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gtk2/gtk/gtktreemodelsort.c
Kristian Rietveld b5ad197761 preparation for surgery ditto 
Wed Oct  3 20:29:29 2001  Kristian Rietveld  <kristian@planet.nl>

        * gtk/gtktreemodelsort.[ch]: preparation for surgery
        * tests/testtreesort.c: ditto
2001-10-03 18:29:20 +00:00

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/* gtktreemodelsort.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.
*/
/* NOTE: There is a potential for confusion in this code as to whether an iter,
* path or value refers to the GtkTreeModelSort model, or the child model being
* sorted. As a convention, variables referencing the child model will have an
* s_ prefix before them (ie. s_iter, s_value, s_path);
*/
#include "gtktreemodelsort.h"
#include "gtktreesortable.h"
#include "gtktreestore.h"
#include "gtksignal.h"
#include "gtktreedatalist.h"
#include <string.h>
typedef struct _SortElt SortElt;
struct _SortElt
{
GtkTreeIter iter;
SortElt *parent;
GArray *children;
gint offset;
gint ref;
};
typedef struct _SortData SortData;
struct _SortData
{
GtkTreeModelSort *tree_model_sort;
GtkTreePath *parent_a;
GtkTreePath *parent_b;
};
typedef struct _SortTuple SortTuple;
struct _SortTuple
{
SortElt *elt;
GArray *children;
gint offset;
};
#define get_array(e,t) ((GArray *)((e)->parent?(e)->parent->children:GTK_TREE_MODEL_SORT(t)->root))
/* object init and signal handlers */
static void gtk_tree_model_sort_init (GtkTreeModelSort *tree_model_sort);
static void gtk_tree_model_sort_class_init (GtkTreeModelSortClass *tree_model_sort_class);
static void gtk_tree_model_sort_tree_model_init (GtkTreeModelIface *iface);
static void gtk_tree_model_sort_tree_sortable_init (GtkTreeSortableIface *iface);
static void gtk_tree_model_sort_finalize (GObject *object);
static void gtk_tree_model_sort_row_changed (GtkTreeModel *model,
GtkTreePath *start_path,
GtkTreeIter *start_iter,
gpointer data);
static void gtk_tree_model_sort_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_model_sort_row_has_child_toggled (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_model_sort_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer data);
static void gtk_tree_model_sort_rows_reordered (GtkTreeModel *s_model,
GtkTreePath *s_path,
GtkTreeIter *s_iter,
gint *new_order,
gpointer data);
/* TreeModel interface */
static gint gtk_tree_model_sort_get_n_columns (GtkTreeModel *tree_model);
static GType gtk_tree_model_sort_get_column_type (GtkTreeModel *tree_model,
gint index);
static gboolean gtk_tree_model_sort_get_iter (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreePath *path);
static GtkTreePath *gtk_tree_model_sort_get_path (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static void gtk_tree_model_sort_get_value (GtkTreeModel *tree_model,
GtkTreeIter *iter,
gint column,
GValue *value);
static gboolean gtk_tree_model_sort_iter_next (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gboolean gtk_tree_model_sort_iter_children (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent);
static gboolean gtk_tree_model_sort_iter_has_child (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gint gtk_tree_model_sort_iter_n_children (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gboolean gtk_tree_model_sort_iter_nth_child (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent,
gint n);
static gboolean gtk_tree_model_sort_iter_parent (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *child);
static void gtk_tree_model_sort_ref_node (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static void gtk_tree_model_sort_unref_node (GtkTreeModel *tree_model,
GtkTreeIter *iter);
/* TreeSortable interface */
static gboolean gtk_tree_model_sort_get_sort_column_id (GtkTreeSortable *sortable,
gint *sort_column_id,
GtkSortType *order);
static void gtk_tree_model_sort_set_sort_column_id (GtkTreeSortable *sortable,
gint sort_column_id,
GtkSortType order);
static void gtk_tree_model_sort_set_sort_func (GtkTreeSortable *sortable,
gint sort_column_id,
GtkTreeIterCompareFunc func,
gpointer data,
GtkDestroyNotify destroy);
static void gtk_tree_model_sort_set_default_sort_func (GtkTreeSortable *sortable,
GtkTreeIterCompareFunc func,
gpointer data,
GtkDestroyNotify destroy);
static gboolean gtk_tree_model_sort_has_default_sort_func (GtkTreeSortable *sortable);
/* internal functions */
static gboolean gtk_tree_model_sort_get_iter_helper (GtkTreeModelSort *tree_model_sort,
GArray *array,
GtkTreeIter *iter,
gint depth,
GtkTreePath *path);
static gint gtk_tree_model_sort_compare_func (gconstpointer a,
gconstpointer b,
gpointer user_data);
static gint gtk_tree_model_sort_offset_compare_func (gconstpointer a,
gconstpointer b,
gpointer user_data);
static void gtk_tree_model_sort_sort_helper (GtkTreeModelSort *tree_model_sort,
GArray *parent,
gboolean recurse,
gboolean emit_reordered);
static void gtk_tree_model_sort_sort (GtkTreeModelSort *tree_model_sort);
static gint gtk_tree_model_sort_array_find_insert (GtkTreeModelSort *tree_model_sort,
GArray *array,
GtkTreeIter *iter,
gboolean skip_sort_elt);
static GtkTreePath *gtk_tree_model_sort_generate_path_index(SortElt *item,
GtkTreeModelSort *tree_model_sort);
static GtkTreePath *gtk_tree_model_sort_generate_path (SortElt *item);
static GtkTreePath *gtk_tree_model_sort_convert_path_real (GtkTreeModelSort *tree_model_sort,
GtkTreePath *child_path,
gboolean build_children);
static void gtk_tree_model_sort_convert_iter_real (GtkTreeModelSort *tree_model_sort,
GtkTreeIter *sort_iter,
GtkTreeIter *child_iter,
gboolean build_children);
static void gtk_tree_model_sort_build_level_sort (GtkTreeModelSort *tree_model_sort,
SortElt *place);
static void gtk_tree_model_sort_build_level (GtkTreeModelSort *tree_model_sort,
SortElt *place);
static void gtk_tree_model_sort_free_level (GArray *array);
static void sort_elt_get_iter (GtkTreeModelSort *tree_model_sort,
SortElt *elt,
GtkTreeIter *child_iter);
GType
gtk_tree_model_sort_get_type (void)
{
static GType tree_model_sort_type = 0;
if (!tree_model_sort_type)
{
static const GTypeInfo tree_model_sort_info =
{
sizeof (GtkTreeModelSortClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_tree_model_sort_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkTreeModelSort),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_tree_model_sort_init
};
static const GInterfaceInfo tree_model_info =
{
(GInterfaceInitFunc) gtk_tree_model_sort_tree_model_init,
NULL,
NULL
};
static const GInterfaceInfo sortable_info =
{
(GInterfaceInitFunc) gtk_tree_model_sort_tree_sortable_init,
NULL,
NULL
};
tree_model_sort_type = g_type_register_static (G_TYPE_OBJECT,
"GtkTreeModelSort",
&tree_model_sort_info, 0);
g_type_add_interface_static (tree_model_sort_type,
GTK_TYPE_TREE_MODEL,
&tree_model_info);
g_type_add_interface_static (tree_model_sort_type,
GTK_TYPE_TREE_SORTABLE,
&sortable_info);
}
return tree_model_sort_type;
}
static void
gtk_tree_model_sort_class_init (GtkTreeModelSortClass *tree_model_sort_class)
{
GObjectClass *object_class;
object_class = (GObjectClass *) tree_model_sort_class;
object_class->finalize = gtk_tree_model_sort_finalize;
}
static void
gtk_tree_model_sort_tree_model_init (GtkTreeModelIface *iface)
{
iface->get_n_columns = gtk_tree_model_sort_get_n_columns;
iface->get_column_type = gtk_tree_model_sort_get_column_type;
iface->get_iter = gtk_tree_model_sort_get_iter;
iface->get_path = gtk_tree_model_sort_get_path;
iface->get_value = gtk_tree_model_sort_get_value;
iface->iter_next = gtk_tree_model_sort_iter_next;
iface->iter_children = gtk_tree_model_sort_iter_children;
iface->iter_has_child = gtk_tree_model_sort_iter_has_child;
iface->iter_n_children = gtk_tree_model_sort_iter_n_children;
iface->iter_nth_child = gtk_tree_model_sort_iter_nth_child;
iface->iter_parent = gtk_tree_model_sort_iter_parent;
iface->ref_node = gtk_tree_model_sort_ref_node;
iface->unref_node = gtk_tree_model_sort_unref_node;
}
static void
gtk_tree_model_sort_tree_sortable_init (GtkTreeSortableIface *iface)
{
iface->get_sort_column_id = gtk_tree_model_sort_get_sort_column_id;
iface->set_sort_column_id = gtk_tree_model_sort_set_sort_column_id;
iface->set_sort_func = gtk_tree_model_sort_set_sort_func;
iface->set_default_sort_func = gtk_tree_model_sort_set_default_sort_func;
iface->has_default_sort_func = gtk_tree_model_sort_has_default_sort_func;
}
static void
gtk_tree_model_sort_init (GtkTreeModelSort *tree_model_sort)
{
tree_model_sort->sort_column_id = -1;
tree_model_sort->stamp = g_random_int ();
tree_model_sort->cache_child_iters = FALSE;
tree_model_sort->root = NULL;
tree_model_sort->sort_list = NULL;
}
/**
* gtk_tree_model_sort_new:
*
* Creates a new #GtkTreeModel without child_model.
