#!/usr/bin/gawk -f # # Demonstration on how to create a GTK GUI using psalm with Gnu AWK. # # Run as follows using socat: # socat EXEC:./psalm EXEC:./demo.awk # # Or with dpipe from VDE2: # dpipe ./psalm = ./demo.awk # # Or using pipexec: # pipexec [ A ./psalm ] [ B ./demo.awk ] "{A:1>B:0}" "{B:1>A:0}" # # Or native Linux: # : | { ./psalm | ./demo.awk; } > /dev/fd/0 # # November 18, 2022 by Peter van Eerten. #------------------------------------------------ function comm(str) { print str fflush() getline return $0 } BEGIN{ # Send definitions first comm("DEF libgtk-3.so.0 void gtk_init int int") comm("DEF libgtk-3.so.0 long gtk_window_new int") comm("DEF libgtk-3.so.0 void gtk_window_set_title int char*") comm("DEF libgtk-3.so.0 void gtk_widget_set_size_request long int int") comm("DEF libgtk-3.so.0 void gtk_window_set_position long int") comm("DEF libgtk-3.so.0 long gtk_table_new int int int") comm("DEF libgtk-3.so.0 void gtk_container_add long long") comm("DEF libgtk-3.so.0 long gtk_button_new_with_label char*") comm("DEF libgtk-3.so.0 long gtk_entry_new void") comm("DEF libgtk-3.so.0 char* gtk_entry_get_text long") comm("DEF libgtk-3.so.0 long gtk_label_new void") comm("DEF libgtk-3.so.0 void gtk_label_set_text long char*") comm("DEF libgtk-3.so.0 void gtk_table_attach_defaults long long int int int int") comm("DEF libgtk-3.so.0 void gtk_widget_show_all int") comm("DEF libgobject-2.0.so.0 long g_signal_connect_data int char* address void* void* int") comm("DEF libgtk-3.so.0 void gtk_main_iteration void") # Design GUI comm("EXE gtk_init NULL NULL") win = comm("EXE gtk_window_new 0") comm("EXE gtk_window_set_title " win " \"This is a title\"") comm("EXE gtk_window_set_position " win " 1") table = comm("EXE gtk_table_new 30 30 1") comm("EXE gtk_container_add " win " " table) but1 = comm("EXE gtk_button_new_with_label Exit") comm("EXE gtk_table_attach_defaults " table " " but1 " 17 28 20 25") but2 = comm("EXE gtk_button_new_with_label \"Print text\"") comm("EXE gtk_table_attach_defaults " table " " but2 " 2 13 20 25") entry = comm("EXE gtk_entry_new") comm("EXE gtk_table_attach_defaults " table " " entry " 2 28 5 10") label = comm("EXE gtk_label_new") comm("EXE gtk_table_attach_defaults " table " " label " 2 28 12 17") comm("EXE gtk_label_set_text " label " \"<Text appears here>\"") comm("EXE gtk_widget_show_all " win) # Connect signals comm("EXE g_signal_connect_data " win " delete-event callback NULL NULL 0") comm("EXE g_signal_connect_data " but1 " clicked callback NULL NULL 0") comm("EXE g_signal_connect_data " but2 " clicked callback NULL NULL 0") # Mainloop do { comm("EXE gtk_main_iteration") cb = comm("CALLBACK 1") if (cb == but2) { txt = comm("EXE gtk_entry_get_text " entry) comm("EXE gtk_label_set_text " label " "txt) } } while(cb != but1 && cb != win) comm("EXIT") }
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