gtk2/gtk/gtktreemodel.c

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/* gtktreemodel.c
* Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <glib/gprintf.h>
#include <gobject/gvaluecollector.h>
#include "gtktreemodel.h"
#include "gtktreeview.h"
#include "gtktreeprivate.h"
#include "gtkmarshalers.h"
#include "gtkintl.h"
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/**
* SECTION:gtktreemodel
* @Title: GtkTreeModel
* @Short_description: The tree interface used by GtkTreeView
* @See_also: #GtkTreeView, #GtkTreeStore, #GtkListStore,
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* [GtkTreeView drag-and-drop][gtk3-GtkTreeView-drag-and-drop]
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* #GtkTreeSortable
*
* The #GtkTreeModel interface defines a generic tree interface for
* use by the #GtkTreeView widget. It is an abstract interface, and
* 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 #GtkTreeView 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 using
* the GType system (ie. #G_TYPE_INT, #GTK_TYPE_BUTTON, #G_TYPE_POINTER,
* etc). 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 #GtkTreeStore and the #GtkListStore. To use these, the
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* 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
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* column on that node. There are two structures used to reference a
* particular node in a model. They are the #GtkTreePath-struct and
* the #GtkTreeIter-struct (iter is short for iterator). Most of the
* interface consists of operations on a #GtkTreeIter-struct.
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*
* A path 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. The #GtkTreePath-struct can be converted into either an
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* array of unsigned integers or a string. The string form is a list
* of numbers separated by a colon. Each number refers to the offset
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* at that level. Thus, the path `0` refers to the root
* node and the path `2:4` refers to the fifth child of
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* the third node.
*
* By contrast, a #GtkTreeIter-struct is a reference to a specific node on
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* a specific model. It is a generic struct with an integer and three
* generic pointers. These are filled in by the model in a model-specific
* way. One can convert a path to an iterator by calling
* gtk_tree_model_get_iter(). These iterators are the primary way
* of accessing a model and are similar to the iterators used by
* #GtkTextBuffer. They are generally statically allocated on the
* stack and only used for a short time. The model interface defines
* a set of operations using them for navigating the model.
*
* It is expected that models fill in the iterator with private data.
* For example, the #GtkListStore model, which is internally a simple
* linked list, stores a list node in one of the pointers. The
* #GtkTreeModelSort stores an array and an offset in two of the
* pointers. Additionally, there is an integer field. This field is
* generally filled with a unique stamp per model. This stamp is for
* catching errors resulting from using invalid iterators with a model.
*
* The lifecycle of an iterator can be a little confusing at first.
* Iterators are expected to always be valid for as long as the model
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* is unchanged (and doesnt emit a signal). The model is considered
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* to own all outstanding iterators and nothing needs to be done to
* free them from the users point of view. Additionally, some models
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* guarantee that an iterator is valid for as long as the node it refers
* to is valid (most notably the #GtkTreeStore and #GtkListStore).
* Although generally uninteresting, as one always has to allow for
* the case where iterators do not persist beyond a signal, some very
* important performance enhancements were made in the sort model.
* As a result, the #GTK_TREE_MODEL_ITERS_PERSIST flag was added to
* indicate this behavior.
*
* To help show some common operation of a model, some examples are
* provided. The first example shows three ways of getting the iter at
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* the location `3:2:5`. While the first method shown is
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* easier, the second is much more common, as you often get paths from
* callbacks.
*
* ## Acquiring a #GtkTreeIter-struct
*
* |[<!-- language="C" -->
* // Three ways of getting the iter pointing to the location
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* GtkTreePath *path;
* GtkTreeIter iter;
* GtkTreeIter parent_iter;
*
* // get the iterator from a string
* gtk_tree_model_get_iter_from_string (model,
* &iter,
* "3:2:5");
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*
* // get the iterator from a path
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* path = gtk_tree_path_new_from_string ("3:2:5");
* gtk_tree_model_get_iter (model, &iter, path);
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* gtk_tree_path_free (path);
*
* // walk the tree to find the iterator
* gtk_tree_model_iter_nth_child (model, &iter,
* NULL, 3);
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* parent_iter = iter;
* gtk_tree_model_iter_nth_child (model, &iter,
* &parent_iter, 2);
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* parent_iter = iter;
* gtk_tree_model_iter_nth_child (model, &iter,
* &parent_iter, 5);
* ]|
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*
* This second example shows a quick way of iterating through a list
* and getting a string and an integer from each row. The
* populate_model() function used below is not
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* shown, as it is specific to the #GtkListStore. For information on
* how to write such a function, see the #GtkListStore documentation.
*
* ## Reading data from a #GtkTreeModel
*
* |[<!-- language="C" -->
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* enum
* {
* STRING_COLUMN,
* INT_COLUMN,
* N_COLUMNS
* };
*
* ...
*
* GtkTreeModel *list_store;
* GtkTreeIter iter;
* gboolean valid;
* gint row_count = 0;
*
* // make a new list_store
* list_store = gtk_list_store_new (N_COLUMNS,
* G_TYPE_STRING,
* G_TYPE_INT);
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*
* // Fill the list store with data
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* populate_model (list_store);
*
* // Get the first iter in the list, check it is valid and walk
* // through the list, reading each row.
*
* valid = gtk_tree_model_get_iter_first (list_store,
* &iter);
* while (valid)
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* {
* gchar *str_data;
* gint int_data;
*
* // Make sure you terminate calls to gtk_tree_model_get() with a “-1” value
* gtk_tree_model_get (list_store, &iter,
* STRING_COLUMN, &str_data,
* INT_COLUMN, &int_data,
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* -1);
*
* // Do something with the data
* g_print ("Row %d: (%s,%d)\n",
* row_count, str_data, int_data);
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* g_free (str_data);
*
* valid = gtk_tree_model_iter_next (list_store,
* &iter);
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* row_count++;
* }
* ]|
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*
* The #GtkTreeModel interface contains two methods for reference
* counting: gtk_tree_model_ref_node() and gtk_tree_model_unref_node().
* These two methods are optional to implement. The reference counting
* is meant as a way for views to let models know when nodes are being
* displayed. #GtkTreeView will take a reference on a node when it is
* visible, which means the node is either in the toplevel or expanded.
* Being displayed does not mean that the node is currently directly
* visible to the user in the viewport. Based on this reference counting
* scheme a caching model, for example, can decide whether or not to cache
* a node based on the reference count. A file-system based model would
* not want to keep the entire file hierarchy in memory, but just the
* folders that are currently expanded in every current view.
*
* When working with reference counting, the following rules must be taken
* into account:
*
* - Never take a reference on a node without owning a reference on its parent.
* This means that all parent nodes of a referenced node must be referenced
* as well.
*
* - Outstanding references on a deleted node are not released. This is not
* possible because the node has already been deleted by the time the
* row-deleted signal is received.
*
* - Models are not obligated to emit a signal on rows of which none of its
* siblings are referenced. To phrase this differently, signals are only
* required for levels in which nodes are referenced. For the root level
* however, signals must be emitted at all times (however the root level
* is always referenced when any view is attached).
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*/
#define INITIALIZE_TREE_ITER(Iter) \
G_STMT_START{ \
(Iter)->stamp = 0; \
(Iter)->user_data = NULL; \
(Iter)->user_data2 = NULL; \
(Iter)->user_data3 = NULL; \
}G_STMT_END
#define ROW_REF_DATA_STRING "gtk-tree-row-refs"
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enum {
ROW_CHANGED,
ROW_INSERTED,
ROW_HAS_CHILD_TOGGLED,
ROW_DELETED,
ROWS_REORDERED,
LAST_SIGNAL
};
static guint tree_model_signals[LAST_SIGNAL] = { 0 };
struct _GtkTreePath
{
gint depth; /* Number of elements */
gint alloc; /* Number of allocated elements */
gint *indices;
};
typedef struct
{
GSList *list;
} RowRefList;
static void gtk_tree_model_base_init (gpointer g_class);
/* custom closures */
static void row_inserted_marshal (GClosure *closure,
GValue /* out */ *return_value,
guint n_param_value,
const GValue *param_values,
gpointer invocation_hint,
gpointer marshal_data);
static void row_deleted_marshal (GClosure *closure,
GValue /* out */ *return_value,
guint n_param_value,
const GValue *param_values,
gpointer invocation_hint,
gpointer marshal_data);
static void rows_reordered_marshal (GClosure *closure,
GValue /* out */ *return_value,
guint n_param_value,
const GValue *param_values,
gpointer invocation_hint,
gpointer marshal_data);
static void gtk_tree_row_ref_inserted (RowRefList *refs,
GtkTreePath *path,
GtkTreeIter *iter);
static void gtk_tree_row_ref_deleted (RowRefList *refs,
GtkTreePath *path);
static void gtk_tree_row_ref_reordered (RowRefList *refs,
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order);
GType
gtk_tree_model_get_type (void)
{
static GType tree_model_type = 0;
if (! tree_model_type)
{
const GTypeInfo tree_model_info =
{
sizeof (GtkTreeModelIface), /* class_size */
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gtk_tree_model_base_init, /* base_init */
NULL, /* base_finalize */
NULL,
NULL, /* class_finalize */
NULL, /* class_data */
0,
0, /* n_preallocs */
NULL
};
tree_model_type =
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g_type_register_static (G_TYPE_INTERFACE, I_("GtkTreeModel"),
&tree_model_info, 0);
g_type_interface_add_prerequisite (tree_model_type, G_TYPE_OBJECT);
}
return tree_model_type;
}
static void
gtk_tree_model_base_init (gpointer g_class)
{
static gboolean initialized = FALSE;
GClosure *closure;
if (! initialized)
{
GType row_inserted_params[2];
GType row_deleted_params[1];
GType rows_reordered_params[3];
row_inserted_params[0] = GTK_TYPE_TREE_PATH | G_SIGNAL_TYPE_STATIC_SCOPE;
row_inserted_params[1] = GTK_TYPE_TREE_ITER;
row_deleted_params[0] = GTK_TYPE_TREE_PATH | G_SIGNAL_TYPE_STATIC_SCOPE;
rows_reordered_params[0] = GTK_TYPE_TREE_PATH | G_SIGNAL_TYPE_STATIC_SCOPE;
rows_reordered_params[1] = GTK_TYPE_TREE_ITER;
rows_reordered_params[2] = G_TYPE_POINTER;
/**
* GtkTreeModel::row-changed:
* @tree_model: the #GtkTreeModel on which the signal is emitted
* @path: a #GtkTreePath-struct identifying the changed row
* @iter: a valid #GtkTreeIter-struct pointing to the changed row
*
* This signal is emitted when a row in the model has changed.
*/
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tree_model_signals[ROW_CHANGED] =
g_signal_new (I_("row-changed"),
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GTK_TYPE_TREE_MODEL,
G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GtkTreeModelIface, row_changed),
NULL, NULL,
_gtk_marshal_VOID__BOXED_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_PATH | G_SIGNAL_TYPE_STATIC_SCOPE,
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GTK_TYPE_TREE_ITER);
g_signal_set_va_marshaller (tree_model_signals[ROW_CHANGED],
G_TYPE_FROM_CLASS (g_class),
_gtk_marshal_VOID__BOXED_BOXEDv);
/* We need to get notification about structure changes
* to update row references., so instead of using the
* standard g_signal_new() with an offset into our interface
* structure, we use a customs closures for the class
* closures (default handlers) that first update row references
* and then calls the function from the interface structure.
*
* The reason we don't simply update the row references from
* the wrapper functions (gtk_tree_model_row_inserted(), etc.)
* is to keep proper ordering with respect to signal handlers
* connected normally and after.
*/
/**
* GtkTreeModel::row-inserted:
* @tree_model: the #GtkTreeModel on which the signal is emitted
* @path: a #GtkTreePath-struct identifying the new row
* @iter: a valid #GtkTreeIter-struct pointing to the new row
*
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* This signal is emitted when a new row has been inserted in
* the model.
*
* Note that the row may still be empty at this point, since
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* it is a common pattern to first insert an empty row, and
* then fill it with the desired values.
*/
closure = g_closure_new_simple (sizeof (GClosure), NULL);
g_closure_set_marshal (closure, row_inserted_marshal);
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tree_model_signals[ROW_INSERTED] =
g_signal_newv (I_("row-inserted"),
GTK_TYPE_TREE_MODEL,
G_SIGNAL_RUN_FIRST,
closure,
NULL, NULL,
_gtk_marshal_VOID__BOXED_BOXED,
G_TYPE_NONE, 2,
row_inserted_params);
g_signal_set_va_marshaller (tree_model_signals[ROW_INSERTED],
G_TYPE_FROM_CLASS (g_class),
_gtk_marshal_VOID__BOXED_BOXEDv);
/**
* GtkTreeModel::row-has-child-toggled:
* @tree_model: the #GtkTreeModel on which the signal is emitted
* @path: a #GtkTreePath-struct identifying the row
* @iter: a valid #GtkTreeIter-struct pointing to the row
*
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* This signal is emitted when a row has gotten the first child
* row or lost its last child row.
*/
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tree_model_signals[ROW_HAS_CHILD_TOGGLED] =
g_signal_new (I_("row-has-child-toggled"),
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GTK_TYPE_TREE_MODEL,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeModelIface, row_has_child_toggled),
NULL, NULL,
_gtk_marshal_VOID__BOXED_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_PATH | G_SIGNAL_TYPE_STATIC_SCOPE,
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GTK_TYPE_TREE_ITER);
g_signal_set_va_marshaller (tree_model_signals[ROW_HAS_CHILD_TOGGLED],
G_TYPE_FROM_CLASS (g_class),
_gtk_marshal_VOID__BOXED_BOXEDv);
/**
* GtkTreeModel::row-deleted:
* @tree_model: the #GtkTreeModel on which the signal is emitted
* @path: a #GtkTreePath-struct identifying the row
*
* This signal is emitted when a row has been deleted.
*
* Note that no iterator is passed to the signal handler,
* since the row is already deleted.
*
* This should be called by models after a row has been removed.
* The location pointed to by @path should be the location that
* the row previously was at. It may not be a valid location anymore.
*/
closure = g_closure_new_simple (sizeof (GClosure), NULL);
g_closure_set_marshal (closure, row_deleted_marshal);
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tree_model_signals[ROW_DELETED] =
g_signal_newv (I_("row-deleted"),
GTK_TYPE_TREE_MODEL,
G_SIGNAL_RUN_FIRST,
closure,
NULL, NULL,
NULL,
G_TYPE_NONE, 1,
row_deleted_params);
/**
* GtkTreeModel::rows-reordered: (skip)
* @tree_model: the #GtkTreeModel on which the signal is emitted
* @path: a #GtkTreePath-struct identifying the tree node whose children
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* have been reordered
* @iter: a valid #GtkTreeIter-struct pointing to the node whose children
* have been reordered, or %NULL if the depth of @path is 0
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* @new_order: an array of integers mapping the current position
* of each child to its old position before the re-ordering,
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* i.e. @new_order`[newpos] = oldpos`
*
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* This signal is emitted when the children of a node in the
* #GtkTreeModel have been reordered.
*
* Note that this signal is not emitted
* when rows are reordered by DND, since this is implemented
* by removing and then reinserting the row.
