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gtk4-demo: Restructure the font features demo

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This commit is contained in:
Matthias Clasen 2022-06-30 17:02:50 -04:00
parent bdb1886fc9
commit d6dde63074
1 changed files with 190 additions and 229 deletions
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419
demos/gtk-demo/font_features.c
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@ -24,24 +24,65 @@
#define MAKE_TAG(a,b,c,d) (unsigned int)(((a) << 24) | ((b) << 16) | ((c) << 8) | (d))
static GtkWidget *the_label;
static GtkWidget *settings;
static GtkWidget *description;
static GtkWidget *font;
static GtkWidget *script_lang;
static GtkWidget *resetbutton;
static GtkWidget *stack;
static GtkWidget *the_entry;
static GtkWidget *variations_heading;
static GtkWidget *variations_grid;
static GtkWidget *instance_combo;
static GtkWidget *edit_toggle;
static GtkAdjustment *size_adjustment;
static GtkAdjustment *letterspacing_adjustment;
static GtkAdjustment *line_height_adjustment;
static GtkWidget *size_entry;
static GtkWidget *letterspacing_entry;
static GtkWidget *line_height_entry;
typedef struct {
unsigned int tag;
const char *name;
GtkWidget *icon;
GtkWidget *dflt;
GtkWidget *feat;
} FeatureItem;
typedef struct {
unsigned int start;
unsigned int end;
PangoFontDescription *desc;
char *features;
PangoLanguage *language;
} Range;
typedef struct {
guint32 tag;
GtkAdjustment *adjustment;
} Axis;
typedef struct {
GtkWidget *the_label;
GtkWidget *settings;
GtkWidget *description;
GtkWidget *font;
GtkWidget *script_lang;
GtkWidget *feature_list;
GtkWidget *variations_grid;
GtkWidget *instance_combo;
GtkWidget *stack;
GtkWidget *the_entry;
GtkWidget *edit_toggle;
GtkAdjustment *size_adjustment;
GtkAdjustment *letterspacing_adjustment;
GtkAdjustment *line_height_adjustment;
GtkWidget *size_entry;
GtkWidget *letterspacing_entry;
GtkWidget *line_height_entry;
GList *feature_items;
GList *ranges;
GHashTable *instances;
GHashTable *axes;
} FontFeaturesDemo;
static void
demo_free (gpointer data)
{
FontFeaturesDemo *demo = data;
g_list_free_full (demo->feature_items, g_free);
g_list_free_full (demo->ranges, g_free);
g_clear_pointer (&demo->instances, g_hash_table_unref);
g_clear_pointer (&demo->axes, g_hash_table_unref);
g_free (demo);
}
static FontFeaturesDemo *demo;
static void update_display (void);
@ -94,26 +135,6 @@ basic_entry_activated (GtkEntry *entry,
gtk_adjustment_set_value (adjustment, value);
}
typedef struct {
unsigned int tag;
const char *name;
GtkWidget *icon;
GtkWidget *dflt;
GtkWidget *feat;
} FeatureItem;
static GList *feature_items;
typedef struct {
unsigned int start;
unsigned int end;
PangoFontDescription *desc;
char *features;
PangoLanguage *language;
} Range;
static GList *ranges;
static void add_font_variations (GString *s);
static void
@ -155,7 +176,7 @@ ensure_range (unsigned int start,
GList *l;
Range *range;
for (l = ranges; l; l = l->next)
for (l = demo->ranges; l; l = l->next)
{
Range *r = l->data;
@ -170,7 +191,7 @@ ensure_range (unsigned int start,
range->start = start;
range->end = end;
ranges = g_list_insert_sorted (ranges, range, compare_range);
demo->ranges = g_list_insert_sorted (demo->ranges, range, compare_range);
set:
if (range->desc)
@ -299,7 +320,7 @@ add_check_group (GtkWidget *box,
item->dflt = NULL;
item->feat = feat;
feature_items = g_list_prepend (feature_items, item);
demo->feature_items = g_list_prepend (demo->feature_items, item);
}
gtk_box_append (GTK_BOX (box), group);
@ -357,7 +378,7 @@ add_radio_group (GtkWidget *box,
