1/*
2 * $Id: timebox.c,v 1.54 2013/03/17 15:03:41 tom Exp $
3 *
4 *  timebox.c -- implements the timebox dialog
5 *
6 *  Copyright 2001-2012,2013   Thomas E. Dickey
7 *
8 *  This program is free software; you can redistribute it and/or modify
9 *  it under the terms of the GNU Lesser General Public License, version 2.1
10 *  as published by the Free Software Foundation.
11 *
12 *  This program is distributed in the hope that it will be useful, but
13 *  WITHOUT ANY WARRANTY; without even the implied warranty of
14 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 *  Lesser General Public License for more details.
16 *
17 *  You should have received a copy of the GNU Lesser General Public
18 *  License along with this program; if not, write to
19 *	Free Software Foundation, Inc.
20 *	51 Franklin St., Fifth Floor
21 *	Boston, MA 02110, USA.
22 */
23
24#include <dialog.h>
25#include <dlg_keys.h>
26
27#include <time.h>
28
29#define ONE_HIGH 1
30#define ONE_WIDE 2
31#define BTN_HIGH 2
32
33#define MIN_HIGH (ONE_HIGH + BTN_HIGH + (4 * MARGIN))
34#define MIN_WIDE ((3 * (ONE_WIDE + 2 * MARGIN)) + 2 + (2 * MARGIN))
35
36typedef enum {
37    sHR = -3
38    ,sMN = -2
39    ,sSC = -1
40} STATES;
41
42struct _box;
43
44typedef struct _box {
45    WINDOW *parent;
46    WINDOW *window;
47    int x;
48    int y;
49    int width;
50    int height;
51    int period;
52    int value;
53} BOX;
54
55static int
56next_or_previous(int key)
57{
58    int result = 0;
59
60    switch (key) {
61    case DLGK_ITEM_PREV:
62	result = -1;
63	break;
64    case DLGK_ITEM_NEXT:
65	result = 1;
66	break;
67    default:
68	beep();
69	break;
70    }
71    return result;
72}
73/*
74 * Draw the hour-of-month selection box
75 */
76static int
77draw_cell(BOX * data)
78{
79    werase(data->window);
80    dlg_draw_box(data->parent,
81		 data->y - MARGIN, data->x - MARGIN,
82		 data->height + (2 * MARGIN), data->width + (2 * MARGIN),
83		 menubox_border_attr, menubox_border2_attr);
84
85    (void) wattrset(data->window, item_attr);
86    wprintw(data->window, "%02d", data->value);
87    return 0;
88}
89
90static int
91init_object(BOX * data,
92	    WINDOW *parent,
93	    int x, int y,
94	    int width, int height,
95	    int period, int value,
96	    int code)
97{
98    (void) code;
99
100    data->parent = parent;
101    data->x = x;
102    data->y = y;
103    data->width = width;
104    data->height = height;
105    data->period = period;
106    data->value = value % period;
107
108    data->window = derwin(data->parent,
109			  data->height, data->width,
110			  data->y, data->x);
111    if (data->window == 0)
112	return -1;
113    (void) keypad(data->window, TRUE);
114
115    dlg_mouse_setbase(getbegx(parent), getbegy(parent));
116    dlg_mouse_mkregion(y, x, height, width, code);
117
118    return 0;
119}
120
121static int
122CleanupResult(int code, WINDOW *dialog, char *prompt, DIALOG_VARS * save_vars)
123{
124    dlg_del_window(dialog);
125    dlg_mouse_free_regions();
126    free(prompt);
127    dlg_restore_vars(save_vars);
128
129    return code;
130}
131
132#define DrawObject(data) draw_cell(data)
133
134/*
135 * Display a dialog box for entering a date
136 */
137int
138dialog_timebox(const char *title,
139	       const char *subtitle,
140	       int height,
141	       int width,
142	       int hour,
143	       int minute,
144	       int second)
145{
146    /* *INDENT-OFF* */
147    static DLG_KEYS_BINDING binding[] = {
148	DLG_KEYS_DATA( DLGK_DELETE_RIGHT,KEY_DC ),
149	HELPKEY_BINDINGS,
150	ENTERKEY_BINDINGS,
151	DLG_KEYS_DATA( DLGK_ENTER,	' ' ),
152	DLG_KEYS_DATA( DLGK_FIELD_FIRST,KEY_HOME ),
153	DLG_KEYS_DATA( DLGK_FIELD_LAST, KEY_END ),
154	DLG_KEYS_DATA( DLGK_FIELD_LAST, KEY_LL ),
155	DLG_KEYS_DATA( DLGK_FIELD_NEXT, CHR_NEXT ),
