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gtk2/gtk/gtksettings.c
Owen Taylor acbe4f18e9 Privately export: _gtk_settings_set_property_value_from_rc() 
Wed Oct  2 08:47:31 2002  Owen Taylor  <otaylor@redhat.com>

        * gtk/gtksettings.[ch]: Privately export:
        _gtk_settings_set_property_value_from_rc()
        _gtk_settings_reset_rc_values() so that we can reset
        settings set from RC files when reloading RC files.
        (#94610)

        * gtk/gtkrc.c: Hook up RC file setting resetting.
2002-10-02 14:22:31 +00:00

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/* GTK - The GIMP Toolkit
* Copyright (C) 2000 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "gtksettings.h"
#include "gtkrc.h"
#include "gtkintl.h"
#include "gtkwidget.h"
typedef struct _GtkSettingsValuePrivate GtkSettingsValuePrivate;
struct _GtkSettingsValuePrivate
{
GtkSettingsValue public;
guint from_rc : 1;
};
struct _GtkSettingsPropertyValue
{
GValue value;
guint from_rc : 1;
};
enum {
PROP_0,
PROP_DOUBLE_CLICK_TIME,
PROP_CURSOR_BLINK,
PROP_CURSOR_BLINK_TIME,
PROP_SPLIT_CURSOR,
PROP_THEME_NAME,
PROP_KEY_THEME_NAME,
PROP_MENU_BAR_ACCEL,
PROP_DND_DRAG_THRESHOLD,
PROP_FONT_NAME,
PROP_ICON_SIZES
};
/* --- prototypes --- */
static void gtk_settings_init (GtkSettings *settings);
static void gtk_settings_class_init (GtkSettingsClass *class);
static void gtk_settings_finalize (GObject *object);
static void gtk_settings_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gtk_settings_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_settings_notify (GObject *object,
GParamSpec *pspec);
static guint settings_install_property_parser (GtkSettingsClass *class,
GParamSpec *pspec,
GtkRcPropertyParser parser);
/* --- variables --- */
static gpointer parent_class = NULL;
static GQuark quark_property_parser = 0;
static GSList *object_list = NULL;
static guint class_n_properties = 0;
/* --- functions --- */
GType
gtk_settings_get_type (void)
{
static GType settings_type = 0;
if (!settings_type)
{
static const GTypeInfo settings_info =
{
sizeof (GtkSettingsClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_settings_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkSettings),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_settings_init,
};
settings_type = g_type_register_static (G_TYPE_OBJECT, "GtkSettings", &settings_info, 0);
}
return settings_type;
}
static void
gtk_settings_init (GtkSettings *settings)
{
GParamSpec **pspecs, **p;
guint i = 0;
g_datalist_init (&settings->queued_settings);
object_list = g_slist_prepend (object_list, settings);
/* build up property array for all yet existing properties and queue
* notification for them (at least notification for internal properties
* will instantly be caught)
*/
pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), NULL);
for (p = pspecs; *p; p++)
if ((*p)->owner_type == G_OBJECT_TYPE (settings))
i++;
settings->property_values = g_new0 (GtkSettingsPropertyValue, i);
i = 0;
g_object_freeze_notify (G_OBJECT (settings));
for (p = pspecs; *p; p++)
{
GParamSpec *pspec = *p;
if (pspec->owner_type != G_OBJECT_TYPE (settings))
continue;
g_value_init (&settings->property_values[i].value, G_PARAM_SPEC_VALUE_TYPE (pspec));
g_param_value_set_default (pspec, &settings->property_values[i].value);
g_object_notify (G_OBJECT (settings), pspec->name);
settings->property_values[i].from_rc = FALSE;
i++;
}
g_object_thaw_notify (G_OBJECT (settings));
g_free (pspecs);
}
static void
gtk_settings_class_init (GtkSettingsClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
guint result;
parent_class = g_type_class_peek_parent (class);
gobject_class->finalize = gtk_settings_finalize;
gobject_class->get_property = gtk_settings_get_property;
gobject_class->set_property = gtk_settings_set_property;
gobject_class->notify = gtk_settings_notify;
quark_property_parser = g_quark_from_static_string ("gtk-rc-property-parser");
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-double-click-time",
_("Double Click Time"),
_("Maximum time allowed between two clicks for them to be considered a double click (in milliseconds)"),
