src/gtk/gtkcmctree.h

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball, Josh MacDonald
   3  * Copyright (C) 1997-1998 Jay Painter <jpaint@serv.net><jpaint@gimp.org>
   4  *
   5  * GtkCMCTree widget for GTK+
   6  * Copyright (C) 1998 Lars Hamann and Stefan Jeske
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser 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  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser 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 /*
  25  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  26  * file for a list of people on the GTK+ Team.  See the ChangeLog
  27  * files for a list of changes.  These files are distributed with
  28  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  29  */
  30
  31 #ifndef __GTK_CMCTREE_H__
  32 #define __GTK_CMCTREE_H__
  33
  34 #include "gtkcmclist.h"
  35
  36 G_BEGIN_DECLS
  37
  38 #define GTK_TYPE_CMCTREE            (gtk_cmctree_get_type ())
  39 #define GTK_CMCTREE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_CMCTREE, GtkCMCTree))
  40 #define GTK_CMCTREE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_CMCTREE, GtkCMCTreeClass))
  41 #define GTK_IS_CMCTREE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_CMCTREE))
  42 #define GTK_IS_CMCTREE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_CMCTREE))
  43 #define GTK_CMCTREE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CMCTREE, GtkCMCTreeClass))
  44
  45 #define GTK_CMCTREE_ROW(_node_) ((GtkCMCTreeRow *)(((GList *)(_node_))->data))
  46 #define GTK_CMCTREE_NODE(_node_) ((GtkCMCTreeNode *)((_node_)))
  47 #define GTK_CMCTREE_NODE_NEXT(_nnode_) ((GtkCMCTreeNode *)(((GList *)(_nnode_))->next))
  48 #define GTK_CMCTREE_NODE_PREV(_pnode_) ((GtkCMCTreeNode *)(((GList *)(_pnode_))->prev))
  49 #define GTK_CMCTREE_FUNC(_func_) ((GtkCMCTreeFunc)(_func_))
  50
  51 #define GTK_TYPE_CMCTREE_NODE (gtk_cmctree_node_get_type ())
  52
  53 GType gtk_cmctree_pos_get_type (void) G_GNUC_CONST;
  54 #define GTK_TYPE_CMCTREE_POS (gtk_cmctree_pos_get_type())
  55 GType gtk_cmctree_line_style_get_type (void) G_GNUC_CONST;
  56 #define GTK_TYPE_CMCTREE_LINE_STYLE (gtk_cmctree_line_style_get_type())
  57 GType gtk_cmctree_expander_style_get_type (void) G_GNUC_CONST;
  58 #define GTK_TYPE_CMCTREE_EXPANDER_STYLE (gtk_cmctree_expander_style_get_type())
  59 GType gtk_cmctree_expansion_type_get_type (void) G_GNUC_CONST;
  60 #define GTK_TYPE_CMCTREE_EXPANSION_TYPE (gtk_cmctree_expansion_type_get_type())
  61
  62 typedef enum
  63 {
  64   GTK_CMCTREE_POS_BEFORE,
  65   GTK_CMCTREE_POS_AS_CHILD,
  66   GTK_CMCTREE_POS_AFTER
  67 } GtkCMCTreePos;
  68
  69 typedef enum
  70 {
  71   GTK_CMCTREE_LINES_NONE,
  72   GTK_CMCTREE_LINES_SOLID,
  73   GTK_CMCTREE_LINES_DOTTED,
  74   GTK_CMCTREE_LINES_TABBED
  75 } GtkCMCTreeLineStyle;
  76
  77 typedef enum
  78 {
  79   GTK_CMCTREE_EXPANDER_NONE,
  80   GTK_CMCTREE_EXPANDER_SQUARE,
  81   GTK_CMCTREE_EXPANDER_TRIANGLE,
  82   GTK_CMCTREE_EXPANDER_CIRCULAR
  83 } GtkCMCTreeExpanderStyle;
  84
  85 typedef enum
  86 {
  87   GTK_CMCTREE_EXPANSION_EXPAND,
  88   GTK_CMCTREE_EXPANSION_EXPAND_RECURSIVE,
  89   GTK_CMCTREE_EXPANSION_COLLAPSE,
  90   GTK_CMCTREE_EXPANSION_COLLAPSE_RECURSIVE,
  91   GTK_CMCTREE_EXPANSION_TOGGLE,
  92   GTK_CMCTREE_EXPANSION_TOGGLE_RECURSIVE
  93 } GtkCMCTreeExpansionType;
  94
  95 typedef struct _GtkCMCTree      GtkCMCTree;
  96 typedef struct _GtkCMCTreeClass GtkCMCTreeClass;
  97 typedef struct _GtkCMCTreeRow   GtkCMCTreeRow;
  98 typedef struct _GtkCMCTreeNode  GtkCMCTreeNode;
  99
 100 typedef void (*GtkCMCTreeFunc) (GtkCMCTree     *ctree,
 101                               GtkCMCTreeNode *node,
 102                               gpointer      data);
 103
 104 typedef gboolean (*GtkCMCTreeGNodeFunc) (GtkCMCTree     *ctree,
 105                                        guint         depth,
 106                                        GNode        *gnode,
 107                                        GtkCMCTreeNode *cnode,
 108                                        gpointer      data);
 109
 110 typedef gboolean (*GtkCMCTreeCompareDragFunc) (GtkCMCTree     *ctree,
 111                                              GtkCMCTreeNode *source_node,
 112                                              GtkCMCTreeNode *new_parent,
 113                                              GtkCMCTreeNode *new_sibling);
 114
 115 struct _GtkCMCTree
 116 {
 117   GtkCMCList clist;
 118
 119   GdkGC *lines_gc;
 120
 121   gint tree_indent;
 122   gint tree_spacing;
 123   gint tree_column;
 124
 125   guint line_style     : 2;
 126   guint expander_style : 2;
 127   guint show_stub      : 1;
 128
 129   GtkCMCTreeCompareDragFunc drag_compare;
 130 };
 131
 132 struct _GtkCMCTreeClass
 133 {
 134   GtkCMCListClass parent_class;
 135
 136   void (*tree_select_row)   (GtkCMCTree     *ctree,
 137                              GtkCMCTreeNode *row,
 138                              gint          column);
 139   void (*tree_unselect_row) (GtkCMCTree     *ctree,
