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gtk2/gtk/gtksettings.c
Michael Natterer 7f374a74ba Add new infrastructure for notifications of failed keyboard navigation and 
2006-11-16  Michael Natterer  <mitch@imendio.com>

	Add new infrastructure for notifications of failed keyboard
	navigation and navigation with restricted set of keys.

	The patch handles configurable beeping, navigating the GUI with
	cursor keys only (as in phone environments), and configurable
	wrap-around. Fixes bugs #322640, #70986, #318827, #334726, #334742
	and #309291.

	* gtk/gtksettings.c: added properties gtk-keynav-cursor-only,
	gtk-keynav-wrap-around and gtk-error-bell.

	* gtk/gtkwidget.[ch]: added new signal "keynav-failed" and public
	API to emit it. Added New function gtk_widget_error_bell() which
	looks at the gtk-error-bell setting and calls gdk_window_beep()
	accordingly.

	* gtk/gtk.symbols: add the new widget symbols.

	* gtk/gtkcellrendereraccel.c
	* gtk/gtkimcontextsimple.c
	* gtk/gtkmenu.c
	* gtk/gtknotebook.c: use gtk_widget_error_bell() or look at the
	gtk-error-bell setting instead of calling gdk_display_beep()
	unconditionally.

	* gtk/gtkcombobox.c
	* gtk/gtkentry.c
	* gtk/gtkiconview.c
	* gtk/gtklabel.c
	* gtk/gtkmenushell.c
	* gtk/gtkspinbutton.c
	* gtk/gtktextview.c
	* gtk/gtktreeview.c: call gtk_widget_error_bell() on failed keynav.

	* gtk/gtkentry.c
	* gtk/gtklabel.c
	* gtk/gtkrange.c
	* gtk/gtktextview.c: consult gtk_widget_keynav_failed() on failed
	cursor navigation and leave the widget if it returns FALSE.

	* gtk/gtkmenushell.c
	* gtk/gtknotebook.c: only wrap around if gtk-keynav-wrap-around
	is TRUE.

	* gtk/gtkradiobutton.c: ask gtk_widget_keynav_failed() to decide
	whether to to wrap-around, and don't select active items on cursor
	navigation if gtk-keynav-cursor-only is TRUE. Should look at
	gtk-keynav-wrap-around too, will look into that.
2006-11-16 12:56:30 +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 <config.h>
#include <string.h>
#include "gtkmodules.h"
#include "gtksettings.h"
#include "gtkrc.h"
#include "gtkintl.h"
#include "gtkwidget.h"
#include "gtkprivate.h"
#include "gtkalias.h"
#ifdef GDK_WINDOWING_X11
#include "x11/gdkx.h"
#endif
#define DEFAULT_TIMEOUT_INITIAL 200
#define DEFAULT_TIMEOUT_REPEAT 20
#define DEFAULT_TIMEOUT_EXPAND 500
typedef struct _GtkSettingsValuePrivate GtkSettingsValuePrivate;
typedef enum
{
GTK_SETTINGS_SOURCE_DEFAULT,
GTK_SETTINGS_SOURCE_RC_FILE,
GTK_SETTINGS_SOURCE_XSETTING,
GTK_SETTINGS_SOURCE_APPLICATION
} GtkSettingsSource;
struct _GtkSettingsValuePrivate
{
GtkSettingsValue public;
GtkSettingsSource source;
};
struct _GtkSettingsPropertyValue
{
GValue value;
GtkSettingsSource source;
};
enum {
PROP_0,
PROP_DOUBLE_CLICK_TIME,
PROP_DOUBLE_CLICK_DISTANCE,
PROP_CURSOR_BLINK,
PROP_CURSOR_BLINK_TIME,
PROP_CURSOR_BLINK_TIMEOUT,
PROP_SPLIT_CURSOR,
PROP_THEME_NAME,
PROP_ICON_THEME_NAME,
PROP_FALLBACK_ICON_THEME,
PROP_KEY_THEME_NAME,
PROP_MENU_BAR_ACCEL,
PROP_DND_DRAG_THRESHOLD,
PROP_FONT_NAME,
PROP_ICON_SIZES,
PROP_MODULES,