*
* Returns: A new #GtkTreeModel.
*/
GtkTreeModel *
gtk_tree_model_sort_new (void)
{
return GTK_TREE_MODEL (g_object_new (gtk_tree_model_sort_get_type (), NULL));
}
/**
* gtk_tree_model_sort_new_with_model:
* @child_model: A #GtkTreeModel
*
* Creates a new #GtkTreeModel, with @child_model as the child_model.
*
* Return value: A new #GtkTreeModel.
*/
GtkTreeModel *
gtk_tree_model_sort_new_with_model (GtkTreeModel *child_model)
{
GtkTreeModel *retval;
retval = gtk_tree_model_sort_new ();
gtk_tree_model_sort_set_model (GTK_TREE_MODEL_SORT (retval), child_model);
return retval;
}
/**
* gtk_tree_model_sort_set_model:
* @tree_model_sort: The #GtkTreeModelSort.
* @child_model: A #GtkTreeModel, or NULL.
*
* Sets the model of @tree_model_sort to be @model. If @model is NULL, then the * old model is unset.
**/
void
gtk_tree_model_sort_set_model (GtkTreeModelSort *tree_model_sort,
GtkTreeModel *child_model)
{
g_return_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model_sort));
if (child_model)
g_object_ref (G_OBJECT (child_model));
if (tree_model_sort->child_model)
{
g_signal_handler_disconnect (G_OBJECT (tree_model_sort->child_model),
tree_model_sort->changed_id);
g_signal_handler_disconnect (G_OBJECT (tree_model_sort->child_model),
tree_model_sort->inserted_id);
g_signal_handler_disconnect (G_OBJECT (tree_model_sort->child_model),
tree_model_sort->has_child_toggled_id);
g_signal_handler_disconnect (G_OBJECT (tree_model_sort->child_model),
tree_model_sort->deleted_id);
g_signal_handler_disconnect (G_OBJECT (tree_model_sort->child_model),
tree_model_sort->reordered_id);
gtk_tree_model_sort_free_level (tree_model_sort->root);
g_object_unref (G_OBJECT (tree_model_sort->child_model));
}
if (tree_model_sort->root)
{
gtk_tree_model_sort_free_level (tree_model_sort->root);
tree_model_sort->root = NULL;
}
if (tree_model_sort->sort_list)
{
_gtk_tree_data_list_header_free (tree_model_sort->sort_list);
tree_model_sort->sort_list = NULL;
}
tree_model_sort->child_model = child_model;
if (child_model)
{
GType *types;
gint i, n_columns;
tree_model_sort->changed_id =
g_signal_connect (child_model,
"row_changed",
G_CALLBACK (gtk_tree_model_sort_row_changed),
tree_model_sort);
tree_model_sort->inserted_id =
g_signal_connect (child_model,
"row_inserted",
G_CALLBACK (gtk_tree_model_sort_row_inserted),
tree_model_sort);
tree_model_sort->has_child_toggled_id =
g_signal_connect (child_model,
"row_has_child_toggled",
G_CALLBACK (gtk_tree_model_sort_row_has_child_toggled),
tree_model_sort);
tree_model_sort->deleted_id =
g_signal_connect (child_model,
"row_deleted",
G_CALLBACK (gtk_tree_model_sort_row_deleted),
tree_model_sort);
tree_model_sort->reordered_id =
g_signal_connect (child_model,
"rows_reordered",
G_CALLBACK (gtk_tree_model_sort_rows_reordered),
tree_model_sort);
tree_model_sort->flags = gtk_tree_model_get_flags (child_model);
n_columns = gtk_tree_model_get_n_columns (child_model);
types = g_new (GType, n_columns);
for (i = 0; i < n_columns; i++)
types[i] = gtk_tree_model_get_column_type (child_model, i);
tree_model_sort->sort_list = _gtk_tree_data_list_header_new (n_columns,
types);
g_free (types);
if (tree_model_sort->flags & GTK_TREE_MODEL_ITERS_PERSIST)
tree_model_sort->cache_child_iters = TRUE;
else
tree_model_sort->cache_child_iters = FALSE;
/* ugly hack - ugly ugly ugly (do not try at home) */
tree_model_sort->default_sort_func =
(GtkTreeIterCompareFunc)0x1;
}
}
/**
* gtk_tree_model_sort_get_model:
* @tree_model: a #GtkTreeModelSort
*
* Returns the model the #GtkTreeModelSort is sorting.
*
* Return value: the "child model" being sorted
**/
GtkTreeModel*
gtk_tree_model_sort_get_model (GtkTreeModelSort *tree_model)
{
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model), NULL);
return tree_model->child_model;
}
/**
* gtk_tree_model_sort_convert_path:
* @tree_model_sort: The #GtkTreeModelSort.
* @child_path: A #GtkTreePath, relative to the child model.
*
* Converts the @child_path to a new path, relative to the sorted position. In other
* words, the value found in the @tree_model_sort ->child_model at the @child_path, is
* identical to that found in the @tree_model_sort and the return value.
*
* Return value: A new path, or NULL if @child_path does not exist in @tree_model_sort
* ->child_model.
**/
GtkTreePath *
gtk_tree_model_sort_convert_path (GtkTreeModelSort *tree_model_sort,
GtkTreePath *child_path)
{
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model_sort), NULL);
g_return_val_if_fail (child_path != NULL, NULL);
return gtk_tree_model_sort_convert_path_real (tree_model_sort, child_path, TRUE);
}
/**
* gtk_tree_model_sort_convert_iter:
* @tree_model_sort: The #GtkTreeModelSort
* @sort_iter: A pointer to a #GtkTreeIter
* @child_iter: A #GtkTreeIter, relative to the child model
*
* Converts the @child_iter to a new iter, relative to the sorted position. In other
* words, the value found in the @tree_model_sort ->child_model at the @child_iter, is
* identical to that found in @tree_model_sort at the @sort_iter. The @sort_iter will be
* set.
