source: view.c @ 488ebf6

owl
Last change on this file since 488ebf6 was fa00c5c, checked in by James M. Kretchmar <kretch@mit.edu>, 15 years ago
Correct license.
  • Property mode set to 100644
File size: 4.8 KB
Line 
1/* Copyright (c) 2002,2003,2004,2009 James M. Kretchmar
2 *
3 * This file is part of Owl.
4 *
5 * Owl is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 *
10 * Owl is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with Owl.  If not, see <http://www.gnu.org/licenses/>.
17 *
18 * ---------------------------------------------------------------
19 *
20 * As of Owl version 2.1.12 there are patches contributed by
21 * developers of the branched BarnOwl project, Copyright (c)
22 * 2006-2009 The BarnOwl Developers. All rights reserved.
23 */
24
25#include <stdlib.h>
26#include "owl.h"
27
28static const char fileIdent[] = "$Id$";
29
30void owl_view_create(owl_view *v, char *name, owl_filter *f, owl_style *s)
31{
32  v->name=owl_strdup(name);
33  v->filter=f;
34  v->style=s;
35  owl_messagelist_create(&(v->ml));
36  owl_view_recalculate(v);
37}
38
39char *owl_view_get_name(owl_view *v)
40{
41  return(v->name);
42}
43
44/* if the message matches the filter then add to view */
45void owl_view_consider_message(owl_view *v, owl_message *m)
46{
47  if (owl_filter_message_match(v->filter, m)) {
48    owl_messagelist_append_element(&(v->ml), m);
49  }
50}
51
52/* remove all messages, add all the global messages that match the
53 * filter.
54 */
55void owl_view_recalculate(owl_view *v)
56{
57  int i, j;
58  owl_messagelist *gml;
59  owl_messagelist *ml;
60  owl_message *m;
61
62  gml=owl_global_get_msglist(&g);
63  ml=&(v->ml);
64
65  /* nuke the old list */
66  owl_list_free_simple((owl_list *) ml);
67  owl_messagelist_create(&(v->ml));
68
69  /* find all the messages we want */
70  j=owl_messagelist_get_size(gml);
71  for (i=0; i<j; i++) {
72    m=owl_messagelist_get_element(gml, i);
73    if (owl_filter_message_match(v->filter, m)) {
74      owl_messagelist_append_element(ml, m);
75    }
76  }
77}
78
79void owl_view_new_filter(owl_view *v, owl_filter *f)
80{
81  v->filter=f;
82  owl_view_recalculate(v);
83}
84
85void owl_view_set_style(owl_view *v, owl_style *s)
86{
87  v->style=s;
88}
89
90owl_style *owl_view_get_style(owl_view *v)
91{
92  return(v->style);
93}
94
95char *owl_view_get_style_name(owl_view *v) {
96  return(owl_style_get_name(v->style));
97}
98
99owl_message *owl_view_get_element(owl_view *v, int index)
100{
101  return(owl_messagelist_get_element(&(v->ml), index));
102}
103
104void owl_view_delete_element(owl_view *v, int index)
105{
106  owl_messagelist_delete_element(&(v->ml), index);
107}
108
109void owl_view_undelete_element(owl_view *v, int index)
110{
111  owl_messagelist_undelete_element(&(v->ml), index);
112}
113
114int owl_view_get_size(owl_view *v)
115{
116  return(owl_messagelist_get_size(&(v->ml)));
117}
118
119/* Returns the position in the view with a message closest
120 * to the passed msgid. */
121int owl_view_get_nearest_to_msgid(owl_view *v, int targetid)
122{
123  int first, last, mid = 0, max, bestdist, curid = 0;
124
125  first = 0;
126  last = max = owl_view_get_size(v) - 1;
127  while (first <= last) {
128    mid = (first + last) / 2;
129    curid = owl_message_get_id(owl_view_get_element(v, mid));
130    if (curid == targetid) {
131      return(mid);
132    } else if (curid < targetid) {
133      first = mid + 1;
134    } else {
135      last = mid - 1;
136    }
137  }
138  bestdist = abs(targetid-curid);
139  if (curid < targetid && mid+1 < max) {
140    curid = owl_message_get_id(owl_view_get_element(v, mid+1));
141    mid = (bestdist < abs(targetid-curid)) ? mid : mid+1;
142  }
143  else if (curid > targetid && mid-1 >= 0) {
144    curid = owl_message_get_id(owl_view_get_element(v, mid-1));
145    mid = (bestdist < abs(targetid-curid)) ? mid : mid-1;
146  }
147  return mid;
148}
149
150int owl_view_get_nearest_to_saved(owl_view *v)
151{
152  int cachedid;
153
154  cachedid=owl_filter_get_cachedmsgid(v->filter);
155  if (cachedid<0) return(0);
156  return (owl_view_get_nearest_to_msgid(v, cachedid));
157}
158
159/* saves the current message position in the filter so it can
160 * be restored later if we switch back to this filter. */
161void owl_view_save_curmsgid(owl_view *v, int curid)
162{
163  owl_filter_set_cachedmsgid(v->filter, curid);
164}
165
166/* fmtext should already be initialized */
167void owl_view_to_fmtext(owl_view *v, owl_fmtext *fm)
168{
169  owl_fmtext_append_normal(fm, "Name: ");
170  owl_fmtext_append_normal(fm, v->name);
171  owl_fmtext_append_normal(fm, "\n");
172
173  owl_fmtext_append_normal(fm, "Filter: ");
174  owl_fmtext_append_normal(fm, owl_filter_get_name(v->filter));
175  owl_fmtext_append_normal(fm, "\n");
176
177  owl_fmtext_append_normal(fm, "Style: ");
178  owl_fmtext_append_normal(fm, owl_style_get_name(v->style));
179  owl_fmtext_append_normal(fm, "\n");
180}
181
182char *owl_view_get_filtname(owl_view *v)
183{
184  return(owl_filter_get_name(v->filter));
185}
186
187void owl_view_free(owl_view *v)
188{
189  owl_list_free_simple((owl_list *) &(v->ml));
190  if (v->name) owl_free(v->name);
191}
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