mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-12-30 15:31:34 +00:00
386b63b85d
In 99.9% of all cases, these are just NULL, NULL. So just do away with these arguments, people can use the setters for the rare cases where they want the scrolled window to use a different adjustment.
530 lines
13 KiB
C
530 lines
13 KiB
C
/* testtreeview.c
|
|
* Copyright (C) 2011 Red Hat, Inc
|
|
* Author: Benjamin Otte <otte@gnome.org>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <gtk/gtk.h>
|
|
|
|
#define MIN_ROWS 50
|
|
#define MAX_ROWS 150
|
|
|
|
typedef void (* DoStuffFunc) (GtkTreeView *treeview);
|
|
|
|
static guint
|
|
count_children (GtkTreeModel *model,
|
|
GtkTreeIter *parent)
|
|
{
|
|
GtkTreeIter iter;
|
|
guint count = 0;
|
|
gboolean valid;
|
|
|
|
for (valid = gtk_tree_model_iter_children (model, &iter, parent);
|
|
valid;
|
|
valid = gtk_tree_model_iter_next (model, &iter))
|
|
{
|
|
count += count_children (model, &iter) + 1;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static void
|
|
set_rows (GtkTreeView *treeview, guint i)
|
|
{
|
|
g_assert (i == count_children (gtk_tree_view_get_model (treeview), NULL));
|
|
g_object_set_data (G_OBJECT (treeview), "rows", GUINT_TO_POINTER (i));
|
|
}
|
|
|
|
static guint
|
|
get_rows (GtkTreeView *treeview)
|
|
{
|
|
return GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (treeview), "rows"));
|
|
}
|
|
|
|
static void
|
|
log_operation_for_path (GtkTreePath *path,
|
|
const char *operation_name)
|
|
{
|
|
char *path_string;
|
|
|
|
path_string = path ? gtk_tree_path_to_string (path) : g_strdup ("");
|
|
|
|
g_printerr ("%10s %s\n", operation_name, path_string);
|
|
|
|
g_free (path_string);
|
|
}
|
|
|
|
static void
|
|
log_operation (GtkTreeModel *model,
|
|
GtkTreeIter *iter,
|
|
const char *operation_name)
|
|
{
|
|
GtkTreePath *path;
|
|
|
|
path = gtk_tree_model_get_path (model, iter);
|
|
|
|
log_operation_for_path (path, operation_name);
|
|
|
|
gtk_tree_path_free (path);
|
|
}
|
|
|
|
/* moves iter to the next iter in the model in the display order
|
|
* inside a treeview. Returns FALSE if no more rows exist.
|
|
*/
|
|
static gboolean
|
|
tree_model_iter_step (GtkTreeModel *model,
|
|
GtkTreeIter *iter)
|
|
{
|
|
GtkTreeIter tmp;
|
|
|
|
if (gtk_tree_model_iter_children (model, &tmp, iter))
|
|
{
|
|
*iter = tmp;
|
|
return TRUE;
|
|
}
|
|
|
|
do {
|
|
tmp = *iter;
|
|
|
|
if (gtk_tree_model_iter_next (model, iter))
|
|
return TRUE;
|
|
}
|
|
while (gtk_tree_model_iter_parent (model, iter, &tmp));
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/* NB: may include invisible iters (because they are collapsed) */
|
|
static void
|
|
tree_view_random_iter (GtkTreeView *treeview,
|
|
GtkTreeIter *iter)
|
|
{
|
|
guint n_rows = get_rows (treeview);
|
|
guint i = g_random_int_range (0, n_rows);
|
|
GtkTreeModel *model;
|
|
|
|
model = gtk_tree_view_get_model (treeview);
|
|
|
|
if (!gtk_tree_model_get_iter_first (model, iter))
|
|
return;
|
|
|
|
while (i-- > 0)
|
|
{
|
|
if (!tree_model_iter_step (model, iter))
|
|
{
|
|
g_assert_not_reached ();
|
|
return;
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
static void
|
|
delete (GtkTreeView *treeview)
|
|
{
|
|
