/elec/propeller-clock : revision 60

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/*

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* text_renderer.cc

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*

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*

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* This file is part of propeller-clock (hereafter referred to as "this

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* program"). See http://ed.am/dev/software/arduino/propeller-clock for more

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* information.

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*

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* This program is free software: you can redistribute it and/or modify

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* it under the terms of the GNU Lesser General Public License as published

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* by the Free Software Foundation, either version 3 of the License, or

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* (at your option) any later version.

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*

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* This program is distributed in the hope that it will be useful,

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* but WITHOUT ANY WARRANTY; without even the implied warranty of

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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

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* GNU Lesser General Public License for more details.

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*

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* You should have received a copy of the GNU Lesser General Public License

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* along with this program. If not, see <http://www.gnu.org/licenses/>.

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*/

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#include "text_renderer.h"

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#include "config.h"

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#include "Arduino.h"

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#include <avr/pgmspace.h>

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#include "display.h"

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#define MAX_MESSAGE_LENGTH 64

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// the buffer for the message

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static char _message_buffer[ MAX_MESSAGE_LENGTH ];

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// the current message

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static PString _message( _message_buffer, sizeof( _message_buffer ) );

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// cached glyph

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static char _glyph_cache[ 8 ];

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// the character the current cached glyph is for

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static char _glyph_cache_char;

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// selected font

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static int _font = 0;

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// time last frame

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static unsigned long _last_millis;

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// duration last frame (in case we can't calculate it this frame!)

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static unsigned long _duration;

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// scroll position (in segments )

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static signed long _scroll;

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// cache a glyph

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void cache_glyph( char c )

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{

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static char fonts[][ 66 * 8 ] PROGMEM = {

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{ // INVD-A

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0x00, 0x7c, 0x7e, 0x12, 0x12, 0x12, 0x7e, 0x7c, // A

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0x00, 0x7e, 0x7e, 0x4a, 0x4a, 0x4a, 0x7e, 0x34, // B

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0x00, 0x3c, 0x7e, 0x42, 0x42, 0x42, 0x66, 0x24, // C

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0x00, 0x7e, 0x7e, 0x42, 0x42, 0x66, 0x3c, 0x18, // D

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0x00, 0x7e, 0x7e, 0x4a, 0x4a, 0x4a, 0x42, 0x00, // E

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0x00, 0x7e, 0x7e, 0x0a, 0x0a, 0x0a, 0x02, 0x00, // F

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0x00, 0x3c, 0x7e, 0x42, 0x52, 0x52, 0x76, 0x34, // G

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0x00, 0x7e, 0x7e, 0x08, 0x08, 0x08, 0x7e, 0x7e, // H

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0x00, 0x42, 0x42, 0x7e, 0x7e, 0x42, 0x42, 0x00, // I

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0x00, 0x30, 0x70, 0x40, 0x40, 0x40, 0x7e, 0x3e, // J

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0x00, 0x7e, 0x7e, 0x08, 0x1c, 0x36, 0x62, 0x40, // K

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0x00, 0x7e, 0x7e, 0x40, 0x40, 0x40, 0x40, 0x00, // L

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0x00, 0x7e, 0x7e, 0x0c, 0x18, 0x0c, 0x7e, 0x7e, // M

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0x00, 0x7e, 0x7e, 0x0c, 0x18, 0x30, 0x7e, 0x7e, // N

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0x00, 0x3c, 0x7e, 0x42, 0x42, 0x42, 0x7e, 0x3c, // O

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0x00, 0x7e, 0x7e, 0x12, 0x12, 0x12, 0x1e, 0x0c, // P

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0x00, 0x3c, 0x7e, 0x52, 0x52, 0x62, 0x7e, 0x3c, // Q

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0x00, 0x7e, 0x7e, 0x12, 0x12, 0x32, 0x7e, 0x4c, // R

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0x00, 0x24, 0x6e, 0x4a, 0x4a, 0x4a, 0x7a, 0x30, // S

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0x00, 0x02, 0x02, 0x7e, 0x7e, 0x02, 0x02, 0x00, // T

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0x00, 0x3e, 0x7e, 0x40, 0x40, 0x40, 0x7e, 0x3e, // U

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0x00, 0x1e, 0x3e, 0x60, 0x40, 0x60, 0x3e, 0x1e, // V

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0x00, 0x3e, 0x7e, 0x60, 0x30, 0x60, 0x7e, 0x3e, // W

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0x00, 0x42, 0x66, 0x3c, 0x18, 0x3c, 0x66, 0x42, // X

