonti ? cu->vfonti : cu->vfont;
-    case (CU_CHINFO_BOLD | CU_CHINFO_ITALIC):
-      return cu->vfontbi ? cu->vfontbi : cu->vfont;
-    default:
-      return cu->vfont;
-  }
-}
-
-VFont *BKE_vfont_builtin_get(void)
-{
-  VFont *vfont;
-
-  for (vfont = G_MAIN->fonts.first; vfont; vfont = vfont->id.next) {
-    if (BKE_vfont_is_builtin(vfont)) {
-      return vfont;
-    }
-  }
-
-  return BKE_vfont_load(G_MAIN, FO_BUILTIN_NAME);
-}
-
-static VChar *find_vfont_char(VFontData *vfd, unsigned int character)
-{
-  return BLI_ghash_lookup(vfd->characters, POINTER_FROM_UINT(character));
-}
-
-static void build_underline(Curve *cu,
-                            ListBase *nubase,
-                            const rctf *rect,
-                            float yofs,
-                            float rot,
-                            int charidx,
-                            short mat_nr,
-                            const float font_size)
-{
-  Nurb *nu2;
-  BPoint *bp;
-
-  nu2 = (Nurb *)MEM_callocN(sizeof(Nurb), "underline_nurb");
-  nu2->resolu = cu->resolu;
-  nu2->bezt = NULL;
-  nu2->knotsu = nu2->knotsv = NULL;
-  nu2->charidx = charidx + 1000;
-  if (mat_nr > 0) {
-    nu2->mat_nr = mat_nr - 1;
-  }
-  nu2->pntsu = 4;
-  nu2->pntsv = 1;
-  nu2->orderu = 4;
-  nu2->orderv = 1;
-  nu2->flagu = CU_NURB_CYCLIC;
-
-  bp = (BPoint *)MEM_calloc_arrayN(4, sizeof(BPoint), "underline_bp");
-
-  copy_v4_fl4(bp[0].vec, rect->xmin, (rect->ymax + yofs), 0.0f, 1.0f);
-  copy_v4_fl4(bp[1].vec, rect->xmax, (rect->ymax + yofs), 0.0f, 1.0f);
-  copy_v4_fl4(bp[2].vec, rect->xmax, (rect->ymin + yofs), 0.0f, 1.0f);
-  copy_v4_fl4(bp[3].vec, rect->xmin, (rect->ymin + yofs), 0.0f, 1.0f);
-
-  /* Used by curve extrusion. */
-  bp[0].radius = bp[1].radius = bp[2].radius = bp[3].radius = 1.0f;
-
-  nu2->bp = bp;
-  BLI_addtail(nubase, nu2);
-
-  if (rot != 0.0f) {
-    float si = sinf(rot);
-    float co = cosf(rot);
-
-    for (int i = nu2->pntsu; i > 0; i--) {
-      float *fp = bp->vec;
-
-      float x = fp[0] - rect->xmin;
-      float y = fp[1] - rect->ymin;
-
-      fp[0] = (+co * x + si * y) + rect->xmin;
-      fp[1] = (-si * x + co * y) + rect->ymin;
-
-      bp++;
-    }
-
-    bp = nu2->bp;
-  }
-
-  mul_v2_fl(bp[0].vec, font_size);
-  mul_v2_fl(bp[1].vec, font_size);
-  mul_v2_fl(bp[2].vec, font_size);
-  mul_v2_fl(bp[3].vec, font_size);
-}
-
-void BKE_vfont_build_char(Curve *cu,
-                          ListBase *nubase,
-                          unsigned int character,
-                          CharInfo *info,
-                          float ofsx,
-                          float ofsy,
-                          float rot,
-                          int charidx,
-                          const float fsize)
-{
-  VFontData *vfd = vfont_get_data(which_vfont(cu, info));
-  if (!vfd) {
-    return;
-  }
-
-  /* make a copy at distance ofsx, ofsy with shear */
-  float shear = cu->shear;
-  float si = sinf(rot);
-  float co = cosf(rot);
-
-  VChar *che = find_vfont_char(vfd, character);
-
-  /* Select the glyph data */
-  Nurb *nu1 = NULL;
-  if (che) {
-    nu1 = che->nurbsbase.first;
-  }
-
-  /* Create the character */
-  while (nu1) {
-    BezTriple *bezt1 = nu1->bezt;
-    if (bezt1) {
-      Nurb *nu2 = (Nurb *)MEM_mallocN(sizeof(Nurb), "duplichar_nurb");
-      if (nu2 == NULL) {
-        break;
-      }
-      memcpy(nu2, nu1, sizeof(struct Nurb));
-      nu2->resolu = cu->resolu;
-      nu2->bp = NULL;
-      nu2->knotsu = nu2->knotsv = NULL;
-      nu2->flag = CU_SMOOTH;
-      nu2->charidx = charidx;
-      if (info->mat_nr > 0) {
-        nu2->mat_nr = info->mat_nr - 1;
-      }
-      else {
-        nu2->mat_nr = 0;
-      }
-      /* nu2->trim.first = 0; */
-      /* nu2->trim.last = 0; */
-      int u = nu2->pntsu;
-
-      BezTriple *bezt2 = (BezTriple *)MEM_malloc_arrayN(u, sizeof(BezTriple), "duplichar_bezt2");
-      if (bezt2 == NULL) {
-        MEM_freeN(nu2);
-        break;
-      }
-      memcpy(bezt2, bezt1, u * sizeof(struct BezTriple));
-      nu2->bezt = bezt2;
-
-      if (shear != 0.0f) {
-        bezt2 = nu2->bezt;
-
-        for (int i = nu2->pntsu; i > 0; i--) {
-          bezt2->vec[0][0] += shear * bezt2->vec[0][1];
-          bezt2->vec[1][0] += shear * bezt2->vec[1][1];
-          bezt2->vec[2][0] += shear * bezt2->vec[2][1];
-          bezt2++;
-        }
-      }
-      if (rot != 0.0f) {
-        bezt2 = nu2->bezt;
-        for (int i = nu2->pntsu; i > 0; i--) {
-          float *fp = bezt2->vec[0];
-
-          float x = fp[0];
-          fp[0] = co * x + si * fp[1];
-          fp[1] = -si * x + co * fp[1];
-          x = fp[3];
-          fp[3] = co * x + si * fp[4];
-          fp[4] = -si * x + co * fp[4];
