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gsd-xsettings-manager.c
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gsd-xsettings-manager.c
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
*
* Copyright (C) 2007 Rodrigo Moya
* Copyright (C) 2007 William Jon McCann <mccann@jhu.edu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include <sys/types.h>
#include <sys/wait.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <time.h>
#include <X11/Xatom.h>
#include <glib.h>
#include <glib/gi18n.h>
#include <gdk/gdk.h>
#include <gdk/gdkx.h>
#include <gtk/gtk.h>
#include "gnome-settings-profile.h"
#include "gsd-enums.h"
#include "gsd-xsettings-manager.h"
#include "gsd-xsettings-gtk.h"
#include "xsettings-manager.h"
#include "fc-monitor.h"
#include "gsd-remote-display-manager.h"
#include "wm-button-layout-translation.h"
#define MOUSE_SETTINGS_SCHEMA "org.gnome.settings-daemon.peripherals.mouse"
#define BACKGROUND_SETTINGS_SCHEMA "org.gnome.desktop.background"
#define INTERFACE_SETTINGS_SCHEMA "org.gnome.desktop.interface"
#define SOUND_SETTINGS_SCHEMA "org.gnome.desktop.sound"
#define PRIVACY_SETTINGS_SCHEMA "org.gnome.desktop.privacy"
#define WM_SETTINGS_SCHEMA "org.gnome.desktop.wm.preferences"
#define A11Y_SCHEMA "org.gnome.desktop.a11y"
#define CLASSIC_WM_SETTINGS_SCHEMA "org.gnome.shell.extensions.classic-overrides"
#define XSETTINGS_PLUGIN_SCHEMA "org.gnome.settings-daemon.plugins.xsettings"
#define XSETTINGS_OVERRIDE_KEY "overrides"
#define GTK_MODULES_DISABLED_KEY "disabled-gtk-modules"
#define GTK_MODULES_ENABLED_KEY "enabled-gtk-modules"
#define TEXT_SCALING_FACTOR_KEY "text-scaling-factor"
#define CURSOR_SIZE_KEY "cursor-size"
#define CURSOR_THEME_KEY "cursor-theme"
#define FONT_ANTIALIASING_KEY "antialiasing"
#define FONT_HINTING_KEY "hinting"
#define FONT_RGBA_ORDER_KEY "rgba-order"
#define GTK_SETTINGS_DBUS_PATH "/org/gtk/Settings"
#define GTK_SETTINGS_DBUS_NAME "org.gtk.Settings"
static const gchar introspection_xml[] =
"<node name='/org/gtk/Settings'>"
" <interface name='org.gtk.Settings'>"
" <property name='FontconfigTimestamp' type='x' access='read'/>"
" <property name='Modules' type='s' access='read'/>"
" <property name='EnableAnimations' type='b' access='read'/>"
" </interface>"
"</node>";
/* As we cannot rely on the X server giving us good DPI information, and
* that we don't want multi-monitor screens to have different DPIs (thus
* different text sizes), we'll hard-code the value of the DPI
*
* See also:
* https://bugzilla.novell.com/show_bug.cgi?id=217790•
* https://bugzilla.gnome.org/show_bug.cgi?id=643704
*
* http://lists.fedoraproject.org/pipermail/devel/2011-October/157671.html
* Why EDID is not trustworthy for DPI
* Adam Jackson ajax at redhat.com
* Tue Oct 4 17:54:57 UTC 2011
*
* Previous message: GNOME 3 - font point sizes now scaled?
* Next message: Why EDID is not trustworthy for DPI
* Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
*
* On Tue, 2011-10-04 at 11:46 -0400, Kaleb S. KEITHLEY wrote:
*
* > Grovelling around in the F15 xorg-server sources and reviewing the Xorg
* > log file on my F15 box, I see, with _modern hardware_ at least, that we
* > do have the monitor geometry available from DDC or EDIC, and obviously
* > it is trivial to compute the actual, correct DPI for each screen.
*
* I am clearly going to have to explain this one more time, forever.
* Let's see if I can't write it authoritatively once and simply answer
* with a URL from here out. (As always, use of the second person "you"
* herein is plural, not singular.)
*
* EDID does not reliably give you the size of the display.
*
* Base EDID has at least two different places where you can give a
* physical size (before considering extensions that aren't widely deployed
* so whatever). The first is a global property, measured in centimeters,
* of the physical size of the glass. The second is attached to your (zero
* or more) detailed timing specifications, and reflects the size of the
* mode, in millimeters.