 140                              GtkCMCTreeNode *row,
 141                              gint          column);
 142   void (*tree_expand)       (GtkCMCTree     *ctree,
 143                              GtkCMCTreeNode *node);
 144   void (*tree_collapse)     (GtkCMCTree     *ctree,
 145                              GtkCMCTreeNode *node);
 146   void (*tree_move)         (GtkCMCTree     *ctree,
 147                              GtkCMCTreeNode *node,
 148                              GtkCMCTreeNode *new_parent,
 149                              GtkCMCTreeNode *new_sibling);
 150   void (*change_focus_row_expansion) (GtkCMCTree *ctree,
 151                                       GtkCMCTreeExpansionType action);
 152 };
 153
 154 struct _GtkCMCTreeRow
 155 {
 156   GtkCMCListRow row;
 157
 158   GtkCMCTreeNode *parent;
 159   GtkCMCTreeNode *sibling;
 160   GtkCMCTreeNode *children;
 161
 162   GdkPixbuf *pixbuf_closed;
 163   GdkPixbuf *pixbuf_opened;
 164
 165   guint16 level;
 166
 167   guint is_leaf  : 1;
 168   guint expanded : 1;
 169 };
 170
 171 struct _GtkCMCTreeNode {
 172   GList list;
 173 };
 174
 175
 176 /***********************************************************
 177  *           Creation, insertion, deletion                 *
 178  ***********************************************************/
 179
 180 GType gtk_cmctree_get_type                       (void);
 181 GtkWidget * gtk_cmctree_new_with_titles            (gint          columns,
 182                                                   gint          tree_column,
 183                                                   gchar        *titles[]);
 184 GtkWidget * gtk_cmctree_new                        (gint          columns,
 185                                                   gint          tree_column);
 186 GtkCMCTreeNode * gtk_cmctree_insert_node             (GtkCMCTree     *ctree,
 187                                                   GtkCMCTreeNode *parent,
 188                                                   GtkCMCTreeNode *sibling,
 189                                                   gchar        *text[],
 190                                                   guint8        spacing,
 191                                                   GdkPixbuf    *pixbuf_closed,
 192                                                   GdkPixbuf    *pixbuf_opened,
 193                                                   gboolean      is_leaf,
 194                                                   gboolean      expanded);
 195 void gtk_cmctree_remove_node                       (GtkCMCTree     *ctree,
 196                                                   GtkCMCTreeNode *node);
 197 GtkCMCTreeNode * gtk_cmctree_insert_gnode            (GtkCMCTree          *ctree,
 198                                                   GtkCMCTreeNode      *parent,
 199                                                   GtkCMCTreeNode      *sibling,
 200                                                   GNode             *gnode,
 201                                                   GtkCMCTreeGNodeFunc  func,
 202                                                   gpointer           data);
 203 GNode * gtk_cmctree_export_to_gnode                (GtkCMCTree          *ctree,
 204                                                   GNode             *parent,
 205                                                   GNode             *sibling,
 206                                                   GtkCMCTreeNode      *node,
 207                                                   GtkCMCTreeGNodeFunc  func,
 208                                                   gpointer           data);
 209
 210 /***********************************************************
 211  *  Generic recursive functions, querying / finding tree   *
 212  *  information                                            *
 213  ***********************************************************/
 214
 215 void gtk_cmctree_post_recursive                    (GtkCMCTree     *ctree,
 216                                                   GtkCMCTreeNode *node,
 217                                                   GtkCMCTreeFunc  func,
 218                                                   gpointer      data);
 219 void gtk_cmctree_post_recursive_to_depth           (GtkCMCTree     *ctree,
 220                                                   GtkCMCTreeNode *node,
 221                                                   gint          depth,
 222                                                   GtkCMCTreeFunc  func,
 223                                                   gpointer      data);
 224 void gtk_cmctree_pre_recursive                     (GtkCMCTree     *ctree,
 225                                                   GtkCMCTreeNode *node,
 226                                                   GtkCMCTreeFunc  func,
 227                                                   gpointer      data);
 228 void gtk_cmctree_pre_recursive_to_depth            (GtkCMCTree     *ctree,
 229                                                   GtkCMCTreeNode *node,