-          x = fp[6];
-          fp[6] = co * x + si * fp[7];
-          fp[7] = -si * x + co * fp[7];
-
-          bezt2++;
-        }
-      }
-      bezt2 = nu2->bezt;
-
-      if (info->flag & CU_CHINFO_SMALLCAPS_CHECK) {
-        const float sca = cu->smallcaps_scale;
-        for (int i = nu2->pntsu; i > 0; i--) {
-          float *fp = bezt2->vec[0];
-          fp[0] *= sca;
-          fp[1] *= sca;
-          fp[3] *= sca;
-          fp[4] *= sca;
-          fp[6] *= sca;
-          fp[7] *= sca;
-          bezt2++;
-        }
-      }
-      bezt2 = nu2->bezt;
-
-      for (int i = nu2->pntsu; i > 0; i--) {
-        float *fp = bezt2->vec[0];
-        fp[0] = (fp[0] + ofsx) * fsize;
-        fp[1] = (fp[1] + ofsy) * fsize;
-        fp[3] = (fp[3] + ofsx) * fsize;
-        fp[4] = (fp[4] + ofsy) * fsize;
-        fp[6] = (fp[6] + ofsx) * fsize;
-        fp[7] = (fp[7] + ofsy) * fsize;
-        bezt2++;
-      }
-
-      BLI_addtail(nubase, nu2);
-    }
-
-    nu1 = nu1->next;
-  }
-}
-
-int BKE_vfont_select_get(Object *ob, int *r_start, int *r_end)
-{
-  Curve *cu = ob->data;
-  EditFont *ef = cu->editfont;
-  int start, end, direction;
-
-  if ((ob->type != OB_FONT) || (ef == NULL)) {
-    return 0;
-  }
-
-  BLI_assert(ef->len >= 0);
-  BLI_assert(ef->selstart >= 0 && ef->selstart <= ef->len + 1);
-  BLI_assert(ef->selend >= 0 && ef->selend <= ef->len + 1);
-  BLI_assert(ef->pos >= 0 && ef->pos <= ef->len);
-
-  if (ef->selstart == 0) {
-    return 0;
-  }
-
-  if (ef->selstart <= ef->selend) {
-    start = ef->selstart - 1;
-    end = ef->selend - 1;
-    direction = 1;
-  }
-  else {
-    start = ef->selend;
-    end = ef->selstart - 2;
-    direction = -1;
-  }
-
-  if (start == end + 1) {
-    return 0;
-  }
-
-  BLI_assert(start < end + 1);
-  *r_start = start;
-  *r_end = end;
-  return direction;
-}
-
-void BKE_vfont_select_clamp(Object *ob)
-{
-  Curve *cu = ob->data;
-  EditFont *ef = cu->editfont;
-
-  BLI_assert((ob->type == OB_FONT) && ef);
-
-  CLAMP_MAX(ef->pos, ef->len);
-  CLAMP_MAX(ef->selstart, ef->len + 1);
-  CLAMP_MAX(ef->selend, ef->len);
-}
-
-static float char_width(Curve *cu, VChar *che, CharInfo *info)
-{
-  /* The character wasn't found, probably ascii = 0, then the width shall be 0 as well */
-  if (che == NULL) {
-    return 0.0f;
-  }
-  if (info->flag & CU_CHINFO_SMALLCAPS_CHECK) {
-    return che->width * cu->smallcaps_scale;
-  }
-
-  return che->width;
-}
-
-static void textbox_scale(TextBox *tb_dst, const TextBox *tb_src, float scale)
-{
-  tb_dst->x = tb_src->x * scale;
-  tb_dst->y = tb_src->y * scale;
-  tb_dst->w = tb_src->w * scale;
-  tb_dst->h = tb_src->h * scale;
-}
-
-/**
- * Used for storing per-line data for alignment & wrapping.
- */
-struct TempLineInfo {
-  float x_min;   /* left margin */
-  float x_max;   /* right margin */
-  int char_nr;   /* number of characters */
-  int wspace_nr; /* number of whitespaces of line */
-};
-
-/* -------------------------------------------------------------------- */
-/** \name VFont Scale Overflow
- *
- * Scale the font to fit inside #TextBox bounds.
- *
- * - Scale horizontally when #TextBox.h is zero,
- *   otherwise scale vertically, allowing the text to wrap horizontally.
- * - Never increase scale to fit, only ever scale on overflow.
- * \{ */
-
-typedef struct VFontToCurveIter {
-  int iteraction;
-  float scale_to_fit;
-  struct {
-    float min;
-    float max;
-  } bisect;
-  bool ok;
-  /**
-   * Wrap words that extends beyond the text-box width (enabled by default).
-   *
-   * Currently only disabled when scale-to-fit is enabled,
-   * so floating-point error doesn't cause unexpected wrapping, see T89241.
-   *
-   * \note This should only be set once, in the #VFONT_TO_CURVE_INIT pass
-   * otherwise iterations wont behave predictably, see T91401.
-   */
-  bool word_wrap;
-  int status;
-} VFontToCurveIter;
-
-enum {
-  VFONT_TO_CURVE_INIT = 0,
-  VFONT_TO_CURVE_BISECT,
-  VFONT_TO_CURVE_SCALE_ONCE,
-  VFONT_TO_CURVE_DONE,
-};
-
-#define FONT_TO_CURVE_SCALE_ITERATIONS 20
-#define FONT_TO_CURVE_SCALE_THRESHOLD 0.0001f
-
-/** \} */
-
-/**
- * Font metric values explained:
- *
- * Baseline: Line where the text "rests", used as the origin vertical position for the glyphs.
- * Em height: Space most glyphs should fit within.
- * Ascent: the recommended distance above the baseline to fit most characters.
- * Descent: the recommended distance below the baseline to fit most characters.
- *
- * We obtain ascent and descent from the font itself (FT_Face->ascender / face->height).
- * And in some cases it is even the same value as FT_Face->bbox.yMax/yMin
- * (font top and bottom respectively).
- *
- * The em_height here is relative to FT_Face->bbox.
