1/* testcombochange.c
2 * Copyright (C) 2004 Red Hat, Inc.
3 * Author: Owen Taylor
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
17 */
18
19#include "config.h"
20#include <gtk/gtk.h>
21#include <stdarg.h>
22
23GtkWidget *text_view;
24GtkListStore *model;
25GArray *contents;
26
27static char next_value = 'A';
28
29G_GNUC_PRINTF (1, 2) static void
30combochange_log (const char *fmt,
31 ...)
32{
33 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
34 GtkTextIter iter;
35 va_list vap;
36 char *msg;
37 GString *order_string;
38 GtkTextMark *tmp_mark;
39 int i;
40
41 va_start (vap, fmt);
42
43 msg = g_strdup_vprintf (format: fmt, args: vap);
44
45 gtk_text_buffer_get_end_iter (buffer, iter: &iter);
46 gtk_text_buffer_insert (buffer, iter: &iter, text: msg, len: -1);
47
48 order_string = g_string_new (init: "\n ");
49 for (i = 0; i < contents->len; i++)
50 {
51 if (i)
52 g_string_append_c (order_string, ' ');
53 g_string_append_c (order_string, g_array_index (contents, char, i));
54 }
55 g_string_append_c (order_string, '\n');
56 gtk_text_buffer_insert (buffer, iter: &iter, text: order_string->str, len: -1);
57 g_string_free (string: order_string, TRUE);
58
59 tmp_mark = gtk_text_buffer_create_mark (buffer, NULL, where: &iter, FALSE);
60 gtk_text_view_scroll_mark_onscreen (GTK_TEXT_VIEW (text_view), mark: tmp_mark);
61 gtk_text_buffer_delete_mark (buffer, mark: tmp_mark);
62
63 g_free (mem: msg);
64}
65
66static void
67on_insert (void)
68{
69 GtkTreeIter iter;
70
71 int insert_pos;
72 char new_value[2];
73
74 new_value[0] = next_value++;
75 new_value[1] = '\0';
76
77 if (next_value > 'Z')
78 next_value = 'A';
79
80 if (contents->len)
81 insert_pos = g_random_int_range (begin: 0, end: contents->len + 1);
82 else
83 insert_pos = 0;
84
85 gtk_list_store_insert (list_store: model, iter: &iter, position: insert_pos);
86 gtk_list_store_set (list_store: model, iter: &iter, 0, new_value, -1);
87
88 g_array_insert_val (contents, insert_pos, new_value);
89
90 combochange_log (fmt: "Inserted '%c' at position %d", new_value[0], insert_pos);
91}
92
93static void
94on_delete (void)
95{
96 GtkTreeIter iter;
97
98 int delete_pos;
99 char old_val;
100
101 if (!contents->len)
102 return;
103
104 delete_pos = g_random_int_range (begin: 0, end: contents->len);
105 gtk_tree_model_iter_nth_child (GTK_TREE_MODEL (model), iter: &iter, NULL, n: delete_pos);
106
107 gtk_list_store_remove (list_store: model, iter: &iter);
108
109 old_val = g_array_index (contents, char, delete_pos);
110 g_array_remove_index (array: contents, index_: delete_pos);
111 combochange_log (fmt: "Deleted '%c' from position %d", old_val, delete_pos);
112}
113
114static void
115on_reorder (void)
116{
117 GArray *new_contents;
118 int *shuffle_array;
119 int i;
120
121 shuffle_array = g_new (int, contents->len);
122
123 for (i = 0; i < contents->len; i++)
124 shuffle_array[i] = i;
125
126 for (i = 0; i + 1 < contents->len; i++)
127 {
128 int pos = g_random_int_range (begin: i, end: contents->len);
129 int tmp;
130
131 tmp = shuffle_array[i];
132 shuffle_array[i] = shuffle_array[pos];
133 shuffle_array[pos] = tmp;
134 }
135
136 gtk_list_store_reorder (store: model, new_order: shuffle_array);
137
138 new_contents = g_array_new (FALSE, FALSE, element_size: sizeof (char));
139 for (i = 0; i < contents->len; i++)
140 g_array_append_val (new_contents,
141 g_array_index (contents, char, shuffle_array[i]));
142 g_array_free (array: contents, TRUE);
143 contents = new_contents;
144
145 combochange_log (fmt: "Reordered array");
146
147 g_free (mem: shuffle_array);
148}
149
150static int n_animations = 0;
151static int timer = 0;
152
153static int
154animation_timer (gpointer data)
155{
156 switch (g_random_int_range (begin: 0, end: 3))
157 {
158 case 0:
159 on_insert ();
160 break;
161 case 1:
162 on_delete ();
163 break;
164 case 2:
165 on_reorder ();
166 break;
167 default:
168 g_assert_not_reached ();
