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gtk2/gtk/gtkrc.c
Matthias Clasen 55ca24d1d4 Drop GtkThemeEngine 
It is not used anymore.
2010-12-23 22:16:50 -05:00

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include <locale.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/stat.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#include <fcntl.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <glib.h>
#include <glib/gstdio.h>
#include "gdk/gdk.h"
#include "gtkversion.h"
#include "gtkrc.h"
#include "gtkbindings.h"
#include "gtkintl.h"
#include "gtkiconfactory.h"
#include "gtkmain.h"
#include "gtkmodules.h"
#include "gtkprivate.h"
#include "gtksettingsprivate.h"
#include "gtkwindow.h"
#ifdef G_OS_WIN32
#include <io.h>
#endif
enum
{
PATH_ELT_PSPEC,
PATH_ELT_UNRESOLVED,
PATH_ELT_TYPE
};
typedef struct
{
gint type;
union
{
GType class_type;
gchar *class_name;
GPatternSpec *pspec;
} elt;
} PathElt;
#define GTK_RC_STYLE_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_RC_STYLE, GtkRcStylePrivate))
typedef struct _GtkRcStylePrivate GtkRcStylePrivate;
struct _GtkRcStylePrivate
{
GSList *color_hashes;
};
static void gtk_rc_style_finalize (GObject *object);
static void gtk_rc_style_real_merge (GtkRcStyle *dest,
GtkRcStyle *src);
static GtkRcStyle* gtk_rc_style_real_create_rc_style (GtkRcStyle *rc_style);
static GtkStyle* gtk_rc_style_real_create_style (GtkRcStyle *rc_style);
static gint gtk_rc_properties_cmp (gconstpointer bsearch_node1,
gconstpointer bsearch_node2);
static void insert_rc_property (GtkRcStyle *style,
GtkRcProperty *property,
gboolean replace);
static const GScannerConfig gtk_rc_scanner_config =
{
(
" \t\r\n"
) /* cset_skip_characters */,
(
"_"
G_CSET_a_2_z
G_CSET_A_2_Z
) /* cset_identifier_first */,
(
G_CSET_DIGITS
"-_"
G_CSET_a_2_z
G_CSET_A_2_Z
) /* cset_identifier_nth */,
( "#\n" ) /* cpair_comment_single */,
TRUE /* case_sensitive */,
TRUE /* skip_comment_multi */,
TRUE /* skip_comment_single */,
TRUE /* scan_comment_multi */,
TRUE /* scan_identifier */,
FALSE /* scan_identifier_1char */,
FALSE /* scan_identifier_NULL */,
TRUE /* scan_symbols */,
TRUE /* scan_binary */,
TRUE /* scan_octal */,
TRUE /* scan_float */,
TRUE /* scan_hex */,
TRUE /* scan_hex_dollar */,
TRUE /* scan_string_sq */,
TRUE /* scan_string_dq */,
TRUE /* numbers_2_int */,
FALSE /* int_2_float */,
FALSE /* identifier_2_string */,
TRUE /* char_2_token */,
TRUE /* symbol_2_token */,
FALSE /* scope_0_fallback */,
};
static const gchar symbol_names[] =
"include\0"
"NORMAL\0"
"ACTIVE\0"
"PRELIGHT\0"
"SELECTED\0"
"INSENSITIVE\0"
"fg\0"
"bg\0"
"text\0"
"base\0"
"xthickness\0"
"ythickness\0"
"font\0"
"fontset\0"
"font_name\0"
"bg_pixmap\0"
"pixmap_path\0"
"style\0"
"binding\0"
"bind\0"
"widget\0"
"widget_class\0"
"class\0"
"lowest\0"
"gtk\0"
"application\0"
"theme\0"
"rc\0"
"highest\0"
"engine\0"
"module_path\0"
"stock\0"
"im_module_file\0"
"LTR\0"
"RTL\0"
"color\0"
"unbind\0";
static const struct
{
guint name_offset;
guint token;
} symbols[] = {
{ 0, GTK_RC_TOKEN_INCLUDE },
{ 8, GTK_RC_TOKEN_NORMAL },
{ 15, GTK_RC_TOKEN_ACTIVE },
{ 22, GTK_RC_TOKEN_PRELIGHT },
{ 31, GTK_RC_TOKEN_SELECTED },
{ 40, GTK_RC_TOKEN_INSENSITIVE },
{ 52, GTK_RC_TOKEN_FG },
{ 55, GTK_RC_TOKEN_BG },
{ 58, GTK_RC_TOKEN_TEXT },
{ 63, GTK_RC_TOKEN_BASE },
{ 68, GTK_RC_TOKEN_XTHICKNESS },
{ 79, GTK_RC_TOKEN_YTHICKNESS },
