To get this branch, use:
bzr branch
http://bzr.ed.am/elec/propeller-clock
« back to all changes in this revision
Viewing changes to src/text.cc
- browse files at revision 51
- compare with another revision
- download diff
- download tarball
- view history from revision 51
- Committer: edam
- Date: 2012-02-23 00:25:08 UTC
- Revision ID: edam@waxworlds.org-20120223002508-u4lghz4rb7vbr4ou
only one led comes on
- files added:
- src/util/Bounce.cpp
- files removed:
- src/analogue_clock_mode.cc
- files renamed:
- src/propeller-clock.cc => src/propeller-clock.ino
- files modified:
- .bzrignore
- src/Makefile
added
removed
src/text.cc
1
/*
2
* text.cc
3
*
4
* Copyright (C) 2011 Tim Marston <tim@ed.am> and Dan Marston.
5
*
6
* This file is part of propeller-clock (hereafter referred to as "this
7
* program"). See http://ed.am/dev/software/arduino/propeller-clock for more
8
* information.
9
*
10
* This program is free software: you can redistribute it and/or modify
11
* it under the terms of the GNU Lesser General Public License as published
12
* by the Free Software Foundation, either version 3 of the License, or
13
* (at your option) any later version.
14
*
15
* This program is distributed in the hope that it will be useful,
16
* but WITHOUT ANY WARRANTY; without even the implied warranty of
17
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18
* GNU Lesser General Public License for more details.
19
*
20
* You should have received a copy of the GNU Lesser General Public License
21
* along with this program. If not, see <http://www.gnu.org/licenses/>.
22
*/
23
#include "text.h"
24
#include "text_renderer.h"
25
#include "config.h"
26
#include "Arduino.h"
27
#include <avr/pgmspace.h>
28
#include "display.h"
29
30
31
// the buffer for the message
32
char Text::_messages[ NUM_MESSAGE_BUFFERS ][ MESSAGE_BUFFER_LEN ];
33
34
// message buffer lengths
35
static int _message_lens[ NUM_MESSAGE_BUFFERS ];
36
37
// the mode that each message represents
38
static char _message_modes[ NUM_MESSAGE_BUFFERS ];
39
40
// mode-specific message parameters
41
static signed long _message_params[ NUM_MESSAGE_BUFFERS ];
42
43
// time last frame
44
static unsigned long _last_millis;
45
46
// duration last frame (in case we can't calculate it this frame!)
47
static unsigned long _duration;
48
49
// recalculate message params, based on _duration
50
static bool _do_draw_reset;
51
52
53
void reset_message_param( int message_num )
54
{
55
if( _message_modes[ message_num ] & Text::MODE_HSCROLL )
56
{
57
switch( _message_modes[ message_num ] & 0x1c )
58
{
59
case Text::MODE_ONEQUARTER:
60
_message_params[ message_num ] = -NUM_SEGMENTS / 4; break;
61
case Text::MODE_ONETHIRD:
62
_message_params[ message_num ] = -NUM_SEGMENTS / 3; break;
63
case Text::MODE_HALF:
64
_message_params[ message_num ] = -NUM_SEGMENTS / 2; break;
65
case Text::MODE_TWOTHIRDS:
66
_message_params[ message_num ] = -NUM_SEGMENTS * 2 / 3; break;
67
case Text::MODE_THREEQUARTERS:
68
_message_params[ message_num ] = -NUM_SEGMENTS * 3 / 4; break;
69
case Text::MODE_ALL:
70
_message_params[ message_num ] = -NUM_SEGMENTS; break;
71
}
72
}
73
else
74
{
75
switch( _message_modes[ message_num ] & 0x1c )
76
{
77
case Text::MODE_ONEQUARTER:
78
_message_params[ message_num ] = NUM_SEGMENTS / 4; break;
79
case Text::MODE_ONETHIRD:
80
