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gtk2/gtk/gtkliststore.c
Cosimo Cecchi e92e767246 liststore: fix transformation of GValues on set 
There are three bugs here:
- we should check if the value type is transformable instead of being
  compatible, since that's all we care about in order to call
  g_value_transform()
- the check is only meaningful in the direction
  passed-in-type->column-type and not viceversa
- we should init the destination GValue to the column type before
  calling g_value_transform on it, or the destination type information
  will be missing and the method will fail

Thanks to Jasper St. Pierre and Colin Walters for all the help in
tracking this down.

https://bugzilla.gnome.org/show_bug.cgi?id=677649
2012-06-07 16:47:11 -04:00

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/* gtkliststore.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
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <gobject/gvaluecollector.h>
#include "gtktreemodel.h"
#include "gtkliststore.h"
#include "gtktreedatalist.h"
#include "gtktreednd.h"
#include "gtkintl.h"
#include "gtkbuildable.h"
#include "gtkbuilderprivate.h"
/**
* SECTION:gtkliststore
* @Short_description: A list-like data structure that can be used with the GtkTreeView
* @Title: GtkListStore
* @See_also:#GtkTreeModel, #GtkTreeStore
*
* The #GtkListStore object is a list model for use with a #GtkTreeView
* widget. It implements the #GtkTreeModel interface, and consequentialy,
* can use all of the methods available there. It also implements the
* #GtkTreeSortable interface so it can be sorted by the view.
* Finally, it also implements the tree <link linkend="gtktreednd">drag and
* drop</link> interfaces.
*
* The #GtkListStore can accept most GObject types as a column type, though
* it can't accept all custom types. Internally, it will keep a copy of
* data passed in (such as a string or a boxed pointer). Columns that
* accept #GObject<!-- -->s are handled a little differently. The
* #GtkListStore will keep a reference to the object instead of copying the
* value. As a result, if the object is modified, it is up to the
* application writer to call gtk_tree_model_row_changed() to emit the
* #GtkTreeModel::row_changed signal. This most commonly affects lists with
* #GdkPixbuf<!-- -->s stored.
*
* <example>
* <title>Creating a simple list store.</title>
* <programlisting>
* enum {
* COLUMN_STRING,
* COLUMN_INT,
* COLUMN_BOOLEAN,
* N_COLUMNS
* };
*
* {
* GtkListStore *list_store;
* GtkTreePath *path;
* GtkTreeIter iter;
* gint i;
*
* list_store = gtk_list_store_new (N_COLUMNS,
* G_TYPE_STRING,
* G_TYPE_INT,
* G_TYPE_BOOLEAN);
*
* for (i = 0; i < 10; i++)
* {
* gchar *some_data;
*
* some_data = get_some_data (i);
*
* // Add a new row to the model
* gtk_list_store_append (list_store, &iter);
* gtk_list_store_set (list_store, &iter,
* COLUMN_STRING, some_data,
* COLUMN_INT, i,
* COLUMN_BOOLEAN, FALSE,
* -1);
*
* /<!---->* As the store will keep a copy of the string internally, we
* * free some_data.
* *<!---->/
* g_free (some_data);
* }
*
* // Modify a particular row
* path = gtk_tree_path_new_from_string ("4");
* gtk_tree_model_get_iter (GTK_TREE_MODEL (list_store),
* &iter,
* path);
* gtk_tree_path_free (path);
* gtk_list_store_set (list_store, &iter,
* COLUMN_BOOLEAN, TRUE,
* -1);
* }
* </programlisting>
* </example>
*
* <refsect2>
* <title>Performance Considerations</title>
* Internally, the #GtkListStore was implemented with a linked list with a
* tail pointer prior to GTK+ 2.6. As a result, it was fast at data
* insertion and deletion, and not fast at random data access. The
* #GtkListStore sets the #GTK_TREE_MODEL_ITERS_PERSIST flag, which means
* that #GtkTreeIter<!-- -->s can be cached while the row exists. Thus, if
* access to a particular row is needed often and your code is expected to
* run on older versions of GTK+, it is worth keeping the iter around.
* </refsect2>
* <refsect2>
* <title>Atomic Operations</title>
* It is important to note that only the methods
* gtk_list_store_insert_with_values() and gtk_list_store_insert_with_valuesv()
* are atomic, in the sense that the row is being appended to the store and the
* values filled in in a single operation with regard to #GtkTreeModel signaling.
* In contrast, using e.g. gtk_list_store_append() and then gtk_list_store_set()
* will first create a row, which triggers the #GtkTreeModel::row-inserted signal
* on #GtkListStore. The row, however, is still empty, and any signal handler
* connecting to #GtkTreeModel::row-inserted on this particular store should be prepared
* for the situation that the row might be empty. This is especially important
* if you are wrapping the #GtkListStore inside a #GtkTreeModelFilter and are
* using a #GtkTreeModelFilterVisibleFunc. Using any of the non-atomic operations
* to append rows to the #GtkListStore will cause the
* #GtkTreeModelFilterVisibleFunc to be visited with an empty row first; the
* function must be prepared for that.
* </refsect2>
* <refsect2 id="GtkListStore-BUILDER-UI">
* <title>GtkListStore as GtkBuildable</title>
* <para>
* The GtkListStore implementation of the GtkBuildable interface allows
* to specify the model columns with a &lt;columns&gt; element that may
* contain multiple &lt;column&gt; elements, each specifying one model
* column. The "type" attribute specifies the data type for the column.
*
* Additionally, it is possible to specify content for the list store
* in the UI definition, with the &lt;data&gt; element. It can contain
* multiple &lt;row&gt; elements, each specifying to content for one
* row of the list model. Inside a &lt;row&gt;, the &lt;col&gt; elements
* specify the content for individual cells.
*
* Note that it is probably more common to define your models
* in the code, and one might consider it a layering violation
* to specify the content of a list store in a UI definition,
* <emphasis>data</emphasis>, not <emphasis>presentation</emphasis>,
* and common wisdom is to separate the two, as far as possible.
* <!-- FIXME a bit inconclusive -->
*
* <example>
* <title>A UI Definition fragment for a list store</title>
* <programlisting><![CDATA[
* <object class="GtkListStore">
* <columns>
* <column type="gchararray"/>
* <column type="gchararray"/>
* <column type="gint"/>
* </columns>
* <data>
* <row>
* <col id="0">John</col>
* <col id="1">Doe</col>
* <col id="2">25</col>
* </row>
* <row>
* <col id="0">Johan</col>
* <col id="1">Dahlin</col>
* <col id="2">50</col>
* </row>
* </data>
* </object>
* ]]></programlisting>
* </example>
* </para>
* </refsect2>
*/
struct _GtkListStorePrivate
{
GtkTreeIterCompareFunc default_sort_func;
GDestroyNotify default_sort_destroy;
GList *sort_list;
GType *column_headers;
gint stamp;
gint n_columns;
gint sort_column_id;
gint length;
GtkSortType order;
guint columns_dirty : 1;
gpointer default_sort_data;
gpointer seq; /* head of the list */
};
#define GTK_LIST_STORE_IS_SORTED(list) (((GtkListStore*)(list))->priv->sort_column_id != GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID)
static void gtk_list_store_tree_model_init (GtkTreeModelIface *iface);
static void gtk_list_store_drag_source_init(GtkTreeDragSourceIface *iface);
static void gtk_list_store_drag_dest_init (GtkTreeDragDestIface *iface);
static void gtk_list_store_sortable_init (GtkTreeSortableIface *iface);
static void gtk_list_store_buildable_init (GtkBuildableIface *iface);
static void gtk_list_store_finalize (GObject *object);
static GtkTreeModelFlags gtk_list_store_get_flags (GtkTreeModel *tree_model);
static gint gtk_list_store_get_n_columns (GtkTreeModel *tree_model);
static GType gtk_list_store_get_column_type (GtkTreeModel *tree_model,
gint index);
static gboolean gtk_list_store_get_iter (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreePath *path);
static GtkTreePath *gtk_list_store_get_path (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static void gtk_list_store_get_value (GtkTreeModel *tree_model,
GtkTreeIter *iter,
gint column,
GValue *value);
