/usr/include/gtkmm-2.4/gtkmm/treemodel.h is in libgtkmm-2.4-dev 1:2.24.4-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 | // -*- c++ -*-
// Generated by gtkmmproc -- DO NOT MODIFY!
#ifndef _GTKMM_TREEMODEL_H
#define _GTKMM_TREEMODEL_H
#include <glibmm.h>
/* $Id: treemodel.hg,v 1.25 2006/05/10 20:59:28 murrayc Exp $ */
/* Copyright (C) 1998-2002 The gtkmm Development Team
*
* 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 2.1 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
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <glibmm/interface.h>
#include <gtkmm/treeiter.h>
#ifndef DOXYGEN_SHOULD_SKIP_THIS
typedef struct _GtkTreeModel GtkTreeModel;
typedef struct _GtkTreeModelClass GtkTreeModelClass;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
namespace Gtk
{ class TreeModel_Class; } // namespace Gtk
namespace Gtk
{
class TreeModelSort;
class TreePath;
class TreeRowReference;
/** @addtogroup gtkmmEnums gtkmm Enums and Flags */
/**
* @ingroup gtkmmEnums
* @par Bitwise operators:
* <tt>%TreeModelFlags operator|(TreeModelFlags, TreeModelFlags)</tt><br>
* <tt>%TreeModelFlags operator&(TreeModelFlags, TreeModelFlags)</tt><br>
* <tt>%TreeModelFlags operator^(TreeModelFlags, TreeModelFlags)</tt><br>
* <tt>%TreeModelFlags operator~(TreeModelFlags)</tt><br>
* <tt>%TreeModelFlags& operator|=(TreeModelFlags&, TreeModelFlags)</tt><br>
* <tt>%TreeModelFlags& operator&=(TreeModelFlags&, TreeModelFlags)</tt><br>
* <tt>%TreeModelFlags& operator^=(TreeModelFlags&, TreeModelFlags)</tt><br>
*/
enum TreeModelFlags
{
TREE_MODEL_ITERS_PERSIST = 1 << 0,
TREE_MODEL_LIST_ONLY = 1 << 1
};
/** @ingroup gtkmmEnums */
inline TreeModelFlags operator|(TreeModelFlags lhs, TreeModelFlags rhs)
{ return static_cast<TreeModelFlags>(static_cast<unsigned>(lhs) | static_cast<unsigned>(rhs)); }
/** @ingroup gtkmmEnums */
inline TreeModelFlags operator&(TreeModelFlags lhs, TreeModelFlags rhs)
{ return static_cast<TreeModelFlags>(static_cast<unsigned>(lhs) & static_cast<unsigned>(rhs)); }
/** @ingroup gtkmmEnums */
inline TreeModelFlags operator^(TreeModelFlags lhs, TreeModelFlags rhs)
{ return static_cast<TreeModelFlags>(static_cast<unsigned>(lhs) ^ static_cast<unsigned>(rhs)); }
/** @ingroup gtkmmEnums */
inline TreeModelFlags operator~(TreeModelFlags flags)
{ return static_cast<TreeModelFlags>(~static_cast<unsigned>(flags)); }
/** @ingroup gtkmmEnums */
inline TreeModelFlags& operator|=(TreeModelFlags& lhs, TreeModelFlags rhs)
{ return (lhs = static_cast<TreeModelFlags>(static_cast<unsigned>(lhs) | static_cast<unsigned>(rhs))); }
/** @ingroup gtkmmEnums */
inline TreeModelFlags& operator&=(TreeModelFlags& lhs, TreeModelFlags rhs)
{ return (lhs = static_cast<TreeModelFlags>(static_cast<unsigned>(lhs) & static_cast<unsigned>(rhs))); }
/** @ingroup gtkmmEnums */
inline TreeModelFlags& operator^=(TreeModelFlags& lhs, TreeModelFlags rhs)
{ return (lhs = static_cast<TreeModelFlags>(static_cast<unsigned>(lhs) ^ static_cast<unsigned>(rhs))); }
} // namespace Gtk
#ifndef DOXYGEN_SHOULD_SKIP_THIS
namespace Glib
{
template <>
class Value<Gtk::TreeModelFlags> : public Glib::Value_Flags<Gtk::TreeModelFlags>
{
public:
static GType value_type() G_GNUC_CONST;
};
} // namespace Glib
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
namespace Gtk
{
//TODO: Remove any mention of null arguments from the method documentation, by adding overrides in gtk_docs_override.xml.
