gtkfontchooser.h 5.05 KB
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/* GTK - The GIMP Toolkit
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 * gtkfontchooser.h - Abstract interface for font file selectors GUIs
 *
 * Copyright (C) 2006, Emmanuele Bassi
 * Copyright (C) 2011 Alberto Ruiz <aruiz@gnome.org>
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 *
 * 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
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
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 */

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#ifndef __GTK_FONT_CHOOSER_H__
#define __GTK_FONT_CHOOSER_H__

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

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#include <gtk/gtkwidget.h>
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G_BEGIN_DECLS

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/**
 * GtkFontFilterFunc:
 * @family: a #PangoFontFamily
 * @face: a #PangoFontFace belonging to @family
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 * @data: (closure): user data passed to gtk_font_chooser_set_filter_func()
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 *
 * The type of function that is used for deciding what fonts get
 * shown in a #GtkFontChooser. See gtk_font_chooser_set_filter_func().
 *
 * Returns: %TRUE if the font should be displayed
 */
typedef gboolean (*GtkFontFilterFunc) (const PangoFontFamily *family,
                                       const PangoFontFace   *face,
                                       gpointer               data);

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#define GTK_TYPE_FONT_CHOOSER			(gtk_font_chooser_get_type ())
#define GTK_FONT_CHOOSER(obj)			(G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_FONT_CHOOSER, GtkFontChooser))
#define GTK_IS_FONT_CHOOSER(obj)		(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_FONT_CHOOSER))
#define GTK_FONT_CHOOSER_GET_IFACE(inst)	(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GTK_TYPE_FONT_CHOOSER, GtkFontChooserIface))

typedef struct _GtkFontChooser      GtkFontChooser; /* dummy */
typedef struct _GtkFontChooserIface GtkFontChooserIface;

struct _GtkFontChooserIface
{
  GTypeInterface base_iface;

  /* Methods */
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  PangoFontFamily * (* get_font_family)         (GtkFontChooser  *fontchooser);
  PangoFontFace *   (* get_font_face)           (GtkFontChooser  *fontchooser);
  gint              (* get_font_size)           (GtkFontChooser  *fontchooser);
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  void              (* set_filter_func)         (GtkFontChooser   *fontchooser,
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                                                 GtkFontFilterFunc filter,
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                                                 gpointer          user_data,
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                                                 GDestroyNotify    destroy);

  /* Signals */
  void (* font_activated) (GtkFontChooser *chooser,
                           const gchar    *fontname);

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   /* Padding */
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  gpointer padding[12];
};

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GDK_AVAILABLE_IN_3_2
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GType            gtk_font_chooser_get_type                 (void) G_GNUC_CONST;

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PangoFontFamily *gtk_font_chooser_get_font_family          (GtkFontChooser   *fontchooser);
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PangoFontFace   *gtk_font_chooser_get_font_face            (GtkFontChooser   *fontchooser);
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gint             gtk_font_chooser_get_font_size            (GtkFontChooser   *fontchooser);
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PangoFontDescription *
                 gtk_font_chooser_get_font_desc            (GtkFontChooser             *fontchooser);
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void             gtk_font_chooser_set_font_desc            (GtkFontChooser             *fontchooser,
                                                            const PangoFontDescription *font_desc);

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gchar*           gtk_font_chooser_get_font                 (GtkFontChooser   *fontchooser);
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void             gtk_font_chooser_set_font                 (GtkFontChooser   *fontchooser,
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                                                            const gchar      *fontname);
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gchar*           gtk_font_chooser_get_preview_text         (GtkFontChooser   *fontchooser);
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void             gtk_font_chooser_set_preview_text         (GtkFontChooser   *fontchooser,
                                                            const gchar      *text);
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gboolean         gtk_font_chooser_get_show_preview_entry   (GtkFontChooser   *fontchooser);
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void             gtk_font_chooser_set_show_preview_entry   (GtkFontChooser   *fontchooser,
                                                            gboolean          show_preview_entry);
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void             gtk_font_chooser_set_filter_func          (GtkFontChooser   *fontchooser,
                                                            GtkFontFilterFunc filter,
                                                            gpointer          user_data,
                                                            GDestroyNotify    destroy);
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G_END_DECLS
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#endif /* __GTK_FONT_CHOOSER_H__ */