*/
closure = g_closure_new_simple (sizeof (GClosure), NULL);
g_closure_set_marshal (closure, rows_reordered_marshal);
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tree_model_signals[ROWS_REORDERED] =
g_signal_newv (I_("rows-reordered"),
GTK_TYPE_TREE_MODEL,
G_SIGNAL_RUN_FIRST,
closure,
NULL, NULL,
_gtk_marshal_VOID__BOXED_BOXED_POINTER,
G_TYPE_NONE, 3,
rows_reordered_params);
g_signal_set_va_marshaller (tree_model_signals[ROWS_REORDERED],
G_TYPE_FROM_CLASS (g_class),
_gtk_marshal_VOID__BOXED_BOXED_POINTERv);
initialized = TRUE;
}
}
static void
row_inserted_marshal (GClosure *closure,
GValue /* out */ *return_value,
guint n_param_values,
const GValue *param_values,
gpointer invocation_hint,
gpointer marshal_data)
{
GtkTreeModelIface *iface;
void (* row_inserted_callback) (GtkTreeModel *tree_model,
GtkTreePath *path,
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GtkTreeIter *iter) = NULL;
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GObject *model = g_value_get_object (param_values + 0);
GtkTreePath *path = (GtkTreePath *)g_value_get_boxed (param_values + 1);
GtkTreeIter *iter = (GtkTreeIter *)g_value_get_boxed (param_values + 2);
/* first, we need to update internal row references */
gtk_tree_row_ref_inserted ((RowRefList *)g_object_get_data (model, ROW_REF_DATA_STRING),
path, iter);
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/* fetch the interface ->row_inserted implementation */
iface = GTK_TREE_MODEL_GET_IFACE (model);
row_inserted_callback = G_STRUCT_MEMBER (gpointer, iface,
G_STRUCT_OFFSET (GtkTreeModelIface,
row_inserted));
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/* Call that default signal handler, it if has been set */
if (row_inserted_callback)
row_inserted_callback (GTK_TREE_MODEL (model), path, iter);
}
static void
row_deleted_marshal (GClosure *closure,
GValue /* out */ *return_value,
guint n_param_values,
const GValue *param_values,
gpointer invocation_hint,
gpointer marshal_data)
{
GtkTreeModelIface *iface;
void (* row_deleted_callback) (GtkTreeModel *tree_model,
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GtkTreePath *path) = NULL;
GObject *model = g_value_get_object (param_values + 0);
GtkTreePath *path = (GtkTreePath *)g_value_get_boxed (param_values + 1);
/* first, we need to update internal row references */
gtk_tree_row_ref_deleted ((RowRefList *)g_object_get_data (model, ROW_REF_DATA_STRING),
path);
/* fetch the interface ->row_deleted implementation */
iface = GTK_TREE_MODEL_GET_IFACE (model);
row_deleted_callback = G_STRUCT_MEMBER (gpointer, iface,
G_STRUCT_OFFSET (GtkTreeModelIface,
row_deleted));
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/* Call that default signal handler, it if has been set */
if (row_deleted_callback)
row_deleted_callback (GTK_TREE_MODEL (model), path);
}
static void
rows_reordered_marshal (GClosure *closure,
GValue /* out */ *return_value,
guint n_param_values,
const GValue *param_values,
gpointer invocation_hint,
gpointer marshal_data)
{
GtkTreeModelIface *iface;
void (* rows_reordered_callback) (GtkTreeModel *tree_model,
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order);
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GObject *model = g_value_get_object (param_values + 0);
GtkTreePath *path = (GtkTreePath *)g_value_get_boxed (param_values + 1);
GtkTreeIter *iter = (GtkTreeIter *)g_value_get_boxed (param_values + 2);
gint *new_order = (gint *)g_value_get_pointer (param_values + 3);
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/* first, we need to update internal row references */
gtk_tree_row_ref_reordered ((RowRefList *)g_object_get_data (model, ROW_REF_DATA_STRING),
path, iter, new_order);
/* fetch the interface ->rows_reordered implementation */
iface = GTK_TREE_MODEL_GET_IFACE (model);
rows_reordered_callback = G_STRUCT_MEMBER (gpointer, iface,
G_STRUCT_OFFSET (GtkTreeModelIface,
rows_reordered));
/* Call that default signal handler, it if has been set */
if (rows_reordered_callback)
rows_reordered_callback (GTK_TREE_MODEL (model), path, iter, new_order);
}
/**
* gtk_tree_path_new:
*
* Creates a new #GtkTreePath-struct.
* This refers to a row.
*
* Returns: A newly created #GtkTreePath-struct.
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*/
GtkTreePath *
gtk_tree_path_new (void)
{
GtkTreePath *retval;
retval = g_slice_new (GtkTreePath);
retval->depth = 0;
retval->alloc = 0;
retval->indices = NULL;
return retval;
}
/**
* gtk_tree_path_new_from_string:
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* @path: The string representation of a path
*
* Creates a new #GtkTreePath-struct initialized to @path.
*
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* @path is expected to be a colon separated list of numbers.
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* For example, the string 10:4:0 would create a path of depth
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* 3 pointing to the 11th child of the root node, the 5th
* child of that 11th child, and the 1st child of that 5th child.
* If an invalid path string is passed in, %NULL is returned.
*
* Returns: A newly-created #GtkTreePath-struct, or %NULL
2011-01-12 23:48:20 +00:00
*/
GtkTreePath *
gtk_tree_path_new_from_string (const gchar *path)
{
GtkTreePath *retval;
const gchar *orig_path = path;
gchar *ptr;
gint i;
g_return_val_if_fail (path != NULL, NULL);
g_return_val_if_fail (*path != '\000', NULL);
retval = gtk_tree_path_new ();
while (1)
{
i = strtol (path, &ptr, 10);
if (i < 0)
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{
g_warning (G_STRLOC ": Negative numbers in path %s passed to gtk_tree_path_new_from_string", orig_path);
gtk_tree_path_free (retval);
return NULL;
}
gtk_tree_path_append_index (retval, i);
if (*ptr == '\000')
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break;
if (ptr == path || *ptr != ':')
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{
g_warning (G_STRLOC ": Invalid path %s passed to gtk_tree_path_new_from_string", orig_path);
gtk_tree_path_free (retval);
return NULL;
}
path = ptr + 1;
}
return retval;
}
API additions: _move, _reorder and _swap for stores, path constructor. Fri Jul 26 22:53:37 2002 Kristian Rietveld <kris@gtk.org> API additions: _move, _reorder and _swap for stores, path constructor. * gtk/gtktreemodel.[ch] (gtk_tree_path_new_from_indices): new function. * gtk/gtkliststore.[ch]: added gtk_list_store_reorder_func (private), gtk_list_store_reorder, gtk_list_store_swap, gtk_list_store_move. * gtk/gtktreestore.[ch]: added gtk_tree_store_reorder_func (private), gtk_tree_store_reorder, gtk_tree_store_swap, gtk_tree_store_move. Fri Jul 26 22:32:57 2002 Kristian Rietveld <kris@gtk.org> Merge from stable: * gtk/gtktreestore.c (node_free): return FALSE, (gtk_tree_store_finalize): use g_node_traverse instead of g_node_children_foreach, so the whole tree will be freed (#88854, patch from Emmanuel Briot). Fri Jul 26 22:32:24 2002 Kristian Rietveld <kris@gtk.org> Merge from stable: * gtk/gtktreeview.c (gtk_tree_view_button_press): fix some memleaks, (#84426, patch from Matthias Clasen). Fri Jul 26 22:31:25 2002 Kristian Rietveld <kris@gtk.org> Merge from stable: * gtk/gtktreeview.c (gtk_tree_view_unref_tree_helper): _iter_children check shouldn't be in g_return_return_val_if_fail (pointed out by Josh Green, #88997), (gtk_tree_view_set_model): call _gtk_tree_view_column_unset_model for each column when we unset the model (part of #82484), (gtk_tree_view_get_cell_area): return if we ran out of tree or if we got an invalid path (#82376). * gtk/gtktreeprivate.h: add _gtk_tree_view_column_unset_model. * gtk/gtktreeviewcolumn.c: implement _gtk_tree_view_column_unset_model which disconnects the sort_column_changed_signal (part of #82484). * gtk/gtkliststore.c (gtk_list_store_insert): append row if the given postion is off the end of the tree (#85813). * gtk/gtkentry.c (gtk_cell_editable_key_press_event): let's use 2-space indent, commit changes if up/down keys has been pressed, this overrides the focus key foo so the user won't be surprised (#84665).
2002-07-26 20:51:13 +00:00
/**
* gtk_tree_path_new_from_indices:
* @first_index: first integer
* @...: list of integers terminated by -1
API additions: _move, _reorder and _swap for stores, path constructor. Fri Jul 26 22:53:37 2002 Kristian Rietveld <kris@gtk.org> API additions: _move, _reorder and _swap for stores, path constructor. * gtk/gtktreemodel.[ch] (gtk_tree_path_new_from_indices): new function. * gtk/gtkliststore.[ch]: added gtk_list_store_reorder_func (private), gtk_list_store_reorder, gtk_list_store_swap, gtk_list_store_move. * gtk/gtktreestore.[ch]: added gtk_tree_store_reorder_func (private), gtk_tree_store_reorder, gtk_tree_store_swap, gtk_tree_store_move. Fri Jul 26 22:32:57 2002 Kristian Rietveld <kris@gtk.org> Merge from stable: * gtk/gtktreestore.c (node_free): return FALSE, (gtk_tree_store_finalize): use g_node_traverse instead of g_node_children_foreach, so the whole tree will be freed (#88854, patch from Emmanuel Briot). Fri Jul 26 22:32:24 2002 Kristian Rietveld <kris@gtk.org> Merge from stable: * gtk/gtktreeview.c (gtk_tree_view_button_press): fix some memleaks, (#84426, patch from Matthias Clasen). Fri Jul 26 22:31:25 2002 Kristian Rietveld <kris@gtk.org> Merge from stable: * gtk/gtktreeview.c (gtk_tree_view_unref_tree_helper): _iter_children check shouldn't be in g_return_return_val_if_fail (pointed out by Josh Green, #88997), (gtk_tree_view_set_model): call _gtk_tree_view_column_unset_model for each column when we unset the model (part of #82484), (gtk_tree_view_get_cell_area): return if we ran out of tree or if we got an invalid path (#82376). * gtk/gtktreeprivate.h: add _gtk_tree_view_column_unset_model. * gtk/gtktreeviewcolumn.c: implement _gtk_tree_view_column_unset_model which disconnects the sort_column_changed_signal (part of #82484). * gtk/gtkliststore.c (gtk_list_store_insert): append row if the given postion is off the end of the tree (#85813). * gtk/gtkentry.c (gtk_cell_editable_key_press_event): let's use 2-space indent, commit changes if up/down keys has been pressed, this overrides the focus key foo so the user won't be surprised (#84665).
2002-07-26 20:51:13 +00:00
*
* Creates a new path with @first_index and @varargs as indices.
*
* Returns: A newly created #GtkTreePath-struct
2011-01-12 23:48:20 +00:00
*/
API additions: _move, _reorder and _swap for stores, path constructor. Fri Jul 26 22:53:37 2002 Kristian Rietveld <kris@gtk.org> API additions: _move, _reorder and _swap for stores, path constructor. * gtk/gtktreemodel.[ch] (gtk_tree_path_new_from_indices): new function. * gtk/gtkliststore.[ch]: added gtk_list_store_reorder_func (private), gtk_list_store_reorder, gtk_list_store_swap, gtk_list_store_move. * gtk/gtktreestore.[ch]: added gtk_tree_store_reorder_func (private), gtk_tree_store_reorder, gtk_tree_store_swap, gtk_tree_store_move. Fri Jul 26 22:32:57 2002 Kristian Rietveld <kris@gtk.org> Merge from stable: * gtk/gtktreestore.c (node_free): return FALSE, (gtk_tree_store_finalize): use g_node_traverse instead of g_node_children_foreach, so the whole tree will be freed (#88854, patch from Emmanuel Briot). Fri Jul 26 22:32:24 2002 Kristian Rietveld <kris@gtk.org> Merge from stable: * gtk/gtktreeview.c (gtk_tree_view_button_press): fix some memleaks, (#84426, patch from Matthias Clasen). Fri Jul 26 22:31:25 2002 Kristian Rietveld <kris@gtk.org> Merge from stable: * gtk/gtktreeview.c (gtk_tree_view_unref_tree_helper): _iter_children check shouldn't be in g_return_return_val_if_fail (pointed out by Josh Green, #88997), (gtk_tree_view_set_model): call _gtk_tree_view_column_unset_model for each column when we unset the model (part of #82484), (gtk_tree_view_get_cell_area): return if we ran out of tree or if we got an invalid path (#82376). * gtk/gtktreeprivate.h: add _gtk_tree_view_column_unset_model. * gtk/gtktreeviewcolumn.c: implement _gtk_tree_view_column_unset_model which disconnects the sort_column_changed_signal (part of #82484). * gtk/gtkliststore.c (gtk_list_store_insert): append row if the given postion is off the end of the tree (#85813). * gtk/gtkentry.c (gtk_cell_editable_key_press_event): let's use 2-space indent, commit changes if up/down keys has been pressed, this overrides the focus key foo so the user won't be surprised (#84665).
2002-07-26 20:51:13 +00:00
GtkTreePath *
gtk_tree_path_new_from_indices (gint first_index,
2011-01-12 23:48:20 +00:00
...)
API additions: _move, _reorder and _swap for stores, path constructor. Fri Jul 26 22:53:37 2002 Kristian Rietveld <kris@gtk.org> API additions: _move, _reorder and _swap for stores, path constructor. * gtk/gtktreemodel.[ch] (gtk_tree_path_new_from_indices): new function. * gtk/gtkliststore.[ch]: added gtk_list_store_reorder_func (private), gtk_list_store_reorder, gtk_list_store_swap, gtk_list_store_move. * gtk/gtktreestore.[ch]: added gtk_tree_store_reorder_func (private), gtk_tree_store_reorder, gtk_tree_store_swap, gtk_tree_store_move. Fri Jul 26 22:32:57 2002 Kristian Rietveld <kris@gtk.org> Merge from stable: * gtk/gtktreestore.c (node_free): return FALSE, (gtk_tree_store_finalize): use g_node_traverse instead of g_node_children_foreach, so the whole tree will be freed (#88854, patch from Emmanuel Briot). Fri Jul 26 22:32:24 2002 Kristian Rietveld <kris@gtk.org> Merge from stable: * gtk/gtktreeview.c (gtk_tree_view_button_press): fix some memleaks, (#84426, patch from Matthias Clasen). Fri Jul 26 22:31:25 2002 Kristian Rietveld <kris@gtk.org> Merge from stable: * gtk/gtktreeview.c (gtk_tree_view_unref_tree_helper): _iter_children check shouldn't be in g_return_return_val_if_fail (pointed out by Josh Green, #88997), (gtk_tree_view_set_model): call _gtk_tree_view_column_unset_model for each column when we unset the model (part of #82484), (gtk_tree_view_get_cell_area): return if we ran out of tree or if we got an invalid path (#82376). * gtk/gtktreeprivate.h: add _gtk_tree_view_column_unset_model. * gtk/gtktreeviewcolumn.c: implement _gtk_tree_view_column_unset_model which disconnects the sort_column_changed_signal (part of #82484). * gtk/gtkliststore.c (gtk_list_store_insert): append row if the given postion is off the end of the tree (#85813). * gtk/gtkentry.c (gtk_cell_editable_key_press_event): let's use 2-space indent, commit changes if up/down keys has been pressed, this overrides the focus key foo so the user won't be surprised (#84665).
2002-07-26 20:51:13 +00:00
{
int arg;
va_list args;
GtkTreePath *path;
path = gtk_tree_path_new ();
va_start (args, first_index);
arg = first_index;
while (arg != -1)
{
gtk_tree_path_append_index (path, arg);
arg = va_arg (args, gint);
}
va_end (args);
return path;
}
/**
* gtk_tree_path_new_from_indicesv: (rename-to gtk_tree_path_new_from_indices)
* @indices: (array length=length): array of indices
* @length: length of @indices array
*
* Creates a new path with the given @indices array of @length.
*
* Returns: A newly created #GtkTreePath-struct
*/
GtkTreePath *
gtk_tree_path_new_from_indicesv (gint *indices,
gsize length)
{
GtkTreePath *path;
g_return_val_if_fail (indices != NULL && length != 0, NULL);
path = gtk_tree_path_new ();
path->alloc = length;
path->depth = length;
path->indices = g_new (gint, length);
memcpy (path->indices, indices, length * sizeof (gint));
return path;
}
/**
* gtk_tree_path_to_string:
* @path: A #GtkTreePath-struct
*
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* Generates a string representation of the path.
*
* This string is a : separated list of numbers.
2014-02-05 18:07:34 +00:00
* For example, 4:10:0:3 would be an acceptable
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* return value for this string.
*
* Returns: A newly-allocated string.
2011-01-12 23:48:20 +00:00
* Must be freed with g_free().
*/
gchar *
gtk_tree_path_to_string (GtkTreePath *path)
{
gchar *retval, *ptr, *end;
gint i, n;
g_return_val_if_fail (path != NULL, NULL);
if (path->depth == 0)
return NULL;
n = path->depth * 12;
ptr = retval = g_new0 (gchar, n);
end = ptr + n;
g_snprintf (retval, end - ptr, "%d", path->indices[0]);
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while (*ptr != '\000')
ptr++;
for (i = 1; i < path->depth; i++)
{
g_snprintf (ptr, end - ptr, ":%d", path->indices[i]);
while (*ptr != '\000')
2011-01-12 23:48:20 +00:00
ptr++;
}
return retval;
}
/**
* gtk_tree_path_new_first:
*
* Creates a new #GtkTreePath-struct.
*
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* The string representation of this path is 0.
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*
* Returns: A new #GtkTreePath-struct
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*/
GtkTreePath *
gtk_tree_path_new_first (void)
{
GtkTreePath *retval;
retval = gtk_tree_path_new ();
gtk_tree_path_append_index (retval, 0);
return retval;
}
/**
* gtk_tree_path_append_index:
* @path: a #GtkTreePath-struct
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* @index_: the index
*
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* Appends a new index to a path.
