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author | Yoshihisa Uchida <uchida@rockbox.org> | 2010-06-05 10:30:08 +0000 |
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committer | Yoshihisa Uchida <uchida@rockbox.org> | 2010-06-05 10:30:08 +0000 |
commit | fdba8404503af0448586615330a7b27f2ced531c (patch) | |
tree | bb15677a7a720675ac2666f11e62042f3b2639ad /apps/plugins/text_viewer/tv_text_reader.c | |
parent | 991e92fd3dc15f1e365761264c26305559ddb0a4 (diff) | |
download | rockbox-fdba8404503af0448586615330a7b27f2ced531c.tar.gz rockbox-fdba8404503af0448586615330a7b27f2ced531c.zip |
reworks text viewer plugin. (FS#11209)
new text viewer plugin: text_viewer.rock.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26571 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/plugins/text_viewer/tv_text_reader.c')
-rw-r--r-- | apps/plugins/text_viewer/tv_text_reader.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/apps/plugins/text_viewer/tv_text_reader.c b/apps/plugins/text_viewer/tv_text_reader.c new file mode 100644 index 0000000000..28cfa565c3 --- /dev/null +++ b/apps/plugins/text_viewer/tv_text_reader.c | |||
@@ -0,0 +1,91 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2002 Gilles Roux | ||
11 | * 2003 Garrett Derner | ||
12 | * 2010 Yoshihisa Uchida | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or | ||
15 | * modify it under the terms of the GNU General Public License | ||
16 | * as published by the Free Software Foundation; either version 2 | ||
17 | * of the License, or (at your option) any later version. | ||
18 | * | ||
19 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
20 | * KIND, either express or implied. | ||
21 | * | ||
22 | ****************************************************************************/ | ||
23 | #include "plugin.h" | ||
24 | #include "tv_pager.h" | ||
25 | #include "tv_reader.h" | ||
26 | #include "tv_text_processor.h" | ||
27 | #include "tv_text_reader.h" | ||
28 | |||
29 | static int get_block; | ||
30 | static bool get_double_blocks; | ||
31 | |||
32 | bool tv_init_text_reader(unsigned char *buf, size_t bufsize, size_t *used_size) | ||
33 | { | ||
34 | size_t size; | ||
35 | |||
36 | if (!tv_init_text_processor(buf, bufsize, used_size)) | ||
37 | return false; | ||
38 | |||
39 | size = *used_size; | ||
40 | if (!tv_init_pager(buf + size, bufsize - size, used_size)) | ||
41 | return false; | ||
42 | |||
43 | *used_size += size; | ||
44 | return true; | ||
45 | } | ||
46 | |||
47 | void tv_finalize_text_reader(void) | ||
48 | { | ||
49 | tv_finalize_pager(); | ||
50 | } | ||
51 | |||
52 | void tv_set_read_conditions(int blocks, int width) | ||
53 | { | ||
54 | tv_set_creation_conditions(blocks, width); | ||
55 | } | ||
56 | |||
57 | off_t tv_get_total_text_size(void) | ||
58 | { | ||
59 | return tv_get_file_size(); | ||
60 | } | ||
61 | |||
62 | bool tv_get_next_line(const unsigned char **buf) | ||
63 | { | ||
64 | ssize_t bufsize; | ||
65 | const unsigned char *buffer = tv_get_buffer(&bufsize); | ||
66 | |||
67 | if (bufsize > 0) | ||
68 | { | ||
69 | tv_move_next_line( | ||
70 | tv_create_formed_text(buffer, bufsize, get_block, get_double_blocks, buf)); | ||
71 | return true; | ||
72 | } | ||
73 | return false; | ||
74 | } | ||
75 | |||
76 | void tv_read_start(int block, bool is_multi) | ||
77 | { | ||
78 | get_block = block; | ||
79 | get_double_blocks = is_multi; | ||
80 | tv_reset_line_positions(); | ||
81 | } | ||
82 | |||
83 | int tv_read_end(void) | ||
84 | { | ||
85 | return tv_get_line_positions(0); | ||
86 | } | ||
87 | |||
88 | void tv_seek_top(void) | ||
89 | { | ||
90 | tv_move_screen(0, 0, SEEK_SET); | ||
91 | } | ||