# Grid (C)

Monica Kochofar
monicakochofar@gmail.com 2012
Pack widgets in rows and columns
Rafael Ferreira
rafael.f.f1@gmail.com 2013

# Grid

A button widget connected to a progress bar.

#include <gtk/gtk.h>

/*Signal handler for the "clicked" signal of the Button. Each click generates a progress bar pulse*/ static void on_button_click (GtkButton *button, gpointer user_data) { GtkProgressBar *progress_bar = user_data; gtk_progress_bar_pulse (progress_bar); }

static void activate (GtkApplication *app, gpointer user_data) { GtkWidget *grid; GtkWidget *window; GtkWidget *button; GtkWidget *progress_bar;

/*Create the window and set a title*/ window = gtk_application_window_new (app); gtk_window_set_title (GTK_WINDOW (window), "Grid Example");

/*Create a button with a label*/ button = gtk_button_new_with_label ("Button");

/*Create the progress bar*/ progress_bar = gtk_progress_bar_new ();

/*Create a grid and attach the button and progress bar accordingly*/ grid = gtk_grid_new (); gtk_grid_attach (GTK_GRID (grid), button, 1, 1, 1, 1); gtk_grid_attach_next_to (GTK_GRID (grid), progress_bar, button, GTK_POS_BOTTOM, 1, 1);

/*Connecting the clicked signal to the callback function*/ g_signal_connect (GTK_BUTTON (button), "clicked", G_CALLBACK (on_button_click), progress_bar);

gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (grid));

gtk_widget_show_all (window); }

int main (int argc, char **argv) { GtkApplication *app; int status;

app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE); g_signal_connect (app, "activate", G_CALLBACK (activate), NULL); status = g_application_run (G_APPLICATION (app), argc, argv); g_object_unref (app);

return status; }

In this sample we used the following:

GtkApplication

GtkWindow

GtkProgressBar

GtkButton

GtkGrid