#ifdef GDK_WINDOWING_X11
PROP_XFT_ANTIALIAS,
PROP_XFT_HINTING,
PROP_XFT_HINTSTYLE,
PROP_XFT_RGBA,
PROP_XFT_DPI,
PROP_CURSOR_THEME_NAME,
PROP_CURSOR_THEME_SIZE,
#endif
PROP_ALTERNATIVE_BUTTON_ORDER,
PROP_SHOW_INPUT_METHOD_MENU,
PROP_SHOW_UNICODE_MENU,
PROP_TIMEOUT_INITIAL,
PROP_TIMEOUT_REPEAT,
PROP_TIMEOUT_EXPAND,
PROP_COLOR_SCHEME,
PROP_ENABLE_ANIMATIONS,
PROP_TOUCHSCREEN_MODE,
PROP_KEYNAV_CURSOR_ONLY,
PROP_KEYNAV_WRAP_AROUND,
PROP_ERROR_BELL,
PROP_COLOR_HASH
};
/* --- prototypes --- */
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);
static void settings_update_double_click (GtkSettings *settings);
static void settings_update_modules (GtkSettings *settings);
#ifdef GDK_WINDOWING_X11
static void settings_update_cursor_theme (GtkSettings *settings);
static void settings_update_resolution (GtkSettings *settings);
static void settings_update_font_options (GtkSettings *settings);
#endif
static void settings_update_color_scheme (GtkSettings *settings);
static void merge_color_scheme (GtkSettings *settings,
GValue *value,
GtkSettingsSource source);
static gchar *get_color_scheme (GtkSettings *settings);
static GHashTable *get_color_hash (GtkSettings *settings);
/* --- variables --- */
static GQuark quark_property_parser = 0;
static GSList *object_list = NULL;
static guint class_n_properties = 0;
G_DEFINE_TYPE (GtkSettings, gtk_settings, G_TYPE_OBJECT)
/* --- functions --- */
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].source = GTK_SETTINGS_SOURCE_DEFAULT;
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;
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",
P_("Double Click Time"),
P_("Maximum time allowed between two clicks for them to be considered a double click (in milliseconds)"),
0, G_MAXINT, 250,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_DOUBLE_CLICK_TIME);
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-double-click-distance",
P_("Double Click Distance"),
P_("Maximum distance allowed between two clicks for them to be considered a double click (in pixels)"),
0, G_MAXINT, 5,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_DOUBLE_CLICK_DISTANCE);
/**
* GtkSettings:gtk-cursor-blink:
*
* Whether the cursor should blink.
*
* Also see the gtk-cursor-blink-timeout setting, which allows
* more flexible control over cursor blinking.
*/
result = settings_install_property_parser (class,
g_param_spec_boolean ("gtk-cursor-blink",
P_("Cursor Blink"),
P_("Whether the cursor should blink"),
TRUE,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_CURSOR_BLINK);
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-cursor-blink-time",
P_("Cursor Blink Time"),
P_("Length of the cursor blink cycle, in milliseconds"),
100, G_MAXINT, 1200,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_CURSOR_BLINK_TIME);
/**
* GtkSettings:gtk-cursor-blink-timeout:
*
* Time after which the cursor stops blinking, in seconds.
* The timer is reset after each user interaction.
*
* Setting this to zero has the same effect as setting
* gtk-cursor-blinks to %FALSE.
