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Use a cheaper way to store settings per display

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This was another very frequent use of qdata. Since we typically
have only one or two display objects, storing the display-settings
association in a simple array is faster than using object data
or a hash table.
This commit is contained in:
Matthias Clasen 2016-05-06 00:21:08 -04:00
parent cca894b912
commit 360a3c1690
1 changed files with 72 additions and 46 deletions
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118
gtk/gtksettings.c
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@ -278,6 +278,13 @@ static GQuark quark_gtk_settings = 0;
static GSList *object_list = NULL;
static guint class_n_properties = 0;
typedef struct {
GdkDisplay *display;
GtkSettings *settings;
} DisplaySettings;
static GArray *display_settings;
G_DEFINE_TYPE_EXTENDED (GtkSettings, gtk_settings, G_TYPE_OBJECT, 0,
G_ADD_PRIVATE (GtkSettings)
@ -1868,6 +1875,66 @@ settings_init_style (GtkSettings *settings)
settings_update_key_theme (settings);
}
static GtkSettings *
gtk_settings_create_for_display (GdkDisplay *display)
{
GtkSettings *settings;
DisplaySettings v;
#ifdef GDK_WINDOWING_QUARTZ
if (GDK_IS_QUARTZ_DISPLAY (display))
settings = g_object_new (GTK_TYPE_SETTINGS,
"gtk-key-theme-name", "Mac",
"gtk-shell-shows-app-menu", TRUE,
"gtk-shell-shows-menubar", TRUE,
NULL);
else
#endif
#ifdef GDK_WINDOWING_BROADWAY
if (GDK_IS_BROADWAY_DISPLAY (display))
settings = g_object_new (GTK_TYPE_SETTINGS,
"gtk-im-module", "broadway",
NULL);
else
#endif
settings = g_object_new (GTK_TYPE_SETTINGS, NULL);
settings->priv->screen = gdk_display_get_default_screen (display);
v.display = display;
v.settings = settings;
g_array_append_val (display_settings, v);
settings_init_style (settings);
settings_update_xsettings (settings);
settings_update_modules (settings);
settings_update_double_click (settings);
settings_update_cursor_theme (settings);
settings_update_resolution (settings);
settings_update_font_options (settings);
return settings;
}
static GtkSettings *
gtk_settings_get_for_display (GdkDisplay *display)
{
DisplaySettings *ds;
int i;
if G_UNLIKELY (display_settings == NULL)
display_settings = g_array_new (FALSE, TRUE, sizeof (DisplaySettings));
ds = (DisplaySettings *)display_settings->data;
for (i = 0; i < display_settings->len; i++)
{
if (ds[i].display == display)
return ds[i].settings;
}
return gtk_settings_create_for_display (display);
}
/**
* gtk_settings_get_for_screen:
* @screen: a #GdkScreen.
@ -1878,53 +1945,12 @@ settings_init_style (GtkSettings *settings)
*
* Since: 2.2
*/
GtkSettings*
GtkSettings *
gtk_settings_get_for_screen (GdkScreen *screen)
{
GtkSettings *settings;
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
settings = g_object_get_qdata (G_OBJECT (screen), quark_gtk_settings);
if (!settings)
{
#ifdef GDK_WINDOWING_QUARTZ
if (GDK_IS_QUARTZ_SCREEN (screen))
{
settings = g_object_new (GTK_TYPE_SETTINGS,
"gtk-key-theme-name", "Mac",
"gtk-shell-shows-app-menu", TRUE,
"gtk-shell-shows-menubar", TRUE,
NULL);
}
else
#endif
#ifdef GDK_WINDOWING_BROADWAY
if (GDK_IS_BROADWAY_DISPLAY (gdk_screen_get_display (screen)))
{
settings = g_object_new (GTK_TYPE_SETTINGS,
"gtk-im-module", "broadway",
NULL);
}
else
#endif
settings = g_object_new (GTK_TYPE_SETTINGS, NULL);
settings->priv->screen = screen;
g_object_set_qdata_full (G_OBJECT (screen),
quark_gtk_settings,
settings,
g_object_unref);
settings_init_style (settings);
settings_update_xsettings (settings);
settings_update_modules (settings);
settings_update_double_click (settings);
settings_update_cursor_theme (settings);
settings_update_resolution (settings);
settings_update_font_options (settings);
}
return settings;
return gtk_settings_get_for_display (gdk_screen_get_display (screen));
}
/**
@ -1939,10 +1965,10 @@ gtk_settings_get_for_screen (GdkScreen *screen)
GtkSettings*
gtk_settings_get_default (void)
{
GdkScreen *screen = gdk_screen_get_default ();
GdkDisplay *display = gdk_display_get_default ();
if (screen)
return gtk_settings_get_for_screen (screen);
if (display)
return gtk_settings_get_for_display (display);
else
return NULL;
}