- */
-
-static float vfont_ascent(const VFontData *vfd)
-{
-  return vfd->ascender * vfd->em_height;
-}
-static float vfont_descent(const VFontData *vfd)
-{
-  return vfd->em_height - vfont_ascent(vfd);
-}
-
-static bool vfont_to_curve(Object *ob,
-                           Curve *cu,
-                           int mode,
-                           VFontToCurveIter *iter_data,
-                           ListBase *r_nubase,
-                           const char32_t **r_text,
-                           int *r_text_len,
-                           bool *r_text_free,
-                           struct CharTrans **r_chartransdata)
-{
-  EditFont *ef = cu->editfont;
-  EditFontSelBox *selboxes = NULL;
-  VFont *vfont, *oldvfont;
-  VFontData *vfd = NULL;
-  CharInfo *info = NULL, *custrinfo;
-  TextBox tb_scale;
-  bool use_textbox;
-  VChar *che;
-  struct CharTrans *chartransdata = NULL, *ct;
-  struct TempLineInfo *lineinfo;
-  float *f, xof, yof, xtrax, linedist;
-  float twidth = 0, maxlen = 0;
-  int i, slen, j;
-  int curbox;
-  int selstart = 0, selend = 0;
-  int cnr = 0, lnr = 0, wsnr = 0;
-  const char32_t *mem = NULL;
-  char32_t ascii;
-  bool ok = false;
-  const float font_size = cu->fsize * iter_data->scale_to_fit;
-  const bool word_wrap = iter_data->word_wrap;
-  const float xof_scale = safe_divide(cu->xof, font_size);
-  const float yof_scale = safe_divide(cu->yof, font_size);
-  int last_line = -1;
-  /* Length of the text disregarding \n breaks. */
-  float current_line_length = 0.0f;
-  float longest_line_length = 0.0f;
-
-  /* Text at the beginning of the last used text-box (use for y-axis alignment).
-   * We overallocate by one to simplify logic of getting last char. */
-  int *i_textbox_array = MEM_callocN(sizeof(*i_textbox_array) * (cu->totbox + 1),
-                                     "TextBox initial char index");
-
-#define MARGIN_X_MIN (xof_scale + tb_scale.x)
-#define MARGIN_Y_MIN (yof_scale + tb_scale.y)
-
-  /* remark: do calculations including the trailing '\0' of a string
-   * because the cursor can be at that location */
-
-  BLI_assert(ob == NULL || ob->type == OB_FONT);
-
-  /* Set font data */
-  vfont = cu->vfont;
-
-  if (cu->str == NULL) {
-    return ok;
-  }
-  if (vfont == NULL) {
-    return ok;
-  }
-
-  vfd = vfont_get_data(vfont);
-
-  /* The VFont Data can not be found */
-  if (!vfd) {
-    return ok;
-  }
-
-  if (ef) {
-    slen = ef->len;
-    mem = ef->textbuf;
-    custrinfo = ef->textbufinfo;
-  }
-  else {
-    char32_t *mem_tmp;
-    slen = cu->len_char32;
-
-    /* Create unicode string */
-    mem_tmp = MEM_malloc_arrayN((slen + 1), sizeof(*mem_tmp), "convertedmem");
-    if (!mem_tmp) {
-      return ok;
-    }
-
-    BLI_str_utf8_as_utf32(mem_tmp, cu->str, slen + 1);
-
-    if (cu->strinfo == NULL) { /* old file */
-      cu->strinfo = MEM_calloc_arrayN((slen + 4), sizeof(CharInfo), "strinfo compat");
-    }
-    custrinfo = cu->strinfo;
-    if (!custrinfo) {
-      return ok;
-    }
-
-    mem = mem_tmp;
-  }
-
-  if (cu->tb == NULL) {
-    cu->tb = MEM_calloc_arrayN(MAXTEXTBOX, sizeof(TextBox), "TextBox compat");
-  }
-
-  if (ef != NULL && ob != NULL) {
-    if (ef->selboxes) {
-      MEM_freeN(ef->selboxes);
-    }
-
-    if (BKE_vfont_select_get(ob, &selstart, &selend)) {
-      ef->selboxes_len = (selend - selstart) + 1;
-      ef->selboxes = MEM_calloc_arrayN(ef->selboxes_len, sizeof(EditFontSelBox), "font selboxes");
-    }
-    else {
-      ef->selboxes_len = 0;
-      ef->selboxes = NULL;
-    }
-
-    selboxes = ef->selboxes;
-  }
-
-  /* calc offset and rotation of each char */
-  ct = chartransdata = MEM_calloc_arrayN((slen + 1), sizeof(struct CharTrans), "buildtext");
-
-  /* We assume the worst case: 1 character per line (is freed at end anyway) */
-  lineinfo = MEM_malloc_arrayN((slen * 2 + 1), sizeof(*lineinfo), "lineinfo");
-
-  linedist = cu->linedist;
-
-  curbox = 0;
-  textbox_scale(&tb_scale, &cu->tb[curbox], safe_divide(1.0f, font_size));
-  use_textbox = (tb_scale.w != 0.0f);
-
-  xof = MARGIN_X_MIN;
-  yof = MARGIN_Y_MIN;
-
-  xtrax = 0.5f * cu->spacing - 0.5f;
-
-  oldvfont = NULL;
-
-  for (i = 0; i < slen; i++) {
-    custrinfo[i].flag &= ~(CU_CHINFO_WRAP | CU_CHINFO_SMALLCAPS_CHECK | CU_CHINFO_OVERFLOW);
-  }
-
-  for (i = 0; i <= slen; i++) {
-  makebreak:
-    /* Characters in the list */
-    info = &custrinfo[i];
-    ascii = mem[i];
-    if (info->flag & CU_CHINFO_SMALLCAPS) {
-      ascii = towupper(ascii);
-      if (mem[i] != ascii) {
-        info->flag |= CU_CHINFO_SMALLCAPS_CHECK;
-      }
-    }
-
-    vfont = which_vfont(cu, info);
-
-    if (vfont == NULL) {
-      break;
-    }
-
-    if (vfont != oldvfont) {
-      vfd = vfont_get_data(vfont);
-      oldvfont = vfont;
-    }
-
-    /* VFont Data for VFont couldn't be found */
-    if (!vfd) {
-      MEM_freeN(chartransdata);
-      chartransdata = NULL;
-      MEM_freeN(lineinfo);
-      goto finally;
-    }
-
-    if (!ELEM(ascii, '\n', '\0')) {
-      BLI_rw_mutex_lock(&vfont_rwlock, THREAD_LOCK_READ);
-      che = find_vfont_char(vfd, ascii);
-      BLI_rw_mutex_unlock(&vfont_rwlock);
-
-      /*
-       * The character wasn't in the current curve base so load it
-       * But if the font is built-in then do not try loading since
-       * whole font is in the memory already
-       */
-      if (che == NULL && BKE_vfont_is_builtin(vfont) == false) {
-        BLI_rw_mutex_lock(&vfont_rwlock, THREAD_LOCK_WRITE);
-        /* Check it once again, char might have been already load
-         * between previous BLI_rw_mutex_unlock() and this BLI_rw_mutex_lock().
