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/* $Id: enable_disable.c 4 2008-06-22 09:19:11Z rbock $ */
/* GtkDatabox - An extension to the gtk+ library
* Copyright (C) 1998 - 2008 Dr. Roland Bock
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <gtk/gtk.h>
#include <gtkdatabox.h>
#include <gtkdatabox_bars.h>
#include <math.h>
#define POINTS 50
/*----------------------------------------------------------------
* databox show_hide
*----------------------------------------------------------------*/
typedef void (*set_function) (GtkDatabox * box, gboolean enable);
typedef gboolean (*get_function) (GtkDatabox * box);
typedef struct
{
char *title;
set_function set;
get_function get;
GtkDatabox *box;
GtkEntry *entry;
}
EnableSet;
EnableSet enableSets[] = {
{"Selection Enabled",
gtk_databox_set_enable_selection,
gtk_databox_get_enable_selection,
NULL,
NULL},
{"Zoom Enabled",
gtk_databox_set_enable_zoom,
gtk_databox_get_enable_zoom,
NULL,
NULL},
};
gint noEnableSets = sizeof (enableSets) / sizeof (EnableSet);
static gboolean
update_enable (EnableSet * enableSet)
{
gboolean status = !(enableSet->get (enableSet->box));
enableSet->set (enableSet->box, status);
gtk_entry_set_text (GTK_ENTRY (enableSet->entry),
(status) ? "TRUE" : "FALSE");
return FALSE;
}
static void
create_show_hide (void)
{
GtkWidget *window = NULL;
GtkWidget *box1;
GtkWidget *box2;
GtkWidget *close_button;
GtkWidget *enable_box;
GtkWidget *box;
GtkWidget *table;
GtkWidget *label;
GtkWidget *separator;
GtkDataboxGraph *graph;
gfloat *X;
gfloat *Y;
GdkRGBA color;
gint i;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_widget_set_size_request (window, 600, 600);
g_signal_connect (G_OBJECT (window), "destroy",
G_CALLBACK (gtk_main_quit), NULL);
gtk_window_set_title (GTK_WINDOW (window),
"GtkDatabox: Enable/Disable Features");
gtk_container_set_border_width (GTK_CONTAINER (window), 0);
box1 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (window), box1);
label =
gtk_label_new
("Click on the buttons to enable/disable features.\n\nFor basic understanding: See basics :-)\n\n");
gtk_box_pack_start (GTK_BOX (box1), label, FALSE, FALSE, 0);
separator = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, FALSE, 0);
enable_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_box_pack_start (GTK_BOX (box1), enable_box, FALSE, FALSE, 0);
separator = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, FALSE, 0);
/* Create a GtkDatabox widget along with scrollbars and rulers */
gtk_databox_create_box_with_scrollbars_and_rulers (&box, &table,
TRUE, TRUE, TRUE, TRUE);
gtk_box_pack_start (GTK_BOX (box1), table, TRUE, TRUE, 0);
X = g_new0 (gfloat, POINTS);
Y = g_new0 (gfloat, POINTS);
for (i = 0; i < POINTS; i++)
{
X[i] = i;
Y[i] = 100. * sin (i * 2 * G_PI / POINTS);
}
color.red = 0;
color.green = 0;
color.blue = 1;
color.alpha = 1;
graph = gtk_databox_bars_new (POINTS, X, Y, &color, 1);
gtk_databox_graph_add (GTK_DATABOX (box), graph);
gtk_databox_auto_rescale (GTK_DATABOX (box), 0.05);
separator = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);
box2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
gtk_box_pack_end (GTK_BOX (box1), box2, FALSE, TRUE, 0);
close_button = gtk_button_new_with_label ("close");
g_signal_connect_swapped (G_OBJECT (close_button), "clicked",
G_CALLBACK (gtk_main_quit), G_OBJECT (box));
gtk_box_pack_start (GTK_BOX (box2), close_button, TRUE, TRUE, 0);
gtk_widget_set_can_default(close_button, TRUE);
for (i = 0; i < noEnableSets; ++i)
{
GtkWidget *vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
GtkWidget *label = gtk_label_new (enableSets[i].title);
GtkWidget *entry = gtk_entry_new ();
GtkWidget *button = gtk_button_new_with_label ("Change");
gtk_box_pack_start (GTK_BOX (enable_box), vbox, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (vbox), entry, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (vbox), button, TRUE, TRUE, 0);
gtk_editable_set_editable (GTK_EDITABLE (entry), FALSE);
g_signal_connect_swapped (button, "clicked",
G_CALLBACK (update_enable),
(gpointer) & (enableSets[i]));
enableSets[i].box = GTK_DATABOX (box);
enableSets[i].entry = GTK_ENTRY (entry);
update_enable (&enableSets[i]);
update_enable (&enableSets[i]);
}
gtk_widget_grab_default (close_button);
gtk_widget_show_all (window);
}
gint
main (gint argc, char *argv[])
{
gtk_init (&argc, &argv);
create_show_hide ();
gtk_main ();
return 0;
}