Pileus Git - ~andy/gtk/blob - gtk/gtkcellarea.h

   1 /* gtkcellarea.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_H__
  29 #define __GTK_CELL_AREA_H__
  30
  31 #include <gtk/gtkcellrenderer.h>
  32 #include <gtk/gtkwidget.h>
  33 #include <gtk/gtktreemodel.h>
  34 #include <gtk/gtkcellareaiter.h>
  35
  36 G_BEGIN_DECLS
  37
  38 #define GTK_TYPE_CELL_AREA                (gtk_cell_area_get_type ())
  39 #define GTK_CELL_AREA(obj)                (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_CELL_AREA, GtkCellArea))
  40 #define GTK_CELL_AREA_CLASS(klass)        (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_CELL_AREA, GtkCellAreaClass))
  41 #define GTK_IS_CELL_AREA(obj)     (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_CELL_AREA))
  42 #define GTK_IS_CELL_AREA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_CELL_AREA))
  43 #define GTK_CELL_AREA_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CELL_AREA, GtkCellAreaClass))
  44
  45 typedef struct _GtkCellArea              GtkCellArea;
  46 typedef struct _GtkCellAreaClass         GtkCellAreaClass;
  47 typedef struct _GtkCellAreaPrivate       GtkCellAreaPrivate;
  48
  49 /**
  50  * GtkCellCallback:
  51  * @renderer: the cell renderer to operate on
  52  * @data: user-supplied data
  53  *
  54  * The type of the callback functions used for iterating over
  55  * the cell renderers of a #GtkCellArea, see gtk_cell_area_forall().
  56  */
  57 typedef void    (*GtkCellCallback)     (GtkCellRenderer  *renderer,
  58                                         gpointer          data);
  59
  60
  61 struct _GtkCellArea
  62 {
  63   GInitiallyUnowned parent_instance;
  64
  65   GtkCellAreaPrivate *priv;
  66 };
  67
  68 struct _GtkCellAreaClass
  69 {
  70   GInitiallyUnownedClass parent_class;
  71
  72   /* vtable - not signals */
  73
  74   /* Basic methods */
  75   void               (* add)                             (GtkCellArea             *area,
  76                                                           GtkCellRenderer         *renderer);
  77   void               (* remove)                          (GtkCellArea             *area,
  78                                                           GtkCellRenderer         *renderer);
  79   void               (* forall)                          (GtkCellArea             *area,
  80                                                           GtkCellCallback          callback,
  81                                                           gpointer                 callback_data);
  82   gint               (* event)                           (GtkCellArea             *area,
  83                                                           GtkWidget               *widget,
  84                                                           GdkEvent                *event,
  85                                                           const GdkRectangle      *cell_area);
  86   void               (* render)                          (GtkCellArea             *area,
  87                                                           cairo_t                 *cr,
  88                                                           GtkWidget               *widget,
  89                                                           const GdkRectangle      *cell_area);
  90
  91   /* Geometry */
  92   GtkCellAreaIter   *(* create_iter)                     (GtkCellArea             *area);
  93   GtkSizeRequestMode (* get_request_mode)                (GtkCellArea             *area);
  94   void               (* get_preferred_width)             (GtkCellArea             *area,
  95                                                           GtkCellAreaIter         *iter,
  96                                                           GtkWidget               *widget,
  97                                                           gint                    *minimum_size,
  98                                                           gint                    *natural_size);
  99   void               (* get_preferred_height_for_width)  (GtkCellArea             *area,
 100                                                           GtkCellAreaIter         *iter,
 101                                                           GtkWidget               *widget,
 102                                                           gint                     width,
 103                                                           gint                    *minimum_height,
 104                                                           gint                    *natural_height);
 105   void               (* get_preferred_height)            (GtkCellArea             *area,
 106                                                           GtkCellAreaIter         *iter,
 107                                                           GtkWidget               *widget,
 108                                                           gint                    *minimum_size,
 109                                                           gint                    *natural_size);
 110   void               (* get_preferred_width_for_height)  (GtkCellArea             *area,
 111                                                           GtkCellAreaIter         *iter,
 112                                                           GtkWidget               *widget,
 113                                                           gint                     height,
 114                                                           gint                    *minimum_width,