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0x02, 0x06, 0x0c, 0x78, 0x78, 0x0c, 0x06, 0x02, // Y

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0x00, 0x42, 0x62, 0x72, 0x5a, 0x4e, 0x46, 0x42, // Z

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0x00, 0x20, 0x74, 0x54, 0x54, 0x7c, 0x78, 0x00, // a

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0x00, 0x00, 0x7e, 0x7e, 0x48, 0x48, 0x78, 0x30, // b

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0x00, 0x00, 0x38, 0x7c, 0x44, 0x44, 0x00, 0x00, // c

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0x00, 0x30, 0x78, 0x48, 0x48, 0x7e, 0x7e, 0x00, // d

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0x00, 0x38, 0x7c, 0x54, 0x54, 0x5c, 0x08, 0x00, // e

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0x00, 0x00, 0x7c, 0x7e, 0x0a, 0x02, 0x00, 0x00, // f

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0x00, 0x18, 0xbc, 0xa4, 0xa4, 0xfc, 0x7c, 0x00, // g

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0x00, 0x7e, 0x7e, 0x08, 0x08, 0x78, 0x70, 0x00, // h

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0x00, 0x00, 0x48, 0x7a, 0x7a, 0x40, 0x00, 0x00, // i

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0x00, 0x00, 0x40, 0xc0, 0x80, 0xfa, 0x7a, 0x00, // j

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0x00, 0x00, 0x7e, 0x7e, 0x10, 0x3c, 0x64, 0x40, // k

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0x00, 0x00, 0x00, 0x3e, 0x7e, 0x40, 0x40, 0x00, // l

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0x7c, 0x7c, 0x04, 0x78, 0x7c, 0x04, 0x7c, 0x78, // m

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0x00, 0x7c, 0x7c, 0x04, 0x04, 0x7c, 0x78, 0x00, // n

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0x00, 0x38, 0x7c, 0x44, 0x44, 0x7c, 0x38, 0x00, // o

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0x00, 0xfc, 0xfc, 0x24, 0x24, 0x3c, 0x18, 0x00, // p

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0x00, 0x18, 0x3c, 0x24, 0x24, 0xfc, 0xfc, 0x80, // q

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0x00, 0x00, 0x78, 0x7c, 0x04, 0x04, 0x00, 0x00, // r

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0x00, 0x48, 0x5c, 0x54, 0x54, 0x74, 0x20, 0x00, // s

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0x00, 0x04, 0x3e, 0x7e, 0x44, 0x44, 0x00, 0x00, // t

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0x00, 0x3c, 0x7c, 0x40, 0x40, 0x7c, 0x3c, 0x00, // u

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0x00, 0x0c, 0x3c, 0x70, 0x60, 0x3c, 0x0c, 0x00, // v

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0x3c, 0x7c, 0x40, 0x30, 0x40, 0x7c, 0x3c, 0x00, // w

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0x00, 0x44, 0x6c, 0x38, 0x38, 0x6c, 0x44, 0x00, // x

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0x00, 0x1c, 0xbc, 0xa0, 0xa0, 0xfc, 0x7c, 0x00, // y

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0x00, 0x44, 0x64, 0x74, 0x5c, 0x4c, 0x44, 0x00, // z

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0x00, 0x3c, 0x7e, 0x52, 0x4a, 0x46, 0x7e, 0x3c, // 0

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0x00, 0x00, 0x44, 0x44, 0x7e, 0x7e, 0x40, 0x40, // 1

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0x00, 0x64, 0x76, 0x52, 0x52, 0x52, 0x5e, 0x4c, // 2

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0x00, 0x24, 0x66, 0x42, 0x4a, 0x4a, 0x7e, 0x34, // 3

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0x00, 0x30, 0x28, 0x24, 0x7e, 0x7e, 0x20, 0x20, // 4

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0x00, 0x2e, 0x6e, 0x4a, 0x4a, 0x4a, 0x7a, 0x32, // 5

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0x00, 0x3c, 0x7e, 0x4a, 0x4a, 0x4a, 0x7a, 0x30, // 6

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0x00, 0x02, 0x02, 0x62, 0x72, 0x1a, 0x0e, 0x06, // 7

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0x00, 0x34, 0x7e, 0x4a, 0x4a, 0x4a, 0x7e, 0x34, // 8

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0x00, 0x0c, 0x5e, 0x52, 0x52, 0x52, 0x7e, 0x3c, // 9

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0x00, 0x00, 0x10, 0x10, 0x10, 0x10, 0x10, 0x00, // -

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0x00, 0x00, 0x00, 0x6c, 0x6c, 0x00, 0x00, 0x00, // :

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0x00, 0x00, 0x00, 0x60, 0x60, 0x00, 0x00, 0x00, // .