static gboolean gtk_list_store_iter_next (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gboolean gtk_list_store_iter_previous (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gboolean gtk_list_store_iter_children (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent);
static gboolean gtk_list_store_iter_has_child (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gint gtk_list_store_iter_n_children (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gboolean gtk_list_store_iter_nth_child (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent,
gint n);
static gboolean gtk_list_store_iter_parent (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *child);
static void gtk_list_store_set_n_columns (GtkListStore *list_store,
gint n_columns);
static void gtk_list_store_set_column_type (GtkListStore *list_store,
gint column,
GType type);
static void gtk_list_store_increment_stamp (GtkListStore *list_store);
/* Drag and Drop */
static gboolean real_gtk_list_store_row_draggable (GtkTreeDragSource *drag_source,
GtkTreePath *path);
static gboolean gtk_list_store_drag_data_delete (GtkTreeDragSource *drag_source,
GtkTreePath *path);
static gboolean gtk_list_store_drag_data_get (GtkTreeDragSource *drag_source,
GtkTreePath *path,
GtkSelectionData *selection_data);
static gboolean gtk_list_store_drag_data_received (GtkTreeDragDest *drag_dest,
GtkTreePath *dest,
GtkSelectionData *selection_data);
static gboolean gtk_list_store_row_drop_possible (GtkTreeDragDest *drag_dest,
GtkTreePath *dest_path,
GtkSelectionData *selection_data);
/* sortable */
static void gtk_list_store_sort (GtkListStore *list_store);
static void gtk_list_store_sort_iter_changed (GtkListStore *list_store,
GtkTreeIter *iter,
gint column);
static gboolean gtk_list_store_get_sort_column_id (GtkTreeSortable *sortable,
gint *sort_column_id,
GtkSortType *order);
static void gtk_list_store_set_sort_column_id (GtkTreeSortable *sortable,
gint sort_column_id,
GtkSortType order);
static void gtk_list_store_set_sort_func (GtkTreeSortable *sortable,
gint sort_column_id,
GtkTreeIterCompareFunc func,
gpointer data,
GDestroyNotify destroy);
static void gtk_list_store_set_default_sort_func (GtkTreeSortable *sortable,
GtkTreeIterCompareFunc func,
gpointer data,
GDestroyNotify destroy);
static gboolean gtk_list_store_has_default_sort_func (GtkTreeSortable *sortable);
/* buildable */
static gboolean gtk_list_store_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data);
static void gtk_list_store_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer *data);
G_DEFINE_TYPE_WITH_CODE (GtkListStore, gtk_list_store, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_MODEL,
gtk_list_store_tree_model_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_DRAG_SOURCE,
gtk_list_store_drag_source_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_DRAG_DEST,
gtk_list_store_drag_dest_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_SORTABLE,
gtk_list_store_sortable_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_list_store_buildable_init))
static void
gtk_list_store_class_init (GtkListStoreClass *class)
{
GObjectClass *object_class;
object_class = (GObjectClass*) class;
object_class->finalize = gtk_list_store_finalize;
g_type_class_add_private (class, sizeof (GtkListStorePrivate));
}
static void
gtk_list_store_tree_model_init (GtkTreeModelIface *iface)
{
iface->get_flags = gtk_list_store_get_flags;
iface->get_n_columns = gtk_list_store_get_n_columns;
iface->get_column_type = gtk_list_store_get_column_type;
iface->get_iter = gtk_list_store_get_iter;
iface->get_path = gtk_list_store_get_path;
iface->get_value = gtk_list_store_get_value;
iface->iter_next = gtk_list_store_iter_next;
iface->iter_previous = gtk_list_store_iter_previous;
iface->iter_children = gtk_list_store_iter_children;
iface->iter_has_child = gtk_list_store_iter_has_child;
iface->iter_n_children = gtk_list_store_iter_n_children;
iface->iter_nth_child = gtk_list_store_iter_nth_child;
iface->iter_parent = gtk_list_store_iter_parent;
}
static void
gtk_list_store_drag_source_init (GtkTreeDragSourceIface *iface)
{
iface->row_draggable = real_gtk_list_store_row_draggable;
iface->drag_data_delete = gtk_list_store_drag_data_delete;
iface->drag_data_get = gtk_list_store_drag_data_get;
}
static void
gtk_list_store_drag_dest_init (GtkTreeDragDestIface *iface)
{
iface->drag_data_received = gtk_list_store_drag_data_received;
iface->row_drop_possible = gtk_list_store_row_drop_possible;
}
static void
gtk_list_store_sortable_init (GtkTreeSortableIface *iface)
{
iface->get_sort_column_id = gtk_list_store_get_sort_column_id;
iface->set_sort_column_id = gtk_list_store_set_sort_column_id;
iface->set_sort_func = gtk_list_store_set_sort_func;
iface->set_default_sort_func = gtk_list_store_set_default_sort_func;
iface->has_default_sort_func = gtk_list_store_has_default_sort_func;
}
void
gtk_list_store_buildable_init (GtkBuildableIface *iface)
{
iface->custom_tag_start = gtk_list_store_buildable_custom_tag_start;
iface->custom_tag_end = gtk_list_store_buildable_custom_tag_end;
}
static void
gtk_list_store_init (GtkListStore *list_store)
{
GtkListStorePrivate *priv;
list_store->priv = G_TYPE_INSTANCE_GET_PRIVATE (list_store,
GTK_TYPE_LIST_STORE,
GtkListStorePrivate);
priv = list_store->priv;
priv->seq = g_sequence_new (NULL);
priv->sort_list = NULL;
priv->stamp = g_random_int ();
priv->sort_column_id = GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID;
priv->columns_dirty = FALSE;
priv->length = 0;
}
static gboolean
iter_is_valid (GtkTreeIter *iter,
GtkListStore *list_store)
{
return iter != NULL &&
iter->user_data != NULL &&
list_store->priv->stamp == iter->stamp &&
!g_sequence_iter_is_end (iter->user_data) &&
g_sequence_iter_get_sequence (iter->user_data) == list_store->priv->seq;
}
/**
* gtk_list_store_new:
* @n_columns: number of columns in the list store
* @...: all #GType types for the columns, from first to last
*
* Creates a new list store as with @n_columns columns each of the types passed
* in. Note that only types derived from standard GObject fundamental types
* are supported.
*
* As an example, <literal>gtk_tree_store_new (3, G_TYPE_INT, G_TYPE_STRING,
* GDK_TYPE_PIXBUF);</literal> will create a new #GtkListStore with three columns, of type
* int, string and #GdkPixbuf respectively.
*
* Return value: a new #GtkListStore
*/
GtkListStore *
gtk_list_store_new (gint n_columns,
...)
{
GtkListStore *retval;
va_list args;
gint i;
g_return_val_if_fail (n_columns > 0, NULL);
retval = g_object_new (GTK_TYPE_LIST_STORE, NULL);
gtk_list_store_set_n_columns (retval, n_columns);
va_start (args, n_columns);
for (i = 0; i < n_columns; i++)
{
GType type = va_arg (args, GType);
if (! _gtk_tree_data_list_check_type (type))
{
g_warning ("%s: Invalid type %s\n", G_STRLOC, g_type_name (type));
g_object_unref (retval);
va_end (args);
return NULL;
}
gtk_list_store_set_column_type (retval, i, type);
}
va_end (args);
return retval;
}
/**
* gtk_list_store_newv:
* @n_columns: number of columns in the list store
* @types: (array length=n_columns): an array of #GType types for the columns, from first to last
*
* Non-vararg creation function. Used primarily by language bindings.
*
* Return value: (transfer full): a new #GtkListStore
* Rename to: gtk_list_store_new
**/
GtkListStore *
gtk_list_store_newv (gint n_columns,
GType *types)
{
GtkListStore *retval;
gint i;
g_return_val_if_fail (n_columns > 0, NULL);
retval = g_object_new (GTK_TYPE_LIST_STORE, NULL);
gtk_list_store_set_n_columns (retval, n_columns);
for (i = 0; i < n_columns; i++)
{
if (! _gtk_tree_data_list_check_type (types[i]))
{
g_warning ("%s: Invalid type %s\n", G_STRLOC, g_type_name (types[i]));
g_object_unref (retval);
return NULL;
}
gtk_list_store_set_column_type (retval, i, types[i]);
}
return retval;
}
/**
* gtk_list_store_set_column_types:
* @list_store: A #GtkListStore
* @n_columns: Number of columns for the list store
* @types: (array length=n_columns): An array length n of #GTypes
*
* This function is meant primarily for #GObjects that inherit from #GtkListStore,
* and should only be used when constructing a new #GtkListStore. It will not
* function after a row has been added, or a method on the #GtkTreeModel
* interface is called.
