/* Functions for handling font and other changes dynamically.
-Copyright (C) 2009-2011 Free Software Foundation, Inc.
+Copyright (C) 2009-2013 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include <float.h>
#include <limits.h>
-#include <setjmp.h>
#include <fcntl.h>
#include "lisp.h"
#include "xterm.h"
#include "keyboard.h"
#include "blockinput.h"
#include "termhooks.h"
-#include "termopts.h"
#include <X11/Xproto.h>
+#ifdef HAVE_GSETTINGS
+#include <glib-object.h>
+#include <gio/gio.h>
+#endif
+
#ifdef HAVE_GCONF
#include <gconf/gconf-client.h>
#endif
+
#ifdef HAVE_XFT
#include <X11/Xft/Xft.h>
#endif
Qtool_bar_style;
static Lisp_Object current_tool_bar_style;
-#ifdef HAVE_GCONF
-static GConfClient *gconf_client;
-#endif
-
+/* Store an config changed event in to the event queue. */
static void
store_config_changed_event (Lisp_Object arg, Lisp_Object display_name)
kbd_buffer_store_event (&event);
}
+/* Return non-zero if DPYINFO is still valid. */
+static int
+dpyinfo_valid (struct x_display_info *dpyinfo)
+{
+ int found = 0;
+ if (dpyinfo != NULL)
+ {
+ struct x_display_info *d;
+ for (d = x_display_list; !found && d; d = d->next)
+ found = d == dpyinfo && d->display == dpyinfo->display;
+ }
+ return found;
+}
+
+/* Store a monospace font change event if the monospaced font changed. */
+
+#if defined HAVE_XFT && (defined HAVE_GSETTINGS || defined HAVE_GCONF)
+static void
+store_monospaced_changed (const char *newfont)
+{
+ if (current_mono_font != NULL && strcmp (newfont, current_mono_font) == 0)
+ return; /* No change. */
+
+ xfree (current_mono_font);
+ current_mono_font = xstrdup (newfont);
+
+ if (dpyinfo_valid (first_dpyinfo) && use_system_font)
+ {
+ store_config_changed_event (Qmonospace_font_name,
+ XCAR (first_dpyinfo->name_list_element));
+ }
+}
+#endif
+
+/* Store a font name change event if the font name changed. */
+
+#ifdef HAVE_XFT
+static void
+store_font_name_changed (const char *newfont)
+{
+ if (current_font != NULL && strcmp (newfont, current_font) == 0)
+ return; /* No change. */
+
+ xfree (current_font);
+ current_font = xstrdup (newfont);
+
+ if (dpyinfo_valid (first_dpyinfo))
+ {
+ store_config_changed_event (Qfont_name,
+ XCAR (first_dpyinfo->name_list_element));
+ }
+}
+#endif /* HAVE_XFT */
+
+/* Map TOOL_BAR_STYLE from a string to its corresponding Lisp value.
