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
  35 G_BEGIN_DECLS
  36
  37 #define GTK_TYPE_CELL_AREA                (gtk_cell_area_get_type ())
  38 #define GTK_CELL_AREA(obj)                (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_CELL_AREA, GtkCellArea))
  39 #define GTK_CELL_AREA_CLASS(klass)        (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_CELL_AREA, GtkCellAreaClass))
  40 #define GTK_IS_CELL_AREA(obj)     (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_CELL_AREA))
  41 #define GTK_IS_CELL_AREA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_CELL_AREA))
  42 #define GTK_CELL_AREA_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CELL_AREA, GtkCellAreaClass))
  43
  44 typedef struct _GtkCellArea              GtkCellArea;
  45 typedef struct _GtkCellAreaClass         GtkCellAreaClass;
  46 typedef struct _GtkCellAreaPrivate       GtkCellAreaPrivate;
  47 typedef struct _GtkCellAreaIter          GtkCellAreaIter;
  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                                                           GtkCellAreaIter         *iter,
  84                                                           GtkWidget               *widget,
  85                                                           GdkEvent                *event,
  86                                                           const GdkRectangle      *cell_area,
  87                                                           GtkCellRendererState     flags);
  88   void               (* render)                          (GtkCellArea             *area,
  89                                                           GtkCellAreaIter         *iter,
  90                                                           GtkWidget               *widget,
  91                                                           cairo_t                 *cr,
  92                                                           const GdkRectangle      *cell_area,
  93                                                           GtkCellRendererState     flags);
  94
  95   /* Geometry */
  96   GtkCellAreaIter   *(* create_iter)                     (GtkCellArea             *area);
  97   GtkSizeRequestMode (* get_request_mode)                (GtkCellArea             *area);
  98   void               (* get_preferred_width)             (GtkCellArea             *area,
  99                                                           GtkCellAreaIter         *iter,
 100                                                           GtkWidget               *widget,
 101                                                           gint                    *minimum_size,
 102                                                           gint                    *natural_size);
 103   void               (* get_preferred_height_for_width)  (GtkCellArea             *area,
 104                                                           GtkCellAreaIter         *iter,
 105                                                           GtkWidget               *widget,
 106                                                           gint                     width,
 107                                                           gint                    *minimum_height,
 108                                                           gint                    *natural_height);
 109   void               (* get_preferred_height)            (GtkCellArea             *area,
 110                                                           GtkCellAreaIter         *iter,
 111                                                           GtkWidget               *widget,
 112                                                           gint                    *minimum_size,
 113                                                           gint                    *natural_size);
 114   void               (* get_preferred_width_for_height)  (GtkCellArea             *area,
 115                                                           GtkCellAreaIter         *iter,
 116                                                           GtkWidget               *widget,
 117                                                           gint                     height,
 118                                                           gint                    *minimum_width,
 119                                                           gint                    *natural_width);
 120
 121   /* Cell Properties */
 122   void               (* set_cell_property)               (GtkCellArea             *area,
 123                                                           GtkCellRenderer         *renderer,
 124                                                           guint                    property_id,
 125                                                           const GValue            *value,
 126                                                           GParamSpec              *pspec);
 127   void               (* get_cell_property)               (GtkCellArea             *area,
 128                                                           GtkCellRenderer         *renderer,
 129                                                           guint                    property_id,
 130                                                           GValue                  *value,
 131                                                           GParamSpec              *pspec);
 132
 133   /* Focus */
 134   void               (* grab_focus)                      (GtkCellArea             *area,
 135                                                           GtkDirectionType         direction);
 136   void               (* update_focus)                    (GtkCellArea             *area);
 137
 138   /* Padding for future expansion */
 139   void (*_gtk_reserved1) (void);
 140   void (*_gtk_reserved2) (void);
 141   void (*_gtk_reserved3) (void);
 142   void (*_gtk_reserved4) (void);
 143   void (*_gtk_reserved5) (void);
 144   void (*_gtk_reserved6) (void);
 145   void (*_gtk_reserved7) (void);
 146   void (*_gtk_reserved8) (void);
 147 };
 148
 149 GType              gtk_cell_area_get_type                       (void) G_GNUC_CONST;
 150
 151 /* Basic methods */
 152 void               gtk_cell_area_add                            (GtkCellArea          *area,
 153                                                                  GtkCellRenderer      *renderer);
