gtk_popover3.c

/*
 * Build:
 * gcc $(pkg-config --cflags gtk+-3.0) popover_sample.c -o popover_sample $(pkg-config --libs gtk+-3.0)
 */

#include <gtk/gtk.h>

static void btnClicked(GtkWidget *widget, gpointer label){
	const gchar *lbl = gtk_label_get_text(GTK_LABEL(label));
	g_print("Button clicked, %s\n", lbl);
}

int main (int argc, char *argv[])
{
  GtkWidget *window;
  GtkWidget *button, *popover, *vbox, *btn, *lbl;

  gtk_init (&argc, &argv);

  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_widget_realize (window);

  gtk_window_set_position (GTK_WINDOW (window), GTK_WIN_POS_CENTER);
  gtk_container_set_border_width (GTK_CONTAINER (window), 5);
  gtk_window_set_default_size (GTK_WINDOW (window), 640, 480);

  button = gtk_menu_button_new ();
  gtk_button_set_image (
    GTK_BUTTON (button), 
    gtk_image_new_from_icon_name ("open-menu-symbolic", 
    GTK_ICON_SIZE_BUTTON)
  );
  gtk_widget_set_valign (button, GTK_ALIGN_START);
  gtk_widget_set_halign (button, GTK_ALIGN_START);
  gtk_container_add (GTK_CONTAINER (window), button);

  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);

  lbl = gtk_label_new("แฟ้มข้อมูลหลัก");
  gtk_label_set_xalign(GTK_LABEL(lbl), 0.0);
  btn = gtk_button_new();
  gtk_container_add(GTK_CONTAINER(btn), lbl);
  gtk_button_set_relief(GTK_BUTTON(btn), GTK_RELIEF_NONE);
  gtk_box_pack_start(GTK_BOX(vbox), btn, FALSE, FALSE, 0);
  g_signal_connect(G_OBJECT(btn), "clicked", G_CALLBACK(btnClicked), lbl);

  lbl = gtk_label_new("ทำรายการ");
  gtk_label_set_xalign(GTK_LABEL(lbl), 0.0);
  btn = gtk_button_new();
  gtk_container_add(GTK_CONTAINER(btn), lbl);
  gtk_button_set_relief(GTK_BUTTON(btn), GTK_RELIEF_NONE);
  gtk_box_pack_start(GTK_BOX(vbox), btn, FALSE, FALSE, 0);
  g_signal_connect(G_OBJECT(btn), "clicked", G_CALLBACK(btnClicked), lbl);

  lbl = gtk_label_new("รายงาน");
  gtk_label_set_xalign(GTK_LABEL(lbl), 0.0);
  btn = gtk_button_new();
  gtk_container_add(GTK_CONTAINER(btn), lbl);
  gtk_button_set_relief(GTK_BUTTON(btn), GTK_RELIEF_NONE);
  gtk_box_pack_start(GTK_BOX(vbox), btn, FALSE, FALSE, 0);
  g_signal_connect(G_OBJECT(btn), "clicked", G_CALLBACK(btnClicked), lbl);

  lbl = gtk_label_new("จัดการระบบ");
  gtk_label_set_xalign(GTK_LABEL(lbl), 0.0);
  btn = gtk_button_new();
  gtk_container_add(GTK_CONTAINER(btn), lbl);
  gtk_button_set_relief(GTK_BUTTON(btn), GTK_RELIEF_NONE);
  gtk_box_pack_start(GTK_BOX(vbox), btn, FALSE, FALSE, 0);
  g_signal_connect(G_OBJECT(btn), "clicked", G_CALLBACK(btnClicked), lbl);

  lbl = gtk_label_new("ออกจากโปรแกรม");
  gtk_label_set_xalign(GTK_LABEL(lbl), 0.0);
  btn = gtk_button_new();
  gtk_container_add(GTK_CONTAINER(btn), lbl);
  gtk_button_set_relief(GTK_BUTTON(btn), GTK_RELIEF_NONE);
  gtk_box_pack_start(GTK_BOX(vbox), btn, FALSE, FALSE, 0);
  g_signal_connect(G_OBJECT(btn), "clicked", G_CALLBACK(btnClicked), lbl);

  popover = gtk_popover_new (button);
  gtk_container_add (GTK_CONTAINER (popover), vbox);
  gtk_menu_button_set_popover (GTK_MENU_BUTTON (button), popover);
  gtk_widget_show_all (popover);

  g_signal_connect (G_OBJECT (window), "destroy", G_CALLBACK (gtk_main_quit), NULL);

  gtk_widget_show_all (window);

  gtk_main ();

  return 0;
}