#!/usr/bin/gawk -f
#
# Demonstration on how to use the GTK-server with Gnu AWK by UDP.
# Tested with Gnu AWK 3.1.3 on Slackware Linux 10.
#
# July 28, 2004 by Peter van Eerten.
# Revised for GTK-server 1.2 October 8, 2004 by PvE.
# Revised for GTK-server 1.3 December 5, 2004 by PvE.

function pause(seconds, l_now)
{
l_now = systime()
while (systime() != l_now + seconds){}
}
#
# Main program
#
BEGIN{
system("gtk-server -udp=localhost:50000 &")
# Wait for the server to initialize
pause(1)
# Setup TCP socket to server
GTK = "/inet/udp/0/localhost/50000"
# Now define the GUI
print "gtk_init NULL NULL" |& GTK; GTK |& getline TMP
print "gtk_window_new 0" |& GTK; GTK |& getline WINDOW
print "gtk_window_set_title " WINDOW " \"Using the UDP gtk-server\"" |& GTK; GTK |& getline TMP
print "gtk_window_set_default_size " WINDOW " 100 100" |& GTK; GTK |& getline TMP
print "gtk_window_set_position " WINDOW " 1" |& GTK; GTK |& getline TMP
print "gtk_table_new 30 30 1" |& GTK; GTK |& getline TABLE
print "gtk_container_add " WINDOW " " TABLE |& GTK; GTK |& getline TMP 
print "gtk_button_new_with_label Exit" |& GTK; GTK |& getline BUTTON1
print "gtk_table_attach_defaults " TABLE " " BUTTON1 " 17 28 20 25" |& GTK; GTK |& getline TMP 
print "gtk_button_new_with_label \"Print text\"" |& GTK; GTK |& getline BUTTON2
print "gtk_table_attach_defaults " TABLE " " BUTTON2 " 2 13 20 25" |& GTK; GTK |& getline TMP 
print "gtk_entry_new" |& GTK; GTK |& getline ENTRY
print "gtk_table_attach_defaults " TABLE " " ENTRY " 2 28 5 15" |& GTK; GTK |& getline TMP 
print "gtk_widget_show_all " WINDOW |& GTK; GTK |& getline TMP

do {
    print "gtk_server_callback WAIT" |& GTK; GTK |& getline EVENT
    if (EVENT == BUTTON2){
	print "gtk_entry_get_text " ENTRY |& GTK; GTK |& getline TMP
	print "This is the contents: " TMP
    }
} while (EVENT != BUTTON1)

print "gtk_server_exit" |& GTK
close(GTK)
}