**/
void
gtk_list_store_set_column_types (GtkListStore *list_store,
gint n_columns,
GType *types)
{
GtkListStorePrivate *priv;
gint i;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
priv = list_store->priv;
g_return_if_fail (priv->columns_dirty == 0);
gtk_list_store_set_n_columns (list_store, n_columns);
for (i = 0; i < n_columns; i++)
{
if (! _gtk_tree_data_list_check_type (types[i]))
{
g_warning ("%s: Invalid type %s\n", G_STRLOC, g_type_name (types[i]));
continue;
}
gtk_list_store_set_column_type (list_store, i, types[i]);
}
}
static void
gtk_list_store_set_n_columns (GtkListStore *list_store,
gint n_columns)
{
GtkListStorePrivate *priv = list_store->priv;
int i;
if (priv->n_columns == n_columns)
return;
priv->column_headers = g_renew (GType, priv->column_headers, n_columns);
for (i = priv->n_columns; i < n_columns; i++)
priv->column_headers[i] = G_TYPE_INVALID;
priv->n_columns = n_columns;
if (priv->sort_list)
_gtk_tree_data_list_header_free (priv->sort_list);
priv->sort_list = _gtk_tree_data_list_header_new (n_columns, priv->column_headers);
}
static void
gtk_list_store_set_column_type (GtkListStore *list_store,
gint column,
GType type)
{
GtkListStorePrivate *priv = list_store->priv;
if (!_gtk_tree_data_list_check_type (type))
{
g_warning ("%s: Invalid type %s\n", G_STRLOC, g_type_name (type));
return;
}
priv->column_headers[column] = type;
}
static void
gtk_list_store_finalize (GObject *object)
{
GtkListStore *list_store = GTK_LIST_STORE (object);
GtkListStorePrivate *priv = list_store->priv;
g_sequence_foreach (priv->seq,
(GFunc) _gtk_tree_data_list_free, priv->column_headers);
g_sequence_free (priv->seq);
_gtk_tree_data_list_header_free (priv->sort_list);
g_free (priv->column_headers);
if (priv->default_sort_destroy)
{
GDestroyNotify d = priv->default_sort_destroy;
priv->default_sort_destroy = NULL;
d (priv->default_sort_data);
priv->default_sort_data = NULL;
}
G_OBJECT_CLASS (gtk_list_store_parent_class)->finalize (object);
}
/* Fulfill the GtkTreeModel requirements */
static GtkTreeModelFlags
gtk_list_store_get_flags (GtkTreeModel *tree_model)
{
return GTK_TREE_MODEL_ITERS_PERSIST | GTK_TREE_MODEL_LIST_ONLY;
}
static gint
gtk_list_store_get_n_columns (GtkTreeModel *tree_model)
{
GtkListStore *list_store = GTK_LIST_STORE (tree_model);
GtkListStorePrivate *priv = list_store->priv;
priv->columns_dirty = TRUE;
return priv->n_columns;
}
static GType
gtk_list_store_get_column_type (GtkTreeModel *tree_model,
gint index)
{
GtkListStore *list_store = GTK_LIST_STORE (tree_model);
GtkListStorePrivate *priv = list_store->priv;
g_return_val_if_fail (index < priv->n_columns, G_TYPE_INVALID);
priv->columns_dirty = TRUE;
return priv->column_headers[index];
}
static gboolean
gtk_list_store_get_iter (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreePath *path)
{
GtkListStore *list_store = GTK_LIST_STORE (tree_model);
GtkListStorePrivate *priv = list_store->priv;
GSequence *seq;
gint i;
priv->columns_dirty = TRUE;
seq = priv->seq;
i = gtk_tree_path_get_indices (path)[0];
if (i >= g_sequence_get_length (seq))
{
iter->stamp = 0;
return FALSE;
}
iter->stamp = priv->stamp;
iter->user_data = g_sequence_get_iter_at_pos (seq, i);
return TRUE;
}
static GtkTreePath *
gtk_list_store_get_path (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
GtkListStore *list_store = GTK_LIST_STORE (tree_model);
GtkListStorePrivate *priv = list_store->priv;
GtkTreePath *path;
g_return_val_if_fail (iter->stamp == priv->stamp, NULL);
if (g_sequence_iter_is_end (iter->user_data))
return NULL;
path = gtk_tree_path_new ();
gtk_tree_path_append_index (path, g_sequence_iter_get_position (iter->user_data));
return path;
}
static void
gtk_list_store_get_value (GtkTreeModel *tree_model,
GtkTreeIter *iter,
gint column,
GValue *value)
{
GtkListStore *list_store = GTK_LIST_STORE (tree_model);
GtkListStorePrivate *priv = list_store->priv;
GtkTreeDataList *list;
gint tmp_column = column;
g_return_if_fail (column < priv->n_columns);
g_return_if_fail (iter_is_valid (iter, list_store));
list = g_sequence_get (iter->user_data);
while (tmp_column-- > 0 && list)
list = list->next;
if (list == NULL)
g_value_init (value, priv->column_headers[column]);
else
_gtk_tree_data_list_node_to_value (list,
priv->column_headers[column],
value);
}
static gboolean
gtk_list_store_iter_next (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
GtkListStore *list_store = GTK_LIST_STORE (tree_model);
GtkListStorePrivate *priv = list_store->priv;
gboolean retval;
g_return_val_if_fail (priv->stamp == iter->stamp, FALSE);
iter->user_data = g_sequence_iter_next (iter->user_data);
retval = g_sequence_iter_is_end (iter->user_data);
if (retval)
iter->stamp = 0;
return !retval;
}
static gboolean
gtk_list_store_iter_previous (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
GtkListStore *list_store = GTK_LIST_STORE (tree_model);
GtkListStorePrivate *priv = list_store->priv;
g_return_val_if_fail (priv->stamp == iter->stamp, FALSE);
if (g_sequence_iter_is_begin (iter->user_data))
{
iter->stamp = 0;
return FALSE;
}
iter->user_data = g_sequence_iter_prev (iter->user_data);
return TRUE;
}
static gboolean
gtk_list_store_iter_children (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent)
{
GtkListStore *list_store = (GtkListStore *) tree_model;
GtkListStorePrivate *priv = list_store->priv;
/* this is a list, nodes have no children */
if (parent)
{
iter->stamp = 0;
return FALSE;
}
if (g_sequence_get_length (priv->seq) > 0)
{
iter->stamp = priv->stamp;
iter->user_data = g_sequence_get_begin_iter (priv->seq);
return TRUE;
}
else
{
iter->stamp = 0;
return FALSE;
}
}
static gboolean
gtk_list_store_iter_has_child (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
return FALSE;
}
static gint
gtk_list_store_iter_n_children (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
GtkListStore *list_store = GTK_LIST_STORE (tree_model);
GtkListStorePrivate *priv = list_store->priv;
if (iter == NULL)
return g_sequence_get_length (priv->seq);
g_return_val_if_fail (priv->stamp == iter->stamp, -1);
return 0;
}
static gboolean
gtk_list_store_iter_nth_child (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent,
gint n)
{
GtkListStore *list_store = GTK_LIST_STORE (tree_model);
GtkListStorePrivate *priv = list_store->priv;
GSequenceIter *child;
iter->stamp = 0;
if (parent)
return FALSE;
child = g_sequence_get_iter_at_pos (priv->seq, n);
if (g_sequence_iter_is_end (child))
return FALSE;
iter->stamp = priv->stamp;
iter->user_data = child;
return TRUE;
}
static gboolean
gtk_list_store_iter_parent (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *child)
{
iter->stamp = 0;
return FALSE;
}
static gboolean
gtk_list_store_real_set_value (GtkListStore *list_store,
GtkTreeIter *iter,
gint column,
GValue *value,
gboolean sort)
{
GtkListStorePrivate *priv = list_store->priv;
GtkTreeDataList *list;
GtkTreeDataList *prev;
gint old_column = column;
GValue real_value = G_VALUE_INIT;
gboolean converted = FALSE;
gboolean retval = FALSE;
if (! g_type_is_a (G_VALUE_TYPE (value), priv->column_headers[column]))
{
if (! (g_value_type_transformable (G_VALUE_TYPE (value), priv->column_headers[column])))
{
g_warning ("%s: Unable to convert from %s to %s\n",
G_STRLOC,
g_type_name (G_VALUE_TYPE (value)),
g_type_name (priv->column_headers[column]));
return retval;
}
g_value_init (&real_value, priv->column_headers[column]);
if (!g_value_transform (value, &real_value))
{
g_warning ("%s: Unable to make conversion from %s to %s\n",
G_STRLOC,
g_type_name (G_VALUE_TYPE (value)),
g_type_name (priv->column_headers[column]));
g_value_unset (&real_value);
return retval;
}
converted = TRUE;
}
prev = list = g_sequence_get (iter->user_data);
while (list != NULL)
{
if (column == 0)
{
if (converted)
_gtk_tree_data_list_value_to_node (list, &real_value);
else
_gtk_tree_data_list_value_to_node (list, value);
retval = TRUE;
if (converted)
g_value_unset (&real_value);
if (sort && GTK_LIST_STORE_IS_SORTED (list_store))
gtk_list_store_sort_iter_changed (list_store, iter, old_column);
return retval;
}
column--;
prev = list;
list = list->next;
}
if (g_sequence_get (iter->user_data) == NULL)
{
list = _gtk_tree_data_list_alloc();
g_sequence_set (iter->user_data, list);
list->next = NULL;
}
else
{
list = prev->next = _gtk_tree_data_list_alloc ();
list->next = NULL;
}
while (column != 0)
{
list->next = _gtk_tree_data_list_alloc ();
list = list->next;
list->next = NULL;
column --;
}
if (converted)
_gtk_tree_data_list_value_to_node (list, &real_value);
else
_gtk_tree_data_list_value_to_node (list, value);
retval = TRUE;
if (converted)
g_value_unset (&real_value);
if (sort && GTK_LIST_STORE_IS_SORTED (list_store))
gtk_list_store_sort_iter_changed (list_store, iter, old_column);
return retval;
}
/**
* gtk_list_store_set_value:
* @list_store: A #GtkListStore
* @iter: A valid #GtkTreeIter for the row being modified
* @column: column number to modify
* @value: new value for the cell
*
* Sets the data in the cell specified by @iter and @column.
* The type of @value must be convertible to the type of the
* column.
