Make PangoEngine{,Lang,Shape} GObjects, and use a GTypeModule-based

Sat Aug  2 23:19:16 2003  Owen Taylor  <otaylor@redhat.com>

        * pango/pango-engine.[ch] modules/*/*-{fc,win32,x}.c
        pango/modules.c pango/break.c pango/pango-context.c
        pango/pango-layout.c pango/pango-modules.h
        pango/querymodules.c pango/shape.c: Make
        PangoEngine{,Lang,Shape} GObjects, and use a
        GTypeModule-based module-loading system closely based
        on the one used for GtkIMContext and GtkThemeEngine.

        * pango/pango-impl-utils.h: OK, I'm tired of typing
        in get_type() functions.

        * pango/pango-script.[ch] pango/pango-script-table.h
        tests/testscript.c tools/gen-script-table.pl: Add port
        of script-range code from ICU in preparation for future
        use. (#91542)

        * tools/gen-script-for-lang.c: Utility program to determine
        the script for each fontconfig .orth file.

        * docs/tmpl/{scripts.sgml,pango-engine-lang.sgml,
        pango-engine-shape.sgml} docs/pango-sections.txt docs/pango-docs.sgml:
        Redo to go along with the above changes.

        * configure.in: chmod +x tests/runtests.sh

3 files changed, 25 insertions, 30 deletions

diff --git a/modules/thai/thai-fc.c b/modules/thai/thai-fc.c
index 6c537639..9a9839a9 100644
--- a/modules/thai/thai-fc.c
+++ b/modules/thai/thai-fc.c
@@ -31,9 +31,14 @@
 
 #include <glib.h>
 #include "pango-engine.h"
+#include "pangofc-font.h"
+
 #include "thai-shaper.h"
 
-#include "pangofc-font.h"
+/* No extra fields needed */
+typedef PangoEngineShape      ThaiEngineFc;
+typedef PangoEngineShapeClass ThaiEngineFcClass ;
+
 #define SCRIPT_ENGINE_NAME "ThaiScriptEngineFc"
 #define RENDER_TYPE PANGO_RENDER_TYPE_FC
 
@@ -199,31 +204,26 @@ thai_has_glyph (ThaiFontInfo *font_info, PangoGlyph glyph)
   return TRUE;
 }
 
-static PangoCoverage *
-thai_engine_get_coverage (PangoFont  *font,
-			   PangoLanguage *lang)
+static void
+thai_engine_fc_class_init (PangoEngineShapeClass *class)
 {
-  return pango_font_get_coverage (font, lang);
+  class->script_shape = thai_engine_shape;
 }
 
-static PangoEngine *
-thai_engine_fc_new ()
-{
-  PangoEngineShape *result;
-  
-  result = g_new (PangoEngineShape, 1);
+PANGO_ENGINE_SHAPE_DEFINE_TYPE (ThaiEngineFc, thai_engine_fc,
+				thai_engine_fc_class_init, NULL);
 
-  result->engine.id = SCRIPT_ENGINE_NAME;
-  result->engine.type = PANGO_ENGINE_TYPE_SHAPE;
-  result->engine.length = sizeof (result);
-  result->script_shape = thai_engine_shape;
-  result->get_coverage = thai_engine_get_coverage;
+void 
+PANGO_MODULE_ENTRY(init) (GTypeModule *module)
+{
+  thai_engine_fc_register_type (module);
+}
 
-  return (PangoEngine *)result;
+void 
+PANGO_MODULE_ENTRY(exit) (void)
+{
 }
 
-/* List the engines contained within this module
- */
 void 
 PANGO_MODULE_ENTRY(list) (PangoEngineInfo **engines,
 			  int              *n_engines)
@@ -232,18 +232,11 @@ PANGO_MODULE_ENTRY(list) (PangoEngineInfo **engines,
   *n_engines = G_N_ELEMENTS (script_engines);
 }
 
-/* Load a particular engine given the ID for the engine
- */
 PangoEngine *
-PANGO_MODULE_ENTRY(load) (const char *id)
+PANGO_MODULE_ENTRY(create) (const char *id)
 {
   if (!strcmp (id, SCRIPT_ENGINE_NAME))
-    return thai_engine_fc_new ();
+    return g_object_new (thai_engine_fc_type, NULL);
   else
     return NULL;
 }
-
-void 
-PANGO_MODULE_ENTRY(unload) (PangoEngine *engine)
-{
-}
diff --git a/modules/thai/thai-shaper.c b/modules/thai/thai-shaper.c
index fd052dd3..4cd98283 100644
--- a/modules/thai/thai-shaper.c
+++ b/modules/thai/thai-shaper.c
@@ -692,7 +692,8 @@ get_next_cluster(const char	*text,
 }
 
 void 
-thai_engine_shape (PangoFont        *font,
+thai_engine_shape (PangoEngineShape *engine,
+		   PangoFont        *font,
 		   const char       *text,
 		   gint              length,
 		   PangoAnalysis    *analysis,
diff --git a/modules/thai/thai-shaper.h b/modules/thai/thai-shaper.h
index 7a9bb31e..b745da86 100644
--- a/modules/thai/thai-shaper.h
+++ b/modules/thai/thai-shaper.h
@@ -54,7 +54,8 @@ thai_has_glyph (ThaiFontInfo *font_info, PangoGlyph glyph);
  * Public functions
  */
 void
-thai_engine_shape (PangoFont        *font,
+thai_engine_shape (PangoEngineShape *engine,
+		   PangoFont        *font,
                    const char       *text,
                    gint              length,
                    PangoAnalysis    *analysis,