*
* Since: 2.12
*/
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-cursor-blink-timeout",
P_("Cursor Blink Timeout"),
P_("Time after which the cursor stops blinking, in seconds"),
1, G_MAXINT, G_MAXINT,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_CURSOR_BLINK_TIMEOUT);
result = settings_install_property_parser (class,
g_param_spec_boolean ("gtk-split-cursor",
P_("Split Cursor"),
P_("Whether two cursors should be displayed for mixed left-to-right and right-to-left text"),
TRUE,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_SPLIT_CURSOR);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-theme-name",
P_("Theme Name"),
P_("Name of theme RC file to load"),
"Raleigh",
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_THEME_NAME);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-icon-theme-name",
P_("Icon Theme Name"),
P_("Name of icon theme to use"),
"hicolor",
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_ICON_THEME_NAME);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-fallback-icon-theme",
P_("Fallback Icon Theme Name"),
P_("Name of a icon theme to fall back to"),
NULL,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_FALLBACK_ICON_THEME);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-key-theme-name",
P_("Key Theme Name"),
P_("Name of key theme RC file to load"),
NULL,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_KEY_THEME_NAME);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-menu-bar-accel",
P_("Menu bar accelerator"),
P_("Keybinding to activate the menu bar"),
"F10",
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_MENU_BAR_ACCEL);
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-dnd-drag-threshold",
P_("Drag threshold"),
P_("Number of pixels the cursor can move before dragging"),
1, G_MAXINT, 8,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_DND_DRAG_THRESHOLD);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-font-name",
P_("Font Name"),
P_("Name of default font to use"),
"Sans 10",
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_FONT_NAME);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-icon-sizes",
P_("Icon Sizes"),
P_("List of icon sizes (gtk-menu=16,16:gtk-button=20,20..."),
NULL,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_ICON_SIZES);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-modules",
P_("GTK Modules"),
P_("List of currently active GTK modules"),
NULL,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_MODULES);
#ifdef GDK_WINDOWING_X11
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-xft-antialias",
P_("Xft Antialias"),
P_("Whether to antialias Xft fonts; 0=no, 1=yes, -1=default"),
-1, 1, -1,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_XFT_ANTIALIAS);
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-xft-hinting",
P_("Xft Hinting"),
P_("Whether to hint Xft fonts; 0=no, 1=yes, -1=default"),
-1, 1, -1,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_XFT_HINTING);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-xft-hintstyle",
P_("Xft Hint Style"),
P_("What degree of hinting to use; hintnone, hintslight, hintmedium, or hintfull"),
NULL,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_XFT_HINTSTYLE);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-xft-rgba",
P_("Xft RGBA"),
P_("Type of subpixel antialiasing; none, rgb, bgr, vrgb, vbgr"),
NULL,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_XFT_RGBA);
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-xft-dpi",
P_("Xft DPI"),
P_("Resolution for Xft, in 1024 * dots/inch. -1 to use default value"),
-1, 1024*1024, -1,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_XFT_DPI);
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-cursor-theme-name",
P_("Cursor theme name"),
P_("Name of the cursor theme to use, or NULL to use the default theme"),
NULL,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_CURSOR_THEME_NAME);
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-cursor-theme-size",
P_("Cursor theme size"),
P_("Size to use for cursors, or 0 to use the default size"),
0, 128, 0,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_CURSOR_THEME_SIZE);
#endif /* GDK_WINDOWING_X11 */
result = settings_install_property_parser (class,
g_param_spec_boolean ("gtk-alternative-button-order",
P_("Alternative button order"),
P_("Whether buttons in dialogs should use the alternative button order"),
FALSE,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_ALTERNATIVE_BUTTON_ORDER);
result = settings_install_property_parser (class,
g_param_spec_boolean ("gtk-show-input-method-menu",
P_("Show the 'Input Methods' menu"),
P_("Whether the context menus of entries and text views should offer to change the input method"),
TRUE,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_SHOW_INPUT_METHOD_MENU);
result = settings_install_property_parser (class,
g_param_spec_boolean ("gtk-show-unicode-menu",
P_("Show the 'Insert Unicode Control Character' menu"),
P_("Whether the context menus of entries and text views should offer to insert control characters"),
TRUE,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_SHOW_UNICODE_MENU);
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-timeout-initial",
P_("Start timeout"),
P_("Starting value for timeouts, when button is pressed"),
0, G_MAXINT, DEFAULT_TIMEOUT_INITIAL,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_TIMEOUT_INITIAL);
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-timeout-repeat",
P_("Repeat timeout"),
P_("Repeat value for timeouts, when button is pressed"),
0, G_MAXINT, DEFAULT_TIMEOUT_REPEAT,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_TIMEOUT_REPEAT);
result = settings_install_property_parser (class,
g_param_spec_int ("gtk-timeout-expand",
P_("Expand timeout"),
P_("Expand value for timeouts, when a widget is expanding a new region"),
0, G_MAXINT, DEFAULT_TIMEOUT_EXPAND,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_TIMEOUT_EXPAND);
/**
* GtkSettings:gtk-color-scheme:
*
* A palette of named colors for use in themes. The format of the string is
* <programlisting>
* name1: color1
* name2: color2
* ...
