Wire up GSettings: schema authoring, key naming, settings binding to widgets, window state persistence. Use when persisting app settings or window size/state in a GNOME app.
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See how to installReview the instructions the agent will receive before you install.
File: data/org.example.MyApp.gschema.xml
<?xml version="1.0" encoding="UTF-8"?>
<schemalist gettext-domain="myapp">
<schema id="org.example.MyApp" path="/org/example/MyApp/">
<key name="window-width" type="i">
<default>800</default>
<summary>Window width</summary>
</key>
<key name="window-height" type="i">
<default>600</default>
<summary>Window height</summary>
</key>
<key name="window-maximized" type="b">
<default>false</default>
<summary>Window maximized state</summary>
</key>
<key name="dark-mode" type="b">
<default>false</default>
<summary>Use dark theme</summary>
</key>
<key name="font-size" type="i">
<default>12</default>
<summary>Font size in points</summary>
<range min="8" max="32"/>
</key>
</schema>
</schemalist>
Key types: b (bool), i (int), s (string), d (double), as (string array), (ss) (string tuple)
install_data(
'org.example.MyApp.gschema.xml',
install_dir: get_option('datadir') / 'glib-2.0' / 'schemas',
)
gnome.post_install(
glib_compile_schemas: true,
)
C:
GSettings *settings = g_settings_new ("org.example.MyApp");
g_settings_bind (settings, "dark-mode", switch, "active", G_SETTINGS_BIND_DEFAULT);
g_settings_bind (settings, "font-size", spin_button, "value", G_SETTINGS_BIND_DEFAULT);
Python:
from gi.repository import Gio
settings = Gio.Settings.new("org.example.MyApp")
settings.bind("dark-mode", switch, "active", Gio.SettingsBindFlags.DEFAULT)
settings.bind("font-size", spin_button, "value", Gio.SettingsBindFlags.DEFAULT)
Rust:
use gio::Settings;
let settings = Settings::new("org.example.MyApp");
settings.bind("dark-mode", &switch, "active").build();
C:
// Save on close
g_settings_set_int (settings, "window-width", width);
g_settings_set_int (settings, "window-height", height);
g_settings_set_boolean (settings, "window-maximized", maximized);
// Restore on open
gtk_window_set_default_size (window,
g_settings_get_int (settings, "window-width"),
g_settings_get_int (settings, "window-height"));
if (g_settings_get_boolean (settings, "window-maximized"))
gtk_window_maximize (window);
<object class="EditorPreferencesSwitch">
<property name="title" translatable="yes">Display _Line Numbers</property>
<property name="schema-key">show-line-numbers</property>
</object>
The custom widget reads schema-key and binds to GSettings internally.
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