item->dflt = NULL;
item->feat = feat;
feature_items = g_list_prepend (feature_items, item);
demo->feature_items = g_list_prepend (demo->feature_items, item);
}
gtk_box_append (GTK_BOX (box), group);
@ -382,9 +403,9 @@ update_display (void)
char *features;
double value;
text = gtk_editable_get_text (GTK_EDITABLE (the_entry));
text = gtk_editable_get_text (GTK_EDITABLE (demo->the_entry));
if (gtk_label_get_selection_bounds (GTK_LABEL (the_label), &ins, &bound))
if (gtk_label_get_selection_bounds (GTK_LABEL (demo->the_label), &ins, &bound))
{
start = g_utf8_offset_to_pointer (text, ins) - text;
end = g_utf8_offset_to_pointer (text, bound) - text;
@ -395,9 +416,9 @@ update_display (void)
end = PANGO_ATTR_INDEX_TO_TEXT_END;
}
desc = gtk_font_chooser_get_font_desc (GTK_FONT_CHOOSER (font));
desc = gtk_font_chooser_get_font_desc (GTK_FONT_CHOOSER (demo->font));
value = gtk_adjustment_get_value (size_adjustment);
value = gtk_adjustment_get_value (demo->size_adjustment);
pango_font_description_set_size (desc, value * PANGO_SCALE);
s = g_string_new ("");
@ -413,7 +434,7 @@ update_display (void)
s = g_string_new ("");
has_feature = FALSE;
for (l = feature_items; l; l = l->next)
for (l = demo->feature_items; l; l = l->next)
{
FeatureItem *item = l->data;
@ -453,11 +474,11 @@ update_display (void)
features = g_string_free (s, FALSE);
if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (script_lang), &iter))
if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (demo->script_lang), &iter))
{
hb_tag_t lang_tag;
model = gtk_combo_box_get_model (GTK_COMBO_BOX (script_lang));
model = gtk_combo_box_get_model (GTK_COMBO_BOX (demo->script_lang));
gtk_tree_model_get (model, &iter,
3, &lang_tag,
-1);
@ -471,23 +492,23 @@ update_display (void)
attrs = pango_attr_list_new ();
if (gtk_adjustment_get_value (letterspacing_adjustment) != 0.)
if (gtk_adjustment_get_value (demo->letterspacing_adjustment) != 0.)
{
attr = pango_attr_letter_spacing_new (gtk_adjustment_get_value (letterspacing_adjustment));
attr = pango_attr_letter_spacing_new (gtk_adjustment_get_value (demo->letterspacing_adjustment));
attr->start_index = start;
attr->end_index = end;
pango_attr_list_insert (attrs, attr);
}
if (gtk_adjustment_get_value (line_height_adjustment) != 1.)
if (gtk_adjustment_get_value (demo->line_height_adjustment) != 1.)
{
attr = pango_attr_line_height_new (gtk_adjustment_get_value (line_height_adjustment));
attr = pango_attr_line_height_new (gtk_adjustment_get_value (demo->line_height_adjustment));
attr->start_index = start;
attr->end_index = end;
pango_attr_list_insert (attrs, attr);
}
for (l = ranges; l; l = l->next)
for (l = demo->ranges; l; l = l->next)
{
Range *range = l->data;
@ -510,10 +531,10 @@ update_display (void)
}
}
gtk_label_set_text (GTK_LABEL (description), font_desc);
gtk_label_set_text (GTK_LABEL (settings), features);
gtk_label_set_text (GTK_LABEL (the_label), text);
gtk_label_set_attributes (GTK_LABEL (the_label), attrs);
gtk_label_set_text (GTK_LABEL (demo->description), font_desc);
gtk_label_set_text (GTK_LABEL (demo->settings), features);
gtk_label_set_text (GTK_LABEL (demo->the_label), text);
gtk_label_set_attributes (GTK_LABEL (demo->the_label), attrs);
g_free (font_desc);
pango_font_description_free (desc);
@ -527,8 +548,8 @@ get_pango_font (void)
PangoFontDescription *desc;
PangoContext *context;
desc = gtk_font_chooser_get_font_desc (GTK_FONT_CHOOSER (font));
context = gtk_widget_get_pango_context (font);
desc = gtk_font_chooser_get_font_desc (GTK_FONT_CHOOSER (demo->font));
