unsigned char menu_char_draw(SCREENPOS posx, SCREENPOS posy, unsigned char font, unsigned char cdraw) {
unsigned char nunbyte, charwidth, nunbit;
unsigned char copyedbytes[5];
SCREENPOS tempx, tempy;
unsigned char byte_eq_count,nun;
unsigned char shrink;
if ((font & 1)) {
shrink = 0;
} else
shrink = 1;
charwidth = 0;
#ifdef ENABLE_GERMAN_UMLAUTS
if (cdraw == 196) cdraw = 127;
if ((cdraw == 214) || (cdraw == 246)) cdraw = 128;
if ((cdraw == 220) || (cdraw == 252)) cdraw = 129;
if (cdraw == 228) cdraw = 130;
if (cdraw == 223) cdraw = 131;
#endif
cdraw -= 32;
if (cdraw < MENU_CHARACTERS) { //valid character
#ifdef STOREINRAM
memcpy(copyedbytes,characters+cdraw*5,5);
#else
memcpy_P(copyedbytes,characters+cdraw*5,5);
#endif
//automated shortening of chars
if (shrink != 0) {
byte_eq_count = 0;
for (nun = 0; nun < 4; nun++) {
byte_eq_count++;
if (copyedbytes[nun] != copyedbytes[nun+1]) {
byte_eq_count = 0;
}
if (byte_eq_count == 2) {
//remove one byte, if it repeated three times
copyedbytes[nun] = 0;
}
if (byte_eq_count == 4) {
//if there are 5 bytes equal, we remove a second one
copyedbytes[nun] = 0;
}
} //end of loop
} //end if shrink != 0
for (nunbyte = 0; nunbyte < 5;nunbyte++) {
tempx = posx+charwidth;
if (tempx < posx+charwidth) {
break; //prevent overflow to the left side of the screen
}
for (nunbit = 0; nunbit < 7;nunbit++) {
tempy = posy+nunbit;
if ((copyedbytes[nunbyte] & (0x01<<nunbit)) != 0) {
menu_screen_set(tempx, tempy, 1);
} else
menu_screen_set(tempx, tempy, 0);
} //end: inner loop
if (font & 2)
menu_screen_set(tempx, posy+7, 1);
if ((copyedbytes[nunbyte] != 0) || (shrink == 0)) {
charwidth++;
} //end: charwidth++
} //end: outer loop
if (font & 2) { //underline empty part between chars (this is not perfect on word ending)
//printf("%i, %i\n", posx, charwidth);
menu_screen_set(posx+charwidth, posy+7, 1);
}
} //end: valid char
return charwidth++;
} //end: function
unsigned char menu_char_draw(SCREENPOS posx, SCREENPOS posy, unsigned char font, unsigned char cdraw) {
unsigned char nunbyte, charwidth, nunbit, patternbyte, patternbit;
#if defined(MENU_TEXT_ENABLE_8X15)
unsigned char copyedbytes[MENU_TEXT_8X15_BYTES];
#else
unsigned char copyedbytes[MENU_TEXT_5X7_BYTES];
#endif
SCREENPOS tempx, tempy;
unsigned char byte_eq_count,nun;
/* level of char shrinking:
0: Fixed with
1: Width defined by character within array, only empty colums are removed.
2: three or four same colums -> remove one. five same colums -> remove two.
