gtk/examples/application7/exampleappprefs.c
2023-08-04 08:38:00 -04:00

120 lines
3.4 KiB
C

#include <gtk/gtk.h>
#include "exampleapp.h"
#include "exampleappwin.h"
#include "exampleappprefs.h"
struct _ExampleAppPrefs
{
GtkDialog parent;
GSettings *settings;
GtkWidget *font;
GtkWidget *transition;
};
G_DEFINE_TYPE (ExampleAppPrefs, example_app_prefs, GTK_TYPE_DIALOG)
static gboolean
string_to_font_desc (GValue *value,
GVariant *variant,
gpointer user_data)
{
const char *s = g_variant_get_string (variant, NULL);
PangoFontDescription *desc;
desc = pango_font_description_from_string (s);
g_value_take_boxed (value, desc);
return TRUE;
}
static GVariant *
font_desc_to_string (const GValue *value,
const GVariantType *expected_type,
gpointer user_data)
{
PangoFontDescription *desc = g_value_get_boxed (value);
char *s = pango_font_description_to_string (desc);
return g_variant_new_take_string (s);
}
static gboolean
transition_to_pos (GValue *value,
GVariant *variant,
gpointer user_data)
{
const char *s = g_variant_get_string (variant, NULL);
if (strcmp (s, "none") == 0)
g_value_set_uint (value, 0);
else if (strcmp (s, "crossfade") == 0)
g_value_set_uint (value, 1);
else
g_value_set_uint (value, 2);
return TRUE;
}
static GVariant *
pos_to_transition (const GValue *value,
const GVariantType *expected_type,
gpointer user_data)
{
switch (g_value_get_uint (value))
{
case 0: return g_variant_new_string ("none");
case 1: return g_variant_new_string ("crossfade");
case 2: return g_variant_new_string ("slide-left-right");
default: g_assert_not_reached ();
}
}
static void
example_app_prefs_init (ExampleAppPrefs *prefs)
{
gtk_widget_init_template (GTK_WIDGET (prefs));
prefs->settings = g_settings_new ("org.gtk.exampleapp");
g_settings_bind_with_mapping (prefs->settings, "font",
prefs->font, "font-desc",
G_SETTINGS_BIND_DEFAULT,
string_to_font_desc,
font_desc_to_string,
NULL, NULL);
g_settings_bind_with_mapping (prefs->settings, "transition",
prefs->transition, "selected",
G_SETTINGS_BIND_DEFAULT,
transition_to_pos,
pos_to_transition,
NULL, NULL);
}
static void
example_app_prefs_dispose (GObject *object)
{
ExampleAppPrefs *prefs;
prefs = EXAMPLE_APP_PREFS (object);
g_clear_object (&prefs->settings);
G_OBJECT_CLASS (example_app_prefs_parent_class)->dispose (object);
}
static void
example_app_prefs_class_init (ExampleAppPrefsClass *class)
{
G_OBJECT_CLASS (class)->dispose = example_app_prefs_dispose;
gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
"/org/gtk/exampleapp/prefs.ui");
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppPrefs, font);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppPrefs, transition);
}
ExampleAppPrefs *
example_app_prefs_new (ExampleAppWindow *win)
{
return g_object_new (EXAMPLE_APP_PREFS_TYPE, "transient-for", win, "use-header-bar", TRUE, NULL);
}