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/* Lists/Characters
*
* This demo shows a multi-column representation of some parts
* of the Unicode Character Database, or UCD.
*
* The dataset used here has 33 796 items.
*/
#include <gtk/gtk.h>
#include "script-names.h"
#include "unicode-names.h"
#define UCD_TYPE_ITEM (ucd_item_get_type ())
G_DECLARE_FINAL_TYPE (UcdItem, ucd_item, UCD, ITEM, GObject)
struct _UcdItem
{
GObject parent_instance;
gunichar codepoint;
const char *name;
};
struct _UcdItemClass
{
GObjectClass parent_class;
};
G_DEFINE_TYPE (UcdItem, ucd_item, G_TYPE_OBJECT)
static void
ucd_item_init (UcdItem *item)
{
}
static void
ucd_item_class_init (UcdItemClass *class)
{
}
static UcdItem *
ucd_item_new (gunichar codepoint,
const char *name)
{
UcdItem *item;
item = g_object_new (UCD_TYPE_ITEM, NULL);
item->codepoint = codepoint;
item->name = name;
return item;
}
static gunichar
ucd_item_get_codepoint (UcdItem *item)
{
return item->codepoint;
}
static const char *
ucd_item_get_name (UcdItem *item)
{
return item->name;
}
static GListModel *
ucd_model_new (void)
{
GBytes *bytes;
GVariant *v;
GVariantIter *iter;
GListStore *store;
guint u;
char *name;
bytes = g_resources_lookup_data ("/listview_ucd_data/ucdnames.data", 0, NULL);
v = g_variant_ref_sink (g_variant_new_from_bytes (G_VARIANT_TYPE ("a(us)"), bytes, TRUE));
iter = g_variant_iter_new (v);
store = g_list_store_new (G_TYPE_OBJECT);
while (g_variant_iter_next (iter, "(u&s)", &u, &name))
{
if (u == 0)
continue;
UcdItem *item = ucd_item_new (u, name);
g_list_store_append (store, item);
g_object_unref (item);
}
g_variant_iter_free (iter);
g_variant_unref (v);
g_bytes_unref (bytes);
return G_LIST_MODEL (store);
}
static void
setup_centered_label (GtkSignalListItemFactory *factory,
GObject *listitem)
{
GtkWidget *label;
label = gtk_label_new ("");
gtk_list_item_set_child (GTK_LIST_ITEM (listitem), label);
}
static void
setup_label (GtkSignalListItemFactory *factory,
GObject *listitem)
{
GtkWidget *label;
label = gtk_label_new ("");
gtk_label_set_xalign (GTK_LABEL (label), 0);
gtk_list_item_set_child (GTK_LIST_ITEM (listitem), label);
}
static void
setup_ellipsizing_label (GtkSignalListItemFactory *factory,
GObject *listitem)
{
GtkWidget *label;
label = gtk_label_new ("");
gtk_label_set_xalign (GTK_LABEL (label), 0);
gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_END);
gtk_label_set_width_chars (GTK_LABEL (label), 20);
gtk_list_item_set_child (GTK_LIST_ITEM (listitem), label);
}
static void
bind_codepoint (GtkSignalListItemFactory *factory,
GObject *listitem)
{
GtkWidget *label;
GObject *item;
gunichar codepoint;
char buffer[16] = { 0, };
label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
codepoint = ucd_item_get_codepoint (UCD_ITEM (item));
g_snprintf (buffer, 10, "%#06x", codepoint);
gtk_label_set_label (GTK_LABEL (label), buffer);
}
static void
bind_char (GtkSignalListItemFactory *factory,
GObject *listitem)
{
GtkWidget *label;
GObject *item;
gunichar codepoint;
char buffer[16] = { 0, };
label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
codepoint = ucd_item_get_codepoint (UCD_ITEM (item));
if (g_unichar_isprint (codepoint))
g_unichar_to_utf8 (codepoint, buffer);
gtk_label_set_label (GTK_LABEL (label), buffer);
}
static void
bind_name (GtkSignalListItemFactory *factory,
GObject *listitem)
{
GtkWidget *label;
GObject *item;
const char *name;
label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
name = ucd_item_get_name (UCD_ITEM (item));
gtk_label_set_label (GTK_LABEL (label), name);
}
static void
bind_type (GtkSignalListItemFactory *factory,
GObject *listitem)
{
GtkWidget *label;
GObject *item;
gunichar codepoint;
label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
codepoint = ucd_item_get_codepoint (UCD_ITEM (item));
gtk_label_set_label (GTK_LABEL (label), get_unicode_type_name (g_unichar_type (codepoint)));
}
static void
bind_break_type (GtkSignalListItemFactory *factory,
GObject *listitem)
{
GtkWidget *label;
GObject *item;
gunichar codepoint;
label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
codepoint = ucd_item_get_codepoint (UCD_ITEM (item));
gtk_label_set_label (GTK_LABEL (label), get_break_type_name (g_unichar_break_type (codepoint)));
}
static void
bind_combining_class (GtkSignalListItemFactory *factory,
GObject *listitem)
{
GtkWidget *label;
GObject *item;
gunichar codepoint;
label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
codepoint = ucd_item_get_codepoint (UCD_ITEM (item));
gtk_label_set_label (GTK_LABEL (label), get_combining_class_name (g_unichar_combining_class (codepoint)));
}
static void
bind_script (GtkSignalListItemFactory *factory,
GObject *listitem)
{
GtkWidget *label;
GObject *item;
gunichar codepoint;
GUnicodeScript script;
label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
codepoint = ucd_item_get_codepoint (UCD_ITEM (item));
script = g_unichar_get_script (codepoint);