guint n_rows = get_rows (treeview);
|
|
GtkTreeModel *model;
|
|
GtkTreeIter iter;
|
|
|
|
model = gtk_tree_view_get_model (treeview);
|
|
|
|
tree_view_random_iter (treeview, &iter);
|
|
|
|
n_rows -= count_children (model, &iter) + 1;
|
|
log_operation (model, &iter, "remove");
|
|
gtk_tree_store_remove (GTK_TREE_STORE (model), &iter);
|
|
set_rows (treeview, n_rows);
|
|
}
|
|
|
|
static void
|
|
add_one (GtkTreeModel *model,
|
|
GtkTreeIter *iter)
|
|
{
|
|
guint n = gtk_tree_model_iter_n_children (model, iter);
|
|
GtkTreeIter new_iter;
|
|
static guint counter = 0;
|
|
|
|
if (n > 0 && g_random_boolean ())
|
|
{
|
|
GtkTreeIter child;
|
|
gtk_tree_model_iter_nth_child (model, &child, iter, g_random_int_range (0, n));
|
|
add_one (model, &child);
|
|
return;
|
|
}
|
|
|
|
gtk_tree_store_insert_with_values (GTK_TREE_STORE (model),
|
|
&new_iter,
|
|
iter,
|
|
g_random_int_range (-1, n),
|
|
0, ++counter,
|
|
-1);
|
|
log_operation (model, &new_iter, "add");
|
|
}
|
|
|
|
static void
|
|
add (GtkTreeView *treeview)
|
|
{
|
|
GtkTreeModel *model;
|
|
|
|
model = gtk_tree_view_get_model (treeview);
|
|
add_one (model, NULL);
|
|
|
|
set_rows (treeview, get_rows (treeview) + 1);
|
|
}
|
|
|
|
static void
|
|
add_or_delete (GtkTreeView *treeview)
|
|
{
|
|
guint n_rows = get_rows (treeview);
|
|
|
|
if (g_random_int_range (MIN_ROWS, MAX_ROWS) >= n_rows)
|
|
add (treeview);
|
|
else
|
|
delete (treeview);
|
|
}
|
|
|
|
/* XXX: We only expand/collapse from the top and not randomly */
|
|
static void
|
|
expand (GtkTreeView *treeview)
|
|
{
|
|
GtkTreeModel *model;
|
|
GtkTreeIter iter;
|
|
GtkTreePath *path;
|
|
gboolean valid;
|
|
|
|
model = gtk_tree_view_get_model (treeview);
|
|
|
|
for (valid = gtk_tree_model_get_iter_first (model, &iter);
|
|
valid;
|
|
valid = tree_model_iter_step (model, &iter))
|
|
{
|
|
if (gtk_tree_model_iter_has_child (model, &iter))
|
|
{
|
|
path = gtk_tree_model_get_path (model, &iter);
|
|
if (!gtk_tree_view_row_expanded (treeview, path))
|
|
{
|
|
log_operation (model, &iter, "expand");
|
|
gtk_tree_view_expand_row (treeview, path, FALSE);
|
|
gtk_tree_path_free (path);
|
|
return;
|
|
}
|
|
gtk_tree_path_free (path);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
collapse (GtkTreeView *treeview)
|
|
{
|
|
GtkTreeModel *model;
|
|
GtkTreeIter iter;
|
|
GtkTreePath *last, *path;
|
|
gboolean valid;
|
|
|
|
model = gtk_tree_view_get_model (treeview);
|
|
last = NULL;
|
|
|
|
for (valid = gtk_tree_model_get_iter_first (model, &iter);
|
|
valid;
|
|
valid = tree_model_iter_step (model, &iter))
|
|
{
|
|
path = gtk_tree_model_get_path (model, &iter);
|
|
if (gtk_tree_view_row_expanded (treeview, path))
|
|
{
|
|
if (last)
|
|
gtk_tree_path_free (last);
|
|
last = path;
|
|
}
|
|
else
|
|
gtk_tree_path_free (path);
|
|
}
|
|
|
|
if (last)
|
|
{
|
|
log_operation_for_path (last, "collapse");
|
|
gtk_tree_view_collapse_row (treeview, last);
|
|
gtk_tree_path_free (last);
|
|
}
|
|
}
|
|
|
|
static void
|
|
select_ (GtkTreeView *treeview)
|
|
{
|
|
GtkTreeIter iter;
|
|
|
|
tree_view_random_iter (treeview, &iter);
|
|
|
|
log_operation (gtk_tree_view_get_model (treeview), &iter, "select");
|
|
gtk_tree_selection_select_iter (gtk_tree_view_get_selection (treeview),