*
* As a result, the depth of the path is increased.
*/
void
gtk_tree_path_append_index (GtkTreePath *path,
gint index_)
{
g_return_if_fail (path != NULL);
g_return_if_fail (index_ >= 0);
if (path->depth == path->alloc)
{
gint *indices;
path->alloc = MAX (path->alloc * 2, 1);
indices = g_new (gint, path->alloc);
memcpy (indices, path->indices, path->depth * sizeof (gint));
g_free (path->indices);
path->indices = indices;
}
fix bug where it always set the foreground, even if we were only using a 2001-02-12 Havoc Pennington <hp@pobox.com> * gdk/gdkpango.c (gdk_pango_get_gc): fix bug where it always set the foreground, even if we were only using a stipple. (gdk_draw_layout_line_with_colors): new function, allow override colors (gdk_draw_layout_with_colors): new function, allow override colors (gdk_pango_layout_line_get_clip_region): function to get the clip region for a logical text range (gdk_pango_layout_get_clip_region): get the clip region for a logical text range * gdk/x11/gdkcolor-x11.c: forward declare gdk_colormap_sync(), (gdk_colormap_new): fix call to gdk_colormap_sync() so it has the right number of arguments. * gtk/gtktextbtree.c (gtk_text_btree_node_check_consistency): enhance the function to check that node data corresponds to a view still belonging to the tree. * gtk/gtktreeview.c (gtk_tree_view_changed): we were leaking the GtkTreePath (gtk_tree_view_inserted): ditto (gtk_tree_view_child_toggled): ditto * gtk/gtktreemodel.c (gtk_tree_path_append_index): use realloc to simplify this code. * gtk/gtkcellrenderertext.c (get_layout): fix leak of a PangoAttrList * demos/gtk-demo/main.c (load_file): Fix leak of a GString * gtk/gtkentry.c (gtk_entry_realize): Fix leak of a GdkCursor * gtk/gtkmenubar.c (gtk_menu_bar_size_request): consider toggle size in the size request (gtk_menu_bar_size_allocate): consider toggle size here * gtk/gtkimagemenuitem.h, gtkimagemenuitem.c: Menu item that displays a widget in the toggle slot * gtk/testgtk.c: test GtkImageMenuItem * gtk/Makefile.am, gtk/gtk.h: Add GtkImageMenuItem * gtk/gtkmenuitem.h: Use "gint" not "guint16" for toggle size request and allocation * gtk/gtkmenu.c (gtk_menu_size_request): use gint not guint16 * gtk/gtkcheckmenuitem.c (gtk_check_menu_item_toggle_size_request): ditto
2001-02-13 05:44:47 +00:00
path->depth += 1;
path->indices[path->depth - 1] = index_;
}
/**
* gtk_tree_path_prepend_index:
* @path: a #GtkTreePath-struct
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* @index_: the index
*
* Prepends a new index to a path.
*
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* As a result, the depth of the path is increased.
*/
void
gtk_tree_path_prepend_index (GtkTreePath *path,
2011-01-12 23:48:20 +00:00
gint index)
{
if (path->depth == path->alloc)
{
gint *indices;
path->alloc = MAX (path->alloc * 2, 1);
indices = g_new (gint, path->alloc);
memcpy (indices + 1, path->indices, path->depth * sizeof (gint));
g_free (path->indices);
path->indices = indices;
}
else if (path->depth > 0)
memmove (path->indices + 1, path->indices, path->depth * sizeof (gint));
path->depth += 1;
path->indices[0] = index;
}
/**
* gtk_tree_path_get_depth:
* @path: a #GtkTreePath-struct
*
* Returns the current depth of @path.
*
* Returns: The depth of @path
2011-01-12 23:48:20 +00:00
*/
gint
gtk_tree_path_get_depth (GtkTreePath *path)
{
g_return_val_if_fail (path != NULL, 0);
return path->depth;
}
/**
* gtk_tree_path_get_indices: (skip)
* @path: a #GtkTreePath-struct
*
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* Returns the current indices of @path.
*
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* This is an array of integers, each representing a node in a tree.
* This value should not be freed.
*
* The length of the array can be obtained with gtk_tree_path_get_depth().
*
* Returns: The current indices, or %NULL
2011-01-12 23:48:20 +00:00
*/
gint *
gtk_tree_path_get_indices (GtkTreePath *path)
{
g_return_val_if_fail (path != NULL, NULL);
return path->indices;
}
/**
2013-10-09 18:09:35 +00:00
* gtk_tree_path_get_indices_with_depth: (rename-to gtk_tree_path_get_indices)
* @path: a #GtkTreePath-struct
* @depth: (out) (allow-none): return location for number of elements
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* returned in the integer array, or %NULL
*
* Returns the current indices of @path.
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*
* This is an array of integers, each representing a node in a tree.
* It also returns the number of elements in the array.
* The array should not be freed.
*
* Returns: (array length=depth) (transfer none): The current
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* indices, or %NULL
*/
gint *
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gtk_tree_path_get_indices_with_depth (GtkTreePath *path,
gint *depth)
{
g_return_val_if_fail (path != NULL, NULL);
if (depth)
*depth = path->depth;
return path->indices;
}
/**
* gtk_tree_path_free:
* @path: (allow-none): a #GtkTreePath-struct
*
* Frees @path. If @path is %NULL, it simply returns.
2011-01-12 23:48:20 +00:00
*/
void
gtk_tree_path_free (GtkTreePath *path)
{
if (!path)
return;
g_free (path->indices);
g_slice_free (GtkTreePath, path);
}
/**
* gtk_tree_path_copy:
* @path: a #GtkTreePath-struct
*
* Creates a new #GtkTreePath-struct as a copy of @path.
*
* Returns: a new #GtkTreePath-struct
2011-01-12 23:48:20 +00:00
*/
GtkTreePath *
gtk_tree_path_copy (const GtkTreePath *path)
{
GtkTreePath *retval;
g_return_val_if_fail (path != NULL, NULL);
retval = g_slice_new (GtkTreePath);
retval->depth = path->depth;
retval->alloc = retval->depth;
retval->indices = g_new (gint, path->alloc);
memcpy (retval->indices, path->indices, path->depth * sizeof (gint));
return retval;
}
2010-04-27 11:31:23 +00:00
G_DEFINE_BOXED_TYPE (GtkTreePath, gtk_tree_path,
gtk_tree_path_copy,
gtk_tree_path_free)
/**
* gtk_tree_path_compare:
* @a: a #GtkTreePath-struct
* @b: a #GtkTreePath-struct to compare with
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*
* Compares two paths.
*
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* If @a appears before @b in a tree, then -1 is returned.
* If @b appears before @a, then 1 is returned.
* If the two nodes are equal, then 0 is returned.
*
* Returns: the relative positions of @a and @b
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*/
gint
gtk_tree_path_compare (const GtkTreePath *a,
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const GtkTreePath *b)
{
gint p = 0, q = 0;
g_return_val_if_fail (a != NULL, 0);
g_return_val_if_fail (b != NULL, 0);
g_return_val_if_fail (a->depth > 0, 0);
g_return_val_if_fail (b->depth > 0, 0);
do
{
if (a->indices[p] == b->indices[q])
2011-01-12 23:48:20 +00:00
continue;
return (a->indices[p] < b->indices[q]?-1:1);
}
while (++p < a->depth && ++q < b->depth);
if (a->depth == b->depth)
return 0;
return (a->depth < b->depth?-1:1);
}
fix bug in here where prev pointer was set to the wrong thing 2001-01-30 Havoc Pennington <hp@redhat.com> * gtk/gtkliststore.c (gtk_list_store_insert_before): fix bug in here where prev pointer was set to the wrong thing * gtk/gtktreemodel.c (gtk_tree_path_is_ancestor): new function (gtk_tree_path_is_descendant): new function * gtk/gtkliststore.c (gtk_list_store_iter_n_children): return cached length (gtk_list_store_get_iter): don't modify iter if we can't get the path. * gtk/gtkliststore.h (struct _GtkListStore): cache the length * gtk/gtktreednd.h: add virtual function row_drop_possible() to GtkTreeDragDest * gtk/gtktreestore.c (copy_node_data): fix varargs type error that was causing segfault * gtk/gtktreedatalist.c (_gtk_tree_data_list_node_copy): set next pointer to NULL * gtk/gtktreestore.c (gtk_tree_store_append): fix memleak * gtk/gtkliststore.c (gtk_list_store_iter_next): don't modify iter on returning FALSE (gtk_list_store_iter_children): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_parent): ditto * gtk/gtktreestore.c (gtk_tree_store_get_path): g_return_if_fail on iter->user_data != NULL instead of silently accepting it. (gtk_tree_store_iter_next): ditto. Also, don't modify iter unless we are returning TRUE. (gtk_tree_store_iter_children): ditto (gtk_tree_store_iter_nth_child): ditto (gtk_tree_store_iter_parent): ditto (gtk_tree_store_insert): remove handling of parent->user_data == NULL, replace with parent == NULL * gtk/gtktreemodel.c (inserted_callback): put some fixes in here, and a comment explaining things * gtk/gtktreestore.c: add GtkTreeDragSource/GtkTreeDragDest interface support to GtkTreeStore. * gtk/gtktreemodel.c (gtk_tree_path_prev): didn't properly return FALSE if no prev, fix * gtk/gtktreeview.c (set_source_row): use a row reference (set_dest_row): use a row reference
2001-01-31 00:57:49 +00:00
/**
* gtk_tree_path_is_ancestor:
* @path: a #GtkTreePath-struct
* @descendant: another #GtkTreePath-struct
*
* Returns %TRUE if @descendant is a descendant of @path.
*
* Returns: %TRUE if @descendant is contained inside @path
2011-01-12 23:48:20 +00:00
*/
fix bug in here where prev pointer was set to the wrong thing 2001-01-30 Havoc Pennington <hp@redhat.com> * gtk/gtkliststore.c (gtk_list_store_insert_before): fix bug in here where prev pointer was set to the wrong thing * gtk/gtktreemodel.c (gtk_tree_path_is_ancestor): new function (gtk_tree_path_is_descendant): new function * gtk/gtkliststore.c (gtk_list_store_iter_n_children): return cached length (gtk_list_store_get_iter): don't modify iter if we can't get the path. * gtk/gtkliststore.h (struct _GtkListStore): cache the length * gtk/gtktreednd.h: add virtual function row_drop_possible() to GtkTreeDragDest * gtk/gtktreestore.c (copy_node_data): fix varargs type error that was causing segfault * gtk/gtktreedatalist.c (_gtk_tree_data_list_node_copy): set next pointer to NULL * gtk/gtktreestore.c (gtk_tree_store_append): fix memleak * gtk/gtkliststore.c (gtk_list_store_iter_next): don't modify iter on returning FALSE (gtk_list_store_iter_children): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_parent): ditto * gtk/gtktreestore.c (gtk_tree_store_get_path): g_return_if_fail on iter->user_data != NULL instead of silently accepting it. (gtk_tree_store_iter_next): ditto. Also, don't modify iter unless we are returning TRUE. (gtk_tree_store_iter_children): ditto (gtk_tree_store_iter_nth_child): ditto (gtk_tree_store_iter_parent): ditto (gtk_tree_store_insert): remove handling of parent->user_data == NULL, replace with parent == NULL * gtk/gtktreemodel.c (inserted_callback): put some fixes in here, and a comment explaining things * gtk/gtktreestore.c: add GtkTreeDragSource/GtkTreeDragDest interface support to GtkTreeStore. * gtk/gtktreemodel.c (gtk_tree_path_prev): didn't properly return FALSE if no prev, fix * gtk/gtktreeview.c (set_source_row): use a row reference (set_dest_row): use a row reference
2001-01-31 00:57:49 +00:00
gboolean
gtk_tree_path_is_ancestor (GtkTreePath *path,
GtkTreePath *descendant)
{
gint i;
fix bug in here where prev pointer was set to the wrong thing 2001-01-30 Havoc Pennington <hp@redhat.com> * gtk/gtkliststore.c (gtk_list_store_insert_before): fix bug in here where prev pointer was set to the wrong thing * gtk/gtktreemodel.c (gtk_tree_path_is_ancestor): new function (gtk_tree_path_is_descendant): new function * gtk/gtkliststore.c (gtk_list_store_iter_n_children): return cached length (gtk_list_store_get_iter): don't modify iter if we can't get the path. * gtk/gtkliststore.h (struct _GtkListStore): cache the length * gtk/gtktreednd.h: add virtual function row_drop_possible() to GtkTreeDragDest * gtk/gtktreestore.c (copy_node_data): fix varargs type error that was causing segfault * gtk/gtktreedatalist.c (_gtk_tree_data_list_node_copy): set next pointer to NULL * gtk/gtktreestore.c (gtk_tree_store_append): fix memleak * gtk/gtkliststore.c (gtk_list_store_iter_next): don't modify iter on returning FALSE (gtk_list_store_iter_children): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_parent): ditto * gtk/gtktreestore.c (gtk_tree_store_get_path): g_return_if_fail on iter->user_data != NULL instead of silently accepting it. (gtk_tree_store_iter_next): ditto. Also, don't modify iter unless we are returning TRUE. (gtk_tree_store_iter_children): ditto (gtk_tree_store_iter_nth_child): ditto (gtk_tree_store_iter_parent): ditto (gtk_tree_store_insert): remove handling of parent->user_data == NULL, replace with parent == NULL * gtk/gtktreemodel.c (inserted_callback): put some fixes in here, and a comment explaining things * gtk/gtktreestore.c: add GtkTreeDragSource/GtkTreeDragDest interface support to GtkTreeStore. * gtk/gtktreemodel.c (gtk_tree_path_prev): didn't properly return FALSE if no prev, fix * gtk/gtktreeview.c (set_source_row): use a row reference (set_dest_row): use a row reference
2001-01-31 00:57:49 +00:00
g_return_val_if_fail (path != NULL, FALSE);
g_return_val_if_fail (descendant != NULL, FALSE);
/* can't be an ancestor if we're deeper */
if (path->depth >= descendant->depth)
return FALSE;
fix bug in here where prev pointer was set to the wrong thing 2001-01-30 Havoc Pennington <hp@redhat.com> * gtk/gtkliststore.c (gtk_list_store_insert_before): fix bug in here where prev pointer was set to the wrong thing * gtk/gtktreemodel.c (gtk_tree_path_is_ancestor): new function (gtk_tree_path_is_descendant): new function * gtk/gtkliststore.c (gtk_list_store_iter_n_children): return cached length (gtk_list_store_get_iter): don't modify iter if we can't get the path. * gtk/gtkliststore.h (struct _GtkListStore): cache the length * gtk/gtktreednd.h: add virtual function row_drop_possible() to GtkTreeDragDest * gtk/gtktreestore.c (copy_node_data): fix varargs type error that was causing segfault * gtk/gtktreedatalist.c (_gtk_tree_data_list_node_copy): set next pointer to NULL * gtk/gtktreestore.c (gtk_tree_store_append): fix memleak * gtk/gtkliststore.c (gtk_list_store_iter_next): don't modify iter on returning FALSE (gtk_list_store_iter_children): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_parent): ditto * gtk/gtktreestore.c (gtk_tree_store_get_path): g_return_if_fail on iter->user_data != NULL instead of silently accepting it. (gtk_tree_store_iter_next): ditto. Also, don't modify iter unless we are returning TRUE. (gtk_tree_store_iter_children): ditto (gtk_tree_store_iter_nth_child): ditto (gtk_tree_store_iter_parent): ditto (gtk_tree_store_insert): remove handling of parent->user_data == NULL, replace with parent == NULL * gtk/gtktreemodel.c (inserted_callback): put some fixes in here, and a comment explaining things * gtk/gtktreestore.c: add GtkTreeDragSource/GtkTreeDragDest interface support to GtkTreeStore. * gtk/gtktreemodel.c (gtk_tree_path_prev): didn't properly return FALSE if no prev, fix * gtk/gtktreeview.c (set_source_row): use a row reference (set_dest_row): use a row reference
2001-01-31 00:57:49 +00:00
i = 0;
while (i < path->depth)
{
if (path->indices[i] != descendant->indices[i])
return FALSE;
++i;
}
return TRUE;
}
/**
* gtk_tree_path_is_descendant:
* @path: a #GtkTreePath-struct
* @ancestor: another #GtkTreePath-struct
*
Doc typo fix. (#68172) * gtk/gtksocket.c (gtk_socket_get_id): Doc typo fix. (#68172) * gtk/gtktreemodel.c (gtk_tree_path_is_descendant): Fix docs. * gtk/gtktreemodel.c (gtk_tree_model_rows_reordered): Document. * gtk/gtkwindow.c (gtk_window_remove_accel_group): Fix docs. * gtk/gtkrc.c (gtk_rc_get_style_by_paths), gtk/gtkwidget.c (gtk_widget_get_toplevel, gtk_widget_push_composite_child), gtk/gtkdialog.c (gtk_dialog_new_with_buttons, gtk_dialog_run): Keep gtk-doc from messing up the indentation of inline examples. * gtk/gtkmain.c, gtk/gtkrc.c: Consistently call g_getenv() instead of getenv(). * gtk/gtktreemodel.c, gtk/gtkaccelgroup.c, gtk/gtkclipboard.c, gtk/gtkdnd.c, gtk/gtkiconfactory.c, gtk/gtkrc.c, gtk/gtkstyle.c, gtk/gtkselection.c: Doc fixes. * gtk/gtkaccelmap.c (gtk_accel_map_add_filter, gtk_accel_map_foreach_unfiltered, gtk_accel_map_load_scanner): Document. * gtk/tmpl/gtksocket.sgml: Mention gtk_socket_get_id() instead of GTK_WINDOW_XWINDOW(). (#68172) * gtk/gtk-sections.txt: Move functions which are documented as "private" or "internal" into Private subsections. * gtk/tmpl/gtkdnd.sgml, gtk/tmpl/gtkobject.sgml, gtk/tmpl/gtkrc.sgml, gtk/tmpl/gtktooltips.sgml, gtk/tmpl/gtkwidget.sgml, gtk/tmpl/gtkclipboard.sgml, gtk/tmpl/gtkstyle.sgml, gtk/tmpl/gtkselection.sgml, gtk/tmpl/gtkfeatures.sgml: Minor markup fixes. * gtk/tmpl/gtksignal.sgml: Add link to GLib signal docs. * gtk/tmpl/gtkpreview.sgml, gtk/tmpl/gtktext.sgml, gtk/tmpl/gtktree.sgml: Remove "deprecated" from short desc. * gtk/tmpl/gtkrc.sgml: Correct names of default RC files.
