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Learning_GTK4_tree/tests/testdropdown.c

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/* simple.c
* Copyright (C) 2017 Red Hat, Inc
* Author: Benjamin Otte
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <gtk/gtk.h>
#define STRING_TYPE_HOLDER (string_holder_get_type ())
G_DECLARE_FINAL_TYPE (StringHolder, string_holder, STRING, HOLDER, GObject)
struct _StringHolder {
GObject parent_instance;
char *title;
char *icon;
char *description;
};
G_DEFINE_TYPE (StringHolder, string_holder, G_TYPE_OBJECT);
static void
string_holder_init (StringHolder *holder)
{
}
static void
string_holder_finalize (GObject *object)
{
StringHolder *holder = STRING_HOLDER (object);
g_free (holder->title);
g_free (holder->icon);
g_free (holder->description);
G_OBJECT_CLASS (string_holder_parent_class)->finalize (object);
}
static void
string_holder_class_init (StringHolderClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->finalize = string_holder_finalize;
}
static StringHolder *
string_holder_new (const char *title, const char *icon, const char *description)
{
StringHolder *holder = g_object_new (STRING_TYPE_HOLDER, NULL);
holder->title = g_strdup (title);
holder->icon = g_strdup (icon);
holder->description = g_strdup (description);
return holder;
}
static void
strings_setup_item_single_line (GtkSignalListItemFactory *factory,
GtkListItem *item)
{
GtkWidget *box, *image, *title;
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
image = gtk_image_new ();
title = gtk_label_new ("");
gtk_label_set_xalign (GTK_LABEL (title), 0.0);
gtk_box_append (GTK_BOX (box), image);
gtk_box_append (GTK_BOX (box), title);
g_object_set_data (G_OBJECT (item), "title", title);
g_object_set_data (G_OBJECT (item), "image", image);
gtk_list_item_set_child (item, box);
}
static void
strings_setup_item_full (GtkSignalListItemFactory *factory,
GtkListItem *item)
{
GtkWidget *box, *box2, *image, *title, *description;
image = gtk_image_new ();
title = gtk_label_new ("");
gtk_label_set_xalign (GTK_LABEL (title), 0.0);
description = gtk_label_new ("");
gtk_label_set_xalign (GTK_LABEL (description), 0.0);
gtk_widget_add_css_class (description, "dim-label");
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
box2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_box_append (GTK_BOX (box), image);
gtk_box_append (GTK_BOX (box), box2);
gtk_box_append (GTK_BOX (box2), title);
gtk_box_append (GTK_BOX (box2), description);
g_object_set_data (G_OBJECT (item), "title", title);
g_object_set_data (G_OBJECT (item), "image", image);
g_object_set_data (G_OBJECT (item), "description", description);
gtk_list_item_set_child (item, box);
}
static void
strings_bind_item (GtkSignalListItemFactory *factory,
GtkListItem *item)
{
GtkWidget *image, *title, *description;
StringHolder *holder;
holder = gtk_list_item_get_item (item);
title = g_object_get_data (G_OBJECT (item), "title");
image = g_object_get_data (G_OBJECT (item), "image");
description = g_object_get_data (G_OBJECT (item), "description");
gtk_label_set_label (GTK_LABEL (title), holder->title);
if (image)
{
gtk_image_set_from_icon_name (GTK_IMAGE (image), holder->icon);
gtk_widget_set_visible (image, holder->icon != NULL);
}
if (description)
{
gtk_label_set_label (GTK_LABEL (description), holder->description);
gtk_widget_set_visible (description , holder->description != NULL);
}
}
static GtkListItemFactory *
strings_factory_new (gboolean full)
{
GtkListItemFactory *factory;
factory = gtk_signal_list_item_factory_new ();
if (full)
g_signal_connect (factory, "setup", G_CALLBACK (strings_setup_item_full), NULL);