*
* So, how does this screw you?
*
* a) Glass size is too coarse. On a large display that cm roundoff isn't
* a big deal, but on subnotebooks it's a different game. The 11" MBA is
* 25.68x14.44 cm, so that gives you a range of 52.54-54.64 dpcm horizontal
* and 51.20-54.86 dpcm vertical (133.4-138.8 dpi h and 130.0-139.3 dpi v).
* Which is optimistic, because that's doing the math forward from knowing
* the actual size, and you as the EDID parser can't know which way the
* manufacturer rounded.
*
* b) Glass size need not be non-zero. This is in fact the usual case for
* projectors, which don't have a fixed display size since it's a function
* of how far away the wall is from the lens.
*
* c) Glass size could be partially non-zero. Yes, really. EDID 1.4
* defines a method of using these two bytes to encode aspect ratio, where
* if vertical size is 0 then the aspect ratio is computed as (horizontal
* value + 99) / 100 in portrait mode (and the obvious reverse thing if
* horizontal is zero). Admittedly, unlike every other item in this list,
* I've never seen this in the wild. But it's legal.
*
* d) Glass size could be a direct encoding of the aspect ratio. Base EDID
* doesn't condone this behaviour, but the CEA spec (to which all HDMI
* monitors must conform) does allow-but-not-require it, which means your
* 1920x1080 TV could claim to be 16 "cm" by 9 "cm". So of course that's
* what TV manufacturers do because that way they don't have to modify the
* EDID info when physical construction changes, and that's cheaper.
*
* e) You could use mode size to get size in millimeters, but you might not
* have any detailed timings.
*
* f) You could use mode size, but mode size is explicitly _not_ glass
* size. It's the size that the display chooses to present that mode.
* Sometimes those are the same, and sometimes they're not. You could be
* scaled or {letter,pillar}boxed, and that's not necessarily something you
* can control from the host side.
*
* g) You could use mode size, but it could be an encoded aspect ratio, as
* in case d above, because CEA says that's okay.
*
* h) You could use mode size, but it could be the aspect ratio from case d
* multiplied by 10 in each direction (because, of course, you gave size in
* centimeters and so your authoring tool just multiplied it up).
*
* i) Any or all of the above could be complete and utter garbage, because
* - and I really, really need you to understand this - there is no
* requirements program for any commercial OS or industry standard that
* requires honesty here, as far as I'm aware. There is every incentive
* for there to _never_ be one, because it would make the manufacturing
* process more expensive.
*
* So from this point the suggestion is usually "well come up with some
* heuristic to make a good guess assuming there's some correlation between
* the various numbers you're given". I have in fact written heuristics
* for this, and they're in your kernel and your X server, and they still
* encounter a huge number of cases where we simply _cannot_ know from EDID
* anything like a physical size, because - to pick only one example - the
* consumer electronics industry are cheap bastards, because you the
* consumer demanded that they be cheap.
*
* And then your only recourse is to an external database, and now you're
* up the creek again because the identifying information here is a
* vendor/model/serial tuple, and the vendor can and does change physical
* construction without changing model number. Now you get to play the
* guessing game of how big the serial number range is for each subvariant,
* assuming they bothered to encode a serial number - and they didn't. Or,
* if they bothered to encode week/year of manufacturer correctly - and
* they didn't - which weeks meant which models. And then you still have
* to go out and buy one of every TV at Fry's, and that covers you for one
* market, for three months.
*
* If someone wants to write something better, please, by all means. If
* it's kernel code, send it to dri-devel at lists.freedesktop.org and cc me
* and I will happily review it. Likewise xorg-devel@ for X server
* changes.
*
* I gently suggest that doing so is a waste of time.
*
* But if there's one thing free software has taught me, it's that you can
* not tell people something is a bad idea and have any expectation they
* will believe you.
*
* > Obviously in a multi-screen set-up using Xinerama this has the potential
* > to be a Hard Problem if the monitors differ greatly in their DPI.
* >
* > If the major resistance is over what to do with older hardware that
* > doesn't have this data available, then yes, punt; use a hard-coded
* > default. Likewise, if the two monitors really differ greatly, then punt.
*
* I'm going to limit myself to observing that "greatly" is a matter of
* opinion, and that in order to be really useful you'd need some way of
* communicating "I punted" to the desktop.
*
* Beyond that, sure, pick a heuristic, accept that it's going to be
* insufficient for someone, and then sit back and wait to get
* second-guessed on it over and over.
