4  *  buttons.c -- draw buttons, e.g., OK/Cancel
6  *  Copyright 2000-2020,2021	Thomas E. Dickey
31 #define MIN_BUTTON (-dialog_state.visit_cols)
42 	int left = (longest - len) / 2;  in center_label()
43 	right = (longest - len - left);  in center_label()
125  * Determine the hot-keys for a set of button-labels.  Normally these are
127  * button has the same first-uppercase, then we will (attempt to) look for
152 		if ((last - first) != 1) {  in get_hotkeys()
174  * Print a button
205 	    if ((last - first) != 1) {  in print_button()
222 	waddnstr(win, label + first, last - first);  in print_button()
246  * Compute the size of the button array in columns.  Return the total number of
247  * columns in *length, and the longest button's columns in *longest
274     if (*longest < 6 - (*longest & 1))  in dlg_button_sizes()
275 	*longest = 6 - (*longest & 1);  in dlg_button_sizes()
281  * Compute the size of the button array.
298 	unused = limit - used;  in dlg_button_x_step()
307 	*step = *gap + (used + count - 1) / count;  in dlg_button_x_step()
395 			 CHR_BUTTON ? hotkeys[n] : -1,  in dlg_draw_buttons()
451     int cmp = -1;  in dlg_button_to_char()
464  * Given a list of button labels, and a character which may be the abbreviation
552  * Return a list of button labels.
583  * Map the given button index for dlg_exit_label() into our exit-code.
586 dlg_exit_buttoncode(int button)  in dlg_exit_buttoncode()  argument
594     result = dlg_ok_buttoncode(button);  in dlg_exit_buttoncode()
607 	dlg_trace_msg("# ignore --nook, since at least one button is needed\n");  in finish_ok_label()
615  * Return a list of button labels for the OK (no Cancel) group, used in msgbox
635  * Return a list of button labels for the OK/Cancel group, used in most widgets
657  * Map the given button index for dlg_ok_labels() into our exit-code
660 dlg_ok_buttoncode(int button)  in dlg_ok_buttoncode()  argument
665     if (!dialog_vars.nook && (button <= 0)) {  in dlg_ok_buttoncode()
667     } else if (dialog_vars.extra_button && (button == n++)) {  in dlg_ok_buttoncode()
669     } else if (!dialog_vars.nocancel && (button == n++)) {  in dlg_ok_buttoncode()
671     } else if (dialog_vars.help_button && (button == n)) {  in dlg_ok_buttoncode()
675 	       button, result, dlg_exitcode2s(result)));  in dlg_ok_buttoncode()
696  * Similarly, find the previous button index.
701     int result = current - 1;  in dlg_prev_ok_buttonindex()
712  * Find the button-index for the "OK" or "Cancel" button, according to
713  * whether --defaultno is given.  If --nocancel was given, we always return
714  * the index for the first button (usually "OK" unless --nook was used).
730  * Find the button-index for a button named with --default-button. If the
731  * option was not specified, or if the selected button does not exist, return
732  * the index of the first button (usually "OK" unless --nook was used).
780  * Map the given button index for dlg_yes_labels() into our exit-code.
783 dlg_yes_buttoncode(int button)  in dlg_yes_buttoncode()  argument
788 	result = dlg_ok_buttoncode(button);  in dlg_yes_buttoncode()
789     } else if (button == 0) {  in dlg_yes_buttoncode()
791     } else if (button == 1) {  in dlg_yes_buttoncode()
793     } else if (button == 2 && dialog_vars.help_button) {  in dlg_yes_buttoncode()
804 dlg_next_button(const char **labels, int button)  in dlg_next_button()  argument
806     if (button < -1)  in dlg_next_button()
807 	button = -1;  in dlg_next_button()
809     if (labels[button + 1] != 0) {  in dlg_next_button()
810 	++button;  in dlg_next_button()
812 	button = MIN_BUTTON;  in dlg_next_button()
814     return button;  in dlg_next_button()
821 dlg_prev_button(const char **labels, int button)  in dlg_prev_button()  argument
823     if (button > MIN_BUTTON) {  in dlg_prev_button()
824 	--button;  in dlg_prev_button()
826 	if (button < -1)  in dlg_prev_button()
827 	    button = -1;  in dlg_prev_button()
829 	while (labels[button + 1] != 0)  in dlg_prev_button()
830 	    ++button;  in dlg_prev_button()
832     return button;  in dlg_prev_button()