else
g_signal_connect (factory, "setup", G_CALLBACK (strings_setup_item_single_line), NULL);
g_signal_connect (factory, "bind", G_CALLBACK (strings_bind_item), NULL);
return factory;
}
static GListModel *
strings_model_new (const char *const *titles,
const char *const *icons,
const char *const *descriptions)
{
GListStore *store;
int i;
store = g_list_store_new (STRING_TYPE_HOLDER);
for (i = 0; titles[i]; i++)
{
StringHolder *holder = string_holder_new (titles[i],
icons ? icons[i] : NULL,
descriptions ? descriptions[i] : NULL);
g_list_store_append (store, holder);
g_object_unref (holder);
}
return G_LIST_MODEL (store);
}
static GtkWidget *
drop_down_new_from_strings (const char *const *titles,
const char *const *icons,
const char *const *descriptions)
{
GtkWidget *widget;
GListModel *model;
GtkListItemFactory *factory;
GtkListItemFactory *list_factory;
g_return_val_if_fail (titles != NULL, NULL);
g_return_val_if_fail (icons == NULL || g_strv_length ((char **)icons) == g_strv_length ((char **)titles), NULL);
g_return_val_if_fail (descriptions == NULL || g_strv_length ((char **)icons) == g_strv_length ((char **)descriptions), NULL);
model = strings_model_new (titles, icons, descriptions);
factory = strings_factory_new (FALSE);
if (icons != NULL || descriptions != NULL)
list_factory = strings_factory_new (TRUE);
else
list_factory = NULL;
widget = g_object_new (GTK_TYPE_DROP_DOWN,
"model", model,
"factory", factory,
"list-factory", list_factory,
NULL);
g_object_unref (model);
g_object_unref (factory);
if (list_factory)
g_object_unref (list_factory);
return widget;
}
static char *
get_family_name (gpointer item)
{
return g_strdup (pango_font_family_get_name (PANGO_FONT_FAMILY (item)));
}
static char *
get_title (gpointer item)
{
return g_strdup (STRING_HOLDER (item)->title);
}
static gboolean
quit_cb (GtkWindow *window,
gpointer data)
{
*((gboolean*)data) = TRUE;
g_main_context_wakeup (NULL);
return TRUE;
}
#define GTK_TYPE_STRING_PAIR (gtk_string_pair_get_type ())
G_DECLARE_FINAL_TYPE (GtkStringPair, gtk_string_pair, GTK, STRING_PAIR, GObject)
struct _GtkStringPair {
GObject parent_instance;
char *id;
char *string;
};
enum {
PROP_ID = 1,
PROP_STRING,
PROP_NUM_PROPERTIES
};
G_DEFINE_TYPE (GtkStringPair, gtk_string_pair, G_TYPE_OBJECT);
static void
gtk_string_pair_init (GtkStringPair *pair)
{
}
static void
gtk_string_pair_finalize (GObject *object)
{
GtkStringPair *pair = GTK_STRING_PAIR (object);
g_free (pair->id);
g_free (pair->string);
G_OBJECT_CLASS (gtk_string_pair_parent_class)->finalize (object);
}
static void
gtk_string_pair_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GtkStringPair *pair = GTK_STRING_PAIR (object);
switch (property_id)
{
case PROP_STRING:
g_free (pair->string);
pair->string = g_value_dup_string (value);
break;
case PROP_ID:
g_free (pair->id);
pair->id = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gtk_string_pair_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GtkStringPair *pair = GTK_STRING_PAIR (object);
switch (property_id)
{
case PROP_STRING:
g_value_set_string (value, pair->string);
break;
case PROP_ID:
g_value_set_string (value, pair->id);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gtk_string_pair_class_init (GtkStringPairClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GParamSpec *pspec;
object_class->finalize = gtk_string_pair_finalize;
object_class->set_property = gtk_string_pair_set_property;
object_class->get_property = gtk_string_pair_get_property;
pspec = g_param_spec_string ("string", "String", "String",
NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