{ 90, GTK_RC_TOKEN_FONT },
{ 95, GTK_RC_TOKEN_FONTSET },
{ 103, GTK_RC_TOKEN_FONT_NAME },
{ 113, GTK_RC_TOKEN_BG_PIXMAP },
{ 123, GTK_RC_TOKEN_PIXMAP_PATH },
{ 135, GTK_RC_TOKEN_STYLE },
{ 141, GTK_RC_TOKEN_BINDING },
{ 149, GTK_RC_TOKEN_BIND },
{ 154, GTK_RC_TOKEN_WIDGET },
{ 161, GTK_RC_TOKEN_WIDGET_CLASS },
{ 174, GTK_RC_TOKEN_CLASS },
{ 180, GTK_RC_TOKEN_LOWEST },
{ 187, GTK_RC_TOKEN_GTK },
{ 191, GTK_RC_TOKEN_APPLICATION },
{ 203, GTK_RC_TOKEN_THEME },
{ 209, GTK_RC_TOKEN_RC },
{ 212, GTK_RC_TOKEN_HIGHEST },
{ 220, GTK_RC_TOKEN_ENGINE },
{ 227, GTK_RC_TOKEN_MODULE_PATH },
{ 239, GTK_RC_TOKEN_STOCK },
{ 245, GTK_RC_TOKEN_IM_MODULE_FILE },
{ 260, GTK_RC_TOKEN_LTR },
{ 264, GTK_RC_TOKEN_RTL },
{ 268, GTK_RC_TOKEN_COLOR },
{ 274, GTK_RC_TOKEN_UNBIND }
};
static GHashTable *realized_style_ht = NULL;
static gchar *im_module_file = NULL;
static gchar **gtk_rc_default_files = NULL;
/* RC file handling */
static gchar *
gtk_rc_make_default_dir (const gchar *type)
{
const gchar *var;
gchar *path;
var = g_getenv ("GTK_EXE_PREFIX");
if (var)
path = g_build_filename (var, "lib", "gtk-3.0", GTK_BINARY_VERSION, type, NULL);
else
path = g_build_filename (GTK_LIBDIR, "gtk-3.0", GTK_BINARY_VERSION, type, NULL);
return path;
}
/**
* gtk_rc_get_im_module_path:
* @returns: a newly-allocated string containing the path in which to
* look for IM modules.
*
* Obtains the path in which to look for IM modules. See the documentation
* of the <link linkend="im-module-path"><envar>GTK_PATH</envar></link>
* environment variable for more details about looking up modules. This
* function is useful solely for utilities supplied with GTK+ and should
* not be used by applications under normal circumstances.
*/
gchar *
gtk_rc_get_im_module_path (void)
{
gchar **paths = _gtk_get_module_path ("immodules");
gchar *result = g_strjoinv (G_SEARCHPATH_SEPARATOR_S, paths);
g_strfreev (paths);
return result;
}
/**
* gtk_rc_get_im_module_file:
* @returns: a newly-allocated string containing the name of the file
* listing the IM modules available for loading
*
* Obtains the path to the IM modules file. See the documentation
* of the <link linkend="im-module-file"><envar>GTK_IM_MODULE_FILE</envar></link>
* environment variable for more details.
*/
gchar *
gtk_rc_get_im_module_file (void)
{
const gchar *var = g_getenv ("GTK_IM_MODULE_FILE");
gchar *result = NULL;
if (var)
result = g_strdup (var);
if (!result)
{
if (im_module_file)
result = g_strdup (im_module_file);
else
result = gtk_rc_make_default_dir ("immodules.cache");
}
return result;
}
gchar *
gtk_rc_get_theme_dir (void)
{
const gchar *var;
gchar *path;
var = g_getenv ("GTK_DATA_PREFIX");
if (var)
path = g_build_filename (var, "share", "themes", NULL);
else
path = g_build_filename (GTK_DATA_PREFIX, "share", "themes", NULL);
return path;
}
/**
* gtk_rc_get_module_dir:
*
* Returns a directory in which GTK+ looks for theme engines.
* For full information about the search for theme engines,
* see the docs for <envar>GTK_PATH</envar> in
* <xref linkend="gtk-running"/>.
*
* return value: the directory. (Must be freed with g_free())
**/
gchar *
gtk_rc_get_module_dir (void)
{
return gtk_rc_make_default_dir ("engines");
}
/**
* gtk_rc_add_default_file:
* @filename: the pathname to the file. If @filename is not absolute, it
* is searched in the current directory.
