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gtk2/gtk/gtkliststore.c
Johan Dahlin eee7bb2b2e [annotations] Add allow-none 
This commit was created using a script that searched for all docstrings
containing a parameter and the string 'or %NULL'.
Gdk backends and demos excluded as they are not part of a public API

https://bugzilla.gnome.org/show_bug.cgi?id=610474
2010-04-03 20:56:15 -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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#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"
#include "gtkalias.h"
#define GTK_LIST_STORE_IS_SORTED(list) (((GtkListStore*)(list))->sort_column_id != GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID)
#define VALID_ITER(iter, list_store) ((iter)!= NULL && (iter)->user_data != NULL && list_store->stamp == (iter)->stamp && !g_sequence_iter_is_end ((iter)->user_data) && g_sequence_iter_get_sequence ((iter)->user_data) == list_store->seq)
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_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;
}
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_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)
{
list_store->seq = g_sequence_new (NULL);
list_store->sort_list = NULL;
list_store->stamp = g_random_int ();
list_store->sort_column_id = GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID;
list_store->columns_dirty = FALSE;
list_store->length = 0;
}
/**
* gtk_list_store_new:
* @n_columns: number of columns in the list store
* @Varargs: 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);
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 none): a new #GtkListStore
**/
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)
{
gint i;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (list_store->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)
{
int i;
if (list_store->n_columns == n_columns)
return;
list_store->column_headers = g_renew (GType, list_store->column_headers, n_columns);
for (i = list_store->n_columns; i < n_columns; i++)
list_store->column_headers[i] = G_TYPE_INVALID;
list_store->n_columns = n_columns;
if (list_store->sort_list)
_gtk_tree_data_list_header_free (list_store->sort_list);
list_store->sort_list = _gtk_tree_data_list_header_new (n_columns, list_store->column_headers);
}
static void
gtk_list_store_set_column_type (GtkListStore *list_store,
gint column,
GType type)
{
if (!_gtk_tree_data_list_check_type (type))
{
g_warning ("%s: Invalid type %s\n", G_STRLOC, g_type_name (type));
return;
}
list_store->column_headers[column] = type;
}
static void
gtk_list_store_finalize (GObject *object)
{
GtkListStore *list_store = GTK_LIST_STORE (object);
g_sequence_foreach (list_store->seq,
(GFunc) _gtk_tree_data_list_free, list_store->column_headers);
g_sequence_free (list_store->seq);
_gtk_tree_data_list_header_free (list_store->sort_list);
g_free (list_store->column_headers);
if (list_store->default_sort_destroy)
{
GDestroyNotify d = list_store->default_sort_destroy;
list_store->default_sort_destroy = NULL;
d (list_store->default_sort_data);
list_store->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 = (GtkListStore *) tree_model;
list_store->columns_dirty = TRUE;
return list_store->n_columns;
}
static GType
gtk_list_store_get_column_type (GtkTreeModel *tree_model,
gint index)
{
GtkListStore *list_store = (GtkListStore *) tree_model;
g_return_val_if_fail (index < GTK_LIST_STORE (tree_model)->n_columns,
G_TYPE_INVALID);
list_store->columns_dirty = TRUE;
return list_store->column_headers[index];
}
static gboolean
gtk_list_store_get_iter (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreePath *path)
{
GtkListStore *list_store = (GtkListStore *) tree_model;
GSequence *seq;
gint i;
list_store->columns_dirty = TRUE;
seq = list_store->seq;
i = gtk_tree_path_get_indices (path)[0];
if (i >= g_sequence_get_length (seq))
return FALSE;
iter->stamp = list_store->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)
{
GtkTreePath *path;
g_return_val_if_fail (iter->stamp == GTK_LIST_STORE (tree_model)->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 = (GtkListStore *) tree_model;
GtkTreeDataList *list;
gint tmp_column = column;
g_return_if_fail (column < list_store->n_columns);
g_return_if_fail (VALID_ITER (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, list_store->column_headers[column]);
else
_gtk_tree_data_list_node_to_value (list,
list_store->column_headers[column],
value);
}
static gboolean
gtk_list_store_iter_next (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
gboolean retval;
g_return_val_if_fail (GTK_LIST_STORE (tree_model)->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_children (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent)
{
GtkListStore *list_store = (GtkListStore *) tree_model;
/* this is a list, nodes have no children */
if (parent)
{
iter->stamp = 0;
return FALSE;
}
if (g_sequence_get_length (list_store->seq) > 0)
{
iter->stamp = list_store->stamp;
iter->user_data = g_sequence_get_begin_iter (list_store->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 = (GtkListStore *) tree_model;
if (iter == NULL)
return g_sequence_get_length (list_store->seq);
g_return_val_if_fail (list_store->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 = (GtkListStore *) tree_model;
GSequenceIter *child;
iter->stamp = 0;
if (parent)
return FALSE;
child = g_sequence_get_iter_at_pos (list_store->seq, n);
if (g_sequence_iter_is_end (child))
return FALSE;
iter->stamp = list_store->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)