g_object_class_install_property (object_class, PROP_STRING, pspec);
pspec = g_param_spec_string ("id", "ID", "ID",
NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
g_object_class_install_property (object_class, PROP_ID, pspec);
}
static GtkStringPair *
gtk_string_pair_new (const char *id,
const char *string)
{
return g_object_new (GTK_TYPE_STRING_PAIR,
"id", id,
"string", string,
NULL);
}
static const char *
gtk_string_pair_get_string (GtkStringPair *pair)
{
return pair->string;
}
static const char *
gtk_string_pair_get_id (GtkStringPair *pair)
{
return pair->id;
}
static void
setup_no_item (GtkSignalListItemFactory *factory,
GtkListItem *item)
{
}
static void
setup_list_item (GtkSignalListItemFactory *factory,
GtkListItem *item)
{
GtkWidget *label;
label = gtk_label_new ("");
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_list_item_set_child (item, label);
}
static void
bind_list_item (GtkSignalListItemFactory *factory,
GtkListItem *item)
{
GtkStringPair *pair;
GtkWidget *label;
pair = gtk_list_item_get_item (item);
label = gtk_list_item_get_child (item);
gtk_label_set_text (GTK_LABEL (label), gtk_string_pair_get_string (pair));
}
static void
selected_changed (GtkDropDown *dropdown,
GParamSpec *pspec,
gpointer data)
{
GListModel *model;
guint selected;
GtkStringPair *pair;
model = gtk_drop_down_get_model (dropdown);
selected = gtk_drop_down_get_selected (dropdown);
pair = g_list_model_get_item (model, selected);
g_print ("selected %s\n", gtk_string_pair_get_id (pair));
g_object_unref (pair);
}
static void
selected_changed2 (GtkDropDown *dropdown,
GParamSpec *pspec,
gpointer data)
{
GListModel *model;
guint selected;
GtkStringPair *pair;
GtkWidget *entry = data;
model = gtk_drop_down_get_model (dropdown);
selected = gtk_drop_down_get_selected (dropdown);
pair = g_list_model_get_item (model, selected);
gtk_editable_set_text (GTK_EDITABLE (entry), gtk_string_pair_get_string (pair));
g_object_unref (pair);
}
int
main (int argc, char *argv[])
{
GtkWidget *window, *button, *box, *spin, *check;
GListModel *model;
GtkExpression *expression;
const char * const times[] = { "1 minute", "2 minutes", "5 minutes", "20 minutes", NULL };
const char * const many_times[] = {
"1 minute", "2 minutes", "5 minutes", "10 minutes", "15 minutes", "20 minutes",
"25 minutes", "30 minutes", "35 minutes", "40 minutes", "45 minutes", "50 minutes",
"55 minutes", "1 hour", "2 hours", "3 hours", "5 hours", "6 hours", "7 hours",
"8 hours", "9 hours", "10 hours", "11 hours", "12 hours", NULL
};
const char * const device_titles[] = { "Digital Output", "Headphones", "Digital Output", "Analog Output", NULL };
const char * const device_icons[] = { "audio-card-symbolic", "audio-headphones-symbolic", "audio-card-symbolic", "audio-card-symbolic", NULL };
const char * const device_descriptions[] = {
"Built-in Audio", "Built-in audio", "Thinkpad Tunderbolt 3 Dock USB Audio", "Thinkpad Tunderbolt 3 Dock USB Audio", NULL
};
gboolean quit = FALSE;
GListStore *store;
GtkListItemFactory *factory;
GtkWidget *entry;
GtkWidget *hbox;
gtk_init ();
window = gtk_window_new ();
gtk_window_set_title (GTK_WINDOW (window), "hello world");
gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
g_signal_connect (window, "close-request", G_CALLBACK (quit_cb), &quit);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
gtk_widget_set_margin_start (box, 10);
gtk_widget_set_margin_end (box, 10);
gtk_widget_set_margin_top (box, 10);
gtk_widget_set_margin_bottom (box, 10);
gtk_window_set_child (GTK_WINDOW (window), box);
button = gtk_drop_down_new (NULL, NULL);