2002-01-08 00:04:57 +00:00
* Returns %TRUE if @path is a descendant of @ancestor.
*
* Returns: %TRUE if @ancestor contains @path somewhere below it
2011-01-12 23:48:20 +00:00
*/
fix bug in here where prev pointer was set to the wrong thing 2001-01-30 Havoc Pennington <hp@redhat.com> * gtk/gtkliststore.c (gtk_list_store_insert_before): fix bug in here where prev pointer was set to the wrong thing * gtk/gtktreemodel.c (gtk_tree_path_is_ancestor): new function (gtk_tree_path_is_descendant): new function * gtk/gtkliststore.c (gtk_list_store_iter_n_children): return cached length (gtk_list_store_get_iter): don't modify iter if we can't get the path. * gtk/gtkliststore.h (struct _GtkListStore): cache the length * gtk/gtktreednd.h: add virtual function row_drop_possible() to GtkTreeDragDest * gtk/gtktreestore.c (copy_node_data): fix varargs type error that was causing segfault * gtk/gtktreedatalist.c (_gtk_tree_data_list_node_copy): set next pointer to NULL * gtk/gtktreestore.c (gtk_tree_store_append): fix memleak * gtk/gtkliststore.c (gtk_list_store_iter_next): don't modify iter on returning FALSE (gtk_list_store_iter_children): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_parent): ditto * gtk/gtktreestore.c (gtk_tree_store_get_path): g_return_if_fail on iter->user_data != NULL instead of silently accepting it. (gtk_tree_store_iter_next): ditto. Also, don't modify iter unless we are returning TRUE. (gtk_tree_store_iter_children): ditto (gtk_tree_store_iter_nth_child): ditto (gtk_tree_store_iter_parent): ditto (gtk_tree_store_insert): remove handling of parent->user_data == NULL, replace with parent == NULL * gtk/gtktreemodel.c (inserted_callback): put some fixes in here, and a comment explaining things * gtk/gtktreestore.c: add GtkTreeDragSource/GtkTreeDragDest interface support to GtkTreeStore. * gtk/gtktreemodel.c (gtk_tree_path_prev): didn't properly return FALSE if no prev, fix * gtk/gtktreeview.c (set_source_row): use a row reference (set_dest_row): use a row reference
2001-01-31 00:57:49 +00:00
gboolean
gtk_tree_path_is_descendant (GtkTreePath *path,
GtkTreePath *ancestor)
{
gint i;
fix bug in here where prev pointer was set to the wrong thing 2001-01-30 Havoc Pennington <hp@redhat.com> * gtk/gtkliststore.c (gtk_list_store_insert_before): fix bug in here where prev pointer was set to the wrong thing * gtk/gtktreemodel.c (gtk_tree_path_is_ancestor): new function (gtk_tree_path_is_descendant): new function * gtk/gtkliststore.c (gtk_list_store_iter_n_children): return cached length (gtk_list_store_get_iter): don't modify iter if we can't get the path. * gtk/gtkliststore.h (struct _GtkListStore): cache the length * gtk/gtktreednd.h: add virtual function row_drop_possible() to GtkTreeDragDest * gtk/gtktreestore.c (copy_node_data): fix varargs type error that was causing segfault * gtk/gtktreedatalist.c (_gtk_tree_data_list_node_copy): set next pointer to NULL * gtk/gtktreestore.c (gtk_tree_store_append): fix memleak * gtk/gtkliststore.c (gtk_list_store_iter_next): don't modify iter on returning FALSE (gtk_list_store_iter_children): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_parent): ditto * gtk/gtktreestore.c (gtk_tree_store_get_path): g_return_if_fail on iter->user_data != NULL instead of silently accepting it. (gtk_tree_store_iter_next): ditto. Also, don't modify iter unless we are returning TRUE. (gtk_tree_store_iter_children): ditto (gtk_tree_store_iter_nth_child): ditto (gtk_tree_store_iter_parent): ditto (gtk_tree_store_insert): remove handling of parent->user_data == NULL, replace with parent == NULL * gtk/gtktreemodel.c (inserted_callback): put some fixes in here, and a comment explaining things * gtk/gtktreestore.c: add GtkTreeDragSource/GtkTreeDragDest interface support to GtkTreeStore. * gtk/gtktreemodel.c (gtk_tree_path_prev): didn't properly return FALSE if no prev, fix * gtk/gtktreeview.c (set_source_row): use a row reference (set_dest_row): use a row reference
2001-01-31 00:57:49 +00:00
g_return_val_if_fail (path != NULL, FALSE);
g_return_val_if_fail (ancestor != NULL, FALSE);
fix bug in here where prev pointer was set to the wrong thing 2001-01-30 Havoc Pennington <hp@redhat.com> * gtk/gtkliststore.c (gtk_list_store_insert_before): fix bug in here where prev pointer was set to the wrong thing * gtk/gtktreemodel.c (gtk_tree_path_is_ancestor): new function (gtk_tree_path_is_descendant): new function * gtk/gtkliststore.c (gtk_list_store_iter_n_children): return cached length (gtk_list_store_get_iter): don't modify iter if we can't get the path. * gtk/gtkliststore.h (struct _GtkListStore): cache the length * gtk/gtktreednd.h: add virtual function row_drop_possible() to GtkTreeDragDest * gtk/gtktreestore.c (copy_node_data): fix varargs type error that was causing segfault * gtk/gtktreedatalist.c (_gtk_tree_data_list_node_copy): set next pointer to NULL * gtk/gtktreestore.c (gtk_tree_store_append): fix memleak * gtk/gtkliststore.c (gtk_list_store_iter_next): don't modify iter on returning FALSE (gtk_list_store_iter_children): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_parent): ditto * gtk/gtktreestore.c (gtk_tree_store_get_path): g_return_if_fail on iter->user_data != NULL instead of silently accepting it. (gtk_tree_store_iter_next): ditto. Also, don't modify iter unless we are returning TRUE. (gtk_tree_store_iter_children): ditto (gtk_tree_store_iter_nth_child): ditto (gtk_tree_store_iter_parent): ditto (gtk_tree_store_insert): remove handling of parent->user_data == NULL, replace with parent == NULL * gtk/gtktreemodel.c (inserted_callback): put some fixes in here, and a comment explaining things * gtk/gtktreestore.c: add GtkTreeDragSource/GtkTreeDragDest interface support to GtkTreeStore. * gtk/gtktreemodel.c (gtk_tree_path_prev): didn't properly return FALSE if no prev, fix * gtk/gtktreeview.c (set_source_row): use a row reference (set_dest_row): use a row reference
2001-01-31 00:57:49 +00:00
/* can't be a descendant if we're shallower in the tree */
if (path->depth <= ancestor->depth)
return FALSE;
fix bug in here where prev pointer was set to the wrong thing 2001-01-30 Havoc Pennington <hp@redhat.com> * gtk/gtkliststore.c (gtk_list_store_insert_before): fix bug in here where prev pointer was set to the wrong thing * gtk/gtktreemodel.c (gtk_tree_path_is_ancestor): new function (gtk_tree_path_is_descendant): new function * gtk/gtkliststore.c (gtk_list_store_iter_n_children): return cached length (gtk_list_store_get_iter): don't modify iter if we can't get the path. * gtk/gtkliststore.h (struct _GtkListStore): cache the length * gtk/gtktreednd.h: add virtual function row_drop_possible() to GtkTreeDragDest * gtk/gtktreestore.c (copy_node_data): fix varargs type error that was causing segfault * gtk/gtktreedatalist.c (_gtk_tree_data_list_node_copy): set next pointer to NULL * gtk/gtktreestore.c (gtk_tree_store_append): fix memleak * gtk/gtkliststore.c (gtk_list_store_iter_next): don't modify iter on returning FALSE (gtk_list_store_iter_children): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_parent): ditto * gtk/gtktreestore.c (gtk_tree_store_get_path): g_return_if_fail on iter->user_data != NULL instead of silently accepting it. (gtk_tree_store_iter_next): ditto. Also, don't modify iter unless we are returning TRUE. (gtk_tree_store_iter_children): ditto (gtk_tree_store_iter_nth_child): ditto (gtk_tree_store_iter_parent): ditto (gtk_tree_store_insert): remove handling of parent->user_data == NULL, replace with parent == NULL * gtk/gtktreemodel.c (inserted_callback): put some fixes in here, and a comment explaining things * gtk/gtktreestore.c: add GtkTreeDragSource/GtkTreeDragDest interface support to GtkTreeStore. * gtk/gtktreemodel.c (gtk_tree_path_prev): didn't properly return FALSE if no prev, fix * gtk/gtktreeview.c (set_source_row): use a row reference (set_dest_row): use a row reference
2001-01-31 00:57:49 +00:00
i = 0;
while (i < ancestor->depth)
{
if (path->indices[i] != ancestor->indices[i])
return FALSE;
++i;
}
return TRUE;
}
/**
* gtk_tree_path_next:
* @path: a #GtkTreePath-struct
*
* Moves the @path to point to the next node at the current depth.
2011-01-12 23:48:20 +00:00
*/
void
gtk_tree_path_next (GtkTreePath *path)
{
g_return_if_fail (path != NULL);
g_return_if_fail (path->depth > 0);
path->indices[path->depth - 1] ++;
}
/**
* gtk_tree_path_prev:
* @path: a #GtkTreePath-struct
*
2011-01-12 23:48:20 +00:00
* Moves the @path to point to the previous node at the
* current depth, if it exists.
*
* Returns: %TRUE if @path has a previous node, and
2011-01-12 23:48:20 +00:00
* the move was made
*/
Adapt to GtkTreeSelection changes 2001-01-01 Havoc Pennington <hp@redhat.com> * gtk/gtktreeview.c: Adapt to GtkTreeSelection changes * gtk/gtktreeselection.c (_gtk_tree_selection_set_tree_view): don't fill in tree_view->priv->selection, kind of an unexpected side effect * gtk/gtkcellrenderertext.c: Remove definition of _ and include gtkintl.h * gtk/gtkcellrenderer.c: Remove definition of _ and include gtkintl.h (gtk_cell_renderer_get_property): remove calls to g_value_init * gtk/gtkcellrendererpixbuf.c: Remove definition of _ and include gtkintl.h * gtk/gtkcellrenderertextpixbuf.c: Remove definition of _ macro and include gtkintl.h (gtk_cell_renderer_text_pixbuf_class_init): remove spaces from property names * gtk/gtktreeselection.c (_gtk_tree_selection_new): rename, return GtkTreeSelection (_gtk_tree_selection_new_from_with_view): rename, return GtkTreeSelection (_gtk_tree_selection_set_tree_view): rename with uscore (gtk_tree_selection_get_selected): fill in the "model" out param first, so it gets filled in even if we return at the top of the function (gtk_tree_selection_real_select_all): add a comment and an else{} to clarify this a bit (gtk_tree_selection_real_unselect_all): add the same else{} * gtk/gtktreeselection.h: Rename new, new_with_tree_view, and set_tree_view to have underscore prefixes, move them to the private header, fix return type of new_with_tree_view (struct _GtkTreeSelection): mark struct fields private * gtk/gtktreemodel.c (gtk_tree_model_get_flags): return GtkTreeModelFlags, not a guint (gtk_tree_path_prev): return gboolean not gint (gtk_tree_path_up): return gboolean not gint * gtk/gtktreemodel.h (struct _GtkTreeModelIface): make get_flags return GtkTreeModelFlags, not a guint * gtk/gtktreemodelsort.c (gtk_tree_model_sort_finalize): check that child model is non-null before unrefing it (g_value_int_compare_func): make this a qsort compare func, not a boolean predicate * gtk/gtktreemodelsort.h: rename gtk_tree_model_set_sort_column, (add -umn to the end), and mark it unimplemented (gtk_tree_model_sort_resort): remove, this wasn't implemented, and I don't see what it's for - doesn't the model always sort itself? (gtk_tree_model_sort_set_compare): this had the wrong signature * gtk/gtktreeviewcolumn.c (gtk_tree_view_column_set_attributes): Fix the docs to say that it destructively replaces existing attributes (previously said that it added attributes). (gtk_tree_view_column_set_visible): canonicalize bool before equality testing. Also, check for realization before hiding/showing the tree_column->window; if this window could exist before realization, then it's busted and needs fixing, we can't create GDK resources pre-realization. Also, remove superfluous queue_resize(), since set_size() does that for us. (gtk_tree_view_column_set_col_type): check realization before using tree_column->window * gtk/gtktreedatalist.c: fix filename in copyright notice
2001-01-01 19:01:54 +00:00
gboolean
gtk_tree_path_prev (GtkTreePath *path)
{
g_return_val_if_fail (path != NULL, FALSE);
2004-11-15 16:22:49 +00:00
if (path->depth == 0)
return FALSE;
fix bug in here where prev pointer was set to the wrong thing 2001-01-30 Havoc Pennington <hp@redhat.com> * gtk/gtkliststore.c (gtk_list_store_insert_before): fix bug in here where prev pointer was set to the wrong thing * gtk/gtktreemodel.c (gtk_tree_path_is_ancestor): new function (gtk_tree_path_is_descendant): new function * gtk/gtkliststore.c (gtk_list_store_iter_n_children): return cached length (gtk_list_store_get_iter): don't modify iter if we can't get the path. * gtk/gtkliststore.h (struct _GtkListStore): cache the length * gtk/gtktreednd.h: add virtual function row_drop_possible() to GtkTreeDragDest * gtk/gtktreestore.c (copy_node_data): fix varargs type error that was causing segfault * gtk/gtktreedatalist.c (_gtk_tree_data_list_node_copy): set next pointer to NULL * gtk/gtktreestore.c (gtk_tree_store_append): fix memleak * gtk/gtkliststore.c (gtk_list_store_iter_next): don't modify iter on returning FALSE (gtk_list_store_iter_children): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_parent): ditto * gtk/gtktreestore.c (gtk_tree_store_get_path): g_return_if_fail on iter->user_data != NULL instead of silently accepting it. (gtk_tree_store_iter_next): ditto. Also, don't modify iter unless we are returning TRUE. (gtk_tree_store_iter_children): ditto (gtk_tree_store_iter_nth_child): ditto (gtk_tree_store_iter_parent): ditto (gtk_tree_store_insert): remove handling of parent->user_data == NULL, replace with parent == NULL * gtk/gtktreemodel.c (inserted_callback): put some fixes in here, and a comment explaining things * gtk/gtktreestore.c: add GtkTreeDragSource/GtkTreeDragDest interface support to GtkTreeStore. * gtk/gtktreemodel.c (gtk_tree_path_prev): didn't properly return FALSE if no prev, fix * gtk/gtktreeview.c (set_source_row): use a row reference (set_dest_row): use a row reference
2001-01-31 00:57:49 +00:00
if (path->indices[path->depth - 1] == 0)
return FALSE;
fix bug in here where prev pointer was set to the wrong thing 2001-01-30 Havoc Pennington <hp@redhat.com> * gtk/gtkliststore.c (gtk_list_store_insert_before): fix bug in here where prev pointer was set to the wrong thing * gtk/gtktreemodel.c (gtk_tree_path_is_ancestor): new function (gtk_tree_path_is_descendant): new function * gtk/gtkliststore.c (gtk_list_store_iter_n_children): return cached length (gtk_list_store_get_iter): don't modify iter if we can't get the path. * gtk/gtkliststore.h (struct _GtkListStore): cache the length * gtk/gtktreednd.h: add virtual function row_drop_possible() to GtkTreeDragDest * gtk/gtktreestore.c (copy_node_data): fix varargs type error that was causing segfault * gtk/gtktreedatalist.c (_gtk_tree_data_list_node_copy): set next pointer to NULL * gtk/gtktreestore.c (gtk_tree_store_append): fix memleak * gtk/gtkliststore.c (gtk_list_store_iter_next): don't modify iter on returning FALSE (gtk_list_store_iter_children): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_nth_child): ditto (gtk_list_store_iter_parent): ditto * gtk/gtktreestore.c (gtk_tree_store_get_path): g_return_if_fail on iter->user_data != NULL instead of silently accepting it. (gtk_tree_store_iter_next): ditto. Also, don't modify iter unless we are returning TRUE. (gtk_tree_store_iter_children): ditto (gtk_tree_store_iter_nth_child): ditto (gtk_tree_store_iter_parent): ditto (gtk_tree_store_insert): remove handling of parent->user_data == NULL, replace with parent == NULL * gtk/gtktreemodel.c (inserted_callback): put some fixes in here, and a comment explaining things * gtk/gtktreestore.c: add GtkTreeDragSource/GtkTreeDragDest interface support to GtkTreeStore. * gtk/gtktreemodel.c (gtk_tree_path_prev): didn't properly return FALSE if no prev, fix * gtk/gtktreeview.c (set_source_row): use a row reference (set_dest_row): use a row reference
2001-01-31 00:57:49 +00:00
path->indices[path->depth - 1] -= 1;
return TRUE;
}
/**
* gtk_tree_path_up:
* @path: a #GtkTreePath-struct
*
* Moves the @path to point to its parent node, if it has a parent.