156	DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_RIGHT ),
157	DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ),
158	DLG_KEYS_DATA( DLGK_FIELD_PREV, CHR_BACKSPACE ),
159	DLG_KEYS_DATA( DLGK_FIELD_PREV, CHR_PREVIOUS ),
160	DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ),
161	DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_LEFT ),
162	DLG_KEYS_DATA( DLGK_ITEM_NEXT,  '+'),
163	DLG_KEYS_DATA( DLGK_ITEM_NEXT,  KEY_DOWN),
164	DLG_KEYS_DATA( DLGK_ITEM_NEXT,  KEY_NEXT),
165	DLG_KEYS_DATA( DLGK_ITEM_NEXT,  KEY_NPAGE),
166	DLG_KEYS_DATA( DLGK_ITEM_PREV,  '-' ),
167	DLG_KEYS_DATA( DLGK_ITEM_PREV,  KEY_PPAGE ),
168	DLG_KEYS_DATA( DLGK_ITEM_PREV,  KEY_PREVIOUS ),
169	DLG_KEYS_DATA( DLGK_ITEM_PREV,  KEY_UP ),
170	END_KEYS_BINDING
171    };
172    /* *INDENT-ON* */
173
174#ifdef KEY_RESIZE
175    int old_height = height;
176    int old_width = width;
177#endif
178    BOX hr_box, mn_box, sc_box;
179    int key = 0, key2, fkey;
180    int button;
181    int result = DLG_EXIT_UNKNOWN;
182    WINDOW *dialog;
183    time_t now_time = time((time_t *) 0);
184    struct tm current;
185    int state = dlg_default_button();
186    const char **buttons = dlg_ok_labels();
187    char *prompt = dlg_strclone(subtitle);
188    char buffer[MAX_LEN];
189    DIALOG_VARS save_vars;
190
191    now_time = time((time_t *) 0);
192    current = *localtime(&now_time);
193
194    dlg_save_vars(&save_vars);
195    dialog_vars.separate_output = TRUE;
196
197    dlg_does_output();
198
199#ifdef KEY_RESIZE
200  retry:
201#endif
202
203    dlg_auto_size(title, prompt, &height, &width, 0, 0);
204    height += MIN_HIGH;
205    if (width < MIN_WIDE)
206	width = MIN_WIDE;
207    dlg_button_layout(buttons, &width);
208    dlg_print_size(height, width);
209    dlg_ctl_size(height, width);
210
211    dialog = dlg_new_window(height, width,
212			    dlg_box_y_ordinate(height),
213			    dlg_box_x_ordinate(width));
214
215    if (hour >= 24 || minute >= 60 || second >= 60) {
216	return CleanupResult(DLG_EXIT_ERROR, dialog, prompt, &save_vars);
217    }
218
219    dlg_register_window(dialog, "timebox", binding);
220    dlg_register_buttons(dialog, "timebox", buttons);
221
222    dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr);
223    dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr);
224    dlg_draw_title(dialog, title);
225    dlg_draw_helpline(dialog, FALSE);
226
227    (void) wattrset(dialog, dialog_attr);
228    dlg_print_autowrap(dialog, prompt, height, width);
229
230    /* compute positions of hour, month and year boxes */
231    memset(&hr_box, 0, sizeof(hr_box));
232    memset(&mn_box, 0, sizeof(mn_box));
233    memset(&sc_box, 0, sizeof(sc_box));
234
235    if (init_object(&hr_box,
236		    dialog,
237		    (width - MIN_WIDE + 1) / 2 + MARGIN,
238		    (height - MIN_HIGH + MARGIN),
239		    ONE_WIDE,
240		    ONE_HIGH,
241		    24,
242		    hour >= 0 ? hour : current.tm_hour,
243		    'H') < 0
244	|| DrawObject(&hr_box) < 0) {
245	return CleanupResult(DLG_EXIT_ERROR, dialog, prompt, &save_vars);
246    }
247
248    mvwprintw(dialog, hr_box.y, hr_box.x + ONE_WIDE + MARGIN, ":");
249    if (init_object(&mn_box,
250		    dialog,
251		    hr_box.x + (ONE_WIDE + 2 * MARGIN + 1),
252		    hr_box.y,
253		    hr_box.width,
254		    hr_box.height,
255		    60,
256		    minute >= 0 ? minute : current.tm_min,
257		    'M') < 0
258	|| DrawObject(&mn_box) < 0) {
259	return CleanupResult(DLG_EXIT_ERROR, dialog, prompt, &save_vars);
260    }
261
262    mvwprintw(dialog, mn_box.y, mn_box.x + ONE_WIDE + MARGIN, ":");
263    if (init_object(&sc_box,
264		    dialog,
265		    mn_box.x + (ONE_WIDE + 2 * MARGIN + 1),
266		    mn_box.y,
267		    mn_box.width,
268		    mn_box.height,
269		    60,
270		    second >= 0 ? second : current.tm_sec,