0, G_MAXINT, 250,
G_PARAM_READWRITE),
NULL);
g_assert (result == PROP_DOUBLE_CLICK_TIME);
result = settings_install_property_parser (class,
g_param_spec_boolean ("gtk-cursor-blink",
_("Cursor Blink"),
_("Whether the cursor should blink"),
TRUE,
G_PARAM_READWRITE),
NULL);
g_assert (result == PROP_CURSOR_BLINK);
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-cursor-blink-time",
_("Cursor Blink Time"),
_("Length of the cursor blink cycle, in milleseconds"),
100, G_MAXINT, 1200,
G_PARAM_READWRITE),
NULL);
g_assert (result == PROP_CURSOR_BLINK_TIME);
result = settings_install_property_parser (class,
g_param_spec_boolean ("gtk-split-cursor",
_("Split Cursor"),
_("Whether two cursors should be displayed for mixed left-to-right and right-to-left text"),
TRUE,
G_PARAM_READWRITE),
NULL);
g_assert (result == PROP_SPLIT_CURSOR);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-theme-name",
_("Theme Name"),
_("Name of theme RC file to load"),
"Default",
G_PARAM_READWRITE),
NULL);
g_assert (result == PROP_THEME_NAME);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-key-theme-name",
_("Key Theme Name"),
_("Name of key theme RC file to load"),
NULL,
G_PARAM_READWRITE),
NULL);
g_assert (result == PROP_KEY_THEME_NAME);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-menu-bar-accel",
_("Menu bar accelerator"),
_("Keybinding to activate the menu bar"),
"F10",
G_PARAM_READWRITE),
NULL);
g_assert (result == PROP_MENU_BAR_ACCEL);
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-dnd-drag-threshold",
_("Drag threshold"),
_("Number of pixels the cursor can move before dragging"),
1, G_MAXINT, 8,
G_PARAM_READWRITE),
NULL);
g_assert (result == PROP_DND_DRAG_THRESHOLD);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-font-name",
_("Font Name"),
_("Name of default font to use"),
"Sans 10",
G_PARAM_READWRITE),
NULL);
g_assert (result == PROP_FONT_NAME);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-icon-sizes",
_("Icon Sizes"),
_("List of icon sizes (gtk-menu=16,16;gtk-button=20,20..."),
NULL,
G_PARAM_READWRITE),
NULL);
g_assert (result == PROP_ICON_SIZES);
}
static void
gtk_settings_finalize (GObject *object)
{
GtkSettings *settings = GTK_SETTINGS (object);
guint i;
object_list = g_slist_remove (object_list, settings);
for (i = 0; i < class_n_properties; i++)
g_value_unset (&settings->property_values[i].value);
g_free (settings->property_values);
g_datalist_clear (&settings->queued_settings);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/**
* gtk_settings_get_for_screen:
* @screen : a #GdkScreen.
*
* Gets the #GtkSettings object for @screen, creating it if necessary.
*
* Return value: a #GtkSettings object.
*/
GtkSettings*
gtk_settings_get_for_screen (GdkScreen *screen)
{
GtkSettings *settings;
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
settings = g_object_get_data (G_OBJECT (screen), "gtk-settings");
if (!settings)
{
settings = g_object_new (GTK_TYPE_SETTINGS, NULL);
settings->screen = screen;
g_object_set_data (G_OBJECT (screen), "gtk-settings", settings);
gtk_rc_reparse_all_for_settings (settings, TRUE);
}
return settings;
}
/**
* gtk_settings_get_default:
*
* Gets the #GtkSettings object for the default GDK screen, creating
* it if necessary. See gtk_settings_get_for_screen().
*
* Return value: a #GtkSettings object. If there is no default
* screen, then returns %NULL.
**/
GtkSettings*
gtk_settings_get_default (void)
{
GdkScreen *screen = gdk_screen_get_default ();
if (screen)
return gtk_settings_get_for_screen (screen);
else
return NULL;
}
static void
gtk_settings_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GtkSettings *settings = GTK_SETTINGS (object);
g_value_copy (value, &settings->property_values[property_id - 1].value);
}
static void
gtk_settings_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GtkSettings *settings = GTK_SETTINGS (object);
GType value_type = G_VALUE_TYPE (value);
GType fundamental_type = G_TYPE_FUNDAMENTAL (value_type);
/* For enums and strings, we need to get the value as a string,
* not as an int, since we support using names/nicks as the setting
* value.
