Jan/WLED_MM_Infinity
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trying to keep scrolling text readable

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the problem (partly solved) is that scrolling text does not erase any previous text, but simply paints pixels in addition.

* add a "shadow" area around each letter, which is explicitly painted black
* only possible when  Trail=0, and overlay option selected
This commit is contained in:
Frank
2024-09-28 02:12:53 +02:00
parent 0ca3f136b1
commit 3a506aded2
3 changed files with 32 additions and 10 deletions
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5
wled00/FX.cpp
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@@ -6371,7 +6371,7 @@ uint16_t mode_2Dscrollingtext(void) {
if (SEGMENT.name) for (size_t i=0,j=0; i<maxLen; i++) if (SEGMENT.name[i]>31 && SEGMENT.name[i]<128) text[j++] = SEGMENT.name[i];
const bool zero = strchr(text, '0') != nullptr;
if (!strlen(text) || !strncmp_P(text,PSTR("#F"),2) || !strncmp_P(text,PSTR("#P"),2) || !strncmp_P(text,PSTR("#DATE"),5) || !strncmp_P(text,PSTR("#DDMM"),5) || !strncmp_P(text,PSTR("#MMDD"),5) || !strncmp_P(text,PSTR("#TIME"),5) || !strncmp_P(text,PSTR("#HH"),3) || !strncmp_P(text,PSTR("#MM"),3)) { // fallback if empty segment name: display date and time
if (!strlen(text) || !strncmp_P(text,PSTR("#F"),2) || !strncmp_P(text,PSTR("#P"),2) || !strncmp_P(text,PSTR("#A"),2) || !strncmp_P(text,PSTR("#DATE"),5) || !strncmp_P(text,PSTR("#DDMM"),5) || !strncmp_P(text,PSTR("#MMDD"),5) || !strncmp_P(text,PSTR("#TIME"),5) || !strncmp_P(text,PSTR("#HH"),3) || !strncmp_P(text,PSTR("#MM"),3)) { // fallback if empty segment name: display date and time
char sec[5]= {'\0'};
byte AmPmHour = hour(localTime);
boolean isitAM = true;
@@ -6404,6 +6404,7 @@ uint16_t mode_2Dscrollingtext(void) {
SEGMENT.blendPixelColorXY(x, y, SEGCOLOR(1), 255 - (SEGMENT.custom1>>1));
}
}
bool drawShadow = (SEGMENT.check2) && (SEGMENT.custom1 == 0);
for (int i = 0; i < numberOfLetters; i++) {
if (int(cols) - int(SEGENV.aux0) + letterWidth*(i+1) < 0) continue; // don't draw characters off-screen
uint32_t col1 = SEGMENT.color_from_palette(SEGENV.aux1, false, PALETTE_SOLID_WRAP, 0);
@@ -6412,7 +6413,7 @@ uint16_t mode_2Dscrollingtext(void) {
col1 = SEGCOLOR(0);
col2 = SEGCOLOR(2);
}
SEGMENT.drawCharacter(text[i], int(cols) - int(SEGENV.aux0) + letterWidth*i, yoffset, letterWidth, letterHeight, col1, col2);
SEGMENT.drawCharacter(text[i], int(cols) - int(SEGENV.aux0) + letterWidth*i, yoffset, letterWidth, letterHeight, col1, col2, drawShadow);
}
return FRAMETIME;