Day: December 8, 2014

Maybe these are all the buttons I need for daily operations.

#include <gtk/gtk.h>

struct mybutton {
 char name[100];
 int  left_attach;
 int  right_attach;
 int  top_attach;
 int  bottom_attach;
};

void callback( GtkWidget *widget, gpointer   data ) {
    g_print ("%s was pressed\n", (char *) data);
}

gint delete_event( GtkWidget *widget, GdkEvent *event, gpointer data ) {
    gtk_main_quit ();
    return(FALSE);
}

int main( int   argc, char *argv[] ) {

    int nx=20, ny=10;
    int nbutton = 25;
    struct mybutton mybuttons[100] = {
     {"CW",         0, 1, 0, 1},
     {"CW-REV",     0, 1, 1, 2},
     {"20 wpm",     1, 2, 0, 1},
     {"25 wpm",     1, 2, 1, 2},
     {"30 wpm",     1, 2, 2, 3},
     {"35 wpm",     1, 2, 3, 4},
     {"40 wpm",     1, 2, 4, 5},
     {"TX OFF",     3, 4, 0, 1},
     {"BK-IN",      3, 4, 1, 2},
     {"FBK-IN",     3, 4, 2, 3},
     {"IF FIL1",    5, 6, 0, 1},
     {"IF FIL2",    5, 6, 1, 2},
     {"IF FIL3",    5, 6, 2, 3},
     {"OFF",        6, 7, 0, 1},
     {"PRE-AMP  1", 6, 7, 1, 2},
     {"PRE-AMP  2", 6, 7, 2, 3},
     {"ATT",        6, 7, 3, 4},
     {" 7.003kHz",  8, 9, 0, 1},
     {" 7.026kHz",  8, 9, 1, 2},
     {"10.118kHz",  8, 9, 2, 3},
     {"14.058kHz",  8, 9, 3, 4},
     {"18.085kHz",  8, 9, 4, 5},
     {"21.058kHz",  8, 9, 5, 6},
     {"24.908kHz",  8, 9, 6, 7},
     {"28.058kHz",  8, 9, 7, 8},
    };

    GtkWidget *window;
    GtkWidget *button;
    GtkWidget *table;

    gtk_init (&argc, &argv);

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title (GTK_WINDOW (window), "IC-7410 Rig Control");
    gtk_signal_connect (GTK_OBJECT (window), "delete_event", GTK_SIGNAL_FUNC (delete_event), NULL);
    gtk_container_set_border_width (GTK_CONTAINER (window), 20);

    table = gtk_table_new(nx, ny, TRUE);
    gtk_container_add (GTK_CONTAINER (window), table);

    for(int i=0;i<nbutton;i++) {
      button = gtk_button_new_with_label (mybuttons[i].name);
      gtk_signal_connect (GTK_OBJECT (button), "clicked", GTK_SIGNAL_FUNC (callback),
                          (gpointer) mybuttons[i].name);
      gtk_table_attach_defaults(GTK_TABLE(table), button, 
                                mybuttons[i].left_attach, mybuttons[i].right_attach,
                                mybuttons[i].top_attach,  mybuttons[i].bottom_attach);
      gtk_widget_show (button);
    }

    button = gtk_button_new_with_label ("Quit");
    gtk_signal_connect (GTK_OBJECT (button), "clicked", GTK_SIGNAL_FUNC (delete_event), NULL);
    gtk_table_attach_defaults (GTK_TABLE(table), button, 1, 3, ny-3, ny-1);
    gtk_widget_show (button);

    gtk_widget_show (table);
    gtk_widget_show (window);

    gtk_main ();

    return 0;
}

I must add some sliders for AF volume, RF power, etc.

First you need to arrange buttons, each of which has some functionality.

% grep table myprog.c

GtkWidget *table;
table = gtk_table_new (4, 8, TRUE);
gtk_container_add (GTK_CONTAINER (window), table);
gtk_table_attach_defaults (GTK_TABLE(table), button, 0, 2, 0, 3);
gtk_table_attach_defaults (GTK_TABLE(table), button, 4, 5, 1, 3);
gtk_table_attach_defaults (GTK_TABLE(table), button, 6, 7, 2, 3);
gtk_table_attach_defaults (GTK_TABLE(table), button, 1, 6, 4, 5);
gtk_widget_show (table);

Here I used GtkTable to arrange the buttons two dimensionally.

You can map an image onto a button to give better impressions.

% ./myprog

CW was pressed
CW-REVERSE was pressed
SSB was pressed

In callback functions, only a g_print line is currently included, which should be replaced to send a command to IC-7410.