!474 [206_4] 修复部分emoji无法渲染问题并修改字体名称

Author: songhahaha66

TeXmacs/fonts/font-database.scm

@@ -1816,7 +1816,7 @@
 ((Norasi Regular) ((Norasi.ttf 0 104448) (Norasi.otf 0 62392)))
 ((Noteworthy Bold) ((Noteworthy.ttc 1 551924) (Noteworthy.ttc 1 427736) (Noteworthy.ttc 1 560844)))
 ((Noteworthy Light) ((Noteworthy.ttc 0 551924) (Noteworthy.ttc 0 427736) (Noteworthy.ttc 0 560844)))
-((Noto\ Color\ Emoji Regular) ((NotoColorEmoji-Regular.ttf 0 24270832)))
+((Noto\ Color\ Emoji Regular) ((NotoColorEmoji.ttf 0 24270832)))
 ((Noto\ Sans Bold) ((NotoSans-Bold.ttf 0 455164)))
 ((Noto\ Sans Bold\ Italic) ((NotoSans-BoldItalic.ttf 0 471004)))
 ((Noto\ Sans Italic) ((NotoSans-Italic.ttf 0 470472)))

…onts/truetype/NotoColorEmoji-Regular.ttf TeXmacs/fonts/truetype/NotoColorEmoji.ttfTeXmacs/fonts/truetype/NotoColorEmoji-Regular.ttf renamed to TeXmacs/fonts/truetype/NotoColorEmoji.ttf TeXmacs/fonts/truetype/NotoColorEmoji-Regular.ttf renamed to TeXmacs/fonts/truetype/NotoColorEmoji.ttf

@@ -0,0 +1,16 @@
+<TMU|<tuple|1.1.0|2025.0.11>>
+
+<style|<tuple|generic|chinese|number-europe>>
+
+<\body>
+  🐒💦🐵🌕🌙💧
+</body>
+
+<\initial>
+  <\collection>
+    <associate|font|Noto Color Emoji>
+    <associate|font-family|rm>
+    <associate|page-medium|paper>
+    <associate|page-screen-margin|false>
+  </collection>
+</initial>

TeXmacs/tests/tmu/206_4.tmu

@@ -0,0 +1,20 @@
+# 修复部分emoji显示并且修改字体名字
+
+## 2025/07/31
+
+### 如何测试
+
+通过206_4.tmu文件
+
+### What
+
+1. 修改了字体名字由NotoColorEmoji-Regular.ttf变为NotoColorEmoji.ttf
+2. 修复部分emoji无法渲染的问题
+
+### How
+
+Emoji无法渲染在于parse_svgtable对于svgContent的错误解析，偏移量需要在svgDocumentListOffset基础上进行计算。
+
+### Why
+
+Emoji无法正常渲染，字体文件名字需要更改

devel/206_4.md

@@ -785,7 +785,9 @@ parse_svgtable (const string& buf) {
     unsigned int endGlyphID  = get_U16 (tt, offset + 2);
     int          svgOffset   = get_U32 (tt, offset + 4);
     int          svgLength   = get_U32 (tt, offset + 8);
-    string       svgContent  = get_sub (tt, svgOffset, svgOffset + svgLength);
+    string       svgContent=
+        get_sub (tt, table->svgDocumentListOffset + svgOffset,
+                 table->svgDocumentListOffset + svgOffset + svgLength);
     table->records << SVGDocumentRecord{startGlyphID, endGlyphID, svgContent};
   }
   return table;

src/Plugins/Freetype/tt_tools.cpp

@@ -30,13 +30,12 @@ private slots:
 
 /*
 Verification data for SVG table parsing.
-This test uses NotoColorEmoji-Regular.ttf as the test font.
+This test uses NotoColorEmoji.ttf as the test font.
 */
 void
 TestSVGTableParse::init () {
   lolly::init_tbox ();
-  url u= concretize_url (
-      "$TEXMACS_PATH/fonts/truetype/NotoColorEmoji-Regular.ttf");
+  url u= concretize_url ("$TEXMACS_PATH/fonts/truetype/NotoColorEmoji.ttf");
   table= parse_svgtable (u);
 }