gtk_label_set_label (GTK_LABEL (label), get_script_name (script));
}
static void
selection_changed (GObject *object,
GParamSpec *pspec,
GtkWidget *label)
{
UcdItem *item;
guint codepoint;
char buffer[16] = { 0, };
item = gtk_single_selection_get_selected_item (GTK_SINGLE_SELECTION (object));
codepoint = ucd_item_get_codepoint (item);
if (g_unichar_isprint (codepoint))
g_unichar_to_utf8 (codepoint, buffer);
gtk_label_set_label (GTK_LABEL (label), buffer);
}
GtkWidget *
create_ucd_view (GtkWidget *label)
{
GtkWidget *cv;
GListModel *ucd_model;
GtkSingleSelection *selection;
GtkListItemFactory *factory;
GtkColumnViewColumn *column;
ucd_model = ucd_model_new ();
selection = gtk_single_selection_new (ucd_model);
gtk_single_selection_set_autoselect (selection, TRUE);
gtk_single_selection_set_can_unselect (selection, FALSE);
if (label)
g_signal_connect (selection, "notify::selected", G_CALLBACK (selection_changed), label);
cv = gtk_column_view_new (GTK_SELECTION_MODEL (selection));
gtk_column_view_set_show_column_separators (GTK_COLUMN_VIEW (cv), TRUE);
factory = gtk_signal_list_item_factory_new ();
g_signal_connect (factory, "setup", G_CALLBACK (setup_centered_label), NULL);
g_signal_connect (factory, "bind", G_CALLBACK (bind_codepoint), NULL);
column = gtk_column_view_column_new ("Codepoint", factory);
gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
g_object_unref (column);
factory = gtk_signal_list_item_factory_new ();
g_signal_connect (factory, "setup", G_CALLBACK (setup_centered_label), NULL);
g_signal_connect (factory, "bind", G_CALLBACK (bind_char), NULL);
column = gtk_column_view_column_new ("Char", factory);
gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
g_object_unref (column);
factory = gtk_signal_list_item_factory_new ();
g_signal_connect (factory, "setup", G_CALLBACK (setup_ellipsizing_label), NULL);
g_signal_connect (factory, "bind", G_CALLBACK (bind_name), NULL);
column = gtk_column_view_column_new ("Name", factory);
gtk_column_view_column_set_resizable (column, TRUE);
gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
g_object_unref (column);
factory = gtk_signal_list_item_factory_new ();
g_signal_connect (factory, "setup", G_CALLBACK (setup_ellipsizing_label), NULL);
g_signal_connect (factory, "bind", G_CALLBACK (bind_type), NULL);
column = gtk_column_view_column_new ("Type", factory);
gtk_column_view_column_set_resizable (column, TRUE);
gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
g_object_unref (column);
factory = gtk_signal_list_item_factory_new ();
g_signal_connect (factory, "setup", G_CALLBACK (setup_ellipsizing_label), NULL);
g_signal_connect (factory, "bind", G_CALLBACK (bind_break_type), NULL);
column = gtk_column_view_column_new ("Break Type", factory);
gtk_column_view_column_set_resizable (column, TRUE);
gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
g_object_unref (column);
factory = gtk_signal_list_item_factory_new ();
g_signal_connect (factory, "setup", G_CALLBACK (setup_label), NULL);
g_signal_connect (factory, "bind", G_CALLBACK (bind_combining_class), NULL);
column = gtk_column_view_column_new ("Combining Class", factory);
gtk_column_view_column_set_resizable (column, TRUE);
gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
g_object_unref (column);
factory = gtk_signal_list_item_factory_new ();
g_signal_connect (factory, "setup", G_CALLBACK (setup_label), NULL);
g_signal_connect (factory, "bind", G_CALLBACK (bind_script), NULL);
column = gtk_column_view_column_new ("Script", factory);
gtk_column_view_column_set_resizable (column, TRUE);
gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
g_object_unref (column);
return cv;
}
static GtkWidget *window;
GtkWidget *
do_listview_ucd (GtkWidget *do_widget)
{
if (window == NULL)
{
GtkWidget *listview, *sw;
GtkWidget *box, *label;
GtkCssProvider *provider;
window = gtk_window_new ();
gtk_window_set_default_size (GTK_WINDOW (window), 800, 400);
gtk_window_set_title (GTK_WINDOW (window), "Characters");
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *) &window);
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
label = gtk_label_new ("");
gtk_label_set_width_chars (GTK_LABEL (label), 2);
gtk_widget_add_css_class (label, "enormous");
provider = gtk_css_provider_new ();
gtk_css_provider_load_from_data (provider, "label.enormous { font-size: 80px; }", -1);
gtk_style_context_add_provider (gtk_widget_get_style_context (label), GTK_STYLE_PROVIDER (provider), 800);
gtk_widget_set_hexpand (label, TRUE);
gtk_box_append (GTK_BOX (box), label);
sw = gtk_scrolled_window_new ();
gtk_scrolled_window_set_propagate_natural_width (GTK_SCROLLED_WINDOW (sw), TRUE);
listview = create_ucd_view (label);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), listview);
gtk_box_prepend (GTK_BOX (box), sw);
gtk_window_set_child (GTK_WINDOW (window), box);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}
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