context = gtk_widget_get_pango_context (demo->font);
return pango_context_load_font (context, desc);
}
@ -592,7 +613,7 @@ update_script_combo (void)
GtkTreeIter active_iter;
gboolean have_active = FALSE;
lang = gtk_font_chooser_get_language (GTK_FONT_CHOOSER (font));
lang = gtk_font_chooser_get_language (GTK_FONT_CHOOSER (demo->font));
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
active = hb_ot_tag_from_language (hb_language_from_string (lang, -1));
@ -693,11 +714,11 @@ update_script_combo (void)
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 (script_lang), GTK_TREE_MODEL (store));
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 (script_lang), &active_iter);
gtk_combo_box_set_active_iter (GTK_COMBO_BOX (demo->script_lang), &active_iter);
else
gtk_combo_box_set_active_iter (GTK_COMBO_BOX (script_lang), 0);
gtk_combo_box_set_active_iter (GTK_COMBO_BOX (demo->script_lang), 0);
}
static void
@ -714,10 +735,10 @@ update_features (void)
/* set feature presence checks from the font features */
if (!gtk_combo_box_get_active_iter (GTK_COMBO_BOX (script_lang), &iter))
if (!gtk_combo_box_get_active_iter (GTK_COMBO_BOX (demo->script_lang), &iter))
return;
model = gtk_combo_box_get_model (GTK_COMBO_BOX (script_lang));
model = gtk_combo_box_get_model (GTK_COMBO_BOX (demo->script_lang));
gtk_tree_model_get (model, &iter,
1, &script_index,
2, &lang_index,
@ -726,7 +747,7 @@ update_features (void)
if (lang_tag == 0) /* None is selected */
{
for (l = feature_items; l; l = l->next)
for (l = demo->feature_items; l; l = l->next)
{
FeatureItem *item = l->data;
gtk_widget_show (item->feat);
@ -738,7 +759,7 @@ update_features (void)
return;
}
for (l = feature_items; l; l = l->next)
for (l = demo->feature_items; l; l = l->next)
{
FeatureItem *item = l->data;
gtk_widget_hide (item->feat);
@ -779,7 +800,7 @@ update_features (void)
buf[4] = 0;
g_print ("%s present in %s\n", buf, i == 0 ? "GSUB" : "GPOS");
#endif
for (l = feature_items; l; l = l->next)
for (l = demo->feature_items; l; l = l->next)
{
FeatureItem *item = l->data;
@ -804,10 +825,10 @@ update_features (void)
}
}
feat = gtk_font_chooser_get_font_features (GTK_FONT_CHOOSER (font));
feat = gtk_font_chooser_get_font_features (GTK_FONT_CHOOSER (demo->font));
if (feat)
{
for (l = feature_items; l; l = l->next)
for (l = demo->feature_items; l; l = l->next)
{
FeatureItem *item = l->data;
char buf[5];
@ -867,13 +888,6 @@ entry_activated (GtkEntry *entry,
static void unset_instance (GtkAdjustment *adjustment);
typedef struct {
guint32 tag;
GtkAdjustment *adjustment;
} Axis;
static GHashTable *axes;
static void
add_font_variations (GString *s)
{
@ -882,7 +896,7 @@ add_font_variations (GString *s)
char buf[G_ASCII_DTOSTR_BUF_SIZE];
const char *sep = "";
g_hash_table_iter_init (&iter, axes);
g_hash_table_iter_init (&iter, demo->axes);
while (g_hash_table_iter_next (&iter, (gpointer *)NULL, (gpointer *)&axis))
{
char tag[5];
@ -933,7 +947,7 @@ add_axis (hb_face_t *hb_face,
axis_label = gtk_label_new (name);
gtk_widget_set_halign (axis_label, GTK_ALIGN_START);
gtk_widget_set_valign (axis_label, GTK_ALIGN_BASELINE);
gtk_grid_attach (GTK_GRID (variations_grid), axis_label, 0, i, 1, 1);
gtk_grid_attach (GTK_GRID (demo->variations_grid), axis_label, 0, i, 1, 1);
adjustment = gtk_adjustment_new (value, ax->min_value, ax->max_value,
1.0, 10.0, 0.0);
axis_scale = gtk_scale_new (GTK_ORIENTATION_HORIZONTAL, adjustment);
@ -941,18 +955,18 @@ add_axis (hb_face_t *hb_face,
gtk_widget_set_valign (axis_scale, GTK_ALIGN_BASELINE);
gtk_widget_set_hexpand (axis_scale, TRUE);
gtk_widget_set_size_request (axis_scale, 100, -1);
