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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/.
*/

#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gtk/gtk.h> can be included directly."
#endif

#ifndef __GTK_STYLE_H__
#define __GTK_STYLE_H__


#include <gdk/gdk.h>
#include <gtk/gtkenums.h>
#include <gtk/gtkwidgetpath.h>


G_BEGIN_DECLS

#define GTK_TYPE_STYLE (gtk_style_get_type ())
#define GTK_STYLE(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GTK_TYPE_STYLE, GtkStyle))
#define GTK_STYLE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_STYLE, GtkStyleClass))
#define GTK_IS_STYLE(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GTK_TYPE_STYLE))
#define GTK_IS_STYLE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_STYLE))
#define GTK_STYLE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_STYLE, GtkStyleClass))

/* Some forward declarations needed to rationalize the header
* files.
*/
typedef struct _GtkStyle GtkStyle;
typedef struct _GtkStyleClass GtkStyleClass;
typedef struct _GtkThemeEngine GtkThemeEngine;
typedef struct _GtkRcStyle GtkRcStyle;
typedef struct _GtkIconSet GtkIconSet;
typedef struct _GtkIconSource GtkIconSource;
typedef struct _GtkRcProperty GtkRcProperty;
typedef struct _GtkSettings GtkSettings;
typedef gboolean (*GtkRcPropertyParser) (const GParamSpec *pspec,
const GString *rc_string,
GValue *property_value);

/**
* GTK_STYLE_ATTACHED:
* @style: a #GtkStyle.
*
* Returns whether the style is attached to a window.
*/
#define GTK_STYLE_ATTACHED(style) (GTK_STYLE (style)->attach_count > 0)

struct _GtkStyle
{
  GObject parent_instance;

  /*< public >*/

  GdkColor fg[5];
  GdkColor bg[5];
  GdkColor light[5];
  GdkColor dark[5];
  GdkColor mid[5];
  GdkColor text[5];
  GdkColor base[5];
  GdkColor text_aa[5]; /* Halfway between text/base */

  GdkColor black;
  GdkColor white;
  PangoFontDescription *font_desc;

  gint xthickness;
  gint ythickness;

  cairo_pattern_t *background[5];

  /*< private >*/

  gint attach_count;

  GdkVisual *visual;
  PangoFontDescription *private_font_desc; /* Font description for style->private_font or %NULL */

  /* the RcStyle from which this style was created */
  GtkRcStyle *rc_style;

  GSList *styles; /* of type GtkStyle* */
  GArray *property_cache;
  GSList *icon_factories; /* of type GtkIconFactory* */
};

struct _GtkStyleClass
{
  GObjectClass parent_class;

  /* Initialize for a particular visual. style->visual
* will have been set at this point. Will typically chain
* to parent.
*/
  void (*realize) (GtkStyle *style);

  /* Clean up for a particular visual. Will typically chain
* to parent.
*/
  void (*unrealize) (GtkStyle *style);

  /* Make style an exact duplicate of src.
*/
  void (*copy) (GtkStyle *style,
GtkStyle *src);

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

  /* Initialize the GtkStyle with the values in the GtkRcStyle.
* should chain to the parent implementation.
*/
  void (*init_from_rc) (GtkStyle *style,
GtkRcStyle *rc_style);

  void (*set_background) (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type);


  GdkPixbuf * (* render_icon) (GtkStyle *style,
                                 const GtkIconSource *source,
                                 GtkTextDirection direction,
                                 GtkStateType state,
                                 GtkIconSize size,
                                 GtkWidget *widget,
                                 const gchar *detail);

  /* Drawing functions
*/

  void (*draw_hline) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint x1,
gint x2,
gint y);
  void (*draw_vline) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint y1_,
gint y2_,
gint x);
  void (*draw_shadow) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
  void (*draw_arrow) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
GtkArrowType arrow_type,
gboolean fill,
gint x,
gint y,
gint width,
gint height);
  void (*draw_diamond) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
  void (*draw_box) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
  void (*draw_flat_box) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
  void (*draw_check) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
  void (*draw_option) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
  void (*draw_tab) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
  void (*draw_shadow_gap) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkPositionType gap_side,
gint gap_x,
gint gap_width);
  void (*draw_box_gap) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkPositionType gap_side,
gint gap_x,
gint gap_width);
  void (*draw_extension) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkPositionType gap_side);
  void (*draw_focus) (GtkStyle *style,
cairo_t *cr,
                                 GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
  void (*draw_slider) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkOrientation orientation);
  void (*draw_handle) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkOrientation orientation);

  void (*draw_expander) (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
                                 GtkExpanderStyle expander_style);
  void (*draw_layout) (GtkStyle *style,
                                 cairo_t *cr,
GtkStateType state_type,
gboolean use_text,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
                                 PangoLayout *layout);
  void (*draw_resize_grip) (GtkStyle *style,
                                 cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
                                 GdkWindowEdge edge,
gint x,
gint y,
gint width,
gint height);
  void (*draw_spinner) (GtkStyle *style,
                                 cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
guint step,
gint x,
gint y,
gint width,
gint height);