*/
if ((g_value_type_transformable (G_TYPE_INT, value_type) &&
!(fundamental_type == G_TYPE_ENUM || fundamental_type == G_TYPE_FLAGS)) ||
g_value_type_transformable (G_TYPE_STRING, G_VALUE_TYPE (value)) ||
g_value_type_transformable (GDK_TYPE_COLOR, G_VALUE_TYPE (value)))
{
if (gdk_screen_get_setting (settings->screen, pspec->name, value))
g_param_value_validate (pspec, value);
else
g_value_copy (&settings->property_values[property_id - 1].value, value);
}
else
{
GValue val = { 0, };
/* Try to get xsetting as a string and parse it. */
g_value_init (&val, G_TYPE_STRING);
if (!gdk_screen_get_setting (settings->screen, pspec->name, &val))
{
g_value_copy (&settings->property_values[property_id - 1].value, value);
}
else
{
GValue tmp_value = { 0, };
GValue gstring_value = { 0, };
GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
g_value_init (&gstring_value, G_TYPE_GSTRING);
g_value_set_boxed (&gstring_value,
g_string_new (g_value_get_string (&val)));
g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
if (parser && _gtk_settings_parse_convert (parser, &gstring_value,
pspec, &tmp_value))
{
g_value_copy (&tmp_value, value);
g_param_value_validate (pspec, value);
}
else
{
g_value_copy (&settings->property_values[property_id - 1].value, value);
}
g_value_unset (&gstring_value);
g_value_unset (&tmp_value);
}
g_value_unset (&val);
}
}
static void
gtk_settings_notify (GObject *object,
GParamSpec *pspec)
{
GtkSettings *settings = GTK_SETTINGS (object);
guint property_id = pspec->param_id;
gint double_click_time;
if (settings->screen == NULL) /* initialization */
return;
switch (property_id)
{
case PROP_DOUBLE_CLICK_TIME:
{
GdkDisplay *display;
g_object_get (object, pspec->name, &double_click_time, NULL);
display = gdk_screen_get_display (settings->screen);
if (settings->screen == gdk_display_get_screen (display, 0))
gdk_display_set_double_click_time (display, double_click_time);
break;
}
}
}
gboolean
_gtk_settings_parse_convert (GtkRcPropertyParser parser,
const GValue *src_value,
GParamSpec *pspec,
GValue *dest_value)
{
gboolean success = FALSE;
g_return_val_if_fail (G_VALUE_HOLDS (dest_value, G_PARAM_SPEC_VALUE_TYPE (pspec)), FALSE);
if (parser)
{
GString *gstring;
gboolean free_gstring = TRUE;
if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
{
gstring = g_value_get_boxed (src_value);
free_gstring = FALSE;
}
else if (G_VALUE_HOLDS_LONG (src_value))
{
gstring = g_string_new ("");
g_string_append_printf (gstring, "%ld", g_value_get_long (src_value));
}
else if (G_VALUE_HOLDS_DOUBLE (src_value))
{
gstring = g_string_new ("");
g_string_append_printf (gstring, "%f", g_value_get_double (src_value));
}
else if (G_VALUE_HOLDS_STRING (src_value))
{
gchar *tstr = g_strescape (g_value_get_string (src_value), NULL);
gstring = g_string_new ("\"");
g_string_append (gstring, tstr);
g_string_append_c (gstring, '\"');
g_free (tstr);
}
else
{
g_return_val_if_fail (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING), FALSE);
gstring = NULL; /* silence compiler */
}
success = (parser (pspec, gstring, dest_value) &&
!g_param_value_validate (pspec, dest_value));
if (free_gstring)
g_string_free (gstring, TRUE);
}
else if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
{
if (G_VALUE_HOLDS (dest_value, G_TYPE_STRING))
{
GString *gstring = g_value_get_boxed (src_value);
g_value_set_string (dest_value, gstring ? gstring->str : NULL);
success = !g_param_value_validate (pspec, dest_value);
}
}
else if (g_value_type_transformable (G_VALUE_TYPE (src_value), G_VALUE_TYPE (dest_value)))
success = g_param_value_convert (pspec, src_value, dest_value, TRUE);
return success;
}
static void
apply_queued_setting (GtkSettings *data,
GParamSpec *pspec,