*
**/
void
gtk_list_store_set_value (GtkListStore *list_store,
GtkTreeIter *iter,
gint column,
GValue *value)
{
GtkListStorePrivate *priv;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter_is_valid (iter, list_store));
g_return_if_fail (G_IS_VALUE (value));
priv = list_store->priv;
g_return_if_fail (column >= 0 && column < priv->n_columns);
if (gtk_list_store_real_set_value (list_store, iter, column, value, TRUE))
{
GtkTreePath *path;
path = gtk_list_store_get_path (GTK_TREE_MODEL (list_store), iter);
gtk_tree_model_row_changed (GTK_TREE_MODEL (list_store), path, iter);
gtk_tree_path_free (path);
}
}
static GtkTreeIterCompareFunc
gtk_list_store_get_compare_func (GtkListStore *list_store)
{
GtkListStorePrivate *priv = list_store->priv;
GtkTreeIterCompareFunc func = NULL;
if (GTK_LIST_STORE_IS_SORTED (list_store))
{
if (priv->sort_column_id != -1)
{
GtkTreeDataSortHeader *header;
header = _gtk_tree_data_list_get_header (priv->sort_list,
priv->sort_column_id);
g_return_val_if_fail (header != NULL, NULL);
g_return_val_if_fail (header->func != NULL, NULL);
func = header->func;
}
else
{
func = priv->default_sort_func;
}
}
return func;
}
static void
gtk_list_store_set_vector_internal (GtkListStore *list_store,
GtkTreeIter *iter,
gboolean *emit_signal,
gboolean *maybe_need_sort,
gint *columns,
GValue *values,
gint n_values)
{
GtkListStorePrivate *priv = list_store->priv;
gint i;
GtkTreeIterCompareFunc func = NULL;
func = gtk_list_store_get_compare_func (list_store);
if (func != _gtk_tree_data_list_compare_func)
*maybe_need_sort = TRUE;
for (i = 0; i < n_values; i++)
{
*emit_signal = gtk_list_store_real_set_value (list_store,
iter,
columns[i],
&values[i],
FALSE) || *emit_signal;
if (func == _gtk_tree_data_list_compare_func &&
columns[i] == priv->sort_column_id)
*maybe_need_sort = TRUE;
}
}
static void
gtk_list_store_set_valist_internal (GtkListStore *list_store,
GtkTreeIter *iter,
gboolean *emit_signal,
gboolean *maybe_need_sort,
va_list var_args)
{
GtkListStorePrivate *priv = list_store->priv;
gint column;
GtkTreeIterCompareFunc func = NULL;
column = va_arg (var_args, gint);
func = gtk_list_store_get_compare_func (list_store);
if (func != _gtk_tree_data_list_compare_func)
*maybe_need_sort = TRUE;
while (column != -1)
{
GValue value = G_VALUE_INIT;
gchar *error = NULL;
if (column < 0 || column >= priv->n_columns)
{
g_warning ("%s: Invalid column number %d added to iter (remember to end your list of columns with a -1)", G_STRLOC, column);
break;
}
G_VALUE_COLLECT_INIT (&value, priv->column_headers[column],
var_args, 0, &error);
if (error)
{
g_warning ("%s: %s", G_STRLOC, error);
g_free (error);
/* we purposely leak the value here, it might not be
* in a sane state if an error condition occoured
*/
break;
}
/* FIXME: instead of calling this n times, refactor with above */
*emit_signal = gtk_list_store_real_set_value (list_store,
iter,
column,
&value,
FALSE) || *emit_signal;
if (func == _gtk_tree_data_list_compare_func &&
column == priv->sort_column_id)
*maybe_need_sort = TRUE;
g_value_unset (&value);
column = va_arg (var_args, gint);
}
}
/**
* gtk_list_store_set_valuesv:
* @list_store: A #GtkListStore
* @iter: A valid #GtkTreeIter for the row being modified
* @columns: (array length=n_values): an array of column numbers
* @values: (array length=n_values): an array of GValues
* @n_values: the length of the @columns and @values arrays
*
* A variant of gtk_list_store_set_valist() which
* takes the columns and values as two arrays, instead of
* varargs. This function is mainly intended for
* language-bindings and in case the number of columns to
* change is not known until run-time.
*
* Since: 2.12
* Rename to: gtk_list_store_set
*/
void
gtk_list_store_set_valuesv (GtkListStore *list_store,
GtkTreeIter *iter,
gint *columns,
GValue *values,
gint n_values)
{
GtkListStorePrivate *priv;
gboolean emit_signal = FALSE;
gboolean maybe_need_sort = FALSE;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter_is_valid (iter, list_store));
priv = list_store->priv;
gtk_list_store_set_vector_internal (list_store, iter,
&emit_signal,
&maybe_need_sort,
columns, values, n_values);
if (maybe_need_sort && GTK_LIST_STORE_IS_SORTED (list_store))
gtk_list_store_sort_iter_changed (list_store, iter, priv->sort_column_id);
if (emit_signal)
{
GtkTreePath *path;
path = gtk_list_store_get_path (GTK_TREE_MODEL (list_store), iter);
gtk_tree_model_row_changed (GTK_TREE_MODEL (list_store), path, iter);
gtk_tree_path_free (path);
}
}
/**
* gtk_list_store_set_valist:
* @list_store: A #GtkListStore
* @iter: A valid #GtkTreeIter for the row being modified
* @var_args: va_list of column/value pairs
*
* See gtk_list_store_set(); this version takes a va_list for use by language
* bindings.
*
**/
void
gtk_list_store_set_valist (GtkListStore *list_store,
GtkTreeIter *iter,
va_list var_args)
{
GtkListStorePrivate *priv;
gboolean emit_signal = FALSE;
gboolean maybe_need_sort = FALSE;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter_is_valid (iter, list_store));
priv = list_store->priv;
gtk_list_store_set_valist_internal (list_store, iter,
&emit_signal,
&maybe_need_sort,
var_args);
if (maybe_need_sort && GTK_LIST_STORE_IS_SORTED (list_store))
gtk_list_store_sort_iter_changed (list_store, iter, priv->sort_column_id);
if (emit_signal)
{
GtkTreePath *path;
path = gtk_list_store_get_path (GTK_TREE_MODEL (list_store), iter);
gtk_tree_model_row_changed (GTK_TREE_MODEL (list_store), path, iter);
gtk_tree_path_free (path);
}
}
/**
* gtk_list_store_set:
* @list_store: a #GtkListStore
* @iter: row iterator
* @...: pairs of column number and value, terminated with -1
*
* Sets 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 the value to be set.
* The list is terminated by a -1. For example, to set column 0 with type
* %G_TYPE_STRING to "Foo", you would write <literal>gtk_list_store_set (store, iter,
* 0, "Foo", -1)</literal>.
*
* The value will be referenced by the store if it is a %G_TYPE_OBJECT, and it
* will be copied if it is a %G_TYPE_STRING or %G_TYPE_BOXED.
*/
void
gtk_list_store_set (GtkListStore *list_store,
GtkTreeIter *iter,
...)
{
va_list var_args;
va_start (var_args, iter);
gtk_list_store_set_valist (list_store, iter, var_args);
va_end (var_args);
}
/**
* gtk_list_store_remove:
* @list_store: A #GtkListStore
* @iter: A valid #GtkTreeIter
*
* Removes the given row from the list store. After being removed,
* @iter is set to be the next valid row, or invalidated if it pointed
* to the last row in @list_store.
*
* Return value: %TRUE if @iter is valid, %FALSE if not.
**/
gboolean
gtk_list_store_remove (GtkListStore *list_store,
GtkTreeIter *iter)
{
GtkListStorePrivate *priv;
GtkTreePath *path;
GSequenceIter *ptr, *next;
g_return_val_if_fail (GTK_IS_LIST_STORE (list_store), FALSE);
g_return_val_if_fail (iter_is_valid (iter, list_store), FALSE);
priv = list_store->priv;
path = gtk_list_store_get_path (GTK_TREE_MODEL (list_store), iter);
ptr = iter->user_data;
next = g_sequence_iter_next (ptr);
_gtk_tree_data_list_free (g_sequence_get (ptr), priv->column_headers);
g_sequence_remove (iter->user_data);
priv->length--;
gtk_tree_model_row_deleted (GTK_TREE_MODEL (list_store), path);
gtk_tree_path_free (path);
if (g_sequence_iter_is_end (next))
{
iter->stamp = 0;
return FALSE;
}
else
{
iter->stamp = priv->stamp;
iter->user_data = next;
return TRUE;
}
}
/**
* gtk_list_store_insert:
* @list_store: A #GtkListStore
* @iter: (out): An unset #GtkTreeIter to set to the new row
* @position: position to insert the new row
*
* Creates a new row at @position. @iter will be changed to point to this new
* row. If @position is larger than the number of rows on the list, then the
* new row will be appended to the list. The row will be empty after this
* function is called. To fill in values, you need to call
* gtk_list_store_set() or gtk_list_store_set_value().