gtk_grid_attach (GTK_GRID (variations_grid), axis_scale, 1, i, 1, 1);
gtk_grid_attach (GTK_GRID (demo->variations_grid), axis_scale, 1, i, 1, 1);
axis_entry = gtk_entry_new ();
gtk_widget_set_valign (axis_entry, GTK_ALIGN_BASELINE);
gtk_editable_set_width_chars (GTK_EDITABLE (axis_entry), 4);
gtk_editable_set_max_width_chars (GTK_EDITABLE (axis_entry), 4);
gtk_widget_set_hexpand (axis_entry, FALSE);
gtk_grid_attach (GTK_GRID (variations_grid), axis_entry, 2, i, 1, 1);
gtk_grid_attach (GTK_GRID (demo->variations_grid), axis_entry, 2, i, 1, 1);
axis = g_new (Axis, 1);
axis->tag = ax->tag;
axis->adjustment = adjustment;
g_hash_table_add (axes, axis);
g_hash_table_add (demo->axes, axis);
adjustment_changed (adjustment, GTK_ENTRY (axis_entry));
@ -992,8 +1006,6 @@ free_instance (gpointer data)
g_free (instance);
}
static GHashTable *instances;
static void
add_instance (hb_face_t *face,
unsigned int index,
@ -1013,15 +1025,15 @@ add_instance (hb_face_t *face,
instance->name = g_strdup (name);
instance->index = index;
g_hash_table_add (instances, instance);
g_hash_table_add (demo->instances, instance);
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), instance->name);
}
static void
unset_instance (GtkAdjustment *adjustment)
{
if (instance_combo)
gtk_combo_box_set_active (GTK_COMBO_BOX (instance_combo), 0);
if (demo->instance_combo)
gtk_combo_box_set_active (GTK_COMBO_BOX (demo->instance_combo), 0);
}
static void
@ -1044,7 +1056,7 @@ instance_changed (GtkComboBox *combo)
goto out;
ikey.name = text;
instance = g_hash_table_lookup (instances, &ikey);
instance = g_hash_table_lookup (demo->instances, &ikey);
if (!instance)
{
g_print ("did not find instance %s\n", text);
@ -1074,7 +1086,7 @@ instance_changed (GtkComboBox *combo)
value = coords[ai[i].axis_index];
akey.tag = ai[i].tag;
axis = g_hash_table_lookup (axes, &akey);
axis = g_hash_table_lookup (demo->axes, &akey);
if (axis)
{
g_signal_handlers_block_by_func (axis->adjustment, unset_instance, NULL);
@ -1125,9 +1137,9 @@ add_font_plane (int i)
Axis key;
key.tag = MAKE_TAG('w','g','h','t');
weight_axis = g_hash_table_lookup (axes, &key);
weight_axis = g_hash_table_lookup (demo->axes, &key);
key.tag = MAKE_TAG('w','d','t','h');
width_axis = g_hash_table_lookup (axes, &key);
width_axis = g_hash_table_lookup (demo->axes, &key);
if (weight_axis && width_axis)
{
@ -1136,7 +1148,7 @@ add_font_plane (int i)
gtk_widget_set_size_request (plane, 300, 300);
gtk_widget_set_halign (plane, GTK_ALIGN_CENTER);
gtk_grid_attach (GTK_GRID (variations_grid), plane, 0, i, 3, 1);
gtk_grid_attach (GTK_GRID (demo->variations_grid), plane, 0, i, 3, 1);
}
}
@ -1166,13 +1178,13 @@ update_font_variations (void)
unsigned int length;
int i;
while ((child = gtk_widget_get_first_child (variations_grid)))
gtk_grid_remove (GTK_GRID (variations_grid), child);
while ((child = gtk_widget_get_first_child (demo->variations_grid)))
gtk_grid_remove (GTK_GRID (demo->variations_grid), child);
instance_combo = NULL;
demo->instance_combo = NULL;
g_hash_table_remove_all (axes);
g_hash_table_remove_all (instances);
g_hash_table_remove_all (demo->axes);
g_hash_table_remove_all (demo->instances);
pango_font = get_pango_font ();
hb_font = pango_font_get_hb_font (pango_font);
@ -1199,7 +1211,7 @@ update_font_variations (void)
gtk_label_set_xalign (GTK_LABEL (label), 0);
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_BASELINE);
gtk_grid_attach (GTK_GRID (variations_grid), label, 0, -1, 2, 1);
gtk_grid_attach (GTK_GRID (demo->variations_grid), label, 0, -1, 2, 1);
combo = gtk_combo_box_text_new ();
