ui/ncurses: Add simple ncurses form widget set

We're doing a lot of the same stuff with forms, and we'll to implement a
lot of fields with the upcoming configuration interface.

This change introduces a simple ncurses widget set.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

1 files changed, 73 insertions, 0 deletions

diff --git a/ui/ncurses/nc-widgets.h b/ui/ncurses/nc-widgets.h
new file mode 100644
index 0000000..53f1583
--- /dev/null
+++ b/ui/ncurses/nc-widgets.h
@@ -0,0 +1,73 @@
+/*
+ *  Copyright (C) 2013 IBM Corporation
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef NC_WIDGETS_H
+
+struct nc_widgetset;
+struct nc_widget_label;
+struct nc_widget_checkbox;
+struct nc_widget_textbox;
+struct nc_widget_button;
+
+struct nc_widget_label *widget_new_label(struct nc_widgetset *set,
+		int y, int x, char *str);
+struct nc_widget_checkbox *widget_new_checkbox(struct nc_widgetset *set,
+		int y, int x, bool checked);
+struct nc_widget_textbox *widget_new_textbox(struct nc_widgetset *set,
+		int y, int x, int len, char *str);
+struct nc_widget_select *widget_new_select(struct nc_widgetset *set,
+		int y, int x, int len);
+struct nc_widget_button *widget_new_button(struct nc_widgetset *set,
+		int y, int x, int size, const char *str,
+		void (*click)(void *), void *arg);
+
+void widget_select_add_option(struct nc_widget_select *select, int value,
+		const char *text, bool selected);
+
+void widget_select_on_change(struct nc_widget_select *select,
+		void (*on_change)(void *arg, int value), void *arg);
+
+char *widget_textbox_get_value(struct nc_widget_textbox *textbox);
+bool widget_checkbox_get_value(struct nc_widget_checkbox *checkbox);
+int widget_select_get_value(struct nc_widget_select *select);
+int widget_select_height(struct nc_widget_select *select);
+
+/* generic widget API */
+struct nc_widget *widget_textbox_base(struct nc_widget_textbox *textbox);
+struct nc_widget *widget_checkbox_base(struct nc_widget_checkbox *checkbox);
+struct nc_widget *widget_select_base(struct nc_widget_select *select);
+struct nc_widget *widget_label_base(struct nc_widget_label *label);
+struct nc_widget *widget_button_base(struct nc_widget_button *button);
+
+void widget_move(struct nc_widget *widget, int y, int x);
+void widget_set_visible(struct nc_widget *widget, bool visible);
+int widget_height(struct nc_widget *widget);
+int widget_width(struct nc_widget *widget);
+int widget_y(struct nc_widget *widget);
+int widget_x(struct nc_widget *widget);
+
+/* widgetset API */
+typedef void (*widget_focus_cb)(struct nc_widget *widget, void *arg);
+struct nc_widgetset *widgetset_create(void *ctx, WINDOW *main, WINDOW *sub);
+void widgetset_set_widget_focus(struct nc_widgetset *set,
+		widget_focus_cb cb, void *arg);
+void widgetset_post(struct nc_widgetset *set);
+void widgetset_unpost(struct nc_widgetset *set);
+bool widgetset_process_key(struct nc_widgetset *set, int key);
+
+#endif /* NC_WIDGETS_H */
+