gtk2/gtk/gtkrc.h

/* 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/. 
 */

#ifndef __GTK_RC_H__
#define __GTK_RC_H__


#include <gtk/gtkstyle.h>

G_BEGIN_DECLS

/* Forward declarations */
typedef struct _GtkIconFactory  GtkIconFactory;
typedef struct _GtkRcContext    GtkRcContext;

typedef struct _GtkRcStyleClass GtkRcStyleClass;

#define GTK_TYPE_RC_STYLE              (gtk_rc_style_get_type ())
#define GTK_RC_STYLE(object)           (G_TYPE_CHECK_INSTANCE_CAST ((object), GTK_TYPE_RC_STYLE, GtkRcStyle))
#define GTK_RC_STYLE_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_RC_STYLE, GtkRcStyleClass))
#define GTK_IS_RC_STYLE(object)        (G_TYPE_CHECK_INSTANCE_TYPE ((object), GTK_TYPE_RC_STYLE))
#define GTK_IS_RC_STYLE_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_RC_STYLE))
#define GTK_RC_STYLE_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_RC_STYLE, GtkRcStyleClass))

typedef enum
{
  GTK_RC_FG		= 1 << 0,
  GTK_RC_BG		= 1 << 1,
  GTK_RC_TEXT		= 1 << 2,
  GTK_RC_BASE		= 1 << 3
} GtkRcFlags;

struct _GtkRcStyle
{
  GObject parent_instance;

  /*< public >*/
  
  gchar *name;
  gchar *bg_pixmap_name[5];
  PangoFontDescription *font_desc;

  GtkRcFlags color_flags[5];
  GdkColor   fg[5];
  GdkColor   bg[5];
  GdkColor   text[5];
  GdkColor   base[5];

  gint xthickness;
  gint ythickness;

  /*< private >*/
  GArray *rc_properties;
  
  /* list of RC style lists including this RC style */
  GSList *rc_style_lists;

  GSList *icon_factories;

  guint engine_specified : 1;	/* The RC file specified the engine */
};

struct _GtkRcStyleClass
{
  GObjectClass parent_class;

  /* Create an empty RC style of the same type as this RC style.
   * The default implementation, which does
   * g_object_new (G_OBJECT_TYPE (style), NULL);
   * should work in most cases.
   */
  GtkRcStyle * (*create_rc_style) (GtkRcStyle *rc_style);

  /* Fill in engine specific parts of GtkRcStyle by parsing contents
   * of brackets. Returns G_TOKEN_NONE if successful, otherwise returns
   * the token it expected but didn't get.
   */
  guint     (*parse)  (GtkRcStyle   *rc_style,
		       GtkSettings  *settings,
		       GScanner     *scanner);
  
  /* Combine RC style data from src into dest. If overriden, this
   * function should chain to the parent.
   */
  void      (*merge)  (GtkRcStyle *dest,
		       GtkRcStyle *src);

  /* Create an empty style suitable to this RC style
   */
  GtkStyle * (*create_style) (GtkRcStyle *rc_style);

  /* Padding for future expansion */
  void (*_gtk_reserved1) (void);
  void (*_gtk_reserved2) (void);
  void (*_gtk_reserved3) (void);
  void (*_gtk_reserved4) (void);
};

#ifdef G_OS_WIN32
/* Reserve old names for DLL ABI backward compatibility */
#define gtk_rc_add_default_file gtk_rc_add_default_file_utf8
#define gtk_rc_set_default_files gtk_rc_set_default_files_utf8
#define gtk_rc_parse gtk_rc_parse_utf8
#endif

void	  _gtk_rc_init			 (void);
GSList*   _gtk_rc_parse_widget_class_path (const gchar *pattern);
void      _gtk_rc_free_widget_class_path (GSList       *list);
gboolean  _gtk_rc_match_widget_class     (GSList       *list,
                                          gint          length,
                                          gchar        *path,
                                          gchar        *path_reversed);

void      gtk_rc_add_default_file	(const gchar *filename);
void      gtk_rc_set_default_files      (gchar **filenames);
gchar**   gtk_rc_get_default_files      (void);
GtkStyle* gtk_rc_get_style		(GtkWidget   *widget);
GtkStyle* gtk_rc_get_style_by_paths     (GtkSettings *settings,
					 const char  *widget_path,
					 const char  *class_path,
					 GType        type);

gboolean gtk_rc_reparse_all_for_settings (GtkSettings *settings,
					  gboolean     force_load);
void     gtk_rc_reset_styles             (GtkSettings *settings);

gchar*   gtk_rc_find_pixmap_in_path (GtkSettings  *settings,
				     GScanner     *scanner,
				     const gchar  *pixmap_file);

void	  gtk_rc_parse			(const gchar *filename);
void	  gtk_rc_parse_string		(const gchar *rc_string);
gboolean  gtk_rc_reparse_all		(void);

