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/* $Id: grid.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_points.h>
#include <gtkdatabox_grid.h>
#include <math.h>
#define POINTS 2000
/*----------------------------------------------------------------
* databox grid
*----------------------------------------------------------------*/
static void
create_grid (void)
{
GtkWidget *window = NULL;
GtkWidget *box1;
GtkWidget *box2;
GtkWidget *close_button;
GtkWidget *box;
GtkWidget *label;
GtkWidget *table;
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, 500, 500);
g_signal_connect (G_OBJECT (window), "destroy",
G_CALLBACK (gtk_main_quit), NULL);
gtk_window_set_title (GTK_WINDOW (window),
"GtkDatabox: Double Grid Example");
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
("This is an example of two grids\nLove it or hate it.\nI love it...\n\nFor basic understanding see basics :-)");
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);
/* 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);
color.red = 0.6;
color.green = 0.6;
color.blue = 0.6;
color.alpha = 1;
gtk_widget_override_background_color (box, GTK_STATE_FLAG_NORMAL, &color);
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 = 1;
color.blue = 0;
color.alpha = 1;
graph = gtk_databox_points_new (POINTS, X, Y, &color, 3);
gtk_databox_graph_add (GTK_DATABOX (box), graph);
Y = g_new0 (gfloat, POINTS);
for (i = 0; i < POINTS; i++)
{
Y[i] = 100. * cos (i * 2 * G_PI / POINTS);
}
color.red = 1;
color.green = 0;
color.blue = 0;
color.alpha = 1;
graph = gtk_databox_points_new (POINTS, X, Y, &color, 3);
gtk_databox_graph_add (GTK_DATABOX (box), graph);
/* Here we start with the first grid */
color.red = 0;
color.green = 0;
color.blue = 1;
color.alpha = 1;
graph = gtk_databox_grid_new (7, 7, &color, 2);
gtk_databox_graph_add (GTK_DATABOX (box), graph);
color.red = 0.9;
color.green = 0;
color.blue = 0;
color.alpha = 1;
graph = gtk_databox_grid_new (15, 15, &color, 2);
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);
gtk_widget_grab_default (close_button);
gtk_widget_show_all (window);
}
gint
main (gint argc, char *argv[])
{
gtk_init (&argc, &argv);
create_grid ();
gtk_main ();
return 0;
}