GtkSettingsValuePrivate *qvalue)
{
GValue tmp_value = { 0, };
GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
if (_gtk_settings_parse_convert (parser, &qvalue->public.value,
pspec, &tmp_value))
{
data->property_values[pspec->param_id - 1].from_rc = qvalue->from_rc;
g_object_set_property (G_OBJECT (data), pspec->name, &tmp_value);
}
else
{
gchar *debug = g_strdup_value_contents (&qvalue->public.value);
g_message ("%s: failed to retrieve property `%s' of type `%s' from rc file value \"%s\" of type `%s'",
qvalue->public.origin,
pspec->name,
g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
debug,
G_VALUE_TYPE_NAME (&tmp_value));
g_free (debug);
}
g_value_unset (&tmp_value);
}
static guint
settings_install_property_parser (GtkSettingsClass *class,
GParamSpec *pspec,
GtkRcPropertyParser parser)
{
GSList *node, *next;
switch (G_TYPE_FUNDAMENTAL (G_PARAM_SPEC_VALUE_TYPE (pspec)))
{
case G_TYPE_BOOLEAN:
case G_TYPE_UCHAR:
case G_TYPE_CHAR:
case G_TYPE_UINT:
case G_TYPE_INT:
case G_TYPE_ULONG:
case G_TYPE_LONG:
case G_TYPE_FLOAT:
case G_TYPE_DOUBLE:
case G_TYPE_STRING:
break;
default:
if (!parser)
{
g_warning (G_STRLOC ": parser needs to be specified for property \"%s\" of type `%s'",
pspec->name, g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
return 0;
}
}
if (g_object_class_find_property (G_OBJECT_CLASS (class), pspec->name))
{
g_warning (G_STRLOC ": an rc-data property \"%s\" already exists",
pspec->name);
return 0;
}
for (node = object_list; node; node = node->next)
g_object_freeze_notify (node->data);
g_object_class_install_property (G_OBJECT_CLASS (class), ++class_n_properties, pspec);
g_param_spec_set_qdata (pspec, quark_property_parser, (gpointer) parser);
for (node = object_list; node; node = node->next)
{
GtkSettings *settings = node->data;
GtkSettingsValuePrivate *qvalue;
settings->property_values = g_renew (GtkSettingsPropertyValue, settings->property_values, class_n_properties);
settings->property_values[class_n_properties - 1].value.g_type = 0;
g_value_init (&settings->property_values[class_n_properties - 1].value, G_PARAM_SPEC_VALUE_TYPE (pspec));
g_param_value_set_default (pspec, &settings->property_values[class_n_properties - 1].value);
settings->property_values[class_n_properties - 1].from_rc = FALSE;
g_object_notify (G_OBJECT (settings), pspec->name);
qvalue = g_datalist_get_data (&settings->queued_settings, pspec->name);
if (qvalue)
apply_queued_setting (settings, pspec, qvalue);
}
for (node = object_list; node; node = next)
{
next = node->next;
g_object_thaw_notify (node->data);
}
return class_n_properties;
}
GtkRcPropertyParser
_gtk_rc_property_parser_from_type (GType type)
{
if (type == GDK_TYPE_COLOR)
return gtk_rc_property_parse_color;
else if (type == GTK_TYPE_REQUISITION)
return gtk_rc_property_parse_requisition;
else if (type == GTK_TYPE_BORDER)
return gtk_rc_property_parse_border;
else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_ENUM && G_TYPE_IS_DERIVED (type))
return gtk_rc_property_parse_enum;
else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_FLAGS && G_TYPE_IS_DERIVED (type))
return gtk_rc_property_parse_flags;
else
return NULL;
}
void
gtk_settings_install_property (GParamSpec *pspec)
{
GtkRcPropertyParser parser;
g_return_if_fail (G_IS_PARAM_SPEC (pspec));
parser = _gtk_rc_property_parser_from_type (G_PARAM_SPEC_VALUE_TYPE (pspec));
settings_install_property_parser (gtk_type_class (GTK_TYPE_SETTINGS), pspec, parser);
}
void
gtk_settings_install_property_parser (GParamSpec *pspec,
GtkRcPropertyParser parser)
{
g_return_if_fail (G_IS_PARAM_SPEC (pspec));
g_return_if_fail (parser != NULL);
settings_install_property_parser (gtk_type_class (GTK_TYPE_SETTINGS), pspec, parser);