*/
void
gtk_tree_model_sort_convert_iter (GtkTreeModelSort *tree_model_sort,
GtkTreeIter *sort_iter,
GtkTreeIter *child_iter)
{
g_return_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model_sort));
g_return_if_fail (sort_iter != NULL);
g_return_if_fail (child_iter != NULL);
gtk_tree_model_sort_convert_iter_real (tree_model_sort,
sort_iter,
child_iter,
TRUE);
}
static void
gtk_tree_model_sort_finalize (GObject *object)
{
GtkTreeModelSort *tree_model_sort = (GtkTreeModelSort *) object;
if (tree_model_sort->root)
gtk_tree_model_sort_free_level (tree_model_sort->root);
if (tree_model_sort->child_model)
{
g_object_unref (G_OBJECT (tree_model_sort->child_model));
tree_model_sort->child_model = NULL;
}
if (tree_model_sort->sort_list)
{
_gtk_tree_data_list_header_free (tree_model_sort->sort_list);
tree_model_sort->sort_list = NULL;
}
}
static void
gtk_tree_model_sort_row_changed (GtkTreeModel *s_model,
GtkTreePath *s_path,
GtkTreeIter *s_iter,
gpointer data)
{
GtkTreeModelSort *tree_model_sort = GTK_TREE_MODEL_SORT (data);
GtkTreePath *path;
GtkTreeIter iter;
GtkTreeIter tmpiter;
SortElt *elt;
GArray *array;
gboolean free_s_path = FALSE;
gint i;
gint offset;
gint index;
SortElt tmp;
g_return_if_fail (s_path != NULL || s_iter != NULL);
if (s_path == NULL)
{
free_s_path = TRUE;
s_path = gtk_tree_model_get_path (s_model, s_iter);
}
path = gtk_tree_model_sort_convert_path_real (tree_model_sort, s_path, FALSE);
if (path == NULL)
{
if (free_s_path)
gtk_tree_path_free (s_path);
return;
}
gtk_tree_model_get_iter (GTK_TREE_MODEL (data), &iter, path);
elt = iter.user_data;
array = get_array (elt, tree_model_sort);
if (array->len < 2)
{
if (free_s_path)
gtk_tree_path_free (s_path);
gtk_tree_model_row_changed (GTK_TREE_MODEL (data), path, &iter);
gtk_tree_path_free (path);
return;
}
if (tree_model_sort->cache_child_iters)
sort_elt_get_iter (tree_model_sort, elt, &tmpiter);
offset = elt->offset;
for (i = 0; i < array->len; i++)
if (elt->offset == g_array_index (array, SortElt, i).offset)
{
index = i;
}
memcpy (&tmp, elt, sizeof (SortElt));
g_array_remove_index (array, index);
/* _kris_: don't know if this FIXME was originally at this position...
* FIXME: as an optimization for when the column other then the one we're
* sorting is changed, we can check the prev and next element to see if
* they're different.
*/
/* now we need to resort things */
if (tree_model_sort->cache_child_iters)
index = gtk_tree_model_sort_array_find_insert (tree_model_sort,
array,
&tmp.iter,
TRUE);
else
index = gtk_tree_model_sort_array_find_insert (tree_model_sort,
array,
&tmpiter,
TRUE);
g_array_insert_val (array, index, tmp);
gtk_tree_model_row_changed (GTK_TREE_MODEL (data), path, &iter);
/* FIXME: emit row_reordered here */
gtk_tree_path_free (path);
if (free_s_path)
gtk_tree_path_free (s_path);
}
/* Returns FALSE if the value was inserted, TRUE otherwise */
static gboolean
gtk_tree_model_sort_insert_value (GtkTreeModelSort *tree_model_sort,
GtkTreePath *s_path,
GtkTreeIter *s_iter)
{
GtkTreePath *tmp_path;
GArray *array = NULL;
gint index;
GtkTreeIter iter;
SortElt elt;
gint offset;
gint j;
SortElt *tmp_elt;
offset = gtk_tree_path_get_indices (s_path)[gtk_tree_path_get_depth (s_path) - 1];
if (tree_model_sort->cache_child_iters)
elt.iter = *s_iter;
elt.children = NULL;
elt.offset = offset;
elt.ref = 0;
tmp_path = gtk_tree_path_copy (s_path);
if (gtk_tree_path_up (tmp_path))
{
GtkTreePath *parent_path;
parent_path = gtk_tree_model_sort_convert_path_real (tree_model_sort,
tmp_path,
FALSE);
if (!parent_path)
{
gtk_tree_path_free (tmp_path);
return FALSE;
}
if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_model_sort), &iter,
parent_path))
{
gtk_tree_path_free (tmp_path);
return FALSE;
}
elt.parent = iter.user_data;
array = elt.parent->children;
gtk_tree_path_free (parent_path);
if (!array)
{
gtk_tree_path_free (tmp_path);
return FALSE;
}
}
else
{
if (!tree_model_sort->root)
tree_model_sort->root =
g_array_sized_new (FALSE, FALSE, sizeof (SortElt), 1);
array = tree_model_sort->root;
elt.parent = NULL;
}
gtk_tree_path_free (tmp_path);
if (tree_model_sort->cache_child_iters)
index = gtk_tree_model_sort_array_find_insert (tree_model_sort,
array,
&elt.iter,
FALSE);
else
{
GtkTreeIter tmpiter;
sort_elt_get_iter (tree_model_sort, &elt, &tmpiter);
index = gtk_tree_model_sort_array_find_insert (tree_model_sort,
array,
&tmpiter,
FALSE);
}
g_array_insert_vals (array, index, &elt, 1);
/* update all the larger offsets */
tmp_elt = (SortElt *)array->data;
for (j = 0; j < array->len; j++, tmp_elt++)
{
if ((tmp_elt->offset >= offset) && j != index)
tmp_elt->offset++;
}
return TRUE;
}
static void
gtk_tree_model_sort_row_inserted (GtkTreeModel *s_model,
GtkTreePath *s_path,
GtkTreeIter *s_iter,
gpointer data)
{
GtkTreeModelSort *tree_model_sort = GTK_TREE_MODEL_SORT (data);
GtkTreePath *path;
GtkTreeIter iter;
g_return_if_fail (s_path != NULL || s_iter != NULL);
if (s_path == NULL)
s_path = gtk_tree_model_get_path (s_model, s_iter);
if (!(tree_model_sort->flags & GTK_TREE_MODEL_ITERS_PERSIST))
{
gtk_tree_model_sort_free_level ((GArray *) tree_model_sort->root);
tree_model_sort->root = NULL;
}
else
{
GtkTreeIter real_s_iter;
if (s_iter == NULL)
gtk_tree_model_get_iter (s_model, &real_s_iter, s_path);
else
real_s_iter = (* s_iter);
if (!gtk_tree_model_sort_insert_value (tree_model_sort,
s_path, &real_s_iter))
return;
}
if (!tree_model_sort->root)
path = gtk_tree_model_sort_convert_path_real (tree_model_sort,
s_path, TRUE);
else
path = gtk_tree_model_sort_convert_path_real (tree_model_sort,
s_path, FALSE);
if (path == NULL)
return;
tree_model_sort->stamp++;
gtk_tree_model_get_iter (GTK_TREE_MODEL (data), &iter, path);
gtk_tree_model_row_inserted (GTK_TREE_MODEL (data), path, &iter);
gtk_tree_path_free (path);
}
static void
gtk_tree_model_sort_row_has_child_toggled (GtkTreeModel *s_model,
GtkTreePath *s_path,
GtkTreeIter *s_iter,
gpointer data)
{
GtkTreeModelSort *tree_model_sort = GTK_TREE_MODEL_SORT (data);
GtkTreePath *path;
GtkTreeIter iter;
gboolean free_s_path = FALSE;
g_return_if_fail (s_path != NULL || s_iter != NULL);
if (!(tree_model_sort->flags & GTK_TREE_MODEL_ITERS_PERSIST))
{
gtk_tree_model_sort_free_level ((GArray *)tree_model_sort->root);
tree_model_sort->root = NULL;
}
if (s_path == NULL)
{
s_path = gtk_tree_model_get_path (s_model, s_iter);
free_s_path = TRUE;
}
path = gtk_tree_model_sort_convert_path_real (tree_model_sort, s_path, FALSE); if (path == NULL)