{
GtkTreeDataList *list;
GtkTreeDataList *prev;
gint old_column = column;
GValue real_value = {0, };
gboolean converted = FALSE;
gboolean retval = FALSE;
if (! g_type_is_a (G_VALUE_TYPE (value), list_store->column_headers[column]))
{
if (! (g_value_type_compatible (G_VALUE_TYPE (value), list_store->column_headers[column]) &&
g_value_type_compatible (list_store->column_headers[column], G_VALUE_TYPE (value))))
{
g_warning ("%s: Unable to convert from %s to %s\n",
G_STRLOC,
g_type_name (G_VALUE_TYPE (value)),
g_type_name (list_store->column_headers[column]));
return retval;
}
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 (list_store->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)
{
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (VALID_ITER (iter, list_store));
g_return_if_fail (column >= 0 && column < list_store->n_columns);
g_return_if_fail (G_IS_VALUE (value));
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)
{
GtkTreeIterCompareFunc func = NULL;
if (GTK_LIST_STORE_IS_SORTED (list_store))
{
if (list_store->sort_column_id != -1)
{
GtkTreeDataSortHeader *header;
header = _gtk_tree_data_list_get_header (list_store->sort_list,
list_store->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 = list_store->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)
{
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] == list_store->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)
{
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 = { 0, };
gchar *error = NULL;
if (column < 0 || column >= list_store->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_init (&value, list_store->column_headers[column]);
G_VALUE_COLLECT (&value, 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 == list_store->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
*/
void
gtk_list_store_set_valuesv (GtkListStore *list_store,
GtkTreeIter *iter,
gint *columns,
GValue *values,
gint n_values)
{
gboolean emit_signal = FALSE;
gboolean maybe_need_sort = FALSE;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (VALID_ITER (iter, list_store));
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, list_store->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)
{
gboolean emit_signal = FALSE;
gboolean maybe_need_sort = FALSE;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (VALID_ITER (iter, list_store));
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, list_store->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
* @Varargs: 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 copied or referenced by the store if appropriate.
**/
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)
{
GtkTreePath *path;
GSequenceIter *ptr, *next;
g_return_val_if_fail (GTK_IS_LIST_STORE (list_store), FALSE);
g_return_val_if_fail (VALID_ITER (iter, list_store), FALSE);
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), list_store->column_headers);
g_sequence_remove (iter->user_data);
list_store->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 = list_store->stamp;
iter->user_data = next;
return TRUE;
}
}
/**
* gtk_list_store_insert:
* @list_store: A #GtkListStore
* @iter: 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)
{
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);
list_store->columns_dirty = TRUE;
seq = list_store->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 = list_store->stamp;
iter->user_data = ptr;
g_assert (VALID_ITER (iter, list_store));
list_store->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: 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)
{
GSequenceIter *after;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
if (sibling)
g_return_if_fail (VALID_ITER (sibling, list_store));
if (!sibling)
after = g_sequence_get_end_iter (list_store->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: 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)
{
GSequenceIter *after;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
if (sibling)
g_return_if_fail (VALID_ITER (sibling, list_store));
if (!sibling)
after = g_sequence_get_begin_iter (list_store->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: 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: 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)
{
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
gtk_list_store_insert (list_store, iter, g_sequence_get_length (list_store->seq));
}
static void
gtk_list_store_increment_stamp (GtkListStore *list_store)
{
do
{
list_store->stamp++;
}
while (list_store->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)
{
GtkTreeIter iter;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
while (g_sequence_get_length (list_store->seq) > 0)
{
iter.stamp = list_store->stamp;
iter.user_data = g_sequence_get_begin_iter (list_store->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);
if (!VALID_ITER (iter, list_store))
return FALSE;
if (g_sequence_iter_get_sequence (iter->user_data) != list_store->seq)
return FALSE;
return TRUE;
}
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;
GtkListStore *list_store;
GtkTreeModel *src_model = NULL;
GtkTreePath *src_path = NULL;
gboolean retval = FALSE;
tree_model = GTK_TREE_MODEL (drag_dest);
list_store = GTK_LIST_STORE (drag_dest);
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,
list_store->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 = list_store->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)->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:
* @store: A #GtkListStore.