|
|
&iter);
|
|
}
|
|
|
|
static void
|
|
unselect (GtkTreeView *treeview)
|
|
{
|
|
GtkTreeIter iter;
|
|
|
|
tree_view_random_iter (treeview, &iter);
|
|
|
|
log_operation (gtk_tree_view_get_model (treeview), &iter, "unselect");
|
|
gtk_tree_selection_unselect_iter (gtk_tree_view_get_selection (treeview),
|
|
&iter);
|
|
}
|
|
|
|
static void
|
|
reset_model (GtkTreeView *treeview)
|
|
{
|
|
GtkTreeSelection *selection;
|
|
GtkTreeModel *model;
|
|
GList *list, *selected;
|
|
GtkTreePath *cursor;
|
|
|
|
selection = gtk_tree_view_get_selection (treeview);
|
|
model = g_object_ref (gtk_tree_view_get_model (treeview));
|
|
|
|
log_operation_for_path (NULL, "reset");
|
|
|
|
selected = gtk_tree_selection_get_selected_rows (selection, NULL);
|
|
gtk_tree_view_get_cursor (treeview, &cursor, NULL);
|
|
|
|
gtk_tree_view_set_model (treeview, NULL);
|
|
gtk_tree_view_set_model (treeview, model);
|
|
|
|
if (cursor)
|
|
{
|
|
gtk_tree_view_set_cursor (treeview, cursor, NULL, FALSE);
|
|
gtk_tree_path_free (cursor);
|
|
}
|
|
for (list = selected; list; list = list->next)
|
|
{
|
|
gtk_tree_selection_select_path (selection, list->data);
|
|
}
|
|
g_list_free_full (selected, (GDestroyNotify) gtk_tree_path_free);
|
|
|
|
g_object_unref (model);
|
|
}
|
|
|
|
/* sanity checks */
|
|
|
|
static void
|
|
assert_row_reference_is_path (GtkTreeRowReference *ref,
|
|
GtkTreePath *path)
|
|
{
|
|
GtkTreePath *expected;
|
|
|
|
if (ref == NULL)
|
|
{
|
|
g_assert (path == NULL);
|
|
return;
|
|
}
|
|
|
|
g_assert (path != NULL);
|
|
g_assert (gtk_tree_row_reference_valid (ref));
|
|
|
|
expected = gtk_tree_row_reference_get_path (ref);
|
|
g_assert (expected != NULL);
|
|
g_assert (gtk_tree_path_compare (expected, path) == 0);
|
|
gtk_tree_path_free (expected);
|
|
}
|
|
|
|
static void
|
|
check_cursor (GtkTreeView *treeview)
|
|
{
|
|
GtkTreeRowReference *ref = g_object_get_data (G_OBJECT (treeview), "cursor");
|
|
GtkTreePath *cursor;
|
|
|
|
gtk_tree_view_get_cursor (treeview, &cursor, NULL);
|
|
assert_row_reference_is_path (ref, cursor);
|
|
|
|
if (cursor)
|
|
gtk_tree_path_free (cursor);
|
|
}
|
|
|
|
static void
|
|
check_selection_item (GtkTreeModel *model,
|
|
GtkTreePath *path,
|
|
GtkTreeIter *iter,
|
|
gpointer listp)
|
|
{
|
|
GList **list = listp;
|
|
|
|
g_assert (*list);
|
|
assert_row_reference_is_path ((*list)->data, path);
|
|
*list = (*list)->next;
|
|
}
|
|
|
|
static void
|
|
check_selection (GtkTreeView *treeview)
|
|
{
|
|
GList *selection = g_object_get_data (G_OBJECT (treeview), "selection");
|
|
|
|
gtk_tree_selection_selected_foreach (gtk_tree_view_get_selection (treeview),
|
|
check_selection_item,
|
|
&selection);
|
|
}
|
|
|
|
static void
|
|
check_sanity (GtkTreeView *treeview)
|
|
{
|
|
check_cursor (treeview);
|
|
check_selection (treeview);
|
|
}
|
|
|
|
static gboolean
|
|
dance (gpointer treeview)
|
|
{
|
|
static const DoStuffFunc funcs[] = {
|
|
add_or_delete,
|
|
add_or_delete,
|
|
expand,
|
|
collapse,
|
|
select_,
|
|
unselect,
|
|
reset_model
|
|
};
|
|
guint i;
|
|
|
|
i = g_random_int_range (0, G_N_ELEMENTS(funcs));
|
|
|
|
funcs[i] (treeview);
|
|
|
|
check_sanity (treeview);
|
|
|
|
return G_SOURCE_CONTINUE;
|
|
