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Diffstat (limited to 'demopal/lib/TVout/TVoutPrint.cpp')
| -rwxr-xr-x | demopal/lib/TVout/TVoutPrint.cpp | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/demopal/lib/TVout/TVoutPrint.cpp b/demopal/lib/TVout/TVoutPrint.cpp new file mode 100755 index 0000000..497e5a7 --- /dev/null +++ b/demopal/lib/TVout/TVoutPrint.cpp @@ -0,0 +1,380 @@ +/* +TVPrint.cpp - Base class that provides print() and println() +Copyright (c) 2008 David A. Mellis. All right reserved. + +This library is free software; you can redistribute it and/or +modify it under the terms of the GNU Lesser General Public +License as published by the Free Software Foundation; either +version 2.1 of the License, or (at your option) any later version. + +This library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public +License along with this library; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +Modified 23 November 2006 by David A. Mellis +*/ + +#include <math.h> +#include <avr/pgmspace.h> + +#include "TVout.h" + +void TVout::select_font(const unsigned char * f) { + font = f; +} + +/* + * print an 8x8 char c at x,y + * x must be a multiple of 8 + */ +void TVout::print_char(uint8_t x, uint8_t y, unsigned char c) { + + c -= pgm_read_byte(font+2); + bitmap(x,y,font,(c*pgm_read_byte(font+1))+3,pgm_read_byte(font),pgm_read_byte(font+1)); +} + +void TVout::inc_txtline() { + if (cursor_y >= (display.vres - pgm_read_byte(font+1))) + shift(pgm_read_byte(font+1),UP); + else + cursor_y += pgm_read_byte(font+1); +} + +/* default implementation: may be overridden */ +void TVout::write(const char *str) +{ + while (*str) + write(*str++); +} + +/* default implementation: may be overridden */ +void TVout::write(const uint8_t *buffer, uint8_t size) +{ + while (size--) + write(*buffer++); +} + +void TVout::write(uint8_t c) { + switch(c) { + case '\0': //null + break; + case '\n': //line feed + cursor_x = 0; + inc_txtline(); + break; + case 8: //backspace + cursor_x -= pgm_read_byte(font); + print_char(cursor_x,cursor_y,' '); + break; + case 13: //carriage return !?!?!?!VT!?!??!?! + cursor_x = 0; + break; + case 14: //form feed new page(clear screen) + //clear_screen(); + break; + default: + if (cursor_x >= (display.hres*8 - pgm_read_byte(font))) { + cursor_x = 0; + inc_txtline(); + print_char(cursor_x,cursor_y,c); + } + else + print_char(cursor_x,cursor_y,c); + cursor_x += pgm_read_byte(font); + } +} + +void TVout::print(const char str[]) +{ + write(str); +} + +void TVout::print(char c, int base) +{ + print((long) c, base); +} + +void TVout::print(unsigned char b, int base) +{ + print((unsigned long) b, base); +} + +void TVout::print(int n, int base) +{ + print((long) n, base); +} + +void TVout::print(unsigned int n, int base) +{ + print((unsigned long) n, base); +} + +void TVout::print(long n, int base) +{ + if (base == 0) { + write(n); + } else if (base == 10) { + if (n < 0) { + print('-'); + n = -n; + } + printNumber(n, 10); + } else { + printNumber(n, base); + } +} + +void TVout::print(unsigned long n, int base) +{ + if (base == 0) write(n); + else printNumber(n, base); +} + +void TVout::print(double n, int digits) +{ + printFloat(n, digits); +} + +void TVout::println(void) +{ + print('\r'); + print('\n'); +} + +void TVout::println(const char c[]) +{ + print(c); + println(); +} + +void TVout::println(char c, int base) +{ + print(c, base); + println(); +} + +void TVout::println(unsigned char b, int base) +{ + print(b, base); + println(); +} + +void TVout::println(int n, int base) +{ + print(n, base); + println(); +} + +void TVout::println(unsigned int n, int base) +{ + print(n, base); + println(); +} + +void TVout::println(long n, int base) +{ + print(n, base); + println(); +} + +void TVout::println(unsigned