* @new_order: 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)
{
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);
order = g_new (gint, g_sequence_get_length (store->seq));
for (i = 0; i < g_sequence_get_length (store->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 (store->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 (store->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)
{
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 (VALID_ITER (a, store));
g_return_if_fail (VALID_ITER (b, store));
if (a->user_data == b->user_data)
return;
old_positions = save_positions (store->seq);
g_sequence_swap (a->user_data, b->user_data);
order = generate_order (store->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)
{
GHashTable *old_positions;
GtkTreePath *path;
gint *order;
old_positions = save_positions (store->seq);
g_sequence_move (iter->user_data, g_sequence_get_iter_at_pos (store->seq, new_pos));
order = generate_order (store->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 (VALID_ITER (iter, store));
if (position)
g_return_if_fail (VALID_ITER (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 (VALID_ITER (iter, store));
if (position)
g_return_if_fail (VALID_ITER (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;
GtkTreeIter iter_a;
GtkTreeIter iter_b;
gint retval;
GtkTreeIterCompareFunc func;
gpointer data;
if (list_store->sort_column_id != -1)
{
GtkTreeDataSortHeader *header;
header = _gtk_tree_data_list_get_header (list_store->sort_list,
list_store->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 (list_store->default_sort_func != NULL, 0);
func = list_store->default_sort_func;
data = list_store->default_sort_data;
}
iter_a.stamp = list_store->stamp;
iter_a.user_data = (gpointer)a;
iter_b.stamp = list_store->stamp;
iter_b.user_data = (gpointer)b;
g_assert (VALID_ITER (&iter_a, list_store));
g_assert (VALID_ITER (&iter_b, list_store));
retval = (* func) (GTK_TREE_MODEL (list_store), &iter_a, &iter_b, data);
if (list_store->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)
{
gint *new_order;
GtkTreePath *path;
GHashTable *old_positions;
if (!GTK_LIST_STORE_IS_SORTED (list_store) ||
g_sequence_get_length (list_store->seq) <= 1)
return;
old_positions = save_positions (list_store->seq);
g_sequence_sort_iter (list_store->seq, gtk_list_store_compare_func, list_store);
/* Let the world know about our new order */
new_order = generate_order (list_store->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)
{
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 (list_store->seq);
g_sequence_sort_changed_iter (iter->user_data,
gtk_list_store_compare_func,
list_store);
order = generate_order (list_store->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 = (GtkListStore *) sortable;
if (sort_column_id)
* sort_column_id = list_store->sort_column_id;
if (order)
* order = list_store->order;
if (list_store->sort_column_id == GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID ||
list_store->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 = (GtkListStore *) sortable;
if ((list_store->sort_column_id == sort_column_id) &&
(list_store->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 (list_store->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 (list_store->default_sort_func != NULL);
}
}
list_store->sort_column_id = sort_column_id;
list_store->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 = (GtkListStore *) sortable;
list_store->sort_list = _gtk_tree_data_list_set_header (list_store->sort_list,
sort_column_id,
func, data, destroy);
if (list_store->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 = (GtkListStore *) sortable;
if (list_store->default_sort_destroy)
{
GDestroyNotify d = list_store->default_sort_destroy;
list_store->default_sort_destroy = NULL;
d (list_store->default_sort_data);
}
list_store->default_sort_func = func;
list_store->default_sort_data = data;
list_store->default_sort_destroy = destroy;
if (list_store->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 = (GtkListStore *) sortable;
return (list_store->default_sort_func != NULL);
}
/**
* gtk_list_store_insert_with_values:
* @list_store: A #GtkListStore
* @iter: (allow-none): An unset #GtkTreeIter to set to the new row, or %NULL.
* @position: position to insert the new row
* @Varargs: 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 larger than the number of rows on 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,
...)
{
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));
if (!iter)
iter = &tmp_iter;
list_store->columns_dirty = TRUE;
seq = list_store->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 = list_store->stamp;
iter->user_data = ptr;
g_assert (VALID_ITER (iter, list_store));
list_store->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: (allow-none): An unset #GtkTreeIter to set to the new row, or %NULL.
* @position: position to insert the new row
* @columns: an array of column numbers
* @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)
{
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));
if (!iter)
iter = &tmp_iter;
list_store->columns_dirty = TRUE;
seq = list_store->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 = list_store->stamp;
iter->user_data = ptr;
g_assert (VALID_ITER (iter, list_store));
list_store->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)->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);
}
#define __GTK_LIST_STORE_C__
#include "gtkaliasdef.c"
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