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gtk-demo: Replace combo boxes in font features
This is a slightly more complicated combo box, so we need an auxiliary object.
This commit is contained in:
Matthias Clasen
parent
93f9b2d519
commit
3d7fb26588
@ -21,7 +21,75 @@
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#include "script-names.h"
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#include "language-names.h"
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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/* {{{ ScriptLang object */
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G_DECLARE_FINAL_TYPE (ScriptLang, script_lang, SCRIPT, LANG, GObject)
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struct _ScriptLang
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{
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GObject parent;
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char *langname;
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unsigned int script_index;
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unsigned int lang_index;
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hb_tag_t lang_tag;
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};
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struct _ScriptLangClass
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{
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GObjectClass parent_class;
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};
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G_DEFINE_TYPE (ScriptLang, script_lang, G_TYPE_OBJECT)
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static void
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script_lang_init (ScriptLang *self)
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{
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}
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static void
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script_lang_finalize (GObject *object)
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{
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ScriptLang *self = SCRIPT_LANG (object);
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g_free (self->langname);
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G_OBJECT_CLASS (script_lang_parent_class)->finalize (object);
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}
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static void
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script_lang_class_init (ScriptLangClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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object_class->finalize = script_lang_finalize;
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}
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static ScriptLang *
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script_lang_new (const char *langname,
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unsigned int script_index,
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unsigned int lang_index,
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hb_tag_t lang_tag)
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{
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ScriptLang *self;
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self = g_object_new (script_lang_get_type (), NULL);
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self->langname = g_strdup (langname);
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self->script_index = script_index;
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self->lang_index = lang_index;
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self->lang_tag = lang_tag;
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return self;
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}
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static char *
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script_lang_get_langname (ScriptLang *self)
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{
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return g_strdup (self->langname);
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}
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/* }}} */
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#define MAKE_TAG(a,b,c,d) (unsigned int)(((a) << 24) | ((b) << 16) | ((c) << 8) | (d))
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@ -472,8 +540,6 @@ update_display (void)
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GString *s;
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char *text;
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gboolean has_feature;
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GtkTreeIter iter;
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GtkTreeModel *model;
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PangoFontDescription *desc;
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GList *l;
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PangoAttrList *attrs;
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@ -576,14 +642,13 @@ update_display (void)
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features = g_string_free (s, FALSE);
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if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (demo->script_lang), &iter))
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if (gtk_drop_down_get_selected (GTK_DROP_DOWN (demo->script_lang)) != 0)
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{
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hb_tag_t lang_tag;
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ScriptLang *selected;
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model = gtk_combo_box_get_model (GTK_COMBO_BOX (demo->script_lang));
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gtk_tree_model_get (model, &iter, 3, &lang_tag, -1);
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selected = gtk_drop_down_get_selected_item (GTK_DROP_DOWN (demo->script_lang));
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lang = pango_language_from_string (hb_language_to_string (hb_ot_tag_to_language (lang_tag)));
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lang = pango_language_from_string (hb_language_to_string (hb_ot_tag_to_language (selected->lang_tag)));
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}
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else
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lang = NULL;
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@ -740,40 +805,30 @@ tag_pair_equal (gconstpointer a, gconstpointer b)
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return pair_a->script_tag == pair_b->script_tag && pair_a->lang_tag == pair_b->lang_tag;
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}
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static int
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script_sort_func (GtkTreeModel *model,
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GtkTreeIter *a,
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GtkTreeIter *b,
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gpointer user_data)
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static GtkOrdering
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script_sort (const void *item1,
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const void *item2,
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void *data)
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{
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char *sa, *sb;
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int ret;
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ScriptLang *a = (ScriptLang *)item1;