*
**/
void
gtk_list_store_insert (GtkListStore *list_store,
GtkTreeIter *iter,
gint position)
{
GtkListStorePrivate *priv;
GtkTreePath *path;
GSequence *seq;
GSequenceIter *ptr;
gint length;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
g_return_if_fail (position >= 0);
priv = list_store->priv;
priv->columns_dirty = TRUE;
seq = priv->seq;
length = g_sequence_get_length (seq);
if (position > length)
position = length;
ptr = g_sequence_get_iter_at_pos (seq, position);
ptr = g_sequence_insert_before (ptr, NULL);
iter->stamp = priv->stamp;
iter->user_data = ptr;
g_assert (iter_is_valid (iter, list_store));
priv->length++;
path = gtk_tree_path_new ();
gtk_tree_path_append_index (path, position);
gtk_tree_model_row_inserted (GTK_TREE_MODEL (list_store), path, iter);
gtk_tree_path_free (path);
}
/**
* gtk_list_store_insert_before:
* @list_store: A #GtkListStore
* @iter: (out): An unset #GtkTreeIter to set to the new row
* @sibling: (allow-none): A valid #GtkTreeIter, or %NULL
*
* Inserts a new row before @sibling. If @sibling is %NULL, then the row will
* be appended to the end of the list. @iter will be changed to point to this
* new row. The row will be empty after this function is called. To fill in
* values, you need to call gtk_list_store_set() or gtk_list_store_set_value().
*
**/
void
gtk_list_store_insert_before (GtkListStore *list_store,
GtkTreeIter *iter,
GtkTreeIter *sibling)
{
GtkListStorePrivate *priv;
GSequenceIter *after;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
priv = list_store->priv;
if (sibling)
g_return_if_fail (iter_is_valid (sibling, list_store));
if (!sibling)
after = g_sequence_get_end_iter (priv->seq);
else
after = sibling->user_data;
gtk_list_store_insert (list_store, iter, g_sequence_iter_get_position (after));
}
/**
* gtk_list_store_insert_after:
* @list_store: A #GtkListStore
* @iter: (out): An unset #GtkTreeIter to set to the new row
* @sibling: (allow-none): A valid #GtkTreeIter, or %NULL
*
* Inserts a new row after @sibling. If @sibling is %NULL, then the row will be
* prepended to the beginning of the list. @iter will be changed to point to
* this new row. The row will be empty after this function is called. To fill
* in values, you need to call gtk_list_store_set() or gtk_list_store_set_value().
*
**/
void
gtk_list_store_insert_after (GtkListStore *list_store,
GtkTreeIter *iter,
GtkTreeIter *sibling)
{
GtkListStorePrivate *priv;
GSequenceIter *after;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
priv = list_store->priv;
if (sibling)
g_return_if_fail (iter_is_valid (sibling, list_store));
if (!sibling)
after = g_sequence_get_begin_iter (priv->seq);
else
after = g_sequence_iter_next (sibling->user_data);
gtk_list_store_insert (list_store, iter, g_sequence_iter_get_position (after));
}
/**
* gtk_list_store_prepend:
* @list_store: A #GtkListStore
* @iter: (out): An unset #GtkTreeIter to set to the prepend row
*
* Prepends a new row to @list_store. @iter will be changed to point to this new
* row. The row will be empty after this function is called. To fill in
* values, you need to call gtk_list_store_set() or gtk_list_store_set_value().
*
**/
void
gtk_list_store_prepend (GtkListStore *list_store,
GtkTreeIter *iter)
{
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
gtk_list_store_insert (list_store, iter, 0);
}
/**
* gtk_list_store_append:
* @list_store: A #GtkListStore
* @iter: (out): An unset #GtkTreeIter to set to the appended row
*
* Appends a new row to @list_store. @iter will be changed to point to this new
* row. The row will be empty after this function is called. To fill in
* values, you need to call gtk_list_store_set() or gtk_list_store_set_value().
*
**/
void
gtk_list_store_append (GtkListStore *list_store,
GtkTreeIter *iter)
{
GtkListStorePrivate *priv;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
priv = list_store->priv;
gtk_list_store_insert (list_store, iter, g_sequence_get_length (priv->seq));
}
static void
gtk_list_store_increment_stamp (GtkListStore *list_store)
{
GtkListStorePrivate *priv = list_store->priv;
do
{
priv->stamp++;
}
while (priv->stamp == 0);
}
/**
* gtk_list_store_clear:
* @list_store: a #GtkListStore.
*
* Removes all rows from the list store.
*
**/
void
gtk_list_store_clear (GtkListStore *list_store)
{
GtkListStorePrivate *priv;
GtkTreeIter iter;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
priv = list_store->priv;
while (g_sequence_get_length (priv->seq) > 0)
{
iter.stamp = priv->stamp;
iter.user_data = g_sequence_get_begin_iter (priv->seq);
gtk_list_store_remove (list_store, &iter);
}
gtk_list_store_increment_stamp (list_store);
}
/**
* gtk_list_store_iter_is_valid:
* @list_store: A #GtkListStore.
* @iter: A #GtkTreeIter.
*
* <warning>This function is slow. Only use it for debugging and/or testing
* purposes.</warning>
*
* Checks if the given iter is a valid iter for this #GtkListStore.
*
* Return value: %TRUE if the iter is valid, %FALSE if the iter is invalid.
*
* Since: 2.2
**/
gboolean
gtk_list_store_iter_is_valid (GtkListStore *list_store,
GtkTreeIter *iter)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (list_store), FALSE);
g_return_val_if_fail (iter != NULL, FALSE);
return iter_is_valid (iter, list_store);
}
static gboolean real_gtk_list_store_row_draggable (GtkTreeDragSource *drag_source,
GtkTreePath *path)
{
return TRUE;
}
static gboolean
gtk_list_store_drag_data_delete (GtkTreeDragSource *drag_source,
GtkTreePath *path)
{
GtkTreeIter iter;
if (gtk_list_store_get_iter (GTK_TREE_MODEL (drag_source),
&iter,
path))
{
gtk_list_store_remove (GTK_LIST_STORE (drag_source), &iter);
return TRUE;
}
return FALSE;
}
static gboolean
gtk_list_store_drag_data_get (GtkTreeDragSource *drag_source,
GtkTreePath *path,
GtkSelectionData *selection_data)
{
/* Note that we don't need to handle the GTK_TREE_MODEL_ROW
* target, because the default handler does it for us, but
* we do anyway for the convenience of someone maybe overriding the
* default handler.
*/
if (gtk_tree_set_row_drag_data (selection_data,
GTK_TREE_MODEL (drag_source),
path))
{
return TRUE;
}
else
{
/* FIXME handle text targets at least. */
}
return FALSE;
}
static gboolean
gtk_list_store_drag_data_received (GtkTreeDragDest *drag_dest,
GtkTreePath *dest,
GtkSelectionData *selection_data)
{
GtkTreeModel *tree_model = GTK_TREE_MODEL (drag_dest);
GtkListStore *list_store = GTK_LIST_STORE (tree_model);
GtkListStorePrivate *priv = list_store->priv;
GtkTreeModel *src_model = NULL;
GtkTreePath *src_path = NULL;
gboolean retval = FALSE;
if (gtk_tree_get_row_drag_data (selection_data,
&src_model,
&src_path) &&
src_model == tree_model)
{
/* Copy the given row to a new position */
GtkTreeIter src_iter;
GtkTreeIter dest_iter;
GtkTreePath *prev;
if (!gtk_list_store_get_iter (src_model,
&src_iter,
src_path))
{
goto out;
}
/* Get the path to insert _after_ (dest is the path to insert _before_) */
prev = gtk_tree_path_copy (dest);
if (!gtk_tree_path_prev (prev))
{
/* dest was the first spot in the list; which means we are supposed
* to prepend.
*/
gtk_list_store_prepend (list_store, &dest_iter);
retval = TRUE;
}
else
{
if (gtk_list_store_get_iter (tree_model, &dest_iter, prev))
{
GtkTreeIter tmp_iter = dest_iter;
gtk_list_store_insert_after (list_store, &dest_iter, &tmp_iter);
retval = TRUE;
}
}
gtk_tree_path_free (prev);
/* If we succeeded in creating dest_iter, copy data from src
*/
if (retval)
{
GtkTreeDataList *dl = g_sequence_get (src_iter.user_data);
GtkTreeDataList *copy_head = NULL;
GtkTreeDataList *copy_prev = NULL;
GtkTreeDataList *copy_iter = NULL;
GtkTreePath *path;
gint col;
col = 0;
while (dl)
{
copy_iter = _gtk_tree_data_list_node_copy (dl,
priv->column_headers[col]);
if (copy_head == NULL)
copy_head = copy_iter;
if (copy_prev)
copy_prev->next = copy_iter;
copy_prev = copy_iter;
dl = dl->next;
++col;
}
dest_iter.stamp = priv->stamp;
g_sequence_set (dest_iter.user_data, copy_head);
path = gtk_list_store_get_path (tree_model, &dest_iter);
gtk_tree_model_row_changed (tree_model, path, &dest_iter);
gtk_tree_path_free (path);
}
}
else
{
/* FIXME maybe add some data targets eventually, or handle text
* targets in the simple case.
