2 * Copyright (C) 2007 Xan López <xan@gnome.org>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
24 spin_ythickness_cb (GtkSpinButton *spin, gpointer user_data)
26 GtkWidget *frame = user_data;
27 GtkCssProvider *provider;
28 GtkStyleContext *context;
32 context = gtk_widget_get_style_context (frame);
33 provider = g_object_get_data (G_OBJECT (frame), "provider");
36 provider = gtk_css_provider_new ();
37 g_object_set_data (G_OBJECT (frame), "provider", provider);
38 gtk_style_context_add_provider (context,
39 GTK_STYLE_PROVIDER (provider),
40 GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
43 gtk_style_context_get_padding (context, GTK_STATE_FLAG_NORMAL, &pad);
45 data = g_strdup_printf ("GtkFrame { padding: %d %d }",
47 (gint)gtk_spin_button_get_value (spin));
49 gtk_css_provider_load_from_data (provider, data, -1, NULL);
52 gtk_style_context_invalidate (context);
53 gtk_widget_queue_resize (frame);
57 spin_xthickness_cb (GtkSpinButton *spin, gpointer user_data)
59 GtkWidget *frame = user_data;
60 GtkCssProvider *provider;
61 GtkStyleContext *context;
65 context = gtk_widget_get_style_context (frame);
66 provider = g_object_get_data (G_OBJECT (frame), "provider");
69 provider = gtk_css_provider_new ();
70 g_object_set_data (G_OBJECT (frame), "provider", provider);
71 gtk_style_context_add_provider (context,
72 GTK_STYLE_PROVIDER (provider),
73 GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
76 gtk_style_context_get_padding (context, GTK_STATE_FLAG_NORMAL, &pad);
78 data = g_strdup_printf ("GtkFrame { padding: %d %d }",
79 (gint)gtk_spin_button_get_value (spin),
82 gtk_css_provider_load_from_data (provider, data, -1, NULL);
85 gtk_style_context_invalidate (context);
86 gtk_widget_queue_resize (frame);
89 /* Function to normalize rounding errors in FP arithmetic to
95 double_normalize (gdouble n)
97 if (fabs (1.0 - n) < EPSILON)
106 spin_xalign_cb (GtkSpinButton *spin, GtkFrame *frame)
111 xalign = double_normalize (gtk_spin_button_get_value (spin));
112 gtk_frame_get_label_align (frame, NULL, &yalign);
113 gtk_frame_set_label_align (frame, xalign, yalign);
117 spin_yalign_cb (GtkSpinButton *spin, GtkFrame *frame)
122 yalign = double_normalize (gtk_spin_button_get_value (spin));
123 gtk_frame_get_label_align (frame, &xalign, NULL);
124 gtk_frame_set_label_align (frame, xalign, yalign);
127 int main (int argc, char **argv)
129 GtkStyleContext *context;
131 GtkWidget *window, *frame, *xthickness_spin, *ythickness_spin, *vbox;
132 GtkWidget *xalign_spin, *yalign_spin, *button, *table, *label;
133 gfloat xalign, yalign;
135 gtk_init (&argc, &argv);
137 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
138 gtk_container_set_border_width (GTK_CONTAINER (window), 5);
139 gtk_window_set_default_size (GTK_WINDOW (window), 300, 300);
141 g_signal_connect (G_OBJECT (window), "delete-event", gtk_main_quit, NULL);
143 vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
144 gtk_container_add (GTK_CONTAINER (window), vbox);
146 frame = gtk_frame_new ("Testing");
147 gtk_box_pack_start (GTK_BOX (vbox), frame, TRUE, TRUE, 0);
149 button = gtk_button_new_with_label ("Hello!");
150 gtk_container_add (GTK_CONTAINER (frame), button);
152 table = gtk_table_new (4, 2, FALSE);
153 gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
155 context = gtk_widget_get_style_context (frame);
156 gtk_style_context_get_padding (context, GTK_STATE_FLAG_NORMAL, &pad);
158 /* Spin to control xthickness */
159 label = gtk_label_new ("xthickness: ");
160 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 0, 1);
162 xthickness_spin = gtk_spin_button_new_with_range (0, 250, 1);
163 g_signal_connect (G_OBJECT (xthickness_spin), "value-changed", G_CALLBACK (spin_xthickness_cb), frame);
164 gtk_spin_button_set_value (GTK_SPIN_BUTTON (xthickness_spin), pad.left);
165 gtk_table_attach_defaults (GTK_TABLE (table), xthickness_spin, 1, 2, 0, 1);
167 /* Spin to control ythickness */
168 label = gtk_label_new ("ythickness: ");
169 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 1, 2);
171 ythickness_spin = gtk_spin_button_new_with_range (0, 250, 1);
172 g_signal_connect (G_OBJECT (ythickness_spin), "value-changed", G_CALLBACK (spin_ythickness_cb), frame);
173 gtk_spin_button_set_value (GTK_SPIN_BUTTON (ythickness_spin), pad.top);
174 gtk_table_attach_defaults (GTK_TABLE (table), ythickness_spin, 1, 2, 1, 2);
176 gtk_frame_get_label_align (GTK_FRAME (frame), &xalign, &yalign);
178 /* Spin to control label xalign */
179 label = gtk_label_new ("xalign: ");
180 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 2, 3);
182 xalign_spin = gtk_spin_button_new_with_range (0.0, 1.0, 0.1);
183 g_signal_connect (G_OBJECT (xalign_spin), "value-changed", G_CALLBACK (spin_xalign_cb), frame);
184 gtk_spin_button_set_value (GTK_SPIN_BUTTON (xalign_spin), xalign);
185 gtk_table_attach_defaults (GTK_TABLE (table), xalign_spin, 1, 2, 2, 3);
187 /* Spin to control label yalign */
188 label = gtk_label_new ("yalign: ");
189 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 3, 4);
191 yalign_spin = gtk_spin_button_new_with_range (0.0, 1.0, 0.1);
192 g_signal_connect (G_OBJECT (yalign_spin), "value-changed", G_CALLBACK (spin_yalign_cb), frame);
193 gtk_spin_button_set_value (GTK_SPIN_BUTTON (yalign_spin), yalign);
194 gtk_table_attach_defaults (GTK_TABLE (table), yalign_spin, 1, 2, 3, 4);
196 gtk_widget_show_all (window);