* </programlisting>
* Color names must be acceptable as identifiers in the
* <link linkend="gtk-Resource-Files">gtkrc</link> syntax, and
* color specifications must be in the format accepted by
* gdk_color_parse().
*
* Note that due to the way the color tables from different sources are
* merged, color specifications will be converted to hexadecimal form
* when getting this property.
*
* Since: 2.10
*/
result = settings_install_property_parser (class,
g_param_spec_string ("gtk-color-scheme",
P_("Color scheme"),
P_("A palette of named colors for use in themes"),
"",
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_COLOR_SCHEME);
result = settings_install_property_parser (class,
g_param_spec_boolean ("gtk-enable-animations",
P_("Enable Animations"),
P_("Whether to enable toolkit-wide animations."),
TRUE,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_ENABLE_ANIMATIONS);
/**
* GtkSettings:gtk-touchscreen-mode:
*
* When %TRUE, there are no motion notify events delivered on this screen,
* and widgets can't use the pointer hovering them for any essential
* functionality.
*
* Since: 2.10
*/
result = settings_install_property_parser (class,
g_param_spec_boolean ("gtk-touchscreen-mode",
P_("Enable Touchscreen Mode"),
P_("When TRUE, there are no motion notify events delivered on this screen"),
FALSE,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_TOUCHSCREEN_MODE);
/**
* GtkSettings:gtk-keynav-cursor-only:
*
* When %TRUE, keyboard navigation should be able to reach all widgets
* by using the cursor keys only. Tab, Shift etc. keys can't be expected
* to be present on the used input device.
*
* Since: 2.12
*/
result = settings_install_property_parser (class,
g_param_spec_boolean ("gtk-keynav-cursor-only",
P_("Keynav Cursor Only"),
P_("When TRUE, there are only cursor keys available to navigate widgets"),
FALSE,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_KEYNAV_CURSOR_ONLY);
/**
* GtkSettings:gtk-keynav-wrap-around:
*
* When %TRUE, some widgets will wrap around when doing keyboard
* navigation, such as menus, menubars and notebooks.
*
* Since: 2.12
*/
result = settings_install_property_parser (class,
g_param_spec_boolean ("gtk-keynav-wrap-around",
P_("Keynav Wrap Around"),
P_("Whether to wrap around when keyboard-navigating widgets"),
TRUE,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_KEYNAV_WRAP_AROUND);
/**
* GtkSettings:gtk-error-bell:
*
* When %TRUE, keyboard navigation and other input-related errors
* will cause a beep. Since the error bell is implemented using
* gdk_window_beep(), the windowing system may offer ways to
* configure the error bell in many ways, such as flashing the
* window or similar visual effects.
*
* Since: 2.12
*/
result = settings_install_property_parser (class,
g_param_spec_boolean ("gtk-error-bell",
P_("Error Bell"),
P_("When TRUE, keyboard navigation and other errors will cause a beep"),
TRUE,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_ERROR_BELL);
/**
* GtkSettings:color-hash:
*
* Holds a hash table representation of the gtk-color-scheme setting,
* mapping color names to #GdkColor<!-- -->s.
