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Consolidate, optimize some LCD menu code (#12450)

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This commit is contained in:
Scott Lahteine
2018-11-16 21:44:48 -06:00
committed by GitHub
parent d97e31db4c
commit 3e9ffaddb6
4 changed files with 68 additions and 99 deletions
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49
Marlin/src/lcd/HD44780/ultralcd_HD44780.cpp
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@ -363,10 +363,7 @@ void MarlinUI::clear_lcd() { lcd.clear(); }
// Fits into,
lcd_moveto(col, line);
lcd_put_u8str_max_P(text, len);
while (slen < len) {
lcd_put_wchar(' ');
++slen;
}
for (; slen < len; ++slen) lcd_put_wchar(' ');
safe_delay(time);
}
else {
@ -381,11 +378,7 @@ void MarlinUI::clear_lcd() { lcd.clear(); }
lcd_put_u8str_max_P(p, len);
// Fill with spaces
uint8_t ix = slen - i;
while (ix < len) {
lcd_put_wchar(' ');
++ix;
}
for (uint8_t ix = slen - i; ix < len; ++ix) lcd_put_wchar(' ');
// Delay
safe_delay(dly);
@ -995,7 +988,7 @@ void MarlinUI::draw_status_screen() {
lcd_moveto(0, row);
lcd_put_wchar(sel ? pre_char : ' ');
n -= lcd_put_u8str_max_P(pstr, n);
while (n--) lcd_put_wchar(' ');
for (; n; --n) lcd_put_wchar(' ');
lcd_put_wchar(post_char);
}
@ -1005,7 +998,7 @@ void MarlinUI::draw_status_screen() {
lcd_put_wchar(sel ? LCD_STR_ARROW_RIGHT[0] : ' ');
n -= lcd_put_u8str_max_P(pstr, n);
lcd_put_wchar(':');
while (n--) lcd_put_wchar(' ');
for (; n; --n) lcd_put_wchar(' ');
if (pgm) lcd_put_u8str_P(data); else lcd_put_u8str(data);
}
@ -1025,40 +1018,14 @@ void MarlinUI::draw_status_screen() {
#if ENABLED(SDSUPPORT)
void draw_sd_menu_item(const bool sel, const uint8_t row, PGM_P const pstr, CardReader &theCard, const bool isDir) {
const char post_char = isDir ? LCD_STR_FOLDER[0] : ' ',
sel_char = sel ? LCD_STR_ARROW_RIGHT[0] : ' ';
UNUSED(pstr);
lcd_moveto(0, row);
lcd_put_wchar(sel_char);
uint8_t n = LCD_WIDTH - 2;
const char *outstr = theCard.longest_filename();
if (theCard.longFilename[0]) {
#if ENABLED(SCROLL_LONG_FILENAMES)
static uint8_t filename_scroll_hash;
if (sel) {
uint8_t name_hash = row;
for (uint8_t l = FILENAME_LENGTH; l--;)
name_hash = ((name_hash << 1) | (name_hash >> 7)) ^ theCard.filename[l]; // rotate, xor
if (filename_scroll_hash != name_hash) { // If the hash changed...
filename_scroll_hash = name_hash; // Save the new hash
ui.filename_scroll_max = MAX(0, utf8_strlen(theCard.longFilename) - n); // Update the scroll limit
ui.filename_scroll_pos = 0; // Reset scroll to the start
ui.lcd_status_update_delay = 8; // Don't scroll right away
}
outstr += ui.filename_scroll_pos;
}
#else
theCard.longFilename[n] = '\0'; // cutoff at screen edge
#endif
}
lcd_moveto(0, row);
lcd_put_wchar(sel_char);
n -= lcd_put_u8str_max(outstr, n);
lcd_put_wchar(sel ? LCD_STR_ARROW_RIGHT[0] : ' ');
constexpr uint8_t maxlen = LCD_WIDTH - 2;
uint8_t n = maxlen - lcd_put_u8str_max(ui.scrolled_filename(theCard, maxlen, row, sel), maxlen);
for (; n; --n) lcd_put_wchar(' ');
lcd_put_wchar(post_char);
lcd_put_wchar(isDir ? LCD_STR_FOLDER[0] : ' ');
}
#endif // SDSUPPORT