long n, int base) +{ + print(n, base); + println(); +} + +void TVout::println(double n, int digits) +{ + print(n, digits); + println(); +} + +void TVout::printPGM(const char str[]) { + char c; + while ((c = pgm_read_byte(str))) { + str++; + write(c); + } +} + +void TVout::printPGM(uint8_t x, uint8_t y, const char str[]) { + char c; + cursor_x = x; + cursor_y = y; + while ((c = pgm_read_byte(str))) { + str++; + write(c); + } +} + +void TVout::set_cursor(uint8_t x, uint8_t y) { + cursor_x = x; + cursor_y = y; +} + +void TVout::print(uint8_t x, uint8_t y, const char str[]) { + cursor_x = x; + cursor_y = y; + write(str); + +} +void TVout::print(uint8_t x, uint8_t y, char c, int base) { + cursor_x = x; + cursor_y = y; + print((long) c, base); +} +void TVout::print(uint8_t x, uint8_t y, unsigned char b, int base) { + cursor_x = x; + cursor_y = y; + print((unsigned long) b, base); +} +void TVout::print(uint8_t x, uint8_t y, int n, int base) { + cursor_x = x; + cursor_y = y; + print((long) n, base); +} +void TVout::print(uint8_t x, uint8_t y, unsigned int n, int base) { + cursor_x = x; + cursor_y = y; + print((unsigned long) n, base); +} +void TVout::print(uint8_t x, uint8_t y, long n, int base) { + cursor_x = x; + cursor_y = y; + print(n,base); +} +void TVout::print(uint8_t x, uint8_t y, unsigned long n, int base) { + cursor_x = x; + cursor_y = y; + print(n,base); +} +void TVout::print(uint8_t x, uint8_t y, double n, int digits) { + cursor_x = x; + cursor_y = y; + print(n,digits); +} + +void TVout::println(uint8_t x, uint8_t y, const char c[]) +{ + cursor_x = x; + cursor_y = y; + print(c); + println(); +} + +void TVout::println(uint8_t x, uint8_t y, char c, int base) +{ + cursor_x = x; + cursor_y = y; + print(c, base); + println(); +} + +void TVout::println(uint8_t x, uint8_t y, unsigned char b, int base) +{ + cursor_x = x; + cursor_y = y; + print(b, base); + println(); +} + +void TVout::println(uint8_t x, uint8_t y, int n, int base) +{ + cursor_x = x; + cursor_y = y; + print(n, base); + println(); +} + +void TVout::println(uint8_t x, uint8_t y, unsigned int n, int base) +{ + cursor_x = x; + cursor_y = y; + print(n, base); + println(); +} + +void TVout::println(uint8_t x, uint8_t y, long n, int base) +{ + cursor_x = x; + cursor_y = y; + print(n, base); + println(); +} + +void TVout::println(uint8_t x, uint8_t y, unsigned long n, int base) +{ + cursor_x = x; + cursor_y = y; + print(n, base); + println(); +} + +void TVout::println(uint8_t x, uint8_t y, double n, int digits) +{ + cursor_x = x; + cursor_y = y; + print(n, digits); + println(); +} + +void TVout::printNumber(unsigned long n, uint8_t base) +{ + unsigned char buf[8 * sizeof(long)]; // Assumes 8-bit chars. + unsigned long i = 0; + + if (n == 0) { + print('0'); + return; + } + + while (n > 0) { + buf[i++] = n % base; + n /= base; + } + + for (; i > 0; i--) + print((char) (buf[i - 1] < 10 ? + '0' + buf[i - 1] : + 'A' + buf[i - 1] - 10)); +} + +void TVout::printFloat(double number, uint8_t digits) +{ + // Handle negative numbers + if (number < 0.0) + { + print('-'); + number = -number; + } + + // Round correctly so that print(1.999, 2) prints as "2.00" + double rounding = 0.5; + for (uint8_t i=0; i<digits; ++i) + rounding /= 10.0; + + number += rounding; + + // Extract the integer part of the number and print it + unsigned long int_part = (unsigned long)number; + double remainder = number - (double)int_part; + print(int_part); + + // Print the decimal point, but only if there are digits beyond + if (digits > 0) + print("."); + + // Extract digits from the remainder one at a time + while (digits-- > 0) + { + remainder *= 10.0; + int toPrint = int(remainder); + print(toPrint); + remainder -= toPrint; + } +}
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