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gtk2/gtk/gtkrc.h
Michael Natterer de3155a4c2 Added symbolic themable colors. Patch is a merged version of proposals 
2005-11-23  Michael Natterer  <mitch@imendio.com>

	Added symbolic themable colors. Patch is a merged version of
	proposals from Matthias and maemo-gtk. Fixes bug #114355.

	* configure.in: require glib >= 2.9.1 for refcountable hashtables.

	* gtk/gtksettings.c: added property "color-scheme" which is a
	string defining colors like "foreground:black\nbackground:grey".
	Automatically provide a name->GdkColor hash table mapping for the
	color scheme.

	* gtk/gtkrc.[ch]: added list of color hashes that works like the
	list of icon factories. Append the color scheme hash from
	GtkSettings if it exists. Extended gtkrc syntax to allow defining
	and referencing of logical colors. Also allow to modulate colors
	in gtkrc by using arbitrary expressions of mix(), shade(),
	lighter() and darker(). Added internal function
	_gtk_rc_style_get_color_hashes().

	* gtk/gtkstyle.[ch]: keep a private list of color hashes around.
	Get the list from _gtk_rc_style_get_color_hashes(). Export
	internal function _gtk_style_shade() (used by above color
	expressions). Added public API gtk_style_lookup_color() which
	looks up a logical color by name.

	* gtk/gtk.symbols: add gtk_style_lookup_color

	* tests/testgtkrc: use symbolic colors for making
	the scrollbars red.
2005-11-23 10:33:58 +00:00

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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/.
*/
#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);
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_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);
G_END_DECLS
#endif /* __GTK_RC_H__ */
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