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05f50a18fd
* extract disp from io * extract screen_disp * working * ... * working * refactor * config
107 lines
1.7 KiB
C++
107 lines
1.7 KiB
C++
#include <Arduino.h>
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#include <memory.h>
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#include <display.h>
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#include <serial_dsp.h>
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#include <timed.h>
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#include <hardware.h>
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#include "disp.h"
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#include "screen_disp.h"
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#include "config.h"
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static screen_disp *i;
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const int TICK_FREQ = 2;
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void IRAM_ATTR screen_disp::on_tick() {
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static int tick = 0;
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tick = ++tick % 3;
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i->cursor(tick < 2);
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}
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void screen_disp::reset() {
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if (!i) {
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i = this;
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timer_create(TICK_FREQ, on_tick);
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}
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Display::begin(BG_COLOUR, FG_COLOUR, ORIENT);
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Display::clear();
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_cy += 2;
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r = c = 0;
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for (int j = 0; j < ROWS; j++)
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for (int i = 0; i < COLS; i++)
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screen[j][i] = ' ';
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}
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void screen_disp::cursor(bool on) {
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draw(on? '_': ' ', c, r);
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}
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void screen_disp::draw(char ch, int i, int j) {
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if (screen[j][i] != ch) {
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screen[j][i] = ch;
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char c[2] = { ch, 0 };
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drawString(c, i*_cx, j*_cy);
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}
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}
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void screen_disp::write(uint8_t b) {
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char ch = (char)b;
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switch(ch) {
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case '_':
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draw(' ', c, r);
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if (c-- == 0) {
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r--;
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c = COLS-1;
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}
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break;
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case 0x0d:
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draw(' ', c, r);
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c = 0;
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r++;
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break;
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default:
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if (ch >= 0x20 && ch < 0x7f) {
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draw(ch, c, r);
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if (++c == COLS) {
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c = 0;
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r++;
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}
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}
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}
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if (r == ROWS) {
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// scroll
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r--;
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for (int j = 0; j < (ROWS-1); j++)
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for (int i = 0; i < COLS; i++)
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draw(screen[j+1][i], i, j);
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for (int i = 0; i < COLS; i++)
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draw(' ', i, ROWS-1);
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}
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draw('_', c, r);
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}
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void screen_disp::checkpoint(Stream &s) {
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s.write(r);
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s.write(c);
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for (int j = 0; j < ROWS; j++)
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for (int i = 0; i < COLS; i++)
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s.write(screen[j][i]);
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}
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void screen_disp::restore(Stream &s) {
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r = s.read();
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c = s.read();
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for (int j = 0; j < ROWS; j++)
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for (int i = 0; i < COLS; i++) {
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char c = s.read();
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screen[j][i] = c;
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draw(c, i, j);
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}
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draw('_', c, r);
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}
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