[769eba]: examples / addremove.c Maximize Restore History

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/* $Id: addremove.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 <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <gtk/gtk.h>
#include <gtkdatabox.h>
#include <gtkdatabox_points.h>
#include <math.h>
#define POINTS 200
GtkDataboxGraph **graphs;
/*----------------------------------------------------------------
* databox addremove
*----------------------------------------------------------------*/
void
add_data (GtkDatabox * box, gint index)
{
GdkColor color;
gint add_index;
color.red = 32768 + 32767 * (index + 1) / 10;
color.green = 65535 - 32768 * index / 10;
color.blue = 65535;
gtk_databox_graph_set_color (graphs[index], &color);
add_index = gtk_databox_graph_add (GTK_DATABOX (box), graphs[index]);
g_print ("Added graph has index: %d\n", add_index);
}
static gboolean
addremove_func (GtkDatabox * box)
{
static gboolean remove = TRUE;
gfloat min_x, max_x;
gfloat min_y, max_y;
static gint index;
static gint hide;
if (remove)
{
index = (int) (10. * rand () / (RAND_MAX + 1.0));
hide = (int) (2. * rand () / (RAND_MAX + 1.0));
if (!hide)
{
g_print ("removing %d\n", index);
gtk_databox_graph_remove (box, graphs[index]);
g_print ("Removed: %d\n", index);
}
else
{
g_print ("hiding %d\n", index);
gtk_databox_graph_set_hide (graphs[index], TRUE);
}
}
else
{
if (!hide)
{
g_print ("Adding graph %d\n", index);
add_data (box, index);
}
else
{
g_print ("Showing graph %d\n", index);
gtk_databox_graph_set_hide (graphs[index], FALSE);
}
}
remove = !remove;
gtk_databox_auto_rescale (box, 0.05);
gtk_databox_calculate_extrema (box, &min_x, &max_x, &min_y, &max_y);
g_print ("minX: %10f, minY:%10f, maxX:%10f, maxY:%10f\n", min_x, min_y,
max_x, max_y);
gtk_widget_queue_draw (GTK_WIDGET(box));
return (TRUE);
}
static void
create_addremove (void)
{
GtkWidget *window = NULL;
GtkWidget *box1;
GtkWidget *box2;
GtkWidget *close_button;
GtkWidget *box;
GtkWidget *table;
GtkWidget *label;
GtkWidget *separator;
GtkDataboxGraph *graph;
GdkColor color;
gfloat *X;
gfloat *Y;
gint i, j;
graphs = g_new0 (GtkDataboxGraph *, 10);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_widget_set_size_request (window, 400, 400);
g_signal_connect (G_OBJECT (window), "destroy",
G_CALLBACK (gtk_main_quit), NULL);
gtk_window_set_title (GTK_WINDOW (window), "GtkDatabox: Basics");
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
("When you click on the \"Add/Remove\" button, a graph will be removed.\nWhen you click again, it is added again.\n\n(This is just for testing add and remove functions)");
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 = 16383;
color.green = 16383;
color.blue = 16383;
gtk_widget_modify_bg (box, GTK_STATE_NORMAL, &color);
X = g_new0 (gfloat, POINTS);
for (i = 0; i < POINTS; i++)
{
X[i] = i * 5;
}
for (i = 0; i < 10; i++)
{
Y = g_new0 (gfloat, POINTS);
for (j = 0; j < POINTS; j++)
{
Y[j] = i * 100.0 * sin (i * j / 50.);
}
graphs[i] = gtk_databox_points_new (POINTS, X, Y, &color, 1);
add_data (GTK_DATABOX (box), i);
}
X = g_new0 (gfloat, 4);
Y = g_new0 (gfloat, 4);
X[0] = -100.;
Y[0] = -1100.;
X[1] = -100.;
Y[1] = +1100.;
X[2] = +1100.;
Y[2] = -1100.;
X[3] = +1100.;
Y[3] = +1100.;
color.red = 65535;
color.green = 0;
color.blue = 0;
graph = gtk_databox_points_new (4, X, Y, &color, 3);
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 ("Add/Remove");
g_signal_connect_swapped (G_OBJECT (close_button), "clicked",
G_CALLBACK (addremove_func), G_OBJECT (box));
gtk_box_pack_start (GTK_BOX (box2), close_button, TRUE, 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_addremove ();
gtk_main ();
return 0;
}