}
static void
free_value (gpointer data)
{
GtkSettingsValuePrivate *qvalue = data;
g_value_unset (&qvalue->public.value);
g_free (qvalue->public.origin);
g_free (qvalue);
}
static void
gtk_settings_set_property_value_internal (GtkSettings *settings,
const gchar *prop_name,
const GtkSettingsValue *new_value,
gboolean from_rc)
{
GtkSettingsValuePrivate *qvalue;
GParamSpec *pspec;
gchar *name;
GQuark name_quark;
if (!G_VALUE_HOLDS_LONG (&new_value->value) &&
!G_VALUE_HOLDS_DOUBLE (&new_value->value) &&
!G_VALUE_HOLDS_STRING (&new_value->value) &&
!G_VALUE_HOLDS (&new_value->value, G_TYPE_GSTRING))
{
g_warning (G_STRLOC ": value type invalid");
return;
}
name = g_strdup (prop_name);
g_strcanon (name, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "-", '-');
name_quark = g_quark_from_string (name);
g_free (name);
qvalue = g_datalist_id_get_data (&settings->queued_settings, name_quark);
if (!qvalue)
{
qvalue = g_new0 (GtkSettingsValuePrivate, 1);
g_datalist_id_set_data_full (&settings->queued_settings, name_quark, qvalue, free_value);
}
else
{
g_free (qvalue->public.origin);
g_value_unset (&qvalue->public.value);
}
qvalue->public.origin = g_strdup (new_value->origin);
g_value_init (&qvalue->public.value, G_VALUE_TYPE (&new_value->value));
g_value_copy (&new_value->value, &qvalue->public.value);
qvalue->from_rc = from_rc;
pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (settings), g_quark_to_string (name_quark));
if (pspec)
apply_queued_setting (settings, pspec, qvalue);
}
void
gtk_settings_set_property_value (GtkSettings *settings,
const gchar *prop_name,
const GtkSettingsValue *new_value)
{
g_return_if_fail (GTK_SETTINGS (settings));
g_return_if_fail (prop_name != NULL);
g_return_if_fail (new_value != NULL);
g_return_if_fail (new_value->origin != NULL);
gtk_settings_set_property_value_internal (settings, prop_name, new_value, FALSE);
}
void
_gtk_settings_set_property_value_from_rc (GtkSettings *settings,
const gchar *prop_name,
const GtkSettingsValue *new_value)
{
g_return_if_fail (GTK_SETTINGS (settings));
g_return_if_fail (prop_name != NULL);
g_return_if_fail (new_value != NULL);
g_return_if_fail (new_value->origin != NULL);
gtk_settings_set_property_value_internal (settings, prop_name, new_value, TRUE);
}
void
gtk_settings_set_string_property (GtkSettings *settings,
const gchar *name,
const gchar *v_string,
const gchar *origin)
{
GtkSettingsValue svalue = { NULL, { 0, }, };
g_return_if_fail (GTK_SETTINGS (settings));
g_return_if_fail (name != NULL);
g_return_if_fail (v_string != NULL);
g_return_if_fail (origin != NULL);
svalue.origin = (gchar*) origin;
g_value_init (&svalue.value, G_TYPE_STRING);
g_value_set_static_string (&svalue.value, v_string);
gtk_settings_set_property_value (settings, name, &svalue);
g_value_unset (&svalue.value);
}
void
gtk_settings_set_long_property (GtkSettings *settings,
const gchar *name,
glong v_long,
const gchar *origin)
{
GtkSettingsValue svalue = { NULL, { 0, }, };
g_return_if_fail (GTK_SETTINGS (settings));
g_return_if_fail (name != NULL);
g_return_if_fail (origin != NULL);
svalue.origin = (gchar*) origin;
g_value_init (&svalue.value, G_TYPE_LONG);
g_value_set_long (&svalue.value, v_long);
gtk_settings_set_property_value (settings, name, &svalue);
g_value_unset (&svalue.value);
}
void
gtk_settings_set_double_property (GtkSettings *settings,
const gchar *name,
gdouble v_double,
const gchar *origin)
{
GtkSettingsValue svalue = { NULL, { 0, }, };
g_return_if_fail (GTK_SETTINGS (settings));
g_return_if_fail (name != NULL);
g_return_if_fail (origin != NULL);
svalue.origin = (gchar*) origin;
g_value_init (&svalue.value, G_TYPE_DOUBLE);
g_value_set_double (&svalue.value, v_double);