*/
}
out:
if (src_path)
gtk_tree_path_free (src_path);
return retval;
}
static gboolean
gtk_list_store_row_drop_possible (GtkTreeDragDest *drag_dest,
GtkTreePath *dest_path,
GtkSelectionData *selection_data)
{
gint *indices;
GtkTreeModel *src_model = NULL;
GtkTreePath *src_path = NULL;
gboolean retval = FALSE;
/* don't accept drops if the list has been sorted */
if (GTK_LIST_STORE_IS_SORTED (drag_dest))
return FALSE;
if (!gtk_tree_get_row_drag_data (selection_data,
&src_model,
&src_path))
goto out;
if (src_model != GTK_TREE_MODEL (drag_dest))
goto out;
if (gtk_tree_path_get_depth (dest_path) != 1)
goto out;
/* can drop before any existing node, or before one past any existing. */
indices = gtk_tree_path_get_indices (dest_path);
if (indices[0] <= g_sequence_get_length (GTK_LIST_STORE (drag_dest)->priv->seq))
retval = TRUE;
out:
if (src_path)
gtk_tree_path_free (src_path);
return retval;
}
/* Sorting and reordering */
/* Reordering */
static gint
gtk_list_store_reorder_func (GSequenceIter *a,
GSequenceIter *b,
gpointer user_data)
{
GHashTable *new_positions = user_data;
gint apos = GPOINTER_TO_INT (g_hash_table_lookup (new_positions, a));
gint bpos = GPOINTER_TO_INT (g_hash_table_lookup (new_positions, b));
if (apos < bpos)
return -1;
if (apos > bpos)
return 1;
return 0;
}
/**
* gtk_list_store_reorder: (skip)
* @store: A #GtkListStore.
* @new_order: (array): an array of integers mapping the new position of each child
* to its old position before the re-ordering,
* i.e. @new_order<literal>[newpos] = oldpos</literal>.
*
* Reorders @store to follow the order indicated by @new_order. Note that
* this function only works with unsorted stores.
*
* Since: 2.2
**/
void
gtk_list_store_reorder (GtkListStore *store,
gint *new_order)
{
GtkListStorePrivate *priv;
gint i;
GtkTreePath *path;
GHashTable *new_positions;
GSequenceIter *ptr;
gint *order;
g_return_if_fail (GTK_IS_LIST_STORE (store));
g_return_if_fail (!GTK_LIST_STORE_IS_SORTED (store));
g_return_if_fail (new_order != NULL);
priv = store->priv;
order = g_new (gint, g_sequence_get_length (priv->seq));
for (i = 0; i < g_sequence_get_length (priv->seq); i++)
order[new_order[i]] = i;
new_positions = g_hash_table_new (g_direct_hash, g_direct_equal);
ptr = g_sequence_get_begin_iter (priv->seq);
i = 0;
while (!g_sequence_iter_is_end (ptr))
{
g_hash_table_insert (new_positions, ptr, GINT_TO_POINTER (order[i++]));
ptr = g_sequence_iter_next (ptr);
}
g_free (order);
g_sequence_sort_iter (priv->seq, gtk_list_store_reorder_func, new_positions);
g_hash_table_destroy (new_positions);
/* emit signal */
path = gtk_tree_path_new ();
gtk_tree_model_rows_reordered (GTK_TREE_MODEL (store),
path, NULL, new_order);
gtk_tree_path_free (path);
}
static GHashTable *
save_positions (GSequence *seq)
{
GHashTable *positions = g_hash_table_new (g_direct_hash, g_direct_equal);
GSequenceIter *ptr;
ptr = g_sequence_get_begin_iter (seq);
while (!g_sequence_iter_is_end (ptr))
{
g_hash_table_insert (positions, ptr,
GINT_TO_POINTER (g_sequence_iter_get_position (ptr)));
ptr = g_sequence_iter_next (ptr);
}
return positions;
}
static int *
generate_order (GSequence *seq,
GHashTable *old_positions)
{
GSequenceIter *ptr;
int *order = g_new (int, g_sequence_get_length (seq));
int i;
i = 0;
ptr = g_sequence_get_begin_iter (seq);
while (!g_sequence_iter_is_end (ptr))
{
int old_pos = GPOINTER_TO_INT (g_hash_table_lookup (old_positions, ptr));
order[i++] = old_pos;
ptr = g_sequence_iter_next (ptr);
}
g_hash_table_destroy (old_positions);
return order;
}
/**
* gtk_list_store_swap:
* @store: A #GtkListStore.
* @a: A #GtkTreeIter.
* @b: Another #GtkTreeIter.
*
* Swaps @a and @b in @store. Note that this function only works with
* unsorted stores.
*
* Since: 2.2
**/
void
gtk_list_store_swap (GtkListStore *store,
GtkTreeIter *a,
GtkTreeIter *b)
{
GtkListStorePrivate *priv;
GHashTable *old_positions;
gint *order;
GtkTreePath *path;
g_return_if_fail (GTK_IS_LIST_STORE (store));
g_return_if_fail (!GTK_LIST_STORE_IS_SORTED (store));
g_return_if_fail (iter_is_valid (a, store));
g_return_if_fail (iter_is_valid (b, store));
priv = store->priv;
if (a->user_data == b->user_data)
return;
old_positions = save_positions (priv->seq);
g_sequence_swap (a->user_data, b->user_data);
order = generate_order (priv->seq, old_positions);
path = gtk_tree_path_new ();
gtk_tree_model_rows_reordered (GTK_TREE_MODEL (store),
path, NULL, order);
gtk_tree_path_free (path);
g_free (order);
}
static void
gtk_list_store_move_to (GtkListStore *store,
GtkTreeIter *iter,
gint new_pos)
{
GtkListStorePrivate *priv = store->priv;
GHashTable *old_positions;
GtkTreePath *path;
gint *order;
old_positions = save_positions (priv->seq);
g_sequence_move (iter->user_data, g_sequence_get_iter_at_pos (priv->seq, new_pos));
order = generate_order (priv->seq, old_positions);
path = gtk_tree_path_new ();
gtk_tree_model_rows_reordered (GTK_TREE_MODEL (store),
path, NULL, order);
gtk_tree_path_free (path);
g_free (order);
}
/**
* gtk_list_store_move_before:
* @store: A #GtkListStore.
* @iter: A #GtkTreeIter.
* @position: (allow-none): A #GtkTreeIter, or %NULL.
*
* Moves @iter in @store to the position before @position. Note that this
* function only works with unsorted stores. If @position is %NULL, @iter
* will be moved to the end of the list.
*
* Since: 2.2
**/
void
gtk_list_store_move_before (GtkListStore *store,
GtkTreeIter *iter,
GtkTreeIter *position)
{
gint pos;
g_return_if_fail (GTK_IS_LIST_STORE (store));
g_return_if_fail (!GTK_LIST_STORE_IS_SORTED (store));
g_return_if_fail (iter_is_valid (iter, store));
if (position)
g_return_if_fail (iter_is_valid (position, store));
if (position)
pos = g_sequence_iter_get_position (position->user_data);
else
pos = -1;
gtk_list_store_move_to (store, iter, pos);
}
/**
* gtk_list_store_move_after:
* @store: A #GtkListStore.
* @iter: A #GtkTreeIter.
* @position: (allow-none): A #GtkTreeIter or %NULL.
*
* Moves @iter in @store to the position after @position. Note that this
* function only works with unsorted stores. If @position is %NULL, @iter
* will be moved to the start of the list.