 230                                                   gint          depth,
 231                                                   GtkCMCTreeFunc  func,
 232                                                   gpointer      data);
 233 gboolean gtk_cmctree_is_viewable                   (GtkCMCTree     *ctree,
 234                                                   GtkCMCTreeNode *node);
 235 GtkCMCTreeNode * gtk_cmctree_last                    (GtkCMCTree     *ctree,
 236                                                   GtkCMCTreeNode *node);
 237 GtkCMCTreeNode * gtk_cmctree_find_node_ptr           (GtkCMCTree     *ctree,
 238                                                   GtkCMCTreeRow  *ctree_row);
 239 GtkCMCTreeNode * gtk_cmctree_node_nth                (GtkCMCTree     *ctree,
 240                                                   guint         row);
 241 gboolean gtk_cmctree_find                          (GtkCMCTree     *ctree,
 242                                                   GtkCMCTreeNode *node,
 243                                                   GtkCMCTreeNode *child);
 244 gboolean gtk_cmctree_is_ancestor                   (GtkCMCTree     *ctree,
 245                                                   GtkCMCTreeNode *node,
 246                                                   GtkCMCTreeNode *child);
 247 GtkCMCTreeNode * gtk_cmctree_find_by_row_data        (GtkCMCTree     *ctree,
 248                                                   GtkCMCTreeNode *node,
 249                                                   gpointer      data);
 250 /* returns a GList of all GtkCMCTreeNodes with row->data == data. */
 251 GList * gtk_cmctree_find_all_by_row_data           (GtkCMCTree     *ctree,
 252                                                   GtkCMCTreeNode *node,
 253                                                   gpointer      data);
 254 GtkCMCTreeNode * gtk_cmctree_find_by_row_data_custom (GtkCMCTree     *ctree,
 255                                                   GtkCMCTreeNode *node,
 256                                                   gpointer      data,
 257                                                   GCompareFunc  func);
 258 /* returns a GList of all GtkCMCTreeNodes with row->data == data. */
 259 GList * gtk_cmctree_find_all_by_row_data_custom    (GtkCMCTree     *ctree,
 260                                                   GtkCMCTreeNode *node,
 261                                                   gpointer      data,
 262                                                   GCompareFunc  func);
 263 gboolean gtk_cmctree_is_hot_spot                   (GtkCMCTree     *ctree,
 264                                                   gint          x,
 265                                                   gint          y);
 266
 267 /***********************************************************
 268  *   Tree signals : move, expand, collapse, (un)select     *
 269  ***********************************************************/
 270
 271 void gtk_cmctree_move                              (GtkCMCTree     *ctree,
 272                                                   GtkCMCTreeNode *node,
 273                                                   GtkCMCTreeNode *new_parent,
 274                                                   GtkCMCTreeNode *new_sibling);
 275 void gtk_cmctree_expand                            (GtkCMCTree     *ctree,
 276                                                   GtkCMCTreeNode *node);
 277 void gtk_cmctree_expand_recursive                  (GtkCMCTree     *ctree,
 278                                                   GtkCMCTreeNode *node);
 279 void gtk_cmctree_expand_to_depth                   (GtkCMCTree     *ctree,
 280                                                   GtkCMCTreeNode *node,
 281                                                   gint          depth);
 282 void gtk_cmctree_collapse                          (GtkCMCTree     *ctree,
 283                                                   GtkCMCTreeNode *node);
 284 void gtk_cmctree_collapse_recursive                (GtkCMCTree     *ctree,
 285                                                   GtkCMCTreeNode *node);
 286 void gtk_cmctree_collapse_to_depth                 (GtkCMCTree     *ctree,
 287                                                   GtkCMCTreeNode *node,
 288                                                   gint          depth);
 289 void gtk_cmctree_toggle_expansion                  (GtkCMCTree     *ctree,
 290                                                   GtkCMCTreeNode *node);
 291 void gtk_cmctree_toggle_expansion_recursive        (GtkCMCTree     *ctree,
 292                                                   GtkCMCTreeNode *node);
 293 void gtk_cmctree_select                            (GtkCMCTree     *ctree,
 294                                                   GtkCMCTreeNode *node);
 295 void gtk_cmctree_select_recursive                  (GtkCMCTree     *ctree,
 296                                                   GtkCMCTreeNode *node);