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0x00, 0x00, 0x00, 0x80, 0xe0, 0x60, 0x00, 0x00, // ,

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}, { // INVD-D

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0x00, 0x7f, 0x7f, 0x09, 0x09, 0x09, 0x7f, 0x7f, // A

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0x00, 0x7f, 0x7f, 0x49, 0x49, 0x49, 0x7f, 0x77, // B

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0x00, 0x7f, 0x7f, 0x41, 0x41, 0x41, 0x77, 0x77, // C

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0x00, 0x7f, 0x7f, 0x41, 0x41, 0x41, 0x7f, 0x3e, // D

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0x00, 0x7f, 0x7f, 0x49, 0x49, 0x49, 0x63, 0x63, // E

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0x00, 0x7f, 0x7f, 0x09, 0x09, 0x09, 0x03, 0x03, // F

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0x00, 0x7f, 0x7f, 0x41, 0x49, 0x49, 0x7b, 0x7b, // G

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0x00, 0x7f, 0x7f, 0x08, 0x08, 0x08, 0x7f, 0x7f, // H

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0x00, 0x41, 0x41, 0x7f, 0x7f, 0x41, 0x41, 0x00, // I

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0x00, 0x60, 0x60, 0x40, 0x40, 0x40, 0x7f, 0x7f, // J

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0x00, 0x7f, 0x7f, 0x08, 0x08, 0x08, 0x7f, 0x77, // K

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0x00, 0x7f, 0x7f, 0x40, 0x40, 0x40, 0x60, 0x60, // L

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0x00, 0x7f, 0x7f, 0x02, 0x04, 0x02, 0x7f, 0x7f, // M

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0x00, 0x7f, 0x7f, 0x06, 0x0c, 0x18, 0x7f, 0x7f, // N

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0x00, 0x7f, 0x7f, 0x41, 0x41, 0x41, 0x7f, 0x7f, // O

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0x00, 0x7f, 0x7f, 0x09, 0x09, 0x09, 0x0f, 0x0f, // P

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0x00, 0x7f, 0x7f, 0x41, 0x51, 0x21, 0x7f, 0x7f, // Q

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0x00, 0x7f, 0x7f, 0x09, 0x09, 0x09, 0x7f, 0x77, // R

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0x00, 0x6f, 0x6f, 0x49, 0x49, 0x49, 0x7b, 0x7b, // S

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0x00, 0x01, 0x01, 0x7f, 0x7f, 0x01, 0x01, 0x00, // T

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0x00, 0x7f, 0x7f, 0x40, 0x40, 0x40, 0x7f, 0x7f, // U

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0x00, 0x1f, 0x3f, 0x60, 0x40, 0x60, 0x3f, 0x1f, // V

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0x00, 0x7f, 0x7f, 0x20, 0x10, 0x20, 0x7f, 0x7f, // W

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0x00, 0x77, 0x7f, 0x08, 0x08, 0x08, 0x7f, 0x77, // X

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0x00, 0x6f, 0x6f, 0x48, 0x48, 0x48, 0x7f, 0x7f, // Y

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0x00, 0x63, 0x73, 0x59, 0x4d, 0x47, 0x63, 0x61, // Z

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0x00, 0x74, 0x74, 0x54, 0x54, 0x7c, 0x7c, 0x00, // a

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0x00, 0x7f, 0x7f, 0x44, 0x44, 0x7c, 0x7c, 0x00, // b

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0x00, 0x7c, 0x7c, 0x44, 0x44, 0x6c, 0x6c, 0x00, // c

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0x00, 0x7c, 0x7c, 0x44, 0x44, 0x7f, 0x7f, 0x00, // d

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0x00, 0x7c, 0x7c, 0x54, 0x54, 0x5c, 0x5c, 0x00, // e

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0x00, 0x00, 0x04, 0x7f, 0x7f, 0x05, 0x05, 0x01, // f

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0x00, 0xbc, 0xbc, 0xa4, 0xa4, 0xfc, 0xfc, 0x00, // g

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0x00, 0x7f, 0x7f, 0x04, 0x04, 0x7c, 0x7c, 0x00, // h

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0x00, 0x44, 0x44, 0x7d, 0x7d, 0x40, 0x40, 0x00, // i