model = G_LIST_MODEL (pango_cairo_font_map_get_default ());
gtk_drop_down_set_model (GTK_DROP_DOWN (button), model);
gtk_drop_down_set_selected (GTK_DROP_DOWN (button), 0);
expression = gtk_cclosure_expression_new (G_TYPE_STRING, NULL,
0, NULL,
(GCallback)get_family_name,
NULL, NULL);
gtk_drop_down_set_expression (GTK_DROP_DOWN (button), expression);
gtk_expression_unref (expression);
gtk_box_append (GTK_BOX (box), button);
spin = gtk_spin_button_new_with_range (-1, g_list_model_get_n_items (G_LIST_MODEL (model)), 1);
gtk_widget_set_halign (spin, GTK_ALIGN_START);
g_object_bind_property (button, "selected", spin, "value", G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL);
gtk_box_append (GTK_BOX (box), spin);
check = gtk_check_button_new_with_label ("Enable search");
g_object_bind_property (button, "enable-search", check, "active", G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL);
gtk_box_append (GTK_BOX (box), check);
g_object_unref (model);
button = drop_down_new_from_strings (times, NULL, NULL);
gtk_box_append (GTK_BOX (box), button);
button = drop_down_new_from_strings (many_times, NULL, NULL);
gtk_box_append (GTK_BOX (box), button);
button = drop_down_new_from_strings (many_times, NULL, NULL);
gtk_drop_down_set_enable_search (GTK_DROP_DOWN (button), TRUE);
expression = gtk_cclosure_expression_new (G_TYPE_STRING, NULL,
0, NULL,
(GCallback)get_title,
NULL, NULL);
gtk_drop_down_set_expression (GTK_DROP_DOWN (button), expression);
gtk_expression_unref (expression);
gtk_box_append (GTK_BOX (box), button);
button = drop_down_new_from_strings (device_titles, device_icons, device_descriptions);
gtk_box_append (GTK_BOX (box), button);
button = gtk_drop_down_new (NULL, NULL);
store = g_list_store_new (GTK_TYPE_STRING_PAIR);
g_list_store_append (store, gtk_string_pair_new ("1", "One"));
g_list_store_append (store, gtk_string_pair_new ("2", "Two"));
g_list_store_append (store, gtk_string_pair_new ("2.5", "Two ½"));
g_list_store_append (store, gtk_string_pair_new ("3", "Three"));
gtk_drop_down_set_model (GTK_DROP_DOWN (button), G_LIST_MODEL (store));
factory = gtk_signal_list_item_factory_new ();
g_signal_connect (factory, "setup", G_CALLBACK (setup_list_item), NULL);
g_signal_connect (factory, "bind", G_CALLBACK (bind_list_item), NULL);
gtk_drop_down_set_factory (GTK_DROP_DOWN (button), factory);
g_object_unref (factory);
g_signal_connect (button, "notify::selected", G_CALLBACK (selected_changed), NULL);
gtk_box_append (GTK_BOX (box), button);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_widget_add_css_class (hbox, "linked");
entry = gtk_entry_new ();
button = gtk_drop_down_new (NULL, NULL);
gtk_drop_down_set_model (GTK_DROP_DOWN (button), G_LIST_MODEL (store));
factory = gtk_signal_list_item_factory_new ();
g_signal_connect (factory, "setup", G_CALLBACK (setup_no_item), NULL);
gtk_drop_down_set_factory (GTK_DROP_DOWN (button), factory);
g_object_unref (factory);
factory = gtk_signal_list_item_factory_new ();
g_signal_connect (factory, "setup", G_CALLBACK (setup_list_item), NULL);
g_signal_connect (factory, "bind", G_CALLBACK (bind_list_item), NULL);
gtk_drop_down_set_list_factory (GTK_DROP_DOWN (button), factory);
g_object_unref (factory);
g_signal_connect (button, "notify::selected", G_CALLBACK (selected_changed2), entry);
gtk_box_append (GTK_BOX (hbox), entry);
gtk_box_append (GTK_BOX (hbox), button);
gtk_box_append (GTK_BOX (box), hbox);
g_object_unref (store);
gtk_window_present (GTK_WINDOW (window));
while (!quit)
g_main_context_iteration (NULL, TRUE);
return 0;
}
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