+ Return Qnil if TOOL_BAR_STYLE is not known. */
+
+static Lisp_Object
+map_tool_bar_style (const char *tool_bar_style)
+{
+ Lisp_Object style = Qnil;
+ if (tool_bar_style)
+ {
+ if (strcmp (tool_bar_style, "both") == 0)
+ style = Qboth;
+ else if (strcmp (tool_bar_style, "both-horiz") == 0)
+ style = Qboth_horiz;
+ else if (strcmp (tool_bar_style, "icons") == 0)
+ style = Qimage;
+ else if (strcmp (tool_bar_style, "text") == 0)
+ style = Qtext;
+ }
+
+ return style;
+}
+
+/* Store a tool bar style change event if the tool bar style changed. */
+
+static void
+store_tool_bar_style_changed (const char *newstyle,
+ struct x_display_info *dpyinfo)
+{
+ Lisp_Object style = map_tool_bar_style (newstyle);
+ if (EQ (current_tool_bar_style, style))
+ return; /* No change. */
+
+ current_tool_bar_style = style;
+ if (dpyinfo_valid (dpyinfo))
+ store_config_changed_event (Qtool_bar_style,
+ XCAR (dpyinfo->name_list_element));
+}
+
+#ifdef HAVE_XFT
#define XSETTINGS_FONT_NAME "Gtk/FontName"
+#endif
#define XSETTINGS_TOOL_BAR_STYLE "Gtk/ToolbarStyle"
enum {
FcBool aa, hinting;
int rgba, lcdfilter, hintstyle;
double dpi;
-#endif
char *font;
+#endif
+
char *tb_style;
unsigned seen;
};
+#ifdef HAVE_GSETTINGS
+#define GSETTINGS_SCHEMA "org.gnome.desktop.interface"
+#define GSETTINGS_TOOL_BAR_STYLE "toolbar-style"
+
+#ifdef HAVE_XFT
+#define GSETTINGS_MONO_FONT "monospace-font-name"
+#define GSETTINGS_FONT_NAME "font-name"
+#endif
+
+
+/* The single GSettings instance, or NULL if not connected to GSettings. */
+
+static GSettings *gsettings_client;
+
+/* Callback called when something changed in GSettings. */
+
+static void
+something_changed_gsettingsCB (GSettings *settings,
+ gchar *key,
+ gpointer user_data)
+{
+ GVariant *val;
+
+ if (strcmp (key, GSETTINGS_TOOL_BAR_STYLE) == 0)
+ {
+ val = g_settings_get_value (settings, GSETTINGS_TOOL_BAR_STYLE);
+ if (val)
+ {
+ g_variant_ref_sink (val);
+ if (g_variant_is_of_type (val, G_VARIANT_TYPE_STRING))
+ {
+ const gchar *newstyle = g_variant_get_string (val, NULL);
+ store_tool_bar_style_changed (newstyle, first_dpyinfo);
+ }
+ g_variant_unref (val);
+ }
+ }
+#ifdef HAVE_XFT
+ else if (strcmp (key, GSETTINGS_MONO_FONT) == 0)
+ {
+ val = g_settings_get_value (settings, GSETTINGS_MONO_FONT);
+ if (val)
+ {
+ g_variant_ref_sink (val);
+ if (g_variant_is_of_type (val, G_VARIANT_TYPE_STRING))
+ {
+ const gchar *newfont = g_variant_get_string (val, NULL);
+ store_monospaced_changed (newfont);
+ }
+ g_variant_unref (val);
+ }
+ }
+ else if (strcmp (key, GSETTINGS_FONT_NAME) == 0)
+ {
+ val = g_settings_get_value (settings, GSETTINGS_FONT_NAME);
+ if (val)
+ {
+ g_variant_ref_sink (val);
+ if (g_variant_is_of_type (val, G_VARIANT_TYPE_STRING))
+ {
+ const gchar *newfont = g_variant_get_string (val, NULL);
+ store_font_name_changed (newfont);
+ }
+ g_variant_unref (val);
+ }
+ }
+#endif /* HAVE_XFT */
+}
+
+#endif /* HAVE_GSETTINGS */
+
#ifdef HAVE_GCONF
+#define GCONF_TOOL_BAR_STYLE "/desktop/gnome/interface/toolbar_style"
+#ifdef HAVE_XFT
+#define GCONF_MONO_FONT "/desktop/gnome/interface/monospace_font_name"
+#define GCONF_FONT_NAME "/desktop/gnome/interface/font_name"