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0x00, 0x80, 0x80, 0xfd, 0xfd, 0x00, 0x00, 0x00, // j

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0x00, 0x7f, 0x7f, 0x10, 0x10, 0x7c, 0x6c, 0x00, // k

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0x00, 0x00, 0x00, 0x7f, 0x7f, 0x40, 0x40, 0x00, // l

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0x00, 0x7c, 0x7c, 0x04, 0x7c, 0x04, 0x7c, 0x7c, // m

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0x00, 0x7c, 0x7c, 0x04, 0x04, 0x7c, 0x7c, 0x00, // n

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0x00, 0x7c, 0x7c, 0x44, 0x44, 0x7c, 0x7c, 0x00, // o

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0x00, 0xfc, 0xfc, 0x24, 0x24, 0x3c, 0x3c, 0x00, // p

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0x00, 0x3c, 0x3c, 0x24, 0x24, 0xfc, 0xfc, 0x00, // q

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0x00, 0x7c, 0x7c, 0x04, 0x04, 0x0c, 0x0c, 0x00, // r

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0x00, 0x5c, 0x5c, 0x54, 0x54, 0x74, 0x74, 0x00, // s

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0x00, 0x00, 0x04, 0x7f, 0x7f, 0x44, 0x44, 0x00, // t

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0x00, 0x7c, 0x7c, 0x40, 0x40, 0x7c, 0x7c, 0x00, // u

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0x00, 0x1c, 0x3c, 0x60, 0x60, 0x3c, 0x1c, 0x00, // v

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0x00, 0x7c, 0x7c, 0x40, 0x7c, 0x40, 0x7c, 0x7c, // w

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0x00, 0x6c, 0x7c, 0x10, 0x10, 0x7c, 0x6c, 0x00, // x

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0x00, 0xbc, 0xbc, 0xa0, 0xa0, 0xfc, 0xfc, 0x00, // y

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0x00, 0x64, 0x74, 0x54, 0x54, 0x5c, 0x4c, 0x00, // z

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0x00, 0x7f, 0x7f, 0x51, 0x49, 0x45, 0x7f, 0x7f, // 0

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0x00, 0x41, 0x41, 0x7f, 0x7f, 0x40, 0x40, 0x00, // 1

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0x00, 0x7b, 0x7b, 0x49, 0x49, 0x49, 0x4f, 0x4f, // 2

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0x00, 0x63, 0x63, 0x49, 0x49, 0x49, 0x7f, 0x7f, // 3

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0x00, 0x1f, 0x1f, 0x10, 0x10, 0x7f, 0x7f, 0x10, // 4

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0x00, 0x6f, 0x6f, 0x49, 0x49, 0x49, 0x79, 0x79, // 5

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0x00, 0x7f, 0x7f, 0x49, 0x49, 0x49, 0x7b, 0x7b, // 6

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0x00, 0x03, 0x03, 0x71, 0x79, 0x0d, 0x07, 0x03, // 7

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0x00, 0x7f, 0x7f, 0x49, 0x49, 0x49, 0x7f, 0x7f, // 8

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0x00, 0x6f, 0x6f, 0x49, 0x49, 0x49, 0x7f, 0x7f, // 9

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0x00, 0x00, 0x10, 0x10, 0x10, 0x10, 0x10, 0x00, // -

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0x00, 0x00, 0x00, 0x66, 0x66, 0x00, 0x00, 0x00, // :

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0x00, 0x00, 0x00, 0x60, 0x60, 0x00, 0x00, 0x00, // .

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0x00, 0x00, 0x80, 0xe0, 0x60, 0x00, 0x00, 0x00, // ,

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}, { // INVD-G

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0x7c, 0x7e, 0x22, 0x7e, 0x7e, 0x7e, 0x7c, 0x00, // A

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0x7c, 0x7e, 0x7e, 0x7e, 0x4a, 0x7e, 0x34, 0x00, // B

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0x3c, 0x7e, 0x7e, 0x7e, 0x42, 0x76, 0x34, 0x00, // C

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0x7c, 0x7e, 0x7e, 0x7e, 0x42, 0x7e, 0x3c, 0x00, // D

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0x3c, 0x7e, 0x7e, 0x7e, 0x4a, 0x4a, 0x00, 0x00, // E

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0x7c, 0x7e, 0x7e, 0x7e, 0x12, 0x12, 0x00, 0x00, // F

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0x3c, 0x7e, 0x7e, 0x7e, 0x52, 0x76, 0x34, 0x00, // G