*
* Returns: %TRUE if @path has a parent, and the move was made
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*/
Adapt to GtkTreeSelection changes 2001-01-01 Havoc Pennington <hp@redhat.com> * gtk/gtktreeview.c: Adapt to GtkTreeSelection changes * gtk/gtktreeselection.c (_gtk_tree_selection_set_tree_view): don't fill in tree_view->priv->selection, kind of an unexpected side effect * gtk/gtkcellrenderertext.c: Remove definition of _ and include gtkintl.h * gtk/gtkcellrenderer.c: Remove definition of _ and include gtkintl.h (gtk_cell_renderer_get_property): remove calls to g_value_init * gtk/gtkcellrendererpixbuf.c: Remove definition of _ and include gtkintl.h * gtk/gtkcellrenderertextpixbuf.c: Remove definition of _ macro and include gtkintl.h (gtk_cell_renderer_text_pixbuf_class_init): remove spaces from property names * gtk/gtktreeselection.c (_gtk_tree_selection_new): rename, return GtkTreeSelection (_gtk_tree_selection_new_from_with_view): rename, return GtkTreeSelection (_gtk_tree_selection_set_tree_view): rename with uscore (gtk_tree_selection_get_selected): fill in the "model" out param first, so it gets filled in even if we return at the top of the function (gtk_tree_selection_real_select_all): add a comment and an else{} to clarify this a bit (gtk_tree_selection_real_unselect_all): add the same else{} * gtk/gtktreeselection.h: Rename new, new_with_tree_view, and set_tree_view to have underscore prefixes, move them to the private header, fix return type of new_with_tree_view (struct _GtkTreeSelection): mark struct fields private * gtk/gtktreemodel.c (gtk_tree_model_get_flags): return GtkTreeModelFlags, not a guint (gtk_tree_path_prev): return gboolean not gint (gtk_tree_path_up): return gboolean not gint * gtk/gtktreemodel.h (struct _GtkTreeModelIface): make get_flags return GtkTreeModelFlags, not a guint * gtk/gtktreemodelsort.c (gtk_tree_model_sort_finalize): check that child model is non-null before unrefing it (g_value_int_compare_func): make this a qsort compare func, not a boolean predicate * gtk/gtktreemodelsort.h: rename gtk_tree_model_set_sort_column, (add -umn to the end), and mark it unimplemented (gtk_tree_model_sort_resort): remove, this wasn't implemented, and I don't see what it's for - doesn't the model always sort itself? (gtk_tree_model_sort_set_compare): this had the wrong signature * gtk/gtktreeviewcolumn.c (gtk_tree_view_column_set_attributes): Fix the docs to say that it destructively replaces existing attributes (previously said that it added attributes). (gtk_tree_view_column_set_visible): canonicalize bool before equality testing. Also, check for realization before hiding/showing the tree_column->window; if this window could exist before realization, then it's busted and needs fixing, we can't create GDK resources pre-realization. Also, remove superfluous queue_resize(), since set_size() does that for us. (gtk_tree_view_column_set_col_type): check realization before using tree_column->window * gtk/gtktreedatalist.c: fix filename in copyright notice
2001-01-01 19:01:54 +00:00
gboolean
gtk_tree_path_up (GtkTreePath *path)
{
g_return_val_if_fail (path != NULL, FALSE);
if (path->depth == 0)
return FALSE;
path->depth--;
return TRUE;
}
/**
* gtk_tree_path_down:
* @path: a #GtkTreePath-struct
*
* Moves @path to point to the first child of the current path.
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*/
void
gtk_tree_path_down (GtkTreePath *path)
{
g_return_if_fail (path != NULL);
gtk_tree_path_append_index (path, 0);
}
/**
* gtk_tree_iter_copy:
* @iter: a #GtkTreeIter-struct
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*
* Creates a dynamically allocated tree iterator as a copy of @iter.
*
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* This function is not intended for use in applications,
* because you can just copy the structs by value
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* (`GtkTreeIter new_iter = iter;`).
* You must free this iter with gtk_tree_iter_free().
*
* Returns: a newly-allocated copy of @iter
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*/
GtkTreeIter *
gtk_tree_iter_copy (GtkTreeIter *iter)
{
GtkTreeIter *retval;
g_return_val_if_fail (iter != NULL, NULL);
retval = g_slice_new (GtkTreeIter);
*retval = *iter;
return retval;
}
/**
* gtk_tree_iter_free:
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* @iter: a dynamically allocated tree iterator
*
* Frees an iterator that has been allocated by gtk_tree_iter_copy().
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*
* This function is mainly used for language bindings.
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*/
void
gtk_tree_iter_free (GtkTreeIter *iter)
{
g_return_if_fail (iter != NULL);
g_slice_free (GtkTreeIter, iter);
}
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G_DEFINE_BOXED_TYPE (GtkTreeIter, gtk_tree_iter,
gtk_tree_iter_copy,
gtk_tree_iter_free)
/**
* gtk_tree_model_get_flags:
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* @tree_model: a #GtkTreeModel
*
* Returns a set of flags supported by this interface.
*
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* The flags are a bitwise combination of #GtkTreeModelFlags.
* The flags supported should not change during the lifetime
* of the @tree_model.
*
* Returns: the flags supported by this interface
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*/
Adapt to GtkTreeSelection changes 2001-01-01 Havoc Pennington <hp@redhat.com> * gtk/gtktreeview.c: Adapt to GtkTreeSelection changes * gtk/gtktreeselection.c (_gtk_tree_selection_set_tree_view): don't fill in tree_view->priv->selection, kind of an unexpected side effect * gtk/gtkcellrenderertext.c: Remove definition of _ and include gtkintl.h * gtk/gtkcellrenderer.c: Remove definition of _ and include gtkintl.h (gtk_cell_renderer_get_property): remove calls to g_value_init * gtk/gtkcellrendererpixbuf.c: Remove definition of _ and include gtkintl.h * gtk/gtkcellrenderertextpixbuf.c: Remove definition of _ macro and include gtkintl.h (gtk_cell_renderer_text_pixbuf_class_init): remove spaces from property names * gtk/gtktreeselection.c (_gtk_tree_selection_new): rename, return GtkTreeSelection (_gtk_tree_selection_new_from_with_view): rename, return GtkTreeSelection (_gtk_tree_selection_set_tree_view): rename with uscore (gtk_tree_selection_get_selected): fill in the "model" out param first, so it gets filled in even if we return at the top of the function (gtk_tree_selection_real_select_all): add a comment and an else{} to clarify this a bit (gtk_tree_selection_real_unselect_all): add the same else{} * gtk/gtktreeselection.h: Rename new, new_with_tree_view, and set_tree_view to have underscore prefixes, move them to the private header, fix return type of new_with_tree_view (struct _GtkTreeSelection): mark struct fields private * gtk/gtktreemodel.c (gtk_tree_model_get_flags): return GtkTreeModelFlags, not a guint (gtk_tree_path_prev): return gboolean not gint (gtk_tree_path_up): return gboolean not gint * gtk/gtktreemodel.h (struct _GtkTreeModelIface): make get_flags return GtkTreeModelFlags, not a guint * gtk/gtktreemodelsort.c (gtk_tree_model_sort_finalize): check that child model is non-null before unrefing it (g_value_int_compare_func): make this a qsort compare func, not a boolean predicate * gtk/gtktreemodelsort.h: rename gtk_tree_model_set_sort_column, (add -umn to the end), and mark it unimplemented (gtk_tree_model_sort_resort): remove, this wasn't implemented, and I don't see what it's for - doesn't the model always sort itself? (gtk_tree_model_sort_set_compare): this had the wrong signature * gtk/gtktreeviewcolumn.c (gtk_tree_view_column_set_attributes): Fix the docs to say that it destructively replaces existing attributes (previously said that it added attributes). (gtk_tree_view_column_set_visible): canonicalize bool before equality testing. Also, check for realization before hiding/showing the tree_column->window; if this window could exist before realization, then it's busted and needs fixing, we can't create GDK resources pre-realization. Also, remove superfluous queue_resize(), since set_size() does that for us. (gtk_tree_view_column_set_col_type): check realization before using tree_column->window * gtk/gtktreedatalist.c: fix filename in copyright notice
2001-01-01 19:01:54 +00:00
GtkTreeModelFlags
gtk_tree_model_get_flags (GtkTreeModel *tree_model)
{
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GtkTreeModelIface *iface;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), 0);
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iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
if (iface->get_flags)
return (* iface->get_flags) (tree_model);
return 0;
}
/**
* gtk_tree_model_get_n_columns:
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* @tree_model: a #GtkTreeModel
*
Doc typo fix. (#68172) * gtk/gtksocket.c (gtk_socket_get_id): Doc typo fix. (#68172) * gtk/gtktreemodel.c (gtk_tree_path_is_descendant): Fix docs. * gtk/gtktreemodel.c (gtk_tree_model_rows_reordered): Document. * gtk/gtkwindow.c (gtk_window_remove_accel_group): Fix docs. * gtk/gtkrc.c (gtk_rc_get_style_by_paths), gtk/gtkwidget.c (gtk_widget_get_toplevel, gtk_widget_push_composite_child), gtk/gtkdialog.c (gtk_dialog_new_with_buttons, gtk_dialog_run): Keep gtk-doc from messing up the indentation of inline examples. * gtk/gtkmain.c, gtk/gtkrc.c: Consistently call g_getenv() instead of getenv(). * gtk/gtktreemodel.c, gtk/gtkaccelgroup.c, gtk/gtkclipboard.c, gtk/gtkdnd.c, gtk/gtkiconfactory.c, gtk/gtkrc.c, gtk/gtkstyle.c, gtk/gtkselection.c: Doc fixes. * gtk/gtkaccelmap.c (gtk_accel_map_add_filter, gtk_accel_map_foreach_unfiltered, gtk_accel_map_load_scanner): Document. * gtk/tmpl/gtksocket.sgml: Mention gtk_socket_get_id() instead of GTK_WINDOW_XWINDOW(). (#68172) * gtk/gtk-sections.txt: Move functions which are documented as "private" or "internal" into Private subsections. * gtk/tmpl/gtkdnd.sgml, gtk/tmpl/gtkobject.sgml, gtk/tmpl/gtkrc.sgml, gtk/tmpl/gtktooltips.sgml, gtk/tmpl/gtkwidget.sgml, gtk/tmpl/gtkclipboard.sgml, gtk/tmpl/gtkstyle.sgml, gtk/tmpl/gtkselection.sgml, gtk/tmpl/gtkfeatures.sgml: Minor markup fixes. * gtk/tmpl/gtksignal.sgml: Add link to GLib signal docs. * gtk/tmpl/gtkpreview.sgml, gtk/tmpl/gtktext.sgml, gtk/tmpl/gtktree.sgml: Remove "deprecated" from short desc. * gtk/tmpl/gtkrc.sgml: Correct names of default RC files.
2002-01-08 00:04:57 +00:00
* Returns the number of columns supported by @tree_model.
*
* Returns: the number of columns
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*/
gint
gtk_tree_model_get_n_columns (GtkTreeModel *tree_model)
{
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GtkTreeModelIface *iface;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), 0);
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iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
g_return_val_if_fail (iface->get_n_columns != NULL, 0);
return (* iface->get_n_columns) (tree_model);
}
/**
* gtk_tree_model_get_column_type:
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* @tree_model: a #GtkTreeModel
* @index_: the column index
*
* Returns the type of the column.
*
* Returns: the type of the column
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*/
GType
gtk_tree_model_get_column_type (GtkTreeModel *tree_model,
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gint index)
{
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GtkTreeModelIface *iface;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), G_TYPE_INVALID);
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iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
g_return_val_if_fail (iface->get_column_type != NULL, G_TYPE_INVALID);
g_return_val_if_fail (index >= 0, G_TYPE_INVALID);
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return (* iface->get_column_type) (tree_model, index);
}
/**
* gtk_tree_model_get_iter:
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* @tree_model: a #GtkTreeModel
* @iter: (out): the uninitialized #GtkTreeIter-struct
* @path: the #GtkTreePath-struct
*
* Sets @iter to a valid iterator pointing to @path. If @path does
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* not exist, @iter is set to an invalid iterator and %FALSE is returned.
*
* Returns: %TRUE, if @iter was set
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*/
gboolean
gtk_tree_model_get_iter (GtkTreeModel *tree_model,
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GtkTreeIter *iter,
GtkTreePath *path)
{
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GtkTreeModelIface *iface;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), FALSE);
g_return_val_if_fail (iter != NULL, FALSE);
g_return_val_if_fail (path != NULL, FALSE);
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iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
g_return_val_if_fail (iface->get_iter != NULL, FALSE);
g_return_val_if_fail (path->depth > 0, FALSE);
INITIALIZE_TREE_ITER (iter);
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return (* iface->get_iter) (tree_model, iter, path);
}
/**
* gtk_tree_model_get_iter_from_string:
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* @tree_model: a #GtkTreeModel
* @iter: (out): an uninitialized #GtkTreeIter-struct
* @path_string: a string representation of a #GtkTreePath-struct
*
* Sets @iter to a valid iterator pointing to @path_string, if it
* exists. Otherwise, @iter is left invalid and %FALSE is returned.
*
* Returns: %TRUE, if @iter was set
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*/
gboolean
gtk_tree_model_get_iter_from_string (GtkTreeModel *tree_model,
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GtkTreeIter *iter,
const gchar *path_string)
{
gboolean retval;
GtkTreePath *path;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), FALSE);
g_return_val_if_fail (iter != NULL, FALSE);
g_return_val_if_fail (path_string != NULL, FALSE);
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path = gtk_tree_path_new_from_string (path_string);
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g_return_val_if_fail (path != NULL, FALSE);
retval = gtk_tree_model_get_iter (tree_model, iter, path);
gtk_tree_path_free (path);
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return retval;
}
/**
* gtk_tree_model_get_string_from_iter:
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* @tree_model: a #GtkTreeModel
* @iter: a #GtkTreeIter-struct
*
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* Generates a string representation of the iter.
*
* This string is a : separated list of numbers.
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* For example, 4:10:0:3 would be an acceptable
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* return value for this string.
*
* Returns: a newly-allocated string.
