]> Pileus Git - ~andy/gtk/blob - gtk/gtkcellareacontext.h
Marking GtkCellArea structure portions as /*< private >*/
[~andy/gtk] / gtk / gtkcellareacontext.h
1 /* gtkcellareacontext.h
2  *
3  * Copyright (C) 2010 Openismus GmbH
4  *
5  * Authors:
6  *      Tristan Van Berkom <tristanvb@openismus.com>
7  *
8  * This library is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Library General Public
10  * License as published by the Free Software Foundation; either
11  * version 2 of the License, or (at your option) any later version.
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Library General Public License for more details.
17  *
18  * You should have received a copy of the GNU Library General Public
19  * License along with this library; if not, write to the
20  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21  * Boston, MA 02111-1307, USA.
22  */
23
24 #if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
25 #error "Only <gtk/gtk.h> can be included directly."
26 #endif
27
28 #ifndef __GTK_CELL_AREA_CONTEXT_H__
29 #define __GTK_CELL_AREA_CONTEXT_H__
30
31 #include <gtk/gtkcellarea.h>
32
33 G_BEGIN_DECLS
34
35 #define GTK_TYPE_CELL_AREA_CONTEXT            (gtk_cell_area_context_get_type ())
36 #define GTK_CELL_AREA_CONTEXT(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_CELL_AREA_CONTEXT, GtkCellAreaContext))
37 #define GTK_CELL_AREA_CONTEXT_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_CELL_AREA_CONTEXT, GtkCellAreaContextClass))
38 #define GTK_IS_CELL_AREA_CONTEXT(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_CELL_AREA_CONTEXT))
39 #define GTK_IS_CELL_AREA_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_CELL_AREA_CONTEXT))
40 #define GTK_CELL_AREA_CONTEXT_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CELL_AREA_CONTEXT, GtkCellAreaContextClass))
41
42 typedef struct _GtkCellAreaContextPrivate       GtkCellAreaContextPrivate;
43 typedef struct _GtkCellAreaContextClass         GtkCellAreaContextClass;
44
45 struct _GtkCellAreaContext
46 {
47   /*< private >*/
48   GObject parent_instance;
49
50   GtkCellAreaContextPrivate *priv;
51 };
52
53 /**
54  * GtkCellAreaContextClass:
55  * @allocate: This tells the context that an allocation width or height (or both)
56  * have been decided for a group of rows. The context should store any allocations
57  * for internally aligned cells at this point so that they dont need to be
58  * recalculated at gtk_cell_area_render() time.
59  * @reset: Clear any previously stored information about requested and allocated
60  * sizes for the context.
61  */
62 struct _GtkCellAreaContextClass
63 {
64   /*< private >*/
65   GObjectClass parent_class;
66
67   /*< public >*/
68   void    (* allocate)               (GtkCellAreaContext *context,
69                                       gint                width,
70                                       gint                height);
71   void    (* reset)                  (GtkCellAreaContext *context);
72
73   /*< private >*/
74   /* Padding for future expansion */
75   void (*_gtk_reserved1) (void);
76   void (*_gtk_reserved2) (void);
77   void (*_gtk_reserved3) (void);
78   void (*_gtk_reserved4) (void);
79 };
80
81 GType        gtk_cell_area_context_get_type              (void) G_GNUC_CONST;
82
83 /* Main apis */
84 GtkCellArea *gtk_cell_area_context_get_area              (GtkCellAreaContext *context);
85 void         gtk_cell_area_context_allocate              (GtkCellAreaContext *context,
86                                                           gint                width,
87                                                           gint                height);
88 void         gtk_cell_area_context_reset                 (GtkCellAreaContext *context);
89
90 /* Apis for GtkCellArea clients to consult cached values for a series of GtkTreeModel rows */
91 void         gtk_cell_area_context_get_preferred_width   (GtkCellAreaContext *context,
92                                                           gint               *minimum_width,
93                                                           gint               *natural_width);
94 void         gtk_cell_area_context_get_preferred_height  (GtkCellAreaContext *context,
95                                                           gint               *minimum_height,
96                                                           gint               *natural_height);
97 void         gtk_cell_area_context_get_allocation        (GtkCellAreaContext *context,
98                                                           gint               *width,
99                                                           gint               *height);
100
101 /* Apis for GtkCellArea implementations to update cached values for multiple GtkTreeModel rows */
102 void         gtk_cell_area_context_push_preferred_width  (GtkCellAreaContext *context,
103                                                           gint                minimum_width,
104                                                           gint                natural_width);
105 void         gtk_cell_area_context_push_preferred_height (GtkCellAreaContext *context,
106                                                           gint                minimum_height,
107                                                           gint                natural_height);
108
109 G_END_DECLS
110
111 #endif /* __GTK_CELL_AREA_CONTEXT_H__ */