*
* Adds a file to the list of files to be parsed at the
* end of gtk_init().
*
* Deprecated:3.0: Use #GtkStyleContext with a custom #GtkStyleProvider instead
**/
void
gtk_rc_add_default_file (const gchar *filename)
{
}
/**
* gtk_rc_set_default_files:
* @filenames: A %NULL-terminated list of filenames.
*
* Sets the list of files that GTK+ will read at the
* end of gtk_init().
*
* Deprecated:3.0: Use #GtkStyleContext with a custom #GtkStyleProvider instead
**/
void
gtk_rc_set_default_files (gchar **filenames)
{
}
/**
* gtk_rc_get_default_files:
*
* Retrieves the current list of RC files that will be parsed
* at the end of gtk_init().
*
* Return value: (transfer none): A %NULL-terminated array of filenames.
* This memory is owned by GTK+ and must not be freed by the application.
* If you want to store this information, you should make a copy.
*
* Deprecated:3.0: Use #GtkStyleContext instead
**/
gchar **
gtk_rc_get_default_files (void)
{
return gtk_rc_default_files;
}
void
gtk_rc_parse_string (const gchar *rc_string)
{
g_return_if_fail (rc_string != NULL);
}
void
gtk_rc_parse (const gchar *filename)
{
g_return_if_fail (filename != NULL);
}
/* Handling of RC styles */
G_DEFINE_TYPE (GtkRcStyle, gtk_rc_style, G_TYPE_OBJECT)
static void
gtk_rc_style_init (GtkRcStyle *style)
{
GtkRcStylePrivate *priv = GTK_RC_STYLE_GET_PRIVATE (style);
guint i;
style->name = NULL;
style->font_desc = NULL;
for (i = 0; i < 5; i++)
{
static const GdkColor init_color = { 0, 0, 0, 0, };
style->bg_pixmap_name[i] = NULL;
style->color_flags[i] = 0;
style->fg[i] = init_color;
style->bg[i] = init_color;
style->text[i] = init_color;
style->base[i] = init_color;
}
style->xthickness = -1;
style->ythickness = -1;
style->rc_properties = NULL;
style->rc_style_lists = NULL;
style->icon_factories = NULL;
priv->color_hashes = NULL;
}
static void
gtk_rc_style_class_init (GtkRcStyleClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gtk_rc_style_finalize;
klass->parse = NULL;
klass->create_rc_style = gtk_rc_style_real_create_rc_style;
klass->merge = gtk_rc_style_real_merge;
klass->create_style = gtk_rc_style_real_create_style;
g_type_class_add_private (object_class, sizeof (GtkRcStylePrivate));
}
static void
gtk_rc_style_finalize (GObject *object)
{
GSList *tmp_list1, *tmp_list2;
GtkRcStyle *rc_style;
GtkRcStylePrivate *rc_priv;
gint i;
rc_style = GTK_RC_STYLE (object);
rc_priv = GTK_RC_STYLE_GET_PRIVATE (rc_style);
g_free (rc_style->name);
if (rc_style->font_desc)
pango_font_description_free (rc_style->font_desc);
for (i = 0; i < 5; i++)
g_free (rc_style->bg_pixmap_name[i]);
/* Now remove all references to this rc_style from
* realized_style_ht
*/
tmp_list1 = rc_style->rc_style_lists;
while (tmp_list1)
{
GSList *rc_styles = tmp_list1->data;
GtkStyle *style = g_hash_table_lookup (realized_style_ht, rc_styles);
g_object_unref (style);
/* Remove the list of styles from the other rc_styles
* in the list
*/
tmp_list2 = rc_styles;
while (tmp_list2)
{
GtkRcStyle *other_style = tmp_list2->data;
if (other_style != rc_style)
other_style->rc_style_lists = g_slist_remove_all (other_style->rc_style_lists,
rc_styles);
tmp_list2 = tmp_list2->next;
}
/* And from the hash table itself
*/
g_hash_table_remove (realized_style_ht, rc_styles);
g_slist_free (rc_styles);
tmp_list1 = tmp_list1->next;
}
g_slist_free (rc_style->rc_style_lists);
if (rc_style->rc_properties)
{
guint i;
for (i = 0; i < rc_style->rc_properties->len; i++)
{
GtkRcProperty *node = &g_array_index (rc_style->rc_properties, GtkRcProperty, i);
g_free (node->origin);
g_value_unset (&node->value);
}
g_array_free (rc_style->rc_properties, TRUE);
rc_style->rc_properties = NULL;
}
g_slist_foreach (rc_style->icon_factories, (GFunc) g_object_unref, NULL);
g_slist_free (rc_style->icon_factories);
g_slist_foreach (rc_priv->color_hashes, (GFunc) g_hash_table_unref, NULL);
g_slist_free (rc_priv->color_hashes);
G_OBJECT_CLASS (gtk_rc_style_parent_class)->finalize (object);
}
GtkRcStyle *
gtk_rc_style_new (void)
{
GtkRcStyle *style;
style = g_object_new (GTK_TYPE_RC_STYLE, NULL);
return style;
}
/**
* gtk_rc_style_copy:
* @orig: the style to copy
*
* Makes a copy of the specified #GtkRcStyle. This function
* will correctly copy an RC style that is a member of a class
* derived from #GtkRcStyle.