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ScriptLang *b = (ScriptLang *)item2;
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gtk_tree_model_get (model, a, 0, &sa, -1);
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gtk_tree_model_get (model, b, 0, &sb, -1);
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ret = strcmp (sa, sb);
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g_free (sa);
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g_free (sb);
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return ret;
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return strcmp (a->langname, b->langname);
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}
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static void
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update_script_combo (void)
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{
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GtkListStore *store;
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GListStore *store;
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GtkSortListModel *sortmodel;
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hb_font_t *hb_font;
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int i, j, k;
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PangoFont *pango_font;
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GHashTable *tags;
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GHashTableIter iter;
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TagPair *pair;
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char *lang;
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hb_tag_t active;
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GtkTreeIter active_iter;
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gboolean have_active = FALSE;
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lang = gtk_font_chooser_get_language (GTK_FONT_CHOOSER (demo->font));
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@ -783,7 +838,7 @@ update_script_combo (void)
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g_free (lang);
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store = gtk_list_store_new (4, G_TYPE_STRING, G_TYPE_UINT, G_TYPE_UINT, G_TYPE_UINT);
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store = g_list_store_new (script_lang_get_type ());
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pango_font = get_pango_font ();
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hb_font = pango_font_get_hb_font (pango_font);
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@ -807,19 +862,19 @@ update_script_combo (void)
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hb_face = hb_font_get_face (hb_font);
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for (i= 0; i < 2; i++)
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for (guint i = 0; i < 2; i++)
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{
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hb_tag_t scripts[80];
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unsigned int script_count = G_N_ELEMENTS (scripts);
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hb_ot_layout_table_get_script_tags (hb_face, tables[i], 0, &script_count, scripts);
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for (j = 0; j < script_count; j++)
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for (guint j = 0; j < script_count; j++)
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{
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hb_tag_t languages[80];
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unsigned int language_count = G_N_ELEMENTS (languages);
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hb_ot_layout_script_get_language_tags (hb_face, tables[i], j, 0, &language_count, languages);
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for (k = 0; k < language_count; k++)
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for (guint k = 0; k < language_count; k++)
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{
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pair = g_new (TagPair, 1);
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pair->script_tag = scripts[j];
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@ -839,7 +894,6 @@ update_script_combo (void)
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{
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const char *langname;
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char langbuf[5];
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GtkTreeIter tree_iter;
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if (pair->lang_tag == 0 && pair->script_tag == 0)
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langname = NC_("Language", "None");
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@ -856,31 +910,31 @@ update_script_combo (void)
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}
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}
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gtk_list_store_insert_with_values (store, &tree_iter, -1,
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0, langname,
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1, pair->script_index,
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2, pair->lang_index,
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3, pair->lang_tag,
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-1);
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if (pair->lang_tag == active)
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{
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have_active = TRUE;
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active_iter = tree_iter;
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}
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g_list_store_append (store, script_lang_new (langname,
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pair->script_index,
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pair->lang_index,
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pair->lang_tag));
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}
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g_hash_table_destroy (tags);
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gtk_tree_sortable_set_default_sort_func (GTK_TREE_SORTABLE (store),
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script_sort_func, NULL, NULL);
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gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (store),
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GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
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GTK_SORT_ASCENDING);
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gtk_combo_box_set_model (GTK_COMBO_BOX (demo->script_lang), GTK_TREE_MODEL (store));
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if (have_active)
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gtk_combo_box_set_active_iter (GTK_COMBO_BOX (demo->script_lang), &active_iter);
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else
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gtk_combo_box_set_active_iter (GTK_COMBO_BOX (demo->script_lang), 0);
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sortmodel = gtk_sort_list_model_new (G_LIST_MODEL (store),
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GTK_SORTER (gtk_custom_sorter_new (script_sort, NULL, NULL)));
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gtk_drop_down_set_model (GTK_DROP_DOWN (demo->script_lang), G_LIST_MODEL (sortmodel));
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for (guint i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (sortmodel)); i++)
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{