*
* > And it wouldn't be so hard to to add something like -dpi:0, -dpi:1,
* > -dpi:2 command line options to specify per-screen dpi. I kinda thought I
* > did that a long, long time ago, but maybe I only thought about doing it
* > and never actually got around to it.
*
* The RANDR extension as of version 1.2 does allow you to override
* physical size on a per-output basis at runtime. We even try pretty hard
* to set them as honestly as we can up front. The 96dpi thing people
* complain about is from the per-screen info, which is simply a default
* because of all the tl;dr above; because you have N outputs per screen
* which means a single number is in general useless; and because there is
* no way to refresh the per-screen info at runtime, as it's only ever sent
* in the initial connection handshake.
*
* - ajax
*
*/
#define DPI_FALLBACK 96
typedef struct _TranslationEntry TranslationEntry;
typedef void (* TranslationFunc) (GsdXSettingsManager *manager,
TranslationEntry *trans,
GVariant *value);
struct _TranslationEntry {
const char *gsettings_schema;
const char *gsettings_key;
const char *xsetting_name;
TranslationFunc translate;
};
typedef struct _FixedEntry FixedEntry;
typedef void (* FixedFunc) (GsdXSettingsManager *manager,
FixedEntry *fixed);
typedef union {
const char *str;
int num;
} FixedEntryValue;
struct _FixedEntry {
const char *xsetting_name;
FixedFunc func;
FixedEntryValue val;
};
struct _GsdXSettingsManager
{
GObject parent;
guint start_idle_id;
XSettingsManager *manager;
GHashTable *settings;
GSettings *plugin_settings;
FcMonitor *fontconfig_monitor;
gint64 fontconfig_timestamp;
GsdXSettingsGtk *gtk;
guint introspect_properties_changed_id;
guint shell_introspect_watch_id;
gboolean enable_animations;
guint display_config_watch_id;
guint monitors_changed_id;
guint shell_name_watch_id;
gboolean have_shell;
guint notify_idle_id;
GDBusNodeInfo *introspection_data;
GDBusConnection *dbus_connection;
guint gtk_settings_name_id;
};
#define GSD_XSETTINGS_ERROR gsd_xsettings_error_quark ()
enum {
GSD_XSETTINGS_ERROR_INIT
};
static void gsd_xsettings_manager_class_init (GsdXSettingsManagerClass *klass);
static void gsd_xsettings_manager_init (GsdXSettingsManager *xsettings_manager);
static void gsd_xsettings_manager_finalize (GObject *object);
static void register_manager_dbus (GsdXSettingsManager *manager);
G_DEFINE_TYPE (GsdXSettingsManager, gsd_xsettings_manager, G_TYPE_OBJECT)
static gpointer manager_object = NULL;
static GQuark
gsd_xsettings_error_quark (void)
{
return g_quark_from_static_string ("gsd-xsettings-error-quark");
}
static void
translate_bool_int (GsdXSettingsManager *manager,
TranslationEntry *trans,
GVariant *value)
{
xsettings_manager_set_int (manager->manager, trans->xsetting_name,
g_variant_get_boolean (value));
}
static void
translate_int_int (GsdXSettingsManager *manager,
TranslationEntry *trans,
GVariant *value)
{
xsettings_manager_set_int (manager->manager, trans->xsetting_name,
g_variant_get_int32 (value));
}
static void
translate_string_string (GsdXSettingsManager *manager,
TranslationEntry *trans,
GVariant *value)
{
xsettings_manager_set_string (manager->manager,
trans->xsetting_name,
g_variant_get_string (value, NULL));
}
static void
translate_button_layout (GsdXSettingsManager *manager,
TranslationEntry *trans,
GVariant *value)
{
GSettings *classic_settings;
GVariant *classic_value = NULL;
char *layout;
/* Hack: until we get session-dependent defaults in GSettings,
* swap out the usual schema for the "classic" one when
* running in classic mode
*/
classic_settings = g_hash_table_lookup (manager->settings,
CLASSIC_WM_SETTINGS_SCHEMA);
