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, see <http://www.gnu.org/licenses/>.
22 spin_ythickness_cb (GtkSpinButton *spin, gpointer user_data)
24 GtkWidget *frame = user_data;
25 GtkCssProvider *provider;
26 GtkStyleContext *context;
30 context = gtk_widget_get_style_context (frame);
31 provider = g_object_get_data (G_OBJECT (frame), "provider");
34 provider = gtk_css_provider_new ();
35 g_object_set_data (G_OBJECT (frame), "provider", provider);
36 gtk_style_context_add_provider (context,
37 GTK_STYLE_PROVIDER (provider),
38 GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
41 gtk_style_context_get_padding (context, GTK_STATE_FLAG_NORMAL, &pad);
43 data = g_strdup_printf ("GtkFrame { padding: %d %d }",
45 (gint)gtk_spin_button_get_value (spin));
47 gtk_css_provider_load_from_data (provider, data, -1, NULL);
50 gtk_style_context_invalidate (context);
51 gtk_widget_queue_resize (frame);
55 spin_xthickness_cb (GtkSpinButton *spin, gpointer user_data)
57 GtkWidget *frame = user_data;
58 GtkCssProvider *provider;
59 GtkStyleContext *context;
63 context = gtk_widget_get_style_context (frame);
64 provider = g_object_get_data (G_OBJECT (frame), "provider");
67 provider = gtk_css_provider_new ();
68 g_object_set_data (G_OBJECT (frame), "provider", provider);
69 gtk_style_context_add_provider (context,
70 GTK_STYLE_PROVIDER (provider),
71 GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
74 gtk_style_context_get_padding (context, GTK_STATE_FLAG_NORMAL, &pad);
76 data = g_strdup_printf ("GtkFrame { padding: %d %d }",
77 (gint)gtk_spin_button_get_value (spin),
80 gtk_css_provider_load_from_data (provider, data, -1, NULL);
83 gtk_style_context_invalidate (context);
84 gtk_widget_queue_resize (frame);
87 /* Function to normalize rounding errors in FP arithmetic to
93 double_normalize (gdouble n)
95 if (fabs (1.0 - n) < EPSILON)
104 spin_xalign_cb (GtkSpinButton *spin, GtkFrame *frame)
109 xalign = double_normalize (gtk_spin_button_get_value (spin));
110 gtk_frame_get_label_align (frame, NULL, &yalign);
111 gtk_frame_set_label_align (frame, xalign, yalign);
115 spin_yalign_cb (GtkSpinButton *spin, GtkFrame *frame)
120 yalign = double_normalize (gtk_spin_button_get_value (spin));
121 gtk_frame_get_label_align (frame, &xalign, NULL);
122 gtk_frame_set_label_align (frame, xalign, yalign);
125 int main (int argc, char **argv)
127 GtkStyleContext *context;
129 GtkWidget *window, *frame, *xthickness_spin, *ythickness_spin, *vbox;
130 GtkWidget *xalign_spin, *yalign_spin, *button, *grid, *label;
131 gfloat xalign, yalign;
133 gtk_init (&argc, &argv);
135 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
136 gtk_container_set_border_width (GTK_CONTAINER (window), 5);
137 gtk_window_set_default_size (GTK_WINDOW (window), 300, 300);
139 g_signal_connect (G_OBJECT (window), "delete-event", gtk_main_quit, NULL);
141 vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
142 gtk_container_add (GTK_CONTAINER (window), vbox);
144 frame = gtk_frame_new ("Testing");
145 gtk_box_pack_start (GTK_BOX (vbox), frame, TRUE, TRUE, 0);
147 button = gtk_button_new_with_label ("Hello!");
148 gtk_container_add (GTK_CONTAINER (frame), button);
150 grid = gtk_grid_new ();
151 gtk_box_pack_start (GTK_BOX (vbox), grid, FALSE, FALSE, 0);
153 context = gtk_widget_get_style_context (frame);
154 gtk_style_context_get_padding (context, GTK_STATE_FLAG_NORMAL, &pad);
156 /* Spin to control xthickness */
157 label = gtk_label_new ("xthickness: ");
158 gtk_grid_attach (GTK_GRID (grid), label, 0, 0, 1, 1);
160 xthickness_spin = gtk_spin_button_new_with_range (0, 250, 1);
161 g_signal_connect (G_OBJECT (xthickness_spin), "value-changed", G_CALLBACK (spin_xthickness_cb), frame);
162 gtk_spin_button_set_value (GTK_SPIN_BUTTON (xthickness_spin), pad.left);
163 gtk_grid_attach (GTK_GRID (grid), xthickness_spin, 1, 0, 1, 1);
165 /* Spin to control ythickness */
166 label = gtk_label_new ("ythickness: ");
167 gtk_grid_attach (GTK_GRID (grid), label, 0, 1, 1, 1);
169 ythickness_spin = gtk_spin_button_new_with_range (0, 250, 1);
170 g_signal_connect (G_OBJECT (ythickness_spin), "value-changed", G_CALLBACK (spin_ythickness_cb), frame);
171 gtk_spin_button_set_value (GTK_SPIN_BUTTON (ythickness_spin), pad.top);
172 gtk_grid_attach (GTK_GRID (grid), ythickness_spin, 1, 1, 1, 1);
174 gtk_frame_get_label_align (GTK_FRAME (frame), &xalign, &yalign);
176 /* Spin to control label xalign */
177 label = gtk_label_new ("xalign: ");
178 gtk_grid_attach (GTK_GRID (grid), label, 0, 2, 1, 1);
180 xalign_spin = gtk_spin_button_new_with_range (0.0, 1.0, 0.1);
181 g_signal_connect (G_OBJECT (xalign_spin), "value-changed", G_CALLBACK (spin_xalign_cb), frame);
182 gtk_spin_button_set_value (GTK_SPIN_BUTTON (xalign_spin), xalign);
183 gtk_grid_attach (GTK_GRID (grid), xalign_spin, 1, 2, 1, 1);
185 /* Spin to control label yalign */
186 label = gtk_label_new ("yalign: ");
187 gtk_grid_attach (GTK_GRID (grid), label, 0, 3, 1, 1);
189 yalign_spin = gtk_spin_button_new_with_range (0.0, 1.0, 0.1);
190 g_signal_connect (G_OBJECT (yalign_spin), "value-changed", G_CALLBACK (spin_yalign_cb), frame);
191 gtk_spin_button_set_value (GTK_SPIN_BUTTON (yalign_spin), yalign);
192 gtk_grid_attach (GTK_GRID (grid), yalign_spin, 1, 3, 1, 1);
194 gtk_widget_show_all (window);