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Merge branch 'deprecation-cleanups' into 'main'

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gtk-demo: Replace combo boxes in font features

See merge request GNOME/gtk!5164
This commit is contained in:
Matthias Clasen 2022-10-22 19:23:45 +00:00
commit 799fb41937
2 changed files with 148 additions and 96 deletions
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234
demos/gtk-demo/font_features.c
View File

@ -21,7 +21,75 @@
#include "script-names.h"
#include "language-names.h"
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
/* {{{ ScriptLang object */
G_DECLARE_FINAL_TYPE (ScriptLang, script_lang, SCRIPT, LANG, GObject)
struct _ScriptLang
{
GObject parent;
char *langname;
unsigned int script_index;
unsigned int lang_index;
hb_tag_t lang_tag;
};
struct _ScriptLangClass
{
GObjectClass parent_class;
};
G_DEFINE_TYPE (ScriptLang, script_lang, G_TYPE_OBJECT)
static void
script_lang_init (ScriptLang *self)
{
}
static void
script_lang_finalize (GObject *object)
{
ScriptLang *self = SCRIPT_LANG (object);
g_free (self->langname);
G_OBJECT_CLASS (script_lang_parent_class)->finalize (object);
}
static void
script_lang_class_init (ScriptLangClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->finalize = script_lang_finalize;
}
static ScriptLang *
script_lang_new (const char *langname,
unsigned int script_index,
unsigned int lang_index,
hb_tag_t lang_tag)
{
ScriptLang *self;
self = g_object_new (script_lang_get_type (), NULL);
self->langname = g_strdup (langname);
self->script_index = script_index;
self->lang_index = lang_index;
self->lang_tag = lang_tag;
return self;
}
static char *
script_lang_get_langname (ScriptLang *self)
{
return g_strdup (self->langname);
}
/* }}} */
#define MAKE_TAG(a,b,c,d) (unsigned int)(((a) << 24) | ((b) << 16) | ((c) << 8) | (d))
@ -95,6 +163,10 @@ demo_free (gpointer data)
g_clear_pointer (&demo->axes, g_hash_table_unref);
g_clear_pointer (&demo->text, g_free);
gtk_style_context_remove_provider_for_display (gdk_display_get_default (),
GTK_STYLE_PROVIDER (demo->provider));
g_object_unref (demo->provider);
g_free (demo);
}
@ -472,8 +544,6 @@ update_display (void)
GString *s;
char *text;
gboolean has_feature;
GtkTreeIter iter;
GtkTreeModel *model;
PangoFontDescription *desc;
GList *l;
PangoAttrList *attrs;
@ -576,14 +646,13 @@ update_display (void)
features = g_string_free (s, FALSE);
if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (demo->script_lang), &iter))
if (gtk_drop_down_get_selected (GTK_DROP_DOWN (demo->script_lang)) != 0)
{
hb_tag_t lang_tag;
ScriptLang *selected;
model = gtk_combo_box_get_model (GTK_COMBO_BOX (demo->script_lang));
gtk_tree_model_get (model, &iter, 3, &lang_tag, -1);
selected = gtk_drop_down_get_selected_item (GTK_DROP_DOWN (demo->script_lang));
lang = pango_language_from_string (hb_language_to_string (hb_ot_tag_to_language (lang_tag)));
lang = pango_language_from_string (hb_language_to_string (hb_ot_tag_to_language (selected->lang_tag)));
}
else
lang = NULL;
@ -740,40 +809,30 @@ tag_pair_equal (gconstpointer a, gconstpointer b)
return pair_a->script_tag == pair_b->script_tag && pair_a->lang_tag == pair_b->lang_tag;
}
static int
script_sort_func (GtkTreeModel *model,
GtkTreeIter *a,