/** This class defines a generic tree interface for use by the Gtk::TreeView widget.
* @ingroup TreeView
*
* It is is designed to be usable with any appropriate data structure. The
* programmer just has to implement this interface on their own data type for
* it to be viewable by a Gtk::TreeView widget.
*
* The model is represented as a hierarchical tree of strongly-typed, columned
* data. In other words, the model can be seen as a tree where every node has
* different values depending on which column is being queried. The type of
* data found in a column is determined by TreeModel::Column<> templates.
* The types are homogeneous per column across all nodes. It is important to note that this
* interface only provides a way of examining a model and observing changes.
* The implementation of each individual model decides how and if changes are
* made.
*
* In order to make life simpler for programmers who do not need to write their
* own specialized model, two generic models are provided - the Gtk::TreeStore
* and the Gtk::ListStore. To use these, the developer simply pushes data into
* these models as necessary. These models provide the data structure as well
* as all appropriate tree interfaces. As a result, implementing drag and drop,
* sorting, and storing data is trivial. For the vast majority of trees and
* lists, these two models are sufficient.
*
* Models are accessed on a node/column level of granularity. One can query for
* the value of a model at a certain node and a certain column on that node.
* There are two structures used to reference a particular node in a model.
* They are the @link Gtk::TreePath Path@endlink and the iterator. Most of the interface consists of
* operations on an @link Gtk::TreeIter iterator@endlink.
*
* A @link Gtk::TreePath Gtk::TreeModel::Path@endlink is essentially a potential node. It is a location on a model that may
* or may not actually correspond to a node on a specific model.
*
* By contrast, an @link Gtk::TreeIter Gtk::TreeModel::iterator@endlink is a reference to a specific node on a specific
* model. One can convert a path to an @link Gtk::TreeIter iterator@endlink by calling Gtk::TreeModel::get_iter().
* These iterators are the primary way of accessing a model and are similar to the iterators
* used by Gtk::TextBuffer. The model interface defines a set of operations
* using them for navigating the model.
*
* The @link Gtk::TreeRowReference RowReference@endlink is also useful, because it remains
* valid as long as there is an existing row pointed to by it's path. You can convert between RowReferences and iterators and @link Gtk::TreePath Path@endlink s.
*/
class TreeModel : public Glib::Interface
{
#ifndef DOXYGEN_SHOULD_SKIP_THIS
public:
typedef TreeModel CppObjectType;
typedef TreeModel_Class CppClassType;
typedef GtkTreeModel BaseObjectType;
typedef GtkTreeModelIface BaseClassType;
private:
friend class TreeModel_Class;
static CppClassType treemodel_class_;
// noncopyable
TreeModel(const TreeModel&);
TreeModel& operator=(const TreeModel&);
protected:
TreeModel(); // you must derive from this class
/** Called by constructors of derived classes. Provide the result of
* the Class init() function to ensure that it is properly
* initialized.
*
* @param interface_class The Class object for the derived type.
*/
explicit TreeModel(const Glib::Interface_Class& interface_class);
public:
// This is public so that C++ wrapper instances can be
// created for C instances of unwrapped types.
// For instance, if an unexpected C type implements the C interface.
explicit TreeModel(GtkTreeModel* castitem);
protected:
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
public:
virtual ~TreeModel();
static void add_interface(GType gtype_implementer);
#ifndef DOXYGEN_SHOULD_SKIP_THIS
static GType get_type() G_GNUC_CONST;
static GType get_base_type() G_GNUC_CONST;
#endif
///Provides access to the underlying C GObject.