 297 void gtk_cmctree_unselect                          (GtkCMCTree     *ctree,
 298                                                   GtkCMCTreeNode *node);
 299 void gtk_cmctree_unselect_recursive                (GtkCMCTree     *ctree,
 300                                                   GtkCMCTreeNode *node);
 301 void gtk_cmctree_real_select_recursive             (GtkCMCTree     *ctree,
 302                                                   GtkCMCTreeNode *node,
 303                                                   gint          state);
 304
 305 /***********************************************************
 306  *           Analogons of GtkCMCList functions               *
 307  ***********************************************************/
 308
 309 void gtk_cmctree_node_set_text                     (GtkCMCTree     *ctree,
 310                                                   GtkCMCTreeNode *node,
 311                                                   gint          column,
 312                                                   const gchar  *text);
 313 void gtk_cmctree_node_set_pixbuf                   (GtkCMCTree     *ctree,
 314                                                   GtkCMCTreeNode *node,
 315                                                   gint          column,
 316                                                   GdkPixbuf    *pixbuf);
 317 void gtk_cmctree_node_set_pixtext                  (GtkCMCTree     *ctree,
 318                                                   GtkCMCTreeNode *node,
 319                                                   gint          column,
 320                                                   const gchar  *text,
 321                                                   guint8        spacing,
 322                                                   GdkPixbuf    *pixbuf);
 323 void gtk_cmctree_set_node_info                     (GtkCMCTree     *ctree,
 324                                                   GtkCMCTreeNode *node,
 325                                                   const gchar  *text,
 326                                                   guint8        spacing,
 327                                                   GdkPixbuf    *pixbuf_closed,
 328                                                   GdkPixbuf    *pixbuf_opened,
 329                                                   gboolean      is_leaf,
 330                                                   gboolean      expanded);
 331 void gtk_cmctree_node_set_shift                    (GtkCMCTree     *ctree,
 332                                                   GtkCMCTreeNode *node,
 333                                                   gint          column,
 334                                                   gint          vertical,
 335                                                   gint          horizontal);
 336 void gtk_cmctree_node_set_selectable               (GtkCMCTree     *ctree,
 337                                                   GtkCMCTreeNode *node,
 338                                                   gboolean      selectable);
 339 gboolean gtk_cmctree_node_get_selectable           (GtkCMCTree     *ctree,
 340                                                   GtkCMCTreeNode *node);
 341 GtkCMCellType gtk_cmctree_node_get_cell_type         (GtkCMCTree     *ctree,
 342                                                   GtkCMCTreeNode *node,
 343                                                   gint          column);
 344 gboolean gtk_cmctree_node_get_text                 (GtkCMCTree     *ctree,
 345                                                   GtkCMCTreeNode *node,
 346                                                   gint          column,
 347                                                   gchar       **text);
 348 gboolean gtk_cmctree_node_get_pixbuf               (GtkCMCTree     *ctree,
 349                                                   GtkCMCTreeNode *node,
 350                                                   gint          column,
 351                                                   GdkPixbuf   **pixbuf);
 352 gboolean gtk_cmctree_node_get_pixtext              (GtkCMCTree     *ctree,
 353                                                   GtkCMCTreeNode *node,
 354                                                   gint          column,
 355                                                   gchar       **text,
 356                                                   guint8       *spacing,
 357                                                   GdkPixbuf   **pixbuf);
 358 gboolean gtk_cmctree_get_node_info                 (GtkCMCTree     *ctree,
 359                                                   GtkCMCTreeNode *node,
 360                                                   gchar       **text,
 361                                                   guint8       *spacing,
 362                                                   GdkPixbuf   **pixbuf_closed,
 363                                                   GdkPixbuf   **pixbuf_opened,