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* Must be freed with g_free().
*/
gchar *
gtk_tree_model_get_string_from_iter (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
GtkTreePath *path;
gchar *ret;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), NULL);
g_return_val_if_fail (iter != NULL, NULL);
path = gtk_tree_model_get_path (tree_model, iter);
g_return_val_if_fail (path != NULL, NULL);
ret = gtk_tree_path_to_string (path);
gtk_tree_path_free (path);
return ret;
}
/**
* gtk_tree_model_get_iter_first:
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* @tree_model: a #GtkTreeModel
* @iter: (out): the uninitialized #GtkTreeIter-struct
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*
* Initializes @iter with the first iterator in the tree
* (the one at the path "0") and returns %TRUE. Returns
* %FALSE if the tree is empty.
*
* Returns: %TRUE, if @iter was set
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*/
gboolean
gtk_tree_model_get_iter_first (GtkTreeModel *tree_model,
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GtkTreeIter *iter)
{
GtkTreePath *path;
gboolean retval;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), FALSE);
g_return_val_if_fail (iter != NULL, FALSE);
path = gtk_tree_path_new_first ();
retval = gtk_tree_model_get_iter (tree_model, iter, path);
gtk_tree_path_free (path);
return retval;
}
/**
* gtk_tree_model_get_path:
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* @tree_model: a #GtkTreeModel
* @iter: the #GtkTreeIter-struct
*
* Returns a newly-created #GtkTreePath-struct referenced by @iter.
*
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* This path should be freed with gtk_tree_path_free().
*
* Returns: a newly-created #GtkTreePath-struct
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*/
GtkTreePath *
gtk_tree_model_get_path (GtkTreeModel *tree_model,
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GtkTreeIter *iter)
{
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GtkTreeModelIface *iface;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), NULL);
g_return_val_if_fail (iter != NULL, NULL);
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iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
g_return_val_if_fail (iface->get_path != NULL, NULL);
return (* iface->get_path) (tree_model, iter);
}
/**
* gtk_tree_model_get_value:
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* @tree_model: a #GtkTreeModel
* @iter: the #GtkTreeIter-struct
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* @column: the column to lookup the value at
* @value: (out) (transfer none): an empty #GValue to set
*
* Initializes and sets @value to that at @column.
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*
* When done with @value, g_value_unset() needs to be called
* to free any allocated memory.
*/
void
gtk_tree_model_get_value (GtkTreeModel *tree_model,
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GtkTreeIter *iter,
gint column,
GValue *value)
{
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GtkTreeModelIface *iface;
g_return_if_fail (GTK_IS_TREE_MODEL (tree_model));
g_return_if_fail (iter != NULL);
g_return_if_fail (value != NULL);
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iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
g_return_if_fail (iface->get_value != NULL);
(* iface->get_value) (tree_model, iter, column, value);
}
/**
* gtk_tree_model_iter_next:
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* @tree_model: a #GtkTreeModel
* @iter: (in): the #GtkTreeIter-struct
*
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* Sets @iter to point to the node following it at the current level.
*
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* If there is no next @iter, %FALSE is returned and @iter is set
* to be invalid.
*
* Returns: %TRUE if @iter has been changed to the next node
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*/
gboolean
gtk_tree_model_iter_next (GtkTreeModel *tree_model,
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GtkTreeIter *iter)
{
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GtkTreeModelIface *iface;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), FALSE);
g_return_val_if_fail (iter != NULL, FALSE);
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iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
g_return_val_if_fail (iface->iter_next != NULL, FALSE);
return (* iface->iter_next) (tree_model, iter);
}
static gboolean
gtk_tree_model_iter_previous_default (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
gboolean retval;
GtkTreePath *path;
path = gtk_tree_model_get_path (tree_model, iter);
if (path == NULL)
return FALSE;
retval = gtk_tree_path_prev (path) &&
gtk_tree_model_get_iter (tree_model, iter, path);
if (retval == FALSE)
iter->stamp = 0;
gtk_tree_path_free (path);
return retval;
}
/**
* gtk_tree_model_iter_previous:
* @tree_model: a #GtkTreeModel
* @iter: (in): the #GtkTreeIter-struct
*
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* Sets @iter to point to the previous node at the current level.
*
* If there is no previous @iter, %FALSE is returned and @iter is
* set to be invalid.
*
* Returns: %TRUE if @iter has been changed to the previous node
*/
gboolean
gtk_tree_model_iter_previous (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
gboolean retval;
GtkTreeModelIface *iface;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), FALSE);
g_return_val_if_fail (iter != NULL, FALSE);
iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
if (iface->iter_previous)
retval = (* iface->iter_previous) (tree_model, iter);
else
retval = gtk_tree_model_iter_previous_default (tree_model, iter);
return retval;
}
/**
* gtk_tree_model_iter_children:
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* @tree_model: a #GtkTreeModel
* @iter: (out): the new #GtkTreeIter-struct to be set to the child
* @parent: (allow-none): the #GtkTreeIter-struct, or %NULL
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*
* Sets @iter to point to the first child of @parent.
*
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* If @parent has no children, %FALSE is returned and @iter is
* set to be invalid. @parent will remain a valid node after this
* function has been called.
*
Minor documentation fixes 2002-08-10 Soren Sandmann <sandmann@daimi.au.dk> * docs/reference/gtk/tree_widget.sgml, docs/reference/gtk/tmpl/gtkdialog.sgml, docs/reference/gtk/tmpl/gtkentry.sgml, docs/reference/gtk/tmpl/gtkfilesel.sgml, docs/reference/gtk/tmpl/gtkfontsel.sgml, docs/reference/gtk/tmpl/gtkfontseldlg.sgml, docs/reference/gtk/tmpl/gtktreemodel.sgml, docs/reference/gtk/tmpl/gtkwidget.sgml, gdk/x11/gdkdisplay-x11.c, gtk/gtkbbox.c, gtk/gtkbox.c, gtk/gtkbutton.c, gtk/gtkcellrenderer.c, gtk/gtkcellrendererpixbuf.c, gtk/gtkcellrenderertext.c, gtk/gtkcheckmenuitem.c, gtk/gtkcontainer.c, gtk/gtkcurve.c, gtk/gtkdialog.h, gtk/gtkentry.c, gtk/gtkfilesel.c, gtk/gtkfontsel.c, gtk/gtkframe.c, gtk/gtkhandlebox.c, gtk/gtkiconfactory.c, gtk/gtkimage.c, gtk/gtkinvisible.c, gtk/gtkitemfactory.c, gtk/gtklabel.c, gtk/gtklayout.c, gtk/gtkmenu.c, gtk/gtkprogress.c, gtk/gtkprogressbar.c, gtk/gtkscrolledwindow.c, gtk/gtksizegroup.c, gtk/gtktable.c, gtk/gtktextiter.c, gtk/gtktexttag.c, gtk/gtktexttag.h, gtk/gtktextview.c, gtk/gtktogglebutton.c, gtk/gtktoolbar.c, gtk/gtktreemodel.c, gtk/gtktreeselection.c, gtk/gtktreestore.c, gtk/gtktreeview.c, gtk/gtktreeviewcolumn.c, gtk/gtkviewport.c, gtk/gtkwidget.c, gtk/gtkwidget.h, gtk/gtkwindow.c: Minor documentation fixes (#89254, patch from Brett Nash; #85809, patch from daten@dnetc.org; #76391, patch from Ross Burton; #74559, Manuel Clos; #73569, #72005, Alexey A. Malyshev; #70061, patch from Dennis Bj"orklund; #64566, #63388, #58328, #57499, #81007, #77349, Vitaly Tishkov; #78932, Vitaly Tishkov, patch from Ross Burton; #73306)
2002-08-10 09:55:41 +00:00
* If @parent is %NULL returns the first node, equivalent to
2014-02-04 23:21:13 +00:00
* `gtk_tree_model_get_iter_first (tree_model, iter);`
Minor documentation fixes 2002-08-10 Soren Sandmann <sandmann@daimi.au.dk> * docs/reference/gtk/tree_widget.sgml, docs/reference/gtk/tmpl/gtkdialog.sgml, docs/reference/gtk/tmpl/gtkentry.sgml, docs/reference/gtk/tmpl/gtkfilesel.sgml, docs/reference/gtk/tmpl/gtkfontsel.sgml, docs/reference/gtk/tmpl/gtkfontseldlg.sgml, docs/reference/gtk/tmpl/gtktreemodel.sgml, docs/reference/gtk/tmpl/gtkwidget.sgml, gdk/x11/gdkdisplay-x11.c, gtk/gtkbbox.c, gtk/gtkbox.c, gtk/gtkbutton.c, gtk/gtkcellrenderer.c, gtk/gtkcellrendererpixbuf.c, gtk/gtkcellrenderertext.c, gtk/gtkcheckmenuitem.c, gtk/gtkcontainer.c, gtk/gtkcurve.c, gtk/gtkdialog.h, gtk/gtkentry.c, gtk/gtkfilesel.c, gtk/gtkfontsel.c, gtk/gtkframe.c, gtk/gtkhandlebox.c, gtk/gtkiconfactory.c, gtk/gtkimage.c, gtk/gtkinvisible.c, gtk/gtkitemfactory.c, gtk/gtklabel.c, gtk/gtklayout.c, gtk/gtkmenu.c, gtk/gtkprogress.c, gtk/gtkprogressbar.c, gtk/gtkscrolledwindow.c, gtk/gtksizegroup.c, gtk/gtktable.c, gtk/gtktextiter.c, gtk/gtktexttag.c, gtk/gtktexttag.h, gtk/gtktextview.c, gtk/gtktogglebutton.c, gtk/gtktoolbar.c, gtk/gtktreemodel.c, gtk/gtktreeselection.c, gtk/gtktreestore.c, gtk/gtktreeview.c, gtk/gtktreeviewcolumn.c, gtk/gtkviewport.c, gtk/gtkwidget.c, gtk/gtkwidget.h, gtk/gtkwindow.c: Minor documentation fixes (#89254, patch from Brett Nash; #85809, patch from daten@dnetc.org; #76391, patch from Ross Burton; #74559, Manuel Clos; #73569, #72005, Alexey A. Malyshev; #70061, patch from Dennis Bj"orklund; #64566, #63388, #58328, #57499, #81007, #77349, Vitaly Tishkov; #78932, Vitaly Tishkov, patch from Ross Burton; #73306)
2002-08-10 09:55:41 +00:00
*
2016-03-11 17:29:51 +00:00
* Returns: %TRUE, if @iter has been set to the first child
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*/
gboolean
gtk_tree_model_iter_children (GtkTreeModel *tree_model,
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GtkTreeIter *iter,
GtkTreeIter *parent)
{
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GtkTreeModelIface *iface;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), FALSE);
g_return_val_if_fail (iter != NULL, FALSE);
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iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
g_return_val_if_fail (iface->iter_children != NULL, FALSE);
INITIALIZE_TREE_ITER (iter);
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return (* iface->iter_children) (tree_model, iter, parent);
}
/**
* gtk_tree_model_iter_has_child:
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* @tree_model: a #GtkTreeModel
* @iter: the #GtkTreeIter-struct to test for children
*
Doc typo fix. (#68172) * gtk/gtksocket.c (gtk_socket_get_id): Doc typo fix. (#68172) * gtk/gtktreemodel.c (gtk_tree_path_is_descendant): Fix docs. * gtk/gtktreemodel.c (gtk_tree_model_rows_reordered): Document. * gtk/gtkwindow.c (gtk_window_remove_accel_group): Fix docs. * gtk/gtkrc.c (gtk_rc_get_style_by_paths), gtk/gtkwidget.c (gtk_widget_get_toplevel, gtk_widget_push_composite_child), gtk/gtkdialog.c (gtk_dialog_new_with_buttons, gtk_dialog_run): Keep gtk-doc from messing up the indentation of inline examples. * gtk/gtkmain.c, gtk/gtkrc.c: Consistently call g_getenv() instead of getenv(). * gtk/gtktreemodel.c, gtk/gtkaccelgroup.c, gtk/gtkclipboard.c, gtk/gtkdnd.c, gtk/gtkiconfactory.c, gtk/gtkrc.c, gtk/gtkstyle.c, gtk/gtkselection.c: Doc fixes. * gtk/gtkaccelmap.c (gtk_accel_map_add_filter, gtk_accel_map_foreach_unfiltered, gtk_accel_map_load_scanner): Document. * gtk/tmpl/gtksocket.sgml: Mention gtk_socket_get_id() instead of GTK_WINDOW_XWINDOW(). (#68172) * gtk/gtk-sections.txt: Move functions which are documented as "private" or "internal" into Private subsections. * gtk/tmpl/gtkdnd.sgml, gtk/tmpl/gtkobject.sgml, gtk/tmpl/gtkrc.sgml, gtk/tmpl/gtktooltips.sgml, gtk/tmpl/gtkwidget.sgml, gtk/tmpl/gtkclipboard.sgml, gtk/tmpl/gtkstyle.sgml, gtk/tmpl/gtkselection.sgml, gtk/tmpl/gtkfeatures.sgml: Minor markup fixes. * gtk/tmpl/gtksignal.sgml: Add link to GLib signal docs. * gtk/tmpl/gtkpreview.sgml, gtk/tmpl/gtktext.sgml, gtk/tmpl/gtktree.sgml: Remove "deprecated" from short desc. * gtk/tmpl/gtkrc.sgml: Correct names of default RC files.
2002-01-08 00:04:57 +00:00
* Returns %TRUE if @iter has children, %FALSE otherwise.
*
* Returns: %TRUE if @iter has children
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*/
gboolean
gtk_tree_model_iter_has_child (GtkTreeModel *tree_model,
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GtkTreeIter *iter)
{
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GtkTreeModelIface *iface;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), FALSE);
g_return_val_if_fail (iter != NULL, FALSE);
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iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
g_return_val_if_fail (iface->iter_has_child != NULL, FALSE);
return (* iface->iter_has_child) (tree_model, iter);
}
/**
* gtk_tree_model_iter_n_children:
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* @tree_model: a #GtkTreeModel
* @iter: (allow-none): the #GtkTreeIter-struct, or %NULL
*
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* Returns the number of children that @iter has.
*
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* As a special case, if @iter is %NULL, then the number
* of toplevel nodes is returned.
*
* Returns: the number of children of @iter
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*/
gint
gtk_tree_model_iter_n_children (GtkTreeModel *tree_model,
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GtkTreeIter *iter)
{
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GtkTreeModelIface *iface;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), 0);
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iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
g_return_val_if_fail (iface->iter_n_children != NULL, 0);
return (* iface->iter_n_children) (tree_model, iter);
}
/**
* gtk_tree_model_iter_nth_child:
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* @tree_model: a #GtkTreeModel
* @iter: (out): the #GtkTreeIter-struct to set to the nth child
* @parent: (allow-none): the #GtkTreeIter-struct to get the child from, or %NULL.
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* @n: the index of the desired child
*
* Sets @iter to be the child of @parent, using the given index.
*
* The first index is 0. If @n is too big, or @parent has no children,
* @iter is set to an invalid iterator and %FALSE is returned. @parent
* will remain a valid node after this function has been called. As a
* special case, if @parent is %NULL, then the @n-th root node
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* is set.
*
* Returns: %TRUE, if @parent has an @n-th child
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*/
gboolean
gtk_tree_model_iter_nth_child (GtkTreeModel *tree_model,
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GtkTreeIter *iter,
GtkTreeIter *parent,
gint n)
{
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GtkTreeModelIface *iface;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), FALSE);
g_return_val_if_fail (iter != NULL, FALSE);
g_return_val_if_fail (n >= 0, FALSE);
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iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
g_return_val_if_fail (iface->iter_nth_child != NULL, FALSE);
INITIALIZE_TREE_ITER (iter);
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return (* iface->iter_nth_child) (tree_model, iter, parent, n);
}
/**
* gtk_tree_model_iter_parent:
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* @tree_model: a #GtkTreeModel
* @iter: (out): the new #GtkTreeIter-struct to set to the parent
* @child: the #GtkTreeIter-struct
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*
* Sets @iter to be the parent of @child.
*
2014-02-07 18:32:47 +00:00
* If @child is at the toplevel, and doesnt have a parent, then
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* @iter is set to an invalid iterator and %FALSE is returned.
* @child will remain a valid node after this function has been
* called.
*
* @iter will be initialized before the lookup is performed, so @child
* and @iter cannot point to the same memory location.