GtkTreeModel* gobj() { return reinterpret_cast<GtkTreeModel*>(gobject_); }
///Provides access to the underlying C GObject.
const GtkTreeModel* gobj() const { return reinterpret_cast<GtkTreeModel*>(gobject_); }
private:
public:
typedef TreeModelColumnRecord ColumnRecord;
typedef TreeNodeChildren Children;
typedef Children::iterator iterator;
typedef Children::reverse_iterator reverse_iterator;
typedef Children::const_iterator const_iterator;
typedef Children::const_reverse_iterator const_reverse_iterator;
typedef TreeRow Row;
typedef TreePath Path;
typedef TreeRowReference RowReference;
//These are part of GtkTreeModelFilter or GtkTreeModelSort, not GtkTreeModel:
/** Returns a valid iterator pointing to @a path.
*
* @param path The @link Gtk::TreePath Gtk::TreeModel::Path@endlink.
* @result A valid iterator pointing to the path, or an invalid iterator if that is not possible.
*/
iterator get_iter(const Path& path);
//TODO: Add const_iterator get_iter(const Path& path) const;
//Implement a const_iterator?
/** Returns a valid iterator pointing to @a path_string.
*
* @param path_string The path, as a string representation.
* @result A valid iterator pointing to the path, or an invalid iterator if that is not possible.
*/
iterator get_iter(const Glib::ustring& path_string);
//TODO: Implement a const_iterator? const_iterator get_iter(const Glib::ustring& path_string) const;
///This returns an STL-like container API, for iterating over the rows.
Children children();
//TODO: Return a real TreeNodeChildren (a container of const_iterators), when we have a real const_iterator.
///This returns an STL-like container API, for iterating over the rows.
Children children() const;
/** For example,
* void on_foreach(const Gtk::TreeModel::iterator& iter);
*
* If the callback function returns true, then the tree ceases to be walked, and foreach() returns.
*/
typedef sigc::slot<bool, const TreeModel::iterator&> SlotForeachIter;
/** Calls a callback slot on each node in the model in a depth-first fashion.
* If the callback function returns true, then the tree ceases to be walked, and foreach() returns.
*
* @param slot The function to call for each selected node.
*/
void foreach_iter(const SlotForeachIter& slot);
/** For example,
* void on_foreach(const Gtk::TreeModel::Path& path);
*
* If the callback function returns true, then the tree ceases to be walked, and foreach() returns.
*/
typedef sigc::slot<bool, const TreeModel::Path&> SlotForeachPath;
/** Calls a callback slot on each node in the model in a depth-first fashion.
* If the callback function returns true, then the tree ceases to be walked, and foreach() returns.
*
* @param slot The function to call for each selected node.
*/
void foreach_path(const SlotForeachPath& slot);
/** For example,
* void on_foreach(const Gtk::TreeModel::Path& path, const Gtk::TreeModel::iterator& iter);
*
* If the callback function returns true, then the tree ceases to be walked, and foreach() returns.
*/
typedef sigc::slot<bool, const TreeModel::Path&, const TreeModel::iterator&> SlotForeachPathAndIter;
/** Calls a callback slot on each node in the model in a depth-first fashion.
* If the callback function returns true, then the tree ceases to be walked, and foreach() returns.
*
* @param slot The function to call for each selected node.
*/
void foreach(const SlotForeachPathAndIter& slot);
/** Returns a set of flags supported by this interface. The flags are a bitwise
* combination of Gtk::TreeModelFlags. The flags supported should not change
* during the lifecycle of the @a tree_model.
* @return The flags supported by this interface.
*/
TreeModelFlags get_flags() const;
/** Returns the number of columns supported by @a tree_model.
* @return The number of columns.
*/
int get_n_columns() const;
/** Returns the type of the column.
* @param index The column index.
* @return The type of the column.
*/
GType get_column_type(int index) const;
//TODO: A C++-type version of get_column_type()?
/** Returns a Gtk::TreePath referenced by @a iter.
* @param iter The Gtk::TreeIter.
* @return A Gtk::TreePath.
*/
TreeModel::Path get_path(const iterator& iter) const;
/** Emits the "row-changed" signal on @a tree_model.
* @param path A Gtk::TreePath pointing to the changed row.