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ScriptLang *item = g_list_model_get_item (G_LIST_MODEL (sortmodel), i);
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g_object_unref (item);
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if (item->lang_tag == active)
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{
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gtk_drop_down_set_selected (GTK_DROP_DOWN (demo->script_lang), i);
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break;
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}
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}
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g_object_unref (sortmodel);
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}
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static char *
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@ -905,27 +959,19 @@ static void
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update_features (void)
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{
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int i, j;
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GtkTreeModel *model;
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GtkTreeIter iter;
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guint script_index, lang_index;
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hb_tag_t lang_tag;
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PangoFont *pango_font;
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hb_font_t *hb_font;
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GList *l;
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ScriptLang *selected;
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/* set feature presence checks from the font features */
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if (!gtk_combo_box_get_active_iter (GTK_COMBO_BOX (demo->script_lang), &iter))
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if (gtk_drop_down_get_selected (GTK_DROP_DOWN (demo->script_lang)) == 0)
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return;
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model = gtk_combo_box_get_model (GTK_COMBO_BOX (demo->script_lang));
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gtk_tree_model_get (model, &iter,
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1, &script_index,
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2, &lang_index,
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3, &lang_tag,
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-1);
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selected = gtk_drop_down_get_selected_item (GTK_DROP_DOWN (demo->script_lang));
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if (lang_tag == 0) /* None is selected */
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if (selected->lang_tag == 0) /* None is selected */
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{
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for (l = demo->feature_items; l; l = l->next)
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{
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@ -966,8 +1012,8 @@ update_features (void)
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hb_ot_layout_language_get_feature_tags (hb_face,
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tables[i],
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script_index,
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lang_index,
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selected->script_index,
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selected->lang_index,
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0,
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&count,
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features);
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@ -989,8 +1035,8 @@ update_features (void)
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hb_ot_layout_language_find_feature (hb_face,
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tables[i],
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script_index,
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lang_index,
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selected->script_index,
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selected->lang_index,
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features[j],
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&feature_index);
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@ -1324,8 +1370,7 @@ free_instance (gpointer data)
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static void
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add_instance (hb_face_t *face,
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unsigned int index,
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GtkWidget *combo,
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int pos)
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GtkStringList *strings)
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{
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Instance *instance;
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hb_ot_name_id_t name_id;
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@ -1341,20 +1386,20 @@ add_instance (hb_face_t *face,
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instance->index = index;
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g_hash_table_add (demo->instances, instance);
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gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), instance->name);
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gtk_string_list_append (GTK_STRING_LIST (strings), instance->name);
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}
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static void
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unset_instance (GtkAdjustment *adjustment)
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{
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if (demo->instance_combo)
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gtk_combo_box_set_active (GTK_COMBO_BOX (demo->instance_combo), 0);
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gtk_drop_down_set_selected (GTK_DROP_DOWN (demo->instance_combo), 0);
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}
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static void
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instance_changed (GtkComboBox *combo)
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instance_changed (GtkDropDown *combo)
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{
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char *text;
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const char *text;
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Instance *instance;
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Instance ikey;
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int i;
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@ -1366,11 +1411,12 @@ instance_changed (GtkComboBox *combo)
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hb_font_t *hb_font;
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hb_face_t *hb_face;
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text = gtk_combo_box_text_get_active_text (GTK_COMBO_BOX_TEXT (combo));
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text = gtk_string_list_get_string (GTK_STRING_LIST (gtk_drop_down_get_model (combo)),
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gtk_drop_down_get_selected (combo));
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if (text[0] == '\0')
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goto out;