*
* Return value: (transfer full): the resulting #GtkRcStyle
**/
GtkRcStyle *
gtk_rc_style_copy (GtkRcStyle *orig)
{
GtkRcStyle *style;
g_return_val_if_fail (GTK_IS_RC_STYLE (orig), NULL);
style = GTK_RC_STYLE_GET_CLASS (orig)->create_rc_style (orig);
GTK_RC_STYLE_GET_CLASS (style)->merge (style, orig);
return style;
}
static GtkRcStyle *
gtk_rc_style_real_create_rc_style (GtkRcStyle *style)
{
return g_object_new (G_OBJECT_TYPE (style), NULL);
}
static gint
gtk_rc_properties_cmp (gconstpointer bsearch_node1,
gconstpointer bsearch_node2)
{
const GtkRcProperty *prop1 = bsearch_node1;
const GtkRcProperty *prop2 = bsearch_node2;
if (prop1->type_name == prop2->type_name)
return prop1->property_name < prop2->property_name ? -1 : prop1->property_name == prop2->property_name ? 0 : 1;
else
return prop1->type_name < prop2->type_name ? -1 : 1;
}
static void
insert_rc_property (GtkRcStyle *style,
GtkRcProperty *property,
gboolean replace)
{
guint i;
GtkRcProperty *new_property = NULL;
GtkRcProperty key = { 0, 0, NULL, { 0, }, };
key.type_name = property->type_name;
key.property_name = property->property_name;
if (!style->rc_properties)
style->rc_properties = g_array_new (FALSE, FALSE, sizeof (GtkRcProperty));
i = 0;
while (i < style->rc_properties->len)
{
gint cmp = gtk_rc_properties_cmp (&key, &g_array_index (style->rc_properties, GtkRcProperty, i));
if (cmp == 0)
{
if (replace)
{
new_property = &g_array_index (style->rc_properties, GtkRcProperty, i);
g_free (new_property->origin);
g_value_unset (&new_property->value);
*new_property = key;
break;
}
else
return;
}
else if (cmp < 0)
break;
i++;
}
if (!new_property)
{
g_array_insert_val (style->rc_properties, i, key);
new_property = &g_array_index (style->rc_properties, GtkRcProperty, i);
}
new_property->origin = g_strdup (property->origin);
g_value_init (&new_property->value, G_VALUE_TYPE (&property->value));
g_value_copy (&property->value, &new_property->value);
}
static void
gtk_rc_style_real_merge (GtkRcStyle *dest,
GtkRcStyle *src)
{
gint i;
for (i = 0; i < 5; i++)
{
if (!dest->bg_pixmap_name[i] && src->bg_pixmap_name[i])
dest->bg_pixmap_name[i] = g_strdup (src->bg_pixmap_name[i]);
if (!(dest->color_flags[i] & GTK_RC_FG) &&
src->color_flags[i] & GTK_RC_FG)
{
dest->fg[i] = src->fg[i];
dest->color_flags[i] |= GTK_RC_FG;
}
if (!(dest->color_flags[i] & GTK_RC_BG) &&
src->color_flags[i] & GTK_RC_BG)
{
dest->bg[i] = src->bg[i];
dest->color_flags[i] |= GTK_RC_BG;
}
if (!(dest->color_flags[i] & GTK_RC_TEXT) &&
src->color_flags[i] & GTK_RC_TEXT)
{
dest->text[i] = src->text[i];
dest->color_flags[i] |= GTK_RC_TEXT;
}
if (!(dest->color_flags[i] & GTK_RC_BASE) &&
src->color_flags[i] & GTK_RC_BASE)
{
dest->base[i] = src->base[i];
dest->color_flags[i] |= GTK_RC_BASE;
}
}
if (dest->xthickness < 0 && src->xthickness >= 0)
dest->xthickness = src->xthickness;
if (dest->ythickness < 0 && src->ythickness >= 0)
dest->ythickness = src->ythickness;
if (src->font_desc)
{
if (!dest->font_desc)
dest->font_desc = pango_font_description_copy (src->font_desc);
else
pango_font_description_merge (dest->font_desc, src->font_desc, FALSE);
}
if (src->rc_properties)
{
guint i;
for (i = 0; i < src->rc_properties->len; i++)
insert_rc_property (dest,
&g_array_index (src->rc_properties, GtkRcProperty, i),
FALSE);
}
}
static GtkStyle *
gtk_rc_style_real_create_style (GtkRcStyle *rc_style)
{
return gtk_style_new ();
}
/**
* gtk_rc_reset_styles:
* @settings: a #GtkSettings
*
* This function recomputes the styles for all widgets that use a
* particular #GtkSettings object. (There is one #GtkSettings object
* per #GdkScreen, see gtk_settings_get_for_screen()); It is useful
* when some global parameter has changed that affects the appearance
* of all widgets, because when a widget gets a new style, it will
* both redraw and recompute any cached information about its
* appearance. As an example, it is used when the default font size
* set by the operating system changes. Note that this function
* doesn't affect widgets that have a style set explicitely on them
* with gtk_widget_set_style().