* @param iter A valid Gtk::TreeIter pointing to the changed row.
*/
void row_changed(const Path& path, const iterator& iter);
/** Emits the "row-inserted" signal on @a tree_model
* @param path A Gtk::TreePath pointing to the inserted row.
* @param iter A valid Gtk::TreeIter pointing to the inserted row.
*/
void row_inserted(const Path& path, const iterator& iter);
/** Emits the "row-has-child-toggled" signal on @a tree_model. This should be
* called by models after the child state of a node changes.
* @param path A Gtk::TreePath pointing to the changed row.
* @param iter A valid Gtk::TreeIter pointing to the changed row.
*/
void row_has_child_toggled(const Path& path, const iterator& iter);
/** Emits the "row-deleted" signal on @a tree_model. This should be called by
* models after a row has been removed. The location pointed to by @a path
* should be the location that the row previously was at. It may not be a
* valid location anymore.
* @param path A Gtk::TreePath pointing to the previous location of the deleted row.
*/
void row_deleted(const Path& path);
/** Emits the "rows_reordered" signal on the tree model. This should be called by
* custom models when their rows have been reordered.
*
* @param path A tree path pointing to the tree node whose children have been reordered.
* @param iter A valid iterator pointing to the node whose children have been reordered. See also, rows_reordered(const Path& path, const Glib::ArrayHandle<int>& new_order), if the path has a depth of 0.
* @param new_order An array of integers mapping the current position of each child
* to its old position before the re-ordering, i.e. @a new_order<literal>[newpos] = oldpos.
*/
void rows_reordered(const Path& path, const iterator& iter, const Glib::ArrayHandle<int>& new_order);
/** Emits the "rows_reordered" signal on the tree model. This should be called by
* custom models when their rows have been reordered. This method overload is for nodes whose
* path has a depth of 0.
* @newin{2,10}
*
* @param path A tree path pointing to the tree node whose children have been reordered.
* @param new_order An array of integers mapping the current position of each child
* to its old position before the re-ordering, i.e. @a new_order<literal>[newpos] = oldpos.
*/
void rows_reordered(const Path& path, const Glib::ArrayHandle<int>& new_order);
/** Emits the "rows-reordered" signal on @a tree_model. This should be called by
* models when their rows have been reordered.
* @param path A Gtk::TreePath pointing to the tree node whose children have been
* reordered.
* @param iter A valid Gtk::TreeIter pointing to the node whose children have been
* reordered, or <tt>0</tt> if the depth of @a path is 0.
* @param new_order An array of integers mapping the current position of each child
* to its old position before the re-ordering,
* i.e. @a new_order<tt>[newpos] = oldpos</tt>.
*/
void rows_reordered(const Path& path, const iterator& iter, int* new_order);
/** Generates a string representation of the iter. This string is a ':'
* separated list of numbers. For example, "4:10:0:3" would be an
* acceptable return value for this string.
*
* @newin{2,2}
* @param iter An Gtk::TreeIter.
* @return The string.
*/
Glib::ustring get_string(const iterator& iter) const;
/**
* @par Prototype:
* <tt>void on_my_%row_changed(const TreeModel::Path& path, const TreeModel::iterator& iter)</tt>
*/
Glib::SignalProxy2< void,const TreeModel::Path&,const TreeModel::iterator& > signal_row_changed();
/**
* @par Prototype:
* <tt>void on_my_%row_inserted(const TreeModel::Path& path, const TreeModel::iterator& iter)</tt>
*/
Glib::SignalProxy2< void,const TreeModel::Path&,const TreeModel::iterator& > signal_row_inserted();
/**
* @par Prototype:
* <tt>void on_my_%row_has_child_toggled(const TreeModel::Path& path, const TreeModel::iterator& iter)</tt>
*/
Glib::SignalProxy2< void,const TreeModel::Path&,const TreeModel::iterator& > signal_row_has_child_toggled();
/**
* @par Prototype:
* <tt>void on_my_%row_deleted(const TreeModel::Path& path)</tt>
*/
Glib::SignalProxy1< void,const TreeModel::Path& > signal_row_deleted();
/**
* @par Prototype:
* <tt>void on_my_%rows_reordered(const TreeModel::Path& path, const TreeModel::iterator& iter, int* new_order)</tt>
*/
Glib::SignalProxy3< void,const TreeModel::Path&,const TreeModel::iterator&,int* > signal_rows_reordered();
protected:
virtual TreeModelFlags get_flags_vfunc() const;
virtual int get_n_columns_vfunc() const;
virtual GType get_column_type_vfunc(int index) const;
//These are only for deriving new TreeModels, which isn't very common or easy:
/** Override and implement this in a derived TreeModel class.