gtk_widget_set_valign (combo, GTK_ALIGN_BASELINE);
@ -1218,9 +1230,9 @@ update_font_variations (void)
}
}
gtk_grid_attach (GTK_GRID (variations_grid), combo, 1, -1, 2, 1);
gtk_grid_attach (GTK_GRID (demo->variations_grid), combo, 1, -1, 2, 1);
g_signal_connect (combo, "changed", G_CALLBACK (instance_changed), NULL);
instance_combo = combo;
demo->instance_combo = combo;
}
for (i = 0; i < n_axes; i++)
@ -1254,12 +1266,12 @@ font_features_reset_features (void)
{
GList *l;
gtk_label_select_region (GTK_LABEL (the_label), 0, 0);
gtk_label_select_region (GTK_LABEL (demo->the_label), 0, 0);
g_list_free_full (ranges, free_range);
ranges = NULL;
g_list_free_full (demo->ranges, free_range);
demo->ranges = NULL;
for (l = feature_items; l; l = l->next)
for (l = demo->feature_items; l; l = l->next)
{
FeatureItem *item = l->data;
@ -1281,9 +1293,9 @@ static char *text;
static void
switch_to_entry (void)
{
text = g_strdup (gtk_editable_get_text (GTK_EDITABLE (the_entry)));
gtk_stack_set_visible_child_name (GTK_STACK (stack), "entry");
gtk_widget_grab_focus (the_entry);
text = g_strdup (gtk_editable_get_text (GTK_EDITABLE (demo->the_entry)));
gtk_stack_set_visible_child_name (GTK_STACK (demo->stack), "entry");
gtk_widget_grab_focus (demo->the_entry);
}
static void
@ -1291,14 +1303,14 @@ switch_to_label (void)
{
g_free (text);
text = NULL;
gtk_stack_set_visible_child_name (GTK_STACK (stack), "label");
gtk_stack_set_visible_child_name (GTK_STACK (demo->stack), "label");
update_display ();
}
G_MODULE_EXPORT void
font_features_toggle_edit (void)
{
if (strcmp (gtk_stack_get_visible_child_name (GTK_STACK (stack)), "label") == 0)
if (strcmp (gtk_stack_get_visible_child_name (GTK_STACK (demo->stack)), "label") == 0)
switch_to_entry ();
else
switch_to_label ();
@ -1307,7 +1319,7 @@ font_features_toggle_edit (void)
G_MODULE_EXPORT void
font_features_stop_edit (void)
{
g_signal_emit_by_name (edit_toggle, "clicked");
g_signal_emit_by_name (demo->edit_toggle, "clicked");
}
static gboolean
@ -1327,8 +1339,6 @@ entry_key_press (GtkEventController *controller,
return GDK_EVENT_PROPAGATE;
}
#define gtk_builder_cscope_add_callback(scope, callback) \
gtk_builder_cscope_add_callback_symbol (GTK_BUILDER_CSCOPE (scope), #callback, G_CALLBACK (callback))
GtkWidget *
do_font_features (GtkWidget *do_widget)
{
@ -1338,7 +1348,6 @@ do_font_features (GtkWidget *do_widget)
{
GtkBuilder *builder;
GtkBuilderScope *scope;
GtkWidget *feature_list;
GtkEventController *controller;
builder = gtk_builder_new ();
@ -1348,132 +1357,84 @@ do_font_features (GtkWidget *do_widget)
gtk_builder_cscope_add_callback (scope, basic_entry_activated);
gtk_builder_set_scope (builder, scope);
demo = g_new0 (FontFeaturesDemo, 1);
gtk_builder_add_from_resource (builder, "/font_features/font_features.ui", NULL);
window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
feature_list = GTK_WIDGET (gtk_builder_get_object (builder, "feature_list"));
the_label = GTK_WIDGET (gtk_builder_get_object (builder, "label"));
settings = GTK_WIDGET (gtk_builder_get_object (builder, "settings"));
description = GTK_WIDGET (gtk_builder_get_object (builder, "description"));
resetbutton = GTK_WIDGET (gtk_builder_get_object (builder, "reset"));
font = GTK_WIDGET (gtk_builder_get_object (builder, "font"));
script_lang = GTK_WIDGET (gtk_builder_get_object (builder, "script_lang"));
stack = GTK_WIDGET (gtk_builder_get_object (builder, "stack"));
the_entry = GTK_WIDGET (gtk_builder_get_object (builder, "entry"));
edit_toggle = GTK_WIDGET (gtk_builder_get_object (builder, "edit_toggle"));