*
* Since: 2.4
**/
void
gtk_rc_reset_styles (GtkSettings *settings)
{
gtk_style_context_reset_widgets (_gtk_settings_get_screen (settings));
}
/**
* gtk_rc_reparse_all_for_settings:
* @settings: a #GtkSettings
* @force_load: load whether or not anything changed
*
* If the modification time on any previously read file
* for the given #GtkSettings has changed, discard all style information
* and then reread all previously read RC files.
*
* Return value: %TRUE if the files were reread.
**/
gboolean
gtk_rc_reparse_all_for_settings (GtkSettings *settings,
gboolean force_load)
{
return FALSE;
}
/**
* gtk_rc_reparse_all:
*
* If the modification time on any previously read file for the
* default #GtkSettings has changed, discard all style information
* and then reread all previously read RC files.
*
* Return value: %TRUE if the files were reread.
**/
gboolean
gtk_rc_reparse_all (void)
{
return FALSE;
}
/**
* gtk_rc_get_style:
* @widget: a #GtkWidget
*
* Finds all matching RC styles for a given widget,
* composites them together, and then creates a
* #GtkStyle representing the composite appearance.
* (GTK+ actually keeps a cache of previously
* created styles, so a new style may not be
* created.)
*
* Returns: the resulting style. No refcount is added
* to the returned style, so if you want to save this
* style around, you should add a reference yourself.
*
* Deprecated:3.0: Use #GtkStyleContext instead
**/
GtkStyle *
gtk_rc_get_style (GtkWidget *widget)
{
g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
gtk_widget_ensure_style (widget);
return gtk_widget_get_style (widget);
}
/**
* gtk_rc_get_style_by_paths:
* @settings: a #GtkSettings object
* @widget_path: (allow-none): the widget path to use when looking up the
* style, or %NULL if no matching against the widget path should be done
* @class_path: (allow-none): the class path to use when looking up the style,
* or %NULL if no matching against the class path should be done.
* @type: a type that will be used along with parent types of this type
* when matching against class styles, or #G_TYPE_NONE
*
* Creates up a #GtkStyle from styles defined in a RC file by providing
* the raw components used in matching. This function may be useful
* when creating pseudo-widgets that should be themed like widgets but
* don't actually have corresponding GTK+ widgets. An example of this
* would be items inside a GNOME canvas widget.
*
* The action of gtk_rc_get_style() is similar to:
* |[
* gtk_widget_path (widget, NULL, &path, NULL);
* gtk_widget_class_path (widget, NULL, &class_path, NULL);
* gtk_rc_get_style_by_paths (gtk_widget_get_settings (widget),
* path, class_path,
* G_OBJECT_TYPE (widget));
* ]|
*
* Return value: (transfer none): A style created by matching with the
* supplied paths, or %NULL if nothing matching was specified and the
* default style should be used. The returned value is owned by GTK+
* as part of an internal cache, so you must call g_object_ref() on
* the returned value if you want to keep a reference to it.
*
* Deprecated:3.0: Use #GtkStyleContext instead
**/
GtkStyle *
gtk_rc_get_style_by_paths (GtkSettings *settings,
const char *widget_path,
const char *class_path,
GType type)
{
GtkWidgetPath *path;
GtkStyle *style;
path = gtk_widget_path_new ();
/* For compatibility, we return a GtkStyle based on a GtkStyleContext
* with a GtkWidgetPath appropriate for the supplied information.