  /* Padding for future expansion */
  void (*_gtk_reserved1) (void);
  void (*_gtk_reserved2) (void);
  void (*_gtk_reserved3) (void);
  void (*_gtk_reserved4) (void);
  void (*_gtk_reserved5) (void);
  void (*_gtk_reserved6) (void);
  void (*_gtk_reserved7) (void);
  void (*_gtk_reserved8) (void);
  void (*_gtk_reserved9) (void);
  void (*_gtk_reserved10) (void);
  void (*_gtk_reserved11) (void);
};

#if !defined(GTK_DISABLE_DEPRECATED) || defined(GTK_COMPILATION)

GType gtk_style_get_type (void) G_GNUC_CONST;
GtkStyle* gtk_style_new (void);
GtkStyle* gtk_style_copy (GtkStyle *style);
GtkStyle* gtk_style_attach (GtkStyle *style,
GdkWindow *window) G_GNUC_WARN_UNUSED_RESULT;
void gtk_style_detach (GtkStyle *style);
void gtk_style_set_background (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type);
void gtk_style_apply_default_background (GtkStyle *style,
                                              cairo_t *cr,
GdkWindow *window,
GtkStateType state_type,
gint x,
gint y,
gint width,
gint height);

GtkIconSet* gtk_style_lookup_icon_set (GtkStyle *style,
                                              const gchar *stock_id);
gboolean gtk_style_lookup_color (GtkStyle *style,
                                              const gchar *color_name,
                                              GdkColor *color);

GdkPixbuf* gtk_style_render_icon (GtkStyle *style,
                                       const GtkIconSource *source,
                                       GtkTextDirection direction,
                                       GtkStateType state,
                                       GtkIconSize size,
                                       GtkWidget *widget,
                                       const gchar *detail);

void gtk_paint_hline (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x1,
                                  gint x2,
                                  gint y);
void gtk_paint_vline (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint y1_,
                                  gint y2_,
                                  gint x);
void gtk_paint_shadow (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkShadowType shadow_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height);
void gtk_paint_arrow (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkShadowType shadow_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  GtkArrowType arrow_type,
                                  gboolean fill,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height);
void gtk_paint_diamond (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkShadowType shadow_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height);
void gtk_paint_box (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkShadowType shadow_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height);
void gtk_paint_flat_box (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkShadowType shadow_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height);
void gtk_paint_check (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkShadowType shadow_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height);
void gtk_paint_option (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkShadowType shadow_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height);
void gtk_paint_tab (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkShadowType shadow_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height);
void gtk_paint_shadow_gap (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkShadowType shadow_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height,
                                  GtkPositionType gap_side,
                                  gint gap_x,
                                  gint gap_width);
void gtk_paint_box_gap (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkShadowType shadow_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height,
                                  GtkPositionType gap_side,
                                  gint gap_x,
                                  gint gap_width);
void gtk_paint_extension (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkShadowType shadow_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height,
                                  GtkPositionType gap_side);
void gtk_paint_focus (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height);
void gtk_paint_slider (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkShadowType shadow_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height,
                                  GtkOrientation orientation);
void gtk_paint_handle (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkShadowType shadow_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height,
                                  GtkOrientation orientation);
void gtk_paint_expander (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  GtkExpanderStyle expander_style);
void gtk_paint_layout (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  gboolean use_text,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  gint x,
                                  gint y,
                                  PangoLayout *layout);
void gtk_paint_resize_grip (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  GdkWindowEdge edge,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height);
void gtk_paint_spinner (GtkStyle *style,
                                  cairo_t *cr,
                                  GtkStateType state_type,
                                  GtkWidget *widget,
                                  const gchar *detail,
                                  guint step,
                                  gint x,
                                  gint y,
                                  gint width,
                                  gint height);

void gtk_style_get_style_property (GtkStyle *style,
                                   GType widget_type,
                                   const gchar *property_name,
                                   GValue *value);
void gtk_style_get_valist (GtkStyle *style,
                                   GType widget_type,
                                   const gchar *first_property_name,
                                   va_list var_args);
void gtk_style_get (GtkStyle *style,
                                   GType widget_type,
                                   const gchar *first_property_name,
                                   ...) G_GNUC_NULL_TERMINATED;

#endif

/* --- private API --- */
GtkStyle* _gtk_style_new_for_path (GdkScreen *screen,
GtkWidgetPath *path);
void _gtk_style_shade (const GdkColor *a,
                                              GdkColor *b,
                                              gdouble k);

void gtk_draw_insertion_cursor (GtkWidget *widget,
                                     cairo_t *cr,
                                     const GdkRectangle *location,
                                     gboolean is_primary,
                                     GtkTextDirection direction,
                                     gboolean draw_arrow);

gboolean gtk_style_has_context (GtkStyle *style);



G_END_DECLS

#endif /* __GTK_STYLE_H__ */
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