if (classic_settings) {
classic_value = g_settings_get_value (classic_settings, "button-layout");
layout = g_variant_dup_string (classic_value, NULL);
} else {
layout = g_variant_dup_string (value, NULL);
}
translate_wm_button_layout_to_gtk (layout);
xsettings_manager_set_string (manager->manager,
trans->xsetting_name,
layout);
if (classic_value)
g_variant_unref (classic_value);
g_free (layout);
}
static void
fixed_false_int (GsdXSettingsManager *manager,
FixedEntry *fixed)
{
xsettings_manager_set_int (manager->manager, fixed->xsetting_name, FALSE);
}
static void
fixed_true_int (GsdXSettingsManager *manager,
FixedEntry *fixed)
{
xsettings_manager_set_int (manager->manager, fixed->xsetting_name, TRUE);
}
static void
fixed_bus_id (GsdXSettingsManager *manager,
FixedEntry *fixed)
{
const gchar *id;
GDBusConnection *bus;
GVariant *res;
bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
res = g_dbus_connection_call_sync (bus,
"org.freedesktop.DBus",
"/org/freedesktop/DBus",
"org.freedesktop.DBus",
"GetId",
NULL,
NULL,
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
NULL);
if (res) {
g_variant_get (res, "(&s)", &id);
xsettings_manager_set_string (manager->manager, fixed->xsetting_name, id);
g_variant_unref (res);
}
g_object_unref (bus);
}
static void
fixed_string (GsdXSettingsManager *manager,
FixedEntry *fixed)
{
xsettings_manager_set_string (manager->manager,
fixed->xsetting_name,
fixed->val.str);
}
static void
fixed_int (GsdXSettingsManager *manager,
FixedEntry *fixed)
{
xsettings_manager_set_int (manager->manager,
fixed->xsetting_name,
fixed->val.num);
}
#define DEFAULT_COLOR_PALETTE "black:white:gray50:red:purple:blue:light blue:green:yellow:orange:lavender:brown:goldenrod4:dodger blue:pink:light green:gray10:gray30:gray75:gray90"
static FixedEntry fixed_entries [] = {
{ "Gtk/MenuImages", fixed_false_int },
{ "Gtk/ButtonImages", fixed_false_int },
{ "Gtk/ShowInputMethodMenu", fixed_false_int },
{ "Gtk/ShowUnicodeMenu", fixed_false_int },
{ "Gtk/AutoMnemonics", fixed_true_int },
{ "Gtk/DialogsUseHeader", fixed_true_int },
{ "Gtk/SessionBusId", fixed_bus_id },
{ "Gtk/ShellShowsAppMenu", fixed_false_int },
{ "Gtk/ColorPalette", fixed_string, { .str = DEFAULT_COLOR_PALETTE } },
{ "Net/FallbackIconTheme", fixed_string, { .str = "gnome" } },
{ "Gtk/ToolbarStyle", fixed_string, { .str = "both-horiz" } },
{ "Gtk/ToolbarIconSize", fixed_string, { .str = "large" } },
{ "Gtk/CanChangeAccels", fixed_false_int },
{ "Gtk/TimeoutInitial", fixed_int, { .num = 200 } },
{ "Gtk/TimeoutRepeat", fixed_int, { .num = 20 } },
{ "Gtk/ColorScheme", fixed_string, { .str = "" } },
{ "Gtk/IMPreeditStyle", fixed_string, { .str = "callback" } },
{ "Gtk/IMStatusStyle", fixed_string, { .str = "callback" } },
{ "Gtk/MenuBarAccel", fixed_string, { .str = "F10" } }
};
static TranslationEntry translations [] = {
{ "org.gnome.settings-daemon.peripherals.mouse", "double-click", "Net/DoubleClickTime", translate_int_int },
{ "org.gnome.settings-daemon.peripherals.mouse", "drag-threshold", "Net/DndDragThreshold", translate_int_int },
{ "org.gnome.desktop.background", "show-desktop-icons", "Gtk/ShellShowsDesktop", translate_bool_int },
{ "org.gnome.desktop.interface", "font-name", "Gtk/FontName", translate_string_string },
{ "org.gnome.desktop.interface", "gtk-key-theme", "Gtk/KeyThemeName", translate_string_string },
{ "org.gnome.desktop.interface", "cursor-blink", "Net/CursorBlink", translate_bool_int },
{ "org.gnome.desktop.interface", "cursor-blink-time", "Net/CursorBlinkTime", translate_int_int },
{ "org.gnome.desktop.interface", "cursor-blink-timeout", "Gtk/CursorBlinkTimeout", translate_int_int },