GtkTreeIter *b,
gpointer user_data)
static GtkOrdering
script_sort (const void *item1,
const void *item2,
void *data)
{
char *sa, *sb;
int ret;
ScriptLang *a = (ScriptLang *)item1;
ScriptLang *b = (ScriptLang *)item2;
gtk_tree_model_get (model, a, 0, &sa, -1);
gtk_tree_model_get (model, b, 0, &sb, -1);
ret = strcmp (sa, sb);
g_free (sa);
g_free (sb);
return ret;
return strcmp (a->langname, b->langname);
}
static void
update_script_combo (void)
{
GtkListStore *store;
GListStore *store;
GtkSortListModel *sortmodel;
hb_font_t *hb_font;
int i, j, k;
PangoFont *pango_font;
GHashTable *tags;
GHashTableIter iter;
TagPair *pair;
char *lang;
hb_tag_t active;
GtkTreeIter active_iter;
gboolean have_active = FALSE;
lang = gtk_font_chooser_get_language (GTK_FONT_CHOOSER (demo->font));
@ -783,7 +842,7 @@ update_script_combo (void)
g_free (lang);
store = gtk_list_store_new (4, G_TYPE_STRING, G_TYPE_UINT, G_TYPE_UINT, G_TYPE_UINT);
store = g_list_store_new (script_lang_get_type ());
pango_font = get_pango_font ();
hb_font = pango_font_get_hb_font (pango_font);
@ -807,19 +866,19 @@ update_script_combo (void)
hb_face = hb_font_get_face (hb_font);
for (i= 0; i < 2; i++)
for (guint i = 0; i < 2; i++)
{
hb_tag_t scripts[80];
unsigned int script_count = G_N_ELEMENTS (scripts);
hb_ot_layout_table_get_script_tags (hb_face, tables[i], 0, &script_count, scripts);
for (j = 0; j < script_count; j++)
for (guint j = 0; j < script_count; j++)
{
hb_tag_t languages[80];
unsigned int language_count = G_N_ELEMENTS (languages);
hb_ot_layout_script_get_language_tags (hb_face, tables[i], j, 0, &language_count, languages);
for (k = 0; k < language_count; k++)
for (guint k = 0; k < language_count; k++)
{
pair = g_new (TagPair, 1);
pair->script_tag = scripts[j];
@ -839,7 +898,6 @@ update_script_combo (void)
{
const char *langname;
char langbuf[5];
GtkTreeIter tree_iter;
if (pair->lang_tag == 0 && pair->script_tag == 0)
langname = NC_("Language", "None");
@ -856,31 +914,31 @@ update_script_combo (void)
}
}
gtk_list_store_insert_with_values (store, &tree_iter, -1,
0, langname,
1, pair->script_index,
2, pair->lang_index,
3, pair->lang_tag,
-1);
if (pair->lang_tag == active)
{
have_active = TRUE;
active_iter = tree_iter;
}
g_list_store_append (store, script_lang_new (langname,
pair->script_index,
pair->lang_index,
pair->lang_tag));
}
g_hash_table_destroy (tags);
gtk_tree_sortable_set_default_sort_func (GTK_TREE_SORTABLE (store),
script_sort_func, NULL, NULL);
gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (store),
GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
GTK_SORT_ASCENDING);
gtk_combo_box_set_model (GTK_COMBO_BOX (demo->script_lang), GTK_TREE_MODEL (store));
if (have_active)
gtk_combo_box_set_active_iter (GTK_COMBO_BOX (demo->script_lang), &active_iter);
else
gtk_combo_box_set_active_iter (GTK_COMBO_BOX (demo->script_lang), 0);
sortmodel = gtk_sort_list_model_new (G_LIST_MODEL (store),
GTK_SORTER (gtk_custom_sorter_new (script_sort, NULL, NULL)));
gtk_drop_down_set_model (GTK_DROP_DOWN (demo->script_lang), G_LIST_MODEL (sortmodel));
for (guint i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (sortmodel)); i++)
{
ScriptLang *item = g_list_model_get_item (G_LIST_MODEL (sortmodel), i);
g_object_unref (item);
if (item->lang_tag == active)
