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/*
This file is part of GNUnet
(C) 2006 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your
option) any later version.
GNUnet 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file src/common/iterators.c
* @brief This file contains GTK helper functions related to iterations
* @author Igor Wronsky
* @author Christian Grothoff
*/
#include "platform.h"
#include "gnunetgtk_common.h"
#include <GNUnet/gnunet_util_crypto.h>
#include <glib.h>
/**
* Identical to "gtk_tree_selection_selected_foreach",
* except that modifications of the underlying model
* during the iteration are tolerated.
*/
void ggc_tree_selection_selected_foreach(GtkTreeSelection *selection,
GtkTreeSelectionForeachFunc func,
gpointer data) {
unsigned int i;
unsigned int size;
GList * selected;
GtkTreeRowReference ** refs;
GtkTreeModel * model;
GtkTreePath * path;
GtkTreeIter iter;
selected = gtk_tree_selection_get_selected_rows(selection,
&model);
i = g_list_length(selected);
size = 0;
refs = NULL;
GROW(refs,
size,
i);
for (i=0;i<size;i++)
refs[i] = gtk_tree_row_reference_new(model,
g_list_nth_data(selected, i));
g_list_foreach(selected,
(GFunc) >k_tree_path_free,
NULL);
g_list_free(selected);
for (i=0;i<size;i++) {
path = gtk_tree_row_reference_get_path(refs[i]);
gtk_tree_row_reference_free(refs[i]);
if (TRUE == gtk_tree_model_get_iter(model,
&iter,
path))
func(model,
path,
&iter,
data);
gtk_tree_path_free(path);
}
GROW(refs,
size,
0);
}
typedef struct {
GtkTreeRowReference ** refs;
unsigned int pos;
unsigned int size;
} CollectData;
static gboolean
collectAllRows(GtkTreeModel * model,
GtkTreePath * path,
GtkTreeIter * iter,
gpointer cls) {
CollectData * cd = cls;
if (cd->size == cd->pos)
GROW(cd->refs,
cd->size,
cd->size * 2 + 4);
cd->refs[cd->pos++] = gtk_tree_row_reference_new(model,
path);
return FALSE;
}
/**
* Identical to "gtk_tree_model_foreach",
* except that modifications of the underlying model
* during the iteration are tolerated.
*/
void ggc_tree_model_foreach(GtkTreeModel * model,
GtkTreeSelectionForeachFunc func,
gpointer data) {
unsigned int i;
GtkTreePath * path;
GtkTreeIter iter;
CollectData cd;
memset(&cd,
0,
sizeof(CollectData));
gtk_tree_model_foreach(model,
&collectAllRows,
&cd);
for (i=0;i<cd.pos;i++) {
path = gtk_tree_row_reference_get_path(cd.refs[i]);
gtk_tree_row_reference_free(cd.refs[i]);
if (TRUE == gtk_tree_model_get_iter(model,
&iter,
path))
func(model,
path,
&iter,
data);
gtk_tree_path_free(path);
}
GROW(cd.refs,
cd.size,
0);
}
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