*
* Returns: %TRUE, if @iter is set to the parent of @child
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*/
gboolean
gtk_tree_model_iter_parent (GtkTreeModel *tree_model,
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GtkTreeIter *iter,
GtkTreeIter *child)
{
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GtkTreeModelIface *iface;
g_return_val_if_fail (GTK_IS_TREE_MODEL (tree_model), FALSE);
g_return_val_if_fail (iter != NULL, FALSE);
g_return_val_if_fail (child != NULL, FALSE);
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2005-05-21 01:05:14 +00:00
iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
g_return_val_if_fail (iface->iter_parent != NULL, FALSE);
INITIALIZE_TREE_ITER (iter);
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return (* iface->iter_parent) (tree_model, iter, child);
}
/**
* gtk_tree_model_ref_node:
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* @tree_model: a #GtkTreeModel
* @iter: the #GtkTreeIter-struct
*
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* 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.
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*
* This function is primarily meant as a way for views to let
* caching models know when nodes are being displayed (and hence,
* whether or not to cache that node). Being displayed means a node
* is in an expanded branch, regardless of whether the node is currently
* visible in the viewport. 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
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* every current view.
*
* A model should be expected to be able to get an iter independent
* of its reffed state.
*/
void
gtk_tree_model_ref_node (GtkTreeModel *tree_model,
2011-01-12 23:48:20 +00:00
GtkTreeIter *iter)
{
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GtkTreeModelIface *iface;
g_return_if_fail (GTK_IS_TREE_MODEL (tree_model));
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iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
if (iface->ref_node)
(* iface->ref_node) (tree_model, iter);
}
/**
* gtk_tree_model_unref_node:
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* @tree_model: a #GtkTreeModel
* @iter: the #GtkTreeIter-struct
*
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* 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 gtk_tree_model_ref_node().
*
* Please note that nodes that are deleted are not unreffed.
2011-01-12 23:48:20 +00:00
*/
void
gtk_tree_model_unref_node (GtkTreeModel *tree_model,
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GtkTreeIter *iter)
{
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GtkTreeModelIface *iface;
g_return_if_fail (GTK_IS_TREE_MODEL (tree_model));
g_return_if_fail (iter != NULL);
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iface = GTK_TREE_MODEL_GET_IFACE (tree_model);
if (iface->unref_node)
(* iface->unref_node) (tree_model, iter);
}
/**
* gtk_tree_model_get:
* @tree_model: a #GtkTreeModel
* @iter: a row in @tree_model
* @...: pairs of column number and value return locations,
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* terminated by -1
*
* Gets the value of one or more cells in the row referenced by @iter.
* The variable argument list should contain integer column numbers,
* each column number followed by a place to store the value being
* retrieved. The list is terminated by a -1. For example, to get a
* value from column 0 with type %G_TYPE_STRING, you would
* write: `gtk_tree_model_get (model, iter, 0, &place_string_here, -1)`,
2014-02-04 23:21:13 +00:00
* where `place_string_here` is a #gchararray
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* to be filled with the string.
*
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* Returned values with type %G_TYPE_OBJECT have to be unreferenced,
* values with type %G_TYPE_STRING or %G_TYPE_BOXED have to be freed.
* Other values are passed by value.
*/
void
gtk_tree_model_get (GtkTreeModel *tree_model,
2011-01-12 23:48:20 +00:00
GtkTreeIter *iter,
...)
{
va_list var_args;
g_return_if_fail (GTK_IS_TREE_MODEL (tree_model));
g_return_if_fail (iter != NULL);
va_start (var_args, iter);
gtk_tree_model_get_valist (tree_model, iter, var_args);
va_end (var_args);
}
/**
* gtk_tree_model_get_valist:
* @tree_model: a #GtkTreeModel
* @iter: a row in @tree_model
* @var_args: va_list of column/return location pairs
*
* See gtk_tree_model_get(), this version takes a va_list
Doc typo fix. (#68172) * gtk/gtksocket.c (gtk_socket_get_id): Doc typo fix. (#68172) * gtk/gtktreemodel.c (gtk_tree_path_is_descendant): Fix docs. * gtk/gtktreemodel.c (gtk_tree_model_rows_reordered): Document. * gtk/gtkwindow.c (gtk_window_remove_accel_group): Fix docs. * gtk/gtkrc.c (gtk_rc_get_style_by_paths), gtk/gtkwidget.c (gtk_widget_get_toplevel, gtk_widget_push_composite_child), gtk/gtkdialog.c (gtk_dialog_new_with_buttons, gtk_dialog_run): Keep gtk-doc from messing up the indentation of inline examples. * gtk/gtkmain.c, gtk/gtkrc.c: Consistently call g_getenv() instead of getenv(). * gtk/gtktreemodel.c, gtk/gtkaccelgroup.c, gtk/gtkclipboard.c, gtk/gtkdnd.c, gtk/gtkiconfactory.c, gtk/gtkrc.c, gtk/gtkstyle.c, gtk/gtkselection.c: Doc fixes. * gtk/gtkaccelmap.c (gtk_accel_map_add_filter, gtk_accel_map_foreach_unfiltered, gtk_accel_map_load_scanner): Document. * gtk/tmpl/gtksocket.sgml: Mention gtk_socket_get_id() instead of GTK_WINDOW_XWINDOW(). (#68172) * gtk/gtk-sections.txt: Move functions which are documented as "private" or "internal" into Private subsections. * gtk/tmpl/gtkdnd.sgml, gtk/tmpl/gtkobject.sgml, gtk/tmpl/gtkrc.sgml, gtk/tmpl/gtktooltips.sgml, gtk/tmpl/gtkwidget.sgml, gtk/tmpl/gtkclipboard.sgml, gtk/tmpl/gtkstyle.sgml, gtk/tmpl/gtkselection.sgml, gtk/tmpl/gtkfeatures.sgml: Minor markup fixes. * gtk/tmpl/gtksignal.sgml: Add link to GLib signal docs. * gtk/tmpl/gtkpreview.sgml, gtk/tmpl/gtktext.sgml, gtk/tmpl/gtktree.sgml: Remove "deprecated" from short desc. * gtk/tmpl/gtkrc.sgml: Correct names of default RC files.
2002-01-08 00:04:57 +00:00
* for language bindings to use.
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*/
void
gtk_tree_model_get_valist (GtkTreeModel *tree_model,
GtkTreeIter *iter,
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va_list var_args)
{
gint column;
g_return_if_fail (GTK_IS_TREE_MODEL (tree_model));
g_return_if_fail (iter != NULL);
column = va_arg (var_args, gint);
while (column != -1)
{
GValue value = G_VALUE_INIT;
gchar *error = NULL;
if (column >= gtk_tree_model_get_n_columns (tree_model))
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{
g_warning ("%s: Invalid column number %d accessed (remember to end your list of columns with a -1)", G_STRLOC, column);
break;
}
gtk_tree_model_get_value (GTK_TREE_MODEL (tree_model), iter, column, &value);
G_VALUE_LCOPY (&value, var_args, 0, &error);
if (error)
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{
g_warning ("%s: %s", G_STRLOC, error);
g_free (error);
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/* we purposely leak the value here, it might not be
* in a sane state if an error condition occurred
*/
break;
}
g_value_unset (&value);
column = va_arg (var_args, gint);
}
}
/**
* gtk_tree_model_row_changed:
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* @tree_model: a #GtkTreeModel
* @path: a #GtkTreePath-struct pointing to the changed row
* @iter: a valid #GtkTreeIter-struct pointing to the changed row
2011-01-12 23:48:20 +00:00
*
* Emits the #GtkTreeModel::row-changed signal on @tree_model.
*/
void
gtk_tree_model_row_changed (GtkTreeModel *tree_model,
2011-01-12 23:48:20 +00:00
GtkTreePath *path,
GtkTreeIter *iter)
{
g_return_if_fail (GTK_IS_TREE_MODEL (tree_model));
g_return_if_fail (path != NULL);
g_return_if_fail (iter != NULL);
g_signal_emit (tree_model, tree_model_signals[ROW_CHANGED], 0, path, iter);
}
/**
* gtk_tree_model_row_inserted:
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* @tree_model: a #GtkTreeModel
* @path: a #GtkTreePath-struct pointing to the inserted row
* @iter: a valid #GtkTreeIter-struct pointing to the inserted row
2011-01-12 23:48:20 +00:00
*
* Emits the #GtkTreeModel::row-inserted signal on @tree_model.
*/
void
gtk_tree_model_row_inserted (GtkTreeModel *tree_model,
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GtkTreePath *path,
GtkTreeIter *iter)
{
g_return_if_fail (GTK_IS_TREE_MODEL (tree_model));
g_return_if_fail (path != NULL);
g_return_if_fail (iter != NULL);
g_signal_emit (tree_model, tree_model_signals[ROW_INSERTED], 0, path, iter);
}
/**
* gtk_tree_model_row_has_child_toggled:
2011-01-12 23:48:20 +00:00
* @tree_model: a #GtkTreeModel
* @path: a #GtkTreePath-struct pointing to the changed row
* @iter: a valid #GtkTreeIter-struct pointing to the changed row
2011-01-12 23:48:20 +00:00
*
* Emits the #GtkTreeModel::row-has-child-toggled signal on
* @tree_model. This should be called by models after the child
* state of a node changes.
*/
void
gtk_tree_model_row_has_child_toggled (GtkTreeModel *tree_model,
2011-01-12 23:48:20 +00:00
GtkTreePath *path,
GtkTreeIter *iter)
{
g_return_if_fail (GTK_IS_TREE_MODEL (tree_model));
g_return_if_fail (path != NULL);
g_return_if_fail (iter != NULL);
g_signal_emit (tree_model, tree_model_signals[ROW_HAS_CHILD_TOGGLED], 0, path, iter);
}
/**
* gtk_tree_model_row_deleted:
2011-01-12 23:48:20 +00:00
* @tree_model: a #GtkTreeModel
* @path: a #GtkTreePath-struct pointing to the previous location of
2011-01-12 23:48:20 +00:00
* the deleted row
*
* Emits the #GtkTreeModel::row-deleted signal on @tree_model.
*
* This should be called by models after a row has been removed.
* The location pointed to by @path should be the location that
* the row previously was at. It may not be a valid location anymore.
*
* Nodes that are deleted are not unreffed, this means that any
* outstanding references on the deleted node should not be released.
2011-01-12 23:48:20 +00:00
*/
void
gtk_tree_model_row_deleted (GtkTreeModel *tree_model,
2011-01-12 23:48:20 +00:00
GtkTreePath *path)
{
g_return_if_fail (GTK_IS_TREE_MODEL (tree_model));
g_return_if_fail (path != NULL);
g_signal_emit (tree_model, tree_model_signals[ROW_DELETED], 0, path);
}
Doc typo fix. (#68172) * gtk/gtksocket.c (gtk_socket_get_id): Doc typo fix. (#68172) * gtk/gtktreemodel.c (gtk_tree_path_is_descendant): Fix docs. * gtk/gtktreemodel.c (gtk_tree_model_rows_reordered): Document. * gtk/gtkwindow.c (gtk_window_remove_accel_group): Fix docs. * gtk/gtkrc.c (gtk_rc_get_style_by_paths), gtk/gtkwidget.c (gtk_widget_get_toplevel, gtk_widget_push_composite_child), gtk/gtkdialog.c (gtk_dialog_new_with_buttons, gtk_dialog_run): Keep gtk-doc from messing up the indentation of inline examples. * gtk/gtkmain.c, gtk/gtkrc.c: Consistently call g_getenv() instead of getenv(). * gtk/gtktreemodel.c, gtk/gtkaccelgroup.c, gtk/gtkclipboard.c, gtk/gtkdnd.c, gtk/gtkiconfactory.c, gtk/gtkrc.c, gtk/gtkstyle.c, gtk/gtkselection.c: Doc fixes. * gtk/gtkaccelmap.c (gtk_accel_map_add_filter, gtk_accel_map_foreach_unfiltered, gtk_accel_map_load_scanner): Document. * gtk/tmpl/gtksocket.sgml: Mention gtk_socket_get_id() instead of GTK_WINDOW_XWINDOW(). (#68172) * gtk/gtk-sections.txt: Move functions which are documented as "private" or "internal" into Private subsections. * gtk/tmpl/gtkdnd.sgml, gtk/tmpl/gtkobject.sgml, gtk/tmpl/gtkrc.sgml, gtk/tmpl/gtktooltips.sgml, gtk/tmpl/gtkwidget.sgml, gtk/tmpl/gtkclipboard.sgml, gtk/tmpl/gtkstyle.sgml, gtk/tmpl/gtkselection.sgml, gtk/tmpl/gtkfeatures.sgml: Minor markup fixes. * gtk/tmpl/gtksignal.sgml: Add link to GLib signal docs. * gtk/tmpl/gtkpreview.sgml, gtk/tmpl/gtktext.sgml, gtk/tmpl/gtktree.sgml: Remove "deprecated" from short desc. * gtk/tmpl/gtkrc.sgml: Correct names of default RC files.
2002-01-08 00:04:57 +00:00
/**
* gtk_tree_model_rows_reordered: (skip)
2011-01-12 23:48:20 +00:00
* @tree_model: a #GtkTreeModel
* @path: a #GtkTreePath-struct pointing to the tree node whose children
2011-01-12 23:48:20 +00:00
* have been reordered
* @iter: a valid #GtkTreeIter-struct pointing to the node whose children
2011-01-12 23:48:20 +00:00
* have been reordered, or %NULL if the depth of @path is 0
* @new_order: an array of integers mapping the current position of
* each child to its old position before the re-ordering,
2014-02-04 23:21:13 +00:00
* i.e. @new_order`[newpos] = oldpos`
2011-01-12 23:48:20 +00:00
*
* Emits the #GtkTreeModel::rows-reordered signal on @tree_model.
*
* This should be called by models when their rows have been
* reordered.
*/
void
gtk_tree_model_rows_reordered (GtkTreeModel *tree_model,
2011-01-12 23:48:20 +00:00
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order)
{
g_return_if_fail (GTK_IS_TREE_MODEL (tree_model));
g_return_if_fail (new_order != NULL);
g_signal_emit (tree_model, tree_model_signals[ROWS_REORDERED], 0, path, iter, new_order);
}
/**
2013-10-09 18:09:35 +00:00
* gtk_tree_model_rows_reordered_with_length: (rename-to gtk_tree_model_rows_reordered)
* @tree_model: a #GtkTreeModel
* @path: a #GtkTreePath-struct pointing to the tree node whose children
* have been reordered
* @iter: (allow-none): a valid #GtkTreeIter-struct pointing to the node
* whose children have been reordered, or %NULL if the depth
* of @path is 0
* @new_order: (array length=length): an array of integers
* mapping the current position of each child to its old
* position before the re-ordering,
2014-02-04 23:21:13 +00:00
* i.e. @new_order`[newpos] = oldpos`
* @length: length of @new_order array
*
* Emits the #GtkTreeModel::rows-reordered signal on @tree_model.
*
* This should be called by models when their rows have been
* reordered.
*/
void
gtk_tree_model_rows_reordered_with_length (GtkTreeModel *tree_model,
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order,
gint length)
{
g_return_if_fail (GTK_IS_TREE_MODEL (tree_model));
g_return_if_fail (new_order != NULL);
g_return_if_fail (length == gtk_tree_model_iter_n_children (tree_model, iter));
g_signal_emit (tree_model, tree_model_signals[ROWS_REORDERED], 0, path, iter, new_order);
}
static gboolean
gtk_tree_model_foreach_helper (GtkTreeModel *model,
2011-01-12 23:48:20 +00:00
GtkTreeIter *iter,
GtkTreePath *path,
GtkTreeModelForeachFunc func,
gpointer user_data)
{
gboolean iters_persist;
iters_persist = gtk_tree_model_get_flags (model) & GTK_TREE_MODEL_ITERS_PERSIST;
do
{
GtkTreeIter child;
if ((* func) (model, path, iter, user_data))
2011-01-12 23:48:20 +00:00
return TRUE;
if (!iters_persist)
{
if (!gtk_tree_model_get_iter (model, iter, path))
return TRUE;
}
if (gtk_tree_model_iter_children (model, &child, iter))
2011-01-12 23:48:20 +00:00
{
gtk_tree_path_down (path);
if (gtk_tree_model_foreach_helper (model, &child, path, func, user_data))
return TRUE;
gtk_tree_path_up (path);
}
gtk_tree_path_next (path);
}
while (gtk_tree_model_iter_next (model, iter));
return FALSE;
}
/**
* gtk_tree_model_foreach:
2011-01-12 23:48:20 +00:00
* @model: a #GtkTreeModel
* @func: (scope call): a function to be called on each row
2020-01-13 01:26:50 +00:00
* @user_data: (closure): user data to passed to @func
2010-09-21 04:18:11 +00:00
*
* Calls func on each node in model in a depth-first fashion.
