/** datacallback.c **/
#include <gnome.h>

typedef struct {
    GtkWidget *app;
    gchar defaultFilename[40];
    gchar currentFilename[40];
} pgmContext;

gint eventDelete(GtkWidget *widget,
        GdkEvent *event,gpointer data);
gint eventDestroy(GtkWidget *widget,
        GdkEvent *event,gpointer data);
void saveAsButton(GtkWidget *widget,pgmContext *pc);
void setTermination(GtkWidget *app);
void fileSaveCallback(gchar *filename,pgmContext *pc);

int main(int argc,char *argv[])
{
    GtkWidget *button;
    pgmContext pc;

    strcpy(pc.defaultFilename,"/var/dcall/sqlim.dat");

    gnome_init("datacallback","1.0",argc,argv);
    pc.app = gnome_app_new("datacallback","Data Passing");
    setTermination(pc.app);
    
    button = gtk_button_new_with_label(
            "Save As");
    gtk_signal_connect(GTK_OBJECT(button),
            "clicked",
            GTK_SIGNAL_FUNC(saveAsButton),
            &pc);
    gnome_app_set_contents(GNOME_APP(pc.app),button);

    gtk_container_set_border_width(
            GTK_CONTAINER(pc.app),30);
    gtk_widget_show(button);
    gtk_widget_show(pc.app);
    gtk_main();
    exit(0);
}
void saveAsButton(GtkWidget *widget,pgmContext *pc) {
    GtkWidget *dialog;

    dialog = gnome_request_dialog(FALSE,
            "File name",
            pc->defaultFilename,
            40,
            (GnomeStringCallback)fileSaveCallback,
            pc,
            GTK_WINDOW(pc->app));
    gtk_window_set_modal(GTK_WINDOW(dialog),TRUE);
}
void fileSaveCallback(gchar *filename,pgmContext *pc) {
    if((filename == NULL) || (strlen(filename) == 0))
        return;
    strcpy(pc->currentFilename,filename);
    g_print("Save file as %s\n",pc->currentFilename);
}

void setTermination(GtkWidget *app) {
    gtk_signal_connect(GTK_OBJECT(app),
            "delete_event",
            GTK_SIGNAL_FUNC(eventDelete),
            NULL);
    gtk_signal_connect(GTK_OBJECT(app),
            "destroy",
            GTK_SIGNAL_FUNC(eventDestroy),
            NULL);
}
gint eventDelete(GtkWidget *widget,
        GdkEvent *event,gpointer data) {
    return(FALSE);
}
gint eventDestroy(GtkWidget *widget,
        GdkEvent *event,gpointer data) {
    gtk_main_quit();
    return(0);
}