size_entry = GTK_WIDGET (gtk_builder_get_object (builder, "size_entry"));
size_adjustment = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "size_adjustment"));
letterspacing_entry = GTK_WIDGET (gtk_builder_get_object (builder, "letterspacing_entry"));
letterspacing_adjustment = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "letterspacing_adjustment"));
line_height_entry = GTK_WIDGET (gtk_builder_get_object (builder, "line_height_entry"));
line_height_adjustment = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "line_height_adjustment"));
g_object_set_data_full (G_OBJECT (window), "demo", demo, demo_free);
basic_value_changed (size_adjustment, size_entry);
basic_value_changed (letterspacing_adjustment, letterspacing_entry);
basic_value_changed (line_height_adjustment, line_height_entry);
demo->the_label = GTK_WIDGET (gtk_builder_get_object (builder, "label"));
demo->settings = GTK_WIDGET (gtk_builder_get_object (builder, "settings"));
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"));
demo->feature_list = GTK_WIDGET (gtk_builder_get_object (builder, "feature_list"));
demo->stack = GTK_WIDGET (gtk_builder_get_object (builder, "stack"));
demo->the_entry = GTK_WIDGET (gtk_builder_get_object (builder, "entry"));
demo->edit_toggle = GTK_WIDGET (gtk_builder_get_object (builder, "edit_toggle"));
demo->size_entry = GTK_WIDGET (gtk_builder_get_object (builder, "size_entry"));
demo->size_adjustment = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "size_adjustment"));
demo->letterspacing_entry = GTK_WIDGET (gtk_builder_get_object (builder, "letterspacing_entry"));
demo->letterspacing_adjustment = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "letterspacing_adjustment"));
demo->line_height_entry = GTK_WIDGET (gtk_builder_get_object (builder, "line_height_entry"));
demo->line_height_adjustment = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "line_height_adjustment"));
basic_value_changed (demo->size_adjustment, demo->size_entry);
basic_value_changed (demo->letterspacing_adjustment, demo->letterspacing_entry);
basic_value_changed (demo->line_height_adjustment, demo->line_height_entry);
controller = gtk_event_controller_key_new ();
g_object_set_data_full (G_OBJECT (the_entry), "controller", g_object_ref (controller), g_object_unref);
g_signal_connect (controller, "key-pressed", G_CALLBACK (entry_key_press), the_entry);
gtk_widget_add_controller (the_entry, controller);
g_object_set_data_full (G_OBJECT (demo->the_entry), "controller", g_object_ref (controller), g_object_unref);
g_signal_connect (controller, "key-pressed", G_CALLBACK (entry_key_press), demo->the_entry);
gtk_widget_add_controller (demo->the_entry, controller);
add_check_group (feature_list, _("Kerning"), (const char *[]){ "kern", NULL });
add_check_group (feature_list, _("Ligatures"), (const char *[]){ "liga",
"dlig",
"hlig",
"clig",
"rlig", NULL });
add_check_group (feature_list, _("Letter Case"), (const char *[]){ "smcp",
"c2sc",
"pcap",
"c2pc",
"unic",
"cpsp",
"case",NULL });
add_radio_group (feature_list, _("Number Case"), (const char *[]){ "xxxx",
"lnum",
"onum", NULL });
add_radio_group (feature_list, _("Number Spacing"), (const char *[]){ "xxxx",
"pnum",
"tnum", NULL });
add_radio_group (feature_list, _("Fractions"), (const char *[]){ "xxxx",
"frac",
"afrc", NULL });
add_check_group (feature_list, _("Numeric Extras"), (const char *[]){ "zero",
"nalt",
"sinf", NULL });
add_check_group (feature_list, _("Character Alternatives"), (const char *[]){ "swsh",
"cswh",
"locl",
"calt",
"falt",
"hist",
"salt",
"jalt",
"titl",
"rand",