* Sets @a iter_next to refer to the node following @a iter it at the current level.
* If there is no next iter, false is returned and iter_next is set to be invalid.
*
* @param iter An iterator.
* @param iter_next An iterator that will be set to refer to the next node, or will be set as invalid.
* @result true if the operation was possible.
*/
virtual bool iter_next_vfunc(const iterator& iter, iterator& iter_next) const;
/** Override and implement this in a derived TreeModel class.
* Sets @a iter to a valid iterator pointing to @a path
*
* @param path An path to a node.
* @param iter An iterator that will be set to refer to a node to the path, or will be set as invalid.
* @result true if the operation was possible.
*/
virtual bool get_iter_vfunc(const Path& path, iterator& iter) const;
/** Override and implement this in a derived TreeModel class.
* Sets @a iter to refer to the first child of @a parent. If @a parent has no children,
* false is returned and @a iter is set to be invalid.
*
* @param parent An iterator.
* @param iter An iterator that will be set to refer to the firt child node, or will be set as invalid.
* @result true if the operation was possible.
*/
virtual bool iter_children_vfunc(const iterator& parent, iterator& iter) const;
/** Override and implement this in a derived TreeModel class.
* Sets @a iter to be the parent of @a child. If @a child is at the toplevel, and
* doesn't have a parent, then @a iter is set to an invalid iterator and false
* is returned.
*
* @param child An iterator.
* @param iter An iterator that will be set to refer to the parent node, or will be set as invalid.
* @result true if the operation was possible.
*/
virtual bool iter_parent_vfunc(const iterator& child, iterator& iter) const;
/** Override and implement this in a derived TreeModel class.
* Sets @a iter to be the child of @a parent using the given index. The first
* index is 0. If @a n is too big, or @a parent has no children, @a iter is set
* to an invalid iterator and false is returned.
* See also iter_nth_root_child_vfunc()
*
* @param parent An iterator.
* @param n The index of the child node to which @a iter should be set.
* @param iter An iterator that will be set to refer to the nth node, or will be set as invalid.
* @result true if the operation was possible.
*/
virtual bool iter_nth_child_vfunc(const iterator& parent, int n, iterator& iter) const;
/** Override and implement this in a derived TreeModel class.
* Sets @a iter to be the child of at the root level using the given index. The first
* index is 0. If @a n is too big, or if there are no children, @a iter is set
* to an invalid iterator and false is returned.
* See also iter_nth_child_vfunc().
*
* @param n The index of the child node to which @a iter should be set.
* @param iter An iterator that will be set to refer to the nth node, or will be set as invalid.
* @result true if the operation was possible.
*/
virtual bool iter_nth_root_child_vfunc(int n, iterator& iter) const;
/** Override and implement this in a derived TreeModel class.
* Returns true if @a iter has children, false otherwise.
*
* @param iter The iterator to test for children.
* @result true if @a iter has children.
*/
virtual bool iter_has_child_vfunc(const iterator& iter) const;
/** Override and implement this in a derived TreeModel class.
* Returns the number of children that @a iter has.
* See also iter_n_root_children_vfunc().
*
* @param iter The iterator to test for children.
* @result The number of children of @a iter.
*/
virtual int iter_n_children_vfunc(const iterator& iter) const;
/** Override and implement this in a derived TreeModel class.
* Returns the number of toplevel nodes.
* See also iter_n_children().
*
* @result The number of children at the root level.
*/
virtual int iter_n_root_children_vfunc() const;
/** Override and implement this in a derived TreeModel class.