-         *
-         * Such a check should not be a bottleneck since it wouldn't
-         * happen often once all the chars are load.
-         */
-        if ((che = find_vfont_char(vfd, ascii)) == NULL) {
-          che = BKE_vfontdata_char_from_freetypefont(vfont, ascii);
-        }
-        BLI_rw_mutex_unlock(&vfont_rwlock);
-      }
-    }
-    else {
-      che = NULL;
-    }
-
-    twidth = char_width(cu, che, info);
-
-    /* Calculate positions. */
-
-    if ((tb_scale.w != 0.0f) && (ct->dobreak == 0)) { /* May need wrapping. */
-      const float x_available = xof_scale + tb_scale.w;
-      const float x_used = (xof - tb_scale.x) + twidth;
-
-      if (word_wrap == false) {
-        /* When scale to fit is used, don't do any wrapping.
-         *
-         * Floating precision error can cause the text to be slightly larger.
-         * Assert this is a small value as large values indicate incorrect
-         * calculations with scale-to-fit which shouldn't be ignored. See T89241. */
-        if (x_used > x_available) {
-          BLI_assert_msg(compare_ff_relative(x_used, x_available, FLT_EPSILON, 64),
-                         "VFontToCurveIter.scale_to_fit not set correctly!");
-        }
-      }
-      else if (x_used > x_available) {
-        // CLOG_WARN(&LOG, "linewidth exceeded: %c%c%c...", mem[i], mem[i+1], mem[i+2]);
-        for (j = i; j && (mem[j] != '\n') && (chartransdata[j].dobreak == 0); j--) {
-          bool dobreak = false;
-          if (ELEM(mem[j], ' ', '-')) {
-            ct -= (i - (j - 1));
-            cnr -= (i - (j - 1));
-            if (mem[j] == ' ') {
-              wsnr--;
-            }
-            if (mem[j] == '-') {
-              wsnr++;
-            }
-            i = j - 1;
-            xof = ct->xof;
-            ct[1].dobreak = 1;
-            custrinfo[i + 1].flag |= CU_CHINFO_WRAP;
-            dobreak = true;
-          }
-          else if (chartransdata[j].dobreak) {
-            // CLOG_WARN(&LOG, "word too long: %c%c%c...", mem[j], mem[j+1], mem[j+2]);
-            ct->dobreak = 1;
-            custrinfo[i + 1].flag |= CU_CHINFO_WRAP;
-            ct -= 1;
-            cnr -= 1;
-            i--;
-            xof = ct->xof;
-            dobreak = true;
-          }
-          if (dobreak) {
-            if (tb_scale.h == 0.0f) {
-              /* NOTE: If underlined text is truncated away, the extra space is also truncated. */
-              custrinfo[i + 1].flag |= CU_CHINFO_OVERFLOW;
-            }
-            goto makebreak;
-          }
-        }
-      }
-    }
-
-    if (ascii == '\n' || ascii == 0 || ct->dobreak) {
-      ct->xof = xof;
-      ct->yof = yof;
-      ct->linenr = lnr;
-      ct->charnr = cnr;
-
-      yof -= linedist;
-
-      lineinfo[lnr].x_min = (xof - xtrax) - tb_scale.x;
-      lineinfo[lnr].x_max = tb_scale.w;
-      lineinfo[lnr].char_nr = cnr;
-      lineinfo[lnr].wspace_nr = wsnr;
-
-      CLAMP_MIN(maxlen, lineinfo[lnr].x_min);
-
-      if ((tb_scale.h != 0.0f) && ((-(yof - tb_scale.y)) > (tb_scale.h - linedist) - yof_scale)) {
-        if (cu->totbox > (curbox + 1)) {
-          maxlen = 0;
-          curbox++;
-          i_textbox_array[curbox] = i + 1;
-
-          textbox_scale(&tb_scale, &cu->tb[curbox], 1.0f / font_size);
-
-          yof = MARGIN_Y_MIN;
-        }
-        else if (last_line == -1) {
-          last_line = lnr + 1;
-          info->flag |= CU_CHINFO_OVERFLOW;
-        }
-      }
-
-      current_line_length += xof - MARGIN_X_MIN;
-      if (ct->dobreak) {
-        current_line_length += twidth;
-      }
-      else {
-        longest_line_length = MAX2(current_line_length, longest_line_length);
-        current_line_length = 0.0f;
-      }
-
-      /* XXX(campbell): has been unused for years, need to check if this is useful, r4613 r5282. */
-#if 0
-      if (ascii == '\n') {
-        xof = xof_scale;
-      }
-      else {
-        xof = MARGIN_X_MIN;
-      }
-#else
-      xof = MARGIN_X_MIN;
-#endif
-      lnr++;
-      cnr = 0;
-      wsnr = 0;
-    }
-    else if (ascii == 9) { /* TAB */
-      float tabfac;
-
-      ct->xof = xof;
-      ct->yof = yof;
-      ct->linenr = lnr;
-      ct->charnr = cnr++;
-
-      tabfac = (xof - MARGIN_X_MIN + 0.01f);
-      tabfac = 2.0f * ceilf(tabfac / 2.0f);
-      xof = MARGIN_X_MIN + tabfac;
-    }
-    else {
-      EditFontSelBox *sb = NULL;
-      float wsfac;
-
-      ct->xof = xof;
-      ct->yof = yof;
-      ct->linenr = lnr;
-      ct->charnr = cnr++;
-
-      if (selboxes && (i >= selstart) && (i <= selend)) {
-        sb = &selboxes[i - selstart];
-        sb->y = yof * font_size - linedist * font_size * 0.1f;
-        sb->h = linedist * font_size;
-        sb->w = xof * font_size;
-      }
-
-      if (ascii == 32) {
-        wsfac = cu->wordspace;
-        wsnr++;
-      }
-      else {
-        wsfac = 1.0f;
-      }
-
-      /* Set the width of the character */
-      twidth = char_width(cu, che, info);
-
-      xof += (twidth * wsfac * (1.0f + (info->kern / 40.0f))) + xtrax;
-
-      if (sb) {
