diff options
Diffstat (limited to 'apps/plugins/text_viewer/tv_action.c')
-rw-r--r-- | apps/plugins/text_viewer/tv_action.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/apps/plugins/text_viewer/tv_action.c b/apps/plugins/text_viewer/tv_action.c new file mode 100644 index 0000000000..fb7fdb40e6 --- /dev/null +++ b/apps/plugins/text_viewer/tv_action.c | |||
@@ -0,0 +1,186 @@ | |||
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_action.h" | ||
25 | #include "tv_bookmark.h" | ||
26 | #include "tv_pager.h" | ||
27 | #include "tv_screen_pos.h" | ||
28 | #include "tv_settings.h" | ||
29 | #include "tv_window.h" | ||
30 | |||
31 | static const struct tv_preferences *prefs; | ||
32 | |||
33 | bool tv_init(const unsigned char *file) | ||
34 | { | ||
35 | size_t req_size = 0; | ||
36 | size_t size; | ||
37 | size_t used_size; | ||
38 | unsigned char *buffer; | ||
39 | |||
40 | /* get the plugin buffer */ | ||
41 | buffer = rb->plugin_get_buffer(&req_size); | ||
42 | size = req_size; | ||
43 | if (buffer == NULL || size == 0) | ||
44 | return false; | ||
45 | |||
46 | prefs = tv_get_preferences(); | ||
47 | |||
48 | tv_init_bookmark(); | ||
49 | |||
50 | /* initialize modules */ | ||
51 | if (!tv_init_window(buffer, size, &used_size)) | ||
52 | return false; | ||
53 | |||
54 | /* load the preferences and bookmark */ | ||
55 | tv_load_settings(file); | ||
56 | |||
57 | /* select to read the page */ | ||
58 | tv_select_bookmark(); | ||
59 | return true; | ||
60 | } | ||
61 | |||
62 | void tv_exit(void *parameter) | ||
63 | { | ||
64 | (void)parameter; | ||
65 | |||
66 | /* save preference and bookmarks */ | ||
67 | if (!tv_save_settings()) | ||
68 | rb->splash(HZ, "Can't save preferences and bookmarks"); | ||
69 | |||
70 | /* finalize modules */ | ||
71 | tv_finalize_window(); | ||
72 | } | ||
73 | |||
74 | void tv_draw(void) | ||
75 | { | ||
76 | struct tv_screen_pos pos; | ||
77 | |||
78 | tv_copy_screen_pos(&pos); | ||
79 | tv_draw_window(); | ||
80 | if (pos.line == 0) | ||
81 | tv_new_page(); | ||
82 | |||
83 | tv_move_screen(pos.page, pos.line, SEEK_SET); | ||
84 | } | ||
85 | |||
86 | void tv_scroll_up(enum tv_vertical_scroll_mode mode) | ||
87 | { | ||
88 | int offset_page = 0; | ||
89 | int offset_line = -1; | ||
90 | |||
91 | if ((mode == TV_VERTICAL_SCROLL_PAGE) || | ||
92 | (mode == TV_VERTICAL_SCROLL_PREFS && prefs->scroll_mode == PAGE)) | ||
93 | { | ||
94 | offset_page--; | ||
95 | #ifdef HAVE_LCD_BITMAP | ||
96 | offset_line = (prefs->page_mode == OVERLAP)? 1:0; | ||
97 | #endif | ||
98 | } | ||
99 | tv_move_screen(offset_page, offset_line, SEEK_CUR); | ||
100 | } | ||
101 | |||
102 | void tv_scroll_down(enum tv_vertical_scroll_mode mode) | ||
103 | { | ||
104 | int offset_page = 0; | ||
105 | int offset_line = 1; | ||
106 | |||
107 | if ((mode == TV_VERTICAL_SCROLL_PAGE) || | ||
108 | (mode == TV_VERTICAL_SCROLL_PREFS && prefs->scroll_mode == PAGE)) | ||
109 | { | ||
110 | offset_page++; | ||
111 | #ifdef HAVE_LCD_BITMAP | ||
112 | offset_line = (prefs->page_mode == OVERLAP)? -1:0; | ||
113 | #endif | ||
114 | } | ||
115 | tv_move_screen(offset_page, offset_line, SEEK_CUR); | ||
116 | } | ||
117 | |||
118 | void tv_scroll_left(enum tv_horizontal_scroll_mode mode) | ||
119 | { | ||
120 | int offset_window = 0; | ||
121 | int offset_column = 0; | ||
122 | |||
123 | if (mode == TV_HORIZONTAL_SCROLL_COLUMN) | ||
124 | { | ||
125 | /* Scroll left one column */ | ||
126 | offset_column--; | ||
127 | } | ||
128 | else | ||
129 | { | ||
130 | /* Scroll left one window */ | ||
131 | offset_window--; | ||
132 | } | ||
133 | tv_move_window(offset_window, offset_column); | ||
134 | } | ||
135 | |||
136 | void tv_scroll_right(enum tv_horizontal_scroll_mode mode) | ||
137 | { | ||
138 | int offset_window = 0; | ||
139 | int offset_column = 0; | ||
140 | |||
141 | if (mode == TV_HORIZONTAL_SCROLL_COLUMN) | ||
142 | { | ||
143 | /* Scroll right one column */ | ||
144 | offset_column++; | ||
145 | } | ||
146 | else | ||
147 | { | ||
148 | /* Scroll right one window */ | ||
149 | offset_window++; | ||
150 | } | ||
151 | tv_move_window(offset_window, offset_column); | ||
152 | } | ||
153 | |||
154 | void tv_top(void) | ||
155 | { | ||
156 | tv_move_screen(0, 0, SEEK_SET); | ||
157 | } | ||
158 | |||
159 | void tv_bottom(void) | ||
160 | { | ||
161 | tv_move_screen(0, 0, SEEK_END); | ||
162 | if (prefs->scroll_mode == PAGE) | ||
163 | tv_move_screen(0, -tv_get_screen_pos()->line, SEEK_CUR); | ||
164 | } | ||
165 | |||
166 | enum tv_menu_result tv_menu(void) | ||
167 | { | ||
168 | enum tv_menu_result res; | ||
169 | struct tv_screen_pos cur_pos; | ||
170 | off_t cur_file_pos = tv_get_screen_pos()->file_pos; | ||
171 | |||
172 | res = tv_display_menu(); | ||
173 | |||
174 | tv_convert_fpos(cur_file_pos, &cur_pos); | ||
175 | if (prefs->scroll_mode == PAGE) | ||
176 | cur_pos.line = 0; | ||
177 | |||
178 | tv_move_screen(cur_pos.page, cur_pos.line, SEEK_SET); | ||
179 | |||
180 | return res; | ||
181 | } | ||
182 | |||
183 | void tv_add_or_remove_bookmark(void) | ||
184 | { | ||
185 | tv_toggle_bookmark(); | ||
186 | } | ||