forked from AuroraMiddleware/gtk
206 lines
6.7 KiB
C
206 lines
6.7 KiB
C
/* testframe.c
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* Copyright (C) 2007 Xan López <xan@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <gtk/gtk.h>
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#include <math.h>
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static void
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spin_ythickness_cb (GtkSpinButton *spin, gpointer user_data)
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{
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GtkWidget *frame = user_data;
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GtkCssProvider *provider;
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GtkStyleContext *context;
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gchar *data;
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GtkBorder *pad;
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context = gtk_widget_get_style_context (frame);
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provider = g_object_get_data (G_OBJECT (frame), "provider");
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if (provider == NULL)
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{
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provider = gtk_css_provider_new ();
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g_object_set_data (G_OBJECT (frame), "provider", provider);
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gtk_style_context_add_provider (context,
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GTK_STYLE_PROVIDER (provider),
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GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
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}
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gtk_style_context_get (context, 0, "padding", &pad, NULL);
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data = g_strdup_printf ("GtkFrame { padding: %d %d }",
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pad->top,
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(gint)gtk_spin_button_get_value (spin));
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gtk_css_provider_load_from_data (provider, data, -1, NULL);
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g_free (data);
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gtk_border_free (pad);
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gtk_style_context_invalidate (context);
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gtk_widget_queue_resize (frame);
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}
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static void
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spin_xthickness_cb (GtkSpinButton *spin, gpointer user_data)
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{
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GtkWidget *frame = user_data;
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GtkCssProvider *provider;
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GtkStyleContext *context;
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gchar *data;
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GtkBorder *pad;
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context = gtk_widget_get_style_context (frame);
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provider = g_object_get_data (G_OBJECT (frame), "provider");
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if (provider == NULL)
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{
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provider = gtk_css_provider_new ();
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g_object_set_data (G_OBJECT (frame), "provider", provider);
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gtk_style_context_add_provider (context,
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GTK_STYLE_PROVIDER (provider),
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GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
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}
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gtk_style_context_get (context, 0, "padding", &pad, NULL);
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data = g_strdup_printf ("GtkFrame { padding: %d %d }",
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(gint)gtk_spin_button_get_value (spin),
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pad->left);
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gtk_css_provider_load_from_data (provider, data, -1, NULL);
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g_free (data);
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gtk_border_free (pad);
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gtk_style_context_invalidate (context);
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gtk_widget_queue_resize (frame);
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}
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/* Function to normalize rounding errors in FP arithmetic to
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our desired limits */
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#define EPSILON 1e-10
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static gdouble
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double_normalize (gdouble n)
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{
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if (fabs (1.0 - n) < EPSILON)
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n = 1.0;
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else if (n < EPSILON)
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n = 0.0;
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return n;
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}
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static void
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spin_xalign_cb (GtkSpinButton *spin, GtkFrame *frame)
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{
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gdouble xalign;
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gfloat yalign;
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xalign = double_normalize (gtk_spin_button_get_value (spin));
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gtk_frame_get_label_align (frame, NULL, &yalign);
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gtk_frame_set_label_align (frame, xalign, yalign);
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}
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static void
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spin_yalign_cb (GtkSpinButton *spin, GtkFrame *frame)
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{
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gdouble yalign;
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gfloat xalign;
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yalign = double_normalize (gtk_spin_button_get_value (spin));
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gtk_frame_get_label_align (frame, &xalign, NULL);
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gtk_frame_set_label_align (frame, xalign, yalign);
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}
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int main (int argc, char **argv)
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{
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GtkStyleContext *context;
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GtkBorder *pad;
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GtkWidget *window, *frame, *xthickness_spin, *ythickness_spin, *vbox;
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GtkWidget *xalign_spin, *yalign_spin, *button, *table, *label;
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gfloat xalign, yalign;
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gtk_init (&argc, &argv);
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_container_set_border_width (GTK_CONTAINER (window), 5);
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gtk_window_set_default_size (GTK_WINDOW (window), 300, 300);
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g_signal_connect (G_OBJECT (window), "delete-event", gtk_main_quit, NULL);
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
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gtk_container_add (GTK_CONTAINER (window), vbox);
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frame = gtk_frame_new ("Testing");
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gtk_box_pack_start (GTK_BOX (vbox), frame, TRUE, TRUE, 0);
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button = gtk_button_new_with_label ("Hello!");
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gtk_container_add (GTK_CONTAINER (frame), button);
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table = gtk_table_new (4, 2, FALSE);
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gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
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context = gtk_widget_get_style_context (frame);
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gtk_style_context_get (context, 0, "padding", &pad, NULL);
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/* Spin to control xthickness */
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label = gtk_label_new ("xthickness: ");
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gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 0, 1);
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xthickness_spin = gtk_spin_button_new_with_range (0, 250, 1);
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g_signal_connect (G_OBJECT (xthickness_spin), "value-changed", G_CALLBACK (spin_xthickness_cb), frame);
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gtk_spin_button_set_value (GTK_SPIN_BUTTON (xthickness_spin), pad->left);
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gtk_table_attach_defaults (GTK_TABLE (table), xthickness_spin, 1, 2, 0, 1);
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/* Spin to control ythickness */
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label = gtk_label_new ("ythickness: ");
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gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 1, 2);
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ythickness_spin = gtk_spin_button_new_with_range (0, 250, 1);
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g_signal_connect (G_OBJECT (ythickness_spin), "value-changed", G_CALLBACK (spin_ythickness_cb), frame);
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gtk_spin_button_set_value (GTK_SPIN_BUTTON (ythickness_spin), pad->top);
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gtk_table_attach_defaults (GTK_TABLE (table), ythickness_spin, 1, 2, 1, 2);
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gtk_border_free (pad);
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gtk_frame_get_label_align (GTK_FRAME (frame), &xalign, &yalign);
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/* Spin to control label xalign */
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label = gtk_label_new ("xalign: ");
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gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 2, 3);
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xalign_spin = gtk_spin_button_new_with_range (0.0, 1.0, 0.1);
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g_signal_connect (G_OBJECT (xalign_spin), "value-changed", G_CALLBACK (spin_xalign_cb), frame);
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gtk_spin_button_set_value (GTK_SPIN_BUTTON (xalign_spin), xalign);
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gtk_table_attach_defaults (GTK_TABLE (table), xalign_spin, 1, 2, 2, 3);
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/* Spin to control label yalign */
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label = gtk_label_new ("yalign: ");
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gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 3, 4);
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yalign_spin = gtk_spin_button_new_with_range (0.0, 1.0, 0.1);
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g_signal_connect (G_OBJECT (yalign_spin), "value-changed", G_CALLBACK (spin_yalign_cb), frame);
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gtk_spin_button_set_value (GTK_SPIN_BUTTON (yalign_spin), yalign);
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gtk_table_attach_defaults (GTK_TABLE (table), yalign_spin, 1, 2, 3, 4);
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gtk_widget_show_all (window);
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gtk_main ();
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return 0;
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}
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