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0x7e, 0x7e, 0x7e, 0x7e, 0x08, 0x7e, 0x7e, 0x00, // H

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0x00, 0x42, 0x7e, 0x7e, 0x7e, 0x7e, 0x42, 0x00, // I

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0x30, 0x70, 0x42, 0x7e, 0x7e, 0x7e, 0x3e, 0x00, // J

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0x7e, 0x7e, 0x7e, 0x7e, 0x08, 0x76, 0x62, 0x00, // K

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0x00, 0x3e, 0x7e, 0x7e, 0x7e, 0x40, 0x40, 0x00, // L

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0x7e, 0x7e, 0x7e, 0x7c, 0x08, 0x7c, 0x7e, 0x00, // M

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0x7e, 0x7e, 0x7e, 0x7c, 0x08, 0x7e, 0x7e, 0x00, // N

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0x3c, 0x7e, 0x7e, 0x7e, 0x42, 0x7e, 0x3c, 0x00, // O

212

0x7c, 0x7e, 0x7e, 0x7e, 0x12, 0x1e, 0x0c, 0x00, // P

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0x3c, 0x7e, 0x7e, 0x7e, 0x42, 0xfe, 0xbc, 0x00, // Q

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0x7c, 0x7e, 0x7e, 0x7e, 0x12, 0x7e, 0x6c, 0x00, // R

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0x24, 0x6e, 0x5e, 0x7e, 0x7a, 0x76, 0x24, 0x00, // S

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0x00, 0x02, 0x7e, 0x7e, 0x7e, 0x7e, 0x02, 0x00, // T

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0x3e, 0x7e, 0x7e, 0x7e, 0x40, 0x7e, 0x3e, 0x00, // U

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0x1e, 0x3e, 0x7e, 0x7e, 0x40, 0x3e, 0x1e, 0x00, // V

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0x3e, 0x7e, 0x7e, 0x7e, 0x20, 0x7e, 0x3e, 0x00, // W

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0x42, 0x66, 0x3e, 0x7e, 0x7c, 0x66, 0x42, 0x00, // X

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0x06, 0x0e, 0x7e, 0x7e, 0x70, 0x0e, 0x06, 0x00, // Y

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0x62, 0x72, 0x7a, 0x7e, 0x5e, 0x4e, 0x46, 0x00, // Z

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0x38, 0x7c, 0x44, 0x3c, 0x7c, 0x7c, 0x78, 0x00, // a

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0x3f, 0x7f, 0x7f, 0x7f, 0x44, 0x7c, 0x38, 0x00, // b

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0x38, 0x7c, 0x7c, 0x7c, 0x44, 0x6c, 0x28, 0x00, // c

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0x38, 0x7c, 0x44, 0x3f, 0x7f, 0x7f, 0x7f, 0x00, // d

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0x38, 0x7c, 0x7c, 0x7c, 0x54, 0x5c, 0x28, 0x00, // e

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0x88, 0xfe, 0xff, 0xff, 0x7f, 0x09, 0x0a, 0x00, // f

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0x58, 0xbc, 0xa4, 0xfc, 0xfc, 0xfc, 0x78, 0x00, // g

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0x7f, 0x7f, 0x7f, 0x7f, 0x04, 0x7c, 0x78, 0x00, // h

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0x00, 0x00, 0x7a, 0x7f, 0x7f, 0x7a, 0x00, 0x00, // i

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0x00, 0x80, 0xfa, 0xff, 0xff, 0x7a, 0x00, 0x00, // j

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0x7f, 0x7f, 0x7f, 0x7f, 0x24, 0x7c, 0x58, 0x00, // k

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0x00, 0x00, 0x3f, 0x7f, 0x7f, 0x7f, 0x40, 0x00, // l

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0x78, 0x7c, 0x7c, 0x04, 0x7c, 0x04, 0x7c, 0x78, // m

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0x7c, 0x7c, 0x7c, 0x78, 0x04, 0x7c, 0x78, 0x00, // n

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0x38, 0x7c, 0x7c, 0x7c, 0x44, 0x7c, 0x38, 0x00, // o

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0xfc, 0xfc, 0xfc, 0xf8, 0x44, 0x7c, 0x38, 0x00, // p

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0x38, 0x7c, 0x44, 0xfc, 0xfc, 0xfc, 0xf8, 0x00, // q

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0x7c, 0x7c, 0x7c, 0x7c, 0x04, 0x0c, 0x08, 0x00, // r

