mirror of
https://github.com/meshcore-dev/MeshCore.git
synced 2026-03-31 06:05:56 +00:00
94 lines
2.2 KiB
C++
94 lines
2.2 KiB
C++
#include "SSD1306Display.h"
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bool SSD1306Display::i2c_probe(TwoWire& wire, uint8_t addr) {
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wire.beginTransmission(addr);
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uint8_t error = wire.endTransmission();
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return (error == 0);
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}
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bool SSD1306Display::begin() {
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if (!_isOn) {
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if (_peripher_power) _peripher_power->claim();
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_isOn = true;
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}
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#ifdef DISPLAY_ROTATION
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display.setRotation(DISPLAY_ROTATION);
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#endif
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return display.begin(SSD1306_SWITCHCAPVCC, DISPLAY_ADDRESS, true, false) && i2c_probe(Wire, DISPLAY_ADDRESS);
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}
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void SSD1306Display::turnOn() {
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if (!_isOn) {
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if (_peripher_power) _peripher_power->claim();
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_isOn = true; // set before begin() to prevent double claim
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if (_peripher_power) begin(); // re-init display after power was cut
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}
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display.ssd1306_command(SSD1306_DISPLAYON);
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}
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void SSD1306Display::turnOff() {
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display.ssd1306_command(SSD1306_DISPLAYOFF);
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if (_isOn) {
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if (_peripher_power) {
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#if PIN_OLED_RESET >= 0
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digitalWrite(PIN_OLED_RESET, LOW);
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#endif
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_peripher_power->release();
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}
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_isOn = false;
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}
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}
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void SSD1306Display::clear() {
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display.clearDisplay();
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display.display();
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}
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void SSD1306Display::startFrame(Color bkg) {
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display.clearDisplay(); // TODO: apply 'bkg'
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_color = SSD1306_WHITE;
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display.setTextColor(_color);
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display.setTextSize(1);
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display.cp437(true); // Use full 256 char 'Code Page 437' font
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}
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void SSD1306Display::setTextSize(int sz) {
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display.setTextSize(sz);
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}
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void SSD1306Display::setColor(Color c) {
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_color = (c != 0) ? SSD1306_WHITE : SSD1306_BLACK;
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display.setTextColor(_color);
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}
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void SSD1306Display::setCursor(int x, int y) {
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display.setCursor(x, y);
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}
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void SSD1306Display::print(const char* str) {
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display.print(str);
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}
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void SSD1306Display::fillRect(int x, int y, int w, int h) {
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display.fillRect(x, y, w, h, _color);
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}
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void SSD1306Display::drawRect(int x, int y, int w, int h) {
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display.drawRect(x, y, w, h, _color);
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}
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void SSD1306Display::drawXbm(int x, int y, const uint8_t* bits, int w, int h) {
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display.drawBitmap(x, y, bits, w, h, SSD1306_WHITE);
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}
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uint16_t SSD1306Display::getTextWidth(const char* str) {
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int16_t x1, y1;
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uint16_t w, h;
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display.getTextBounds(str, 0, 0, &x1, &y1, &w, &h);
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return w;
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}
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void SSD1306Display::endFrame() {
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display.display();
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}
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