void MD_MAX72XX::controlLibrary(controlRequest_t mode, int value)
// control command was internal, set required parameters
{
switch (mode)
{
case UPDATE:
_updateEnabled = (value == ON);
if (_updateEnabled) flushBufferAll();
break;
case WRAPAROUND:
_wrapAround = (value == ON);
break;
}
}
uint8_t MD_MAX72XX::setChar(uint16_t col, uint8_t c)
{
PRINT("\nsetChar: '", c);
PRINT("' column ", col);
boolean b = _updateEnabled;
uint16_t offset = getFontCharOffset(c);
uint8_t size = pgm_read_byte(_fontData+offset);
offset++; // skip the size byte
_updateEnabled = false;
for (int8_t i=0; i<size; i++)
{
uint8_t colData = pgm_read_byte(_fontData+offset+i);
setColumn(col--, colData);
}
_updateEnabled = b;
if (_updateEnabled) flushBufferAll();
return(size);
}