 364                                                   gboolean     *is_leaf,
 365                                                   gboolean     *expanded);
 366 void gtk_cmctree_node_set_row_style                (GtkCMCTree     *ctree,
 367                                                   GtkCMCTreeNode *node,
 368                                                   GtkStyle     *style);
 369 GtkStyle * gtk_cmctree_node_get_row_style          (GtkCMCTree     *ctree,
 370                                                   GtkCMCTreeNode *node);
 371 void gtk_cmctree_node_set_cell_style               (GtkCMCTree     *ctree,
 372                                                   GtkCMCTreeNode *node,
 373                                                   gint          column,
 374                                                   GtkStyle     *style);
 375 GtkStyle * gtk_cmctree_node_get_cell_style         (GtkCMCTree     *ctree,
 376                                                   GtkCMCTreeNode *node,
 377                                                   gint          column);
 378 void gtk_cmctree_node_set_foreground               (GtkCMCTree       *ctree,
 379                                                   GtkCMCTreeNode   *node,
 380                                                   const GdkColor *color);
 381 void gtk_cmctree_node_set_background               (GtkCMCTree       *ctree,
 382                                                   GtkCMCTreeNode   *node,
 383                                                   const GdkColor *color);
 384 void gtk_cmctree_node_set_row_data                 (GtkCMCTree     *ctree,
 385                                                   GtkCMCTreeNode *node,
 386                                                   gpointer      data);
 387 void gtk_cmctree_node_set_row_data_full            (GtkCMCTree     *ctree,
 388                                                   GtkCMCTreeNode *node,
 389                                                   gpointer      data,
 390                                                   GDestroyNotify destroy);
 391 gpointer gtk_cmctree_node_get_row_data             (GtkCMCTree     *ctree,
 392                                                   GtkCMCTreeNode *node);
 393 void gtk_cmctree_node_moveto                       (GtkCMCTree     *ctree,
 394                                                   GtkCMCTreeNode *node,
 395                                                   gint          column,
 396                                                   gfloat        row_align,
 397                                                   gfloat        col_align);
 398 GtkVisibility gtk_cmctree_node_is_visible          (GtkCMCTree     *ctree,
 399                                                   GtkCMCTreeNode *node);
 400
 401 /***********************************************************
 402  *             GtkCMCTree specific functions                 *
 403  ***********************************************************/
 404
 405 void gtk_cmctree_set_indent            (GtkCMCTree                *ctree,
 406                                       gint                     indent);
 407 void gtk_cmctree_set_spacing           (GtkCMCTree                *ctree,
 408                                       gint                     spacing);
 409 void gtk_cmctree_set_show_stub         (GtkCMCTree                *ctree,
 410                                       gboolean                 show_stub);
 411 void gtk_cmctree_set_line_style        (GtkCMCTree                *ctree,
 412                                       GtkCMCTreeLineStyle        line_style);
 413 void gtk_cmctree_set_expander_style    (GtkCMCTree                *ctree,
 414                                       GtkCMCTreeExpanderStyle    expander_style);
 415 void gtk_cmctree_set_drag_compare_func (GtkCMCTree            *ctree,
 416                                       GtkCMCTreeCompareDragFunc  cmp_func);
 417
 418 /***********************************************************
 419  *             Tree sorting functions                      *
 420  ***********************************************************/
 421
 422 void gtk_cmctree_sort_node                         (GtkCMCTree     *ctree,
 423                                                   GtkCMCTreeNode *node);
 424 void gtk_cmctree_sort_recursive                    (GtkCMCTree     *ctree,
 425                                                   GtkCMCTreeNode *node);
 426
 427
 428 #define gtk_cmctree_set_reorderable(t,r)                    gtk_cmclist_set_reorderable((GtkCMCList*) (t),(r))
 429
 430 /* GType for the GtkCMCTreeNode.  This is a boxed type, although it uses
 431  * no-op's for the copy and free routines.  It is defined in order to
 432  * provide type information for the signal arguments
 433  */
 434 GType   gtk_cmctree_node_get_type                  (void) G_GNUC_CONST;
 435
 436 G_END_DECLS
 437
 438 #endif                          /* __GTK_CMCTREE_H__ */