I'm trying to create a simple gui using glade and gtk in C. In the GUI I want to add a widget that plots data (a line plot and a histogram are all I want) (constantly updating) and I dont know what to use. I've seen that gnuplot is popular, but I have no idea how to use it in an application. I would like some suggestions and some instructions because I cannot find it.
here is some sample code that is what I am using as a base, just to give you an idea
update: I built gnuplot on my pc and now when I run the code it doesnt open a new window and seems to plot inside my window. the only problem is that the widget in my gtkbox container doesnt resize so it looks like a tiny white bar. Im assuming that it is working because i removed
gui.graph = gnuplot_init() ;
gnuplot_setstyle(gui.graph, "lines") ;
gnuplot_cmd(gui.graph, "set terminal x11 window \"%x\"", (int)gtk_socket_get_id (gui.socket));
gnuplot_plot_slope(gui.graph, 1.0, 0.0, "unity slope") ;and ran the commands on a seperate terminal and the white bar i mentioned pops up.
#include <gtk/gtk.h>
#include <gtk/gtkx.h>
#include "variables.h"
#include "gnuplot_i.h"
struct test tv;
struct GUI gui;
// Functions
void GUISetup();
int main(int argc, char *argv[])
{
gtk_init(&argc, &argv);
gui.builder = gtk_builder_new_from_file("glade/window_main.glade");
gui.window = GTK_WIDGET(gtk_builder_get_object(gui.builder, "window_main"));
gtk_builder_connect_signals(gui.builder, NULL);
GUISetup();
g_object_unref(gui.builder);
// start fullbuilderscreen
gtk_window_fullscreen(GTK_WINDOW(gui.window));
gtk_widget_show(gui.window);
gtk_main();
return 0;
}
void GUISetup(){
gui.socket = gtk_socket_new ();
gtk_container_add (GTK_CONTAINER (gui.MainContainer), gui.socket);
//gtk_widget_show (gui.socket);
//gtk_widget_realize (gui.socket);
gui.graph = gnuplot_init() ;
gnuplot_setstyle(gui.graph, "lines") ;
gnuplot_cmd(gui.graph, "set terminal x11 window \"%x\"", (int)gtk_socket_get_id (gui.socket));
gnuplot_plot_slope(gui.graph, 1.0, 0.0, "unity slope") ;
}when I make I get this:
gcc -c -g -O0 -Wall -pthread -pipe src/main.c `pkg-config --cflags --libs gtk+-3.0` -o main.o
src/main.c: In function ‘GUISetup’:
src/main.c:66:86: warning: passing argument 1 of ‘gtk_socket_get_id’ from incompatible pointer type [-Wincompatible-pointer-types]
ui.graph, "set terminal x11 window \"%x\"", (int)gtk_socket_get_id (gui.socket));
^~~
In file included from /usr/include/gtk-3.0/gtk/gtkx.h:29:0,
from src/main.c:25:
/usr/include/gtk-3.0/gtk/gtksocket.h:81:12: note: expected ‘GtkSocket * {aka struct _GtkSocket *}’ but argument is of type ‘GtkWidget * {aka struct _GtkWidget *}’
Window gtk_socket_get_id (GtkSocket *socket_);
^~~~~~~~~~~~~~~~~
gcc -o interface main.o gnuplot_i.o -pthread `pkg-config --cflags --libs gtk+-3.0` -export-dynamici tested the code manually and got the same results as found here, so I am going to try building gnuplot and altering the config files. Is there any alternative to the solution found in that post?