169 }
170
171 n_animations--;
172 return n_animations > 0;
173}
174
175static void
176on_animate (void)
177{
178 n_animations += 20;
179
180 timer = g_timeout_add (interval: 1000, function: (GSourceFunc) animation_timer, NULL);
181}
182
183int
184main (int argc, char **argv)
185{
186 GtkWidget *content_area;
187 GtkWidget *window;
188 GtkWidget *scrolled_window;
189 GtkWidget *hbox;
190 GtkWidget *button_vbox;
191 GtkWidget *combo_vbox;
192 GtkWidget *button;
193 GtkWidget *combo;
194 GtkCellRenderer *cell_renderer;
195
196 gtk_init ();
197
198 model = gtk_list_store_new (n_columns: 1, G_TYPE_STRING);
199 contents = g_array_new (FALSE, FALSE, element_size: sizeof (char));
200
201 window = gtk_window_new ();
202 gtk_window_set_title (GTK_WINDOW (window), title: "ComboBox Change");
203
204 content_area = gtk_box_new (orientation: GTK_ORIENTATION_VERTICAL, spacing: 12);
205 gtk_window_set_child (GTK_WINDOW (window), child: content_area);
206
207 hbox = gtk_box_new (orientation: GTK_ORIENTATION_HORIZONTAL, spacing: 12);
208 gtk_box_append (GTK_BOX (content_area), child: hbox);
209
210 combo_vbox = gtk_box_new (orientation: GTK_ORIENTATION_VERTICAL, spacing: 8);
211 gtk_box_append (GTK_BOX (hbox), child: combo_vbox);
212
213 combo = gtk_combo_box_new_with_model (GTK_TREE_MODEL (model));
214 cell_renderer = gtk_cell_renderer_text_new ();
215 gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo), cell: cell_renderer, TRUE);
216 gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo), cell: cell_renderer,
217 "text", 0, NULL);
218 gtk_widget_set_margin_start (widget: combo, margin: 12);
219 gtk_box_append (GTK_BOX (combo_vbox), child: combo);
220
221 scrolled_window = gtk_scrolled_window_new ();
222 gtk_widget_set_hexpand (widget: scrolled_window, TRUE);
223 gtk_box_append (GTK_BOX (hbox), child: scrolled_window);
224 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
225 hscrollbar_policy: GTK_POLICY_AUTOMATIC, vscrollbar_policy: GTK_POLICY_AUTOMATIC);
226
227 text_view = gtk_text_view_new ();
228 gtk_text_view_set_editable (GTK_TEXT_VIEW (text_view), FALSE);
229 gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (text_view), FALSE);
230
231 gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolled_window), child: text_view);
232
233 button_vbox = gtk_box_new (orientation: GTK_ORIENTATION_VERTICAL, spacing: 8);
234 gtk_box_append (GTK_BOX (hbox), child: button_vbox);
235
236 gtk_window_set_default_size (GTK_WINDOW (window), width: 500, height: 300);
237
238 button = gtk_button_new_with_label (label: "Insert");
239 gtk_box_append (GTK_BOX (button_vbox), child: button);
240 g_signal_connect (button, "clicked", G_CALLBACK (on_insert), NULL);
241
242 button = gtk_button_new_with_label (label: "Delete");
243 gtk_box_append (GTK_BOX (button_vbox), child: button);
244 g_signal_connect (button, "clicked", G_CALLBACK (on_delete), NULL);
245
246 button = gtk_button_new_with_label (label: "Reorder");
247 gtk_box_append (GTK_BOX (button_vbox), child: button);
248 g_signal_connect (button, "clicked", G_CALLBACK (on_reorder), NULL);
249
250 button = gtk_button_new_with_label (label: "Animate");
251 gtk_box_append (GTK_BOX (button_vbox), child: button);
252 g_signal_connect (button, "clicked", G_CALLBACK (on_animate), NULL);
253
254 GtkWidget *close_button = gtk_button_new_with_mnemonic (label: "_Close");
255 gtk_widget_set_hexpand (widget: close_button, TRUE);
256 gtk_box_append (GTK_BOX (content_area), child: close_button);
257
258 gtk_widget_show (widget: window);
259
260 GMainLoop *loop = g_main_loop_new (NULL, FALSE);
261
262 g_signal_connect_swapped (close_button, "clicked",
263 G_CALLBACK (gtk_window_destroy),
264 window);
265 g_signal_connect_swapped (window, "destroy",
266 G_CALLBACK (g_main_loop_quit),
267 loop);
268
269 g_main_loop_run (loop);
270
271 g_main_loop_unref (loop);
272
273 return 0;
274}
275

source code of gtk/tests/testcombochange.c