"Fossies" - the Fresh Open Source Software Archive 
"Fossies" - the Fresh Open Source Software Archive 
0.9.3.1_vs_1.0.0.A hint: This file contains one or more very long lines, so maybe it is better readable using the pure text view mode that shows the contents as wrapped lines within the browser window.
1 /* $Id: basics.c 4 2008-06-22 09:19:11Z rbock $ */ 2 /* GtkDatabox - An extension to the gtk+ library 3 * Copyright (C) 1998 - 2008 Dr. Roland Bock 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Lesser General Public License 7 * as published by the Free Software Foundation; either version 2.1 8 * of the License, or (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 #include <stdio.h> 20 21 #include <gtk/gtk.h> 22 #include <gtkdatabox.h> 23 #include <gtkdatabox_points.h> 24 #include <gtkdatabox_ruler.h> 25 #include <math.h> 26 27 #define POINTS 2000 28 #define STEPS 50 29 #define BARS 25 30 #define MARKER 10 31 32 /*---------------------------------------------------------------- 33 * databox basics 34 *----------------------------------------------------------------*/ 35 36 static void 37 create_basics (void) 38 { 39 GtkWidget *window = NULL; 40 GtkWidget *vbox; 41 GtkWidget *close_button; 42 GtkWidget *box; 43 GtkWidget *label; 44 GtkWidget *separator; 45 GtkWidget *table; 46 GtkDataboxGraph *graph; 47 gfloat *X; 48 gfloat *Y; 49 GdkRGBA color; 50 gint i; 51 52 /* We define some data */ 53 X = g_new0 (gfloat, POINTS); 54 Y = g_new0 (gfloat, POINTS); 55 56 for (i = 0; i < POINTS; i++) 57 { 58 X[i] = i; 59 Y[i] = sin (i * 4 * G_PI / POINTS); 60 } 61 62 window = gtk_window_new (GTK_WINDOW_TOPLEVEL); 63 gtk_widget_set_size_request (window, 500, 500); 64 65 g_signal_connect (G_OBJECT (window), "destroy", 66 G_CALLBACK (gtk_main_quit), NULL); 67 68 gtk_window_set_title (GTK_WINDOW (window), "GtkDatabox: Basics"); 69 gtk_container_set_border_width (GTK_CONTAINER (window), 0); 70 71 vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0); 72 gtk_container_add (GTK_CONTAINER (window), vbox); 73 74 label = 75 gtk_label_new 76 ("\nThe code for this example demonstrates\n the simplet way to use a GtkDatabox widget.\n\nUsage:\nDraw a selection with the left button pressed,\nThan click into the selection.\nUse the right mouse button to zoom out.\nShift+ right mouse button zooms to default.\n\nMouse scroll-wheel: \n*Holding Ctrl+ scrollwheel zooms in/out. \nScroll-wheel moves up/down. \n*Holding Shift+ scroll-wheel moves left/right in the plot."); 77 gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0); 78 separator = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL); 79 gtk_box_pack_start (GTK_BOX (vbox), separator, FALSE, FALSE, 0); 80 81 /* ----------------------------------------------------------------- 82 * This is all you need: 83 * ----------------------------------------------------------------- 84 */ 85 86 /* Create the GtkDatabox widget */ 87 gtk_databox_create_box_with_scrollbars_and_rulers (&box, &table, 88 TRUE, TRUE, TRUE, TRUE); 89 90 /* Put it somewhere */ 91 gtk_box_pack_start (GTK_BOX (vbox), table, TRUE, TRUE, 0); 92 93 /* Add your data data in some color */ 94 color.red = 0; 95 color.green = 0; 96 color.blue = 0; 97 color.alpha = 1; 98 99 graph = gtk_databox_points_new (POINTS, X, Y, &color, 1); 100 gtk_databox_graph_add (GTK_DATABOX (box), graph); 101 102 gtk_databox_set_total_limits (GTK_DATABOX (box), -1000., 5000., -10000., 23000.); 103 gtk_databox_auto_rescale (GTK_DATABOX (box), 0.05); 104 105 /* ----------------------------------------------------------------- 106 * Done :-) 107 * ----------------------------------------------------------------- 108 */ 109 110 separator = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL); 111 gtk_box_pack_start (GTK_BOX (vbox), separator, FALSE, TRUE, 0); 112 113 close_button = gtk_button_new_with_label ("close"); 114 g_signal_connect_swapped (G_OBJECT (close_button), "clicked", 115 G_CALLBACK (gtk_main_quit), G_OBJECT (box)); 116 gtk_box_pack_start (GTK_BOX (vbox), close_button, FALSE, FALSE, 0); 117 gtk_widget_set_can_default(close_button, TRUE); 118 gtk_widget_grab_default (close_button); 119 gtk_widget_grab_focus (close_button); 120 121 gtk_widget_show_all (window); 122 gdk_window_set_cursor (gtk_widget_get_window(box), gdk_cursor_new_for_display (gdk_display_get_default (), GDK_CROSS)); 123 } 124 125 gint 126 main (gint argc, char *argv[]) 127 { 128 gtk_init (&argc, &argv); 129 130 create_basics (); 131 gtk_main (); 132 133 return 0; 134 }