+#endif
-#define SYSTEM_MONO_FONT "/desktop/gnome/interface/monospace_font_name"
-#define SYSTEM_FONT "/desktop/gnome/interface/font_name"
+/* The single GConf instance, or NULL if not connected to GConf. */
+
+static GConfClient *gconf_client;
-/* Callback called when something changed in GConf that we care about,
- that is SYSTEM_MONO_FONT. */
+/* Callback called when something changed in GConf that we care about. */
static void
-something_changedCB (GConfClient *client,
- guint cnxn_id,
- GConfEntry *entry,
- gpointer user_data)
+something_changed_gconfCB (GConfClient *client,
+ guint cnxn_id,
+ GConfEntry *entry,
+ gpointer user_data)
{
GConfValue *v = gconf_entry_get_value (entry);
+ const char *key = gconf_entry_get_key (entry);
- if (!v) return;
- if (v->type == GCONF_VALUE_STRING)
+ if (!v || v->type != GCONF_VALUE_STRING || ! key) return;
+ if (strcmp (key, GCONF_TOOL_BAR_STYLE) == 0)
{
const char *value = gconf_value_get_string (v);
- if (current_mono_font != NULL && strcmp (value, current_mono_font) == 0)
- return; /* No change. */
-
- xfree (current_mono_font);
- current_mono_font = xstrdup (value);
+ store_tool_bar_style_changed (value, first_dpyinfo);
}
-
-
- if (first_dpyinfo != NULL)
+#ifdef HAVE_XFT
+ else if (strcmp (key, GCONF_MONO_FONT) == 0)
+ {
+ const char *value = gconf_value_get_string (v);
+ store_monospaced_changed (value);
+ }
+ else if (strcmp (key, GCONF_FONT_NAME) == 0)
{
- /* Check if display still open */
- struct x_display_info *dpyinfo;
- int found = 0;
- for (dpyinfo = x_display_list; !found && dpyinfo; dpyinfo = dpyinfo->next)
- found = dpyinfo == first_dpyinfo;
-
- if (found && use_system_font)
- store_config_changed_event (Qmonospace_font_name,
- XCAR (first_dpyinfo->name_list_element));
+ const char *value = gconf_value_get_string (v);
+ store_font_name_changed (value);
}
+#endif /* HAVE_XFT */
}
+
#endif /* HAVE_GCONF */
#ifdef HAVE_XFT
want_this =
#ifdef HAVE_XFT
(nlen > 6 && strncmp (name, "Xft/", 4) == 0)
+ || strcmp (XSETTINGS_FONT_NAME, name) == 0
||
#endif
- (strcmp (XSETTINGS_FONT_NAME, name) == 0)
- || (strcmp (XSETTINGS_TOOL_BAR_STYLE, name) == 0);
+ strcmp (XSETTINGS_TOOL_BAR_STYLE, name) == 0;
switch (type)
{
if (want_this)
{
++settings_seen;
- if (strcmp (name, XSETTINGS_FONT_NAME) == 0)
- {
- settings->font = xstrdup (sval);
- settings->seen |= SEEN_FONT;
- }
- else if (strcmp (name, XSETTINGS_TOOL_BAR_STYLE) == 0)
+ if (strcmp (name, XSETTINGS_TOOL_BAR_STYLE) == 0)
{
settings->tb_style = xstrdup (sval);
settings->seen |= SEEN_TB_STYLE;
}
#ifdef HAVE_XFT
+ else if (strcmp (name, XSETTINGS_FONT_NAME) == 0)
+ {
+ settings->font = xstrdup (sval);
+ settings->seen |= SEEN_FONT;
+ }
else if (strcmp (name, "Xft/Antialias") == 0)
{
settings->seen |= SEEN_AA;
return settings_seen;
}
+/* Read settings from the XSettings property window on display for DPYINFO.
+ Store settings read in SETTINGS.
+ Return non-zero if successful, zero if not. */
+
static int
read_settings (struct x_display_info *dpyinfo, struct xsettings *settings)
{
return rc != 0;
}
+/* Apply Xft settings in SETTINGS to the Xft library.