2011-01-12 23:48:20 +00:00
*
* If @func returns %TRUE, then the tree ceases to be walked,
* and gtk_tree_model_foreach() returns.
*/
void
gtk_tree_model_foreach (GtkTreeModel *model,
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GtkTreeModelForeachFunc func,
gpointer user_data)
{
GtkTreePath *path;
GtkTreeIter iter;
g_return_if_fail (GTK_IS_TREE_MODEL (model));
g_return_if_fail (func != NULL);
path = gtk_tree_path_new_first ();
if (!gtk_tree_model_get_iter (model, &iter, path))
{
gtk_tree_path_free (path);
return;
}
gtk_tree_model_foreach_helper (model, &iter, path, func, user_data);
gtk_tree_path_free (path);
}
/*
* GtkTreeRowReference
*/
static void gtk_tree_row_reference_unref_path (GtkTreePath *path,
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GtkTreeModel *model,
gint depth);
2010-04-27 11:31:23 +00:00
G_DEFINE_BOXED_TYPE (GtkTreeRowReference, gtk_tree_row_reference,
gtk_tree_row_reference_copy,
gtk_tree_row_reference_free)
struct _GtkTreeRowReference
{
GObject *proxy;
GtkTreeModel *model;
GtkTreePath *path;
};
static void
release_row_references (gpointer data)
{
RowRefList *refs = data;
GSList *tmp_list = NULL;
tmp_list = refs->list;
while (tmp_list != NULL)
{
GtkTreeRowReference *reference = tmp_list->data;
if (reference->proxy == (GObject *)reference->model)
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reference->model = NULL;
reference->proxy = NULL;
/* we don't free the reference, users are responsible for that. */
tmp_list = tmp_list->next;
}
g_slist_free (refs->list);
g_free (refs);
}
static void
gtk_tree_row_ref_inserted (RowRefList *refs,
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GtkTreePath *path,
GtkTreeIter *iter)
{
GSList *tmp_list;
if (refs == NULL)
return;
/* This function corrects the path stored in the reference to
2011-01-12 23:48:20 +00:00
* account for an insertion. Note that it's called _after_ the
* insertion with the path to the newly-inserted row. Which means
* that the inserted path is in a different "coordinate system" than
* the old path (e.g. if the inserted path was just before the old
* path, then inserted path and old path will be the same, and old
* path must be moved down one).
*/
tmp_list = refs->list;
while (tmp_list != NULL)
{
GtkTreeRowReference *reference = tmp_list->data;
if (reference->path == NULL)
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goto done;
if (reference->path->depth >= path->depth)
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{
gint i;
gboolean ancestor = TRUE;
for (i = 0; i < path->depth - 1; i ++)
{
if (path->indices[i] != reference->path->indices[i])
{
ancestor = FALSE;
break;
}
}
if (ancestor == FALSE)
goto done;
if (path->indices[path->depth-1] <= reference->path->indices[path->depth-1])
reference->path->indices[path->depth-1] += 1;
}
done:
tmp_list = tmp_list->next;
}
}
static void
gtk_tree_row_ref_deleted (RowRefList *refs,
2011-01-12 23:48:20 +00:00
GtkTreePath *path)
{
GSList *tmp_list;
if (refs == NULL)
return;
/* This function corrects the path stored in the reference to
* account for a deletion. Note that it's called _after_ the
* deletion with the old path of the just-deleted row. Which means
* that the deleted path is the same now-defunct "coordinate system"
* as the path saved in the reference, which is what we want to fix.
*/
tmp_list = refs->list;
while (tmp_list != NULL)
{
GtkTreeRowReference *reference = tmp_list->data;
if (reference->path)
2011-01-12 23:48:20 +00:00
{
gint i;
if (path->depth > reference->path->depth)
goto next;
for (i = 0; i < path->depth - 1; i++)
{
if (path->indices[i] != reference->path->indices[i])
goto next;
}
/* We know it affects us. */
if (path->indices[i] == reference->path->indices[i])
{
if (reference->path->depth > path->depth)
/* some parent was deleted, trying to unref any node
* between the deleted parent and the node the reference
* is pointing to is bad, as those nodes are already gone.
*/
gtk_tree_row_reference_unref_path (reference->path, reference->model, path->depth - 1);
else
gtk_tree_row_reference_unref_path (reference->path, reference->model, reference->path->depth - 1);
gtk_tree_path_free (reference->path);
reference->path = NULL;
}
else if (path->indices[i] < reference->path->indices[i])
{
reference->path->indices[path->depth-1]-=1;
}
}
next:
tmp_list = tmp_list->next;
}
}
static void
gtk_tree_row_ref_reordered (RowRefList *refs,
2011-01-12 23:48:20 +00:00
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order)
{
GSList *tmp_list;
gint length;
if (refs == NULL)
return;
tmp_list = refs->list;
while (tmp_list != NULL)
{
GtkTreeRowReference *reference = tmp_list->data;
length = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (reference->model), iter);
if (length < 2)
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return;
if ((reference->path) &&
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(gtk_tree_path_is_ancestor (path, reference->path)))
{
gint ref_depth = gtk_tree_path_get_depth (reference->path);
gint depth = gtk_tree_path_get_depth (path);
if (ref_depth > depth)
{
gint i;
gint *indices = gtk_tree_path_get_indices (reference->path);
for (i = 0; i < length; i++)
{
if (new_order[i] == indices[depth])
{
indices[depth] = i;
break;
}
}
}
}
tmp_list = tmp_list->next;
}
}
2011-01-12 23:48:20 +00:00
/* We do this recursively so that we can unref children nodes
* before their parent
*/
static void
gtk_tree_row_reference_unref_path_helper (GtkTreePath *path,
2011-01-12 23:48:20 +00:00
GtkTreeModel *model,
GtkTreeIter *parent_iter,
gint depth,
gint current_depth)
{
GtkTreeIter iter;
if (depth == current_depth)
return;
gtk_tree_model_iter_nth_child (model, &iter, parent_iter, path->indices[current_depth]);
gtk_tree_row_reference_unref_path_helper (path, model, &iter, depth, current_depth + 1);
gtk_tree_model_unref_node (model, &iter);
}
static void
gtk_tree_row_reference_unref_path (GtkTreePath *path,
2011-01-12 23:48:20 +00:00
GtkTreeModel *model,
gint depth)
{
GtkTreeIter iter;
if (depth <= 0)
return;
2011-01-12 23:48:20 +00:00
gtk_tree_model_iter_nth_child (model, &iter, NULL, path->indices[0]);
gtk_tree_row_reference_unref_path_helper (path, model, &iter, depth, 1);
gtk_tree_model_unref_node (model, &iter);
}
/**
* gtk_tree_row_reference_new:
2011-01-12 23:48:20 +00:00
* @model: a #GtkTreeModel
* @path: a valid #GtkTreePath-struct to monitor
2011-01-12 23:48:20 +00:00
*
* Creates a row reference based on @path.
*
* This reference will keep pointing to the node pointed to
* by @path, so long as it exists. Any changes that occur on @model are
* propagated, and the path is updated appropriately. If
2014-02-07 18:32:47 +00:00
* @path isnt a valid path in @model, then %NULL is returned.
2011-01-12 23:48:20 +00:00
*
* Returns: a newly allocated #GtkTreeRowReference, or %NULL
2011-01-12 23:48:20 +00:00
*/
GtkTreeRowReference *
gtk_tree_row_reference_new (GtkTreeModel *model,
GtkTreePath *path)
{
g_return_val_if_fail (GTK_IS_TREE_MODEL (model), NULL);
g_return_val_if_fail (path != NULL, NULL);
/* We use the model itself as the proxy object; and call
* gtk_tree_row_reference_inserted(), etc, in the
* class closure (default handler) marshalers for the signal.
2011-01-12 23:48:20 +00:00
*/
return gtk_tree_row_reference_new_proxy (G_OBJECT (model), model, path);
}
/**
* gtk_tree_row_reference_new_proxy:
2011-01-12 23:48:20 +00:00
* @proxy: a proxy #GObject
* @model: a #GtkTreeModel
* @path: a valid #GtkTreePath-struct to monitor
2011-01-12 23:48:20 +00:00
*
* You do not need to use this function.
*
* Creates a row reference based on @path.
*
* This reference will keep pointing to the node pointed to
2014-02-07 18:32:47 +00:00
* by @path, so long as it exists. If @path isnt a valid
2011-01-12 23:48:20 +00:00
* path in @model, then %NULL is returned. However, unlike
* references created with gtk_tree_row_reference_new(), it
* does not listen to the model for changes. The creator of
* the row reference must do this explicitly using
* gtk_tree_row_reference_inserted(), gtk_tree_row_reference_deleted(),
* gtk_tree_row_reference_reordered().
2011-01-12 23:48:20 +00:00
*
* These functions must be called exactly once per proxy when the
* corresponding signal on the model is emitted. This single call
* updates all row references for that proxy. Since built-in GTK+
* objects like #GtkTreeView already use this mechanism internally,
* using them as the proxy object will produce unpredictable results.
* Further more, passing the same object as @model and @proxy
2014-02-07 18:32:47 +00:00
* doesnt work for reasons of internal implementation.
*
2011-01-12 23:48:20 +00:00
* This type of row reference is primarily meant by structures that
* need to carefully monitor exactly when a row reference updates
* itself, and is not generally needed by most applications.
*
* Returns: a newly allocated #GtkTreeRowReference, or %NULL
2011-01-12 23:48:20 +00:00
*/
GtkTreeRowReference *
gtk_tree_row_reference_new_proxy (GObject *proxy,
2011-01-12 23:48:20 +00:00
GtkTreeModel *model,
GtkTreePath *path)
{
GtkTreeRowReference *reference;
RowRefList *refs;
GtkTreeIter parent_iter;
gint i;
g_return_val_if_fail (G_IS_OBJECT (proxy), NULL);
g_return_val_if_fail (GTK_IS_TREE_MODEL (model), NULL);
g_return_val_if_fail (path != NULL, NULL);
g_return_val_if_fail (path->depth > 0, NULL);
/* check that the path is valid */
if (gtk_tree_model_get_iter (model, &parent_iter, path) == FALSE)
return NULL;
/* Now we want to ref every node */
gtk_tree_model_iter_nth_child (model, &parent_iter, NULL, path->indices[0]);
gtk_tree_model_ref_node (model, &parent_iter);
for (i = 1; i < path->depth; i++)
{
GtkTreeIter iter;
gtk_tree_model_iter_nth_child (model, &iter, &parent_iter, path->indices[i]);
gtk_tree_model_ref_node (model, &iter);
parent_iter = iter;
}
/* Make the row reference */
reference = g_new (GtkTreeRowReference, 1);
g_object_ref (proxy);
g_object_ref (model);
reference->proxy = proxy;
reference->model = model;
reference->path = gtk_tree_path_copy (path);
refs = g_object_get_data (G_OBJECT (proxy), ROW_REF_DATA_STRING);
if (refs == NULL)
{
refs = g_new (RowRefList, 1);
refs->list = NULL;
g_object_set_data_full (G_OBJECT (proxy),
2011-01-12 23:48:20 +00:00
I_(ROW_REF_DATA_STRING),
refs, release_row_references);
}
refs->list = g_slist_prepend (refs->list, reference);
return reference;
}
/**
* gtk_tree_row_reference_get_path:
2011-01-12 23:48:20 +00:00
* @reference: a #GtkTreeRowReference
*
* Returns a path that the row reference currently points to,
* or %NULL if the path pointed to is no longer valid.
*
* Returns: (nullable) (transfer full): a current path, or %NULL
2011-01-12 23:48:20 +00:00
*/
GtkTreePath *
gtk_tree_row_reference_get_path (GtkTreeRowReference *reference)
{
g_return_val_if_fail (reference != NULL, NULL);
if (reference->proxy == NULL)
return NULL;
if (reference->path == NULL)
return NULL;
return gtk_tree_path_copy (reference->path);
}
/**
* gtk_tree_row_reference_get_model:
2011-01-12 23:48:20 +00:00
* @reference: a #GtkTreeRowReference
*
* Returns the model that the row reference is monitoring.
*
* Returns: (transfer none): the model
*/
GtkTreeModel *
gtk_tree_row_reference_get_model (GtkTreeRowReference *reference)
{
g_return_val_if_fail (reference != NULL, NULL);
return reference->model;
}
/**
* gtk_tree_row_reference_valid:
2011-01-12 23:48:20 +00:00
* @reference: (allow-none): a #GtkTreeRowReference, or %NULL
*
* Returns %TRUE if the @reference is non-%NULL and refers to
* a current valid path.
*
* Returns: %TRUE if @reference points to a valid path
2011-01-12 23:48:20 +00:00
*/
gboolean
gtk_tree_row_reference_valid (GtkTreeRowReference *reference)
{
if (reference == NULL || reference->path == NULL)
return FALSE;
return TRUE;
}
2002-11-28 00:33:17 +00:00
/**
* gtk_tree_row_reference_copy:
* @reference: a #GtkTreeRowReference
2011-01-12 23:48:20 +00:00
*
2002-11-28 00:33:17 +00:00
* Copies a #GtkTreeRowReference.
2011-01-12 23:48:20 +00:00
*
* Returns: a copy of @reference
2011-01-12 23:48:20 +00:00
*/
GtkTreeRowReference *
gtk_tree_row_reference_copy (GtkTreeRowReference *reference)
{
return gtk_tree_row_reference_new_proxy (reference->proxy,
2011-01-12 23:48:20 +00:00
reference->model,
reference->path);
}
/**
* gtk_tree_row_reference_free:
2011-01-12 23:48:20 +00:00
* @reference: (allow-none): a #GtkTreeRowReference, or %NULL
*
* Frees @reference. @reference may be %NULL
2011-01-12 23:48:20 +00:00
*/
void
gtk_tree_row_reference_free (GtkTreeRowReference *reference)
{
RowRefList *refs;
if (reference == NULL)
return;
refs = g_object_get_data (G_OBJECT (reference->proxy), ROW_REF_DATA_STRING);
if (refs == NULL)
{
g_warning (G_STRLOC": bad row reference, proxy has no outstanding row references");
return;
}
refs->list = g_slist_remove (refs->list, reference);
if (refs->list == NULL)
{
g_object_set_data (G_OBJECT (reference->proxy),
2011-01-12 23:48:20 +00:00
I_(ROW_REF_DATA_STRING),
NULL);
}
if (reference->path)
{
gtk_tree_row_reference_unref_path (reference->path, reference->model, reference->path->depth);
gtk_tree_path_free (reference->path);
}
g_object_unref (reference->proxy);
g_object_unref (reference->model);
g_free (reference);
}
/**
* gtk_tree_row_reference_inserted:
2011-01-12 23:48:20 +00:00
* @proxy: a #GObject
* @path: the row position that was inserted
*
* Lets a set of row reference created by
* gtk_tree_row_reference_new_proxy() know that the
* model emitted the #GtkTreeModel::row-inserted signal.
*/
void
gtk_tree_row_reference_inserted (GObject *proxy,
2011-01-12 23:48:20 +00:00
GtkTreePath *path)
{
g_return_if_fail (G_IS_OBJECT (proxy));
gtk_tree_row_ref_inserted ((RowRefList *)g_object_get_data (proxy, ROW_REF_DATA_STRING), path, NULL);
}
/**
* gtk_tree_row_reference_deleted:
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* @proxy: a #GObject
* @path: the path position that was deleted
*
* Lets a set of row reference created by
* gtk_tree_row_reference_new_proxy() know that the
* model emitted the #GtkTreeModel::row-deleted signal.
*/
void
gtk_tree_row_reference_deleted (GObject *proxy,
2011-01-12 23:48:20 +00:00
GtkTreePath *path)
{
g_return_if_fail (G_IS_OBJECT (proxy));
gtk_tree_row_ref_deleted ((RowRefList *)g_object_get_data (proxy, ROW_REF_DATA_STRING), path);
}
/**
* gtk_tree_row_reference_reordered: (skip)
2011-01-12 23:48:20 +00:00
* @proxy: a #GObject
* @path: the parent path of the reordered signal
* @iter: the iter pointing to the parent of the reordered
* @new_order: (array): the new order of rows
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*
* Lets a set of row reference created by
* gtk_tree_row_reference_new_proxy() know that the
* model emitted the #GtkTreeModel::rows-reordered signal.
*/
void
gtk_tree_row_reference_reordered (GObject *proxy,
2011-01-12 23:48:20 +00:00
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order)
{
g_return_if_fail (G_IS_OBJECT (proxy));
gtk_tree_row_ref_reordered ((RowRefList *)g_object_get_data (proxy, ROW_REF_DATA_STRING), path, iter, new_order);
}