{
gtk_drop_down_set_selected (GTK_DROP_DOWN (demo->script_lang), i);
break;
}
}
g_object_unref (sortmodel);
}
static char *
@ -905,27 +963,19 @@ static void
update_features (void)
{
int i, j;
GtkTreeModel *model;
GtkTreeIter iter;
guint script_index, lang_index;
hb_tag_t lang_tag;
PangoFont *pango_font;
hb_font_t *hb_font;
GList *l;
ScriptLang *selected;
/* set feature presence checks from the font features */
if (!gtk_combo_box_get_active_iter (GTK_COMBO_BOX (demo->script_lang), &iter))
if (gtk_drop_down_get_selected (GTK_DROP_DOWN (demo->script_lang)) == 0)
return;
model = gtk_combo_box_get_model (GTK_COMBO_BOX (demo->script_lang));
gtk_tree_model_get (model, &iter,
1, &script_index,
2, &lang_index,
3, &lang_tag,
-1);
selected = gtk_drop_down_get_selected_item (GTK_DROP_DOWN (demo->script_lang));
if (lang_tag == 0) /* None is selected */
if (selected->lang_tag == 0) /* None is selected */
{
for (l = demo->feature_items; l; l = l->next)
{
@ -966,8 +1016,8 @@ update_features (void)
hb_ot_layout_language_get_feature_tags (hb_face,
tables[i],
script_index,
lang_index,
selected->script_index,
selected->lang_index,
0,
&count,
features);
@ -989,8 +1039,8 @@ update_features (void)
hb_ot_layout_language_find_feature (hb_face,
tables[i],
script_index,
lang_index,
selected->script_index,
selected->lang_index,
features[j],
&feature_index);
@ -1322,10 +1372,9 @@ free_instance (gpointer data)
}
static void
add_instance (hb_face_t *face,
unsigned int index,
GtkWidget *combo,
int pos)
add_instance (hb_face_t *face,
unsigned int index,
GtkStringList *strings)
{
Instance *instance;
hb_ot_name_id_t name_id;
@ -1341,20 +1390,20 @@ add_instance (hb_face_t *face,
instance->index = index;
g_hash_table_add (demo->instances, instance);
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), instance->name);
gtk_string_list_append (GTK_STRING_LIST (strings), instance->name);
}
static void
unset_instance (GtkAdjustment *adjustment)
{
if (demo->instance_combo)
gtk_combo_box_set_active (GTK_COMBO_BOX (demo->instance_combo), 0);
gtk_drop_down_set_selected (GTK_DROP_DOWN (demo->instance_combo), 0);
}
static void
instance_changed (GtkComboBox *combo)
instance_changed (GtkDropDown *combo)
{
char *text;
const char *text;
Instance *instance;
Instance ikey;
int i;
@ -1366,11 +1415,12 @@ instance_changed (GtkComboBox *combo)
hb_font_t *hb_font;
hb_face_t *hb_face;
text = gtk_combo_box_text_get_active_text (GTK_COMBO_BOX_TEXT (combo));
text = gtk_string_list_get_string (GTK_STRING_LIST (gtk_drop_down_get_model (combo)),
gtk_drop_down_get_selected (combo));
if (text[0] == '\0')
goto out;
ikey.name = text;
ikey.name = (char *) text;
instance = g_hash_table_lookup (demo->instances, &ikey);
if (!instance)
{
@ -1411,7 +1461,6 @@ instance_changed (GtkComboBox *combo)
}
out:
g_free (text);
g_clear_object (&pango_font);
g_free (ai);
g_free (coords);
@ -1521,6 +1570,7 @@ update_font_variations (void)
{
GtkWidget *label;
GtkWidget *combo;
GtkStringList *strings;
label = gtk_label_new ("Instance");
gtk_label_set_xalign (GTK_LABEL (label), 0);
@ -1528,26 +1578,28 @@ update_font_variations (void)
gtk_widget_set_valign (label, GTK_ALIGN_BASELINE);
gtk_grid_attach (GTK_GRID (demo->variations_grid), label, 0, -1, 1, 1);
combo = gtk_combo_box_text_new ();