return;
gtk_tree_model_get_iter (GTK_TREE_MODEL (data), &iter, path);
gtk_tree_model_row_has_child_toggled (GTK_TREE_MODEL (data), path, &iter);
gtk_tree_path_free (path);
if (free_s_path)
gtk_tree_path_free (s_path);
}
static void
gtk_tree_model_sort_row_deleted (GtkTreeModel *s_model,
GtkTreePath *s_path,
gpointer data)
{
GtkTreeModelSort *tree_model_sort = GTK_TREE_MODEL_SORT (data);
GtkTreePath *path;
g_return_if_fail (s_path != NULL);
path = gtk_tree_model_sort_convert_path (tree_model_sort, s_path);
g_return_if_fail (path != NULL);
if (!(tree_model_sort->flags & GTK_TREE_MODEL_ITERS_PERSIST))
{
gtk_tree_model_sort_free_level ((GArray *)tree_model_sort->root);
tree_model_sort->root = NULL;
}
else
{
GArray *array;
GtkTreeIter iter;
SortElt *elt;
gint offset;
gint i;
gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_model_sort), &iter, path);
elt = iter.user_data;
offset = elt->offset;
array = get_array (elt, tree_model_sort);
if (array->len == 1)
{
if (((SortElt *)array->data)->parent == NULL)
tree_model_sort->root = NULL;
else
(((SortElt *)array->data)->parent)->children = NULL;
gtk_tree_model_sort_free_level (array);
}
else
{
for (i = 0; i < array->len; i++)
if (elt->offset == g_array_index (array, SortElt, i).offset)
break;
g_array_remove_index (array, i);
/* update all offsets */
for (i = 0; i < array->len; i++)
{
elt = & (g_array_index (array, SortElt, i));
if (elt->offset > offset)
elt->offset--;
}
}
}
gtk_tree_model_row_deleted (GTK_TREE_MODEL (data), path);
tree_model_sort->stamp++;
gtk_tree_path_free (path);
}
static void
gtk_tree_model_sort_rows_reordered (GtkTreeModel *s_model,
GtkTreePath *s_path,
GtkTreeIter *s_iter,
gint *new_order,
gpointer data)
{
gint i = 0;
GtkTreeModelSort *tree_model_sort = GTK_TREE_MODEL_SORT (data);
GtkTreePath *path;
GtkTreeIter iter;
SortElt *elt = NULL;
GArray *array;
gint len;
gboolean listen_to_reorder = TRUE;
gint *my_new_order;
g_return_if_fail (s_path != NULL || s_iter != NULL);
g_return_if_fail (new_order != NULL);
if (!s_path)
s_path = gtk_tree_model_get_path (s_model, s_iter);
if (!gtk_tree_path_get_indices (s_path))
len = gtk_tree_model_iter_n_children (s_model, NULL);
else
len = gtk_tree_model_iter_n_children (s_model, s_iter);
if (len < 2)
return;
if (!gtk_tree_path_get_indices (s_path))
{
array = (GArray *)tree_model_sort->root;
if (!array)
{
gtk_tree_model_sort_build_level (tree_model_sort, NULL);
array = (GArray *)tree_model_sort->root;
if (tree_model_sort->sort_column_id != -1)
gtk_tree_model_sort_sort_helper (tree_model_sort,
array,
FALSE,
TRUE);
return;
}
if (!tree_model_sort->cache_child_iters
&& tree_model_sort->sort_column_id != -1)
{
if (array)
gtk_tree_model_sort_free_level (tree_model_sort->root);
tree_model_sort->root = NULL;
gtk_tree_model_sort_build_level (tree_model_sort, NULL);
gtk_tree_model_sort_sort_helper (tree_model_sort,
tree_model_sort->root,
FALSE,
FALSE);
array = tree_model_sort->root;
listen_to_reorder = FALSE;
}
else if (tree_model_sort->cache_child_iters
&& tree_model_sort->sort_column_id == -1)
{
if (array)
gtk_tree_model_sort_free_level (tree_model_sort->root);
tree_model_sort->root = NULL;
gtk_tree_model_sort_build_level (tree_model_sort, NULL);
array = tree_model_sort->root;
listen_to_reorder = FALSE;
}
}
else
{
path = gtk_tree_model_sort_convert_path_real (tree_model_sort,
s_path,
FALSE);
if (!path)
return;
if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (data), &iter, path))
/* no iter for me */
return;
elt = iter.user_data;
gtk_tree_path_free (path);
if (!s_iter)
gtk_tree_model_get_iter (s_model, s_iter, s_path);
if (!elt->children)
return;
array = elt->children;
if (!tree_model_sort->cache_child_iters
&& tree_model_sort->sort_column_id != -1)
{
if (array)
gtk_tree_model_sort_free_level (elt->children);
elt->children = NULL;
gtk_tree_model_sort_build_level (tree_model_sort, elt);
gtk_tree_model_sort_sort_helper (tree_model_sort,
elt->children,
FALSE,
FALSE);
array = elt->children;
listen_to_reorder = FALSE;
}
else if (tree_model_sort->cache_child_iters
&& tree_model_sort->sort_column_id == -1)
{
if (array)
gtk_tree_model_sort_free_level (elt->children);
elt->children = NULL;
gtk_tree_model_sort_build_level (tree_model_sort, elt);
array = elt->children;
listen_to_reorder = FALSE;
}
}
if (listen_to_reorder
&& tree_model_sort->default_sort_func != (GtkTreeIterCompareFunc) 0x1)
{
if (len != array->len)
/* length mismatch, pretty bad, shouldn't happen */
return;
for (i = 0; i < array->len; i++)
g_array_index (array, SortElt, i).offset = new_order[i];
}
my_new_order = g_new (gint, array->len);
for (i = 0; i < array->len; i++)
my_new_order[i] = i;
tree_model_sort->stamp++;
path = gtk_tree_model_sort_convert_path_real (tree_model_sort,
s_path,
FALSE);
if (gtk_tree_path_get_depth (path))
{
gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_model_sort), &iter, path);
gtk_tree_model_rows_reordered (GTK_TREE_MODEL (tree_model_sort), path,
&iter, my_new_order);
}
else
gtk_tree_model_rows_reordered (GTK_TREE_MODEL (tree_model_sort), path,
NULL, my_new_order);
g_free (my_new_order);
gtk_tree_path_free (path);
}
static gint
gtk_tree_model_sort_get_n_columns (GtkTreeModel *tree_model)
{
GtkTreeModelSort *tree_model_sort = (GtkTreeModelSort *) tree_model;
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model), 0);
if (tree_model_sort->child_model == 0)
return 0;
return gtk_tree_model_get_n_columns (GTK_TREE_MODEL_SORT (tree_model)->child_model);
}
static GType
gtk_tree_model_sort_get_column_type (GtkTreeModel *tree_model,
gint index)
{
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model), G_TYPE_INVALID);
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->child_model != NULL, G_TYPE_INVALID);
return gtk_tree_model_get_column_type (GTK_TREE_MODEL_SORT (tree_model)->child_model, index);
}
static gboolean
gtk_tree_model_sort_get_iter_helper (GtkTreeModelSort *tree_model_sort,
GArray *array,
GtkTreeIter *iter,
gint depth,
GtkTreePath *path)
{
SortElt *elt = NULL;
GtkTreeIter child_iter;
if (array == NULL)
return FALSE;
if (gtk_tree_path_get_indices (path)[depth] >= array->len)
return FALSE;
elt = &g_array_index (array, SortElt, gtk_tree_path_get_indices (path)[depth]);
if (!elt)
return FALSE;
if (depth == gtk_tree_path_get_depth (path) - 1)
{
iter->stamp = tree_model_sort->stamp;
iter->user_data = elt;
return TRUE;
}
if (elt->children != NULL)
return gtk_tree_model_sort_get_iter_helper (tree_model_sort,