*
* GtkWidgetPath is composed of a list of GTypes with optional names;
* In GTK+-2.0, widget_path consisted of the widget names, or
* the class names for unnamed widgets, while class_path had the
* class names always. So, use class_path to determine the GTypes
* and extract widget names from widget_path as applicable.
*/
if (class_path == NULL)
{
gtk_widget_path_append_type (path, type == G_TYPE_NONE ? GTK_TYPE_WIDGET : type);
}
else
{
const gchar *widget_p, *widget_next;
const gchar *class_p, *class_next;
widget_next = widget_path;
class_next = class_path;
while (*class_next)
{
GType component_type;
gchar *component_class;
gchar *component_name;
gint pos;
class_p = class_next;
if (*class_p == '.')
class_p++;
widget_p = widget_next; /* Might be NULL */
if (widget_p && *widget_p == '.')
widget_p++;
class_next = strchr (class_p, '.');
if (class_next == NULL)
class_next = class_p + strlen (class_p);
if (widget_p)
{
widget_next = strchr (widget_p, '.');
if (widget_next == NULL)
widget_next = widget_p + strlen (widget_p);
}
component_class = g_strndup (class_p, class_next - class_p);
if (widget_p && *widget_p)
component_name = g_strndup (widget_p, widget_next - widget_p);
else
component_name = NULL;
component_type = g_type_from_name (component_class);
if (component_type == G_TYPE_INVALID)
component_type = GTK_TYPE_WIDGET;
pos = gtk_widget_path_append_type (path, component_type);
if (component_name != NULL && strcmp (component_name, component_name) != 0)
gtk_widget_path_iter_set_name (path, pos, component_name);
g_free (component_class);
g_free (component_name);
}
}
style = _gtk_style_new_for_path (_gtk_settings_get_screen (settings),
path);
gtk_widget_path_free (path);
return style;
}
/**
* gtk_rc_scanner_new:
*
* Deprecated:3.0: Use #GtkCssProvider instead
*/
GScanner*
gtk_rc_scanner_new (void)
{
return g_scanner_new (&gtk_rc_scanner_config);
}
/*********************
* Parsing functions *
*********************/
static gboolean
lookup_color (GtkRcStyle *style,
const char *color_name,
GdkColor *color)
{
GtkRcStylePrivate *priv = GTK_RC_STYLE_GET_PRIVATE (style);
GSList *iter;
for (iter = priv->color_hashes; iter != NULL; iter = iter->next)
{
GHashTable *hash = iter->data;
GdkColor *match = g_hash_table_lookup (hash, color_name);
if (match)
{
color->red = match->red;
color->green = match->green;
color->blue = match->blue;
return TRUE;
}
}
return FALSE;
}
/**
* gtk_rc_find_pixmap_in_path:
* @settings: a #GtkSettings
* @scanner: Scanner used to get line number information for the
* warning message, or %NULL
* @pixmap_file: name of the pixmap file to locate.
*
* Looks up a file in pixmap path for the specified #GtkSettings.
* If the file is not found, it outputs a warning message using
* g_warning() and returns %NULL.
*
* Return value: the filename.
**/
gchar*
gtk_rc_find_pixmap_in_path (GtkSettings *settings,
GScanner *scanner,
const gchar *pixmap_file)
{
g_warning (_("Unable to locate image file in pixmap_path: \"%s\""),
pixmap_file);
return NULL;
}
/**
* gtk_rc_find_module_in_path:
* @module_file: name of a theme engine
*
* Searches for a theme engine in the GTK+ search path. This function
* is not useful for applications and should not be used.
*
* Return value: The filename, if found (must be freed with g_free()),
* otherwise %NULL.
**/
gchar*
gtk_rc_find_module_in_path (const gchar *module_file)
{
return _gtk_find_module (module_file, "engines");
}
/**
* gtk_rc_parse_state:
* @scanner:
* @state:
*
* Deprecated:3.0: Use #GtkCssProvider instead
*/
guint
gtk_rc_parse_state (GScanner *scanner,
GtkStateType *state)
{
guint old_scope;
guint token;
g_return_val_if_fail (scanner != NULL, G_TOKEN_ERROR);
g_return_val_if_fail (state != NULL, G_TOKEN_ERROR);
/* we don't know where we got called from, so we reset the scope here.
* if we bail out due to errors, we *don't* reset the scope, so the
* error messaging code can make sense of our tokens.