241

0x28, 0x5c, 0x5c, 0x7c, 0x74, 0x74, 0x28, 0x00, // s

242

0x04, 0x3e, 0x7e, 0x7e, 0x7e, 0x44, 0x24, 0x00, // t

243

0x3c, 0x7c, 0x40, 0x3c, 0x7c, 0x7c, 0x7c, 0x00, // u

244

0x1c, 0x3c, 0x7c, 0x7c, 0x60, 0x3c, 0x1c, 0x00, // v

245

0x3c, 0x7c, 0x7c, 0x40, 0x7c, 0x40, 0x7c, 0x3c, // w

246

0x44, 0x6c, 0x3c, 0x7c, 0x78, 0x6c, 0x44, 0x00, // x

247

0x9c, 0xbc, 0xfc, 0xfc, 0x60, 0x3c, 0x1c, 0x00, // y

248

0x64, 0x74, 0x3c, 0x7c, 0x5c, 0x4c, 0x24, 0x00, // z

249

0x3c, 0x7e, 0x42, 0x7e, 0x7e, 0x7e, 0x3c, 0x00, // 0

250

0x00, 0x42, 0x7e, 0x7e, 0x7e, 0x7e, 0x40, 0x00, // 1

251

0x64, 0x72, 0x7a, 0x7e, 0x5e, 0x4e, 0x44, 0x00, // 2

252

0x24, 0x66, 0x4a, 0x7e, 0x7e, 0x7e, 0x34, 0x00, // 3

253

0x0e, 0x1e, 0x10, 0x7e, 0x7e, 0x7e, 0x7e, 0x00, // 4

254

0x2e, 0x6e, 0x4e, 0x7a, 0x7a, 0x7a, 0x32, 0x00, // 5

255

0x3c, 0x7e, 0x7e, 0x7e, 0x4a, 0x7a, 0x34, 0x00, // 6

256

0x02, 0x62, 0x7a, 0x7e, 0x7e, 0x1e, 0x06, 0x00, // 7

257

0x34, 0x7e, 0x4e, 0x7e, 0x7a, 0x7e, 0x34, 0x00, // 8

258

0x2c, 0x5e, 0x52, 0x7e, 0x7e, 0x7e, 0x3c, 0x00, // 9

259

0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, // -

260

0x00, 0x00, 0x28, 0x7c, 0x7c, 0x28, 0x00, 0x00, // :

261

0x00, 0x00, 0x30, 0x78, 0x78, 0x30, 0x00, 0x00, // .

