Implement FreeTypeFont::hasCodePoint()

src/ft/face.h

@@ -83,6 +83,15 @@ namespace ft {
       return int(m_face->descender * y_scale);
     }
 
+    bool hasCodePoint(int codepoint) const {
+      if (m_face) {
+        codepoint = FT_Get_Char_Index(m_face, codepoint);
+        return (codepoint != 0);
+      }
+      else
+        return false;
+    }
+
     Cache& cache() { return m_cache; }
 
   protected:

src/she/common/freetype_font.cpp

@@ -20,7 +20,6 @@ namespace she {
 FreeTypeFont::FreeTypeFont(const char* filename, int height)
   : m_face(m_ft.open(filename))
 {
-  ASSERT(m_face.isValid());
   if (m_face.isValid())
     m_face.setSize(height);
 }
@@ -71,7 +70,7 @@ void FreeTypeFont::setAntialias(bool antialias)
 
 bool FreeTypeFont::hasCodePoint(int codepoint) const
 {
-  return true;                  // TODO
+  return m_face.hasCodePoint(codepoint);
 }
 
 FreeTypeFont* loadFreeTypeFont(const char* filename, int height)

src/she/draw_text.cpp

@@ -39,6 +39,13 @@ retry:;
       uint32_t code = *it;
       if (code && !font->hasCodePoint(code)) {
         Font* newFont = font->fallback();
+
+        // Search a valid fallback
+        while (newFont && !newFont->hasCodePoint(code))
+          newFont = newFont->fallback();
+        if (!newFont)
+          break;
+
         y += font->height()/2 - newFont->height()/2;
 
         font = newFont;