}
|
|
|
|
static void
|
|
cursor_changed_cb (GtkTreeView *treeview,
|
|
gpointer unused)
|
|
{
|
|
GtkTreePath *path;
|
|
GtkTreeRowReference *ref;
|
|
|
|
gtk_tree_view_get_cursor (treeview, &path, NULL);
|
|
if (path)
|
|
{
|
|
ref = gtk_tree_row_reference_new (gtk_tree_view_get_model (treeview),
|
|
path);
|
|
gtk_tree_path_free (path);
|
|
}
|
|
else
|
|
ref = NULL;
|
|
g_object_set_data_full (G_OBJECT (treeview), "cursor", ref, (GDestroyNotify) gtk_tree_row_reference_free);
|
|
}
|
|
|
|
static void
|
|
selection_list_free (gpointer list)
|
|
{
|
|
g_list_free_full (list, (GDestroyNotify) gtk_tree_row_reference_free);
|
|
}
|
|
|
|
static void
|
|
selection_changed_cb (GtkTreeSelection *tree_selection,
|
|
gpointer unused)
|
|
{
|
|
GList *selected, *list;
|
|
GtkTreeModel *model;
|
|
|
|
selected = gtk_tree_selection_get_selected_rows (tree_selection, &model);
|
|
|
|
for (list = selected; list; list = list->next)
|
|
{
|
|
GtkTreePath *path = list->data;
|
|
|
|
list->data = gtk_tree_row_reference_new (model, path);
|
|
gtk_tree_path_free (path);
|
|
}
|
|
|
|
g_object_set_data_full (G_OBJECT (gtk_tree_selection_get_tree_view (tree_selection)),
|
|
"selection",
|
|
selected,
|
|
selection_list_free);
|
|
}
|
|
|
|
static void
|
|
setup_sanity_checks (GtkTreeView *treeview)
|
|
{
|
|
g_signal_connect (treeview, "cursor-changed", G_CALLBACK (cursor_changed_cb), NULL);
|
|
cursor_changed_cb (treeview, NULL);
|
|
g_signal_connect (gtk_tree_view_get_selection (treeview), "changed", G_CALLBACK (selection_changed_cb), NULL);
|
|
selection_changed_cb (gtk_tree_view_get_selection (treeview), NULL);
|
|
}
|
|
|
|
static void
|
|
quit_cb (GtkWidget *widget,
|
|
gpointer data)
|
|
{
|
|
gboolean *done = data;
|
|
|
|
*done = TRUE;
|
|
|
|
g_main_context_wakeup (NULL);
|
|
}
|
|
|
|
int
|
|
main (int argc,
|
|
char **argv)
|
|
{
|
|
GtkWidget *window;
|
|
GtkWidget *sw;
|
|
GtkWidget *treeview;
|
|
GtkTreeModel *model;
|
|
guint i;
|
|
gboolean done = FALSE;
|
|
|
|
gtk_init ();
|
|
|
|
if (g_getenv ("RTL"))
|
|
gtk_widget_set_default_direction (GTK_TEXT_DIR_RTL);
|
|
|
|
window = gtk_window_new ();
|
|
g_signal_connect (window, "destroy", G_CALLBACK (quit_cb), &done);
|
|
gtk_window_set_default_size (GTK_WINDOW (window), 430, 400);
|
|
|
|
sw = gtk_scrolled_window_new ();
|
|
gtk_widget_set_hexpand (sw, TRUE);
|
|
gtk_widget_set_vexpand (sw, TRUE);
|
|
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
|
|
GTK_POLICY_AUTOMATIC,
|
|
GTK_POLICY_AUTOMATIC);
|
|
gtk_window_set_child (GTK_WINDOW (window), sw);
|
|
|
|
model = GTK_TREE_MODEL (gtk_tree_store_new (1, G_TYPE_UINT));
|
|
treeview = gtk_tree_view_new_with_model (model);
|
|
g_object_unref (model);
|
|
setup_sanity_checks (GTK_TREE_VIEW (treeview));
|
|
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
|
|
0,
|
|
"Counter",
|
|
gtk_cell_renderer_text_new (),
|
|
"text", 0,
|
|
NULL);
|
|
for (i = 0; i < (MIN_ROWS + MAX_ROWS) / 2; i++)
|
|
add (GTK_TREE_VIEW (treeview));
|
|
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), treeview);
|
|
|
|
gtk_widget_show (window);
|
|
|
|
g_idle_add (dance, treeview);
|
|
|
|
while (!done)
|
|
g_main_context_iteration (NULL, TRUE);
|
|
|
|
return 0;
|
|
}
|
|
|