elt->children,
iter,
depth + 1,
path);
sort_elt_get_iter (tree_model_sort, elt, &child_iter);
if (gtk_tree_model_iter_has_child (tree_model_sort->child_model, &child_iter))
gtk_tree_model_sort_build_level_sort (tree_model_sort, elt);
return gtk_tree_model_sort_get_iter_helper (tree_model_sort,
elt->children,
iter,
depth + 1,
path);
}
static gboolean
gtk_tree_model_sort_get_iter (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreePath *path)
{
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model), FALSE);
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->child_model != NULL, FALSE);
if (GTK_TREE_MODEL_SORT (tree_model)->root == NULL)
gtk_tree_model_sort_build_level (GTK_TREE_MODEL_SORT (tree_model), NULL);
return gtk_tree_model_sort_get_iter_helper (GTK_TREE_MODEL_SORT (tree_model),
GTK_TREE_MODEL_SORT (tree_model)->root,
iter, 0, path);
}
static GtkTreePath *
gtk_tree_model_sort_get_path (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model), NULL);
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->child_model != NULL, NULL);
if (iter->stamp == GTK_TREE_MODEL_SORT (tree_model)->stamp)
{
SortElt *elt;
GtkTreePath *path;
elt = iter->user_data;
path = gtk_tree_model_sort_generate_path_index
(elt, GTK_TREE_MODEL_SORT (tree_model));
return path;
}
return gtk_tree_model_get_path (GTK_TREE_MODEL_SORT (tree_model)->child_model, iter);
}
static void
gtk_tree_model_sort_get_value (GtkTreeModel *tree_model,
GtkTreeIter *iter,
gint column,
GValue *value)
{
SortElt *elt;
GtkTreeIter child_iter;
g_return_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model));
g_return_if_fail (GTK_TREE_MODEL_SORT (tree_model)->child_model != NULL);
g_return_if_fail (GTK_TREE_MODEL_SORT (tree_model)->stamp == iter->stamp);
elt = iter->user_data;
sort_elt_get_iter (GTK_TREE_MODEL_SORT (tree_model), elt, &child_iter);
gtk_tree_model_get_value (GTK_TREE_MODEL_SORT (tree_model)->child_model,
&child_iter, column, value);
}
static gboolean
gtk_tree_model_sort_iter_next (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
GArray *array;
SortElt *elt;
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model), FALSE);
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->child_model != NULL, FALSE);
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->stamp == iter->stamp, FALSE);
elt = iter->user_data;
array = get_array (elt, GTK_TREE_MODEL_SORT (tree_model));
if (!array)
{
iter->stamp = 0;
return FALSE;
}
if ((elt - ((SortElt *)array->data)) >= array->len - 1)
{
iter->stamp = 0;
return FALSE;
}
iter->user_data = elt + 1;
return TRUE;
}
static gboolean
gtk_tree_model_sort_iter_children (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent)
{
GArray *array;
SortElt *elt;
GtkTreeIter child_iter;
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model), FALSE);
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->child_model != NULL, FALSE);
if (parent)
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->stamp == parent->stamp, FALSE);
if (GTK_TREE_MODEL_SORT (tree_model)->root == NULL)
gtk_tree_model_sort_build_level (GTK_TREE_MODEL_SORT (tree_model), NULL);
if (parent)
elt = parent->user_data;
else
{
if (!GTK_TREE_MODEL_SORT (tree_model)->root)
return FALSE;
else
{
array = GTK_TREE_MODEL_SORT (tree_model)->root;
iter->stamp = GTK_TREE_MODEL_SORT (tree_model)->stamp;
iter->user_data = &g_array_index (array, SortElt, 0);
return TRUE;
}
}
if (!elt)
return FALSE;
sort_elt_get_iter (GTK_TREE_MODEL_SORT (tree_model), elt, &child_iter);
if (!elt->children &&
gtk_tree_model_iter_has_child
(GTK_TREE_MODEL_SORT (tree_model)->child_model, &child_iter))
gtk_tree_model_sort_build_level_sort (GTK_TREE_MODEL_SORT (tree_model),
elt);
if (!elt->children)
return FALSE;
array = elt->children;
iter->stamp = GTK_TREE_MODEL_SORT (tree_model)->stamp;
iter->user_data = &g_array_index (array, SortElt, 0);
return TRUE;
}
static gboolean
gtk_tree_model_sort_iter_has_child (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
SortElt *elt;
GtkTreeIter child_iter;
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model), FALSE);
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->child_model != NULL, FALSE);
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->stamp == iter->stamp, FALSE);
elt = iter->user_data;
if (elt->children)
return TRUE;
sort_elt_get_iter (GTK_TREE_MODEL_SORT (tree_model), elt, &child_iter);
return gtk_tree_model_iter_has_child
(GTK_TREE_MODEL_SORT (tree_model)->child_model, &child_iter);
}
static gint
gtk_tree_model_sort_iter_n_children (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
SortElt *elt;
GtkTreeIter child_iter;
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model), 0);
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->child_model != NULL, 0);
if (iter)
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->stamp == iter->stamp, 0);
if (GTK_TREE_MODEL_SORT (tree_model)->root == NULL)
gtk_tree_model_sort_build_level (GTK_TREE_MODEL_SORT (tree_model), NULL);
if (iter)
elt = iter->user_data;
else
{
if (!GTK_TREE_MODEL_SORT (tree_model)->root)
return 0;
else
return ((GArray *)GTK_TREE_MODEL_SORT (tree_model)->root)->len;
}
g_return_val_if_fail (elt != NULL, 0);
if (elt->children)
return elt->children->len;
sort_elt_get_iter (GTK_TREE_MODEL_SORT (tree_model), elt, &child_iter);
return gtk_tree_model_iter_n_children
(GTK_TREE_MODEL_SORT (tree_model)->child_model, &child_iter);
}
static gboolean
gtk_tree_model_sort_iter_nth_child (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent,
gint n)
{
SortElt *elt;
GArray *array;
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model), FALSE);
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->child_model != NULL, FALSE);
if (parent)
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->stamp == parent->stamp, FALSE);
if (GTK_TREE_MODEL_SORT (tree_model)->root == NULL)
gtk_tree_model_sort_build_level (GTK_TREE_MODEL_SORT (tree_model), NULL);
if (parent)
elt = parent->user_data;
else
{
if (!GTK_TREE_MODEL_SORT (tree_model)->root)
return FALSE;
else
{
elt = NULL;
array = GTK_TREE_MODEL_SORT (tree_model)->root;
elt = &g_array_index (array, SortElt, n);
if (!elt)
return FALSE;
}
}
if (!elt->children)
{
GtkTreeIter child_iter;
sort_elt_get_iter (GTK_TREE_MODEL_SORT (tree_model), elt, &child_iter);
if (gtk_tree_model_iter_has_child
(GTK_TREE_MODEL_SORT (tree_model)->child_model, &child_iter))
gtk_tree_model_sort_build_level_sort
