[pango/pango2-windows: 2/2] pangowin32-utils.c: Add aliases as from Pango-1.x

[Chun-wei Fan <fanchunwei src gnome org>]

commit 46a971529d7b9df4f60c92dc17f6fed1d50d7dce
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Fri Jul 1 12:33:09 2022 +0800

    pangowin32-utils.c: Add aliases as from Pango-1.x
    
    This adds more font families for the PangoFontMap for the aliases that we are
    using, as per what we did in Pango-1.x, sans the families that we share for
    different Unicode needs, which would be used in fallback fontmaps.
    
    Fallbacks would be added in a later commit, when it is clearer for how to
    create a PangoFontMap for that purpose.

 pango2/pangowin32-utils.c | 109 +++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 103 insertions(+), 6 deletions(-)
---
diff --git a/pango2/pangowin32-utils.c b/pango2/pangowin32-utils.c
index b44bf4765..4c974c010 100644
--- a/pango2/pangowin32-utils.c
+++ b/pango2/pangowin32-utils.c
@@ -22,20 +22,114 @@
 #include "pango-impl-utils.h"
 #include "pangowin32-utils-private.h"
 
+#define MAX_ALIAS_LENGTH 11
+#define MAX_FAMILY_LENGTH 20
+
 void
 pango2_win32_font_map_add_aliases_and_fallbacks (Pango2FontMap *map)
 {
-  /* Add generic aliases */
+  /* list referred from Pango 1.x, from pangowin32-fontmap.c */
+  const char sans_families[][MAX_FAMILY_LENGTH] =
+    {"dejavu", "sans", "arial", "tahoma",
+     "arial unicode ms", "lucida sans unicode",
+     "browallia new" };
+  const char serif_families[][MAX_FAMILY_LENGTH] =
+    {"dejavu serif", "times new roman", "georgia", "angsana new"};
+  const char mono_families[][MAX_FAMILY_LENGTH] =
+    {"dejavu sans mono", "consolas", "courier new",
+     "lucida console", "courier monothai"};
+
+  /* TODO: Add when how to populate fallback fontmap is clearer */
+  const char fallback_families[][MAX_FAMILY_LENGTH] =
+    {"simsun", "simhei", "mingliu",
+     "gulimche", "ms gothic", "sylfaen",
+     "kartika", "latha", "mangal", "raavi"};
+
+  const char sans_aliases [][MAX_ALIAS_LENGTH] = {"Sans-serif", "Sans"};
+  const char mono_aliases [][MAX_ALIAS_LENGTH] = {"Mono", "Monospace"};
+
+  /* populate families for Sans and Sans-serif aliases */
+  for (gsize i = 0; i < G_N_ELEMENTS (sans_families); i++)
+    {
+      Pango2FontFamily *family = pango2_font_map_get_family (map, sans_families[i]);
+
+      if (family)
+        {
+          for (gsize j = 0; j < G_N_ELEMENTS (sans_aliases); j++)
+            {
+              Pango2GenericFamily *alias_family;
+
+              alias_family = pango2_generic_family_new (sans_aliases[j]);
+              pango2_generic_family_add_family (alias_family, family);
+              pango2_font_map_add_family (map, PANGO2_FONT_FAMILY (alias_family));
+            }
+        }
+    }
+
+  /* populate families for Serif aliases */
+  for (gsize i = 0; i < G_N_ELEMENTS (serif_families); i++)
+    {
+      Pango2FontFamily *family = pango2_font_map_get_family (map, serif_families[i]);
+
+      if (family)
+        {
+          Pango2GenericFamily *alias_family;
+
+          alias_family = pango2_generic_family_new ("Serif");
+          pango2_generic_family_add_family (alias_family, family);
+          pango2_font_map_add_family (map, PANGO2_FONT_FAMILY (alias_family));
+        }
+    }
+
+  /* populate families for Mono and Monospace aliases */
+  for (gsize i = 0; i < G_N_ELEMENTS (mono_families); i++)
+    {
+      Pango2FontFamily *family = pango2_font_map_get_family (map, mono_families[i]);
+
+      if (family)
+        {
+          for (gsize j = 0; j < G_N_ELEMENTS (mono_aliases); j++)
+            {
+              Pango2GenericFamily *alias_family;
+
+              alias_family = pango2_generic_family_new (mono_aliases[j]);
+              pango2_generic_family_add_family (alias_family, family);
+              pango2_font_map_add_family (map, PANGO2_FONT_FAMILY (alias_family));
+            }
+        }
+    }
+
+  /* TODO: populate fallback fontmap */
+#if 0
+  for (gsize i = 0; i < G_N_ELEMENTS (fallback_families); i++)
+    {
+      Pango2FontFamily *family = pango2_font_map_get_family (map->fallback, fallback_families[i]);
+
+      if (family)
+        {
+          Pango2GenericFamily *alias_family;
+
+          alias_family = pango2_generic_family_new (fallback_families[i]);
+          pango2_generic_family_add_family (alias_family, family);
+          pango2_font_map_add_family (map->fallback, PANGO2_FONT_FAMILY (alias_family));
+        }
+    }
+#endif
+
+  /* Add other generic aliases */
   struct {
     const char *alias_name;
     const char *family_name;
   } aliases[] = {
-    { "Monospace",  "Consolas" },
-    { "Sans-serif", "Arial" },
-    { "Sans",       "Arial" },
-    { "Serif",      "Times New Roman" },
+    { "System-ui",  "Yu Gothic UI" },
     { "System-ui",  "Segoe UI" },
-    { "Emoji",      "Segoe UI Emoji" }
+    { "System-ui",  "Meiryo" },
+    { "Emoji",      "Segoe UI Emoji" },
+    { "Emoji",      "Segoe UI Symbol" },
+    { "Emoji",      "Segoe UI" },
+    { "Cursive",    "Comic Sans MS" },
+    { "Fantasy",    "Gabriola" },
+    { "Fantasy",    "Impact" },
   };
 
 #if 0
@@ -57,3 +151,6 @@ pango2_win32_font_map_add_aliases_and_fallbacks (Pango2FontMap *map)
         }
     }
 }
+
+#undef MAX_ALIAS_LENGTH
+#undef MAX_FAMILY_LENGTH