{ "org.gnome.desktop.interface", "gtk-theme", "Net/ThemeName", translate_string_string },
{ "org.gnome.desktop.interface", "gtk-im-module", "Gtk/IMModule", translate_string_string },
{ "org.gnome.desktop.interface", "icon-theme", "Net/IconThemeName", translate_string_string },
{ "org.gnome.desktop.interface", "cursor-theme", "Gtk/CursorThemeName", translate_string_string },
{ "org.gnome.desktop.interface", "gtk-enable-primary-paste", "Gtk/EnablePrimaryPaste", translate_bool_int },
{ "org.gnome.desktop.interface", "overlay-scrolling", "Gtk/OverlayScrolling", translate_bool_int },
/* cursor-size is handled via the Xft side as it needs the scaling factor */
{ "org.gnome.desktop.sound", "theme-name", "Net/SoundThemeName", translate_string_string },
{ "org.gnome.desktop.sound", "event-sounds", "Net/EnableEventSounds" , translate_bool_int },
{ "org.gnome.desktop.sound", "input-feedback-sounds", "Net/EnableInputFeedbackSounds", translate_bool_int },
{ "org.gnome.desktop.privacy", "recent-files-max-age", "Gtk/RecentFilesMaxAge", translate_int_int },
{ "org.gnome.desktop.privacy", "remember-recent-files", "Gtk/RecentFilesEnabled", translate_bool_int },
{ "org.gnome.desktop.wm.preferences", "button-layout", "Gtk/DecorationLayout", translate_button_layout },
{ "org.gnome.desktop.wm.preferences", "action-double-click-titlebar", "Gtk/TitlebarDoubleClick", translate_string_string },
{ "org.gnome.desktop.wm.preferences", "action-middle-click-titlebar", "Gtk/TitlebarMiddleClick", translate_string_string },
{ "org.gnome.desktop.wm.preferences", "action-right-click-titlebar", "Gtk/TitlebarRightClick", translate_string_string },
{ "org.gnome.desktop.a11y", "always-show-text-caret", "Gtk/KeynavUseCaret", translate_bool_int }
};
static gboolean
notify_idle (gpointer data)
{
GsdXSettingsManager *manager = data;
xsettings_manager_notify (manager->manager);
manager->notify_idle_id = 0;
return G_SOURCE_REMOVE;
}
static void
queue_notify (GsdXSettingsManager *manager)
{
if (manager->notify_idle_id != 0)
return;
manager->notify_idle_id = g_idle_add (notify_idle, manager);
g_source_set_name_by_id (manager->notify_idle_id, "[gnome-settings-daemon] notify_idle");
}
typedef enum {
GTK_SETTINGS_FONTCONFIG_TIMESTAMP = 1 << 0,
GTK_SETTINGS_MODULES = 1 << 1,
GTK_SETTINGS_ENABLE_ANIMATIONS = 1 << 2
} GtkSettingsMask;
static void
send_dbus_event (GsdXSettingsManager *manager,
GtkSettingsMask mask)
{
GVariantBuilder props_builder;
GVariant *props_changed = NULL;
g_variant_builder_init (&props_builder, G_VARIANT_TYPE ("a{sv}"));
if (mask & GTK_SETTINGS_FONTCONFIG_TIMESTAMP) {
g_variant_builder_add (&props_builder, "{sv}", "FontconfigTimestamp",
g_variant_new_int64 (manager->fontconfig_timestamp));
}
if (mask & GTK_SETTINGS_MODULES) {
const char *modules = gsd_xsettings_gtk_get_modules (manager->gtk);
g_variant_builder_add (&props_builder, "{sv}", "Modules",
g_variant_new_string (modules ? modules : ""));
}
if (mask & GTK_SETTINGS_ENABLE_ANIMATIONS) {
g_variant_builder_add (&props_builder, "{sv}", "EnableAnimations",
g_variant_new_boolean (manager->enable_animations));
}
props_changed = g_variant_new ("(s@a{sv}@as)", GTK_SETTINGS_DBUS_NAME,
g_variant_builder_end (&props_builder),
g_variant_new_strv (NULL, 0));
g_dbus_connection_emit_signal (manager->dbus_connection,
NULL,
GTK_SETTINGS_DBUS_PATH,
"org.freedesktop.DBus.Properties",
"PropertiesChanged",
props_changed, NULL);
}
static double
get_dpi_from_gsettings (GsdXSettingsManager *manager)
{
GSettings *interface_settings;
double dpi;
double factor;
interface_settings = g_hash_table_lookup (manager->settings, INTERFACE_SETTINGS_SCHEMA);