*/
old_scope = g_scanner_set_scope (scanner, 0);
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_LEFT_BRACE)
return G_TOKEN_LEFT_BRACE;
token = g_scanner_get_next_token (scanner);
switch (token)
{
case GTK_RC_TOKEN_ACTIVE:
*state = GTK_STATE_ACTIVE;
break;
case GTK_RC_TOKEN_INSENSITIVE:
*state = GTK_STATE_INSENSITIVE;
break;
case GTK_RC_TOKEN_NORMAL:
*state = GTK_STATE_NORMAL;
break;
case GTK_RC_TOKEN_PRELIGHT:
*state = GTK_STATE_PRELIGHT;
break;
case GTK_RC_TOKEN_SELECTED:
*state = GTK_STATE_SELECTED;
break;
default:
return /* G_TOKEN_SYMBOL */ GTK_RC_TOKEN_NORMAL;
}
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_RIGHT_BRACE)
return G_TOKEN_RIGHT_BRACE;
g_scanner_set_scope (scanner, old_scope);
return G_TOKEN_NONE;
}
/**
* gtk_rc_parse_priority:
* @scanner:
* @priority:
*
* Deprecated:3.0: Use #GtkCssProvider instead
*/
guint
gtk_rc_parse_priority (GScanner *scanner,
GtkPathPriorityType *priority)
{
guint old_scope;
guint token;
g_return_val_if_fail (scanner != NULL, G_TOKEN_ERROR);
g_return_val_if_fail (priority != NULL, G_TOKEN_ERROR);
/* we don't know where we got called from, so we reset the scope here.
* if we bail out due to errors, we *don't* reset the scope, so the
* error messaging code can make sense of our tokens.
*/
old_scope = g_scanner_set_scope (scanner, 0);
token = g_scanner_get_next_token (scanner);
if (token != ':')
return ':';
token = g_scanner_get_next_token (scanner);
switch (token)
{
case GTK_RC_TOKEN_LOWEST:
*priority = GTK_PATH_PRIO_LOWEST;
break;
case GTK_RC_TOKEN_GTK:
*priority = GTK_PATH_PRIO_GTK;
break;
case GTK_RC_TOKEN_APPLICATION:
*priority = GTK_PATH_PRIO_APPLICATION;
break;
case GTK_RC_TOKEN_THEME:
*priority = GTK_PATH_PRIO_THEME;
break;
case GTK_RC_TOKEN_RC:
*priority = GTK_PATH_PRIO_RC;
break;
case GTK_RC_TOKEN_HIGHEST:
*priority = GTK_PATH_PRIO_HIGHEST;
break;
default:
return /* G_TOKEN_SYMBOL */ GTK_RC_TOKEN_APPLICATION;
}
g_scanner_set_scope (scanner, old_scope);
return G_TOKEN_NONE;
}
/**
* gtk_rc_parse_color:
* @scanner: a #GScanner
* @color: a pointer to a #GdkColor structure in which to store the result
*
* Parses a color in the <link linkend="color=format">format</link> expected
* in a RC file.
*
* Note that theme engines should use gtk_rc_parse_color_full() in
* order to support symbolic colors.
*
* Returns: %G_TOKEN_NONE if parsing succeeded, otherwise the token
* that was expected but not found
*
* Deprecated:3.0: Use #GtkCssProvider instead
*/
guint
gtk_rc_parse_color (GScanner *scanner,
GdkColor *color)
{
return gtk_rc_parse_color_full (scanner, NULL, color);
}
/**
* gtk_rc_parse_color_full:
* @scanner: a #GScanner
* @style: (allow-none): a #GtkRcStyle, or %NULL
* @color: a pointer to a #GdkColor structure in which to store the result
*
* Parses a color in the <link linkend="color=format">format</link> expected
* in a RC file. If @style is not %NULL, it will be consulted to resolve
* references to symbolic colors.