 154 void               gtk_cell_area_remove                         (GtkCellArea          *area,
 155                                                                  GtkCellRenderer      *renderer);
 156 void               gtk_cell_area_forall                         (GtkCellArea          *area,
 157                                                                  GtkCellCallback       callback,
 158                                                                  gpointer              callback_data);
 159 gint               gtk_cell_area_event                          (GtkCellArea          *area,
 160                                                                  GtkCellAreaIter      *iter,
 161                                                                  GtkWidget            *widget,
 162                                                                  GdkEvent             *event,
 163                                                                  const GdkRectangle   *cell_area,
 164                                                                  GtkCellRendererState  flags);
 165 void               gtk_cell_area_render                         (GtkCellArea          *area,
 166                                                                  GtkCellAreaIter      *iter,
 167                                                                  GtkWidget            *widget,
 168                                                                  cairo_t              *cr,
 169                                                                  const GdkRectangle   *cell_area,
 170                                                                  GtkCellRendererState  flags);
 171
 172 /* Geometry */
 173 GtkCellAreaIter   *gtk_cell_area_create_iter                    (GtkCellArea        *area);
 174 GtkSizeRequestMode gtk_cell_area_get_request_mode               (GtkCellArea        *area);
 175 void               gtk_cell_area_get_preferred_width            (GtkCellArea        *area,
 176                                                                  GtkCellAreaIter    *iter,
 177                                                                  GtkWidget          *widget,
 178                                                                  gint               *minimum_size,
 179                                                                  gint               *natural_size);
 180 void               gtk_cell_area_get_preferred_height_for_width (GtkCellArea        *area,
 181                                                                  GtkCellAreaIter    *iter,
 182                                                                  GtkWidget          *widget,
 183                                                                  gint                width,
 184                                                                  gint               *minimum_height,
 185                                                                  gint               *natural_height);
 186 void               gtk_cell_area_get_preferred_height           (GtkCellArea        *area,
 187                                                                  GtkCellAreaIter    *iter,
 188                                                                  GtkWidget          *widget,
 189                                                                  gint               *minimum_size,
 190                                                                  gint               *natural_size);
 191 void               gtk_cell_area_get_preferred_width_for_height (GtkCellArea        *area,
 192                                                                  GtkCellAreaIter    *iter,
 193                                                                  GtkWidget          *widget,
 194                                                                  gint                height,
 195                                                                  gint               *minimum_width,
 196                                                                  gint               *natural_width);
 197
 198 /* Attributes */
 199 void               gtk_cell_area_apply_attributes               (GtkCellArea        *area,
 200                                                                  GtkTreeModel       *tree_model,
 201                                                                  GtkTreeIter        *iter,
 202                                                                  gboolean            is_expander,
 203                                                                  gboolean            is_expanded);
 204 void               gtk_cell_area_attribute_connect              (GtkCellArea        *area,
 205                                                                  GtkCellRenderer    *renderer,
 206                                                                  const gchar        *attribute,
 207                                                                  gint                column);
 208 void               gtk_cell_area_attribute_disconnect           (GtkCellArea        *area,
 209                                                                  GtkCellRenderer    *renderer,
 210                                                                  const gchar        *attribute);
 211
 212 /* Cell Properties */
 213 void               gtk_cell_area_class_install_cell_property    (GtkCellAreaClass   *aclass,
 214                                                                  guint               property_id,
 215                                                                  GParamSpec         *pspec);
 216 GParamSpec*        gtk_cell_area_class_find_cell_property       (GtkCellAreaClass   *aclass,
 217                                                                  const gchar        *property_name);
 218 GParamSpec**       gtk_cell_area_class_list_cell_properties     (GtkCellAreaClass   *aclass,
 219                                                                  guint              *n_properties);
 220 void               gtk_cell_area_add_with_properties            (GtkCellArea        *area,
 221                                                                  GtkCellRenderer    *renderer,
 222                                                                  const gchar        *first_prop_name,
