void clearLCD(){
/* clear the stack */
clearStack();
/* reset any error string */
resetError();
/* clear the entry buffer */
cancelEditor();
/* re-initialize (and clear) the undo system */
initUndoSystem();
/* redraw the window */
calcStackLCD();
drawStackLCD();
}
main(int argc, char *argv[])
{
int n;
int rows, cols;
int drawButtons;
char *btn_font, *disp_font;
/* GtkWidget *main_w; */
GtkWidget *vbox;
GtkWidget *menu;
GtkWidget *mdisp;
GtkWidget *lcd;
GtkWidget *btns;
GdkFont *new_font;
GtkStyle *default_style, *new_style;
GdkBitmap *icon_bitmap;
#ifdef USE_GNOME
GnomeAppBar *appbar;
#endif
setlocale(LC_ALL, "C");
#ifdef USE_GNOME
gnome_init("grpn", "1.0", argc, argv);
gnome_app_new("grpn", "grpn");
#else
/* initialize gtk */
gtk_init(&argc, &argv);
#endif
/* initial values */
drawButtons = 1;
rows = 8;
cols = 30;
btn_font = disp_font = NULL;
/* process command line args */
n = 1;
while(n < argc){
if(0 == strcmp("-fn", argv[n])){
n++;
if(n >= argc){
usage("Missing required argument for -fn.");
exit(0);
}
btn_font = disp_font = argv[n];
} else if(0 == strcmp("-btn-fn", argv[n])){
n++;
if(n >= argc){
usage("Missing required argument for -btn-fn.");
exit(0);
}
btn_font = argv[n];
} else if(0 == strcmp("-disp-fn", argv[n])){
n++;
if(n >= argc){
usage("Missing required argument for -disp-fn.");
exit(0);
}
disp_font = argv[n];
} else if(0 == strcmp("-rows", argv[n])){
n++;
if(n >= argc){
usage("Missing required argument for -rows.");
exit(0);
}
if(1 != sscanf(argv[n], "%d", &rows)){
usage("Unable to read number or rows.");
exit(0);
}
} else if(0 == strcmp("-cols", argv[n])){
n++;
if(n >= argc){
usage("Missing required argument for -cols.");
exit(0);
}
if(1 != sscanf(argv[n], "%d", &cols)){
usage("Unable to read number or cols.");
exit(0);
}
} else if(0 == strcmp("-b", argv[n])){
drawButtons = 0;
} else if(0 == strcmp("-bm", argv[n])){
n++;
if(n >= argc){
usage("Missing required argument for -m.");
exit(0);
}
if (0 == strcmp("dec", argv[n])){
setBaseMode(DECIMAL);
} else if (0 == strcmp("eng", argv[n])){
setBaseMode(DECIMAL_ENG);
} else if (0 == strcmp("bin", argv[n])){
setBaseMode(BINARY);
} else if (0 == strcmp("oct", argv[n])){
setBaseMode(OCTAL);
} else if (0 == strcmp("hex", argv[n])){
setBaseMode(HEXADECIMAL);
} else {
usage("Specify dec, eng, bin, oct or hex for -m.");
exit(0);
}
} else {
usage("Unknown Argument.");
exit(0);
}
n++;
}
/* set up any constants we may use */
setup_constant();
/* initialize the undo system */
initUndoSystem();
/* setup the stack */
if(0 == setup_stack()){
fprintf(stderr, "Error: Could not initalize data structures.\n");
exit(0);
}
/* set the font if told */
if(btn_font != NULL){
default_style = gtk_widget_get_default_style();
if(NULL == (new_font = gdk_font_load(btn_font))){
fprintf(stderr, "Unable to load font %s.\n", btn_font);
exit(0);
}
new_style = gtk_style_copy(default_style);
new_style->font_desc = new_font;
/* BDD - No longer in Gtk2.x */
/* gtk_widget_set_default_style(new_style); */
}
#ifdef USE_GNOME
main_w = gnome_app_new("grpn", "grpn");
setup_menu(main_w);
appbar = GNOME_APPBAR(gnome_appbar_new(FALSE, FALSE, FALSE));
gnome_app_set_statusbar(GNOME_APP(main_w), GTK_WIDGET(appbar));
/*create the box that everyone goes in */
vbox = gtk_vbox_new(FALSE, 0);
gnome_app_set_contents(GNOME_APP(main_w), vbox);
gtk_widget_show(vbox);
#else
/* the main window contains the work area and the menubar */
main_w = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_widget_set_name(main_w, "grpn");
/*create the box that everyone goes in */
vbox = gtk_vbox_new(FALSE, 0);
gtk_container_add(GTK_CONTAINER(main_w), vbox);
gtk_widget_show(vbox);
/* set up the menu bar */
menu = setup_menu(vbox);
#endif
/* handle window manager close */
gtk_signal_connect(GTK_OBJECT(main_w), "delete_event",
GTK_SIGNAL_FUNC(delete_event), NULL);
gtk_signal_connect(GTK_OBJECT(main_w), "destroy",
GTK_SIGNAL_FUNC(destroy), NULL);
/* create the varrious subsystems */
mdisp = setupModeDisplay(vbox);
if(drawButtons) btns = setupButtons(vbox);
lcd = setupLCD(vbox, rows, cols, disp_font);
/* Create pixmap of depth 1 (bitmap) for icon */
gtk_widget_realize(main_w);
icon_bitmap = gdk_bitmap_create_from_data(main_w->window,
icon_bitmap_bits, icon_bitmap_width, icon_bitmap_height);
gdk_window_set_icon(main_w->window, NULL, icon_bitmap, NULL);
gtk_widget_show(main_w);
gtk_main();
}