+ If SEND_EVENT_P is non-zero store a Lisp event that Xft settings changed. */
static void
apply_xft_settings (struct x_display_info *dpyinfo,
pat);
FcPatternGetBool (pat, FC_ANTIALIAS, 0, &oldsettings.aa);
FcPatternGetBool (pat, FC_HINTING, 0, &oldsettings.hinting);
-# ifdef FC_HINT_STYLE
+#ifdef FC_HINT_STYLE
FcPatternGetInteger (pat, FC_HINT_STYLE, 0, &oldsettings.hintstyle);
-# endif
+#endif
FcPatternGetInteger (pat, FC_LCD_FILTER, 0, &oldsettings.lcdfilter);
FcPatternGetInteger (pat, FC_RGBA, 0, &oldsettings.rgba);
FcPatternGetDouble (pat, FC_DPI, 0, &oldsettings.dpi);
oldsettings.lcdfilter = settings->lcdfilter;
}
-# ifdef FC_HINT_STYLE
+#ifdef FC_HINT_STYLE
if ((settings->seen & SEEN_HINTSTYLE) != 0
&& oldsettings.hintstyle != settings->hintstyle)
{
++changed;
oldsettings.hintstyle = settings->hintstyle;
}
-# endif
+#endif
if ((settings->seen & SEEN_DPI) != 0 && oldsettings.dpi != settings->dpi
&& settings->dpi > 0)
if (send_event_p)
store_config_changed_event (Qfont_render,
XCAR (dpyinfo->name_list_element));
- sprintf (buf, format, oldsettings.aa, oldsettings.hinting,
- oldsettings.rgba, oldsettings.lcdfilter,
- oldsettings.hintstyle, oldsettings.dpi);
- Vxft_settings = build_string (buf);
+ Vxft_settings
+ = make_formatted_string (buf, format,
+ oldsettings.aa, oldsettings.hinting,
+ oldsettings.rgba, oldsettings.lcdfilter,
+ oldsettings.hintstyle, oldsettings.dpi);
+
}
else
FcPatternDestroy (pat);
#endif /* HAVE_XFT */
}
+/* Read XSettings from the display for DPYINFO.
+ If SEND_EVENT_P is non-zero store a Lisp event settings that changed. */
+
static void
read_and_apply_settings (struct x_display_info *dpyinfo, int send_event_p)
{
struct xsettings settings;
- Lisp_Object dpyname = XCAR (dpyinfo->name_list_element);
if (!read_settings (dpyinfo, &settings))
return;
apply_xft_settings (dpyinfo, True, &settings);
if (settings.seen & SEEN_TB_STYLE)
{
- Lisp_Object style = Qnil;
- if (strcmp (settings.tb_style, "both") == 0)
- style = Qboth;
- else if (strcmp (settings.tb_style, "both-horiz") == 0)
- style = Qboth_horiz;
- else if (strcmp (settings.tb_style, "icons") == 0)
- style = Qimage;
- else if (strcmp (settings.tb_style, "text") == 0)
- style = Qtext;
- if (!NILP (style) && !EQ (style, current_tool_bar_style))
- {
- current_tool_bar_style = style;
- if (send_event_p)
- store_config_changed_event (Qtool_bar_style, dpyname);
- }
+ if (send_event_p)
+ store_tool_bar_style_changed (settings.tb_style, dpyinfo);
+ else
+ current_tool_bar_style = map_tool_bar_style (settings.tb_style);
xfree (settings.tb_style);
}
-
+#ifdef HAVE_XFT
if (settings.seen & SEEN_FONT)
{
- if (!current_font || strcmp (current_font, settings.font) != 0)
+ if (send_event_p)
+ store_font_name_changed (settings.font);
+ else
{
xfree (current_font);
- current_font = settings.font;
- if (send_event_p)
- store_config_changed_event (Qfont_name, dpyname);
+ current_font = xstrdup (settings.font);
}
- else
- xfree (settings.font);
+ xfree (settings.font);