#ifndef GTK_DISABLE_DEPRECATED
void	  gtk_rc_add_widget_name_style	(GtkRcStyle   *rc_style,
					 const gchar  *pattern);
void	  gtk_rc_add_widget_class_style (GtkRcStyle   *rc_style,
					 const gchar  *pattern);
void	  gtk_rc_add_class_style	(GtkRcStyle   *rc_style,
					 const gchar  *pattern);
#endif /* GTK_DISABLE_DEPRECATED */


GType       gtk_rc_style_get_type   (void) G_GNUC_CONST;
GtkRcStyle* gtk_rc_style_new        (void);
GtkRcStyle* gtk_rc_style_copy       (GtkRcStyle *orig);
void        gtk_rc_style_ref        (GtkRcStyle *rc_style);
void        gtk_rc_style_unref      (GtkRcStyle *rc_style);

gchar*		gtk_rc_find_module_in_path	(const gchar 	*module_file);
gchar*		gtk_rc_get_theme_dir		(void);
gchar*		gtk_rc_get_module_dir		(void);
gchar*		gtk_rc_get_im_module_path	(void);
gchar*		gtk_rc_get_im_module_file	(void);

/* private functions/definitions */
typedef enum {
  GTK_RC_TOKEN_INVALID = G_TOKEN_LAST,
  GTK_RC_TOKEN_INCLUDE,
  GTK_RC_TOKEN_NORMAL,
  GTK_RC_TOKEN_ACTIVE,
  GTK_RC_TOKEN_PRELIGHT,
  GTK_RC_TOKEN_SELECTED,
  GTK_RC_TOKEN_INSENSITIVE,
  GTK_RC_TOKEN_FG,
  GTK_RC_TOKEN_BG,
  GTK_RC_TOKEN_TEXT,
  GTK_RC_TOKEN_BASE,
  GTK_RC_TOKEN_XTHICKNESS,
  GTK_RC_TOKEN_YTHICKNESS,
  GTK_RC_TOKEN_FONT,
  GTK_RC_TOKEN_FONTSET,
  GTK_RC_TOKEN_FONT_NAME,
  GTK_RC_TOKEN_BG_PIXMAP,
  GTK_RC_TOKEN_PIXMAP_PATH,
  GTK_RC_TOKEN_STYLE,
  GTK_RC_TOKEN_BINDING,
  GTK_RC_TOKEN_BIND,
  GTK_RC_TOKEN_WIDGET,
  GTK_RC_TOKEN_WIDGET_CLASS,
  GTK_RC_TOKEN_CLASS,
  GTK_RC_TOKEN_LOWEST,
  GTK_RC_TOKEN_GTK,
  GTK_RC_TOKEN_APPLICATION,
  GTK_RC_TOKEN_THEME,
  GTK_RC_TOKEN_RC,
  GTK_RC_TOKEN_HIGHEST,
  GTK_RC_TOKEN_ENGINE,
  GTK_RC_TOKEN_MODULE_PATH,
  GTK_RC_TOKEN_IM_MODULE_PATH,
  GTK_RC_TOKEN_IM_MODULE_FILE,
  GTK_RC_TOKEN_STOCK,
  GTK_RC_TOKEN_LTR,
  GTK_RC_TOKEN_RTL,
  GTK_RC_TOKEN_COLOR,
  GTK_RC_TOKEN_UNBIND,
  GTK_RC_TOKEN_LAST
} GtkRcTokenType;

GScanner* gtk_rc_scanner_new	(void);
guint	  gtk_rc_parse_color	(GScanner	     *scanner,
				 GdkColor	     *color);
guint	  gtk_rc_parse_state	(GScanner	     *scanner,
				 GtkStateType	     *state);
guint	  gtk_rc_parse_priority	(GScanner	     *scanner,
				 GtkPathPriorityType *priority);

/* rc properties
 * (structure forward declared in gtkstyle.h)
 */
struct _GtkRcProperty
{
  /* quark-ified property identifier like "GtkScrollbar::spacing" */
  GQuark type_name;
  GQuark property_name;

  /* fields similar to GtkSettingsValue */
  gchar *origin;
  GValue value;
};
const GtkRcProperty* _gtk_rc_style_lookup_rc_property (GtkRcStyle *rc_style,
						       GQuark      type_name,
						       GQuark      property_name);

GSList     * _gtk_rc_style_get_color_hashes        (GtkRcStyle *rc_style);

const gchar* _gtk_rc_context_get_default_font_name (GtkSettings *settings);
void         _gtk_rc_context_destroy               (GtkSettings *settings);

G_END_DECLS

#endif /* __GTK_RC_H__ */