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 (context, 0, "padding", &pad, NULL);
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);
51 gtk_border_free (pad);
53 gtk_style_context_invalidate (context);
54 gtk_widget_queue_resize (frame);
58 spin_xthickness_cb (GtkSpinButton *spin, gpointer user_data)
60 GtkWidget *frame = user_data;
61 GtkCssProvider *provider;
62 GtkStyleContext *context;
66 context = gtk_widget_get_style_context (frame);
67 provider = g_object_get_data (G_OBJECT (frame), "provider");
70 provider = gtk_css_provider_new ();
71 g_object_set_data (G_OBJECT (frame), "provider", provider);
72 gtk_style_context_add_provider (context,
73 GTK_STYLE_PROVIDER (provider),
74 GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
77 gtk_style_context_get (context, 0, "padding", &pad, NULL);
79 data = g_strdup_printf ("GtkFrame { padding: %d %d }",
80 (gint)gtk_spin_button_get_value (spin),
83 gtk_css_provider_load_from_data (provider, data, -1, NULL);
85 gtk_border_free (pad);
87 gtk_style_context_invalidate (context);
88 gtk_widget_queue_resize (frame);
91 /* Function to normalize rounding errors in FP arithmetic to
97 double_normalize (gdouble n)
99 if (fabs (1.0 - n) < EPSILON)
101 else if (n < EPSILON)
108 spin_xalign_cb (GtkSpinButton *spin, GtkFrame *frame)
113 xalign = double_normalize (gtk_spin_button_get_value (spin));
114 gtk_frame_get_label_align (frame, NULL, &yalign);
115 gtk_frame_set_label_align (frame, xalign, yalign);
119 spin_yalign_cb (GtkSpinButton *spin, GtkFrame *frame)
124 yalign = double_normalize (gtk_spin_button_get_value (spin));
125 gtk_frame_get_label_align (frame, &xalign, NULL);
126 gtk_frame_set_label_align (frame, xalign, yalign);
129 int main (int argc, char **argv)
131 GtkStyleContext *context;
133 GtkWidget *window, *frame, *xthickness_spin, *ythickness_spin, *vbox;
134 GtkWidget *xalign_spin, *yalign_spin, *button, *table, *label;
135 gfloat xalign, yalign;
137 gtk_init (&argc, &argv);
139 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
140 gtk_container_set_border_width (GTK_CONTAINER (window), 5);
141 gtk_window_set_default_size (GTK_WINDOW (window), 300, 300);
143 g_signal_connect (G_OBJECT (window), "delete-event", gtk_main_quit, NULL);
145 vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
146 gtk_container_add (GTK_CONTAINER (window), vbox);
148 frame = gtk_frame_new ("Testing");
149 gtk_box_pack_start (GTK_BOX (vbox), frame, TRUE, TRUE, 0);
151 button = gtk_button_new_with_label ("Hello!");
152 gtk_container_add (GTK_CONTAINER (frame), button);
154 table = gtk_table_new (4, 2, FALSE);
155 gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
157 context = gtk_widget_get_style_context (frame);
158 gtk_style_context_get (context, 0, "padding", &pad, NULL);
160 /* Spin to control xthickness */
161 label = gtk_label_new ("xthickness: ");
162 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 0, 1);
164 xthickness_spin = gtk_spin_button_new_with_range (0, 250, 1);
165 g_signal_connect (G_OBJECT (xthickness_spin), "value-changed", G_CALLBACK (spin_xthickness_cb), frame);
166 gtk_spin_button_set_value (GTK_SPIN_BUTTON (xthickness_spin), pad->left);
167 gtk_table_attach_defaults (GTK_TABLE (table), xthickness_spin, 1, 2, 0, 1);
169 /* Spin to control ythickness */
170 label = gtk_label_new ("ythickness: ");
171 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 1, 2);
173 ythickness_spin = gtk_spin_button_new_with_range (0, 250, 1);
174 g_signal_connect (G_OBJECT (ythickness_spin), "value-changed", G_CALLBACK (spin_ythickness_cb), frame);
175 gtk_spin_button_set_value (GTK_SPIN_BUTTON (ythickness_spin), pad->top);
176 gtk_table_attach_defaults (GTK_TABLE (table), ythickness_spin, 1, 2, 1, 2);
178 gtk_border_free (pad);
180 gtk_frame_get_label_align (GTK_FRAME (frame), &xalign, &yalign);
182 /* Spin to control label xalign */
183 label = gtk_label_new ("xalign: ");
184 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 2, 3);
186 xalign_spin = gtk_spin_button_new_with_range (0.0, 1.0, 0.1);
187 g_signal_connect (G_OBJECT (xalign_spin), "value-changed", G_CALLBACK (spin_xalign_cb), frame);
188 gtk_spin_button_set_value (GTK_SPIN_BUTTON (xalign_spin), xalign);
189 gtk_table_attach_defaults (GTK_TABLE (table), xalign_spin, 1, 2, 2, 3);
191 /* Spin to control label yalign */
192 label = gtk_label_new ("yalign: ");
193 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 3, 4);
195 yalign_spin = gtk_spin_button_new_with_range (0.0, 1.0, 0.1);
196 g_signal_connect (G_OBJECT (yalign_spin), "value-changed", G_CALLBACK (spin_yalign_cb), frame);
197 gtk_spin_button_set_value (GTK_SPIN_BUTTON (yalign_spin), yalign);
198 gtk_table_attach_defaults (GTK_TABLE (table), yalign_spin, 1, 2, 3, 4);
200 gtk_widget_show_all (window);