void TemperatureWriter::redraw(FlashGraphics& flash,const Point& p,const DefaultTemperatureReader::Result& result) {
uint16_t width;
if(result.Status==DefaultTemperatureReader::Result::NO_ERROR) {
// clear broken symbol
Panel::LcdPanel& gl(flash.getGraphicsLibrary());
gl.setBackground(_backgroundColour);
gl.clearRectangle(Rectangle(p.X+_brokenIconOffset.Width,p.Y+_height-BROKEN_HEIGHT+_brokenIconOffset.Height,_digits[BROKEN].Width,BROKEN_HEIGHT));
// write the number
width=IntegerNumberWriter::write(flash,p,result.Temperature);
// write the degrees C symbol
flash.drawBitmap(
Rectangle(p.X+width,p.Y,_digits[DEGREES_C].Width,_height),
_digits[DEGREES_C].FlashAddress,
_digits[DEGREES_C].Length);
width+=_digits[DEGREES_C].Width;
// erase any background overhang from last time
if(width<_lastWidth) {
Panel::LcdPanel& gl(flash.getGraphicsLibrary());
gl.setBackground(_backgroundColour);
gl.clearRectangle(Rectangle(p.X+width,p.Y,_lastWidth-width,_height));
}
_lastWidth=width;
}
else {
// erase any background overhang from last time it shows a temperature value
Panel::LcdPanel& gl(flash.getGraphicsLibrary());
gl.setBackground(_backgroundColour);
gl.clearRectangle(Rectangle(p.X,p.Y,_brokenIconOffset.Width,_height));
// there's something wrong with the comms, show a "broken" icon
flash.drawBitmap(
Rectangle(p.X+_brokenIconOffset.Width,p.Y+_height-BROKEN_HEIGHT+_brokenIconOffset.Height,_digits[BROKEN].Width,BROKEN_HEIGHT),
_digits[BROKEN].FlashAddress,
_digits[BROKEN].Length);
}
}