}
+#endif
}
+/* Check if EVENT for the display in DPYINFO is XSettings related. */
+
void
xft_settings_event (struct x_display_info *dpyinfo, XEvent *event)
{
read_and_apply_settings (dpyinfo, True);
}
+/* Initialize GSettings and read startup values. */
+
+static void
+init_gsettings (void)
+{
+#ifdef HAVE_GSETTINGS
+ GVariant *val;
+ const gchar *const *schemas;
+ int schema_found = 0;
+
+#ifdef HAVE_G_TYPE_INIT
+ g_type_init ();
+#endif
+
+ schemas = g_settings_list_schemas ();
+ if (schemas == NULL) return;
+ while (! schema_found && *schemas != NULL)
+ schema_found = strcmp (*schemas++, GSETTINGS_SCHEMA) == 0;
+ if (!schema_found) return;
+
+ gsettings_client = g_settings_new (GSETTINGS_SCHEMA);
+ if (!gsettings_client) return;
+ g_object_ref_sink (G_OBJECT (gsettings_client));
+ g_signal_connect (G_OBJECT (gsettings_client), "changed",
+ G_CALLBACK (something_changed_gsettingsCB), NULL);
+
+ val = g_settings_get_value (gsettings_client, GSETTINGS_TOOL_BAR_STYLE);
+ if (val)
+ {
+ g_variant_ref_sink (val);
+ if (g_variant_is_of_type (val, G_VARIANT_TYPE_STRING))
+ current_tool_bar_style
+ = map_tool_bar_style (g_variant_get_string (val, NULL));
+ g_variant_unref (val);
+ }
+
+#ifdef HAVE_XFT
+ val = g_settings_get_value (gsettings_client, GSETTINGS_MONO_FONT);
+ if (val)
+ {
+ g_variant_ref_sink (val);
+ if (g_variant_is_of_type (val, G_VARIANT_TYPE_STRING))
+ current_mono_font = xstrdup (g_variant_get_string (val, NULL));
+ g_variant_unref (val);
+ }
+
+ val = g_settings_get_value (gsettings_client, GSETTINGS_FONT_NAME);
+ if (val)
+ {
+ g_variant_ref_sink (val);
+ if (g_variant_is_of_type (val, G_VARIANT_TYPE_STRING))
+ current_font = xstrdup (g_variant_get_string (val, NULL));
+ g_variant_unref (val);
+ }
+#endif /* HAVE_XFT */
+
+#endif /* HAVE_GSETTINGS */
+}
+
+/* Init GConf and read startup values. */
static void
init_gconf (void)
{
-#if defined (HAVE_GCONF) && defined (HAVE_XFT)
+#if defined (HAVE_GCONF)
char *s;
#ifdef HAVE_G_TYPE_INIT
g_type_init ();
#endif
+
gconf_client = gconf_client_get_default ();
- s = gconf_client_get_string (gconf_client, SYSTEM_MONO_FONT, NULL);
+ gconf_client_set_error_handling (gconf_client, GCONF_CLIENT_HANDLE_NONE);
+ gconf_client_add_dir (gconf_client,
+ GCONF_TOOL_BAR_STYLE,
+ GCONF_CLIENT_PRELOAD_ONELEVEL,
+ NULL);
+ gconf_client_notify_add (gconf_client,
+ GCONF_TOOL_BAR_STYLE,
+ something_changed_gconfCB,
+ NULL, NULL, NULL);
+
+ s = gconf_client_get_string (gconf_client, GCONF_TOOL_BAR_STYLE, NULL);
+ if (s)
+ {
+ current_tool_bar_style = map_tool_bar_style (s);
+ g_free (s);
+ }
+
+#ifdef HAVE_XFT
+ s = gconf_client_get_string (gconf_client, GCONF_MONO_FONT, NULL);
if (s)
{
current_mono_font = xstrdup (s);
g_free (s);
}
- s = gconf_client_get_string (gconf_client, SYSTEM_FONT, NULL);
+ s = gconf_client_get_string (gconf_client, GCONF_FONT_NAME, NULL);
if (s)
{
current_font = xstrdup (s);
g_free (s);
}
- gconf_client_set_error_handling (gconf_client, GCONF_CLIENT_HANDLE_NONE);
