2 * Copyright (C) 2013 IBM Corporation
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 #if defined(HAVE_CONFIG_H)
26 #include <talloc/talloc.h>
27 #include <types/types.h>
28 #include <i18n/i18n.h>
32 #include "nc-subset.h"
36 struct subset_screen {
39 struct nc_scr *return_scr;
40 struct nc_widgetset *widgetset;
42 struct nc_widget_subset *options;
45 void (*on_exit)(struct cui *);
53 struct nc_widget_select *options_f;
55 struct nc_widget_button *ok_b;
56 struct nc_widget_button *cancel_b;
60 struct nc_scr *subset_screen_return_scr(struct subset_screen *screen)
62 return screen->return_scr;
65 static struct subset_screen *subset_screen_from_scr(struct nc_scr *scr)
67 struct subset_screen *subset_screen;
69 assert(scr->sig == pb_subset_screen_sig);
70 subset_screen = (struct subset_screen *)
71 ((char *)scr - (size_t)&((struct subset_screen *)0)->scr);
72 assert(subset_screen->scr.sig == pb_subset_screen_sig);
76 static void pad_refresh(struct subset_screen *screen)
80 getmaxyx(screen->scr.sub_ncw, rows, cols);
81 getbegyx(screen->scr.sub_ncw, y, x);
83 prefresh(screen->pad, screen->scroll_y, 0, y, x, rows, cols);
86 static void subset_screen_process_key(struct nc_scr *scr, int key)
88 struct subset_screen *screen = subset_screen_from_scr(scr);
91 handled = widgetset_process_key(screen->widgetset, key);
103 screen->on_exit(screen->cui);
108 static int subset_screen_post(struct nc_scr *scr)
110 struct subset_screen *screen = subset_screen_from_scr(scr);
111 widgetset_post(screen->widgetset);
112 nc_scr_frame_draw(scr);
113 redrawwin(scr->main_ncw);
114 wrefresh(scr->main_ncw);
119 static int subset_screen_unpost(struct nc_scr *scr)
121 struct subset_screen *screen = subset_screen_from_scr(scr);
122 widgetset_unpost(screen->widgetset);
126 struct nc_scr *subset_screen_scr(struct subset_screen *screen)
131 static void ok_click(void *arg)
133 struct subset_screen *screen = arg;
134 int idx = widget_select_get_value(screen->widgets.options_f);
135 widget_subset_callback(screen->return_scr, screen->options, idx);
139 static void cancel_click(void *arg)
141 struct subset_screen *screen = arg;
145 static void subset_screen_layout_widgets(struct subset_screen *screen)
150 widget_move(widget_select_base(screen->widgets.options_f),
152 y+= widget_height(widget_select_base(screen->widgets.options_f));
157 widget_move(widget_button_base(screen->widgets.ok_b),
159 widget_move(widget_button_base(screen->widgets.cancel_b),
160 y, screen->field_x + 14);
163 static void subset_screen_option_select(void *arg, int value)
165 struct subset_screen *screen = arg;
166 widgetset_unpost(screen->widgetset);
167 subset_screen_layout_widgets(screen);
168 widgetset_post(screen->widgetset);
172 static void subset_screen_setup_widgets(struct subset_screen *screen)
174 struct nc_widgetset *set = screen->widgetset;
175 struct nc_widget_subset *subset = screen->options;
177 build_assert(sizeof(screen->widgets) / sizeof(struct widget *)
180 screen->widgets.options_f = widget_new_select(set, 0, 0,
181 COLS - (2 * screen->label_x));
183 widget_select_on_change(screen->widgets.options_f,
184 subset_screen_option_select, screen);
186 widget_subset_show_inactive(subset, screen->widgets.options_f);
188 screen->widgets.ok_b = widget_new_button(set, 0, 0, 10, _("OK"),
190 screen->widgets.cancel_b = widget_new_button(set, 0, 0, 10, _("Cancel"),
191 cancel_click, screen);
194 static void subset_screen_widget_focus(struct nc_widget *widget, void *arg)
196 struct subset_screen *screen = arg;
199 w_y = widget_y(widget) + widget_focus_y(widget);
200 s_max = getmaxy(screen->scr.sub_ncw) - 1;
202 if (w_y < screen->scroll_y)
203 screen->scroll_y = w_y;
205 else if (w_y + screen->scroll_y + 1 > s_max)
206 screen->scroll_y = 1 + w_y - s_max;
214 static void subset_screen_draw(struct subset_screen *screen)
219 /* Size of pad = top space + number of available options */
220 height = 1 + N_FIELDS + widget_subset_n_inactive(screen->options);
222 if (!screen->pad || getmaxy(screen->pad) < height) {
225 screen->pad = newpad(height, COLS);
228 if (screen->widgetset) {
229 widgetset_unpost(screen->widgetset);
230 talloc_free(screen->widgetset);
234 screen->widgetset = widgetset_create(screen, screen->scr.main_ncw,
236 widgetset_set_widget_focus(screen->widgetset,
237 subset_screen_widget_focus, screen);
239 subset_screen_setup_widgets(screen);
240 subset_screen_layout_widgets(screen);
243 widgetset_post(screen->widgetset);
246 static int subset_screen_destroy(void *arg)
248 struct subset_screen *screen = arg;
254 struct subset_screen *subset_screen_init(struct cui *cui,
255 struct nc_scr *current_scr,
256 const char *title_suffix,
258 void (*on_exit)(struct cui *))
260 struct subset_screen *screen;
262 screen = talloc_zero(cui, struct subset_screen);
263 talloc_set_destructor(screen, subset_screen_destroy);
266 screen->on_exit = on_exit;
267 screen->options = (struct nc_widget_subset *) subset;
271 screen->return_scr = current_scr;
273 nc_scr_init(&screen->scr, pb_subset_screen_sig, 0,
274 cui, subset_screen_process_key,
275 subset_screen_post, subset_screen_unpost,
278 screen->scr.frame.ltitle = talloc_strdup(screen,
280 screen->scr.frame.rtitle = NULL;
281 screen->scr.frame.help = talloc_strdup(screen,
282 _("tab=next, shift+tab=previous, x=exit"));
284 scrollok(screen->scr.sub_ncw, true);
286 subset_screen_draw(screen);