*
* Since: 2.10
*/
g_object_class_install_property (gobject_class,
PROP_COLOR_HASH,
g_param_spec_boxed ("color-hash",
P_("Color Hash"),
P_("A hash table representation of the color scheme."),
G_TYPE_HASH_TABLE,
GTK_PARAM_READABLE));
class_n_properties++;
}
static void
gtk_settings_finalize (GObject *object)
{
GtkSettings *settings = GTK_SETTINGS (object);
guint i;
object_list = g_slist_remove (object_list, settings);
_gtk_rc_context_destroy (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 (gtk_settings_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.
*
* Since: 2.2
*/
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_full (G_OBJECT (screen), I_("gtk-settings"),
settings, g_object_unref);
gtk_rc_reparse_all_for_settings (settings, TRUE);
settings_update_double_click (settings);
#ifdef GDK_WINDOWING_X11
settings_update_cursor_theme (settings);
settings_update_resolution (settings);
settings_update_font_options (settings);
#endif
settings_update_color_scheme (settings);
}
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);
settings->property_values[property_id - 1].source = GTK_SETTINGS_SOURCE_APPLICATION;
}
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);
if (property_id == PROP_COLOR_HASH)
{
g_value_set_boxed (value, get_color_hash (settings));
return;
}
/* 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 (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
!gdk_screen_get_setting (settings->screen, pspec->name, value))
g_value_copy (&settings->property_values[property_id - 1].value, value);
else
{
if (pspec->param_id == PROP_COLOR_SCHEME)
{
merge_color_scheme (settings, value, GTK_SETTINGS_SOURCE_XSETTING);
g_value_take_string (value, get_color_scheme (settings));
}
g_param_value_validate (pspec, value);
}
}
else
{
GValue val = { 0, };
/* Try to get xsetting as a string and parse it. */
g_value_init (&val, G_TYPE_STRING);
if (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
!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_take_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;
if (settings->screen == NULL) /* initialization */
return;
switch (property_id)
{
case PROP_MODULES:
settings_update_modules (settings);
break;
case PROP_DOUBLE_CLICK_TIME:
case PROP_DOUBLE_CLICK_DISTANCE:
settings_update_double_click (settings);
break;
case PROP_COLOR_SCHEME:
settings_update_color_scheme (settings);
break;
#ifdef GDK_WINDOWING_X11
case PROP_XFT_DPI:
settings_update_resolution (settings);
/* This is a hack because with gtk_rc_reset_styles() doesn't get
* widgets with gtk_widget_style_set(), and also causes more
* recomputation than necessary.
*/
gtk_rc_reset_styles (GTK_SETTINGS (object));
break;
case PROP_XFT_ANTIALIAS:
case PROP_XFT_HINTING:
case PROP_XFT_HINTSTYLE:
case PROP_XFT_RGBA:
settings_update_font_options (settings);
gtk_rc_reset_styles (GTK_SETTINGS (object));
break;
case PROP_CURSOR_THEME_NAME:
case PROP_CURSOR_THEME_SIZE:
settings_update_cursor_theme (settings);
break;
#endif /* GDK_WINDOWING_X11 */
}
}
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 (NULL);
g_string_append_printf (gstring, "%ld", g_value_get_long (src_value));
}
else if (G_VALUE_HOLDS_DOUBLE (src_value))
{
gstring = g_string_new (NULL);
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))
{
if (pspec->param_id == PROP_COLOR_SCHEME)
{
merge_color_scheme (data, &tmp_value, qvalue->source);
g_object_set_property (G_OBJECT (data), pspec->name, &tmp_value);
data->property_values[pspec->param_id - 1].source = GTK_SETTINGS_SOURCE_DEFAULT;
}
else if (data->property_values[pspec->param_id - 1].source <= qvalue->source)
{
g_object_set_property (G_OBJECT (data), pspec->name, &tmp_value);
data->property_values[pspec->param_id - 1].source = qvalue->source;
}
}
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 ? qvalue->public.origin : "(for origin information, set GTK_DEBUG)",
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].source = GTK_SETTINGS_SOURCE_DEFAULT;
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,
GtkSettingsSource source)
{
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_DIGITS "-" G_CSET_a_2_z G_CSET_A_2_Z, '-');
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->source = source;
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);
gtk_settings_set_property_value_internal (settings, prop_name, new_value,
GTK_SETTINGS_SOURCE_APPLICATION);
}
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);
gtk_settings_set_property_value_internal (settings, prop_name, new_value,
GTK_SETTINGS_SOURCE_RC_FILE);
}
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);
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);
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);
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);
}
/**
* gtk_rc_property_parse_color:
* @pspec: a #GParamSpec
* @gstring: the #GString to be parsed
* @property_value: a #GValue which must hold #GdkColor values.