*
* Since: 2.2
**/
void
gtk_list_store_move_after (GtkListStore *store,
GtkTreeIter *iter,
GtkTreeIter *position)
{
gint pos;
g_return_if_fail (GTK_IS_LIST_STORE (store));
g_return_if_fail (!GTK_LIST_STORE_IS_SORTED (store));
g_return_if_fail (iter_is_valid (iter, store));
if (position)
g_return_if_fail (iter_is_valid (position, store));
if (position)
pos = g_sequence_iter_get_position (position->user_data) + 1;
else
pos = 0;
gtk_list_store_move_to (store, iter, pos);
}
/* Sorting */
static gint
gtk_list_store_compare_func (GSequenceIter *a,
GSequenceIter *b,
gpointer user_data)
{
GtkListStore *list_store = user_data;
GtkListStorePrivate *priv = list_store->priv;
GtkTreeIter iter_a;
GtkTreeIter iter_b;
gint retval;
GtkTreeIterCompareFunc func;
gpointer data;
if (priv->sort_column_id != -1)
{
GtkTreeDataSortHeader *header;
header = _gtk_tree_data_list_get_header (priv->sort_list,
priv->sort_column_id);
g_return_val_if_fail (header != NULL, 0);
g_return_val_if_fail (header->func != NULL, 0);
func = header->func;
data = header->data;
}
else
{
g_return_val_if_fail (priv->default_sort_func != NULL, 0);
func = priv->default_sort_func;
data = priv->default_sort_data;
}
iter_a.stamp = priv->stamp;
iter_a.user_data = (gpointer)a;
iter_b.stamp = priv->stamp;
iter_b.user_data = (gpointer)b;
g_assert (iter_is_valid (&iter_a, list_store));
g_assert (iter_is_valid (&iter_b, list_store));
retval = (* func) (GTK_TREE_MODEL (list_store), &iter_a, &iter_b, data);
if (priv->order == GTK_SORT_DESCENDING)
{
if (retval > 0)
retval = -1;
else if (retval < 0)
retval = 1;
}
return retval;
}
static void
gtk_list_store_sort (GtkListStore *list_store)
{
GtkListStorePrivate *priv = list_store->priv;
gint *new_order;
GtkTreePath *path;
GHashTable *old_positions;
if (!GTK_LIST_STORE_IS_SORTED (list_store) ||
g_sequence_get_length (priv->seq) <= 1)
return;
old_positions = save_positions (priv->seq);
g_sequence_sort_iter (priv->seq, gtk_list_store_compare_func, list_store);
/* Let the world know about our new order */
new_order = generate_order (priv->seq, old_positions);
path = gtk_tree_path_new ();
gtk_tree_model_rows_reordered (GTK_TREE_MODEL (list_store),
path, NULL, new_order);
gtk_tree_path_free (path);
g_free (new_order);
}
static gboolean
iter_is_sorted (GtkListStore *list_store,
GtkTreeIter *iter)
{
GSequenceIter *cmp;
if (!g_sequence_iter_is_begin (iter->user_data))
{
cmp = g_sequence_iter_prev (iter->user_data);
if (gtk_list_store_compare_func (cmp, iter->user_data, list_store) > 0)
return FALSE;
}
cmp = g_sequence_iter_next (iter->user_data);
if (!g_sequence_iter_is_end (cmp))
{
if (gtk_list_store_compare_func (iter->user_data, cmp, list_store) > 0)
return FALSE;
}
return TRUE;
}
static void
gtk_list_store_sort_iter_changed (GtkListStore *list_store,
GtkTreeIter *iter,
gint column)
{
GtkListStorePrivate *priv = list_store->priv;
GtkTreePath *path;
path = gtk_list_store_get_path (GTK_TREE_MODEL (list_store), iter);
gtk_tree_model_row_changed (GTK_TREE_MODEL (list_store), path, iter);
gtk_tree_path_free (path);
if (!iter_is_sorted (list_store, iter))
{
GHashTable *old_positions;
gint *order;
old_positions = save_positions (priv->seq);
g_sequence_sort_changed_iter (iter->user_data,
gtk_list_store_compare_func,
list_store);
order = generate_order (priv->seq, old_positions);
path = gtk_tree_path_new ();
gtk_tree_model_rows_reordered (GTK_TREE_MODEL (list_store),
path, NULL, order);
gtk_tree_path_free (path);
g_free (order);
}
}
static gboolean
gtk_list_store_get_sort_column_id (GtkTreeSortable *sortable,
gint *sort_column_id,
GtkSortType *order)
{
GtkListStore *list_store = GTK_LIST_STORE (sortable);
GtkListStorePrivate *priv = list_store->priv;
if (sort_column_id)
* sort_column_id = priv->sort_column_id;
if (order)
* order = priv->order;
if (priv->sort_column_id == GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID ||
priv->sort_column_id == GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID)
return FALSE;
return TRUE;
}
static void
gtk_list_store_set_sort_column_id (GtkTreeSortable *sortable,
gint sort_column_id,
GtkSortType order)
{
GtkListStore *list_store = GTK_LIST_STORE (sortable);
GtkListStorePrivate *priv = list_store->priv;
if ((priv->sort_column_id == sort_column_id) &&
(priv->order == order))
return;
if (sort_column_id != GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID)
{
if (sort_column_id != GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID)
{
GtkTreeDataSortHeader *header = NULL;
header = _gtk_tree_data_list_get_header (priv->sort_list,
sort_column_id);
/* We want to make sure that we have a function */
g_return_if_fail (header != NULL);
g_return_if_fail (header->func != NULL);
}
else
{
g_return_if_fail (priv->default_sort_func != NULL);
}
}
priv->sort_column_id = sort_column_id;
priv->order = order;
gtk_tree_sortable_sort_column_changed (sortable);
gtk_list_store_sort (list_store);
}
static void
gtk_list_store_set_sort_func (GtkTreeSortable *sortable,
gint sort_column_id,
GtkTreeIterCompareFunc func,
gpointer data,
GDestroyNotify destroy)
{
GtkListStore *list_store = GTK_LIST_STORE (sortable);
GtkListStorePrivate *priv = list_store->priv;
priv->sort_list = _gtk_tree_data_list_set_header (priv->sort_list,
sort_column_id,
func, data, destroy);
if (priv->sort_column_id == sort_column_id)
gtk_list_store_sort (list_store);
}
static void
gtk_list_store_set_default_sort_func (GtkTreeSortable *sortable,
GtkTreeIterCompareFunc func,
gpointer data,
GDestroyNotify destroy)
{
GtkListStore *list_store = GTK_LIST_STORE (sortable);
GtkListStorePrivate *priv = list_store->priv;
if (priv->default_sort_destroy)
{
GDestroyNotify d = priv->default_sort_destroy;
priv->default_sort_destroy = NULL;
d (priv->default_sort_data);
}
priv->default_sort_func = func;
priv->default_sort_data = data;
priv->default_sort_destroy = destroy;
if (priv->sort_column_id == GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID)
gtk_list_store_sort (list_store);
}
static gboolean
gtk_list_store_has_default_sort_func (GtkTreeSortable *sortable)
{
GtkListStore *list_store = GTK_LIST_STORE (sortable);
GtkListStorePrivate *priv = list_store->priv;
return (priv->default_sort_func != NULL);
}
/**
* gtk_list_store_insert_with_values:
* @list_store: A #GtkListStore
* @iter: (out) (allow-none): An unset #GtkTreeIter to set to the new row, or %NULL
* @position: position to insert the new row, or -1 to append after existing
* rows
* @...: pairs of column number and value, terminated with -1
*
* Creates a new row at @position. @iter will be changed to point to this new
* row. If @position is -1, or larger than the number of rows in the list, then
* the new row will be appended to the list. The row will be filled with the
* values given to this function.
*
* Calling
* <literal>gtk_list_store_insert_with_values (list_store, iter, position...)</literal>
* has the same effect as calling
* |[
* gtk_list_store_insert (list_store, iter, position);
* gtk_list_store_set (list_store, iter, ...);
* ]|
* with the difference that the former will only emit a row_inserted signal,
* while the latter will emit row_inserted, row_changed and, if the list store
* is sorted, rows_reordered. Since emitting the rows_reordered signal
* repeatedly can affect the performance of the program,
* gtk_list_store_insert_with_values() should generally be preferred when
* inserting rows in a sorted list store.
*
* Since: 2.6
*/
void
gtk_list_store_insert_with_values (GtkListStore *list_store,
GtkTreeIter *iter,
gint position,
...)
{
GtkListStorePrivate *priv;
GtkTreePath *path;
GSequence *seq;
GSequenceIter *ptr;
GtkTreeIter tmp_iter;
gint length;
gboolean changed = FALSE;
gboolean maybe_need_sort = FALSE;
va_list var_args;
/* FIXME: refactor to reduce overlap with gtk_list_store_set() */
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
priv = list_store->priv;
if (!iter)
iter = &tmp_iter;
priv->columns_dirty = TRUE;
seq = priv->seq;
length = g_sequence_get_length (seq);
if (position > length)
position = length;
ptr = g_sequence_get_iter_at_pos (seq, position);
ptr = g_sequence_insert_before (ptr, NULL);
iter->stamp = priv->stamp;
iter->user_data = ptr;
g_assert (iter_is_valid (iter, list_store));
priv->length++;
va_start (var_args, position);
gtk_list_store_set_valist_internal (list_store, iter,
&changed, &maybe_need_sort,
var_args);
va_end (var_args);
/* Don't emit rows_reordered here */
if (maybe_need_sort && GTK_LIST_STORE_IS_SORTED (list_store))
g_sequence_sort_changed_iter (iter->user_data,
gtk_list_store_compare_func,
list_store);
/* Just emit row_inserted */
path = gtk_list_store_get_path (GTK_TREE_MODEL (list_store), iter);
gtk_tree_model_row_inserted (GTK_TREE_MODEL (list_store), path, iter);
gtk_tree_path_free (path);
}
/**
* gtk_list_store_insert_with_valuesv:
* @list_store: A #GtkListStore
* @iter: (out) (allow-none): An unset #GtkTreeIter to set to the new row, or %NULL.
* @position: position to insert the new row
* @columns: (array length=n_values): an array of column numbers
* @values: (array length=n_values): an array of GValues
* @n_values: the length of the @columns and @values arrays
*
* A variant of gtk_list_store_insert_with_values() which
* takes the columns and values as two arrays, instead of
* varargs. This function is mainly intended for
* language-bindings.