gtk_settings_set_property_value (settings, name, &svalue);
g_value_unset (&svalue.value);
}
gboolean
gtk_rc_property_parse_color (const GParamSpec *pspec,
const GString *gstring,
GValue *property_value)
{
GdkColor color = { 0, 0, 0, 0, };
GScanner *scanner;
gboolean success;
g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
g_return_val_if_fail (G_VALUE_HOLDS (property_value, GDK_TYPE_COLOR), FALSE);
scanner = gtk_rc_scanner_new ();
g_scanner_input_text (scanner, gstring->str, gstring->len);
if (gtk_rc_parse_color (scanner, &color) == G_TOKEN_NONE &&
g_scanner_get_next_token (scanner) == G_TOKEN_EOF)
{
g_value_set_boxed (property_value, &color);
success = TRUE;
}
else
success = FALSE;
g_scanner_destroy (scanner);
return success;
}
gboolean
gtk_rc_property_parse_enum (const GParamSpec *pspec,
const GString *gstring,
GValue *property_value)
{
gboolean need_closing_brace = FALSE, success = FALSE;
GScanner *scanner;
GEnumValue *enum_value = NULL;
g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
g_return_val_if_fail (G_VALUE_HOLDS_ENUM (property_value), FALSE);
scanner = gtk_rc_scanner_new ();
g_scanner_input_text (scanner, gstring->str, gstring->len);
/* we just want to parse _one_ value, but for consistency with flags parsing
* we support optional paranthesis
*/
g_scanner_get_next_token (scanner);
if (scanner->token == '(')
{
need_closing_brace = TRUE;
g_scanner_get_next_token (scanner);
}
if (scanner->token == G_TOKEN_IDENTIFIER)
{
GEnumClass *class = G_PARAM_SPEC_ENUM (pspec)->enum_class;
enum_value = g_enum_get_value_by_name (class, scanner->value.v_identifier);
if (!enum_value)
enum_value = g_enum_get_value_by_nick (class, scanner->value.v_identifier);
if (enum_value)
{
g_value_set_enum (property_value, enum_value->value);
success = TRUE;
}
}
else if (scanner->token == G_TOKEN_INT)
{
g_value_set_enum (property_value, scanner->value.v_int);
success = TRUE;
}
if (need_closing_brace && g_scanner_get_next_token (scanner) != ')')
success = FALSE;
if (g_scanner_get_next_token (scanner) != G_TOKEN_EOF)
success = FALSE;
g_scanner_destroy (scanner);
return success;
}
static guint
parse_flags_value (GScanner *scanner,
GFlagsClass *class,
guint *number)
{
g_scanner_get_next_token (scanner);
if (scanner->token == G_TOKEN_IDENTIFIER)
{
GFlagsValue *flags_value;
flags_value = g_flags_get_value_by_name (class, scanner->value.v_identifier);
if (!flags_value)
flags_value = g_flags_get_value_by_nick (class, scanner->value.v_identifier);
if (flags_value)
{
*number |= flags_value->value;
return G_TOKEN_NONE;
}
}
else if (scanner->token == G_TOKEN_INT)
{
*number |= scanner->value.v_int;
return G_TOKEN_NONE;
}
return G_TOKEN_IDENTIFIER;
}
gboolean
gtk_rc_property_parse_flags (const GParamSpec *pspec,
const GString *gstring,
GValue *property_value)
{
GFlagsClass *class;
gboolean success = FALSE;
GScanner *scanner;
g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
g_return_val_if_fail (G_VALUE_HOLDS_FLAGS (property_value), FALSE);
class = G_PARAM_SPEC_FLAGS (pspec)->flags_class;
scanner = gtk_rc_scanner_new ();
g_scanner_input_text (scanner, gstring->str, gstring->len);
/* parse either a single flags value or a "\( ... [ \| ... ] \)" compound */
if (g_scanner_peek_next_token (scanner) == G_TOKEN_IDENTIFIER ||
scanner->next_token == G_TOKEN_INT)
{
guint token, flags_value = 0;
token = parse_flags_value (scanner, class, &flags_value);
if (token == G_TOKEN_NONE && g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
{
success = TRUE;
g_value_set_flags (property_value, flags_value);
}
}
else if (g_scanner_get_next_token (scanner) == '(')
{
guint token, flags_value = 0;
/* parse first value */
token = parse_flags_value (scanner, class, &flags_value);