-        sb->w = (xof * font_size) - sb->w;
-      }
-    }
-    ct++;
-  }
-  current_line_length += xof + twidth - MARGIN_X_MIN;
-  longest_line_length = MAX2(current_line_length, longest_line_length);
-
-  cu->lines = 1;
-  for (i = 0; i <= slen; i++) {
-    ascii = mem[i];
-    ct = &chartransdata[i];
-    if (ascii == '\n' || ct->dobreak) {
-      cu->lines++;
-    }
-  }
-
-  /* linedata is now: width of line */
-
-  if (cu->spacemode != CU_ALIGN_X_LEFT) {
-    ct = chartransdata;
-
-    if (cu->spacemode == CU_ALIGN_X_RIGHT) {
-      struct TempLineInfo *li;
-
-      for (i = 0, li = lineinfo; i < lnr; i++, li++) {
-        li->x_min = (li->x_max - li->x_min) + xof_scale;
-      }
-
-      for (i = 0; i <= slen; i++) {
-        ct->xof += lineinfo[ct->linenr].x_min;
-        ct++;
-      }
-    }
-    else if (cu->spacemode == CU_ALIGN_X_MIDDLE) {
-      struct TempLineInfo *li;
-
-      for (i = 0, li = lineinfo; i < lnr; i++, li++) {
-        li->x_min = ((li->x_max - li->x_min) + xof_scale) / 2.0f;
-      }
-
-      for (i = 0; i <= slen; i++) {
-        ct->xof += lineinfo[ct->linenr].x_min;
-        ct++;
-      }
-    }
-    else if ((cu->spacemode == CU_ALIGN_X_FLUSH) && use_textbox) {
-      struct TempLineInfo *li;
-
-      for (i = 0, li = lineinfo; i < lnr; i++, li++) {
-        li->x_min = ((li->x_max - li->x_min) + xof_scale);
-
-        if (li->char_nr > 1) {
-          li->x_min /= (float)(li->char_nr - 1);
-        }
-      }
-      for (i = 0; i <= slen; i++) {
-        for (j = i; (!ELEM(mem[j], '\0', '\n')) && (chartransdata[j].dobreak == 0) && (j < slen);
-             j++) {
-          /* do nothing */
-        }
-
-        //              if ((mem[j] != '\n') && (mem[j])) {
-        ct->xof += ct->charnr * lineinfo[ct->linenr].x_min;
-        //              }
-        ct++;
-      }
-    }
-    else if ((cu->spacemode == CU_ALIGN_X_JUSTIFY) && use_textbox) {
-      float curofs = 0.0f;
-      for (i = 0; i <= slen; i++) {
-        for (j = i; (mem[j]) && (mem[j] != '\n') && (chartransdata[j].dobreak == 0) && (j < slen);
-             j++) {
-          /* pass */
-        }
-
-        if ((mem[j] != '\n') && ((chartransdata[j].dobreak != 0))) {
-          if (mem[i] == ' ') {
-            struct TempLineInfo *li;
-
-            li = &lineinfo[ct->linenr];
-            curofs += ((li->x_max - li->x_min) + xof_scale) / (float)li->wspace_nr;
-          }
-          ct->xof += curofs;
-        }
-        if (mem[i] == '\n' || chartransdata[i].dobreak) {
-          curofs = 0;
-        }
-        ct++;
-      }
-    }
-  }
-
-  /* top-baseline is default, in this case, do nothing */
-  if (cu->align_y != CU_ALIGN_Y_TOP_BASELINE) {
-    if (tb_scale.h != 0.0f) {
-      /* We need to loop all the text-boxes even the "full" ones.
-       * This way they all get the same vertical padding. */
-      for (int tb_index = 0; tb_index < cu->totbox; tb_index++) {
-        struct CharTrans *ct_first, *ct_last;
-        const int i_textbox = i_textbox_array[tb_index];
-        const int i_textbox_next = i_textbox_array[tb_index + 1];
-        const bool is_last_filled_textbox = ELEM(i_textbox_next, 0, slen + 1);
-        int lines;
-
-        ct_first = chartransdata + i_textbox;
-        ct_last = chartransdata + (is_last_filled_textbox ? slen : i_textbox_next - 1);
-        lines = ct_last->linenr - ct_first->linenr + 1;
-
-        if (cu->overflow == CU_OVERFLOW_TRUNCATE) {
-          /* Ensure overflow doesn't truncate text, before centering vertically
-           * giving odd/buggy results, see: T66614. */
-          if ((tb_index == cu->totbox - 1) && (last_line != -1)) {
-            lines = last_line - ct_first->linenr;
-          }
-        }
-
-        textbox_scale(&tb_scale, &cu->tb[tb_index], 1.0f / font_size);
-        /* The initial Y origin of the textbox is hardcoded to 1.0f * text scale. */
-        const float textbox_y_origin = 1.0f;
-        float yoff = 0.0f;
-
-        switch (cu->align_y) {
-          case CU_ALIGN_Y_TOP_BASELINE:
-            break;
-          case CU_ALIGN_Y_TOP:
-            yoff = textbox_y_origin - vfont_ascent(vfd);
-            break;
-          case CU_ALIGN_Y_CENTER:
-            yoff = ((((vfd->em_height + (lines - 1) * linedist) * 0.5f) - vfont_ascent(vfd)) -
-                    (tb_scale.h * 0.5f) + textbox_y_origin);
-            break;
-          case CU_ALIGN_Y_BOTTOM_BASELINE:
-            yoff = textbox_y_origin + ((lines - 1) * linedist) - tb_scale.h;
-            break;
-          case CU_ALIGN_Y_BOTTOM:
-            yoff = textbox_y_origin + ((lines - 1) * linedist) - tb_scale.h + vfont_descent(vfd);
-            break;
-        }
-
-        for (ct = ct_first; ct <= ct_last; ct++) {
-          ct->yof += yoff;
-        }
-
-        if (is_last_filled_textbox) {
-          break;
-        }
-      }
-    }
-    else {
-      /* Non text-box case handled separately. */
-      float yoff = 0.0f;
-
-      switch (cu->align_y) {
-        case CU_ALIGN_Y_TOP_BASELINE:
-          break;
-        case CU_ALIGN_Y_TOP:
-          yoff = -vfont_ascent(vfd);
-          break;
-        case CU_ALIGN_Y_CENTER:
-          yoff = ((vfd->em_height + (lnr - 1) * linedist) * 0.5f) - vfont_ascent(vfd);
-          break;
-        case CU_ALIGN_Y_BOTTOM_BASELINE:
-          yoff = (lnr - 1) * linedist;
-          break;
-        case CU_ALIGN_Y_BOTTOM:
-          yoff = (lnr - 1) * linedist + vfont_descent(vfd);
-          break;
-      }
-
-      ct = chartransdata;
-      for (i = 0; i <= slen; i++) {
-        ct->yof += yoff;
-        ct++;
-      }
-    }
-  }
-
-  MEM_freeN(lineinfo);
-  MEM_freeN(i_textbox_array);
-
-  /* TEXT ON CURVE */
-  /* NOTE: Only OB_CURVE objects could have a path. */
-  if (cu->textoncurve && cu->textoncurve->type == OB_CURVE) {
-    BLI_assert(cu->textoncurve->runtime.curve_cache != NULL);
-    if (cu->textoncurve->runtime.curve_cache != NULL &&
-        cu->textoncurve->runtime.curve_cache->anim_path_accum_length != NULL) {
-      float distfac, imat[4][4], imat3[3][3], cmat[3][3];
-      float minx, maxx;
-      float timeofs, sizefac;
-
-      if (ob != NULL) {
-        invert_m4_m4(imat, ob->obmat);
-      }
-      else {
-        unit_m4(imat);
-      }
-      copy_m3_m4(imat3, imat);
-
-      copy_m3_m4(cmat, cu->textoncurve->obmat);
-      mul_m3_m3m3(cmat, cmat, imat3);
-      sizefac = normalize_v3(cmat[0]) / font_size;
-
-      ct = chartransdata;
-      minx = maxx = ct->xof;
-      ct++;
-      for (i = 1; i <= slen; i++, ct++) {
-        if (minx > ct->xof) {
-          minx = ct->xof;
-        }
-        if (maxx < ct->xof) {
-          maxx = ct->xof;
-        }
-      }
-
-      /* We put the x-coordinate exact at the curve, the y is rotated. */
-
-      /* length correction */
-      const float chartrans_size_x = maxx - minx;
-      if (chartrans_size_x != 0.0f) {
-        const CurveCache *cc = cu->textoncurve->runtime.curve_cache;
-        const float totdist = BKE_anim_path_get_length(cc);
-        distfac = (sizefac * totdist) / chartrans_size_x;
-        distfac = (distfac > 1.0f) ? (1.0f / distfac) : 1.0f;
-      }
-      else {
-        /* Happens when there are no characters, set this value to place the text cursor. */
-        distfac = 0.0f;
-      }
-
-      timeofs = 0.0f;
-
-      if (distfac < 1.0f) {
-        /* Path longer than text: space-mode is involved. */
-
-        if (cu->spacemode == CU_ALIGN_X_RIGHT) {
-          timeofs = 1.0f - distfac;
-        }
-        else if (cu->spacemode == CU_ALIGN_X_MIDDLE) {
-          timeofs = (1.0f - distfac) / 2.0f;
-        }
-        else if (cu->spacemode == CU_ALIGN_X_FLUSH) {
-          distfac = 1.0f;
-        }
-      }
-
-      if (chartrans_size_x != 0.0f) {
-        distfac /= chartrans_size_x;
-      }
-
-      timeofs += distfac * cu->xof; /* not cyclic */
-
-      ct = chartransdata;
-      for (i = 0; i <= slen; i++, ct++) {
-        float ctime, dtime, vec[4], tvec[4], rotvec[3];
-        float si, co;
-
-        /* Rotate around center character. */
-        info = &custrinfo[i];
-        ascii = mem[i];
-        if (info->flag & CU_CHINFO_SMALLCAPS_CHECK) {
-          ascii = towupper(ascii);
-        }
-
-        che = find_vfont_char(vfd, ascii);
-
-        twidth = char_width(cu, che, info);
-
-        dtime = distfac * 0.5f * twidth;
-
-        ctime = timeofs + distfac * (ct->xof - minx);
-        CLAMP(ctime, 0.0f, 1.0f);
-
-        /* calc the right loc AND the right rot separately */
-        /* vec, tvec need 4 items */
-        BKE_where_on_path(cu->textoncurve, ctime, vec, tvec, NULL, NULL, NULL);
-        BKE_where_on_path(cu->textoncurve, ctime + dtime, tvec, rotvec, NULL, NULL, NULL);
-
-        mul_v3_fl(vec, sizefac);
-
-        ct->rot = (float)M_PI - atan2f(rotvec[1], rotvec[0]);
-
-        si = sinf(ct->rot);
-        co = cosf(ct->rot);
-
-        yof = ct->yof;
-
-        ct->xof = vec[0] + si * yof;
-        ct->yof = vec[1] + co * yof;
-
-        if (selboxes && (i >= selstart) && (i <= selend)) {
-          EditFontSelBox *sb;
-          sb = &selboxes[i - selstart];
-          sb->rot = -ct->rot;
-        }
-      }
-    }
-  }
-
-  if (selboxes) {
-    ct = chartransdata;
-    for (i = 0; i <= selend; i++, ct++) {
-      if (i >= selstart) {
-        selboxes[i - selstart].x = ct->xof * font_size;
-        selboxes[i - selstart].y = ct->yof * font_size;
-      }
-    }
-  }
-
-  if (ELEM(mode, FO_CURSUP, FO_CURSDOWN, FO_PAGEUP, FO_PAGEDOWN) &&
-      iter_data->status == VFONT_TO_CURVE_INIT) {
-    ct = &chartransdata[ef->pos];
-
-    if (ELEM(mode, FO_CURSUP, FO_PAGEUP) && ct->linenr == 0) {
-      /* pass */
-    }
-    else if (ELEM(mode, FO_CURSDOWN, FO_PAGEDOWN) && ct->linenr == lnr) {
-      /* pass */
-    }
-    else {
-      switch (mode) {
-        case FO_CURSUP:
-          lnr = ct->linenr - 1;
-          break;
-        case FO_CURSDOWN:
-          lnr = ct->linenr + 1;
-          break;
-        case FO_PAGEUP:
-          lnr = ct->linenr - 10;
-          break;
-        case FO_PAGEDOWN:
-          lnr = ct->linenr + 10;
-          break;
-      }