262

0x00, 0x00, 0x10, 0xb8, 0xf8, 0x70, 0x00, 0x00, // ,

263

}, { // INVD-B

264

0x00, 0x78, 0x7f, 0x09, 0x09, 0x0f, 0x78, 0x00, // A

265

0x00, 0x7f, 0x79, 0x49, 0x49, 0x4f, 0x78, 0x00, // B

266

0x00, 0x7f, 0x79, 0x41, 0x41, 0x41, 0x63, 0x00, // C

267

0x00, 0x7f, 0x79, 0x41, 0x41, 0x41, 0x7f, 0x00, // D

268

0x00, 0x00, 0x7f, 0x79, 0x49, 0x49, 0x41, 0x00, // E

269

0x00, 0x00, 0x7f, 0x79, 0x09, 0x09, 0x01, 0x00, // F

270

0x00, 0x7f, 0x79, 0x41, 0x41, 0x49, 0x7b, 0x00, // G

271

0x00, 0x7f, 0x78, 0x08, 0x08, 0x08, 0x7f, 0x00, // H

272

0x00, 0x00, 0x00, 0x7f, 0x78, 0x00, 0x00, 0x00, // I

273

0x00, 0x60, 0x40, 0x40, 0x40, 0x7f, 0x78, 0x00, // J

274

0x00, 0x7f, 0x78, 0x08, 0x08, 0x0f, 0x78, 0x00, // K

275

0x00, 0x00, 0x7f, 0x78, 0x40, 0x40, 0x40, 0x00, // L

276

0x00, 0x7f, 0x79, 0x01, 0x7f, 0x01, 0x7f, 0x00, // M

277

0x00, 0x7f, 0x79, 0x01, 0x01, 0x01, 0x7f, 0x00, // N

278

0x00, 0x7f, 0x41, 0x41, 0x41, 0x43, 0x7f, 0x00, // O

279

0x00, 0x7f, 0x79, 0x09, 0x09, 0x09, 0x0f, 0x00, // P

280

0x00, 0x7f, 0x41, 0x41, 0x61, 0x61, 0x7f, 0x00, // Q

281

0x00, 0x7f, 0x79, 0x09, 0x09, 0x0f, 0x78, 0x00, // R

282

0x00, 0x6f, 0x49, 0x49, 0x49, 0x79, 0x7b, 0x00, // S

283

0x00, 0x01, 0x01, 0x7f, 0x79, 0x01, 0x01, 0x00, // T

284

0x00, 0x7f, 0x78, 0x40, 0x40, 0x40, 0x7f, 0x00, // U

285

0x00, 0x0f, 0x7f, 0x40, 0x40, 0x78, 0x0f, 0x00, // V

286

0x00, 0x7f, 0x78, 0x40, 0x7f, 0x40, 0x7f, 0x00, // W

287

0x00, 0x77, 0x78, 0x08, 0x08, 0x08, 0x77, 0x00, // X

288

0x00, 0x0f, 0x08, 0x78, 0x78, 0x08, 0x0f, 0x00, // Y

289

0x00, 0x7b, 0x79, 0x49, 0x49, 0x49, 0x6f, 0x00, // Z

290

0x00, 0x74, 0x74, 0x54, 0x54, 0x7c, 0x00, 0x00, // a

291

0x00, 0x7f, 0x74, 0x44, 0x44, 0x7c, 0x00, 0x00, // b

292

0x00, 0x7c, 0x74, 0x44, 0x44, 0x6c, 0x00, 0x00, // c

293

0x00, 0x7c, 0x74, 0x44, 0x44, 0x7f, 0x00, 0x00, // d

294

0x00, 0x7c, 0x74, 0x54, 0x54, 0x5c, 0x00, 0x00, // e

295

0x00, 0x00, 0x04, 0x7f, 0x75, 0x01, 0x00, 0x00, // f

296

0x00, 0xbc, 0xb4, 0xa4, 0xa4, 0xfc, 0x00, 0x00, // g

297

0x00, 0x7f, 0x74, 0x04, 0x04, 0x7c, 0x00, 0x00, // h

298

0x00, 0x00, 0x00, 0x7d, 0x71, 0x00, 0x00, 0x00, // i

299

0x00, 0x00, 0x80, 0xbd, 0xf1, 0x00, 0x00, 0x00, // j

300

0x00, 0x7f, 0x70, 0x10, 0x1c, 0x70, 0x00, 0x00, // k

301

0x00, 0x00, 0x00, 0x7f, 0x78, 0x00, 0x00, 0x00, // l

302

0x00, 0x7c, 0x74, 0x04, 0x7c, 0x04, 0x7c, 0x00, // m

303

0x00, 0x7c, 0x74, 0x04, 0x04, 0x7c, 0x00, 0x00, // n

304

0x00, 0x7c, 0x74, 0x44, 0x44, 0x7c, 0x00, 0x00, // o

305

0x00, 0xfc, 0x34, 0x24, 0x24, 0x3c, 0x00, 0x00, // p

306

0x00, 0x3c, 0x34, 0x24, 0x24, 0xfc, 0x00, 0x00, // q

307

0x00, 0x00, 0x7c, 0x74, 0x04, 0x04, 0x00, 0x00, // r

308

0x00, 0x5c, 0x54, 0x54, 0x74, 0x74, 0x00, 0x00, // s

309

0x00, 0x00, 0x04, 0x7f, 0x74, 0x00, 0x00, 0x00, // t

310

0x00, 0x7c, 0x70, 0x40, 0x40, 0x7c, 0x00, 0x00, // u

311

0x00, 0x1c, 0x7c, 0x40, 0x70, 0x1c, 0x00, 0x00, // v

312

0x00, 0x7c, 0x70, 0x40, 0x7c, 0x40, 0x7c, 0x00, // w

313

0x00, 0x6c, 0x70, 0x10, 0x10, 0x6c, 0x00, 0x00, // x

314

0x00, 0xbc, 0xb0, 0xa0, 0xa0, 0xfc, 0x00, 0x00, // y

315

0x00, 0x74, 0x74, 0x54, 0x54, 0x5c, 0x00, 0x00, // z

316

0x00, 0x7f, 0x41, 0x41, 0x41, 0x79, 0x7f, 0x00, // 0

317

0x00, 0x00, 0x00, 0x78, 0x7f, 0x00, 0x00, 0x00, // 1

318

0x00, 0x7b, 0x79, 0x49, 0x49, 0x49, 0x4f, 0x00, // 2

319

