/* testtreeflow.c
* Copyright ( C ) 2001 Red Hat , Inc
* Author : Jonathan Blandford
*
* This library is free software ; you can redistribute it and / or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation ; either
* version 2 of the License , or ( at your option ) any later version .
*
* This library is distributed in the hope that it will be useful ,
* but WITHOUT ANY WARRANTY ; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the GNU
* Library General Public License for more details .
*
* You should have received a copy of the GNU Library General Public
* License along with this library . If not , see < http : //www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gtk/gtk.h>
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
GtkTreeModel *model = NULL;
static GRand *grand = NULL;
GtkTreeSelection *selection = NULL;
enum
{
TEXT_COLUMN,
NUM_COLUMNS
};
static const char *words[] =
{
"Boom" ,
"Borp" ,
"Multiline\ntext" ,
"Bingo" ,
"Veni\nVedi\nVici" ,
NULL
};
#define NUM_WORDS 5
#define NUM_ROWS 100
static void
initialize_model (void )
{
int i;
GtkTreeIter iter;
model = (GtkTreeModel *) gtk_list_store_new (NUM_COLUMNS, G_TYPE_STRING);
grand = g_rand_new ();
for (i = 0 ; i < NUM_ROWS; i++)
{
gtk_list_store_append (GTK_LIST_STORE (model), &iter);
gtk_list_store_set (GTK_LIST_STORE (model), &iter,
TEXT_COLUMN, words[g_rand_int_range (grand, 0 , NUM_WORDS)],
-1 );
}
}
static void
futz_row (void )
{
int i;
GtkTreePath *path;
GtkTreeIter iter;
GtkTreeIter iter2;
i = g_rand_int_range (grand, 0 ,
gtk_tree_model_iter_n_children (model, NULL));
path = gtk_tree_path_new ();
gtk_tree_path_append_index (path, i);
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_path_free (path);
if (gtk_tree_selection_iter_is_selected (selection, &iter))
return ;
switch (g_rand_int_range (grand, 0 , 3 ))
{
case 0 :
/* insert */
gtk_list_store_insert_after (GTK_LIST_STORE (model),
&iter2, &iter);
gtk_list_store_set (GTK_LIST_STORE (model), &iter2,
TEXT_COLUMN, words[g_rand_int_range (grand, 0 , NUM_WORDS)],
-1 );
break ;
case 1 :
/* delete */
if (gtk_tree_model_iter_n_children (model, NULL) == 0 )
return ;
gtk_list_store_remove (GTK_LIST_STORE (model), &iter);
break ;
case 2 :
/* modify */
return ;
if (gtk_tree_model_iter_n_children (model, NULL) == 0 )
return ;
gtk_list_store_set (GTK_LIST_STORE (model), &iter,
TEXT_COLUMN, words[g_rand_int_range (grand, 0 , NUM_WORDS)],
-1 );
break ;
default :
g_assert_not_reached ();
}
}
static gboolean
futz (void )
{
int i;
for (i = 0 ; i < 15 ; i++)
futz_row ();
g_print ("Number of rows: %d\n" , gtk_tree_model_iter_n_children (model, NULL));
return G_SOURCE_CONTINUE;
}
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 *vbox;
GtkWidget *scrolled_window;
GtkWidget *tree_view;
GtkWidget *hbox;
GtkWidget *button;
GtkTreePath *path;
gboolean done = FALSE ;
gtk_init ();
path = gtk_tree_path_new_from_string ("80" );
window = gtk_window_new ();
gtk_window_set_title (GTK_WINDOW (window), "Reflow test" );
g_signal_connect (window, "destroy" , G_CALLBACK (quit_cb), &done);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8 );
gtk_box_append (GTK_BOX (vbox), gtk_label_new ("Incremental Reflow Test" ));
gtk_window_set_child (GTK_WINDOW (window), vbox);
scrolled_window = gtk_scrolled_window_new ();
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_widget_set_vexpand (scrolled_window, TRUE );
gtk_box_append (GTK_BOX (vbox), scrolled_window);
initialize_model ();
tree_view = gtk_tree_view_new_with_model (model);
gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (tree_view), path, NULL, TRUE , 0 .5 , 0 .0 );
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
gtk_tree_selection_select_path (selection, path);
gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tree_view), FALSE );
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
-1 ,
NULL,
gtk_cell_renderer_text_new (),
"text" , TEXT_COLUMN,
NULL);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolled_window), tree_view);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0 );
gtk_box_append (GTK_BOX (vbox), hbox);
button = gtk_button_new_with_mnemonic ("<b>_Futz!!</b>" );
gtk_box_append (GTK_BOX (hbox), button);
gtk_label_set_use_markup (GTK_LABEL (gtk_button_get_child (GTK_BUTTON (button))), TRUE );
g_signal_connect (button, "clicked" , G_CALLBACK (futz), NULL);
g_signal_connect (button, "realize" , G_CALLBACK (gtk_widget_grab_focus), NULL);
gtk_window_set_default_size (GTK_WINDOW (window), 300 , 400 );
gtk_window_present (GTK_WINDOW (window));
g_timeout_add (1000 , (GSourceFunc) futz, NULL);
while (!done)
g_main_context_iteration (NULL, TRUE );
return 0 ;
}
Messung V0.5 in Prozent C=99 H=89 G=94
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-07-03)
¤
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