!487 [206_6] 修复加粗逻辑，避免对emoji字符应用加粗处理

Author: songhahaha66

TeXmacs/tests/tmu/206_6.tmu

@@ -0,0 +1,16 @@
+<TMU|<tuple|1.1.0|2025.1.0>>
+
+<style|<tuple|generic|chinese|number-europe>>
+
+<\body>
+  <with|font-series|bold|加粗文😀😁本测试>
+</body>
+
+<\initial>
+  <\collection>
+    <associate|font|Noto Color Emoji>
+    <associate|font-family|rm>
+    <associate|page-medium|paper>
+    <associate|page-screen-margin|false>
+  </collection>
+</initial>

devel/206_6.md

@@ -0,0 +1,16 @@
+# 修复加粗emoji字体闪退问题
+
+## 2025/08/02
+
+### What
+
+修改加粗逻辑，不对emoji做加粗处理
+
+### How
+
+修改poor_bold.cpp文件
+
+### Why
+
+对emoji字体加粗会直接闪退
+

src/Graphics/Fonts/poor_bold.cpp

@@ -12,6 +12,7 @@
 #include "analyze.hpp"
 #include "cork.hpp"
 #include "font.hpp"
+#include "unicode.hpp"
 #include "universal.hpp"
 
 /******************************************************************************
@@ -271,6 +272,11 @@ int
 poor_bold_font_rep::index_glyph (string s, font_metric& fnm, font_glyphs& fng) {
   int c= base->index_glyph (s, fnm, fng);
   if (c < 0) return c;
+
+  // Check if this is an emoji character, if so, don't apply bolden transform
+  if (is_emoji_character (c)) {
+    return c;
+  }
   SI dpen, dtot;
   fatten (s, dpen, dtot);
   fnm= bolden (fnm, dtot, vertical (dpen));