3: two -> remove one. three or four -> remove two. five -> remove three
*/
unsigned char shrink = 0;
unsigned char fontheight;
//------------------- UTF-8 decoding ----------------------
#if defined(MENU_USE_UTF8)
unsigned long cdrawx;
//catch utf8 chars
#ifndef MENU_ENABLE_SPECIAL_CHARS
if (cdraw >= (MENU_CHARACTERS + MENU_CHARACTER_TABLE_OFFSET)) { //its something for utf-8
if (!g_menu_utf8_state) {
//a new char begins
g_menu_utf8_char = cdraw;
if ((cdraw & 0xE0) == 0xC0) {
g_menu_utf8_state = 1;
}
if ((cdraw & 0xF0) == 0xE0) {
g_menu_utf8_state = 2;
}
if ((cdraw & 0xF8) == 0xF0) {
g_menu_utf8_state = 3;
}
return -1; //symbol not complete, 255 = -1 do not go one pixel to the right
} else {
g_menu_utf8_char <<= 8;
g_menu_utf8_char |= cdraw;
g_menu_utf8_state--;
if (g_menu_utf8_state) {
return 0; //symbol not complete
}
cdrawx = g_menu_utf8_char; //symbol complete
}
} else {
g_menu_utf8_state = 0; //reset state
cdrawx = cdraw;
}
#else
//for backward compatibility only
cdrawx = cdraw;
if (cdraw == 196) cdrawx = 0xC384; //Ä
if (cdraw == 214) cdrawx = 0xC396; //Ö
if (cdraw == 220) cdrawx = 0xC39C; //Ü
if (cdraw == 228) cdrawx = 0xC3A4; //ä
if (cdraw == 246) cdrawx = 0xC3B6; //ö
if (cdraw == 252) cdrawx = 0xC3BC; //ü
if (cdraw == 223) cdrawx = 0xC39F; //ß
if (cdraw == 0xB0) cdrawx = 0xC2B0; //°
#endif
#else
unsigned char cdrawx = cdraw;
#endif
//--------------- special handling... ------------------------------------------
if (MENU_CHECK_FONT_5X5) {
if (cdraw == 9) { //its a tab, make same width as digits -> easy blinking (safe to use cdraw instead of cdrawx here)
return 3;
}
}
//--------------- determine data source ----------------------------------------
const char * bmpsource = NULL;
char bmpsize = 0;
char bmpwidth = 0;
if (MENU_CHECK_FONT_5X5) {
bmpsize = MENU_TEXT_5X5_BYTES;
bmpwidth = MENU_TEXT_5X5_WIDTH;
}
if (MENU_CHECK_FONT_5X7) {
bmpsize = MENU_TEXT_5X7_BYTES;
bmpwidth = MENU_TEXT_5X7_WIDTH;
}
if (MENU_CHECK_FONT_8X15) {
bmpsize = MENU_TEXT_8X15_BYTES;
bmpwidth = MENU_TEXT_8X15_WIDTH;
}
if ((cdrawx < (MENU_CHARACTERS + MENU_CHARACTER_TABLE_OFFSET)) &&
(cdrawx >= MENU_CHARACTER_TABLE_OFFSET)) { //simple ASCII case, cdraw = cdrawx
cdraw -= MENU_CHARACTER_TABLE_OFFSET;
if (MENU_CHECK_FONT_5X5) {
bmpsource = &(characters_5x5[MENU_TEXT_5X5_BYTES * cdraw]);
}
if (MENU_CHECK_FONT_5X7) {
bmpsource = &(characters_5x7[MENU_TEXT_5X7_BYTES * cdraw]);
}
if (MENU_CHECK_FONT_8X15) {
bmpsource = &(characters_8x15[MENU_TEXT_8X15_BYTES * cdraw]);
}
}
#if defined(MENU_USE_UTF8)
else {
bmpsource = menu_get_pBitmap(cdrawx, font);
}
#endif
if (!bmpsource) {
MENU_DEBUGMSG("Error: no bitmap for char 0x%lx\r\n", (unsigned long)cdrawx);
return 0;
}
//--------------- copy bitmask to buffer ---------------------------------------
COPYFUNCTION(copyedbytes, bmpsource, bmpsize);
//------------- prepare drawing by evaluating actual size of the character -----
if (MENU_CHECK_FONT_5X5) {
shrink = font - 12;
}
if (MENU_CHECK_FONT_5X7) {
if ((font == 0) || (font == 2)) {
shrink = 2;
}
}
if (MENU_CHECK_FONT_8X15) {
if ((font == 4) || (font == 6)) {
shrink = 2;
}
}
charwidth = 0;
//automated shortening of chars
if (shrink > 1) {
byte_eq_count = 0;
for (nun = 0; nun < bmpwidth-1; nun++) {
byte_eq_count++;
if (copyedbytes[nun] != copyedbytes[nun+1]) {
byte_eq_count = 0;
}
if (MENU_CHECK_FONT_5X5) {
if ((byte_eq_count == 1) && (shrink == 3)) {
copyedbytes[nun] = 0;
}
if ((nun > 0) && (font == 14) && (byte_eq_count == 1) &&
(copyedbytes[nun-1]) && (cdraw >= ('0' - MENU_CHARACTER_TABLE_OFFSET)) &&
(cdraw <= ('9' - MENU_CHARACTER_TABLE_OFFSET))) {
//shortens numbers to 3 pixel witdh, but no less. Relevant for 3 and 7.
