int PutChar(uint8_t c)
{
uint8_t x = Get_x_address();
uint8_t y = Get_y_address();
if(Font == 0)
return 0; // no font selected
/*
* check for special character processing
*/
if(c < 0x20)
{
//SpecialChar(c);
return 1;
}
uint8_t width = 0;
uint8_t height = FontRead(Font+FONT_HEIGHT);
uint8_t bytes = (height+7)/8; /* calculates height in rounded up bytes */
uint8_t firstChar = FontRead(Font+FONT_FIRST_CHAR);
uint8_t charCount = FontRead(Font+FONT_CHAR_COUNT);
uint16_t index = 0;
uint8_t thielefont;
if(c < firstChar || c >= (firstChar+charCount)) {
return 0; // invalid char
}
c-= firstChar;
if( isFixedWidthFont(Font) {
thielefont = 0;
width = FontRead(Font+FONT_FIXED_WIDTH);
index = c*bytes*width+FONT_WIDTH_TABLE;
}
else{
/* --------------------------------------------------------------------------------------
* Name: GLCD_PutChar
* Function:
* Args: color=[WHITE/BLACK]
* Status: OK
* Comments:
* Revisions:
* 1) Initial Code
* --------------------------------------------------------------------------------------
* */
int GLCD_PutChar(char c) {
uint8_t width = 0;
uint8_t height = FontRead(Font+FONT_HEIGHT);
uint8_t bytes = (height+7)/GLCDLowLevel_DISPLAY_PAGE_SIZE;
uint8_t firstChar = FontRead(Font+FONT_FIRST_CHAR);
uint8_t charCount = FontRead(Font+FONT_CHAR_COUNT);
uint16_t index = 0;
uint8_t x = __GLCD_Coord.x, y = __GLCD_Coord.y/GLCDLowLevel_DISPLAY_PAGE_SIZE;
if(c < firstChar || c >= (firstChar+charCount)) {
return 1;
}
c-= firstChar;
if( FontRead(Font+FONT_LENGTH) == 0 && FontRead(Font+FONT_LENGTH+1) == 0) {
// zero length is flag indicating fixed width font (array does not contain width data entries)
width = FontRead(Font+FONT_FIXED_WIDTH);
index = c*bytes*width+FONT_WIDTH_TABLE;
}
else{
// variable width font, read width data, to get the index
uint8_t i;
for(i=0; i<c; i++) {
index += FontRead(Font+FONT_WIDTH_TABLE+i);
}
index = index*bytes+charCount+FONT_WIDTH_TABLE;
width = FontRead(Font+FONT_WIDTH_TABLE+c);
}
// Draw the character
uint8_t i;
uint8_t j;
for( i=0; i<bytes; i++) {
uint8_t page = i*width;
for(j=0; j<width; j++) {
uint8_t data = FontRead(Font+index+page+j);
if(height > 8 && height < (i+1)*8) {
data >>= (i+1)*8-height;
}
if(FontColor == BLACK) {
GLCDLowLevel_VideoRAM[x+j][y+i]|=data;
//__GLCD_WriteData(data);
} else {
GLCDLowLevel_VideoRAM[x+j][y+i]&=~data;
//__GLCD_WriteData(~data);
}
}
// 1px gap between chars
if(FontColor == BLACK) {
GLCDLowLevel_VideoRAM[x+j+1][y+i] = WHITE;
} else {
GLCDLowLevel_VideoRAM[x+j+1][y+i] = BLACK;
}
}