271		    'S') < 0
272	|| DrawObject(&sc_box) < 0) {
273	return CleanupResult(DLG_EXIT_ERROR, dialog, prompt, &save_vars);
274    }
275
276    dlg_trace_win(dialog);
277    while (result == DLG_EXIT_UNKNOWN) {
278	BOX *obj = (state == sHR ? &hr_box
279		    : (state == sMN ? &mn_box :
280		       (state == sSC ? &sc_box : 0)));
281
282	button = (state < 0) ? 0 : state;
283	dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width);
284	if (obj != 0)
285	    dlg_set_focus(dialog, obj->window);
286
287	key = dlg_mouse_wgetch(dialog, &fkey);
288	if (dlg_result_key(key, fkey, &result))
289	    break;
290
291	if ((key2 = dlg_char_to_button(key, buttons)) >= 0) {
292	    result = key2;
293	} else {
294	    /* handle function-keys */
295	    if (fkey) {
296		switch (key) {
297		case DLGK_MOUSE('H'):
298		    state = sHR;
299		    break;
300		case DLGK_MOUSE('M'):
301		    state = sMN;
302		    break;
303		case DLGK_MOUSE('S'):
304		    state = sSC;
305		    break;
306		case DLGK_ENTER:
307		    result = dlg_ok_buttoncode(button);
308		    break;
309		case DLGK_FIELD_PREV:
310		    state = dlg_prev_ok_buttonindex(state, sHR);
311		    break;
312		case DLGK_FIELD_NEXT:
313		    state = dlg_next_ok_buttonindex(state, sHR);
314		    break;
315		case DLGK_FIELD_FIRST:
316		    if (obj != 0) {
317			obj->value = 0;
318			(void) DrawObject(obj);
319		    }
320		    break;
321		case DLGK_FIELD_LAST:
322		    if (obj != 0) {
323			switch (state) {
324			case sHR:
325			    obj->value = 23;
326			    break;
327			case sMN:
328			case sSC:
329			    obj->value = 59;
330			    break;
331			}
332			(void) DrawObject(obj);
333		    }
334		    break;
335		case DLGK_DELETE_RIGHT:
336		    if (obj != 0) {
337			obj->value /= 10;
338			(void) DrawObject(obj);
339		    }
340		    break;
341#ifdef KEY_RESIZE
342		case KEY_RESIZE:
343		    /* reset data */
344		    height = old_height;
345		    width = old_width;
346		    hour = hr_box.value;
347		    minute = mn_box.value;
348		    second = sc_box.value;
349		    /* repaint */
350		    dlg_clear();
351		    dlg_del_window(dialog);
352		    refresh();
353		    dlg_mouse_free_regions();
354		    goto retry;
355#endif
356		default:
357		    if (is_DLGK_MOUSE(key)) {
358			result = dlg_ok_buttoncode(key - M_EVENT);
359			if (result < 0)
360			    result = DLG_EXIT_OK;
361		    } else if (obj != 0) {
362			int step = next_or_previous(key);
363			if (step != 0) {
364			    obj->value += step;
365			    while (obj->value < 0)
366				obj->value += obj->period;
367			    obj->value %= obj->period;
368			    (void) DrawObject(obj);
369			}
370		    }
371		    break;
372		}
373	    } else if (isdigit(key)) {
374		if (obj != 0) {
375		    int digit = (key - '0');
376		    int value = (obj->value * 10) + digit;
377		    if (value < obj->period) {
378			obj->value = value;
379			(void) DrawObject(obj);
380		    } else {
381			beep();
382		    }
383		}
384	    } else {
385		beep();
386	    }
387	}
388    }
389
390#define DefaultFormat(dst, src) \
391	sprintf(dst, "%02d:%02d:%02d", \
392		hr_box.value, mn_box.value, sc_box.value)
393
394#if defined(HAVE_STRFTIME)
395    if (dialog_vars.time_format != 0) {
396	size_t used;
397	time_t now = time((time_t *) 0);
398	struct tm *parts = localtime(&now);
399
400	parts->tm_sec = sc_box.value;
401	parts->tm_min = mn_box.value;
402	parts->tm_hour = hr_box.value;
403	used = strftime(buffer,
404			sizeof(buffer) - 1,
405			dialog_vars.time_format,
406			parts);
407	if (used == 0 || *buffer == '\0')
408	    DefaultFormat(buffer, hr_box);
409    } else
410#endif
411	DefaultFormat(buffer, hr_box);
412
413    dlg_add_result(buffer);
414    dlg_add_separator();
415    dlg_add_last_key(-1);
416
417    return CleanupResult(result, dialog, prompt, &save_vars);
418}
419