1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Gilles Roux
* 2003 Garrett Derner
* 2010 Yoshihisa Uchida
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
#include "tv_bookmark.h"
#include "tv_display.h"
#include "tv_preferences.h"
#include "tv_screen_pos.h"
#include "tv_text_reader.h"
#include "tv_window.h"
static int window_width;
static int window_columns;
static int display_lines;
static int col_width;
static int cur_window;
static int cur_column;
#ifdef HAVE_LCD_BITMAP
static bool tv_set_font(const unsigned char *font)
{
unsigned char path[MAX_PATH];
if (font != NULL && *font != '\0')
{
rb->snprintf(path, MAX_PATH, "%s/%s.fnt", FONT_DIR, font);
if (rb->font_load(NULL, path) < 0)
{
rb->splash(HZ/2, "font load failed");
return false;
}
}
return true;
}
#endif
static void tv_draw_bookmarks(const struct tv_screen_pos *top_pos)
{
struct tv_screen_pos bookmarks[TV_MAX_BOOKMARKS];
int disp_bookmarks[TV_MAX_BOOKMARKS];
int count = tv_get_bookmark_positions(bookmarks);
int disp_count = 0;
int line;
while (count--)
{
line = (bookmarks[count].page - top_pos->page) * display_lines
+ (bookmarks[count].line - top_pos->line);
if (line >= 0 && line < display_lines)
disp_bookmarks[disp_count++] = line;
}
tv_show_bookmarks(disp_bookmarks, disp_count);
}
void tv_draw_window(void)
{
struct tv_screen_pos pos;
const unsigned char *text_buf;
int line;
int size = 0;
tv_copy_screen_pos(&pos);
tv_start_display();
tv_read_start(cur_window, (cur_column > 0));
for (line = 0; line < display_lines; line++)
{
if (!tv_get_next_line(&text_buf))
break;
tv_draw_text(line, text_buf, cur_column);
}
size = tv_read_end();
#ifdef HAVE_LCD_BITMAP
tv_show_scrollbar(cur_window, cur_column, pos.file_pos, size);
tv_show_header();
tv_show_footer(&pos);
#endif
tv_draw_bookmarks(&pos);
tv_update_display();
tv_end_display();
}
bool tv_traverse_lines(void)
{
int i;
bool res = true;
tv_read_start(0, false);
for (i = 0; i < display_lines; i++)
{
if (!tv_get_next_line(NULL))
{
res = false;
break;
}
}
tv_read_end();
return res;
}
static void tv_change_preferences(const struct tv_preferences *oldp)
{
#ifndef HAVE_LCD_BITMAP
(void)oldp;
#else
static bool font_changing = false;
const unsigned char *font_str;
bool need_vertical_scrollbar;
struct tv_preferences new_prefs;
tv_copy_preferences(&new_prefs);
font_str = (oldp && !font_changing)? oldp->font_name : rb->global_settings->font_file;
/* change font */
if (font_changing || rb->strcmp(font_str, preferences->font_name))
{
font_changing = true;
if (!tv_set_font(preferences->font_name))
{
rb->strlcpy(new_prefs.font_name, font_str, MAX_PATH);
tv_set_preferences(&new_prefs);
return;
}
}
font_changing = false;
#endif
#ifdef HAVE_LCD_BITMAP
col_width = 2 * rb->font_get_width(preferences->font, ' ');
#else
col_width = 1;
#endif
if (cur_window >= preferences->windows)
cur_window = 0;
/* change viewport */
tv_change_viewport();
#ifdef HAVE_LCD_BITMAP
need_vertical_scrollbar = false;
tv_set_layout(col_width, need_vertical_scrollbar);
tv_get_drawarea_info(&window_width, &window_columns, &display_lines);
tv_seek_top();
tv_set_read_conditions(preferences->windows, window_width);
if (tv_traverse_lines() && preferences->vertical_scrollbar)
{
need_vertical_scrollbar = true;
tv_set_layout(col_width, need_vertical_scrollbar);
tv_get_drawarea_info(&window_width, &window_columns, &display_lines);
}
tv_seek_top();
#else
tv_set_layout(col_width);
tv_get_drawarea_info(&window_width, &window_columns, &display_lines);
#endif
window_columns = window_width / col_width;
cur_column = 0;
tv_set_read_conditions(preferences->windows, window_width);
tv_init_display();
#ifdef HAVE_LCD_BITMAP
tv_init_scrollbar(tv_get_total_text_size(), need_vertical_scrollbar);
#endif
}
bool tv_init_window(unsigned char **buf, size_t *size)
{
tv_add_preferences_change_listner(tv_change_preferences);
return tv_init_text_reader(buf, size);
}
void tv_finalize_window(void)
{
tv_finalize_text_reader();
#ifdef HAVE_LCD_BITMAP
/* restore font */
if (rb->strcmp(rb->global_settings->font_file, preferences->font_name))
{
tv_set_font(rb->global_settings->font_file);
}
/* undo viewport */
tv_undo_viewport();
#endif
}
void tv_move_window(int window_delta, int column_delta)
{
cur_window += window_delta;
cur_column += column_delta;
if (cur_window < 0)
{
cur_window = 0;
cur_column = 0;
}
else if (cur_window >= preferences->windows)
{
cur_window = preferences->windows - 1;
cur_column = 0;
}
if (cur_column < 0)
{
if (cur_window == 0)
cur_column = 0;
else
{
cur_window--;
cur_column = window_columns - 1;
}
}
else
{
if (cur_window == preferences->windows - 1)
cur_column = 0;
else if (cur_column >= window_columns)
{
cur_window++;
cur_column = 0;
}
}
}
|