/* parse nth values, preceeded by '|' */
while (token == G_TOKEN_NONE && g_scanner_get_next_token (scanner) == '|')
token = parse_flags_value (scanner, class, &flags_value);
/* done, last token must have closed expression */
if (token == G_TOKEN_NONE && scanner->token == ')' &&
g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
{
g_value_set_flags (property_value, flags_value);
success = TRUE;
}
}
g_scanner_destroy (scanner);
return success;
}
static gboolean
get_braced_int (GScanner *scanner,
gboolean first,
gboolean last,
gint *value)
{
if (first)
{
g_scanner_get_next_token (scanner);
if (scanner->token != '{')
return FALSE;
}
g_scanner_get_next_token (scanner);
if (scanner->token != G_TOKEN_INT)
return FALSE;
*value = scanner->value.v_int;
if (last)
{
g_scanner_get_next_token (scanner);
if (scanner->token != '}')
return FALSE;
}
else
{
g_scanner_get_next_token (scanner);
if (scanner->token != ',')
return FALSE;
}
return TRUE;
}
gboolean
gtk_rc_property_parse_requisition (const GParamSpec *pspec,
const GString *gstring,
GValue *property_value)
{
GtkRequisition requisition;
GScanner *scanner;
gboolean success = FALSE;
g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
scanner = gtk_rc_scanner_new ();
g_scanner_input_text (scanner, gstring->str, gstring->len);
if (get_braced_int (scanner, TRUE, FALSE, &requisition.width) &&
get_braced_int (scanner, FALSE, TRUE, &requisition.height))
{
g_value_set_boxed (property_value, &requisition);
success = TRUE;
}
g_scanner_destroy (scanner);
return success;
}
gboolean
gtk_rc_property_parse_border (const GParamSpec *pspec,
const GString *gstring,
GValue *property_value)
{
GtkBorder border;
GScanner *scanner;
gboolean success = FALSE;
g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
scanner = gtk_rc_scanner_new ();
g_scanner_input_text (scanner, gstring->str, gstring->len);
if (get_braced_int (scanner, TRUE, FALSE, &border.left) &&
get_braced_int (scanner, FALSE, FALSE, &border.right) &&
get_braced_int (scanner, FALSE, FALSE, &border.top) &&
get_braced_int (scanner, FALSE, TRUE, &border.bottom))
{
g_value_set_boxed (property_value, &border);
success = TRUE;
}
g_scanner_destroy (scanner);
return success;
}
void
_gtk_settings_handle_event (GdkEventSetting *event)
{
GtkSettings *settings = gtk_settings_get_for_screen (gdk_drawable_get_screen (event->window));
if (g_object_class_find_property (G_OBJECT_GET_CLASS (settings), event->name))
g_object_notify (G_OBJECT (settings), event->name);
}
static void
reset_rc_values_foreach (GQuark key_id,
gpointer data,
gpointer user_data)
{
GtkSettingsValuePrivate *qvalue = data;
GSList **to_reset = user_data;
if (qvalue->from_rc)
*to_reset = g_slist_prepend (*to_reset, GUINT_TO_POINTER (key_id));
}
void
_gtk_settings_reset_rc_values (GtkSettings *settings)
{
GSList *to_reset = NULL;
GSList *tmp_list;
GParamSpec **pspecs, **p;
gint i;
/* Remove any queued settings
*/
g_datalist_foreach (&settings->queued_settings,
reset_rc_values_foreach,
&to_reset);
for (tmp_list = to_reset; tmp_list; tmp_list = tmp_list->next)
{
GQuark key_id = GPOINTER_TO_UINT (tmp_list->data);
g_datalist_id_remove_data (&settings->queued_settings, key_id);
}
/* Now reset the active settings
*/
pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), NULL);
i = 0;
g_object_freeze_notify (G_OBJECT (settings));
for (p = pspecs; *p; p++)
{
if (settings->property_values[i].from_rc)
{
GParamSpec *pspec = *p;
g_param_value_set_default (pspec, &settings->property_values[i].value);
g_object_notify (G_OBJECT (settings), pspec->name);
}
i++;
}
g_object_thaw_notify (G_OBJECT (settings));
g_free (pspecs);
}
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