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DrawChar modification

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Marián 2022-12-08 16:12:12 +01:00 committed by GitHub
parent fe68115157
commit d3bd518795
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 110 additions and 16 deletions
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116
lib/ssd1306.c
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@ -398,21 +398,22 @@ uint8_t SSD1306_SetPosition (uint8_t x, uint8_t y)
* @desc SSD1306 Update text poisition - this ensure that character will not be divided
* at the end of row, the whole character will be depicted on the new row
*
* @param void
* @param uint8_t column
* @param uint8_t page
*
* @return uint8_t
*/
uint8_t SSD1306_UpdatePosition (void)
uint8_t SSD1306_UpdatePosition (x, p)
{
uint8_t status = INIT_STATUS; // TWI init status 0xFF
uint8_t x = _indexCol + CHARS_COLS_LENGTH + 1; // check end col position
//uint8_t x = _indexCol + CHARS_COLS_LENGTH + 1; // check end col position
// check position
// -------------------------------------------------------------------------------------
if (x > END_COLUMN_ADDR) {
// last page not reached
// -----------------------------------------------------------------------------------
if (_indexPage < END_PAGE_ADDR) {
if (p < END_PAGE_ADDR) {
_indexCol = 0; // update column
_indexPage = _indexPage + 1; // update page
status = SSD1306_SetPosition (_indexCol, _indexPage); // update position
@ -422,7 +423,7 @@ uint8_t SSD1306_UpdatePosition (void)
}
// last page reached
// -----------------------------------------------------------------------------------
if (_indexPage >= END_PAGE_ADDR) {
if (p >= END_PAGE_ADDR) {
return SSD1306_ERROR; // return out of range
}
}
@ -434,17 +435,21 @@ uint8_t SSD1306_UpdatePosition (void)
* @desc SSD1306 Draw character
*
* @param char character
* @param enum font
*
* @return uint8_t
*/
uint8_t SSD1306_DrawChar (char ch)
uint8_t SSD1306_DrawChar (char ch, enum E_Font font)
{
uint8_t byte;
uint8_t status = INIT_STATUS; // TWI init status 0xFF
uint16_t i = 0; // counter
uint8_t next_x = _indexCol + CHARS_COLS_LENGTH + 1;
uint8_t next_p = _indexPage;
// update text position
// UPDATE / CHECK TEXT POSITION
// -------------------------------------------------------------------------------------
status = SSD1306_UpdatePosition();
status = SSD1306_UpdatePosition(next_x, next_p);
if (SSD1306_SUCCESS != status) { // check status
return status; // error
}
@ -461,14 +466,43 @@ uint8_t SSD1306_DrawChar (char ch)
if (SSD1306_SUCCESS != status) { // check status
return status; // error
}
// send character byte to memory lcd
// NORMAL FONT
// -------------------------------------------------------------------------------------
if (font == NORMAL) {
while (i < CHARS_COLS_LENGTH) {
status = TWI_MT_Send_Data (pgm_read_byte (&FONTS[ch-32][i])); // send data col
byte = pgm_read_byte (&FONTS[ch-32][i]);
status = TWI_MT_Send_Data (byte); // send data col
if (SSD1306_SUCCESS != status) { // check status
return status; // error
}
i++; // update counter
_indexCol++; // update global col
}
// BOLD FONT
// -------------------------------------------------------------------------------------
} else if (font == BOLD) {
while (i < CHARS_COLS_LENGTH) {
byte = pgm_read_byte (&FONTS[ch-32][i]);
status = TWI_MT_Send_Data (byte); // send data col
status = TWI_MT_Send_Data (byte); // send data col
if (SSD1306_SUCCESS != status) { // check status
return status; // error
}
i++; // update counter
_indexCol++; // update global col
}
// UNDERLINE FONT
// -------------------------------------------------------------------------------------
} else if (font == UNDERLINE) {
while (i < CHARS_COLS_LENGTH) {
byte = pgm_read_byte (&FONTS[ch-32][i]) | 0x80;
status = TWI_MT_Send_Data (byte); // send data col
if (SSD1306_SUCCESS != status) { // check status
return status; // error
}
i++; // update counter
_indexCol++; // update global col
}
}
// send empty column to memory lcd
// -------------------------------------------------------------------------------------
@ -476,7 +510,67 @@ uint8_t SSD1306_DrawChar (char ch)
if (SSD1306_SUCCESS != status) { // check status
return status; // error
}
_indexCol = _indexCol + CHARS_COLS_LENGTH + 1; // update global col
_indexCol++; // update global col
// TWI STOP
// -------------------------------------------------------------------------------------
TWI_Stop ();
return SSD1306_SUCCESS; // success
}
/**
* @desc SSD1306 Draw character
*
* @param char character
*
* @return uint8_t
*/
uint8_t SSD1306_DrawCharBig (char ch)
{
uint8_t byte;
uint8_t status = INIT_STATUS; // TWI init status 0xFF
uint16_t i = 0; // counter
uint8_t next_x = _indexCol + 2*CHARS_COLS_LENGTH + 1;
uint8_t next_p = _indexPage + 1;
// UPDATE / CHECK TEXT POSITION
// -------------------------------------------------------------------------------------
status = SSD1306_UpdatePosition(next_x, next_p);
if (SSD1306_SUCCESS != status) { // check status
return status; // error
}
// TWI START & SLAW
// -------------------------------------------------------------------------------------
status = SSD1306_Send_StartAndSLAW (SSD1306_ADDR); // start & SLAW
if (SSD1306_SUCCESS != status) { // check status
return status; // error
}
// TWI control byte data stream
// -------------------------------------------------------------------------------------
status = TWI_MT_Send_Data (SSD1306_DATA_STREAM); // send data 0x40
if (SSD1306_SUCCESS != status) { // check status
return status; // error
}
// FONT 2x
// -------------------------------------------------------------------------------------
while (i < CHARS_COLS_LENGTH) {
byte = pgm_read_byte (&FONTS[ch-32][i]);
status = TWI_MT_Send_Data (byte); // send data col
if (SSD1306_SUCCESS != status) { // check status
return status; // error
}
i++; // update counter
_indexCol++; // update global col
}
// send empty column to memory lcd
// -------------------------------------------------------------------------------------
status = TWI_MT_Send_Data (CLEAR_COLOR); // ONE empty column
if (SSD1306_SUCCESS != status) { // check status
return status; // error
}
_indexCol++; // update global col
// TWI STOP
// -------------------------------------------------------------------------------------