*
* A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
* or gtk_widget_class_install_style_property_parser() which parses a
* color given either by its name or in the form
* <literal>{ red, green, blue }</literal> where %red, %green and
* %blue are integers between 0 and 65535 or floating-point numbers
* between 0 and 1.
*
* Return value: %TRUE if @gstring could be parsed and @property_value
* has been set to the resulting #GdkColor.
**/
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;
}
/**
* gtk_rc_property_parse_enum:
* @pspec: a #GParamSpec
* @gstring: the #GString to be parsed
* @property_value: a #GValue which must hold enum values.
*
* A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
* or gtk_widget_class_install_style_property_parser() which parses a single
* enumeration value.
*
* The enumeration value can be specified by its name, its nickname or
* its numeric value. For consistency with flags parsing, the value
* may be surrounded by parentheses.
*
* Return value: %TRUE if @gstring could be parsed and @property_value
* has been set to the resulting #GEnumValue.
**/
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 parenthesis
*/
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;
}
/**
* gtk_rc_property_parse_flags:
* @pspec: a #GParamSpec
* @gstring: the #GString to be parsed
* @property_value: a #GValue which must hold flags values.
*
* A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
* or gtk_widget_class_install_style_property_parser() which parses flags.
*
* Flags can be specified by their name, their nickname or
* numerically. Multiple flags can be specified in the form
* <literal>"( flag1 | flag2 | ... )"</literal>.
*
* Return value: %TRUE if @gstring could be parsed and @property_value
* has been set to the resulting flags value.
**/
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;
}
/**
* gtk_rc_property_parse_requisition:
* @pspec: a #GParamSpec
* @gstring: the #GString to be parsed
* @property_value: a #GValue which must hold boxed values.
*
* A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
* or gtk_widget_class_install_style_property_parser() which parses a
* requisition in the form
* <literal>"{ width, height }"</literal> for integers %width and %height.
*
* Return value: %TRUE if @gstring could be parsed and @property_value
* has been set to the resulting #GtkRequisition.
**/
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;
}
/**
* gtk_rc_property_parse_border:
* @pspec: a #GParamSpec
* @gstring: the #GString to be parsed
* @property_value: a #GValue which must hold boxed values.
*
* A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
* or gtk_widget_class_install_style_property_parser() which parses
* borders in the form
* <literal>"{ left, right, top, bottom }"</literal> for integers
* %left, %right, %top and %bottom.
*
* Return value: %TRUE if @gstring could be parsed and @property_value
* has been set to the resulting #GtkBorder.