_message_params[ message_num ] = NUM_SEGMENTS / 3; break;
81
case Text::MODE_HALF:
82
_message_params[ message_num ] = NUM_SEGMENTS / 2; break;
83
case Text::MODE_TWOTHIRDS:
84
_message_params[ message_num ] = NUM_SEGMENTS * 2 / 3; break;
85
case Text::MODE_THREEQUARTERS:
86
_message_params[ message_num ] = NUM_SEGMENTS * 3 / 4; break;
87
case Text::MODE_ALL:
88
_message_params[ message_num ] = NUM_SEGMENTS; break;
89
}
90
_message_params[ message_num ] = -( _message_params[ message_num ] -
91
TextRenderer::get_width( _message_lens[ message_num ] ) ) / 2;
92
}
93
}
94
95
96
void Text::set_message( int message_num, PString &pstring )
97
{
98
// update message
99
_message_lens[ message_num ] = pstring.length();
100
}
101
102
103
void Text::reset_message( int message_num, char mode )
104
{
105
_message_modes[ message_num ] = mode;
106
reset_message_param( message_num );
107
}
108
109
110
void Text::reset()
111
{
112
// reset renderer
113
_duration = 0;
114
_last_millis = ::millis();
115
_do_draw_reset = false;
116
117
// reset the text renderer's output buffer
118
TextRenderer::reset_buffer();
119
}
120
121
122
void Text::draw_reset()
123
{
124
// how many milliseconds have elapsed since last frame?
125
unsigned long millis = ::millis();
126
if( millis > _last_millis )
127
_duration = millis - _last_millis;
128
_last_millis = millis;
129
130
_do_draw_reset = true;
131
}
132
133
134
void Text::draw( int message_num, int segment )
135
{
136
// perform a mid-frame reset, as necessary
137
if( _do_draw_reset && segment > NUM_SEGMENTS / 2 ) {
138
_do_draw_reset = false;
139
140
if( _message_modes[ message_num ] & MODE_HSCROLL )
141
{
142
// add to horizontal scroll position
143
_message_params[ message_num ] +=
144
_duration * TEXT_SCROLL_SPEED / 1000;
145
long excess = _message_params[ message_num ] -
146
TextRenderer::get_width( _message_lens[ message_num ] );
147
if( excess >= 0 ) {
148
reset_message_param( message_num );
149
_message_params[ message_num ] += excess;
150
}
151
}
152
}
153
154
// calculate the width
155
int width;
156
switch( _message_modes[ message_num ] & 0x1c )
157
{
158
case MODE_ONEQUARTER:
159
width = NUM_SEGMENTS / 4;
160
break;
161
case MODE_ONETHIRD:
162
width = NUM_SEGMENTS / 3;
163
break;
164
case MODE_HALF:
165
width = NUM_SEGMENTS / 2;
166
break;
167
case MODE_TWOTHIRDS:
168
width = NUM_SEGMENTS * 2 / 3;
169
break;
170
case MODE_THREEQUARTERS:
171
width = NUM_SEGMENTS * 3 / 4;
172
break;
173
case MODE_ALL:
174
width = NUM_SEGMENTS;
175
break;
176
}
177
178
// convert segment to display-space
179
switch( _message_modes[ message_num ] & 0x03 )
180
{
181
case MODE_TOP:
182
if( segment < width / 2 )
183
segment += width / 2;
184
else if( segment >= NUM_SEGMENTS - width / 2 )
185
segment -= ( NUM_SEGMENTS - width / 2 );
186
else
187
return;
188
break;
189
case MODE_BOTTOM:
190
if( segment > ( NUM_SEGMENTS - width ) / 2 &&
191
segment < ( NUM_SEGMENTS - width ) / 2 + width )
192
{
193
segment = width - ( segment - ( NUM_SEGMENTS - width ) / 2 );
194
}
195
else
196
return;
197
break;
198
}
199
200
// render
201
TextRenderer::render(
202
_messages[ message_num ], _message_lens[ message_num ],
203
(long)segment + _message_params[ message_num ],
204
( _message_modes[ message_num ] & 1 ) == 0, 0 );
205
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0