(GTK_TREE_MODEL_SORT (tree_model), elt);
else
return FALSE;
}
if (!elt->children)
return FALSE;
if (n >= elt->children->len)
return FALSE;
array = elt->children;
iter->stamp = GTK_TREE_MODEL_SORT (tree_model)->stamp;
iter->user_data = &g_array_index (array, SortElt, n);
return TRUE;
}
static gboolean
gtk_tree_model_sort_iter_parent (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *child)
{
SortElt *elt;
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model), FALSE);
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->child_model != NULL, FALSE);
g_return_val_if_fail (GTK_TREE_MODEL_SORT (tree_model)->stamp == child->stamp, FALSE);
elt = child->user_data;
if (elt->parent)
{
iter->stamp = GTK_TREE_MODEL_SORT (tree_model)->stamp;
iter->user_data = elt->parent;
return TRUE;
}
return FALSE;
}
static void
gtk_tree_model_sort_ref_node (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
SortElt *elt;
g_return_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model));
g_return_if_fail (GTK_TREE_MODEL_SORT (tree_model)->child_model != NULL);
g_return_if_fail (GTK_TREE_MODEL_SORT (tree_model)->stamp == iter->stamp);
elt = iter->user_data;
if (elt->parent)
elt->parent->ref++;
}
static void
gtk_tree_model_sort_unref_node (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
SortElt *elt;
g_return_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model));
g_return_if_fail (GTK_TREE_MODEL_SORT (tree_model)->child_model != NULL);
g_return_if_fail (GTK_TREE_MODEL_SORT (tree_model)->stamp == iter->stamp);
elt = iter->user_data;
if (elt->parent)
{
elt->parent->ref--;
if (elt->parent->ref == 0)
{
SortElt *parent = elt->parent;
gtk_tree_model_sort_free_level (parent->children);
parent->children = NULL;
}
}
}
/* sortable interface */
static gboolean
gtk_tree_model_sort_get_sort_column_id (GtkTreeSortable *sortable,
gint *sort_column_id,
GtkSortType *order)
{
GtkTreeModelSort *tree_model_sort = (GtkTreeModelSort *) sortable;
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (sortable), FALSE);
if (tree_model_sort->sort_column_id == -1)
return FALSE;
if (sort_column_id)
*sort_column_id = tree_model_sort->sort_column_id;
if (order)
*order = tree_model_sort->order;
return TRUE;
}
static void
gtk_tree_model_sort_set_sort_column_id (GtkTreeSortable *sortable,
gint sort_column_id,
GtkSortType order)
{
GtkTreeModelSort *tree_model_sort = (GtkTreeModelSort *) sortable;
GList *list;
g_return_if_fail (GTK_IS_TREE_MODEL_SORT (sortable));
if (sort_column_id != -1)
{
GtkTreeDataSortHeader *header = NULL;
header = _gtk_tree_data_list_get_header (tree_model_sort->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 (tree_model_sort->default_sort_func != NULL);
}
for (list = tree_model_sort->sort_list; list; list = list->next)
{
GtkTreeDataSortHeader *header = (GtkTreeDataSortHeader*) list->data;
if (header->sort_column_id == sort_column_id)
break;
}
g_return_if_fail (list != NULL);
if ((tree_model_sort->sort_column_id == sort_column_id) &&
(tree_model_sort->order == order))
return;
tree_model_sort->sort_column_id = sort_column_id;
tree_model_sort->order = order;
if (tree_model_sort->sort_column_id >= 0)
gtk_tree_model_sort_sort (tree_model_sort);
gtk_tree_sortable_sort_column_changed (sortable);
}
static void
gtk_tree_model_sort_set_sort_func (GtkTreeSortable *sortable,
gint sort_column_id,
GtkTreeIterCompareFunc func,
gpointer data,
GtkDestroyNotify destroy)
{
GtkTreeModelSort *tree_model_sort = (GtkTreeModelSort *) sortable;
GtkTreeDataSortHeader *header = NULL;
GList *list;
g_return_if_fail (GTK_IS_TREE_MODEL_SORT (sortable));
g_return_if_fail (func != NULL);
for (list = tree_model_sort->sort_list; list; list = list->next)
{
header = (GtkTreeDataSortHeader*) list->data;
if (header->sort_column_id == sort_column_id)
break;
}
if (header == NULL)
{
header = g_new0 (GtkTreeDataSortHeader, 1);
header->sort_column_id = sort_column_id;
tree_model_sort->sort_list = g_list_append (tree_model_sort->sort_list,
header);
}
if (header->destroy)
(* header->destroy) (header->data);
header->func = func;
header->data = data;
header->destroy = destroy;
}
static void
gtk_tree_model_sort_set_default_sort_func (GtkTreeSortable *sortable,
GtkTreeIterCompareFunc func,
gpointer data,
GtkDestroyNotify destroy)
{
GtkTreeModelSort *tree_model_sort = (GtkTreeModelSort *)sortable;
g_return_if_fail (GTK_IS_TREE_MODEL_SORT (sortable));
if (tree_model_sort->default_sort_destroy)
(* tree_model_sort->default_sort_destroy)
(tree_model_sort->default_sort_data);
tree_model_sort->default_sort_func = func;
tree_model_sort->default_sort_data = data;
tree_model_sort->default_sort_destroy = destroy;
}
static gboolean
gtk_tree_model_sort_has_default_sort_func (GtkTreeSortable *sortable)
{
GtkTreeModelSort *tree_model_sort = (GtkTreeModelSort *)sortable;
g_return_val_if_fail (GTK_IS_TREE_MODEL_SORT (sortable), FALSE);
return (tree_model_sort->default_sort_func != NULL);
}
/* sorting core */
static gint
gtk_tree_model_sort_compare_func (gconstpointer a,
gconstpointer b,
gpointer user_data)
{
gint retval;
SortElt *sa = ((SortTuple *)a)->elt;
SortElt *sb = ((SortTuple *)b)->elt;
GtkTreeIter iter_a;
GtkTreeIter iter_b;
SortData *data = (SortData *)user_data;
GtkTreeModelSort *tree_model_sort = data->tree_model_sort;
GtkTreeIterCompareFunc func;
gpointer f_data;
if (tree_model_sort->sort_column_id != -1)
{
GtkTreeDataSortHeader *header = NULL;
header =
_gtk_tree_data_list_get_header (tree_model_sort->sort_list,
tree_model_sort->sort_column_id);
g_return_val_if_fail (header != NULL, 0);
g_return_val_if_fail (header->func != NULL, 0);
func = header->func;
f_data = header->data;
}
else
{
/* absolutely SHOULD NOT happen: */
g_return_val_if_fail (tree_model_sort->default_sort_func
!= (GtkTreeIterCompareFunc)0x1, 0);
g_return_val_if_fail (tree_model_sort->default_sort_func != NULL, 0);
func = tree_model_sort->default_sort_func;
f_data = tree_model_sort->default_sort_data;
}
/* sortcut, if we've the same offsets here, they should be equal */
if (sa->offset == sb->offset)
return 0;
sort_elt_get_iter (tree_model_sort, sa, &iter_a);
sort_elt_get_iter (tree_model_sort, sb, &iter_b);
retval = (* func) (GTK_TREE_MODEL (tree_model_sort->child_model),
&iter_a, &iter_b, f_data);
if (tree_model_sort->order == GTK_SORT_DESCENDING)
{
if (retval > 0)
retval = -1;
else if (retval < 0)
retval = 1;
}
return retval;
}
static gint
gtk_tree_model_sort_offset_compare_func (gconstpointer a,