**/
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->source == GTK_SETTINGS_SOURCE_RC_FILE)
*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);
}
g_slist_free (to_reset);
/* 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].source == GTK_SETTINGS_SOURCE_RC_FILE)
{
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);
}
static void
settings_update_double_click (GtkSettings *settings)
{
if (gdk_screen_get_number (settings->screen) == 0)
{
GdkDisplay *display = gdk_screen_get_display (settings->screen);
gint double_click_time;
gint double_click_distance;
g_object_get (settings,
"gtk-double-click-time", &double_click_time,
"gtk-double-click-distance", &double_click_distance,
NULL);
gdk_display_set_double_click_time (display, double_click_time);
gdk_display_set_double_click_distance (display, double_click_distance);
}
}
static void
settings_update_modules (GtkSettings *settings)
{
gchar *modules;
g_object_get (settings,
"gtk-modules", &modules,
NULL);
_gtk_modules_settings_changed (settings, modules);
g_free (modules);
}
#ifdef GDK_WINDOWING_X11
static void
settings_update_cursor_theme (GtkSettings *settings)
{
GdkDisplay *display = gdk_screen_get_display (settings->screen);
gchar *theme = NULL;
gint size = 0;
g_object_get (settings,
"gtk-cursor-theme-name", &theme,
"gtk-cursor-theme-size", &size,
NULL);
gdk_x11_display_set_cursor_theme (display, theme, size);
g_free (theme);
}
static void
settings_update_font_options (GtkSettings *settings)
{
gint hinting;
gchar *hint_style_str;
cairo_hint_style_t hint_style = CAIRO_HINT_STYLE_DEFAULT;
gint antialias;
cairo_antialias_t antialias_mode = CAIRO_ANTIALIAS_DEFAULT;
gchar *rgba_str;
cairo_subpixel_order_t subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT;
cairo_font_options_t *options;
g_object_get (settings,
"gtk-xft-antialias", &antialias,
"gtk-xft-hinting", &hinting,
"gtk-xft-hintstyle", &hint_style_str,
"gtk-xft-rgba", &rgba_str,
NULL);
options = cairo_font_options_create ();
/* hint_metrics = FALSE should never be set for user interface code.
*/
cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_ON);
if (hinting >= 0 && !hinting)
{
hint_style = CAIRO_HINT_STYLE_NONE;
}
else if (hint_style_str)
{
if (strcmp (hint_style_str, "hintnone") == 0)
hint_style = CAIRO_HINT_STYLE_NONE;
else if (strcmp (hint_style_str, "hintslight") == 0)
hint_style = CAIRO_HINT_STYLE_SLIGHT;
else if (strcmp (hint_style_str, "hintmedium") == 0)
hint_style = CAIRO_HINT_STYLE_MEDIUM;
else if (strcmp (hint_style_str, "hintfull") == 0)
hint_style = CAIRO_HINT_STYLE_FULL;
}
if (hint_style_str)
g_free (hint_style_str);
cairo_font_options_set_hint_style (options, hint_style);
if (rgba_str)
{
if (strcmp (rgba_str, "rgb") == 0)
subpixel_order = CAIRO_SUBPIXEL_ORDER_RGB;
else if (strcmp (rgba_str, "bgr") == 0)
subpixel_order = CAIRO_SUBPIXEL_ORDER_BGR;
else if (strcmp (rgba_str, "vrgb") == 0)
subpixel_order = CAIRO_SUBPIXEL_ORDER_VRGB;
else if (strcmp (rgba_str, "vbgr") == 0)
subpixel_order = CAIRO_SUBPIXEL_ORDER_VBGR;
g_free (rgba_str);
}
cairo_font_options_set_subpixel_order (options, subpixel_order);
if (antialias >= 0 && !antialias)
antialias_mode = CAIRO_ANTIALIAS_NONE;
else if (subpixel_order != CAIRO_SUBPIXEL_ORDER_DEFAULT)
antialias_mode = CAIRO_ANTIALIAS_SUBPIXEL;
else if (antialias >= 0)
antialias_mode = CAIRO_ANTIALIAS_GRAY;
cairo_font_options_set_antialias (options, antialias_mode);
gdk_screen_set_font_options (settings->screen, options);
cairo_font_options_destroy (options);
}