gconf_client_add_dir (gconf_client,
- SYSTEM_MONO_FONT,
+ GCONF_MONO_FONT,
GCONF_CLIENT_PRELOAD_ONELEVEL,
NULL);
gconf_client_notify_add (gconf_client,
- SYSTEM_MONO_FONT,
- something_changedCB,
+ GCONF_MONO_FONT,
+ something_changed_gconfCB,
NULL, NULL, NULL);
-#endif /* HAVE_GCONF && HAVE_XFT */
+ gconf_client_add_dir (gconf_client,
+ GCONF_FONT_NAME,
+ GCONF_CLIENT_PRELOAD_ONELEVEL,
+ NULL);
+ gconf_client_notify_add (gconf_client,
+ GCONF_FONT_NAME,
+ something_changed_gconfCB,
+ NULL, NULL, NULL);
+#endif /* HAVE_XFT */
+#endif /* HAVE_GCONF */
}
+/* Init Xsettings and read startup values. */
+
static void
init_xsettings (struct x_display_info *dpyinfo)
{
Display *dpy = dpyinfo->display;
- BLOCK_INPUT;
+ block_input ();
/* Select events so we can detect client messages sent when selection
owner changes. */
if (dpyinfo->xsettings_window != None)
read_and_apply_settings (dpyinfo, False);
- UNBLOCK_INPUT;
+ unblock_input ();
}
void
if (first_dpyinfo == NULL) first_dpyinfo = dpyinfo;
init_gconf ();
init_xsettings (dpyinfo);
+ init_gsettings ();
}
+/* Return the system monospaced font.
+ May be NULL if not known. */
+
const char *
xsettings_get_system_font (void)
{
}
#ifdef USE_LUCID
+/* Return the system font.
+ May be NULL if not known. */
+
const char *
xsettings_get_system_normal_font (void)
{
current_mono_font = NULL;
current_font = NULL;
first_dpyinfo = NULL;
+#ifdef HAVE_GSETTINGS
+ gsettings_client = NULL;
+#endif
#ifdef HAVE_GCONF
gconf_client = NULL;
#endif
- Qmonospace_font_name = intern_c_string ("monospace-font-name");
- staticpro (&Qmonospace_font_name);
- Qfont_name = intern_c_string ("font-name");
- staticpro (&Qfont_name);
- Qfont_render = intern_c_string ("font-render");
- staticpro (&Qfont_render);
+ DEFSYM (Qmonospace_font_name, "monospace-font-name");
+ DEFSYM (Qfont_name, "font-name");
+ DEFSYM (Qfont_render, "font-render");
defsubr (&Sfont_get_system_font);
defsubr (&Sfont_get_system_normal_font);
DEFVAR_BOOL ("font-use-system-font", use_system_font,
- doc: /* *Non-nil means to apply the system defined font dynamically.
+ doc: /* Non-nil means to apply the system defined font dynamically.
When this is non-nil and the system defined fixed width font changes, we
update frames dynamically.
If this variable is nil, Emacs ignores system font changes. */);
DEFVAR_LISP ("xft-settings", Vxft_settings,
doc: /* Font settings applied to Xft. */);
- Vxft_settings = make_string ("", 0);
+ Vxft_settings = empty_unibyte_string;
#ifdef HAVE_XFT
Fprovide (intern_c_string ("font-render-setting"), Qnil);
-#ifdef HAVE_GCONF
+#if defined (HAVE_GCONF) || defined (HAVE_GSETTINGS)
Fprovide (intern_c_string ("system-font-setting"), Qnil);
#endif
#endif
current_tool_bar_style = Qnil;
- Qtool_bar_style = intern_c_string ("tool-bar-style");
- staticpro (&Qtool_bar_style);
+ DEFSYM (Qtool_bar_style, "tool-bar-style");
defsubr (&Stool_bar_get_system_style);
Fprovide (intern_c_string ("dynamic-setting"), Qnil);