gconstpointer b,
gpointer user_data)
{
gint retval;
SortElt *sa = ((SortTuple *)a)->elt;
SortElt *sb = ((SortTuple *)b)->elt;
SortData *data = (SortData *)user_data;
if (sa->offset < sb->offset)
retval = -1;
else if (sa->offset > sb->offset)
retval = 1;
else
retval = 0;
if (data->tree_model_sort->order == GTK_SORT_DESCENDING)
{
if (retval > 0)
retval = -1;
else if (retval < 0)
retval = 1;
}
return retval;
}
static void
gtk_tree_model_sort_sort_helper (GtkTreeModelSort *tree_model_sort,
GArray *parent,
gboolean recurse,
gboolean emit_reordered)
{
gint i;
gint *new_order;
GArray *sort_array;
GArray *new_array;
GtkTreeIter iter;
GtkTreePath *path;
SortData *data = NULL;
g_return_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model_sort));
g_return_if_fail (parent != NULL);
if (parent->len < 1 && !((SortElt *)parent->data)->children)
return;
data = g_new (SortData, 1);
if (((SortElt *)parent->data)->parent)
{
data->parent_a = gtk_tree_model_sort_generate_path
(((SortElt *)parent->data)->parent);
data->parent_b = gtk_tree_path_copy (data->parent_a);
}
else
{
data->parent_a = gtk_tree_path_new ();
data->parent_b = gtk_tree_path_new ();
}
data->tree_model_sort = tree_model_sort;
sort_array = g_array_sized_new (FALSE, FALSE, sizeof (SortTuple),
parent->len);
for (i = 0; i < parent->len; i++)
{
SortTuple tuple;
tuple.elt = &g_array_index (parent, SortElt, i);
tuple.children = tuple.elt->children;
tuple.offset = tuple.elt->offset;
g_array_append_val (sort_array, tuple);
}
if (tree_model_sort->sort_column_id == -1 &&
tree_model_sort->default_sort_func == (GtkTreeIterCompareFunc)0x1)
g_array_sort_with_data (sort_array,
gtk_tree_model_sort_offset_compare_func,
data);
else
g_array_sort_with_data (sort_array, gtk_tree_model_sort_compare_func,
data);
gtk_tree_path_free (data->parent_a);
gtk_tree_path_free (data->parent_b);
g_free (data);
/* let the world know about our absolutely great new order */
new_array = g_array_sized_new (FALSE, FALSE, sizeof (SortElt), parent->len);
g_array_set_size (new_array, parent->len);
new_order = g_new (gint, parent->len);
for (i = 0; i < parent->len; i++)
{
SortElt *elt1;
SortElt *elt2;
gint j;
GArray *c;
elt1 = &g_array_index (parent, SortElt, i);
for (j = 0; j < sort_array->len; j++)
if (elt1->offset == g_array_index (sort_array, SortTuple, j).offset)
break;
if (j >= parent->len)
/* isn't supposed to happen */
break;
new_order[i] = j;
/* copy (hackety hack, or not? ;-) */
memcpy (&g_array_index (new_array, SortElt, j), elt1, sizeof (SortElt));
elt2 = &g_array_index (new_array, SortElt, j);
/* point children to correct parent */
if (elt2->children)
{
gint k;
c = elt2->children;
for (k = 0; k < c->len; k++)
g_array_index (c, SortElt, k).parent = elt2;
}
}
{
/* a bit hackish ? */
SortElt *p = g_array_index (new_array, SortElt, 0).parent;
if (!p && parent == tree_model_sort->root)
{
g_array_free (tree_model_sort->root, TRUE);
tree_model_sort->root = parent = new_array;
}
else if (p && parent == p->children)
{
g_array_free (p->children, TRUE);
p->children = parent = new_array;
}
}
g_array_free (sort_array, TRUE);
if (emit_reordered)
{
tree_model_sort->stamp++;
iter.stamp = tree_model_sort->stamp;
iter.user_data = ((SortElt *)parent->data)->parent;
if (iter.user_data)
{
path = gtk_tree_model_sort_generate_path (iter.user_data);
gtk_tree_model_rows_reordered (GTK_TREE_MODEL (tree_model_sort), path,
&iter, new_order);
}
else
{
/* toplevel list */
path = gtk_tree_path_new ();
gtk_tree_model_rows_reordered (GTK_TREE_MODEL (tree_model_sort),
path, NULL, new_order);
}
gtk_tree_path_free (path);
}
g_free (new_order);
/* recurse, check if possible */
if (recurse)
{
for (i = 0; i < parent->len; i++)
{
SortElt *elt = (SortElt *)&g_array_index (parent, SortElt, i);
if (elt->children)
{
gtk_tree_model_sort_sort_helper (tree_model_sort,
elt->children,
TRUE, emit_reordered);
}
}
}
}
static void
gtk_tree_model_sort_sort (GtkTreeModelSort *tree_model_sort)
{
g_return_if_fail (GTK_IS_TREE_MODEL_SORT (tree_model_sort));
if (!tree_model_sort->root)
return;
if (tree_model_sort->sort_column_id != -1)
{
GtkTreeDataSortHeader *header = NULL;
header = _gtk_tree_data_list_get_header
(tree_model_sort->sort_list, tree_model_sort->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 (tree_model_sort->default_sort_func != NULL);
}
gtk_tree_model_sort_sort_helper (tree_model_sort, tree_model_sort->root,
TRUE, TRUE);
}
static gint
gtk_tree_model_sort_array_find_insert (GtkTreeModelSort *tree_model_sort,
GArray *array,
GtkTreeIter *iter,
gboolean skip_sort_elt)
{
gint middle;
gint cmp;
SortElt *tmp_elt;
GtkTreeIter tmp_iter;
GtkTreeIterCompareFunc func;
gpointer data;
if (tree_model_sort->sort_column_id < 0)
return 0;
/* ugly */
if (tree_model_sort->sort_column_id == -1 &&
tree_model_sort->default_sort_func == (GtkTreeIterCompareFunc)0x1)
return array->len;
if (tree_model_sort->sort_column_id != -1)
{
GtkTreeDataSortHeader *header;
header = _gtk_tree_data_list_get_header
(tree_model_sort->sort_list, tree_model_sort->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
{
/* absolutely SHOULD NOT HAPPEN */
g_return_val_if_fail (tree_model_sort->default_sort_func
!= (GtkTreeIterCompareFunc)0x1, 0);
g_return_val_if_fail (tree_model_sort->default_sort_func != NULL, 0);
func = tree_model_sort->default_sort_func;
data = tree_model_sort->default_sort_data;
}
for (middle = 0; middle < array->len; middle++)
{
tmp_elt = &(g_array_index (array, SortElt, middle));
if (!skip_sort_elt && (SortElt *) iter == tmp_elt)
continue;
sort_elt_get_iter (tree_model_sort, tmp_elt, &tmp_iter);
if (tree_model_sort->order == GTK_SORT_ASCENDING)
cmp = (* func) (GTK_TREE_MODEL (tree_model_sort->child_model),
&tmp_iter, iter, data);
else
cmp = (* func) (GTK_TREE_MODEL (tree_model_sort->child_model),
iter, &tmp_iter, data);
if (cmp > 0)
break;
}
return middle;
}
/* sort_elt helpers */
static void
sort_elt_get_iter (GtkTreeModelSort *tree_model_sort,
SortElt *elt,
GtkTreeIter *child_iter)
{
if (tree_model_sort->cache_child_iters)
*child_iter = elt->iter;
else
{
GtkTreePath *path = gtk_tree_model_sort_generate_path (elt);
gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_model_sort->child_model),
child_iter, path);
gtk_tree_path_free (path);
}
}
/* another helper */
/* index based */
static GtkTreePath *
gtk_tree_model_sort_generate_path_index (SortElt *item,
GtkTreeModelSort *tree_model_sort)
{
gchar *str = NULL;
GList *i;
GList *offsets = NULL;