* Lets the tree ref the node. This is an optional method for models to
* implement. To be more specific, models may ignore this call as it exists
* primarily for performance reasons.
*
* This function is primarily meant as a way for views to let caching model know
* when nodes are being displayed (and hence, whether or not to cache that
* node.) For example, a file-system based model would not want to keep the
* entire file-hierarchy in memory, just the sections that are currently being
* displayed by every current view.
*
* A model should be expected to be able to get an iter independent of its
* reffed state.
*
* @param iter the iterator.
*/
virtual void ref_node_vfunc(const iterator& iter) const;
/** Override and implement this in a derived TreeModel class.
* Lets the tree unref the node. This is an optional method for models to
* implement. To be more specific, models may ignore this call as it exists
* primarily for performance reasons.
*
* For more information on what this means, see unref_node_vfunc().
* Please note that nodes that are deleted are not unreffed.
*
* @param iter the iterator.
*/
virtual void unref_node_vfunc(const iterator& iter) const;
/** Override and implement this in a derived TreeModel class.
* Returns a Path referenced by @a iter.
*
* @param iter The iterator.
* @result The path.
*/
virtual TreeModel::Path get_path_vfunc(const iterator& iter) const;
/** Override and implement this in a derived TreeModel class.
* Initializes and sets @a value to that at @a column.
*
* @param iter The iterator.
* @param column The column to lookup the value at.
* @param value An empty Glib:Value to set.
*/
virtual void get_value_vfunc(const iterator& iter, int column, Glib::ValueBase& value) const;
//We don't put an deprecation ifdef around this because it would break ABI.
/** Override and implement this in a derived TreeModel class.
* @note This virtual method is not recommended. To check
* whether an iterator is valid, call TreeStore::iter_is_valid(),
* ListStore::iter_is_valid() or TreeModelSort::iter_is_valid() directly
* instead. Because these methods are intended to be used only for debugging
* and/or testing purposes, it doesn't make sense to provide an abstract
* interface to them.
*
* @result true if the iterator is valid.
*
* @deprecated Use iter_is_valid() in the derived class.
*/
virtual bool iter_is_valid(const iterator& iter) const;
//Called by TreeRow, which is a friend class:
//The comment about set_row_changed() in the documentation is based on my reading of the source of
//gtk_list_store_set_value() and gtk_tree_store_set_value().
/** Override and implement this in a derived TreeModel class, so that Row::operator() and
* Row::set_value() work.
* You can probably just implement this by calling set_value_vfunc().
* Your implementation of set_value_impl() should also call row_changed() after changing the value.
*/
virtual void set_value_impl(const iterator& row, int column, const Glib::ValueBase& value);
//This might not need to be virtual, but it's not a big deal. murrayc.
virtual void get_value_impl(const iterator& row, int column, Glib::ValueBase& value) const;
friend class Gtk::TreeModelSort;
friend class Gtk::TreeRow;
friend class Gtk::TreeIter;
public:
public:
//C++ methods used to invoke GTK+ virtual functions:
protected:
//GTK+ Virtual Functions (override these to change behaviour):
//Default Signal Handlers::
virtual void on_row_changed(const TreeModel::Path& path, const TreeModel::iterator& iter);
virtual void on_row_inserted(const TreeModel::Path& path, const TreeModel::iterator& iter);
virtual void on_row_has_child_toggled(const TreeModel::Path& path, const TreeModel::iterator& iter);
virtual void on_row_deleted(const TreeModel::Path& path);
virtual void on_rows_reordered(const TreeModel::Path& path, const TreeModel::iterator& iter, int* new_order);
};
} // namespace Gtk
namespace Glib
{
/** A Glib::wrap() method for this object.
*
* @param object The C instance.
* @param take_copy False if the result should take ownership of the C instance. True if it should take a new copy or ref.
* @result A C++ instance that wraps this C instance.
*
* @relates Gtk::TreeModel
*/
Glib::RefPtr<Gtk::TreeModel> wrap(GtkTreeModel* object, bool take_copy = false);
} // namespace Glib
#endif /* _GTKMM_TREEMODEL_H */
|