From be16794ba17246eb035bdda42bb5e69d6bf5fa40 Mon Sep 17 00:00:00 2001
From: Erik Abrahamsson <erik85>
Date: Fri, 24 Sep 2021 12:41:49 -0500
Subject: Geometry Nodes: String to Curves Node

This commit adds a node that generates a text paragraph as curve
instances. The inputs on the node control the overall shape of the
paragraph, and other nodes can be used to move the individual instances
afterwards. To output more than one line, the "Special Characters" node
can be used.

The node outputs instances instead of real geometry so that it doesn't
have to duplicate work for every character afterwards. This is much
more efficient, because all of the curve evaluation and nodes like fill
curve don't have to repeat the same calculation for every instance of
the same character.

In the future, the instances component will support attributes, and the
node can output attribute fields like "Word Index" and "Line Index".

Differential Revision: https://developer.blender.org/D11522
---
 source/blender/blenkernel/intern/font.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

(limited to 'source/blender/blenkernel/intern/font.c')

diff --git a/source/blender/blenkernel/intern/font.c b/source/blender/blenkernel/intern/font.c
index aa13f86523a..1053b727cbc 100644
--- a/source/blender/blenkernel/intern/font.c
+++ b/source/blender/blenkernel/intern/font.c
@@ -490,15 +490,15 @@ static void build_underline(Curve *cu,
   mul_v2_fl(bp[3].vec, font_size);
 }
 
-static void buildchar(Curve *cu,
-                      ListBase *nubase,
-                      unsigned int character,
-                      CharInfo *info,
-                      float ofsx,
-                      float ofsy,
-                      float rot,
-                      int charidx,
-                      const float fsize)
+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) {
@@ -1525,7 +1525,7 @@ static bool vfont_to_curve(Object *ob,
       }
       /* We do not want to see any character for \n or \r */
       if (cha != '\n') {
-        buildchar(cu, r_nubase, cha, info, ct->xof, ct->yof, ct->rot, i, font_size);
+        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')) {
-- 
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