copyedbytes[nun] = 0;
}
}
if (MENU_CHECK_FONT_8X15) {
if (copyedbytes[nun + MENU_TEXT_8X15_WIDTH] != copyedbytes[nun + MENU_TEXT_8X15_WIDTH + 1]) {
byte_eq_count = 0;
}
}
if (byte_eq_count == 2) {
//remove one byte, if it repeated three times
copyedbytes[nun] = 0;
if (MENU_CHECK_FONT_8X15) {
copyedbytes[nun + MENU_TEXT_8X15_WIDTH] = 0;
}
}
if (byte_eq_count == 4) {
//if there are 5 bytes equal, we remove a second one
copyedbytes[nun] = 0;
if (MENU_CHECK_FONT_8X15) {
copyedbytes[nun + MENU_TEXT_8X15_WIDTH] = 0;
}
}
} //end of loop
} //end if shrink != 0
fontheight = menu_font_heigth(font);
if (MENU_CHECK_FONT_UNDERLINED) { //only valid for font 2, 3, 6, 7
fontheight--; //no underline here
}
//------------------- actually draw --------------------------------------------
for (nunbyte = 0; nunbyte < bmpwidth; nunbyte++) {
tempx = posx+charwidth;
if (tempx < posx+charwidth) {
break; //prevent overflow to the left side of the screen
}
patternbyte = copyedbytes[nunbyte];
patternbit = 1;
for (nunbit = 0; nunbit < fontheight; nunbit++) {
if (MENU_CHECK_FONT_8X15) {
if (!patternbit) {
patternbit = 1;
patternbyte = copyedbytes[nunbyte + bmpwidth];
}
}
tempy = posy+nunbit;
if ((patternbyte & patternbit) != 0) {
menu_screen_set(tempx, tempy, 1);
} else {
menu_screen_set(tempx, tempy, 0);
}
patternbit <<= 1;
} //end: inner loop
if (MENU_CHECK_FONT_UNDERLINED) { //only valid for font 2, 3, 6, 7
menu_screen_set(tempx, posy + fontheight, 1);//underline fonts
}
if ((copyedbytes[nunbyte] != 0) || (shrink == 0) ||
((MENU_CHECK_FONT_8X15) && (copyedbytes[nunbyte + MENU_TEXT_8X15_WIDTH] != 0))) {
charwidth++;
} //end: charwidth++
} //end: outer loop
#ifdef MENU_USE_FONT_14
if ((font == 14) && (cdraw == ('1' - MENU_CHARACTER_TABLE_OFFSET))) {
charwidth = 3;
}
#endif
if (MENU_CHECK_FONT_UNDERLINED) { //only valid for font 2, 3, 6, 7
menu_screen_set(posx + charwidth, posy + fontheight, 1); //underline empty part between chars (this is not perfect on word ending)
}
return charwidth++;
} //end: function