*
* Since: 2.6
*/
void
gtk_list_store_insert_with_valuesv (GtkListStore *list_store,
GtkTreeIter *iter,
gint position,
gint *columns,
GValue *values,
gint n_values)
{
GtkListStorePrivate *priv;
GtkTreePath *path;
GSequence *seq;
GSequenceIter *ptr;
GtkTreeIter tmp_iter;
gint length;
gboolean changed = FALSE;
gboolean maybe_need_sort = FALSE;
/* FIXME refactor to reduce overlap with
* gtk_list_store_insert_with_values()
*/
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
priv = list_store->priv;
if (!iter)
iter = &tmp_iter;
priv->columns_dirty = TRUE;
seq = priv->seq;
length = g_sequence_get_length (seq);
if (position > length)
position = length;
ptr = g_sequence_get_iter_at_pos (seq, position);
ptr = g_sequence_insert_before (ptr, NULL);
iter->stamp = priv->stamp;
iter->user_data = ptr;
g_assert (iter_is_valid (iter, list_store));
priv->length++;
gtk_list_store_set_vector_internal (list_store, iter,
&changed, &maybe_need_sort,
columns, values, n_values);
/* Don't emit rows_reordered here */
if (maybe_need_sort && GTK_LIST_STORE_IS_SORTED (list_store))
g_sequence_sort_changed_iter (iter->user_data,
gtk_list_store_compare_func,
list_store);
/* Just emit row_inserted */
path = gtk_list_store_get_path (GTK_TREE_MODEL (list_store), iter);
gtk_tree_model_row_inserted (GTK_TREE_MODEL (list_store), path, iter);
gtk_tree_path_free (path);
}
/* GtkBuildable custom tag implementation
*
* <columns>
* <column type="..."/>
* <column type="..."/>
* </columns>
*/
typedef struct {
gboolean translatable;
gchar *context;
int id;
} ColInfo;
typedef struct {
GtkBuilder *builder;
GObject *object;
GSList *column_type_names;
GType *column_types;
GValue *values;
gint *colids;
ColInfo **columns;
gint last_row;
gint n_columns;
gint row_column;
GQuark error_quark;
gboolean is_data;
const gchar *domain;
} SubParserData;
static void
list_store_start_element (GMarkupParseContext *context,
const gchar *element_name,
const gchar **names,
const gchar **values,
gpointer user_data,
GError **error)
{
guint i;
SubParserData *data = (SubParserData*)user_data;
if (strcmp (element_name, "col") == 0)
{
int i, id = -1;
gchar *context = NULL;
gboolean translatable = FALSE;
ColInfo *info;
if (data->row_column >= data->n_columns)
{
g_set_error (error, data->error_quark, 0,
"Too many columns, maximum is %d\n", data->n_columns - 1);
return;
}
for (i = 0; names[i]; i++)
if (strcmp (names[i], "id") == 0)
{
errno = 0;
id = atoi (values[i]);
if (errno)
{
g_set_error (error, data->error_quark, 0,
"the id tag %s could not be converted to an integer",
values[i]);
return;
}
if (id < 0 || id >= data->n_columns)
{
g_set_error (error, data->error_quark, 0,
"id value %d out of range", id);
return;
}
}
else if (strcmp (names[i], "translatable") == 0)
{
if (!_gtk_builder_boolean_from_string (values[i], &translatable,
error))
return;
}
else if (strcmp (names[i], "comments") == 0)
{
/* do nothing, comments are for translators */
}
else if (strcmp (names[i], "context") == 0)
{
context = g_strdup (values[i]);
}
if (id == -1)
{
g_set_error (error, data->error_quark, 0,
"<col> needs an id attribute");
return;
}
info = g_slice_new0 (ColInfo);
info->translatable = translatable;
info->context = context;
info->id = id;
data->colids[data->row_column] = id;
data->columns[data->row_column] = info;
data->row_column++;
data->is_data = TRUE;
}
else if (strcmp (element_name, "row") == 0)
;
else if (strcmp (element_name, "column") == 0)
for (i = 0; names[i]; i++)
if (strcmp (names[i], "type") == 0)
data->column_type_names = g_slist_prepend (data->column_type_names,
g_strdup (values[i]));
else if (strcmp (element_name, "columns") == 0)
;
else if (strcmp (element_name, "data") == 0)
;
else
g_set_error (error, data->error_quark, 0,
"Unknown start tag: %s", element_name);
}
static void
list_store_end_element (GMarkupParseContext *context,
const gchar *element_name,
gpointer user_data,
GError **error)
{
SubParserData *data = (SubParserData*)user_data;
g_assert (data->builder);
if (strcmp (element_name, "row") == 0)
{
GtkTreeIter iter;
int i;
gtk_list_store_insert_with_valuesv (GTK_LIST_STORE (data->object),
&iter,
data->last_row,
data->colids,
data->values,
data->row_column);
for (i = 0; i < data->row_column; i++)
{
ColInfo *info = data->columns[i];
g_free (info->context);
g_slice_free (ColInfo, info);
data->columns[i] = NULL;
g_value_unset (&data->values[i]);
}
g_free (data->values);
data->values = g_new0 (GValue, data->n_columns);
data->last_row++;
data->row_column = 0;
}
else if (strcmp (element_name, "columns") == 0)
{
GType *column_types;
GSList *l;
int i;
GType type;
data->column_type_names = g_slist_reverse (data->column_type_names);
column_types = g_new0 (GType, g_slist_length (data->column_type_names));
for (l = data->column_type_names, i = 0; l; l = l->next, i++)
{
type = gtk_builder_get_type_from_name (data->builder, l->data);
if (type == G_TYPE_INVALID)
{
g_warning ("Unknown type %s specified in treemodel %s",
(const gchar*)l->data,
gtk_buildable_get_name (GTK_BUILDABLE (data->object)));
continue;
}
column_types[i] = type;
g_free (l->data);
}
gtk_list_store_set_column_types (GTK_LIST_STORE (data->object), i,
column_types);
g_free (column_types);
}
else if (strcmp (element_name, "col") == 0)
data->is_data = FALSE;
else if (strcmp (element_name, "data") == 0)
;
else if (strcmp (element_name, "column") == 0)
;
else
g_set_error (error, data->error_quark, 0,
"Unknown end tag: %s", element_name);
}
static void
list_store_text (GMarkupParseContext *context,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error)
{
SubParserData *data = (SubParserData*)user_data;
gint i;
GError *tmp_error = NULL;
gchar *string;
ColInfo *info;
if (!data->is_data)
return;
i = data->row_column - 1;
info = data->columns[i];
string = g_strndup (text, text_len);
if (info->translatable && text_len)
{
gchar *translated;
/* FIXME: This will not use the domain set in the .ui file,
* since the parser is not telling the builder about the domain.
* However, it will work for gtk_builder_set_translation_domain() calls.
*/
translated = _gtk_builder_parser_translate (data->domain,
info->context,
string);
g_free (string);
string = translated;
}
if (!gtk_builder_value_from_string_type (data->builder,
data->column_types[info->id],
string,
&data->values[i],
&tmp_error))
{
g_set_error (error,
tmp_error->domain,
tmp_error->code,
"Could not convert '%s' to type %s: %s\n",
text, g_type_name (data->column_types[info->id]),
tmp_error->message);
g_error_free (tmp_error);
}
g_free (string);
}
static const GMarkupParser list_store_parser =
{
list_store_start_element,
list_store_end_element,
list_store_text
};
static gboolean
gtk_list_store_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data)
{
SubParserData *parser_data;
if (child)
return FALSE;
if (strcmp (tagname, "columns") == 0)
{
parser_data = g_slice_new0 (SubParserData);
parser_data->builder = builder;
parser_data->object = G_OBJECT (buildable);
parser_data->column_type_names = NULL;
*parser = list_store_parser;
*data = parser_data;
return TRUE;
}
else if (strcmp (tagname, "data") == 0)
{
gint n_columns = gtk_list_store_get_n_columns (GTK_TREE_MODEL (buildable));
if (n_columns == 0)
g_error ("Cannot append data to an empty model");
parser_data = g_slice_new0 (SubParserData);
parser_data->builder = builder;
parser_data->object = G_OBJECT (buildable);
parser_data->values = g_new0 (GValue, n_columns);
parser_data->colids = g_new0 (gint, n_columns);
parser_data->columns = g_new0 (ColInfo*, n_columns);
parser_data->column_types = GTK_LIST_STORE (buildable)->priv->column_headers;
parser_data->n_columns = n_columns;
parser_data->last_row = 0;
parser_data->error_quark = g_quark_from_static_string ("GtkListStore");
parser_data->domain = gtk_builder_get_translation_domain (builder);
*parser = list_store_parser;
*data = parser_data;
return TRUE;
}
else
g_warning ("Unknown custom list store tag: %s", tagname);
return FALSE;
}
static void
gtk_list_store_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer *data)
{
SubParserData *sub = (SubParserData*)data;
if (strcmp (tagname, "columns") == 0)
{
g_slist_free (sub->column_type_names);
g_slice_free (SubParserData, sub);
}
else if (strcmp (tagname, "data") == 0)
{
int i;
for (i = 0; i < sub->n_columns; i++)
{
ColInfo *info = sub->columns[i];
if (info)
{
g_free (info->context);
g_slice_free (ColInfo, info);
}
}
g_free (sub->colids);
g_free (sub->columns);
g_free (sub->values);
g_slice_free (SubParserData, sub);
}
else
g_warning ("Unknown custom list store tag: %s", tagname);
}
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