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ikey.name = text;
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ikey.name = (char *) text;
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instance = g_hash_table_lookup (demo->instances, &ikey);
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if (!instance)
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{
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@ -1411,7 +1457,6 @@ instance_changed (GtkComboBox *combo)
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}
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out:
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g_free (text);
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g_clear_object (&pango_font);
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g_free (ai);
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g_free (coords);
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@ -1521,6 +1566,7 @@ update_font_variations (void)
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{
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GtkWidget *label;
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GtkWidget *combo;
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GtkStringList *strings;
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label = gtk_label_new ("Instance");
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gtk_label_set_xalign (GTK_LABEL (label), 0);
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@ -1528,26 +1574,28 @@ update_font_variations (void)
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gtk_widget_set_valign (label, GTK_ALIGN_BASELINE);
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gtk_grid_attach (GTK_GRID (demo->variations_grid), label, 0, -1, 1, 1);
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combo = gtk_combo_box_text_new ();
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strings = gtk_string_list_new (NULL);
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combo = gtk_drop_down_new (G_LIST_MODEL (strings), NULL);
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gtk_widget_set_halign (combo, GTK_ALIGN_START);
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gtk_widget_set_valign (combo, GTK_ALIGN_BASELINE);
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gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "");
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gtk_string_list_append (strings, "");
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for (i = 0; i < hb_ot_var_get_named_instance_count (hb_face); i++)
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add_instance (hb_face, i, combo, i);
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add_instance (hb_face, i, strings);
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for (i = 0; i < hb_ot_var_get_named_instance_count (hb_face); i++)
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{
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if (matches_instance (hb_face, i, n_axes, design_coords))
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{
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gtk_combo_box_set_active (GTK_COMBO_BOX (combo), i + 1);
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gtk_drop_down_set_selected (GTK_DROP_DOWN (combo), i + 1);
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break;
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}
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}
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gtk_grid_attach (GTK_GRID (demo->variations_grid), combo, 1, -1, 3, 1);
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g_signal_connect (combo, "changed", G_CALLBACK (instance_changed), NULL);
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g_signal_connect (combo, "notify::selecte", G_CALLBACK (instance_changed), NULL);
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demo->instance_combo = combo;
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}
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@ -1694,6 +1742,7 @@ do_font_features (GtkWidget *do_widget)
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GtkBuilder *builder;
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GtkBuilderScope *scope;
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GtkEventController *controller;
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GtkExpression *expression;
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builder = gtk_builder_new ();
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@ -1727,6 +1776,9 @@ do_font_features (GtkWidget *do_widget)
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demo->description = GTK_WIDGET (gtk_builder_get_object (builder, "description"));
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demo->font = GTK_WIDGET (gtk_builder_get_object (builder, "font"));
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demo->script_lang = GTK_WIDGET (gtk_builder_get_object (builder, "script_lang"));
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expression = gtk_cclosure_expression_new (G_TYPE_STRING, NULL, 0, NULL, G_CALLBACK (script_lang_get_langname), NULL, NULL);
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gtk_drop_down_set_expression (GTK_DROP_DOWN (demo->script_lang), expression);
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gtk_expression_unref (expression);
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demo->feature_list = GTK_WIDGET (gtk_builder_get_object (builder, "feature_list"));
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demo->stack = GTK_WIDGET (gtk_builder_get_object (builder, "stack"));
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demo->entry = GTK_WIDGET (gtk_builder_get_object (builder, "entry"));
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@ -1824,3 +1876,5 @@ do_font_features (GtkWidget *do_widget)
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return window;
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}
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/* vim:set foldmethod=marker expandtab: */
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@ -259,16 +259,10 @@
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<object class="GtkBox" id="feature_list">
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<property name="orientation">vertical</property>
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<child>
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<object class="GtkComboBox" id="script_lang">
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<object class="GtkDropDown" id="script_lang">
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<property name="tooltip-text" translatable="yes">Language System</property>
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<property name="margin-top">10</property>
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<signal name="changed" handler="font_features_script_changed" swapped="no"/>
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<child>
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<object class="GtkCellRendererText"/>
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<attributes>
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<attribute name="text">0</attribute>
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</attributes>
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</child>
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<signal name="notify::selected" handler="font_features_script_changed" swapped="no"/>
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</object>
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</child>
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</object>
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