*
* Returns: %G_TOKEN_NONE if parsing succeeded, otherwise the token
* that was expected but not found
*
* Since: 2.12
*
* Deprecated:3.0: Use #GtkCssProvider instead
*/
guint
gtk_rc_parse_color_full (GScanner *scanner,
GtkRcStyle *style,
GdkColor *color)
{
guint token;
g_return_val_if_fail (scanner != NULL, G_TOKEN_ERROR);
/* we don't need to set our own scope here, because
* we don't need own symbols
*/
token = g_scanner_get_next_token (scanner);
switch (token)
{
gint token_int;
GdkColor c1, c2;
gboolean negate;
gdouble l;
case G_TOKEN_LEFT_CURLY:
token = g_scanner_get_next_token (scanner);
if (token == G_TOKEN_INT)
token_int = scanner->value.v_int;
else if (token == G_TOKEN_FLOAT)
token_int = scanner->value.v_float * 65535.0;
else
return G_TOKEN_FLOAT;
color->red = CLAMP (token_int, 0, 65535);
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_COMMA)
return G_TOKEN_COMMA;
token = g_scanner_get_next_token (scanner);
if (token == G_TOKEN_INT)
token_int = scanner->value.v_int;
else if (token == G_TOKEN_FLOAT)
token_int = scanner->value.v_float * 65535.0;
else
return G_TOKEN_FLOAT;
color->green = CLAMP (token_int, 0, 65535);
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_COMMA)
return G_TOKEN_COMMA;
token = g_scanner_get_next_token (scanner);
if (token == G_TOKEN_INT)
token_int = scanner->value.v_int;
else if (token == G_TOKEN_FLOAT)
token_int = scanner->value.v_float * 65535.0;
else
return G_TOKEN_FLOAT;
color->blue = CLAMP (token_int, 0, 65535);
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_RIGHT_CURLY)
return G_TOKEN_RIGHT_CURLY;
return G_TOKEN_NONE;
case G_TOKEN_STRING:
if (!gdk_color_parse (scanner->value.v_string, color))
{
g_scanner_warn (scanner, "Invalid color constant '%s'",
scanner->value.v_string);
return G_TOKEN_STRING;
}
return G_TOKEN_NONE;
case '@':
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_IDENTIFIER)
return G_TOKEN_IDENTIFIER;
if (!style || !lookup_color (style, scanner->value.v_identifier, color))
{
g_scanner_warn (scanner, "Invalid symbolic color '%s'",
scanner->value.v_identifier);
return G_TOKEN_IDENTIFIER;
}
return G_TOKEN_NONE;
case G_TOKEN_IDENTIFIER:
if (strcmp (scanner->value.v_identifier, "mix") == 0)
{
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_LEFT_PAREN)
return G_TOKEN_LEFT_PAREN;
negate = FALSE;
if (g_scanner_peek_next_token (scanner) == '-')
{
g_scanner_get_next_token (scanner); /* eat sign */
negate = TRUE;
}
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_FLOAT)
return G_TOKEN_FLOAT;
l = negate ? -scanner->value.v_float : scanner->value.v_float;
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_COMMA)
return G_TOKEN_COMMA;
token = gtk_rc_parse_color_full (scanner, style, &c1);
if (token != G_TOKEN_NONE)
return token;
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_COMMA)
return G_TOKEN_COMMA;
token = gtk_rc_parse_color_full (scanner, style, &c2);
if (token != G_TOKEN_NONE)
return token;
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_RIGHT_PAREN)
return G_TOKEN_RIGHT_PAREN;
color->red = l * c1.red + (1.0 - l) * c2.red;
color->green = l * c1.green + (1.0 - l) * c2.green;
color->blue = l * c1.blue + (1.0 - l) * c2.blue;
return G_TOKEN_NONE;
}
else if (strcmp (scanner->value.v_identifier, "shade") == 0)
{
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_LEFT_PAREN)
return G_TOKEN_LEFT_PAREN;
negate = FALSE;
if (g_scanner_peek_next_token (scanner) == '-')
{
g_scanner_get_next_token (scanner); /* eat sign */
negate = TRUE;
}
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_FLOAT)
return G_TOKEN_FLOAT;
l = negate ? -scanner->value.v_float : scanner->value.v_float;
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_COMMA)
return G_TOKEN_COMMA;
token = gtk_rc_parse_color_full (scanner, style, &c1);
if (token != G_TOKEN_NONE)
return token;
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_RIGHT_PAREN)
return G_TOKEN_RIGHT_PAREN;
_gtk_style_shade (&c1, color, l);
return G_TOKEN_NONE;
}
else if (strcmp (scanner->value.v_identifier, "lighter") == 0 ||
strcmp (scanner->value.v_identifier, "darker") == 0)
{
if (scanner->value.v_identifier[0] == 'l')
l = 1.3;
else
l = 0.7;
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_LEFT_PAREN)
return G_TOKEN_LEFT_PAREN;
token = gtk_rc_parse_color_full (scanner, style, &c1);
if (token != G_TOKEN_NONE)
return token;
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_RIGHT_PAREN)
return G_TOKEN_RIGHT_PAREN;
_gtk_style_shade (&c1, color, l);
return G_TOKEN_NONE;
}
else
return G_TOKEN_IDENTIFIER;
default:
return G_TOKEN_STRING;
}
}
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