/* $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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 (GTK_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_vbox_new (FALSE, 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_hseparator_new (); 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_hseparator_new (); gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0); box2 = gtk_vbox_new (FALSE, 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 (GTK_OBJECT (close_button), "clicked", G_CALLBACK (addremove_func), GTK_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 (GTK_OBJECT (close_button), "clicked", G_CALLBACK (gtk_main_quit), GTK_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; }