-      cnr = ct->charnr;
-      /* seek for char with lnr en cnr */
-      ef->pos = 0;
-      ct = chartransdata;
-      for (i = 0; i < slen; i++) {
-        if (ct->linenr == lnr) {
-          if ((ct->charnr == cnr) || ((ct + 1)->charnr == 0)) {
-            break;
-          }
-        }
-        else if (ct->linenr > lnr) {
-          break;
-        }
-        ef->pos++;
-        ct++;
-      }
-    }
-  }
-
-  /* cursor first */
-  if (ef) {
-    float si, co;
-
-    ct = &chartransdata[ef->pos];
-    si = sinf(ct->rot);
-    co = cosf(ct->rot);
-
-    f = ef->textcurs[0];
-
-    f[0] = font_size * (-0.1f * co + ct->xof);
-    f[1] = font_size * (0.1f * si + ct->yof);
-
-    f[2] = font_size * (0.1f * co + ct->xof);
-    f[3] = font_size * (-0.1f * si + ct->yof);
-
-    f[4] = font_size * (0.1f * co + 0.8f * si + ct->xof);
-    f[5] = font_size * (-0.1f * si + 0.8f * co + ct->yof);
-
-    f[6] = font_size * (-0.1f * co + 0.8f * si + ct->xof);
-    f[7] = font_size * (0.1f * si + 0.8f * co + ct->yof);
-  }
-
-  if (mode == FO_SELCHANGE) {
-    MEM_freeN(chartransdata);
-    chartransdata = NULL;
-  }
-  else if (mode == FO_EDIT) {
-    /* make nurbdata */
-    BKE_nurbList_free(r_nubase);
-
-    ct = chartransdata;
-    for (i = 0; i < slen; i++) {
-      unsigned int cha = (unsigned int)mem[i];
-      info = &(custrinfo[i]);
-
-      if ((cu->overflow == CU_OVERFLOW_TRUNCATE) && (ob && ob->mode != OB_MODE_EDIT) &&
-          (info->flag & CU_CHINFO_OVERFLOW)) {
-        break;
-      }
-
-      if (info->flag & CU_CHINFO_SMALLCAPS_CHECK) {
-        cha = towupper(cha);
-      }
-
-      /* Only do that check in case we do have an object, otherwise all materials get erased every
-       * time that code is called without an object... */
-      if (ob != NULL && (info->mat_nr > (ob->totcol))) {
-        // CLOG_ERROR(
-        //     &LOG, "Illegal material index (%d) in text object, setting to 0", info->mat_nr);
-        info->mat_nr = 0;
-      }
-      /* We do not want to see any character for \n or \r */
-      if (cha != '\n') {
-        BKE_vfont_build_char(cu, r_nubase, cha, info, ct->xof, ct->yof, ct->rot, i, font_size);
-      }
-
-      if ((info->flag & CU_CHINFO_UNDERLINE) && (cha != '\n')) {
-        float ulwidth, uloverlap = 0.0f;
-        rctf rect;
-
-        if ((i < (slen - 1)) && (mem[i + 1] != '\n') &&
-            ((mem[i + 1] != ' ') || (custrinfo[i + 1].flag & CU_CHINFO_UNDERLINE)) &&
-            ((custrinfo[i + 1].flag & CU_CHINFO_WRAP) == 0)) {
-          uloverlap = xtrax + 0.1f;
-        }
-        /* Find the character, the characters has to be in the memory already
-         * since character checking has been done earlier already. */
-        che = find_vfont_char(vfd, cha);
-
-        twidth = char_width(cu, che, info);
-        ulwidth = (twidth * (1.0f + (info->kern / 40.0f))) + uloverlap;
-
-        rect.xmin = ct->xof;
-        rect.xmax = rect.xmin + ulwidth;
-
-        rect.ymin = ct->yof;
-        rect.ymax = rect.ymin - cu->ulheight;
-
-        build_underline(
-            cu, r_nubase, &rect, cu->ulpos - 0.05f, ct->rot, i, info->mat_nr, font_size);
-      }
-      ct++;
-    }
-  }
-
-  if (iter_data->status == VFONT_TO_CURVE_SCALE_ONCE) {
-    /* That means we were in a final run, just exit. */
-    BLI_assert(cu->overflow == CU_OVERFLOW_SCALE);
-    iter_data->status = VFONT_TO_CURVE_DONE;
-  }
-  else if (cu->overflow == CU_OVERFLOW_NONE) {
-    /* Do nothing. */
-  }
-  else if ((tb_scale.h == 0.0f) && (tb_scale.w == 0.0f)) {
-    /* Do nothing. */
-  }
-  else if (cu->overflow == CU_OVERFLOW_SCALE) {
-    if ((cu->totbox == 1) && ((tb_scale.w == 0.0f) || (tb_scale.h == 0.0f))) {
-      /* These are special cases, simpler to deal with. */
-      if (tb_scale.w == 0.0f) {
-        /* This is a potential vertical overflow.
-         * Since there is no width limit, all the new lines are from line breaks. */
-        if ((last_line != -1) && (lnr > last_line)) {
-          const float total_text_height = lnr * linedist;
-          iter_data->scale_to_fit = tb_scale.h / total_text_height;
-          iter_data->status = VFONT_TO_CURVE_SCALE_ONCE;
-          iter_data->word_wrap = false;
-        }
-      }
-      else if (tb_scale.h == 0.0f) {
-        /* This is a horizontal overflow. */
-        if (longest_line_length > tb_scale.w) {
-          /* We make sure longest line before it broke can fit here. */
-          float scale_to_fit = tb_scale.w / longest_line_length;
-
-          iter_data->scale_to_fit = scale_to_fit;
-          iter_data->status = VFONT_TO_CURVE_SCALE_ONCE;
-          iter_data->word_wrap = false;
-        }
-      }
-    }
-    else {
-      /* This is the really complicated case, the best we can do is to iterate over
-       * this function a few times until we get an acceptable result.
-       *
-       * Keep in mind that there is no single number that will make all fit to the end.
-       * In a way, our ultimate goal is to get the highest scale that still leads to the
-       * number of extra lines to zero.
