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#include "SSD1306Display.h"
bool SSD1306Display::i2c_probe(TwoWire& wire, uint8_t addr) {
wire.beginTransmission(addr);
uint8_t error = wire.endTransmission();
return (error == 0);
}
// Color scheme
ColorVal UIColor::window_bkg = SSD1306_BLACK;
ColorVal UIColor::title_bkg = SSD1306_WHITE;
ColorVal UIColor::title_txt = SSD1306_BLACK;
ColorVal UIColor::primary_txt = SSD1306_WHITE;
ColorVal UIColor::secondary_txt = SSD1306_WHITE;
ColorVal UIColor::warning_txt = SSD1306_WHITE;
ColorVal UIColor::popup_bkg = SSD1306_WHITE;
ColorVal UIColor::popup_txt = SSD1306_BLACK;
ColorVal UIColor::corp_blue = SSD1306_WHITE;
bool SSD1306Display::begin() {
if (!_isOn) {
if (_peripher_power) _peripher_power->claim();
_isOn = true;
}
#ifdef DISPLAY_ROTATION
display.setRotation(DISPLAY_ROTATION);
#endif
return display.begin(SSD1306_SWITCHCAPVCC, DISPLAY_ADDRESS, true, false) && i2c_probe(Wire, DISPLAY_ADDRESS);
}
void SSD1306Display::turnOn() {
if (!_isOn) {
if (_peripher_power) _peripher_power->claim();
_isOn = true; // set before begin() to prevent double claim
if (_peripher_power) begin(); // re-init display after power was cut
}
display.ssd1306_command(SSD1306_DISPLAYON);
}
void SSD1306Display::turnOff() {
display.ssd1306_command(SSD1306_DISPLAYOFF);
if (_isOn) {
if (_peripher_power) {
#if PIN_OLED_RESET >= 0
digitalWrite(PIN_OLED_RESET, LOW);
#endif
_peripher_power->release();
}
_isOn = false;
}
}
void SSD1306Display::clear() {
display.clearDisplay();
display.display();
}
void SSD1306Display::startFrame(ColorVal bkg) {
display.clearDisplay(); // TODO: apply 'bkg'
_color = SSD1306_WHITE;
display.setTextColor(_color);
display.setTextSize(1);
display.cp437(true); // Use full 256 char 'Code Page 437' font
}
void SSD1306Display::setTextSize(int sz) {
display.setTextSize(sz);
}
void SSD1306Display::setColor(ColorVal c) {
_color = c;
display.setTextColor(_color);
}
void SSD1306Display::setCursor(int x, int y) {
display.setCursor(x, y);
}
void SSD1306Display::print(const char* str) {
display.print(str);
}
void SSD1306Display::fillRect(int x, int y, int w, int h) {
display.fillRect(x, y, w, h, _color);
}
void SSD1306Display::drawRect(int x, int y, int w, int h) {
display.drawRect(x, y, w, h, _color);
}
void SSD1306Display::drawXbm(int x, int y, const uint8_t* bits, int w, int h) {
display.drawBitmap(x, y, bits, w, h, _color);
}
uint16_t SSD1306Display::getTextWidth(const char* str) {
int16_t x1, y1;
uint16_t w, h;
display.getTextBounds(str, 0, 0, &x1, &y1, &w, &h);
return w;
}
void SSD1306Display::endFrame() {
display.display();
}