static void
settings_update_resolution (GtkSettings *settings)
{
gint dpi_int;
double dpi;
g_object_get (settings,
"gtk-xft-dpi", &dpi_int,
NULL);
if (dpi_int > 0)
dpi = dpi_int / 1024.;
else
dpi = -1.;
gdk_screen_set_resolution (settings->screen, dpi);
}
#endif
static void
settings_update_color_scheme (GtkSettings *settings)
{
gchar *dummy;
g_object_get (settings, "gtk-color-scheme", &dummy, NULL);
/* nothing to do here, the color hash is updated as a
* side effect of getting the color scheme
*/
g_free (dummy);
}
typedef struct {
GHashTable *color_hash;
gchar *tables[GTK_SETTINGS_SOURCE_APPLICATION + 1];
} ColorSchemeData;
static gboolean
update_color_hash (ColorSchemeData *data,
const gchar *str,
GtkSettingsSource source)
{
gchar *copy, *s, *p, *name;
GdkColor color;
gboolean changed = FALSE;
if (data->tables[source] == NULL && str == NULL)
return FALSE;
if (data->tables[source] != NULL && str != NULL &&
strcmp (data->tables[source], str) == 0)
return FALSE;
g_free (data->tables[source]);
data->tables[source] = g_strdup (str);
copy = g_strdup (str);
s = copy;
while (s && *s)
{
name = s;
p = strchr (s, ':');
if (p)
{
*p = '\0';
p++;
}
else
break;
while (*p == ' ')
p++;
s = p;
while (*s)
{
if (*s == '\n')
{
*s = '\0';
s++;
break;
}
s++;
}
if (gdk_color_parse (p, &color))
{
GdkColor *old;
old = g_hash_table_lookup (data->color_hash, name);
if (!old ||
(old->pixel <= source && !gdk_color_equal (old, &color)))
{
GdkColor *new;
new = gdk_color_copy (&color);
new->pixel = source;
g_hash_table_insert (data->color_hash, g_strdup (name), new);
changed = TRUE;
}
}
}
g_free (copy);
return changed;
}
static void
color_scheme_data_free (ColorSchemeData *data)
{
gint i;
g_hash_table_unref (data->color_hash);
for (i = 0; i <= GTK_SETTINGS_SOURCE_APPLICATION; i++)
g_free (data->tables[i]);
g_free (data);
}
static void
merge_color_scheme (GtkSettings *settings,
GValue *value,
GtkSettingsSource source)
{
ColorSchemeData *data;
const gchar *colors;
colors = g_value_get_string (value);
data = (ColorSchemeData *) g_object_get_data (G_OBJECT (settings),
"gtk-color-scheme");
if (!data)
{
data = g_new0 (ColorSchemeData, 1);
data->color_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
(GDestroyNotify) gdk_color_free);
g_object_set_data_full (G_OBJECT (settings), "gtk-color-scheme",
data, (GDestroyNotify) color_scheme_data_free);
}
if (update_color_hash (data, colors, source))
g_object_notify (G_OBJECT (settings), "color-hash");
}
static GHashTable *
get_color_hash (GtkSettings *settings)
{
ColorSchemeData *data;
if (!g_object_get_data (G_OBJECT (settings), "gtk-color-scheme"))
settings_update_color_scheme (settings);
data = (ColorSchemeData *)g_object_get_data (G_OBJECT (settings),
"gtk-color-scheme");
if (!data)
return NULL;
return data->color_hash;
}
static void
append_color_scheme (gpointer key,
gpointer value,
gpointer data)
{
gchar *name = (gchar *)key;
GdkColor *color = (GdkColor *)value;
GString *string = (GString *)data;
g_string_append_printf (string, "%s: #%04x%04x%04x\n",
name, color->red, color->green, color->blue);
}
static gchar *
get_color_scheme (GtkSettings *settings)
{
ColorSchemeData *data;
GString *string;
data = (ColorSchemeData *) g_object_get_data (G_OBJECT (settings),
"gtk-color-scheme");
string = g_string_new ("");
g_hash_table_foreach (data->color_hash, append_color_scheme, string);
return g_string_free (string, FALSE);
}
#define __GTK_SETTINGS_C__
#include "gtkaliasdef.c"
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