-       */
-      if (iter_data->status == VFONT_TO_CURVE_INIT) {
-        bool valid = true;
-
-        for (int tb_index = 0; tb_index <= curbox; tb_index++) {
-          TextBox *tb = &cu->tb[tb_index];
-          if ((tb->w == 0.0f) || (tb->h == 0.0f)) {
-            valid = false;
-            break;
-          }
-        }
-
-        if (valid && (last_line != -1) && (lnr > last_line)) {
-          const float total_text_height = lnr * linedist;
-          float scale_to_fit = tb_scale.h / total_text_height;
-
-          iter_data->bisect.max = 1.0f;
-          iter_data->bisect.min = scale_to_fit;
-
-          iter_data->status = VFONT_TO_CURVE_BISECT;
-        }
-      }
-      else {
-        BLI_assert(iter_data->status == VFONT_TO_CURVE_BISECT);
-        /* Try to get the highest scale that gives us the exactly
-         * number of lines we need. */
-        bool valid = false;
-
-        if ((last_line != -1) && (lnr > last_line)) {
-          /* It is overflowing, scale it down. */
-          iter_data->bisect.max = iter_data->scale_to_fit;
-        }
-        else {
-          /* It fits inside the textbox, scale it up. */
-          iter_data->bisect.min = iter_data->scale_to_fit;
-          valid = true;
-        }
-
-        /* Bisecting to try to find the best fit. */
-        iter_data->scale_to_fit = (iter_data->bisect.max + iter_data->bisect.min) * 0.5f;
-
-        /* We iterated enough or got a good enough result. */
-        if ((!iter_data->iteraction--) || ((iter_data->bisect.max - iter_data->bisect.min) <
-                                           (cu->fsize * FONT_TO_CURVE_SCALE_THRESHOLD))) {
-          if (valid) {
-            iter_data->status = VFONT_TO_CURVE_DONE;
-          }
-          else {
-            iter_data->scale_to_fit = iter_data->bisect.min;
-            iter_data->status = VFONT_TO_CURVE_SCALE_ONCE;
-          }
-        }
-      }
-    }
-  }
-
-  /* Scale to fit only works for single text box layouts. */
-  if (ELEM(iter_data->status, VFONT_TO_CURVE_SCALE_ONCE, VFONT_TO_CURVE_BISECT)) {
-    /* Always cleanup before going to the scale-to-fit repetition. */
-    if (r_nubase != NULL) {
-      BKE_nurbList_free(r_nubase);
-    }
-
-    if (chartransdata != NULL) {
-      MEM_freeN(chartransdata);
-    }
-
-    if (ef == NULL) {
-      MEM_freeN((void *)mem);
-    }
-    return true;
-  }
-
-  ok = true;
-finally:
-  if (r_text) {
-    *r_text = mem;
-    *r_text_len = slen;
-    *r_text_free = (ef == NULL);
-  }
-  else {
-    if (ef == NULL) {
-      MEM_freeN((void *)mem);
-    }
-  }
-
-  if (chartransdata) {
-    if (ok && r_chartransdata) {
-      *r_chartransdata = chartransdata;
-    }
-    else {
-      MEM_freeN(chartransdata);
-    }
-  }
-
-  /* Store the effective scale, to use for the textbox lines. */
-  cu->fsize_realtime = font_size;
-
-  return ok;
-
-#undef MARGIN_X_MIN
-#undef MARGIN_Y_MIN
-}
-
-#undef DESCENT
-#undef ASCENT
-
-bool BKE_vfont_to_curve_ex(Object *ob,
-                           Curve *cu,
-                           int mode,
-                           ListBase *r_nubase,
-                           const char32_t **r_text,
-                           int *r_text_len,
-                           bool *r_text_free,
-                           struct CharTrans **r_chartransdata)
-{
-  VFontToCurveIter data = {
-      .iteraction = cu->totbox * FONT_TO_CURVE_SCALE_ITERATIONS,
-      .scale_to_fit = 1.0f,
-      .word_wrap = true,
-      .ok = true,
-      .status = VFONT_TO_CURVE_INIT,
-  };
-
-  do {
-    data.ok &= vfont_to_curve(
-        ob, cu, mode, &data, r_nubase, r_text, r_text_len, r_text_free, r_chartransdata);
-  } while (data.ok && ELEM(data.status, VFONT_TO_CURVE_SCALE_ONCE, VFONT_TO_CURVE_BISECT));
-
-  return data.ok;
-}
-
-#undef FONT_TO_CURVE_SCALE_ITERATIONS
-#undef FONT_TO_CURVE_SCALE_THRESHOLD
-
-bool BKE_vfont_to_curve_nubase(Object *ob, int mode, ListBase *r_nubase)
-{
-  BLI_assert(ob->type == OB_FONT);
-
-  return BKE_vfont_to_curve_ex(ob, ob->data, mode, r_nubase, NULL, NULL, NULL, NULL);
-}
-
-/**
- * Warning: expects to have access to evaluated data
- * (i.e. passed object should be evaluated one...).
- */
-bool BKE_vfont_to_curve(Object *ob, int mode)
-{
-  Curve *cu = ob->data;
-
-  return BKE_vfont_to_curve_ex(ob, ob->data, mode, &cu->nurb, NULL, NULL, NULL, NULL);
-}
-
-/* -------------------------------------------------------------------- */
-/** \name VFont Clipboard
- * \{ */
-
-static struct {
-  char32_t *text_buffer;
-  CharInfo *info_buffer;
-  size_t len_utf32;
-  size_t len_utf8;
-} g_vfont_clipboard = {NULL};
-
-void BKE_vfont_clipboard_free(void)
-{
-  MEM_SAFE_FREE(g_vfont_clipboard.text_buffer);
-  MEM_SAFE_FREE(g_vfont_clipboard.info_buffer);
-  g_vfont_clipboard.len_utf32 = 0;
-  g_vfont_clipboard.len_utf8 = 0;
-}
-
-void BKE_vfont_clipboard_set(const char32_t *text_buf, const CharInfo *info_buf, const size_t len)
-{
-  char32_t *text;
-  CharInfo *info;
-
-  /* Clean previous buffers. */
-  BKE_vfont_clipboard_free();
-
-  text = MEM_malloc_arrayN((len + 1), sizeof(*text), __func__);
-  if (text == NULL) {
-    return;
-  }
-
-  info = MEM_malloc_arrayN(len, sizeof(CharInfo), __func__);
-  if (info == NULL) {
-    MEM_freeN(text);
-    return;
-  }
-
-  memcpy(text, text_buf, len * sizeof(*text));
-  text[len] = '\0';
-  memcpy(info, info_buf, len * sizeof(CharInfo));
-
-  /* store new buffers */
-  g_vfont_clipboard.text_buffer = text;
-  g_vfont_clipboard.info_buffer = info;
-  g_vfont_clipboard.len_utf8 = BLI_str_utf32_as_utf8_len(text);
-  g_vfont_clipboard.len_utf32 = len;
-}
-
-void BKE_vfont_clipboard_get(char32_t **r_text_buf,
-                             CharInfo **r_info_buf,
-                             size_t *r_len_utf8,
-                             size_t *r_len_utf32)
-{
-  if (r_text_buf) {
-    *r_text_buf = g_vfont_clipboard.text_buffer;
-  }
-
-  if (r_info_buf) {
-    *r_info_buf = g_vfont_clipboard.info_buffer;
-  }
-
-  if (r_len_utf32) {
-    *r_len_utf32 = g_vfont_clipboard.len_utf32;
-  }
-
-  if (r_len_utf8) {
-    *r_len_utf8 = g_vfont_clipboard.len_utf8;
-  }
-}
-
-/** \} */