factor = g_settings_get_double (interface_settings, TEXT_SCALING_FACTOR_KEY);
dpi = DPI_FALLBACK;
return dpi * factor;
}
static gboolean
get_legacy_ui_scale (GVariantIter *properties,
int *scale)
{
const char *key;
GVariant *value;
*scale = 0;
while (g_variant_iter_loop (properties, "{&sv}", &key, &value)) {
if (!g_str_equal (key, "legacy-ui-scaling-factor"))
continue;
*scale = g_variant_get_int32 (value);
break;
}
if (*scale < 1) {
g_warning ("Failed to get current UI legacy scaling factor");
*scale = 1;
return FALSE;
}
return TRUE;
}
#define MODE_FORMAT "(siiddada{sv})"
#define MODES_FORMAT "a" MODE_FORMAT
#define MONITOR_SPEC_FORMAT "(ssss)"
#define MONITOR_FORMAT "(" MONITOR_SPEC_FORMAT MODES_FORMAT "a{sv})"
#define MONITORS_FORMAT "a" MONITOR_FORMAT
#define LOGICAL_MONITOR_FORMAT "(iiduba" MONITOR_SPEC_FORMAT "a{sv})"
#define LOGICAL_MONITORS_FORMAT "a" LOGICAL_MONITOR_FORMAT
#define CURRENT_STATE_FORMAT "(u" MONITORS_FORMAT LOGICAL_MONITORS_FORMAT "a{sv})"
static int
get_window_scale (GsdXSettingsManager *manager)
{
g_autoptr(GError) error = NULL;
g_autoptr(GVariant) current_state = NULL;
g_autoptr(GVariantIter) properties = NULL;
int scale = 1;
current_state =
g_dbus_connection_call_sync (manager->dbus_connection,
"org.gnome.Mutter.DisplayConfig",
"/org/gnome/Mutter/DisplayConfig",
"org.gnome.Mutter.DisplayConfig",
"GetCurrentState",
NULL,
NULL,
G_DBUS_CALL_FLAGS_NO_AUTO_START,
-1,
NULL,
&error);
if (!current_state) {
g_warning ("Failed to get current display configuration state: %s",
error->message);
return 1;
}
g_variant_get (current_state,
CURRENT_STATE_FORMAT,
NULL,
NULL,
NULL,
&properties);
if (!get_legacy_ui_scale (properties, &scale))
g_warning ("Failed to get current UI legacy scaling factor");
return scale;
}
typedef struct {
gboolean antialias;
gboolean hinting;
int scaled_dpi;
int dpi;
int window_scale;
int cursor_size;
char *cursor_theme;
const char *rgba;
const char *hintstyle;
} GsdXftSettings;
/* Read GSettings and determine the appropriate Xft settings based on them. */
static void
xft_settings_get (GsdXSettingsManager *manager,
GsdXftSettings *settings)
{
GSettings *interface_settings;
GsdFontAntialiasingMode antialiasing;
GsdFontHinting hinting;
GsdFontRgbaOrder order;
gboolean use_rgba = FALSE;
double dpi;
int cursor_size;
interface_settings = g_hash_table_lookup (manager->settings, INTERFACE_SETTINGS_SCHEMA);
antialiasing = g_settings_get_enum (manager->plugin_settings, FONT_ANTIALIASING_KEY);
hinting = g_settings_get_enum (manager->plugin_settings, FONT_HINTING_KEY);
order = g_settings_get_enum (manager->plugin_settings, FONT_RGBA_ORDER_KEY);
settings->antialias = (antialiasing != GSD_FONT_ANTIALIASING_MODE_NONE);
settings->hinting = (hinting != GSD_FONT_HINTING_NONE);
settings->window_scale = get_window_scale (manager);
dpi = get_dpi_from_gsettings (manager);
settings->dpi = dpi * 1024; /* Xft wants 1/1024ths of an inch */
settings->scaled_dpi = dpi * settings->window_scale * 1024;
cursor_size = g_settings_get_int (interface_settings, CURSOR_SIZE_KEY);
settings->cursor_size = cursor_size * settings->window_scale;
settings->cursor_theme = g_settings_get_string (interface_settings, CURSOR_THEME_KEY);
settings->rgba = "rgb";
settings->hintstyle = "hintfull";
switch (hinting) {
case GSD_FONT_HINTING_NONE:
settings->hintstyle = "hintnone";
break;
case GSD_FONT_HINTING_SLIGHT:
settings->hintstyle = "hintslight";
break;
case GSD_FONT_HINTING_MEDIUM:
settings->hintstyle = "hintmedium";
break;
case GSD_FONT_HINTING_FULL:
settings->hintstyle = "hintfull";
break;
}
switch (order) {
case GSD_FONT_RGBA_ORDER_RGBA:
settings->rgba = "rgba";
break;
case GSD_FONT_RGBA_ORDER_RGB:
settings->rgba = "rgb";
break;
case GSD_FONT_RGBA_ORDER_BGR:
settings->rgba = "bgr";
break;
case GSD_FONT_RGBA_ORDER_VRGB:
settings->rgba = "vrgb";
break;
case GSD_FONT_RGBA_ORDER_VBGR:
settings->rgba = "vbgr";
break;
}
switch (antialiasing) {
case GSD_FONT_ANTIALIASING_MODE_NONE:
settings->antialias = 0;
break;
case GSD_FONT_ANTIALIASING_MODE_GRAYSCALE:
settings->antialias = 1;
break;
case GSD_FONT_ANTIALIASING_MODE_RGBA:
settings->antialias = 1;
use_rgba = TRUE;
}
if (!use_rgba) {
settings->rgba = "none";
}
}
static void
xft_settings_clear (GsdXftSettings *settings)
{
g_free (settings->cursor_theme);
}
static void
xft_settings_set_xsettings (GsdXSettingsManager *manager,
GsdXftSettings *settings)
{
gnome_settings_profile_start (NULL);
xsettings_manager_set_int (manager->manager, "Xft/Antialias", settings->antialias);
xsettings_manager_set_int (manager->manager, "Xft/Hinting", settings->hinting);
xsettings_manager_set_string (manager->manager, "Xft/HintStyle", settings->hintstyle);
xsettings_manager_set_int (manager->manager, "Gdk/WindowScalingFactor", settings->window_scale);
xsettings_manager_set_int (manager->manager, "Gdk/UnscaledDPI", settings->dpi);
xsettings_manager_set_int (manager->manager, "Xft/DPI", settings->scaled_dpi);
xsettings_manager_set_string (manager->manager, "Xft/RGBA", settings->rgba);
xsettings_manager_set_int (manager->manager, "Gtk/CursorThemeSize", settings->cursor_size);
xsettings_manager_set_string (manager->manager, "Gtk/CursorThemeName", settings->cursor_theme);
gnome_settings_profile_end (NULL);
}
static void
update_property (GString *props, const gchar* key, const gchar* value)
{
gchar* needle;
size_t needle_len;
gchar* found = NULL;
/* update an existing property */
needle = g_strconcat (key, ":", NULL);
needle_len = strlen (needle);
if (g_str_has_prefix (props->str, needle))
found = props->str;
else
found = strstr (props->str, needle);
if (found) {
size_t value_index;
gchar* end;
end = strchr (found, '\n');
value_index = (found - props->str) + needle_len + 1;
g_string_erase (props, value_index, end ? (end - found - needle_len) : -1);
g_string_insert (props, value_index, "\n");
g_string_insert (props, value_index, value);
} else {
g_string_append_printf (props, "%s:\t%s\n", key, value);
}
g_free (needle);
}
static void
xft_settings_set_xresources (GsdXftSettings *settings)
{
GString *add_string;
char dpibuf[G_ASCII_DTOSTR_BUF_SIZE];
Display *dpy;
gnome_settings_profile_start (NULL);
/* get existing properties */
dpy = XOpenDisplay (NULL);
g_return_if_fail (dpy != NULL);
add_string = g_string_new (XResourceManagerString (dpy));
g_debug("xft_settings_set_xresources: orig res '%s'", add_string->str);
g_snprintf (dpibuf, sizeof (dpibuf), "%d", (int) (settings->scaled_dpi / 1024.0 + 0.5));
update_property (add_string, "Xft.dpi", dpibuf);
update_property (add_string, "Xft.antialias",
settings->antialias ? "1" : "0");
update_property (add_string, "Xft.hinting",
settings->hinting ? "1" : "0");
update_property (add_string, "Xft.hintstyle",
settings->hintstyle);
update_property (add_string, "Xft.rgba",
settings->rgba);
update_property (add_string, "Xcursor.size",
g_ascii_dtostr (dpibuf, sizeof (dpibuf), (double) settings->cursor_size));
update_property (add_string, "Xcursor.theme",
settings->cursor_theme);
g_debug("xft_settings_set_xresources: new res '%s'", add_string->str);
/* Set the new X property */
XChangeProperty(dpy, RootWindow (dpy, 0),
XA_RESOURCE_MANAGER, XA_STRING, 8, PropModeReplace, (const unsigned char *) add_string->str, add_string->len);
XCloseDisplay (dpy);
g_string_free (add_string, TRUE);
gnome_settings_profile_end (NULL);