0x00, 0x63, 0x49, 0x49, 0x49, 0x7f, 0x78, 0x00, // 3

320

0x00, 0x1f, 0x11, 0x11, 0x71, 0x7f, 0x10, 0x00, // 4

321

0x00, 0x6f, 0x49, 0x49, 0x49, 0x79, 0x79, 0x00, // 5

322

0x00, 0x7f, 0x49, 0x49, 0x49, 0x79, 0x7b, 0x00, // 6

323

0x00, 0x01, 0x01, 0x01, 0x79, 0x7f, 0x00, 0x00, // 7

324

0x00, 0x78, 0x4f, 0x49, 0x49, 0x7f, 0x78, 0x00, // 8

325

0x00, 0x1f, 0x11, 0x11, 0x11, 0x71, 0x7f, 0x00, // 9

326

0x00, 0x00, 0x10, 0x10, 0x10, 0x10, 0x00, 0x00, // -

327

0x00, 0x00, 0x00, 0x6c, 0x6c, 0x00, 0x00, 0x00, // :

328

0x00, 0x00, 0x00, 0x60, 0x60, 0x00, 0x00, 0x00, // .

329

0x00, 0x00, 0x00, 0x60, 0xe0, 0x00, 0x00, 0x00, // ,

330

}

331

};

332

333

// nothing to do?

334

if( c == _glyph_cache_char )

335

return;

336

_glyph_cache_char = c;

337

338

// find glyph data position

339

int pos;

340

if( c >= 'A' && c <= 'Z' )

341

pos = c - 'A';

342

else if( c >= 'a' && c <= 'z' )

343

pos = c - 'a' + 26;

344

else if( c >= '0' && c <= '9' )

345

pos = c - '0' + 52;

346

else if( c == '-' )

347

pos = 62;

348

else if( c == ':' )

349

pos = 63;

350

else if( c == '.' )

351

pos = 64;

352

else if( c == ',' )

353

pos = 65;

354

else

355

pos = -1;

356

357

// space? or copy glyph from progmem?

358

if( pos == -1 )

359

memset( _glyph_cache, 0, 8 );

360

else

361

memcpy_P( _glyph_cache, &( fonts[ _font ][ pos * 8 ] ), 8 );

362

}

363

364

365

// convert segment to display-space segment

366

int xform_segment( int segment )

367

{

368

if( segment < TEXT_DISPLAY_SEGMENTS / 2 )

369

return segment + TEXT_DISPLAY_SEGMENTS / 2;

370

else if( segment >= NUM_SEGMENTS - TEXT_DISPLAY_SEGMENTS / 2 )

371

return segment - ( NUM_SEGMENTS - TEXT_DISPLAY_SEGMENTS / 2 );

372

else

373

return - 1;

374

}

375

376

377

// draw a column of pixels from the current message

378

void render( int x )

379

{

380

// handle negative x

381

if( x < 0 ) {

382

Display::leds_off();

383

return;

384

}

385

386

// scale font

387

x /= TEXT_SCALE;

388

389

// make sure the correct glyph is cached

390

int pos = x / 8;

391

cache_glyph( ( pos >= 0 && pos < (signed)_message.length() )? _message[ pos ] : ' ' );

392

393

// draw a column

394

char col_data = _glyph_cache[ x % 8 ];

395

for( int a = 0; a < 8; a++ )

396

Display::led( 8 - a, ( col_data & ( 1 << a ) )? true : false );

397

}

398

399

400

PString &TextRenderer::get_pstring()

401

{

402

// reset renderer

403

_duration = 0;

404

_last_millis = ::millis();

405

_scroll = -TEXT_DISPLAY_SEGMENTS;

406

407

return _message;

408

}

409

410

411

void TextRenderer::draw_reset()

412

{

413

// how many milliseconds have elapsed since last frame?

414

unsigned long millis = ::millis();

415

if( millis > _last_millis )

416

_duration = millis - _last_millis;

417

_last_millis = millis;

418

419

// move on scroll pos

420

_scroll += ( _duration * TEXT_SCROLL_SPEED / 1000 );

421

if( _scroll > (signed long)_message.length() * 8 * TEXT_SCALE )

422

_scroll -= (signed long)_message.length() * 8 * TEXT_SCALE + TEXT_DISPLAY_SEGMENTS;

423

}

424

425

426

void TextRenderer::draw_scroll( int segment )

427

{

428

segment = xform_segment( segment );

429

if( segment < 0 )

430

Display::leds_off();

431

else

432

render( (long)segment + _scroll );

433

}