 223                                                                  ...) G_GNUC_NULL_TERMINATED;
 224 void               gtk_cell_area_cell_set                       (GtkCellArea        *area,
 225                                                                  GtkCellRenderer    *renderer,
 226                                                                  const gchar        *first_prop_name,
 227                                                                  ...) G_GNUC_NULL_TERMINATED;
 228 void               gtk_cell_area_cell_get                       (GtkCellArea        *area,
 229                                                                  GtkCellRenderer    *renderer,
 230                                                                  const gchar        *first_prop_name,
 231                                                                  ...) G_GNUC_NULL_TERMINATED;
 232 void               gtk_cell_area_cell_set_valist                (GtkCellArea        *area,
 233                                                                  GtkCellRenderer    *renderer,
 234                                                                  const gchar        *first_property_name,
 235                                                                  va_list             var_args);
 236 void               gtk_cell_area_cell_get_valist                (GtkCellArea        *area,
 237                                                                  GtkCellRenderer    *renderer,
 238                                                                  const gchar        *first_property_name,
 239                                                                  va_list             var_args);
 240 void               gtk_cell_area_cell_set_property              (GtkCellArea        *area,
 241                                                                  GtkCellRenderer    *renderer,
 242                                                                  const gchar        *property_name,
 243                                                                  const GValue       *value);
 244 void               gtk_cell_area_cell_get_property              (GtkCellArea        *area,
 245                                                                  GtkCellRenderer    *renderer,
 246                                                                  const gchar        *property_name,
 247                                                                  GValue             *value);
 248
 249 #define GTK_CELL_AREA_WARN_INVALID_CHILD_PROPERTY_ID(object, property_id, pspec) \
 250   G_OBJECT_WARN_INVALID_PSPEC ((object), "cell property id", (property_id), (pspec))
 251
 252
 253 /* Focus */
 254 void               gtk_cell_area_grab_focus                     (GtkCellArea        *area,
 255                                                                  GtkDirectionType    direction);
 256 void               gtk_cell_area_focus_leave                    (GtkCellArea        *area,
 257                                                                  GtkDirectionType    direction,
 258                                                                  const gchar        *path);
 259 void               gtk_cell_area_update_focus                   (GtkCellArea        *area);
 260 void               gtk_cell_area_set_can_focus                  (GtkCellArea        *area,
 261                                                                  gboolean            can_focus);
 262 gboolean           gtk_cell_area_get_can_focus                  (GtkCellArea        *area);
 263 void               gtk_cell_area_set_focus_cell                 (GtkCellArea        *area,
 264                                                                  GtkCellRenderer    *renderer);
 265 GtkCellRenderer   *gtk_cell_area_get_focus_cell                 (GtkCellArea        *area);
 266
 267
 268
 269 /* Margins */
 270 gint               gtk_cell_area_get_cell_margin_left           (GtkCellArea        *area);
 271 void               gtk_cell_area_set_cell_margin_left           (GtkCellArea        *area,
 272                                                                  gint                margin);
 273 gint               gtk_cell_area_get_cell_margin_right          (GtkCellArea        *area);
 274 void               gtk_cell_area_set_cell_margin_right          (GtkCellArea        *area,
 275                                                                  gint                margin);
 276 gint               gtk_cell_area_get_cell_margin_top            (GtkCellArea        *area);
 277 void               gtk_cell_area_set_cell_margin_top            (GtkCellArea        *area,
 278                                                                  gint                margin);
 279 gint               gtk_cell_area_get_cell_margin_bottom         (GtkCellArea        *area);
 280 void               gtk_cell_area_set_cell_margin_bottom         (GtkCellArea        *area,
 281                                                                  gint                margin);
 282
 283 /* Functions for area implementations */
 284
 285 /* Distinguish the inner cell area from the whole requested area including margins */
 286 void               gtk_cell_area_inner_cell_area                (GtkCellArea        *area,
 287                                                                  GdkRectangle       *cell_area,
 288                                                                  GdkRectangle       *inner_cell_area);
 289
 290 /* Request the size of a cell while respecting the cell margins (requests are margin inclusive) */
 291 void               gtk_cell_area_request_renderer               (GtkCellArea        *area,
 292                                                                  GtkCellRenderer    *renderer,
 293                                                                  GtkOrientation      orientation,
 294                                                                  GtkWidget          *widget,
 295                                                                  gint                for_size,
 296                                                                  gint               *minimum_size,
 297                                                                  gint               *natural_size);
 298
 299 G_END_DECLS
 300
 301 #endif /* __GTK_CELL_AREA_H__ */