"subs",
"sups",
"ordn",
"ltra",
"ltrm",
"rtla",
"rtlm",
"rclt", NULL });
add_check_group (feature_list, _("Positional Alternatives"), (const char *[]){ "init",
"medi",
"med2",
"fina",
"fin2",
"fin3",
"isol", NULL });
add_check_group (feature_list, _("Width Variants"), (const char *[]){ "fwid",
"hwid",
"halt",
"pwid",
"palt",
"twid",
"qwid", NULL });
add_check_group (feature_list, _("Alternative Stylistic Sets"), (const char *[]){ "ss01",
"ss02",
"ss03",
"ss04",
"ss05",
"ss06",
"ss07",
"ss08",
"ss09",
"ss10",
"ss11",
"ss12",
"ss13",
"ss14",
"ss15",
"ss16",
"ss17",
"ss18",
"ss19",
"ss20", NULL });
add_check_group (feature_list, _("Mathematical"), (const char *[]){ "dtls",
"flac",
"mgrk",
"ssty", NULL });
add_check_group (feature_list, _("Optical Bounds"), (const char *[]){ "opbd",
"lfbd",
"rtbd", NULL });
feature_items = g_list_reverse (feature_items);
add_check_group (demo->feature_list, _("Kerning"),
(const char *[]){ "kern", NULL });
add_check_group (demo->feature_list, _("Ligatures"),
(const char *[]){ "liga", "dlig", "hlig", "clig", "rlig", NULL });
add_check_group (demo->feature_list, _("Letter Case"),
(const char *[]){ "smcp", "c2sc", "pcap", "c2pc", "unic", "cpsp",
"case",NULL });
add_radio_group (demo->feature_list, _("Number Case"),
(const char *[]){ "xxxx", "lnum", "onum", NULL });
add_radio_group (demo->feature_list, _("Number Spacing"),
(const char *[]){ "xxxx", "pnum", "tnum", NULL });
add_radio_group (demo->feature_list, _("Fractions"),
(const char *[]){ "xxxx", "frac", "afrc", NULL });
add_check_group (demo->feature_list, _("Numeric Extras"),
(const char *[]){ "zero", "nalt", "sinf", NULL });
add_check_group (demo->feature_list, _("Character Alternatives"),
(const char *[]){ "swsh", "cswh", "locl", "calt", "falt", "hist",
"salt", "jalt", "titl", "rand", "subs", "sups",
"ordn", "ltra", "ltrm", "rtla", "rtlm", "rclt", NULL });
add_check_group (demo->feature_list, _("Positional Alternatives"),
(const char *[]){ "init", "medi", "med2", "fina", "fin2", "fin3",
"isol", NULL });
add_check_group (demo->feature_list, _("Width Variants"),
(const char *[]){ "fwid", "hwid", "halt", "pwid", "palt", "twid",
"qwid", NULL });
add_check_group (demo->feature_list, _("Alternative Stylistic Sets"),
(const char *[]){ "ss01", "ss02", "ss03", "ss04", "ss05", "ss06",
"ss07", "ss08", "ss09", "ss10", "ss11", "ss12",
"ss13", "ss14", "ss15", "ss16", "ss17", "ss18",
"ss19", "ss20", NULL });
add_check_group (demo->feature_list, _("Mathematical"),
(const char *[]){ "dtls", "flac", "mgrk", "ssty", NULL });
add_check_group (demo->feature_list, _("Optical Bounds"),
(const char *[]){ "opbd", "lfbd", "rtbd", NULL });
demo->feature_items = g_list_reverse (demo->feature_items);
variations_heading = GTK_WIDGET (gtk_builder_get_object (builder, "variations_heading"));
variations_grid = GTK_WIDGET (gtk_builder_get_object (builder, "variations_grid"));
if (instances == NULL)
instances = g_hash_table_new_full (instance_hash, instance_equal, NULL, free_instance);
demo->variations_grid = GTK_WIDGET (gtk_builder_get_object (builder, "variations_grid"));
if (demo->instances == NULL)
demo->instances = g_hash_table_new_full (instance_hash, instance_equal, NULL, free_instance);
else
g_hash_table_remove_all (instances);
g_hash_table_remove_all (demo->instances);
if (axes == NULL)
axes = g_hash_table_new_full (axes_hash, axes_equal, NULL, g_free);
if (demo->axes == NULL)
demo->axes = g_hash_table_new_full (axes_hash, axes_equal, NULL, g_free);
else
g_hash_table_remove_all (axes);
g_hash_table_remove_all (demo->axes);
font_features_font_changed ();