strings = gtk_string_list_new (NULL);
combo = gtk_drop_down_new (G_LIST_MODEL (strings), NULL);
gtk_widget_set_halign (combo, GTK_ALIGN_START);
gtk_widget_set_valign (combo, GTK_ALIGN_BASELINE);
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "");
gtk_string_list_append (strings, "");
for (i = 0; i < hb_ot_var_get_named_instance_count (hb_face); i++)
add_instance (hb_face, i, combo, i);
add_instance (hb_face, i, strings);
for (i = 0; i < hb_ot_var_get_named_instance_count (hb_face); i++)
{
if (matches_instance (hb_face, i, n_axes, design_coords))
{
gtk_combo_box_set_active (GTK_COMBO_BOX (combo), i + 1);
gtk_drop_down_set_selected (GTK_DROP_DOWN (combo), i + 1);
break;
}
}
gtk_grid_attach (GTK_GRID (demo->variations_grid), combo, 1, -1, 3, 1);
g_signal_connect (combo, "changed", G_CALLBACK (instance_changed), NULL);
g_signal_connect (combo, "notify::selecte", G_CALLBACK (instance_changed), NULL);
demo->instance_combo = combo;
}
@ -1694,6 +1746,7 @@ do_font_features (GtkWidget *do_widget)
GtkBuilder *builder;
GtkBuilderScope *scope;
GtkEventController *controller;
GtkExpression *expression;
builder = gtk_builder_new ();
@ -1727,6 +1780,9 @@ do_font_features (GtkWidget *do_widget)
demo->description = GTK_WIDGET (gtk_builder_get_object (builder, "description"));
demo->font = GTK_WIDGET (gtk_builder_get_object (builder, "font"));
demo->script_lang = GTK_WIDGET (gtk_builder_get_object (builder, "script_lang"));
expression = gtk_cclosure_expression_new (G_TYPE_STRING, NULL, 0, NULL, G_CALLBACK (script_lang_get_langname), NULL, NULL);
gtk_drop_down_set_expression (GTK_DROP_DOWN (demo->script_lang), expression);
gtk_expression_unref (expression);
demo->feature_list = GTK_WIDGET (gtk_builder_get_object (builder, "feature_list"));
demo->stack = GTK_WIDGET (gtk_builder_get_object (builder, "stack"));
demo->entry = GTK_WIDGET (gtk_builder_get_object (builder, "entry"));
@ -1745,8 +1801,8 @@ do_font_features (GtkWidget *do_widget)
demo->swin = GTK_WIDGET (gtk_builder_get_object (builder, "swin"));
demo->provider = gtk_css_provider_new ();
gtk_style_context_add_provider (gtk_widget_get_style_context (demo->swin),
GTK_STYLE_PROVIDER (demo->provider), 800);
gtk_style_context_add_provider_for_display (gdk_display_get_default (),
GTK_STYLE_PROVIDER (demo->provider), 800);
basic_value_changed (demo->size_adjustment, demo->size_entry);
basic_value_changed (demo->letterspacing_adjustment, demo->letterspacing_entry);
@ -1824,3 +1880,5 @@ do_font_features (GtkWidget *do_widget)
return window;
}
/* vim:set foldmethod=marker expandtab: */

10
demos/gtk-demo/font_features.ui
View File

@ -259,16 +259,10 @@
<object class="GtkBox" id="feature_list">
<property name="orientation">vertical</property>
<child>
<object class="GtkComboBox" id="script_lang">
<object class="GtkDropDown" id="script_lang">
<property name="tooltip-text" translatable="yes">Language System</property>
<property name="margin-top">10</property>
<signal name="changed" handler="font_features_script_changed" swapped="no"/>
<child>
<object class="GtkCellRendererText"/>
<attributes>
<attribute name="text">0</attribute>
</attributes>
</child>
<signal name="notify::selected" handler="font_features_script_changed" swapped="no"/>
</object>
</child>
</object>