 115                                                           gint                    *natural_width);
 116
 117
 118   /* Padding for future expansion */
 119   void (*_gtk_reserved1) (void);
 120   void (*_gtk_reserved2) (void);
 121   void (*_gtk_reserved3) (void);
 122   void (*_gtk_reserved4) (void);
 123   void (*_gtk_reserved5) (void);
 124   void (*_gtk_reserved6) (void);
 125   void (*_gtk_reserved7) (void);
 126   void (*_gtk_reserved8) (void);
 127 };
 128
 129 GType              gtk_cell_area_get_type                       (void) G_GNUC_CONST;
 130
 131 /* Basic methods */
 132 void               gtk_cell_area_add                            (GtkCellArea        *area,
 133                                                                  GtkCellRenderer    *renderer);
 134 void               gtk_cell_area_remove                         (GtkCellArea        *area,
 135                                                                  GtkCellRenderer    *renderer);
 136 void               gtk_cell_area_forall                         (GtkCellArea        *area,
 137                                                                  GtkCellCallback     callback,
 138                                                                  gpointer            callback_data);
 139 gint               gtk_cell_area_event                          (GtkCellArea        *area,
 140                                                                  GtkWidget          *widget,
 141                                                                  GdkEvent           *event,
 142                                                                  const GdkRectangle *cell_area);
 143 void               gtk_cell_area_render                         (GtkCellArea        *area,
 144                                                                  cairo_t            *cr,
 145                                                                  GtkWidget          *widget,
 146                                                                  const GdkRectangle *cell_area);
 147
 148 /* Geometry */
 149 GtkCellAreaIter   *gtk_cell_area_create_iter                    (GtkCellArea        *area);
 150 GtkSizeRequestMode gtk_cell_area_get_request_mode               (GtkCellArea        *area);
 151 void               gtk_cell_area_get_preferred_width            (GtkCellArea        *area,
 152                                                                  GtkCellAreaIter    *iter,
 153                                                                  GtkWidget          *widget,
 154                                                                  gint               *minimum_size,
 155                                                                  gint               *natural_size);
 156 void               gtk_cell_area_get_preferred_height_for_width (GtkCellArea        *area,
 157                                                                  GtkCellAreaIter    *iter,
 158                                                                  GtkWidget          *widget,
 159                                                                  gint                width,
 160                                                                  gint               *minimum_height,
 161                                                                  gint               *natural_height);
 162 void               gtk_cell_area_get_preferred_height           (GtkCellArea        *area,
 163                                                                  GtkCellAreaIter    *iter,
 164                                                                  GtkWidget          *widget,
 165                                                                  gint               *minimum_size,
 166                                                                  gint               *natural_size);
 167 void               gtk_cell_area_get_preferred_width_for_height (GtkCellArea        *area,
 168                                                                  GtkCellAreaIter    *iter,
 169                                                                  GtkWidget          *widget,
 170                                                                  gint                height,
 171                                                                  gint               *minimum_width,
 172                                                                  gint               *natural_width);
 173
 174
 175 /* Following apis are not class virtual methods */
 176 void               gtk_cell_area_apply_attributes               (GtkCellArea        *area,
 177                                                                  GtkTreeModel       *tree_model,
 178                                                                  GtkTreeIter        *iter);
 179 void               gtk_cell_area_attribute_connect              (GtkCellArea        *area,
 180                                                                  GtkCellRenderer    *renderer,
 181                                                                  const gchar        *attribute,
 182                                                                  gint                column);
 183 void               gtk_cell_area_attribute_disconnect           (GtkCellArea        *area,
 184                                                                  GtkCellRenderer    *renderer,
 185                                                                  const gchar        *attribute);
 186
 187
 188 G_END_DECLS
 189
 190 #endif /* __GTK_CELL_AREA_H__ */