SortElt *walker = item;
GtkTreePath *path;
g_return_val_if_fail (item != NULL, NULL);
while (walker)
{
gint j;
GArray *array = get_array (walker, tree_model_sort);
for (j = 0; j < array->len; j++)
if (walker == &g_array_index (array, SortElt, j))
break;
if (j >= array->len)
{
g_assert_not_reached ();
return NULL;
}
offsets = g_list_prepend (offsets,
g_strdup_printf ("%d", j));
walker = walker->parent;
}
g_return_val_if_fail (g_list_length (offsets) > 0, NULL);
for (i = offsets; i; i = i->next)
{
gchar *copy = str;
if (str)
str = g_strconcat (copy, ":", i->data, NULL);
else
str = g_strdup (i->data);
if (copy)
g_free (copy);
g_free (i->data);
}
g_list_free (offsets);
path = gtk_tree_path_new_from_string (str);
g_free (str);
return path;
}
/* offset based */
static GtkTreePath *
gtk_tree_model_sort_generate_path (SortElt *item)
{
gchar *str = NULL;
GList *i;
GList *offsets = NULL;
SortElt *walker = item;
GtkTreePath *path;
g_return_val_if_fail (item != NULL, NULL);
while (walker)
{
offsets = g_list_prepend (offsets,
g_strdup_printf ("%d", walker->offset));
walker = walker->parent;
}
g_return_val_if_fail (g_list_length (offsets) > 0, NULL);
for (i = offsets; i; i = i->next)
{
gchar *copy = str;
if (str)
str = g_strconcat (copy, ":", i->data, NULL);
else
str = g_strdup (i->data);
if (copy)
g_free (copy);
g_free (i->data);
}
g_list_free (offsets);
path = gtk_tree_path_new_from_string (str);
g_free (str);
return path;
}
/* model cache/child model conversion and cache management */
static GtkTreePath *
gtk_tree_model_sort_convert_path_real (GtkTreeModelSort *tree_model_sort,
GtkTreePath *child_path,
gboolean build_children)
{
GtkTreePath *retval;
GArray *array;
gint *indices;
gint i = 0;
if (tree_model_sort->root == NULL)
{
if (build_children)
gtk_tree_model_sort_build_level (tree_model_sort, NULL);
else
return FALSE;
}
retval = gtk_tree_path_new ();
array = (GArray *) tree_model_sort->root;
indices = gtk_tree_path_get_indices (child_path);
if (!indices && !gtk_tree_path_get_depth (child_path))
/* just a new path */
return retval;
do
{
SortElt *elt;
gboolean found = FALSE;
gint j;
if ((array->len < indices[i]) || (array == NULL))
{
gtk_tree_path_free (retval);
return NULL;
}
elt = (SortElt *) array->data;
for (j = 0; j < array->len; j++, elt++)
if (elt->offset == indices[i])
{
found = TRUE;
break;
}
if (!found)
{
gtk_tree_path_free (retval);
return NULL;
}
gtk_tree_path_append_index (retval, j);
i++;
if (i == gtk_tree_path_get_depth (child_path))
break;
if (elt->children == NULL)
{
if (build_children)
gtk_tree_model_sort_build_level_sort (tree_model_sort,
elt);
else
{
gtk_tree_path_free (retval);
return NULL;
}
}
if (elt->children)
array = elt->children;
else
{
/* shouldn't happen... */
gtk_tree_path_free (retval);
return NULL;
}
}
while (TRUE);
return retval;
}
static void
gtk_tree_model_sort_convert_iter_real (GtkTreeModelSort *tree_model_sort,
GtkTreeIter *sort_iter,
GtkTreeIter *child_iter,
gboolean build_children)
{
GtkTreePath *sort_path;
GtkTreePath *child_path;
child_path = gtk_tree_model_get_path (tree_model_sort->child_model,
child_iter);
sort_path = gtk_tree_model_sort_convert_path_real (tree_model_sort,
child_path,
build_children);
gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_model_sort),
sort_iter, sort_path);
gtk_tree_path_free (sort_path);
gtk_tree_path_free (child_path);
}
static void
gtk_tree_model_sort_build_level_sort (GtkTreeModelSort *tree_model_sort,
SortElt *place)
{
gtk_tree_model_sort_build_level (tree_model_sort, place);
if (place->children
&& tree_model_sort->default_sort_func != (GtkTreeIterCompareFunc) 0x1)
{
gtk_tree_model_sort_sort_helper (tree_model_sort,
place->children,
FALSE, FALSE);
}
}
static void
gtk_tree_model_sort_build_level (GtkTreeModelSort *tree_model_sort,
SortElt *place)
{
gint n, i = 0;
GArray *children;
GtkTreeIter *parent_iter = NULL;
GtkTreeIter iter;
SortElt elt;
if (place && place->children)
return;
if (place)
{
parent_iter = g_new (GtkTreeIter, 1);
sort_elt_get_iter (tree_model_sort, place, parent_iter);
}
n = gtk_tree_model_iter_n_children (tree_model_sort->child_model,
parent_iter);
if (n == 0)
{
if (parent_iter)
gtk_tree_iter_free (parent_iter);
return;
}
children = g_array_sized_new (FALSE, FALSE, sizeof (SortElt), n);
if (place)
place->children = children;
else
tree_model_sort->root = children;
gtk_tree_model_iter_children (tree_model_sort->child_model,
&iter,
parent_iter);
do
{
if (tree_model_sort->cache_child_iters)
elt.iter = iter;
elt.parent = place;
elt.children = NULL;
elt.offset = i;
elt.ref = 0;
g_array_append_vals (children, &elt, 1);
i++;
}
while (gtk_tree_model_iter_next (tree_model_sort->child_model, &iter));
if (parent_iter)
gtk_tree_iter_free (parent_iter);
}
static void
gtk_tree_model_sort_free_level (GArray *array)
{
gint i;
if (array == NULL)
return;
for (i = 0; i < array->len; i++)
{
SortElt *elt;
elt = &g_array_index (array, SortElt, i);
if (elt->children)
gtk_tree_model_sort_free_level (elt->children);
}
g_array_free (array, TRUE);
}
/* USEFUL DEBUGGING CODE */
#if 0
static void
_dump_tree (GtkTreeModelSort *tree_model_sort, const char *tag)
{
gint i;
GArray *a;
g_return_if_fail (tree_model_sort != NULL);
g_print ("-----------%s-----------------\n", tag);
a = (GArray *)tree_model_sort->root;
for (i = 0; i < a->len; i++)
{
GValue value = {0,};
GtkTreeIter iter;
sort_elt_get_iter (tree_model_sort, &g_array_index (a, SortElt, i),
&iter);
gtk_tree_model_get_value (tree_model_sort->child_model,
&iter, 0, &value);
g_print ("I/O=%d/%d --- %s\n", i, g_array_index (a, SortElt, i).offset,
g_value_get_string (&value));
g_value_unset (&value);
}
g_print ("-------------------------\n");
}
#endif
/* DEAD CODE */
#if 0
/* FIXME: we can, as we are an array, do binary search to find the correct
* location to insert the element. However, I'd rather get it working. The
* below is quite wrong, but a step in the right direction.
*/
low = 0;
high = array->len;
middle = (low + high)/2;
/* Insert the value into the array */
while (low != high)
{
gint cmp;
tmp_elt = &(g_array_index (array, SortElt, middle));
gtk_tree_model_get_value (sort->child_model,
(GtkTreeIter *) tmp_elt,
sort->sort_column_id,
&tmp_value);
cmp = ((func) (&tmp_value, &s_value));
g_value_unset (&tmp_value);
if (cmp < 0)
high = middle;
else if (cmp > 0)
low = middle;
else if (cmp == 0)
break;
middle = (low + high)/2;
}
#endif
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