}
/* We mirror the Xft properties both through XSETTINGS and through
* X resources
*/
static void
update_xft_settings (GsdXSettingsManager *manager)
{
GsdXftSettings settings;
gnome_settings_profile_start (NULL);
xft_settings_get (manager, &settings);
xft_settings_set_xsettings (manager, &settings);
xft_settings_set_xresources (&settings);
xft_settings_clear (&settings);
gnome_settings_profile_end (NULL);
}
static void
xft_callback (GSettings *settings,
const gchar *key,
GsdXSettingsManager *manager)
{
update_xft_settings (manager);
queue_notify (manager);
}
static void
override_callback (GSettings *settings,
const gchar *key,
GsdXSettingsManager *manager)
{
GVariant *value;
value = g_settings_get_value (settings, XSETTINGS_OVERRIDE_KEY);
xsettings_manager_set_overrides (manager->manager, value);
queue_notify (manager);
g_variant_unref (value);
}
static void
plugin_callback (GSettings *settings,
const char *key,
GsdXSettingsManager *manager)
{
if (g_str_equal (key, GTK_MODULES_DISABLED_KEY) ||
g_str_equal (key, GTK_MODULES_ENABLED_KEY)) {
/* Do nothing, as GsdXsettingsGtk will handle it */
} else if (g_str_equal (key, XSETTINGS_OVERRIDE_KEY)) {
override_callback (settings, key, manager);
} else {
xft_callback (settings, key, manager);
}
}
static void
gtk_modules_callback (GsdXSettingsGtk *gtk,
GParamSpec *spec,
GsdXSettingsManager *manager)
{
const char *modules = gsd_xsettings_gtk_get_modules (manager->gtk);
if (modules == NULL) {
xsettings_manager_delete_setting (manager->manager, "Gtk/Modules");
} else {
g_debug ("Setting GTK modules '%s'", modules);
xsettings_manager_set_string (manager->manager,
"Gtk/Modules",
modules);
}
queue_notify (manager);
send_dbus_event (manager, GTK_SETTINGS_MODULES);
}
static void
fontconfig_callback (FcMonitor *monitor,
GsdXSettingsManager *manager)
{
gint64 timestamp = g_get_real_time ();
gint timestamp_sec = (int)(timestamp / G_TIME_SPAN_SECOND);
gnome_settings_profile_start (NULL);
xsettings_manager_set_int (manager->manager, "Fontconfig/Timestamp", timestamp_sec);
manager->fontconfig_timestamp = timestamp;
queue_notify (manager);
send_dbus_event (manager, GTK_SETTINGS_FONTCONFIG_TIMESTAMP);
gnome_settings_profile_end (NULL);
}
static gboolean
start_fontconfig_monitor_idle_cb (GsdXSettingsManager *manager)
{
gnome_settings_profile_start (NULL);
fc_monitor_start (manager->fontconfig_monitor);
gnome_settings_profile_end (NULL);
manager->start_idle_id = 0;
return FALSE;
}
static void
start_fontconfig_monitor (GsdXSettingsManager *manager)
{
gnome_settings_profile_start (NULL);
manager->fontconfig_monitor = fc_monitor_new ();
g_signal_connect (manager->fontconfig_monitor, "updated", G_CALLBACK (fontconfig_callback), manager);
manager->start_idle_id = g_idle_add ((GSourceFunc) start_fontconfig_monitor_idle_cb, manager);
g_source_set_name_by_id (manager->start_idle_id, "[gnome-settings-daemon] start_fontconfig_monitor_idle_cb");
gnome_settings_profile_end (NULL);
}
static void
process_value (GsdXSettingsManager *manager,
TranslationEntry *trans,
GVariant *value)
{
(* trans->translate) (manager, trans, value);
}
static TranslationEntry *
find_translation_entry (GSettings *settings, const char *key)
{
guint i;
char *schema;
g_object_get (settings, "schema-id", &schema, NULL);
if (g_str_equal (schema, CLASSIC_WM_SETTINGS_SCHEMA)) {
g_free (schema);
schema = g_strdup (WM_SETTINGS_SCHEMA);
}
for (i = 0; i < G_N_ELEMENTS (translations); i++) {
if (g_str_equal (schema, translations[i].gsettings_schema) &&
g_str_equal (key, translations[i].gsettings_key)) {
g_free (schema);
return &translations[i];
}
}
g_free (schema);
return NULL;